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High dust holding filter material for filter bag

A filter material and filter bag technology, applied in the fields of filtration and separation, dispersed particle filtration, layered products, etc., can solve the problems of limited dust holding layer and difficult to increase dust holding capacity, and achieve easy unwinding and traction, good machinery The effect of high performance and porosity

Active Publication Date: 2014-03-19
桐乡市朗裕净化科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the dust-holding layer is limited by materials and manufacturing techniques, and it is difficult to increase the dust-holding capacity

Method used

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  • High dust holding filter material for filter bag

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Embodiment

[0010] Example: see figure 1 , the present invention has a three-layer laminated structure in which the upper protective layer 1 and the lower protective layer 3 sandwich the middle dust-holding layer 2, and the three layers are combined into one by acupuncture or ultrasonic welding technology, and the total grammage of the high-dust-holding filter material is 50- 200g / m 2 , where the upper and lower protective layers adopt a grammage of 10-30g / m 2 Made of polypropylene spunbonded non-woven fabric, the purpose is to give the high dust holding filter material a certain strength, and at the same time clamp the dust holding layer to fix the fibers and prevent the fibers from falling off; the dust holding layer is the key layer of the high dust holding filter material. The weight is 30-140g / m 2 , using polypropylene staple fiber raw materials, using mechanical carding and mechanical web forming technology to make a three-dimensional structure with high fluffy and high porosity, ...

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Abstract

The invention discloses a high dust holding filter material for a filter bag. The high dust holding filter material is in a three-layer overlap structure formed by clamping a middle dust holding layer clamped by an upper protective layer and a lower protective layer, wherein the three layers are compounded into a whole by adopting a punching or ultrasonic welding process; the total gram weight of the high dust holding filter material is 50-200g / m<2>; the upper protective layer and the lower protective layer are made of polypropylene spunbond nonwoven fabrics with the gram weight of 10-30g / m<2>. The invention aims to give a certain strength to the high dust holding filter material, the dust holding layer is clamped, and the effects of fixing fibers and preventing the fibers from dropping are achieved. Moreover, the dust holding layer is a key layer of the high dust holding filter material, has the gram weight of 30-140 g / m<2> and is made of a polypropylene short fiber raw material, and a high-bulk high-porosity three-dimensional stereoscopic structure is manufactured by utilizing the mechanical carding and mechanical wet forming technology. The high dust holding filter material has the characteristics of high dust holding capacity, high processing performance and the like.

Description

technical field [0001] The invention belongs to the technical field of air filter materials, and in particular relates to a high dust-holding filter material used for filter bags. Background technique [0002] The filter material generally used for filter bags is composed of a dust holding layer, a filter layer and a support layer, wherein the dust holding layer plays the role of collecting dust, the filter layer plays the role of filtering dust, and the support layer is used to support the dust holding layer and the filter layer. At the same time, ensure that the filter bag has sufficient strength when in use. The dust holding layer is the most critical layer in the filter bag, which plays a decisive role in the life of the filter bag. The higher the dust holding capacity, the stronger its ability to hold fine dust, and the greater the ability to slow down the resistance of the filter layer. Strong, the life of the filter bag will be longer, otherwise the life of the filte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/16B01D46/02B32B27/02B32B27/12B32B27/32
Inventor 陈胜发
Owner 桐乡市朗裕净化科技股份有限公司
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