CN2382474Y - Crawler-type magnetic separator - Google Patents

Abstract

The utility model discloses a crawler-type magnetic separator, which is mainly composed of a sweeping permanent magnet roller (1), a belt (2), a diversion groove (3), a crawler-type magnetic system (4), a selection permanent magnet Magnetic roller (6), ore feeding flushing nozzle (9), ore unloading flushing nozzle (10), magnetic induction unloader (11), concentrate tank (13), tailings tank (18) and overflow tank (19) and so on. The utility model has the advantages of being able to simultaneously complete all beneficiation processes of roughing, sweeping, and beneficiation, with long magnetic force action distance, long magnetic stirring action time, and high recovery efficiency and high grade of magnetic ore grains. The utility model has strong operability, small area occupied by equipment, saves engineering investment, reduces production cost, and can be used for both dry and wet operations.

Description

Tracked Magnetic Separator

The utility model relates to magnetic separation technology, in particular to a crawler-type magnetic separation device.

At present, the cylindrical magnetic separators used in the mineral processing field at home and abroad are mainly composed of rollers, magnetic systems, tanks and other parts. Limited by its structure, the distance of the magnetic field force is short, and the action time is insufficient, and the magnetic ore particles are easily lost due to "short circuit", resulting in a low metal recovery rate; It is always in the ore slurry. When the previous magnetic chain is opened, the original impurities are pulled out and removed. At the same time, new gangue and other impurities may be trapped in the latter magnetic chain. It is difficult to obtain high-quality super iron concentrate, and The beneficiation process is very complicated, consisting of roughing, beneficiation, and sweeping multiple stages and a combination of multiple equipment, which cannot meet the needs of current beneficiation operations.

The purpose of the utility model is to provide a crawler-type magnetic separator which can complete the three-stage separation operation of roughing, beneficiation and sweeping at one time, and directly obtain high-quality super iron ore concentrate.

The technical solution of the present utility model is realized in this way:

Crawler-type magnetic separator, it is mainly composed of sweeping permanent magnet roller (1), belt (2), diversion groove (3), crawler magnetic system (4), ore feeding trough (5), selection permanent magnet Magnetic roller (6), motor (8), ore feeding flushing nozzle (9), ore unloading flushing nozzle (10), magnetic induction unloader (11), concentrate tank (13), tailings tank (18 ), overflow tank (19), belt slope adjustment device (17) and frame (14) etc. constitute. A belt (2) is installed on the sweeping permanent magnet roller (1) and the selection permanent magnet roller (6), and a diversion groove (3) is installed under the belt (2), and a fixed A crawler magnetic system (4) is installed. In the middle part of the belt, an ore feeding tank (5) is installed, and an ore flushing nozzle (9) is installed at the rear end of the ascending belt (2), and a belt tensioner (12) is installed below the descending belt (2). A magnetic induction unloader (11) is installed next to the selected permanent magnet roller (6), and an ore discharge flushing nozzle (11) is provided above between the permanent magnet roller (6) and the magnetic induction unloader (11). 10), below which is provided with a concentrate tank (13). An overflow tank (18) and a tailings tank (19) are respectively provided under the sweeping permanent magnet cylinder (1), and the belt (2) is driven by the motor through the selection permanent magnet roller (6) and the transmission belt port (7). (8) drive. Sweeping permanent magnet rollers (1) and selected permanent magnet rollers (6) are installed on the belt chute (16), a belt deviation adjustment tensioning device (20) is installed at the front end of the belt chute, and a belt tensioning device (20) is installed below it. Belt slope adjustment device (17). Whole equipment is installed on the frame (14).

A 360° full-angle magnetic system is installed in the sweeping permanent magnet roller (1), and a 90-150° wrap-angle magnetic system is fixedly installed in the selective permanent magnet roller (6). The crawler magnetic system (4) is composed of magnetic blocks arranged alternately in polarity, and the magnetic blocks can be selected from strontium ferrite permanent magnetic blocks or cerium cobalt copper permanent magnetic alloy blocks.

This magnetic separator can work wetly or dryly, so the medium used for the ore washing nozzle (9) and the discharge washing nozzle (10) can be high-pressure water or high-pressure air.

