Secondary water recycling water-saving device for silicon rectifying equipment

A secondary water recycling water-saving device for silicon rectifying equipment comprises a water-saving tank. A first control valve, a water-saving pump, a check valve and a second control valve are successively mounted on a water outlet pipeline of the water-saving tank, a third control valve is mounted on a water inlet pipeline of the water-saving tank, a water level gauge is mounted in the water-saving tank and is electrically communicated with the water-saving pump, the water-saving tank is further communicated with an overflow tube, and a secondary water filter is mounted between a fourth control valve and a fifth control valve of a secondary water inlet of a production water network. The secondary water recycling water-saving device resolves the problem that original secondary water of the rectifying equipment directly flows into a sewer pipe network, water resources are wasted greatly, the quality of the secondary water is poor, and main water cooling effect of a total device is affected. A total pro