Modern features for the optimum performance of blast furnace

Abstract

The blast furnace technology has made signiticant progress during last three and a half decades as a result of the improvements in its design and engineering. The theme of modern technological features is to increase furnace productivity and reduce the coke rate by stabilising the furnace operating conditions. The adoption of bell-less-top charging system hw; considerably improved the controllability of burden distribution. The improvements in the design of hot blast stoves. the humidification blast and the injection of pulverised coal have also contributed in the reduction of coke rate. The developments in the qU~llityand design of refractory lining and proper cooling system have made substantial contribution for prolonging the campaign life. The improvements made in the design and practice of cast house have ensured smooth discharge of hot metal and slag at regular intervals. The developments of blast furnace sensors have greatly contributed in the furnace operating technology and controlling the process more precisely.