The steel shot is polluted due to repeated use, and the steel shot will be mixed with impurities, affecting the continued use. Self-cleaning of steel shot is required.

1, Solid impurities are self-cleaning through the air， The steel shot in the recovery cycle can be recycled through the automatic sand suction separator, which can    remove most of the large impurities and more than one-third of the dust, in the   process of entering the sand storage hopper through the abrasive screen machine  is removed solid impurities.

2, the soluble salt in the steel shot can be removed by regular water cleaning    method, and can be used in rotation between different uses of steel shot in the   recycling. If you want to recycle steel shot, we need to clean it at this time. Only  in this way can we make better use of steel shot.