CN2315117Y - Purifying and recovering device for coke oven gas - Google Patents
Purifying and recovering device for coke oven gas Download PDFInfo
- Publication number
- CN2315117Y CN2315117Y CN 97215971 CN97215971U CN2315117Y CN 2315117 Y CN2315117 Y CN 2315117Y CN 97215971 CN97215971 CN 97215971 CN 97215971 U CN97215971 U CN 97215971U CN 2315117 Y CN2315117 Y CN 2315117Y
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- tar
- gas
- pond
- ammonia water
- purifying
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Abstract
The utility model relates to a purifying and recovering device for coke oven gas, which comprises a cleaning and purifying part for coke oven gas, and a tar recovering part, wherein, the purifying part is manly formed in the way that an ascending pipe (1), a bridge pipe (2), a gas suction pipe (3) and a gas collecting box (4) are connected. An ammonia water nozzle (7) of a circulating ammonia water spraying pipeline (6) is communicated with the pipe walls of the bridge pipe and the gas suction pipe. The recovering part is mainly composed of a circulating ammonia water and tar refining composite tank (13) which is formed in the way that a detritus tank (14), a refining and heat dissipation separation tank (15), a tar middle tank (18) and an ammonia water middle tank (16) are communicated. The utility model has the advantages of less steel consumption, less investment, and good gas recovering and purifying effects. Thus, the utility model is a matching device for basically purifying and recovering the gas of a small coke oven.
Description
The utility model relates to a kind of coke oven gas purification and retrieving arrangement.
At present, coke-oven plant's coke-oven gas washing, purifying and retrieving arrangement commonly used has wood grid packing washing tower, indirect-cooling horizontal water-tube cooler and mechanical ammonia water and tar oil clarifying tank.Use but because these equipment all are main equipment, investment is big, cost is high, be not suitable for small-sized coke-oven plant.
The purpose of this utility model is to provide a kind of coke oven gas purification and recovering effect good, reduces equipment, the coke oven gas purification that reduces cost and retrieving arrangement again.
For achieving the above object, the utility model adopts following equipment that coke-oven gas is purified and reclaims.
This equipment comprises two parts: a part purifies part for gas washing, and another part is the tar recovery part.Gas washing purification portion branch includes upcast (1), bridge tube (2), air suction pipe (3), plenum chamber (4), centrifugal gas blower (5), cyclic ammonia water spray piping (6), ammoniacal liquor nozzle (7), tar ammonia mixed solution overflow spout (8) and firing tunnel in coking furnace pipeline (9), residual gas pipeline (10), bleeder (11), diffusing burner (12) forms, wherein the upcast (1) that is connected with coke furnace carbonization chamber of an end links to each other with air suction pipe (3) by bridge tube (2), the bottom of air suction pipe (3) communicates with plenum chamber (4), plenum chamber (4) is communicated with gas blower (5) by tail pipe before the gas blower, part tube wall on bridge tube (2) and the air suction pipe (3) and cyclic ammonia water spray piping (6) supporting ammoniacal liquor nozzle (7) be connected, one end of gas blower (5) is connected with firing tunnel in coking furnace pipeline (9), residual gas deferent (10), bleeder (11), bleeder (11) top with diffuse burner (12) and be connected.The tar recovery part is to clarify detritus pool (14) in the comprehensive pond (13) by cyclic ammonia water tar, pond (15) is separated in the clarification heat radiation, pond (16) in the middle of the ammoniacal liquor, aqua ammonia pump (17), pond (18) in the middle of the tar, heating-type tar storage pond (19), well heater (20), run-off (21), upflow tube (22), tar pump (23) is formed, wherein tar ammonia mixed solution overflow spout (8) leads in the detritus pool (14), tar pump (23), aqua ammonia pump (17) is respectively by pond (18) in the middle of pipeline and the tar, pond (16) link to each other in the middle of the ammoniacal liquor, heating-type tar storage pond (19) is by well heater (20), run-off (21), upflow tube (22) is formed, and this tar storage pond (19) links to each other by pipeline with the tar pump.
The beneficial effects of the utility model are need not to be provided with specially the gas washing cooling apparatus and washing refrigerative effect is better than stuffing washing tower.
With plenum chamber, gas blower has further improved coal gas rough purification effect as secondary gas purification dehydration detarrer.
