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Continuous-casting crystallizer simulation method by taking shell thickness and flowing quality balance into consideration and device thereof

A continuous casting crystallizer and mass balance technology, which is applied in the direction of instruments, calculations, electrical digital data processing, etc., can solve the problems that cannot reflect the real situation of continuous casting, and achieve the effect of improving the quality of casting slabs

Inactive Publication Date: 2012-11-28
CHONGQING UNIV
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  • Application Information

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Problems solved by technology

If the research on billet shell thickness and flow mass balance is not considered, it should be said that the results basically cannot reflect the real situation of continuous casting

Method used

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  • Continuous-casting crystallizer simulation method by taking shell thickness and flowing quality balance into consideration and device thereof
  • Continuous-casting crystallizer simulation method by taking shell thickness and flowing quality balance into consideration and device thereof
  • Continuous-casting crystallizer simulation method by taking shell thickness and flowing quality balance into consideration and device thereof

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Embodiment Construction

[0027] The present invention will be further described below.

[0028]In order to truly reflect the changing law of the mold flow field in the continuous casting process and to make the research results of nozzle structure optimization more accurate, in the process of physical simulation research, the solidification of molten steel and the occurrence of the total amount of molten steel after it is transformed into a solidified shell should be considered. Effect of changes on crystallizer flow regime and nozzle optimization results. Before and after considering the solidification shell and flow mass balance, the flow state in the crystallizer changes greatly. On the one hand, it is the change of the flow space: considering the thickness of the solidification shell, the flow area in the crystallizer will shrink to a certain extent, and the total flow space will be reduced. Moreover, due to the existence of the solidification shell, the upper backflow stream generated by the outl...

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Abstract

The invention relates to a continuous-casting crystallizer simulation method by taking shell thickness and flowing quality balance into consideration and a device thereof; the simulation steps are as follows: (1) a simulation model of a crystallizer is built, and the thickness of a casting blank shell at different position in the simulation model is considered; (2) the simulation model is operated, molten steel running is simulated in the simulation model, the molten steel quantity is gradually reduced in the flowing process, and the reduced amount corresponds to the quantity of practical molten steel for forming the casting blank shell. In the invention, the blank shell and the flowing quality in the crystallizer are balanced, the physical description of the flowing condition in the crystallizer is real, the optimization of the flow field and the water gap structural parameters in the crystallizer are more accurate, the change rule of the flowing condition in the crystallizer can be accurately obtained, so as to reflect the continuous casting practical condition really and lead the flow field and the water gap structural parameters in the crystallizer to be in accordance to the practical condition, thereby having great significance for the optimization of the continuous-casting process parameters and water gap parameters and improving the casting blank quality.

Description

technical field [0001] The invention relates to a continuous casting crystallizer simulation method considering solidified shell thickness and flow mass balance, and a set of crystallizer simulation device is designed according to the method. It is mainly used in the physical simulation research of the flow state of the molten steel flow field in the continuous casting mold in the metallurgical field and the optimization of the nozzle of the mold. It is suitable for slab continuous casting, square billet continuous casting, round billet continuous casting and other types of continuous casting, especially thin slab continuous casting and other fields. Background technique [0002] The continuous casting mold is a key component to control fluid flow and solidification heat transfer, and it is also an important link to control the quality of the slab. A series of complex physical and chemical phenomena occur in the continuous casting mold, which can be summarized as transmissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/04G06F17/50
Inventor 陈登福张大江靳星张立峰韩志伟王水根张献光宋立伟张夫恩王翠娜冯科谢鑫
Owner CHONGQING UNIV
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