Abstract

The present application relates to an integrated system for regenerating sodium bicarbonate and recovering ammonia, and an integrated method for regenerating sodium bicarbonate and recovering ammonia by using same. According to the integrated system for regenerating sodium bicarbonate and recovering ammonia, and the integrated method for regenerating sodium bicarbonate and recovering ammonia by using same, of the present application, sodium bicarbonate can be regenerated and ammonia can be recovered from ammonium sulfate wastewater, generated during sodium bicarbonate regeneration, so as to be reused as ammonia water, and thus the cost of purchasing ammonia water required for process operation can be reduced, and additional operating revenue can be created through the commercialization of the generated ammonia water.

IPC Classes  ?

• C01D 7/00 - Carbonates of sodium, potassium, or alkali metals in general
• C01D 7/22 - Purification
• C01C 1/26 - Carbonates or bicarbonates of ammonium
• C01C 1/02 - Preparation or separation of ammonia
• C01C 1/24 - Sulfates of ammonium
• B01D 53/14 - 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 by absorption
• B01D 53/50 - Sulfur oxides
• B01D 19/00 - Degasification of liquids
• B01D 5/00 - Condensation of vapoursRecovering volatile solvents by condensation

Abstract

According to the present invention, the provided system for automatically designing a pipe rack comprises a pipe rack automation design unit, which receives pre-design information and environmental condition information so as to output design result data about the pipe rack, wherein the pipe rack automation design unit includes a pipe rack design model generated by a structural analysis program, and the pipe rack design model is automatically generated by transmitting the pre-design information and the environmental condition information to the structural analysis program through an application program interface (API) provided by the structural analysis program.

IPC Classes  ?

• G06F 30/18 - Network design, e.g. design based on topological or interconnect aspects of utility systems, piping, heating ventilation air conditioning [HVAC] or cabling
• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
• G06F 113/14 - Pipes
• G06F 119/14 - Force analysis or force optimisation, e.g. static or dynamic forces
• G06F 111/10 - Numerical modelling

Abstract

The present invention provides waste plastic melt supply equipment, which is equipment for supplying waste plastic melt to a gasification device for the gasification of waste plastics, the equipment comprising: a melt extruder for melting solid waste plastics while extruding and delivering same; and a melt post-treatment device for processing the waste plastic melt generated by the melt extruder, wherein the melt post-treatment device comprises a post-treatment tank where the waste plastic melt discharged from the melt extruder resides, a discharge line through which the waste plastic melt flows out of the post-treatment tank, and a circulation line that branches off from the discharge line and through which the waste plastic melt after discharged from the post-treatment tank is recirculated back to the post-treatment tank, whereby the waste plastic melt remains in the post-treatment tank for a certain period to homogenize the physical properties of the waste plastic melt in the post-treatment tank with the concomitant mild cracking of the polymer of the waste plastic melt.

IPC Classes  ?

• C10J 3/66 - Processes with decomposition of the distillation products by introducing them into the gasification zone
• C10K 1/00 - Purifying combustible gases containing carbon monoxide
• C10G 1/10 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste

Abstract

A construction method of a driving road in air, includes: constructing a steel frame and a plate which are designed and manufactured in advance; constructing a joint in each preset section on the steel frame and plate; constructing a road surface by pouring concrete in the joint construction section; and performing a roughening treatment on the constructed road surface of concrete.

IPC Classes  ?

• E01D 21/00 - Methods or apparatus specially adapted for erecting or assembling bridges

Abstract

An N-value prediction apparatus according to an embodiment of the present invention includes a hypothetical learning data augmentation unit, based on an actual N-value measured at an actual location according to the Standard Penetration Test through drilling investigation, generating at least one of hypothetical N-values corresponding to a preset hypothetical point based on the actual location, an N-value prediction model learning unit learning ground characteristic data corresponding to each of the actual location and the hypothetical point by artificial intelligence, the ground characteristic data including the actual N-value and the hypothetical N-values, and an N-value prediction result calculation unit predicting an N-value at an arbitrary prediction target point by using an N-value prediction model generated by artificial intelligence learning executed in the N-value prediction model learning unit.

IPC Classes  ?

• G06N 20/00 - Machine learning
• E02D 1/02 - Investigation of foundation soil in situ before construction work

Abstract

In corrosion rate measurement equipment according to an atmospheric environment according to the present invention, the length of a conductive pattern for temperature correction of a corrosion sensor is greater than the length of a conductive pattern for corrosion measurement, and the surface area of the conductive pattern for temperature correction of a corrosion sensor is less than the surface area of the conductive pattern for corrosion measurement so that a measured error of reference resistance measured values measured in the conductive pattern for temperature correction is minimized and thus the measured values measured in the conductive pattern for corrosion measurement can be more accurately corrected by using the reference resistance measured value and thus, corrosion rate can be more accurately measured.

IPC Classes  ?

• G01N 17/02 - Electrochemical measuring systems for weathering, corrosion or corrosion-protection measurement
• G01D 21/02 - Measuring two or more variables by means not covered by a single other subclass

Abstract

The present invention provides a method for gasifying waste plastics comprising: a waste plastic melting step of producing a molten waste plastic material by melting waste plastics; and a gasification step of partially oxidizing the molten waste plastic material in a gasification furnace to produce synthesis gas.

IPC Classes  ?

