Magnetic separator for magnetite powder production process

Abstract

A magnetic separator for a magnetite powder production process, comprising a magnetic separation box (1). An opening is formed in a side wall of the magnetic separation box (1), and a door (2) is hingedly connected at the opening; the door (2) is provided with an observation window (3); a feeding channel (5) is obliquely arranged on the magnetic separation box (1); a feeding hopper (4) is fixed on the top of the feeding channel (5); a material distribution mechanism (6) is arranged inside the magnetic separation box (1); a primary magnetic separation drum (7) and a secondary magnetic separation drum (8) are rotatably mounted in the magnetic separation box (1); multiple partition strips (9) are evenly arranged on the side wall of the primary magnetic separation drum (7) along the circumferential direction; and a driving mechanism (10) is mounted on the side wall of the magnetic separation box (1) away from the door (2), and is used for driving the primary magnetic separation drum (7) and the secondary magnetic separation drum (8) to rotate synchronously.

Description

A magnetic separator for magnetite powder production process Technical Field

[0001] The present invention relates to the technical field of magnetic separators, in particular to a magnetic separator used in a magnetite powder production process. Background Art

[0002] Magnetic separators are used to remove iron powder and other substances from recycled powdered particles. They are widely used in resource recycling, the timber industry, mining, kiln industry, chemical industry, food industry, and other factories. They are suitable for wet magnetic separation of materials with a particle size of less than 3mm, such as magnetite, pyrrhotite, roasted ore, and ilmenite. They are also used for iron removal operations in materials such as coal, non-metallic minerals, and building materials. They are one of the most widely used and highly versatile machines in the industry.

[0003] In the prior art, during the screening process of the magnetic separator, since the mineral powder is fed in large batches, when too much mineral powder is fed in a single batch, the magnetic material in the mineral powder cannot be in uniform and sufficient contact with the magnetic separation drum, resulting in a low magnetic separation rate and poor magnetic separation effect of the magnetic separator. Summary of the Invention

[0004] The purpose of the present invention is to provide a magnetic separator for magnetite powder production process to solve the following technical problem: the current magnetic separator has a low magnetic separation rate due to excessive discharge of ore powder in a single batch.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A magnetic separator for a magnetite powder production process comprises a magnetic separation box, an opening is provided on the side wall of the magnetic separation box, and a box door is hinged at the opening, an observation window is provided on the box door, a discharge channel is obliquely provided on the magnetic separation box, a discharge hopper is fixed on the top of the discharge channel, a material dividing mechanism is provided inside the magnetic separation box, a main magnetic separation cylinder and a secondary magnetic separation cylinder are rotatably installed in the magnetic separation box, a plurality of dividing strips are evenly provided on the side wall of the main magnetic separation cylinder along the circumferential direction, and a driving mechanism is installed on the side wall of the magnetic separation box away from the box door, for driving the main magnetic separation cylinder and the secondary magnetic separation cylinder to rotate synchronously.

[0007] As a further solution of the present invention: the driving mechanism includes a motor mounting base, the motor mounting base is fixed on the side wall of the magnetic separation box, and a motor is installed on the motor mounting base. One end of the rotating shaft of the main magnetic separation drum and the secondary magnetic separation drum passes through the side wall of the magnetic separation box, and a secondary pulley is installed at one end of the rotating shaft of the main magnetic separation drum, and a main pulley is installed at one end of the rotating shaft of the secondary magnetic separation drum, a belt is connected between the secondary pulley and the main pulley, and the output shaft of the motor is fixedly connected to the secondary magnetic separation drum.

[0008] As a further solution of the present invention: the material distribution mechanism includes a mounting plate, the two ends of the mounting plate are respectively fixed on the top wall and side wall of the magnetic separation box, and the mounting plate is parallel to the material discharge channel, and two material discharge ports are opened on the mounting plate, and the first material discharge plate and the second material discharge plate are respectively rotatably installed in the two material discharge ports, one end of the first material discharge plate and the second material discharge plate is located above the main magnetic separation cylinder, and the bottom of the first material discharge plate and the second material discharge plate are connected to a first arc spring, one end of the first arc spring is connected to the mounting plate, and a plurality of sieve holes are arranged in an array on the first material discharge plate.

