A mineral multi-stage magnetic separation equipment and magnetic separation process

Abstract

The present invention belongs to the technical field of mineral magnetic separation, and in particular to a mineral multi-stage magnetic separation equipment and magnetic separation process. When the existing dry magnetic separator performs magnetic separation on the ore, since there are many debris inside the mineral during magnetic separation, directly subjecting it to magnetic separation treatment may easily cause the debris to adhere to the outside of the magnetic separation cylinder, thereby reducing the adsorption effect on the metal material and reducing the production of the magnetic separation equipment. The following scheme is now proposed, including a working platform, one side of the working platform is provided with a screening and transportation assembly, and the screening and transportation assembly includes a U-shaped support rod, a motor, a support plate and a mounting seat. Two mounting grooves are provided on one side of the two U-shaped support rods. The present invention discloses a mineral multi-stage magnetic separation equipment and magnetic separation process, which can screen out the debris generated in the mineral to prevent it from adhering to the outside of the magnetic separation cylinder during magnetic separation treatment, thereby improving the adsorption effect of the magnetic separation cylinder and improving the production of the magnetic separation equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral magnetic separation, and in particular to a mineral multi-stage magnetic separation device and a magnetic separation process. Background Art

[0002] Ore refers to a stone containing some valuable minerals taken from a mine. After being crushed, ground and processed step by step, the ore can be used in metal mines, metallurgical industry, chemical industry, construction industry, railway (highway) construction units, cement industry and sand and gravel industry. In the process of processing solid mineral resources, most of them need to be fully utilized after mineral separation. Mineral separation is an important process for processing solid mineral resources. Magnetic separation is usually used to obtain useful substances and make comprehensive utilization. Dry magnetic separator is a commonly used mineral separation equipment.

[0003] A mineral magnetic separator with publication number CN106040425A includes a sorting mechanism and a superconducting magnet that generates a first magnetic field; it also includes a magnetic conductive mechanism, the sorting mechanism includes a rotating mechanism and at least one sorting frame, the sorting frame is arranged at the edge of the rotating mechanism and rotates around the rotating axis of the rotating mechanism; a part of the magnetic conductive mechanism extends into the first magnetic field, and a second magnetic field is formed in another part; the rotating mechanism is at least partially in the second magnetic field. The present invention uses a magnetic conductive mechanism to form a second magnetic field, and uses the second magnetic field to sort magnetic minerals, which ensures that the position of the sorting mechanism can be separated from the position of the superconducting magnet, facilitates the setting of the sorting mechanism, avoids damage to the superconducting magnet during daily operation of the sorting mechanism, and is conducive to the maintenance of the superconducting magnet.

[0004] When the existing dry magnetic separator is used to magnetically separate ore, since there are many debris inside the mineral during magnetic separation, direct magnetic separation treatment can easily cause the debris to adhere to the outside of the magnetic separation cylinder, thereby reducing the adsorption effect on the metal material and reducing the production capacity of the magnetic separation equipment. Summary of the invention

[0005] The present invention discloses a multi-stage magnetic separation device and a magnetic separation process for minerals, aiming to solve the technical problem that when the existing dry magnetic separator in the background technology performs magnetic separation on ore, since there are many debris inside the mineral during magnetic separation, directly performing magnetic separation on the ore may easily cause the debris to adhere to the outside of the magnetic separation cylinder, thereby reducing the adsorption effect on the metal material and reducing the production volume of the magnetic separation equipment.

[0006] The present invention provides a multi-stage mineral magnetic separation device, comprising a working platform, a screening and transporting assembly is arranged on one side of the working platform, a mounting opening is opened on one side of the working platform, and a regulating feed assembly is arranged inside the mounting opening, the regulating feed assembly comprises a magnetic separation frame, a dust removal assembly is arranged on one side of the working platform, the dust removal assembly comprises a pump body, and one end of the pump body is connected to an air outlet pipe;

