CN107446598A - A kind of method for controlling coke oven coal-charging dry method dust benzo-pyrene emission - Google Patents
A kind of method for controlling coke oven coal-charging dry method dust benzo-pyrene emission Download PDFInfo
- Publication number
- CN107446598A CN107446598A CN201610377939.9A CN201610377939A CN107446598A CN 107446598 A CN107446598 A CN 107446598A CN 201610377939 A CN201610377939 A CN 201610377939A CN 107446598 A CN107446598 A CN 107446598A
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- China
- Prior art keywords
- charging
- dedusting
- dust
- dust collection
- coke oven
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B43/00—Preventing or removing incrustations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B31/00—Charging devices
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B33/00—Discharging devices; Coke guides
- C10B33/003—Arrangements for pollution-free discharge
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Public Health (AREA)
- Coke Industry (AREA)
Abstract
A kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting, the dust collection for charging is dry method dust, it is characterized in that, set dust collection for charging that program is preliminarily sprayed, in each coaling operation, coke powder is continuously sprayed into during dust collection for charging dust high speed, it is described that coke powder and dust collection for charging flue gas is preliminarily sprayed, dust is fully contacted, mixing, utilize the BaP in coke powder adsorption flue gas, being preliminarily sprayed the time every time runs at high speed with dust collection for charging and is combined, for 3~4 minutes, dust collection for charging is preliminarily sprayed ash silo and uses the dust-removing powder for leading burnt dedusting, the dust collection for charging, lead burnt dedusting and share a dedusting ash silo.According to the present invention, benzo-pyrene emission is reduced, change is simple, and cost is low, and effect is good.
Description
Technical field
The present invention relates to metallurgical coking by coke oven field, in particular it relates to coke oven coal-charging dedusting, more specifically
Ground, the present invention relates to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting.
Background technology
The technology that flue dust is taken when coke oven coal-charging dedusting is coking to improve coke oven coal-charging, was adopted mostly in the past
With wet dedusting technology, with the influence of national industrial policies upgrading and secondary pollution problem etc., dry method is progressively used
Dust collection for charging substitutes former technology.
According to 2015 implement new environmental laws and《Coking chemistry emission of industrial pollutants standard》It is it is required that right
The requirement more and more higher of coke oven coal-charging dedusting BaP control, new standard 0.3ug/m3, especially limit area
Standard is tightened up.And existing dust collection for charging uses dry method dust mostly, original combustion method is because of various reasons
Transformed, therefore it is exceeded to easily cause dust collection for charging discharge without correlation means for its control to BaP.
《Coking chemistry emission of industrial pollutants standard》It is the standard of existing coke oven discharge, it is necessary to up to standard.This hair
Bright purpose is by the basis of being preliminarily sprayed and being improved to existing dust collection for charging, using adsorption theory as according to
According to reduction dust collection for charging benzo-pyrene emission.By experiment, benzo-pyrene emission is original 1/3 under new method
Hereinafter, and other pollutions, positive effect will not be caused.
Original combustion-type dust collection for charging can reduce benzo-pyrene emission by burning, but problem be present：
(1) flue gas after burning contains acidic materials, has corrosion to more valve pipelines, need to change once within 8~10 years；
(2) phenomenon is fired, because of imperfect combustion, air quantity adjustment detonation not as good as caused by；
For this reason, it may be necessary to a kind of method and device for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting, the use
The method and device that benzo-pyrene emission is reduced when coke oven coal-charging dedusting is improved with reference to existing dust arrester, is dropped
Low benzo-pyrene emission, change is simple, and cost is low, and effect is good.
The content of the invention
To solve the above problems, the present invention provides a kind of side for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting
Method, the method that benzo-pyrene emission is reduced when being used for coke oven coal-charging dedusting are changed with reference to existing dust arrester
Enter, reduce benzo-pyrene emission, change is simple, and cost is low, and effect is good.