[0009] As a further solution of the present invention: a baffle is fixed above the end of the first blanking plate and the second blanking plate away from the main magnetic separation cylinder, and two supporting mechanisms are fixed on the side wall of the mounting plate away from the first arc spring. The two supporting structures are respectively located below the first blanking plate and the second blanking plate, and the supporting structure includes two L-shaped support rods, and a support wheel is installed at one end of the L-shaped support rod.

[0010] As a further solution of the present invention: a cavity is opened inside the main magnetic separation cylinder, a mounting shaft is fixed inside the main magnetic separation cylinder, and a plurality of knocking mechanisms are installed on the side wall of the mounting shaft. The knocking mechanism includes two sleeves, one end of the sleeve is fixed on the mounting shaft, and the other end of the sleeve is provided with an opening, a movable rod is movably provided in the opening, a knocking rod is fixed to one end of the two movable rods, and a limit block is provided at the end of the movable rod away from the knocking rod.

[0011] As a further solution of the present invention: a discharge port is opened on one side wall of the magnetic separation box, and a first scraper is fixed in the discharge port, one end of the first scraper contacts the secondary magnetic separation cylinder, and two mounting blocks are symmetrically installed on the inner surface of the side wall of the magnetic separation box away from the discharge port, and a second scraper is rotatably installed between the two mounting blocks, one end of the second scraper contacts the main magnetic separation cylinder, and a second arc spring is connected to the upper surface of the second scraper, and one end of the second arc spring is connected to the inner wall of the magnetic separation box.

[0012] As a further solution of the present invention: a first collecting box is fixed on one side wall of the magnetic separation box, the first collecting box is located below the first scraper plate, and a second collecting box and a third collecting box are provided on the inner surface of the bottom wall of the magnetic separation box, and the tops of the first collecting box, the second collecting box and the third collecting box are all provided with openings.

[0013] Beneficial effects of the present invention:

[0014] The present invention provides a material separation mechanism, a main magnetic separation drum, a secondary magnetic separation drum, a driving mechanism and other structures, and utilizes the material separation mechanism to separate the mineral powder, thereby avoiding excessive discharge in a single batch. At the same time, the main magnetic separation drum and the secondary magnetic separation drum cooperate with each other, and the main magnetic separation drum performs the first magnetic separation. Since some materials with weak magnetic separation may exist, in order to prevent these materials from not being magnetically separated, the secondary magnetic separation drum performs the second magnetic separation, which can magnetically separate the magnetic mineral powder with weak magnetic properties and the outer magnetic powder, thereby ensuring the magnetic separation effect.

[0015] The material distribution mechanism of the present invention includes a first material distribution plate and a second material distribution plate. The first material distribution plate is provided with a sieve hole. Part of the mineral powder falls onto the second material distribution plate through the sieve hole, thereby preventing a large amount of mineral powder from falling onto the main magnetic separation drum at the same time. In addition, since the main magnetic separation drum is provided with a separation bar, when the main magnetic separation drum continuously rotates, the first material distribution plate and the second material distribution plate can be driven to shake. On the one hand, the material distribution can be accelerated, and on the other hand, the mineral powder on the first material distribution plate and the second material distribution plate can be shaken off, so that the mineral powder is evenly distributed.

[0016] The present invention provides a mounting shaft and a knocking mechanism in the main magnetic separation cylinder. When the main magnetic separation cylinder rotates, the interior of the main magnetic separation cylinder can be knocked continuously, thereby shaking off some non-magnetic substances mixed in the magnetic separation material, thereby improving the accuracy of magnetic separation.

