Abstract

In order to overcome the problems existing in the prior art, provided is an electrical cabinet, comprising: a cabinet body, wherein the cabinet body is provided with an accommodating space, and a front side of the accommodating space is opened to form an opening; a cabinet door, wherein the cabinet door is pivotably arranged on the cabinet body to open or close the opening; and a sliding frame and a carrier plate, wherein the sliding frame is arranged in the accommodating space and can slide back and forth between a first position away from the opening and a second position adjacent to the opening, the carrier plate is arranged on the sliding frame and can be pivoted between a third position and a fourth position, when the carrier plate is located at the third position, the carrier plate is accommodated in the accommodating space, when the sliding frame is located at the second position, the carrier plate can be rotated to the fourth position from the third position, and when the carrier plate is located at the fourth position, the carrier plate is located outside the opening. In the electrical cabinet, the problems in the prior art can be effectively solved.

IPC Classes  ?

• H05K 7/14 - Mounting supporting structure in casing or on frame or rack
• H05K 7/18 - Construction of rack or frame
• H05K 7/20 - Modifications to facilitate cooling, ventilating, or heating

Abstract

In order to solve the problem of training new employees in the existing waste-to-energy plants, the present invention provides a manufacture method for computer-simulated training of an operation of a waste-to-energy plant, comprising: establishing a remote login module and a local control station depth simulation operation module, the local control station depth simulation operation module further comprising a fire grate temperature monitoring picture (flame monitoring) module, an environment-protection monitoring data anomaly marking picture display module, and an operation switch 3D model and an operation module thereof. By establishing said modules, a complete operating simulation training method capable of realistically combining waste-to-energy plant grate operating and process flow is established, so as to satisfy the requirements of realistic training of new employees in waste-to-energy plants.

IPC Classes  ?

• G09B 9/00 - Simulators for teaching or training purposes
• G05B 23/02 - Electric testing or monitoring

Abstract

A water-cooling screw ash conveying device for a power plant, comprising a screw ash conveyor body (1). An arc-shaped sliding groove (2) is formed on each of the left and right sides of the upper surface of the screw ash conveyor body (1); a sliding block (3) is slidably clamped on the inner wall of the arc-shaped sliding groove (2); a top plate (5) is fixedly assembled at the top end of each of the two sliding blocks (3); an opening (4) is formed on the upper surface of the screw ash conveyor body (1). By means of matching between the opening (4) and the top plates (5) and by means of matching between the sliding blocks (3) and the arc-shaped sliding grooves (2), during use, residues are conveyed internally after the screw ash conveyor body (1) is started; during conveying, the residues contact insertion rods (16) on the lower surfaces of the top plates (5); during contact, the residues are dispersed to avoid getting stuck in threads in the screw ash conveyor body (1). By means of matching between the sliding blocks (3) and the arc-shaped sliding grooves (2) and by means of matching between a supporting rod (7) and a connecting rod (9), during use, the supporting rod (7) can be swung for swinging; when the supporting rod (7) is swung, the connecting rod (9) drives the top plates (5) to move within a small range, and the sliding blocks (3) and the arc-shaped sliding grooves (2) limit the positions of the top plates (5); during moving, the insertion rods (16) contact the stuck residues, and the residues are dispersed during repeated moving. Residues are quickly conveyed, accidents happening when the screw ash conveyor body (1) is blocked are avoided, the practicality is enhanced, and problems in the prior art are effectively solved.

IPC Classes  ?

• B65G 33/14 - Screw or rotary spiral conveyors for fluent solid materials comprising a screw or screws enclosed in a tubular housing
• B65G 33/24 - Screw or rotary spiral conveyors Details

Abstract

Provided is a deslagging system of inclined reciprocating type mechanical garbage incineration grate, comprising a shell (1), a feed opening (2) is arranged on the upper surface of the shell (1), a deslagging pipe (3) is arranged on the feed opening (2), mounting frames (4) are symmetrically arranged on the left side and the right side of the inner bottom surface of the shell (1) in a front-and-back symmetrical manner, a driving roller (5) is rotationally arranged between the two mounting frames (4) on the left side, a driven roller (6) is arranged between the two mounting frames (4) on the right side, a conveying belt (7) is arranged between the driving roller (5) and the driven roller (6), a motor (8) for driving the driving roller (5) is arranged on the inner bottom surface of the shell (1), a mounting sleeve (9) is arranged on the front inner side wall of the shell (1), a connecting rod (10) is arranged in the mounting sleeve (9), a mounting plate (11) is arranged at the end of the connecting rod (10) close to the conveying belt (7), a push rod (12) is arranged on the rear surface of the mounting plate (11) and is close to the conveying belt (7), under normal circumstances, the push rod (12) and the transport belt (7) must not touch each other at a certain distance, if the conveying belt (7) deviates, and the offset exceeds a preset value and makes it touch the push rod (12), a sensor (16) transmits a signal to an external processor, and the processor controls an external alarm device to give an alarm to prompt the staff.

IPC Classes  ?

• F23J 1/06 - Mechanically-operated devices, e.g. clinker pushers
• F23G 5/46 - Recuperation of heat
• B65G 43/02 - Control devices, e.g. for safety, warning or fault-correcting detecting dangerous physical condition of load- carriers, e.g. for interrupting the drive in the event of overheating

Abstract

Disclosed is a closed activated-carbon storage and conveying system. An activated-carbon buffer tank (21) and a spraying system are located in a first independent space (A), and a discharging device and a front-end storage system are newly added and arranged before the buffer tank and the spraying system and are arranged in a second independent space (B); and activated carbon is conveyed from the second independent space to the first independent space by a spiral conveyor. To ensure safety, an in-situ thermometer (24.1), an in-situ pressure gauge (24.2), a remote thermometer and a remote pressure gauge (25) are further additionally arranged at the top of an activated-carbon storage bin (8); and a pulse-type cloth-bag dust remover (6), a pressure release valve (7) and a nitrogen supply system are additionally provided. The first independent space and the second independent space are arranged separately, and a spiral conveyor (13) uses sealed conveying, such that the danger caused by the discharging of the second independent space and flying dust generated during a front-end storage operation thereof to the buffer storage and a spraying system operation of the first independent space is effectively prevented.

IPC Classes  ?

• B65G 69/18 - Preventing escape of dust
• B65G 63/00 - Transferring or trans-shipping at storage areas, railway yards or harboursMarshalling yard installations
• B65D 90/48 - Arrangements of indicating or measuring devices
• B65G 53/58 - Devices for accelerating or decelerating flow of the materialsUse of pressure generators

Abstract

Disclosed is a disinfection, sterilization and dust removal device for a power plant ventilation system. The device comprises a dust removal unit, which comprises a dust removal chamber (1). An exhaust duct (1.1) and a first fan (1.2) are arranged at an outer portion of the dust removal chamber (1), the first fan (1.2) being configured to draw the air in the dust removal chamber (1) out of the chamber via the exhaust duct (1.1). A sterilization unit and a disinfection unit are stacked beneath the dust removal unit, the sterilization unit being arranged at the middle position and the disinfection unit being arranged at the lowest position. A disinfecting solution (3.7) is in contact with the air so as to disinfect the air while removing the dust in the air. The effectiveness of air disinfection is improved by evenly mixing the disinfecting solution (3.7) with the air, subjecting the air to high-temperature sterilization by means of the sterilization unit, removing the moisture in the air, and finally, performing an electrostatic dust removal operation on the air in the dust removal unit. The device of the present invention enables disinfection, sterilization and dust removal treatment of the air in succession, ensuring that, after treatment, the air meets environmental requirements.

IPC Classes  ?

• F24F 7/08 - Ventilation with ducting systems with forced air circulation, e.g. by fan with separate ducts for supplied and exhausted air
• F24F 3/16 - Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filteringAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by sterilisationAir-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatmentApparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by ozonisation
• B08B 15/00 - Preventing escape of dirt or fumes from the area where they are producedCollecting or removing dirt or fumes from that area
• B01D 53/34 - Chemical or biological purification of waste gases
• A61L 9/14 - Disinfection, sterilisation or deodorisation of air using sprayed or atomised substances

Abstract

Disclosed is a semi-dry sludge conveying system with an intermixing device, with an intermixing mechanism (7) being provided behind an outlet of a drying machine (2) and in front of a semi-dry sludge compartment (4), and the intermixing mechanism (7) comprising an intermixing compartment (7.1), an intermixing machine (7.2) and a second wet sludge conveying system (7.3), wherein the intermixing compartment (7.1) is arranged at the underside of the drying machine (2), and sludge discharged by the drying machine (2) enters the intermixing compartment (7.1); the second wet sludge conveying system (7.3) comprises a small wet sludge compartment (7.31), a second wet sludge conveying pump (7.32) and a wet sludge conveying pipe (7.33); wet sludge in the small wet sludge compartment (7.31) is conveyed to the intermixing compartment (7.1) by means of the second wet sludge conveying pump (7.32), same is mixed, in the intermixing compartment (7.1), with chemicals conveyed by a chemical conveying pump (3) and with dried sludge from the drying machine (2), and then enters the intermixing machine (7.2) for intermixing; and moisture sensors (7.41, 7.42, 7.43) are respectively provided at the outlet of the drying machine (2), an inlet of the second wet sludge conveying pump (7.32), and an outlet of the intermixing machine (7.2) for respectively monitoring the moisture content of sludge at each position in real time. The semi-dry sludge conveying system with the intermixing device effectively controls the moisture content of the semi-dry sludge within a required range to facilitate the incineration treatment of sludge.

IPC Classes  ?

• C02F 11/00 - Treatment of sludgeDevices therefor

Abstract

A bag filter heating system for a waste incineration power plant, the bag filter heating system comprising bag filters (1A, 1B), induced draft systems (2A, 2B) and main heating circulation systems (3A, 3B), wherein the induced draft systems (2A, 2B) sequentially comprise, in an air flow direction, air intake pipes (2A21, 2B21), induced draft fans (2A1, 2B1), exhaust pipes (2A22, 2B22), silencers (2A3, 2B3) and induced draft system chimney-connecting pipes (2A4, 2B4), and the main heating circulation systems (3A, 3B) sequentially comprise, in the air flow direction, suction pipe interfaces (3A4, 3B4), hot-air blower suction pipes (3A21, 3B21), suction pipe valves (3A3, 3B3), hot-air blowers (3A1, 3B1) and hot-air blower exhaust pipes (3A22, 3B22). A shared hot-smoke system (4) is further provided. The shared hot-smoke system (4) comprises a shared communication pipe (4.1), wherein an inlet of the shared communication pipe (4.1) is connected to the exhaust pipes (2A22, 2B22) of the induced draft systems (2A, 2B) by means of output pipes (4A1, 4B1), and an outlet of the shared communication pipe (4.1) is respectively connected to the suction pipe interfaces (3A4, 3B4) by means of diverter pipes (4A3, 4B3). When main heaters of the bag filters (1A, 1B) often fail, the failed bag filters (1A, 1B) can be heated using the shared hot-smoke system (4) and using hot smoke of other induced draft systems (2A, 2B) that are in operation, ensuring that the failed bag filters (1A, 1B) can operate normally.

