A kind of method utilizing mud and subway shoveling sintering self-insulating brick

A kind of method utilizing mud and subway shoveling sintering self-insulating brick

  • CN 106,116,670 A
  • Filed: 06/17/2016
  • Published: 11/16/2016
  • Est. Priority Date: 06/17/2016
  • Status: Active Application
First Claim
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1. the method utilizing mud and subway shoveling sintering self-insulating brick, it is characterised in that:

  • comprise the following steps;

    (1) sewage adds flocculation aid in settlement treatment process, and the mud precipitated is dehydrated through pressure filter, until the containing of mudWater rate reaches 40%-70%, standby;

    (2) subway shoveling is dried 1-2 days naturally, until moisture content is 20%-30%, standby;

    (3) by mud and the subway shoveling mixing machinery stirring of 70-80 weight portion, the most pre-homogenizing 6-of 20-30 weight portion12h, then it is aged 12-24h;

    (4) sawdust pore creating material or the mixing of straw pore creating material of 0.01-0.1 weight portion are added toward the raw material after ageing, it is thus achieved that blank;

    (5) blank is carried out vacuum plasticity extrusion molding, obtain adobe;

    (6) adobe is sent into hothouse and is dried to moisture content is 5%-8%, is then fed into tunnel cave roasting, and sintering temperature is 950DEG C-1050 DEG C, sintering time is 5h-8h, obtains self-insulating brick.

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