Sand filtering equipment in wafer grinding production

The invention relates to sand filtering equipment in wafer grinding production, which comprises a sealed cabin, a sand filtering device, a sand filtering device and a sand filtering device, and the top of the sealed cabin is provided with a grinding sand input port; the sand filtering mechanism is arranged in the sealed cabin and located below the grinding sand input port, and the driving mechanism drives the sand filtering mechanism to rotate so as to efficiently filter the input grinding sand; the grinding sand recycling mechanism is arranged in the sealed cabin, located in the middle of the sand filtering mechanism and used for receiving the grinding sand filtered by the sand filtering mechanism; and the cleaning mechanism is arranged in the sealed cabin and is used for cleaning the sand filtering mechanism. According to the grinding sand recycling device, grinding sand can be recycled, meanwhile, solidification of the grinding sand is prevented, filtering impurities are discharged, and the filter screen c