CN204198699U - A kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system - Google Patents
A kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system Download PDFInfo
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- CN204198699U CN204198699U CN201420626931.8U CN201420626931U CN204198699U CN 204198699 U CN204198699 U CN 204198699U CN 201420626931 U CN201420626931 U CN 201420626931U CN 204198699 U CN204198699 U CN 204198699U
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Abstract
The utility model provides a kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system, comprises Venturi scrubber, water-bath separating tank and washing tower.First crude synthesis gas from vapourizing furnace shock chamber enters washing tower again and purifies further after the ash disposal of water-bath separating tank.Wherein Venturi scrubber is arranged on the outer side surface of water-bath separating tank, and Venturi scrubber communicates with the downtake of water-bath separating tank inside, is provided with moisturizing shower above downtake, and downtake head is distributed with multiple posticum.Device of the present utility model can improve the dedusting effect of crude synthesis gas, reduces the quantity of ash disposal equipment used, reduces costs.
Description
Technical field
The utility model belongs to gasification field, especially relates to a kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system.
Background technology
Gasification is the important channel of clean coal utilization, and this technology has adapted to the Sustainable development requirement of China's economy, and development in recent years is rapid.The principle of Coal Gasification Technology is exactly coal, coal tar or refinery coke and vaporized chemical (air, oxygen, water vapour, hydrogen etc.) issue biochemical reaction in certain temperature and pressure, is coal gas by the organic matter transformation in coal, coal tar or refinery coke.
Typical Coal Gasification Technology comprises fixed bed, fluidized-bed, air flow bed three kinds.Wherein the efficiency of carbon conversion of airflow bed gasification furnace is high, and liquid lime-ash is easily discharged, and is easy to amplify, and coal adaptability is wide, is the development trend of future coal gasification.Contain a large amount of dust from airflow bed gasification furnace crude synthesis gas out, just can enter lower procedure after having to pass through udst separation and use.
At present, main air-flow bed coal-gasification technique has shell (Shell) fine coal gasification process, siemens (GSP) fine coal gasification process, Texaco (Texaco) water coal slurry pressure gasification process etc.What Shell adopted is useless pot type flow process, is introduced into waste heat boiler cooling, the steam of by-product high-grade from vapourizing furnace crude synthesis gas out; The flying dust carried secretly from waste heat boiler crude synthesis gas is out collected by High Temperature High Pressure porcelain filter and is stored, and by lock hopper system unload again by after air lift and cooling, delivers to flying dust storage grain or outward transport; Crude synthesis gas after ash disposal is again through Venturi scrubber, washing tower washing.GSP crude synthesis gas treatment system comprises two-stage Venturi scrubber, level portion condenser and washing tower.Texaco adopts carbon to wash the synthetic gas dedusting of tower autopneumatolysis in the future stove, and its carbon washes the complicated structure of tower, and the Heisui River solid content of discharge is high, easy blocking pipeline.
The major defect that existing crude synthesis gas ash handling equipment exists has: dedusting effect is not good; Required equipment is many, expends large.
Utility model content
The purpose of this utility model is to provide the crude synthesis gas ash handling equipment of the higher entrained-flow coal gasification system of a kind of efficiency.
Device of the present utility model comprises Venturi scrubber, water-bath separating tank and washing tower, wherein Venturi scrubber is arranged on the outer side surface of water-bath separating tank, water-bath separating tank is connected with washing tower by synthetic gas transport pipe, one end of synthetic gas transport pipe is arranged on the top of water-bath separating tank, the other end is arranged on washing tower side lower wall, Venturi scrubber communicates with the downtake of water-bath separating tank inside, moisturizing shower is provided with above downtake, downtake head extends in water-bath, and downtake head is distributed with multiple posticum.
