Crystalline silicon cut three-grade sand resource utilization method

Crystalline silicon cut three-grade sand resource utilization method

  • CN 105,884,328 A
  • Filed: 04/07/2016
  • Published: 08/24/2016
  • Est. Priority Date: 04/07/2016
  • Status: Active Application
First Claim
Patent Images

1. three grades of sand resource utilization method of crystal silicon cutting, is characterized in that:

  • comprise the following steps;

    (1) pretreatment;

    printing and dyeing sludge, clay are dried through 80~

    120 DEG C of air dry ovens respectively, willPrinting and dyeing sludge, the clay dried cross 40 mesh~

    100 mesh sieves respectively, standby;

    (2) raw material weighs;

    weighs crystal silicon respectively by following percentage by weight and cuts three grades of sand, flyash and pre-Printing and dyeing sludge after process, clay;

    crystal silicon cuts three grades of sand 5~

    40%, flyash 20~

    80%, printing and dyeing dirtMud 0~

    70%, clay 0~

    60%, add auxiliary agent 0~

    15%;

    (3) raw material step (2) weighed adds water and grinds, and mix homogeneously makes pellet;

    (4) pellet puts into drying baker, and 60~

    150 DEG C are dried 0.5~

    10 hour;

    (5) pellet after drying, first 300~

    600 DEG C of pre-burnings 10~

    60 minutes, then 850~

    1250 DEG CRoasting 10~

    60 minutes, cooling, obtain light ceramic.

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