CN104479747B - A kind of Processes and apparatus of producing synthesis gas from coal - Google Patents
A kind of Processes and apparatus of producing synthesis gas from coal Download PDFInfo
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- CN104479747B CN104479747B CN201410767882.4A CN201410767882A CN104479747B CN 104479747 B CN104479747 B CN 104479747B CN 201410767882 A CN201410767882 A CN 201410767882A CN 104479747 B CN104479747 B CN 104479747B
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- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
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- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/30—Fuel charging devices
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- 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
- C10J3/02—Fixed-bed gasification of lump fuel
- C10J3/20—Apparatus; Plants
- C10J3/34—Grates; Mechanical ash-removing devices
- C10J3/40—Movable grates
- C10J3/42—Rotary grates
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- 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
- C10J3/58—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels combined with pre-distillation of the fuel
- C10J3/60—Processes
- C10J3/64—Processes with decomposition of the distillation products
- C10J3/66—Processes with decomposition of the distillation products by introducing them into the gasification zone
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- 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
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
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- 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
- C10J3/72—Other features
- C10J3/86—Other features combined with waste-heat boilers
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- 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
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- 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
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- 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
- C10J2300/1615—Stripping
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Engineering & Computer Science (AREA)
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- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
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- Industrial Gases (AREA)
Abstract
The technique of a kind of producing synthesis gas from coal is the raw gas that broken coal passes through to extract out when drawing raw gas device (3) in the middle part of vaporizer volume ratio 5 60% after gasification, and the raw gas of scrubbed cooler I (5) enters waste heat boiler I (8) recovery waste heat；The residual volume raw gas than 40 95% is drawn by the gas passage III in dual pathways static state coal feeder (2), scrubbed cooler II (6) cooling raw gas raw gas (18) after condensed fluid isolated by gas-liquid separator (11) delivers to lower procedure, and the condensed fluid after washing is sent to gas liquor segregation apparatus (15) and reclaimed；The present invention has energy-conservation, and operating cost is low, coal dust drag-out is few, the advantage that the air water containing pitch coal is few.
Description
Technical field
The invention belongs to coal combustion gas, be specifically related to the Processes and apparatus of a kind of producing synthesis gas from coal.
Background technology
Crushed coal pressurized-gasification furnace is a kind of fixed bed coal gasifier, and owing to requiring low to feed coal, i.e. in addition to heavy caking coal, remaining coal can gasify, particularly low-order coal and the colm of high ash melting point.This gasification furnace is widely applied to coal synthesis ammonia, methanol, dimethyl ether, artificial oil and coal gas natural gas field.Along with current Coal Gasification Technology is towards major diameter, the direction of high pressure is developed, in unit interval, the treating capacity of coal is stepped up, coal lock is as the coal filling hole of crushed coal pressure gasifying, need ceaselessly to carry out punching press pressure release, the growth requirement of extensive coal gasification can not be met, the coal gasification ability that additionally high pressure makes improves, produce coal gas amount to increase, add the poor heat stability etc. of low-order coal, single gas exit necessarily takes substantial amounts of coal dust out of, follow-up gas washing is caused to cool down, the problem that the workshop sections such as Waste Heat Recovery result in blockage or separate difficulty, in washing process, use excessive water washing simultaneously, gas liquor generation amount is caused to increase, high-grade heat drop is low.
China Patent No. be 200580041975.8 patent disclose employing single coal lock, static distribution device has the fixed bed coal gasifier that Single gas exports, this gasification furnace is the crushed coal pressurized-gasification furnace commonly used at present, outstanding problem is that rough coal band of gas dirt problem is serious, the problems such as by-product low-pressure steam is many, and dust-laden air water content Han pitch coal is many.
Chinese patent: it is single coal lock that the patent of 201320037548.4 discloses employing, does not has static distribution device, Single gas passage, equally exists the problems referred to above.
Chinese patent: the patent of 201220582157.6 discloses a kind of two passage cloth device for coal for coal gasifier, by compositions such as coal entrance, gas exit, inner core, raw gas passage compositions.The purpose of this patent is to reduce coal gas enrichment area, reduces gas speed, reduces coal dust drag-out, have certain effect, but action effect is limited.
Chinese patent: 201320118045.X and 201220583000.5 discloses a kind of rotation rotatable fire grate with gas distributing cylinder, the former is used for gasification furnace diameter crushed coal pressurized-gasification furnace below 4.0 meters, the latter is used for the crushed coal pressurized-gasification furnace of 4.5 meters to 5.0 meters, the fire grate of both sizes can significantly improve the stability of coal gasification, but the problem that also can't resolve above-mentioned existence.
Summary of the invention
In order to overcome deficiency of the prior art, the technique that an object of the present invention is to provide a kind of producing synthesis gas from coal.
It is a further object of the present invention to provide a kind of coal lock punching press coal gas to recycle, consume low, middle increase coal gas ejector, make coal dust drag-out few, dust-laden and the few gasification furnace of pitch coal air water.