The utility model has the advantages of:

1. The utility model adopts the structure of roller type permanent magnet rotating magnetic system, crawler type magnetic system and belt diversion groove, so that the magnetic separator is divided into rough selection area, sweeping area and selection area, and the rough selection area can be completed in one machine at the same time. The whole beneficiation process of beneficiation, sweeping and beneficiation simplifies the technological process, reduces the equipment footprint and the length of the slurry pipeline, saves engineering investment and reduces production costs.

2. The utility model has a long magnetic action distance and a long magnetic stirring action time, so the recovery efficiency of magnetic ore particles is high and the grade is high.

3. The utility model is equipped with ore-feeding flushing nozzles in the beneficiation area, so that the magnetic ore particles are washed in the clear water medium and the double action of the magnetic field and the gravity field removes impurities and deslimes more thoroughly. The utility model integrates gravity beneficiation and magnetic beneficiation In one, thus can obtain higher metal recovery rate and higher grade super iron ore concentrate.

4. The utility model has strong operability. By adjusting the magnetic declination angle of the rotating magnetic system of the selected permanent magnet roller, the inclination angle of the belt and the amount of flushing water for ore feeding, the adjustment of the concentrate grade and metal recovery rate can be realized.

5. The utility model can be used for both dry and wet operations, and has a wide range of applications.

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic diagram of the working principle of the utility model.

Example:

As shown in Figure 1. The utility model is mainly composed of sweeping permanent magnet roller 1, belt 2, diversion tank 3, crawler magnetic system 4, ore feeding tank 5, selection permanent magnet roller 6, transmission belt 7, motor 8, ore washing Nozzle 9, ore unloading flushing nozzle 10, magnetic induction unloading roller 11, concentrate tank 13, frame 14, belt slope adjustment device 17, tailings tank 18 and overflow tank 19, etc. Belt 2 is installed on the outer wall of the permanent magnet drum 1 as the tail wheel of the belt and the selected permanent magnet drum 6 as the first wheel, and a crawler magnetic system 4 is arranged below the belt 2, and the crawler magnetic system 4 Fixedly installed on the magnetic guide plate and the support 15, the magnetic guide plate and the support 15 are fixed on the belt chute support 16. Between the crawler magnetic system 4 and the belt 2, there is a diversion groove 3 made of glass fiber reinforced plastic or stainless steel. The diversion groove 3 is mainly used for diverting the slurry and protecting the magnetic system. Sweeping permanent magnet roller 1 is provided with 360 ° rotating magnetic system, and selected permanent magnet roller 6 is provided with 123 ° wrap angle magnetic system, and both rollers are made of stainless steel or fiberglass. The motor 8 drives the selected permanent magnet roller 6 to rotate clockwise through the transmission belt 7, thereby driving the belt 2 and the sweeping permanent magnet roller 1 to move.

The above-mentioned rotating magnetic system, angle wrapping magnetic system and crawler magnetic system 4 are all composed of magnetic blocks arranged in alternating polarity, and the magnetic blocks can be strontium ferrite permanent magnet blocks or cerium cobalt copper permanent magnet alloy blocks.

In the middle part of the belt 2, an ore feeding equalizer 5 or an electric vibration feeding machine is installed, and an ore flushing nozzle 9 is installed at the tail of the up belt 2, and a belt tensioner 12 is installed below the down belt 2. A magnetic induction unloading roller 11 is installed next to the selected permanent magnet roller 6, and an ore discharge flushing nozzle 10 is arranged above the selected permanent magnet roller 6 and the magnetic induction unloading roller 11. A concentrate tank 13 is provided under the cylinder 6 and the magnetic induction unloading roller 11 . An overflow tank 18 and a tailings tank 19 are respectively provided under the sweeping permanent magnet cylinder 1 . The medium used for the above-mentioned ore feeding flushing nozzle 9 and discharge flushing nozzle 10 can be high-pressure water or high-pressure air. Sweeping permanent magnetic roller 1 and selecting permanent magnetic roller 6 are installed on the belt chute 16, and the rear end of this belt chute is hinged with frame 14. Belt deviation adjusting tensioning device 20 is fixed on belt chute 16 front portions, and belt slope adjusting device 17 is installed below belt chute 16. According to the different specific gravity of mineral dressing, the slope of the belt can be properly adjusted by using the belt slope adjustment device 17, and the inclination angle of the belt can be varied in the range of 5-15°.

