FIELD: concentration of minerals; repeated processing of gold-bearing raw materials from placer deposits. SUBSTANCE: proposed sluice includes chute with parallel sides and smooth bottom. Bottom of chute is covered with rugs on which templates made from round material are laid. Welded to round material are stops connected by coupling plates over entire length. Coupling plates are not in contact with rugs and round material. Templates are located in center and tail sections of sluice in such way that they form slots between them which are parallel to sides of sluice. EFFECT: increased productivity; simplified construction. 4 dwg
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