Coal gangue

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Introduction

Coal gangue is solid waste discharged from the process of coal mining and washing. It is low carbon dark gray rock that is much harder and associated with coal seams.

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Coal gangue grinding process

1. Coal gangue will be used for electricity production after primary crushing by crusher: mainly co-fire washed medium coal and washed gangue to generate electricity. The generally heating value is 3,500 kcal per kilogram;
2. Recycling coal and pyrite Method Two: recycle pyrite, washed mixing coal and medium coal from coal preparation jigger- shaker flow plane;
3. Recycling coal and pyrite Method One: By simple technology, to wash and elect high quality coal from coal gangue, at the same time, screen out low-quality coal and pick out pyrite. Or recycle pyrite, washed mixing coal and medium coal from coal preparation jigger- shaker flow plane. The recycled coal can be used for power boiler fuel, washed gangue can be used for construction materials, and pyrite can be used as chemical raw materials;
4. To produce building materials: Using coal gangue for brick production instead of clay as a raw material, by this way, can reduce fertile land dig;

Case

Application field

Desulfurization

Chemical industry

Metallurgy

Agriculture

Building

Building materials

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