CN107952296A - A kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting - Google Patents
A kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting Download PDFInfo
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- CN107952296A CN107952296A CN201711006741.0A CN201711006741A CN107952296A CN 107952296 A CN107952296 A CN 107952296A CN 201711006741 A CN201711006741 A CN 201711006741A CN 107952296 A CN107952296 A CN 107952296A
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- flue gas
- sack cleaner
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- 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
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/003—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions including coalescing means for the separation of liquid
-
- 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
- B01D46/42—Auxiliary equipment or operation thereof
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/30—Alkali metal compounds
- B01D2251/304—Alkali metal compounds of sodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/402—Alkaline earth metal or magnesium compounds of magnesium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/602—Oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/606—Carbonates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/608—Sulfates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The present invention discloses a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting.Including sintering machine or pelletizing device（1）, acid mist arrester（2）, sack cleaner（3）, Benitration reactor（4）, air-introduced machine（5）, wet desulphurization device（6）, chimney（7）, further include the grey circulatory system；Acid mist arrester（2）It is arranged on sack cleaner（3）Entrance；Acid mist arrester（2）Including impacting type disperser（201）, housing（202）, partition plate（203）；The grey circulatory system uses air-introduced machine（5）Dustless heat smoke circulation afterwards, by sack cleaner（3）Powder conveying in ash bucket is to acid mist arrester（2）Entrance, then pass through impacting type disperser（201）Powder is discrete, uniformly mixed with inlet flue gas, by powder suction-operated remove smoke in acid mist.The system substitutes electrostatic precipitator with sack cleaner, to improve dust catching efficiency in flue gas, meet qualified discharge, at the same avoid follow-up desulphurization denitration equipment from blocking, fouling the problems such as, the acid mist arrester proposed and the grey circulatory system, can avoid corrosion and the paste bag of sack cleaner.
Description
Technical field
The present invention relates to a kind of collaboration of the pollutant such as sintering machine or pelletizing device exhaust gas dust, sulfur dioxide, nitrogen oxides
Purification technique, belongs to environmentally friendly Air Pollution Control field；It is how dirty more particularly to a kind of agglomerates of sintered pellets flue gas based on bag-type dusting
Contaminate thing cooperated purification system.
Background technology
Sintering machine or pelletizing device flue gas are the flue gases that a kind of sinter produces during high temperature sintering shaping.In flue gas
In addition to containing substantial amounts of dust, also it is containing sulfur dioxide, nitrogen oxides etc., its smoke characteristic：Temperature is fluctuated, fluctuation
Greatly, smoke moisture is big, and it is strong to be also easy to produce acid condensation, corrosivity.Therefore, domestic and international flue gas ash removal uses electrostatic precipitation, does not use
Bag-type dusting, the reason is that bag-type dusting easily pastes bag and filtering material corrosion during smoke condensation.
Current flue gas of sintering machine head uses electrostatic precipitator more, its main cause is that electrostatic precipitator is preferably suitable for burning
The characteristics of knot machine or pelletizing device flue gas.But with increasingly stringent, the intrinsic efficiency of electrostatic precipitator of environmental emission standard
It is difficult to meet emission request, is also difficult to reach preferable effect even if to electrostatic precipitator renovation and improving, particularly electrostatic precipitation
The outlet dust concentration of device is high, there is blocking and scale problems to follow-up desulphurization denitration equipment.In this context, proposition bag
Formula dedusting substitutes electrostatic precipitation, has novelty, because bag-type dusting is far above electrostatic precipitation to efficiency of dust collection, especially for
The removing of fine particle has significant advantage.
Although bag-type dusting easily pastes bag and filtering material corrosion during smoke condensation, with bag type dust removing technology and filter material
The progress of material, at the same for flue gas acid condensation propose preventive technical measures, applicant be regarded to solve bag-type dusting paste bag and
Etching problem, makes it possible sintering machine or pelletizing device flue gas bag-type dusting.
The key of sintering machine or pelletizing device flue gas multiple pollutant synergistic purification is flue gas ash removal, resolves dust removal problem,
Follow-up desulphurization denitration equipment can normal operation.
The content of the invention
The present invention is for existing sintering machine or pelletizing device flue gas electrostatic precipitation efficiency are low, discharge is not up to standard, to follow-up
Desulphurization denitration equipment results in blockage and the problems such as fouling, there is provided a kind of sintering machine based on bag-type dusting（Pelletizing）Flue gas pollutes more
Thing cooperated purification system.
