CN204848781U - Coal gasification equipment - Google Patents
Coal gasification equipment Download PDFInfo
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- CN204848781U CN204848781U CN201420836589.4U CN201420836589U CN204848781U CN 204848781 U CN204848781 U CN 204848781U CN 201420836589 U CN201420836589 U CN 201420836589U CN 204848781 U CN204848781 U CN 204848781U
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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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- 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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Abstract
The utility model belongs to a coal gasification equipment, include that the coal gasification takes place system, circulating air system, circulating water system and heat recovery and steam generation system, coal gasification emergence system includes the gasifier, the cyclone who links to each other with the gasifier, a plurality of waste heat boiler who links to each other with cyclone, the water wash column that links to each other with a plurality of waste heat boiler, the circulating air system includes recycle gas compressor, recycle gas compressor's one end links to each other with the synthetic gas export pipeline of water wash column, and recycle gas compressor's the other end and the inside quench of gasifier are encircled, reasonable in design has, coal strong adaptability, and coal gasification efficiency is high, but the gas production is big and a large amount of high -pressure steam of by -product, is fit for the production of maximizing, and can improves energy utilization's advantage.
Description
Technical field
The utility model belongs to pressurization bed pulverized coal gasification technology field, and it is strong to be specifically related to a kind of coal adaptability, and gasification efficiency is high, can a large amount of high pressure steam of by-product, is applicable to the coal gasification apparatus produced that maximizes.
Background technology
Coal Gasification Technology is the core tap technology of all Chemical Industries, no matter be IGCC thermoelectricity Poly-generation, or coal liquifaction, coal preparing natural gas, olefin hydrocarbon making by coal and coal synthesis ammonia and other Chemicals, the gasification production equipment technology of high-efficiency cleaning must make its production cost significantly reduce.
Due to the various pressurized coal gasification technology run at present, no matter adopt coal-water slurry gasification also or dry coal powder gasification technique, the recycling of heat after gasification reaction, it is all the key factor affecting vapourizing furnace efficiency, and the synthetic gas after current gasification reaction is according to chilling process, energy utilization efficiency is low; According to existing useless Pot devices, flying dust easily blocks useless pot and makes device often need parking maintenance, brings very large loss to enterprise.Therefore enterprise is more and more stronger for a kind of demand of the new and effective useless pan gas metallization processes device that can solve the problem.
Utility model content
The purpose of this utility model is to overcome defect of the prior art and provides a kind of reasonable in design, coal adaptability is strong, and gasification efficiency is high, and gas production rate is large and can a large amount of high pressure steam of by-product, be applicable to maximizing and produce, and the coal gasification apparatus of capacity usage ratio can be improved.
The purpose of this utility model be achieved in that comprise gasification generation systems, cycle gas system, circulating water unify energy recovery and steam generating system,
A, gasification generation systems comprise vapourizing furnace, the cyclonic separator be connected with vapourizing furnace, several waste heat boilers be connected with cyclonic separator, the water wash column be connected with several waste heat boilers;
B, cycle gas system comprise recycle gas compressor, and one end of described recycle gas compressor is connected with the syngas outlet pipeline of water wash column, the other end of recycle gas compressor and the chilling ring of vapourizing furnace inside;
C, circulating water system comprises flash tank and detritus pool, the water-in of flash tank by the first reducing valve respectively with vapourizing furnace water outlet, cyclonic separator water outlet, several waste heat boiler water outlets are connected with water wash column water outlet, the water outlet of flash tank is connected with the water-in of detritus pool bottom by the second reducing valve, the water outlet on detritus pool top by pump respectively at the first water ring in vapourizing furnace, the second water ring in cyclonic separator, several waste heat boiler water-ins are connected with water wash column water-in, the top of described flash tank is provided with the low-pressure steam outlet of band valve,
D, energy recovery and steam generating system comprise de-salted water storage tank, the water outlet of de-salted water storage tank by drum water-in and drum water outlet respectively with the first water wall, the pipeline of the first band water wall, second water wall, the pipeline of the second band water wall, several the first band water wall baffle plates are connected with the water-in of several the second band water wall baffle plates, first water wall, the pipeline of the first band water wall, second water wall, the pipeline of the second band water wall, several the first band water wall baffle plates are connected with drum steam inlet respectively with the steam outlet of several the second band water wall baffle plates, drum steam outlet is connected with steam using appts.