The technique of coal clean gas of the present invention comprises the steps:
(1) broken coal of 5-50mm is entered vaporizer top through connection double coal lock feed arrangement, after being uniformly distributed by dual pathways static state coal feeder, rely on action of gravity slowly to decline and from top to bottom through being dried, dry distilling, methanation, gasification and carbon residue burns each bed, gasifying agent enters bottom vaporizer through gasification agent inlet, pass through rotary fire grate, under the assosting effect of hot lime-ash, it is uniformly distributed in burning zone bed.In the process, ash is cooled to 300-400 DEG C, lime-ash floss hole discharge gasification furnace；Gasifying agent after preheating is upwardly through burning zone, and in burning zone, oxygen generates CO with remaining coal char combustion2, burning zone is the region that gasifier temperature is the highest, and other reactions for top provide heat, and along with hot gas rises through gasification layer along vaporizer, major part synthesis gas generates at this.Synthesis gas continuously rises to methanation layer, generating portion methane gas, methane gas and synthesis gas extract 5-60% out when drawing raw gas device in the middle part of methanation layer is by vaporizer, the raw gas of temperature 400-700 DEG C, the washing of scrubbed cooler I cools to temperature and is 380-600 DEG C, pressure is 3.0-6.0MPa, and after the dust content raw gas less than 1mg/L enters waste heat boiler recovery waste heat, temperature drops to 200-260 DEG C；
null(2) coal sample declined is heated by the raw gas of methanation layer residue 40-95% through dry distilling layer，Coal sample is made to decomposite the solid residue (coal tar) of rich carbon and containing gas、The hydrogen-rich volatile matter of steam and tar，Along with gas is further up，Volatile matter and synthesis gas from dry distillation area are cooled down further on gasification furnace top，Coal is then preheated and is dried，After drawing the temperature scrubbed cooler of the raw gas between 480-700 DEG C II eventually through the gas passage on the dual pathways static state coal feeder of vaporizer top, temperature is down to 200-210 DEG C，Then the raw gas dropping to 200-260 DEG C with temperature after waste heat boiler recovery waste heat mixes，Raw gas after gas-liquid separator separates goes out condensed fluid delivers to lower procedure，Gas liquor segregation apparatus gas recovery water sent to by washing condensed fluid；
(3) gas liquor of the dust-laden washed from scrubber cooler I enters bottom initial gross separation dirt and the water of waste heat boiler I, the gas liquor of major part not dust-laden returns to scrubber cooler I recycling after being pressurizeed by coal gas washing cycling water pump and supplementing Coal-gas Washing Water Using mixing, the gas liquor gas delivery water separation device gas recovery water of remaining dust-laden；The dust-laden washed from scrubber cooler II and the gas liquor also gas delivery water separation device gas recovery water of oil；After gas liquor segregation apparatus isolates dirt and oil, the gas liquor of isolated is returned to scrubber cooler II recycling by water circulating pump pressurization；
(4) needed for waste heat boiler I, boiler feedwater is to send into waste heat boiler I after boiler feedwater water pump is pressurized to 4.0MPa-6.0MPa to produce the mesohigh steam that temperature is more than 200 DEG C.
In order to realize the purpose of the present invention, invent broken coal to add and press dry ash discharge gasification furnace, it includes connecting double coal lock feed arrangement and body of heater, connection double coal lock feed arrangement is had on body of heater, upper of furnace body has dual pathways static state coal feeder, extraction raw gas device in the middle part of vaporizer is had in the middle part of body of heater, lower portion of furnace body has rotation furnace grill, gasification agent inlet and lime-ash floss hole is had at bottom of furnace body, gasification agent inlet is between rotation furnace grill and lime-ash floss hole, and gasification agent inlet is connected with the gas distributing cylinder in rotation furnace grill.
One, described connection double coal lock feed arrangement, it includes that coal lock, coal lock valve, the lower valve of coal lock, coal feed point, transitional storehouse and coal outlet, coal lock has 2, and each coal lock top is coal feed point, it is that coal locks valve below coal feed point, coal lock bottom communicates with connecting tube top, valve under connecting tube top is locked equipped with coal, is connected with transitional storehouse bottom connecting tube, the bottom of transitional storehouse is coal outlet, is connected by least 1 coal lock gas passage between 2 coal locks.
Described coal lock gas passage is made up of two ends coal lock gas passage expanding reach and middle coal lock gas passage straight section, at coal lock gas passage straight section built with connecting coal lock access valve, being positioned at coal lock gas passage expanding reach and lock the baffle plate being provided with aperture on wall connector with coal, coal lock gas passage expanding reach wall is 30-60 ° with the angle α of coal lock wall.
Described baffle plate percent opening is between 45-65%, and the aperture of aperture is 0.2-1.0 millimeter.
Described coal lock gas passage position between 0.45-0.55 times of whole coal lock height.
Connection double coal lock feed arrangement as above so that coal lock gas recycles, and recycling rate reaches more than 60%.
Two, described dual pathways static state coal feeder is entered the 1st passage of vaporizer by dual pathways static state coal feeder coal sample entrance, inner core, coal sample, and coal sample enters the 2nd passage and the raw gas passage composition of vaporizer, and concrete structure is shown in Chinese patent 201220582157.6.
Dual pathways static state coal feeder as above can also use double gas passages of symmetry, 50% is increased than single gas passage area, add the coal gas of the gas passage extraction 30-60% adding symmetry in the middle part of vaporizer, reduce 65-80% compared with the flow velocity of raw gas outlet in prior art, significantly reduce the carrying amount of dust in coal gas.
Three, it includes gasification furnace outer wall to draw raw gas device in the middle part of described vaporizer, gasification stove internal wall and gas passage, gasification furnace outer wall and gasification stove internal wall have the gas passage of at least 2, gas passage is uniformly distributed in gasification furnace outer wall same level, the opening upwards of gas passage, gas passage is made up of gas passage outer wall and gas passage inwall, gas passage outer wall is connected with gasification furnace outer wall, and become the angle β of 30-45 degree, gas passage inwall is connected with gasification stove internal wall, the baffle plate of aperture it is provided with in the junction, upper middle part of gas passage inwall Yu gasification stove internal wall, baffle plate is parallel with gasification stove internal wall.
Described gas passage is metering from bottom vaporizer in the position of gasification stove internal wall, is 0.41-0.62 times of vaporizer height.
The percent opening of described baffle plate is between 30-40%, and small aperture is 4-8 millimeter.
Described baffle plate is 1/10-1/3 circle.
Described gas passage has 2-6.
