Rotary scrubber (namely as drum ore scrubber, cylinder stone scrubber or rotary scrubbing machine) is a special washing equipment for cleaning large and difficult-to-wash materials. Rotary scrubber has three functions: scrubbing, cleaning and screening. The maximum feed size can reach 200 mm. It mainly carries out preliminary cleaning for raw ore. The equipment has a large processing capacity, which solves the cleaning of raw ore with high impurity content and mud, and creates favorable conditions for subsequent separation operations.