Making method of coal gangue sintered brick

Abstract

The invention discloses a making method of a coal gangue sintered brick. The making method comprises the following steps: step 1, crushing raw material particles of 20-30 weight parts of a coal gangue powder, 5-10 weight parts of cement, 3-8 weight parts of an aluminum powder, 3-5 weight parts of gypsum, 2-5 weight parts of corundum mullite, 3-5 weight parts of a shikakai powder, 20-25 weight parts of fine sand, 8-12 weight parts of lime and 8-12 weight parts of expanded perlite into crushed materials; step 2, weighing all the raw materials in parts by weight, then mixing the coal gangue with water, pulping together with the gypsum, pumping into a pulp storage tank and pouring the lime, the cement, the aluminum powder, the shikakai powder, the fine sand, the corundum mullite and the expanded perlite for stirring so as to obtain a green brick raw material; step 3, pressing the green brick raw material made in the step 2 into a green blank in a manner of hydraulic extrusion molding by a hydraulic machine and then conveying into a tunnel kiln for sintering to obtain a finished brick. The making method disclosed by the invention is reasonable in formula and has the characteristics that the process design is reasonable, the operation is simple, energy resources are saved, and wastes are comprehensively utilized.

Description

technical field [0001] The invention relates to a production method of stone bricks, in particular to a production method of coal gangue sintered bricks. Background technique [0002] With the development of society, the demand for stone bricks has been increasing. In the past few years, a lot of clay has been used to produce building bricks, which has artificially destroyed a lot of good farmland. In urban and urban and rural construction, bricks and tiles are used in conjunction with new In the competition of building materials, it is still an important building material. A large amount of coal gangue discharged every year in our country is randomly stacked and occupies land, which not only pollutes the environment, but also causes waste of resources. At present, in order to properly deal with coal gangue, building material manufacturers have begun to use coal gangue to manufacture fired bricks, but this kind of fired bricks are not sufficiently sintered during the produc...

AI Technical Summary

Problems solved by technology

A large amount of coal gangue discharged in our country every year, randomly stacked and occupied land, not only pollutes the environment, but also causes waste of resources

At present, in order to properly deal with coal gangue, building material manufacturers begin to use coal gangue to manufacture fired bricks, but this kind of fired bricks are not fully sintered during the production process, and the color of the fired bricks will be uneven.