CN201899933U

CN201899933U - Glass fiber filter cloth and polyimide surface layer combined spun-laced filter felt

Info

Publication number: CN201899933U
Application number: CN2010206595272U
Authority: CN
Inventors: 刘书平
Original assignee: SHANGHAI BG INDUSTRIAL FABRIC Co Ltd
Current assignee: SHANGHAI BG INDUSTRIAL FABRIC Co Ltd
Priority date: 2010-12-15
Filing date: 2010-12-15
Publication date: 2011-07-20
Anticipated expiration: 2020-12-15

Abstract

The utility model discloses a glass fiber filter cloth and polyimide surface layer combined spun -laced filter felt. The spun-laced filter felt is formed by jetting and sticking a polyimide fiber layer on a windward surface of the glass fiber filter felt by using high pressure water flow. The spun-laced filter felt has the advantages that the phenomena that high temperature particulate matters burn filter material is reduced by about 20 percent, the strength is high, the radial strength is larger than or equal to 2000N/5*20 cm, the latitudinal strength is larger than or equal to 2000N/5*20 cm, the air permeability is 3 to 5m3/m2 min, the long-term use temperature is 130 to 240 DEG C, the transient use temperature can reach 240 DEG C, the chemical corrosion resistant performance is good, the size stability is good, the tensile strength is high, the wear resistance and the folding resistance are improved, and the service life is long.

Description

Glass filter cloth and the composite spunlaced filter felt of polyimides surface layer

Technical field

The utility model relates to a kind of filtering material that is used for flue gas and treating flour dust, particularly a kind of glass filter cloth and the composite spunlaced filter felt of polyimides surface layer.

Background technology

At present, by steel mill, power plant, cement plant, carbon black chemical plant, institute of coal-burning boiler factory discharged flue gas, dust temperature height, complex chemical composition such as soda acid, and there are its pluses and minuses separately in traditional single filter material, be difficult to satisfy the needs of various operating modes, glass filter cloth P84 surface layer water thorn felt has overcome the deficiency of traditional filtrate, and he is the compound filtrate of multiple fiber, kinds of processes, this just improves its range of application and service condition greatly, is suitable for the needs of various operating modes.

The utility model content

Technical problem to be solved in the utility model is that a kind of temperature tolerance height will be provided, and corrosion resistance is strong, and dimensional stability is good, glass filter cloth that ultimate strength is high and the composite spunlaced filter felt of polyimides surface layer.

In order to solve above technical problem, the utility model provides a kind of glass filter cloth and the composite spunlaced filter felt of polyimides surface layer, is in the windward side of glass filter cloth, injects with High-Pressure Water and pastes the polyimide fiber layer.

Described glass filter cloth is the fabric that a kind of varicosity alkali-free glass fiber yarn adopts the plain weave weave to make.

Superior effect of the present utility model is: the high-temperature particle thing reduces about 20% to the calcination phenomenon of filtrate; The intensity height, brute force 〉=2000N/5 * 20 ㎝ radially, broadwise brute force 〉=2000N/5 * 20 ㎝; Air permeability 3～5m ³/ m ²Min; Long-term serviceability temperature is 130～204 ⁰C, moment serviceability temperature can reach 240 ⁰C; The resist chemical performance is good; Dimensionally stable is good, and tension is powerful high; Wearability, folding resistance improve long service life.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

The number in the figure explanation

1-glass filter cloth; 2-polyimide fiber layer.

The specific embodiment

See also shown in the accompanying drawing, the utility model will be further described.

As described in Figure 1, the utility model provides a kind of glass filter cloth and the composite spunlaced filter felt of polyimides surface layer, is in the windward side of glass filter cloth 1, injects with High-Pressure Water and pastes polyimide fiber layer 2.

Described glass filter cloth 1 is the fabric that a kind of varicosity alkali-free glass fiber yarn adopts the plain weave weave to make.

Manufacture craft process of the present utility model is: polyimide fiber P84 is carded to fibre web through carding machine, become the P84 fleece through lapping, pre-needling again, the glass yarn through warping, gait, go up axle, go up machine, produce the glass filter cloth, the glass filter cloth passes through the PTFE impregnation process again, with treated glass filter cloth and the positive and negative impact of P84 fleece process high-pressure water jet, they are adhered to each other at last, and the finished product through just making behind the drying machine drying.

The utility model drops into actual operating mode and uses, and through implementing proof, continuous operation temperature of the present utility model is 130 ⁰C～204 ⁰C, moment serviceability temperature be 240 ⁰C, brute force 〉=2000N/5 * 20 ㎝ radially, broadwise brute force 〉=2000N/5 * 20 ㎝, radial fragmentation percentage elongation≤10%, broadwise elongation at break≤10%, air permeability 3～5m ³/ m ²Min has improved 10% service life.

Claims

1. glass filter cloth and the composite spunlaced filter felt of polyimides surface layer is characterized in that: be in the windward side of glass filter cloth, inject with High-Pressure Water and paste the polyimide fiber layer.