CN202786143U - Raw gas washing device in pressurized gasification system of powdered coal - Google Patents
Raw gas washing device in pressurized gasification system of powdered coal Download PDFInfo
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- CN202786143U CN202786143U CN201220445101.6U CN201220445101U CN202786143U CN 202786143 U CN202786143 U CN 202786143U CN 201220445101 U CN201220445101 U CN 201220445101U CN 202786143 U CN202786143 U CN 202786143U
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Abstract
The utility model relates to a raw gas washing device in a pressurized gasification system of powdered coal, which comprises the following equipment connected through pipelines: a first-level venturi scrubber, a first-level venturi separator, a second-level venturi scrubber, a second-level venturi separator, a partial condenser, a feed gas separating tank and a high-pressure spray washer and/or a multifactor cyclone separator. The raw gas washing device in the pressurized gasification system of the powdered coal, provided by the utility model, is compact in design, high in operating flexibility and high in dust removal efficiency, and enables the ash content of the raw gas after washing to be less than1 mg/m<3>, so as to realize deep purification of the raw gas, and facilitate long-period stable operation of the pressurized gasification system of the powdered coal.
Description
Technical field
The utility model relates to the raw gas scrubbing device in a kind of powdered coal pressuring gasified system.
Background technology
The contained thin ash of raw gas that powdered coal pressuring gasified system produces causes wearing and tearing and the obstruction of pipeline and relative unit easily.The synthetic gas that powdered coal pressuring gasified system produces is during for the production of chemical, if raw gas purifying is not thorough, the thin ash that wherein contains, water smoke very easily stop up the conversion bed or are attracted to catalyst surface, make catalyst activity reduction so that have a strong impact on production, thereby cause great financial loss.So raw gas scrubbing device is most important to the steady running of producing, its target that will reach be in the coal gas dustiness less than 1mg/m
3
The raw gas scrubbing device that dried coal powder pressurized air flow bed gasification technology adopts, through after the two-stage Venturi scrubbing, separating with raw gas, through fractional distillating tube raw gas is carried out condensation again, then incoming stock gas separating tank carries out final washing, purifying to unstripped gas.Because the fine particle that dry coal powder gasification produces is many especially, this washing device can't reach the raw gas washing cleanliness factor of follow-up equipment operation, often occur following problem in the production run: 1, the washing water in the unstripped gas separating tank are the flocculate water of gluey dust of higher the containing of turbidity, and dust wherein left standstill after 5,6 days does not still have Precipitation.2, pipeline often appears in raw gas scrubbing device, valve is worn through or wear phenomenon.3, follow-up conversion feed preheater often stops up because ash oontent in the unstripped gas is high, causes the protection bed pressure reduction of conversion equipment high, causes parking.
The utility model content
For the deficiencies in the prior art, the utility model provides the raw gas scrubbing device in a kind of powdered coal pressuring gasified system.
Raw gas scrubbing device in the powdered coal pressuring gasified system that the utility model provides, it comprises the following equipment that links to each other by pipeline: the one-level Venturi scrubber, the one-level Venturi separator that carries out gas-liquid separation that links to each other with the outlet of described one-level Venturi scrubber, the secondary Venturi scrubber that links to each other with the air outlet of described one-level Venturi separator, the secondary Venturi separator that carries out gas-liquid separation that links to each other with the outlet of described secondary Venturi scrubber, the fractional distillating tube that links to each other with the air outlet of described secondary Venturi separator, and the unstripped gas separating tank that links to each other with the air outlet of described fractional distillating tube; Wherein, between described fractional distillating tube and described unstripped gas separating tank, be provided with the high pressure jet cleaning device and/or be connected with the multiplefactor cyclonic separator in the air outlet of described unstripped gas separating tank.
Preferably, described raw gas scrubbing device comprises described high pressure jet cleaning device and described multiplefactor cyclonic separator simultaneously.
The spouting of liquid direction of described high pressure jet cleaning device and be 0 ° ~ 180 ° from the angle between the raw gas air flow line of described fractional distillating tube air outlet.
