The effect of grade of iron and steel scrap and charge matching mode on electric power consumption

tap to tap time and metallurgical quality of an 150 t Fuchs shaft furnace at Zhusteel. Results show that the requirements of max adding amount of pig iron and sponge iron

match of capacity of up and down procedure

control of residual elements in products and steelmaking indexes must be consulted in mixture charging process to get a reasonable balance in terms of quality

cost and efficiency. To speed scrap melting

it is available to add more pig iron and / or quality scrap at bottom of first basket

and charge a number of quality scrap at top of final basket above light and thin scrap to avoid the scrap knot while the overburden of pig iron is not available at top to avoid over carbon content in liquid led to prolonging tap to tap time.