Mine tailing brick for roads and preparation method thereof

Abstract

The invention discloses a mine tailing brick for roads and a preparation method of the mine tailing brick. The mine tailing brick comprises tailing slag, medium sand, cement, water and additives. Thepreparation method comprises the following steps: S1, dry mixing; S2, wet mixing; and S3, pouring and molding. According to the preparation method, two times of processing molding are adopted throughdry method and wet method, so that the strength and moisture of the molded product are easy to control; the molded product is pressed in a molding cavity, so that brick preparation is more convenient,no firing is needed, no steaming is needed, energy is saved, no pollution is caused; in pressing, a vacuum mechanism is adopted for extracting air, on one hand, the downward pressure of a pressing plate can be larger, the reverse abutting force of air on the pressing plate is eliminated, and on the other hand, air holes in the brick can be eliminated, so that the strength of the brick is higher.

Description

technical field [0001] The invention belongs to the technical field of comprehensive utilization of mine tailings, in particular to a mine tailings brick for roads and a preparation method thereof. Background technique [0002] In the sand making process of mine stone mining, a large amount of tailings will be produced; tailings are waste after beneficiation, and are the main component of industrial solid waste. Discarding tailings not only needs to occupy a lot of land, but also affects the surrounding ecological environment. Cause a lot of damage, and have to invest in their own processing and maintenance costs; [0003] Mine tailings can be processed into bricks for use in construction and road paving. However, the existing preparation methods are relatively complicated. In order to ensure the strength of bricks, processes such as fire burning and steam curing are required, which consumes a lot of energy and costs high. Contents of the invention [0004] Aiming at the ...

AI Technical Summary

Problems solved by technology

[0002] In the sand making process of mine stone mining, a large amount of tailings will be produced; tailings are waste after beneficiation, and are the main component of industrial solid waste. Discarding tailings not only needs to occupy a lot of land, but also affects the surrounding ecological environment. Cause a lot of damage, and have to invest in their own processing and maintenance costs;

[0003] Mine tailings can be processed into bricks for use in construction and road paving. However, the existing preparation methods are relatively complicated. In order to ensure the strength of bricks, processes such as fire burning and steam curing are required, which consumes a lot of energy and costs.

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