Described vapourizing furnace comprises body skin and is located at multiple burners at body skin top, the internal upper part of described body skin is provided with combustion chamber, multiple burner through body skin and combustion chamber top and be connected with the inside of combustion chamber, the bottom of combustion chamber is connected with Cu Zha separate chamber by fire-resistant downtake, described Cu Zha separate chamber is made up of the first water wall, the bottom of Cu Zha separate chamber is connected with thick slag settling pocket by pipeline, the bottom of described thick slag settling pocket is provided with vapourizing furnace water outlet, the bottom of thick slag settling pocket is provided with vapourizing furnace slag notch, the inside of described fire-resistant downtake is provided with chilling ring, pipeline between described Cu Zha separate chamber and thick slag settling pocket is provided with the first water ring, the first protection of inert gas chamber is provided with between described body skin and Cu Zha separate chamber, the inwall of described combustion chamber is provided with refractory liner, the side of described Cu Zha separate chamber is connected with the inlet mouth of cyclonic separator inside by the pipeline of the first band water wall.
Described cyclonic separator comprises cyclonic separator shell, described cyclonic separator shell internal upper part is provided with fine ash from room, described fine ash is made up of from room the second water wall, fine ash is provided with from the top of room the air outlet be connected with waste heat boiler inlet mouth, fine ash is connected with thin grey collecting chamber from the bottom of room by decline cylinder, described cyclonic separator shell and fine ash are provided with the second protection of inert gas chamber between room, the internal upper part of described decline cylinder is provided with the second water ring, the bottom of described thin grey collecting chamber is provided with cyclonic separator water outlet, described fine ash is from the pipeline being provided with the second band water wall between air outlet, room and waste heat boiler inlet mouth.
Described several waste heat boilers series connection, the inlet mouth of its first waste heat boiler is connected with the air outlet of cyclonic separator, and the air outlet of its last waste heat boiler is connected with the inlet mouth of water wash column, waste heat boiler comprises waste heat boiler housing, the internal upper part of waste heat boiler housing is provided with several the first band water wall baffle plates, the inner bottom part of described waste heat boiler housing is provided with supporting leg, the top of supporting leg is provided with several the second band water wall baffle plates, described first band water wall baffle plate and second is with water wall baffle plate to be staggered, the bottom of supporting leg offers limbers, the side of described waste heat boiler housing is provided with air outlet, the bottom of waste heat boiler is provided with waste heat boiler water-in and waste heat boiler water outlet, the height of described waste heat boiler water-in is greater than the height of waste heat boiler water outlet.
Described water wash column comprises water wash column shell, the top of water wash column shell is provided with syngas outlet pipeline, water wash column enclosure top is provided with wire gauzee filter, the bottom of wire gauzee filter is provided with several staggered tower trays, the middle part of water wash column shell is provided with the inlet mouth of water wash column, the bottom of water wash column shell is provided with water wash column water outlet, and the water wash column shell between wire gauzee filter and tower tray offers water wash column water-in.
The gas that the inside in described first protection of inert gas chamber and the second protection of inert gas chamber is filled is one of nitrogen or carbonic acid gas.
Described waste heat boiler is at least two.
The length of described first band water wall baffle plate is less than the length of waste heat boiler, and the length sum of supporting leg and the second band water wall baffle plate is less than the length of waste heat boiler; In described waste heat boiler, the liquid level of bottom is greater than the height of limbers.
The utility model is by arranging the first water wall, the pipeline of the first band water wall, second water wall, the pipeline of the second band water wall, several first band water wall baffle plates and several the second band water wall baffle plates effectively reduce body skin making full use of while heat energy prepares high pressure steam, wind separator shell, connect pipeline between Cu Zha separate chamber and cyclonic separator and the material requirement of pipeline between cyclonic separator and waste heat boiler, greatly reduce the investment of enterprise to cost, the risk of waste heat boiler blocking greatly can be reduced by the Cu Zha separate chamber and cyclonic separator arranging vapourizing furnace, effectively can improve the cycle of operation of equipment and improve the service efficiency of equipment, and having reasonable in design, coal adaptability is strong, and gasification efficiency is high, and gas production rate is large and can a large amount of high pressure steam of by-product, is applicable to maximizing and produces, and can improve the advantage of capacity usage ratio.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model vapourizing furnace;
Fig. 3 is the structural representation of the utility model cyclonic separator;
Fig. 4 is the structural representation of the utility model waste heat boiler;
Fig. 5 is the structural representation of the utility model water wash column;
Fig. 6 is the structural representation of the utility model energy recovery and steam generating system.