[0007] The screening and transporting assembly comprises a U-shaped support rod, a motor, a support plate and a mounting seat, one side of each of the two U-shaped support rods is provided with two mounting grooves, and two guide round rods are fixedly connected to the opposite sides of the mounting grooves, and the outsides of each two guide round rods are slidably connected with the same lifting mounting block, and the lifting mounting block is fixedly connected to the opposite side of the mounting groove with two return springs, the return spring is located on the outside of the guide round rod, one side of the two lifting mounting blocks located on the same side is fixedly connected with a support plate, and one side of the two support plates is provided with a circular hole, and the insides of the two opposite circular holes are connected with a rotating column through a bearing, and the outsides of the two rotating columns are movably connected with the same screening conveyor belt;

[0008] The air outlet pipe is arranged on one side of the magnetic selection frame near the cleaning brush plate, each lifting mounting block is provided with an electromagnet, the support plate and the telescopic spring are provided with a pressure sensor, and a baffle is provided at one end of the screening conveyor belt away from the adjusting feed assembly.

[0009] Preferably, a driving motor is fixedly connected to one side of the mounting seat, and a driving end of the driving motor is fixedly connected to the outside of the two rotating columns with a pulley, and the outsides of multiple pulleys are slidably connected to the same belt, the outsides of the two rotating columns are fixedly connected to a limiting plate, and one side of the two limiting plates is movably connected to a connecting block, one side of the working platform is fixedly connected to two limiting circular long frames, and the insides of the two limiting circular long frames are slidably connected to a top column, and one side of the two top columns is provided with tooth grooves at equal distances, one side of the two support plates is provided with a circular hole two, and the insides of the two circular holes two are connected to a rotating shaft through a bearing, the outsides of the two rotating shafts are fixedly connected to two semicircular gears, and the driving end of the motor is connected to one end of the rotating shaft through a coupling.

[0010] Preferably, both sides of the magnetic selection frame are connected with blanking plates through hinges, and one side of the two blanking plates is fixedly connected with a fixed block, one side of the working platform is fixedly connected with two telescopic cylinders, the ejection ends of the two telescopic cylinders are fixedly connected with the same lifting rod, one end of the lifting rod is fixedly connected with a pillar, and one side of the pillar is fixedly connected with a resistance block.

[0011] Preferably, three circular holes are provided on both sides of the support block and the fixed block, and the interiors of the two opposite circular holes are connected with rotating shafts through bearings, and the external parts of the two rotating shafts are movably connected with the same adjusting rod, and two mounting holes are provided on both sides of the magnetic separation frame, and the interiors of the two opposite mounting holes are respectively installed with sorting magnetic rollers and ore unloading cylinders, and magnetic components are provided inside the sorting magnetic rollers and ore unloading cylinders.

[0012] Preferably, fixed long plates are fixedly connected to the opposite sides of the magnetic separation frame, and telescopic springs are fixedly connected to one side of the fixed long plate at equal distances, one side of the multiple telescopic springs is fixedly connected to the same cleaning brush plate, and the opposite sides of the magnetic separation frame are fixedly connected to the same ore separation plate.

[0013] Preferably, one side of the magnetic selection frame is fixedly connected to a mounting seat three, and one side of the mounting seat three is fixedly connected to a rotating device.

[0014] Preferably, the dust removal assembly includes a hollow connecting frame, and dust suction holes are equidistantly opened on one side of the hollow connecting frame. The interiors of the multiple dust suction holes are fixedly connected to metal telescopic tubes, and the other ends of the multiple metal telescopic tubes are fixedly connected to dust suction plates.

[0015] Preferably, a pump body is fixedly connected to one side of the working platform, and a dust suction end of the pump body is connected to the inside of the hollow connecting frame through a dust suction pipe.

[0016] Preferably, one side of one of the support plates is fixedly connected to a mounting seat 2, the bottom of the working platform is fixedly connected to supporting cylinders at equal distances, one side of the working platform is provided with a mounting opening, and the interior of the mounting opening is fixedly connected to a collection frame.

[0017] A method for using a mineral multi-stage magnetic separation device comprises the following steps:

[0018] Step 1: When the mineral is transported and magnetically separated, the drive motor is started, and the drive motor drives the screening conveyor belts on the two rotating columns to rotate through the belts, so that the mineral is transported, and at the same time, the debris inside the mineral is screened out through the openings on the screening conveyor belts;

[0019] Step 2: At the same time, the motor can be started to drive the semicircular gear on the rotating shaft to rotate. When the semicircular gear rotates, when the tooth block end of the semicircular gear meshes with the tooth groove of the top column, the top column drives the connecting block to make the screening conveyor belt descend. At this time, the lifting installation block slides and descends outside the guide round rod at the same time, and the reset spring is squeezed at the same time;

[0020] Step 3: When the tooth block end of the semicircular gear is separated from the tooth groove on the top column, the reset spring rebounds instantly, causing the screening conveyor belt to shake when conveying minerals.

