Device for preventing acid mist from overflowing

The invention relates to the field of equipment for cleaning or acid pickling metal materials, in particular to a device for preventing acid mist from overflowing. The device for preventing the acid mist from overflowing comprises an acid tank (1), and the acid tank (1) is filled with an acid liquid. The device is characterized by further comprising tank covers (2), tank cover driving mechanisms (3), air knives (4), a high pressure air blower (5), a compressed air pipeline (6), a side wall air suction duct (7) and an acid mist treatment apparatus (8). The tank covers (2) cover an opening of the acid tank (1), the tank cover driving mechanisms (3) are disposed on the side wall of one side of the acid tank (1), and an air blowing port of the high pressure air blower (5) is connected to air inlets of the air knives (4) through the compressed air pipeline (6); an air inlet (11) of the side wall air suction duct (7) is connected to a side air suction port (11), and the other end of the sidewall air suction duct (7