The gas temperature that the gas passage in the middle part of vaporizer that middle part as above is symmetrical is extracted out is high, and by-product middle pressure steam promotes steam quality.
Four, described rotation furnace grill includes gas distributing cylinder fixing above supporter, gas distributing cylinder is positioned at the centrage of supporter, gas distributing cylinder has central gasifying agent central canal, there is bell jar on gas distributing cylinder top, it it is gasifying agent passage in fire grate between gas distributing cylinder and bell jar, supporter is fixed on hollow rotating bottom support body, hollow rotating supporter top is fixed with center rest and rotatable grate plate, rotatable stove plate is 5 Rotating fields or 6 Rotating fields of 5 layers of gas distribution of 4 layers of gas distribution, concrete structure is shown in Chinese patent 201320118045.X or 201220583000.5.
GASIFIER GRATES BY METALLOGRAPHIC EXAMINATIONS as above, is i.e. provided with the rotation furnace grill of a gas distributing cylinder, it is ensured that gasifying agent is uniformly distributed, and is formed and stablizes fire bed, it is ensured that gasification furnace runs steadily in the long term.
Beneficial effects of the present invention
1) use dual pathways coal feeder to make coal sample arrange evenly, advantageously form stable fire bed.
2) third channel of dual pathways coal feeder has enough circulation areas, uses again the dual pathways, significantly reduces the flow velocity of gas exit, reduces the band dirt problem of raw gas, reduces the particle diameter of as-fired coal.
3) draw gasification layer gasification in the middle part of vaporizer and generate the coal gas without tar, it is mainly composed of methane, hydrogen, carbon monoxide and carbon dioxide, reducing the flow velocity of top gas exit simultaneously, moreover it is possible to utilize the coal gas of high temperature of 450-650 DEG C to produce the middle pressure steam of higher quality in waste heat boiler.
4) double coal lock connects, coal lock gas recycling, and minimizing coal is locked punching press and used fresh coal gas amount, also possible for promoting vaporization ability offer one.
5) enforcement of this invention can substantially reduce top of gasification furnace dust-laden and pitch coal tolerance, reduces dust-laden and the treating capacity of pitch coal air water.
Accompanying drawing explanation
Accompanying drawing explanation
Fig. 1 is the process schematic representation of the present invention.
Fig. 2 is that the present invention connects double coal lock feed arrangement 1 front view.
Fig. 3 is that the connection double coal lock device 1 of Fig. 2 faces operation figure.
Fig. 4 is that the A of Fig. 2 coal lock gas passway baffle plate is to figure.
Fig. 5 is dual pathways static state coal feeder 2 front view.
Fig. 6 is dual pathways static state coal feeder 2 left view.
Fig. 7 is extraction raw gas device 3 front view in the middle part of vaporizer.
Fig. 8 is that the A of Fig. 7 gas passage mouth baffle plate is to structural representation.
Fig. 9 is rotation furnace grill structural representation.
As shown in the figure, 1-connects double coal lock feed arrangement, 2-dual pathways static state coal feeder, draws raw gas device in the middle part of 3-vaporizer, 4-rotation furnace grill, 5-scrubber cooler I, 6-scrubber cooler II, 7-washings circulating pump, 8-waste heat boiler I, 9-boiler feedwater water pump, 10-washs gas liquor circulating pump, 11-raw gas separator, 12-gasification agent inlet, 13-ash discharging hole, 14-supplements Coal-gas Washing Water Using, 15-gas liquor segregation apparatus, 16-mesohigh steam, 17-waste heat boiler feeds water, and 18-is through the raw gas of separator, 19-dust-laden air water Han pitch coal
null101-double coal lock，Coal lock in left side in 101a-double coal lock，Coal lock in right side in 101b-double coal lock，102-coal locks valve，In 102a-double coal lock, left side coal locks valve，In 102b-double coal lock, right side coal locks valve，The lower valve of 103-coal lock，The lower valve of left side coal lock in 103a-double coal lock，The lower valve of right side coal lock in 103b-double coal lock，104-transitional storehouse，105-coal lock gas passage，106-connects coal lock access valve，107-connects pipeline section，Pipeline section is connected on the left of 107a-，Pipeline section is connected on the right side of 107b-，108-coal stopper plate，109-coal stopper plate aperture，110-coal lock gas passage expanding reach，111-coal lock gas passage straight section，112-coal lock gas passage expanding reach and coal lock the angle α of outer wall，113-coal outlet，114-coal feed point
201-stay bolt part, the straight tube of 202-inner core, the conically shaped of 203-inner core, 204-conical sleeve, 205-straight sleeve, 206-static distribution device straight sleeve overhead gage, aperture on 207-static distribution device straight sleeve, 208-raw gas exports, 210-gasification furnace outer wall, 211-gasification stove internal wall, 212-dual pathways coal feeder coal sample entrance, I-coal sample the 1st cloth coal channel, II-coal sample the 2nd cloth coal channel, III-raw gas passage
Symmetrical gas passage in the middle part of 301-vaporizer, 302-baffle plate, 303-aperture, the open section of 304-baffle plate bottom, 305-gasification furnace outer wall, 306-gasification stove internal wall, the angle that the gas passage in the middle part of 307-vaporizer is formed with gasification furnace outer wall, gas passage inwall in the middle part of vaporizer in the middle part of 308-vaporizer, the gas passage outer wall in the middle part of 309-vaporizer.
401-gasifying agent flow-guiding channel, 402-upper support ring, 403-the first qi-emitting hole, 404-the second qi-emitting hole, 405-the first grate plate, 406-the 3rd qi-emitting hole, 407-the second grate plate, 408-the 4th qi-emitting hole, 409-the 3rd grate plate, 410-the 4th grate plate, 411-the 5th grate plate, 412-gas distributing cylinder, 413-central authorities gasifying agent central canal, 414-supporter, 415-center rest, 416-bell jar, 417-midfoot support body, 418-bottom support body, 419-voltage stabilizing locular wall.
