Rotating magnetic field efficient dispersion magnetic separator

Abstract

The invention belongs to the technical field of low-intensity magnetic separators for magnetic iron ore separation, and particularly relates to a rotating magnetic field efficient dispersion magnetic separator based on a magnetic field force, gravity, a centrifugal force a mechanical dispersion force. The separator comprises a magnetic system transmission device, a barrel, a separation trench, a grate, a magnetic system, a main shaft, a rack, a water supply device and a barrel transmission device, wherein the magnetic system transmission device and the barrel transmission device are mounted at the two side ends of the upper part of the rack respectively; the main shaft is sleeved with the barrel and the magnetic system; a separation cavity is arranged between side walls of the barrel and the separation trench and internally provided with the grate; the upper end of the main shaft is connected with the magnetic system transmission device; the lower end of the main shaft is arranged on the rack by a bearing; the barrel is connected with the barrel transmission device; an ore feed port and an overflow port are formed in two side walls of the upper end of the separation trench respectively; a middling port and a concentrate port are formed in the lower end face of the separation trench; and a concentrate guiding trench is formed in the separation trench and under the barrel and communicated with the concentrate port.

Description

technical field [0001] The invention belongs to the technical field of weak magnetic field magnetic separator for magnetite ore separation, in particular to a rotating magnetic field high-efficiency dispersive magnetic separator based on magnetic field force, gravity, centrifugal force and mechanical dispersing force. Background technique [0002] Magnetic separation is a simple and effective method of material treatment, which can avoid the disadvantages of chemical treatment methods of chemical pollution and high cost. Due to the low grade and high impurity content of iron ore in my country, qualified ironmaking raw materials must be obtained through multi-stage magnetic separation. For strong magnetic ore, using a weak magnetic field magnetic separator can effectively obtain high-grade iron ore concentrate, but if you need to obtain iron concentrate with an iron grade higher than 67%, you must use a selection equipment such as a magnetic separation column. [0003] The p...

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Problems solved by technology

[0007] (3) The grade of the tailings of the magnetic separation column is high, and some poor and rich contiguous organisms can easily enter the tailings with the gangue, resulting in the tailings still need to be processed due to the high grade

[0009] Studies have shown that after a stage of grinding, more than 30% of the magnetite contained in the ore will appear in the state of monomer dissociation. The current magnetic separation equipment cannot realize the function of separating this part of the magnetite in advance. Therefore, the developed A new type of compound force field magnetic separation equipment, in line with the mining development trend of high-efficiency recovery, energy saving and consumption reduction

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