SYSTEM FOR IMPROVING PARTICLE SHAPE OF AGGREGATE AND SORTING FOREIGN MATERIALS INCLUDED IN THE AGGREGATE

摘要

PURPOSE: A system for improving a particle shape of an aggregate and sorting foreign material included in the aggregate is provided to obtain a pure aggregate from which foreign materials are removed. CONSTITUTION: The system(A) is configured in a manner that ground materials containing foreign materials are supplied through an input conveyer to a drum(3) rotating by a rotary unit(1), the foreign materials separated from the ground materials are fed to a duct(6) and removed and discharged by a foreign material removal portion(7), and the ground materials having passed through the drum(3) from which the foreign materials are removed are discharged to the outside through a discharge conveyer. The rotary unit(1) fixes a motor(11) coupling to a driving sprocket wheel(111) on a frame(2). Backing bearings(21,22) are fixed to the front and back sides of the frame(2) so that the drum(3) can be placed thereon. A chain(113) is connected to a driven sprocket wheel and the driving sprocket wheel(111). The drum(3) is formed integral with a particle shape improving projection(31) and a spiral guide(32).