CN204779506U - High temperature dust -laden coal gas dust removal purification system - Google Patents
High temperature dust -laden coal gas dust removal purification system Download PDFInfo
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- CN204779506U CN204779506U CN201520119304.XU CN201520119304U CN204779506U CN 204779506 U CN204779506 U CN 204779506U CN 201520119304 U CN201520119304 U CN 201520119304U CN 204779506 U CN204779506 U CN 204779506U
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Abstract
The utility model discloses a retrieve the little high temperature dust -laden coal gas dust removal purification system of influence to follow -up coal gas. The utility model discloses a high temperature dust -laden coal gas dust removal purification system includes high -temperature gas filter equipment and the blowback device that is used for carrying on the blowback deashing to high -temperature gas filter equipment's filter element, the blowback device is one and used hot steam right as the blowback medium the filter element carries out the blowback device of blowback deashing. Crossing hot steam after the blowback and will following the high -temperature gas filter equipment discharge along with filtering gas, because the high -temperature gas filter equipment combustion gas generally still will pass through the oily step of cooling receipts, the steam in here step in the coal gas can be appeared with oil together, so can not lead to the fact the influence to the follow -up recovery of coal gas, receipts are oily even if the high -temperature gas filter equipment combustion gas does not carry out the supercooling, and the separation of steam and coal gas is also very easy, so the recovery influences very for a short time to follow -up coal gas.
Description
Technical field
The utility model relates to a kind of high temperature dust coal gas dust removal purification system.
Said high temperature dust coal gas generally refers to that temperature (also can be more than 250 DEG C or 300 DEG C), come from the furnace gas of the Industrial Stoves such as coal conversion stove, In The Sub-mergedfurnace of The Ferroalloys more than 200 DEG C.Wherein, described coal conversion stove can be coal gas retort, also can be the coal conversion Industrial Stoves such as coal gasification furnace.
Background technology
To the udst separation that above-mentioned high temperature dust coal gas generally adopts mechanical dust collector (mainly gravitational precipitator or tornado dust collector) or electric precipitator to carry out under hot conditions at present.But in view of above-mentioned means dust removing effects is not good, the applicant advocates to adopt high temperature air filtration device to carry out filtration, purification.In high temperature air filtration device, resistant to elevated temperatures filtering element is installed, higher efficiency of dust collection can be reached by the filtering accuracy improving filtering element.But in order to keep the perviousness of filtering element, need regularly to carry out reverse gas cleaning by back-blowing device to filtering element.Back-blowing device uses nitrogen or rare gas element to be blowback medium at present, though security when can ensure blowback, can dilute, and use cost is also higher to follow-up coal gas to be recycled.
Utility model content
Technical problem to be solved in the utility model is to provide and a kind ofly affects little high temperature dust coal gas dust removal purification system to follow-up coal-gas recovering.
High temperature dust coal gas dust removal purification system of the present utility model comprises high temperature air filtration device and the back-blowing device for carrying out reverse gas cleaning to the filtering element of high temperature air filtration device, and described back-blowing device is a back-blowing device using superheated vapour as blowback medium, described filtering element to be carried out to reverse gas cleaning.
Because back-blowing device uses superheated vapour to carry out reverse gas cleaning as blowback medium to described filtering element, superheated vapour heat is higher (when steam temperature exceedes the temperature of saturation under its relevant pressure, be called superheated vapour), filtering element should not be caused during blowback to lower the temperature the tar in coal gas or other material that easily condenses are separated out thus contamination and plugging filtering element; After blowback, superheated vapour will be discharged from high temperature air filtration device with filtering gas, because high temperature air filtration device expellant gas generally also will receive the step of oil through overcooling, water vapor in this step in coal gas can be separated out together with oil, therefore can not impact the subsequent recovery of coal gas, even if high temperature air filtration device expellant gas does not carry out overcooling receive oil, water vapor is also very easy with being separated of coal gas, therefore very little on follow-up coal-gas recovering impact.
Be described further below in conjunction with the drawings and specific embodiments.The aspect that the utility model is additional and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structural representation of high temperature dust coal gas dust removal purification system embodiment of the present utility model.
