CN202401036U - Raw gas washing system of GSP (gaskombiant schwarze pumpe) dry pulverized coal gasification - Google Patents
Raw gas washing system of GSP (gaskombiant schwarze pumpe) dry pulverized coal gasification Download PDFInfo
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- CN202401036U CN202401036U CN2011205716471U CN201120571647U CN202401036U CN 202401036 U CN202401036 U CN 202401036U CN 2011205716471 U CN2011205716471 U CN 2011205716471U CN 201120571647 U CN201120571647 U CN 201120571647U CN 202401036 U CN202401036 U CN 202401036U
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Abstract
The utility model relates to a raw gas washing system of GSP (gaskombiant schwarze pumpe) dry pulverized coal gasification, which is used for solving the problem that the subsequent production is influenced as the raw gas has high dust content after being washed. In the washing system, the raw gas enters a bubble separating tower to be washed so as to reduce dust content in the raw gas entering a Venturi washing device and reduce abrasion of the ash to the Venturi, pipes, valves and the like; the raw gas from the top of a secondary Venturi separating tank is sent to a carbon washing tower to be washed further so as to wash finer particles in the raw gas and enable the dust content of the raw gas to meet the requirement of the conversion process; the high-temperature circulating water is used as washing water of the first and secondary Venturi washing devices, so that the washing efficiency of the raw gas is improved; the washing water discharged from the first and secondary Venturi separating tanks and the carbon washing tower is used as washing water of the bubble separating tower and finally enters a flash system, the influence on chilling water quality is reduced, and the chilling pump and the chilling spray head from can be prevented from corroding as the washing water is not used as chilling water.
Description
Technical field
The utility model belongs to the Coal Gasification Technology field, particularly relates to the raw gas washing system of a kind of GSP (GaskombiantSchwarze Pumpe) dry coal powder gasification.
Background technology
Coal Gasification Technology is the key of clean coal technology as the frontier technology of coal deep processing, conversion, is " tap " technology, and Application Areas is very extensive.Up to now, the applied main flow Coal Gasification Technology of extensive gasification production is dry coal powder and coal water slurry entrained flow bed gasification technology.And GSP dry coal powder pressurized air flow bed gasification technology; Similar gasification technology with other is compared; Adopt the reinforced and reaction chamber water wall structure of gasification furnace roof dry powder, its distinctive feature is arranged in gasification furnace structure and technical process, it is low to have the oxygen consumption; Coal adapts to wide and cold gas efficiency advantages of higher, is with a wide range of applications.
Yet the raw gas dustiness of coming out in GSP vapourizing furnace shock chamber is high, just can be sent to next step conversion after needing to handle.Fig. 1 shows the raw gas washing system of GSP dry coal powder gasification in the prior art, and this raw gas washing system comprises one-level, secondary Venturi scrubber 11,13, one-level, secondary Venturi separating tank 12,14, fractional distillating tube 15 and virgin gas separating tank 16.Raw gas from the vapourizing furnace shock chamber gets into one-level Venturi scrubber 11, one-level Venturi separating tank 12, secondary Venturi scrubber 13 and secondary Venturi separating tank 14 successively; Raw gas entering part condensing surface 15 after passing through washing and separating, cooled raw gas is charging feed gas separating tank 16 again.Be provided with scum dredger in the said virgin gas separating tank 16, the washing water of virgin gas separating tank 16 are process condensate, and under the flushing of process condensate, raw gas is sent to next step conversion section after scum dredger further removes dust.Wherein, The washing water that draw virgin gas separating tank 16 bottoms are sent to one-level, secondary Venturi scrubber 11,13 through washing water pump; Get into one-level, secondary Venturi separating tank 12,14 respectively behind the washing raw gas, the dust-laden washing water of discharging from one-level, secondary Venturi separating tank 12,14 bottoms are sent to the vapourizing furnace shock chamber as chilled water.
