FIELD: ferrous metallurgy and mining industry, in particular, separation of difficult-to-screen ore. SUBSTANCE: complex equipment has fine crusher, multitier screen and protection screen. Size of sieve meshes of upper tier is 2.5-3.0 of maximum size of fine crusher slit. Meshes of second sieve from the top have size equal to 2.8-3.2 of size of protection screen sieve mesh. Sieve mesh sizes of subsequent tiers are selected in accordance with expression recited in Specification. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 1 dwg
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