Magnesite raw material magnetic separation screening process and equipment

Abstract

The invention relates to the technical field of magnesite raw materials, and discloses a magnesite raw material magnetic separation screening process and equipment. The method comprises the following steps: S1, pretreatment: crushing a magnesite raw material until the particle size is less than 10mm, and carrying out preliminary screening through a vibrating screen to remove large-particle impurities; by arranging the driving mechanism, crushed magnesite raw materials are poured into the feeding box, then the magnesite raw materials enter the machine shell from the feeding box, meanwhile, a motor is started, the motor drives a first transmission gear to rotate, and then the first transmission gear drives a second transmission gear and a magnetic roller to rotate through a chain; when the magnetic suction roller rotates, magnetic minerals in magnesite raw materials can be adsorbed to the surface of the magnetic suction roller, meanwhile, in the rotating process, the scraper above the discharging box can scrape off the magnetic minerals, then the magnetic minerals are discharged out of the discharging box, effective separation of the magnetic minerals and non-magnetic minerals is achieved, and the screening efficiency is effectively improved.

Description

Technical Field

[0001] This invention relates to the field of magnesite raw material technology, specifically to a magnetic separation and screening process and equipment for magnesite raw materials. Background Technology

[0002] Magnesite crystals are carbonate minerals belonging to the trigonal crystal system. They usually occur in granular or cryptocrystalline massive form, the latter also known as porcelain magnesite. They are white or grayish-white, while those containing iron are yellow to brown, and have a vitreous luster. Magnesite is mainly composed of MgCO3, and iron and manganese often substitute for magnesium, but the iron content of natural magnesite is generally not high.

[0003] A search revealed a Chinese patent document disclosing a multi-stage screening device for magnesite raw materials [Announcement No.: CN219850087U]. This device includes a main body for multi-stage screening of magnesite raw materials. A dust collector and a motor are mounted on the rear side of the main body. One end of the dust collector is connected to a crushing box, a feeding box, and a third collection box inside the main body via several air guide pipes. A rotating shaft is mounted inside the other end of the dust collector via a bracket. In this invention, the end of the dust collector furthest from the fan blades is under negative pressure. This negative pressure draws in turbid gas containing dust from the corresponding components inside the main body through the air guide pipes. The dust in the gas is filtered by the dust filter plate. This achieves the effect of removing dust generated during the multi-stage screening of magnesite raw materials, thus preventing dust from spreading to the outside environment and causing adverse effects on human health.

[0004] Existing magnesite beneficiation technologies suffer from low efficiency, high energy consumption, and insufficient beneficiation accuracy. Traditional processes, which rely on single magnetic separation or screening, struggle to effectively separate magnetic and non-magnetic minerals, leading to resource waste and environmental pollution. To address this problem, we propose a magnetic separation and screening process and equipment for magnesite raw materials. Summary of the Invention

[0005] The purpose of this invention is to provide a magnetic separation and screening process and equipment for magnesite raw materials to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a magnetic separation and screening process for magnesite raw materials, comprising the following steps; S1: Pre-treatment, crushing the magnesite raw material to a particle size of less than 10mm, and performing preliminary screening through a vibrating screen to remove large particle impurities; S2: A magnetic separator with a magnetic field strength of 0.8 to 1.2T is used to perform primary magnetic separation on the screened material to separate magnetic minerals; S3: Screening stage, the magnetically separated material is fed into a high-frequency vibrating screen, and the screen aperture is adjusted according to the target particle size to achieve multi-stage screening; S4: Perform secondary magnetic separation on the sieved fine powder with a magnetic field strength of 1.0 to 1.1T to further improve the separation accuracy; S5: Intelligent control, based on online detection data, dynamically adjusts the magnetic field strength and screening parameters to achieve adaptive sorting.

[0007] Preferably, the magnetic separator includes a casing and a magnetic roller for collecting magnetic minerals. The magnetic roller is rotatably connected to the inside of the casing. A feeding box is fixedly installed on one side of the casing, and a discharging box is fixedly installed on the other side of the casing. A drive mechanism is provided on one side of the casing. The drive mechanism includes a motor fixedly mounted on one side of the housing. The output end of the motor is fixedly connected to a first transmission gear. One side of the first transmission gear is connected to a second transmission gear via a chain drive. One side of the second transmission gear is fixedly connected to one side of the magnetic roller. A dispersing mechanism, which is movably mounted on the housing; A vibration mechanism, which is fixedly mounted on the feeding box; A guiding mechanism is fixedly mounted on the vibration mechanism.