Preferably, the spouting of liquid direction of described high pressure jet cleaning device and be 0 ° ~ 60 ° from the angle between the raw gas air flow line of described fractional distillating tube air outlet.
The high 4 ~ 8MPa of pressure in the pressure ratio that device is washed in described high pressure spraying and the pipeline that described fractional distillating tube air outlet links to each other.
Described high pressure jet cleaning device is the high-pressure atomization shower nozzle; The used atomized water of described high pressure jet cleaning device is high pressure boiler water supply.
Described multiplefactor cyclonic separator comprises at least two whirly separators.
Described unstripped gas separating tank is bubble-plate column, and the tower tray number of described bubble-plate column is at least one, is preferably 3 ~ 6; And the top of this bubble-plate column is equipped with spiral board.
The liquid exit of the liquid exit of described fractional distillating tube, described unstripped gas separating tank links to each other by the washing water inlet of pipeline with described one-level Venturi scrubber, described secondary Venturi scrubber with the liquid exit of described multiplefactor cyclonic separator.
Come transformation into itself's phlegma to link to each other by the washing water inlet of pipeline with described unstripped gas separating tank; The liquid exit of described one-level Venturi separator and described secondary Venturi separator links to each other with the black water flash system by pipeline.
Raw gas scrubbing device in the powdered coal pressuring gasified system that the utility model provides, compact to design, turndown ratio is large, efficiency of dust collection is high, can make after the washing ash content＜1mg/m in the raw gas
3, realized the deep purifying of raw gas being conducive to powdered coal pressuring gasified system long-period stable operation.
Description of drawings
Fig. 1 is the synoptic diagram of the raw gas scrubbing device in a kind of powdered coal pressuring gasified system of the present utility model.
Reference numeral:
1, one-level Venturi scrubber
2, one-level Venturi separator
3, secondary Venturi scrubber
4, secondary Venturi separator
5, fractional distillating tube
6, high pressure jet cleaning device
7, unstripped gas separating tank
8, multiplefactor cyclonic separator
Embodiment
With reference to the accompanying drawings the utility model is further described in more detail.
As seen from Figure 1, raw gas scrubbing device in the powdered coal pressuring gasified system of the present utility model comprises the following equipment that links to each other by pipeline: one-level Venturi scrubber 1, the one-level Venturi separator 2 that carries out gas-liquid separation that links to each other with the outlet of described one-level Venturi scrubber 1, the secondary Venturi scrubber 3 that links to each other with the air outlet of described one-level Venturi separator 2, the secondary Venturi separator 4 that carries out gas-liquid separation that links to each other with the outlet of described secondary Venturi scrubber 3, the fractional distillating tube 5 that links to each other with the air outlet of described secondary Venturi separator 4, and the unstripped gas separating tank 7 that links to each other with the air outlet of described fractional distillating tube 5; Wherein, between described fractional distillating tube 5 and described unstripped gas separating tank 7, be provided with high pressure jet cleaning device 6 and/or be connected with multiplefactor cyclonic separator 8 in the air outlet of described unstripped gas separating tank 7.
Entering one-level Venturi scrubber 1 from the vapourizing furnace raw gas washs, enter one-level Venturi separator 2 after the washing and carry out gas-liquid separation, entering secondary Venturi scrubber 3 from the air outlet raw gas out of one-level Venturi separator 2 washs, enter secondary Venturi separator 4 after the washing and carry out gas-liquid separation, by fully wetting, macrobead is washed to separate and removes from the air outlet raw gas out dust wherein of secondary Venturi separator 4; Then entering part condenser 5 carries out condensation, and this raw gas temperature reduces, thus the further dust in the raw gas is wetting, reunion and out settlement separate; Clean with high pressure jet cleaning device 6 from the air outlet raw gas out of described fractional distillating tube 5, the tiny drop of described high pressure jet cleaning device 6 generations can adsorb more tiny dust wetting and reunite with getting up; Separate in the incoming stock gas separating tank 7 of raw gas after the cleaning, the dust in the raw gas is washed to separate with drop remove, thereby produce qualified synthetic gas.