IPC Classes  ?

• B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
• B01D 46/42 - Auxiliary equipment or operation thereof

Abstract

A gas boiler flue gas depluming treatment system for municipal sludge drying and incineration treatment: due to the addition of an automatic smoke temperature regulation apparatus (2) with PID regulation, the automatic smoke temperature regulation apparatus (2) with PID regulation comprising a TIC temperature measurement display thermocouple (2.2) and a smart control module (2.1), and the TIC temperature measurement display thermocouple (2.2) being arranged at a chimney outlet, after the measured flue gas temperature is inputted into the smart control module (2.1), the smart control module (2.1) controls a steam system (1) to adjust the openness of a pneumatic regulating valve (1.2) such that steam enters a flue gas-steam heat exchanger (4) via a pipeline and performs heat exchange with the flue gas, and is then discharged via a drainage system (6), and the flue gas performs heat exchange with the steam at a chimney inlet via the flue gas-steam heat exchanger (4) so that the temperature further rises to implement depluming, and is then discharged from the chimney outlet. The system can be automatically regulated throughout the entire process without the need for manual intervention, and can effectively solve the problem of "white plumes" in existing sludge drying and incineration treatment.

IPC Classes  ?

• B01D 53/26 - Drying gases or vapours

Abstract

In order to overcome the problems of insufficient powder fluidity and inaccurate conveying and metering in an existing spraying and chelation treatment system, a powder material conveying device for fly ash spraying and chelation treatment is provided, which device sequentially comprises, in a conveying direction of powder materials, a negative-pressure feeding system (1), a discharging system (2) and a quantitative feeding system (3). The materials enter the quantitative feeding system after sequentially passing through the negative-pressure feeding system and the discharging system. The quantitative feeding system is used for intermittent feeding and stabilizing a feed amount to be within an appropriate range, and then, an air flow generated by Roots blowers (3.314, 3.324) of the quantitative feeding system is used for spraying the powder materials into a flue gas purification system for chelation treatment. An activating device (4) is further provided. The activating device comprises an activating bin (4.1) and a compressed air intake pipeline (4.1A), and the activating bin is arranged below the negative-pressure feeding system. During the discharging of the powder materials from the bottom of a sealed bin body (1.6), compressed air is sprayed into the activating bin of the activating device through the compressed air intake pipeline, such that material bridging inside the activating bin is prevented, so as to ensure that the powder materials smoothly enter the discharging system.

IPC Classes  ?

• B65G 53/28 - Systems utilising a combination of gas pressure and suction
• B65G 53/34 - Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam Details
• B65G 53/48 - Screws or like rotary conveyors

Abstract

to be measuredto be measuredto be measured into the X axis according to the obtained sludge color difference-calorific value curve (△E-Q). Said method can effectively solve the problems of high costs, heavy workload intensity, high requirement on the degree of proficiency of a skilled personnel, etc. brought about by measuring the calorific value of a sludge by using the heat capacity method currently.

IPC Classes  ?

• G01N 21/31 - Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
• G06F 17/18 - Complex mathematical operations for evaluating statistical data

Abstract

A conveying system for deeply dewatered sludge. The left side and the right side of the bottom of a sludge storage bin (1) are respectively provided with a double-shaft spiral conveyor (3, 4), so that the problem of blockage and bridging of the sludge storage bin (1) is solved, and dead angles can be effectively prevented from being formed in the moving process of a feeding sliding frame (2). Moreover, a set of pipeline resistance reducing system (8) for lubricating sludge conveying is further provided at an outlet of a sludge conveying pump (6); a lubricating medium is injected into the pipeline resistance reducing system (8) by means of a medium high-pressure plunger pump (8.2) for infiltration of deeply dewatered sludge in a medium pipeline (8.4) of the pipeline resistance reducing system (8) to form a resistance-reduction lubricating liquid film, so that resistance generated in the pipeline conveying process of the deeply dewatered sludge is effectively reduced, and long-distance conveying of the deeply dewatered sludge is achieved; moreover, waste oil can be utilized as a lubricating agent for the lubricating medium, and comprehensive utilization of resources is achieved.

IPC Classes  ?

• C02F 11/14 - Treatment of sludgeDevices therefor by de-watering, drying or thickening with addition of chemical agents

Abstract

A fly ash chelate sampling device for a domestic waste incineration power plant, comprising an electric drill (1), a drill bit (2), and a sleeve groove (3) disposed on the drill bit (2), wherein the sleeve groove (3) has an inner tube (3.1), an outer tube (3.2) and a base (3.3); a fly ash accommodating space (3.1.2) is formed between the inner tube (3.1) and the outer tube (3.2); the inner tube (3.1) has a through hole (3.4), the diameter of which matches the size of the drill bit (2), and the drill bit (2) can pass through the through hole; and during a drilling and sampling process, drill cuttings (4.1) of the drill bit (2) surround the drill bit (2) and are spun upwards until the drill cuttings fall on a nozzle of the sleeve groove (3) into the accommodating space (3.1.2). The sampling device has low fabrication costs, is simple and practical, and is convenient and quick to operate when sampling.

IPC Classes  ?

• G01N 1/08 - Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
• E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil

Abstract

to be measuredto be measured is substituted into an X axis according to the obtained sludge volatile-calorific value curve (A%-Q), so that a corresponding calorific value Q (i.e., the value of the Y coordinate) can be directly found in the curve. The present invention can effectively solve the problems of high cost, high workload intensity, high requirements for the operating proficiency of technicians and the like caused by measuring the sludge calorific value by using a heat capacity method.

IPC Classes  ?

• G01N 5/04 - Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by removing a component, e.g. by evaporation, and weighing the remainder
• G01N 7/16 - Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference by heating the material
• G01N 25/00 - Investigating or analysing materials by the use of thermal means

Abstract

A method for the cooperative treatment of kitchen waste, household waste and sewage plant sludge. A household waste incineration step is executed on a solid-phase material obtained after solid-liquid separation of kitchen waste, such that the solid-phase material of the kitchen waste is incinerated together with household waste to generate electricity; and an oil-water mixed liquid obtained after the solid-liquid separation of the kitchen waste is selectively mixed with sludge, thereby effectively controlling the heat value and the fluidity of a sludge mixture, and ensuring that the sludge is successfully dried and incinerated. The heat value of sludge is increased, such that the usage amount of natural gas for sludge drying and incineration can be reduced, thereby achieving an energy-saving effect; moreover, the problem of leachate membrane clogging caused by mixed fermentation grease of kitchen waste and household waste is solved; in addition, a water phase obtained after grease is separated from kitchen waste by means of liquid-phase separation has good biodegradability, thereby facilitating the cooperative treatment of same and leachate of household waste. An oil-water mixed liquid separated from kitchen waste by means of a solid-liquid separation apparatus is removed through drying and combustion after being mixed with sludge, without the need for an anaerobic fermentation treatment, thereby effectively saving water resources.

IPC Classes  ?

• C02F 11/18 - Treatment of sludgeDevices therefor by thermal conditioning
• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals

Abstract

The present invention proposes a method for manufacturing a stainless steel floor of a discharge chamber of a garbage transfer station, comprising stainless steel floor tiles and a stainless steel floor formed by tiling of the stainless steel floor tiles one by one, the stainless steel floor tile being of a square structure and having a stainless steel plate outside and being poured with concrete inside, the stainless steel floor tile being externally provided with a stainless steel panel and four stainless steel vertical panels, an anti-shear support plate being further provided inside the stainless steel floor tile, the stainless steel floor tile being internally provided with a reinforcing rib mesh, and the stainless steel floor tile panels being tiled and laid upward one by one to form the stainless steel floor on a reinforced concrete foundation, and the stainless steel floor further comprising intercepting ditches provided around same; characterized by further comprising a sealing leak-proof step performed one layer by one layer from bottom to top for joints formed when the stainless steel floor tiles are tiled one by one. After the sealing leak-proof treatment layer by layer, waste sewage can be effectively prevented from permeating into the foundation below the stainless steel floor tiles, avoiding contamination. The sealing glue at the upper layer can be replaced in time, being easy to maintain, and being able to effectively solve the problems in the prior art.

IPC Classes  ?

• E04F 15/06 - Flooring or floor layers composed of a number of similar elements of metal, whether or not in combination with other material
• E01C 5/16 - Pavings made of prefabricated single units made of metallic units
• E01C 11/02 - Arrangement or construction of jointsMethods of making jointsPacking for joints

Abstract

A sandblasting ash removal method for a heating surface of a waste heat boiler in a waste incineration power plant, comprising the following steps: step 1, configure a sandblasting machine; step 2, operators are in place; step 3, operation preparation; step 4, sandblasting operation; step 5, shut down the sandblasting machine. The method is characterized in that: in step 4, sandblasting advances gradually according to a flue gas flow direction, and step 4 further comprises a step of adjusting the negative pressure at the tail of the waste heat boiler to ensure that smoke and dust flow to the tail of a flue. The ash removal efficiency is further improved, the working environment of operators is improved, and the operation safety is enhanced.

IPC Classes  ?

• F23J 3/02 - Cleaning furnace tubesCleaning flues or chimneys

Abstract

Provided is an automatic cooling control system for a fire grate gap of a garbage incinerator. A front fan is arranged at the front end of the fire grate gap; a rear fan is arranged at the rear end of the fire grate gap; several monitoring points are arranged in a fire grate gap passageway at intervals; a high-pressure water spraying and atomization nozzle is arranged at each monitoring point; correspondingly, a set of monitoring devices is arranged for each monitoring point; each set of monitoring devices is composed of a temperature detector and a smoke sensor; the high-pressure water spraying and atomization nozzle is connected to an external high-pressure water source by means of a pipeline; an electromagnetic valve is further provided; the temperature detector and the smoke sensor transmit signals to the electromagnetic valve separately; and the electromagnetic valve controls a high-pressure water pipeline to be closed or opened. In addition, a system delayer is further provided, the temperature detector and the smoke sensor transmit signals to the delayer separately, and the system delayer controls the operation of the front fan and the rear fan. By means of the control system, water is sprayed to the monitoring point by means of the high-pressure water spraying and atomization nozzle and diversion is carried out by the front fan and the rear fan, such that the temperature of the fire grate may be rapidly reduced.

IPC Classes  ?

