A kind of ultra-fine glass fiber woven composite functional filter material for denitrification and dioxin and preparation method thereof

A compound function, glass fiber machine technology, applied in the direction of chemical instruments and methods, separation methods, organic compounds/hydrides/coordination complex catalysts, etc., can solve problems such as escape, achieve excellent temperature resistance, and increase contact area , energy consumption and operation and maintenance costs reduction effect

Active Publication Date: 2018-02-02
辽宁新洪源环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although various flue gas denitrification and dioxin removal processes have been researched and developed at home and abroad, each has its own characteristics and achieved certain results, but there is a problem of removal efficiency of harmful substances in common. Harmful substances such as nitrogen oxides and dioxins have a certain escape phenomenon

Method used

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  • A kind of ultra-fine glass fiber woven composite functional filter material for denitrification and dioxin and preparation method thereof
  • A kind of ultra-fine glass fiber woven composite functional filter material for denitrification and dioxin and preparation method thereof
  • A kind of ultra-fine glass fiber woven composite functional filter material for denitrification and dioxin and preparation method thereof

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preparation example Construction

[0029] A preparation method of ultra-fine glass fiber woven composite functional filter material for denitrification and dioxin, comprising the following steps: (1) after mixing active metal catalyst powder and PTFE resin, respectively making PTFE fibers containing catalyst and PTFE microporous film containing catalyst; (2) blending PTFE fiber containing catalyst with ultra-fine glass fiber to make composite yarn, and weaving into ultra-fine glass fiber and catalytic PTFE fiber blended woven fabric by weaving layer; (3) mixing the active metal catalyst emulsion with the PTFE emulsion to make a catalyst mixed treatment solution, and performing an overall impregnation treatment on the ultrafine glass fiber and catalytic PTFE fiber blended woven fabric layer, and then sintering at 300-350 ° C; ( 4) The sintered superfine glass fiber and catalytic PTFE fiber blended woven fabric layer and the PTFE microporous film containing the catalyst are simultaneously introduced into a thermal...

Embodiment 1

[0032] The active catalyst V 2 o 5 、MoO 3 / TiO 2 The micropowder and PTFE resin are uniformly mixed together at a mass ratio of 5:95 to make PTFE fibers containing catalysts and PTFE microporous films containing catalysts respectively; among them, the type and quality of additives can be selected arbitrarily according to needs. The PTFE fiber containing the catalyst is mainly used to make woven filter cloth, and the PTFE microporous film containing the catalyst is finally coated on the surface of the filter material. By implanting an active catalyst in the filter material, it can achieve the effect of removing harmful substances such as nitrogen oxides and dioxins in the flue gas while filtering the flue dust. Specific steps are as follows:

[0033]One is to blend PTFE fibers containing catalysts with ultra-fine glass fibers at a mass ratio of 1:1 to make composite yarns, and weave composite filter cloth by weaving. The filter cloth is ultra-fine glass fibers and catalytic...

Embodiment 2

[0041] The active catalyst V 2 o 5 、WO 3 、TiO 2 The micropowder and PTFE resin are uniformly mixed together at a mass ratio of 6:94 to make PTFE fibers containing catalysts and PTFE microporous films containing catalysts respectively; among them, the type and quality of additives can be arbitrarily selected according to needs. The PTFE fiber containing the catalyst is mainly used to make woven filter cloth, and the PTFE microporous film containing the catalyst is finally coated on the surface of the filter material. By implanting an active catalyst in the filter material, it can achieve the effect of removing harmful substances such as nitrogen oxides and dioxins in the flue gas while filtering the flue dust. Specific steps are as follows:

[0042] One is to blend PTFE fibers containing catalysts with ultrafine glass fibers at a mass ratio of 2:2 to make composite yarns, and weave composite filter cloth by weaving. The filter cloth is ultrafine glass fibers and catalytic P...

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Abstract

The invention provides a method for preparing an ultrafine glass fiber woven composite functional filter material for denitrification and dioxin, which comprises the following steps: (1) after mixing active metal catalyst powder and PTFE resin, respectively making catalyst-containing PTFE fibers and PTFE microporous films containing catalysts; (2) blending PTFE fibers containing catalysts with ultrafine glass fibers to make composite yarns, and weaving them into ultrafine glass fibers and catalytic PTFE fiber blending machines Weaving layer; (3) Mix the active metal catalyst emulsion and PTFE emulsion to make a mixed catalyst treatment solution, and then sinter at 300-350°C after overall impregnation of the ultrafine glass fiber and catalytic PTFE fiber blended woven fabric layer; (4) The sintered superfine glass fiber and catalytic PTFE fiber blended woven fabric layer and the PTFE microporous film containing the catalyst are simultaneously introduced into a thermal laminating machine for surface thermal pressing lamination. The invention can remarkably improve the filtration precision and the efficiency of denitrification and dioxin removal.

Description

technical field [0001] The invention relates to the field of environmental protection dust removal and flue gas purification, in particular to an ultrafine glass fiber woven composite filter material with denitrification and dioxin effects and a preparation method thereof. Background technique [0002] At present, with the rapid development of the economy, the emission of industrial waste gas has increased dramatically. The pollution of my country's atmospheric environment is becoming more and more serious, and it is gradually changing from soot pollution to mixed pollution. The total emissions of smoke, SOx, NOx, and Hg rank first in the world. Among them, nitrogen oxides and dioxins are one of the main pollutants in the atmosphere. The emission exceeds the self-purification capacity of the environment, causing great harm and the environmental situation is very severe. Nitrogen oxides and dioxins are the most important gaseous pollutants that affect air quality, and are im...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01J31/38B32B17/02B32B33/00
Inventor 宋朋泽鞠东升
Owner 辽宁新洪源环保材料有限公司
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