Pipe inspection tool for inline inspection of a pipe or pipeline, having at least one inspection device (1) for inspecting the pipe or pipeline and drive means to move the pipe inspection tool inside the pipe or pipeline, the drive means comprising at least one wheel unit (21) with a main body (6) and at least a first and a second wheel (4) connected to said main body adapted to contact the inside wall of the pipe or pipeline, the main body being adapted to rotate with respect to the longitudinal axis of the pipe inspection tool to allow the wheels to rotate and thereby generate a force on the pipe or pipeline to move the inspection tool with respect to the pipe or pipeline, wherein the rotational axis of said at least one wheel is at an angle with respect to the longitudinal axis of the pipe inspection tool, to have, in use in a longitudinal section of the pipe or pipeline, the rotational axis of said at least one wheel at an angle with the longitudinal axis of the pipe or pipeline to generate, when rotating the wheel, a force on the pipe or pipeline in both the longitudinal direction and the radial direction thereof.
A primary conduit for a burner is described having a primary conduit outlet; the primary conduit defining a primary conduit flow channel extending to the primary conduit outlet; wherein the primary conduit includes a primary conduit end pipe (3) proximal the primary conduit outlet (7) defining a flow channel having a linear flow direction from a first inlet end to a second outlet end corresponding to the primary conduit outlet and a primary conduit elbow pipe (1) upstream of and in fluid communication with the primary conduit end portion defining a flow channel having a deviating flow direction from a first inlet end to a second outlet end corresponding to the inlet end of the primary conduit end portion. The primary conduit has in its flow channel successively in a downstream flow direction: a first swirler formation (9a) comprising at least one swirler vane a first swirler location and a second swirler formation (9b) comprising at least one swirler vane at a second swirler location. A burner is described incorporating such a primary conduit.
A primary conduit for a burner is described having a primary conduit outlet; the primary conduit defining a primary conduit flow channel extending to the primary conduit outlet; wherein the primary conduit includes a primary conduit end pipe (3) proximal the primary conduit outlet defining a flow channel having a linear flow direction from a first inlet end to a second outlet end corresponding to the primary conduit outlet and a primary conduit elbow pipe (1) upstream of and in fluid communication with the primary conduit end portion defining a flow channel having a deviating flow direction from a first inlet end to a second outlet end corresponding to the inlet end of the primary conduit end portion. The primary conduit has in its flow channel a particle concentrator (5) comprising an elongate annular ring formation with an outer diameter less than an inner diameter of the primary conduit and disposed axially relative to the primary conduit end pipe and in the vicinity of the junction between the primary conduit elbow pipe and the primary conduit end pipe so as there to divide the primary conduit flow channel into concentric outer and inner flow channels. A burner is described incorporating such a primary conduit.
A burner is described having a burner inlet for receiving a supply of fuel and a supply of comburant gas and a burner outlet in the vicinity of which combustion of the fuel is supported during use. The burner has a primary conduit defining a primary flow channel extending along a burner axis to a primary conduit outlet for conveying a mixture of fuel and a primary gas; a secondary conduit defining a secondary flow channel disposed about the primary conduit extending parallel to a burner axis to a secondary conduit outlet for conveying a secondary gas; a burner shroud comprising a shroud outlet plate located at the burner outlet transverse to the burner axis, having a shroud central outlet and a plate formation extending outwardly from the shroud central outlet over and beyond the primary conduit outlet and the secondary conduit outlet; a primary flow divider fluidly coupled to the shroud central outlet and configured thereat to divide the flow in the primary flow channel between a first primary subflow (PAl) to the shroud central outlet and a second primary subflow (PA2) diverted away from the shroud central outlet.
