Preservative treatment device in storage tank

The utility model relates to the technical field of chemical equipment, in particular to an anti-corrosion treatment device in a storage tank, which comprises an equipment base, a tank body arranged at the top of the equipment base, a machine body fixedly connected with one side of the tank body at the top of the equipment base, a positioning sleeve fixedly connected with the bottom of the machine body, and a lifting rod movably connected with an inner cavity of the positioning sleeve. The bottom end of the lifting rod is fixedly connected with a pressure bin, the bottom of the pressure bin is fixedly connected with a brushing device, the bottom of the pressure bin is fixedly connected with a recycling device, one side of the machine body is movably connected with a movable frame, one side of the movable frame is fixedly connected with an air cylinder, one end of the air cylinder is fixedly connected with a plunger, and the interior of the machine body is fixedly connected with a servo motor. According to the