Coal gangue is solid waste produced after coal washing in coal preparation plant, and it is hard rock. There has been no effective way to use resources before, so we can only pile up large sites into abandoned mountains. With the appearance of mobile crushing station of coal gangue and the fierceness of machine-made sand industry, making it into machine-made sand has become a new way for its resource utilization.

1, what is the performance of gangue manufactured sand?

Machine-made sand produced from coal gangue has good adhesion and compressive properties, and its fineness and gradation can be adjusted through technological process. In addition, its machine-made sand products also have the characteristics of obvious edges and corners and needle-like components.

2, coal gangue machine-made sand production equipment and technology

Main production equipment: movable jaw crushing station of coal gangue, movable impact crushing station of coal gangue, sand making machine and movable finished product screening station.

The production process of coal gangue manufactured sand is as follows: the coal gangue raw materials are sent to the receiving hopper of coal gangue moving jaw crushing station by excavator, and are roughly crushed and screened by moving jaw crushing equipment; The screened materials are sent back to the feed hopper by the belt conveyor, and the screened materials are sent to the impact mobile crushing station for further fine crushing and grading, and then enter the sand making machine for plastic treatment, and then are graded by the mobile finished product screening station, and graded and mixed according to product requirements, so as to obtain machine-made sand products.

3. The application way of coal gangue machine-made sand

Machine-made sand products made of coal gangue can be used as raw materials for producing recycled bricks and permeable bricks, as well as as fillers or aggregates for paving roads and building concrete, which can bring good application effects.

Using coal gangue mobile crushing station to make coal gangue into machine-made sand products not only reduces the space occupied by coal gangue accumulation, but also realizes resource reuse and improves the value of coal gangue.