Detailed description of the invention
Further illustrate the present invention below by specific embodiment it should be understood that, these embodiments are only used in more detail, specifically describe and be used, and are not to be construed as limiting in any form the present invention.
This part to used in the present invention to material and test method carry out general description.Although being to it is known in the art that still the present invention still describes in detail as far as possible at this for realizing many materials used in the present invention and operational approach.It will be apparent to those skilled in the art that within a context, if not specified, material therefor of the present invention and operational approach are well known in the art.
Below in conjunction with accompanying drawing, the detailed description of the invention of the present invention is done more detailed description.
Embodiment 1
Broken coal adds and press dry ash discharge gasification furnace, it includes connecting double coal lock feed arrangement 1 and body of heater, connection double coal lock feed arrangement 1 is had on body of heater, upper of furnace body has dual pathways static state coal feeder 2, extraction raw gas device 3 in the middle part of vaporizer is had in the middle part of body of heater, lower portion of furnace body has rotation furnace grill 4, gasification agent inlet 12 and lime-ash floss hole 13 is had at bottom of furnace body, gasification agent inlet 12 is between rotation furnace grill 4 and lime-ash floss hole 13, and gasification agent inlet 12 is connected with the gas distributing cylinder 412 in rotation furnace grill 4.
One, described connection double coal lock feed arrangement 1, it includes that coal lock 101, coal lock valve 102, the lower valve 103 of coal lock, coal feed point 114, transitional storehouse 104 and coal outlet 113, coal lock 101 has 2, it is coal feed point 114 that each coal locks 101 tops, it is that coal locks valve 102 below coal feed point 114, communicate with connecting tube 107 top bottom coal lock 101, valve 103 under connecting tube 107 top is locked equipped with coal, it is connected with transitional storehouse 104 bottom connecting tube 107, the bottom of transitional storehouse 104 is coal outlet 113, is connected by 1 coal lock gas passage 105 between 2 coal locks 101.
Described coal lock gas passage 105 is made up of two ends coal lock gas passage expanding reach 110 and middle coal lock gas passage straight section 111, at coal lock gas passage straight section 111 built with connecting coal lock access valve 106, it is positioned at coal lock gas passage expanding reach 110 to lock with coal) it is provided with the baffle plate 108 of aperture 109 on wall connector, the angle α 112 that coal lock gas passage expanding reach 110 wall and coal lock 101 walls is 48 degree.
Described baffle plate 108 percent opening is 49%, and the aperture of aperture 109 is 0.2 millimeter.
Described coal lock gas passage 105 is positioned at the position of 0.48 times of whole coal lock height.
nullDouble coal lock feed arrangement 1 described above realizes alternation by following steps: the lower valve 103a of the coal lock corresponding when coal lock 101a is in atmospheric pressure state is closed，After coal in coal bunker is added normal pressure coal lock 101a，Close corresponding coal and lock valve 102a，Another coal lock 101b sends into vaporizer through 104 coals of transitional storehouse under gravity simultaneously、After coal sample all sends into vaporizer，This coal lock 101b is filled with high pressure gas，Now close the lower valve 103b of coal lock of this coal lock，Coal lock access valve (106 is connected between the high pressure coal lock 101b and the normal pressure coal lock 101a having loaded coal sample that open full coal gas，Treat that two coal lock 101a and 101b pressure are equal，Close and connect two coal lock 101a and 101b connection coal lock access valves 106，Then pull out the coal gas in the coal lock 101b the most not coaling，Coal lock 101b is made to coaling after normal pressure，Two coal lock 101a and 101b alternations，Carry out the filling of coal sample，Coal lock gas more than 60% recycles.
nullTwo、The inner core of described dual pathways static state coal feeder 2 is made up of straight tube 202 and conically shaped 203，The top of straight tube 202 is opening，Straight tube 202 is connected with conically shaped 203 small end，It is fixed with mitriform sleeve on the top of straight tube 202，Mitriform sleeve is made up of conical sleeve 204 and straight sleeve 205，Straight sleeve 205 diameter is less than the outside diameter of conical sleeve 204，Straight sleeve 205 outer wall is fixed with plate washer 206，The free end of baffle plate 206 is downward，Straight sleeve 205 wall of plate washer 206 position is provided with aperture 207，Gas exit and stay bolt part 201，Raw gas passage III is formed between mitriform sleeve and inner core，The straight tube 202 of inner core enters the 1st passage I of gasification furnace for coal,Form coal between mitriform sleeve and gasification stove internal wall and enter the 2nd passage II of gasification furnace.Dual pathways static state coal feeder 2 can also use double gas passages III of symmetry.
Above-mentioned dual pathways static state coal feeder 2 realizes uniform coal distributor by following steps: enter coal dual pathways static state coal feeder 2 in vaporizer of vaporizer, this coal feeder is made up of the straight tube 202 of inner core and the conically shaped 203 of inner core, define the channel structure of coal sample, a coal sample part is made to enter gasification furnace by the 1st passage I, another part enters the 2nd passage II of gasification furnace and enters gasification furnace by forming coal between mitriform sleeve and gasification stove internal wall, so reaches uniform coal sample and arranges.The coal gas that gasification produces draws gasification furnace by forming raw gas passage III between mitriform sleeve and inner core.
nullThree、Raw gas device 3 is drawn in the middle part of described vaporizer，It includes gasification furnace outer wall 305、Gasification stove internal wall 306 and gas passage 301，Gasification furnace outer wall 305 and gasification stove internal wall 306 have the gas passage 301 of 2，Gas passage 301 is uniformly distributed in gasification furnace outer wall 305 same level,The opening upwards of gas passage 301，Gas passage 301 is made up of gas passage outer wall 309 and gas passage inwall 308，Gas passage outer wall 309 is connected with gasification furnace outer wall 305，And become the angle β 307 of 42 degree，Gas passage inwall 308 is connected with gasification stove internal wall 306，The baffle plate 302 of aperture 303 it is provided with in the junction, upper middle part of gas passage inwall 308 with gasification stove internal wall 306，Baffle plate 302 is parallel with gasification stove internal wall 306.
