CN211385388U - Combined Vertical Ring Suspension Disturbance High Gradient Magnetic Separator - Google Patents

Abstract

The utility model discloses a modular found ring suspension disturbance high gradient magnet separator, wash mechanism and concentrate fill including frame, change, magnetism system, concentrate, magnetism system includes yoke, lower yoke and exciting coil, the ore pulp groove has set firmly in the frame, the bottom outer wall department in ore pulp groove is located to the lower yoke, in the change is located to the yoke, the lower half of change is located in the ore pulp inslot, be equipped with ore pulp disturbance device in the ore pulp groove. The utility model discloses a combination formula is found ring suspension disturbance high gradient magnet separator can obtain the more excellent sorting effect of standing ring pulsation high gradient magnetic separation equipment in the sorting of fine grit level mineral (like red mud).

Description

Combined Vertical Ring Suspension Disturbance High Gradient Magnetic Separator

technical field

The utility model belongs to the field of magnetic separation, in particular to a magnetic separator.

Background technique

High-gradient magnetic separation technology is an effective method to separate fine-grained weak magnetic minerals. The vertical ring pulsating high gradient magnetic separation equipment has been widely used in the weak magnetic mineral sorting. The basic working process of this equipment is that the raw ore pulp is fed into the magnetic medium on the swivel ring through the gap of the upper magnetic yoke, and the magnetic particles are adsorbed. On the surface of the magnetic medium, the rotating swivel is taken away from the separation area of the strong magnetic field, and is reversely washed by the flushing water at the top of the swivel, and flushed into the concentrate hopper; the non-magnetic particles are not captured by the magnetic medium, and the Under the action of pulsating fluid force, it passes through the magnetic medium area and is discharged along the gap of the lower magnetic yoke as tailings, thereby realizing the separation from magnetic particles. In order to make the pulp enter and exit the separation medium box smoothly, it is necessary to leave a pulp channel in the upper magnetic yoke and the lower magnetic yoke of the equipment, which destroys the integrity of the magnetic yoke, and then destroys the uniformity of the local magnetic field distribution.

The research shows that in the high-gradient magnetic separation system with the longitudinal configuration (the direction of the magnetic field is parallel to the ore feeding direction, and both are perpendicular to the axial direction of the magnetic medium), the mechanical inclusion of gangue minerals is mainly due to the impact of the ore feeding flow on the magnetic medium. Caused by direct impact of magnetic mineral accumulation areas. The vertical ring pulsating high gradient magnetic separation equipment adopts a vertical configuration, and the ore flow directly impacts the magnetic mineral accumulation area on the medium, which is easy to cause gangue minerals to be mixed in the magnetic mineral accumulation area, which affects the concentrate grade.

In order to solve the problem of magnetic medium clogging, the vertical ring pulsating high gradient magnetic separation equipment introduces a certain intensity of pulsating flow. The introduction of pulsating flow solves the problem of magnetic medium clogging and helps to improve the concentrate grade to a certain extent. The pulsation increases the fluid viscous force on the fine-grained weak magnetic minerals, and the fine-grained minerals lose more seriously.

In addition, the use of narrow-grain segmented magnetic separation is beneficial to improve the separation efficiency of weakly magnetic minerals. The existing vertical ring pulsating high-gradient magnetic separation equipment usually completes the full-grain separation in one operation, which is not conducive to eliminating coarse-grained and fine-grained minerals. Adverse effects of each other in the sorting of grain-sized minerals.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies and defects mentioned in the above background technology, and provide a combined vertical ring suspension disturbance high gradient magnetic separator. In order to solve the above-mentioned technical problems, the technical scheme proposed by the present utility model is:

A combined vertical ring suspension disturbance high gradient magnetic separator includes a frame, a swivel ring, a magnetic system, a concentrate washing mechanism and a concentrate hopper, and the magnetic system includes an upper magnetic yoke, a lower magnetic yoke and an excitation coil. A slurry tank is fixed on the frame, the lower magnetic yoke is arranged at the bottom outer wall of the slurry tank, the upper magnetic yoke is arranged in a swivel ring, and the lower half of the swivel ring is located in the slurry tank, A slurry disturbance device is arranged in the slurry tank.

