Butare intended for washing, mechanical disintegration and classification in an aqueous an alluvial sands or ores for subsequent processing on concentrating apparatus.

The operating principle is the Butare disintegration sand, ores and grains wash the valuable minerals from the clay gouges. Disintegration in Butare is done by loosening the raw material in the water with your fingers or rotating plates, fixed in a certain order on the inner surface of the hollow part of Butare. The presence in the gravel material enhances the effect of disintegration due to impact and abrasive effects of sliding and falling stones.

The processed material through the intermediate receiving hopper, is fed into the loading window rotating scrubber-butare. At the same time in Butare supplied with water, which can act like the source material, or separately through pipe-sprinkler mounted within Butare.

In the deaf part of the scrubber-butare there is a process of disintegration and washing the raw material. Next, the washed material is supplied to the screening in the trommel (in the sowing part of the Butare). Material size class smaller than the perforation under the influence of centrifugal forces is screened through the perforated wall of the hopper, the material is a perforation size class size enters the discharge tray.