CN103328615A - Fine coal powder supply system for coal gasification furnace - Google Patents
Fine coal powder supply system for coal gasification furnace Download PDFInfo
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- CN103328615A CN103328615A CN2012800064888A CN201280006488A CN103328615A CN 103328615 A CN103328615 A CN 103328615A CN 2012800064888 A CN2012800064888 A CN 2012800064888A CN 201280006488 A CN201280006488 A CN 201280006488A CN 103328615 A CN103328615 A CN 103328615A
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- Prior art keywords
- coal dust
- coal
- feeding hopper
- rare gas
- gas element
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- 239000003245 coal Substances 0.000 title claims abstract description 64
- 239000000843 powder Substances 0.000 title abstract description 11
- 238000002309 gasification Methods 0.000 title abstract description 5
- 238000010298 pulverizing process Methods 0.000 claims abstract description 5
- 239000002817 coal dust Substances 0.000 claims description 129
- 238000000034 method Methods 0.000 claims description 13
- 238000011049 filling Methods 0.000 claims description 5
- 230000001052 transient effect Effects 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 63
- 239000003610 charcoal Substances 0.000 description 17
- 239000003034 coal gas Substances 0.000 description 13
- 238000002485 combustion reaction Methods 0.000 description 13
- 230000006837 decompression Effects 0.000 description 10
- 239000000446 fuel Substances 0.000 description 9
- 238000001035 drying Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 238000000926 separation method Methods 0.000 description 7
- 239000002912 waste gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- 238000011144 upstream manufacturing Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000007664 blowing Methods 0.000 description 4
- 239000002737 fuel gas Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—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
- F01K23/06—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
- F01K23/067—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 the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification
- F01K23/068—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 the combustion heat coming from a gasification or pyrolysis process, e.g. coal gasification in combination with an oxygen producing plant, e.g. an air separation plant
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C7/00—Combustion apparatus characterised by arrangements for air supply
- F23C7/02—Disposition of air supply not passing through burner
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/0015—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor
- B01J8/0025—Feeding of the particles in the reactor; Evacuation of the particles out of the reactor by an ascending fluid
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/02—Dust removal
- C10K1/026—Dust removal by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00743—Feeding or discharging of solids
- B01J2208/00752—Feeding
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/156—Sluices, e.g. mechanical sluices for preventing escape of gas through the feed inlet
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1606—Combustion processes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1643—Conversion of synthesis gas to energy
- C10J2300/165—Conversion of synthesis gas to energy integrated with a gas turbine or gas motor
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1643—Conversion of synthesis gas to energy
- C10J2300/1653—Conversion of synthesis gas to energy integrated in a gasification combined cycle [IGCC]
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
- C10J2300/1675—Integration of gasification processes with another plant or parts within the plant with the production of electricity making use of a steam turbine
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1678—Integration of gasification processes with another plant or parts within the plant with air separation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Air Transport Of Granular Materials (AREA)
Abstract
The purpose of the present invention is to provide a fine coal powder supply system for a coal gasification furnace, which enables the reduction in the amount of an inert gas consumed (used). The fine coal powder supply system comprises: a fine coal powder supply hopper (3) which receives a fine coal powder that is pulverized using a coal pulverization machine (1); a first pressurized tank (31) which temporarily collects a portion of an inert gas that is filled in the fine coal powder supply hopper (3) and supplies the collected portion of the inert gas to the fine coal powder supply hopper (3) of which the inside is put into an atmospheric state during the reception of the fine coal powder by the fine coal powder supply hopper (3); and a second pressurized tank (32) which has, filled therein, an inert gas having a pressure required for increasing the pressure of the inside of the fine coal powder supply hopper (3) to a predetermined pressure.
Description
Technical field
The present invention relates to a kind of coal gasifier coal dust plenum system.
Background technology
As coal gasifier coal dust plenum system, known have for example patent documentation 1 a disclosed structure.
Technical literature formerly
Patent documentation
Patent documentation 1: TOHKEMY 2000-119666 communique
Summary of the invention
The problem that invention will solve
Use in the coal dust plenum system at above-mentioned patent documentation 1 disclosed coal gasifier, when replenishing (supply) coal dust (fuel) in the feeding hopper, for the pressure in the feeding hopper that makes atmospheric pressure state within the short time of trying one's best becomes the pressure higher than the pressure in the vapourizing furnace, and adopt two-stage pressuring method shown in Figure 5.