[0008] Preferably, the dispersing mechanism includes a linkage plate disposed inside the housing, five arc-shaped frames are fixedly connected to the bottom of the linkage plate, and several dispersing rods are fixedly connected to the bottom of the arc-shaped frames. A rotating rod is fixedly connected to one side of the magnetic roller, and a first pulley is fixedly connected to one end of the rotating rod. A double-groove pulley is connected to one side of the first pulley via belt drive. A lead screw is fixedly connected to one side of the double-groove pulley. A transmission block is connected to the surface of the lead screw. Two transmission rods are fixedly connected to one side of the transmission block. One end of the transmission rod penetrates into the interior of the machine housing and is fixedly connected to one side of the linkage plate.

[0009] Preferably, the vibration mechanism includes a striking block disposed on one side of the feeding box, a support plate fixedly connected to one side of the striking block, two tension springs fixedly connected to one side of the feeding box, one end of the tension springs fixedly connected to one side of the support plate, a pressing block fixedly connected to one side of the support plate, a cam disposed on one side of the pressing block, one side of the cam being rotatably connected to one side of the machine housing via a rotating shaft, a connecting rod fixedly connected to the other side of the cam, a second pulley fixedly connected to one end of the connecting rod, and the second pulley being connected to a double-groove pulley via belt drive.

[0010] Preferably, the guiding mechanism includes a guide plate disposed inside the housing, the top of which is hinged to the bottom of the feeding box via a hinge; A traction frame is fixedly connected to the bottom of the support plate, and two traction rods are fixedly connected to one side of the traction frame. One end of the traction rod extends into the interior of the housing, and the traction rod is hinged to the guide plate.

[0011] Preferably, a partition plate is fixedly connected to one side of the guide plate, and the number of partition plates is several.

[0012] Preferably, two sliding rods are fixedly connected to one side of the feeding box, and a sliding hole is provided on one side of the support plate to cooperate with the sliding rods.

[0013] Preferably, the striking block is located at the center of one side of the support plate and is cone-shaped.

[0014] Preferably, one end of the lead screw is provided with a bearing, and is rotatably connected to one side of the housing through the bearing.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention utilizes a drive mechanism to feed crushed magnesite raw material into a feeding box. The magnesite raw material then enters the machine casing from the feeding box. Simultaneously, the motor is started, which drives the first transmission gear to rotate. The first transmission gear then drives the second transmission gear and the magnetic roller to rotate via a chain. As the magnetic roller rotates, the magnetic minerals in the magnesite raw material are attracted to the surface of the magnetic roller. During the rotation, a scraper above the feeding box scrapes off the magnetic minerals, which are then discharged from the feeding box. This achieves effective separation of magnetic and non-magnetic minerals, effectively improving screening efficiency. This invention employs a dispersing mechanism. When the magnetic roller rotates, it drives the rotating rod and the first pulley to rotate. The first pulley, in turn, drives the double-groove pulley via a belt. The double-groove pulley then drives the lead screw to rotate around the bearing. Simultaneously, the lead screw drives the transmission block, causing it to reciprocate left and right. The transmission rod, linkage plate, arc frame, and dispersing rod also reciprocate left and right synchronously with the transmission block. When the dispersing rod comes into contact with the magnesite raw material, it disperses the magnesite, preventing its accumulation. This allows the magnetic roller to effectively adsorb the magnetic ore inside, thereby improving the screening effect. This invention incorporates a vibration mechanism. When the double-groove pulley rotates, it drives the second pulley to rotate via a belt. The second pulley then drives the connecting rod and cam to rotate around the axis. When the cam rotates to the point where its protruding end contacts the extrusion block, it is subjected to extrusion, causing the extrusion block to move the support plate away from the feed hopper. When the cam rotates to the point where it no longer contacts the extrusion block, the tension generated by the tension spring causes the support plate and the striking block to reset, causing the striking block to strike the feed box and generate vibration. This cycle repeats, and the intermittent vibration improves the flowability of the magnesite raw material, preventing blockage and thus effectively improving the screening effect. This invention incorporates a guiding mechanism. When the support plate moves back and forth, it drives the traction frame to move back and forth as well. The traction rod also moves back and forth with the traction frame. Simultaneously, the traction rod pushes the guide plate to swing around the hinge joint. When the magnesite raw material falls onto the guide plate, the landing point of the magnesite raw material is continuously changed, further preventing the accumulation of magnesite raw material and improving the efficiency of subsequent screening. Attached Figure Description