Perhaps, entering one-level Venturi scrubber 1 from the vapourizing furnace raw gas washs, enter one-level Venturi separator 2 after the washing and carry out gas-liquid separation, entering secondary Venturi scrubber 3 from the air outlet raw gas out of one-level Venturi separator 2 washs, enter secondary Venturi separator 4 after the washing and carry out gas-liquid separation, by fully wetting, macrobead is washed to separate and removes from the air outlet raw gas out dust wherein of secondary Venturi separator 4; Then entering part condenser 5 carries out condensation, and this raw gas temperature reduces, thus the further dust in the raw gas is wetting, reunion and out settlement separate; Enter the described unstripped gas separating tank 7 from the air outlet raw gas out of described fractional distillating tube 5 and to separate, the washing of dust in the raw gas and drop separated remove, then enter described multiplefactor cyclonic separator 8, described multiplefactor cyclonic separator 8 can further be removed from the dust in the raw gas of described unstripped gas separating tank 7 and drop, thereby produces ash content raw gas still less.Then this raw gas enters follow-up transformation system.
Perhaps, entering one-level Venturi scrubber 1 from the vapourizing furnace raw gas washs, enter one-level Venturi separator 2 after the washing and carry out gas-liquid separation, entering secondary Venturi scrubber 3 from the air outlet raw gas out of one-level Venturi separator 2 washs, enter secondary Venturi separator 4 after the washing and carry out gas-liquid separation, by fully wetting, macrobead is washed to separate and removes from the air outlet raw gas out dust wherein of secondary Venturi separator 4; Then entering part condenser 5 carries out condensation, and this raw gas temperature reduces, thus the further dust in the raw gas is wetting, reunion and out settlement separate; Clean with high pressure jet cleaning device 6 from the air outlet raw gas out of described fractional distillating tube 5, the tiny drop of described high pressure jet cleaning device 6 generations can adsorb more tiny dust wetting and reunite with getting up; Separate in the incoming stock gas separating tank 7 of raw gas after the cleaning, the washing of dust in the raw gas and drop separated remove, then enter described multiplefactor cyclonic separator 8, described multiplefactor cyclonic separator 8 can further be removed from the dust in the raw gas of described unstripped gas separating tank 7 and drop, thereby produces ash content raw gas still less.Then this raw gas enters follow-up transformation system.
Described one-level Venturi scrubber 1, described one-level Venturi separator 2, described secondary Venturi scrubber 3 are in series with described secondary Venturi scrubbing separator 4, are intended to wetting raw gas, and wherein drop and dust separation are removed.
Preferably, described raw gas scrubbing device comprises described high pressure jet cleaning device 6 and described multiplefactor cyclonic separator 8 simultaneously.At this moment, can reach best dust removing effects.
The spouting of liquid direction of described high pressure jet cleaning device 6 and be 0 ° ~ 180 ° from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.At this moment, described high pressure jet cleaning device 6 absorption, effect wetting, the tiny dust of reuniting are better.0 ° of direction that refers to both is consistent; 180 ° of opposite directions that refer to both.
Preferably, the spouting of liquid direction of described high pressure jet cleaning device 6 and be 0 ° ~ 60 ° from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.The better effects if of at this moment, described high pressure jet cleaning device 6 absorption, wetting, the tiny dust of reuniting.
More preferably, the spouting of liquid direction of described high pressure jet cleaning device 6 and be 0 ° from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.At this moment, described high pressure jet cleaning device 6 absorption, effect wetting, the tiny dust of reuniting are best.
The high 4 ~ 8MPa of pressure in the pressure ratio of described high pressure jet cleaning device 6 and the pipeline that described fractional distillating tube 5 air outlets link to each other.At this moment, described high pressure jet cleaning device 6 absorption, effect wetting, the tiny dust of reuniting are better.
It will be understood by those skilled in the art that in practice, described high pressure jet cleaning device 6 can be built in the pipeline that links to each other with described fractional distillating tube 5 air outlets for convenient.