[0017] The present invention is also provided with a first collecting box, a second collecting box, a third collecting box, a first scraper plate and a second scraper plate and other structures, which can automatically scrape and collect materials on the main magnetic separation cylinder and the secondary magnetic separation cylinder. Materials with different magnetic properties enter different collection boxes, which makes collection and processing convenient and reduces the workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below with reference to the accompanying drawings.

[0019] FIG1 is a structural schematic diagram of the present invention;

[0020] FIG2 is a second structural diagram of the present invention;

[0021] FIG3 is a schematic diagram of the internal structure of the magnetic separation box of the present invention;

[0022] FIG4 is a schematic structural diagram of a material distribution mechanism of the present invention;

[0023] FIG5 is a schematic diagram of the internal structure of the main magnetic separation cylinder of the present invention;

[0024] FIG6 is a schematic structural diagram of the knocking mechanism of the present invention;

[0025] FIG7 is a schematic structural diagram of the second scraper of the present invention.

[0026] In the figure: 1. Magnetic separation box; 2. Box door; 3. Observation window; 4. Discharge hopper; 5. Discharge channel; 6. Material distribution mechanism; 601. Mounting plate; 602. Discharge port; 603. First discharge plate; 604. Second discharge plate; 605. First arc spring; 606. Sieve hole; 607. Baffle; 608. L-shaped support rod; 609. Support wheel; 7. Main magnetic separation cylinder; 701. Mounting shaft; 702. Sleeve; 703. Movable rod; 704. Beating rod; 705. Limit block; 8. Secondary magnetic separation cylinder; 9. Separation bar; 10. Driving mechanism; 11. Mounting block; 12. Second scraper plate; 13. Second arc spring; 14. Discharge port; 15. First scraper plate; 16. First collecting box; 17. Second collecting box; 18. Third collecting box. Implementation Method

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0028] Please refer to Figures 1-3. The present invention is a magnetic separator for a magnetite powder production process, comprising a magnetic separation box 1. An opening is provided on the side wall of the magnetic separation box 1, and a box door 2 is hinged at the opening. An observation window 3 is provided on the box door 2. A discharge channel 5 is obliquely provided on the magnetic separation box 1. A discharge hopper 4 is fixed on the top of the discharge channel 5. A material dividing mechanism 6 is provided inside the magnetic separation box 1. A main magnetic separation drum 7 and a secondary magnetic separation drum 8 are rotatably installed in the magnetic separation box 1. A plurality of dividing strips 9 are evenly provided on the side wall of the main magnetic separation drum 7 along the circumferential direction. A driving mechanism 10 is installed on the side wall of the magnetic separation box 1 away from the box door 2, for driving the main magnetic separation drum 7 and the secondary magnetic separation drum 8 to rotate synchronously; the ore powder to be magnetically separated is added into the discharge hopper 4, and then sent into the magnetic separation box 1 through the discharge channel 5. The discharge channel 5 is a rectangular structure, and the ore powder falls On the material distribution mechanism 6, and then under the action of the material distribution mechanism 6, it falls on the main magnetic separation drum 7. A plurality of dividing bars 9 are provided on the main magnetic separation drum 7. A receiving groove is formed between the adjacent dividing bars 9 and the main magnetic separation drum 7, which can hold a certain amount of mineral powder. The magnetic position is adsorbed on the main magnetic separation drum 7. The driving mechanism 10 is used to drive the main magnetic separation drum 7 and the secondary magnetic separation drum 8 to rotate synchronously, and the rotation direction is clockwise. Since the mineral powder accumulates on the side wall of the main magnetic separation drum 7, some materials with weaker magnetism may not be completely adsorbed by the main magnetic separation drum 7, and some magnetic materials are located outside and cannot be completely adsorbed. When the main magnetic separation drum 7 and the secondary magnetic separation drum 8 rotate, these magnetic materials with weaker magnetism or located outside can be adsorbed by the secondary magnetic separation drum 8, which can ensure that the magnetic mineral powder is completely adsorbed and the magnetic separation effect is guaranteed.