The present invention technical solution be：A kind of agglomerates of sintered pellets flue gas multiple pollutant synergistic purification based on bag-type dusting
System, including sintering machine or pelletizing device, acid mist arrester, sack cleaner, Benitration reactor, air-introduced machine, wet desulphurization dress
Put, chimney, be sequentially connected by steel flue gas duct between them, further include the grey circulatory system；
The acid mist arrester, sack cleaner are integrated apparatus, and acid mist arrester is arranged on the entrance of sack cleaner；
The acid mist arrester includes impacting type disperser, housing, partition plate；
The ash circulatory system, is circulated using dustless heat smoke after air-introduced machine, the powder conveying in sack cleaner ash bucket is arrived
Acid mist arrester entrance, then it is by impacting type disperser that powder is discrete, uniformly mixed with inlet flue gas, the absorption by powder is made
With the acid mist in removing smoke.
According to embodiments of the present invention, the grey circulatory system includes watching glassware, defeated grey wind turbine, pipeline valve, between them
It is sequentially connected by ash conveying pipe.When flue-gas temperature is less than acid dew point, the grey circulatory system starts, and is conveyed using dustless heat smoke
Powder in ash bucket is to adsorb acid mist.
According to embodiments of the present invention, the impacting type disperser includes powder nozzle, crash panel；Powder leads to after spraying at a high speed
It is discrete to cross crash panel.
According to embodiments of the present invention, the Benitration reactor is oxidizing and denitrating ozone device or other out of stock devices.
According to embodiments of the present invention, the wet desulphurization device is spray-absorption desulfurizer, including limestone/gypsum
Method, lime method, magnesium oxide method, sodium alkali, ammonia process wet desulphurization device etc..
According to embodiments of the present invention, the sack cleaner is pulse dust cleaning class sack cleaner, including pre electrified pocket type
Deduster, electric-bag complex dust collector；Can also be conventional sack cleaner, sack cleaner filtering material is high temperature resistant, resistance to
Soda acid, corrosion-resistant, Anti-dew filter bag.
The operation principle of present system is：Sintering machine or pelletizing device flue gas use sack cleaner dedusting first, so
Denitration and desulfurization are carried out successively afterwards, to achieve the purpose that flue gas multiple pollutant collaboration is administered；Work as sintering machine（Pelletizing）Flue-gas temperature
Too low the grey circulatory system starts, and opens the grey circulatory system pipeline valve when producing condensation, using defeated grey wind turbine by nothing after air-introduced machine
Dirt heat smoke circulates, and by the powder conveying in sack cleaner ash bucket to acid mist arrester entrance, then passes through impacting type disperser
Powder is discrete, uniformly mixed with inlet flue gas, by powder suction-operated remove smoke in acid mist；When sintering machine or pelletizing
When device flue-gas temperature is higher than acid dew-point temperature, the grey circulatory system is stopped transport.
The beneficial effects of the invention are as follows：For sintering machine or pelletizing device flue gas ash removal, it is proposed that replaced with sack cleaner
For electrostatic precipitator, to improve dust catching efficiency in flue gas, meet qualified discharge, while avoid follow-up desulphurization denitration equipment
The problems such as blocking, fouling, ensure the reliable and stable operation of desulphurization denitration equipment.The acid mist arrester proposed and grey cyclic system
System, can avoid corrosion and the paste bag of sack cleaner.Electrostatic precipitator is substituted with sack cleaner, construction investment can also be reduced
And operating cost.The system can be not only used for grassroot project, it can also be used to transformation project.
Brief description of the drawings
Fig. 1 is present system figure.
Fig. 2 is grey circulatory system flow chart.
Fig. 3 is acid mist arrester structure chart.
In figure：1st, sintering machine or pelletizing device；2nd, acid mist arrester；3rd, sack cleaner；4th, denitrification apparatus；5th, air inducing
Machine；6th, wet desulphurization device；7th, chimney；8th, glassware is watched；9th, defeated grey wind turbine；10th, pipeline valve；201st, impacting type disperser；
202nd, housing；203rd, partition plate；204th, powder nozzle；205th, crash panel.
Embodiment
With reference to this figure, the present invention will be further described.
