Pneumatic control mechanism for sliding plate of tundish

Abstract

The invention belongs to the technical field of smelting equipment, and relates to a pneumatic control mechanism for a sliding plate of a tundish. The pneumatic control mechanism comprises an air cylinder and a control system, a connecting part is arranged at the output end of a piston rod of the air cylinder, and the connecting part is connected with the sliding plate used for controlling the molten steel amount of the tundish; a plurality of position sensors are arranged on the air cylinder, and the position sensors are used for obtaining position information and time information when the piston rod of the air cylinder passes through; the position sensors are connected with the control system and transmit signals to the control system, and the control system controls the air cylinder to operate according to the signals of the position sensors. A traditional oil cylinder is changed into the air cylinder, and the air cylinder has the advantages of being light in weight and sensitive in response; the multiple position sensors are arranged to obtain the position and speed of the piston rod, and an electromagnetic flow valve is used for controlling the air inlet and outlet amount, so that the speed and displacement of the piston rod are accurately controlled, and the situation that the sliding plate does not move in place is prevented.

Description

technical field [0001] The invention belongs to the technical field of smelting equipment, and relates to a pneumatic control mechanism of a tundish slide plate. Background technique [0002] The sliding nozzle mechanism of the tundish usually controls the amount of molten steel by controlling the displacement of the slide plate, while the sizing type tundish uses the size of the opening in the middle of the slide plate to control the amount of molten steel. For example, the Chinese patent with the publication number CN200995275Y discloses a tundish sliding nozzle mechanism, including an upper nozzle, a lower nozzle, and a submerged nozzle. It is installed between the upper nozzle and the lower nozzle in turn, and the upper nozzle and the lower nozzle are divided into two cavities; the upper slider is installed in the groove of the bracket through the supporting plate, and the middle slider is connected with the guide plate through the middle slider frame, guiding The plate...

AI Technical Summary

Problems solved by technology

[0003] However, the hydraulic cylinder used in actual production is heavy, and it is easy to get stuck during the installation process. At the same time, there is no effective monitoring method for the movement of the skateboard when the cylinder is pushing the skateboard. Inaccurate control of the amount of molten steel may result in accidents such as abnormal movement of the opening of the slide plate and stop pouring, seriously affecting production efficiency

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