250t转炉烟气干法除尘工艺应用

Application of dry dedusting process in 250 t converter

邯宝钢铁有限公司炼钢厂2×250t转炉采用干法(LT法)烟气净化回收工艺,该工艺由烟气冷却、净化回收及控制系统组成,主要设备有蒸发冷却器、静电除尘器、轴流引风机、切换站、煤气冷却器、放散烟囱。生产实践证明,该系统运行稳定,除尘效率高,且运行费用低,净化后的烟气含尘量仅为6.8mg/m3。

The dry dedusting process （LT Process） has been applied in the flue gas purification and recovery in the 2 × 250 t converters of Steel-making Plant of Hanbao Co. , and the LT process is composed of flue gas cooling, purifying,and control system and the equipments of the system mainly consist of evaporation cooler（EC）, Electrostatic Precipitator（EP）, Axial Flow ID Fan,Switchover Station, Exhaust Stack and Gas Cooler. Production practice demonstrates that the system is running smoothly and the dust removal rate is high,its running cost low and the dust content in the flue gas after purification only 6. 8 mg/m^3.