论文部分内容阅读
攀钢4号高炉(1350m~3)至今已生产10年半,已超过其8～10年的设计炉龄,预计本代炉役寿命可达到15年。攀钢4号高炉在高效长寿的实践中,取得了一些经验:①维持合适的鼓风动能;②坚持稳定顺行的方针,推行定风温操作,用喷煤量对炉况进行调节,既能节焦增铁,又能稳定炉况;③采取加重边缘的料制与中心加焦相结合,能稳定煤气流,进而稳定炉况;④充沛的炉温、合适的渣中TiO_2含量以及合适的炉渣碱度是稳定炉底温度的关键;⑤针对高炉冷却系统破损严重的情况,采取加重边缘、喷涂造衬、更换部分铜冷却板、焊补炉皮等措施是行之有效的方法。
Panzhihua Iron and Steel 4 blast furnace (1350m ~ 3) has been produced for 10 years and a half, has exceeded its design of 8 to 10 years of furnace life is expected to have the life of this generation of furnaces up to 15 years. Panzhihua Iron and Steel 4 blast furnace in the practice of efficient longevity, made some experience: ① maintain appropriate blast kinetic energy; ② adhere to the principle of stable and forward-going, the implementation of the wind temperature operation, with the amount of coal spray on the furnace conditions, both Can focus coke iron, but also to stabilize the furnace conditions; ③ to take aggravating edge of the material system and the center of coke combination, can stabilize the gas flow, and then stabilize the furnace conditions; ④ plenty of furnace temperature, appropriate slag TiO_2 content and appropriate Slag basicity is the key to stabilize the bottom temperature; ⑤ blast furnace cooling system for serious damage to the situation, to increase the edge, spray lining, replacement of some of the copper cooling plate, welding repair stove skin and other measures is an effective method.