炼钢-连铸过程300t钢包热状态测试研究

Research on thermal status of 300 t ladle in the process of steel-making and continues casting

对宝山钢铁集团公司炼钢厂炼钢-精炼-连铸过程钢包的热状态进行了测试,研究了钢包在各个周转阶段的包衬温度分布及其变化规律。测试结果表明,在钢包的第1和第2个周转过程包衬吸热和蓄热明显,该阶段应考虑钢水温降的热补偿。在钢包的第3和第4个周转过程中,包衬各点的温度变化较平缓,表明从第4个周转开始,包衬的温度变化处于一种动态平衡的循环过程。

The thermal status of the ladle in the process of steel-making-refining-continues casting was tested and the distribution of the lining temperature and the law of the temperature variation in each and every turn-over phase of the ladle studied. The practical results show that the heat was obviously absorbed and stored in ladle lining in the first and second turn-over phases of the ladle and therefore the thermal compensation should be considered in those periods. However in the third and fourth phases of the ladle, the temperature in every points of the ladle lining changed smoothly. It shows that from the beginning of the 4^th phase the change of the ladle lining was held in a recycling process of dynamic equilibrium.