Water sealing device of vacuum acid liquor circulation pickling tank

The utility model relates to a water sealing device of a vacuum acid liquor circulation pickling tank. The pickling tank comprises a pickling tank body and horizontal sliding rail frames arranged on the two outer side portions of the pickling tank body. The pickling tank is provided with a sealed water tank around the edge of a tank opening; positioning notches are evenly formed in the groove wallfaces of the two adjacent inner sides of the sealing water groove. A sliding frame is slidably connected to the horizontal sliding rail frame. The installation sliding frame is erected on the upper portion of the pickling tank, supporting sliding foot plates are arranged on the two sides of the installation sliding frame, supporting rolling wheels connected with the horizontal sliding rail framein a matched mode are arranged at the bottom ends of the supporting sliding foot plates, and horizontal displacement driving motors are fixed to the outer side wall faces of the supporting sliding foot plates. According to the