CN202527008U - Polyimide and glass fiber composite filter felt - Google Patents
Polyimide and glass fiber composite filter felt Download PDFInfo
- Publication number
- CN202527008U CN202527008U CN2011205191492U CN201120519149U CN202527008U CN 202527008 U CN202527008 U CN 202527008U CN 2011205191492 U CN2011205191492 U CN 2011205191492U CN 201120519149 U CN201120519149 U CN 201120519149U CN 202527008 U CN202527008 U CN 202527008U
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- fiber
- polyimide
- layer
- glass fiber
- base cloth
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Abstract
The utility model discloses a polyimide and glass fiber composite filter felt. An upper composite fiber layer (1) and a lower composite fiber layer (3) are arranged on the upper surface and the lower surface of a base cloth layer (2), and are made in such a way that polyimide fiber and glass fiber are symmetrically stuck up by a needle machine through coarse-fine opening, mixing and carding according to certain proportion; the proportion of the polyimide fiber to the glass fiber in the composite fiber layer (1) is 40 percent of polyimide fiber and 60 percent of glass fiber; the proportion of the polyimide fiber to the glass fiber in the composite fiber layer (2) is 20 percent of polyimide fiber and 80 percent of glass fiber; and the base cloth layer (2) adopts PTFE (Polytetrafluoroethylene) base cloth. The composite felt has high efficiency, and is large in air treatment volume and long in service life, and mainly used in dust-removing equipment at kiln heads and kiln tails in the cement industry.
Description
Technical field
The utility model relates to a kind of filtering material that is used for flue dust and treating flour dust, is specifically related to a kind of polyimides (P84) and glass fibre combined filtration felt.
Background technology
Filtration temperatures such as cement carbon black blast furnace gas are about 200-250 ℃, and high reaches 300 ℃, therefore; Filtering material is extremely urgent to high temperature, target efficient, that the high load capacity direction develops, and development such as emerging industry such as power plant, waste incineration is swift and violent, the technological transformation and the progress of original heavy industry enterprise; Filtering material is had higher requirement, such as: the uniformity of filtrate, density, gas permeability; Temperature tolerance, aspects such as turbid property of corrosion resistant and outward appearance have proposed high requirement.
Existing industrial dedusting is used filtering material, mainly is divided into two big types of woven cloth and Nomexs.Nomex has the branch of chemical fibre Nomex and fiberglass needled mat again according to its raw materials used difference.Chemical fibres manufacturing machinary intensity is high, pliability is good; But it is poor that its weakness is a resistance to elevated temperatures; And glass fibre has good resistance to elevated temperatures and chemical stability, is raw-material fiberglass needled mat with it, has obtained using widely in the high-temperature dust removal filtration field of materials.But the existing glass fiber needled felt, because the glass fibre smooth in appearance, cohesive force is poor between fiber, when reality is used, tends to occur the felt emaciated face from base cloth, has not only influenced the service life of fiberglass needled mat, has also limited the raising of filtration velocity.
To the dedusting industry, be badly in need of a kind of high efficiency, handle air quantity, long-life novel filter felt greatly, to adapt to the requirement of present domestic environmental protection industry (epi) high speed development.
The utility model content
The purpose of the utility model is to overcome the deficiency of prior art, a kind of high efficiency is provided, handles air quantity, long-life P84 fiber and glass fibre combined filtration felt greatly.
For achieving the above object; The technological means that the utility model adopted is; A kind of P84 fiber and glass fibre combined filtration felt; It is characterized in that:, adopt the needing machine symmetry to paste the last composite fibre layer of processing by the thick by a certain percentage smart shredding mixing combing of P84 fiber and glass fibre and following composite fibre layer at the upper and lower surface of base cloth layer.
Preferably, the proportioning of P84 fiber and glass fibre is in the said upward composite fibre layer: the P84 fiber accounts for 40%, and glass fibre accounts for 60%.
Preferably, the proportioning of P84 fiber and glass fibre is in the said composite fibre layer down: the P84 fiber accounts for 20%, and glass fibre accounts for 80%.
Preferably, said base cloth layer adopts the PTFE base cloth.
The beneficial effect of the utility model is: make it also have stronger resistance dirt and catch the dirt ability, have stronger characteristics such as obvolvent entanglement power because the P84 fiber has very high temperature tolerance (260 ℃), foliated fiber cross section; Therefore; In fiberglass needled mat, introduce the P84 fiber, process P84 fiber and glass fibre combined filtration felt, can improve filter efficiency greatly; Strengthen the adhesion between carpet veneer and the base cloth; Even filtration velocity increases, also difficult the peeling off from base cloth of carpet veneer comes off, and prolonged service life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model;
Among the figure: 1, go up composite fibre layer, 2, base cloth layer, 3, composite fibre layer down.
The specific embodiment
As shown in Figure 1; A kind of P84 fiber and glass fibre combined filtration felt; At the upper and lower surface of base cloth layer 2, adopt the needing machine symmetry to paste the last composite fibre layer of processing by the thick by a certain percentage smart shredding mixing combing of P84 fiber and glass fibre 1 and following composite fibre layer 3.The proportioning of P84 fiber and glass fibre is in the last composite fibre layer 1: the P84 fiber accounts for 40%, and glass fibre accounts for 60%; The proportioning of P84 fiber and glass fibre is in the following composite fibre layer 3: the P84 fiber accounts for 20%, and glass fibre accounts for 80%; Base cloth layer 2 adopts the PTFE base cloth.
Its technological process of production comprises: thick shredding (mixing hair) → smart shredding → feeding → combing → one-tenth net → base cloth → pre-needling → main acupuncture → felt body → dipping typing → calendering → finished product → bag packing.
Through practice, technical indicator of the utility model and glass fibre needled filtering felt deck watch are following:
Claims (2)
1. polyimides and glass fibre combined filtration felt; It is characterized in that: the upper and lower surface in base cloth layer (2), adopt the needing machine symmetry to paste last composite fibre layer (1) and the following composite fibre layer of being processed by the thick by a certain percentage smart shredding mixing combing of polyimide fiber and glass fibre (3).
2. polyimides according to claim 1 and glass fibre combined filtration felt is characterized in that: said base cloth layer (2) adopts the PTFE base cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205191492U CN202527008U (en) | 2011-12-14 | 2011-12-14 | Polyimide and glass fiber composite filter felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205191492U CN202527008U (en) | 2011-12-14 | 2011-12-14 | Polyimide and glass fiber composite filter felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202527008U true CN202527008U (en) | 2012-11-14 |
Family
ID=47128216
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205191492U Expired - Lifetime CN202527008U (en) | 2011-12-14 | 2011-12-14 | Polyimide and glass fiber composite filter felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202527008U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529449A (en) * | 2018-11-26 | 2019-03-29 | 辽宁凯富环保科技集团有限公司 | A kind of production technology of ultra-fine fibre glass and the compound woven fabric of polyimide fiber |
-
2011
- 2011-12-14 CN CN2011205191492U patent/CN202527008U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109529449A (en) * | 2018-11-26 | 2019-03-29 | 辽宁凯富环保科技集团有限公司 | A kind of production technology of ultra-fine fibre glass and the compound woven fabric of polyimide fiber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121114 |