This raw gas washing device and technology, not good to the washing effect of raw gas, main drawback shows:
1. the raw gas from the vapourizing furnace shock chamber directly gets into the Venturi scrubber washing; Because the raw gas dustiness causes the I and II Venturi scrubber can't reach the washing effect of design greatly; Cause conversion section protection bed and interchanger dust stratification serious, influence the lasting ordinary production of device.
Because get into that the raw gas of Venturi scrubber carries that the grey quantity of slag is big secretly, the used water of I and II Venturi scrubber is the washing water of virgin gas separating tank during granularity Datong District; This water dustiness is high; The pipeline of the Venturi scrubber that causes, valve and shower nozzle serious wear; One-level Venturi separating tank and secondary Venturi separating tank washing water are discharged difficulty, and liquid level is wayward.
3. when the washing water of discharging from one-level Venturi separating tank and secondary Venturi separating tank get into the Quench jar and recycle,, cause the abrasion of Quench pump and Quench shower nozzle serious because the washing water dustiness is too high.
4. the built-in scum dredger dust stratification of virgin gas separating tank is serious, is difficult for cleaning, and makes raw gas gas speed increase, and scum dredger is prone to thrown.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of raw gas washing system of GSP dry coal powder gasification, and it is high through washing back dust content to be used to solve raw gas, influences the problem of subsequent production.
For realizing above-mentioned purpose, the utility model adopts following technical scheme:
A kind of raw gas washing system of GSP dry coal powder gasification; Said washing system comprises: one-level Venturi scrubber, one-level Venturi separating tank, secondary Venturi scrubber and secondary Venturi separating tank; The outlet line of said one-level Venturi scrubber is connected with one-level Venturi separating tank; Said one-level Venturi separating tank top exit pipeline is connected with the secondary Venturi scrubber; The outlet line of said secondary Venturi scrubber is connected with secondary Venturi separating tank, and wherein, said raw gas washing system also comprises:
The bubbling knockout tower is used to wash the raw gas from the vapourizing furnace shock chamber, and the raw gas outlet line at said bubbling knockout tower top is connected with the one-level Venturi scrubber;
Carbon is washed tower, is used to wash the raw gas from secondary Venturi separating tank, and the raw gas after will washing washes the top of tower pipeline via carbon and be sent to next workshop section, and the washing water of carbon being washed tower bottom are sent to said bubbling knockout tower.
Preferred implementation as the raw gas washing system; The washing water outlet line that said carbon is washed tower bottom is connected to the raw gas source line of said bubbling knockout tower, and the bottom wash water out pipeline of said one-level, secondary Venturi separating tank is connected to the raw gas source line that said carbon is washed tower bottom or said bubbling knockout tower.
Preferred implementation as the raw gas washing system; The washing water outlet line that said carbon is washed tower bottom is connected to the top of said bubbling knockout tower, and the bottom wash water out pipeline of said one-level, secondary Venturi separating tank is connected to the top that said carbon is washed tower bottom or said bubbling knockout tower.
As the preferred implementation of raw gas washing system, the washing water inlet pipeline of one-level, secondary Venturi scrubber links to each other with the unitary high temperature circulation water pipeline of usage on black water.
As the preferred implementation of raw gas washing system, the washing water outlet of said bubbling knockout tower bottom is connected through pipeline with the black water flash system.
As the preferred implementation of raw gas washing system, be provided with the layer 2-4 grid in the said bubbling knockout tower, and above the superiors' grid, the eddy flow plate be installed.
As the preferred implementation of raw gas washing system, said eddy flow plate is by housing, spider and be connected housing and the lath of spider is formed, and the closure of said lath is the tangential direction of spider outer rim.
As the preferred implementation of raw gas washing system, said carbon is washed the Pall ring metallic stuffing that is provided with the heap that looses in the tower, and said filler is divided into two-layer, and the height of every layer of filler is 3-5m.