Yet, in two-stage pressuring method shown in Figure 5, after the coal dust possessed is supplied with and finished, when in order to admit coal dust next time the pressure in the feeding hopper being made as atmospheric pressure state, will be filled in rare gas element in the feeding hopper (N for example in feeding hopper
2) all in atmosphere, discharge (discarding).Therefore, the consumption of rare gas element (usage quantity) increases, and has uneconomic problem points.
The present invention makes in light of this situation, and its purpose is to provide a kind of coal gasifier coal dust plenum system that can cut down the consumption (usage quantity) of rare gas element.
Be used for solving the means of problem
The present invention is in order to solve above-mentioned problem, and adopts following scheme.
The coal gasifier of the first form of the present invention possesses with the coal dust plenum system: the coal dust feeding hopper, admit by the coal dust after the Coal-disintegrating machine pulverizing; The first pressurized tank, when described coal dust feeding hopper is admitted described coal dust, temporarily reclaim the part of the rare gas element of the inside that is filled in described coal dust feeding hopper, and this rare gas element that is recovered to inside is the described coal dust feeding hopper supply of atmospheric pressure state; And the second pressurized tank, filling agent has the rare gas element that to make the internal pressure of described coal dust feeding hopper in order supplying with to vapourizing furnace and then to rise to the required pressure of specified pressure.
According to the coal gasifier of above-mentioned the first form coal dust plenum system, when the coal dust feeding hopper is admitted coal dust, the part of rare gas element that is filled in the inside of coal dust feeding hopper is temporarily reclaimed by the first pressurized tank, and this rare gas element that is recovered to is filled to the inside of the coal dust feeding hopper that is in atmospheric pressure state again.
Thus, can cut down the consumption (usage quantity) of rare gas element.
Use in the coal dust plenum system at above-mentioned coal gasifier, more preferably, constitute, described coal dust feeding hopper arranges two at least, when at least one coal dust feeding hopper was therein admitted described coal dust, other coal dust feeding hopper was supplied with described coal dust to vapourizing furnace.
According to such coal gasifier coal dust plenum system, can continue stably to supply with coal dust to vapourizing furnace.
Above-mentioned coal gasifier with the coal dust plenum system in, more preferably, the capacity of described the first pressurized tank become described coal dust feeding hopper capacity 25% to 100%.
According to such coal gasifier coal dust plenum system, can make the capacity of the first pressurized tank be equal to or less than the capacity of the first step pressurized tank of in two-stage pressuring method in the past, using, can realize that this coal gasifier is with the miniaturization of coal dust plenum system integral body.
The gasifying combined generating apparatus of the second form of the present invention possesses above-mentioned any coal gasifier coal dust plenum system.
Gasifying combined generating apparatus according to above-mentioned the second form, owing to possessing the coal gasifier coal dust plenum system of the consumption (usage quantity) that can cut down rare gas element, therefore at the equipment that does not have the manufacturing rare gas element (for example, when buying rare gas element the air separation plant shown in the label 11 among Fig. 1) and from other places, can realize the reduction of running cost.
In addition, when having the equipment (for example, the air separation plant shown in the label 11 among Fig. 1) of making rare gas element, can realize the miniaturization of this equipment, can cut down initial investment and can cut down the power of this equipment, thereby can realize the reduction of running cost.
In the method for operation of the coal gasifier of the 3rd form of the present invention with the coal dust plenum system, described coal gasifier possesses with the coal dust plenum system: the coal dust feeding hopper, admit by the coal dust after the Coal-disintegrating machine pulverizing; The first pressurized tank, when described coal dust feeding hopper is admitted described coal dust, a temporary transient part that reclaims the rare gas element of the inside that is filled in described coal dust feeding hopper; And the second pressurized tank, filling has the rare gas element that the internal pressure that makes described coal dust feeding hopper rises to the required pressure of specified pressure, in the method for operation of described coal gasifier with the coal dust plenum system, the rare gas element that will be reclaimed by described the first pressurized tank is that the described coal dust feeding hopper of atmospheric pressure state is filled to inside, afterwards, the rare gas element that is filled in described the second tank is filled to described coal dust feeding hopper.
