洗石机又叫洗砂机（或洗沙机），用于建筑工地、砂石厂、预制厂及水电工地大量用砂石的脱泥、筛选作业，也可用于矿石选别作业的机器。洗石机可大体分为螺旋洗石机,滚筒洗石机,水轮洗石机，振动洗石机，挖斗式洗石机,圆筒洗石机。洗石机是针对挖沙、采砂出来的沙石进行清洗，主要使用水进行清洗。在河底或者岩层经过开采上来的沙石还有比较的杂质，需要用水进行冲洗将沙石中的泥土和沙石分离，达到提纯的目的。合体输送到洗石机的舱体中，然后根据舱体的技术设置，进行翻滚、震动等运动，并使用高压水枪进行喷水冲洗，被冲洗的泥土或通过水孔进行排除，并且将沙石进行烘干。
　　主要用于砂类产品的去除杂质（如粉尘）的机器

　　A stone washing machine,also known as a sand washing machine(or sand washing machine),is used for the desilting and screening of large amounts of sand and gravel used in construction sites,sand and gravel factories,prefabrication plants,and water and electricity construction sites.It can also be used as a machine for ore sorting operations.Stone washing machines can be roughly divided into spiral stone washing machines,drum stone washing machines,water wheel stone washing machines,vibration stone washing machines,bucket type stone washing machines,and cylindrical stone washing machines.The stone washing machine is designed to clean the sand and gravel obtained from sand excavation and mining,mainly using water for cleaning.The sand and gravel extracted from the riverbed or rock layers still have some impurities,which need to be washed with water to separate the soil and sand in the sand and gravel,in order to achieve purification.The mixture is transported to the chamber of the stone washing machine,and then according to the technical settings of the chamber,it undergoes rolling,vibration,and other movements.High pressure water guns are used for water spraying and flushing,and the washed soil is discharged through water holes,and the sand and stones are dried.
　　A machine mainly used for removing impurities(such as dust)from sand products