Filter material for ultrafine dust filtering and preparation method thereof

A technology for dust filtration and filter material, applied in the field of industrial filter material and its preparation, can solve the problems of unsatisfactory application effect and cost performance of bag filter, large resistance of film-coated filter material, uneven air permeability, etc. Warp and weft strength and elongation at break index, low filtration resistance, and the effect of improving air permeability

Active Publication Date: 2014-04-16
ZHEJIANG YUBANG FILTER MATERIAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the filter material of the bag filter is mostly made of 1.5-2.2 denier fiber to make the filter bag. Although it can filter the dust above 10 μm, it can only filter the dust below 5 μm. to fulfill
Due to the large resistance and uneven air permeability of the film-coated filter material, it is easy to cause defects such as film removal and short service life, so the application effect and cost performance in the bag filter are not very ideal.

Method used

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  • Filter material for ultrafine dust filtering and preparation method thereof

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Embodiment Construction

[0020] Such as figure 1 The shown filter material for filtering ultrafine dust consists of three layers, including an upper layer of ultrafine denier fiber (0.05-0.08 denier), a middle layer of woven mesh cloth and a lower layer of coarse denier fiber (2.65 denier). denier), the content of the superfine denier fiber layer, the woven mesh layer and the coarse denier fiber layer is (parts by weight): 185~220:80~110:185~220. The content of superfine denier fiber, woven mesh cloth and coarse denier fiber is preferably (parts by weight): 200:100:200. The warp strength of the woven mesh is ≥1600N (50mm×200mm), the weft strength is ≥1500N (50mm×200mm), and the mass per unit area of ​​the woven mesh is 80~110g / m 2 .

[0021] The above-mentioned filter material preparation method for superfine dust filtration comprises the steps:

[0022] ① The unopened fine denier fibers are opened, homogenized, mixed, and combed into the upper fine denier fiber web layer;

[0023] ②The coarse den...

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Abstract

The invention relates to a filter material for the below 2mum ultrafine dust filtering and a preparation method thereof. Present filter materials have the defects of nonuniform permeability, easy stripping, short service life and the like, so the effect of the present filter materials applied to a bag filter and the cost performance are not ideal. The filter material for the ultrafine dust filtering provided in the invention is characterized in that: the filter material comprises the following three layers: an ultrafine denier fibrous layer (0.05-0.08 deniers) at the upper layer, a woven mesh layer at the middle layer, and a coarse denier fibrous layer (2.6-5 deniers) at the lower layer, wherein the weight part ratio of the ultrafine denier fibrous layer: the woven mesh layer: the coarse denier fibrous layer is 185-220:80-110:185-220. The preparation method allows the filtration accuracy of the filter material to be improved and the whole air permeability of the filter material to be improved.

Description

technical field [0001] The invention relates to an industrial filter material and a preparation method thereof, in particular to a filter material which can be used for filtering ultrafine dust below 2 μm and a preparation method thereof. Background technique [0002] With the rapid development of China's economy, people's awareness of environmental protection is increasing day by day, and they are paying more and more attention to their health. The bag filter is widely used in industrial production, and usually the treatment of flue gas and dust must use a high-efficiency bag filter. At present, the filter material of the bag filter is mostly made of 1.5 to 2.2 denier fiber to make a filter bag. Although it can filter the dust above 10 μm, it can only filter the dust below 5 μm. to realise. Because the film-coated filter material has defects such as large resistance, uneven air permeability, easy to cause film removal, and short service life, the application effect and co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/16B32B5/26
Inventor 孙志钜张金华李熙
Owner ZHEJIANG YUBANG FILTER MATERIAL TECH CO LTD
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