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Filtering material possessing desulphurization efficacy and preparation method thereof

A filter material and efficiency technology, which is applied in the field of environmental protection, dust removal and flue gas purification, to achieve the effects of a wide range of applicable working conditions, reduced operation and maintenance costs, and improved catalytic decomposition efficiency

Active Publication Date: 2015-11-04
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 desulfurization effect and its preparation method

Method used

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  • Filtering material possessing desulphurization efficacy and preparation method thereof
  • Filtering material possessing desulphurization efficacy and preparation method thereof
  • Filtering material possessing desulphurization efficacy and preparation method thereof

Examples

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preparation example Construction

[0030] A preparation method of a filter material with desulfurization effect, comprising the following steps: (1) after mixing active metal catalyst powder and PTFE resin powder, respectively making PTFE fiber containing catalyst and PTFE microporous film containing catalyst; (2 ) The PTFE fiber containing the catalyst and the high-strength PTFE fiber are made into a warp beam in a 1-10:1-10 alternate arrangement, and the PTFE base cloth layer is made into a PTFE base cloth layer by weaving; (3) the base material and the catalyst-containing Put the PTFE staple fiber into the needle punching machine together with the PTFE base cloth layer after mixing, and form a catalytic PTFE fiber strength layer on both sides of the PTFE base cloth layer to make a PTFE composite needle felt; (4) mix the active metal catalyst emulsion with PTFE emulsion is mixed to make a catalyst mixed treatment solution, and the PTFE composite needle felt is impregnated as a whole, and then sintered at 280-3...

Embodiment 1

[0033] The active catalyst V 2 o 5 / TiO 2 The micropowder and PTFE resin are uniformly mixed together at a 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 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 sulfur dioxide and other harmful substances 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, using a 1:1 alternate arrangement to make warp beams, and weaving them into PTFE base fabrics by weaving to obtain PTFE base fabric layers 4;...

Embodiment 2

[0043] The active catalyst V 2 o 5 -WO 3 / TiO 2 The micropowder and PTFE resin are uniformly mixed together at a ratio of 8:92 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 sulfur dioxide and other harmful substances 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, using a 1:1 alternate arrangement to make warp beams, and weaving them into PTFE base fabrics by weaving to obtain PTFE base fabric lay...

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Abstract

The invention provides a preparation method of a filtering material possessing desulphurization efficacy, which comprises the following steps: 1)active metal catalyst powder and PTFE resin powder are mixed and respectively prepared to catalyst-containing PTFE fiber and catalyst-containing PTFE micropore film; 2) catalyst-containing PTFE fiber and high-strength PTFE fiber employs an alternative arrangement mode with 1-10: 1-10 to prepare warp beam, a PTFE base cloth layer is prepared by employing a machine knitting mode; 3)the base material and catalyst-containing PTFE fiber are mixed, and then placed in a needle loom with the PTFE base cloth layer to prepare PTFE composite needled felt; 4)an active metal catalyst emulsion and a PTFE emulsion are mixed to prepare a catalyst mixing treatment fluid, the PTFE composite needled felt is performed with integral dipping treatment and sintered at temperature of 280-350 DEG C; and 5)the sintered PTFE composite needled felt and the catalyst-containing PTFE micropore film are simultaneously introduced into a heat film covering machine, and the surface is performed with hot pressing and laminating. According to the invention, filtration accuracy as well as desulphurization efficiency can be greatly increased.

Description

technical field [0001] The invention relates to the field of environmental protection dust removal and flue gas purification, in particular to a filter material with desulfurization effect 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, sulfur dioxide is 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. Sulfur dioxide is the most important gaseous pollutant that affects air quality, and it is an important indicator to measure whether the atmosphere is polluted. [0003]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B01J23/22B01J23/30B01D53/86B01D53/50B01D46/10B32B27/06B32B27/12B32B33/00B32B9/04B32B37/00B32B37/06
Inventor 李刚
Owner 辽宁新洪源环保材料有限公司
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