CN100441270C - Adhesive flume absorbable grain purification method and its device - Google Patents
Adhesive flume absorbable grain purification method and its device Download PDFInfo
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- CN100441270C CN100441270C CNB2005100111626A CN200510011162A CN100441270C CN 100441270 C CN100441270 C CN 100441270C CN B2005100111626 A CNB2005100111626 A CN B2005100111626A CN 200510011162 A CN200510011162 A CN 200510011162A CN 100441270 C CN100441270 C CN 100441270C
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- Prior art keywords
- sack cleaner
- dust
- flue
- flue gas
- filter material
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000000746 purification Methods 0.000 title claims abstract description 10
- 239000000853 adhesive Substances 0.000 title abstract description 8
- 230000001070 adhesive effect Effects 0.000 title abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 56
- 229910052742 iron Inorganic materials 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000843 powder Substances 0.000 claims abstract description 25
- 238000007664 blowing Methods 0.000 claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 29
- 239000003546 flue gas Substances 0.000 claims description 29
- 239000003463 adsorbent Substances 0.000 claims description 22
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000008188 pellet Substances 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 abstract description 24
- 239000010881 fly ash Substances 0.000 abstract 2
- 239000013618 particulate matter Substances 0.000 abstract 2
- 239000003344 environmental pollutant Substances 0.000 abstract 1
- 239000003517 fume Substances 0.000 abstract 1
- 231100000719 pollutant Toxicity 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 239000003595 mist Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 239000012429 reaction media Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The present invention relates to a method for purifying the absorbable particulate matter of adhesive flume and a device thereof, which relates to the technical field of fume purification and dust removal. The device of the present invention comprises a circulating powder barn, a dust blowing valve, an iron flyash feeder, a bag type dust collector and a dust transporting blower. The device of the present invention is characterized in that a dust barn arranged on the lower part of the bag type dust collector is connected with an inlet of the dust transporting blower through pipelines, an outlet of the dust transporting blower is connected with an inlet of the circulating powder barn, and an outlet of the circulating powder barn is connected with the dust blowing valve; the dust blowing valve is arranged on one end opening of the flue inlet section of the bag type dust collector, and the iron flyash feeder is arranged on the flue inlet section; the upper lateral part of the bag type dust collector is provided with a flue outlet, and a filter material layer is arranged in the bag type dust collector. The method of the present invention can protect the dust collector, and meanwhile, can increase dust removing efficiency, absorb adhesiveness powder dust, and have a synergy removing function for primary particulate matter and precursors of secondary pollutants. The device realizing the method has the advantages of simple structure, convenient operation and reliable and safe operation.
Description
Technical field
The present invention relates to gas cleaning and dedusting technology field, particularly to the purification method and the device thereof of adhesiveness flue gas pellet.
Background technology
Discharged flue gas contains a large amount of pernicious gases in the industrial processes, especially not only contains a large amount of primary particulates in the flue gas that burning produces, and comprises SO
2, NO
X, organic pollution such as heavy metal and polycyclic aromatic hydrocarbon the presoma of secondary pollution also a large amount of enter atmosphere with flue gas, the control problem of pellet PM10 and PM2.5 also is subjected to paying close attention to more widely gradually.Along with the proposition of the mankind to more harmful components control criterions in the ambient air, the air contaminant treatment solution that proposes general equilibrium is imperative.
Contain mist of oil in the flue gas that oil burning boiler gives off, make dust have certain adhesiveness, also also have coal dust and tar in the coke oven discharged flue gas, belong to adhesive dust, wherein all contain multiple pernicious gas and pellet.For sack cleaner, adhesive dust easily causes " sticking with paste bag " phenomenon; And for electrostatic precipitator, the adhesive dust that accumulates on the pole plate is difficult for being come off by rapping, thus the sealing electric field.In the prior art; adopt dusting device that a certain amount of inhalant is sprayed into sack cleaner; selected powder only can play the effect of protection deduster at adhesive dust, the presoma and the pellet of primary particulate, second particle thing effectively can not be removed.
Summary of the invention
At above-mentioned problems of the prior art, the purpose of this invention is to provide a kind of purification method and device thereof to adhesiveness flue gas pellet.This method can improve efficiency of dust collection, absorption adhesive dust in the protection deduster, multiple primary particulate, secondary pollution presoma are had the cooperation-removal effect.The apparatus structure of realizing this method is simple, easy to operate, safe and reliable to operation.The present invention is convenient to the transformation of existing apparatus and is easy to promote.
In order to realize above-mentioned goal of the invention, technical scheme of the present invention realizes as follows:
A kind of purification method to adhesiveness flue gas pellet, its key step is:
1. before boiler or burner operation, in sack cleaner, spray into the adsorbent powder in advance, make the filter material layer surface of filter bag type deduster adhere to one deck adsorbent earlier, form and remove the agent layer;
2. the adhesiveness flue gas that comes out by combustion apparatus, adsorbent via the ejection of the flue entrance Duan Shiyu soot-blowing valve of sack cleaner carries out premixed, mix with the iron ash that drops into by the iron ash feeder again, after carrying out preliminary collision, absorption, reunion and series of physical chemical reaction mutually, enter in the sack cleaner;
3. form on the sack cleaner filter material layer remove the agent layer continue with flue gas in the primary particulate that is not removed and the presoma reaction of second particle thing, the presoma of primary particulate and second particle thing is further removed;
4. sack cleaner is carried out deashing control, make attached to the adsorbent powder on the filter material layer and be eliminated to the ash storehouse, bottom of sack cleaner, and be back to circulation powder storehouse through the transmitting effect of defeated grey blower fan, purify flue gas and enter atmosphere via the flue outlet of sack cleaner.
