The screw salt washing machine is special equipment for mechanical salt production line. 

They can be used for the washing of raw salt and medium size crude salt. 

The machine is composed of three parts: transmission device, shell and spiral belt.

When it works, the salt is feed at the end and adds washing liquid, sprays washing liquid at the middle and upper parts. 

The material is washed during conveying, the suspended substance overflows is discharged by overflow weir in the end. 

The precipitation dirt is discharged regularly from the bottom valve. The equipment plays an important role in removing the sands from salt.