OPERATION PRACTICE TO LOWER CHARGE LEVEL IN MEDIUM MAINTENANCE OF 3200 m~3 BLAST FURNACE

It is concluded the measures in operation practice of lowering charge level in 3 200 m3 blast furnace4# of Tang Steel: adopting empty charge line to recover gas,determining charge level with multi ways,atomization pouring water,strictly controlling top temperature within 250 to 300,reasonably arranging slag tapping and blast furnace tapping. With reasonable control for various operation parameters,the charge level is lowered to the preset position,the furnace condition kept in steady,the gas recovering time prolonged,the whole process is fast,safe and of environment protection.