Described high pressure jet cleaning device 6 is the high-pressure atomization shower nozzle; Described high pressure jet cleaning device 6 used atomized waters are high pressure boiler water supply.Described high-pressure atomization shower nozzle can form very tiny drop, thereby the most tiny thin ash of absorption makes particle agglomeration, is easy to separating, washing.
Described multiplefactor cyclonic separator 8 comprises at least two whirly separators.Strengthen thus separating effect, tiny dust drop can be separated from raw gas.
Described unstripped gas separating tank 7 is bubble-plate column, and the tower tray number of described bubble-plate column is at least one, is preferably 3 ~ 6; And the top of this bubble-plate column is equipped with spiral board.Raw gas is through the washing of at least one bubble cap plate, make the better wetted and cohesion of thin ash in the raw gas, then process is installed in the eddy flow of the spiral board at top, and drop and mist are separated from unstripped gas, has greatly improved the washing effect of unstripped gas.Described unstripped gas separating tank 7 uses transformation into itself's phlegma.
The liquid exit of the liquid exit of described fractional distillating tube 5, described unstripped gas separating tank 7 links to each other by the washing water inlet of pipeline with described one-level Venturi scrubber 1, described secondary Venturi scrubber 3 with the liquid exit of described multiplefactor cyclonic separator 8.
Come transformation into itself's phlegma to link to each other by the washing water inlet of pipeline with described unstripped gas separating tank 7; The liquid exit of described one-level Venturi separator 2 and described secondary Venturi separator 4 links to each other with the black water flash system by pipeline.
Described raw gas scrubbing device can improve the washing effect in the raw gas washing process, can produce thus the qualified synthetic gas of cleanliness factor.
In this application, " raw gas ", " unstripped gas " and " synthetic gas " in some cases can Alternate.
Compared with prior art, raw gas scrubbing device of the present utility model has added high pressure jet cleaning device 6, and it can produce very tiny drop, adsorbs the most tiny thin ash, and then makes particle agglomeration, is easy to separating, washing.Perhaps, raw gas scrubbing device of the present utility model has added multiplefactor cyclonic separator 8, and this multiplefactor cyclonic separator 8 comprises at least two whirly separators, strengthens thus separating effect, tiny dust drop can be separated from raw gas.Preferably, compared with prior art, raw gas scrubbing device of the present utility model has added high pressure jet cleaning device 6 and multiplefactor cyclonic separator 8 simultaneously, can reach best dust removing effects thus.
Raw gas scrubbing device of the present utility model has improved the washing effect of raw gas, and through after the purification of this washing device, raw gas reaches follow up device fully to the requirement of synthetic gas cleanliness factor.Raw gas scrubbing device of the present utility model has reduced raw gas scrubbing device in the prior art because the pipeline that the dustiness height causes and device damage; prevent transformation system because ash content stops up the unplanned parking that the protection bed causes, ensured the long-period stable operation of whole system.
The following examples only are used for explaining the utility model, and unrestricted the utility model.
The multiplefactor cyclonic separator is available from Sulzer.
Embodiment 1
Described raw gas scrubbing device comprises the following equipment that links to each other by pipeline: one-level Venturi scrubber 1, one-level Venturi separator 2, secondary Venturi scrubber 3, secondary Venturi separator 4, fractional distillating tube 5, high pressure jet cleaning device (high-pressure atomization shower nozzle) 6 and unstripped gas separating tank 7(wherein the tower tray number of bubble-plate column are 3; And the top of this bubble-plate column is equipped with spiral board).The liquid exit of the liquid exit of described fractional distillating tube 5 and described unstripped gas separating tank 7 links to each other by the washing water inlet of pipeline with described one-level Venturi scrubber 1 and described secondary Venturi scrubber 3.Come transformation into itself's phlegma to link to each other by the washing water inlet of pipeline with described unstripped gas separating tank 7; The liquid exit of described one-level Venturi separator 2 and described secondary Venturi separator 4 links to each other with the black water flash system by pipeline.Described high pressure jet cleaning device (high-pressure atomization shower nozzle) 6 is by high pressure boiler water supply.Described unstripped gas separating tank 7 uses transformation into itself's phlegma.