Use the method for operation of coal dust plenum system according to the coal gasifier of above-mentioned the 3rd form, when the coal dust feeding hopper is admitted coal dust, the part of the rare gas element of filling to the inside of coal dust feeding hopper is temporarily reclaimed by the first pressurized tank, and this rare gas element that is recovered to is filled to the inside of coal dust feeding hopper again.
Thus, can cut down the consumption (usage quantity) of rare gas element.
In the method for operation of above-mentioned coal gasifier with the coal dust plenum system, more preferably, described coal dust feeding hopper arranges two at least, and when at least one coal dust feeding hopper was therein admitted described coal dust, other coal dust feeding hopper was supplied with described coal dust to vapourizing furnace.
According to the method for operation of such coal gasifier with the coal dust plenum system, can continue stably to supply with coal dust to vapourizing furnace.
The invention effect
Coal gasifier coal dust plenum system according to the present invention plays the effect of the consumption (usage quantity) that can cut down rare gas element.
Description of drawings
Fig. 1 is the expression coal gasifier that possesses one embodiment of the present invention with the structure iron of the summary situation of the gasifying combined generating apparatus of coal dust plenum system.
Fig. 2 is the structure iron that the coal gasifier of expression one embodiment of the present invention is used the summary situation of coal dust plenum system.
Fig. 3 be for explanation to the coal gasifier of one embodiment of the present invention with the chart that replenishes the operation of (supply) coal dust (fuel) in the coal dust feeding hopper of coal dust plenum system.
Fig. 4 is expression and the capacity and the chart that utilizes the recoverable rare gas element the relationship between quantities of reclaim under reduced pressure tank of the reclaim under reduced pressure tank of the capacity relative of coal dust feeding hopper.
Fig. 5 is for the chart of explanation coal gasifier in the past with the two-stage pressuring method of coal dust plenum system.
Embodiment
Below, referring to figs. 1 through Fig. 4, the coal gasifier coal dust plenum system (coal gasifier coal powder supply device) of one embodiment of the present invention is described.
The gasifying combined generating apparatus 50 of embodiment shown in Figure 1 adopts take air as oxygenant and utilizes vapourizing furnace 4 to generate the air combustion mode of coal gas, will utilize the coal gas after gas purification device 7 is made with extra care to act as a fuel gas to internal combustion turbine 8 supplies.That is, gasifying combined generating apparatus 50 shown in Figure 1 is the gasifying combined generating apparatus of air combustion mode (air blowing) (below, be called " air blowing IGCC system ").
This air blowing IGCC system 50 imports the part of the waste gas after internal combustion turbine 8 described later, heat recovery boiler 9 works done as drying gas, and will as the coal of raw material with this drying with gas to Coal-disintegrating machine 1 supply.In Coal-disintegrating machine 1, utilize drying with gas the coal of supplying with to be heated, the moisture in the coal is removed and is ground into the fine particle shape and makes coal dust.
The coal dust of so making is carried to deep bed filter (cyclonic separator) 2 with gas by drying.In the inside of deep bed filter 2, dry gaseous constituent with gas etc. is separated with coal dust (particle composition), with gaseous constituent from deep bed filter 2 discharges.On the other hand, the coal dust of particle composition falls because of gravity, is reclaimed by coal dust feeding hopper (below, be called " hopper ") 3.
Be recovered to the nitrogen (carrying gas) that the coal dust in the hopper 3 imports by using as the pressurization carrying from air separation plant 11 described later, to vapourizing furnace 4 interior carryings.
Supply with coal dusts and charcoal described later as the raw material of coal gas to vapourizing furnace 4.In vapourizing furnace 4, the oxygen of supplying with take the pressurized air supplied with from compressor 12,13 and from air separation plant 11 is made the coal gas that coal dust and charcoal gasification are formed as oxygenant.
So in vapourizing furnace 4 coal gas of gasification from the top of vapourizing furnace 4 to gas cooler 5 guiding and be cooled.This coal gas is supplied with to charcoal retrieving arrangement 6 after by gas cooler 5 coolings.
In charcoal retrieving arrangement 6, will separate with the charcoal that the coal gas that coal dust gasification is formed generates.Coal gas flows out from the top of charcoal retrieving arrangement 6, supplies with to internal combustion turbine 8 by gas purification device 7.