In the utility model, between the upper and lower magnetic yokes is a sorting area, and the magnetic medium of the swivel ring is located in the sorting area for capturing magnetic particles.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the slurry disturbance device includes a swing arm and a beam, the swing arm is connected to the beam, and the beam is arranged at the bottom of the slurry tank, the The swing arm is provided with a drive mechanism for driving the swing arm to reciprocate to drive the beam to swing at the bottom of the pulp tank. The swing arm of the pulp disturbance device is close to the end face of the pulp tank, and the beam connects the two swing arms. The swing arm drives the beam to swing, thereby disturbing the pulp and suspending the mineral particles, so as to facilitate the collection of weak magnetic mineral particles by the magnetic medium. More preferably, the rotation angle β of the swing arm is -30°˜30°.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the upper magnetic yoke, the lower magnetic yoke and the swivel ring are arranged concentrically.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the slurry tank, the swivel ring, the magnetic system and the slurry disturbance device are all inclined, and the The inclination angles are the same, and the included angle θ between the central axis of the swivel ring and the horizontal plane does not exceed 15°. The inclined magnetic separator makes it easier for the raw ore pulp to flow from one end of the pulp tank to the other under the action of gravity.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the magnetic system further includes a bottom yoke and a side yoke, the bottom yoke is arranged at the bottom of the lower yoke, and the side yoke is arranged at the bottom of the lower yoke. at both ends of the slurry tank. The function of the bottom yoke and the side yoke is to communicate the magnetic circuit.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the number of the swivel rings is multiple (such as 2 to 10), the multiple swivel rings are coaxially arranged in series, and each swivel ring is independently set. There are upper and lower yokes that cooperate with each other.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the number of the swivel rings is multiple, and the magnetic field force generated by each swivel ring increases sequentially along the flow direction of the pulp.

In the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, preferably, the combined vertical ring suspension disturbance high gradient magnetic separator does not contain a pulse generating device. Because the structure of the magnetic separator of the utility model is different from that of the existing conventional magnetic separation, there is no problem that the magnetic medium is blocked and the separation cannot be continued, and the pulse generating device can not be used to avoid the increase of the pulsation and the weakening of the fine particle size. The fluid viscous force on magnetic minerals reduces the loss of fine-grained minerals.

The pulp disturbance device and pulp tank of the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator can be made of 304 stainless steel, but not limited to other non-magnetic conductive materials that can meet the mechanical requirements.

The utility model also provides a method for beneficiation using the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, comprising the following steps:

S1: Drive the swivel to rotate, pass direct current into the excitation coil, and generate a magnetic field in the sorting area between the upper yoke and the lower yoke;

S2: Add raw ore pulp into the pulp tank, turn on the pulp disturbance device, when the raw ore pulp flows through the bottom of the swivel ring, the magnetic particles are adsorbed on the surface of the magnetic medium of the swivel ring, and leave the sorting area as the swivel ring rotates, and are refined at the top of the swivel ring. The ore flushing mechanism flushes into the concentrate hopper;

S3: After the magnetic particles are collected and adsorbed by the rotating ring for many times, the tailings slurry that is not collected by the rotating ring is discharged from the slurry tank, that is, the entire beneficiation process is completed.

In the above method, preferably, a plurality of swivel rings are arranged along the flow direction of the pulp, and along the flow direction of the pulp, the magnetic field force generated by each swivel ring increases sequentially. The magnetic medium on the swivel ring can be reasonably configured as required. For example, in the axial flow direction of the slurry, the size of the magnetic medium on each swivel ring decreases in turn, or different media types are used, so that the The magnetic force increases in turn, so that the coarse-grained minerals and fine-grained minerals are sorted in different regions, and the mutual influence between the two is weakened.

Compared with the prior art, the advantages of the present utility model are:

1. The upper and lower magnetic yokes of the combined vertical ring suspension perturbation high-gradient magnetic separator of the present invention do not need to leave a slurry channel and a clear water channel, thereby maintaining the integrity of the upper and lower magnetic yokes, and the magnetic field distribution is more uniform.

2. The utility model changes the ore feeding method, the ore slurry flows into the ore slurry tank by itself, and the mineral particles are evenly suspended under the action of the ore pulp disturbance device, thereby avoiding the vertical ring pulsating high gradient magnetic separation equipment. Mineral accumulation zones cause problems with mechanical inclusions.

3. The magnetic medium in the present utility model directly captures the magnetic particles in the suspended pulp, which will not cause the problem of clogging of the magnetic media and the inability to continue the separation, and the disturbance of the pulp disturbance device only needs to ensure that the particles can be evenly suspended, without the need for Strong agitation will not cause serious loss of fine-grained minerals.

4. The multiple groups of swivel rings of the present invention can work simultaneously, and the size of the medium on the swivel rings can be reduced in turn in the direction of the slurry flow. The magnetic field generated by the medium increases sequentially, and the coarse and fine-grained mineral particles are sorted in different areas, which greatly enhances the adaptability of the equipment and improves the mineral sorting efficiency.

5. In the present utility model, the current of each group of excitation coils can be adjusted independently, which further improves the flexibility of equipment operation and the adaptability to raw materials.

In general, the combined vertical ring suspension perturbation high gradient magnetic separator of the present invention can obtain better sorting effect than vertical ring pulsation high gradient magnetic separation equipment in the separation of fine-grained minerals (such as red mud). .

