CN204841198U - Compound high temperature resistant acupuncture filter felt - Google Patents
Compound high temperature resistant acupuncture filter felt Download PDFInfo
- Publication number
- CN204841198U CN204841198U CN201520400797.4U CN201520400797U CN204841198U CN 204841198 U CN204841198 U CN 204841198U CN 201520400797 U CN201520400797 U CN 201520400797U CN 204841198 U CN204841198 U CN 204841198U
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- top layer
- layer
- fire resistant
- filtering felt
- needled filtering
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Abstract
The utility model discloses a high temperature resistant, fire behaviour, mechanical properties and good, the with low costs compound high temperature resistant acupuncture filter felt of air permeability. This compound high temperature resistant acupuncture filter felt comprises top layer and bottom two parts, and the top layer is cut by the weak point that the diameter is 5-10 mu m that glass fiber is crisscross to arrange together with entwising, and constitutes and have fine -pored three dimensional structure, and the surface on top layer is the smooth surface through the calendered that singes, the bottom is that fibre web layer comprises warp and woof including fibre web layer and base cloth layer, the top layer mechanically couples through needled mode with the bottom is in the same place, and compound high temperature resistant acupuncture filter felt top layer and bottom combine for inseparable and ventilative three dimensional structure under the acupuncture effect.
Description
Technical field
The utility model relates to a kind of bag-type dusting and uses
needled filtering felt, particularly relate to a kind of complex fire resistant needled filtering felt.
Background technology
Along with the fast development of China's economy, the quickening of urbanization process, environmental problem is also more and more taken seriously.Especially in recent years, heavy industry developed rapidly as industries such as iron and steel, cement, building, metallurgy, and this problem is highlighted more.For coal-burning power plant, current China thermal power generation coal consumption is more than 1,000,000,000 tons/year, and power plant's smoke discharge amount about 4,000,000 tons/year, wherein minuteness particle (being less than 10 μm) discharge capacity is more than 3,000,000 tons/year.Because dust granules is little, surface-active is high, be easy to adsorb harmful components, the life, work etc. of the periphery mankind are brought greater impact.
The Main Means of current solution atmosphere pollution is bag-type dusting.So-called bag-type dusting is exactly adopt the filter cloth of weaving or nonwoven felt to become filter bag to carry out dust removal by filtration, the filtration of fabric is utilized to filter dusty gas, when dusty gas enters sack cleaner, large, the heavy dust of particle, because the effect of gravity settles down, fall into ash bucket, containing the gas compared with fine dusts when by filtrate, dust, by detention, makes gas be purified.Current range of application is at home and abroad more and more wider, has accounted for 80% of cleaner used.In view of the stability under high temperature is the guarantee that filter bag normally uses, the base material multiselect exotic material of filter bag, high-temperature filter material conventional at present has polyphenylene sulfide (PPS), aramid fiber (PMIA), PSA fiber (PSA), glass fibre (GF) and polytetrafluoroethylene fibre (PTFE) etc.
Although common single PPS, PMIA, PSA high-temperature filter material possesses good resistance to elevated temperatures, but its fire resistance, mechanical performance and permeability is not in high temperature environments given prominence to, be still faced with in actual application and manyly burnt the danger of damage.Such as at coal dust dry kiln, because dried pulverized coal particle is not only thin but also glutinous, ash-removal effect is undesirable, thus make filter bag top layer adhere to a large amount of dry coal dusts, the burning-point of these dry coal dusts is lower again, after high-temperature flue gas enters deduster, be easy to the dry pulverized coal just lighting filter bag top layer, and then cause the burning of whole filter bag; Mars in addition in flue gas also can be burnt to filter bag, as coke oven, dry kiln, blast furnace, mixed iron blast etc. can produce a large amount of Mars, as not in place to Mars process, when especially filter bag surface dust layer is thinner in process of production, filter bag will burn by Mars, forms irregular round hole etc.
The burning of filter bag directly causes the damage of filter bag, and whole filtration system paralysis, need to change filter bag in time, and the maintenance cost of filter bag accounts for significant proportion inside deduster, reaches as high as more than 70%, causes operating cost to rise sharply.Effective flame-proof treatment is carried out to filter bag, prevents it from burning in high temperature environments, increase the service life, thus reduce operating cost and realize the larger using value of filter bag and seem particularly important.
Summary of the invention
In order to prevent needled filtering felt from burning when filtering high-temperature flue gas, the utility model provide a kind of high temperature resistant, fire resistance, mechanical performance and permeability are excellent, the complex fire resistant needled filtering felt that cost is low.
