By combining theory with practice, the rule of charge distribution at bell less top on No 1 BF has been studied Because of flexible and right charge adjustment methods, the operation became smooth and the remarkable benefit has been gained

• 针对南钢 1号高炉生产中遇到的难题 ,将理论与实际生产结合起来 ,研究了无料钟布料的规律 ,采取灵活正确的上部调剂手段 ,逐步将生产恢复到和超出正常水平 ,并取得了显著效益