• F23H 1/00 - Grates with solid bars
• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories
• G08B 17/06 - Electric actuation of the alarm, e.g. using a thermally-operated switch
• G08B 17/10 - Actuation by presence of smoke or gases
• A62C 31/02 - Nozzles specially adapted for fire-extinguishing
• A62C 37/00 - Control of fire-fighting equipment

Abstract

A dust removal device for a dust bag, comprising a dust bag (1), a base (2), a power mechanism (3), a brushing mechanism (4), and a collecting mechanism (5). The base (2) is of a cylindrical structure, a central shaft hole (21) is provided at the central position of the base (2), a clamping groove (24) is provided on the outer side of the base (2), and the base (2) is further provided with several dust drop holes (22) arranged in a circle. The mouth of the dust bag (1) is sleeved and fixed on the base (2) by means of the clamping groove (24) of the base, and left bristles (43A) and right bristles (43B) of the brushing mechanism (4) separately contact the inner wall of the dust bag (1). The power mechanism (3) drives the brushing mechanism (4) to rotate, the left bristles (43A) and right bristles (43B) of the brushing mechanism (4) brushes off dust on the inner wall of the dust bag (1), and the dust falls into the dust drop holes (22) and finally enters a control valve (52) from a lower pipe opening (51C) of a collecting pipe (51) to be discharged.

IPC Classes  ?

• B01D 46/04 - Cleaning filters

Abstract

An external reheating-type refuse incineration boiler, comprising an incinerator (1) and a waste heat boiler, the waste heat boiler being composed of a steam drum (5), a reheater (6), three vertical membrane-type water walls (2), a convection horizontal flue (1.32) and a coal economizer tube box (4) which is arranged at the tail in a U shape; the convection horizontal flue has a first medium temperature superheater (3.1), a high temperature superheater (3.2), a second medium temperature superheater (3.3), a first low temperature superheater (3.4) and a second low temperature superheater (3.5) arranged in sequence; the steam drum, vertical membrane-type water walls and convection horizontal flue of the waste heat boiler as well as the superheaters in the waste heat boiler are all installed and fixed using suspension devices; and the reheater employs a partition-type structure, having saturated steam inside a tube, and reheated steam outside the tube. The reheater is of a type that is arranged outside a flue, and the reheater is hung on the upper portion of the flue using a hanging device. The incineration boiler increases the steam parameter, increases the steam working capacity, and prevents the safety problems of high temperature corrosion and the like that are due to the arrangement of the reheater in the flue.

IPC Classes  ?

• F23G 5/46 - Recuperation of heat
• F22B 1/18 - Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
• F22G 3/00 - Steam superheaters characterised by constructional featuresDetails or component parts thereof

Abstract

A cleaning apparatus for a dust removal bag comprising a dust removal box. A funnel is provided at the bottom of the dust removal box. A dust discharging pipe is connected to a lower end of the funnel. A rotary mechanism is provided in the dust removal box. A dust removal bag is fixed on the rotary mechanism. The cleaning apparatus for a dust removal bag further comprises a transmission mechanism, a dust collection box, and a cleaning box. A transmission bevel gear of the transmission mechanism meshes with a bevel gear of the rotary mechanism. The transmission mechanism drives the rotary mechanism to rotate. Multiple dust removal blocks are further distributed on an inner wall of the dust removal box. The surfaces of the dust removal blocks are smooth. When the dust removal bag rotates, the dust removal bag continuously collides with the dust removal blocks so as to cause dust on the dust removal bag to fall into the funnel, and then the dust falls into the dust collection box by means of the dust discharging pipe. After dust removal has been completed, the dust removal bag is placed into the cleaning box and undergoes cleaning. The cleaning apparatus for dust removal bag provided by the present invention effectively resolves existing technical issues.

IPC Classes  ?

• B01D 46/04 - Cleaning filters
• B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
• B01D 46/00 - Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
• B01D 46/42 - Auxiliary equipment or operation thereof

Abstract

A waste incinerator flue gas dry deacidification treatment system, consisting sequentially of a semi-dry reaction tower, a baghouse filter, a flue gas/flue gas heat exchanger, a steam/flue gas heat exchanger, an SCR reactor, an induced draft fan, and a chimney according to the direction in which flue gas flows. An activated carbon flue injection apparatus is provided before the baghouse filter. Steam is introduced for heating before the steam/flue gas heat exchanger and condensed water generated is drained away. Ammonia is introduced before the SCR reactor. A sodium bicarbonate dry reactor is provided before the baghouse filter. Also, a sodium bicarbonate flue injection apparatus is provided before the activated carbon flue injection apparatus.

IPC Classes  ?

• B01D 53/80 - Semi-solid phase processes, i.e. by using slurries
• B01D 53/78 - Liquid phase processes with gas-liquid contact
• B01D 46/02 - Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
• B01D 53/40 - Acidic components
• B01D 53/86 - Catalytic processes
• B01D 53/56 - Nitrogen oxides
• B01D 53/75 - Multi-step processes

Abstract

An electrical line contactor with a protective cover plate, the present invention provides the protective cover plate, a hinge is used to connect the protective cover plate with a housing of the electrical line contactor and a connection point is disposed on an upper portion, the protective cover plate is flipped to open and close through the hinge, both sides of the housing of the electrical line contactor are further provided with heat dissipation holes, heat dissipation fins are arranged on an inner wall of the housing of the electrical line contactor inside the heat dissipation holes, a heat-conducting silica gel is coated on outer sides of the heat dissipation fins, which can effectively prevent an operator from accidentally touching a charged body, and ensure the safe operation; meanwhile, due to the fact that the heat dissipation fins are arranged and coated with the heat-conducting silica gel on the outer sides of the heat dissipation fins, heat is dissipated through the heat dissipation holes, so as to ensure the safe use of the electrical line contactor.

IPC Classes  ?

• H01H 50/02 - BasesCasingsCovers
• H01H 50/12 - VentilatingCoolingHeating

Abstract

A side wall fire grating of a garbage incinerator. The side wall fire grating is formed of a mounting assembly (4), a fixed base (2), and a cover plate (1). Slide slots (2.1a; 2.1b) are provided on the fixed base (2) and correspond to slide columns (1.1a; 1.1b) provided on the cover plate (1). The fixed base (2) is inserted in and fixed to the cover plate (1) by means of engagement between the slide slots (2.1a; 2.1b) and the slide columns (1.1a; 1.1b). The engagement between the slide slots (2.1a; 2.1b) and the slide columns (1.1a; 1.1b) has a compensation gap. A high temperature resistance spring (6) is further provided between the cover plate (1) and an abutting face (2.2a) of the fixed base (2). A pressing force of a primary airflow acts on an outer side surface of the cover plate (1), and a pressing force of the high temperature resistance spring (6) acts on an inner side surface of the cover plate (1), such that two forces act in opposite directions. Therefore, a gap between the outer side surface (1.2b) of the cover plate (1) and a fire grate (5) inside a hearth changes with a change of the the pressing force of the primary airflow. The side wall fire grate segment of the garbage incinerator changes flow distribution of the primary airflow in a hearth by adjusting the pressing force of the primary airflow, thereby improving the effectiveness of a garbage incinerator.

IPC Classes  ?

• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories

Abstract

A system for increasing the steam temperature of a waste incinerator by utilizing a leachate marsh gas, comprising a leachate treatment device (1), a marsh gas purification device (2), a gas furnace (3), a waste incineration exhaust heat furnace (4), a heat exchanger (5), an air preheater (6), a steam turbine generator (7), and a steam-air preheater (8). By heating the superheated steam of the waste incinerator using the high temperature flue gas generated by the marsh gas incineration, the marsh gas generated by the leachate is utilized reasonably, the local high temperature caused by the incineration of the marsh gas into the furnace is avoided, the occurrence of high-temperature corrosion is avoided, and the steam parameter of a waste incineration power plant is improved. By heating the primary air using the exhaust heat of the high temperature flue gas generated by the marsh gas incineration, the problem of low-temperature corrosion of the air preheater (6) is avoided, the amount of air drawn to heat the primary air by the waste incineration exhaust heat furnace (4) is saved, and the amount of steam for power generation is increased.

IPC Classes  ?

• F23G 5/46 - Recuperation of heat
• F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals

Abstract

An electric heat tracing system of a fly ash storage tank (1) for domestic waste incineration, comprising the fly ash storage tank (1) and a heating device provided on an outer wall of the tank. An upper portion of the fly ash storage tank (1) is of a cylindrical structure (2), and a lower portion thereof is of a funnel structure (3). The heating device is composed of heating blocks (4) arranged in close attached to and fixed on the outer wall of the tank and having an independent heating function, the heating blocks (4) each having a heating face and the heating face being closely attached to the outer wall of the tank. The outer wall of the fly ash storage tank (1) is further provided with a temperature measuring element (5), and an electrical cable branch box and a temperature control cabinet are provided on the outer wall of the fly ash storage tank (1). The temperature control cabinet controls the heating blocks (4) by means of the electrical cable branch box, solving the problem in the prior art that a heating jacket needs to be replaced as a whole.

IPC Classes  ?

• F23G 5/08 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including supplementary heating
• F23J 15/08 - Arrangements of devices for treating smoke or fumes of heaters
• B65D 88/74 - Large containers having means for heating, cooling, aerating or other conditioning of contents

Abstract

An overturning fire grate segment of an integrated garbage incinerator provided with a bead welding layer, comprising a fire grate segment body (1), wherein the fire grate segment body (1) consists of an upper end plate (1.1) and a right side plate (1.2); the upper end plate (1.1) and the right side plate (1.2) form a bending structure; a folding groove (1.3) is formed in a connecting part between the upper end plate (1.1) and the right side plate (1.2); a mounting hole is longitudinally formed in the left end of the fire grate segment body (1); and a plurality of ventilation holes (1.4) are symmetrically formed in an upper end surface (1.1A) of the upper end plate (1.1). The upper end surface (1.1A) and a right side surface (1.2A) of the fire grate segment body (1) are covered with coatings by means of bead welding; and the coatings are formed in a manner that longitudinal strip-type welding beads are overlapped in the horizontal direction one by one. The fire grate segment is low in machining cost, and the usage cycle of the fire grate segment may be further prolonged.

IPC Classes  ?

• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories
• F23H 1/02 - Grates with solid bars having provision for air supply or air preheating, e.g. air-supply or blast fittings which form part of the grate structure or serve as supports

Abstract

A slag crushing apparatus for power plant boiler dry slag, comprising a rack (4) and a crushing bin driven by a motor, wherein the crushing bin comprises a coarse crushing bin (3) and a fine crushing bin (10); a feeding hopper (2) is provided on an upper portion of the coarse crushing bin (3); dry slag enters the coarse crushing bin (3) from the feeding hopper (2); a coarse filter screen (19) is mounted at a joint of the coarse crushing bin (3) and the fine crushing bin (10); a discharging hopper (11) is provided at the bottom of the fine crushing bin (10); the fine crushing bin (10) is communicated with the discharging hopper (11), and a fine filter screen (20) is further provided between the fine crushing bin (10) and the discharging hopper (11). The dry slag enters the coarse crushing bin (3) from the feeding hopper (2) to be subjected to first-stage crushing firstly; slag powder having a large particle size is formed after primary crushing; the slag powder enters the fine crushing bin after being filtered by the coarse filter screen (19) to be subjected to second-stage crushing, then slag powder having a smaller particle size is formed; and finally the slag powder is discharged from the discharging hopper (11) after being filtered by the fine filter screen (20).

