Process for preparing fine rubber powder from waste rubber by normal temperature adjuvant method

Process for preparing fine rubber powder from waste rubber by normal temperature adjuvant method

  • CN 100,494,254 C
  • Filed: 01/14/2003
  • Issued: 06/03/2009
  • Est. Priority Date: 01/14/2003
  • Status: Active Grant
First Claim
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1. utilize the method for ordinary-temp assistant method for preparing refined rubber powder from waste or used rubber, it is characterized in that, described method steps is as follows:

  • 1) utilize pulley type rubber crusher that waste old is crushed to the micelle of particle diameter for 0.85-4mm;

    2) particle diameter that step

         1) is obtained is that the micelle of 0.85-4mm is sent into magnetic separator and air trap is removed steel wire, fiber foreign matter;

    3) will send into blending bunker through the micelle after removing steel wire, fiber foreign matter and mix by mechanical stirring with grinding aid from the grinding aid storage tank, and must mix material, described grinding aid is carbon black or inorganic salts solid grinding aid;

    4) the above-mentioned material that mixes is sent into umbellate form fine grinding machine and carried out pulverizing meticulous mixture;

    5) the use blower fan extracts above-mentioned meticulous mixture and it is sent into cyclonic separator isolate described grinding aid and rubber powder;

    6) use cyclone classifier further to separate above-mentioned rubber powder to such an extent that particle diameter is the fine glue powder below the 125-75 μ

    m, the rubber powder that does not reach the particle diameter requirement enters umbellate form fine grinding machine again and pulverizes;

    7) qualified fine glue powder is directly sent into finished product storage tank, packing.

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