• C10J 3/64 - Processes with decomposition of the distillation products
• C10G 1/10 - Production of liquid hydrocarbon mixtures from oil shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal from rubber or rubber waste
• B29B 17/04 - Disintegrating plastics
• C10G 70/00 - Working-up undefined normally gaseous mixtures obtained by processes covered by groups , , , ,
• F23G 5/02 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment
• 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 7/12 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of specific waste or low grade fuels, e.g. chemicals of plastics, e.g. rubber

Abstract

An N-value prediction device according to the present invention comprises: a virtual learning data augmentation unit which generates at least one virtual N-value corresponding to a virtual point preset on the basis of an actual measurement position, on the basis of an actual N-value measured at the actual measurement position by a standard penetration test according to a drilling survey; an N-value prediction model learning unit which includes the measured N-value and the virtual N-value, and learns ground characteristic data corresponding to each of the actual measurement position and the virtual point with artificial intelligence; and an N-value prediction result calculation unit which predicts an N-value at an arbitrary prediction target point by using an N-value prediction model generated by artificial intelligence learning performed in the N-value prediction model learning unit.

IPC Classes  ?

• G01N 3/40 - Investigating hardness or rebound hardness
• G01N 3/34 - Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by mechanical means, e.g. hammer blows
• G01N 33/24 - Earth materials
• E02D 1/02 - Investigation of foundation soil in situ before construction work
• G06N 3/08 - Learning methods

Abstract

According to the present invention, provided is a steel structure design system comprising: an automation design unit which has a basic structural analysis model for a steel structure, generated by means of a structural analysis program, and which outputs automatic design result values for input basic design conditions; a machine learning unit for generating a prediction model for the steel structure by machine-training the automatic design result values; and an expanded database for storing more of the prediction result values than of the automatic design result values for expanded design conditions outputted from the prediction model.

IPC Classes  ?

• G06F 30/27 - Design optimisation, verification or simulation using machine learning, e.g. artificial intelligence, neural networks, support vector machines [SVM] or training a model
• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• G06N 20/00 - Machine learning
• G06F 111/20 - Configuration CAD, e.g. designing by assembling or positioning modules selected from libraries of predesigned modules

Abstract

The present disclosure may relate to a steel structure design system including an automated design unit having a basic structural analysis model for a steel structure generated by a structural analysis program, the automated design unit being configured to output automatic design result values under an input basic design condition, a machine learning unit configured to machine-learn the automatic design result values to generate a prediction model for the steel structure, and an extended database formed as the result of storing prediction result values under an extended design condition more than the automatic design result values output by the prediction model.

IPC Classes  ?

• G06F 30/13 - Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
• G06N 20/20 - Ensemble learning
• G06N 5/04 - Inference or reasoning models

Abstract

Disclosed is a neutralization method for neutralizing purified dredged soil, which has been washed with an acid in order to remove contaminants. According to the neutralization method, a solid neutralizer is added to and mixed with the purified dredged soil in order to neutralize the purified dredged soil in a solid state. In addition, according to the neutralization method, in order to neutralize used process water in a liquid state, having been used for acid washing, a liquid neutralizer is added to and mixed with the used process water.

IPC Classes  ?

• B09C 1/08 - Reclamation of contaminated soil chemically
• C02F 1/66 - Treatment of water, waste water, or sewage by neutralisationTreatment of water, waste water, or sewage pH adjustment
• C02F 1/52 - Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities

Abstract

The present invention relates to an ammonia recovery device and operating method coupled with carbon dioxide degassing. In particular, the present invention relates to a method of extracting methane gas by fermenting organic waste, separating digestive fluid into liquid waste water and ammonia gas through a degassing technique, and treating an organic waste for manufacturing liquid fertilizer through the recovery of the separated ammonia.

IPC Classes  ?

• C05F 9/04 - Biological compost
• C02F 1/20 - Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• B09B 3/00 - Destroying solid waste or transforming solid waste into something useful or harmless

Abstract

The present invention relates to a hybrid CNT-RO membrane pressure vessel. The reverse osmosis separation membrane pressure vessel according to one embodiment of the present invention comprises a seawater inlet, multiple reverse osmosis separation membrane modules, a permeate water flow channel, a permeate water outlet, and a concentrated water outlet, and one or more modules of the multiple reverse osmosis separation membrane modules, which are located at the front end of the pressure vessel, constitute a first module unit, and modules located behind the first module unit constitute a second module unit, and the flux of the respective modules constituting the second module unit may be greater than that of the respective modules constituting the first module unit.

IPC Classes  ?

• B01D 61/08 - Apparatus therefor
• B01D 61/02 - Reverse osmosisHyperfiltration

Abstract

The present invention relates to a highly-concentrated organic waste water system and waste water treating method using a heating membrane filtration concentrating device. More particularly, the present invention relates to a method which: applies a heating membrane filtration concentrating device to a membrane-coupled anaerobic digestion process; simultaneously increases the water treated by the membrane filtration concentrating device and reduces the amount of energy used to heat an anaerobic digestion tank by producing a concentrated liquid heated in a membrane filtration concentrating process and returning same to the anaerobic digestion tank; ensures stability in a downstream waste water treating process by raising the water temperature of water treated in the membrane filtration concentrating device; and increases the cleaning efficiency of the membrane filtration concentrating device and the service life of the membrane by raising the temperature of washing chemicals during washing of the membrane.

IPC Classes  ?

• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes
• B01D 65/00 - Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
• B01D 61/00 - Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltrationApparatus, accessories or auxiliary operations specially adapted therefor

Abstract

The present invention relates to a system and method of remediating heavy metal-contaminated soil using dry disintegration in a particle size-selective manner. The system for remediating contaminated soil comprises: a pretreatment unit for pretreating the contaminated soil to control the water content and the size of the soil; a disintegration unit for disintegrating the pretreated soil into individual particles; a particle separation unit for separating the disintegrated particles a standard particle size; a heavy metal removal unit for peeling off the surface of the separated soil particles larger than the standard particle size using a surface friction force and an impact force to remove heavy metals in dry condition; and a separation and collection unit for separating and collecting the peeled-off surface from the soil particles.

