1000m^3高炉高铝矿冶炼生产实践

Production Practice of 1 000 m^3 BF Smelting High Aluminum Ore

针对高铝炉渣难以熔化、黏度增大、流动性变差的缺点,通过改善并优化烧结配矿模型,改善配料结构、稳定炉料结构、改善焦炭质量、控制渣中镁铝比、控制渣比等优化并稳定高炉炉料结构,保证好渣铁热量,优化高炉上下部调剂等措施,提高烧结矿产量3%、转鼓指数0.4%的同时,使高炉适应了渣中铝提高对炉况的影响,保证了炉况的稳定顺行。

In view of the difficulty of mehing, high viscosity and poor fluidity of high aluminium slag, through improving and optimizing sinter blending model, optimizing and stabilizing the BF burden structure by improving batching structure, stabilizing burden structure, improving coke quality and controlling the ratio of Mg to A1 in slag and the slag ratio, ensuring good heat iron slag, optimizing adjustment between upper and lower parts and so on, the sinter output was increased by 3% and the. tumbler index by 0.4%, at the same time, the blast furnace was adapted to the influence of aluminum in the slag on the furnace condition, ensuring the stable operation of the furnace.