Replaced existing mechanical ammonia water and tar oil separator tank and saved great deal of steel by cyclic ammonia water tar settling pond, ammonia water and tar oil is long in this residence time, good separating effect.
Cause need not be provided with large-scale gas purification washing plant, recovery system, and the tar storage tank has been saved investment, has been reduced cost.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is the schematic representation of apparatus that gas purification and tar reclaim.
Fig. 2 is coal-gas recovering and plenum chamber schematic representation of apparatus.
Fig. 3 is the synoptic diagram of ammonia water and tar oil separating and reclaiming device.
Fig. 4 is the sectional view of comprehensive settling pond.
As shown in Figure 1, the hot raw gas that is come out by coke furnace carbonization chamber comes out to enter into bridge tube (2) through upcast (1), during air suction pipe (3) epimere, in pipe, spray ammoniacal liquor by the higher nozzle of jet atomization degree (7), make the moisture content of coal gas cooling and the evaporation of absorption ammoniacal liquor by ammoniacal liquor evaporation heat absorption, moisture content in the coal gas is increased, fully saturated to reach coal gas and tar gas.
Through saturated coal gas through in the air suction pipe during hypomere, washing ammoniacal liquor is successively upwards sprayed by a plurality of nozzles, saturated coal gas is fully contacted with ammoniacal liquor, this moment, gas temperature can be by reducing to before saturated about 40 ℃, other compound overwhelming majority such as tar is condensed and isolates, washing chilling spray ammoniacal liquor falls back to air suction pipe water seal (24), in upflow tube enters detritus pool (14) in the cyclic ammonia water tar settling pond (13).
Be pooled to plenum chamber (4) by back about the 40 ℃ coal gas of each air suction pipe (3) cooling, continuation is by cold ammonia spray, plenum chamber (4) is pressed the design of gravity settling chamber principle of work, coal gas enters in the plenum chamber (4) that flow velocity is lowered and descending detouring passed division plate, force coal gas to pass in division plate water seal (25) water, enter the junction of plenum chamber, gas speed is lowered once more, the up thread iron filings packing layer of junction that passes through enters the preceding tail pipe of gas blower at last.Coal gas enters plenum chamber priority secondary flow velocity to be reduced suddenly, thing such as contained water, tar, dust all falls under the self gravitation effect in the plenum chamber water seal (25) in the coal gas, coal gas is when walking thread iron filings filler, water in the coal gas, tar etc. are further separated removing again, and prussiate, the sulfide part is synthesized yellow prussiate of potash by the ferric oxide of iron filings and elemental sulfur sinks to water seal.The separated thing that removes is gone into precipitation in the detritus pool (14) in the comprehensive pond of cyclic ammonia water tar by the water seal water overflow.
As shown in Figure 2, the 35 ℃ of tar overwhelming majority in the coal gas of the left and right sides that have been cooled to of being come out by plenum chamber are condensed and separate, it is boosted that coal gas enters gas blower (5), coal gas part after boosting is returned firing tunnel in coking furnace pipeline (9) and is used for coke oven self heating, a part enters quenching pipeline (27), residue fully utilizes as development project, as temporarily useless, light by the burner (12) on bleeder (11) top and to diffuse.
Coal gas is when boosting, because the blower fan action of centrifugal force, the tar in the coal gas, water is separated removing further, and the coal-tar middle oil content of coal gas this moment can be reduced to minimum.Isolated tar moisture content mixed solution is introduced the water sealed tank overflow by the drainage tube of gas fan bottom and is gone into detritus pool (14) in the comprehensive pond of cyclic ammonia water tar (13).Gas blower is provided with reserve position (32), exchanges periodically use, and cleans impeller with steam (28): the coked tar in the hub.
As shown in Figure 3-4, by the air suction pipe water seal, the ammonia water and tar oil mixed solution that the plenum chamber water seal overflows, flow into cyclic ammonia water tar by gravity flow and clarify detritus pool (14) in the comprehensive pond (13), coke tar refuse in the mixed solution sinks at the bottom of the pond gradually, mixed solution is again from flowing into ammonia water and tar oil settling pond (15) then, settling pond (15) is separated into a plurality of Xiao Chi, the ammonia water and tar oil mixed solution slowly streams at this, and a large amount of heats of bulk storage, in the process of streaming, ammonia water and tar oil separates gradually, and ammoniacal liquor floats on the tar layer gradually, stream into pond (16) in the middle of the ammoniacal liquor through heat radiation, again used as circulation cleaning ammoniacal liquor by the aqua ammonia pump extraction, tar then sinks to falling into clarification separation bottom, pond (15) gradually and leaves standstill, and is regularly stored up in the pond (19) by tar pump (23) suction tar.