In said method, in the adsorbent of soot-blowing valve ejection with by the mixture of the iron ash of iron ash feeder input is total amount, the content of iron ash is in 20%～30% scope, and at any time according to the addition of inlet flue gas detection case control iron ash.
Realize the device of said method, it comprises circulation powder storehouse, soot-blowing valve, iron ash feeder, sack cleaner and defeated grey blower fan.Its design feature is that the ash storehouse, bottom of described sack cleaner is connected with the import of described defeated grey blower fan by pipeline.The outlet of defeated grey blower fan is connected with the import in described circulation powder storehouse, and the outlet in circulation powder storehouse is connected with described soot-blowing valve.Soot-blowing valve places the port of the flue entrance section of sack cleaner, and described iron ash feeder is set on the flue entrance section.The upper lateral part of sack cleaner is provided with flue outlet, and sack cleaner is built-in with filter material layer.
In said apparatus, described filter material layer adopts coated filter material.
The present invention compared with prior art has the following advantages and good effect:
(1) before sack cleaner feeds flue gas, sprays one deck on the filtrate in sack cleaner in advance and remove the agent material, make this layer material play a protective role, avoid adhesive dust directly to contact and cause damage with filter material surface to filtrate.
(2) the flue entrance section before sack cleaner sprays into adsorbent, and absorbent particles is fully contacted with mist of oil in the flue gas, and collision mutually, absorption are also reunited, and make mist of oil partly lose adhesiveness, with the protection filtrate.
(3) adopt the reaction medium of coated filter material as sack cleaner.The structure of coated filter material and character help the carrying out with correlated response of adhering to of adsorbent, have improved removal efficiency greatly.
(4) according to the situation that sack cleaner flue entrance section flue gas is detected, the powder addition of control iron ash feeder further mixes with the agent that removes of having sneaked into.
(5) regulate the deashing frequency by the variation of sack cleaner internal resistance, thereby make the adsorbent that is attached on the filtrate can utilize filtrate as reaction medium.
(6) adsorbent is primary raw material with the trade waste, has both realized the dual purpose of discarded object renewable resources and waste recycling, the operating cost of having saved whole device again.
(7) but adsorbent and iron ash material part cycling and reutilization have improved the effective rate of utilization of material.
The present invention will be further described below in conjunction with the drawings and specific embodiments.
Description of drawings
Accompanying drawing is the structure principle chart of apparatus of the present invention.
Specific implementation method
Referring to accompanying drawing, apparatus of the present invention comprise circulation powder storehouse 1, soot-blowing valve 2, iron ash feeder 4, sack cleaner 5 and defeated grey blower fan 8.The ash storehouse 7, bottom of sack cleaner 5 is connected by the import of pipeline with described defeated grey blower fan 8, and the outlet of defeated grey blower fan 8 is connected with the import in described circulation powder storehouse 1, and the outlet in circulation powder storehouse 1 is connected with described soot-blowing valve 2.Soot-blowing valve 2 places the port of the flue entrance section 3 of sack cleaner 5, and iron ash feeder 4 is set on the flue entrance section 3.The upper lateral part of sack cleaner 5 is provided with flue outlet 9, and its inside is equipped with the filter material layer 6 that adopts coated filter material.
The use step of apparatus of the present invention is:
1. before boiler or burner operation, in sack cleaner 5, spray into a certain amount of adsorbent powder in advance, make filter material layer 6 surfaces adhere to one deck adsorbent earlier, play the effect of protection filtrate.
2. the adhesiveness flue gas that comes out by combustion apparatus, during via flue entrance section 3 and the adsorbent of soot-blowing valve 2 ejection carry out premixed, mixed before entering sack cleaner 5 with a certain amount of iron ash that drops into by iron ash feeder 4 again, after carrying out preliminary collision, absorption, reunion and series of physical chemical reaction mutually, enter in the sack cleaner 5.In adsorbent that sprays into and iron ash mixture, the content of iron ash in 20%～30% scope, and can be at any time according to the addition of inlet flue gas detection case control iron ash.
3. owing to adhered to the adsorbent powder on the filter material layer 6 of sack cleaner 5, formed one deck and removed the agent layer, primary particulate that is not removed in continuation and the flue gas and the reaction of the presoma of second particle thing reach the effect that further removes.Chemical reaction and physical absorption are carried out simultaneously in this process, and some can participate in the harmful substance such as the SO of chemical reaction in the flue gas
2, NO
x, CO
2Remove by chemical method Deng sour gas; Presoma materials such as other harmful substances such as PM10, PM2.5, heavy metal element are owing to fully contact with removing agent, and its character depends on the physical characteristic that removes agent, and removes from flue gas.
