Molten steel tank sliding plate oil cylinder anti-loosening device and control method

The invention discloses a molten steel tank sliding plate oil cylinder anti-loosening device and a control method, and relates to the technical field of sliding plate oil cylinders. The molten steel tank sliding plate oil cylinder anti-loosening device comprises a water gap sliding plate, a sliding plate oil cylinder, a locking oil cylinder and a mounting base, the mounting base is located on one side of the bottom of a molten steel tank, the sliding plate oil cylinder is embedded into the mounting base, the locking oil cylinder is arranged at the front end in the sliding plate oil cylinder in a sleeved mode, a piston sleeve is arranged in the locking oil cylinder, and a piston rod of the sliding plate oil cylinder penetrates through the piston sleeve and enters the water gap sliding plate. According to the device, the locking oil cylinder is arranged at the front end in the sliding plate oil cylinder in the sleeved mode, a spring system is arranged in a rodless cavity of the locking oil cylinder, oil is fed