[0029] Referring to Figure 2, the driving mechanism 10 includes a motor mounting base, which is fixed on the side wall of the magnetic separation box 1. A motor is installed on the motor mounting base. One end of the rotating shaft of the main magnetic separation drum 7 and the secondary magnetic separation drum 8 passes through the side wall of the magnetic separation box 1, and a secondary pulley is installed at one end of the rotating shaft of the main magnetic separation drum 7, and a main pulley is installed at one end of the rotating shaft of the secondary magnetic separation drum 8. A belt is connected between the secondary pulley and the main pulley, and the output shaft of the motor is fixedly connected to the secondary magnetic separation drum 8; during magnetic separation, the motor is started, and the motor drives the secondary magnetic separation drum 8 to rotate. Under the action of the main pulley, the secondary pulley and the belt, the main magnetic separation drum 7 can be driven to rotate synchronously, and the two rotate in the same direction.

[0030] 3 and 4 , the material distribution mechanism 6 includes a mounting plate 601 , both ends of which are fixed to the top wall and side wall of the magnetic separation box 1 , and the mounting plate 601 is parallel to the material discharge channel 5 , and two material discharge ports 602 are provided on the mounting plate 601 , and a first material discharge plate 603 and a second material discharge plate 604 are rotatably installed in the two material discharge ports 602 , one end of the first material discharge plate 603 and the second material discharge plate 604 are located above the main magnetic separation cylinder 7 , and the bottoms of the first material discharge plate 603 and the second material discharge plate 604 are both connected to a first arc spring 605 , one end of the first arc spring 605 is connected to the mounting plate 601 , and a plurality of sieve holes 606 are arranged in an array on the first material discharge plate 603 ; the mineral powder will first fall on the first material discharge plate 603 , and the first material discharge plate 603 is provided with a plurality of sieve holes 606 There is a sieve hole 606, and part of the mineral powder falls onto the second discharge plate 604 through the sieve hole 606, so as to prevent a large amount of mineral powder from falling on the main magnetic separation cylinder 7 at the same time and affecting the magnetic separation effect. In addition, one end of the first discharge plate 603 and the second discharge plate 604 is close to the main magnetic separation cylinder 7, and one end of the first discharge plate 603 and the second discharge plate 604 does not contact the main magnetic separation cylinder 7 but will contact the dividing bar 9. When the main magnetic separation cylinder 7 rotates, the dividing bar 9 contacts the first discharge plate 603 and the second discharge plate 604, which can drive the first discharge plate 603 and the second discharge plate 604 to shake. On the one hand, it can speed up the discharge and avoid blockage, and shake off the mineral powder on the first discharge plate 603 and the second discharge plate 604 to make the mineral powder evenly distributed. On the other hand, it can also scrape the mineral powder on the main magnetic separation cylinder 7 flat, thereby improving the magnetic separation effect.

[0031] 4 , a baffle 607 is fixed above the end of the first and second blanking plates 603 and 604 away from the main magnetic separator 7 , and two supporting mechanisms are fixed on the side wall of the mounting plate 601 away from the first arc spring 605 . The two supporting structures are respectively located below the first and second blanking plates 603 and 604 . The supporting structure includes two L-shaped support rods 608 , and a support wheel 609 is installed at one end of the L-shaped support rod 608 . A first arc spring 605 is provided to support one end of the first and second blanking plates 603 and 604 to prevent the first and second blanking plates 603 and 604 from tilting too much to the left when the mineral powder falls. At the same time, in conjunction with the supporting mechanism, when no material is added, the first and second blanking plates 603 and 604 are kept as vertical as possible to the blanking channel 5 , and the baffle 607 can prevent the mineral powder from falling from the left side.

