SX20-3 Sand Gold Washing Unit is based on SX20 and SX20-1 and SX20-2 to further improve its structure.
　　After many years of industrial tests, the SX20 sand-gold washing unit has achieved good technical and economic indicators.
　　The birth of SX20 gold placer washing unit fills a gap in cleaning equipment and technological equipment for open-pit mining of placer gold in China, and opens up a new technological way for gold placer beneficiation.
　　Compared with the existing chute, the recovery rate of the unit is 14.65% higher. Compared with the jig, the unit has simple structure, stable and reliable operation, high enrichment ratio, less water consumption and easy maintenance and operation.
　　Compared with the gold dredger, the unit has the advantages of less investment, less labor intensity, wide recovery granularity and easy relocation.
　　The centrifugal disc separator can be used on gold dredgers. The water supply of the whole unit is 50m per hour to supply water guns. The central water pipe and the centrifugal unit are used for washing concentrate. The water supply of water guns accounts for 75%, i.e. 37.5m per hour. The water supply of the central backwater pipe is 25%, i.e. the working pressure of 12.5m per hour is 1.5-2KG/cm, and it is used for washing every centrifuge every 20 minutes or so.