IPC Classes  ?

• B09C 1/00 - Reclamation of contaminated soil
• B02C 21/00 - Disintegrating plant with or without drying of the material
• B02C 23/14 - Separating or sorting of material, associated with crushing or disintegrating with more than one separator
• B02C 19/06 - Jet mills
• B02C 23/08 - Separating or sorting of material, associated with crushing or disintegrating
• B07B 4/02 - Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall

Abstract

A device for refining biogas according to the present invention controls the operation of an adsorption module according to the methane concentration of biogas, which flows into a blower, and recovers and recirculates generated biomethane, when the methane concentration is below a threshold, thereby further improving the quality of finally produced biomethane. In addition, operation of a cooler is controlled according to the temperature of biogas, which flows into the blower, thereby preventing degradation of refinement performance due to a change of the atmospheric temperature or the temperature of the biogas. As a result, the refinement performance is improved, thereby increasing the amount of produced biomethane and further improving the quality of biomethane. In addition, biomethane is recovered and recirculated according to the methane concentration of the produced biomethane, thereby improving the recovery ratio of biomethane. In addition, the methane concentration of residual gas or purge gas, which is discharged from the adsorption module into the atmosphere and discarded, is measured to recover and recirculate the residual gas or purge gas according to the methane concentration, thereby maximizing the methane recovery ratio.

IPC Classes  ?

• B01D 53/047 - Pressure swing adsorption
• B01D 53/04 - 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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
• C07C 7/12 - Purification, separation or stabilisation of hydrocarbonsUse of additives by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers

Abstract

The present invention relates to a system for remediating highly contaminated fine soil using multiple micro hydrocyclones that includes: a mill adapted to mix contaminated soil with water and to individualize the soil; a screen adapted to separate the soil introduced from the mill into soil having given particle sizes; a separator adapted to finely separate the soil having particle sizes of less than a given value by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the finely separated soil introduced from the separator by particle size by means of process water for washing; and a filtering unit adapted to separately discharge the soil washed and introduced through the remediating unit and the process water for washing contained in the soil.

IPC Classes  ?

• B09C 1/02 - Extraction using liquids, e.g. washing, leaching
• B07B 7/086 - Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by the winding course of the gas stream
• B04C 9/00 - Combinations with other devices, e.g. fans
• B07B 13/04 - Grading or sorting solid materials by dry methods, not otherwise provided forSorting articles otherwise than by indirectly controlled devices according to size

Abstract

The present invention relates to a system and method for remediating contaminated soil through separation and process of highly contaminated coarse soil, the system including: a screen adapted to separate the contaminated soil introduced into soil having given particle sizes; multiple hydrocyclones adapted to re-separate the soil having particle sizes of more than the given values by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the soil separated through the multiple hydrocyclones by particle size; and a filtering unit adapted to separate water from the soil washed through the remediating unit.

IPC Classes  ?

• B09C 1/02 - Extraction using liquids, e.g. washing, leaching
• C02F 1/00 - Treatment of water, waste water, or sewage
• B07B 13/04 - Grading or sorting solid materials by dry methods, not otherwise provided forSorting articles otherwise than by indirectly controlled devices according to size
• B07B 1/04 - Stationary flat screens
• C02F 1/28 - Treatment of water, waste water, or sewage by sorption
• B07B 1/40 - Resonant vibration screens
• C02F 101/10 - Inorganic compounds
• C02F 101/20 - Heavy metals or heavy metal compounds

Abstract

The present invention relates to a water quality sensor and a remote monitoring system which are equipped to analyze and manage water quality in a water treatment plant and, more specifically, to an expert decision-making system based on a water quality sensor and a remote monitoring system in a water treatment plant, capable of reducing labor costs by adding, to a conventional water quality sensor and remote monitoring system in a water treatment plant, a system for decision-making by an expert, thereby requiring less manpower than that needed for direct management on-site; and also allowing more accurate and precise real-time management of the water treatment plant due to the expert's decision-making.

IPC Classes  ?

• G06Q 50/10 - Services
• G06Q 50/26 - Government or public services

Abstract

The present invention relates to a process of preparing of a phosphorus-containing phosphorus-alumina support by a sol-gel method and a cobalt/phosphorus-alumina catalyst where cobalt is supported onto the phosphorus-alumina support as an active ingredient. The phosphorus-alumina support is prepared by a sol-gel method and has wide specific surface area with bimodal pore size distribution and high cobalt dispersion, thereby enabling to increase heat and mass transfer, stabilize the structure by modifying the surface property of alumina and decrease the deactivation rate due to the reduced oxidation of cobalt component during the F-T reaction. When Fischer-Tropsch reaction (F-T) is conducted on the catalyst, the catalyst maintains a superior thermal stability, inhibits the deactivation due to water generation during the F-T reaction and also causes relatively high conversion of carbon monoxide and stable selectivity of liquid hydrocarbons.

IPC Classes  ?

