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A kind of filter material with denitration and dioxin efficacy and preparation method thereof

A filter material and efficiency technology, applied in the field of filter material with denitrification and dioxin effects and its preparation, to achieve the effects of increasing contact area, improving catalytic decomposition efficiency, reducing energy consumption and operation and maintenance costs

Active Publication Date: 2017-02-01
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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  • A kind of filter material with denitration and dioxin efficacy and preparation method thereof
  • A kind of filter material with denitration and dioxin efficacy and preparation method thereof
  • A kind of filter material with denitration and dioxin efficacy 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 fiber containing the catalyst and the high-strength PTFE fiber are alternately arranged in a manner of 1-10:1-10 to make a warp yarn, and the PTFE base cloth layer is made into a PTFE base cloth layer by weaving; (3) the PTFE base cloth The surface of the cloth layer is needle-punched or hydroentangled with catalyst-containing PTFE short fibers and substrates to make a PTFE felt layer; (4) The active metal catalyst emulsion is mixed with the PTFE emulsion to make a catalyst mixed treatment liquid, which is used for PTFE felt The 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 a...

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]The first is the warping process of PTFE fibers containing catalysts and high-strength PTFE fibers before weaving. The warp yarns are alternately arranged at a mass ratio of 2:1, and the PTFE base fabric layer is made by weaving by ...

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 yarns are alternately arranged at a mass ratio of 2:2, and the PTFE base fabric layer is made by weaving by weaving....

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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 Patents(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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