Crystallizer physical simulation method and device based on molten steel static pressure and solidification phenomena

Abstract

The invention discloses a crystallizer physical simulation method and device based on molten steel static pressure and solidification phenomena. The method comprises the steps that S1, a crystallizer hydraulic simulation model is built, the thickness and the static pressure of a casting blank solidification blank shell are determined, and distribution of small drainage holes at different heights of the inner wall of a crystallizer is designed; and S2, the crystallizer hydraulic simulation model operates, and liquid is injected; drainage is conducted through the small drainage holes to simulate molten steel converted into the casting blank solidification blank shell, and states of all positions of the crystallizer hydraulic simulation model are detected to simulate or correct the crystallizer flow field and the technological parameters during practical continuous casting production. The crystallizer physical simulation device comprises an outer shell simulating the crystallizer in shape, an inner shell is arranged in the outer shell, and the space between the inner shell and the outer shell is an interlayer; and the multiple rows of the small drainage holes are formed in the inner shell from top to bottom, and drainage pipes are arranged on the lower portion of the interlayer. According to the crystallizer physical simulation method and device based on the molten steel static pressure and solidification phenomenon, the molten steel solidification phenomenon and the molten steel static pressure are comprehensively considered, and the crystallizer physical simulation method is more approximate to a practical continuous casting production condition.

Description

technical field [0001] The invention belongs to the technical field of metallurgical process simulation, and in particular relates to a crystallizer physical simulation method and device based on molten steel static pressure and solidification phenomenon. Background technique [0002] The mold is a key component in the continuous casting machine, and its performance plays a very important role in the production capacity of the continuous casting machine and the quality of the slab, so it is called the "heart" of the continuous casting machine. The flow, solidification, heat transfer, and stress state of the slab shell inside the continuous casting mold are very complicated, and it is a complex system coupled with thermal state and mechanical state. In the actual continuous casting production, the high-temperature molten steel injected into the mold has relatively large kinetic energy, so the flow of molten steel in the mold is very important to the quality of the slab. The ...

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Problems solved by technology

[0006] Aiming at the above-mentioned deficiencies existing in the prior art, the present invention provides a crystallizer physical simulation method and device based on the static pressure of molten steel and solidification phenomenon, aiming at solving the problem of not considering the solidification phenomenon of molten steel or ignoring the static state of molten steel in the existing simulation technology. The technical problems caused by the pressure and solidification of molten steel are quite different from the actual continuous casting production conditions

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