METHOD for electric arc furnace LOADing FOR MELTING OF titaniferous RAW MATERIAL

摘要

The invention relates to the field of ferrous metallurgy. A method of charging of electric arc furnace for melting of titaniferous raw material involves two stage loading of mixture of titaniferous ores and hard carbonaceous materials in multiple parts in the peripheral areas of the furnace and in the central area of the furnace between electrodes, at that on the first stage 18-25 % of charge is loaded through the central charging pipe, at that mass of charge, which is loaded is of 1.2-1.7 t per 1 MVA of supplied power, and on the second stage charge is loaded evenly through the central and peripheral charging pipes in a quantity of 4.5-5.5 t per 1 MVA of supplied power, at that the total quantity of the loaded charge through central charging pipe is of 37-47 %. In addition, quantity of the carbon reducing agent which is contained in carbonaceous materials, in the charge of the first and second load is of 70-80 % from a necessity on melting, and the other reducing agent is additionally introduced after melting of charge in the pure form. The invention allows to increase efficiency of melting process of titaniferous material.