Auto tapping control method and auto tapping control system of converter

Abstract

The application discloses an auto tapping control method and an auto tapping control system of a converter. The method includes the steps of: 1) when a tapping signal is received, controlling a ladle trolley which carries a ladle to move to an initial receiving position, and controlling the converter to be rocked to an initial tapping position, so that molten steel in the converter rushes out from a water seal of a tapping hole, and controlling the converter to remain at the initial tapping position for a corresponding tapping time so as to receive the molten steel by the ladle; 2) according to preset converter rocking angles T in every time, controlling the converter to rock from the initial tapping position to a tapping finish position, and after every time of the converter rocking operation, enabling the converter to remain for a corresponding tapping time; 3) controlling the ladle trolley to move to ensure that the ladle can receive the molten steel in the whole converter rocking process; and 4) when the converter is rocked to the tapping finish position, controlling the converter to remain for a corresponding tapping time, closing a slag baffle, and performing reverse converter rocking until the converter returns to the initial position. The method can achieve automatic tapping, improves tapping efficiency, can avoid a problem that slag flows out with the molten steel, and improves tapping quality.

Description

technical field [0001] The present application relates to the technical field of converter iron and steel smelting, in particular to a converter automatic tapping control method and system. Background technique [0002] Converter steelmaking is the most important steelmaking method in the world today, and steel production accounts for more than 65% of the world's total steel production. As the market demand for high-quality steel increases, such as automobile plates, high-grade ship plates, electrical steel, stainless steel, etc., the requirements for the cleanliness of molten steel for converter steelmaking are also getting higher and higher, so the content of impurity elements in molten steel should be as low as possible. At the end of converter steelmaking, during the process of pouring molten steel from the converter into the ladle, slag will also flow into the ladle along with the molten steel (that is, slag from converter tapping), affecting the cleanliness of molten s...

AI Technical Summary

Problems solved by technology

However, due to the harsh environment of the converter steelmaking site, which affects people's vision and judgment ability, the judgment error is relatively large, and the control accuracy of the manual shaking furnace is difficult to guarantee, and the phenomenon of dirty steel or slag from the ladle often occurs

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