4. sack cleaner 5 is carried out deashing control, be eliminated to the ash storehouse 7, bottom of sack cleaner 5, and be back to circulation powder storehouse 1 through the transmitting effect of defeated grey blower fan 8 attached to the adsorbent powder on the filter material layer 6.Use according to removing adsorbent and iron ash in the agent that the change adjustment of chemical composition removes the recycling of agent after a period of time, recycle stock is reentered in the purifier recycle.Gained purification flue gas enters atmosphere via the flue outlet 9 of sack cleaner 5.
Facts have proved that the desulfurization of this device, nitric efficiency greater than 90%, reach more than 95% for PM10 and its removal efficiency of PM2.5 level pellet for organic removal efficiencies such as heavy metal, polycyclic aromatic hydrocarbons greater than 70%.
Claims (4)
1, a kind of purification method to adhesiveness flue gas pellet, its key step is:
1. before boiler or burner operation, in sack cleaner, spray into the adsorbent powder in advance, make the filter material layer surface of sack cleaner adhere to one deck adsorbent earlier, form and remove the agent layer;
2. the adhesiveness flue gas that comes out by combustion apparatus, adsorbent via the ejection of the flue entrance Duan Shiyu soot-blowing valve of sack cleaner carries out premixed, mix with the iron ash that drops into by the iron ash feeder again, after carrying out preliminary collision, absorption, reunion and series of physical chemical reaction mutually, enter in the sack cleaner;
3. form on the sack cleaner filter material layer remove the agent layer continue with flue gas in the primary particulate that is not removed and the presoma reaction of second particle thing, the presoma of primary particulate and second particle thing is further removed;
4. sack cleaner is carried out deashing control, make attached to the adsorbent powder on the filter material layer and be eliminated to the ash storehouse, bottom of sack cleaner, and be back to circulation powder storehouse through the transmitting effect of defeated grey blower fan, purify flue gas and enter atmosphere via the flue outlet of sack cleaner.
2, according to the described purification method of claim 1 to adhesiveness flue gas pellet, it is characterized in that, in the adsorbent of soot-blowing valve ejection with by the mixture of the iron ash of iron ash feeder input is total amount, the content of iron ash is in 20%～30% scope, and at any time according to the addition of inlet flue gas detection case control iron ash.
3, realize the device of the described purification method to adhesiveness flue gas pellet of claim 1, it comprises circulation powder storehouse (1), soot-blowing valve (2), iron ash feeder (4), sack cleaner (5) and defeated grey blower fan (8), it is characterized in that, the bottom Hui Cang (7) of described sack cleaner (5) is connected by the import of pipeline with described defeated grey blower fan (8), the outlet of defeated grey blower fan (8) is connected with the import in described circulation powder storehouse (1), the outlet in circulation powder storehouse (1) is connected with described soot-blowing valve (2), soot-blowing valve (2) places the port of the flue entrance section (3) of sack cleaner (5), described iron ash feeder (4) is set on the flue entrance section (3), the upper lateral part of sack cleaner (5) is provided with flue outlet (9), and sack cleaner (5) is built-in with filter material layer (6).
According to the described device of claim 3, it is characterized in that 4, described filter material layer (6) adopts coated filter material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111626A CN100441270C (en) | 2005-01-13 | 2005-01-13 | Adhesive flume absorbable grain purification method and its device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100111626A CN100441270C (en) | 2005-01-13 | 2005-01-13 | Adhesive flume absorbable grain purification method and its device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1803261A CN1803261A (en) | 2006-07-19 |
| CN100441270C true CN100441270C (en) | 2008-12-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100111626A Active CN100441270C (en) | 2005-01-13 | 2005-01-13 | Adhesive flume absorbable grain purification method and its device |
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| CN (1) | CN100441270C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102423599A (en) * | 2011-09-02 | 2012-04-25 | 北京龙电宏泰环保科技有限公司 | Electric bag composite purification device for integrated removal of industrially-discharged ultrafine and micro pollutants, and purification method thereof |
| CN105597491A (en) * | 2015-11-13 | 2016-05-25 | 福建南方路面机械有限公司 | Flue gas treatment device and method for asphalt stirring system |
| CN107238093B (en) * | 2017-07-18 | 2023-12-01 | 太原锅炉集团有限公司 | Adsorption denitration circulating fluidized bed boiler and operation method thereof |
| CN107497228A (en) * | 2017-09-04 | 2017-12-22 | 成都易态科技有限公司 | Gas filtration method and gas filter plant |
| CN107837619B (en) * | 2017-12-21 | 2024-04-19 | 福建省铁拓机械股份有限公司 | Environment-friendly asphalt smoke adsorption treatment device and method |
| CN108644763B (en) * | 2018-05-11 | 2024-04-09 | 清华大学 | Circulating fluidized bed boiler and operation method thereof |
| CN109821322A (en) * | 2019-03-26 | 2019-05-31 | 朝阳浪马轮胎有限责任公司 | A method of prevent discharge door of banbury mixer deduster glue oil from blocking filter bag |
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