Spraying structure of magnetic separator

Abstract

The utility model discloses a spraying structure of a magnetic separator. The spraying structure comprises a screening shell, the screening device comprises a screening shell, a roller and a permanent magnet, the roller is rotationally arranged in the screening shell, the permanent magnet is installed in the roller and fixedly connected with the screening shell through a supporting column, and a spraying pipe is arranged on one side, corresponding to the roller, of the screening shell. A spraying pipe is arranged on one side of the screening shell, so that high-efficiency adsorption and separation of iron-containing substances are realized; due to the rotary arrangement of the roller, adsorbed iron-containing substances can be rapidly taken out of the screen spraying pipe, the separation effect of the iron-containing substances is enhanced through the high-pressure washing function, the spraying water pressure is large, the magnet powder recycling efficiency is high, the production cost is saved, a polyurethane scraping plate is stopped from being used, static pollution is reduced, abrasion of the roller of the magnetic separator is reduced, and the service life of the magnetic separator is prolonged. The replacement frequency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separator technology, specifically to a magnetic separator spray structure. Background Technology

[0002] In numerous industrial production sectors, such as mining, metallurgy, coal washing, building materials processing, and environmental protection, magnetic separation of materials is a crucial and common operation. The main purpose of magnetic separation is to accurately separate magnetic substances from a mixture of materials. In existing magnetic separation equipment, scrapers are typically used to clean ferrous substances adsorbed on the magnetic separation components during the separation process. As the magnetic separation operation continues, the scrapers wear down and shorten, resulting in ineffective cleaning. Ferrous substances accumulate on the surface of the magnetic separation components, gradually forming a thick coating. This coating not only significantly reduces the magnetic separation components' ability to adsorb magnetic substances from subsequent materials, leading to a substantial decrease in separation efficiency, but also affects the separation accuracy. This prevents some magnetic substances that should be separated from being effectively separated, causing them to mix with non-magnetic materials and ultimately affecting the quality of the final product. Utility Model Content

[0003] The purpose of this invention is to provide a spray structure for a magnetic separator to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a magnetic separator spray structure, comprising:

[0005] Screening shell;

[0006] A drum is rotated inside the screening housing. A permanent magnet is installed inside the drum and is fixed to the screening housing by a support column. A spray pipe is provided on one side of the screening housing corresponding to the drum.

[0007] The conveying mechanism is placed inside the screening housing. The conveying mechanism includes an L-shaped plate fixed inside the screening housing. An arc-shaped plate is fixedly attached to the end of the L-shaped plate at an incline. The end of the arc-shaped plate forms a second feeding channel between itself and the inner wall of the screening housing and below the permanent magnet. The inner wall of the screening housing, the L-shaped plate, the second feeding channel, and the arc-shaped plate form a spiral channel.

[0008] Preferably, a feed hopper is fixedly connected to the side of the screening shell near the L-shaped plate, the bottom of the feed hopper is connected to the screening shell, and a guide plate is fixedly connected to the side of the screening shell opposite to the feed hopper and below the spray pipe.

[0009] Preferably, the bottom and side of the L-shaped plate form a feeding channel one with the inner wall of the screening shell, the feeding channel one is connected to the feeding channel two, and a limiting plate is fixedly connected to the outer side of the L-shaped plate and above the arc plate.

[0010] Preferably, the center of the arc-shaped plate is at the same position as the center of the roller, and the bottom of the arc-shaped plate and the L-shaped plate form a discharge channel.

[0011] Preferably, the bottom of the L-shaped plate is fixedly connected to a discharge pipe, which extends out from the bottom of the screening shell and is connected to the discharge channel at the top.

[0012] Preferably, a material guide trough is fixedly connected to the bottom of the screening shell, an electromagnet is fixedly connected to the outside of the material guide trough, and the bottom of the discharge pipe extends into the material guide trough.

[0013] Preferably, a drive motor is fixedly connected to one end of the screening shell, and the drive motor is connected to the drum drive through a spur gear set.

