7月8日,北钢北营原料厂对白灰竖炉进行技术改造,用粒煤代替焦炭作为白灰生产的燃料取得成功,使吨灰生产成本大幅下降,年可降成本1000余万元。该厂现有五座白灰竖炉,其中两座白灰竖炉生产一直用焦炭做燃料。随着今年焦炭供 On July 8, the Beigang Beying Raw Material Plant carried on the technological transformation to the ash shaft furnace, succeeded in replacing the coke with the coke as the fuel for the production of white ash, so that the production cost of tonnage ash dropped substantially, and the annual cost could be reduced by more than 10 million yuan. The plant has five ash shaft furnace, of which two ash shaft furnace has been used to make fuel. With this year coke supply