CN203043738U - Asymmetric gradient filter material for electrostatic-bag compound dust collection - Google Patents
Asymmetric gradient filter material for electrostatic-bag compound dust collection Download PDFInfo
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- CN203043738U CN203043738U CN2013200136604U CN201320013660U CN203043738U CN 203043738 U CN203043738 U CN 203043738U CN 2013200136604 U CN2013200136604 U CN 2013200136604U CN 201320013660 U CN201320013660 U CN 201320013660U CN 203043738 U CN203043738 U CN 203043738U
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Abstract
The utility model discloses an asymmetric gradient filter material for electrostatic-bag compound dust collection. The filter material is of a three-layer compound structure and sequentially comprises a dust facing layer, a base cloth layer and a bottom layer from outside to inside, wherein the dust facing layer and the bottom layer are respectively of a crossed non-orthogonal net type structure, and the base cloth layer is of a weft and warp crossed net type structure. The dust facing layer, the base cloth layer and the bottom layer are strengthened together through the connection of spunlaces. The asymmetric gradient filter material has the advantages that the defect that 100% of PPS (polyphenylene sulfide) filter material is invalid by oxidation and chemical corrosion caused by strong oxidability and acid corrosion of smoke in electrostatic-bag compound dust collection is overcome, the oxidation resistance is improved, and the service life is prolonged; the permeability inside the filter material is achieved, the high filter efficiency is ensured, and the collecting efficiency for fine dust with the size of PM2.5 is increased; and the air permeability, breaking strength and filtering precision of the filter material are improved, the operation resistance of equipment is reduced, and the service life is greatly prolonged and can be up to 35000h in an electrostatic-bag compound project.
Description
Technical field
The utility model relates to a kind of filtrate, relates in particular to the asymmetric gradient filtrate of a kind of electricity bag composite dedusting.
Background technology
At present, in coal-fired plant flue gas bag-type dusting field, polyphenylene sulfide (Polyphenylene Sulfide, PPS) needle punched filter material is because heat resistance is good, bearing temperature is 140-190 ℃, have strong acid and alkali resistance corrosivity and be widely used, but its maximum shortcoming is that antioxidant anticorrosive is relatively poor, has limited its application in electric bag integration project.
Electric bag integration project for the coal-burning power plant, adopt electric precipitation and bag-type dusting to combine, corona discharge can produce ozone, ozone is very unstable, under high temperature and certain humidity easily and other composition in the flue gas react rapidly, particularly generate SO3, NO2 with NO, SO2 reaction, SO3, NO2 are the aggressivity oxidants, and the PPS filtrate is had very strong corrosivity.100% PPS(polyphenylene sulfide) filtrate can not reach service life because chemical attack causes powerful decline acutely.And the 100%PTFE(polytetrafluoroethylene (PTFE)) filtrate can satisfy this special working condition requirement on performance, but it is expensive, is unfavorable for large-scale popularization.
The utility model content
In view of this, be necessary to provide a kind of electricity bag composite dedusting asymmetric gradient filtrate, it has improved the restriction that pure PPS is subjected to oxygen content, and smooth surface, improve the deashing ability, reduced the running resistance of equipment, can guarantee in electric bag integration project, to reach 35000 hours service life.
The utility model is to realize like this, the asymmetric gradient filtrate of a kind of electricity bag composite dedusting, this filtrate is three layers of complex structure, it comprises from outside to inside successively meets knoisphere, base cloth layer and bottom, this is met knoisphere and this bottom and is and intersects nonopiate network structure, and this base cloth layer is that longitude and latitude intersects network structure.
As the further improvement of such scheme, meet knoisphere, base cloth layer and bottom and link reinforcing together by the water thorn.
As the further improvement of such scheme, the weight that base cloth is every square metre is 130 grams, and warp-wise density is 120/10 centimetres, and latitudinal density is 96/10 centimetres.
As the further improvement of such scheme, every square metre weight of dust-collecting face is 230 grams.
As the further improvement of such scheme, the weight that bottom is every square metre is 230 grams.
The asymmetric gradient filtrate of electricity bag composite dedusting of the present utility model has overcome the shortcoming that the flue gas oxidisability is strong, acid corrosion causes the 100%PPS filtrate to lose efficacy because of oxidation, chemical attack by force in the electric bag composite dedusting, improves oxidative resistance, increases the service life; On the other hand, adopt acupuncture and water thorn combination process, earlier through after the pre-needling, through High-Pressure Water fiber is being tangled, form higher porosity and littler micro-pore diameter, realize the transparent performance of filtrate inside, guarantee its filtration efficiency, improved the arresting efficiency to the PM2.5 fine dust.Improved gas permeability, fracture strength, the filtering accuracy of this filtering material, reduced the running resistance of equipment, improved service life greatly, can guarantee in the compound project of electricity bag, to reach 35000 hours service life.
