CN1107697C - Coke oven smoke prevention and dust control technology and equipment thereof - Google Patents
Coke oven smoke prevention and dust control technology and equipment thereof Download PDFInfo
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- CN1107697C CN1107697C CN00136948A CN00136948A CN1107697C CN 1107697 C CN1107697 C CN 1107697C CN 00136948 A CN00136948 A CN 00136948A CN 00136948 A CN00136948 A CN 00136948A CN 1107697 C CN1107697 C CN 1107697C
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Abstract
The present invention relates to smoke and dust eliminating technology for coke ovens and equipment used in the technology. In the technology, raw gas and smoke dust which are ejected from coal charging holes and ascending tube holes of a coke oven are collected in the process of charging coal of the coke oven and are combusted at the temperature of 800 DEG C to 1100 DEG C to generate high temperature fumes; the high temperature fumes are cooled and purified by using water with the temperature of 70 DEG C to 80 DEG C to spray, and then are completely discharged after dehydration. The equipment used in the technology comprises a coke oven, a smoke dust absorbing vehicle at an oven top, a raw gas collection groove, a combination oven, a sprayed gas purifier, a cyclone centrifuge dehumidifier and an induced draft fan. The smoke and dust eliminating technology for coke ovens and the equipment used in the technology have the advantages of scientific and reasonable structure, simple design, convenient operation and complete treatment, and can eliminate more than 95% of the amount of total pollution in the process of charging coal.
Description
The coke oven environmental protection treatment process that the present invention relates to coaling, particularly a kind of coke oven smoke prevention and dust control technology and equipment thereof.
At present, under the situation that environmental issue is on the rise, country has strengthened the environmental protection dynamics, for the strategic objective of round Realization " a control two up to standard ", and the improvement that will firmly stop production of below standard enterprise.Therefore each Jiao Chang by every means, seeks effective resolution.Existing high pressure aqua ammonia sprinkling system can only eliminate flue dust about 15%, and dust-removing vehicle can only be used for side-mounted coke furnace, can not be used for pushing up the coke oven of coalingging, and efficiency of dust collection is investigated factually and can only be reached below 40%.If coke oven is below standard in a short time, then large quantities of coke ovens will be forced to stop production, and this is a tremendous loss to bank, to the industry chief commander, also be a greatly loss to the taxes and profits of country, and the workman is obtained employment etc. also has great influence simultaneously.
The purpose of this invention is to provide a kind of coke oven smoke prevention and dust control technology of gross contamination amount more than 95% that can eliminate in the process of coalingging.
Another object of the present invention provides a cover and implements above-mentioned technology equipment used.
Coke oven smoke prevention and dust control technology of the present invention is included in the coke oven coal-charging process, raw gas and flue dust that collection sprays from coke oven coal-charging hole and rising pore, at the 800-1100 ℃ of generation high-temperature flue gas that burns down, this high-temperature flue gas cools off, purifies, emptying after dewatering again by 70-80 ℃ of water spray.
Wherein, the raw gas of described collection and the combustion processes of flue dust are to utilize coke oven purified gas more than needed to do burning things which may cause a fire disaster to carry out forced burning, make coal dust, combustiblematerials and hazardous and noxious substances in the raw gas obtain burning more completely and generate CO
2And steam, thereby handled fully.
Described water spray process not only makes cooling high-temperature fume to 70-80 ℃, makes simultaneously to be suspended in dust in flue gas and to break away from gas through washing, and is further processed.
The dehydration of described 70-80 ℃ moisture gas can adopt centrifugal dewatering.
Coke oven smoke prevention and dust control technology equipment used of the present invention comprises that coke oven, furnace top smoke absorb car, raw gas pneumatic trough, roasting kiln, pouring gas purifier, whirlwind centrifuge dehumidifier and induced draft fan.
Wherein, described coke oven can be the type of furnace of shove charge of various tops and stamp charging series, coalings and the stamp charging series type of furnace as tops such as 70,66,58 types.