IPC Classes  ?

• B02C 13/04 - Disintegrating by mills having rotary beater elements with horizontal rotor shaft with beaters hinged to the rotorHammer mills
• B02C 13/13 - Disintegrating by mills having rotary beater elements with horizontal rotor shaft and combined with sifting devices, e.g. for making powdered fuel
• B02C 18/14 - Disintegrating by knives or other cutting or tearing members which chop material into fragmentsMincing machines or similar apparatus using worms or the like with rotating knives within horizontal containers
• B02C 18/18 - KnivesMountings thereof
• B02C 18/24 - Drives

Abstract

A small-sized garbage disposal apparatus, comprising a pyrolysis gasification furnace (1), a secondary combustion chamber (2), an air preheater (3), a semi-dry desulfurization system (4), an activated carbon injection system (5), a bag-type dust collector (6), a garbage pushing rod (8), and a drying box (7). Air enters the air preheater from an inlet (3.1) of the air preheater, and after being heated, the air passes through an air outlet (3.2) of the air preheater and enters the secondary combustion chamber from an air inlet (2.2) of the secondary combustion chamber through a pipeline; one part of high-temperature flue gas of the secondary combustion chamber passes through a high-temperature flue gas outlet (2.3) and enters the pyrolysis gasification furnace from a high-temperature flue gas inlet (1.2) of the pyrolysis gasification furnace through a pipeline, and then enters the drying box through a high-temperature flue gas inlet (7.2) of the drying box to dry garbage; and the other part of high-temperature flue gas of the secondary combustion chamber enters the air preheater from the high-temperature flue gas outlet (2.3) through a pipeline to heat the air, and then the high-temperature flue gas is sequentially treated by the semi-dry desulfurization system, the activated carbon injection system, the bag-type dust collector and the like and then discharged. Because no air is fed into the pyrolysis gasification furnace and generated combustible gas does not contain nitrogen gas, the combustion effect of the secondary combustion chamber is optimized. Moreover, the pyrolysis gasification furnace, the drying box, and the air preheater utilize heat of the flue gas together, and therefore the heat of the flue gas is fully utilized.

IPC Classes  ?

• F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying

Abstract

A high parameter steam drum intermediate reheating system for waste incineration power generation. An intermediate reheater (9) is further provided in a steam drum (8); steam generated by a boiler (1) first enters a high pressure cylinder (3.1) of a steam turbine; the steam drives the high pressure cylinder to work and enables a generator (4) to generate electricity; the steam from the high pressure cylinder (3.1) of the steam turbine enters the intermediate reheater (9) for reheating, and then enters a low pressure cylinder (3.2) of the steam turbine and drives the low pressure cylinder to work and enables the generator (4) to generate electricity. The saturated steam in the steam drum (8) is used in the intermediate reheater (9) for reheating the steam after working in the high pressure cylinder (3.1) of the steam turbine, then returning to the low pressure cylinder (3.2) of the steam turbine to continue to expand and work, so that the cycle thermal efficiency and power generation efficiency are improved. Because the steam drum (8) has certain buffering capability for the loading change of the boiler (1), the steam temperature in the steam drum (8) changes relatively little, so that the steam temperature of the intermediate reheater (9) changes smoothly and the range of temperature regulation is small, which creates convenience for the intermediate reheater (9) to regulate temperature. In addition, the steam intermediate reheating process may reduce the exhaust humidity of the low pressure steam turbine, the working conditions of last stage blades of the steam turbine are improved, and the service life of the steam turbine is prolonged.

IPC Classes  ?

• F01K 17/02 - Use of steam or condensate extracted or exhausted from steam engine plant for heating purposes, e.g. industrial, domestic
• F01K 21/00 - Steam engine plants not otherwise provided for
• F01K 13/00 - General layout or general methods of operation, of complete steam engine plants

Abstract

A spray gun control method for SNCR denitration in a furnace of a waste incineration power plant, comprising a control system, a flue gas analysis system, and a temperature measurement system. The temperature measurement system comprises a temperature measurement device provided inside the top portion of a flue of an incinerator and a high temperature measurement device provided in a high-temperature area in the furnace. According to a linear relationship between the elevation and the temperature, the elevation of an optimal reaction area is calculated by measuring the temperature inside the top portion of the flue and the temperature in the high-temperature area in the furnace, so as to eject a reducing agent in the optimal reaction area. After a time gap, when working conditions change, the temperature inside the top portion of the flue and the temperature in the high-temperature area in the furnace change, and the system re-calculates the new elevation of the optimal reaction area and ensures that the reducing agent is ejected in the new optimal area, so that the mixing effect of the reducing agent and flue gas is improved, thereby improving the denitration efficiency, reducing ammonia slip, and saving operating costs.

IPC Classes  ?

• B01D 53/78 - Liquid phase processes with gas-liquid contact
• B01D 53/79 - Injecting reactants
• B01D 53/56 - Nitrogen oxides

Abstract

A spray reduction system for SNCR denitration in a furnace of a waste incineration power plant, comprising a demineralized water supply system, a reducing agent supply system, a cooling system, a control system, and spray guns (2.1, 2.2, 2.3). Under the control of the control system, demineralized water enters a mixing and distribution system from a demineralized water storage tank and a demineralized water transfer pump in said order, and then enters the spray guns (2.1, 2.2, 2.3); a reducing agent enters the mixing and distribution system from a reducing agent storage tank and a reducing agent transfer pump in said order, and then enters the spray guns (2.1, 2.2, 2.3); the cooling system cools the spray guns; the spray guns (2.1, 2.2, 2.3) are installed vertically at a top part (1.21B) of a furnace, and spray heads of the spray guns (2.1, 2.2, 2.3) extend from the top part (1.21B) of the furnace into a flue of a furnace cavity (1.1), and the spray heads of the spray guns (2.1, 2.2, 2.3) spray liquid at 360° on a horizontal plane around the flue in the furnace. According to the fluctuation of working conditions in the furnace, the spray guns (2.1, 2.2, 2.3) automatically extend and retract under the control of the control system and position the spray liquid in a temperature region for the optimal reduction reaction in the furnace so as to ensure that the SNCR denitration reaction is always at the optimal temperature window.

IPC Classes  ?

• B01D 53/78 - Liquid phase processes with gas-liquid contact
• B01D 53/79 - Injecting reactants
• B01D 53/56 - Nitrogen oxides

Abstract

A fly ash conveying system of a waste incinerator, which from top to bottom successively comprises according to a fly ash conveying direction: an ash collecting hopper (1), a front ash pipe (5.1), a rear ash pipe (5.2), a working ash drop pipe (5.3), a submerged chain conveyor (7) and a submerged slag pool. Fly ash falls into the ash collecting hopper (1), the front ash pipe (5.1), the rear ash pipe (5.2), and the working ash drop pipe (5.3) successively from top to bottom, then enters the submerged chain conveyor (7), and is finally conveyed to the submerged slag pool. A J-shaped valve (10) is disposed at a corner at which the front ash pipe (5.1) and the rear ash pipe (5.2) are connected. A normally open ash pipe valve (8.2) is disposed at a corner at which the rear ash pipe (5.2) and the working ash drop pipe (5.3) are connected. A first air distribution pipe (9.1) is disposed in the J-shaped valve (10), and a second air distribution pipe (9.2) is disposed at a front end of the normally open ash pipe valve (8.2). The first air distribution pipe (9.1) and the second air distribution pipe (9.2) are each provided thereon with several small air outlet holes. Compressed air conveying pipes (12.1, 12.2) connected to the air distribution pipes (9.1, 9.2) are further disposed; and when fly ash accumulates at the corners, compressed air is separately conveyed to the first air distribution pipe (9.1) and the second air distribution pipe (9.2) by means of the compressed air conveying pipes (12.1, 12.2), and is sprayed out from each of the small air outlet holes to blow away the accumulated fly ash, so that the fly ash falls into the ash pipes, thereby achieving the function of ash removal.

IPC Classes  ?

• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories
• F23J 3/00 - Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers

Abstract

An air ash blowing control system for a fly ash conveying pipeline of a waste incinerator, which from top to bottom successively comprises according to a fly ash conveying direction: an ash collecting hopper (1), a front ash pipe (5.1), a rear ash pipe (5.2), a working ash drop pipe (5.3), a submerged chain conveyor (7) and a submerged slag pool.. A J-shaped valve (10) is disposed at a corner at which the front ash pipe (5.1) and the rear ash pipe (5.2) are connected. A normally open ash pipe valve (8.2) is disposed at a corner at which the rear ash pipe (5.2) and the working ash drop pipe (5.3) are connected. A first air distribution pipe (9.1) is disposed in the J-shaped valve (10), and a second air distribution pipe (9.2) is disposed at a front end of the normally open ash pipe valve (8.2). The first air distribution pipe (9.1) and the second air distribution pipe (9.2) are each provided thereon with several small air outlet holes. Compressed air conveying pipes connected to the air distribution pipes are further disposed; and compressed air is separately conveyed to the first air distribution pipe (9.1) and the second air distribution pipe (9.2) by means of the compressed air conveying pipes, thereby blowing away the accumulated fly ash. The compressed air conveying pipes comprise pipelines, and stop valves, solenoid valves and pressure reducing valves of the pipelines that are arranged in order according to the direction of the air flow. Intermittent ash blowing is achieved by intermittently starting and stopping the solenoid valves.

IPC Classes  ?

• F23J 1/00 - Removing ash, clinker, or slag from combustion chambers
• F23J 3/00 - Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories
• F23G 5/50 - Control or safety arrangements

Abstract

A sludge conveying system of a garbage incinerator, comprising a sludge main pipeline (5) and a sludge receiving bin (1), a sludge conveying pump (2), and a sludge conveying pump outlet electric gate valve (3.1) that are sequentially arranged according to a sludge flowing direction; further comprising sub-pipelines (5.1, 5.2) that are behind the sludge conveying pump outlet electric gate valve (3.1), and are respectively connected to the main pipeline (5) to convey sludge to feeding hoppers (8.1, 8.2), wherein the sub-pipelines (5.1, 5.2) are respectively provided with feeding hopper electric gate valves (3.4, 3.5); further comprising a sewage drainage pipeline (5.3), wherein one end of the sewage drainage pipeline (5.3) is connected to the main pipeline (5), and the other end accesses to a leachate stock solution pool, access points of the sewage drainage pipeline (5.3) and the main pipeline (5) are provided behind the sludge conveying pump outlet electric gate valve (3.1) and in front of the access points of the sub-pipeline (5.1) of a first feeding hopper (8.1) and the main pipeline (5), and a sewage drainage electric gate valve (3.2) is provided on the sewage drainage pipeline (5.3); and further additionally providing a leachate washing pipeline (5.4), wherein one end of the washing pipeline (5.4) is connected to a leachate conveying pump outlet (6), and the other end is connected to a main pipeline end (5A), and a washing pipeline electric gate valve (3.3) is provided on the washing pipeline (5.4).

