Control method, device and storage medium for steel remaining in ladle

Abstract

The invention provides a method, a device and a storage medium for controlling the amount of steel remaining in a ladle. The method includes: detecting and obtaining the remaining height of molten steel in the ladle during pouring of the ladle; determine the reference opening of the sliding nozzle of the ladle; determine the target opening of the sliding nozzle corresponding to the remaining height according to the remaining height, the reference opening, and the preset relationship, wherein the preset relationship is that the opening of the sliding nozzle accounts for The ratio of the reference opening and the corresponding relationship between the height of molten steel; adjust the opening of the sliding nozzle to the target opening. In the above scheme, the size of the molten steel vortex is controlled by adjusting the opening of the sliding nozzle, so as to control the amount of steel slag involved in the vortex, thereby reducing the amount of steel remaining in the ladle.

Description

technical field [0001] The invention relates to the technical field of steelmaking, in particular to a method, a device and a storage medium for controlling the amount of steel remaining in a ladle. Background technique [0002] During ladle pouring, with the progress of ladle pouring, the liquid level of molten steel in the ladle and the static pressure of molten steel gradually decrease. Under the condition of the same opening of the ladle sliding nozzle, the amount of steel passing through the ladle will gradually decrease. In the prior art, in order to ensure that the liquid level of the tundish remains unchanged, with the extension of the ladle pouring time, the opening of the sliding nozzle of the ladle will gradually increase. The formation of the molten steel vortex increases the critical height of the vortex, which leads to the advance of the slag under the ladle. [0003] Due to the strong oxidizing property of steel slag, it is harmful to the cleanliness of molte...

AI Technical Summary

Problems solved by technology

In the prior art, in order to ensure that the liquid level of the tundish remains unchanged, the opening of the sliding nozzle of the ladle will gradually increase with the prolongation of the pouring time of the ladle. The vortex formation of the molten steel increases the critical height of the vortex, leading to the advance of the ladle slag

[0003] Due to the strong oxidation of steel slag, it is harmful to the cleanliness of molten steel. In order to ensure the cleanliness of molten steel, the slag is generally reduced as much as possible in the prior art, which will cause an increase in the amount of remaining steel in the ladle, thereby increasing the cost of steelmaking.

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