Vertical ring high-gradient magnetic separator for continuous magnetic medium gapless magnetic separation

Abstract

The utility model discloses a vertical ring high-gradient magnetic separator for continuous magnetic medium gapless magnetic separation. The vertical ring high-gradient magnetic separator comprises a shell, a magnetic roller, an ore inlet, a tailing outlet, a concentrate outlet and a composite ore unloading device, the composite ore unloading device is arranged on the right side wall in the shell, the scraping bristles on the top of the scraping plate are attached to the surface of the magnetic roller by starting the air cylinder, the scraping bristles can scrape off ore grains which are stubborn adsorbed on the surface of the magnetic roller along with rotation of the magnetic roller, in addition, the scraping plate makes contact with the magnetic roller through the soft scraping bristles, and therefore the magnetic roller can be separated from the magnetic roller. In addition, the blowing pipe blows airflow to the magnetic roller in a concentrated mode through the air outlet nozzle, so that ore grains on the surface of the magnetic roller are blown off, ore unloading is achieved, the magnetic roller is not prone to being abraded in the mode, the service life of the magnetic roller is guaranteed, and the blowing pipe can be matched with dehairing to further improve the ore unloading effect.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic separators, in particular to a vertical ring high-gradient magnetic separator for continuous magnetic medium gapless magnetic separation. Background Art

[0002] The vertical ring high gradient magnetic separator is a highly efficient ore beneficiation equipment. Its working principle is to use the magnetic field to select and separate the ore. The vertical ring high gradient magnetic separator adopts a vertical annular magnetic field and a high-intensity gradient magnetic field to effectively separate ores with different physical properties.

[0003] Existing patent application number: CN202322310707.X A reverse vertical ring high gradient magnetic separator, comprising: a magnetic separator body, the outer surface of the magnetic separator body is provided with a crushing assembly, the outer surface of the crushing assembly is fixedly connected to a dust removal assembly; the crushing assembly comprises a crushing box, the inner front surface of the crushing box is rotatably connected to a first rotating shaft, the outer surface of the first rotating shaft is fixedly connected to a driven roller, and the front surface of the crushing box is fixedly connected to a mounting block. In this utility model, the raw ore can be crushed by the coordinated use of a hopper, a crushing box, a motor, a driving roller, a driven gear, a first rotating shaft, a second rotating shaft, a driving gear and a driven roller. After crushing, the raw ore is easy to enter the magnetic separator body, and the particle size is more uniform and the surface area is increased, which is beneficial to the separation of minerals by the magnetic separator, thereby improving the magnetic separation effect.

[0004] The above patent records a vertical ring high gradient magnetic separator. During normal operation, some magnetic mineral particles are not normally taken out after being adsorbed by the magnetic drum, but continue to be adsorbed on the surface of the magnetic drum, causing interference to the magnetic drum, reducing the magnetic separation effect of the magnetic drum on subsequent mineral particles. In the prior art, there is a technical solution of using a scraper to scrape the surface of the magnetic drum, but in the dry magnetic separator, due to the lack of liquid lubrication, the scraper in the prior art is more likely to cause wear to the magnetic drum, and it is difficult to achieve an ideal unloading effect by relying solely on the scraper. The unloading structure of the magnetic separator can be further improved to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation, so as to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a vertical ring high-gradient magnetic separator for continuous magnetic medium gapless magnetic separation, comprising a shell, a magnetic drum, an ore inlet, a tailings outlet, a concentrate outlet and a composite ore unloading device, wherein a magnetic drum is rotatably installed on the middle part of the inner side of the shell, an ore inlet is arranged on the top of the shell, a tailings outlet is arranged on the left side of the bottom of the shell, a concentrate outlet is arranged on the right side of the bottom of the shell, a composite ore unloading device is arranged on the right side wall inside the shell, the composite ore unloading device comprises a scraper, scraping hairs, a cylinder and a connecting rod, a scraper is arranged on the right side inside the shell, the bottom end of the scraper is rotatably connected to the inner wall of the shell through a rotating shaft, the scraper can be flipped to fit the surface of the magnetic drum, the top surface of the left side of the scraper is provided with scraping hairs, the scraper is flexibly in contact with the magnetic drum through the scraping hairs, a cylinder is installed on the right side wall of the shell, the telescopic end of the cylinder passes through the inner side of the shell and is hinged to the connecting rod, and the other end of the connecting rod is hinged to the scraper.

[0007] Preferably, the shaving bristles are made of nylon and the thickness of the shaving bristles is not less than 4 cm.

[0008] Preferably, a side of the scraper close to the magnetic roller is provided with an anti-sticking layer, and the anti-sticking layer is made of polymer resin.

[0009] Preferably, the connecting rod is a spring telescopic rod structure.