Establish snakelike well heater (20) in the tar storage pond (19), tar is heated once more at this leaves standstill dehydration, flows into circulating water pool (30) behind the circulating water cooling and continues the heat radiation cooling, is extracted out by recycle pump (31) then to recycle.Tar is left standstill the water that removes, and flows into run-off (21) through upflow tube (22) and is extracted out by pump, and the tar after the dehydration is that the commodity crude tar oil is stand-by.
The above whole process that purify to reclaim for gas washing, plenum chamber wherein, cyclic ammonia water tar is clarified comprehensive pond, and tar storage pond can become other shape according to processed coal gas amount size design, can increase cooling tower or other cooling system for reducing water temperature.
Claims (4)
1, a kind of coke oven gas purification and retrieving arrangement, comprise that gas washing purifies part and tar recovery part, it is characterized in that gas washing purifies the upcast (1) that an end is connected with coke furnace carbonization chamber in the part and links to each other with air suction pipe (3) by bridge tube (2), the bottom of air suction pipe (3) communicates with plenum chamber (4), plenum chamber (4) is communicated with gas blower (5) by tail pipe before the gas blower, cyclic ammonia water spray piping (6) supporting ammoniacal liquor nozzle (7) be connected with bridge tube (2) and air suction pipe (3).
2, device according to claim 1, it is characterized in that in the tar recovery part that cyclic ammonia water tar clarifies comprehensive pond (13) and separate in the middle of pond (18) in the middle of pond (15), the tar, the ammoniacal liquor pond (16) by detritus pool (14), clarification heat radiation and be connected and form, detritus pool (14) is communicated with tar ammonia mixed solution overflow spout (8), pond (18) are connected with aqua ammonia pump (17) with tar pump (23) respectively with the middle pond of ammoniacal liquor (16) in the middle of the tar, and the other end of tar pump is connected by pipeline and heating-type tar storage pond (19).
3, device according to claim 1 is characterized in that an end of gas blower (5) is connected with firing tunnel in coking furnace pipeline (9), and residual gas pipeline (10), bleeder (11) connect, bleeder (11) top with diffuse burner (12) and be connected.
4, device according to claim 1 and 2 is characterized in that heating-type tar stores up pond (19) and is made up of well heater (20), upflow tube (22), run-off (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215971 CN2315117Y (en) | 1997-05-20 | 1997-05-20 | Purifying and recovering device for coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215971 CN2315117Y (en) | 1997-05-20 | 1997-05-20 | Purifying and recovering device for coke oven gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2315117Y true CN2315117Y (en) | 1999-04-21 |
Family
ID=33932984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215971 Expired - Fee Related CN2315117Y (en) | 1997-05-20 | 1997-05-20 | Purifying and recovering device for coke oven gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2315117Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925166A (en) * | 2012-11-19 | 2013-02-13 | 西安汇华联科科技有限公司 | Tar recovery system for coaly activated carbons of vertical internal heating retort furnace |
| CN105396847A (en) * | 2015-10-14 | 2016-03-16 | 安徽昌信生物质能源有限公司 | Biomass gas-making tar circulating cleaning device and method |
| CN110105988A (en) * | 2019-04-22 | 2019-08-09 | 宝钢工程技术集团有限公司 | Raw coke oven gas dedusting device and raw coke oven gas dedusting method |
-
1997
- 1997-05-20 CN CN 97215971 patent/CN2315117Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102925166A (en) * | 2012-11-19 | 2013-02-13 | 西安汇华联科科技有限公司 | Tar recovery system for coaly activated carbons of vertical internal heating retort furnace |
| CN105396847A (en) * | 2015-10-14 | 2016-03-16 | 安徽昌信生物质能源有限公司 | Biomass gas-making tar circulating cleaning device and method |
| CN110105988A (en) * | 2019-04-22 | 2019-08-09 | 宝钢工程技术集团有限公司 | Raw coke oven gas dedusting device and raw coke oven gas dedusting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |