High gradient magnetic separator is divided into vertical ring magnetic separator and flat ring magnetic separator, flat ring high gradient magnetic separator medium easy to plug, vertical ring magnetic separator rotary ring vertical rotation, backwash concentrate to overcome the flat ring strong magnetic magnetic separator magnetic medium plug problem, which is at home and abroad in recent decades has not been solved technical problems.
In the working process of high gradient magnetic separator, for each group of magnetic medium, the direction of washing concentrate is opposite to the direction of feeding ore, coarse particles can be washed out without passing through the magnetic medium reactor, thus effectively preventing the blocking of magnetic medium;High frequency vibration mechanism is set to drive pulp to produce pulsating fluid force.
Under the action of pulsating fluid force, the ore particles in slurry are always in loose state, which can improve the quality of magnetic concentrate.
The flat ring high gradient magnetic separator has strict requirements for ore feeding granularity. The unique magnetic system structure and the optimized magnetic medium make the upper limit of ore feeding granularity of the magnetic separator reach 2.0mm, which simplifies the field grading operation and has more extensive adaptability.
The grade and recovery of iron concentrate are improved by using multi-gradient medium technology and liquid level stability control device.The rotating speed of the rotating ring and the vibration frequency of the high-frequency vibration box are stepless regulated by a frequency converter.
Compared with domestic similar products, its unique design effectively solves the "stepping" phenomenon of swivel ring.
High gradient magnetic separators have the advantages of large concentration ratio, strong adaptability to feed degree, concentration and product fluctuation, reliable work, easy operation and maintenance, etc.
At work, after the slurry flows into the tank through the feed box, under the action of the water flow from the feed pipe, the ore particles enter the feed area of the tank in a loose state.Under the action of the magnetic field, the magnetic particles form a "magnetic cluster" or "magnetic chain". The "magnetic cluster" or "magnetic chain" is affected by the magnetic force in the pulp and moves towards the magnetic pole, which is then adsorbed on the cylinder
.Due to the polarity of the magnetic poles along the cylinder rotation direction are arranged alternately, and fixed at work, "magnetic group" or "magnetic chain" in the cylinder rotates, with alternating polarity magnetic stirring, was mixed in the "magnetic group" or "magnetic chain" of the gangue and other non-magnetic minerals in turn off, has finally been sucked on the surface of the cylinder, the "magnetic group" or "magnetic chain" is to concentrate.
The concentrate is transferred to the weakest part of the magnetic force along with the cylinder to the edge of the magnetic system.Non-magnetic or weakly magnetic minerals are left in the pulp and are discharged out of the tank with the pulp.
High gradient magnetic separator equipment is suitable for the mineral separation of weak magnetic minerals, such as: hematite, limonite, siderite, ilmenite, chromite, wolframite, tantalum niobium ore, red mud.Iron removal and purification of nonmetallic minerals.