Sorting principle and working process of the utility model are as follows:

See Figure 2. The raw ore material is evenly spread on the upward belt 2 by the ore feeding uniform groove 5, and enters the roughing area. During the moving process, due to the alternation of the polarity of the magnetic system, the magnetic chain formed by the magnetic ore particles is continuously opened and flipped, and advances in a leaping manner. At this time, the non-magnetic and weakly magnetic ore particles mixed in the flux chain are removed, and rise to the concentration area (that is, after the ore equalizing tank 5) through the rough selection area (that is, the magnetic force field before the ore equalizing tank 5) magnetic force field), under the action of clear water sprayed from the ore-feeding flushing nozzle 9, the strong magnetic ore particles are further elutriated to remove mud and impurities, and finally enter the concentrate tank 13 under the action of the induction roller 11 and the ore-discharging flushing water . The fine ore sludge removed flows into the overflow tank 18 , and the non-magnetic minerals with larger specific gravity fall into the tailings tank 19 .

The hard-to-select magnetic ore particles in the roughing tailings descend to the outer belt 2 of the sweeping permanent magnet roller with the ore flow, and are recovered under the action of a stronger magnetic field, continue to go up along the belt 2, and finally fall into the fine In mine tank 13.

Claims (6)

1. A crawler-type magnetic separator, which comprises a permanent magnet roller (1), a belt (2), an ore feeding chute (5), a belt tensioner (12), a motor (8), a transmission belt (7), Concentrate tank (13), tailings tank (18), overflow tank (19) and frame (14), characterized in that: the magnetic separation area is mainly composed of sweeping permanent magnet rollers (1), crawler magnetic system (4), selected permanent magnetic roller (6) constitutes, sweeping selected permanent magnetic roller (1) and selected permanent magnetic roller (6) are equipped with belt (2), installed under the up belt (2) A diversion groove (3) is arranged, and a crawler-type magnetic system (4) is fixedly installed below the diversion groove (3). The back end is equipped with a mine feeding flushing nozzle (9), and a belt tensioning device (12) is installed under the descending belt (2); a magnetic induction unloader (11) is installed next to the selection permanent magnet roller (6). ), above the permanent magnet roller (6) and the magnetic induction unloader (11) is provided with an ore discharge flushing nozzle (10), and below the permanent magnet roller (6) is provided with a concentrate tank (13), below the sweeping permanent magnet roller (1), be respectively provided with overflow tank (18) and tailings groove (19); Belt (2) passes through selecting permanent magnet roller (6) and driving belt ( 7) Driven by the motor (8); the whole device is installed on the frame (14). 2. The magnetic separator according to claim 1, characterized in that: the sweeping permanent magnet roller (1) and the selected permanent magnet roller (6) are installed above the belt chute (16), and the belt is adjusted Tight device (20) is installed in the front end of belt chute (16), and belt slope adjusting device 17 is installed in the below of belt chute (16). 3. The magnetic separator according to claim 1 or 2, characterized in that: a 360° full-angle magnetic system is installed in the sweeping permanent magnet roller (1), and a 90° full-angle magnetic system is installed in the selection permanent magnet roller (6). ~150° wrap angle magnetic system. 4. The magnetic separator according to claim 1 or 2, characterized in that: the crawler magnetic system (4) is composed of magnetic blocks arranged alternately in polarity, and the magnetic blocks can be strontium ferrite permanent magnets or Cerium-cobalt-copper permanent magnet alloy block. 5. The magnetic separator according to claim 1 or 2, characterized in that the medium used for the ore-feeding flushing nozzle (8) and the discharge flushing nozzle (9) can be either high-pressure water or high-pressure air. 6. The magnetic separator according to claim 1 or 2, characterized in that the adjustment angle of the belt (2) is 5-15°.

Images