Titanium dioxide three-washing device

The utility model belongs to the technical field of titanium dioxide production, and particularly relates to a titanium dioxide three-washing device. The three-washing device comprises a three-washing diaphragm filter press, the three-washing diaphragm filter press comprises an air inlet, a feed port, a discharge port, a water inlet and a water outlet, the air inlet is connected with a compressed air storage tank, the feed port is connected with a coating slurry storage tank, the discharge port is connected with a three-washing filter cake storage hopper, and the water inlet is connected with a water outlet. The water inlet is connected with a third-washing water supply tank, the water outlet is connected with a filtrate buffer tank and a washing liquid buffer tank, and the washing liquid buffer tank is connected with a second-washing water supply tank. According to the utility model, the water consumption in the titanium dioxide production process is saved under the condition that the product quality is not