Embodiment
As a shown in Figure 6, the utility model is coal gasification apparatus, comprises gasification generation systems, cycle gas system, circulating water unify energy recovery and steam generating system,
A, gasification generation systems comprise vapourizing furnace 1, the cyclonic separator 2 be connected with vapourizing furnace 1, several waste heat boilers 3 be connected with cyclonic separator 2, the water wash column 4 be connected with several waste heat boilers 3;
B, cycle gas system comprise recycle gas compressor 5, and one end of described recycle gas compressor 5 is connected with the syngas outlet pipeline of water wash column 4, the other end of recycle gas compressor 5 and the chilling ring 16 of vapourizing furnace 1 inside;
C, circulating water system comprises flash tank 6 and detritus pool 7, the water-in of flash tank 6 by the first reducing valve 43 respectively with vapourizing furnace water outlet 14, cyclonic separator water outlet 28, several waste heat boiler water outlets 37 are connected with water wash column water outlet 41, the water outlet of flash tank 6 is connected with the water-in of detritus pool 7 bottom by the second reducing valve 44, the water outlet on detritus pool 7 top passes through pump 45 respectively at the first water ring 17 in vapourizing furnace 1, the second water ring 27 in cyclonic separator 2, several waste heat boiler water-ins 36 are connected with water wash column water-in 42, the top of described flash tank 6 is provided with the low-pressure steam outlet 12 of band valve,
D, energy recovery and steam generating system comprise de-salted water storage tank 43, the water outlet of de-salted water storage tank 43 by drum water-in 44 and drum water outlet 45 respectively with the first water wall 20, the pipeline 29 of the first band water wall, second water wall 26, the pipeline 30 of the second band water wall, several the first band water wall baffle plates 32 are connected with the water-in of several the second band water wall baffle plates 34, first water wall 20, the pipeline 29 of the first band water wall, second water wall 26, the pipeline 30 of the second band water wall, several the first band water wall baffle plates 32 are connected with drum steam inlet 46 respectively with the steam outlet of several the second band water wall baffle plates 34, drum steam outlet 47 is connected with steam using appts 22.
As shown in Figure 2, described vapourizing furnace 1 comprises body skin 8 and is located at multiple burners 10 at body skin 8 top, the internal upper part of described body skin 8 is provided with combustion chamber 9, multiple burner 10 through body skin 8 and combustion chamber 9 top and be connected with the inside of combustion chamber 9, the bottom of combustion chamber 9 is connected with Cu Zha separate chamber by fire-resistant downtake 11, described Cu Zha separate chamber is made up of the first water wall 20, the bottom of Cu Zha separate chamber is connected with thick slag settling pocket 13 by pipeline, the bottom of described thick slag settling pocket 13 is provided with vapourizing furnace water outlet 14, the bottom of thick slag settling pocket 13 is provided with vapourizing furnace slag notch 15, the inside of described fire-resistant downtake 11 is provided with chilling ring 16, pipeline between described Cu Zha separate chamber and thick slag settling pocket 13 is provided with the first water ring 17, the first protection of inert gas chamber 18 is provided with between described body skin 8 and Cu Zha separate chamber, the inwall of described combustion chamber 9 is provided with refractory liner 19, the side of described Cu Zha separate chamber is connected with the inlet mouth of cyclonic separator 2 inside by the pipeline 29 of the first band water wall.
As shown in Figure 3, described cyclonic separator 2 comprises cyclonic separator shell 21, described cyclonic separator shell 21 internal upper part is provided with fine ash from room, described fine ash is made up of from room the second water wall 26, fine ash is provided with from the top of room the air outlet be connected with waste heat boiler 3 inlet mouth, fine ash is connected with thin grey collecting chamber 24 from the bottom of room by decline cylinder 23, described cyclonic separator shell 21 and fine ash are provided with the second protection of inert gas chamber 25 between room, the internal upper part of described decline cylinder 23 is provided with the second water ring 27, the bottom of described thin grey collecting chamber 24 is provided with cyclonic separator water outlet 28, described fine ash is from the pipeline 30 being provided with the second band water wall between air outlet, room and waste heat boiler 3 inlet mouth.
