Low-impedance high-efficiency air filtering material and preparation method thereof

An air filter material and high-efficiency technology, applied in the direction of filtration separation, membrane filter, separation method, etc., can solve the problems of high resistance and high energy consumption of air filter materials, so as to ensure filtration efficiency, reduce energy consumption, and enhance bonding force Effect

Active Publication Date: 2017-06-27
JIANGSU FILTERTEX FILTER MATERIAL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the dense air filter material can improve the filtration efficiency, the resistance of the air filter material is very high when it works, resulting in high energy consumption

Method used

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  • Low-impedance high-efficiency air filtering material and preparation method thereof

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preparation example Construction

[0024] The preparation method of the air filter material of above-mentioned embodiment, comprises:

[0025] Step 10) Feed two kinds of fibers with different melting points into the cotton box, mix them evenly, and comb them into a web through a carding machine;

[0026] Wherein, in step 10), the two fibers with different melting points refer to PET short fibers and PP short fibers. Preferably, the thickness of the PET short fiber is 1.5D, the thickness of the PP short fiber is 1.35D, and the PET short fiber and the 1.35D PP short fiber are mixed according to a mass ratio of 1:1.

[0027] Step 20) Arrange the needle-punched nonwoven into the oven, use hot air to penetrate the needle-punched nonwoven, and make the needle-punched nonwoven in a semi-molten state; then transfer the needle-punched nonwoven to the Cold rollers are used for rapid cold shock setting to form a non-woven needle-punched filter felt as the base layer.

[0028] Wherein, in step 20), preferably, the needle...

example 1

[0046] A method for preparing a low-impedance high-efficiency air filter material, comprising:

[0047] Step 10) Feed two kinds of fibers with different melting points into the cotton box, mix them evenly, and comb them into a web through a carding machine; D PET staple fibers and PP staple fibers with a thickness of 1.35D, and PET staple fibers and 1.35D PP staple fibers are mixed according to the mass ratio of 1:1.

[0048] Step 20) Put the needle-punched nonwoven fabric into the oven at a speed of 3 meters per minute, use hot air to penetrate the needle-punched nonwoven fabric, and make the needle-punched nonwoven fabric in a semi-molten state; then under the action of the conveying curtain The needle-punched non-woven fabric is sent to the cold roll for rapid cooling and setting to form a non-woven needle-punched filter felt as the base layer; the temperature of the hot air is 8°C lower than the melting temperature of fibers with a lower melting point.

[0049] Step 30) W...

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Abstract

The invention belongs to the field of filtering materials and discloses a low-impedance high-efficiency air filtering material and a preparation method thereof. By the air filtering material and the preparation method thereof, resistance in operation of the air filtering material can be reduced while filtering efficiency is guaranteed, and energy consumption is reduced. The air filtering material comprises a base layer and a thin film layer, the thin film layer is fixedly connected to the surface of the base layer, the base layer is a nonwoven needled filter felt, and the thin film layer is a nano fiber nonwoven layer which is repeatedly and cyclically sprayed to the surface of the base layer by means of electrostatic spinning.

Description

technical field [0001] The invention relates to an air filter material, in particular to a low-resistance high-efficiency air filter material and a preparation method thereof. Background technique [0002] The role of the air filter material is to intercept and capture dust through fibers to achieve the purpose of gas-solid separation. Air filter materials can intercept dust in the air. Generally speaking, in order to improve the filtration efficiency, the air filter material is made very dense. Although the dense air filter material can improve the filtration efficiency, the resistance of the air filter material is very high when it works, resulting in high energy consumption. Most of the air filter materials used now have the performance characteristics of high efficiency and high energy consumption. Contents of the invention [0003] The technical problem to be solved by the present invention is: to provide a low-impedance high-efficiency air filter material and its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B32B5/14
CPCB01D39/14B32B5/14B01D2239/10Y02A50/2351
Inventor 王爱民王润黎李坤潮
Owner JIANGSU FILTERTEX FILTER MATERIAL
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