• B01J 27/18 - PhosphorusCompounds thereof containing oxygen with metals
• B01J 27/185 - PhosphorusCompounds thereof with iron group metals or platinum group metals
• B01J 23/75 - Cobalt
• B01J 27/16 - PhosphorusCompounds thereof containing oxygen
• B01J 35/10 - Solids characterised by their surface properties or porosity
• C10G 2/00 - Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon
• B01J 37/03 - PrecipitationCo-precipitation
• B01J 21/04 - Alumina

Abstract

The power generation apparatus according to the present invention includes: a central shaft rotating in the forward or reverse direction; a first rotor coupled to the central shaft via a first unidirectional bearing so as to rotate with the central shaft in the forward direction when the central shaft rotates in the forward direction; and a second rotor coupled to the central shaft via a second unidirectional bearing so as to rotate with the central shaft in the reverse direction when the central shaft rotates in the reverse direction. The power generation apparatus according to the present invention can be efficiently operated by an external power source which moves in two directions, and can have improved durability.

IPC Classes  ?

• H02K 57/00 - Dynamo-electric machines not provided for in groups ; H02K 17/00-H02K 55/00

Abstract

The present invention relates to a system and method of remediating heavy metal-contaminated soil using dry disintegration in a particle size-selective manner. The system for remediating contaminated soil comprises: a pretreatment unit for pretreating the contaminated soil to control the water content and the size of the soil; a disintegration unit for disintegrating the pretreated soil into individual particles; a particle separation unit for separating the disintegrated particles a standard particle size; a heavy metal removal unit for peeling off the surface of the separated soil particles larger than the standard particle size using a surface friction force and an impact force to remove heavy metals in dry condition; and a separation and collection unit for separating and collecting the peeled-off surface from the soil particles.

IPC Classes  ?

• B02C 19/06 - Jet mills
• B07B 13/04 - Grading or sorting solid materials by dry methods, not otherwise provided forSorting articles otherwise than by indirectly controlled devices according to size
• B09C 1/00 - Reclamation of contaminated soil

Abstract

Disclosed are a device and a method for manufacturing a natural gas hydrate. Provided is the device for manufacturing a natural gas hydrate comprising: an ice slurry generation unit for preparing ice slurry having 13-20% of ice at normal pressure; a first pipe, having one end connected to the ice slurry generation unit for withdrawing the ice slurry from the ice slurry generation unit, and in which a high-pressure pump for increasing pressure on the ice slurry is interposed; a hydrate preparation reactor, which is connected to the other end of the first pipe so as to receive the pressurized ice slurry, and to which natural gas is supplied and mixed, for generating natural gas hydrate slurry; a second pipe, having one end connected to the hydrate preparation reactor, for withdrawing the natural gas hydrate slurry; and a dehydrating portion, which is connected to the other end of the second pipe, for dehydrating the natural gas hydrate slurry.

IPC Classes  ?

• B01J 19/18 - Stationary reactors having moving elements inside
• C10L 3/10 - Working-up natural gas or synthetic natural gas
• C10L 5/12 - Briquetting processes with the aid of binders, e.g. pretreated binders with inorganic binders
• B01J 3/04 - Pressure vessels, e.g. autoclaves

Abstract

Disclosed is a device for revaporizing natural gas. Provided is a device for revaporizing natural gas hydrate pellets, comprising: a pellet charging portion for charging pellets which is formed with an upper valve and a lower valve so as to divide space for adjusting pressure; a storing portion, which communicates with the lower portion of the pellet charging portion, for receiving pellets when the lower valve is opened; a transfer screw, one end of which couples to the lower portion of the storing portion, for transferring the pellets in the storing portion; and a dissolving reaction tub, which is coupled to the other end of the transfer screw, receives pellets from the lower portion of the dissolving reaction tub, and which accommodates heating water.

IPC Classes  ?

• B01D 11/02 - Solvent extraction of solids
• B01J 3/04 - Pressure vessels, e.g. autoclaves
• F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation

Abstract

The present invention relates to a system for remediating highly contaminated fine soilusing multiple micro hydrocyclones that includes: a mill adapted to mix contaminated soil with water and to individualizethe soil; a screen adapted to separate the soil introduced from the mill into soil having given particle sizes; a separator adapted to finely separate the soil having particle sizes of less than a given value by particle size from the soil having the given particle sizes separated through the screen; a remediating unit adapted to wash the finely separated soil introduced from the separator by particle size by means of process water for washing; and a filtering unit adapted to separately discharge the soil washed and introduced through the remediating unit and the process water for washing contained in the soil.

IPC Classes  ?

• B09C 1/02 - Extraction using liquids, e.g. washing, leaching
• B04C 5/00 - Apparatus in which the axial direction of the vortex is reversed
• B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
• B07B 13/04 - Grading or sorting solid materials by dry methods, not otherwise provided forSorting articles otherwise than by indirectly controlled devices according to size

Abstract

The present invention relates to a tunnel reinforcement structure capable of controlling ground displacement using pressurization, including: reinforcements adapted to be forcedly inserted into the bored holes formed along the outer surface of the section to be excavated of the tunnel; auxiliary reinforcements disposed between the reinforcements from a point between 4 m and 8 m inwardly from the ends of the reinforcements; steel ribs disposed on the inner four faces of the excavation face of the tunnel; pressurizing bags each provided between the steel ribs and the excavated inner surface of the tunnel; a concrete part adapted to be cast between the steel ribs; and lining concrete adapted to be cast to the steel ribs and the inner surface of the concrete part.

IPC Classes  ?

