Filter material and use

A filter material and filter surface technology, which is applied in the direction of filtration separation, dispersed particle filtration, and dispersed particle separation, etc., can solve the problems of reduced cleaning interval of filter felt, easy breakage, high pressure loss of filter felt, and increase the pressure loss Small size, excellent dust collection efficiency, and good thermal dimensional stability
CN101406780AInactive Publication Date: 2009-04-15TORAY IND INC
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
TORAY IND INC
Publication Date
2009-04-15
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a filter material and application thereof. The filter material has a three-layer structure, namely, a filter surface layer, an unfilterable surface layer and a middle fabric reinforced layer, wherein the filter surface layer is a fiber net formed by mixing 10 to 90 weight percent of heat resistant fiber of which the average diameter is below 10 mu m, and 10 to 90 weight percent of the heat resistant fiber of which is the average diameter between 10 and 20 mu m; the unfilterable surface layer is the fiber net formed by the heat resistant fiber of which the average diameter is between 10 and 20 mu m; and the middle layer is a fabric reinforced layer. The filter material has the advantages of high dust collecting efficiency, small raise of pressure loss after the dust on the surface of the filter material is removed, and prolonged service life of the filter material because damage of the filter material caused by blowing times of compressed air is reduced due to long dust cleaning period. The filter material can be used for preparing filter bags and the like.
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Description

Technical field:

[0001] The invention relates to a filter material and its application. Background technique:

[0002] With the continuous development of our country's society and economy and the continuous improvement of people's living standards, people's requirements for the quality of the atmospheric environment will become higher and higher. In order to control the emission of air pollutants from coal-fired power plants, protect the living and ecological environment, and implement sustainable development In 2004, my country began to implement the newly revised national pollutant emission standards, which stipulated the emission limits of air pollutants for thermal power plants in three periods, and proposed that thermal power plants should implement sulfur dioxide and soot emissions by 2005 and 2010. Emission limits, in which the lower limits of smoke and dust emission standards are close to or meet the standards of developed countries. Moreover, this year (2007) the Bag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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