As shown in Figure 4, several waste heat boilers 3 described are connected, and the inlet mouth of its first waste heat boiler 3 is connected with the air outlet of cyclonic separator, and the air outlet of its last waste heat boiler 3 is connected with the inlet mouth of water wash column 4, waste heat boiler 3 comprises waste heat boiler housing 31, the internal upper part of waste heat boiler housing 31 is provided with several the first band water wall baffle plates 32, the inner bottom part of described waste heat boiler housing 31 is provided with supporting leg 33, the top of supporting leg 33 is provided with several the second band water wall baffle plates 34, described first band water wall baffle plate 32 and second is with water wall baffle plate 34 to be staggered, the bottom of supporting leg 33 offers limbers 35, the side of described waste heat boiler housing 31 is provided with air outlet, the bottom of waste heat boiler 3 is provided with waste heat boiler water-in 36 and waste heat boiler water outlet 37, the height of described waste heat boiler water-in 36 is greater than the height of waste heat boiler water outlet 37.
As shown in Figure 5, described water wash column 4 comprises water wash column shell 38, the top of water wash column shell 38 is provided with syngas outlet pipeline, water wash column shell 38 inner upper is provided with wire gauzee filter 39, the bottom of wire gauzee filter 39 is provided with several staggered tower trays 40, the middle part of water wash column shell 38 is provided with the inlet mouth of water wash column 4, and the bottom of water wash column shell 38 is provided with water wash column water outlet 41, and the water wash column shell 38 between wire gauzee filter 39 and tower tray 40 offers water wash column water-in 42.
The gas that the inside in described first protection of inert gas chamber 18 and the second protection of inert gas chamber 25 is filled is one of nitrogen or carbonic acid gas.
Described waste heat boiler 3 is at least two.
The length of described first band water wall baffle plate 32 is less than the length of waste heat boiler 3, and the length sum of supporting leg 33 and the second band water wall baffle plate 34 is less than the length of waste heat boiler 3; In described waste heat boiler, the liquid level of bottom is greater than the height of limbers 35.Heisui River in described waste heat boiler 3 is by the bottom unrestricted flow of limbers 35 at waste heat boiler 3.
The utility model is by arranging the first water wall 20, the pipeline 29 of the first band water wall, second water wall 26, the pipeline 30 of the second band water wall, several the first band water wall baffle plates 32 and several the second band water wall baffle plates 34 effectively reduce body skin 8 making full use of while heat energy prepares high pressure steam, wind separator shell 21, connect pipeline between Cu Zha separate chamber and cyclonic separator 2 and the material requirement of pipeline between cyclonic separator 2 and waste heat boiler 3, greatly reduce the investment of enterprise to cost, the risk of waste heat boiler blocking effectively can be reduced by arranging Cu Zha separate chamber in vapourizing furnace and cyclonic separator 2, the cycle of operation of raising equipment and the service efficiency of raising equipment, the utility model adopts oxygen in lieu of air as oxygenant and under high pressure carries out oxidizing fire reaction, and gasification efficiency is high, is wherein provided with multiple burner, can increase gas production rate large, the utility model can adopt coal dust and coal water slurry etc. as raw material simultaneously, and therefore coal adaptability is strong.
A technique for coal gasification apparatus, comprises the steps:
Step one, gasification raw material is mixed after enter vapourizing furnace 1 by multiple burner 10 combustion chamber 9 in burn, described above-mentioned burning, under 4.0 ~ 8.7MPa high pressure, is carried out under the environment of 1200 ~ 1600 DEG C, recycle gas compressor 5 is sent in chilling ring 16 after being compressed by the synthetic gas of the syngas outlet pipeline of water wash column 4, the water outlet on detritus pool 7 top makes Heisui River enter the first water ring 17 in vapourizing furnace 1, the second water ring 27 in cyclonic separator 2, several waste heat boiler water-ins 36 and water wash column water-in 42 by pump 45 respectively, the Heisui River of vapourizing furnace water outlet 14, cyclonic separator water outlet 28, several waste heat boiler water outlets 37 and water wash column water outlet 41 enters in flash tank 6 respectively by the first reducing valve 43, and the Heisui River in flash tank 6 enters in detritus pool 7 by the water-in of the water outlet of flash tank 6, the second reducing valve 44 and detritus pool 7 bottom, de-salted water in de-salted water storage tank 43 is by de-salted water storage tank 43 water outlet, drum water-in 44 and drum water outlet 45 enter and the first water wall 20 respectively, the pipeline 29 of the first band water wall, second water wall 26, the pipeline 30 of the second band water wall, several the first band water wall baffle plates 32 are with in several the second band water wall baffle plates 34, first water wall 20, the pipeline 29 of the first band water wall, second water wall 26, the pipeline 30 of the second band water wall, the steam of several the first band water wall baffle plates 32 and several the second band water wall baffle plates 34 enters in steam using appts 22 respectively by drum steam inlet 46 and drum steam outlet 47, one of described gasification raw material is: raw coal powder, oxygen and steam, two of described gasification raw material is: coal water slurry and steam,
