通过对包钢高炉喷吹用煤煤源的调查,在实验室试验研究了高炉喷吹用煤的着火温度、可磨性能、爆炸性能及燃烧性能等工艺参数;同时研究了不同煤比条件下煤粉燃烧率的变化规律,对煤粉灰熔点及灰分成分进行了分析,提出了合理选用喷吹煤种来满足包钢公司目前高妒喷吹工艺的优化。 Through the investigation of the briquette coal used in blast furnace blasting, the process parameters such as the ignition temperature, grindability, explosive performance and combustion performance of blast furnace coal were studied in laboratory experiments. In the meantime, Coal combustion rate changes, the ash ash melting point and ash content were analyzed, put forward the rational use of coal injection to meet the high hardness of Baotou Steel injection process optimization.