• E21D 11/00 - Lining tunnels, galleries or other underground cavities, e.g. large underground chambersLinings thereforMaking such linings in situ, e.g. by assembling
• E21D 9/04 - Driving tunnels or galleries through loose materialsApparatus therefor not otherwise provided for
• E21D 11/10 - Lining with building materials with concrete cast in situShuttering or other equipment adapted therefor

Abstract

The present invention relates to a system and method for remediating contaminated soil through separation and process of highly contaminated coarse soil, the system including: a screen adapted to separate the contaminated soil introduced into soil having given particle sizes; multiple hydrocyclones adapted to re-separate the soil having particle sizes of more than the given values by particle size from the soil having the given particlesizes separated through the screen; a remediatingunit adapted to wash the soil separated through the multiple hydrocyclones by particle size; and a filtering unit adapted to separate water from the soil washed through the remediating unit.

IPC Classes  ?

• B09C 1/02 - Extraction using liquids, e.g. washing, leaching
• B04C 5/00 - Apparatus in which the axial direction of the vortex is reversed
• B03B 9/00 - General arrangement of separating plant, e.g. flow sheets
• B07B 13/04 - Grading or sorting solid materials by dry methods, not otherwise provided forSorting articles otherwise than by indirectly controlled devices according to size

Abstract

The present invention relates to an apparatus and method for treating organic waste. The apparatus for treating organic waste comprises an acid fermenter, a methane fermenter, a cushion chamber and a separator membrane device, vortex flow generating means having a plurality of nozzles installed in the methane fermenter to enable anaerobically digested water in the methane fermenter to be stirred by a vortex flow, a gas holder installed in the cushion chamber to compensate for the negative pressure generated when the digested water contained in the cushion chamber is discharged, and means for switching the injection direction of the digested water being supplied to the separator membrane device. According to the present invention, the performance of stirring the organic waste is maximized by the vortex flow generated from an existing stirrer and nozzles, the digested water is smoothly discharged from the cushion chamber, contamination of a tubular filtration membrane is remarkably delayed, the life of the filtration membrane is elongated and costs for replacing filtration members are minimized.

IPC Classes  ?

• C02F 3/28 - Anaerobic digestion processes
• C02F 11/04 - Anaerobic treatmentProduction of methane by such processes

Abstract

The present invention relates to a tunnel reinforcement structure capable of controlling ground displacement using pressurization, including: reinforcements adapted to be forcedly inserted into the bored holes formed along the outer surface of the section to be excavated of the tunnel; auxiliary reinforcements disposed between the reinforcements from a point between 4 m and 8 m inwardly from the ends of the reinforcements; steel ribs disposed on the inner four faces of the excavation face of the tunnel; pressurizing bags each provided between the steel ribs and the excavated inner surface of the tunnel; a concrete part adapted to be cast between the steel ribs; and lining concrete adapted to be cast to the steel ribs and the inner surface of the concrete part.

IPC Classes  ?

• E21D 11/00 - Lining tunnels, galleries or other underground cavities, e.g. large underground chambersLinings thereforMaking such linings in situ, e.g. by assembling

Abstract

The present invention relates to a concrete panel using an expansion bag, a road paving method and a road repairing method, wherein, in paving a road by connecting with two or more concrete panels each other, According to the present invention, it is possible to easily adjust the horizontal height of the concrete panel, and to adjust the horizontal height of a concrete panel by correct data not by an experience of a constructor. In addition, According to the present invention, it is possible to construct the road at a low price.

IPC Classes  ?

• E01C 23/10 - Devices or arrangements for working the finished surfaceDevices for repairing the surface of damaged paving for raising or levelling sunken pavingDevices or arrangements for working the finished surfaceDevices for repairing the surface of damaged paving for filling voids under pavingDevices or arrangements for working the finished surfaceDevices for repairing the surface of damaged paving for introducing material into substructure

Abstract

Disclosed are a device and a method for manufacturing a natural gas hydrate. Provided is the device for manufacturing a natural gas hydrate comprising: an ice slurry generation unit for preparing ice slurry having 13-20% of ice at normal pressure; a first pipe, having one end connected to the ice slurry generation unit for withdrawing the ice slurry from the ice slurry generation unit, and in which a high-pressure pump for increasing pressure on the ice slurry is interposed; a hydrate preparation reactor, which is connected to the other end of the first pipe so as to receive the pressurized ice slurry, and to which natural gas is supplied and mixed, for generating natural gas hydrate slurry; a second pipe, having one end connected to the hydrate preparation reactor, for withdrawing the natural gas hydrate slurry; and a dehydrating portion, which is connected to the other end of the second pipe, for dehydrating the natural gas hydrate slurry.

IPC Classes  ?

• B01J 19/18 - Stationary reactors having moving elements inside
• C10L 3/10 - Working-up natural gas or synthetic natural gas
• C07C 7/20 - Use of additives, e.g. for stabilisation
• C07C 9/04 - Methane

Abstract

Disclosed is a device for revaporizing natural gas. Provided is a device for revaporizing natural gas hydrate pellets, comprising: a pellet charging portion for charging pellets which is formed with an upper valve and a lower valve so as to divide space for adjusting pressure; a storing portion, which communicates with the lower portion of the pellet charging portion, for receiving pellets when the lower valve is opened; a transfer screw, one end of which couples to the lower portion of the storing portion, for transferring the pellets in the storing portion; and a dissolving reaction tub, which is coupled to the other end of the transfer screw, receives pellets from the lower portion of the dissolving reaction tub, and which accommodates heating water.

IPC Classes  ?