In gas purification device 7, coal gas is made with extra care and made the fuel gas of internal combustion turbine 8.
The fuel gas (coal gas) of so making is supplied with and is burnt to the burner of internal combustion turbine 8, generates the combustion exhaust of High Temperature High Pressure.
This combustion exhaust is after the turbine that has driven internal combustion turbine 8, as the waste gas of high temperature and discharge.The internal combustion turbine 8 that so drives will link with generator 14 with the main shaft that turbine rotates, so can drive generator 14 and generate electricity.
The waste gas of the high temperature of discharging from internal combustion turbine 8 is supplied with to heat recovery boiler 9, is used as the thermal source that generates steam.Need to prove, the waste gas that is used in steam generates by heat recovery boiler 9 is discharged to atmosphere after having implemented necessary processing by not shown denitrification apparatus etc.
In addition, the part of the waste gas that is used in steam generates by heat recovery boiler 9 is drawn out of the drying gas as Coal-disintegrating machine 1, by drying with gas flow path G1 and to Coal-disintegrating machine 1 supply.Need to prove, with in the gas, the waste gas after the processing such as denitration has been implemented in use in this drying.And the steam that is generated by heat recovery boiler 9 is to steam turbine 15 supplies such as grade of generating usefulness.
The charcoal that is reclaimed by above-mentioned charcoal retrieving arrangement 6 reclaims because gravity falls to charcoal feeding hopper 10.Charcoal in the charcoal feeding hopper 10 uses from the nitrogen of air separation plant 11 supplies and uses gas as carrying, and is carried and is returned to vapourizing furnace 4 by this nitrogen.The charcoal that returns to vapourizing furnace 4 is used as the raw material that gasifies with coal dust.
So, the coal dust that coal pulverizer is obtained is gasifying in the vapourizing furnace 4 of oxygenant take air and oxygen, generates thus coal gas and charcoal.One side's coal gas is used the fuel gas as internal combustion turbine 8, again supplies with and is vaporized to vapourizing furnace 4 from the charcoal that coal gas separates.
Need to prove, label 16 among Fig. 1 is raw coal hoppers, label 17 is bottles, label 18 is the cyclonic separators that consist of charcoal retrieving arrangement 6, and label 19 is the porous filters that consist of charcoal retrieving arrangement 6 with cyclonic separator 18, and label 20 is charcoal bottles, label 21 is motors of drive compression machine 13 rotations, label 22 is chimneys, and label 23 is burners, and label 24 is coal dust drying drum blower fans.
In addition, the coal gasifier of present embodiment possesses at least two (being in the present embodiment two) hoppers 3, at least one (being in the present embodiment one) decompression exhaust withdrawing can (the first pressurized tank) 31, reaches at least one (being in the present embodiment one) pressurized tank (the second pressurized tank) 32 with coal dust plenum system 30.
Be connected with fuel feed pipe 35, airborne release pipe 36, decompression exhaust pipe 37 at the top of each hopper 3.
One end (upstream extremity) of fuel feed pipe 35 is connected with the bottom of bottle 17, and the other end of fuel feed pipe 35 (downstream end) is connected with the top of hopper 3, via fuel feed pipe 35 coal dust (fuel) is supplied with to hopper 3.
One end (upstream extremity) of airborne release pipe 36 is connected with the top of hopper 3, and the other end of airborne release pipe 36 (downstream end) opens wide to atmosphere, is connected with atmospheric dump valve V1 midway at each airborne release pipe 36.
One end (upstream extremity) of decompression exhaust pipe 37 is connected with the top of hopper 3, and the housing section top of the other end of decompression exhaust pipe 37 (downstream end) and decompression exhaust withdrawing can 31 is connected, and is connected with decompression exhaust valve V2 midway at decompression exhaust pipe 37.
Above the housing section of each hopper 3, be connected with the first rare gas element supply-pipe (forcing pipe) 41, below the housing section of each hopper 3, be connected with the second rare gas element supply-pipe (forcing pipe) 42.
One end (upstream extremity) of the first rare gas element supply-pipe 41 is connected with the housing section of reclaim under reduced pressure tank 31 below, the housing section top of the other end of the first rare gas element supply-pipe 41 (downstream end) and hopper 3 is connected, and is connected with the first rare gas element supply valve (pressurizing valve) V3 midway at the first rare gas element supply-pipe 41.