Step 2, make the thin ash of the synthetic gas of the gasification raw material described in step one after the combustion of combustion chamber 9, slag and slag enter through fire-resistant downtake 11 to enter in Cu Zha separate chamber, slag enters in thick slag settling pocket 13 by pipeline, and synthetic gas and the thin ash of slag are with the pipeline 29 of water wall to enter in cyclonic separator 2 by first; Synthetic gas after recycle gas compressor 5 makes compression enters fire-resistant downtake 11 and synthetic gas, the thin ash of slag and slag hybrid cooling by chilling ring 16, nitrogen or carbonic acid gas is full of in first protection of inert gas chamber 18, spray water through the first water ring 17 before described slag enters thick slag settling pocket 13 and slag lowered the temperature again, and slag is rinsed to thick slag settling pocket 13;
Step 3, make described in step 2, to enter thick slag settling pocket 13 slag and discharge vapourizing furnace 1 by slag notch 15;
Step 4, make to enter described in step 2 synthetic gas in cyclonic separator 2 and the thin ash of slag enters fine ash from indoor, the thin ash of synthetic gas and slag is separated from indoor at fine ash, synthetic gas and the thin ash of a small amount of slag enter in primary waste heat boiler by fine ash from the air outlet, top of room and the pipeline 30 of the second band water wall, the thin ash of slag enters in thin grey collecting chamber 24 by decline cylinder 23, the thin ash of slag is lowered the temperature and humidification by the 27 pairs of thin ashes of slag of the second water ring during decline cylinder 23, and rinses to thin grey collecting chamber 24 by thin for slag ash;
Step 5, make to enter described in step 4 the air outlet that the second band water wall baffle plate 34 that synthetic gas in primary waste heat boiler and the thin ash of a small amount of slag walk around the first band water wall baffle plate 32 and band supporting leg 33 enters primary waste heat boiler; The thin ash of described slag is separated in the Heisui River of primary waste heat boiler inner bottom part further;
Step 6: make to enter in secondary waste heat boiler by the synthetic gas of the air outlet of primary waste heat boiler and the thin ash of a small amount of slag described in step 5, synthetic gas is walked around the first band water wall baffle plate 32 and is with second of supporting leg 33 the band water wall baffle plate 34 to enter the air outlet of secondary waste heat boiler; The thin ash of described slag is separated in the Heisui River of secondary waste heat boiler inner bottom part further;
Step 7: make to enter in water wash column 4 by the synthetic gas of the air outlet of secondary waste heat boiler described in step 6, synthetic gas enters syngas outlet pipeline by tower tray 40 and wire gauzee filter 39, and in synthetic gas, isolated Heisui River enters the bottom of water wash column 4;
After described step one enters flash tank 6 to the Heisui River in step 7, the low-pressure steam flashed off is discharged the outer battery limit (BL) of supply by low-pressure steam outlet 12 and is used.Cycle gas system in described step one, circulating water are unified energy recovery and steam generating system circular flow always, move to step 7 through step one, gasification generation systems by step one to step 7 circular flow, the thin ash of synthetic gas in described step 2 after burning, slag and slag enter through fire-resistant downtake 11, and to enter its synthetic gas temperature in Cu Zha separate chamber be 800 ~ 1000 DEG C, when described synthetic gas and the thin ash of slag are with the pipeline 29 of water wall to enter cyclonic separator 2 by first, the synthetic gas temperature in the pipeline 29 of the first band water wall is 800 ~ 1000 DEG C, when in described step 4, synthetic gas and the thin ash of slag enter fine ash from indoor, fine ash is 700 ~ 900 DEG C from the synthetic gas temperature of indoor, when synthetic gas and the thin ash of a small amount of slag enter primary waste heat boiler by fine ash from the air outlet, top of room and the pipeline 30 of the second band water wall, synthetic gas temperature in the pipeline 30 of the second band water wall is 700 ~ 900 DEG C, when in described step 5, synthetic gas and the thin ash of a small amount of slag are walked around the first band water wall baffle plate 32 and are with second of supporting leg 33 the band water wall baffle plate 34 to enter the air outlet of primary waste heat boiler, air outlet synthetic gas temperature is 450 ~ 500 DEG C, when in described step 6, synthetic gas and the thin ash of a small amount of slag are walked around the first band water wall baffle plate 32 and are with second of supporting leg 33 the band water wall baffle plate 34 to enter the air outlet of secondary waste heat boiler, air outlet synthetic gas temperature is 350 ~ 400 DEG C, after in described step 7, synthetic gas is exported by water wash column 4, outlet syngas temperatures is 230 ~ 250 DEG C, and clean synthetic gas sends battery limit (BL) for hypomere operation.