[0021] Beneficial effects:

[0022] 1. The present invention is provided with a screening and transporting component. When the mineral is transported and magnetically separated, the driving motor is started. The driving motor drives the screening conveyor belts on the two rotating columns to rotate through the belt, so that the mineral is transported. At the same time, the debris inside the mineral is screened out through the openings on the screening conveyor belt. At the same time, the semicircular gear on the rotating shaft is driven to rotate by the motor, so that the screening conveyor belt shakes when transporting the mineral, so that the debris generated inside the mineral is screened out more thoroughly, thereby improving the adsorption effect of the magnetic separation cylinder and improving the production capacity of the magnetic separation equipment.

[0023] 2. The present invention is provided with an adjustable feed assembly. When the minerals are initially screened and discharged, the minerals fall above the discharge plate. At this time, the telescopic cylinder drives the lifting rod to move, so that the lifting rod drives the stop block to move up and down, and the stop block drives the adjusting rod to adjust the opening and closing size of the two discharge plates, thereby avoiding excessive discharge at one time and reducing the adsorption effect of the sorting magnetic roller. At the same time, the cleaning brush plates on the multiple telescopic springs on the fixed long plate inside the magnetic selection frame clean the debris attached to the outside of the sorting magnetic roller, thereby improving the adsorption effect of the sorting magnetic roller.

[0024] 3. The present invention arranges an electromagnet in each lifting mounting block, and arranges a pressure sensor on the support plate and the telescopic spring. On the one hand, the lifting mounting block drives the screening conveyor belt to rotate, so as to classify ores of different sizes, and thereby put ores of the same size into the adjusting feed component, and open openings of different sizes with the discharge plate for ores of different sizes; on the other hand, the state of the cleaning brush plate is detected by the pressure sensor on the telescopic spring, and the inclination state of the screening conveyor belt is adjusted by the mounting block, and the impurities on the cleaning brush plate are effectively removed in cooperation with the discharge plate and the dust removal component. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of a multi-stage magnetic separation device for minerals proposed by the present invention;

[0026] Figure 2 A schematic side view of the structure of a multi-stage magnetic separation device for minerals proposed by the present invention;

[0027] Figure 3 This is a schematic diagram of the structure of a screening and transporting component of a mineral multi-stage magnetic separation device proposed by the present invention;

[0028] Figure 4 A schematic diagram of the structure of a screening and transporting component of a multi-stage magnetic separation device for minerals proposed by the present invention;

[0029] Figure 5 A schematic diagram of the structure of a feed regulating assembly of a multi-stage magnetic separation device for minerals proposed by the present invention;

[0030] Figure 6 A schematic diagram of the structure of a partial feed adjustment component of a multi-stage magnetic separation device for minerals proposed by the present invention;

[0031] Figure 7 This is a schematic structural diagram of a dust removal component of a mineral multi-stage magnetic separation device proposed by the present invention.

[0032] In the figure: 1. Support cylinder; 2. Working platform; 3. Screening and transporting assembly; 301. U-shaped support rod; 302. Guide rod; 303. Lifting and lowering mounting block; 304. Return spring; 305. Support plate; 306. Rotating column; 307. Belt; 308. Screening conveyor belt; 309. Limiting plate; 310. Mounting seat 1; 311. Driving motor; 312. Limiting circular long frame; 313. Top column; 314. Connecting block; 315. Support plate; 316. Rotating shaft; 317. Semicircular gear; 318. Mounting seat 2; 319. Motor; 320. Collection frame; 4. Adjusting the feed Components; 401, unloading plate; 402, lifting rod; 403, telescopic cylinder; 404, pillar; 405, adjusting rod; 406, block; 407, fixed block; 408, rotating shaft; 409, mounting seat three; 410, rotating device; 411, sorting magnetic roller; 412, unloading cylinder; 413, ore separation plate; 414, fixed long plate; 415, telescopic spring; 416, cleaning brush plate; 417, magnetic separation frame; 5, dust removal component; 501, hollow connecting frame; 502, metal telescopic tube; 503, dust suction plate; 504, dust suction tube; 505, pump body; 506, exhaust pipe. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0034] The multi-stage magnetic separation equipment for minerals disclosed in the present invention is mainly used in the scenario where the existing dry magnetic separator is used to magnetically separate ore. Since there are many debris inside the mineral during magnetic separation, directly subjecting it to magnetic separation treatment may easily cause the debris to adhere to the outside of the magnetic separation cylinder, thereby reducing the adsorption effect on the metal material and reducing the production volume of the magnetic separation equipment.

