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Physical simulation method of flow field of continuous casting crystallizer considering vibration behaviors

A technology for continuous casting mold and physical simulation, which is applied in the field of physical simulation of continuous casting mold flow field considering vibration behavior, can solve problems such as poor effect, and achieve the effect of improving the quality of casting billet and researching accurately.

Inactive Publication Date: 2015-03-18
CHONGQING UNIV
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Problems solved by technology

Since the fluctuation of the mold liquid level itself is equivalent to the amplitude of the mold vibration (3-5mm), the fluctuation of the mold flow field itself and the fluctuation caused by the mold vibration may be superimposed, resulting in the flow field optimized by physical simulation in actual production. App doesn't perform well

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  • Physical simulation method of flow field of continuous casting crystallizer considering vibration behaviors

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Embodiment Construction

[0014] The physical simulation of the crystallizer flow field is based on the similarity principle. According to the focus of the research, select the Re standard number, the Fr standard number and the We standard number or their combination to determine the appropriate similarity ratio; then establish the hydraulic model according to the actual model parameters , and use monitoring means to analyze the characteristics of the flow field in the crystallizer under different parameters, and optimize the flow field of the crystallizer.

[0015] The current general physical simulation experiment device is a water circulation system, including tundish, submerged nozzle, crystallizer and water pump. Water circulates sequentially in the tundish-submerged nozzle-mold. This process is consistent with the actual continuous casting process. Then the water pump draws a certain flow of water from the outlet of the mold and circulates it into the tundish.

[0016] The commonly used crystalli...

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Abstract

The invention discloses a physical simulation method of a flow field of a continuous casting crystallizer considering vibration behaviors. A vibrating table can be utilized to drive the continuous casting crystallizer to vibrate. During simulation, the continuous casting crystallizer is vibrated up and down according to set amplitude and frequency after a liquid level of the continuous casting crystallizer keeps a set time; fluctuation data information can be collected on the liquid level of the continuous casting crystallizer after a set time once again; finally experimental data are analyzed; and nozzle structural parameters, the nozzle immersion depth or and argon blowing quantity are adjusted to optimize the flow state of the continuous casting crystallizer to enable the liquid level of the continuous casting crystallizer to be fluctuated within + / - 5 mm on the premise of no slag entrapment to obtain nozzle structural parameters, the nozzle immersion depth and argon blowing quantity under an optimization objective. According to the physical simulation method of the flow field of the continuous casting crystallizer considering vibration behaviors, the vibration behaviors of the continuous casting crystallizer are considered, physical descriptions of the flow state and the liquid level fluctuation state inside the continuous casting crystallizer are real, and the flow state of the flow field and nozzle structure optimization of the integral continuous casting crystallizer are accurate.

Description

technical field [0001] The invention relates to a physical simulation method for the flow field of a continuous casting crystallizer. The method is mainly used in the field of continuous casting of iron and steel materials and other metal materials in the metallurgical industry to study the metal flow state and liquid level fluctuation behavior in the crystallizer during the continuous casting process. , suitable for physical simulation research of various types of continuous casting molds. Background technique [0002] In the continuous casting process, the molten steel is poured from the submerged nozzle to the mold, and its behavior is very complicated. Under the action of mold cooling and vibration, the behavior of molten steel includes flow, heat transfer, solidification and other phenomena. Among them, the flow behavior of molten steel is the basis. Reasonable flow behavior of molten steel in the mold is an important guarantee for high-quality casting slabs. Unreasona...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/00B22D11/16
Inventor 陈登福谢鑫龙木军张蕾蕾董志华申嘉龙
Owner CHONGQING UNIV
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