IPC Classes  ?

• F23G 7/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals
• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories

Abstract

A turnover machine for overhauling bearings, comprising a rack (1). The bottom of the rack (1) is provided with wheels (2). The rack (1) is further provided with a first turnover plate (3) and a second turnover plate (4) separately. One end of the first turnover plate (3) and one end of the second turnover plate (4) are both hingedly connected to the rack (1) by means of pin shafts (5.1, 5.2). A first turnover cylinder (601) and a second turnover cylinder (6.2A) are further provided inside the rack (1). The bottom of the other end of the first turnover plate (3) is hingedly connected to an end of a piston rod in the first turnover cylinder (6.1A), and the bottom of the other end of the second turnover plate (4) is hingedly connected to an end of a piston rod in the second turnover cylinder (6.2A). The rack (1) is further provided with conveying rollers (7, 8). The back of the second turnover plate (4) is provided with a support frame (9). A clamping cylinder (10) is provided in the support frame (9). A chuck (11) is further provided in the second turnover plate (4). An end of a piston rod in the clamping cylinder (10) is fixedly connected to the back of the chuck (11), and the front of the chuck (11) is provided a claw (12) and further provided with a guide rail (18). Two sides of the back of the claw (12) are slidably connected to the guide rail (18), and the back is further provided with a lead screw (15). The middle of the back of the claw (12) is fixedly connected to a nut seat sleeved on the lead screw (15). The turnover machine has a variety of turnover angles, can meet the processing requirements of different processes of bearings, can more conveniently and stably fix the bearings, and is less likely to scratch the surfaces of the bearings.

IPC Classes  ?

• B65G 47/248 - Devices influencing the relative position or the attitude of articles during transit by conveyors orientating the articles by turning over or inverting them
• B25H 1/08 - Work benchesPortable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders

Abstract

A purge gas supply system for a power plant flue gas continuous emission monitoring system comprises a nitrogen generator system and a bottled nitrogen supply system. The bottled nitrogen supply system serves as a backup gas source for the nitrogen generator system. The nitrogen generator system comprises an air compressor system, a compressed air supply system, a PSA nitrogen generator (21), a nitrogen purification system and a nitrogen supply pipeline system. The bottled nitrogen supply system comprises a bottled nitrogen station (31), a gas supply pipeline nitrogen pressure transmitter primary valve (35), a gas supply pipeline nitrogen pressure transmitter (36), and a CEMS instrument purge gas inlet valve (37). The purge gas supply system prevents interruption of purge gas supply, and can continuously supply high quality purge gas to an analyzer, thereby ensuring that a lens of the analyzer is clean and dry, and accordingly ensuring that the analyzer accurately and stably monitors data.

IPC Classes  ?

• G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups

Abstract

A ventilation device for storage, comprising: a ventilating pipeline (18) mounted inside a storage wall body (1), a fan (8) mounted inside the ventilating pipeline (18), an air outlet cover plate (2) mounted at an outlet end of the ventilating pipeline (18), a first air filter screen (3) mounted inside the air outlet cover plate (2), an air inlet cover plate (16) mounted at an inlet end of the ventilating pipeline (18), a second air filter screen (17) mounted inside the air inlet cover plate (16), and an electric heating coil (20) mounted between the fan (8) and the outlet end. The ventilation device also comprises a mounting plate (13) mounted on the surface of the wall body (1) on one side of the ventilating pipeline (18) and a PLC controller (10) and a temperature and humidity sensor (6) which are mounted on the mounting plate (13). The present ventilation device may change a ventilation effect along with a change in temperature and humidity.

IPC Classes  ?

• F24F 7/08 - Ventilation with ducting systems with forced air circulation, e.g. by fan with separate ducts for supplied and exhausted air

Abstract

A two-valve control device for a water supplementing valve of a wet-type slag discharger in a power plant comprises a control box, a first water supplementing solenoid valve, and a second water supplementing solenoid valve. A first water supplementing solenoid valve main circuit, a second water supplementing solenoid valve main circuit, a first water supplementing solenoid valve control circuit, and a second water supplementing solenoid valve control circuit are mounted on the control box. The control circuits are used to control the two solenoid valves, and each of the solenoid valves is controlled by multiple water level signals. In the invention, the number of solenoid valves that need to be activated is controlled according to a water level of the slag discharger, thereby effectively resolving the issue of non-timely or excessive water supplementation resulting from impurities, scum, and mud in the water reducing accuracy of water level measurement performed by a float valve and a radar water level gauge, and eliminating situtations impacting the safety of devices and personnel, such as when a failure of water supplementation causes the slag discharger to be short of water, resulting in a lack of negative pressure in a furnace and excessive cold air entering the furnace, causing a heating surface to be coked and a flue gas environmental protection index to exceed standards, and ultimately causing a tube panel to burst.

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet

Abstract

A two-valve control circuit of a water replenishing valve of a wet type slag extractor of a power plant, comprising a No.1 water replenishing solenoid valve main circuit, a No.2 water replenishing solenoid valve main circuit, a No.1 water replenishing solenoid valve control loop and a No.2 water replenishing solenoid valve control loop. Two sets of solenoid valves are controlled by means of the control loops, and each solenoid valve is controlled by multiple water level signals. When the water levels of the slag extractor are different, the number of started solenoid valves is different, and the number of solenoid valves which need to be started may be controlled according to the water levels of the slag extractor, thereby effectively solving the problem of a ball float valve and a radar water level gauge having an inaccurate water level measurement and delayed or excessive water replenishing due to impurities, scum, mud and other elements contained in water, and avoiding problems such as: when a slag extractor lacks water due to a water replenishing problem, a furnace loses negative pressure, the opening of an induced draft fan is increased, a large amount of cold air enters the furnace and affects combustion in the furnace, and excessive cold air enters the furnace and causes the coking of a heating surface and the overproof of environmental protection parameters of flue gas, thereby causing a tube panel to burst, and a series of problems having a serious impact on the safety of equipment and people.

IPC Classes  ?

• F16K 31/06 - Operating meansReleasing devices electricOperating meansReleasing devices magnetic using a magnet
• F23J 1/06 - Mechanically-operated devices, e.g. clinker pushers

Abstract

A tubular product lifting appliance, comprising a mounting base (1). Lifting rods (2) are fixedly provided on the periphery of the top of the mounting base; a telescopic air cylinder (3) is fixedly provided at the center of the top of the mounting base; an end part of a piston rod in the telescopic air cylinder penetrates through the mounting base to be fixedly connected to one end of a connecting rod (4), and the other end of the connecting rod is fixedly provided with a vacuum chuck (5); the vacuum chuck absorbs a tubular product (12); a first guide rail (6) is fixedly provided at the bottom of the mounting base; a first electric sliding block (7) is slidably provided in the first guide rail; the bottom of the first electric sliding block is fixedly connected to one end of a first L-shaped supporting plate (8), and the other end of the first L-shaped supporting plate is slidably connected to the other end of a second L-shaped supporting plate (10) by means of matching of a sliding groove (9) and a sliding rail (11). The tubular product lifting appliance is provided with the vacuum chuck, the first L-shaped supporting plate, the second L-shaped supporting plate, and a pressing block (16), thereby solving the problem that the conventional tubular product lifting appliance is low in safety and not easy to lift.

IPC Classes  ?

• B66C 1/02 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by suction means
• B66C 1/16 - Slings with load-engaging platforms or frameworks

Abstract

2121 amount of the flue gases, calculating the temperature T of the flue gas of the front furnace chamber (1.5A) in which combustible components have been fully combusted and the temperature of a mixed flue gas, and controlling the combustion of bed garbage to be delayed or advanced so as to achieve the purpose of suppressing and reducing NOx formation.

IPC Classes  ?

• F23G 5/04 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment drying
• F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories

Abstract

A water pump mounting base, comprising a base (1), wherein said base (1) is composed of side plates (1A, 1B) and end plates (1.2); the side plates (1A, 1B) are disposed at two sides, and the end plates (1.2) are disposed at two ends; the side plates (1A, 1B) and the end plates (1.2) constitute a frame structure; support legs (1.3) are disposed at a lower portion of the base (1); the side plates (1A, 1B) at two sides of the base (1) are respectively mounted with L-shaped mounting plates (2), are further provided with first sliding assemblies (3.1), and are further provided with a carrying plate (4); the carrying plate (4) is disposed on the first sliding assemblies (3.1) and moves horizontally along sliding rails (3.1A); a support platform (4.1) is further disposed at an upper surface of the carrying plate (4); long sides of the L-shaped mounting plates (2) are further mounted with second sliding assemblies (3.2), and are further provided with pressing blocks (5); the pressing blocks (5) are disposed at upper side positions of the carrying plate (4); the pressing blocks (5) are mounted on sliders (3.2B) of the second sliding assemblies (3.2) and move up and down along sliding rails (3.2A); and when in use, a water pump is placed on the support platform (4.1), the pressing blocks (5) are moved down until pressing the water pump, and then the pressing blocks (5) are locked and fixed by means of bolts (6.2). The present solution facilitates the mounting and dismounting of a water pump, and may effectively solve the problem in which the mounting and dismounting of existing water pumps is inconvenient.

IPC Classes  ?

• F16M 5/00 - Engine beds, i.e. means for supporting engines or machines on foundations

Abstract

An odor-resistant sealing device of a centrifugal fan of a waste incineration power plant, comprising a motor (1), a bearing box (2), a rotation shaft (2.1), impellers, an impeller chamber (3), a base (5), an air suction port (4), and an air discharge port; the bearing box (2), the impeller chamber (3), and the motor (1) are installed and fixed on the base (5), the motor (1) drives the impellers to rotate by means of the rotation shaft (2.1), air enters the impeller chamber (3) from the air inlet (4) and is then discharged from the air discharge port; a sealing protective sleeve (7) is disposed between the impeller chamber (3) and the bearing box (2), an end of the sealing protective sleeve (7) being sealedly fixed to the impeller chamber (3), while the other end is sealedly fixed to a housing of the bearing box (2); the sealing protective sleeve (7) is a cylindrical structure and sleeves the exterior of the rotation shaft (2.1), and a rotation gap is provided between an inner wall of the sealing protective sleeve (7) and the rotation shaft (2.1). While the centrifugal fan is operating, odor is effectively prevented from leaking into an office area and environmental sanitation is ensured.

IPC Classes  ?

• F04D 17/10 - Centrifugal pumps for compressing or evacuating
• F04D 29/24 - Vanes

Abstract

A garbage incinerator side wall grate, which is a composite structure composed of a cover body (1) and a fixed seat (2); the fixed seat (2) is mounted and fixed on a furnace side wall (3) by means of a fastener; the cover body (1) is detachably mounted on the fixed seat (2), and when wear failure happens in the cover body (1), overall replacement is not needed, but the cover body (1) of the grate is only required to be replaced. Therefore, the grate is convenient to maintain, which not only saves operating cost, but also improves working efficiency.

