全氢罩式退火炉加热罩烧嘴的改进

Burner Improvement of Full-hydrogen Bell-type Annealing Furnace

针对全氢罩式退火炉加热罩烧嘴存在煤气和空气混合不均匀、煤气燃烧不充分、煤气消耗高等问题,对烧嘴结构进行了改进,即在煤气管路内部靠近出口端的部位增设上、下空气导入支管,将原单一集中的煤气出口通道改进为5路分散布置的煤气出口通道,使一次点火成功率由82%提高到91%,吨钢煤气消耗由104m3减少到81m3。

In view of the serial of problems of burner of the heating hood of the full-hydrogen bell-type annea- ling furnace, such as gas and air mixture not uniform, gas combustion not sufficient and gas consumption high, the structure of burner was improved, i.e. the trachea road close to the outlet end was added up and be low pipe to lead-in air , the gas outlet channel original concentration was improved as the gas outlet channel 5 scattered layout. So, ignition rate increased from 82% to 91%, gas consumption decreased from 104ma/t to 81ma/t .