[0016] Figure 1 This is a flowchart of the process in this invention; Figure 2 This is a schematic diagram of the three-dimensional structure in this invention; Figure 3 This is a perspective view from the side in this invention; Figure 4 This is a perspective view taken in cross-section in this invention; Figure 5 This is a perspective view of the side section in this invention; Figure 6 This is a perspective view of a partial structure in this invention; Figure 7 This is a perspective view of the dispersing mechanism in this invention; Figure 8 This is a perspective view of the vibration mechanism in this invention; Figure 9 This is a perspective view of a partial structure in this invention, viewed from below.

[0017] In the diagram: 1. Magnetic separator; 2. Magnetic roller; 3. Feeding box; 4. Discharging box; 5. Motor; 6. First transmission gear; 7. Second transmission gear; 8. Linkage plate; 9. Arc frame; 10. Dispersing rod; 11. Rotating rod; 12. First pulley; 13. Double groove pulley; 14. Lead screw; 15. Transmission block; 16. Transmission rod; 17. Striking block; 18. Support plate; 19. Tension spring; 20. Extrusion block; 21. Cam; 22. Connecting rod; 23. Second pulley; 24. Guide plate; 25. Traction frame; 26. Traction rod; 27. Separator plate; 28. Sliding rod; 29. ​​Sliding hole; 30. Bearing; 31. Machine casing. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 - Figure 9 As shown, Example 1: A magnetic separation and screening process for magnesite raw materials includes the following steps; S1: Pre-treatment, crushing the magnesite raw material to a particle size of less than 10mm, and performing preliminary screening through a vibrating screen to remove large particle impurities; S2: Magnetic separator 1 with a magnetic field strength of 0.8-1.2T is used to perform primary magnetic separation on the screened material to separate magnetic minerals; S3: Screening stage, the magnetically separated material is fed into a high-frequency vibrating screen, and the screen aperture is adjusted according to the target particle size to achieve multi-stage screening; S4: Perform secondary magnetic separation on the sieved fine powder with a magnetic field strength of 1.0 to 1.1T to further improve the separation accuracy; S5: Intelligent control, based on online detection data, dynamically adjusts the magnetic field strength and screening parameters to achieve adaptive sorting.

[0020] The magnetic separator 1 includes a housing 31 and a magnetic roller 2 for collecting magnetic minerals. The magnetic roller 2 is rotatably connected to the inside of the housing 31. A feeding box 3 is fixedly installed on one side of the housing 31, and a discharging box 4 is fixedly installed on the other side of the housing 31. A drive mechanism is provided on one side of the housing 31. The drive mechanism includes a motor 5 fixedly installed on one side of the housing 31. The output end of the motor 5 is fixedly connected to a first transmission gear 6. A second transmission gear 7 is connected to one side of the first transmission gear 6 via a chain drive. One side of the second transmission gear 7 is fixedly connected to one side of the magnetic roller 2. A distribution mechanism is movably mounted on the housing 31. Vibration mechanism, which is fixedly mounted on the feeding box 3; The guiding mechanism is fixedly mounted on the vibration mechanism.

[0021] In this embodiment, a drive mechanism is set up so that the crushed magnesite raw material is poured into the feeding box 3, and then the magnesite raw material enters the machine casing 31 from the feeding box 3. At the same time, the motor 5 is started, and the motor 5 drives the first transmission gear 6 to rotate. Then, the first transmission gear 6 drives the second transmission gear 7 and the magnetic roller to rotate through the chain. As the magnetic roller 2 rotates, the magnetic minerals in the magnesite raw material are attracted to the surface of the magnetic roller 2. At the same time, during the rotation, the scraper above the feeding box 4 scrapes off the magnetic minerals and discharges them from the feeding box 4, realizing the effective separation of magnetic minerals and non-magnetic minerals and effectively improving the screening efficiency.

[0022] The dispersing mechanism includes a linkage plate 8 disposed inside the housing 31. Five arc-shaped frames 9 are fixedly connected to the bottom of the linkage plate 8, and several dispersing rods 10 are fixedly connected to the bottom of the arc-shaped frames 9. A rotating rod 11 is fixedly connected to one side of the magnetic roller 2. A first pulley 12 is fixedly connected to one end of the rotating rod 11. A double groove pulley 13 is connected to one side of the first pulley 12 via belt drive. A lead screw 14 is fixedly connected to one side of the double groove pulley 13. A transmission block 15 is connected to the surface of the lead screw 14. Two transmission rods 16 are fixedly connected to one side of the transmission block 15. One end of the transmission rod 16 penetrates into the interior of the housing 31 and is fixedly connected to one side of the linkage plate 8.