Gas passage 301 is metering from bottom vaporizer in the position of gasification stove internal wall 306, is 0.41 times of vaporizer height.The percent opening of baffle plate 302 is between 30, and aperture 303 aperture is 8 millimeters.Baffle plate 302 is 1/3 circle.
Four, rotation furnace grill 4 includes the most fixing gas distributing cylinder 412 of supporter 414, gas distributing cylinder 412 is positioned at the centrage of supporter 414, gas distributing cylinder 412 has central gasifying agent central canal 413, there is bell jar 416 on gas distributing cylinder top, it it is gasifying agent passage in fire grate between gas distributing cylinder 412 and bell jar 416, supporter 414 is fixed on hollow rotating bottom support body 418, hollow rotating supporter 418 top is fixed with center rest 415 and rotatable grate plate, and rotatable stove plate is 5 Rotating fields of 4 layers of gas distribution.It is followed successively by the first grate plate 405 from top to bottom, second grate plate 407,3rd grate plate 409, five layers of fire grate structure of 4 layers of gas distribution of the 4th grate plate 410 and the 5th grate plate 411, it is positioned at the upper support above the first grate plate 405 for supporting upper support ring 402 and voltage stabilizing locular wall 419.A gasifying agent flow-guiding channel 401 is formed between two grate plates, gasifying agent is by gasifying agent the first qi-emitting hole 403 opened on the upper support ring 402 under grate plate, second qi-emitting hole 404,3rd qi-emitting hole 406,4th qi-emitting hole 408 uniformly enters gasifying agent flow-guiding channel 401, carries out heat exchange subsequently into gasification furnace and lime-ash.
The low-order coal using aqueous 35% gasifies, and vapor pressure is 4.0MPa, gasification temperature 1050 DEG C, and it is 5-50mm coal sample that coal sample obtains particle diameter after crushing, sieving, and loading coal bunker is that raw material is got in gasification ready, is then implemented by following steps:
The broken coal of 5-50mm enters vaporizer top through connection double coal lock feed arrangement 1, after being uniformly distributed by dual pathways static state coal feeder 2, rely on action of gravity slowly to decline and from top to bottom through being dried, dry distilling, methanation, gasification and carbon residue burns each bed.Gasifying agent enters bottom vaporizer through gasification agent inlet 12, by rotation furnace grill 4, under the assosting effect of hot lime-ash, is uniformly distributed in burning zone bed.In the process, ash is cooled to 320 DEG C, lime-ash floss hole 13 discharge gasification furnace；Gasifying agent after preheating is upwardly through burning zone, and in burning zone, oxygen generates CO with remaining coal char combustion2, burning zone is the region that gasifier temperature is the highest, and other reactions for top provide heat, and along with hot gas rises through gasification layer along vaporizer, major part synthesis gas generates at this.Synthesis gas continuously rises to methanation layer, generating portion methane gas, methane gas and synthesis gas extract 58% out when drawing raw gas device 3 in the middle part of methanation layer is by vaporizer, the raw gas that temperature is 570 DEG C, it is 500 DEG C that the washing of scrubbed cooler I 5 cools to temperature, pressure is 3.8MPa, and after the dust content raw gas less than 1mg/L enters waste heat boiler I 8 recovery waste heat, temperature drops to 230 DEG C.
The coal sample declined is heated by the raw gas of methanation layer residue 42% through dry distilling layer, coal sample is made to decomposite the solid residue (coal tar) of rich carbon and containing gas, steam and the hydrogen-rich volatile matter of tar, along with gas is further up, volatile matter and synthesis gas from dry distillation area are cooled down further on gasification furnace top, and coal is then preheated and is dried.Draw, eventually through the gas passage III on vaporizer top dual pathways static state coal feeder device 2, the raw gas that temperature raw gas between 230 DEG C drops to 220 DEG C with temperature after waste heat boiler I 8 recovery waste heat to mix, raw gas 18 after condensed fluid isolated by gas-liquid separator 11 delivers to lower procedure, and gas liquor segregation apparatus 15 gas recovery water sent to by washing condensed fluid.
The gas liquor of the dust-laden washed from scrubber cooler I 5 enters bottom initial gross separation dirt and the water of waste heat boiler I 8 with coal gas, major part dust-laden gas liquor returns to scrubber cooler I 5 after being pressurizeed by coal gas washing cycling water pump 7 and supplementing Coal-gas Washing Water Using mixing and recycles, the gas liquor gas delivery water separation device 15 of remaining dust-laden.
After the gas liquor gas delivery water separation device 15 of the dust-laden washed from scrubber cooler II 6 and oil separates dirt and oil, gas liquor is returned to scrubber cooler I 6 by water circulating pump 11 pressurization and recycles.
Needed for waste heat boiler I 8, boiler feedwater 17 is to send into waste heat boiler I 8 after low-pressure boiler feedwater water pump 9 is pressurized to 5.2MPa to produce the mesohigh steam 16 that temperature is more than 200 DEG C.