F23C 7/00 - Combustion apparatus characterised by arrangements for air supply
F23C 9/00 - Combustion apparatus characterised by arrangements for returning combustion products or flue gases to the combustion chamber
F23D 1/00 - Burners for combustion of pulverulent fuel
F23D 14/24 - Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
F23D 14/70 - Baffles or like flow-disturbing devices
A device to facilitate the inspection of a material sample using sound is described. The device has a wedge-shaped body of a first solid acoustic medium shaped to define a first acoustic surface, and a second acoustic surface spaced from and angled relative to the first acoustic surface, and having a plurality of further surfaces to form a solid body; a barrier layer of a second solid acoustic medium disposed upon at least a substantial part of, and preferably the whole area of, each of the said further surfaces; wherein the first acoustic medium is selected such that the velocity of sound through the first acoustic medium is below 1500 ms"1 and such that the acoustic attenuation of the medium is below 0.3 dB mm"1 : and wherein the second acoustic medium is selected to have an acoustic impedance relative to the first acoustic medium that differs by no more than 5% and an acoustic attenuation such as to produce an attenuation at the interface between the first and the second acoustic medium of at least 20 dB. A system including a sound generator and a method of inspection of a material sample using sound are also described.
G01N 29/28 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details providing acoustic coupling
A sensor assembly is described comprising a thermowell projecting portion having an internal wall defining a well cavity; at least one temperature sensor positioned to measure the temperature of the well cavity; at least one accelerometer sensor positioned inside the well cavity. A conduit for a process fluid having an elongate conduit wall surroundingly defining a conduit flow channel and such a sensor assembly fitted to an aperture in the conduit wall such that the thermowell projecting portion extends into the conduit flow channel is also described.
A pipe support structure is described comprising a support member defining a support surface, and a plurality of pipe support elements; wherein the support surface defines a plurality of grooves each correspondingly sized and shaped to receive a respective one of the pipe support elements, with the pipe support element being sized to project beyond its groove when so received. The pipe support elements may then be fabricated from a material selected for instance for low friction, corrosion resistance or the like. A pipeline system, a method for supporting a pipe, and a method for deploying a pipeline system are also described embodying the same general principles.
F16L 3/00 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
F16L 3/02 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
F16L 3/18 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in axial direction
F16L 57/06 - Protection of pipes or objects of similar shape against external or internal damage or wear against wear
F16L 58/02 - Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
A steam generation system for a thermal power plant is described. The system includes a first steam generation module comprising a furnace for the combustion of a fuel and the generation of hot gases to heat water and generate steam, including a first steam superheater disposed to supply superheated steam via a first superheated steam flow conduit to at least one first high pressure turbine and a first steam reheater disposed to supply reheated steam via a firstreheated steam flow conduit to at least one first intermediate pressure turbine; a second steam generation module comprising a second hot gas volume supplied with hot gases, a bypass superheated steam flow conduit in fluid communication with the first superheated steam flow conduit disposed to supply superheated steam via a second superheater within the second hot gas volume to at least one second high pressure turbine and a return flow conduit to return steam from the at least one second high pressure turbine to the first superheated steam flow conduit downstream of the bypass superheated steam flow conduit, and a bypass reheated steam flow conduit in fluid communication with the first reheated steam flow conduit disposed to supply reheated steam via a second reheater within the second hot gas volume to at least one second intermediate pressure turbine and a return flow conduit to return steam from the at least one second intermediate pressure turbine to the first reheated steam flow conduit downstream of the bypass reheated steam flow conduit; and a selective closure system for example comprising a valve arrangement selectively to close and open a flow passage to divert flow via the respective bypass and return flow conduits. A method of steam generation for a thermal power plant embodying the same principles is also described.
F01K 7/32 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines using steam of critical or over-critical pressure
F01K 7/06 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-inlet-pressure type
F01K 7/18 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbine being of multiple-inlet-pressure type
F01K 7/22 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
A pipe testing system is described comprising at least the following test modules: a pipe reeling and straightening simulation module comprising two pipe end holders, respectively to hold a first and a second end of a pipe section under test; a reeling former; a straightening former; a translator to effect relative translational movement of the pipe section under test and the reeling former and of the pipe and the straightening former to cause the pipe section undertest to move selectively into and out of contact with and to apply a contact force against one or other of the reeling former and the straightening former; wherein each pipe end holder comprises a pipe end connector and an extending arm extending beyond the pipe end connector in a pipe longitudinal direction; and wherein a lateral actuator is provided in association with each extending arm to apply a transverse load to the arm at a point distal from the pipe end connector; and one, other or both of an in-service pressure and temperature simulation module comprising: a pressure vessel shaped to receive a pipe section under test and thereby define a first closed fluid volume surroundingly outside the pipe section surface and a second fluid volume comprising the bore of the pipe section under test fluidly isolated from the first closed fluid volume; and respective environmental control systems to selectively control at least the pressure and temperature separately in each of said first and second fluid volumes; and/ or an in-service flexural fatigue simulation module comprising: a reciprocating four point bend system; and a heating means to heat a pipe section under test received within the reciprocating four point bend system to a desired test temperature. A pipe testing method is also described.