[0035] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4, a mineral multi-stage magnetic separation equipment, including a working platform 2, a screening and transportation component 3 is arranged on one side of the working platform 2, and the screening and transportation component 3 includes a U-shaped support rod 301, a motor 319, a support plate 315 and a mounting seat 310, two U-shaped support rods 301 are provided with two mounting grooves on one side, and two guide round rods 302 are fixedly connected to the opposite sides of the mounting grooves, and the outer sliding connection of each two guide round rods 302 is connected with the same lifting mounting block 303, and the lifting mounting block 303 is fixedly connected to the opposite side of the mounting groove with two return springs 304, and the return spring 304 is located on the outside of the guide round rod 302, and one side of the two lifting mounting blocks 303 located on the same side is fixedly connected with a support plate 305, and a circular hole 1 is provided on one side of the two support plates 305, and the interiors of the two opposite circular holes 1 are connected with a rotating column 306 through a bearing, and the outer movability of the two rotating columns 306 is connected with The same screening conveyor belt 308, one side of the mounting seat 1 310 is fixedly connected with a driving motor 311, and the driving end of the driving motor 311 is fixedly connected to the outside of the two rotating columns 306 with a pulley, and the outside of multiple pulleys is slidably connected with the same belt 307, the outside of the two rotating columns 306 is fixedly connected with a limiting plate 309, and one side of the two limiting plates 309 is movably connected with a connecting block 314, one side of the working platform 2 is fixedly connected with two limiting circular long frames 312, and the inside of the two limiting circular long frames 312 is slidably connected with a top column 313, and one side of the two top columns 313 is equidistantly provided with tooth grooves, one side of the two support plates 315 is provided with a circular hole 2, and the inside of the two circular holes 2 is connected with a rotating shaft 316 through a bearing, the outside of the two rotating shafts 316 is fixedly connected with two semicircular gears 317, and the driving end of the motor 319 is connected to one end of the rotating shaft 316 through a coupling.

[0036] In a specific application scenario, when the mineral is transported and magnetically separated, the drive motor 311 is started, and the drive motor 311 drives the screening conveyor belt 308 on the two rotating columns 306 to rotate through the belt 307, so that the mineral is transported, and the debris inside the mineral is screened through the openings on the screening conveyor belt 308. At the same time, the motor 319 can be started, and the semicircular gear 317 on the rotating shaft 316 is driven to rotate by the motor 319. When the semicircular gear 317 rotates, when the tooth block end of the semicircular gear 317 is engaged with the tooth groove of the top column 313, the top column 313 drives the connecting block 314 to make the screening conveyor belt 308 descend. At this time, the lifting mounting block 303 slides and descends outside the guide round rod 302 at the same time, and the reset spring 304 is squeezed at the same time. When the tooth block end of the semicircular gear 317 is separated from the tooth groove on the top column 313, the reset spring 304 rebounds instantly, thereby causing the screening conveyor belt 308 to shake when transporting the mineral.

[0037] Reference Figure 1 and Figure 5A mounting opening is provided on one side of the working platform 2, and an adjusting feed assembly 4 is provided inside the mounting opening. The adjusting feed assembly 4 includes a magnetic selection frame 417.

[0038] Reference Figure 1 Both sides of the magnetic selection frame 417 are connected to the blanking plates 401 through hinges, and one side of the two blanking plates 401 is fixedly connected to a fixed block 407, one side of the working platform 2 is fixedly connected to two telescopic cylinders 403, the ejection ends of the two telescopic cylinders 403 are fixedly connected to the same lifting rod 402, one end of the lifting rod 402 is fixedly connected to a pillar 404, and one side of the pillar 404 is fixedly connected to a block 406.