Described furnace top smoke absorption car comprises and by the effuser that main pipeline is connected, is provided with support between effuser and the coke oven that the support bottom is provided with roller, can walk relative with coke oven coal-charging mouth and rising pore on the track that is provided with on the coke oven.Because of general pit kiln is equipped with many row's stoke holes and upcast, but absorbing car, not coal simultaneously, so the design's flue dust can pass through travelling car by the coal order, the mouth of pipe is aimed at the raw gas that from coal filling hole and upcast, sprays in the time of to collect to the coke oven coal successively.
Described raw gas pneumatic trough is located at coke oven one side, absorbs the raw gas that absorbs car from furnace top smoke, makes its flow velocity be cushioned and obtain cooling, by pipeline raw gas is sent into roasting kiln again.
It is 00260662.3 coke oven smoke eliminating dust removing forced burning stove that described roasting kiln can adopt application number.This stove comprises the body of heater of cylindrical shell shape, is provided with the raw gas inlet in the lower end of body of heater, and the upper end is provided with the air outlet, is provided with the purified gas inlet on the body of heater between raw gas inlet and the air outlet, is distributed with explosionproof hole on body of heater, and bursting diaphragm is installed on the explosionproof hole.Wherein, on the raw gas inlet of body of heater lower end, the gas distribution double-edged fine-toothed comb can also be provided with, on body of heater, viewing window can also be provided with.
Described trickle cleaner makes high-temperature flue gas that when burning produce and sprays the recirculated water inverse motion that gets off from the top, make flue gas cool-down to 70-80 ℃, will be suspended in dust in flue gas simultaneously, enter circulating water pool through discharging of washing from the bottom, separate through post precipitation, water can continue to recycle.
Described centrifuge dehumidifier makes moisture gas gas-liquid separation by the effect of inner cyclone, and the water shoot of dust waste water through being located at the bottom discharged.
Described induced draft fan is the power resources of whole dust collecting process, makes total system form a directed dynamic flow by its air inducing effect.Described flow system flow can be 10000-14000m
3/ h.
Smoke prevention and dust control process equipment used of the present invention can also comprise with a pipeline air outlet of induced draft fan and roasting kiln inlet pipe are linked together, and magnetic valve is installed on pipeline; Pit kiln raw gas collection process is a working cycle, collects once in promptly per 12 minutes, and one time collection time is 4 minutes; When collection raw gas process begins, need bigger vacuum tightness in the system, can reach more up hill and dale the purpose of raw gas sucking-off from stoke hole.At this moment magnetic valve is opened, and the waste gas of induced draft fan and chimney air outlet enters in the roasting kiln of system and circulates, and the pressure in can equilibrium system makes equipment exempt from destruction, has prevented to contain the oxygen air again simultaneously and has been inhaled into roasting kiln in a large number, sets off an explosion.
Coke oven smoke prevention and dust control technology of the present invention and equipment thereof are scientific and reasonable, and simplicity of design is easy to operate, handle thoroughly, and the gross contamination amount in the process of coalingging can eliminated is more than 95%.
Further describe the present invention below in conjunction with drawings and Examples.
Accompanying drawing 1 is the coke oven dust process flow sheet.
Accompanying drawing 2 is that described flue dust absorbs car and raw gas pneumatic trough part-structure synoptic diagram.
Accompanying drawing 3 is described roasting kiln structural representation.
Accompanying drawing 4 is described trickle cleaner structural representation.
Accompanying drawing 5 is described whirlwind centrifuge dehumidifier structural representation.
Wherein, label 1 is a coke oven, and 2 are the hole of coalingging, 3 is upcast, and 4 is roller, and 5 is track, 6 is support, and 7 is effuser, and 8 is the raw gas pneumatic trough, 9 is roasting kiln, and 10 is water drenching device, and 11 is the whirlwind centrifuge dehumidifier, 12 is induced draft fan, and 13 is inlet mouth, and 14 is venting port, 15 is pipeline, and 16 is the roasting kiln body of heater, and 17 is the air outlet, 18 is the raw gas inlet mouth, and 19 are the purified gas inlet, and 20 is venting, 21 is bursting diaphragm, and 22 is the gas distribution double-edged fine-toothed comb, and 23 is viewing window, 24 is the high-temperature flue gas inlet mouth, and 25 is shower, and 26 is water port, 27 is inlet mouth, and 28 is inner cyclone.
