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;