[0039] Reference Figure 5 and Figure 6 , circular holes three are provided on both sides of the stop block 406 and the fixed block 407, and the interiors of the two opposite circular holes three are connected with rotating shafts 408 through bearings, and the external movability of the two rotating shafts 408 is connected with the same adjusting rod 405, and two mounting holes are provided on both sides of the magnetic selection frame 417, and the interiors of the two opposite mounting holes are respectively installed with sorting magnetic rollers 411 and ore unloading cylinders 412, and magnetic components are provided inside the sorting magnetic rollers 411 and ore unloading cylinders 412.

[0040] Reference Figure 5 and Figure 6 The two opposite sides of the magnetic separation frame 417 are fixedly connected with a fixed long plate 414, and one side of the fixed long plate 414 is fixedly connected with a telescopic spring 415 at an equal distance, one side of the multiple telescopic springs 415 is fixedly connected with the same cleaning brush plate 416, and the two opposite sides of the magnetic separation frame 417 are fixedly connected with the same ore separation plate 413.

[0041] Reference Figure 5 One side of the magnetic selection frame 417 is fixedly connected to a mounting seat 3 409 , and one side of the mounting seat 3 409 is fixedly connected to a rotating device 410 .

[0042] In a specific application scenario, when the minerals are initially screened and discharged, the minerals fall above the discharge plate 401. At this time, the telescopic cylinder 403 drives the lifting rod 402 to move, so that the lifting rod 402 drives the stop block 406 to move up and down, and the stop block 406 drives the adjusting rod 405 to adjust the opening and closing size of the two discharge plates 401, so as to avoid excessive discharge at one time and reduce the adsorption effect of the sorting magnetic roller 411. At the same time, the cleaning brush plate 416 on the multiple telescopic springs 415 on the fixed long plate 414 inside the magnetic selection frame 417 cleans the debris attached to the outside of the sorting magnetic roller 411, thereby improving the adsorption effect of the sorting magnetic roller 411.

[0043] Reference Figure 1 and Figure 7A dust removal component 5 is provided on one side of the working platform 2, and the dust removal component 5 includes a hollow connecting frame 501, and dust suction holes are opened at equal distances on one side of the hollow connecting frame 501. The interiors of the multiple dust suction holes are fixedly connected with metal telescopic tubes 502, and the other ends of the multiple metal telescopic tubes 502 are fixedly connected with dust suction plates 503.

[0044] Reference Figure 1 and Figure 7 A pump body 505 is fixedly connected to one side of the working platform 2, and a dust suction end of the pump body 505 is connected to the inside of the hollow connection frame 501 through a dust suction pipe 504.

[0045] In a specific application scenario, when the minerals are preliminarily screened, the pump body 505 can be started to absorb the dust generated during the screening process through the dust suction plates 503 on the multiple metal telescopic tubes 502 on the hollow connecting frame 501, and then discharge them uniformly to prevent dust from polluting the working area.

[0046] Reference Figure 1 , Figure 2 and Figure 4 One side of one support plate 315 is fixedly connected with a mounting seat 2 318, the bottom of the working platform 2 is fixedly connected with a supporting cylinder 1 at an equal distance, and a mounting opening is opened on one side of the working platform 2, and a collection frame 320 is fixedly connected inside the mounting opening.

[0047] A method for using a mineral multi-stage magnetic separation device, using the mineral multi-stage magnetic separation device as described above, comprises the following steps:

[0048] Step 1: When transporting minerals, start the drive motor 311, which drives the screening conveyor belts 308 on the two rotating columns 306 to rotate through the belt 307, so that the minerals are transported, and at the same time, the debris inside the minerals is screened out through the openings on the screening conveyor belts 308.

[0049] Step 2, at the same time, the motor 319 can be started to drive the semicircular gear 317 on the rotating shaft 316 to rotate. When the semicircular gear 317 rotates, when the tooth block end of the semicircular gear 317 engages with the tooth groove of the top column 313, the top column 313 drives the connecting block 314 to make the screening conveyor belt 308 descend. At this time, the lifting mounting block 303 slides and descends outside the guide round rod 302 at the same time, and the reset spring 304 is squeezed at the same time.