[0023] In this implementation, considering that magnesite raw materials are prone to accumulation after entering the casing 31, some magnetic minerals at the bottom cannot be effectively adsorbed by the magnetic roller 2, thus affecting the screening efficiency, a dispersion mechanism is set up. When the magnetic roller 2 rotates, it drives the rotating rod 11 and the first pulley 12 to rotate. The first pulley 12 rotates and drives the double groove pulley 13 to rotate via the belt. Then, the double groove pulley 13 drives the lead screw 14 to rotate around the bearing 30. When the lead screw 14 rotates, it drives the transmission block 15 to move back and forth. The transmission rod 16, the linkage plate 8, the arc frame 9, and the dispersion rod 10 also move back and forth synchronously with the transmission block 15. When the dispersion rod 10 comes into contact with the magnesite raw materials, it disperses them, preventing the magnesite raw materials from accumulating. This allows the magnetic roller 2 to effectively adsorb the magnetic minerals inside, thereby improving the screening effect.

[0024] One end of the lead screw 14 is provided with a bearing 30, and is rotatably connected to one side of the housing 31 through the bearing 30.

[0025] In this embodiment, by setting the bearing 30, the screw 14 and other structures can be supported, while restricting them to rotate only around the bearing 30, thus improving the smoothness of their rotation.

[0026] Example 2: Based on Embodiment 1, the dispersion mechanism in this embodiment can prevent magnesite raw material from accumulating inside the casing 31, thereby improving the screening effect. However, considering that the magnesite raw material itself has poor fluidity, it is also prone to blockage when falling from the feeding box 3, which will also affect the screening effect. In this application, the vibration mechanism includes a striking block 17 disposed on one side of the feeding box 3. A support plate 18 is fixedly connected to one side of the striking block 17. Two tension springs 19 are fixedly connected to one side of the feeding box 3. One end of the tension spring 19 is fixedly connected to one side of the support plate 18. A pressing block 20 is fixedly connected to one side of the support plate 18. A cam 21 is disposed on one side of the pressing block 20. One side of the cam 21 is rotatably connected to one side of the casing 31 through a rotating shaft. A connecting rod 22 is fixedly connected to the other side of the cam 21. A second pulley 23 is fixedly connected to one end of the connecting rod 22. The second pulley 23 and the double groove pulley 13 are connected by belt drive.

[0027] In this embodiment, a vibration mechanism is set up. When the double-groove pulley 13 rotates, it will drive the second pulley 23 to rotate via the belt. The second pulley 23 will drive the connecting rod 22 and the cam 21 to rotate around the rotating shaft. When the cam 21 rotates to the point where its protruding end contacts the extrusion block 20, it will be affected by the extrusion. The extrusion block 20 will drive the support plate 18 to move away from the feeding hopper. When the cam 21 rotates to the point where it does not contact the extrusion block 20, the tension generated by the tension spring 19 will drive the support plate 18 and the striking block 17 to reset, so that the striking block 17 will hit the feeding box 3 to generate vibration. This cycle is repeated. The intermittent vibration improves the fluidity of the magnesite raw material, avoids clogging, and thus effectively improves the screening effect.

[0028] Two sliding rods 28 are fixedly connected to one side of the feeding box 3, and a sliding hole 29 is provided on one side of the support plate 18 to cooperate with the sliding rods 28.

[0029] In this embodiment, by setting the sliding rod 28 and the sliding hole 29, the movement trajectory of the support plate 18 and other structures can be restricted, so that they can only move horizontally under the restriction of the sliding rod 28 and the sliding hole 29, while improving their stability during the movement process.

[0030] The striking block 17 is located at the center of one side of the support plate 18 and is cone-shaped.

[0031] In this embodiment, by setting a striking block 17, the conical design of the striking block 17 can effectively increase the vibration force generated during impact. At the same time, it is located at the center of the support plate 18, which is exactly opposite to the position of the feeding box 3, so that the vibration force can be distributed more evenly.

