FIELD: technological processes.
SUBSTANCE: in a method of treating composite materials with aluminium and plastics, composite materials are mixed in the working area of a preprocessing device. Preprocessing device comprises a reservoir in which there is a screw and a spiral inserted into the reservoir. According to the invention, the reservoir is sealed and has a vent on its upper side.
EFFECT: preprocessing device, an apparatus with a preprocessing device, a cyclone and a method for treating a mixture of materials are disclosed.
35 cl, 5 dwg
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