Embodiment 2
Using the smokeless coal gasification of aqueous 6%, vapor pressure is 5.0MPa, gasification temperature 1250 DEG C, and it is 5-50mm coal sample that coal sample obtains particle diameter after crushing, sieving, and loading coal bunker is that raw material is got in gasification ready, is then implemented by following steps:
The broken coal of 5-50mm enters vaporizer top through connection double coal lock feed arrangement 1, after being uniformly distributed by dual pathways static state coal feeder 2, rely on action of gravity slowly to decline and from top to bottom through being dried, dry distilling, methanation, gasification and carbon residue burns each bed.Gasifying agent enters bottom vaporizer through gasification agent inlet 12, by rotation furnace grill 4, under the assosting effect of hot lime-ash, is uniformly distributed in burning zone bed.In the process, ash is cooled to 390 DEG C, lime-ash floss hole 13 discharge gasification furnace；Gasifying agent after preheating is upwardly through burning zone, and in burning zone, oxygen generates CO with remaining coal char combustion2, burning zone is the region that gasifier temperature is the highest, and other reactions for top provide heat, and along with hot gas rises through gasification layer along vaporizer, major part synthesis gas generates at this.Synthesis gas continuously rises to methanation layer, generating portion methane gas, methane gas and synthesis gas extract 36% out when drawing raw gas device 3 in the middle part of methanation layer is by vaporizer, the raw gas that temperature is 690 DEG C, it is 580 DEG C that the washing of scrubbed cooler I 5 cools to temperature, pressure is 5.8MPa, and after the dust content raw gas less than 1mg/L enters waste heat boiler 8 recovery waste heat, temperature drops to 245 DEG C.
The coal sample declined is heated by the raw gas of methanation layer residue 64% through dry distilling layer, coal sample is made to decomposite the solid residue (coal tar) of rich carbon and containing gas, steam and the hydrogen-rich volatile matter of tar, along with gas is further up, volatile matter and synthesis gas from dry distillation area are cooled down further on gasification furnace top, and coal is then preheated and is dried.Draw, eventually through the gas passage III on vaporizer top dual pathways static state coal feeder 2, the raw gas that temperature raw gas between 290 DEG C drops to 258 DEG C with temperature after waste heat boiler 8 recovery waste heat to mix, raw gas 18 after condensed fluid isolated by gas-liquid separator 11 delivers to lower procedure, and gas liquor segregation apparatus 15 gas recovery water sent to by washing condensed fluid.
The gas liquor of the dust-laden washed from scrubber cooler I 5 enters bottom initial gross separation dirt and the water of waste heat boiler 8 with coal gas, major part dust-laden gas liquor returns to scrubber cooler I 5 after being pressurizeed by coal gas washing cycling water pump 7 and supplementing Coal-gas Washing Water Using mixing and recycles, and the gas liquor of remaining dust-laden is delivered coal gas-water separation unit.
The dust-laden washed from scrubber cooler II 6 is delivered coal after gas-water separation unit separates dirt and oil with the gas liquor of oil, and gas liquor is returned to scrubber cooler II 6 by circulating pump 11 pressurization and recycles.
Needed for waste heat boiler I 8, boiler feedwater 18 is to send into waste heat boiler 9 after low-pressure boiler feedwater water pump 9 is pressurized to 4.0MPa-6.0MPa to produce the mesohigh steam 17 that temperature is more than 200 DEG C.
Nucleus equipment crushed coal pressurized-gasification furnace implementation process is:
Connection double coal lock device has 1 to symmetrical coal lock gas passage 105, the position between the 0.52 of vaporizer height it is metered into from coal valve 103 under locking, coal lock gas passage is by the coal stopper plate 108 arranged on coal lock gas passway, the coal stopper plate aperture 109 opened on baffle plate, expanding reach 110, straight section 111 and valve 106 form, and the angle 112 that expanding reach 110 becomes with coal lock outer wall is 45 degree, the percent opening of baffle plate is between 52%, and the aperture of the coal stopper plate aperture 109 on coal stopper plate is 0.5 millimeter.
By being provided with 3 gas passages 301 in the middle part of gasification furnace, extracting the raw gas of 36% out, gas passage 301 is metering from bottom vaporizer in the position of gasification stove internal wall 306, is 0.41 times of vaporizer height.Angle 307 is 35 degree, and the percent opening of baffle plate is 6.4 millimeters in 34% aperture (303) aperture, and baffle plate 302 is 1/6 circle, and remaining 64% raw gas is drawn by gas passage III through vaporizer top after dry distilling and drying layer.Remaining is with embodiment 1.
Embodiment 3
The para bituminous coal using aqueous 20% gasifies, and vapor pressure is 5.4MPa, gasification temperature 1150 DEG C, and it is 5-50mm coal sample that coal sample obtains particle diameter after crushing, sieving, and loading coal bunker is that raw material is got in gasification ready, is then gasified by following steps:
The broken coal of 5-50mm enters vaporizer top through connection double coal lock feed arrangement 1, after being uniformly distributed by dual pathways static state coal feeder 2, rely on action of gravity slowly to decline and from top to bottom through being dried, dry distilling, methanation, gasification and carbon residue burns each bed.Gasifying agent enters bottom vaporizer through gasification agent inlet 12, by rotation furnace grill 4, under the assosting effect of hot lime-ash, is uniformly distributed in burning zone bed.In the process, ash is cooled to 300-400 DEG C, lime-ash floss hole 13 discharge gasification furnace；Gasifying agent after preheating is upwardly through burning zone, and in burning zone, oxygen generates CO with remaining coal char combustion2, burning zone is the region that gasifier temperature is the highest, and other reactions for top provide heat, and along with hot gas rises through gasification layer along vaporizer, major part synthesis gas generates at this.Synthesis gas continuously rises to methanation layer, generating portion methane gas, methane gas and synthesis gas extract 5% out when drawing raw gas device 3 in the middle part of methanation layer is by vaporizer, the raw gas that temperature is 630 DEG C, it is 540 DEG C that the washing of scrubbed cooler I 5 cools to temperature, pressure is 5.2MPa, and after the dust content raw gas less than 1mg/L enters waste heat boiler 8 recovery waste heat, temperature drops to 235 DEG C.