A pipe testing apparatus is described. The apparatus comprises two pipe end holders, respectively to hold a first and a second end of a pipe section under test; a reeling former; a straightening former; and a translator to effect relative translational movement of the pipe and the reeling former and of the pipe and the straightening former to cause the pipe to move selectively into and out of contact with and to apply a contact force against one or other of the reeling former and the straightening former. Each pipe end holder comprises a pipe end connector and an extending arm extending beyond the pipe end connector in a pipe longitudinal direction; and a lateral actuator is provided in association with each extending arm to apply a transverse load to the arm at a point distal from the pipe end connector. A pipe testing method is also described.
A burner outlet set (21, 41) for a downshot firing burner is described comprising a first outlet array having at least one primary outlet, and at least one vent air outlet (26, 46) disposed either side of the primary outlet (25, 45) in an array direction of the first outlet array; second and third outlet arrays each comprising an array of secondary air outlets (27, 47, 48), respectively disposed either side of the a first outlet array. A burner system with a plurality of such burner outlet sets, a burner arch (20) configured for downshot firing and having one or more such burner sets, and a combustion furnace with one or more such arches are also described.
A pipe support structure is described comprising a support member defining a support surface, and a plurality of pipe support elements; wherein the support surface defines a plurality of grooves each correspondingly sized and shaped to receive a respective one of the pipe support elements, with the pipe support element being sized to project beyond its groove when so received. The pipe support elements may then be fabricated from a material selected for instance for low friction, corrosion resistance or the like. A pipeline system, a method for supporting a pipe, and a method for deploying a pipeline system are also described embodying the same general principles.
F16L 57/06 - Protection of pipes or objects of similar shape against external or internal damage or wear against wear
F16L 58/00 - Protection of pipes or pipe fittings against corrosion or incrustation
F16L 3/02 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets partly surrounding the pipes, cables or protective tubing
F16L 3/18 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in axial direction
A device for the flameless oxidation of fuel, for example comprising a flameless oxidation burner, is described. The device comprises a first conduit to convey a fluid fuel phase to a first outlet and direct a primary jet comprising the fluid fuel phase outwardly therefrom; and a second conduit to convey a jacketing gas to a second outlet; wherein the second conduit is disposed surroundingly about the first conduit so as direct a jacketing jet of the jacketing gas outwardly therefrom surroundingly about the primary jet. The invention further relates to an apparatus for the flameless oxidation of fuel comprising one or more such devices, for example disposed to direct such fuel into a reaction chamber for flameless oxidation. The invention further relates to a method of flameless oxidation of fuel and to a method of operation of such a device or apparatus.
F23C 99/00 - Subject matter not provided for in other groups of this subclass
F23G 5/027 - Methods or apparatus, e.g. incinerators, specially adapted for combustion of waste or low-grade fuels including pretreatment pyrolising or gasifying
F23M 5/02 - Casings; Linings; Walls characterised by the shape of the bricks or blocks used
A burner includes a burner inlet and outlet. The burner also includes a primary conduit defining a flow channel extending along a burner axis for conveying a mixture of fuel and gas and a secondary conduit defining a flow channel disposed about the primary conduit for conveying gas. The primary conduit defines a flow channel extending to a primary conduit outlet within the burner substantially upstream of the burner outlet, whereby the secondary conduit downstream of the primary outlet defines a common conduit for flow from the primary and secondary conduits. A swirl generation device imparts a swirl to the flow of gas from the secondary conduit upstream of the primary conduit outlet. A venturi arrangement is provided in the vicinity of the primary outlet to act on the primary flow stream to impart a flow deviation.