One end (upstream extremity) of the second rare gas element supply-pipe 42 is connected with the housing section of pressurized tank 32, the housing section below of the other end of the second rare gas element supply-pipe 42 (downstream end) and hopper 3 is connected, and is connected with the second rare gas element supply valve (pressurizing valve) V4 midway at the second rare gas element supply-pipe 42.
Then, use Fig. 3, illustrate to hopper 3 interior operations of replenishing (supply) coal dust (fuel).
At first, will be with below the hopper 3(that replenishes that requires coal dust, be called " this hopper 3 ") the decompression exhaust valve V2 that connects opens, via decompression exhaust pipe 37 will be this hopper 3 in the rare gas element of specified pressure filling take about the 5MPa be filled in the reclaim under reduced pressure tank 31 of interior pressure as about the 1.8MPa (Fig. 3 (1)).
If becoming with pressure in the reclaim under reduced pressure tank 31, the pressure in this hopper 3 equates (if becoming all pressures (about 3.3MPa)), then with decompression exhaust valve V2 Close All, and the atmospheric rilief valve V1 that will be connected with this hopper 3 opens, make the pressure in this hopper 3 become atmospheric pressure state, admit the coal dust (Fig. 3 (2)) of supplying with from bottle 17.
If the additional end of the coal dust in this hopper 3, then with atmospheric rilief valve V1 Close All, and the first rare gas element supply valve V3 that will be connected with this hopper 3 opens, thereby will be pre-charged with (recovery) rare gas element with the pressure about 3.3MPa in the reclaim under reduced pressure tank 31 to these hopper 3 interior fillings (Fig. 3 (3)).
If becoming with pressure in the reclaim under reduced pressure tank 31, the pressure in this hopper 3 equates (if becoming all pressures (about 1.8MPa)), then with the first rare gas element supply valve V3 Close All, and the second rare gas element supply valve V4 that will be connected with this hopper 3 opens, make pressure in this hopper 3 boost to specified pressure about 5MPa, finish to hopper 3 interior operations (Fig. 3 (4)) of replenishing (supply) coal dusts (fuel).
As shown in Figure 4, for example, when the capacity identical (being transverse axis 100% place in Fig. 4) of the capacity of hopper 3 and reclaim under reduced pressure tank 31, approximately 38% of the rare gas element that can utilize reclaim under reduced pressure tank 31 to reclaim to fill to hopper 3, when the capacity that makes reclaim under reduced pressure tank 31 is hopper 3 half (being transverse axis 50% place in Fig. 4), approximately 30% of the rare gas element that can utilize reclaim under reduced pressure tank 31 to reclaim to fill to hopper 3, when the capacity that makes reclaim under reduced pressure tank 31 is 1/4th (in Fig. 4 for transverse axis 25% place) of hopper 3, approximately 20% of the rare gas element that can utilize reclaim under reduced pressure tank 31 to reclaim should to fill to hopper 3.
Need to prove, as shown in Figure 4, even the capacity of the volume ratio hopper 3 of reclaim under reduced pressure tank 31 large (even in Fig. 4 than transverse axis 100% on the right side) can utilize reclaim under reduced pressure tank 31 to reclaim to fill the amount of rare gas element of (replenishing) to hopper 3 almost constant.
With coal dust plenum system 30, when hopper 3 was admitted coal dust, the part of rare gas element that is filled into the inside of hopper 3 was temporarily reclaimed by reclaim under reduced pressure tank 31 according to the coal gasifier of present embodiment, and the rare gas element of this recovery is filled again to the inside of hopper 3.
Thus, can cut down the consumption (usage quantity) of rare gas element.
In addition, according to the coal gasifier coal dust plenum system 30 of present embodiment, hopper 3 arranges two, and when a side hopper 3 was admitted coal dust, the opposing party's hopper 3 was supplied with coal dusts to vapourizing furnace 4.
Thus, can supply with coal dust to vapourizing furnace 4 sustainedly and stably.
In addition, according to the coal gasifier of present embodiment with coal dust plenum system 30, the capacity of reclaim under reduced pressure tank 31 be hopper 3 capacity 25% to 100%.