The technical scheme that the utility model adopts is: complex fire resistant needled filtering felt, be made up of top layer and bottom two large divisions, top layer is that the short glass fiber being 5 ~ 10 μm by diameter is arranged together with interlocking entanglement, and form the punctulate three-dimensional-structure of band, and the outer surface on top layer is through the smooth surface of press polish process of singing; Bottom comprises web layer and base cloth layer, and web layer is made up of warp thread and weft yarn; Top layer and bottom are mechanically linked together by the mode of acupuncture, and acupuncture is the base cloth layer end of glass fibre being stung bottom, and under needling action, complex fire resistant needled filtering felt top layer and bottom are combined into tight and ventilative three-dimensional structure.
After described complex fire resistant needled filtering felt is through the ptfe emulsion dipping being added with fire retardant, the fill gaps of complex fire resistant needled filtering felt inside has fire retardant and polytetrafluoroethylene fibre.
The top layer of complex fire resistant needled filtering felt is dust-collecting face, and the outer surface on top layer is through the smooth surface of press polish process of singing.By press polish process of singing, the filoplume on the surface being suspended in complex fire resistant needled filtering felt is burnt, improve surface texture, make its flat smooth, be easy to deashing.
The short glass fiber structure that the top layer of complex fire resistant needled filtering felt is is 5 ~ 10 μm by diameter is disordered arrangements, all there is staggered entanglement in different directions in glass fibre, without obvious homoplasy, and form the punctulate three-dimensional-structure of band, and after the ptfe emulsion dipping being added with fire retardant, fire retardant has good synergy to through ptfe emulsion impregnated complex fire resistant needled filtering felt, makes its isotropic higher.
Web layer is by resistant to elevated temperatures fibrous, under needling action, form tight and ventilative three-dimensional structure.Base cloth layer is the reinforcement of filter felt, plays a part to strengthen, keep dimensional stability, and preferred described base cloth layer is fiberglass-based cloth, and it has good resistance to elevated temperatures, dimensional stability and high strength.
Preferably, the one in Al (OH) 3, Mg (OH) 2, Sb2O3, Firebrake ZB at least selected by described fire retardant.
Preferably, described web layer is a kind of fiber textile be formed by weaving at least selected in polyamides subfiber, glass fibre, asbestos and aramid fiber.
Preferably, described web layer at least selects the one in polyamides subfiber, glass fibre, asbestos and aramid fiber to be weft yarn, and select stainless steel wire as warp thread.
Preferably, described web layer at least selects the one in polyamides subfiber, glass fibre, asbestos and aramid fiber to be warp thread, and select stainless steel wire as weft yarn.
The beneficial effect of the utility model complex fire resistant needled filtering felt:
1) close structure and ventilative;
2) the outer surface flat smooth on top layer, is easy to deashing;
3) after the ptfe emulsion dipping being added with fire retardant, fire retardant has good synergy to through ptfe emulsion impregnated complex fire resistant needled filtering felt, makes its isotropic higher;
4) there is good resistance to elevated temperatures, fire resistance, dimensional stability and high strength.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structural representation of the utility model complex fire resistant needled filtering felt.
In figure, in figure, 1, the outer surface on top layer, 2, top layer, 3, glass fibre, 4, base cloth layer, 5, warp thread, 6, weft yarn, 7, acupuncture, 8, pore, 9, polytetrafluoroethylene fibre, 10, fire retardant, 11, web layer.
Detailed description of the invention
The present embodiment complex fire resistant needled filtering felt, be made up of top layer and bottom two large divisions, top layer is that the short glass fiber being 5 ~ 10 μm by diameter is arranged together with interlocking entanglement, and forms the punctulate three-dimensional-structure of band, and the outer surface on top layer is through the smooth surface of press polish process of singing; Bottom comprises web layer and base cloth layer, and web layer is made up of warp thread and weft yarn; Top layer and bottom are mechanically linked together by the mode of acupuncture, and acupuncture is the base cloth layer end of glass fibre being stung bottom, and under needling action, complex fire resistant needled filtering felt top layer and bottom are combined into tight and ventilative three-dimensional structure; After described complex fire resistant needled filtering felt is through the ptfe emulsion dipping being added with fire retardant, the fill gaps of complex fire resistant needled filtering felt inside has fire retardant and polytetrafluoroethylene fibre.
The top layer of complex fire resistant needled filtering felt is dust-collecting face, and the outer surface on top layer is through the smooth surface of press polish process of singing.By press polish process of singing, the filoplume on the surface being suspended in complex fire resistant needled filtering felt is burnt, improve surface texture, make its flat smooth, be easy to deashing.
