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Filter material with denitration and dioxin-removal effects and preparation method thereof

A filter material and efficacy technology, applied in the field of filter materials with denitration and dioxin effects and their preparation, to achieve the effects of wide range of applicable working conditions, improved catalytic decomposition efficiency, reduced energy consumption and operation and maintenance costs

Active Publication Date: 2015-10-28
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

[0006] The purpose of the present invention is to solve some problems existing in the existing desulfurization filter material technology, to provide a filter material with denitrification and dioxin effects and its preparation method

Method used

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  • Filter material with denitration and dioxin-removal effects and preparation method thereof
  • Filter material with denitration and dioxin-removal effects and preparation method thereof
  • Filter material with denitration and dioxin-removal effects and preparation method thereof

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preparation example Construction

[0030] A preparation method of a filter material with denitrification and dioxin effects, comprising the following steps: (1) after mixing active metal catalyst powder and PTFE resin powder, respectively making PTFE fibers containing catalyst and PTFE micropores containing catalyst film; (2) the PTFE fibers containing the catalyst and the high-strength PTFE fibers are alternately arranged in 1-10:1-10 to make a warp beam, and the PTFE base cloth layer is made by weaving in a weaving manner; (3) in PTFE The surface of the base cloth layer is composited with needle-punched or hydroentangled PTFE short fibers containing a catalyst and a base material to make a PTFE felt layer; (4) mixing the active metal catalyst emulsion with the PTFE emulsion to make a catalyst mixed treatment liquid, which is used for the PTFE felt The material layer is impregnated as a whole, and then sintered at 300-350°C; (5) The sintered PTFE felt layer and the PTFE microporous film containing the catalyst ...

Embodiment 1

[0033] The active catalyst WO 3 、MoO 3 / TiO 2 The micropowder and PTFE resin are uniformly mixed together at a mass ratio of 3:97 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:

[0034]One is the warping process of PTFE fibers containing catalysts and high-strength PTFE fibers before weaving. The warp beam is made by alternately arranging the mass ratio of 2:1, and the PTFE base cloth layer is made by weaving. 4;...

Embodiment 2

[0043] The active catalyst V 2 o 5 / TiO 2 The micropowder and PTFE resin are uniformly mixed together at a mass ratio of 10:90 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:

[0044] One is the warping process of PTFE fibers containing catalysts and high-strength PTFE fibers before weaving. The warp beams are made by alternately arranging the mass ratio of 2:2, and the PTFE base cloth layer is made by weaving. 4;...

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Abstract

The invention provides a preparation method of a filter material with denitration and dioxin-removal effects. The preparation method comprises the following steps: (1) after an active metal catalyst powder and PTFE resin powder are mixed, catalyst-containing PTFE fiber and a catalyst-containing PTFE micro-porous membrane are respectively prepared; (2) the catalyst-containing PTFE fiber and high-strength PTFE fiber are made into warp beams by a 1-10:1-10 alternate arrangement mode, and a PTFE base cloth layer is prepared by a weaving mode; (3) the catalyst-containing PTFE short fiber and a base material undergo composite acupuncture or spunlace on the surface of the PTFE base cloth layer so as to prepare a PTFE felt layer; (4) an active metal catalyst emulsion and a PTFE emulsion are mixed to prepare a catalyst mixed treating fluid, and the PTFE felt layer undergoes mass-impregnation treatment and then is sintered at 300-350 DEG C; and (5) the sintered PTFE felt layer and the catalyst-containing PTFE micro-porous membrane are simultaneously introduced into a hot laminator to undergo surface hot-press lamination processing. According to the invention, filtration accuracy and denitration and dioxin-removal efficiency can be enhanced remarkably.

Description

technical field [0001] The invention relates to the field of environmental protection dust removal flue gas purification, in particular to a 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 important indicators to measure whether the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01J23/22B01J23/30B01D53/86B01D53/56B01D53/70B01D53/72B01D46/10B32B27/06B32B27/12B32B33/00B32B9/04B32B37/00B32B37/06
Inventor 李刚
Owner 辽宁新洪源环保材料有限公司
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