Embodiment
As shown in Figure 1, high temperature dust coal gas dust removal purification system comprises high temperature air filtration device 100 and the back-blowing device 200 for carrying out reverse gas cleaning to the filtering element 110 of high temperature air filtration device 100, wherein, (described coal conversion stove can be coal gas retort to the gas input port connection coal conversion stove to be filtered of high temperature air filtration device 100, also can be the coal conversion Industrial Stoves such as coal gasification furnace) or In The Sub-mergedfurnace of The Ferroalloys, the delivery port of filtering gas of high temperature air filtration device 100 connects gas cooling oil recovery system 300 by pipeline, the coal gas delivery port of described gas cooling oil recovery system 300 connects coal gas stocking system, above-mentioned back-blowing device 200 comprises by blowback media stock feedway, first heat-exchanger rig 210, second heat-exchanger rig 220, superheated vapour storing unit 230, the blowback media stock heating dispatch stream that blowback control valve 240 and blowback medium winding-up assembly 250 are in turn connected to form, described first heat-exchanger rig 210 specifically adopts waste heat boiler, the heat heating that second heat-exchanger rig 220 specifically uses an electric heating element or fuel combustion to produce flows through the blowback media stock of the second heat-exchanger rig, the an electric heating element that the water vapor for storing it heats also is provided with in described superheated vapour storing unit 230, described gas cooling oil recovery system 300 specifically comprises surge tank 310, ammonia spray tower 320, profit holding tank 330, the inlet mouth of described surge tank 310 is connected with the delivery port of filtering gas of high temperature air filtration device 100, the venting port of surge tank 310 is connected with the gas input port to be cooled of the first heat-exchanger rig 210, the delivery port of cooling gas of the first heat-exchanger rig 210 is connected with ammonia spray tower 320, and the coal gas delivery port of ammonia spray tower 320 connects coal gas stocking system, in addition, first heat-exchanger rig 210 is also provided with water-in and heating steam delivery port, water-in is connected with blowback media stock feedway, this blowback media stock feedway provides deionized water to the first heat-exchanger rig 210, and the delivery port of heating steam of the first heat-exchanger rig 210 is connected with the second heat-exchanger rig 220.In addition, described superheated vapour storing unit 230 is also connected with drain valve group 231, automatically can carry out draining to the superheated vapour in superheated vapour storing unit 230 by this drain valve group 231, guarantee that not bringing dew into enters in blowback medium winding-up assembly 250.
The working process of above-mentioned high temperature dust coal gas dust removal purification system is: the high temperature dust coal gas from coal conversion stove or In The Sub-mergedfurnace of The Ferroalloys is entered in high temperature air filtration device 100 and filtered by the carrying out of its filtering element 110, filtering gas is discharged from high temperature air filtration device 100 and is entered surge tank 310 successively, first heat-exchanger rig 210 (waste heat boiler), what cooling ammonia spray tower 320 carries out, coal gas input coal gas stocking system after the cooling that ammonia spray tower 320 is discharged, surge tank 310, first heat-exchanger rig 210 (waste heat boiler) and ammonia spray tower 320 bottom collection to profit enter profit holding tank 330, in high temperature air filtration device 100 operational process, periodically carry out reverse gas cleaning by back-blowing device 200 pairs of filtering elements 110, in back-blowing device 200, deionized water from blowback media stock feedway changes water vapor into by the heating of the first heat-exchanger rig 210 (waste heat boiler), then be stored in superheated vapour storing unit 230 by producing stable superheated vapour after the second heat-exchanger rig 220 further heating, superheated vapour storing unit 230 also can heat the water vapor that it stores further, blowback is started by opening blowback control valve 240, superheated vapour sprays from blowback medium winding-up assembly 250 and acts on the filtering element 110 in high temperature air filtration device 100, filtration condition is returned to after blowback terminates, superheated vapour will be discharged from high temperature air filtration device 100 with filtering gas, last separate out with the high boiling points such as the tar in the coal gas material that easily condenses and enter profit holding tank 330 in gas cooling oil recovery system 300, guaranteeing the concentration of final gas recovery.
Embodiment 1
The gas input port to be filtered of high temperature air filtration device 100 connects Coal at Low Temperature gas retort, the gas temperature average out to about 530 DEG C of this high temperature air filtration device 100 filtering gas delivery port, thus be superheated vapour by the first heat-exchanger rig 210 (waste heat boiler) by deionized water direct heating, then produce highly stable superheated vapour afterwards by the further heating of the second heat-exchanger rig 220 to be stored in superheated vapour storing unit 230, and by electrical heating element heat preservation.During blowback, blowback medium winding-up assembly 250 sprays that temperature is about 450 DEG C, pressure is the superheated vapour of 0.6 to 0.8MPa.
