Grit Washing Classifier (GWC) seperates, washes&dewaters street sand, filter sand etc. from water.
The sand/water mix is pumped or fed into the separation tank where sand settles to the washing zone is mechanically washed.After washing the screw conveyor dewaters & conveys the sand, excess water during pumping flows out over a weir and is led out. The organic material is led out separately or through the same outlet.