A kind of preparation method of active carbon filter

A kind of preparation method of active carbon filter

  • CN 103,768,841 B
  • Filed: 10/17/2012
  • Issued: 11/25/2015
  • Est. Priority Date: 10/17/2012
  • Status: Active Grant
First Claim
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1. a preparation method for active carbon filter, is characterized in that, comprises the following steps:

  • (1) raw material is prepared;

    first, 100-325 object powdered activated carbon is dropped into feed reservoir, again powdered activated for 100-250 object zeolite is dropped into feed reservoir, appropriate adhesive is dropped into feed reservoir, be that 1;

    the 10 pair of feed reservoir injects water according to weight ratio, again synthetic fibers are dropped into feed reservoir, feed reservoir is stirred 20 minutes by automatic stirrer, two-layer nonwoven is wrapped on porous plastics pipe;

    (2) the suction method of forming is adopted;

    pumped by the raw material of feed reservoir in raw material tank, porous plastics pipe is arranged on the central authorities of suction and injection device, opens suction and injection device, and the raw material in groove is gathered on porous plastics pipe and is also finally full of whole suction and injection device, again suction and injection device is backed off, obtain cylindrical filter;

    (3) injection moulding is adopted;

    porous plastics pipe is arranged on the central authorities on injection of metallic mould, by raw material under the pressure of 0.4Mpa-1Mpa, slowly be injected in metal die, when maximum injection pressure reaches 1Mpa, keep injection pressure 2 seconds, raw material will be gathered in finally be full of whole injection of metallic mould in the porous plastics pipe injection of metallic mould that is axle center, finally, stop injection pressure, injection of metallic mould is backed off, obtains cylindrical filter;

    (4) when last phase tidying up being carried out to the filter adopting above step to obtain, columned filter is needed to place constant temperature oven, the high temperature evaporate to dryness of 110 DEG C-120 DEG C, again by non-woven wraps in cylindrical filter, sheath net is wrapped in and is surrounded by the cylindrical filter of non-woven fabrics, the two ends bonding plastic cement seal cover of described cylindrical filter, be enclosed within cylindrical filter by clear PE bag, and heating makes the thermal contraction of PE bag wrap column type filter.

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