混铁炉热与结构的耦合应力场分析  

Therm-structure-coupled Stress Field Analysis on Mixer

作　　者：罗会信[1] 秦生财[2] 黄坤平[2] 邵珊铭[2] 罗辉[2] 林进江[2] 

机构地区：[1]武汉科技大学,湖北武汉430081 [2]武汉钢铁有限责任公司,湖北武汉430080

出　　处：《冶金设备》2004年第1期16-19,共4页Metallurgical Equipment

摘　　要：运用有限元技术对混铁炉进行了热与结构耦合应力场分析研究。研究表明 ,炉壳结构的应力场主要是由炉体的温度场引起的 ,混铁炉内装载的铁水量对其炉壳应力场的影响很小 ,可以忽略。在混铁炉炉壳应力场中 ,炉身与炉底法兰连接处应力最大 ,且在接近上下垂直象限位的 45°范围内应力场明显高于水平象限位附近区域。研究还表明 ,砌炉时耐火砖间的预留间隙对炉体应力场影响很大 ,为了保证安全生产 ,在炉役检修重砌耐火炉衬时 ,一定要严格按相关技术要求执行 ,预留足够的间隙。Analyzes the therm-structure-coupled stress field on a mixer by means of FEA. The result shows that the stress field of the shell is mainly caused by the high temperature, while the effect of the mass of the hot metal in the mixer on the stress field is little and can be neglected. The stress in the connection between the mixer-body and the bottom-flange is the max, and the stress near the 45° area is higher than near the horizontal area. This paper also indicates that the space left between the fire-bricks affects the stress of the mixer greatly. So in order to produce safely, relative regulations must be carried out strictly to ensure enough space when rebuilding the mixer-lining.

关 键 词：混铁炉 应力场 温度场 有限元 机械强度 

分 类 号：TF748[冶金工程—钢铁冶金]