A series of detailed description listed is above only illustrating for feasibility embodiment of the present utility model; they are also not used to limit protection domain of the present utility model, all do not depart from the utility model skill equivalent implementations of doing of spirit or change all should be included within protection domain of the present utility model.
It is to be noted in this article, " first ", " second " etc. only for differentiation each other, but not represent they significance level and order etc.In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, connect integratedly, also can be removably connect; Also can be the connection of two element internals; Can be directly be connected, also indirectly can be connected by intermediary, for the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
Claims (8)
1. a coal gasification apparatus, comprises gasification generation systems, cycle gas system, circulating water unifies energy recovery and steam generating system, it is characterized in that:
A, gasification generation systems comprise vapourizing furnace (1), the cyclonic separator (2) be connected with vapourizing furnace (1), several waste heat boilers (3) be connected with cyclonic separator (2), the water wash column (4) be connected with several waste heat boilers (3);
B, cycle gas system comprise recycle gas compressor (5), one end of described recycle gas compressor (5) is connected with the syngas outlet pipeline of water wash column (4), the chilling ring (16) of the other end of recycle gas compressor (5) and vapourizing furnace (1) inside;
C, circulating water system comprises flash tank (6) and detritus pool (7), the water-in of flash tank (6) by the first reducing valve (43) respectively with vapourizing furnace water outlet (14), cyclonic separator water outlet (28), several waste heat boiler water outlets (37) are connected with water wash column water outlet (41), the water outlet of flash tank (6) is connected with the water-in of detritus pool (7) bottom by the second reducing valve (44), the water outlet on detritus pool (7) top passes through pump (45) respectively at the first water ring (17) in vapourizing furnace (1), the second water ring (27) in cyclonic separator (2), several waste heat boiler water-ins (36) are connected with water wash column water-in (42), the top of described flash tank (6) is provided with the low-pressure steam outlet (12) of band valve,
D, energy recovery and steam generating system comprise de-salted water storage tank (43), the water outlet of de-salted water storage tank (43) by drum water-in (44) and drum water outlet (45) respectively with the first water wall (20), the pipeline (29) of the first band water wall, second water wall (26), the pipeline (30) of the second band water wall, several first bands water wall baffle plate (32) are connected with the water-in of several the second bands water wall baffle plate (34), first water wall (20), the pipeline (29) of the first band water wall, second water wall (26), the pipeline (30) of the second band water wall, several first bands water wall baffle plate (32) are connected with drum steam inlet (46) respectively with the steam outlet of several the second bands water wall baffle plate (34), drum steam outlet (47) is connected with steam using appts (22).
2. coal gasification apparatus according to claim 1, it is characterized in that: described vapourizing furnace (1) comprises body skin (8) and is located at multiple burners (10) at body skin (8) top, the internal upper part of described body skin (8) is provided with combustion chamber (9), multiple burner (10) through body skin (8) and combustion chamber (9) top and be connected with the inside of combustion chamber (9), the bottom of combustion chamber (9) is connected with Cu Zha separate chamber by fire-resistant downtake (11), described Cu Zha separate chamber is made up of the first water wall (20), the bottom of Cu Zha separate chamber is connected with thick slag settling pocket (13) by pipeline, the bottom of described thick slag settling pocket (13) is provided with vapourizing furnace water outlet (14), the bottom of thick slag settling pocket (13) is provided with vapourizing furnace slag notch (15), the inside of described fire-resistant downtake (11) is provided with chilling ring (16), pipeline between described Cu Zha separate chamber and thick slag settling pocket (13) is provided with the first water ring (17), the first protection of inert gas chamber (18) is provided with between described body skin (8) and Cu Zha separate chamber, the inwall of described combustion chamber (9) is provided with refractory liner (19), the side of described Cu Zha separate chamber is connected by the inlet mouth that the pipeline (29) of the first band water wall is inner with cyclonic separator (2).
