Rapid precipitation equipment

The utility model relates to equipment for preventing blockage and rapidly precipitating impurities in water in water conservancy construction, in particular to rapid precipitation equipment which comprises a precipitation box, a sliding hole is formed in the upper surface of the precipitation box, the inner wall of the sliding hole is in sliding connection with the outer surface of a water blocking barrel, and a mixing assembly is arranged on the upper surface of the water blocking barrel. Two lifting frames are fixedly connected to the left side and the right side of the upper surface of the settling tank respectively, a servo motor a drives a scraping paddle to rotate to quickly mix a flocculating agent and water, fine particles contained in the water are flocculated, the scraping paddle conveys flocculated groups formed after flocculation to the bottom of a filter cartridge, and the filter cartridge is used for filtering the flocculated groups; meanwhile, floccules adhered to the surface of the filter car