As shown in Figure 1, pit kiln 1 has many row's stoke holes 2 and upcast 3, movably absorb the stoke hole of car from pit kiln one end, the raw gas (pollution coal gas) that sprays from stoke hole when handle is given the coke oven coal in proper order by rows by the discharging of the coke sucks and is installed in the raw gas pneumatic trough 8 of pit kiln one side, here the raw gas flow velocity is cushioned and is cooled to 70-80 ℃, the raw gas that is come by pneumatic trough is inhaled into roasting kiln 9 by pipeline 15, in roasting kiln 9 with from the burning simultaneously about 900 ℃ of the purified gas of coke oven, make coal dust in the raw gas like this, combustiblematerials obtains firing more completely clean processing.After raw gas is burned, the high-temperature flue gas that produces enters the bottom of water drenching device 10, and from the water coolant inverse motion under the spray of top, is cooled to about 80 ℃, the dust thing that is suspended in simultaneously in the flue dust enters circulating water pool after water washing, this water is reusable through post precipitation.Be cooled to 80 ℃ of moisture gases and after whirlwind centrifuge dehumidifier 11 dehydration, enter induced draft fan 12 and enter atmosphere, thereby finished whole smoke prevention and dust control process.
Above-mentioned coke oven smoke prevention and dust control technology equipment used comprises that coke oven 1, furnace top smoke absorb car, raw gas pneumatic trough 8, roasting kiln 9, drench gas purifier 10, whirlwind centrifuge dehumidifier 11 and induced draft fan 12.
Wherein, described coke oven is that 70 types push up the serial type of furnace of coalingging.
As shown in Figure 2, described furnace top smoke absorbs car and comprises effuser 7 relative with coke oven coal-charging mouth 2 and upcast 3 holes and that be connected by main pipeline, be provided with support 6 between effuser and the coke oven, the support bottom is provided with roller 4, can walk on the track 5 that is provided with on the coke oven.Because of general pit kiln is equipped with many row's stoke holes and upcast, but absorbing car, not coal simultaneously, so the design's flue dust can pass through travelling car by the coal order, the mouth of pipe is aimed at the raw gas that from coal filling hole and upcast, sprays in the time of to collect to the coke oven coal successively.
Described raw gas pneumatic trough 8 is located at coke oven one side, absorbs the raw gas that absorbs car from furnace top smoke, makes its flow velocity be cushioned and obtain cooling, by pipeline 15 raw gas is sent into roasting kiln 9 again.
As shown in Figure 3, can to adopt application number be 00260662.3 coke oven smoke eliminating dust removing forced burning stove to described roasting kiln.This stove comprises the body of heater 16 of cylindrical shell shape, be provided with raw gas inlet 18 in the lower end of body of heater, the upper end is provided with air outlet 17, is provided with purified gas inlet 19 on the body of heater between raw gas inlet and the air outlet, on body of heater, be distributed with explosionproof hole 20, bursting diaphragm 21 is installed on the explosionproof hole.Wherein, on the raw gas inlet of body of heater lower end, gas distribution double-edged fine-toothed comb 22 can also be provided with, on body of heater, viewing window 23 can also be provided with.
As shown in Figure 4, the high-temperature flue gas that produces when described trickle cleaner makes burning is one side entrance 24 and the recirculated water inverse motion that sprays from top spray pipe 25 from the bottom, make flue gas cool-down to 70-80 ℃, to be suspended in dust in flue gas simultaneously and discharge 26 from the bottom with water through what wash, enter circulating water pool, separate through post precipitation, water can continue to recycle.
As shown in Figure 5, described centrifuge dehumidifier makes the moisture gas gas-liquid separation that enters at inlet mouth 27 by the effect of inner cyclone 28, and the water shoot 26 of dust waste water through being located at the bottom discharged.
Described induced draft fan is the power resources of whole dust collecting process, makes total system form a directed dynamic flow by its air inducing effect.Described flow system flow is 12000m
3/ h.
Claims (10)
1, a kind of coke oven smoke prevention and dust control technology, it is characterized in that being included in the coke oven coal-charging process, raw gas and flue dust that collection sprays from coke oven coal-charging hole and rising pore, at the 800-1100 ℃ of generation high-temperature flue gas that burns down, this high-temperature flue gas cools off, purifies, emptying after dewatering again by 70-80 ℃ of water spray.