[0010] Preferably, a splash shield is fixed to the right side wall of the shell through a bracket, and the splash shield covers the outer side of the right part of the magnetic drum. A blow pipe is installed and connected to the outside of the splash shield, and the right part of the blow pipe is connected to an air supply pipeline, and the air supply pipeline passes through the shell to the outside, and an air outlet is installed on the left part of the blow pipe. The air outlet nozzles are arranged in a row, and a row of air outlet nozzles are evenly distributed along the left part of the blow pipe.

[0011] Preferably, the air outlet nozzle is flat-mouthed.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model arranges a composite ore unloading device on the right side wall inside the shell, and starts the air cylinder to make the scraper bristles on the top of the scraper fit against the surface of the magnetic drum. As the magnetic drum rotates, the scraper bristles will scrape off the ore particles stubbornly adsorbed on the surface of the magnetic drum. In addition, the scraper contacts the magnetic drum through the relatively soft scraper bristles, which effectively reduces the friction loss of the magnetic drum. In addition, the blowpipe blows the airflow to the magnetic drum through the air outlet nozzle, so as to blow off the ore particles on the surface of the magnetic drum, thereby realizing ore unloading. In addition, this method is not easy to cause wear to the magnetic drum, thereby ensuring the service life of the magnetic drum. The blowpipe can cooperate with the scraper bristles to further improve the ore unloading effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of the housing of the utility model;

[0015] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0016] Figure 3 This is a schematic diagram of the scraper structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the front view structure of the magnetic drum of the utility model;

[0018] Figure 5 This is a schematic diagram of the blowpipe structure of the utility model.

[0019] In the figure: shell 1, magnetic drum 2, ore inlet 3, tailings outlet 4, concentrate outlet 5, composite ore unloading device 6, scraper 61, anti-sticking layer 61a, scraper 62, cylinder 63, connecting rod 64, splash shield 65, blowpipe 66, air supply pipeline 67, air outlet nozzle 68. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0021] See also Figure 1 The utility model provides a vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation, comprising a shell 1, a magnetic drum 2, an ore inlet 3, a tailings outlet 4, a concentrate outlet 5 and a composite ore unloading device 6. The magnetic drum 2 is rotatably installed on the middle part of the inner side of the shell 1, the top of the shell 1 is provided with an ore inlet 3, the left side of the bottom of the shell 1 is provided with a tailings outlet 4, the right side of the bottom of the shell 1 is provided with a concentrate outlet 5, and the right side wall inside the shell 1 is provided with a composite ore unloading device 6.

[0022] See also Figure 2-3 The utility model provides a vertical ring high-gradient magnetic separator for continuous magnetic medium gapless magnetic separation. The composite unloading device 6 includes a scraper 61, a scraper 62, a cylinder 63 and a connecting rod 64. A scraper 61 is arranged on the right side of the shell 1. The bottom end of the scraper 61 is rotatably connected to the inner wall of the shell 1 through a rotating shaft. The scraper 61 can be turned over to fit the surface of the magnetic drum 2, so that the scraper 61 can scrape off the mineral particles stubbornly adsorbed by the magnetic drum 2. A scraper 62 is arranged on the top surface of the left side of the scraper 61. The scraper 61 is in flexible contact with the magnetic drum 2 through the scraper 62 to reduce wear. A cylinder 63 is installed on the right side wall of the shell 1. The telescopic end of the cylinder 63 penetrates into the inner side of the shell 1 and is hinged with the connecting rod 64. The other end of the connecting rod 64 is hinged with the scraper 61.

[0023] Further explanation: the scraper 62 is made of nylon, and the thickness of the scraper 62 is not less than 4 cm. The nylon scraper 62 has good softness, toughness and resilience to reduce the wear of the scraper 62 on the magnetic roller 2, and the scraper 62 can play a good elastic support between the scraper 61 and the magnetic roller 2, so that the scraper 61 is not easy to directly contact the magnetic roller 2.

[0024] To further explain, a side of the scraper 61 close to the magnetic roller 2 is provided with an anti-sticking layer 61a, which is made of polymer resin. The anti-sticking layer 61a can improve the anti-sticking performance of the scraper 61 surface, so that the scraped mineral particles are not easy to adhere to and stagnate on the scraper 61 surface.

[0025] To further explain, the connecting rod 64 is a spring telescopic rod structure, and the connecting rod 64 itself allows for telescopic movement, which can provide a certain buffer space between the scraper 61 and the cylinder 63 to prevent the cylinder 63 from being damaged by resistance.

[0026] See also Figure 4-5 The utility model provides a vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation. A splash shield 65 is fixed to the right side wall of the shell 1 through a bracket. The splash shield 65 covers the outer side of the right part of the magnetic drum 2. A blow pipe 66 is installed and connected to the outside of the splash shield 65. The right part of the blow pipe 66 is connected to an air supply pipeline 67, and the air supply pipeline 67 passes through the shell 1 to the outside. An air outlet nozzle 68 is installed on the left part of the blow pipe 66. The air outlet nozzles 68 are arranged in a row, and a row of air outlet nozzles 68 are evenly distributed along the left part of the blow pipe 66.

