论文部分内容阅读
1 前言钢材冷轧前需经退火处理消除应力,提高延展性。天津带钢厂原有3座退火炉,均为台车手烧燃煤退火炉。1985年1号炉采用倾斜式往复炉排加煤,经过近一年的运行证实,炉温不均匀,煤耗高,不能满足冷轧钢材生产的工艺要求而停止使用。 3号炉、4号炉由上海黑色冶金设计院设计,1972年建造。炉底有效面积为12米~2,4个燃烧室布置在炉子的一侧,排烟口设在对面墙上,采用下排烟。该炉的主要用途是冷拉盘条的坯料和成品退火。
1 Foreword Steel needs to be annealed before stress relief to improve ductility. Tianjin Strip Steel original three annealing furnace, are biker burn coal annealing furnace. In 1985, No. 1 furnace was inclined coal reciprocating grate, after nearly a year of operation confirmed that the furnace temperature is not uniform, high coal consumption, can not meet the cold rolled steel production process requirements and stop using. No.3 furnace, No.4 furnace was designed by Shanghai Black Metallurgical Design Institute and built in 1972. The effective area of the bottom of the furnace is 12 m ~ 2, 4 combustion chambers are arranged on one side of the furnace, the exhaust port is arranged on the opposite wall, and the exhaust smoke is adopted. The main purpose of the furnace is to cold-draw wire rod blank and finish anneal.