Fabricating method of pure colliery waste brick

Abstract

The invention relates to a fabricating method of a pure colliery waste brick, which comprises the following steps: mixing driving recrement with coal refuse evenly, wherein the driving recrement occupies 25-35 of the weight percent, and the balance is the coal refuse; crushing the driving recrement and the coal refuse; adding 5-7 percent of water into the crushed coal refuse and the crushed driving recrement mixture; aging the mixture in an ageing chamber for 22-26h, molding the mixture into the brick by a brick molding machine and directly placing the brick into a brick kiln to be fired for 10-20h for fabricating the finished product. All the bricks are overlapped with each other at one end in the brick kiln. The method has the characteristics of simple process without adding clay, short firing time, no coal consumption during the firing, small space occupation and time and labor saving without drying the brick, energy saving, multipurpose use of waste, agricultural land protection, less land occupation, little investment, and the like, thereby having better popularization and practicability values.

Description

technical field [0001] The invention relates to a method for making bricks, in particular to a method for making pure gangue bricks. Background technique [0002] Brick is a commonly used building material. Clay bricks are gradually replaced by coal gangue bricks because they consume a lot of clay and cause waste of land resources. The current coal gangue bricks are made by mixing coal gangue and clay and then firing, which still consumes clay and coal during the firing process, which has the disadvantages of wasting land resources, high energy consumption, and high production costs. Contents of the invention [0003] The object of the present invention is to provide a method for making pure coal gangue bricks with simple process, no need to add clay, short firing time, no coal consumption during the firing process, no need to dry the bricks, and occupying a small space. [0004] In order to achieve the above object, the technical solution adopted by the present invention...

AI Technical Summary

Problems solved by technology

The current coal gangue bricks are made by mixing coal gangue and clay and then firing, which still consumes clay and coal during the firing process, which has the disadvantages of wasting land resources, high energy consumption, and high production costs.