Optimal Design of Breakout Prediction System of Slab Continuous Casting

2012 ◽  
Vol 457-458 ◽  
pp. 138-141
Author(s):  
Yi Wang ◽  
Xin Jian Ma

This paper describes the new development of the breakout prediction technique based a heat transfer model. The model aims to minimize the variation in surface temperature. The breakout prediction system of slab continuous casting has been analyzed with consideration of the principles, model and thermocouples installation. The system has been designed and implemented in the steel plants.

2020 ◽  
Vol 1575 ◽  
pp. 012208
Author(s):  
Zhaofeng Wang ◽  
Yichi Zhang ◽  
Yuting Jiang ◽  
Jiahui Zhang ◽  
Shuai Zhang

2005 ◽  
Vol 45 (9) ◽  
pp. 1291-1296 ◽  
Author(s):  
Hongming WANG ◽  
Guirong LI ◽  
Yucheng LEI ◽  
Yutao ZHAO ◽  
Qixun DAI ◽  
...  

2021 ◽  
Author(s):  
Vassilis Z. Antonopoulos ◽  
Soultana K. Gianniou

Abstract The knowledge of micrometeorological conditions on water surface of impoundments is crucial for the better modeling of the temperature and water quality parameters distribution in the water body and against the climatic changes. Water temperature distribution is an important factor that affects most physical, chemical and biological processes and reactions occurring in lakes. In this work, different processes of water surface temperature of lake’s estimation based on the energy balance method are considered. The daily meteorological data and the simulation results of energy balance components from an integrated heat transfer model for two complete years as well as the lake’s characteristics for Vegoritis lake in northern Greece were used is this analysis.The simulation results of energy balance components from a heat transfer model are considered as the reference and more accurate procedure to estimate water surface temperature. These results are used to compare the other processes. The examined processes include a) models of heat storage changes in relationship to net radiation (Qt(Rn) values, b) net radiation estimation with different approaches, as the process of Slob’s equation with adjusted coefficients to lake data, and c) ANNs models with different architecture and input variables. The results show that the model of heat balance describes the water surface temperature with high accuracy (r2=0.916, RMSE=2.422oC). The ANN(5,6,1) model in which Tsw(i-1) is incorporated in the input variables was considered the better of all other ANN structures (r2=0.995, RMSE=0.490oC). The use of different approaches for simulating net radiation (Rn) and Qt(Rn) in the equation of water surface temperature gives results with lower accuracy.


2014 ◽  
Vol 926-930 ◽  
pp. 802-805
Author(s):  
Jun Li Jia ◽  
Jin Hong Zhang ◽  
Guo Zhen Wang

Efficient secondary cooling water control level slab continuous casting process and quality are closely related. Casting solidification heat transfer model is the basis of process control and optimization, heat transfer model based on determining the secondary cooling system is the most widely used method for casting production process can be simulated. However, when considering the many factors affecting the production and input conditions change significantly, real-time and strain of this method is not guaranteed. Therefore, the artificial intelligence optimization algorithms such as genetic algorithms, neural networks, fuzzy controllers, introducing continuous casting secondary cooling water distribution and dynamics of optimal control methods, the rational allocation of caster secondary cooling water and dynamic control is important.


2011 ◽  
Vol 80-81 ◽  
pp. 81-85
Author(s):  
Jiao Cheng Ma ◽  
Hui Zhao Sun ◽  
Xue Bin Wang ◽  
Xia Lv

In order to more accurate simulation the solidification of billet continuous casting. The measured shell thickness and surface temperature have been used to revise the heat transfer model. The calculated results of the model are in excellent agreement with the experimental ones based on an actual casting machine. The revised model can excellent to simulate the billet solidification process. So it provides the possibility for better simulation the dynamic solidification process and optimizing of the secondary cooling water.


2014 ◽  
Vol 214 (1) ◽  
pp. 44-49 ◽  
Author(s):  
Zhaofeng Wang ◽  
Man Yao ◽  
Xudong Wang ◽  
Xiaobing Zhang ◽  
Longsheng Yang ◽  
...  

2012 ◽  
Vol 463-464 ◽  
pp. 205-209
Author(s):  
Yi Wang ◽  
Xin Jian Ma

By measuring the surface temperature of the mould, the condition of solidified shell can be monitored by thermocouples fixed to the mould. Breakouts can be predicted and effectively avoided by monitoring the dynamic characteristics of thermocouples temperature in the casting process. A thermomechanical model was developed to analyzed the heat transfer in the mould.The breakout prediction system of continuous casting has been analyzed with consideration of the principles, model and thermocouples installation. The system has been designed and implemented in the steel plants.


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