What is eddy current separator used for?
An eddy current separator (ECS) is a machine that uses a powerful magnetic field to separate non-ferrous metals from an input waste or ore stream. The device makes use of eddy currents to effect the separation. Non-ferrous metals typically separated by an ECS include aluminum, copper and die-cast metals.
How does an eddy current work?
Unlike mechanical brakes, which are based on friction and kinetic energy, eddy current brakes rely on electromagnetism to stop objects from moving. Eddy currents are created when a conductor passes through a magnetic field, which creates opposing forces that spin inside the conductor.
What is Overband magnetic separator?
Overband magnetic separators can be installed, for instance, above a belt conveyor. Unlike magnetic blocks, overband separators remove “captured” ferrous objects continually. The magnets are thus being continuously cleaned, making them ideal for removing iron particles in large volumes.
Which is ferrous metal?
The word ‘ferrous’ comes from the Latin word ‘ferrum,’ which means ‘iron. ‘ Ferrous metals include steel, cast iron, as well as alloys of iron with other metals (such as with stainless steel).
What is electromagnetic separation?
A process of removing magnetic materials from relatively nonmagnetic materials, using electromagnets which travel along a conveyor, over a drum, or into a revolving screen. See Also: electrostatic separator, tramp iron. Ref: Nelson.
Are eddy currents AC or DC?
alternating current
Thus eddy currents are a cause of energy loss in alternating current (AC) inductors, transformers, electric motors and generators, and other AC machinery, requiring special construction such as laminated magnetic cores or ferrite cores to minimize them.
Does eddy current give shock?
eddy current don’t give shocks because two circular current are formed at the base of the utensil which are opposite in direction does they cancel each other giving us a lot of frictional heat!!!!
What is Overbelt?
An overbelt electromagnetic separator is typically mounted or suspended over a conveyor belt or a vibrating feeder. It can be installed either transversally the material flow below (cross-wise) or parallel to it (in-line).
Is gold ferrous?
Aluminum, lead, copper, tin, zinc and brass (an alloy of copper and zinc) are all non-ferrous. Precious metals like gold and silver fall into this category, too.
What is eddy current separator?
GTEK Eddy Current Separator is an advanced non-ferrous metal sorting unit which is capable of separating clean non-ferrous metals from others.
How does an electric current separator remove nonferrous metals?
Eddy current separators remove nonferrous metals such as aluminum, die-cast metal, and copper from nonmetallic material. Material is fed onto the conveyor belt of the separator, which moves it across the magnetic rotor where separation occurs.
How big is the Eriez eddy current separator 3622?
Used Eriez Eddy Current Separator Model 3622 ECS 36″ Wide 22 Pole Rotor unnamed (24) press to zoom unnamed (25) press to zoom unnamed (26) press to zoom unnamed (24) press to zoom 1/3 USED SHARPLES MODEL PM70000 HORIZONTAL DECANTER.
What is the maximum eddy current a rotor can respond to?
These materials usually respond better to very strong eddy current fields (3,000 to 5,500 gauss in the operating zone) and/or higher frequency eddy current fields. To obtain stronger eddy current fields requires more rare earth (RE) magnet material in the rotor assembly, and strong, stable quality RE magnets are expensive.