IPC Classes  ?

• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories

Abstract

Disclosed is a steam reheating system for a rubbish incineration furnace, the steam reheating system mainly comprising a grate (1.2), a furnace chamber (1.5), a flue (2) and a heated device (3). The flue successively comprises a first vertical flue (2.21), a second vertical flue (2.22), a third vertical flue (2.23) and a horizontal flue (2.2). The heated device comprises a first-stage evaporator (3.1), a third-stage superheater (3.2), a second-stage superheater (3.3), a first-stage superheater (3.4), a second-stage evaporator (3.5) and an economiser set (3.6). A high-temperature reheater (3.71) and a low-temperature reheater (3.72) are additionally provided, wherein the high-temperature reheater (3.71) and the low-temperature reheater (3.72) are disposed separately, and the high-temperature reheater (3.71) is provided in the horizontal flue (2.2) and located after the third-stage superheater (3.2) and before the second-stage superheater (3.3), improving the flue gas environment at the high-temperature reheater (3.71) to reduce high-temperature corrosion; and the low-temperature reheater (3.72) is provided in the third vertical flue (2.23), reducing the total length of the furnace. This not only ensures that residual heat can raise the steam temperature of the furnace to 450-480℃ and the reheated steam temperature to 400-450℃, but can also improve the safety and reliability of the reheater and the heat-exchange efficiency of the furnace, without needing to add an excessive superheater area, thus reducing the investment costs and area occupied by the furnace.

IPC Classes  ?

• F22G 7/12 - Steam superheaters characterised by location, arrangement, or disposition in flues
• F23G 5/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels

Abstract

In order to solve the problem on the difficulty of forming a standardized incinerator automated control system due to a low degree of automation of an existing waste incineration for electricity generation system and uneven distribution of material layers and flame center deflection found during waste incineration that cause fluctuations in the load of a furnace and affects the stability of an emission indicator, provided is a control method for use in a tilting multilevel forward-pushing waste incinerator, comprising: the distribution of a primary air volume on the basis of the flow rate of steam, the pressure of a steam drum, and the temperature of a drying section grate; the control of a continuous motion of a feeder grate on the basis of the differential pressure of a material layer of the incinerator; the control of a continuous motion of an incineration grate on the basis of the calorific value of the waste and the flow rate of the steam, and the interlocked control of the motion of the incineration grate via the pressure of the steam drum; the control of air supply volumes on either side on the basis of the temperature of the grates; and the control of the distribution of a secondary air volume on the basis of the volume of oxygen and CO (carbon monoxide) at a furnace outlet.

IPC Classes  ?

• F23G 5/50 - Control or safety arrangements

Abstract

A regenerative sludge heat drying system, mainly comprising a sludge pump (1), a sludge inlet pipe (2.11), a surface type drying machine (2), a high-temperature saturated steam pipeline (2.21), a high-temperature condensate tube (2.22), a drain flash tank (5), a sludge outlet pipe (2.12), a drying machine evaporated exhaust steam drainage header pipeline (3.11), a non-condensable gas drainage pipeline (3.12) and a non-condensable gas fan (4); the non-condensable gas fan (4) is provided on the non-condensable gas drainage pipeline (3.12); high-temperature saturated steam from the high-temperature saturated steam pipeline (2.21) can heat the surface type drying machine (2); wet sludge enters the surface type drying machine (2) from the sludge inlet pipe (2.11), turns into a dried state after being heated and then is drained out from the sludge outlet pipe (2.12); and a surface type heat exchanger (6) is further provided on the sludge inlet pipe (2.11).

IPC Classes  ?

• C02F 11/12 - Treatment of sludgeDevices therefor by de-watering, drying or thickening

Abstract

A waste incineration boiler superheater system. A water-cooled partition screen (1.6) is disposed inside a hearth (1.5). The water-cooled partition screen (1.6) divides the hearth (1.5) laterally into two parts: a front hearth (1.5A) and a rear hearth (1.5B). The flow of flue gas generated in a drying section (1.21) and a pyrolysis section (1.22) of an incineration boiler is restricted to the front hearth (1.5A). The flow of high-temperature post-flue gas generated in a combustion section (1.23) and a burnout section (1.24) is restricted to the rear hearth (1.5B). A tertiary superheater (3.2) is provided in the rear hearth (1.5B) in advance to further raise the heating temperature of the tertiary superheater (3.2). A front secondary superheater (3.3) is also provided in a horizontal flue (2.2), and is disposed before a secondary superheater (3.3), so as to comprehensively increase the efficiency of a boiler without subjecting a high-temperature heating surface of the boiler to severe corrosion.

IPC Classes  ?

• F22G 1/02 - Steam superheating characterised by heating method with heat supply by hot flue gases from the furnace of the steam boiler
• F22G 5/12 - Controlling superheat temperature by attemperating the superheated steam, e.g. by injected water sprays

Abstract

Disclosed is a low-nitrogen combustion garbage incineration furnace. A furnace body (1) mainly comprises a furnace grate, a garbage inlet (1.1), a falling ash opening (1.3) and a hearth (1.5). The furnace grate is divided into four sections, namely a drying section (1.21), a pyrolysis section (1.22), a combustion section (1.23) and a burnout section (1.24). Primary air (1.8A) is input into lower sides of the drying section (1.21), the pyrolysis section (1.22), the combustion section (1.23) and the burnout section (1.24) to play a role in combustion; a water-cooled division panel (1.6) is arranged inside the hearth, and the hearth is divided into two parts, namely a front hearth (1.5A) and a rear hearth (1.5B), in a transverse direction; flue gas generated in the incineration furnace is partitioned into front flue gas (1.4A) and rear flue gas (1.4B), the front flue gas (1.4A) generated in the drying section (1.21) and the pyrolysis section (1.22) is limited to flow in the front hearth (1.5A), and the rear flue gas (1.4B) generated in the combustion section (1.23) and the burnout section (1.24) is limited to flow in the rear hearth (1.5B), so that the rear flue gas (1.4B) at a high temperature is in the hypoxic environment; a water-cooled temperature reducer (1.7) is further arranged in the rear hearth (1.5B) for further decreasing the temperature of the rear flue gas (1.4B) when same passes through the water-cooled temperature reducer (1.7); the front flue gas (1.4A) and the rear flue gas (1.4B) are mixed in the hearth and at an upper portion of the water-cooled division panel (1.6); and secondary air (1.8B) is sprayed into a throat (1.9) of the hearth, such that mixed flue gas formed by mixing the front flue gas (1.4A), the rear flue gas (1.4B) and the secondary air (1.8B) is further combusted to further reduce the formation of harmful substances.

IPC Classes  ?

• F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
• F23G 5/04 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment drying
• F23G 5/44 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels DetailsAccessories
• F23J 15/06 - Arrangements of devices for treating smoke or fumes of coolers

Abstract

An isolating valve having opposing comb fingers for a sludge pipeline. The isolating valve comprises a valve body, a valve rod, a valve plate, and a valve rod control mechanism; the valve plate is mounted on the valve rod; the valve rod is driven to rotate by an external force, and the valve plate is driven to move by the valve rod to open or close the valve; the valve plate is of a structure having opposing comb fingers; a valve sealing device is in the form of multiple low-opening resistance triangular comb fingers (2A1, 2A2, 2A3, 2An, 2B1, 2B2, 2B3, 2Bn) engaged with each other; the valve rod rotates to make the comb fingers of the valve plate engaged with each other or disengaged. The valve rod does not axially move, so as to prevent a medium from being taken out of the valve body, thus preventing odor from escaping. Because a low-opening resistance triangular comb finger structure is adopted for the valve plate, the resistance to open or close the valve is small; moreover, because an inclined pointed surface is used as the sealing surface, alignment and sealing can be automatically performed, and the sealing surface is capable of self-recovering in a case of being worn; thus, the service life of the valve is greatly improved, and the valve manufacturing and repairing costs are reduced.

IPC Classes  ?

• F16K 1/20 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure members with pivoted discs or flaps with axis of rotation arranged externally of valve member

Abstract

A primary air intake device for a waste incinerator comprises an ash discharging hopper (2.1; 2.2; 2.3; 2.4; 2.5) and an air intake pipe (3.1). The air intake pipe (3.1) horizontally extends into the ash discharging hopper (2.1; 2.2; 2.3; 2.4; 2.5). An air ventilation hole (3.1A; 3.1A1) is formed in the pipe body on the lower side of the air intake pipe (3.1) in the horizontal direction, and primary air passes through the air intake pipe (3.1) and then enters the ash discharging hopper (2.1; 2.2; 2.3; 2.4; 2.5) through the air ventilation hole (3.1A; 3.1A1). Because of the remarkable increase of the fullness degree of combustion supporting air in a primary air chamber, burning flames are evenly distributed on the surfaces of grates (1), thereby improving the service life of grate bars, and improving the burnout rate of wastes.

IPC Classes  ?

• F23G 5/00 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels
• F23L 1/02 - Passages or apertures for delivering primary air for combustion by discharging the air below the fire

Abstract

A dust removal device for cyclone-type smoke comprises a housing (1), an ash hopper (2), an air intake pipe (3), and an air discharge pipe (4). A fan (6) is also disposed in the housing (1) and supplies air from the bottom to the top. The air intake pipe (3) is disposed on the lower side of the fan (6). The air discharge pipe (4) is disposed on the upper side of the fan (6). A filtering net (5) is also disposed on the upper side of the air intake pipe (3). Due to the arrangement of the fan (6), the rotational flow effect of smoke in a chamber (1.1) is better and the smoke treatment capability is further improved.

IPC Classes  ?

• B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream

Abstract

Disclosed is a filter device with an inverted filter screen and for a water pump inlet of a garbage incineration power plant. The filter device comprises a filter container (1A) and a filter screen (2) arranged inside the filter container (1A), wherein the filter container (1A) and the filter screen (2) are of a barrel-shaped structure; a water inlet (1A1) of the filter container (1A) is arranged at a lower side, whereas a water outlet (1A2) thereof is arranged at an upper side; a barrel bottom (2B) of the filter screen (2) faces upward, whereas a barrel mouth (2A) thereof faces downward, thereby being in an inverted state, and a ferromagnetic body (3B) is further arranged on the barrel bottom (2B) of the filter screen (2); and an electromagnet (3A) is further arranged on a cover plate (1B) of the filter container (1A). When the electromagnet (3A) is conducted, the ferromagnetic body (3B) is attracted so as to drive the filter screen (2) to move upward, when the electromagnet (3A) is not conducted, the filter screen (2) moves downward under the action of its own gravity, and when the filter screen (2) moves upward and downward, sludge absorbed to the filter screen (2) falls down. The bottom of the filter container (1A) is of a funnel-shaped structure, the bottom of the filter container (1A) is further provided with a sludge discharge pipe (4), the sludge discharge pipe (4) is provided with a valve (4A), and the sludge falling down from the filter screen (2) is discharged via the sludge discharge pipe (4). The filter screen (2) can be cleaned without needing to stop a pump, which not only saves on manpower, but also improves the working efficiency.

