Equipment for the selection of not ferromagnetic metallic materials from Municipal Industrial Solid Waste based on the principle of the eddy currents induced by variable electromagnetic fields

摘要

The equipment for the detection, acceleration and separation of not ferromagnetic metallic materials contained in Municipal or industrial Solid wastes based on the principle of the eddy currents comprises in combination: - inductor blocks made of ferromagnetic sheets having rabbets shaped like comb (1 ) and copper windings inside the rabbets (2 ); a metal detector (4 ); a microprocessor (5 ); an electrical three phase power supply system at variable or constant frequency (6 ), a tape conveyor (7 ), a waste measuring hopper (9 ) provided with motorized stellar valve (15 ) and air shaker (17 ), a system of waste height control (19 ) ; a system of collection of the separated not ferromagnetic metals (21 ); a conveyor tape (22 Fig.3) for the removal of the wastes after the passage between the inductor blocks and a cooling system of inductor blocks (8),