Claims (10)
1. high temperature dust coal gas dust removal purification system, comprise high temperature air filtration device (100) and carry out the back-blowing device (200) of reverse gas cleaning for the filtering element (110) to high temperature air filtration device (100), it is characterized in that: described back-blowing device (200) is the back-blowing device using superheated vapour as blowback medium, described filtering element (110) to be carried out to reverse gas cleaning.
2. high temperature dust coal gas dust removal purification system as claimed in claim 1, it is characterized in that: described back-blowing device (200) comprises by blowback media stock feedway, first heat-exchanger rig (210), second heat-exchanger rig (220), superheated vapour storing unit (230), the blowback media stock heating dispatch stream that blowback control valve (240) and blowback medium winding-up assembly (250) are in turn connected to form, the filtering gas that described first heat-exchanger rig (210) uses high temperature air filtration device (100) to discharge is the blowback media stock that thermal source indirect heating flows through the first heat-exchanger rig (210).
3. high temperature dust coal gas dust removal purification system as claimed in claim 2, is characterized in that: described blowback media stock feedway is deionized water to the blowback media stock that the first heat-exchanger rig (210) provides.
4. high temperature dust coal gas dust removal purification system as claimed in claim 2 or claim 3, is characterized in that: described the first heat-exchanger rig (210) adopts waste heat boiler.
5. high temperature dust coal gas dust removal purification system as claimed in claim 2 or claim 3, is characterized in that: described second heat-exchanger rig (220) uses an electric heating element heating to flow through the blowback media stock of the second heat-exchanger rig (220).
6. high temperature dust coal gas dust removal purification system as claimed in claim 2 or claim 3, is characterized in that: be provided with the heating arrangement that the water vapor for storing it heats in described superheated vapour storing unit (230).
7. high temperature dust coal gas dust removal purification system as claimed in claim 2 or claim 3, is characterized in that: described superheated vapour storing unit (230) is connected with drain valve group (231).
8. high temperature dust coal gas dust removal purification system as claimed in claim 1, is characterized in that: the gas input port to be filtered of described high temperature air filtration device (100) connects coal conversion stove or In The Sub-mergedfurnace of The Ferroalloys.
9. high temperature dust coal gas dust removal purification system as claimed in claim 1, is characterized in that: the gas input port to be filtered of described high temperature air filtration device (100) connects coal gas retort.
10. high temperature dust coal gas dust removal purification system as claimed in claim 1, is characterized in that: (delivery port of filtering gas of 100 connects gas cooling oil recovery system (300) by pipeline to described high temperature air filtration device; The coal gas delivery port of described gas cooling oil recovery system (300) connects coal gas stocking system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520119304.XU CN204779506U (en) | 2015-02-28 | 2015-02-28 | High temperature dust -laden coal gas dust removal purification system |
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| CN201520119304.XU CN204779506U (en) | 2015-02-28 | 2015-02-28 | High temperature dust -laden coal gas dust removal purification system |
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| CN204779506U true CN204779506U (en) | 2015-11-18 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970708A (en) * | 2017-11-30 | 2018-05-01 | 成都易态科技有限公司 | High-temperature dust removal ash afterheat utilizing system |
| CN109266398A (en) * | 2018-09-10 | 2019-01-25 | 无锡市华易环境科技有限公司 | The gas purification processing method and purification system of closed submerged furnace Smelting Simn In A |
| CN111318101A (en) * | 2020-03-11 | 2020-06-23 | 佛山市蓝颂科技有限公司 | Waste gas treatment equipment |
-
2015
- 2015-02-28 CN CN201520119304.XU patent/CN204779506U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107970708A (en) * | 2017-11-30 | 2018-05-01 | 成都易态科技有限公司 | High-temperature dust removal ash afterheat utilizing system |
| CN107970708B (en) * | 2017-11-30 | 2023-07-04 | 成都易态科技有限公司 | High-temperature dedusting ash waste heat utilization system |
| CN109266398A (en) * | 2018-09-10 | 2019-01-25 | 无锡市华易环境科技有限公司 | The gas purification processing method and purification system of closed submerged furnace Smelting Simn In A |
| CN111318101A (en) * | 2020-03-11 | 2020-06-23 | 佛山市蓝颂科技有限公司 | Waste gas treatment equipment |
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