[0032] 5 and 6, a cavity is provided inside the main magnetic separator 7, a mounting shaft 701 is fixed inside the main magnetic separator 7, and a plurality of knocking mechanisms are installed on the side wall of the mounting shaft 701. The knocking mechanism includes two sleeves 702, one end of the sleeve 702 is fixed on the mounting shaft 701, and the other end of the sleeve 702 is provided with an opening, and a movable rod 703 is movably provided in the opening. A knocking rod 704 is fixed to one end of the two movable rods 703. The movable rod 703 is away from the knocking rod 704. A limit block 705 is provided at one end; when the main magnetic separation cylinder 7 rotates, due to the action of gravity, when the movable rod 703 and the knocking rod 704 rotate to the highest point of the main magnetic separation cylinder 7, the movable rod 703 will completely enter the sleeve 702. As the main magnetic separation cylinder 7 rotates clockwise, the movable rod 703 and the knocking rod 704 will gradually slide out of the sleeve 702, knocking the inner wall of the main magnetic separation cylinder 7, thereby shaking off some non-magnetic materials mixed in the magnetic separation material, thereby improving the accuracy of magnetic separation.

[0033] Referring to Figures 3 and 7, a discharge port 14 is provided on one side wall of the magnetic separation box 1, and a first scraper 15 is fixed in the discharge port 14. One end of the first scraper 15 contacts the secondary magnetic separation cylinder 8. Two mounting blocks 11 are symmetrically installed on the inner surface of the side wall of the magnetic separation box 1 away from the discharge port 14. A second scraper 12 is rotatably installed between the two mounting blocks 11. One end of the second scraper 12 contacts the main magnetic separation cylinder 7. A second arc spring 13 is connected to the upper surface of the second scraper 12, and one end of the second arc spring 13 is connected to the inner wall of the magnetic separation box 1; when the main magnetic separation cylinder 7 and the secondary magnetic separation cylinder 8 rotate, the first scraper 15 can scrape off the magnetic separation material adsorbed by the secondary magnetic separation cylinder 8, and the second scraper 12 can rotate. Under the action of the second arc spring 13, the second scraper 12 always contacts the surface of the main magnetic separation cylinder 7, so as to scrape off the magnetic separation material adsorbed on the main magnetic separation cylinder 7.

[0034] Referring to Figure 3, a first collecting box 16 is fixed on one side wall of the magnetic separation box 1. The first collecting box 16 is located below the first scraper plate 15. A second collecting box 17 and a third collecting box 18 are provided on the inner surface of the bottom wall of the magnetic separation box 1. The tops of the first collecting box 16, the second collecting box 17 and the third collecting box 18 are all provided with openings; the second collecting box 17 is located below the secondary magnetic separation cylinder 8, and the third collecting box 18 is located below the main magnetic separation cylinder 7. The magnetic separation material adsorbed on the secondary magnetic separation cylinder 8 enters the first collecting box 16 along the first scraper plate 15, and the non-magnetic material falls into the second collecting box 18. The magnetic separation material adsorbed on the main magnetic separation cylinder 7 enters the third collecting box 18 under the action of the second scraper plate 12 and is collected separately for later recovery and treatment.

[0035] The working principle of the present invention is as follows: the mineral powder to be magnetically separated is added into the discharge hopper 4, and then sent into the magnetic separation box 1 through the discharge channel 5. The discharge channel 5 is a rectangular structure. The mineral powder falls on the material distribution mechanism 6. The mineral powder will first fall on the first discharge plate 603. The first discharge plate 603 is provided with a sieve hole 606. Part of the mineral powder passes through the sieve hole 606 and falls on the second discharge plate 604 to avoid a large amount of mineral powder falling on the main magnetic separation drum 7 at the same time to affect the magnetic separation effect. The main magnetic separation drum 7 is provided with multiple partition bars 9. A receiving groove is formed between the adjacent partition bars 9 and the main magnetic separation drum 7, which can be placed. A fixed amount of mineral powder is magnetically adsorbed on the main magnetic separation drum 7. The driving mechanism 10 drives the main magnetic separation drum 7 and the secondary magnetic separation drum 8 to rotate synchronously, and the rotation direction is clockwise. Since the mineral powder accumulates on the side wall of the main magnetic separation drum 7, some materials with weaker magnetism may not be completely adsorbed by the main magnetic separation drum 7. Some magnetic materials are located outside and cannot be completely adsorbed either. When the main magnetic separation drum 7 and the secondary magnetic separation drum 8 rotate, these magnetic materials with weaker magnetism or located outside can be adsorbed by the secondary magnetic separation drum 8, which can ensure that the magnetic mineral powder is completely adsorbed and the magnetic separation effect is guaranteed.