Visible by technique scheme; The raw gas washing system that the utility model provides; Raw gas is before the washing of I and II Venturi scrubber; At first get into the washing of bubbling knockout tower, reduce the dustiness in the raw gas that gets into Venturi scrubber, reduce lime-ash the abrasion of Venturi, pipeline, valve etc. and the problem of one-level Venturi separating tank and secondary Venturi separating tank washing water discharge difficulty.The raw gas of drawing from secondary Venturi separating tank top is sent to carbon again and washes tower and further wash, and with fine particle more in the washing raw gas, makes the dustiness of raw gas reach the requirement of shift conversion step, and this carbon is washed tower and is easy to the dimension inspection simultaneously.In addition; Use the washing water of high temperature circulation water, improved detersive efficiency, and one-level, secondary Venturi separating tank and carbon are washed the washing water that tower discharges and is used for bubbling knockout tower washing water raw gas as the I and II Venturi scrubber; Get into flash system at last; No longer, reduce, prevent the abrasion of Quench pump and Quench shower nozzle the Quench water quality impact as chilled water.The raw gas washing system that the utility model provides improves the quality of raw gas, prevents wearing and tearing, the obstruction of pipeline, valve, improves detersive efficiency, realizes long-period stable operation.
Description of drawings
Fig. 1 is the raw gas washing system of GSP dry coal powder gasification in the prior art;
The raw gas washing system of the GSP dry coal powder gasification that Fig. 2 provides for the embodiment of the utility model;
Fig. 3 is the eddy flow plate structure synoptic diagram of bubbling knockout tower among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing the utility model is elaborated, but the utility model is not limited to this embodiment and scope shown in the drawings.
Fig. 2 shows the raw gas washing system of a kind of GSP dry coal powder gasification that the utility model provides, and said raw gas washing system comprises that bubbling knockout tower 21, one-level, secondary Venturi scrubber 22,24, one-level, secondary Venturi separating tank 23,25 and carbon washes tower 26.
Wherein, said bubbling knockout tower 21 is used to wash the raw gas from the vapourizing furnace shock chamber, and its raw gas outlet line is connected with one-level Venturi scrubber 22; The outlet line of said one-level Venturi scrubber 22 is connected with one-level Venturi separating tank 23; Said one-level Venturi separating tank 23 top exit pipelines are connected with secondary Venturi scrubber 24, and the outlet line of said secondary Venturi scrubber 24 is connected with secondary Venturi separating tank 25; Said carbon is washed tower 26 and is used to wash the raw gas from secondary Venturi separating tank 25, and the raw gas after will washing is washed tower 26 overhead line via carbon and is sent to next workshop section.The washing water of carbon being washed tower 26 bottoms are sent to said bubbling knockout tower 21.
The washing flow of raw gas is following; The raw gas that draw autopneumatolysis stove shock chamber gets into bubbling knockout tower 21 bottoms, the washing water that have certain liquid level in the said bubbling knockout tower 21, and raw gas is drawn by cat head through washing water washing back; Wherein in bubbling knockout tower 21, also be provided with 2-4 level grid; Abolishing in bubbling knockout tower 21 bubble of being carried secretly in the raw gas that rises, above higher level's grid, eddy flow plate 27 is installed also, make raw gas produce eddy flow.As shown in Figure 3, said eddy flow plate 27 is by housing 30, spider 31 and be connected housing 30 and form with the lath 32 of spider 31, and the closure of said lath 32 is the tangential direction of spider 31 outer rims.Raw gas produces eddy flow through eddy flow plate 27 backs, under action of centrifugal force, the macrobead solid is thrown away from raw gas.
