Taking the new No. 5 blast furnace of Ansteel as the research object, a comparative analysis was conducted on the circumferential distribution of hot blast in the blast furnace under two operating conditions of considering and not considering the tuyere raceway. The results show that, when the tuyere parameters are consistent, the hot blast distribution rule without considering the tuyere raceway is the same as that with considering the tuyere raceway, i.e., the blast volume and blast kinetic energy at 0° , 90° , 180° and 270° positions of the BF circumference are large, the blast volume and blast kinetic energy at 45° , 135° , 225° and 315° positions are small. The standard range of blast volume under considering and not considering raceway is 3.65 m3/min and 7.29 m3/min and the standard deviation is 1.32 and 2.71 respectively. The standard range of blowing kinetic energy under considering and not considering raceway is 9.93 kJ/s and 19.90 kJ/s and the standard deviation is 3.62 and 7.41 respectively. It was found thatthe uneven distribution of hot blast and blast kinetic energy when considering raceway is more obvious than that without considering the raceway.
关键词
高炉/风口回旋区/热风分配/风量/鼓风动能
Key words
blast furnace/raceway/hot blast distribution/blast volume/blast kinetic energy
维普
万方数据