• F17C 9/04 - Recovery of thermal energy
• F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation

Abstract

The present invention provides a method for controlling a heat recovery ventilation system having an outdoor air cooling function. According to the outdoor air cooling function, a heat exchange mode and an outdoor cooling mode are selectively operated. In the heat exchange mode, air introduced into a room and air discharged to the outside are heat exchanged by a heat-exchange section and then the introduced air is supplied to the room. In the outdoor air cooling mode, outdoor air bypasses the heat exchange section via an outdoor air cooling path in the case that heat exchange is not necessary, so that the air is directly introduced into the room. According to the present invention, the method for controlling a heat recovery ventilation system having an outdoor air cooling function and a ventilation device have the effects as follows. First, it is possible to save energy by selectively operating the ventilation system only when room air pollution is generated according to information on the level of room air pollution, or when direct outdoor introduction is favorable in terms of energy and the environment. Second, the heat exchange mode or the outdoor air cooling mode may be automatically operated by determining a favorable mode in terms of saving energy according to the availability of the outdoor air cooling. Third, it is possible to save energy and maintain a pleasant environment by preventing unnecessary outdoor air cooling by reducing a range set for outdoor air cooling if the level of the room air pollution is below environmental quality standards.

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 11/02 - Arrangement or mounting of control or safety devices
• F24F 12/00 - Use of energy recovery systems in air conditioning, ventilation or screening

Abstract

Disclosed herein is an apparatus and method for continuously producing and dehydrating gas hydrates. The apparatus includes a gas source, a water source, a reactor, a spinning wheel, and a centrifugal separator. The gas source and the water source are connected to the reactor. Gas and water are respectively supplied from the gas source and the water source into the reactor and react with each other in the reactor to form gas hydrate slurry. The spinning wheel and the centrifugal separator are provided in the reactor. The spinning wheel supplies the formed gas hydrate slurry to the centrifugal separator. The centrifugal separator dehydrates the gas hydrate slurry. Water removed from the gas hydrate slurry by the dehydration of the centrifugal separator is re-supplied into the reactor.

IPC Classes  ?

• C07C 9/02 - Acyclic saturated hydrocarbons with one to four carbon atoms
• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus

Abstract

The present invention relates to a high-strength silicoaluminophosphate-34 (SAPO-34) microsphere catalyst, to a method for preparing same, and to a method for preparing light olefins using same. In detail, the present invention relates to a method for preparing a SAPO-34 microsphere catalyst by spraying a slurry mixture containing a matrix, a binder, an additive, etc., onto the SAPO-34 slurry which is prepared by hydrothermal synthesis using various organic templates, such as tetraethylammonium hydroxide (TEAOH) or the like, wherein the organic templates are used alone or a mixture of the organic templates is used, drying the mixture slurry to obtain microspheres, and firing the microspheres. The present invention also relates to a SAPO-34 microsphere catalyst prepared by the method for a circulating fluidized bed reactor. The SAPO-34 microsphere catalyst of the present invention has a high strength and superior reaction activity, and therefore is suitable for use in a circulating fluidized bed reactor which requires a high strength catalyst. In addition, the SAPO-34 microsphere catalyst of the present invention has a long lifespan, and has a superior C1-C4 oxygenate conversion rate, and therefore is suitable for preparing light olefins such as ethylene, propylene, butane, and the like.

IPC Classes  ?

• B01J 29/85 - Silicoaluminophosphates [SAPO compounds]
• C07C 1/20 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon starting from organic compounds containing only oxygen atoms as hetero atoms
• C10G 11/18 - Catalytic cracking, in the absence of hydrogen, of hydrocarbon oils with preheated moving solid catalysts according to the "fluidised bed" technique

Abstract

Disclosed herein is an apparatus for continuously producing and pelletizing gas hydrates. The apparatus includes a gas supply unit, a water supply unit and a reactor. Gas and water are respectively supplied from the gas supply unit and the water supply unit into the reactor. The gas and water react with each other in the reactor. The reactor includes a dual cylinder unit which forms a gas hydrate in such a way as to squeeze a slurry of reaction water formed by the reaction between the gas and water. The dual cylinder unit includes an upper cylinder, a lower cylinder and a connection pipe which connects the upper cylinder to the lower cylinder. The connection pipe has passing holes through which the reaction water in the reactor flows into and out of the connection pipe.

IPC Classes  ?

• B01J 19/00 - Chemical, physical or physico-chemical processes in generalTheir relevant apparatus

Abstract

The present invention relates to a residual water circulation-type dredging head apparatus, to a dredger comprising same, and to a dredging method using same. More particularly, the present invention relates to a residual water circulation-type dredging head apparatus which circulates the residual water sucked into the dredging head apparatus together with sludge instead of simply discharging the residual water to the outside when dredging the bottom of the river or sea, and injects the residual water into the interior of the dredging head apparatus, to thereby prevent water contamination caused by the illegal discharge of residual water to the outside. The present invention also relates to a dredger comprising the dredging head apparatus, and to a dredging method using the dredging head apparatus.

IPC Classes  ?

• E02F 3/92 - Digging elements, e.g. suction heads
• B08B 3/14 - Removing waste, e.g. labels, from cleaning liquid
• E02F 3/90 - Component parts, e.g. drives, control devices

Abstract

The present invention relates to a method for preparing liquid hydrocarbons via a slurry phase Fischer-Tropsch (F-T) synthesis. In particular, the present invention relates to a method for preparing liquid hydrocarbons from syngas via slurry phase F-T synthesis using a catalyst, which can prevent the decrease in catalyst activity and filter clogging due to catalyst aggregation, simultaneously with improving selectivity for C5 or higher hydrocarbons by using C7-C12 alcohols having a high boiling point as an additive for a slurry reaction solvent or recycling the same alcohol separated from by-products that are generated during the F-T reaction. Since t he method of the present invention is more carbon-effective and shows improved long-term stability of a reactor, it can be effectively used in the preparation of liquid hydrocarbons.

