Coal Gangue Mill

Coal gangue is a solid waste discharged during the process of excavation, mining and coal washing, mainly used for the production of construction materials such as lightweight aggregate of cement, concrete, and refractory bricks. It can also be used to recover coal, co-firing coal and gangue to generate electricity, to produce chemical products such as crystalline aluminum chloride, water glass, and extraction. Precious and rare metals can also be used as fertilizer

Applications

Coal gangue powder can be generally divided into four stages:

The first stage: Crushing
Raw Coal gangue material should be crushed by primary crusher to 0-50mm then can enter the mill.

The second stage: Milling
The small pieces of Coal gangue after crushed are sent to the buffer silo by the bucket elevator, then goes into the grinding chamber of the mill by the vibrating feeder before grinding mill.
For fine powder processing, LM Vertical Mill, MTW European Type Grinding Mill and MRN Pendulum Roller Grinding Mill are most economical and reasonable equipment.

The third stage: Grading
The powdered material is separated by the classifier, the unqualified powder will be returned to the grinding mill chamber for re-milling.

The fourth stage: Collecting
Fine powder complies with the fineness and airflow go through the pipe into the dust collector for separation and collection. The finished powder will be transmitted to bucket elevator by screw conveyor and lifted into Silo for storage by Bucket elevator , then packed uniformly by powder tanker or automatic packing machine.

Required equipment

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