CN101199916B - Reaction promoter for flue gas purification treatment - Google Patents
Reaction promoter for flue gas purification treatment Download PDFInfo
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- CN101199916B CN101199916B CN200610124275A CN200610124275A CN101199916B CN 101199916 B CN101199916 B CN 101199916B CN 200610124275 A CN200610124275 A CN 200610124275A CN 200610124275 A CN200610124275 A CN 200610124275A CN 101199916 B CN101199916 B CN 101199916B
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- reaction
- flue gas
- adsorption
- filter bag
- reaction promoter
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- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a reaction promoter used for purifying flue gas, which is made by combining diatomite and activated clay, with diatomite accounting for 75-85% of the total weight and activated clay accounting for 15-25% of the total weight. The invention can integrate with hydrated lime to form a membrane of certain thickness (a pre-spray reaction membrane) on the surface of a filter bag, so that hydrated lime and the flue gas can get enough time for colliding and contacting to promote sufficient reaction and adsorption of the harmful substances in the flue gas, which means the reaction and the adsorption occur on the filter bag surface, and which requires the reaction promoter to have such properties as porosity, low density and large specific surface area to ensure the sufficient time and intensity for the reaction and the adsorption; the mighty adsorption to dioxin and heavy metals require the reaction promoter to have strong adsorbing ability to ensure the sufficient and effective absorption; strong permeability and easy stripping ensures the continuity and reliability of the adsorption; absorbing the moisture together with hydrated lime ensures the working condition of the filter bag so as to prolong the service life of the filter bag; the purifying effect is good and the preparation method is simple.
Description
[technical field]
The present invention relates to a kind of reaction promoter for flue gas purification treatment.
[background technology]
The garbage burning boiler flue gas cleaning treatment method mainly contains wet processing, semidry process, dry process.Dry process---be quench reaction tower+high-efficiency cloth bag dedusting reactor, its technological process is: spray into sack cleaner with calcium hydroxide, reaction promoter after flue gas is lowered the temperature in quench tower, on the film of filter bag surface formation, react, remove sour gas, and the reaction promoter on the film adsorbs dioxin and heavy metal effectively, and dust and reaction product, adsorbate are discharged through deduster in the flue gas.Reaction promoter is a kind of dedicated substances that above-mentioned dry process adopts, in the dry process smoke processing system, play key effect, the success or failure of treatment process system have been determined, its mechanism of action is as follows: can combine with calcium hydroxide, form certain thickness film (promptly pre-spraying reaction film) on the filter bag surface, make calcium hydroxide and flue gas that abundant collision and time of contact be arranged, impel in the flue gas harmful substance fully to react and absorption, promptly allow reaction and absorption occur in the filter bag surface, promptly require reaction promoter that many skies property is arranged, density is low, the big characteristic of specific area guarantees that reaction and adsorption time and intensity are abundant; To powerful absorption such as dioxin and heavy metal, require reaction promoter that strong adsorptivity is arranged, guarantee that absorption is fully, effectively; After pre-spraying reaction film reaches certain thickness and resistance, blown down by compressed air, the new pre-spraying reaction film of regeneration requires reaction promoter strong gas permeability to be arranged, be easy to peel off, and guarantees continuity, the reliability of reacting, adsorbing; Play moisture content in the absorption flue gas with calcium hydroxide, guarantee the condition of work of filter bag, prolong the service life of filter bag.Existing reaction promoter clean-up effect is bad, uses inconveniently, is that the technical staff of garbage burning boiler gas cleaning process field thirsts for the problem that solves always.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of many skies property, low, the big characteristic of specific area of density are provided, guarantee that reaction and adsorption time and intensity are abundant; Good purification, easy to use, the simple reaction promoter for flue gas purification treatment of compounding method.
The object of the present invention is achieved like this:
A kind of reaction promoter for flue gas purification treatment, described reaction promoter be by diatomite with active white on mix the 75-85% that described diatomite is gross weight, atlapulgite is the 15-25% of gross weight
Aforesaid a kind of reaction promoter for flue gas purification treatment is characterized in that, described diatomite main chemical is noncrystal silica.
The present invention can combine with calcium hydroxide, form certain thickness film (promptly pre-spraying reaction film) on the filter bag surface, make calcium hydroxide and flue gas that abundant collision and time of contact be arranged, impel in the flue gas harmful substance fully to react and absorption, promptly allow reaction and absorption occur in the filter bag surface, promptly require reaction promoter that many skies property, low, the big characteristic of specific area of density are arranged, guarantee that reaction and adsorption time and intensity are abundant; To powerful absorption such as dioxin and heavy metal, require reaction promoter that strong adsorptivity is arranged, guarantee that absorption is fully, effectively; Strong gas permeability is arranged, be easy to peel off, guarantee continuity, the reliability of reacting, adsorbing; Absorb moisture content in the flue gas with calcium hydroxide, guarantee the condition of work of filter bag, prolong the service life of filter bag; Good purification, easy to use, compounding method is simple.