[0036] Since one end of the first blanking plate 603 and the second blanking plate 604 are close to the main magnetic separation drum 7, one end of the first blanking plate 603 and the second blanking plate 604 does not contact the main magnetic separation drum 7 but contacts the dividing bar 9. When the main magnetic separation drum 7 rotates, the dividing bar 9 contacts the first blanking plate 603 and the second blanking plate 604, and cooperates with the first arc spring 605 to drive the first blanking plate 603 and the second blanking plate 604 to shake. On the one hand, it can speed up the blanking and avoid blockage, and shake off the mineral powder on the first blanking plate 603 and the second blanking plate 604 to make the mineral powder evenly distributed. On the other hand, it can also scrape the mineral powder in the receiving tank flat, thereby improving the magnetic separation effect.

[0037] When the main magnetic separation cylinder 7 and the secondary magnetic separation cylinder 8 rotate, the first scraper plate 15 can scrape off the magnetic separation material adsorbed by the secondary magnetic separation cylinder 8, and the second scraper plate 12 can rotate. Under the action of the second arc spring 13, the second scraper plate 12 is always in contact with the surface of the main magnetic separation cylinder 7, and the magnetic separation material adsorbed on the main magnetic separation cylinder 7 can be scraped off. At the same time, due to the action of gravity, when the movable rod 703 and the knocking rod 704 rotate to the highest point of the main magnetic separation cylinder 7, the movable rod 703 will completely enter the sleeve 702, and as the main magnetic separation cylinder 7 rotates clockwise, the movable rod 703 and the knocking rod 704 will completely enter the sleeve 702. The moving rod 703 and the knocking rod 704 will gradually slide out of the sleeve 702 and knock the inner wall of the main magnetic separation cylinder 7, thereby shaking off some non-magnetic materials mixed in the magnetic separation material, improving the accuracy of magnetic separation and facilitating collection. The magnetic separation material adsorbed on the secondary magnetic separation cylinder 8 enters the first collection box 16 along the first scraper plate 15, and the non-magnetic material falls into the second collection box 18. The magnetic separation material adsorbed on the main magnetic separation cylinder 7 enters the third collection box 18 under the action of the second scraper plate 12 and is collected separately for later recovery and processing.

[0038] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A magnetic separator for a magnetite powder production process, comprising a magnetic separation box (1), wherein the side wall of the magnetic separation box (1) is provided with an opening, and a box door (2) is hinged at the opening, and an observation window (3) is provided on the box door (2), characterized in that: The magnetic separation box (1) is provided with a material discharge channel (5) at an angle, a material discharge hopper (4) is fixed on the top of the material discharge channel (5), a material distribution mechanism (6) is provided inside the magnetic separation box (1), a main magnetic separation cylinder (7) and a secondary magnetic separation cylinder (8) are rotatably installed inside the magnetic separation box (1), a plurality of dividing strips (9) are evenly arranged on the side wall of the main magnetic separation cylinder (7) along the circumferential direction, and a driving mechanism (10) is installed on the side wall of the magnetic separation box (1) away from the box door (2), for driving the main magnetic separation cylinder (7) and the secondary magnetic separation cylinder (8) to rotate synchronously.