Be directly installed on by Venturi scrubber on water-bath separating tank, communicate with the downtake of water-bath separating tank inside, this structure shortens the path of the crude synthesis gas after wetting, avoids the bonding of ash content in pipeline and deposition, thus avoids line clogging.Crude synthesis gas after Venturi scrubber washing passes into downtake, and the ash particles in downtake mutually bonds, increases, and is sprayed in the water-bath bottom water-bath separating tank by the posticum on downtake head.Downtake head is distributed with multiple posticum, buck is after described posticum at a high speed ejection, and ash content and water adhesion sedimentation, through moisturizing shower spray again after leaving water-bath containing the synthetic gas of a small amount of ash content, ash content in further trapping synthetic gas, the synthetic gas after spray ash disposal enters water wash column again.Moisturizing shower spray ash disposal while also for the moisturizing of water-bath separating tank.
Further, Venturi scrubber is arranged on 1/2 to 2/3 place of straight section height outside water-bath separating tank.
The diameter of downtake can amplify at head place, and the area summation of the posticum that head distributes equals the sectional area of downtake.The equilibrium of velocity in pipes can be ensured like this, increase downtake head jet velocity simultaneously, increase the contact area of ash content and water, be conducive to the sedimentation of ash content.
Downtake head is right cylinder or cone.When decline tube head is right cylinder, its side and bottom surface are distributed with multiple posticum, and this right cylinder is coaxial with downtake.When decline tube head is cone, the top of this cone connects with downtake, and bottom part is furnished with multiple posticum.The location mode of above-mentioned posticum can realize radial injection, and wetted crude synthesis gas is contacted as far as possible fully with water-bath.
Further, moisturizing shower was communicated with at same circumferentially equally distributed 3 to 6 spray headers by 3 to 6 communicating pipe.Spray equipment is set above the water-bath of water-bath separating tank and can removes the ash content that synthetic gas carries further.Circumferentially be uniformly distributed multiple spray header spray area can be made to cover whole water-bath separating tank cross section same, strengthen spray dedusting effect.
The beneficial effects of the utility model are: be directly installed on by Venturi scrubber on water-bath separating tank, communicate with the downtake of water-bath separating tank inside, and this structure shortens the path of the crude synthesis gas after wetting, thus avoids line clogging; After buck sprays at a high speed from the posticum of described downtake head, the synthetic gas containing a small amount of ash content sprays through moisturizing shower, and the ash content further in trapping synthetic gas, further increases ash disposal efficiency, is conducive to the equipment size reducing water wash column; In addition, adopt device of the present utility model to carry out crude synthesis gas purification, can treating plant be reduced, reduce costs.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model
The water-bath separating tank schematic diagram that Fig. 2 is the utility model downtake head when being right cylinder
The water-bath separating tank schematic diagram that Fig. 3 is the utility model downtake head when being cone
Fig. 4 is the distribution schematic diagram of water-bath separating tank of the present utility model when containing 3 spray headers
Fig. 5 is the distribution schematic diagram of water-bath separating tank of the present utility model when containing 4 spray headers
Fig. 6 is the distribution schematic diagram of water-bath separating tank of the present utility model when containing 6 spray headers
In figure:
1, Venturi scrubber 2, water-bath separating tank 3, washing tower
4, water-bath separating tank downtake 5, moisturizing shower 6, downtake head
7, posticum 8, communicating pipe 9, spray header
10, synthetic gas transport pipe
Embodiment
Embodiment 1
Fig. 1 is structural representation of the present utility model.Device of the present utility model comprises Venturi scrubber 1, water-bath separating tank 2 and washing tower 3, wherein Venturi scrubber 1 is arranged on the outer side surface of water-bath separating tank 2, water-bath separating tank 2 is connected with washing tower 3 by synthetic gas transport pipe 10, one end of synthetic gas transport pipe 10 is arranged on the top of water-bath separating tank 2, the other end is arranged on washing tower 3 side lower wall, Venturi scrubber 1 communicates with the downtake 4 of water-bath separating tank 2 inside, is provided with moisturizing shower 5 above downtake 4.Moisturizing shower 5 was communicated with at same circumferentially equally distributed 4 spray headers 9 by 4 communicating pipe 8.Downtake head 6 extends in water-bath, and downtake head 6 is distributed with multiple posticum 7.Wherein downtake head 6 is right cylinder, and posticum 7 is distributed on its side and bottom surface.