An apparatus and method for fuel preparation for example by milling and drying to produce a pulverous fuel supply are described. The apparatus includes a fuel preparation unit adapted to receive a mixture of fuel and a gas and to prepare the fuel for combustion in a pulverous state; an output conduit defining an output flow path for a mixture of pulverous fuel and gas from the fuel preparation unit; a phase separator disposed to receive the mixture from the output conduit and to separate the mixture into a gas phase comprising at least a major part of the gas from the mixture and a fuel phase comprising the pulverous fuel; a gas phase conduit defining a flow path for the gas phase from the separator; a heat exchanger preferably being a process fluid heat exchanger such as a feed water heat recovery heat exchanger fluidly connected to the gas phase conduit and adapted to receive and dry the gas phase. The method applies the principles embodied in the apparatus.
A support structure for a boiler envelope, for example being the boiler envelope of a boiler thermal plant, a boiler structure so supported, and a method of supporting a boiler, are described. The support structure includes a support platform structure (15), comprising a part of the primary load bearing boiler cold structure for the boiler envelope, and adapted to engage with and thereby carry at least a major part of the static load of the boiler envelope. The support platform structure is provided surroundingly about the boiler envelope at a support platform level substantially below full envelope height and provided with associated further boiler cold structure in such manner that at least the substantial majority of the boiler cold structure is at or below the support platform level and preferably such that essentially all the boiler cold structure is at or below the support platform level and only elements of the boiler hot structure and the boiler pressure parts extend above the support platform level supported by the boiler cold structure.
A method of operation of a thermal power plant having an air separation system with a plurality of air storage unit (ASU) compressors and a liquid oxygen/liquid air (LOX/LA) storage facility for oxyfuel firing of fossil fuel and a power plant having a control system to perform the same are described. The method is characterized by the step of controlling the net power output of the plant in response to short term variations in grid demanded net plant output by dynamically adjusting the works power of the ASU compressors preferably in conjunction with co-ordinated changes in firing demand. The method is in particular a method to produce an improved primary and secondary response to transient changes in grid demand and to provide accurate response to load dispatch ramps.
H02N 99/00 - Subject matter not provided for in other groups of this subclass
F25J 3/04 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
F01K 13/02 - Controlling, e.g. stopping or starting
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
F01K 23/06 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
F01K 23/10 - Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
A steam generator (2) is described in which a combustion chamber has at least one combustion chamber wall formed by a plurality of longitudinal furnace tubes (10) for passage of an evaporatable flow medium, connected together in gas-tight manner by tube webs. As will be familiar different tubes are likely to be subjected to a heat input in use that varies when the combustion chamber is fired. The tube bores of the furnace tubes are larger where subject to higher heat input than where subject to lower heat input. In particular the tube bores of the furnace tubes are generally larger in the middle region of the combustion chamber wall than at the transversely peripheral regions of the combustion chamber wall.
F22B 29/06 - Steam boilers of forced-flow type of once-through type, i.e. built-up from tubes receiving water at one end and delivering superheated steam at the other end of the tubes
F22B 37/12 - Forms of water tubes, e.g. of varying cross-section
A burner is described having a burner inlet for receiving a supply of combustible pulverous fuel and a supply of comburant gas and a burner outlet in the vicinity of which combustion of the fuel is supported during use; said burner comprising: a primary conduit defining a flow channel extending along a burner axis for conveying a mixture of fuel and gas such as comburant gas; a secondary conduit defining a flow channel disposed about the primary conduit for conveying gas such as comburant gas; wherein the primary conduit defines a flow channel extending to a primary conduit outlet within the burner substantially upstream of the burner outlet, whereby the secondary conduit downstream of the primary outlet defines a common conduit for flow from the primary and secondary conduits; a swirl generation device is provided to impart a swirl to the flow of gas from the secondary conduit upstream of the primary conduit outlet; and a venturi arrangement is provided in the vicinity of the primary outlet such as to act on the primary flow stream to impart a flow deviation outwardly away from axial to the mixture of fuel and gas from the primary conduit.