2000 tons of/day dry pulverized coal pressurizing gasifying apparatus, vapor pressure are 4.0MPa, and gasification temperature is 1400 ~ 1600 ℃, and raw gas butt flow is 73000Nm
3/ h, wet basis flow are 187500Nm
3It is 221 ℃ that/h, raw gas go out gasifier temperature.Entering one-level Venturi scrubber 1 from the raw gas of vapourizing furnace washs, enter one-level Venturi separator 2 after the washing and carry out gas-liquid separation, entering secondary Venturi scrubber 3 from the air outlet raw gas out of one-level Venturi separator 2 washs, enter secondary Venturi separator 4 after the washing and carry out gas-liquid separation, by fully wetting, macrobead is washed to separate and removes from the air outlet raw gas out dust wherein of secondary Venturi separator 4; Then entering part condenser 5 carries out condensation, and this raw gas temperature reduces, thus the further dust in the raw gas is wetting, reunion and out settlement separate; Clean with being built in ducted high-pressure atomization shower nozzle 6 from the air outlet raw gas out of described fractional distillating tube 5.The spouting of liquid direction of described high-pressure atomization shower nozzle 6 and be 0 ° from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.The high 8MPa of pressure in the pressure ratio of described high-pressure atomization shower nozzle 6 and the pipeline that described fractional distillating tube 5 air outlets link to each other.The tiny drop of described high-pressure atomization shower nozzle 6 generations can adsorb more tiny dust wetting and reunite with getting up; Separate in the incoming stock gas separating tank 7 of raw gas after the cleaning, the dust in the raw gas is washed to separate with drop remove.
Through above-mentioned raw gas scrubbing device, the dustiness in the raw gas that obtains is about 1mg/m
3, substantially meet the requirement of subsequent technique (transformation system).
Described raw gas scrubbing device comprises the following equipment that links to each other by pipeline: one-level Venturi scrubber 1, one-level Venturi separator 2, secondary Venturi scrubber 3, secondary Venturi separator 4, fractional distillating tube 5, unstripped gas separating tank 7(wherein the tower tray number of bubble-plate column are 6; And the top of this bubble-plate column is equipped with spiral board) and multiplefactor cyclonic separator 8(comprise a plurality of whirly separators).The liquid exit of the liquid exit of the liquid exit of described fractional distillating tube 5, described unstripped gas separating tank 7 and described multiplefactor cyclonic separator 8 links to each other by the washing water inlet of pipeline with described one-level Venturi scrubber 1 and described secondary Venturi scrubber 3.Come transformation into itself's phlegma to link to each other by the washing water inlet of pipeline with described unstripped gas separating tank 7; The liquid exit of described one-level Venturi separator 2 and described secondary Venturi separator 4 links to each other with the black water flash system by pipeline.Described unstripped gas separating tank 7 uses transformation into itself's phlegma.
2000 tons of/day dry pulverized coal pressurizing gasifying apparatus, vapor pressure are 4.0MPa, and gasification temperature is 1400 ~ 1600 ℃, and raw gas butt flow is 73000Nm
3/ h, wet basis flow are 187500Nm
3It is 221 ℃ that/h, raw gas go out gasifier temperature.Entering one-level Venturi scrubber 1 from the raw gas of vapourizing furnace washs, enter one-level Venturi separator 2 after the washing and carry out gas-liquid separation, entering secondary Venturi scrubber 3 from the air outlet raw gas out of one-level Venturi separator 2 washs, enter secondary Venturi separator 4 after the washing and carry out gas-liquid separation, by fully wetting, macrobead is washed to separate and removes from the air outlet raw gas out dust wherein of secondary Venturi separator 4; Then entering part condenser 5 carries out condensation, and this raw gas temperature reduces, thus the further dust in the raw gas is wetting, reunion and out settlement separate; Enter the described unstripped gas separating tank 7 from the air outlet raw gas out of described fractional distillating tube 5 and to separate, washing separates and removes with drop with the dust in the raw gas; Then enter multiplefactor cyclonic separator 8, further remove dust and drop in the raw gas.