Fig. 5 is the distribution schematic diagram of water-bath separating tank 4 spray headers of the present embodiment
During plant running of the present utility model, crude synthesis gas from vapourizing furnace shock chamber is washed by bath water in Venturi scrubber 1, spray through downtake head 6 again and enter water-bath, be separated a large amount of ash contents in crude synthesis gas, from water-bath, synthetic gas out sprays through moisturizing shower 5 in uphill process again, the ash carried in further removing synthetic gas, synthetic gas goes out water-bath separating tank 2 and enters washing tower 3 and purifies further afterwards, and the synthetic gas of purification further goes out washing tower 3 as unstripped gas and enters lower procedure.High temperature Heisui River is discharged from the bottom of water-bath separating tank 2 and washing tower 3 respectively.
Although the foregoing describe preferred embodiment of the present utility model, it will be understood by those of skill in the art that this only illustrates, protection domain of the present utility model is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present utility model and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection domain of the present utility model.
Claims (6)
1. the crude synthesis gas ash handling equipment of an entrained-flow coal gasification system, it is characterized in that: comprise Venturi scrubber (1), water-bath separating tank (2) and washing tower (3), wherein Venturi scrubber (1) is arranged on the outer side surface of water-bath separating tank (2), water-bath separating tank (2) is connected with washing tower (3) by synthetic gas transport pipe (10), one end of synthetic gas transport pipe (10) is arranged on the top of water-bath separating tank (2), the other end is arranged on washing tower (3) side lower wall, Venturi scrubber (1) communicates with the downtake (4) of water-bath separating tank (2) inside, downtake (4) top is provided with moisturizing shower (5), downtake head (6) extends in water-bath, and downtake head (6) is distributed with multiple posticum (7).
2. crude synthesis gas ash handling equipment according to claim 1, is characterized in that: Venturi scrubber (1) is arranged on 1/2 to 2/3 place of water-bath separating tank (2) outside straight section height.
3. crude synthesis gas ash handling equipment according to claim 2, it is characterized in that: the diameter of downtake (4) amplifies at head (6) place, and the area summation of the posticum (7) of the upper distribution of head (6) equals the sectional area of downtake (4).
4. crude synthesis gas ash handling equipment according to claim 3, it is characterized in that: downtake head (6) is right cylinder, its side and bottom surface are distributed with multiple posticum (7), and this right cylinder is coaxial with downtake (4).
5. crude synthesis gas ash handling equipment according to claim 3, is characterized in that: downtake head (6) is cone, and this cone top connects with downtake (4), and bottom part is furnished with multiple posticum (7).
6. the crude synthesis gas ash handling equipment according to claim 1 to 5 any one claim, is characterized in that: moisturizing shower (5) was communicated with same circumferentially equally distributed 3 to 6 spray headers (9) by 3 to 6 communicating pipe (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626931.8U CN204198699U (en) | 2014-10-28 | 2014-10-28 | A kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420626931.8U CN204198699U (en) | 2014-10-28 | 2014-10-28 | A kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system |
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| CN204198699U true CN204198699U (en) | 2015-03-11 |
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| CN201420626931.8U Active CN204198699U (en) | 2014-10-28 | 2014-10-28 | A kind of crude synthesis gas ash handling equipment of entrained-flow coal gasification system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395426A (en) * | 2022-01-10 | 2022-04-26 | 东华工程科技股份有限公司 | Improved coal gasification raw gas washing and separating system |
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2014
- 2014-10-28 CN CN201420626931.8U patent/CN204198699U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114395426A (en) * | 2022-01-10 | 2022-04-26 | 东华工程科技股份有限公司 | Improved coal gasification raw gas washing and separating system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 100004 room 3807, 38 / F, building 1, 6 Xinyuan South Road, Chaoyang District, Beijing Patentee after: Colin energy technology (Beijing) Co.,Ltd. Address before: 100004 room 3601, Jingcheng building, 6 Xinyuan South Road, Chaoyang District, Beijing Patentee before: CHOREN FUTURE ENERGY TECHNOLOGY (BEIJING) Co.,Ltd. |