[specific embodiment]
A kind of reaction promoter for flue gas purification treatment, it is applied to dry process---and be in the garbage burning boiler flue gas cleaning treatment method of quench reaction tower+high-efficiency cloth bag dedusting reactor, it sprays into sack cleaner with calcium hydroxide, on the film of filter bag surface formation, react, remove sour gas, and the reaction promoter on the film adsorbs dioxin and heavy metal effectively, and dust and reaction product, adsorbate are discharged through deduster in the flue gas; It is mixed by a certain percentage by refining diatomite and atlapulgite, and wherein diatomite is the 75-85% of gross weight, and atlapulgite is the 15-25% of gross weight.Described diatomite, after reaching the purity that needs, granularity, mass dryness fraction etc. and requiring (can be customized to diatomite manufacturer), is prepared with atlapulgite behind broken, oven dry, correct grinding by raw ore again; Described atlapulgite, is reached the activity degree that needs, granularity, mass dryness fraction etc. and requires (can be customized to activated clay production producer) behind broken, oven dry, correct grinding by raw ore, prepares with atlapulgite again.
Diatom penus nonmetal mineral product, main chemical is noncrystal silica, examine under a microscope, diatomite manifests the various algae shapes that come in every shape, single frond size does not wait from several microns to tens microns, surfaces externally and internally is distributing numerous nanometer level microporous, has loose structure, density is low, specific area is big, absorption property is strong, property such as nontoxic and tasteless; Atlapulgite also belongs to nonmetal mineral product, has excellent decoloration performance, and stronger adsorptivity and detergence(-cy), is the ideal substitute of activated carbon.
Claims (2)
1. reaction promoter for flue gas purification treatment, described reaction promoter is to be mixed by diatomite and atlapulgite, and described diatomite is the 75-85% of gross weight, and atlapulgite is the 15-25% of gross weight.
2. a kind of reaction promoter for flue gas purification treatment according to claim 1 is characterized in that, described diatomite main chemical is noncrystal silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610124275A CN101199916B (en) | 2006-12-13 | 2006-12-13 | Reaction promoter for flue gas purification treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610124275A CN101199916B (en) | 2006-12-13 | 2006-12-13 | Reaction promoter for flue gas purification treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101199916A CN101199916A (en) | 2008-06-18 |
| CN101199916B true CN101199916B (en) | 2010-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610124275A Expired - Fee Related CN101199916B (en) | 2006-12-13 | 2006-12-13 | Reaction promoter for flue gas purification treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101199916B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101992060A (en) * | 2010-10-09 | 2011-03-30 | 红云红河烟草(集团)有限责任公司 | Decolorizing agent for cigarette essence |
| CN102824892B (en) * | 2011-06-17 | 2016-03-30 | 南京亚东奥土矿业有限公司 | A kind of remove dioxin in waste gas generated by burning garbage adsorbent, preparation method and application thereof |
| CN103341294B (en) * | 2013-06-26 | 2015-01-28 | 中国石油大学(北京) | High-temperature gas filter device and filtering method thereof |
| CN103736447A (en) * | 2014-01-03 | 2014-04-23 | 绿色动力环保集团股份有限公司 | Household garbage incineration fume treatment reaction additive |
| CN104722182A (en) * | 2015-02-04 | 2015-06-24 | 绿色动力环保集团股份有限公司 | Harmless treatment method and harmless treatment system of added reaction auxiliary agent for flue gas obtained by combusting domestic garbage |
| CN108722167B (en) * | 2017-04-20 | 2021-05-07 | 蓝鸟环境株式会社 | Dry type acid gas and dioxin treatment equipment provided with reactant recycling device |
| CN108261853B (en) * | 2018-02-28 | 2023-05-16 | 中冶焦耐(大连)工程技术有限公司 | Coke oven viscous smoke dust removing system and method for pre-spraying powder activity regeneration |
| CN108479215B (en) * | 2018-05-14 | 2024-09-10 | 南通联恒新材料有限公司 | Filter bag for incinerator post-treatment for funeral |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150963C (en) * | 1998-05-26 | 2004-05-26 | 高砂热学工业株式会社 | Air cleaning filter, process for preparing the same, and high-level cleaner |
-
2006
- 2006-12-13 CN CN200610124275A patent/CN101199916B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1150963C (en) * | 1998-05-26 | 2004-05-26 | 高砂热学工业株式会社 | Air cleaning filter, process for preparing the same, and high-level cleaner |
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| Publication number | Publication date |
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| CN101199916A (en) | 2008-06-18 |
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Granted publication date: 20100526 Termination date: 20211213 |