Coal gangue is essentially a solid waste, and the sulfide it contains will not only pollute the air, but also pollute the water body and farmland. But coal gangue is not useless waste. After a series of processing, it can be made into machine-made sand and used in railways, highways, construction and other industries.

The advantages of coal gangue

1. Appearance
Compared with natural sand, coal gangue has distinct and sharp edges and corners, and contains more needles and is rougher, and has a big difference in appearance;

2. Fineness modulus
A fineness modulus of natural sand has multiple gradations, which are fixed and cannot be controlled artificially. The fineness modulus of coal gangue can be controlled and organized through artificial production processes;

3. Performance

The machine-made sand made of coal gangue has better adhesion, good compression resistance and long service life.

What equipment is needed for coal gangue sand making?

The production process of coal gangue sand making production line is mainly composed of feeding, coarse crushing, medium and fine crushing, sand making, screening, conveying and other links, which can be divided into fixed production lines and mobile production lines.

1. Fixed production line
The stability of the fixed production line is strong, the output is larger, and it will not be affected and restricted by the environment, and the gradation of the manufactured sand produced is more reasonable. Its main production equipment includes vibrating feeder, vibrating screen, belt conveyor, jaw crusher, impact crusher, vibrating screen, three-in-one sand making machine and other equipment. Sand machines and fine sand recovery machines.

2. Mobile production line
The mobile production line is more flexible in movement, occupies a small area, convenient in construction, and is operated intelligently, making it safer and more convenient for the staff to operate. Its main production equipment includes mobile jaw crusher, mobile impact crusher, mobile sand making machine, etc.