Determination of recycling performance of some non-ferrous metals via prototype Eddy current separator [Prototip Eddy akimi ayriştiricisi ile bazi demirsiz metallerin geri kazanim performansinin belirlenmesi]

Eddy current method has been used effectively on to separating valuable non-ferrous metals. it called eddy current separator (ecs) due to operates this method. magnetic drum consisting high field magnets is rotated at high speeds. thus,drum induces eddy current in the metal while it is passing over the carrier band of ecs. a force occurs due to the effects of this magnetic field and drum field. the force separates non-ferrous metals from the waste. density,form,size,resistivity,of the materials,magnetic field intensity,speed,pole number of the drum determine separation force. this paper consist of fundamentals rules,theory of ecs system,drum structure. performance determination was studied with experimental measurements on the prototype ecs. when the magnetic drum of prototype is rotated between 900 and 2400 rpm,separation forces are measured on the test materials such as the aluminium,the copper and the brass plate with the sizes 50x40,50x30 ve 50x20 and their thicknesses are 1.5 mm respectively. the best force results are achieved with the materials 50x40 mm at the speed of 2400 rpm. separation efficiency is better on the aluminium material because aluminium has higher rate of electrical conductivity per density. it has been also achieved efficiency over % 95 with the experiments of separation process with 2 kg waste which is included 5-10 mm copper,aluminium particles together plastic at higher than 1500 rpm speed.