Through above-mentioned raw gas scrubbing device, the about 1mg/m of the dustiness in the raw gas that obtains
3, meet the requirement of subsequent technique (transformation system) fully.
Embodiment 3
Described raw gas scrubbing device comprises the following equipment that links to each other by pipeline: one-level Venturi scrubber 1, one-level Venturi separator 2, secondary Venturi scrubber 3, secondary Venturi separator 4, fractional distillating tube 5, high pressure jet cleaning device (high-pressure atomization shower nozzle) 6, unstripped gas separating tank 7(wherein the tower tray number of bubble-plate column are 6; And the top of this bubble-plate column is equipped with spiral board) and multiplefactor cyclonic separator 8(comprise a plurality of whirly separators).The liquid exit of the liquid exit of the liquid exit of described fractional distillating tube 5, described unstripped gas separating tank 7 and described multiplefactor cyclonic separator 8 links to each other by the washing water inlet of pipeline with described one-level Venturi scrubber 1 and described secondary Venturi scrubber 3.Come transformation into itself's phlegma to link to each other by the washing water inlet of pipeline with described unstripped gas separating tank 7; The liquid exit of described one-level Venturi separator 2 and described secondary Venturi separator 4 links to each other with the black water flash system by pipeline.Described high pressure jet cleaning device (high-pressure atomization shower nozzle) 6 is by high pressure boiler water supply.Described unstripped gas separating tank 7 uses transformation into itself's phlegma.
2000 tons of/day dry pulverized coal pressurizing gasifying apparatus, vapor pressure are 4.0MPa, and gasification temperature is 1400 ~ 1600 ℃, and raw gas butt flow is 73000Nm
3/ h, wet basis flow are 187500Nm
3It is 221 ℃ that/h, raw gas go out gasifier temperature.Entering one-level Venturi scrubber 1 from the raw gas of vapourizing furnace washs, enter one-level Venturi separator 2 after the washing and carry out gas-liquid separation, entering secondary Venturi scrubber 3 from the air outlet raw gas out of one-level Venturi separator 2 washs, enter secondary Venturi separator 4 after the washing and carry out gas-liquid separation, by fully wetting, macrobead is washed to separate and removes from the air outlet raw gas out dust wherein of secondary Venturi separator 4; Then entering part condenser 5 carries out condensation, and this raw gas temperature reduces, thus the further dust in the raw gas is wetting, reunion and out settlement separate; Clean with being built in ducted high-pressure atomization shower nozzle 6 from the air outlet raw gas out of described fractional distillating tube 5.The spouting of liquid direction of described high-pressure atomization shower nozzle 6 and be 0 ° from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.The high 8MPa of pressure in the pressure ratio of described high-pressure atomization shower nozzle 6 and the pipeline that described fractional distillating tube 5 air outlets link to each other.The tiny drop of described high-pressure atomization shower nozzle 6 generations can adsorb more tiny dust wetting and reunite with getting up; Raw gas after the cleaning enters in the described unstripped gas separating tank 7 and separates, and the dust in the raw gas is washed to separate with drop remove; Then enter multiplefactor cyclonic separator 8, further remove dust and drop in the raw gas.
Through above-mentioned raw gas scrubbing device, the dustiness in the raw gas that obtains is less than 1mg/m
3, meet the requirement of subsequent technique (transformation system) fully.
Described raw gas scrubbing device is substantially the same manner as Example 3, is 180 ° except the spouting of liquid direction of described high-pressure atomization shower nozzle 6 and from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.
Through above-mentioned raw gas scrubbing device, the dustiness in the raw gas that obtains is less than 1mg/m
3, meet the requirement of subsequent technique (transformation system) fully.
Described raw gas scrubbing device is substantially the same manner as Example 3, is 60 ° except the spouting of liquid direction of described high-pressure atomization shower nozzle 6 and from the angle between the raw gas air flow line of described fractional distillating tube 5 air outlets.
Through above-mentioned raw gas scrubbing device, the dustiness in the raw gas that obtains is less than 1mg/m
3, meet the requirement of subsequent technique (transformation system) fully.