[0027] To further explain, the air outlet nozzle 68 is a flat-mouth type, and the flat-mouth type air outlet nozzle 68 can concentrate the wind force in the same horizontal direction, so that the air outlet nozzle 68 can more effectively blow off the mineral particles on the surface of the magnetic drum 2.

[0028] Here’s how it works:

[0029] First, when in use, the raw ore enters the shell 1 from the ore inlet 3 and contacts the rotating magnetic drum 2, wherein the magnetic ore particles are adsorbed by the magnetic drum 2 and brought into the concentrate outlet 5 to be discharged outward, while the remaining impurity ore falls vertically and is discharged outward through the tailings outlet 4, thereby realizing the magnetic separation operation of the raw ore.

[0030] Second, during use, some magnetic mineral particles are not normally taken out after being adsorbed by the magnetic drum 2, but continue to be adsorbed on the surface of the magnetic drum 2, causing interference to the magnetic drum 2 and reducing the magnetic separation effect of the magnetic drum 2 on subsequent mineral particles. By setting a composite unloading device 6 on the right side wall inside the shell 1, the magnetic drum 2 can be cleaned regularly. The specific operation method is: start the cylinder 63, and the cylinder 63 pushes the scraper 61 to flip through the connecting rod 64 until the scraper 62 on the top of the scraper 61 is attached to the surface of the magnetic drum 2. As the magnetic drum 2 rotates, the scraper 62 will scrape off the mineral particles stubbornly adsorbed on the surface of the magnetic drum 2, thereby realizing unloading. In addition, the scraper 61 contacts the magnetic drum 2 through the relatively soft scraper 62, which effectively reduces the friction loss of the magnetic drum 2.

[0031] Third, the composite unloading device 6 also has an air blowing function. When in use, the air supply pipeline 67 is first connected to an external air compressor to provide compressed air for the blow pipe 66. The blow pipe 66 then blows the airflow to the magnetic drum 2 through the air outlet 68, so as to blow off the mineral particles on the surface of the magnetic drum 2, thereby realizing unloading. In addition, this method is not easy to cause wear to the magnetic drum 2, thereby ensuring the service life of the magnetic drum 2, and the splash shield 65 can prevent the mineral particles from being blown away, so as to ensure that the mineral particles can smoothly enter the concentrate outlet 5 downward, and the blow pipe 66 can cooperate with the scraper 62 to further improve the unloading effect.

[0032] The above are only preferred examples of the present invention and are not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation, comprising a shell (1), a magnetic drum (2), an ore inlet (3), a tailings outlet (4) and a concentrate outlet (5), wherein the magnetic drum (2) is rotatably mounted in the middle of the inner side of the shell (1), the top of the shell (1) is provided with an ore inlet (3), the left side of the bottom of the shell (1) is provided with a tailings outlet (4), and the right side of the bottom of the shell (1) is provided with a concentrate outlet (5); Features: It also comprises a composite ore unloading device (6). The composite ore unloading device (6) is arranged on the right side wall inside the shell (1). The composite ore unloading device (6) comprises a scraper (61), scraper hairs (62), a cylinder (63) and a connecting rod (64). The scraper (61) is arranged on the right side inside the shell (1). The bottom end of the scraper (61) is rotatably connected to the inner wall of the shell (1) via a rotating shaft. The scraper (61) can be turned over to fit the surface of the magnetic roller (2). The scraper hairs (62) are arranged on the top surface of the left side of the scraper (61). The scraper (61) is in flexible contact with the magnetic roller (2) via the scraper hairs (62). The right side wall of the shell (1) is installed with a cylinder (63). The telescopic end of the cylinder (63) penetrates into the inner side of the shell (1) and is hinged to the connecting rod (64). The other end of the connecting rod (64) is hinged to the scraper (61).

2. According to claim 1, a vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation, characterized in that: The scraper (62) is made of nylon, and the thickness of the scraper (62) is not less than 4 cm.

3. According to claim 1, a vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation, characterized in that: A side of the scraper (61) close to the magnetic roller (2) is provided with an anti-sticking layer (61a), and the anti-sticking layer (61a) is made of polymer resin.

4. According to claim 1, a vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation, characterized in that: The connecting rod (64) is a spring telescopic rod structure.

5. The vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation according to claim 1, characterized in that: A splash shield (65) is fixedly mounted on the right side wall of the shell (1) through a bracket. The splash shield (65) covers the outer side of the right part of the magnetic drum (2). A blow pipe (66) is installed and connected to the outside of the splash shield (65). The right part of the blow pipe (66) is connected to an air supply pipeline (67), and the air supply pipeline (67) passes through the shell (1) and is connected to the outside. An air outlet nozzle (68) is installed on the left part of the blow pipe (66). The air outlet nozzles (68) are arranged in a row, and a row of air outlet nozzles (68) are evenly distributed along the left part of the blow pipe (66).

6. A vertical ring high gradient magnetic separator for continuous magnetic medium gapless magnetic separation according to claim 5, characterized in that: The air outlet nozzle (68) is of a flat mouth type.

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