The technology involves treating the high-ash thermal coal for reducing the ash level by adopting the gravity concentration and flotation techniques in which the ash level can be reduced to 10-15% from a feed of 30-35% ash depending on the coal characteristics. The clean coal fines thus produced is utilised for injection in blast furnance.
Outcome / Output
The ash level can be reduced to 10-15% from a feed of 30-35% ash depending on the coal characteristics.
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