METHOD OF CAST-IRON MANUFACTURE USING OXYGEN AND HYDROGEN-RICH GAS, AND EQUIPMENT FOR ITS IMPLEMENTATION Russian patent published in 2014 - IPC C21B5/00 F27B1/00 F27D3/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to a method of cast-iron manufacture using oxygen and hydrogen-rich gas. According to the method, direct transfer of high-temperature coke, hot agglomerate and hot pellets to a furnace for cast-iron manufacture, and blowing of oxygen and hydrogen-rich combustible gas of the specified temperature to the furnace by means of oxygen and gas tuyeres located in the furnace is performed. The invention also relates to a device for cast-iron manufacture using oxygen and hydrogen-rich gas, which includes a system of raw materials, a gas system of a furnace arch, a coke gas blowing system, a dust blowing system, a system of dry slag granulation and recovery of residual heat and an oxygen system.

EFFECT: invention is aimed at obtaining of pure product, efficient use of energy and environmentally acceptable emissions.

14 cl, 2 dwg