A comburant gas supply system for a combustion boiler/turbine of a thermal power plant, a combustion boiler/ turbine system and a thermal power plant including the same are described. The gas supply system has an air separation module to separate and output an oxygen rich gas from an input air supply; a comburant gas storage module fluidly connected to the output of the air separation module for storage in liquid state of separated oxygen rich gas; a comburant gas supply module to supply the oxygen rich gas to the combustion boiler selectively from the air separation system and/ or the comburant gas storage system. It is characterized in that the air separation module has an oxygen rich gas output capacity that is determined from a demand rating for the combustion boiler/ turbine adjusted with reference to a load factor across a predetermined operating period and/ or the ASU size is increased to provide longer term energy storage capacity than previous sizing based on load factor.
F01K 13/00 - General layout or general methods of operation, of complete steam engine plants
F25J 3/04 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
A column structure (1) for the containment of high surface area packing (5) and absorbent liquid reagent for the removal of a target gas from a gas stream having an elongate upright wall structure defining a perimeter comprising a closed simple polygon or closed simple curve; a support structure extending inwardly from the perimeter of the column towards the top thereof; and slung tensile members (16) attached to the wall structure of the top support structure and extending downwardly to support at least internal column structure within the walls of the column.
The invention relates to a combustion apparatus, in particular to a burner for the combustion of carbonaceous fuel. The combustion apparatus comprises a burner having a burner inlet for receiving a supply of combustible pulverous fuel (1) and a supply of comburant gas (2) and a burner outlet (30) in the vicinity of which combustion of the fuel is supported during use; at least a primary conduit defining a flow channel for conveying a mixture of fuel and comburant gas from the burner inlet to the burner outlet; a fuel feed line defining a flow channel which conveys a pulverous combustible fuel in a dense phase; and a supply conduit fluidly connecting a comburant gas supply to the primary conduit and defining with the primary conduit a primary flow stream; wherein the fuel feed line is provided with a fuel feed outlet into the supply conduit upstream of the burner inlet to supply pulverous combustible fuel in a dense phase; and wherein the primary flow stream is provided with a mixing device (21) downstream of the fluid supply outlet. A method for combusting pulverous combustible fuel in a burner embodying such principles is also described.
The present disclosure relates to heat transfer methods and apparatus. The method comprises evaporating a first working fluid in an evaporator in the presence of a second working fluid thereby absorbing heat from circulating water within the process, transporting a mixture of first working fluid and second working fluid to a condenser/absorber where a third working fluid is added and whereby the third working fluid dissolves the second working fluid from the first working fluid causing the first working fluid to condense and transmitting heat to a heat sink, transporting the first working fluid back to the evaporator, transporting the mixture of the second and third working fluids to a separator wherein separation of said second and third working fluids from one another takes place, transporting said second working fluid to the evaporator and transporting said third working fluid to the condenser/absorber. The separation of second and third working fluids may be assisted by injecting of a pressurised gas and use of desiccants. Apparatus to accomplish the method are also disclosed.
A steam turbine system is described comprising at least one high pressure turbine, and / or at least one intermediate pressure turbine, and at least one first low pressure turbine, mounted on a first rotary shaft that is coupled to drive at least one first electrical generator; and at least one further low pressure turbine, mounted on a further rotary shaft that is coupled to drive at least one further electrical generator. The same rotary generator on the further shaft may be connected by flexible couplings to at least two or more low pressure turbines for multiple units within the same power plant. There is a steam supply system to supply low pressure steam to the low pressure turbines provided with a steam outlet to enable extraction of auxiliary process steam from a location in the steam supply system upstream of the further low pressure turbine but not upstream of the first low pressure turbine. The system is described as part of a steam generator fuelled by carbonaceous fuel combustion with post combustion carbon capture capability.