Thus, can make the capacity of reclaim under reduced pressure tank 31 be equal to or less than the capacity of the first step pressurized tank of in two-stage pressuring method in the past, using, can realize that this coal gasifier is with the miniaturization of coal dust plenum system 30 integral body.
In addition, according to gasifying combined generating apparatus 50 of the present invention, owing to possessing the coal gasifier coal dust plenum system 30 of the consumption (usage quantity) that can cut down rare gas element, therefore at the equipment that does not have the manufacturing rare gas element (for example, when buying rare gas element the air separation plant shown in the label 11 among Fig. 1) and from other places, can realize the reduction of running cost.
In addition, when having the equipment (for example, the air separation plant shown in the label 11 among Fig. 1) of making rare gas element, can realize the miniaturization of this equipment, can cut down initial investment, and can cut down the power of this equipment, can realize the reduction of running cost.
In addition, in the above-described embodiment, illustrated that gasifying combined generating apparatus 50 is the situation of air blowing IGCC system, but be not defined in this, for example also can be made as oxygen blast IGCC system.
Need to prove, the present invention is not defined as above-mentioned embodiment, can suitably be out of shape as required/change enforcement.
Label declaration
1 Coal-disintegrating machine
The 3(coal dust is supplied with) hopper
4 vapourizing furnaces
30 coal gasifiers coal dust plenum system
31 reclaim under reduced pressure tanks (the first pressurized tank)
32 pressurized tank (the second pressurized tank)
50 gasifying combined generating apparatus
Claims (6)
1. coal gasifier coal dust plenum system possesses:
The coal dust feeding hopper is admitted by the coal dust after the Coal-disintegrating machine pulverizing;
The first pressurized tank, when described coal dust feeding hopper is admitted described coal dust, temporarily reclaim the part of the rare gas element of the inside that is filled in described coal dust feeding hopper, and this rare gas element that is recovered to inside is the described coal dust feeding hopper supply of atmospheric pressure state; And
The second pressurized tank, filling has the rare gas element that the internal pressure that makes described coal dust feeding hopper rises to the required pressure of specified pressure.
2. coal gasifier according to claim 1 coal dust plenum system, wherein,
Described coal dust feeding hopper arranges two at least, and when at least one coal dust feeding hopper was therein admitted described coal dust, other coal dust feeding hopper was supplied with described coal dust to vapourizing furnace.
3. coal gasifier according to claim 1 and 2 coal dust plenum system, wherein,
The capacity of described the first pressurized tank become described coal dust feeding hopper capacity 25% to 100%.
4. gasifying combined generating apparatus, it possesses each described coal gasifier coal dust plenum system in the claim 1～3.
5. a coal gasifier is with the method for operation of coal dust plenum system, and described coal gasifier possesses with the coal dust plenum system:
The coal dust feeding hopper is admitted by the coal dust after the Coal-disintegrating machine pulverizing;
The first pressurized tank, when described coal dust feeding hopper is admitted described coal dust, a temporary transient part that reclaims the rare gas element of the inside that is filled in described coal dust feeding hopper; And
The second pressurized tank, filling has the rare gas element that the internal pressure that makes described coal dust feeding hopper rises to the required pressure of specified pressure,
In the method for operation of described coal gasifier with the coal dust plenum system,
The rare gas element that will be reclaimed by described the first pressurized tank is that the described coal dust feeding hopper of atmospheric pressure state is filled to inside, afterwards, the rare gas element that is filled in described the second tank is filled to described coal dust feeding hopper.
