FIELD: primary processing of miscellaneous waste first of oil such wastes which include plastic, paper, glass, metals, cardboard and other admixtures. SUBSTANCE: proposed method is performed with the aid of continuously operating mechanical separator which works on principle of dry mechanical separation; this plant includes several technological positions located in succession and interconnected by at least one transportation section; these positions are intended for performing such stages as separation of metals, air classification and removal of paper. Additional stages may be provided in between said stages and after them. Flow of material being processed is accelerated every time when it is transferred to transportation section which is last before respective technological operation; as a result, actual velocity of particles of material being processed at last transportation section immediately before arrival at metal separation position is lesser than their velocity immediately before arrival at air classification position. This last velocity is lesser than average velocity immediately before arrival at paper removal position. Waste processing plant is provided with at least one shredder for grinding wastes, first intermediate collecting bin used as first position for intermediate accumulating of material to which miscellaneous wastes from each shredder are directed. Intermediate accumulating bin is provided with unit for smooth loading of conveyer taking the material, at least one magnetic separator, at least one device for separation of nonmagnetic components from materials at specific gravity exceeding preset specific gravity, at least one device for separation of paper, second intermediate accumulating bin used as second intermediate accumulating position where such material is accumulated and where plastic fraction received from each separation device is accumulated and at least one sintering device for sintering of plastic fraction; provision is made for acceleration of material flow at each transfer to transportation section which is last before respective technological position; as a result. Average velocity of particles of flow components at last transportation section immediately before arrival of material at metal separation position is lesser than velocity immediately before arrival of material at air classification position and this last velocity is lesser in its turn than average velocity immediately before arrival of material at paper removal position. EFFECT: delivery of plastic material free from admixtures to sintering unit. 17 cl, 6 dwg
Authors
Dates
2002-09-27—Published
1998-12-22—Filed