A kind of sintering machine or pelletizing device flue gas multiple pollutant synergistic purification system based on bag-type dusting proposed by the present invention
System can be not only used for grassroot project, it can also be used to transformation project.
A kind of sintering machine or pelletizing device flue gas multiple pollutant cooperated purification system based on bag-type dusting, including sintering machine
Or pelletizing device 1, acid mist arrester 2, sack cleaner 3, Benitration reactor 4, air-introduced machine 5, wet desulphurization device 6, chimney 7,
It is sequentially connected between them by steel flue gas duct；The system further includes the grey circulatory system, including watches glassware 8, defeated grey wind turbine 9 and pipeline
Valve 10.
Sintering machine or 1 flue gas of pelletizing device use 3 dedusting of sack cleaner first, then carry out Benitration reactor 4 successively
6 desulfurization of denitration and wet desulphurization device；For the acid condensation that removes smoke, acid mist arrester 2 is set in 3 entrance of sack cleaner, and
Integrated apparatus is formed with sack cleaner 3, is circulated using dustless heat smoke after air-introduced machine 5, by 3 ash bucket of sack cleaner
Powder conveying is discrete by powder to 2 entrance of acid mist arrester, then by impacting type disperser 201, is uniformly mixed with inlet flue gas,
By powder suction-operated remove smoke in acid mist.
Acid mist arrester 2 is made of impacting type disperser 201, housing 202 and partition plate 203, and impacting type disperser 201 is
It is made of powder nozzle 204 and crash panel 205, powder is discrete by crash panel 204 after spraying at a high speed.
The grey circulatory system includes watching glassware 8, defeated grey wind turbine 9, pipeline valve 10, is connected successively by ash conveying pipe between them
Connect.When flue-gas temperature is less than acid dew point, the grey circulatory system starts, and the powder adsorber acid in ash bucket is conveyed using dustless heat smoke
Mist.
Sack cleaner 3 is a kind of pulse dust cleaning class sack cleaner, and sack cleaner 3 can be conventional bag-type dusting
Device, pre electrified sack cleaner, electric-bag complex dust collector etc., sack cleaner filtering material is high temperature resistant, acid and alkali-resistance, corrosion-resistant
Filter bag.
Benitration reactor 4 is oxidizing and denitrating ozone device etc.；Oxidizing and denitrating ozone device includes distributor, mixer, smelly
Oxygen Generator.
Wet desulphurization device 6 refers to spray-absorption desulfurizer, including limestone/gypsum method, lime method, magnesium oxide method,
The wet desulphurization methods such as sodium alkali, ammonia process.
A kind of 1 flue gas multiple pollutant cooperated purification system of sintering machine or pelletizing device based on bag-type dusting uses bag first
3 dedusting of formula deduster, then carries out denitration and desulfurization successively, to achieve the purpose that flue gas multiple pollutant collaboration is administered；Work as sintering
When machine or the too low generation of 1 flue-gas temperature of pelletizing device condense, the grey circulatory system starts, and opens grey circulatory system pipeline valve 10,
Dustless heat smoke after air-introduced machine 5 is circulated using defeated grey wind turbine 9, the powder conveying in 3 ash bucket of sack cleaner is disappeared to acid mist
It is except 2 entrance of device, then by impacting type disperser 201 that powder is discrete, uniformly mixed with inlet flue gas, by the suction-operated of powder
Acid mist in removing smoke；When sintering machine or 1 flue-gas temperature of pelletizing device are higher than acid dew-point temperature, the grey circulatory system is stopped transport.
The detailed embodiment description of above-mentioned combination attached drawing is only the preferred embodiments of the invention, and still, the present invention is simultaneously
The detail being not limited in such scheme, any any modification, replacement made in the thought and principle of the present invention（It is such as wet
Method sulfur method is using limestone/gypsum method, lime method, magnesium oxide method, sodium alkali, ammonia process etc.）, the protection model in the present invention
In enclosing.
