A method for incorporation of coal-fired fuel INto the blast furnace hearth

摘要

The invention relates to the ferrous metallurgy, in particular to the blast-furnace production. A method for incorporation of coal-fired fuel into the blast furnace hearth involves supplying the coal-fired fuel into the blowing flow before flowing out of the tuyere at an angle of 30-60° to blowing flow, at that ratio impulse of coal-fired fuel flow to the impulse of blowing is equal to 0.002-0.03. Use of the proposed method allows to increase the coal-fired fuel combustion degree by 2.2-3 times.