Wet Strong intensity Magnetic Separator

CSQ 50×70 wet strong-intensity magnetic separator is applicable in scientific research, teaching and comprehensive utilization and assessment of mineral resources and for separation of hematite. Iron content for the tested samples can be obtained merely with minor test samples.

                                              XCSQ 50×70 wet strong-intensity magnetic separator

  1. Application

It is applicable in scientific research, teaching and comprehensive utilization and assessment of mineral resources and for separation of hematite. Iron content for the tested samples can be obtained merely with minor test samples. The product is produced by the only enterprise designated by the former Ministry of Geology and Mineral Resources, in compliance with the Industrial standards.

It is provided for labs of metallurgical, geological, building material, light and other industries to carry out separation tests of moderate and weak-intensity magnetic minerals and also for the relevant factories and mines to check and control production and technical indexes, improving technological process.

2.Technical parameters of laboratory wet strong-intensity magnetic separator

3. Structure and working principle
It can automatically reset at the initial stage under the control by PLC, i.e. feeding valve being in the close state and ore separating hopper in the position of tailings. The excessive process delay is made at 3S to avoid mutual blending of samples, namely the ore separating bucket delaying 3S in the process of actions of tailings, middlings and concentrates .The separation operation process is that ore slurry in mixing tank is directed through feeding valve and flat nozzle into separating tank ; non-magnetic minerals with the action of gravity drop into tailing tank along the gaps of gear rack; magnetic mineral particles with the action of magnetic field are absorbed on the gear racks; the ore separating hopper after feeding swings to the upper middlings tank; the middlings flush open solenoid valve (flowrate can adjust the middling flushing gate valve);non-magnetic minerals particles entrained in the ore separating tank are flushed before the ore separating hopper swings to the upper concentrate tank and meanwhile de-energize magnetizing power supply; after magnetic fields of the separation tank disappear, the flushing solenoid valve opens and flushes the magnetic mineral particles absorbed on the gear rack into the concentrate tank ( flush volume to be controlled by the concentrate gate valve).After completion of one cycle of separation operation, PLC makes reset to the next cycle for achieving the objective of separation of magnetic from non-magnetic minerals.
This machine is composed of magnetic system, feeding part, receiving part, programmable controller, separation tank, water supply system, frame, etc.
A. Magnetic System
1. Iron ore: Five pieces of DT3 electrical pure iron are assembled into U type magnet circuit. The cross dimension of the ore is 130×220.
2. Exciting winding: Double glass-fiber covered rectangular copper wires of 1.81×5.5 are winded into magnetizing coils. Eight coils are connected in series to the two sides of separation area. Besides, fan cooling windings are installed.
3. Separation tank: The separation tank is composed of five DT3 pure iron tooth plates and two aluminum baffles. Three sets of separation tanks with separation gaps of respectively 1.5, 2 and 3 are available for replacement according to actual needs.
B. Feeding, Washing and Receiving Device
On the top of the separation box is installed agitation tank whose effective volume is 4 liter. At the bottom of the agitation drum, the tubular feeding valve, and the tee joint at the outlet of feeding valve are respectively connected to the inlet pipe and rectangular copper mouth through the rubber hose. The rectangular mouth is driven by motor to do reciprocating motion. The selected slurry enters the separation tank evenly from the agitation tank through the feeding valve and rectangular mouth.
Middling washing water and concentrate washing water flow into the separation tank respectively from the 1/2 electromagnetic valve and sluice valve through the three-way pipe and rectangular mouth. Their amount of flowing water can be adjusted with the sluice valve.
The separated products are discharged out from the separation tank and flow into designated receiving drum through the separation hopper. The separation hopper swings from left to right after the drive of the synchronous motor and eccentric connecting rod mechanism. Under the control of program controller, the motor drives the separation hopper which then swings to the position above the receiving drum. The specific control procedures are: Magnetizing – feeding – flushing the middling – demagnetizing – flushing the concentrate – magnetizing –feeding –flushing the middling –demagnetizing –flushing the concentrate; such cycle is repeated to realize the receipt of the sorted “tailings”, “middling”, and “concentrate” products.
C. Electric and Program Control Parts
Single phase bridge type rectifying current is adopted as the magnetizing current whose value is regulated through SSR voltage regulating module.
The program controller adopts the FX1S-14MR programmable controller manufactured by Mitsubishi in Japan which controls the core part of various operations. The whole operational procedure has been included in PLC machine. During practical operation, the user only needs to change the time for “ore feeding” and the time for flushing “middling” and “concentrate” respectively within designated time according to the requirements for beneficiation technology.
Since the properties of coils and iron cores are fixed, the demagnetizing time of this machine has been set on the PLC machine. It’s magnetizing and demagnetizing time is respectively 10s and 15s.
Under the control of PLC Machine, this equipment automatically returns to its original state. That is, the feeding valve is put under closed conditions and the separation hopper is put in tailings position. Besides, the operation time is prolonged for 3s during such process to avoid mixing of samples. That is, the separation hopper stays for 3s during the action process of “tailings”, “middling”, and “concentrate”. The separation process is: The slurry in the agitation drum enters the separation tank after passing the feeding valve and rectangular mouth. The non-magnetic ore grains falls into the tailing drum along the gap of toothed plate under the action of gravity. The magnetic ore grains are absorbed on the toothed plate under the action of magnetic field. After the ore is fed, the separation hopper swings to above the middling drum. The middling flushing electromagnetic valve is opened (the flow can adjust the middling flushing sluice valve) and flush the non-magnetic ore grains mixed in the separation tank. Then the separation hopper swings to above the concentrate drum. At the same time, the magnetizing power is connected. After the magnetic fields of the separation tank disappear, the concentrate flushing electromagnetic valve is opened and the magnetic ore grains sucked to the toothed plate is flushed into the concentrate drum (the volume of flushing water is regulated by the concentrate sluice valve). After one separation cycle is finished, the PLC machine resets and enters the next separation cycle, so that the magnetic ores can be separated from the non-magnetic ores.