简述了高炉冶炼喷煤是非常重要的环节,分析了近年来炉前更换煤枪已成为老大难,当换煤枪时,烧坏的煤枪抽出来,弹子阀必须快速关闭,不能有热风漏风出来,一旦漏风将弹子阀烧红,很快弹子阀就要烧穿,造成高炉休风,导致炉前管工不能生产时在线换煤枪。提出了针对煤枪出现的问题对弹子阀及煤枪进行了改进。 The blast furnace smelting coal injection is a very important part. It is analyzed that in recent years, it has been a long-term challenge to replace the coal gun in front of the furnace. When the coal gun is replaced, the burned coal gun is withdrawn. The ball valve must be closed quickly and there should be no hot air Leaking air out, once the leakage of the ball valve will burn red, soon the ball valve will burn through, resulting in blast off, leading to forerunner can not be produced when the online change gun. Proposed for the problems of coal gun on the ball valve and the gun made an improvement.