四川省威远钢铁厂是一个小型的钢铁联合企业,他们的高炉矿渣利用率已经超过100%。他们把每年生产的矿渣全部利用掉,还嫌不足,就开挖几年前或十几年前的旧矿渣加以利用。他们把一部分矿渣冲成水渣,用土办法烘干后,配上石膏和煅烧白云石,磨细后制成石膏矿渣水泥,其中水渣占84%左右,石膏占15%左 Sichuan Weiyuan Iron and Steel Plant is a small iron and steel conglomerate whose blast furnace slag utilization rate has exceeded 100%. They used all the slag they produced every year. It was not enough. They used the old slag that was excavated several years ago or more than ten years ago. They washed a part of the slag into water slag, dried it with soil, and added gypsum and calcined dolomite. After grinding, it was made into gypsum slag cement, which accounted for about 84% of the slag, and the plaster accounted for 15% of the left.