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CN-122006896-A - Wet-type roller magnetic separator

CN122006896ACN 122006896 ACN122006896 ACN 122006896ACN-122006896-A

Abstract

The invention relates to the technical field of mining screening equipment, and discloses a wet-type roller magnetic separator which comprises a machine body, wherein a sorting box and a guide plate are respectively arranged on the inner wall of the machine body, a tailing outlet pipe is fixedly connected to the bottom of the sorting box, a material passing cavity, a sorting cavity and a tailing cavity positioned in the sorting box are respectively formed in the inner wall of the machine body through the sorting box and the guide plate, through holes are formed in the surface of the sorting box, a feeding cavity and a concentrate cavity are respectively formed in the inner wall of the machine body, which are close to the two sides of the roller, the inner wall of the machine body is rotatably connected with the roller, and an electromagnet is arranged in the roller. According to the invention, the material retaining cavity is arranged, when the large-block magnetic aggregate non-magnetic impurities on the surface of the roller squeeze the regulating plate, the regulating plate is closer to the surface of the roller, so that the pressing plate contacts with the regulating plate, and the pressing plate pushes the magnetic aggregate into the material retaining cavity and crushes the magnetic aggregate on the sieve plate, so that the magnetic aggregate separation effect is improved, and the problem of reducing the blockage of a concentrate discharge channel is solved.

Inventors

  • WU XIAOLE
  • WANG JUWEN
  • HU XIANXIANG
  • ZHANG FEILONG
  • MENG FANHAI

Assignees

  • 淮北矿业股份有限公司

Dates

Publication Date
20260512
Application Date
20251223

Claims (10)

  1. 1. The utility model provides a wet drum magnetic separator, including organism (1), organism (1) inner wall is provided with separation box (3) and guide board (32) respectively, separation box (3) bottom fixedly connected with tailing exit tube (311), through separation box (3) and guide board (32) open respectively in organism (1) inner wall and expect chamber (33), separation chamber (34) and be located tailing chamber (35) of separation box (3), through-hole (31) have been seted up on separation box (3) surface, be located organism (1) inner wall and be close to cylinder (2) both sides and still offered feed cavity (12) and concentrate chamber (13) respectively, organism (1) inner wall rotation is connected with cylinder (2), be provided with electro-magnet (22) in cylinder (2), its characterized in that still includes stay material chamber (41), set up in separation chamber (34) are close to concentrate chamber (13) exit point, it has regulating plate (4) to articulate in material chamber (41), stay material chamber (41) articulated point is provided with the torsional spring, cylinder (2) surface laminating clamp plate (42) are provided with clamp plate (42), keep material chamber (42) and flexible platen (42) to link to each other through movable clamp plate (42), a feed back cavity (36) matched with the sieve plate (411) is arranged between the guide plate (32) and the inner wall of the machine body (1).
  2. 2. The wet drum magnetic separator as claimed in claim 1, wherein the screen plate (411) has a plurality of screen holes.
  3. 3. The wet drum magnetic separator as claimed in claim 1, wherein the movable assembly comprises movable plates (421) fixedly connected to two sides of the pressing plate (42), guide rails (422) are fixedly connected to the shaft centers of two sides of the drum (2), the movable plates (421) are limited and slide in the guide rails (422) and are connected with the guide rails (422) through tension springs (423), and when the tension springs (423) are in a relaxed state, the pressing plate (42) is tightly attached to the surface of the drum (2).
  4. 4. A wet drum magnetic separator as set forth in any one of claims 1-3 further comprising a reflow assembly comprising a reflow plate (321) fixedly connected to the connection between said feed-through chamber (33) and said reflow chamber (36), said reflow plate (321) being arcuate, and a gap between said reflow plate (321) and said guide plate (32) forming a reflow opening.
  5. 5. The wet drum magnetic separator as claimed in claim 4, wherein the baffle plate (322) adapted to the reflux port is hinged on the surface of the guide plate (32), a torsion spring is arranged at the hinge position of the baffle plate (322) and the guide plate (32), and the baffle plate (322) completely shields the reflux port when the torsion spring is in a releasing state.
  6. 6. The wet drum magnetic separator as claimed in claim 1, wherein a material pushing pipe (52) is arranged in the material passing cavity (33) in a penetrating manner, a plurality of material pushing spray heads (521) are arranged on the surface of the material pushing pipe (52), and one end of the material pushing pipe (52) penetrates through the machine body (1) and is connected with external water supply equipment.
  7. 7. The wet drum magnetic separator as claimed in claim 1, wherein the inner wall of the concentrate chamber (13) is provided with a mineral unloading pipe (5) in a penetrating way, the surface of the mineral unloading pipe (5) is provided with a plurality of mineral unloading spray heads (51), the mineral unloading spray heads (51) point to the surface of the drum (2), and one end of the mineral unloading pipe (5) penetrates through the machine body (1) and is connected with external water supply equipment.
  8. 8. A wet drum magnetic separator as claimed in claim 7, characterized in that the concentrate chamber (13) is fixedly connected with a guide plate (15) adapted to the discharge nozzle (51) and the drum (2).
  9. 9. The wet drum magnetic separator as claimed in claim 1, wherein a discharge port (14) is formed in one side of the machine body (1) close to the concentrate cavity (13), and the discharge port (14) is communicated with the interior of the concentrate cavity (13).
  10. 10. The wet drum magnetic separator as claimed in claim 1, wherein a plurality of supporting legs (11) are arranged at the bottom of the machine body (1).