The coal sample declined is heated by the raw gas of methanation layer residue 95% through dry distilling layer, coal sample is made to decomposite the solid residue (coal tar) of rich carbon and containing gas, steam and the hydrogen-rich volatile matter of tar, along with gas is further up, volatile matter and synthesis gas from dry distillation area are cooled down further on gasification furnace top, and coal is then preheated and is dried.Draw, eventually through the gas passage III on vaporizer top dual pathways static state coal feeder 2, the raw gas that temperature raw gas between 260 DEG C drops to 235 DEG C with temperature after waste heat boiler 8 recovery waste heat to mix, raw gas 18 after condensed fluid isolated by gas-liquid separator 11 delivers to lower procedure, and gas liquor segregation apparatus 15 gas recovery water sent to by washing condensed fluid.
The gas liquor of the dust-laden washed from scrubber cooler I 5 enters bottom initial gross separation dirt and the water of waste heat boiler 8 with coal gas, major part dust-laden gas liquor returns to scrubber cooler I 5 after being pressurizeed by coal gas washing cycling water pump 7 and supplementing Coal-gas Washing Water Using mixing and recycles, and the gas liquor of remaining dust-laden is delivered coal gas-water separation unit.
After the gas liquor gas delivery water separation device 15 of the dust-laden washed from scrubber cooler II 6 and oil separates dirt and oil, gas liquor is returned to scrubber cooler II 6 by water circulating pump 10 pressurization and recycles.
Needed for waste heat boiler I 8, boiler feedwater 17 is to send into waste heat boiler I 8 after low-pressure boiler feedwater water pump 9 is pressurized to 6.0MPa to produce the mesohigh steam 16 that temperature is more than 200 DEG C.
Nucleus equipment crushed coal pressurized-gasification furnace implementation process is:
The double coal lock device of connection has 1 coal lock gas passage 105, the position between the 0.46 of vaporizer height it is metered into from coal valve 103 under locking, coal lock gas passage is by the coal stopper plate 108 arranged on coal lock gas passway, the coal stopper plate aperture 109 opened on coal stopper plate, expanding reach 110, straight section 111 and valve 106 form, and the angle 112 that expanding reach 110 becomes with coal lock outer wall is 33°, the percent opening of coal stopper plate is between 63%, and the aperture of coal stopper plate aperture 109 is 0.8 millimeter.
By being provided with 4 gas passages 301 in the middle part of vaporizer, extracting the raw gas of 5% out, in the middle part of vaporizer, gas passage 301 position of gasification stove internal wall 306 in the middle part of vaporizer is metering from bottom vaporizer, 0.45 times of vaporizer height.Angle 307 is 32 degree, and the percent opening of baffle plate is 32%, and aperture 303 aperture is 4.4 millimeters, and baffle plate 302 is 1/9 circle, and remaining 95% raw gas is drawn by gas passage III through vaporizer top after dry distilling and drying layer.Remaining is with embodiment 1.
Claims (13)
1. the technique of a producing synthesis gas from coal, it is characterised in that comprise the steps:
(1) broken coal of 5-50mm is entered vaporizer top through connection double coal lock feed arrangement (1),
After being uniformly distributed by dual pathways static state coal feeder (2), action of gravity is relied on slowly to decline and warp from top to bottom
Cross be dried, dry distilling, methanation, gasification and carbon residue burn each bed, gasifying agent is through gasification agent inlet (12)
Entering bottom vaporizer, by rotary fire grate (4), ash is cooled to 300-400 DEG C, by lime-ash floss hole (13)
Discharge gasification furnace；Gasifying agent after preheating is upwardly through burning zone, and in burning zone, oxygen fires with remaining coal tar
Burn and generate CO2, along with hot gas rises through gasification layer along vaporizer, major part synthesis gas generates at this, closes
Gas is become to continuously rise to methanation layer, generating portion methane gas, methane gas and synthesis gas at methanation layer
Extraction 5-60% during by drawing raw gas device (3) in the middle part of vaporizer, the raw gas of temperature 400-700 DEG C,
The washing of scrubbed cooler I (5) cools to temperature and is 380-600 DEG C, and pressure is 3.0-6.0MPa, powder
After the dust content raw gas less than 1mg/L enters waste heat boiler (8) recovery waste heat, temperature drops to 200-260 DEG C；
(2) coal sample declined is heated by the raw gas of methanation layer residue 40-95% through dry distilling layer,
Coal sample is made to decomposite the solid residue of rich carbon and containing gas, steam and the hydrogen-rich volatile matter of tar, along with gas
Body is further up, and volatile matter and synthesis gas from dry distillation area are cooled down further on gasification furnace top,
Coal is then preheated and is dried, eventually through the coal gas on vaporizer top dual pathways static state coal feeder (2)
Passage is drawn the temperature scrubbed cooler of the raw gas between 480-700 DEG C II (6) temperature afterwards and is down to
200-210 DEG C, then drop to the raw gas of 200-260 DEG C with temperature after waste heat boiler (8) recovery waste heat
Mixing, the raw gas (18) after condensed fluid isolated by gas-liquid separator (11) is delivered to lower procedure, is washed
Wash condensed fluid and send to gas liquor segregation apparatus (15) gas recovery water；
(3) gas liquor of the dust-laden washed from scrubber cooler I (5) enters waste heat boiler I (8)
Bottom initial gross separation dirt and water, the gas liquor of major part not dust-laden by coal gas washing cycling water pump (7) pressurize
Return to scrubber cooler I (5) with supplementary Coal-gas Washing Water Using (14) after mixing recycle, remaining dust-laden
Gas liquor gas delivery water separation device (15) gas recovery water；Wash from scrubber cooler II (6)
Dust-laden and oil gas liquor also gas delivery water separation device (15) gas recovery water；Gas liquor segregation apparatus
(15), after isolating dirt and oil, the gas liquor of isolated is returned to washing by water circulating pump (10) pressurization
Cooler II (6) recycles；
(4) needed for waste heat boiler I (8), boiler feedwater (17) is to pressurize through boiler feedwater water pump (9)
After 4.0MPa-6.0MPa send into waste heat boiler I (8) produce temperature be more than 200 DEG C mesohigh steaming
Vapour (16).
