High-temperature dust-removing filter material and preparation method thereof

A high-temperature dust removal and filter material technology, which is applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve the problem of continuous work in an environment of 240~280°C, and achieve simple, convenient and economical reverse dust cleaning Production cost, impact resistance improvement effect

Inactive Publication Date: 2016-06-08
LIGHTING TAIWAN
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] Chinese patent CN201110199266.X "Composite filter material for high-temperature flue gas bag-type dust removal system and its preparation method", the invention adopts the method of setting a The dust-facing surface is composed of sulfonamide and aramid mixed fibers. The lower surface of the base cloth is provided with a bottom layer composed of sulfone and aramid mixed fibers. The method of making composite filter material to improve its high temperature resistance, but the filter material can only continue to work in the environment of 240~280 ℃

Method used

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  • High-temperature dust-removing filter material and preparation method thereof

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Embodiment 1

[0027] A high-temperature dust-removing filter material and a preparation method thereof, characterized in that the high-temperature dust-removal filter material comprises a metal fiber felt layer, a PTFE film layer, and a PPS fiber layer arranged in sequence, and the PTFE film layer is bonded to the The metal fiber layer is bonded, and the PPS fiber layer is entangled with the PTFE film layer through a hydroentanglement process, and its specific production process is as follows:

[0028] 1) Preparation of metal fiber felt: Metal fiber filaments are produced by melt spinning, and the metal contained in the metal fiber filaments includes 1.20wt% magnesium, 2.30wt% manganese, 0.15wt% titanium, and the rest is aluminum and impurities (iron, copper, zinc, etc.), in which impurities should be less than 0.80wt%, the diameter of the metal fiber is 2μm, and the length is 1.5m; the metal fiber is non-woven, laminated and then sintered at a high temperature of 1700°C Make a metal fiber ...

Embodiment 2

[0036] A high-temperature dust-removing filter material and a preparation method thereof, characterized in that the high-temperature dust-removal filter material comprises a metal fiber felt layer, a PTFE film layer, and a PPS fiber layer arranged in sequence, and the PTFE film layer is bonded to the The metal fiber layer is bonded, and the PPS fiber layer is entangled with the PTFE film layer through a hydroentanglement process, and its specific production process is as follows:

[0037]1) Preparation of metal fiber felt: Metal fiber filaments are produced by melt spinning, and the metal contained in the metal fiber filaments includes 1.20wt% magnesium, 2.30wt% manganese, 0.15wt% titanium, and the rest is aluminum and impurities (iron, copper, zinc, etc.), in which impurities should be less than 0.80wt%, the diameter of the metal fiber is 2μm, and the length is 1.5m; the metal fiber is non-woven, laminated and then sintered at a high temperature of 1700°C Make a metal fiber f...

Embodiment 3

[0045] A high-temperature dust-removing filter material and a preparation method thereof, characterized in that the high-temperature dust-removal filter material comprises a metal fiber felt layer, a PTFE film layer, and a PPS fiber layer arranged in sequence, and the PTFE film layer is bonded to the The metal fiber layer is bonded, and the PPS fiber layer is entangled with the PTFE film layer through a hydroentanglement process, and its specific production process is as follows:

[0046] 1) Preparation of metal fiber felt: Metal fiber filaments are produced by melt spinning, and the metal contained in the metal fiber filaments includes 1.20wt% magnesium, 2.30wt% manganese, 0.15wt% titanium, and the rest is aluminum and impurities (iron, copper, zinc, etc.), in which impurities should be less than 0.80wt%, the diameter of the metal fiber is 2μm, and the length is 1.5m; the metal fiber is non-woven, laminated and then sintered at a high temperature of 1700°C Make a metal fiber ...

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Abstract

The invention discloses high-temperature dust-removing filter material and a preparation method thereof. The high-temperature dust-removing filter material is characterized by comprising a metal fiber felt layer, a PTFE membrane layer and a PPS fiber layer which are sequentially arranged. The PTFE membrane layer is adhered to the metal fiber layer through an adhesive-free hot pressing technology. The PPS fiber layer is tangled with the PTFE membrane layer through a spunlace process. The high-temperature dust-removing filter material has the advantages that the metal fiber layer is used as the windward side of the filter material to effectively increase the high temperature resistance of the filter material, the composite structure of the metal fiber felt layer, the PTFE membrane layer and the PPS fiber layer allows the filter material to be good in filter efficiency and tearing resistance, high temperature delay can be filtered effectively, and long service life is achieved.

Description

technical field [0001] The invention relates to the technical field of industrial dust removal, in particular to a high-temperature dust removal filter material and a preparation method thereof. Background technique [0002] At present, my country's economy has entered a stage of high-speed development, and heavy industry, which mainly consumes resources and energy, is developing rapidly. While the rapid development of these industries has brought economic development to the society, it has also brought serious environmental pollution problems, mainly manifested in the emission of air pollutants such as high-temperature flue gas and soot-like particles. [0003] Bag filter is one of the high-temperature flue gas purification and filtration equipment. It can effectively remove dust and capture dust of different natures to achieve the purpose of effectively improving the environment. The filter material is the key material of the bag filter. At present, the common high-temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D39/14B32B15/02B32B15/082B32B27/08B32B27/02B32B27/12B32B27/28B32B5/06B32B37/02B32B37/06B32B37/10
CPCB01D39/14B01D2239/065B32B5/02B32B5/06B32B15/082B32B27/08B32B27/12B32B27/28B32B37/02B32B37/06B32B37/10B32B2262/02B32B2262/103
Inventor 单灵阳李成雄付春喜张凤林
Owner LIGHTING TAIWAN
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