Preparation method of shale sludge haydite

Preparation method of shale sludge haydite

  • CN 104,876,540 A
  • Filed: 05/20/2015
  • Published: 09/02/2015
  • Est. Priority Date: 05/20/2015
  • Status: Active Application
First Claim
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1. a preparation method for shale sludge ceramsite, is characterized in that, comprises the following steps:

  • (1) be that 2-3;

    7-8 mix with shale with weight ratio by mud, stir secondary fermentation 7-10 days;

    (2) material stirring after fermentation is even, send into double-roller granulator and granulate, obtain the spherolite that particle diameter is 8-16mm;

    (3) spherolite is sent into rotary kiln and carry out pre-heating drying and roasting, pre-heating drying temperature is 400-500 DEG C, enters firing section when moisture percentage amounts is less than 1%, and maturing temperature is 1180-1200 DEG C, and roasting time is 130s, obtained shale sludge ceramsite.

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