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 1 uses adds and press dry ash discharge gasification furnace,
It is characterized in that it includes connecting double coal lock feed arrangement (1) and body of heater, on body of heater, have connection double coal lock
Feed arrangement (1), upper of furnace body has dual pathways static state coal feeder (2), has in the middle part of vaporizer and draw in the middle part of body of heater
Going out raw gas device (3), lower portion of furnace body has rotation furnace grill (4), has gasification agent inlet (12) at bottom of furnace body
With lime-ash floss hole (13), gasification agent inlet (12) be positioned at rotation furnace grill (4) and lime-ash floss hole 13 it
Between, gasification agent inlet (12) is connected with the gas distributing cylinder (412) in rotation furnace grill (4)；
Described connection double coal lock feed arrangement (1), it includes, and coal locks (101), coal locks valve (102),
The lower valve (103) of coal lock, coal feed point (114), transitional storehouse (104) and coal outlet (113), coal lock (101)
Having 2, each coal lock (101) top is coal feed point (114), and coal feed point (114) lower section is that coal is locked
Valve (102), coal lock (101) bottom communicates with connecting tube (107) top, at connecting tube (107) top
Equipped with the lower valve (103) of coal lock, connecting tube (107) bottom is connected with transitional storehouse (104), transitional storehouse (104)
Bottom be coal outlet (113), by least 1 coal lock gas passage (105) between 2 coals lock (101)
It is connected.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 2 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described coal lock gas passage (105) be by two ends coal lock gas passage expanding reach (110) and in
Between coal lock gas passage straight section (111) composition, logical built with connecting coal lock at coal lock gas passage straight section (111)
Road valve (106), be positioned at coal lock gas passage expanding reach 110 and coal lock be provided with on (1) wall connector little
The baffle plate (108) in hole (109), coal lock gas passage expanding reach (110) wall and coal lock the angle of (101) wall
α (112) is 30-60 °.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 3 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described baffle plate (108) percent opening between 45-65%, the aperture of aperture (109) is
0.2-1.0 millimeter.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 3 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described coal lock gas passage (105) is between 0.45-0.55 times of whole coal lock height
Position.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 3 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described dual pathways static state coal feeder (2) by dual pathways static state coal feeder coal sample entrance (212),
Inner core, coal sample enter vaporizer the 1st passage (I), coal sample enter vaporizer the 2nd passage (II) with
And raw gas passage (III) composition.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 6 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described dual pathways static state coal feeder (2) uses symmetrical double gas passages (III).
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 2 uses adds and press dry ash discharge gasification furnace,
It is characterized in that in the middle part of described vaporizer draw raw gas device (3) it include gasification furnace outer wall (305),
Gasification stove internal wall (306) and gas passage (301), at gasification furnace outer wall (305) and gasification stove internal wall (306)
On have the gas passage (301) of at least 2, gas passage (301) gasification furnace outer wall (305) with
Being uniformly distributed on one horizontal plane, the opening upwards of gas passage (301), gas passage (301) is led to by coal gas
Pipeline outer wall (309) and gas passage inwall (308) composition, outside gas passage outer wall (309) is with gasification furnace
Wall (305) connects, and becomes the angle β (307) of 30-45 degree, gas passage inwall (308) and gasification
Stove inwall (306) connects, and connects at the upper middle part of gas passage inwall (308) with gasification stove internal wall (306)
The place of connecing is provided with the baffle plate (302) of aperture (303), and baffle plate (302) is put down with gasification stove internal wall (306)
OK.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 8 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described gas passage (301) is from the bottom of vaporizer in the position of gasification stove internal wall (306)
Metering is played in portion, is 0.41-0.62 times of vaporizer height.
The broken coal that the technique of a kind of producing synthesis gas from coal the most as claimed in claim 8 uses adds and press dry ash discharge gasification furnace,
It is characterized in that the percent opening of described baffle plate (302) between 30-40%, aperture (303) aperture is 4-8
Millimeter.
The broken coal that the technique of 11. a kind of producing synthesis gas from coal as claimed in claim 8 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described baffle plate (302) is 1/10-1/3 circle.
The broken coal that the technique of 12. a kind of producing synthesis gas from coal as claimed in claim 8 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described gas passage (1) has 2-6.
The broken coal that the technique of 13. a kind of producing synthesis gas from coal as claimed in claim 2 uses adds and press dry ash discharge gasification furnace,
It is characterized in that described rotation furnace grill (4) includes the gas distributing cylinder that supporter (414) is fixing above
(412), gas distributing cylinder (412) is positioned at the centrage of supporter (414), gas distributing cylinder (412)
Having central gasifying agent central canal (413), there are bell jar (416), gas distributing cylinder (412) in gas distributing cylinder top
And it is gasifying agent passage in fire grate between bell jar (416), during supporter (414) is fixed on
Empty rotating base supporter (418), hollow rotating supporter (418) top is fixed with center rest (415)
With rotatable grate plate, rotatable stove plate is 5 Rotating fields or 6 Rotating fields of 5 layers of gas distribution of 4 layers of gas distribution.
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