It will be understood by those skilled in the art that under the instruction of this specification sheets, can make some modifications or variation to the utility model.These modifications and variations also should be within the utility model claim limited range.
Claims (10)
1. the raw gas scrubbing device in the powdered coal pressuring gasified system, described washing device comprises the following equipment that links to each other by pipeline: the one-level Venturi scrubber, the one-level Venturi separator that carries out gas-liquid separation that links to each other with the outlet of described one-level Venturi scrubber, the secondary Venturi scrubber that links to each other with the air outlet of described one-level Venturi separator, the secondary Venturi separator that carries out gas-liquid separation that links to each other with the outlet of described secondary Venturi scrubber, the fractional distillating tube that links to each other with the air outlet of described secondary Venturi separator, and the unstripped gas separating tank that links to each other with the air outlet of described fractional distillating tube; It is characterized in that, between described fractional distillating tube and described unstripped gas separating tank, be provided with the high pressure jet cleaning device and/or be connected with the multiplefactor cyclonic separator in the air outlet of described unstripped gas separating tank.
2. raw gas scrubbing device according to claim 1 is characterized in that, described raw gas scrubbing device comprises described high pressure jet cleaning device and described multiplefactor cyclonic separator simultaneously.
3. raw gas scrubbing device according to claim 1 and 2 is characterized in that, the spouting of liquid direction of described high pressure jet cleaning device and be 0 ° ~ 180 ° from the angle between the raw gas air flow line of described fractional distillating tube air outlet.
4. raw gas scrubbing device according to claim 3 is characterized in that, the spouting of liquid direction of described high pressure jet cleaning device and be 0 ° ~ 60 ° from the angle between the raw gas air flow line of described fractional distillating tube air outlet.
5. raw gas scrubbing device according to claim 4 is characterized in that, the high 4 ~ 8MPa of pressure in the pressure ratio of described high pressure jet cleaning device and the pipeline that described fractional distillating tube air outlet links to each other.
6. raw gas scrubbing device according to claim 5 is characterized in that, described high pressure jet cleaning device is the high-pressure atomization shower nozzle; The used atomized water of described high pressure jet cleaning device is high pressure boiler water supply.
7. raw gas scrubbing device according to claim 1 and 2 is characterized in that, described multiplefactor cyclonic separator comprises at least two whirly separators.
8. raw gas scrubbing device according to claim 1 and 2 is characterized in that, described unstripped gas separating tank is bubble-plate column, and the tower tray number of described bubble-plate column is at least one; And the top of this bubble-plate column is equipped with spiral board.
9. raw gas scrubbing device according to claim 8 is characterized in that, the tower tray number of described bubble-plate column is 3 ~ 6.
10. raw gas scrubbing device according to claim 1 and 2, it is characterized in that the liquid exit of the liquid exit of described fractional distillating tube, described unstripped gas separating tank links to each other by the washing water inlet of pipeline with described one-level Venturi scrubber, described secondary Venturi scrubber with the liquid exit of described multiplefactor cyclonic separator; Come transformation into itself's phlegma to link to each other by the washing water inlet of pipeline with described unstripped gas separating tank; The liquid exit of described one-level Venturi separator and described secondary Venturi separator links to each other with the black water flash system by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220445101.6U CN202786143U (en) | 2012-09-03 | 2012-09-03 | Raw gas washing device in pressurized gasification system of powdered coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220445101.6U CN202786143U (en) | 2012-09-03 | 2012-09-03 | Raw gas washing device in pressurized gasification system of powdered coal |
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| Publication Number | Publication Date |
|---|---|
| CN202786143U true CN202786143U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220445101.6U Expired - Lifetime CN202786143U (en) | 2012-09-03 | 2012-09-03 | Raw gas washing device in pressurized gasification system of powdered coal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342213A (en) * | 2013-08-01 | 2015-02-11 | 西门子公司 | Dust separation from the crude gas of an entrained flow gasifier |
-
2012
- 2012-09-03 CN CN201220445101.6U patent/CN202786143U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104342213A (en) * | 2013-08-01 | 2015-02-11 | 西门子公司 | Dust separation from the crude gas of an entrained flow gasifier |
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