高温及煤气环境下进入高炉炉内作业实践

Working Practice of Entering the Blast Furnace Under High Temperature and Gas Environment

包钢7~#高炉炉喉保护板破裂、炉顶煤气封罩喷涂料脱落,通常需10天工期的项修方式进行检修,为了节省工期,在不凉炉的状态下,通过采取压炉、强制通风、使用正压式呼吸器等一系列特殊措施,在高温、煤气的恶劣环境下进入炉内作业,缩短了工期,创造了极高效益,同时开创了高炉检修的新思路。

The fracture of throat protection plate and the furnace top sealing cover spray coating off in No. 7 blast fur- nace of Baotou Steel are usually required for repair in a 10 - day period. In order to save time meanwhile without furnace cooling down, a series of special measures such as burden distribution, forced ventilation, positive pressure respirator are taken to work into the furnace under harsh environment with high temperature and gas, which saves time, creats high effi- ciency and creats a new thought for the blast furnace maintenance.