IPC Classes  ?

• F04B 53/20 - Filtering
• B01D 35/02 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks

Abstract

A stress-application wrench for a circular turntable valve, comprising handle (1) and upper and lower jaws (1A1, 1B1). The handle is formed by an outer sleeve rod (1A) and an inner sleeve rod (1B) by means of sleeve joint; the inner sleeve rod is stretchable relative to the outer sleeve rod; the upper jaw is fixed on the end portion of the outer sleeve rod; the lower jaw is fixed on an end of the inner sleeve rod; the outer sleeve rod is provided with a sliding groove (1A2); the lower jaw is provided in the sliding groove; the sliding groove limits the lower jaw so that the lower jaw can only slide axially; the lower jaw moves in the sliding groove when the inner sleeve rod moves up and down. During use, the upper and lower jaws clamp a circular turntable of the valve, and the handle is pushed to rotate the turntable so as to open and close the valve.

IPC Classes  ?

• B25B 13/12 - SpannersWrenches with adjustable jaws the jaws being slidable

Abstract

An anti-blocking water supply device for a slag dredger of a waste incineration power plant, comprising: a water tank (1), an internal communication pipeline (2) between the water tank (1) and a slag dredger water sink (8), a water supply pipeline (3), an automatic water supply control unit, and a water supply bypass (4). The automatic water supply control unit consists of a remote liquid level meter (5) disposed on the water tank (1) and an automatic water supply control valve (6) disposed on the water supply pipeline (3). The water supply bypass (4) leads an external water source (14) into the water tank (1), and supplied water (9) of the water tank (1) enters the slag dredger water sink (8) through the internal communication pipeline (2). When the water level of the water tank (1) drops to a set height, the remote liquid level meter (5) sends a signal to the automatic water supply control valve (6); the automatic water supply control valve (6) is opened, and the external water source (14) supplies water to the slag dredger (7) through the water supply pipeline (3). The internal communication pipeline (2) is connected downwardly from high to low to the slag dredger water sink (8) through the water tank (1). In the device, sludge hardly deposits in the pipelines, and the problem of pipeline blockage can be solved effectively.

IPC Classes  ?

• F23J 1/06 - Mechanically-operated devices, e.g. clinker pushers

Abstract

In view of the characteristics of the composition of household waste nationally and the characteristics of incinerator slag, for sampling and sample preparation of household waste incinerator slag, based on relevant domestic and international standards combined with experimental experience, the parameters of loss on ignition analysis and measurement being standardised and applied to an actual waste incineration power plant, provided is a method for testing the loss on ignition of household waste incinerator slag, comprising the following steps: step 1: preparation of instrument equipment; step 2: sampling; step 3: preparing a large sample; step 4: drying; step 5: preparing a small sample; step 6: calcining; and step 7, calculating the loss on ignition of the small sample according to a formula.

IPC Classes  ?

• G01N 31/12 - Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroupsApparatus specially adapted for such methods using combustion

Abstract

Provided is a system for recovering the drain of a power plant to a de-aerator, the system comprising a de-aerator (11) and a desalinated water pipeline inlet system, a condensed water pipeline inlet system and a drain pipeline inlet system which are connected into the de-aerator (11), and further comprising an outlet system from the de-aerator (11) to a water feed pump, characterized in that the drain pipeline inlet system is arranged before a pneumatic regulating valve (6); an outlet of the drain pipeline inlet system is connected behind a desalinated water inlet check valve (3) and before a front check valve (5) of the pneumatic regulating valve; and the flow, when a drain pump and a desalinated water pump supplement water to the de-aerator (11), is required to be automatically controlled by the pneumatic regulating valve (6) and the water level of the de-aerator (11) is required to be maintained in a set range, and both of the drain pump and the desalinated water pump operate in a chained manner, that is, the desalinated water pump is stopped automatically when the drain pump is started, and the desalinated water pump is started automatically when the drain pump is stopped. As water is continuously supplemented to the de-aerator (11), the stability of both the pressure and temperature of the de-aerator (11) can be effectively guaranteed, and normal operation of the system can be guaranteed.

IPC Classes  ?

• F22D 1/50 - Feed-water heaters, e.g. preheaters incorporating thermal de-aeration of feed-water

Abstract

A garbage incinerator furnace wall cooling air collecting system. When drawn by a centrifugal fan, cooling air is transported via a duct to the bottom part of a furnace wall, then flows upwards via the furnace wall and departs from the upper part of the furnace wall; and the cooling air coming out from the upper part of the furnace wall is transported via an air collecting duct to a primary air intake duct. The cooling air collecting system effectively increases the primary air intake temperature, reduces the energy consumed by primary air heating, reduces the load for a furnace cavity induced draft fan, and conserves energy.

IPC Classes  ?

• F23G 5/46 - Recuperation of heat

Abstract

A lime slurry spray system for treating flue gas of a garbage incineration power plant, comprising a clean water conveying pipeline, a lime slurry conveying pipeline, and a compressed air conveying pipeline. An inlet of the clean water conveying pipeline is connected to a clean water tank (1A); an inlet of the lime slurry conveying pipeline is connected to a lime slurry tank (2A); outlets of the clean water conveying pipeline, the lime slurry conveying pipeline, and the compressed air conveying pipeline are respectively connected to corresponding interfaces of a spray gun (3A); the inlet of the clean water conveying pipeline is communicated with the inlet of the lime slurry conveying pipeline by means of a bypass (4); a valve (6) is provided in each pipeline. An acid liquor washing device is also provided; the acid liquor washing device comprises an acid liquor washing pipeline and an acid liquor tank (5A); the acid liquor washing pipeline conveys acid liquor from the acid liquor tank (5A) to a long-distance main slurry path (2.1B) and a long-distance spare slurry path (2.2B) for washing same; then the acid liquor flows back to the acid liquor tank (5A).

IPC Classes  ?

• B01D 53/80 - Semi-solid phase processes, i.e. by using slurries
• B01D 53/50 - Sulfur oxides
• B05B 7/02 - Spray pistolsApparatus for discharge
• C23G 3/04 - Apparatus for cleaning or pickling metallic material for cleaning pipes
• B65G 53/00 - Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam

Abstract

A twin-fluid spray gun for back ejection and combustion of leachate in a waste incineration power plant. A gas path valve switch mechanism and a liquid path valve switch mechanism are also disposed on two sides of a gun body (1). When the gun body (1) moves, the gas path valve switch mechanism and the liquid path valve switch mechanism move together. The gas path valve switch mechanism comprises a gas path rack frame (3A), a gas path rack (4A), and a gas path toothed plate (5A). The liquid path valve switch mechanism comprises a liquid path rack frame (3B), a liquid path rack (4B), and a liquid path toothed plate (5B). When the gun body (1) enters or exits a working position, the gas path valve switch mechanism and the liquid path valve switch mechanism are automatically opened and closed. Compressed air is used as a power source, accordingly, when the leachate sprayer is blocked, the twin-fluid spray gun can automatically exit a furnace chamber, so as to prevent the spray gun and the sprayer from being damaged in the burn, thereby prolonging the service life of the spray gun. In addition, after the twin-fluid spray gun automatically enters or exits to the furnace chamber, a value of a twin-fluid pipe can be automatically opened or closed, thereby furthering improving the safety and the reliability.

IPC Classes  ?

• F23D 11/10 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space the spraying being induced by a gaseous medium, e.g. water vapour
• F23D 11/36 - Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space Details

Abstract

A steam turbine barring crank shaft sealing apparatus, comprising a crank shaft (1), a turbine base (4), shaft holes (4.1, 4.2) on two sides of the turbine base, a hand crank mounting base (3), and a stroke controller mounting base (2), the crank shaft (1) being mounted in the turbine base shaft holes (4.1, 4.2), the hand crank mounting base (3) and the stroke controller mounting base (2) respectively being arranged at the two ends of the crank shaft (1), a hand crank being arranged on the hand crank mounting base (3), rotation of the hand crank rotating the crank shaft (1) to implement electric-powered barring, sealing members also being arranged at positions corresponding to the turbine base shaft holes (4.1, 4.2), and the sealing members having a sealing effect and preventing lubricant from leaking from shaft base gaps. The advantages thereof are preventing lubricant waste, ensuring environmental sanitation, and also preventing the occurrence of safety hazards.

IPC Classes  ?

• F01D 25/36 - Turning or inching gear using electric motors

Abstract

A deodorization room (1) for a garbage pool in a garbage incineration power plant. The deodorization room comprises a first front door (1A) in communication with a garbage pool, and a second front door (1B) in communication with the outside; a first airtight transition room (1.1) is further provided between the first front door (1A) and the garbage pool; the first transition room (1.1) is provided with a first transition door (1.1A) leading to the garbage pool; an automatic door closer is provided so as to achieve automatic closing of the first front door (1A), the second front door (1B), and the first transition room (1.1A); the deodorization room (1) and the first transition room (1.1) are provided with fans (2.1; 2.2; 2.3) exhausting air from the outside to the inside, so that indoor air pressure is maintained in a positive pressure state; an access control system is further provided and has an emergency function. The emergency function is disabled under normal conditions; in the case that the first transition door (1.1A) is closed and the indoor air pressure in the deodorization room (1) reaches first positive pressure, the first front door (1A) can be opened; accordingly, in the case that the first front door (1A) is closed and the indoor air pressure in the first transition door (1.1) reaches second positive pressure, the first transition door (1.1A) can be opened. The present invention can effectively prevent odor in the garbage pool (1) from overflowing, and guarantee that an adjacent external environment is clean and sanitary.

IPC Classes  ?

• E04H 1/12 - Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles

Abstract

A two-pump control device for a sewage pump. The two-pump control device controls two drainage pump units; each drainage pump unit is correspondingly provided with a liquid level switch and different control liquid levels are provided for each liquid level switch; in the case that water in a machine room reaches a first liquid level height, a first unit is operated; in the case that the water in the machine room reaches a second height, the first unit and a second unit are operated at the same time. Three water pumps can further be provided and three liquid level switches are correspondingly provided; in the case that the water reaches a third height, the three water pumps are operated at the same time, and so on. The number of water pumps that need to be started can be automatically controlled according to the water level in the machine room. The present invention can effectively resolve the problem in the prior art that only one water pump unit can be operated, and guarantee that a drainage pump is operated when slight water leakage occurs in a machine room, and multiple drainage pumps can be operated at the same time when serious water leakage occurs in the machine room and the water level is higher.

IPC Classes  ?