The short glass fiber structure that the top layer of complex fire resistant needled filtering felt is is 5 ~ 10 μm by diameter is disordered arrangements, all there is staggered entanglement in different directions in glass fibre, without obvious homoplasy, and form the punctulate three-dimensional-structure of band, and after the ptfe emulsion dipping being added with fire retardant, fire retardant has good synergy to through ptfe emulsion impregnated complex fire resistant needled filtering felt, makes its isotropic higher.
Web layer is by resistant to elevated temperatures fibrous, under needling action, form tight and ventilative three-dimensional structure.Base cloth layer is the reinforcement of filter felt, plays a part to strengthen, keep dimensional stability.Described base cloth layer is fiberglass-based cloth, and it has good resistance to elevated temperatures, dimensional stability and high strength.
Al (OH) 3 selected by described fire retardant, and described web layer selects glass fibre to be warp thread, and selects stainless steel wire as weft yarn.
In another embodiment, Mg (OH) 2 selected by described fire retardant, and described web layer selects asbestos to be warp thread and weft yarn.
In another embodiment, Sb2O3 selected by described fire retardant, and described web layer selects aramid fiber to be warp thread and weft yarn.
In the embodiment that another is better, the compound flame retardant in Al (OH) 3, Sb2O3, Firebrake ZB selected by described fire retardant, and proportions is 1:2:2, makes the fire resistance of complex fire resistant needled filtering felt more excellent; Described web layer selects polyamides subfiber to be warp thread and weft yarn.
By reference to the accompanying drawings exemplary description is carried out to the utility model above; obvious realization of the present utility model is not subject to the restrictions described above; as long as have employed the various improvement that technical solutions of the utility model are carried out; or say that design of the present utility model and technical scheme are applied to other occasions, all in protection domain of the present utility model without improving.
Claims (6)
1. complex fire resistant needled filtering felt, it is characterized in that, be made up of top layer and bottom two large divisions, top layer is that the short glass fiber being 5 ~ 10 μm by diameter is arranged together with interlocking entanglement, and form the punctulate three-dimensional-structure of band, and the outer surface on top layer is through the smooth surface of press polish process of singing; Bottom comprises web layer and base cloth layer, and web layer is made up of warp thread and weft yarn; Top layer and bottom are mechanically linked together by the mode of acupuncture, and acupuncture is the base cloth layer end of glass fibre being stung bottom, and under needling action, complex fire resistant needled filtering felt top layer and bottom are combined into tight and ventilative three-dimensional structure.
2. complex fire resistant needled filtering felt according to claim 1, is characterized in that, described complex fire resistant needled filtering felt internal voids is filled with fire retardant and polytetrafluoroethylene fibre.
3. complex fire resistant needled filtering felt according to claim 1, is characterized in that described base cloth layer selects fiberglass-based cloth.
4. the complex fire resistant needled filtering felt according to claim 1 or 2 or 3, is characterized in that, described web layer is a kind of fiber textile be formed by weaving at least selected in polyamides subfiber, glass fibre, asbestos and aramid fiber.
5. the complex fire resistant needled filtering felt according to claim 1 or 2 or 3, is characterized in that, described web layer at least selects the one in polyamides subfiber, glass fibre, asbestos and aramid fiber to be weft yarn, and select stainless steel wire as warp thread.
6. the complex fire resistant needled filtering felt according to claim 1 or 2 or 3, is characterized in that, described web layer at least selects the one in polyamides subfiber, glass fibre, asbestos and aramid fiber to be warp thread, and select stainless steel wire as weft yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520400797.4U CN204841198U (en) | 2015-06-11 | 2015-06-11 | Compound high temperature resistant acupuncture filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520400797.4U CN204841198U (en) | 2015-06-11 | 2015-06-11 | Compound high temperature resistant acupuncture filter felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204841198U true CN204841198U (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520400797.4U Expired - Fee Related CN204841198U (en) | 2015-06-11 | 2015-06-11 | Compound high temperature resistant acupuncture filter felt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338496A (en) * | 2017-07-20 | 2017-11-10 | 太仓艺佳乐化纤有限公司 | A kind of heat-proof combustion-resistant chemical fibre |
| CN108611759A (en) * | 2018-05-10 | 2018-10-02 | 上海润东无纺布制品有限公司 | A kind of needle thorn hot melt two-face filtering cloth and manufacturing process |
-
2015
- 2015-06-11 CN CN201520400797.4U patent/CN204841198U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107338496A (en) * | 2017-07-20 | 2017-11-10 | 太仓艺佳乐化纤有限公司 | A kind of heat-proof combustion-resistant chemical fibre |
| CN108611759A (en) * | 2018-05-10 | 2018-10-02 | 上海润东无纺布制品有限公司 | A kind of needle thorn hot melt two-face filtering cloth and manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 Termination date: 20180611 |