3. coal gasification apparatus according to claim 1, it is characterized in that: described cyclonic separator (2) comprises cyclonic separator shell (21), described cyclonic separator shell (21) internal upper part is provided with fine ash from room, described fine ash is made up of from room the second water wall (26), fine ash is provided with from the top of room the air outlet be connected with waste heat boiler (3) inlet mouth, fine ash is connected with thin grey collecting chamber (24) from the bottom of room by decline cylinder (23), described cyclonic separator shell (21) and fine ash are provided with the second protection of inert gas chamber (25) between room, the internal upper part of described decline cylinder (23) is provided with the second water ring (27), the bottom of described thin grey collecting chamber (24) is provided with cyclonic separator water outlet (28), described fine ash is from the pipeline (30) being provided with the second band water wall between air outlet, room and waste heat boiler (3) inlet mouth.
4. coal gasification apparatus according to claim 1, it is characterized in that: described several waste heat boilers (3) series connection, the inlet mouth of its first waste heat boiler (3) is connected with the air outlet of cyclonic separator, and the air outlet of its last waste heat boiler (3) is connected with the inlet mouth of water wash column (4), waste heat boiler (3) comprises waste heat boiler housing (31), the internal upper part of waste heat boiler housing (31) is provided with several the first bands water wall baffle plate (32), the inner bottom part of described waste heat boiler housing (31) is provided with supporting leg (33), the top of supporting leg (33) is provided with several the second bands water wall baffle plate (34), described first band water wall baffle plate (32) is with water wall baffle plate (34) to be staggered with second, the bottom of supporting leg (33) offers limbers (35), the side of described waste heat boiler housing (31) is provided with air outlet, the bottom of waste heat boiler (3) is provided with waste heat boiler water-in (36) and waste heat boiler water outlet (37), the height of described waste heat boiler water-in (36) is greater than the height of waste heat boiler water outlet (37).
5. coal gasification apparatus according to claim 1, it is characterized in that: described water wash column (4) comprises water wash column shell (38), the top of water wash column shell (38) is provided with syngas outlet pipeline, water wash column shell (38) inner upper is provided with wire gauzee filter (39), the bottom of wire gauzee filter (39) is provided with several staggered tower trays (40), the middle part of water wash column shell (38) is provided with the inlet mouth of water wash column (4), the bottom of water wash column shell (38) is provided with water wash column water outlet (41), water wash column shell (38) between wire gauzee filter (39) and tower tray (40) offers water wash column water-in (42).
6. coal gasification apparatus according to Claims 2 or 3, is characterized in that: the gas that the inside in described first protection of inert gas chamber (18) and the second protection of inert gas chamber (25) is filled is one of nitrogen or carbonic acid gas.
7. coal gasification apparatus according to claim 4, is characterized in that: described waste heat boiler (3) is at least two.
8. coal gasification apparatus according to claim 4, it is characterized in that: the length of described first band water wall baffle plate (32) is less than the length of waste heat boiler (3), and the length sum of supporting leg (33) and the second band water wall baffle plate (34) is less than the length of waste heat boiler (3); In described waste heat boiler, the liquid level of bottom is greater than the height of limbers (35).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420836589.4U CN204848781U (en) | 2014-12-26 | 2014-12-26 | Coal gasification equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420836589.4U CN204848781U (en) | 2014-12-26 | 2014-12-26 | Coal gasification equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498101A (en) * | 2014-12-26 | 2015-04-08 | 河南心连心化肥有限公司 | Coal gasification device and process |
| CN110819391A (en) * | 2019-11-20 | 2020-02-21 | 张俊霞 | Device for producing hydrogen by coupling SOFC (solid oxide fuel cell) tail gas with biomass gasification and use method of device |
-
2014
- 2014-12-26 CN CN201420836589.4U patent/CN204848781U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498101A (en) * | 2014-12-26 | 2015-04-08 | 河南心连心化肥有限公司 | Coal gasification device and process |
| CN110819391A (en) * | 2019-11-20 | 2020-02-21 | 张俊霞 | Device for producing hydrogen by coupling SOFC (solid oxide fuel cell) tail gas with biomass gasification and use method of device |
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