2. A magnetic separator for magnetite powder production process according to claim 1, characterized in that: The driving mechanism (10) comprises a motor mounting seat, the motor mounting seat is fixed on the side wall of the magnetic separation box (1), a motor is mounted on the motor mounting seat, one end of the rotating shafts of the primary magnetic separation cylinder (7) and the secondary magnetic separation cylinder (8) both pass through the side wall of the magnetic separation box (1), a secondary belt pulley is mounted on one end of the rotating shaft of the primary magnetic separation cylinder (7), a primary belt pulley is mounted on one end of the rotating shaft of the secondary magnetic separation cylinder (8), a belt is connected between the secondary belt pulley and the primary belt pulley, and the output shaft of the motor is fixedly connected to the secondary magnetic separation cylinder (8).

3. The magnetic separator for magnetite powder production process according to claim 1, characterized in that: The material distribution mechanism (6) comprises a mounting plate (601), the two ends of which are respectively fixed on the top wall and the side wall of the magnetic separation box (1), and the mounting plate (601) is parallel to the material discharge channel (5). The mounting plate (601) is provided with two material discharge ports (602), and a first material discharge plate (603) and a second material discharge plate (604) are rotatably installed in the two material discharge ports (602), one end of the first material discharge plate (603) and the second material discharge plate (604) are located above the main magnetic separation cylinder (7), and the bottoms of the first material discharge plate (603) and the second material discharge plate (604) are both connected to a first arc spring (605), one end of the first arc spring (605) is connected to the mounting plate (601), and a plurality of sieve holes (606) are arranged in an array on the first material discharge plate (603).

4. A magnetic separator for magnetite powder production process according to claim 3, characterized in that: A baffle (607) is fixed above one end of the first unloading plate (603) and the second unloading plate (604) away from the main magnetic separation cylinder (7), and two supporting mechanisms are fixed on the side wall of the mounting plate (601) away from the first arc spring (605), and the two supporting structures are respectively located below the first unloading plate (603) and the second unloading plate (604), and the supporting structure includes two L-shaped support rods (608), and a support wheel (609) is installed at one end of the L-shaped support rod (608).

5. The magnetic separator for magnetite powder production process according to claim 1, characterized in that: A cavity is provided inside the main magnetic separation cylinder (7), a mounting shaft (701) is fixed inside the main magnetic separation cylinder (7), a plurality of knocking mechanisms are installed on the side wall of the mounting shaft (701), the knocking mechanisms comprising two sleeves (702), one end of each sleeve (702) being fixed on the mounting shaft (701), the other end of each sleeve (702) being provided with an opening, a movable rod (703) being movably provided in the opening, a knocking rod (704) being fixed to one end of the two movable rods (703), and a limit block (705) being provided at one end of each movable rod (703) away from the knocking rod (704).

6. The magnetic separator for magnetite powder production process according to claim 1, characterized in that: A discharge port (14) is provided on one side wall of the magnetic separation box (1), a first scraper plate (15) is fixed inside the discharge port (14), one end of the first scraper plate (15) contacts the secondary magnetic separation cylinder (8), two mounting blocks (11) are symmetrically mounted on the inner surface of the side wall of the magnetic separation box (1) away from the discharge port (14), a second scraper plate (12) is rotatably mounted between the two mounting blocks (11), one end of the second scraper plate (12) contacts the primary magnetic separation cylinder (7), a second arc spring (13) is connected to the upper surface of the second scraper plate (12), one end of the second arc spring (13) is connected to the inner wall of the magnetic separation box (1).

7. A magnetic separator for magnetite powder production process according to claim 6, characterized in that: A first collecting box (16) is fixed on one side wall of the magnetic separation box (1), and the first collecting box (16) is located below the first scraper plate (15). A second collecting box (17) and a third collecting box (18) are arranged on the inner surface of the bottom wall of the magnetic separation box (1), and the tops of the first collecting box (16), the second collecting box (17) and the third collecting box (18) are all opened.

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