6. coal gasifier according to claim 5 is with the method for operation of coal dust plenum system, wherein,
Described coal dust feeding hopper arranges two at least, and when at least one coal dust feeding hopper was therein admitted described coal dust, other coal dust feeding hopper was supplied with described coal dust to vapourizing furnace.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-040373 | 2011-02-25 | ||
| JP2011040373 | 2011-02-25 | ||
| PCT/JP2012/054008 WO2012115054A1 (en) | 2011-02-25 | 2012-02-20 | Fine coal powder supply system for coal gasification furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103328615A true CN103328615A (en) | 2013-09-25 |
Family
ID=46720831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012800064888A Pending CN103328615A (en) | 2011-02-25 | 2012-02-20 | Fine coal powder supply system for coal gasification furnace |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20130298465A1 (en) |
| JP (1) | JP5595581B2 (en) |
| CN (1) | CN103328615A (en) |
| WO (1) | WO2012115054A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106906005A (en) * | 2017-04-17 | 2017-06-30 | 航天长征化学工程股份有限公司 | Pulverized coal pressurized conveying device and method |
| CN109072780A (en) * | 2016-05-20 | 2018-12-21 | 三菱日立电力***株式会社 | The method of adjustment of the drying gas of carbonic solid fuels gasification power generation plant and its carbonic solid fuels |
| CN109847653A (en) * | 2019-01-21 | 2019-06-07 | 西安交通大学 | A kind of fuel combination pressurization continuous feeding system and method |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU92813B1 (en) * | 2015-09-02 | 2017-03-20 | Wurth Paul Sa | Enhanced pressurising of bulk material in lock hoppers |
| JP6742746B2 (en) * | 2016-02-08 | 2020-08-19 | 三菱日立パワーシステムズ株式会社 | Pressurization system for powder supply hopper, gasification equipment, gasification combined cycle power generation equipment, and pressurization method for powder supply hopper |
| JP7039795B2 (en) * | 2018-02-23 | 2022-03-23 | 三菱重工業株式会社 | Control method of powder supply hopper pressurizer, gasification furnace equipment and gasification combined cycle equipment, and powder supply hopper pressurizer |
| CN114276840B (en) * | 2021-12-30 | 2022-09-23 | 苏州海陆重工股份有限公司 | Coal powder gun alignment method for gasification furnace |
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| JPH1025483A (en) * | 1996-07-11 | 1998-01-27 | Babcock Hitachi Kk | Lock hopper apparatus and its operating method |
| CN201485431U (en) * | 2009-05-07 | 2010-05-26 | 湖北双环科技股份有限公司 | Powder coal gasification device at near normal pressure |
| CN101760243A (en) * | 2008-12-24 | 2010-06-30 | 山东华鲁恒升化工股份有限公司 | Three-phase multi-material three-dimensional pressurized clash coal gasification device and process thereof |
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| USRE31572E (en) * | 1971-05-06 | 1984-05-01 | The Babcock & Wilcox Company | Pulverized fuel delivery system for a blast furnace |
| DE2556957A1 (en) * | 1975-12-18 | 1977-06-30 | Otto & Co Gmbh Dr C | PLANT FOR GASIFICATION OF FINE GRAIN FUELS |
| JPS6319553U (en) * | 1986-07-24 | 1988-02-09 |
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2012
- 2012-02-20 WO PCT/JP2012/054008 patent/WO2012115054A1/en active Application Filing
- 2012-02-20 CN CN2012800064888A patent/CN103328615A/en active Pending
- 2012-02-20 US US13/980,932 patent/US20130298465A1/en not_active Abandoned
- 2012-02-20 JP JP2013501031A patent/JP5595581B2/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1025483A (en) * | 1996-07-11 | 1998-01-27 | Babcock Hitachi Kk | Lock hopper apparatus and its operating method |
| CN101760243A (en) * | 2008-12-24 | 2010-06-30 | 山东华鲁恒升化工股份有限公司 | Three-phase multi-material three-dimensional pressurized clash coal gasification device and process thereof |
| CN201485431U (en) * | 2009-05-07 | 2010-05-26 | 湖北双环科技股份有限公司 | Powder coal gasification device at near normal pressure |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109072780A (en) * | 2016-05-20 | 2018-12-21 | 三菱日立电力***株式会社 | The method of adjustment of the drying gas of carbonic solid fuels gasification power generation plant and its carbonic solid fuels |
| CN106906005A (en) * | 2017-04-17 | 2017-06-30 | 航天长征化学工程股份有限公司 | Pulverized coal pressurized conveying device and method |
| CN109847653A (en) * | 2019-01-21 | 2019-06-07 | 西安交通大学 | A kind of fuel combination pressurization continuous feeding system and method |
| CN109847653B (en) * | 2019-01-21 | 2020-10-27 | 西安交通大学 | Mixed fuel pressurization continuous feeding system and method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2012115054A1 (en) | 2014-07-07 |
| WO2012115054A1 (en) | 2012-08-30 |
| JP5595581B2 (en) | 2014-09-24 |
| US20130298465A1 (en) | 2013-11-14 |
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Application publication date: 20130925 |