F01K 7/16 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
F01K 17/04 - Use of steam or condensate extracted or exhausted from steam engine plant for specific purposes other than heating
F01K 7/06 - Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of multiple-inlet-pressure type
An apparatus and method are described for processing of a source gas and for removal of a target gas from a source gas. The apparatus has an absorption system having a first containment structure defining a first process volume for containment of a gas phase and an absorbent liquid phase and a regeneration system fluidly downstream of the absorption system having a second containment structure defining a second process volume for containment of a gas phase and an absorbent liquid phase including a heating means to heat the liquid phase. An ultrasound transducer system is provided in association with one or both of the first containment structure or the second containment structure such as to apply in use ultrasonic vibration to a part of the said first containment structure and / or second containment structure and thus to apply in use ultrasonic vibration to the contents of a part of the first process volume and / or second process volume as the case may be.
A combustion furnace and a method of its operation are described. The furnace comprises a chamber defining a combustion volume having at least one primary inlet for fuel and combustion supporting gases and at least one primary outlet for combustion product gases, which chamber is provided with one or more additional ports, for example in fluid communication with a supply of gas for secondary gas flow, allowing for secondary gas flow into and/ or out of the combustion volume.
F23C 6/04 - Combustion apparatus characterised by the combination of two or more combustion chambers in series connection
F23L 9/04 - Passages or apertures for delivering secondary air for completing combustion of fuel by discharging the air beyond the fire, i.e. nearer the smoke outlet
F23L 7/00 - Supplying non-combustible liquids or gases, other than air, to the fire, e.g. oxygen, steam
F23N 5/24 - Preventing development of abnormal or undesired conditions, i.e. safety arrangements
A method of and control apparatus for operation of a boiler plant are described. The boiler plant has a furnace volume, an oxyfuel firing system for oxyfuel combustion of fuel in the furnace volume, and a compression system for compression of gases exhausted from the furnace volume after combustion. The method and control apparatus are characterized by the step of controlling mass flow of gases through the compression system as a means to control pressure within the furnace volume. This invention relates to both single and multi unit arrangements.
An apparatus for the simultaneous drying and transport of low-rank coal is described. The apparatus has a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface; a low-rank coal supply system to supply particulate low-rank coal to an inlet of the first flow channel; a transport gas supply to supply transport gas to an inlet of the first flow channel;a heating apparatus to apply heat to an outer wall surface of the first pipe along at least part of the length thereof for example in the form of a drying fluid supply to supply a drying fluid, configured such that a drying fluid is brought into contact with the outer wall surface of the first pipe along at least part of the length thereof. A system of design of thermal power plant incorporating such an apparatus is also described. A method for the simultaneous drying and transport of low-rank coal is also described. A system and method for supplying dried low-rank coal for combustion are also described.
F23K 3/02 - Pneumatic feeding arrangements, i.e. by air blast
F23K 1/00 - Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
F26B 17/10 - Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by fluid currents, e.g. issuing from a nozzle
F26B 23/10 - Heating arrangements using tubes or passages containing heated fluids
A column structure is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure comprises a plurality of vessel column modules each having an elongate upright wall structure, each column module comprises a plurality of vertically disposed sub-modules, the modules being disposed together alongside one another in two dimensional array to constitute collectively the column structure. A column top support structure is located in the vicinity of the upper part of a column structure so assembled and each column module is mechanically supported from the column top support structure. A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.
A column structure (21) is described for the containment of high surface area packing and absorbent liquid reagent for the removal of a target gas from a gas stream. The column structure (21) comprises at least one vessel having an elongate upright wall structure (15) to define an absorption process volume for the containment of high surface area packing and for the countercurrent flow of absorbent liquid reagent and target gas in use; and a column perimeter structure (22) comprising an elongate upright wall structure disposed around the at least one vessel in such manner that an inner wall of the elongate upright wall structure and an outer wall of a vessel cooperably define and fluidly enclose at least one secondary fluid volume fluidly isolated from the absorption process volume (s). A method of assembly of such a column and to a method of removal of a target gas from a gas phase using such a column are also described.
patents
