连铸坯热送热装工艺的有限元模拟
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摘要
连铸坯热送热装工艺可以节约加热炉能耗,实现节能减排的目标,为钢厂带来经济效益。本文利用有限元软件模拟钢液自进入结晶器直至出加热炉全流程温度场。结合连铸全流程不同时间节点铸坯含有的热量,分析连铸过程热量损失。模拟冷装、温装及直装坯在加热炉加热至出炉温度时的热量与进加热炉进行对比,分析不同温度铸坯再加热过程需吸收的热量。
The finite element software was used to simulate the whole process temperature field of liquid steel from entering the mold to out of the heating furnace. Combining the heat energy of casting billet at different time in the whole process of continuous casting, the heat loss of the continuous casting process was analyzed. The heat of cold charging, hot charging and direct charging process before and after entering the heating furnace were simulated and compared. The heat of different temperature slab required to absorb in the heating furnace were analyzed.
The finite element software was used to simulate the whole process temperature field of liquid steel from entering the mold to out of the heating furnace. Combining the heat energy of casting billet at different time in the whole process of continuous casting, the heat loss of the continuous casting process was analyzed. The heat of cold charging, hot charging and direct charging process before and after entering the heating furnace were simulated and compared. The heat of different temperature slab required to absorb in the heating furnace were analyzed.
引文
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[2]朱正海,仇圣桃,廖鹏,等.热送热装过程大板坯传热数值模拟研究[J].炼钢,2009(5):43-47.
[3]陈小龙,余轶峰,董苑华,等.柳钢热送热装技术应用浅析[J].柳钢科技,2014(6):23-26.
[4]李永中.连铸坯热装热送技术[J].山西冶金,2007,30(3):10-12.
[5]蔡开科.连铸坯热装热送技术[C]//无缺陷铸坯及热送热装工艺技术研讨会论文汇编,昆明:中国金属学会连续铸钢分会,2004:11-22.
[6]邢跃.宝钢连铸坯热送热装技术的经济效益分析与评价[J].上海节能,1996(10):15-18.
[7]温治,向顺华,高仲龙,等.连铸坯热送热装热过程数学模型的开发应用[J].工业炉,1997(2):3-7.
[8]邹达基,邹宗树.关于连铸凝固传热数值模拟中钢液有效导热系数的探讨[J].连铸,2009(6):5-8.
[9]荆涛.凝固过程数值模拟[M].北京:电子工业出版社,2002.
[10]李霞.连铸坯凝固传热的数值模拟[D].沈阳:东北大学,2005.
[11]张炯明,王立峰,王新华,等.板坯连铸结晶器传热系数[J].金属学报,2003,39(12):1281-1284.
[12]王卫华,王文军,刘洋,等.250~320 mm连铸板坯堆垛缓冷过程仿真计算[J].特殊钢,2013,34(1):13-15.
[13]钟婧.低合金高强度钢连铸板坯热送过程中温度控制的模拟研究[D].重庆:重庆大学,2014.
[14]甄圣明.0Cr13不锈钢板坯连铸温度场及应力场的数值模拟[D].包头:内蒙古科技大学,2008.