[0014] Compared with existing technologies, the beneficial effects of this utility model are as follows: By installing permanent magnets inside the drum and setting spray pipes on one side of the screening shell, efficient adsorption and separation of iron-containing substances are achieved; the rotating arrangement of the drum allows the adsorbed iron-containing substances to be quickly carried out of the screen; the high-pressure washing function of the spray pipes enhances the separation effect of iron-containing substances; the high spray water pressure results in high magnetic powder recovery efficiency, saving production costs; and the use of polyurethane scrapers is eliminated, reducing static pollution, reducing wear on the magnetic separator drum, and reducing replacement frequency; the spiral channel formed by the L-shaped plate, the arc plate, and the inner wall of the screening shell effectively guides the flow of the slurry, extending... The increased residence time of the slurry in the magnetic separation zone improves the magnetic separation effect. The design of feed channels one and two allows the slurry to enter the magnetic separation zone in an orderly manner, avoiding turbulence and splashing, and improving the stability and accuracy of magnetic separation. The connection between the discharge pipe and the discharge channel, and the structure of the discharge pipe extending from the bottom of the screening shell, allows for convenient discharge of the magnetically separated slurry. The guide trough and electromagnet enable secondary magnetic separation of the slurry, further improving the purity of the slurry. The energization and de-energization control of the electromagnet makes the cleaning of impurities simple and convenient, improving the maintainability and service life of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the screening shell of this utility model;

[0017] Figure 3 This is a schematic diagram of the permanent magnet structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the electromagnet of this utility model.

[0019] In the diagram: 1. Screening shell; 2. Feed hopper; 3. Guide plate; 4. Spray pipe; 5. Drum; 6. Permanent magnet; 7. Support column; 8. L-shaped plate; 9. Feed channel one; 10. Feed channel two; 11. Arc plate; 12. Limiting plate; 13. Discharge pipe; 14. Discharge channel; 15. Guide trough; 16. Drive motor; 17. Electromagnet. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1 , 2 As shown in Figures 3 and 4, this utility model provides a technical solution: a magnetic separator spray structure, comprising: a screening shell 1; a drum 5 rotatably installed inside the screening shell 1, a permanent magnet 6 installed inside the drum 5, the drum 5 and the outer side of the permanent magnet 6 rotating, the permanent magnet 6 being fixedly connected to the screening shell 1 through a support column 7, the support column 7 being rotatably connected to the drum 5, and a spray pipe 4 being provided on one side of the screening shell 1 corresponding to the drum 5; a conveying mechanism placed inside the screening shell 1, the conveying mechanism including an L-shaped plate 8 fixedly connected inside the screening shell 1, an arc plate 11 being obliquely fixedly connected to the end of the L-shaped plate 8, the end of the arc plate 11 forming a second feeding channel 10 between the end of the arc plate 1 and the inner wall of the screening shell 1 and below the permanent magnet 6, the inner wall of the screening shell 1, the L-shaped plate 8, the second feeding channel 10 and the arc plate 11 forming a spiral channel.

[0022] It should be noted that the slurry of this invention is fed into the screening shell 1 through the slurry inlet at one end. Under the separation of the L-shaped plate 8, the slurry flows along the inner wall of the screening shell 1 and then enters the top of the arc plate 11 through the feed channel 2 10. Under the attraction of the permanent magnet 6, the iron-containing material is adsorbed on the outside of the drum 5. The drum 5 rotates counterclockwise and carries the adsorbed iron-containing material out of the screening shell 1. Then, the spray pipe 4 is connected to high-pressure water, and the outside of the drum 5 is washed with high pressure by the high-pressure water, thereby blowing down the iron-containing material on the outside of the drum 5 for collection. The slurry after being magnetically separated enters between the arc plate 11 and the L-shaped plate 8 along the arc plate 11 and is discharged through the discharge pipe 13.

[0023] Please see Figure 1 , 2As shown in Figure 4, a feed hopper 2 is fixedly connected to the side of the screening shell 1 near the L-shaped plate 8. The bottom of the feed hopper 2 is connected to the screening shell 1. A guide plate 3 is fixedly connected to the side of the screening shell 1 away from the feed hopper 2 and below the spray pipe 4.

[0024] It should be noted that the feed hopper 2 of this utility model has a funnel-shaped structure, and the bottom of the feed hopper 2 extends into the screening shell 1 and is located between the L-shaped plate 8 and the inner wall of the screening shell 1, which facilitates the introduction of the slurry inside the feed hopper 2 into the screening shell 1. After screening is completed, the iron-containing material is carried by the roller 5 to the bottom of the spray pipe 4. The spray pipe 4 blows the iron-containing material above the guide plate 3 for guidance screening and separation by rinsing.

[0025] Please see Figure 2 As shown, the bottom and sides of the L-shaped plate 8 form a feeding channel 9 with the inner wall of the screening housing 1. The feeding channel 9 is connected to the feeding channel 10. A limiting plate 12 is fixedly attached to the outer side of the L-shaped plate 8 and above the arc plate 11. The center of the arc plate 11 is at the same position as the center of the roller 5. The bottom of the arc plate 11 and the L-shaped plate 8 form a discharge channel 14. A discharge pipe 13 is fixedly connected to the bottom of the L-shaped plate 8. The discharge pipe 13 passes through the bottom of the screening housing 1 and the top of the discharge pipe 13 is connected to the discharge channel 14.