The raw gas of drawing from bubbling knockout tower 21 tops gets into one-level Venturi scrubber 22; The washing back gets into one-level Venturi separating tank 23 in the lump with washing water and carries out gas-liquid separation; Isolated raw gas is drawn from one-level Venturi separating tank 23 abhisecas and is got into secondary Venturi scrubber 24 and secondary Venturi separating tank 25 successively, further washing, separation.Raw gas is sent into carbon and is washed tower bottom 26 after secondary Venturi separating tank 25 abhisecas are drawn.Said carbon is washed and is provided with the heap Pall ring metallic stuffing 28 of loosing in the tower 26, and said filler 28 is divided into two-layer, and the height of every layer of filler is 3-5m.Raw gas rises at the bottom of the tower, and washing water spray from cat head, and during through filler 28, washing water fully contact with raw gas, thereby take away fine solid particles in the raw gas, and the raw gas after the washing is washed tower 26 cats head by carbon and drawn and be sent to next conversion section.
In an embodiment of the utility model, the washing water inlet pipeline of said one-level, secondary Venturi scrubber 22,24 links to each other with the unitary high temperature circulation water pipeline of usage on black water.Spray into one-level, secondary Venturi scrubber 22,24 from the unitary high temperature circulation water of usage on black water through a plurality of shower nozzles, get into one-level, secondary Venturi separating tank 23,25 respectively behind the washing raw gas.The bottom wash water out pipeline of said one-level, secondary Venturi separating tank 23,25 is connected to said carbon and washes tower 26 bottoms, and washing water is drawn from one-level, secondary Venturi separating tank 23,25 bottoms be sent to carbon and wash tower 26 bottoms.
The washing water that said carbon is washed in the tower 26 are process condensate, from conversion section, wash tower 26 tops by carbon and introduce.The washing water outlet line that said carbon is washed tower 26 bottoms is connected to the raw gas source line 29 of said bubbling knockout tower 21; Washing water behind the washing raw gas are sent to the raw gas source line 29 of bubbling knockout tower 21 with the washing water from one-level, 23,25 introducings of secondary Venturi separating tank through washing water pump; Spray in the raw gas through shower nozzle; And together get into bubbling knockout tower 21 with raw gas, fully the humidification raw gas is grown up the dust granules of carrying secretly in the raw gas; As the washing water of bubbling knockout tower 21, keep carbon to wash tower 26 bottom wash water liquid levels under the raw gas inlet simultaneously.Certainly, can not get into also that carbon is washed tower 26 and the raw gas source line 29 that directly is sent to bubbling knockout tower 21 from the washing water of one-level, secondary Venturi separating tank 23,25.The washing water outlet of said bubbling knockout tower 21 bottoms is connected through pipeline with the black water flash system, and the washing water that get into bubbling knockout tower 21 are discharged from bubbling knockout tower 21 bottoms behind the washing raw gas, are sent to the black water flash system through pipeline.
In another preferred embodiment of the utility model, the bottom wash water out pipeline of said one-level, secondary Venturi separating tank 23,25 is connected to said carbon and washes tower 26 bottoms.The washing water outlet line that said carbon is washed tower 26 bottoms is connected to the top of said bubbling knockout tower 21; Be eddy flow plate top, the washing water behind the washing raw gas are sent to the top of bubbling knockout tower 21 with the washing water from one-level, 23,25 introducings of secondary Venturi separating tank through washing water pump.Certainly, can not get into also from the washing water of one-level, secondary Venturi separating tank 23,25 that carbon is washed tower 26 and directly be sent to the top of bubbling knockout tower 21 through pipeline.
Obviously, those skilled in the art can carry out various changes and distortion to the utility model, and does not break away from the purport of the utility model.Like this, if these changes of the utility model and distortion belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and is out of shape interior.
