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
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[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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