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Filter bag composite fiber high temperature dust collector

A high-temperature dust collector and composite fiber technology, applied in the direction of filtration and separation, dispersed particle filtration, chemical instruments and methods, etc., can solve the problems of high exhaust gas temperature, short service life, and high temperature resistance, and achieve good mechanical properties and long service life Long, high temperature resistance and good air permeability

Active Publication Date: 2020-07-14
KUNSHAN XINLAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the filter material of the dust collector in the prior art has a short service life and is not resistant to high temperature
However, usually the temperature of the exhaust gas discharged from the factory is high, which limits the use of filter materials, and it is necessary to provide a filter material with high temperature resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0050] The preparation method of ozone water: it is prepared by using the ozone water all-in-one machine (CFS-500) produced by Beijing Shanmei Shuimei Environmental Protection Technology Co., Ltd. The concentration of ozone in water was determined according to the iodometric method in GB / T5750.11-2006.

[0051] Test sample preparation: 5 samples were taken horizontally from the filter material of each embodiment, and the size of the sample was 50×300mm.

[0052] High-temperature mass loss test method: Treat the filter material sample at 300°C for 48 hours to test high-temperature mass loss. The mass loss calculation formula of the filter material: mass loss rate = [(m 0 -m 1 ) / m 1 ]×100%, where, m 0 is the mass of filter material before high temperature treatment, m 1 It is the quality of the filter material after high temperature treatment.

[0053] The air permeability of the filter material is a parameter that characterizes the performance of the air through the filte...

Embodiment 1

[0059] A filter bag type composite fiber high temperature dust collector comprises a filter bag.

[0060] The preparation method of described filter bag, comprises the following steps:

[0061] (1) Put the glass fiber, meta-aramid fiber and polyimide fiber into the cotton feeding box according to the mass ratio of 8:2:2, and send them to the opener by the cotton feeding curtain, and the opener will fully mix the fibers, Then the fiber is carded into a fiber net with uniform thickness by a carding machine and sent to a web-laying machine. The web-laying machine cross-lays the fibers, adds a base cloth in the middle, and then is reinforced by a needle-punching unit to obtain a plain filter felt. The surface density of raw felt is 850g / m 2 , thickness 3.26mm;

[0062] (2) Mix 50 parts of water, 2 parts of ethanol, and 1.5 parts of glycerol, stir at 200 rpm for 5 minutes, add 40 parts of polytetrafluoroethylene dispersion, 2 parts of acrylic resin, vinyl triethoxy 1.5 parts of ...

Embodiment 2

[0069] A filter bag type composite fiber high temperature dust collector comprises a filter bag.

[0070] The preparation method of described filter bag, comprises the following steps:

[0071] (1) Put the glass fiber, meta-aramid fiber and polyimide fiber into the cotton feeding box according to the mass ratio of 8:2:2, and send them to the opener by the cotton feeding curtain, and the opener will fully mix the fibers, Then the fiber is carded into a fiber net with uniform thickness by a carding machine and sent to a web-laying machine. The web-laying machine cross-lays the fibers, adds a base cloth in the middle, and then is reinforced by a needle-punching unit to obtain a plain filter felt. The surface density of raw felt is 850g / m 2 , thickness 3.26mm;

[0072] (2) Soak the obtained filter material plain felt in ozone water for 50 minutes, then wash it in 50°C water, and dry it at 90°C for 1.5 hours to obtain an oxidized filter material plain felt, wherein the filter mat...

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Abstract

The invention discloses a filter-bag-type composite-fiber high-temperature dust collector. The dust collector comprises a filter bag, and the filter bag is prepared by using composite fibers. According to the filter-bag-type composite-fiber high-temperature dust collector, the filter bag prepared by adopting the specific fibers is good in high-temperature resistance, gas permeability and mechanical properties, long in service life and suitable for the treatment of high-temperature dust-containing exhaust gas.

Description

technical field [0001] The invention belongs to the technical field of dust removal, and in particular relates to a dust collector, in particular to a filter bag type composite fiber high temperature dust collector. Background technique [0002] In order to control the increasingly serious problem of air pollution, it is necessary to purify the particulate matter in the industrial exhaust gas to meet the emission standards. The technology of removing or capturing particulate matter in exhaust gas is called flue gas dust removal technology, and the equipment used to realize this process is called dust collector or dust removal device. The working principle of the dust collector is based on the theoretical basis of the force on the dust. [0003] With the revision of my country's Air Pollution Control Law, the flue gas emission concentration control standards are more stringent, coupled with the increasing public awareness of environmental protection, increasing law enforceme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D46/02B01D39/16
CPCB01D39/16B01D46/023
Inventor 王克兰
Owner KUNSHAN XINLAN ELECTRONICS TECH
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