Description of drawings
The structural representation of the asymmetric gradient filtrate of electricity bag composite dedusting that Fig. 1 provides for the utility model preferred embodiments.
Fig. 2 is the partial sectional view of the asymmetric gradient filtrate of electricity bag composite dedusting among Fig. 1, and it is for the ease of introducing the level displaying of strip off from outside to inside one by one.
Main symbol description: meet knoisphere 2, base cloth layer 1, bottom 3.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
See also Fig. 1 and Fig. 2, the asymmetric gradient filtrate of electricity bag composite dedusting that the utility model preferred embodiments provides is three layers of complex structure, and it comprises from outside to inside successively meets knoisphere 2, base cloth layer 1 and bottom 3.
Meet knoisphere 2 and be network structure, adopt the nonopiate net form formula of intersection.Bottom 3 with meet knoisphere 2 identical settings, and be network structure, adopt and intersect nonopiate net form formula.Base cloth layer 1 is network structure, is longitude and latitude crossing net form, is appreciated that the longitude and latitude intersection is equivalent to quadrature net form formula.
This is met knoisphere 2 and adopts PTFE fiber and the blending of PPS superfine fibre, and wherein the part by weight of PTFE fiber is 30-70%; The PTFE long filament longitude and latitude of this base cloth layer 1 employing 100% is interwoven; This bottom 3 adopts PTFE fiber and PPS fiber blend to form, and wherein the part by weight of PTFE fiber is 30-70%.PPS superfine fibre blending specification in this dust-collecting face is 0.7-1.1dtex*51mm, and the PPS fiber blend specification of this bottom is 2.2-3dtex*51mm.
This is met knoisphere 2 and is nonopiate web frame with this bottom 3, and this base cloth layer 2 is longitude and latitude crossing net structure, and this is met knoisphere 2, this base cloth layer 2 and this bottom 3 and links reinforcing together by the water thorn.Wherein, this to meet knoisphere 2 every square metre weight be 230 grams; This bottom 3 weight of every square metre are 230 grams; This base cloth layer 1 weight of every square metre is the 120-150 gram.
The asymmetric gradient filtrate of electricity bag composite dedusting of the present utility model is avoided the shortcoming that the electricity bag is powerful low, filtering accuracy is low of needled conventionally method preparation, has improved electric bag fracture strength, filtering accuracy, reduces the running resistance of equipment, increases the service life.That is to say, the asymmetric gradient filtrate of electricity bag composite dedusting of the present utility model has improved the restriction that pure PPS is subjected to oxygen content, and smooth surface, improves the deashing ability, reduce the running resistance of equipment, can guarantee in electric bag integration project, to reach 35000 hours service life.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1. asymmetric gradient filtrate of electricity bag composite dedusting, it is characterized in that this filtrate is three layers of complex structure, it comprises from outside to inside successively meets knoisphere, base cloth layer and bottom, this is met knoisphere and this bottom and is and intersects nonopiate network structure, and this base cloth layer is that longitude and latitude intersects network structure.
2. the asymmetric gradient filtrate of electricity bag composite dedusting as claimed in claim 1 is characterized in that: meet knoisphere, base cloth layer and bottom and link reinforcing together by the water thorn.
3. the asymmetric gradient filtrate of electricity bag composite dedusting as claimed in claim 1, it is characterized in that: the weight that base cloth is every square metre is 130 grams, and warp-wise density is 120/10 centimetres, and latitudinal density is 96/10 centimetres.
4. the asymmetric gradient filtrate of electricity bag composite dedusting as claimed in claim 1, it is characterized in that: every square metre weight of dust-collecting face is 230 grams.
5. the asymmetric gradient filtrate of electricity bag composite dedusting as claimed in claim 1, it is characterized in that: the weight that bottom is every square metre is 230 grams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200136604U CN203043738U (en) | 2013-01-11 | 2013-01-11 | Asymmetric gradient filter material for electrostatic-bag compound dust collection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013200136604U CN203043738U (en) | 2013-01-11 | 2013-01-11 | Asymmetric gradient filter material for electrostatic-bag compound dust collection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043738U true CN203043738U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013200136604U Expired - Lifetime CN203043738U (en) | 2013-01-11 | 2013-01-11 | Asymmetric gradient filter material for electrostatic-bag compound dust collection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203043738U (en) |
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2013
- 2013-01-11 CN CN2013200136604U patent/CN203043738U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 230011 Anhui city in Hefei Province, the new station thirty Patentee after: ANHUI YUAN CHEN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 230011 Anhui city in Hefei Province, the new station thirty Patentee before: ANHUI YUANCHEN ENVIRONMENTAL PROTENTION SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |