日钢高炉煤气系统腐蚀原因及改进方向

摘要

Detailed analysis reason of Rizhao steel blast furnace gas transmission corrosion, consider that the root cause of the serious corrosion of gas transmission system is the low temperature, the high moisture of the gas and the dusts erosion, point out the subsequent direction of improvement. Confirm the advanced concepts ＂Anterograde bases, Active furnace kernel, High coal ratio, High gas temperature, High gas flow＂ in operation is the key that to improve the slag desulfurization capacity and mitigation of blast furnace gas system corrosion.%对日钢高炉煤气系统腐蚀的原因进行了详细分析，认为煤气温度低，煤气含水量大，粉尘冲刷是造成煤气系统腐蚀严重的根本原因，并提出了后续改进方向，降低煤气含水量、提高布袋除尘效果降低煤气含尘、优化高炉渣相及确立高炉“顺行为基础，活跃的炉缸为核心，高煤比、高风温、大风量操作”的先进操作理念是提高炉渣脱硫能力，减缓高炉煤气系统腐蚀的关键。