What are the uses of crushed coal gangue

Although coal gangue is a solid waste product generated during coal mining and washing processes, it is said that after crushing and processing, it can be utilised in certain fields and possesses commercial value. What exactly are the uses of crushed coal gangue? Here is the explanation:

What are the uses of crushed coal gangue?

1. Brick manufacturing

After crushing, coal gangue undergoes shaping, drying, and firing processes to produce coal gangue bricks. These bricks boast twice the strength of ordinary clay bricks and exhibit excellent quality.

2. Production of cement

Following carbon pre-selection and activation treatment, crushed coal gangue yields active alumina and silica. These serve as reactive cementitious materials, offering the advantage of conserving clay and iron ore resources.

3. Calcination of kaolin

Coal gangue contains up to 70% kaolin, hence it is commonly termed coal-based kaolinite. Following pulverisation and purification, it serves as a premium raw material for manufacturing calcined kaolin.

4. As Subgrade Material

When crushed into sand, coal gangue meets requirements for particle size distribution, durability, and density, making it suitable for concrete, mortar, and road subbase applications.

Coal gangue crushing production lines feature multiple configuration options, with equipment specifications varying according to output requirements. These factors influence capital investment. For precise pricing of a coal gangue crusher system, please contact us via telephone, online consultation, or message. OCP Machinery will dispatch specialists to design a bespoke coal gangue production line configuration and provide a quotation. Customer service is available 24 hours for complimentary consultation.