IPC Classes  ?

• B01J 23/75 - Cobalt
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention relates to a cobalt-based catalyst for Fischer-Tropsch (F-T) synthesis, and to a production method therefor. More specifically, the present invention relates to a cobalt-based catalyst for Fischer-Tropsch  synthesis which is produced by first producing nanoparticles comprising a cobalt-based catalyst component exhibiting activity in Fischer-Tropsch reactions and then mounting these nanoparticles on a catalyst support, and which has a high conversion rate for carbon monoxide and catalytic stability and selectivity for liquid hydrocarbons; and it relates to a production method therefor.

IPC Classes  ?

• B01J 23/75 - Cobalt

Abstract

The present invention relates to a cobalt/zirconium-phosphorus/silica catalyst in which cobalt, as an active ingredient, is impregnated on a zirconium-phosphorus/silica support prepared by treating the surface of silica with zirconium and phosphorus, and a method of preparing the catalyst. The catalyst has excellent reactivity since it has excellent heat and mass transfer properties due to a large pore structure of silica and increased reducibility of cobalt; excellent dispersion of cobalt and other activation substances during Fischer-Tropsch (F-T) reaction; and reduced sintering of cobalt particles during the reaction, and thus high CO conversion and stable selectivity for liquid hydrocarbon can be obtained during the F-T reaction.

IPC Classes  ?

• B01J 23/75 - Cobalt
• B01J 21/08 - Silica
• B01J 27/182 - PhosphorusCompounds thereof with silicon
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention relates to a dredging monitoring system, and more particularly, to a dredging monitoring system which effectively collects measurement data related to dredging through a real-time monitoring system, systemically databases the collected data, and analyzes the tendency of the measurement data and the correlation between the measurement data, thereby enhancing the efficiency of dredging. The dredging monitoring system, which collects and analyzes measurement data required for a dredging operation so as to control a dredger, includes a measuring instrument that is installed in a delivery pipe so as to measure the physical characteristics of a sediment-water mixture and the flow state of the mixture on a delivery path; a data logger that collects data measured by the measuring instrument; an integrated data collector that measures a current signal output from the data logger so as to integrate the measurement data; a field monitoring server that receives the measurement data collected by the integrated data collector through CDMA (code division multiple access) communication and then stores the data in a database; and an integrated measurement managing server that receives the measurement data stored in the field monitoring server through the Internet. The dredging monitoring system can systemically and integrally manage a variety of measurement data related to dredging through a ubiquitous network. Further, since the dredging monitoring system provides a dredging operation state and a monitoring result to dredging operators in real time, it is possible to respond to an emergency occurring while the dredger is operated.

IPC Classes  ?

• H04Q 9/02 - Automatically-operated arrangements

Abstract

The present invention relates to a continuous separation and discharge apparatus and method of solid catalysts and liquid products for Fischer-Tropsch synthesis reactions, and more particularly, to a continuous separation and discharge apparatus and method of solid catalysts and products for Fischer-Tropsch synthesis reactions involving the conversion of synthetic gas into synthetic oil, by which products of the Fischer-Tropsch synthesis including wax, as a long-chain hydrocarbon, can be stably obtained by continuously separating the products from a slurry comprising solid catalyst particles and the products using periodic pulses of a feeding gas and discharging the products through a lower portion of a reactor. Provided is a continuous separation and discharge apparatus of solid catalysts and products for Fischer-Tropsch synthesis reactions including: a level sensing device which is installed at an upper portion of a reactor and detects the slurry-level of reactants; a solid catalyst/ product separation device and a discharge device which are installed at a lower portion of the reactor and separate and discharge liquid products from a mixed slurry in the reactor; and a control unit which receives a signal from the level sensing device to open and close the discharge device, wherein the separation device filters the solid catalysts, and the discharge device continuously discharges the products separated from the solid catalysts through the lower portion of the reactor by the amount of the synthesized products measured by a level sensing device.

IPC Classes  ?

• 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

The present invention relates to a process of preparing liquid-phase hydrocarbon mixture, which comprises continuously conducting Fischer-Tropsch synthesis reaction in the upper part and hydrocracking reaction in the lower part by using a continuous-flow dual-bed reactor which comprises two fixed-bed reactors filled with catalysts and continuously placed in upper and lower parts and a hydrogen-supplying pipe between the upper and the lower fixed-bed reactors and continuously supplying hydrogen in the lower fixed-bed reactor, thereby remarkably increasing the yield of C10-C20 liquid-phase hydrocarbon mixture as compared to the conventional Fischer-Tropsch synthesis reaction.

IPC Classes  ?

• B01J 8/04 - Chemical or physical processes in general, conducted in the presence of fluids and solid particlesApparatus for such processes with stationary particles, e.g. in fixed beds the fluid passing successively through two or more beds
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention relates to a process of preparing of a phosphorus-containing phosphorus-alumina support by a sol-gel method and a cobalt/phosphorus-alumina catalyst where cobalt is supported onto the phosphorus-alumina support as an active ingredient. The phosphorus-alumina support is prepared by a sol-gel method and has wide specific surface area with bimodal pore size distribution and high cobalt dispersion, thereby enabling to increase heat and mass transfer, stabilize the structure by modifying the surface property of alumina and decrease the deactivation rate due to the reduced oxidation of cobalt component during the F-T reaction. When Fischer-Tropsch reaction (F-T) is conducted on the catalyst, the catalyst maintains a superior thermal stability, inhibits the deactivation due to water generation during the F-T reaction and also causes relatively high conversion of carbon monoxide and stable selectivity of liquid hydrocarbons.

