采用ANSYS建立铜钢复合冷却壁的传热和热应力模型,分析稳定挂渣及渣皮脱落后的温度和热应力分布。结果表明,炉气温度是影响壁体温度、渣皮厚度、热负荷和应力状态的主要因素。在稳定挂渣时,铜壁最高温度为124℃,热负荷81.1 kW/m2,变形...采用ANSYS建立铜钢复合冷却壁的传热和热应力模型,分析稳定挂渣及渣皮脱落后的温度和热应力分布。结果表明,炉气温度是影响壁体温度、渣皮厚度、热负荷和应力状态的主要因素。在稳定挂渣时,铜壁最高温度为124℃,热负荷81.1 kW/m2,变形量比铜质冷却壁有所减少。在渣皮脱落后,铜壁温度和应力快速上升,5 m in后趋向稳定。在冷却壁裸露的情况下,铜壁和钢板之间仍然保持牢固结合。展开更多
Through the numerical modeling of temperature field for Blast Furnace (BF) lining and stave coolers, it can tell designers how to design a cooler which the hot surface temperature is less than its critical temperature...Through the numerical modeling of temperature field for Blast Furnace (BF) lining and stave coolers, it can tell designers how to design a cooler which the hot surface temperature is less than its critical temperature under very high heat flux. Applying low heat re- sistance lining and staves cooler to BF is good for a layer of slag skull frozen on the hot surface of cooling stave. As long as the slag skull can stand, the furnace wall is stable and the heat loss of furnace does not increase. This is the basic principle for designing long campa- ignship BF.展开更多
文摘采用ANSYS建立铜钢复合冷却壁的传热和热应力模型,分析稳定挂渣及渣皮脱落后的温度和热应力分布。结果表明,炉气温度是影响壁体温度、渣皮厚度、热负荷和应力状态的主要因素。在稳定挂渣时,铜壁最高温度为124℃,热负荷81.1 kW/m2,变形量比铜质冷却壁有所减少。在渣皮脱落后,铜壁温度和应力快速上升,5 m in后趋向稳定。在冷却壁裸露的情况下,铜壁和钢板之间仍然保持牢固结合。
文摘Through the numerical modeling of temperature field for Blast Furnace (BF) lining and stave coolers, it can tell designers how to design a cooler which the hot surface temperature is less than its critical temperature under very high heat flux. Applying low heat re- sistance lining and staves cooler to BF is good for a layer of slag skull frozen on the hot surface of cooling stave. As long as the slag skull can stand, the furnace wall is stable and the heat loss of furnace does not increase. This is the basic principle for designing long campa- ignship BF.
