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Composite micropore filter material

A filter material and microporous technology, which is applied in the field of industrial high temperature flue gas filtration and dust removal, can solve the problems of unfavorable development and popularization, the high price of P84 fiber, and the increase of the production cost of filter material, etc., and achieves good flame retardancy and excellent high temperature resistance. The effect of improving the filtration efficiency

Active Publication Date: 2011-04-13
XIAMEN ZHONGCHUANG ENVIRONMENTAL TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, P84 fiber is expensive. If the filter material is simply made of P84 fiber, the production cost of the filter material will be greatly increased, thereby increasing the price, which is not conducive to market development and application.

Method used

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  • Composite micropore filter material
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Embodiment Construction

[0015] Such as figure 1 As shown, the implementation structure diagram of a composite microporous filter material provided by the present invention includes a base cloth layer 2, an upper attachment layer 1 attached to the upper side of the base cloth layer and a lower attachment layer attached to the lower side of the base cloth layer. Layer 3, the base fabric layer 2 is PTFE (polytetrafluoroethylene) filament base cloth (of course, it can also be polyimide short yarn base cloth or polysulfone fiber short yarn base cloth), and the upper adhesion layer 1 is PSA (polytetrafluoroethylene) Sulfonyl) short fiber and P84 (polyimide) short fiber blended layer, and the weight ratio of PSA short fiber and P84 fiber can be 1:1~9:1 (5:1 in this embodiment); The adhesion layer 3 adopts the PSA short fiber layer with a mass percentage of 100%, and the upper and lower adhesion layers 1 and 3 are respectively laid on the upper and lower sides of the base cloth layer 2 and then stitched toge...

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Abstract

The invention discloses a composite micropore filter material comprising a base cloth layer, an upper attachment layer attached to the upper side of the base cloth layer and a lower attaching layer attached to the lower side of the base cloth layer, wherein the base cloth layer is one of polyimide short yarn base cloth, aromatic polysulphone shot yarn base cloth and polytetrafluoroethylene filament base cloth; the upper attaching layer is a mixture of aromatic polysulphone staple fibers and polyimide staple fibers; the lower attaching layer is pure aromatic polysulphone staple fiber; and the upper attaching layer and the lower attaching layer are paved on two sides of the base cloth layer and formed by closely stabling, wherein the close stabling is compounded by a needling process with aspun-lacing process. The filtering material has the characteristics of high temperature and corrosion resistance, low production cost and high filter precision.

Description

technical field [0001] The invention relates to the technical field of industrial high-temperature flue gas filtration and dust removal, in particular to a polyimide-filled polysulfone fiber composite microporous filter material. Background technique [0002] In recent years, my country's heavy chemical industry (electric power, building materials, metallurgy, chemical industry, etc.) based on resources and energy consumption has developed rapidly, becoming the world's largest producer of steel, cement, coal, and chemical fiber, and the second largest producer of electric power, non-ferrous metals, etc. Metal and chemical fertilizer producing countries have brought about environmental pollution problems. The country has successively revised the emission values ​​formulated by various boilers and kilns in the industrial field, and the emission concentration values ​​have dropped significantly. The use of bag dust removal technology can reach or even be less than standard regula...

Claims

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Application Information

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IPC IPC(8): B01D39/16B32B5/26
Inventor 蔡伟龙罗祥波罗章生丘国强洪丽美
Owner XIAMEN ZHONGCHUANG ENVIRONMENTAL TECH CO LTD
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