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a combined vertical ring suspension disturbance high gradient magnetic separator in an embodiment.

FIG. 2 is a top view of FIG. 1 .

FIG. 3 is a front view in the direction of the C-C section shown in FIG. 2. FIG.

FIG. 4 is a 1/2 cross-sectional view of a schematic structural diagram including a slurry tank, a magnetic yoke, a swivel and a beam in an embodiment.

FIG. 5 is a schematic structural diagram of the slurry disturbance device in the embodiment.

FIG. 6 is a front view along the C-C section direction in FIG. 2 when the combined vertical ring suspension disturbance high gradient magnetic separator in the embodiment is placed obliquely.

illustration:

1. Frame; 2. Swivel; 31. Upper yoke; 32. Lower yoke; 33. Exciting coil; 34. Bottom yoke; 35. Side yoke; 4. Concentrate washing mechanism; 5. Concentrate Bucket; 6. Mine slurry tank; 7. Mine pulp disturbance device; 71. Swing arm; 7101. First connecting hole of swing arm; 7102. Second connecting hole of swing arm; 72. Beam; 8. Main shaft; 9. Support shaft; 10 , Mine feeding port; 11. Mine discharging port.

Detailed ways

In order to facilitate understanding of the present utility model, the present utility model will be described more comprehensively and in detail below with reference to the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present utility model is not limited to the following specific embodiments.

Unless otherwise defined, all technical terms used hereinafter have the same meaning as commonly understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments, and are not intended to limit the protection scope of the present invention.

Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or can be prepared by existing methods.

Example:

As shown in Figures 1-4, the combined vertical ring suspension disturbance high gradient magnetic separator of this embodiment includes a frame 1, a swivel ring 2, a magnetic system, a concentrate washing mechanism 4 and a concentrate hopper 5. The magnetic system includes The upper magnetic yoke 31, the lower magnetic yoke 32 and the excitation coil 33, a slurry tank 6 (such as a semi-cylindrical shape) is fixed on the frame 1, and the two ends of the slurry tank 6 are respectively provided with an ore feeding port 10 and an ore discharging port 11, and the lower The magnetic yoke 32 is arranged at the bottom outer wall of the slurry tank 6, the upper magnetic yoke 31 is arranged in the swivel 2, the lower half of the swivel 2 is located in the slurry tank 6, and the slurry tank 6 is provided with a slurry disturbance device 7, which acts as a The function of stirring the pulp to suspend the mineral particles evenly.

As shown in FIG. 5 , in this embodiment, the pulp disturbance device 7 includes a swing arm 71 and a beam 72 , the swing arm 71 is connected to the beam 72 , the beam 72 is arranged at the bottom of the slurry tank 6 , and the swing arm 71 is provided with a pendulum for driving the pendulum. The arm 71 reciprocates to drive the drive mechanism that drives the beam 72 to swing at the bottom of the slurry tank 6 (the dashed arrow in FIG. 5 indicates the movement direction).

In this embodiment, there is a support shaft 9 just above both ends of the main shaft 8 of the swivel ring 2, and the pulp disturbance device 7 can rotate and swing around the support shaft 9 under the action of external force. In this embodiment, the swing arm 71 is provided with a swing arm first connection hole 7101 and a swing arm second connection hole 7102. The swing arm first connection hole 7101 is connected to the support shaft 9, and the swing arm second connection hole 7102 is connected to the drive mechanism (such as connecting rod, not shown in the figure) connection.

In this embodiment, the rotation angle β of the swing arm 71 is -30° to 30° (all the above ranges are acceptable).

In this embodiment, the upper magnetic yoke 31 , the lower magnetic yoke 32 and the swivel ring 2 are arranged coaxially.

In this embodiment, the slurry tank 6, the swivel ring 2, the magnetic system and the slurry disturbance device 7 are all inclined, and the inclination angles of the slurry tank 6, the swivel ring 2, the magnetic system and the slurry disturbance device 7 are the same.

In this embodiment, the angle θ between the central axis of the swivel ring 2 and the horizontal plane does not exceed 15°.

In this embodiment, the magnetic system further includes a bottom magnetic yoke 34 and a side magnetic yoke 35 .

In this embodiment, there are multiple swivel rings 2 , the multiple swivel rings 2 are coaxially arranged in series, and each swivel ring 2 is independently provided with an upper magnetic yoke 31 and a lower magnetic yoke 32 that cooperate with each other.

In this embodiment, the combined vertical ring suspension disturbance high gradient magnetic separator does not contain a pulse generating device.