2, technology as claimed in claim 1 is characterized in that the raw gas of described collection and the combustion processes of flue dust are to utilize coke oven purified gas more than needed to do burning things which may cause a fire disaster to carry out forced burning.
3, technology as claimed in claim 1 is characterized in that described water spray process makes cooling high-temperature fume to 70-80 ℃, makes to be suspended in dust in flue gas and to break away from gas through washing.
4, technology as claimed in claim 1 is characterized in that the dehydration of described 70-80 ℃ moisture gas adopts centrifugal dewatering.
5, a cover coke oven smoke prevention and dust control technology equipment used is characterized in that comprising that coke oven, furnace top smoke absorb car, raw gas pneumatic trough, roasting kiln, pouring gas purifier, whirlwind centrifuge dehumidifier and induced draft fan.
6, equipment as claimed in claim 5 is characterized in that described coke oven is the type of furnace of shove charge of various tops and stamp charging series.
7, equipment as claimed in claim 5, it is characterized in that described furnace top smoke absorbs car and comprises effuser relative with coke oven coal-charging mouth and rising pore and that be connected by main pipeline, be provided with support between effuser and the coke oven, the support bottom is provided with roller, can walk on the track that is provided with on the coke oven.
8, equipment as claimed in claim 5 is characterized in that described raw gas pneumatic trough is located at coke oven one side, absorbs the raw gas that absorbs car from furnace top smoke, by pipeline raw gas is sent into roasting kiln again.
9, equipment as claimed in claim 5 is characterized in that it is 10000-14000m that described induced draft fan makes the system gas flow
3/ h.
10, equipment as claimed in claim 5 is characterized in that also comprising with a pipeline air outlet of induced draft fan and roasting kiln inlet pipe are linked together, and magnetic valve is installed on pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00136948A CN1107697C (en) | 2000-12-29 | 2000-12-29 | Coke oven smoke prevention and dust control technology and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00136948A CN1107697C (en) | 2000-12-29 | 2000-12-29 | Coke oven smoke prevention and dust control technology and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1296057A CN1296057A (en) | 2001-05-23 |
| CN1107697C true CN1107697C (en) | 2003-05-07 |
Family
ID=4597612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00136948A Expired - Fee Related CN1107697C (en) | 2000-12-29 | 2000-12-29 | Coke oven smoke prevention and dust control technology and equipment thereof |
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| Country | Link |
|---|---|
| CN (1) | CN1107697C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101182419B (en) * | 2007-12-04 | 2011-11-09 | 山东净化环保设备有限公司 | Coke oven smoke prevention and dust control vehicle |
| CN101457274B (en) * | 2009-01-08 | 2011-02-16 | 中国科学院力学研究所 | Explosion suppression system and method applied to steel converter gas recovery |
| CN101701703B (en) * | 2009-11-25 | 2011-07-06 | 中冶焦耐工程技术有限公司 | Residual heat utilizing technology of coke oven crude gas |
| CN102786959B (en) * | 2012-07-25 | 2016-05-11 | 高志辉 | The method that coal-charging pushing flue dust is administered in transformation of side dress coke oven three car |
| CN108504370B (en) * | 2018-05-31 | 2020-04-07 | 武汉钢铁有限公司 | Coke oven carbonization chamber smoke and dust treatment system based on coal gas quality-divided recovery |
| CN109653043A (en) * | 2019-01-23 | 2019-04-19 | 中国五冶集团有限公司 | Oven top of coke oven dust-removing vehicle rail set and installation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276939Y (en) * | 1997-02-01 | 1998-03-25 | 陈志民 | Honeycomb coke oven |
| CN2395781Y (en) * | 1999-11-09 | 2000-09-13 | 孟宪洲 | Purifying recovering device for waste gas from coke-oven |
-
2000
- 2000-12-29 CN CN00136948A patent/CN1107697C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2276939Y (en) * | 1997-02-01 | 1998-03-25 | 陈志民 | Honeycomb coke oven |
| CN2395781Y (en) * | 1999-11-09 | 2000-09-13 | 孟宪洲 | Purifying recovering device for waste gas from coke-oven |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1296057A (en) | 2001-05-23 |
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