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Low intensity magnetic separators, Lims, are designed to recover magnetic material from nonmagnetic matter. The separators are of modular design with several frames and process tank designs using a common magnetic drum for ease of selection of the best machine for each individual application.
Low intensity magnetic separators
Metso Lims separators are designed around the revolving magnetic drum with an internally stationary magnetic array. They are available in several types for vast number of duties and could be seen as split into two categories, dry separation and wet separation.
The dry models are intended predominantly for material 2 to 200 millimeters in dry or nearly dry state like crushed iron ore.
The wet versions are designed for material of a few micrometer size to less than around 6 - 8 millimeters suspended in water. For both separator types a number of magnetic systems are available for highest possible efficiency of each application.
Lims magnetic separators have proven to have outstandingly high capacity thus fewer machines are required.
Excellent selectivity between magnetic and non-magnetic material. Since fewer machines are in service, less maintenance is required and lower capital and operating costs are achieved.
Ease of operation
Designed to allow normal variations in feed conditions without the need of any adjustment.
Low maintenance costs
Protected against wear by rubber linings of the tanks and rubber or steel covering of the drums. Bearings are designed for extremely long duty and the lubrication can easily be automated.
For dry material, around 20 mm and coarser the belt drum type of separator, Lims BSS or Lims BSA, is preferred.
For dry material finer than 20 mm the dust house enclosed Lims drum separator, model DS, is recommended.
Finer material is in almost all applications preferred to be processed in a water. Also for the wet processing there are a number of Lims models to choose from.
The concurrent, Lims CC, and counter-rotation, Lims CR, models are mostly selected for processing of ore at the feed end of the concentration circuit.
For production of the final concentrate the counter-current, Lims CTC, is the most efficient and mostly used for producing high grade products.
For recovery of magnetite and ferrosilicon in dense media separation processes a special Lims models, DM and CR, are designed to provide highest possible recovery of the media.
For all wet processing separators the magnet system is selected to achieve best performance in each individual case.
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