[0032] Example 3: The guiding mechanism includes a guide plate 24 disposed inside the housing 31, and the top of the guide plate 24 is hinged to the bottom of the feeding box 3 via a hinge. A traction frame 25 is fixedly connected to the bottom of the support plate 18. Two traction rods 26 are fixedly connected to one side of the traction frame 25. One end of the traction rod 26 extends into the interior of the housing 31. The traction rod 26 is hinged to the guide plate 24.

[0033] In this implementation, a guiding mechanism is set up so that when the support plate 18 moves back and forth, it will drive the traction frame 25 to move back and forth. The traction rod 26 will also move back and forth with the traction frame 25. At the same time, the traction rod 26 will push the guide plate 24 to swing around the hinge joint. When the magnesite raw material falls on the guide plate 24, the landing point of the magnesite raw material will be continuously changed, further avoiding the accumulation of magnesite raw material and improving the efficiency of subsequent screening.

[0034] A partition plate 27 is fixedly connected to one side of the guide plate 24, and there are several partition plates 27.

[0035] In this implementation, by setting up a partition plate 27, when the magnesite raw material falls onto the partition plate 27, it will be separated by the partition plate 27, thus avoiding the accumulation of the material during its fall.

[0036] The working principle and usage process of this invention are as follows: The crushed magnesite raw material is poured into the feeding box 3, and then the magnesite raw material enters the machine casing 31 through the feeding box 3. At the same time, the motor 5 is started, and the motor 5 drives the first transmission gear 6 to rotate. Then, the first transmission gear 6 drives the second transmission gear 7 and the magnetic roller to rotate through the chain. While the magnetic roller 2 is rotating, the magnetic minerals in the magnesite raw material will be attracted to the surface of the magnetic roller 2. At the same time, during the rotation, the scraper above the feeding box 4 will scrape off the magnetic minerals and discharge them from the feeding box 4, thereby achieving effective separation of magnetic minerals and non-magnetic minerals and effectively improving the screening efficiency. When the magnetic roller 2 rotates, it drives the rotating rod 11 and the first pulley 12 to rotate. The first pulley 12 rotates and drives the double groove pulley 13 to rotate via the belt. Then, the double groove pulley 13 drives the lead screw 14 to rotate around the bearing 30. When the lead screw 14 rotates, it drives the transmission block 15 to move back and forth. The transmission rod 16, the linkage plate 8, the arc frame 9 and the dispersing rod 10 also move back and forth synchronously with the transmission block 15. When the dispersing rod 10 comes into contact with the magnesite raw material, it disperses it to prevent the magnesite raw material from accumulating. This allows the magnetic roller 2 to effectively adsorb the magnetic ore inside, thereby improving the screening effect. When the double-groove pulley 13 rotates, it drives the second pulley 23 to rotate via the belt. The second pulley 23 drives the connecting rod 22 and the cam 21 to rotate around the shaft. When the cam 21 rotates to the point where its protruding end contacts the extrusion block 20, it is affected by the extrusion. The extrusion block 20 will drive the support plate 18 to move away from the feed hopper. When the cam 21 rotates to the point where it does not contact the extrusion block 20, the tension generated by the tension spring 19 will drive the support plate 18 and the striking block 17 to reset, causing the striking block 17 to strike the feed box 3 and generate vibration. This cycle repeats, and the intermittent vibration improves the fluidity of the magnesite raw material, avoids clogging, and thus effectively improves the screening effect. When the support plate 18 moves back and forth, it drives the traction frame 25 to move back and forth as well. The traction rod 26 also moves back and forth with the traction frame 25. At the same time, the traction rod 26 pushes the guide plate 24 to swing around the hinge joint. When the magnesite raw material falls on the guide plate 24, it will continuously change the landing point of the magnesite raw material, further avoiding the accumulation of magnesite raw material and improving the efficiency of subsequent screening.

[0037] It should be noted that the magnetic separator 1 and the motor 5 are existing devices or equipment, or devices or equipment that can be implemented with existing technology. The specific composition and principle of the power supply of the magnetic separator 1 and the motor 5 are clear to those skilled in the art, so they will not be described in detail here.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0039] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic separation and screening process for magnesite raw materials, characterized in that: Includes the following steps; S1: Pre-treatment, crushing the magnesite raw material to a particle size of less than 10mm, and performing preliminary screening through a vibrating screen to remove large particle impurities; S2: A magnetic separator with a magnetic field strength of 0.8 to 1.2T is used to perform primary magnetic separation on the screened material to separate magnetic minerals; S3: Screening stage, the magnetically separated material is fed into a high-frequency vibrating screen, and the screen mesh size is adjusted according to the target particle size to achieve multi-stage screening; S4: Perform secondary magnetic separation on the sieved fine powder with a magnetic field strength of 1.0 to 1.1T to further improve the separation accuracy; S5: Intelligent control, based on online detection data, dynamically adjusts the magnetic field strength and screening parameters to achieve adaptive sorting.