The present embodiment also provides a method for beneficiation using the above-mentioned combined vertical ring suspension disturbance high gradient magnetic separator, comprising the following steps:

S1: drive the swivel 2 to rotate, pass direct current into the excitation coil 33, and generate a magnetic field in the sorting area between the upper magnetic yoke 31 and the lower magnetic yoke 32;

S2: Add raw ore pulp into the pulp tank 6 through the ore feeding port 10, open the pulp disturbance device 7, when the raw ore pulp flows through the bottom of the swivel ring 2, the magnetic particles are adsorbed on the surface of the magnetic medium of the swivel ring 2, and rotate with the swivel ring 2 Leaving the separation area, at the top of the swivel 2, it is washed by the concentrate washing mechanism 4 into the concentrate hopper 5; the magnetic particles that have not been captured continue to be collected by the magnetic media of other swivel rings under the disturbance of gravity and the slurry disturbance device 7 Enter the concentrate bucket 5, and so on;

S3: After the magnetic particles are captured and adsorbed by the swivel 2 for many times, the tailings slurry that is not captured by the swivel 2 is discharged from the discharge port 11 of the slurry tank 6, that is, the entire beneficiation process is completed.

When using the above-mentioned combined vertical ring suspension to disturb the high gradient magnetic separator for ore dressing, the height of the supporting feet of the frame 1 can be adjusted to make the magnetic separator inclined (as shown in Figure 6), so that the raw ore pulp can be more easily realized under the action of gravity It flows from the ore feed port 10 to the direction of the ore discharge port 11 . In addition, the magnetic field force generated by each swivel ring 2 can be increased in turn along the direction of the slurry flow. etc., the coarse and fine-grained magnetic particles in the raw ore pulp can be collected in sequence (the coarse-grained magnetic particles are collected first, and the fine-grained magnetic particles are collected later), so that the coarse-grained minerals and fine-grained minerals are in different The sorting is completed in the area, and the mutual influence between the two sorting is weakened.

Claims (9)

1. A combined vertical ring suspension disturbance high gradient magnetic separator, comprising a frame (1), a swivel (2), a magnetic system, a concentrate washing mechanism (4) and a concentrate hopper (5), the magnetic The system includes an upper magnetic yoke (31), a lower magnetic yoke (32) and an excitation coil (33). ) is arranged at the bottom outer wall of the slurry tank (6), the upper magnetic yoke (31) is arranged in the swivel (2), and the lower half of the swivel (2) is located in the slurry tank (6) , the slurry tank (6) is provided with a slurry disturbance device (7). 2. The combined vertical ring suspension perturbation high gradient magnetic separator according to claim 1, wherein the slurry perturbation device (7) comprises a swing arm (71) and a beam (72), and the swing arm ( 71) is connected with a beam (72), the beam (72) is arranged at the bottom of the slurry tank (6), and the swing arm (71) is provided with a reciprocating motion for driving the swing arm (71) to drive the beam ( 72) A drive mechanism swinging at the bottom of the pulp tank (6). 3 . The combined vertical ring suspension disturbance high gradient magnetic separator according to claim 2 , wherein the rotation angle β of the swing arm (71) is -30° to 30°. 4 . 4. The combined vertical ring suspension disturbance high gradient magnetic separator according to any one of claims 1 to 3, wherein the upper magnetic yoke (31), the lower magnetic yoke (32) and the swivel ( 2) Concentric setting. 5. The combined vertical ring suspension disturbance high gradient magnetic separator according to any one of claims 1 to 3, characterized in that the slurry tank (6), the swivel (2), the magnetic system and the slurry disturbance The devices (7) are all inclined, the inclination angles of the slurry tank (6), the swivel ring (2), the magnetic system and the slurry disturbance device (7) are the same, and the central axis of the swivel (2) is clamped with the horizontal plane. The angle θ does not exceed 15°. 6 . The combined vertical ring suspension disturbance high gradient magnetic separator according to claim 1 , wherein the combined vertical ring suspension disturbance high gradient magnetic separator does not contain a pulse generating device. 7 . 7. The combined vertical ring suspension disturbance high gradient magnetic separator according to any one of claims 1 to 3, wherein the magnetic system further comprises a bottom magnetic yoke (34) and a side magnetic yoke (35) The bottom magnetic yoke (34) is arranged at the bottom of the lower magnetic yoke (32), and the side magnetic yoke (35) is arranged at both ends of the pulp tank (6). 8. The combined vertical ring suspension disturbance high gradient magnetic separator according to any one of claims 1 to 3, wherein the number of the swivel rings (2) is multiple, and the multiple swivel rings (2 ) are coaxially arranged in series, and each swivel (2) is independently provided with an upper magnetic yoke (31) and a lower magnetic yoke (32) that cooperate with each other. 9. The combined vertical ring suspension disturbance high gradient magnetic separator according to any one of claims 1 to 3, wherein the number of the swivel rings (2) is multiple, and each swivel ring (2) ) generated by the magnetic field force increases sequentially along the direction of slurry flow.

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