Activated carbon fiber sintered filter element and preparation method thereof
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A technology of activated carbon fiber and sintered filter element, applied in the field of water purification, can solve the problems of small flux, slightly poor adsorption effect, low strength, etc., and achieve the effect of good adsorption effect, good effect of removing residual chlorine and impurities, and high strength.
Inactive Publication Date: 2015-08-12
SUZHOU KAHO POLYMER TECH CO LTD
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Problems solved by technology
The extruded activated carbon powder filter element is made by adding activated carbon powder into a binder and extruding it with an extruder. Most of the particles of activated carbon powder and the micropores between them will be wrapped and blocked by the binder, so that The adsorption effect of the product is slightly poor; the activated carbon powder sintered filter element is a filter element that is mixed with ultra-high molecular weight polyethylene and activated carbon powder, then pressed, semi-melted and sintered, and formed. When sintered and formed, it is in a semi-molten state of surface melting, which will not block the micropores of the activated carbon powder more, and the opening ratio of the activated carbon powder will increase exponentially, so that the product has a better adsorption effect, but there is still a problem of low strength. , powder removal, small flux, and unsatisfactory adsorption effect
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Embodiment 1
[0025] A preparation method of activated carbon fiber sintered filter element, comprising the following steps:
[0026] 2) The activated carbon fiber is destaticized and pulverized, and the particle size after treatment is 15 μm;
[0027] 3) 40 meshes of polyethylene with a molecular weight of 1.5 million and step 1) and the obtained material are mixed uniformly according to 20 parts by weight and 20 parts;
[0028] 4) Press the mixed material obtained in step 2), and then sinter at 250°C for 50 minutes; then cool and form at 20°C.
Embodiment 2
[0030] A preparation method of activated carbon fiber sintered filter element, comprising the following steps:
[0031] 1) The activated carbon fiber is destaticized and pulverized, and the particle size after treatment is 840 μm;
[0032] 2) 300 mesh molecular weight is 6,000,000 polyethylene and the material obtained in step 1) is mixed uniformly according to 60 parts by weight and 80 parts;
[0033] 3) Press the mixed material obtained in step 2), and then sinter at 220°C for 30 minutes; then cool and form at 60°C.
Embodiment 3
[0035] A preparation method of activated carbon fiber sintered filter element, comprising the following steps:
[0036] 1) The activated carbon fiber is destaticized and pulverized, and the particle size after treatment is 15 μm;
[0037] 2) 40 meshes of polyethylene with a molecular weight of 6,000,000 and the material obtained in step 1) are mixed uniformly according to 80 parts by weight and 20 parts;
[0038] 3) Press the mixed material obtained in step 2), and then sinter at 300°C for 60 minutes; then cool and form at 20°C.
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Abstract
The invention discloses an activated carbon fiber sintered filter element and its preparation method. The preparation method comprises the following steps: mixing ultrahigh molecular weight polyethylene and activated carbon fiber, pressing, sintering, and carrying out cooling molding. In comparison with the prior art, the invention has the following beneficial effects: the prepared filter element doesn't drop powder, has high strength which is 2-3 times higher than that of a common activated carbon powder sintered filter element and will flow out little black water at the beginning (a lot of black water will flow out when an original activated carbon powder filter element begins to be used); the prepared filter element has high flux and high water yield (under the pressure of 0.2MPa, flux of an activated carbon powder filter element of 10 inches is 6.6 L/min and the total water yield is 8-10 tons; but under the same condition, flux of the activated carbon fiber filter element is 8 L/min and water yield is 10-12 tons); and the prepared filter element has a good adsorption effect: a good effect of removing residual chlorine and impurities (residual chlorine removal rate of an activated carbon powder filter element of 10 inches is 50%, but residual chlorine removal rate of the activated carbon fiber product is 65-70%).
Description
technical field [0001] The invention relates to an activated carbon fiber sintered filter element, which belongs to the field of water purification. Background technique [0002] As people pay more attention to the safety of drinking water, various filter elements for drinking water treatment appear on the market. The filter elements recognized by customers mainly include: extruded activated carbon powder filter element and sintered activated carbon powder filter element. The extruded activated carbon powder filter element is made by adding activated carbon powder into a binder and extruding it with an extruder. Most of the particles of activated carbon powder and the micropores between them will be wrapped and blocked by the binder, so that The adsorption effect of the product is slightly poor; the activated carbon powder sintered filter element is a filter element that is mixed with ultra-high molecular weight polyethylene and activated carbon powder, then pressed, semi-me...
Claims
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