Claims (6)
1. a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting, including sintering machine or pelletizing device
（1）, acid mist arrester（2）, sack cleaner（3）, Benitration reactor（4）, air-introduced machine（5）, wet desulphurization device（6）, chimney
（7）, it is sequentially connected by steel flue gas duct between them, further includes the grey circulatory system；It is characterized in that the system uses pocket type first
Then deduster carries out denitration and desulfurization successively to agglomerates of sintered pellets flue gas ash removal；
The acid mist arrester（2）, sack cleaner（3）It is integrated apparatus, acid mist arrester（2）It is arranged on sack cleaner
（3）Entrance；
The acid mist arrester（2）Including impacting type disperser（201）, housing（202）, partition plate（203）；
The ash circulatory system, using air-introduced machine（5）Dustless heat smoke circulation afterwards, by sack cleaner（3）Powder in ash bucket
It is transported to acid mist arrester（2）Entrance, then pass through impacting type disperser（201）Powder is discrete, uniformly mixed with inlet flue gas,
By powder suction-operated remove smoke in acid mist.
2. a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting according to claim 1,
It is characterized in that the ash circulatory system includes watching glassware（8）, defeated grey wind turbine（9）, pipeline valve（10）, by defeated between them
Grey pipeline is sequentially connected.
3. a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting according to claim 1,
It is characterized in that the impacting type disperser（201）Including powder nozzle（204）, crash panel（205）.
4. a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting according to claim 1,
It is characterized in that the Benitration reactor（4）It is oxidizing and denitrating ozone device.
5. a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting according to claim 1,
It is characterized in that the wet desulphurization device（6）It is spray-absorption desulfurizer, including limestone/gypsum method, lime method, oxidation
Magnesium processes, sodium alkali, ammonia process wet desulphurization device.
6. a kind of agglomerates of sintered pellets flue gas multiple pollutant cooperated purification system based on bag-type dusting according to claim 1,
It is characterized in that the sack cleaner（3）It is pulse dust cleaning class sack cleaner, including pre electrified sack cleaner, electric bag are answered
Close deduster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006741.0A CN107952296B (en) | 2017-10-25 | 2017-10-25 | Sintered pellet flue gas multi-pollutant collaborative purification system based on bag type dust removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711006741.0A CN107952296B (en) | 2017-10-25 | 2017-10-25 | Sintered pellet flue gas multi-pollutant collaborative purification system based on bag type dust removal |
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| Publication Number | Publication Date |
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| CN107952296A true CN107952296A (en) | 2018-04-24 |
| CN107952296B CN107952296B (en) | 2020-01-14 |
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| CN201711006741.0A Active CN107952296B (en) | 2017-10-25 | 2017-10-25 | Sintered pellet flue gas multi-pollutant collaborative purification system based on bag type dust removal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621637A (en) * | 2019-01-15 | 2019-04-16 | 浙江大学 | A kind of active carbon impacting type even distribution device and the active carbon injection apparatus with the impacting type even distribution device |
| CN110652844A (en) * | 2019-11-01 | 2020-01-07 | 中冶北方（大连）工程技术有限公司 | Waste gas purification system and method for upper cover of dry section of pellet drum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161428A (en) * | 2001-11-22 | 2003-06-06 | Mitsubishi Heavy Ind Ltd | Exhaust gas processing unit of ash melting furnace |
| CN202224058U (en) * | 2011-07-30 | 2012-05-23 | 华电电力科学研究院 | Desulfurization and dust removal device for sprayed supersaturation water quicklime powder |
| CN206444401U (en) * | 2017-02-17 | 2017-08-29 | 重庆科蓝环保实业有限公司 | A kind of flying dust flue gas combination purification system for burning city domestic garbage |
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2017
- 2017-10-25 CN CN201711006741.0A patent/CN107952296B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003161428A (en) * | 2001-11-22 | 2003-06-06 | Mitsubishi Heavy Ind Ltd | Exhaust gas processing unit of ash melting furnace |
| CN202224058U (en) * | 2011-07-30 | 2012-05-23 | 华电电力科学研究院 | Desulfurization and dust removal device for sprayed supersaturation water quicklime powder |
| CN206444401U (en) * | 2017-02-17 | 2017-08-29 | 重庆科蓝环保实业有限公司 | A kind of flying dust flue gas combination purification system for burning city domestic garbage |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621637A (en) * | 2019-01-15 | 2019-04-16 | 浙江大学 | A kind of active carbon impacting type even distribution device and the active carbon injection apparatus with the impacting type even distribution device |
| CN110652844A (en) * | 2019-11-01 | 2020-01-07 | 中冶北方（大连）工程技术有限公司 | Waste gas purification system and method for upper cover of dry section of pellet drum |
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| CN107952296B (en) | 2020-01-14 |
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