热送热装工艺的数值模拟

doi:10.13228/j.boyuan.issn1005-4006.20200140

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Abstract In order to study the temperature change and heat gain and loss in the process of heat transfer and heat charging, and optimize the on-site production system, based on the heat transfer and heat charging process of a steel plant, a two-dimensional heat transfer model of Chamfering slab cooling and solidification, roller transportation and in furnace heating is established by using finite element method, and the correctness of the model is verified by field temperature measurement.The results show that the quasi ellipse temperature distribution with the lowest corner temperature, the second narrow surface temperature and the highest core temperature will be formed during the hot transfer process; during the furnace heating process, the low temperature region will gradually move from the corner to the center, and gradually form the quasi ellipse with the highest corner temperature and the lowest core temperature Shape distribution. During furnace heating, the maximum heat absorption of slab in the first heating stage accounts for about 52.01% of the total heat absorption, followed by the second heating section accounting for 35.26%. The heat absorption capacity of preheating section and soaking section is small. Through the numerical simulation of hot delivery and hot charging process, it is found that there is a problem of too long casting time in the furnace. Under the existing process, the billet can be discharged from the furnace after entering the soaking section for 368 s. By adjusting the production rhythm or reducing the furnace temperature, the output can be increased or the energy consumption can be reduced.

Key words： hot transfer and hot charging continuous casting billet numerical simulation finite element method temperature field

Received: 12 November 2020 Published: 23 February 2021

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	Articles by authors
	ZHANG Kai-fa
	WANG Ming-lin
	ZHANG Hui
	YANG Bao
	WANG Xue-bing
	LIU Bin

Cite this article:

ZHANG Kai-fa,WANG Ming-lin,ZHANG Hui等. Numerical simulation of heat transfer and heat charging process[J]. CONTINUOUS CASTING, 2021, 40(1): 26-35.

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http://www.chinamet.cn/Jweb_lz/EN/10.13228/j.boyuan.issn1005-4006.20200140 OR http://www.chinamet.cn/Jweb_lz/EN/Y2021/V40/I1/26

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