FIELD: mineral dressing. SUBSTANCE: invention relates to dressing minerals, for example, crushed materials in mining, metallurgical, and other areas. Trommel includes drum mounted free to rotate, which is confined by two end flanges rigidly joined by longitudinal links, between which, knife-edges are disposed and screw spiral made of elastic material. Screw spiral and plots of clothing are fastened to knife-edges, and knife-edges are disposed at angle 5- 85 C to end flanges. EFFECT: improved design. 3 dwg
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