IPC Classes  ?

• B01J 27/185 - PhosphorusCompounds thereof with iron group metals or platinum group metals
• B01J 23/75 - Cobalt
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention relates to a cobalt/phosphorus-alumina catalyst in which cobalt is supported as an active component on a phosphorus-alumina support wherein phosphorus is supported on alumina surface. With a bimodal pore structure of pores of relatively different pore sizes, the catalyst provides superior heat- and matter-transfer performance and excellent catalytic reactivity. Especially, when Fischer-Tropsch (F-T) reaction is performed using the catalyst, deactivation by the water produced during the F-T reaction is inhibited and, at the same time, the dispersion and reducing property of cobalt and other active component are improved. Therefore, the cobalt/phosphorus-alumina catalyst for F-T reaction in accordance with the present invention provides good carbon monoxide conversion and stable selectivity for liquid hydrocarbons.

IPC Classes  ?

• B01J 27/185 - PhosphorusCompounds thereof with iron group metals or platinum group metals
• B01J 23/75 - Cobalt
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention relates to a cobalt/zirconia-alumina catalyst, in which cobalt is supported as an active ingredient on zirconia-alumina prepared by co-precipitation, having a bimodal pore structure with different pore sizes and maintaining a specific pore volume ratio and a method for preparing liquid hydrocarbons with high yield from the Fischer- Tropsch of a syngas (CO/H2/CO2 ) in the presence of the cobalt/zirconia-alumina catalyst.

IPC Classes  ?

• B01J 23/75 - Cobalt
• B01J 21/04 - Alumina
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

The present invention relates to an alumina- silica support having a double-layered, bimodal pore structure with different pore sizes in which alumina is dispersed on silica surface, a catalyst using the support and a method for preparing liquid hydrocarbons in high yield by Fischer- Tropsch reaction of a syngas (CO/H2/CO2) in the presence of the catalyst.

IPC Classes  ?

• B01J 21/12 - Silica and alumina
• C07C 1/04 - Preparation of hydrocarbons from one or more compounds, none of them being a hydrocarbon from oxides of carbon from carbon monoxide with hydrogen

Abstract

Provided is an apparatus for measuring and scanning density inside a dredging pipeline, the apparatus including an internal frame that is installed around a pipeline, through which dredged materials are transferred, and rotates about the pipeline by a unit angle of 90 degrees; an external frame that is connected to the internal frame through a guide rod so as to be rotated by the rotation of the internal frame, moves straightly along the guide rod in one direction, and pivots on the guide rod; a radiation source that is installed in one side of the external frame so as to irradiate radiation toward the pipeline; and a radiation detector that is disposed in the other side of the external frame so as to face the radiation source with the pipeline interposed therebetween, and detects the radiation passing through the pipeline.

IPC Classes  ?

• G01N 23/12 - Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or by transmitting the radiation through the material and measuring the absorption the material being a flowing fluid or a flowing granular solid

Abstract

Provided is an apparatus for measuring differential pressure of a dredging transportation pipeline, the apparatus including one or more measuring units that receive fluids from two arbitrary positions of the dredging transportation pipeline and measure the differential pressure therebetween. Each of the measuring units includes: two fluid supply pipes that diverge from two positions of the dredging transportation pipeline so as to supply the fluid within the dredging transportation pipeline; two transparent pillar pipes that are connected to ends of the respective fluid supply pipes such that the head of the fluids flowing in from the fluid supply pipes can be checked with the naked eyes; a ruler that is disposed between the transparent pillar pipes such that the head indicated through the transparent pillar pipes can be read through the scale thereof; an air pressure supply pipe that is connected to the upper ends of the respective transparent pillar pipes and applies counter air pressure onto the fluids flowing into the transparent pillar pipes so as to reduce the head of the fluids such that the height of the transparent pillar pipes can be reduced; a water supply pipe that is connected to the lower ends of the respective transparent pillar pipes and supplies water to the transparent pillar pipes such that the transparent pillar pipes are saturated; an air pressure supply source that provides air pressure to the air pressure supply pipe; and a water supply source that supplies water to the water supply pipe.

IPC Classes  ?

• G01L 13/04 - Devices or apparatus for measuring differences of two or more fluid pressure values using floats or liquids as sensing elements

Abstract

In a composite web truss girder that includes an upper flange and a lower flange formed of concrete and a web having a truss structure of a diagonal member formed of steel, a T-type shear connector is used to shear-connect the diagonal member to the upper flange or the lower flange at a panel point, at which the diagonal member and the upper flange or a lower flange are combined, thereby enhancing structural performance of the panel point without using a gusset plate.

IPC Classes  ?

• E04C 3/02 - JoistsGirders, trusses, or truss-like structures, e.g. prefabricatedLintelsTransoms

Abstract

A composite web truss girder includes an upper flange, a lower flange and a web, in which the upper and lower flanges include concrete, and the web has a truss structure of a diagonal member formed of steel. In forming a connection structure of a panel point at which steel member and the upper and lower flanges are combined, diagonal members are connected with a hinge so that the diagonal members are rotatable, and combined with each other. Then, the diagonal members are buried in the upper or lower flanges, and concrete flows into the diagonal member. Thus, assemblability of the diagonal member and the upper or lower flanges in the field may be enhanced, secure connection structure may be attained, and buckling of the diagonal member may be prevented.

IPC Classes  ?

• E01D 2/00 - Bridges characterised by the cross-section of their bearing spanning structure