2. The magnetic separation and screening equipment for magnesite raw materials according to claim 1, characterized in that: The magnetic separator (1) includes a housing (31) and a magnetic roller (2) for collecting magnetic minerals. The magnetic roller (2) is rotatably connected to the inside of the housing (31). A feeding box (3) is fixedly installed on one side of the housing (31), and a discharging box (4) is fixedly installed on the other side of the housing (31). A driving mechanism is provided on one side of the housing (31). The drive mechanism includes a motor (5) fixedly installed on one side of the housing (31). The output end of the motor (5) is fixedly connected to a first transmission gear (6). One side of the first transmission gear (6) is connected to a second transmission gear (7) via a chain drive. One side of the second transmission gear (7) is fixedly connected to one side of the magnetic roller (2). A dispersing mechanism, which is movably mounted on the housing (31); A vibration mechanism is fixedly mounted on the feeding box (3); A guiding mechanism is fixedly mounted on the vibration mechanism.

3. The magnetic separation and screening equipment for magnesite raw materials according to claim 1, characterized in that: The dispersing mechanism includes a linkage plate (8) disposed inside the housing (31), five arc-shaped frames (9) are fixedly connected to the bottom of the linkage plate (8), and several dispersing rods (10) are fixedly connected to the bottom of the arc-shaped frames (9). A rotating rod (11) is fixedly connected to one side of the magnetic roller (2). A first pulley (12) is fixedly connected to one end of the rotating rod (11). A double groove pulley (13) is connected to one side of the first pulley (12) via belt drive. A lead screw (14) is fixedly connected to one side of the double groove pulley (13). A transmission block (15) is connected to the surface of the lead screw (14). Two transmission rods (16) are fixedly connected to one side of the transmission block (15). One end of the transmission rod (16) penetrates into the interior of the housing (31) and is fixedly connected to one side of the linkage plate (8).

4. The magnetic separation and screening equipment for magnesite raw materials according to claim 3, characterized in that: The vibration mechanism includes a striking block (17) disposed on one side of the feeding box (3). A support plate (18) is fixedly connected to one side of the striking block (17). Two tension springs (19) are fixedly connected to one side of the feeding box (3). One end of the tension spring (19) is fixedly connected to one side of the support plate (18). A pressing block (20) is fixedly connected to one side of the support plate (18). A cam (21) is disposed on one side of the pressing block (20). One side of the cam (21) is rotatably connected to one side of the housing (31) through a rotating shaft. A connecting rod (22) is fixedly connected to the other side of the cam (21). A second pulley (23) is fixedly connected to one end of the connecting rod (22). The second pulley (23) and the double groove pulley (13) are connected by belt drive.

5. The magnetic separation and screening equipment for magnesite raw materials according to claim 4, characterized in that: The guiding mechanism includes a guide plate (24) disposed inside the housing (31), and the top of the guide plate (24) is hinged to the bottom of the feeding box (3) via a hinge; The bottom of the support plate (18) is fixedly connected to a traction frame (25), and two traction rods (26) are fixedly connected to one side of the traction frame (25). One end of the traction rod (26) extends into the interior of the housing (31), and the traction rod (26) is hinged to the guide plate (24).

6. The magnetic separation and screening equipment for magnesite raw materials according to claim 5, characterized in that: A partition plate (27) is fixedly connected to one side of the guide plate (24), and the number of partition plates (27) is several.

7. The magnetic separation and screening equipment for magnesite raw materials according to claim 4, characterized in that: Two sliding rods (28) are fixedly connected to one side of the feeding box (3), and a sliding hole (29) is provided on one side of the support plate (18) to cooperate with the sliding rods (28).

8. The magnetic separation and screening equipment for magnesite raw materials according to claim 4, characterized in that: The striking block (17) is located at the center of one side of the support plate (18) and is cone-shaped.

9. A magnetic separation and screening device for magnesite raw materials according to claim 3, characterized in that: One end of the lead screw (14) is provided with a bearing (30), and is rotatably connected to one side of the housing (31) through the bearing (30).

Images