Claims (8)
1. the raw gas washing system of a GSP dry coal powder gasification; Said washing system comprises: one-level Venturi scrubber, one-level Venturi separating tank, secondary Venturi scrubber and secondary Venturi separating tank; The outlet line of said one-level Venturi scrubber is connected with one-level Venturi separating tank; Said one-level Venturi separating tank top exit pipeline is connected with the secondary Venturi scrubber, and the outlet line of said secondary Venturi scrubber is connected with secondary Venturi separating tank
It is characterized in that said raw gas washing system also comprises:
The bubbling knockout tower is used to wash the raw gas from the vapourizing furnace shock chamber, and the raw gas outlet line at said bubbling knockout tower top is connected with the one-level Venturi scrubber;
Carbon is washed tower, is used to wash the raw gas from secondary Venturi separating tank, and the raw gas after will washing washes the top of tower pipeline via carbon and be sent to next workshop section, and the washing water of carbon being washed tower bottom are sent to said bubbling knockout tower.
2. raw gas washing system as claimed in claim 1; It is characterized in that; The washing water outlet line that said carbon is washed tower bottom is connected to the raw gas source line of said bubbling knockout tower, and the bottom wash water out pipeline of said one-level, secondary Venturi separating tank is connected to the raw gas source line that said carbon is washed tower bottom or said bubbling knockout tower.
3. raw gas washing system as claimed in claim 1; It is characterized in that; The washing water outlet line that said carbon is washed tower bottom is connected to the top of said bubbling knockout tower, and the bottom wash water out pipeline of said one-level, secondary Venturi separating tank is connected to the top that said carbon is washed tower bottom or said bubbling knockout tower.
4. like claim 2 or 3 described raw gas washing systems, it is characterized in that the washing water inlet pipeline of said one-level, secondary Venturi scrubber links to each other with the unitary high temperature circulation water pipeline of usage on black water.
5. raw gas washing system as claimed in claim 4 is characterized in that, the washing water outlet of said bubbling knockout tower bottom is connected through pipeline with the black water flash system.
6. raw gas washing system as claimed in claim 5 is characterized in that, is provided with the layer 2-4 grid in the said bubbling knockout tower, and above the superiors' grid, the eddy flow plate is installed.
7. raw gas washing system as claimed in claim 6 is characterized in that, said eddy flow plate is by housing, spider and be connected housing and the lath of spider is formed, and the closure of said lath is the tangential direction of spider outer rim.
8. like any described raw gas washing system among the claim 1-7, it is characterized in that said carbon is washed the Pall ring metallic stuffing that is provided with the heap that looses in the tower, said filler is divided into two-layer, and the height of every layer of filler is 3-5m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205716471U CN202401036U (en) | 2011-12-30 | 2011-12-30 | Raw gas washing system of GSP (gaskombiant schwarze pumpe) dry pulverized coal gasification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205716471U CN202401036U (en) | 2011-12-30 | 2011-12-30 | Raw gas washing system of GSP (gaskombiant schwarze pumpe) dry pulverized coal gasification |
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| Publication Number | Publication Date |
|---|---|
| CN202401036U true CN202401036U (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205716471U Expired - Lifetime CN202401036U (en) | 2011-12-30 | 2011-12-30 | Raw gas washing system of GSP (gaskombiant schwarze pumpe) dry pulverized coal gasification |
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| CN (1) | CN202401036U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880939A (en) * | 2017-11-20 | 2018-04-06 | 神华集团有限责任公司 | A kind of gasification system |
| CN108102718A (en) * | 2018-01-02 | 2018-06-01 | 神华集团有限责任公司 | Dry pulverized coal gives up pan gas system and method |
-
2011
- 2011-12-30 CN CN2011205716471U patent/CN202401036U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107880939A (en) * | 2017-11-20 | 2018-04-06 | 神华集团有限责任公司 | A kind of gasification system |
| CN107880939B (en) * | 2017-11-20 | 2024-01-12 | 神华集团有限责任公司 | Coal gasification system |
| CN108102718A (en) * | 2018-01-02 | 2018-06-01 | 神华集团有限责任公司 | Dry pulverized coal gives up pan gas system and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
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| CX01 | Expiry of patent term |