The electromagnetic gravity washing machine is a new type of weak magnetic separation equipment . The device draws on the separation principle of the original permanent magnet magnetic machine and the combined effect of the moving magnetic field on the magnetic mineral. Design a new selection of equipment with a decreasing magnetic field strength from top to bottom. It is the ideal equipment to improve the quality of concentrate. The electromagnetic magnetic system is used instead of the original permanent magnet magnetic system, so that the constant magnetic field becomes a magnetic field that can be adjusted at any time; the influence of the change of the ore and the ore selectivity on the sorting effect is satisfied.
The electromagnetic magnetic system adopts intermittent DC power supply mode, so that the magnetic field in the coil selection area is present and not present. The agglomeration-dispersion-agglomeration of the original magnetic concentrator is improved. The electromagnetic gravity washing machine designed eight electromagnetic coils from top to bottom, and the middle six adopts a power supply mode from top to bottom to form a magnetic force for downward movement of magnetic minerals; the selection effect on magnetic minerals is improved.
According to the needs of the sorting process, a special magnetic system with high magnetic field strength and low lower part in the upper selection area of ​​the ore point is designed. Balanced the problem of high rising water velocity in the upper part of the ore point and low rising water speed in the lower part of the mine.
The device is equipped with a slurry specific gravity detecting device, and is also equipped with an automatic control system to automatically adjust the selected magnetic field strength. Automatic control principle: The system detects the change of mineral amount entering the electromagnetic gathering machine at any time. When the ore quantity increases, the specific gravity of the slurry increases, the system automatically increases the magnetic field strength of the electromagnetic magnetic system, and increases the suction force to the magnetic mineral; when the mineral quantity decreases At the time, the specific gravity reduction system of the slurry automatically reduces the magnetic field strength of the electromagnetic magnetic system and reduces the downward suction of the magnetic mineral. This eliminates the need for manual intervention and the device always works at its best.
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