• F04B 49/06 - Control using electricity

Abstract

A two-pump control circuit of a sewage pump. The two-pump control circuit controls two sets of drainage pump units; each set of drainage pump unit is correspondingly provided with a liquid level switch and different control liquid levels are set for each liquid level switch; when water in a machine room reaches a first liquid level height, a first unit is put into operation; when the water in the machine room reaches a second height, the first unit and a second unit are simultaneously put into operation. Three sets of water pumps can further be provided and three liquid level switches can be correspondingly provided; when the water reaches a third height, three water pumps simultaneously operate, and so on. The number of water pumps needing to be started can be automatically controlled according to the water level in the machine room. The present invention can effectively resolve the problem in the prior art of only putting one set of water pump units into operation, and ensure that a drainage pump is input into operation when slight water leakage occurs in a machine room, and multiple drainage pumps can be simultaneously put into operation when serious water leakage occurs in the machine room and the water level is higher.

IPC Classes  ?

• F04D 15/00 - Control, e.g. regulation, of pumps, pumping installations, or systems
• F04D 13/12 - Combinations of two or more pumps
• F04B 49/06 - Control using electricity

Abstract

A protective ground anchor (3) for a waste unloading vehicle, the anchor comprising a fixed ground base (3.1) and a holding rope (3.2). The fixed ground base (3.1) is fixed on a ground in front of a front portion of a waste vehicle (2). The holding rope (3.2) connects the fixed ground base (3.1) and a frame of the waste vehicle (2) to hold and secure the waste vehicle (2). The holding rope (3.2) holds and secures the waste vehicle (2) to prevent the vehicle from falling into a waste pit during unloading, thus preventing life or property losses, and ensuring operational safety.

IPC Classes  ?

• B65F 3/26 - Vehicles particularly adapted for collecting refuse with devices for unloading the tank of a refuse vehicle by tipping the tank
• E02D 5/80 - Ground anchors

Abstract

Disclosed is a protective door for a garbage unloading vehicle. The protective door comprises a doorframe (2) and a doorsill (2.0). A top protective bar (2.1) is disposed at a top portion of the doorframe (2). A metal protective plate (2.2) is disposed on the doorsill (2.0). The metal protective plate (2.2) covers an upper surface of the doorsill (2.0). A vehicle parking platform (3) is disposed outside the doorsill (2.0). The parking platform (3) is made from a rectangular metal plate. The parking platform (3) and the doorsill (2.0) form a limit step (2.3). A hopper of a garbage vehicle can be placed into the doorframe (2) during unloading. The doorsill (2.0) functions to limit the vehicle, and the top protective bar acts as a safety limit on the hopper of the vehicle, so as to prevent the vehicle from falling down. The metal protective plate can enhance the strength of the platform, so as to avoid collision damage to the vehicle.

IPC Classes  ?

• B65G 69/22 - Horizontal loading or unloading platforms
• B65G 67/24 - Unloading land vehicles

Abstract

A piston support device for an outlet of a flue gas chamber of waste incineration power plant, providing a tube-like support bushing seat (3) on a piston rod (1) of a piston, the support bushing seat (3) being capable of being opened or closed, the support bushing seat (3) being sleeved, after being opened, on the piston rod (1) and located between a top plate (2.3A) of a flue gas chamber (2) and a piston rod shoulder (1.2), the support bushing seat (3) holding the piston rod (1) upward by means of the shoulder (1.2) to prevent the piston rod (1) from falling down. The piston support device can prevent, in cases where there is a leak in a compressed air main pipe, a solenoid valve fails and a compressed air pipe at the tail portion of a cylinder lifting valve head is broken, the piston core rod from dropping and causing the accidental closure of the flue gas outlet, thereby not influencing the standard procedure of waste incineration.

IPC Classes  ?

• F16K 1/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
• F16K 1/32 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces Details
• B01D 46/42 - Auxiliary equipment or operation thereof

Abstract

The invention provides a non-powered stirring organic waste anaerobic fermentation device. By arranging a T-shaped spacer, an internal chamber of an anaerobic fermentation device is divided into an upper chamber and a lower chamber. The amount of biogas generated therein is different because of a certain volume difference between the upper and lower chambers. A pressure difference between the biogas in the upper and lower chambers causes a height difference of the slurry in the upper and lower chambers. By opening and closing a pipeline valve, pressure of the biogas can be released or increased, so that the slurry in the upper and lower chambers repeatedly flows back and forth to enhance the mixing and stirring of the slurry.

IPC Classes  ?

• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• C12M 1/107 - Apparatus for enzymology or microbiology with means for collecting fermentation gases, e.g. methane

Abstract

To address risks of secondary pollution, high treatment cost, and difficulties in large scale implementation of the prior art, the present invention discloses an in-line heavy metal detection and solid waste dehazardization method, wherein the technical procedure thereof comprises the following steps: step 1: leaching of a heavy metal; step 2: precipitation of the heavy metal; and step 3: recycling of the heavy metal. The invention is characterized that an in-line heavy metal detection process is added in step 1 and step 2. If a heavy metal ion content fails to satisfy a threshold requirement in step 1, then an acid wash process is performed repeatedly until the requirement is met. If a heavy metal ion content fails to satisfy a threshold requirement in step 2, then a heavy metal ion stabilizing agent is added and processing is performed until the requirement is met. The invention realizes in-line detection of processing data of a heavy metal solid waste, and satisfies dehazardization, minimization, and recycling requirements of a heavy metal solid waste processing technique.

IPC Classes  ?

• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass

Abstract

Disclosed are a leaching solution for a waste incineration fly ash chelate and preparation and application methods therefor. The leaching solution is composed of components such as sulfuric acid, glacial acetic acid, boric acid and deionized water. The preparation method therefor comprises the following steps: step one, 0.2-1.2 mg of boric acid is weighed and diluted and dissolved with 200 ml of deionized water for later use; step two, 0.5-1.5 ml of glacial acetic acid with a concentration of 99.5% is transferred and then diluted with 200 ml of deionized water for later use; step three, 1580-1590 ml of deionized water is measured with a measuring cylinder and poured into a beaker, and then, 10-20 ml of concentrated sulfuric acid with a concentration of 98% is measured with a measuring cylinder, the concentrated sulfuric acid is injected into the beaker and stirred continuously with a glass rod and cooled for later use; and step four, the solutions formulated in steps 2 and 3 are slowly added into a beaker of step 1 and stirred until uniform, wherein after cooling, the solution is transferred into a volumetric flask for later use. At the same time, also provided is a method for leaching the toxicity of a fly ash chelate by using the above leaching solution, which method can improve the efficiency of detecting large quantities of samples every day and provide a pre-treatment method for online monitoring technologies, thus making online monitoring possible.

IPC Classes  ?

• G01N 1/28 - Preparing specimens for investigation

Abstract

A waste incineration fly ash deacidifying and chelating agent having deacidifying and chelating functions. The contents of the components of the agent by weight are: 20-30% of sodium bicarbonate, 20-30% of hydrated lime, 5-10% of magnesium chloride, 15-25% of magnesium oxide, 1-3% of monocalcium phosphate, 5-10% of calcium sulfate, and 3-5% of sodium sulfide. Also provided is a method for preparing a waste incineration fly ash deacidifying and chelating agent having deacidifying and chelating functions. The agent has deacidifying and chelating functions, and can integrate, in a process, smoke deacidifying and fly ash chelating which need to be carried out in two processes in existing waste incineration power plants, so as to effectively reduce operating costs of the waste incineration power plants.

IPC Classes  ?

• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• A62D 3/00 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances
• B01D 53/00 - Separation of gases or vapoursRecovering vapours of volatile solvents from gasesChemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols

Abstract

An injection chelating treatment method for waste incineration fly ash, mainly using a deacidifying system to inject directly a solid powder fly ash chelating agent into smoke so as to mix the chelating agent directly with the smoke powder to complete the chelating process of the fly ash in the smoke. After collecting the waste incineration fly ash subsequently, the fly ash meets the requirements of GB16889-2008. According to the method, a deacidifying system is used to inject a chelating agent into smoke to individually chelate the smoke, or the deacidifying system is used to inject powder having deacidifying and chelating functions into the smoke to deacidify and chelate the smoke, thereby reducing the process, saving the space occupied by devices, and effectively reducing operating costs.

IPC Classes  ?

• B01D 53/40 - Acidic components
• A62D 3/33 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemically fixing the harmful substance, e.g. by chelation or complexation
• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless
• B09B 5/00 - Operations not covered by a single other subclass or by a single other group in this subclass

Abstract

Provided is a waste incineration fly ash stabilizing agent, consisting of potassium dihydrogen phosphate, polyferric silicate sulfate, polyferric chloride and sepiolite mud, and the content of each component by weight respectively being: 40%-50% of the potassium dihydrogen phosphate, 20%-30% of the polyferric silicate sulfate, 20%-30% of the polyferric chloride, and 5%-10% of the sepiolite mud. At the same time, also provided is a method for preparing the waste incineration fly ash stabilizing agent, comprising the following steps: in the first step, respectively weighing each material in the above-mentioned weight percentages; in the second step, grinding the polyferric silicate sulfate, the polyferric chloride and the sepiolite mud until uniform, wherein the particle size of the polyferric silicate sulfate is not more than 0.2 mm, the particle size of the polyferric chloride is not more than 0.15 mm, and the particle size of the sepiolite mud is not more than 0.1 mm; and in the third step, adding the ground polyferric silicate sulfate, polyferric chloride and sepiolite mud to the potassium dihydrogen phosphate and stirring same until uniform, so as to prepare the waste incineration fly ash stabilizing agent. The components of the waste incineration fly ash stabilizing agent of the present invention are collocated in a reasonable manner, each component can synergistically play its role, and the treated fly ash can satisfy the admission requirements of "Standard for pollution control on the landfill site of Municipal Solid Waste " (GB16889-2008).

IPC Classes  ?

• A62D 3/33 - Processes for making harmful chemical substances harmless, or less harmful, by effecting a chemical change in the substances by reacting with chemical agents by chemically fixing the harmful substance, e.g. by chelation or complexation
• A62D 101/08 - Toxic combustion residues, e.g. toxic substances contained in fly ash from waste incineration
• A62D 101/43 - Inorganic substances containing heavy metals, in the bonded or free state

Abstract

Disclosed is a two-section flue gas purification system of a garbage incinerator. According to the flowing direction of flue gas, the system is composed of a sodium bicarbonate dry deacidification system (1), a sodium bicarbonate injection system (2), a first-level bag dust remover (3.1), selectively catalytic reduction (SCR) (4), a limestone slurry preparation system (5), a semi-dry reaction tower (6), an activated carbon storage and delivery system (7), an activated carbon storage and injection system (8) and a second-level bag dust remover (3.2) in sequence. There is no need to mount a heat exchanger at the front end of the SCR in the system, thereby reducing the energy consumption.

IPC Classes  ?

• B01D 53/81 - Solid phase processes