Scrubber VS Trommel

Writer： admin Time：2020-08-20 16:32 Browse：℃

A scrubber is not a trommel and a trommel is not a scrubber. The two are quite different and quite inefficient when incorporated in the same mechanism. A rotating screen needs a relatively low RPM to allow the fines to pass through the screen. An effective scrubber needs a relatively high RPM to lift the material higher, turn the material over and to input energy into the scrubbing action between the larger rocks and the clay material. Comparatively, a scrubber will have at least twice the horse power as the same dimension and capacity trommel.

A scrubber is a high RPM ‘autogenous’ mill. A scrubber will rotate at 75% of the ‘critical RPM.’ The critical spped RPM is the RPM required for the material to cling to the wall and rotate with the drum without falling. A scrubber uses the large rocks to break up the finer material in the same way a ball mill uses steel balls to break up ore.

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