Conventional roll and drum magnetic separators use centrifugal and magnetic force to separate non-magnetic and magnetic particles from a material stream. The centrifugal force must be able to eject the non-magnetic particles, but at the same time not overcome the magnetic force holding the magnetic particles. Centrifugal force sets a limit on the separator feed rate and the separation efficiency.
On the FLANMAG roll separator, the feed material falls from a hopper onto a ramp, it travels down the ramp and is placed on the magnet at a position which depends on the amount of magnetics in the feed.
On contact with the tail roll magnet, the material is separated into non-magnetic and magnetic fractions. The non-magnetic component falls from the magnet (NM1) and the magnetic component is transferred by the rotation of the drum or roll until it is out of the influence of the magnetic field and continues along the conveyor belt until it reaches the second roll (head roll).
Non-magnetics not rejected at the tail magnetic roll (NM1), are removed at the head magnetic roll (NM2). The second magnetic roll will separate feed material containing a high amount of magnetics, for example ilmenite in heavy mineral concentrate. The rotation speed is set to match the amount of the magnetic component.
The benchtop FLANMAG laboratory roll separator is ideal for:
- Comparison performance & capacity testing versus conventional centrifugal rare earth roll separators
- Investigations into the purification or concentration of mineral samples deemed economically unfeasible by conventional roll separators
- Evaluation separation performance of plant scale rare earth roll separators
- Determination of the magnetic response of minerals.
- Separating weakly susceptible magnetic materials
- Mineral research, testing and analysis.
- Scoping full scale production equipment and flow sheet development
Lightweight strong carbon steel frame
AISI 304 Stainless Steel Feed Hopper, feeder tray, feed & product chutes
Electromagnetic vibrating feeder
Angle and position adjustable inclined feed chute
Two products in three product chutes (magnetics, non-magnetics 1 & 2)
Pot adjustable Roll VSD & vibratory feeder controller with digital output displays
0.37 kW shaft mount geared motor for driven roll
For single phase 110/240V power (50/60hz)
Weight 130 kgs
Two Rare Earth Head & Tail Rolls
Supplied with aramid cloth [Kevlar] belt 0.125mm and polyurethane belt 1.2mm thick.