Description

Wet-type roller magnetic separator Technical Field The invention relates to the technical field of mining screening equipment, in particular to a wet drum magnetic separator. Background The wet drum magnetic separator is a device for sieving magnetic iron powder by utilizing magnetism, and becomes core equipment for treating fine-fraction, high-mud-content or magnetic-difference minerals by virtue of the high-efficiency sorting capability and environmental protection characteristics. At present, when mineral materials with higher magnetic substance content are processed, the wet drum magnetic separator is faced with a series of problems caused by agglomeration of magnetic clusters, because strong magnetic minerals are easy to form agglomeration phenomenon in a magnetic field due to the magnetic field, namely 'magnetic clusters', non-magnetic impurities can be mechanically wrapped or adsorbed on the surfaces of the magnetic clusters, so that the non-magnetic substances are mixed into concentrate, a concentrate discharge channel is blocked, and the grade of the concentrate is obviously reduced. In order to solve the above-mentioned problems, in the prior art, the magnetic force to the agglomerated magnetic clusters is often reduced by adjusting the magnetic field parameters, for example, in a wet drum permanent magnet separator disclosed in publication No. CN112090587B, the size of magnetism is adjusted by moving the electromagnet away from or close to the drum so as to weaken or enhance the magnetic separation force, but the overall magnetic field strength in the magnetic separation process is adjusted in this way, and other dispersed concentrate is not easy to be adsorbed by the drum due to weakening of magnetism while weakening the clusters, so that adverse effects are caused to the improvement of concentrate screening grade. Disclosure of Invention The invention aims to provide a wet drum magnetic separator to solve the problems of the prior art. In order to achieve the purpose, the wet drum magnetic separator comprises a machine body, wherein a sorting box and a guide plate are respectively arranged on the inner wall of the machine body, a tailing outlet pipe is fixedly connected to the bottom of the sorting box, a material passing cavity, a sorting cavity and a tailing cavity positioned in the sorting box are respectively formed in the inner wall of the machine body through the sorting box and the guide plate, through holes are formed in the surface of the sorting box, a feeding cavity and a concentrate cavity are respectively formed in the inner wall of the machine body, which is close to the two sides of the machine body, the inner wall of the machine body is rotationally connected with the machine body, an electromagnet is arranged in the machine body, a driving motor is arranged on the surface of the machine body, the output end of the driving motor is fixedly connected with the machine body in an axial direction, the wet drum magnetic separator further comprises a material retaining cavity, the material retaining cavity is arranged at a position close to the concentrate cavity outlet, an adjusting plate is hinged in the material retaining cavity, a torsion spring is arranged at a hinge point of the adjusting plate, a pressing plate is arranged on the surface of the machine body in a fitting mode, the pressing plate is connected with the machine body through a movable assembly, a screen plate which is matched with the pressing plate is also arranged in the material retaining cavity, and a material returning cavity matched with the screen plate is formed between the machine body and the inner wall. Preferably, the surface of the sieve plate is provided with a plurality of sieve holes. Preferably, the movable assembly comprises movable plates fixedly connected to two sides of the pressing plate, guide rails are fixedly connected to the shaft centers of two sides of the roller, the movable plates are limited and slide in the guide rails and are connected with the guide rails through tension springs, and when the tension springs are in a loosening state, the pressing plate is tightly attached to the surface of the roller. Preferably, the device further comprises a backflow component, wherein the backflow component comprises a backflow plate fixedly connected to the joint of the material passing cavity and the material returning cavity, the backflow plate is arc-shaped, and a backflow port is formed in a gap between the backflow plate and the guide plate. Preferably, the baffle plate adapted to the reflow opening is hinged to the surface of the guide plate, a torsion spring is arranged at the hinged position of the baffle plate and the guide plate, and the baffle plate completely shields the reflow opening when the torsion spring is in a relaxed state. Preferably, a material pushing pipe is arranged in the material passing cavity in a penetrating way, a plurality of material pushing spray heads are arran