A kind of technical scheme for the method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention is as follows：
A kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting, the dust collection for charging remove for dry method
Dirt, it is characterised in that
Set dust collection for charging program is preliminarily sprayed, in each coaling operation, during dust collection for charging dust, to except
Dirt ash silo continuously sprays into coke powder,
In dedusting ash silo, the described coke powder that is preliminarily sprayed fully is contacted with dust collection for charging flue gas, dust, mixing,
The BaP in flue gas is adsorbed,
Each time that coke powder is preliminarily sprayed runs at high speed with dust collection for charging to be combined, and is 3~4 minutes,
Dust collection for charging is preliminarily sprayed ash silo and uses the dust-removing powder for leading burnt dedusting,
Income dust collection for charging and burnt dedusting is led in the dedusting ash silo, i.e., described dust collection for charging and leads burnt dedusting and share
One dedusting ash silo.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In the dust collection for charging is preliminarily sprayed to be done 1 time for 3~5 stoves.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In setting regulation blowing device, coke powder injection amount reaches 5.26~15.6 7m to increase coke powder injection amount3/min。
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In regulation blowing device is variable ratio frequency changer blower fan, and revolution is in 413~990/min.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In,
Described carry fully is contacted with dust collection for charging flue gas, dust, mixed, and adsorbs the BaP in flue gas
The flue gas of coke powder, dust enters pocket and carries out cloth bag pulse lavage.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In cloth bag pulse lavage program is that 3~5 stoves are done 1 time, and each burst length is 3-4 minutes.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In cloth bag pulse protocol is that 3 stoves are done 1 time.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In benzo-pyrene emission concentration≤0.3 × 10 in flue gas-3mg/Nm3。
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In flue gas, dust after cloth bag pulse lavage program are extracted out through the discharge valve below pocket ash bucket, the discharging
Valve power is 7.5Kw, 5~50Hz of frequency.
According to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention, its feature exists
In the discharge valve power is 7.5Kw, 5~50Hz of frequency.
Brief description of the drawings
Fig. 1 is the unfired dry method dust collection for charging flow chart of the present invention.
Embodiment
Embodiment
Complete the research of the control method of coke oven coal-charging dedusting flue gas BaP.Filled by experiment of 6# dust collection for charging
It is standby, regroup dust collection for charging and be preliminarily sprayed program, coke powder is preliminarily sprayed during each coaling operation, utilizes coke powder adsorption
BaP in flue gas, experiment achieve preferable effect.Through experiment and sample examination, work pattern is preliminarily sprayed
Benzo-pyrene emission concentration only has 60% before improving in flue gas after improvement, while can reach≤0.3 ×
10-3mg/Nm3 target.
BaP changes of contents is more apparent before and after transformation is preliminarily sprayed in dust collection for charging, and 0.123 μ g/m3, change before transformation
0.0738 μ g/m3 after making.
It is described to be used for Jiao according to a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting of the present invention
The method and device that benzo-pyrene emission is reduced during stove dust collection for charging is improved with reference to existing dust arrester, reduces benzene
And pyrene discharges, change is simple, and cost is low, and effect is good.
Claims (10)
1. a kind of method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting, the dust collection for charging is dry method dust, and its feature exists
In,
Set dust collection for charging that program is preliminarily sprayed, it is continuous to dedusting ash silo during dust collection for charging dust in each coaling operation
Spray into coke powder,
In dedusting ash silo, the described coke powder that is preliminarily sprayed fully is contacted with dust collection for charging flue gas, dust, mixing, adsorbs flue gas
In BaP,
Each time that coke powder is preliminarily sprayed runs at high speed with dust collection for charging to be combined, and is 3~4 minutes,
Dust collection for charging is preliminarily sprayed ash silo and uses the dust-removing powder for leading burnt dedusting,
Income dust collection for charging and burnt dedusting is led in the dedusting ash silo, i.e., described dust collection for charging and leads burnt dedusting and share a dedusting ash
Storehouse.
A kind of 2. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 1, it is characterised in that
The dust collection for charging is preliminarily sprayed to be done 1 time for 3~5 stoves.
A kind of 3. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 1, it is characterised in that
Setting regulation blowing device, coke powder injection amount reaches 5.26~15.6 7m to increase coke powder injection amount3/min。
A kind of 4. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 1, it is characterised in that
Regulation blowing device is frequency conversion fan, and revolution is in 413~990/min.
