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Numerical simulation of temperature field and thermal stress field in the new type of ladle with the nanometer adiabatic material

机译:新型钢包纳米绝热材料温度场和热应力场的数值模拟

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摘要

With the development of metallurgical industry and the improvement of continuous casting technology, the processing properties of casting technology equipment are being paid more attention. Ladle is one of the most representatives of the furnace equipment; higher requirements of ladle are put forward in response to the call for national energy-saving and emission reduction. According to the requirements of actual operator and working condition, a lining structure of a new type of ladle with nanometer adiabatic material is put forward. Based on heat transfer theory and finite element technology, the three-dimensional finite element model of a new type of ladle is established. Temperature field and stress field of the new type of ladle with the nanometer adiabatic material in lining structure after baking are analyzed. The results indicate that the distributions of temperature and thermal stress level of working layer, permanent layer, and nanometer heat insulating layer are similar, and they are in the permissible stress and temperature range of each material for the new type of ladle. Especially heat preservation effect of nanometer adiabatic material is excellent. Furthermore, the maximum temperature of shell for the new type of ladle drops to 114°C than the traditional ladle, and the maximum stress of shell for the new type of ladle is lower than the traditional ladle, that is, 114 MPa. It can provide reliable theory for energy-saving and emission reduction of metallurgy industry, which also points out the right direction for the future development of the iron and steel industry.
机译:随着冶金工业的发展和连铸技术的提高,铸造技术设备的加工性能受到越来越多的关注。钢包是熔炉设备的最代表之一。为了响应国家节能减排的要求,提出了更高的钢包要求。根据实际操作人员的要求和工作条件,提出了一种新型的具有纳米绝热材料的钢包衬里结构。基于传热理论和有限元技术,建立了新型钢包的三维有限元模型。分析了新型绝热材料浇铸后的衬里结构新型纳米钢包的温度场和应力场。结果表明,工作层,永久层和纳米隔热层的温度和热应力水平分布相似,并且在新型钢包中每种材料的允许应力和温度范围内。纳米绝热材料的保温效果尤其优异。此外,新型钢包的壳体最高温度比传统钢包下降至114°C,新型钢包的壳体最大应力低于传统钢包,即114 MPa。它可以为冶金工业的节能减排提供可靠的理论依据,也为钢铁工业的未来发展指明了正确的方向。

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