[0026] It should be noted that the slurry of this utility model enters the feeding channel 9 at the bottom of the L-shaped plate 8 through the feeding hopper 2, and enters the feeding channel 10 along the inclined structure at the bottom of the screening shell 1. Under the attraction of the permanent magnet 6, the material moves upward along the feeding channel 10 and is adsorbed on the outside of the drum 5 and carried away. Then, under the action of air pressure, the bottom of the feeding hopper 2 is higher than the top of the arc plate 11, and the slurry passes through the end of the arc plate 11 into the discharge channel 14 formed by the arc plate 11 and the L-shaped plate 8, and is then discharged along the discharge pipe 13 in the discharge channel 14.

[0027] Please see Figure 1 , 2 As shown in Figure 4, a guide trough 15 is fixedly connected to the bottom of the screening shell 1, an electromagnet 17 is fixedly connected to the outside of the guide trough 15, and the bottom of the discharge pipe 13 extends into the guide trough 15.

[0028] It should be noted that the material screened by this utility model enters the discharge channel 14 through the discharge pipe 13 and flows to one end through the discharge channel 14. During this period, the electromagnet 17 is energized to perform secondary magnetic separation on the flowing material. After processing, the electromagnet 17 is de-energized to clean the impurities adsorbed by the electromagnet 17.

[0029] Please see Figure 2 , 3 As shown, a drive motor 16 is fixedly connected to one end of the screening shell 1, and the drive motor 16 is connected to the drum 5 through a spur gear set.

[0030] It should be noted that the roller 5 of this utility model is provided with round tubes at both ends, and the support column 7 passes through the middle of the round tube and is fixedly connected to the screening shell 1. The support column 7 is rotatably connected to the round tube. The spur gear set includes two meshing spur gears. The two spur gears are respectively fixedly connected to the round tube and the output end of the drive motor 16, so that the roller 5 can be driven to rotate outside the permanent magnet 6 by the motor.

[0031] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spray structure for a magnetic separator, characterized in that: include: Screening shell (1); A drum (5) is rotated inside the screening housing (1). A permanent magnet (6) is installed inside the drum (5). The permanent magnet (6) is fixed to the screening housing (1) by a support column (7). A spray pipe (4) is provided on one side of the screening housing (1) corresponding to the drum (5). The conveying mechanism is placed inside the screening housing (1). The conveying mechanism includes an L-shaped plate (8) fixed inside the screening housing (1). An arc-shaped plate (11) is fixedly attached to the end of the L-shaped plate (8). The end of the arc-shaped plate (11) forms a second feeding channel (10) between the end of the arc-shaped plate (1) and the inner wall of the screening housing (1) and below the permanent magnet (6). The inner wall of the screening housing (1), the L-shaped plate (8), the second feeding channel (10) and the arc-shaped plate (11) form a spiral channel.

2. The magnetic separator spray structure according to claim 1, characterized in that: The screening shell (1) is fixedly connected to a feed hopper (2) on the side near the L-shaped plate (8). The bottom of the feed hopper (2) is connected to the screening shell (1). The screening shell (1) is fixedly connected to a guide plate (3) on the side away from the feed hopper (2) and below the spray pipe (4).

3. The magnetic separator spray structure according to claim 1, characterized in that: The bottom and side of the L-shaped plate (8) form a feeding channel one (9) with the inner wall of the screening shell (1). The feeding channel one (9) is connected to the feeding channel two (10). A limiting plate (12) is fixedly connected to the outside of the L-shaped plate (8) and above the arc plate (11).

4. The magnetic separator spray structure according to claim 3, characterized in that: The center of the arc plate (11) is at the same position as the center of the roller (5), and the bottom of the arc plate (11) and the L-shaped plate (8) form a discharge channel (14).

5. The magnetic separator spray structure according to claim 4, characterized in that: The bottom of the L-shaped plate (8) is fixedly connected to a discharge pipe (13), which extends out from the bottom of the screening shell (1) and is connected to the discharge channel (14) at the top.

6. The magnetic separator spray structure according to claim 5, characterized in that: The bottom of the screening shell (1) is fixedly connected to a guide trough (15), and an electromagnet (17) is fixedly connected to the outside of the guide trough (15). The bottom of the discharge pipe (13) extends into the guide trough (15).

7. The magnetic separator spray structure according to claim 1, characterized in that: One end of the screening housing (1) is fixedly connected to a drive motor (16), and the drive motor (16) is connected to the drum (5) through a spur gear set.

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