A kind of 5. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 1, it is characterised in that
Described carry fully is contacted with dust collection for charging flue gas, dust, mixed, the cigarette of the coke powder of the BaP in absorption flue gas
Gas, dust enter pocket and carry out cloth bag pulse lavage.
A kind of 6. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 5, it is characterised in that
Cloth bag pulse lavage program is that 3~5 stoves are done 1 time, and each burst length is 3-4 minutes.
A kind of 7. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 6, it is characterised in that
Cloth bag pulse protocol is that 3 stoves are done 1 time.
A kind of 8. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 1, it is characterised in that
Benzo-pyrene emission concentration≤0.3 × 10 in flue gas-3mg/Nm3。
A kind of 9. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 5, it is characterised in that
Flue gas, dust after cloth bag pulse lavage program are extracted out through the discharge valve below pocket ash bucket, and the discharge valve power is
7.5Kw, 5~50Hz of frequency.
A kind of 10. method for being used to reduce benzo-pyrene emission during coke oven coal-charging dedusting as claimed in claim 9, it is characterised in that
The discharge valve power is 7.5Kw, 5~50Hz of frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377939.9A CN107446598A (en) | 2016-05-31 | 2016-05-31 | A kind of method for controlling coke oven coal-charging dry method dust benzo-pyrene emission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610377939.9A CN107446598A (en) | 2016-05-31 | 2016-05-31 | A kind of method for controlling coke oven coal-charging dry method dust benzo-pyrene emission |
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| Publication Number | Publication Date |
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| CN107446598A true CN107446598A (en) | 2017-12-08 |
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|---|---|---|---|
| CN201610377939.9A Pending CN107446598A (en) | 2016-05-31 | 2016-05-31 | A kind of method for controlling coke oven coal-charging dry method dust benzo-pyrene emission |
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Citations (6)
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|---|---|---|---|---|
| CN101104809A (en) * | 2007-08-16 | 2008-01-16 | 鞍山市三态冶化设备材料厂 | Coal feeding and coke extracting two-in-one earth station dust removing system for coke oven |
| CN201071353Y (en) * | 2007-04-24 | 2008-06-11 | 济南钢铁股份有限公司 | Dry dust removing charging car |
| CN101602951A (en) * | 2008-06-11 | 2009-12-16 | 贺儒樑 | The side-mounted coke furnace flue gas integration dust-removal process that discharges of the coke of coalingging |
| CN101885972A (en) * | 2010-06-22 | 2010-11-17 | 攀钢集团钢铁钒钛股份有限公司 | Coke oven coal charging and pushing ground station for dust removal and dedusting technology thereof |
| CN201762281U (en) * | 2009-11-30 | 2011-03-16 | 攀钢集团钢铁钒钛股份有限公司 | Coal-charging and coke-pushing dust removal device for coke ovens |
| CN103074092A (en) * | 2013-01-30 | 2013-05-01 | 鞍山三态冶化设备有限公司 | Method for treating smoke dust leaking from coke oven door by pre-spray method |
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Patent Citations (6)
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| CN201071353Y (en) * | 2007-04-24 | 2008-06-11 | 济南钢铁股份有限公司 | Dry dust removing charging car |
| CN101104809A (en) * | 2007-08-16 | 2008-01-16 | 鞍山市三态冶化设备材料厂 | Coal feeding and coke extracting two-in-one earth station dust removing system for coke oven |
| CN101602951A (en) * | 2008-06-11 | 2009-12-16 | 贺儒樑 | The side-mounted coke furnace flue gas integration dust-removal process that discharges of the coke of coalingging |
| CN201762281U (en) * | 2009-11-30 | 2011-03-16 | 攀钢集团钢铁钒钛股份有限公司 | Coal-charging and coke-pushing dust removal device for coke ovens |
| CN101885972A (en) * | 2010-06-22 | 2010-11-17 | 攀钢集团钢铁钒钛股份有限公司 | Coke oven coal charging and pushing ground station for dust removal and dedusting technology thereof |
| CN103074092A (en) * | 2013-01-30 | 2013-05-01 | 鞍山三态冶化设备有限公司 | Method for treating smoke dust leaking from coke oven door by pre-spray method |
Non-Patent Citations (3)
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Application publication date: 20171208 |