邢钢3号高炉(215m~3)中修后,于1990年7月12日点火开炉。由于对烘炉点火装置做了较大的改进,采用了向炉底送风点火的方法,使这次开炉受到其他因素的影响炉温长时间过低的情况下,仍达到了安全顺利、铁口好开、炉况顺行的良好效果。1.向炉底送风烘炉点火的合理性过去我厂215m~3高炉开炉均使用传统的 Xingang No. 3 blast furnace (215m ~ 3) in the repair, on July 12, 1990 ignition furnace. Due to the bigger improvement on the ignition device of the oven, the method of blowing the air to the bottom of the furnace is adopted, which makes the opening of the furnace affected by other factors and the furnace temperature is still too low for a long time, Tietou is good, the furnace goes well with the good results. 1. To the bottom of the air blast furnace ignition rationality In the past I plant 215m ~ 3 blast furnace are used to open the traditional