Heavy sand-water separator

The utility model provides a heavy type grit-water separator, which relates to the field of grit-water separation, and comprises a feed precipitation hopper, a spiral groove frame and a spiral shaft, the right end of the spiral shaft is connected with a driving device, the feed precipitation hopper is connected with a filter screen plate through a connecting rod, the upper surface of the filter screen plate is contacted with a pushing ball, and the pushing ball is connected with the spiral groove frame. And the pushing ball is connected with a vibration motor through a vibration plate, connecting blocks are welded to the front end and the rear end of the vibration plate, and the connecting blocks are connected with the feeding precipitation hopper through buffer spring columns. According to the sand-water separator, the problem that the separation effect of the sand-water separator is affected due to the fact that a rotating shaft in the sand-water separator in the prior art rotates, part of sand grains which