CN202823002U - High-temperature-resistant composite fiber coating needled filtering felt - Google Patents
High-temperature-resistant composite fiber coating needled filtering felt Download PDFInfo
- Publication number
- CN202823002U CN202823002U CN 201220435339 CN201220435339U CN202823002U CN 202823002 U CN202823002 U CN 202823002U CN 201220435339 CN201220435339 CN 201220435339 CN 201220435339 U CN201220435339 U CN 201220435339U CN 202823002 U CN202823002 U CN 202823002U
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- Prior art keywords
- high temperature
- resistant composite
- filtering felt
- temperature resistant
- needled filtering
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Abstract
The utility model discloses a high-temperature-resistant composite fiber coating needled filtering felt which comprises basic cloth, wherein the upper surface and the lower surface of the basic cloth are respectively connected with a fiber layer in an adhesive mode, and the fiber layer on the windward side is provided with a polytetrafluoroethylene (PTFE) breathable membrane through plating treatment. The filtering felt has the advantages of being good in air permeability, easy to deash, corrosion-resistant, dew-resistant, high in abrasion-resistance and easy to peel, prolonging service life of filtering materials, reducing replacement frequency, and therefore lowering production cost of enterprises.
Description
[technical field]
The utility model relates to filter felt, especially a kind of high temperature resistant composite fibre plated film needled filtering felt.
[background technology]
Nomex is a kind of purification filtering material, fibrous raw material is processed into the product of felt or nonwoven and so on by acupuncture, the Nomex kind is more, comprise fiberglass needled mat, stainless steel acupuncture felt etc., under general working condition, common needled filtering felt can satisfy the operating temperature below 150 ° substantially, but to processing the occasion that air quantity is large, flue-gas temperature is higher, such as kiln hood, the dedusting of kiln tail of rotary cement kiln; The improvement of the high temperature flue gases such as the blast furnace gas evolution of iron-smelter, then to the again higher requirement of the performance of filtering material, existing general acupuncture filter felt can't satisfy the requirement of these occasions.
[summary of the invention]
The purpose of this utility model is effectively to overcome the deficiency of above-mentioned technology, provides a kind of resistance to elevated temperatures good, erosion-resisting high temperature resistant composite fibre plated film needled filtering felt.
The technical solution of the utility model is achieved in that a kind of high temperature resistant composite fibre plated film needled filtering felt, it comprises base cloth, upper surface and the lower surface bonds of described base cloth have fibrage, form one deck PTFE breathable films by coating film treatment on the fibrage of described windward side.
Preferably, described base cloth is the woven fabric that alkali-free glass fibre is made.
Preferably described fibrage is that several high temperature resistant short fibers mix the mixed fiber layer that forms.
The beneficial effects of the utility model are: the utility model adopts alkali-free glass fibre as base cloth, take full advantage of that glass fibre is high temperature resistant, corrosion-resistant, intensity is high and under the condition of high temperature shrinkage factor be zero performance so that filter bag can not shrink under the working condition of high temperature; Simultaneously, its surface forms one deck breathable films by coating film treatment, forms between the effect of surface filtration and in-depth filtration so that filter, reached breathe freely, easy-to-clean ash; Corrosion-resistant, Anti-dew; High abrasion, the effect of easily peeling off; In addition, also increase the service life of filtrate, saved replacement frequency, thereby reduced the production cost of enterprise.
[description of drawings]
Fig. 1 is structural representation of the present utility model
Among the figure: base cloth 1; Fibrage 2(3); PTFE breathable films 4.
[specific embodiment]
The utility model will be further described below in conjunction with drawings and Examples.
With reference to shown in Figure 1, the high temperature resistant composite fibre plated film needled filtering felt that the utility model discloses, it comprises base cloth 1, the upper surface of described base cloth 1 and lower surface bonds have fibrage 2,3.
In the present embodiment, the woven fabric that described base cloth 1 is made for alkali-free glass fibre, take full advantage of that glass fibre is high temperature resistant, corrosion-resistant, intensity is high and under the condition of high temperature shrinkage factor be zero performance so that filter bag can not shrink under the working condition of high temperature; Described fibrage 2,3 is that several high temperature resistant short fibers mix the mixed fiber layer that forms, and gives full play to the characteristic of various short fibers and accomplishes to have complementary advantages.
In addition, form one deck PTFE breathable films by coating film treatment on the fibrage 2 of windward side, soon filtrate integral body is soaked in and contains in the certain density PTFE emulsion, allow and be full of the PTFE emulsion in the space of filtrate, pass through hyperthermia drying, emulsion is solidificated in the filtrate, passes through again the extruding of HTHP, make the surface of filtrate form a kind of PTFE breathable films 4 of similar coating effect.Thus so that filter to form between the effect of surface filtration and in-depth filtration, reached breathe freely, easy-to-clean ash; Corrosion-resistant, Anti-dew; High abrasion, the effect of easily peeling off; In addition, also increase the service life of filtrate, saved replacement frequency, thereby reduced the production cost of enterprise.
Described above only is preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, various distortion and modification can appear, and the retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the utility model is protected.
Claims (3)
1. high temperature resistant composite fibre plated film needled filtering felt, it is characterized in that: it comprises base cloth, upper surface and the lower surface bonds of described base cloth have fibrage, form one deck PTFE breathable films by coating film treatment on the fibrage of described windward side.
2. high temperature resistant composite fibre plated film needled filtering felt according to claim 1, it is characterized in that: described base cloth is the woven fabric that alkali-free glass fibre is made.
3. high temperature resistant composite fibre plated film needled filtering felt according to claim 1 is characterized in that: described fibrage is that several high temperature resistant short fibers mix the mixed fiber layer that forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435339 CN202823002U (en) | 2012-08-29 | 2012-08-29 | High-temperature-resistant composite fiber coating needled filtering felt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435339 CN202823002U (en) | 2012-08-29 | 2012-08-29 | High-temperature-resistant composite fiber coating needled filtering felt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202823002U true CN202823002U (en) | 2013-03-27 |
Family
ID=47934804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220435339 Expired - Fee Related CN202823002U (en) | 2012-08-29 | 2012-08-29 | High-temperature-resistant composite fiber coating needled filtering felt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202823002U (en) |
-
2012
- 2012-08-29 CN CN 201220435339 patent/CN202823002U/en not_active Expired - Fee Related
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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: 20130327 Termination date: 20160829 |