Steam coal preparation technique with low coal slime yield

Steam coal preparation technique with low coal slime yield

  • CN 102,179,291 A
  • Filed: 12/31/2010
  • Published: 09/14/2011
  • Est. Priority Date: 12/31/2010
  • Status: Active Application
First Claim
Patent Images

1. one kind low coal slime output thermal coal coal preparation technique comprises step:

  • (1) the thermal coal raw coal is stored in the horizontal bin, the coal storing highly is less than 10 meters;

    (2) use Sizing Crusher that raw coal is crushed to below the 200mm;

    (3) delivering to screening machine after the raw coal fragmentation sieves;

    Enter lump coal washing system greater than the coal of screen size and carry out washing;

    Coal less than screen size carries out the fine powder screening again, and the fine powder that sifts out less than 6mm directly enters the product storehouse;

    Remaining smalls enters no ballast Jie cyclone and carries out the washing deliming.

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