PULVERISED COAL FOR BLAST FURNACE Russian patent published in 2012 - IPC C10L5/00 C21B5/00 

FIELD: metallurgy.

SUBSTANCE: fuel consists of mixture of low-sulphur and low-ash coal, at content of high-volatile coal in mixture of not more than 60% and low-volatile coal - not less than 40%; at that, proximate analysis parameters in pulverised coal on as-dry basis shall meet the requirements: A^d≤8.5%; S^d _t≤0.85%; V^d≤30.0%, where: A^d - ash content; S^d _t - total sulphur; V^d - volatile matter.

EFFECT: invention allows obtaining pulverised coal with optimum coal parameters, intensifying fuel combustion in the zone of blast furnace tuyeres, reducing specific coke flow rate in blast-furnace process of cast iron, improving thermal performance of blast furnace and increasing coefficient of coke replacement with pulverised coal in blast furnace.

1 cl, 3 ex