[0050] Step 3: When the tooth block end of the semicircular gear 317 is separated from the tooth groove on the top column 313, the return spring 304 rebounds instantly, so that the screening conveyor belt 308 shakes when conveying minerals.

[0051] Working principle: When the mineral is transported and magnetically separated, the driving motor 311 is started, and the driving motor 311 drives the screening conveyor belt 308 on the two rotating columns 306 to rotate through the belt 307, so that the mineral is transported, and at the same time, the debris inside the mineral is screened through the openings on the screening conveyor belt 308. At the same time, the motor 319 can be started, and the semicircular gear 317 on the rotating shaft 316 is driven to rotate by the motor 319. When the semicircular gear 317 rotates, when the tooth block end of the semicircular gear 317 is engaged with the tooth groove of the top column 313, the top column 313 drives the connecting block 314 to make the screening conveyor belt 308 descend. At this time, the lifting mounting block 303 slides and descends outside the guide round rod 302 at the same time, and the reset spring 304 is squeezed at the same time. When the tooth block end of the semicircular gear 317 is separated from the tooth groove on the top column 313, the reset spring 304 rebounds instantly, thereby making the screening conveyor belt When 308 is transporting minerals, it will shake. At this time, the pump body 505 can be started, and the dust generated during the screening process can be absorbed by the dust suction plates 503 on the multiple metal telescopic tubes 502 on the hollow connecting frame 501, and then discharged uniformly to prevent the dust from polluting the working area. When the minerals are initially screened and discharged, the minerals fall above the discharge plate 401. At this time, the telescopic cylinder 403 drives the lifting rod 402 to move, so that the lifting rod 402 drives the stop block 406 to move up and down, so that the stop block 406 drives the adjusting rod 405 to adjust the opening and closing size of the two discharge plates 401, so as to avoid too much material being discharged at one time and reduce the adsorption effect of the separation magnetic roller 411. At the same time, the cleaning brush plates 416 on the multiple telescopic springs 415 on the fixed long plate 414 inside the magnetic separation frame 417 clean the debris attached to the outside of the separation magnetic roller 411 to improve the adsorption effect of the separation magnetic roller 411.

[0052] Embodiment 2

[0053] During actual use, the operator found that when the device is used to magnetically separate and screen the ore, since the ores falling on the screening conveyor belt 308 are of different sizes, when the ore is sent to the magnetic separation frame 417 for magnetic separation and screening by the vibrating screening conveyor belt 308, if the opening of the unloading plate 401 is too large, it will cause too much small blocks mixed in the large blocks to be discharged at one time, and the separation magnetic roller 411 will not be able to magnetically separate them in time; and if the opening of the unloading plate 401 is too small, it will cause large blocks to be blocked at the opening, and the ore cannot be magnetically separated and screened normally. At the same time, after a long period of use, one side of the cleaning brush plate 416 will be covered with a large amount of debris. When the thrust of the separation magnetic roller 411 on the cleaning brush plate 416 through the debris is greater than the elastic force of the telescopic spring 415, the cleaning brush plate 416 will be pushed to rotate, thereby causing the cleaning brush plate 416 to lose its cleaning effect. Therefore, in order to solve the above technical problems, the device is improved according to the method described in this embodiment.

[0054] One end of the pump body 505 is connected to the air outlet pipe 506, and the air outlet pipe 506 is arranged on one side of the magnetic selection frame 417 close to the cleaning brush plate 416. An electromagnet is provided in each lifting mounting block 303, and pressure sensors are provided on the support plate 305 and the telescopic spring 415. A baffle is provided on the end of the screening conveyor belt 308 away from the adjusting feed assembly 4.

[0055] First, when ores of different sizes fall on the screening conveyor belt 308, the belt 307 is driven to rotate by controlling the driving motor 311, so that the two rotating columns 306 drive the screening conveyor belt 308 to rotate from one end close to the regulating feed component 4 to the other end away from the regulating feed component 4, so that the ore on the screening conveyor belt 308 moves to the end away from the regulating feed component 4. In this process, the semicircular gear 317 is driven to rotate by the controlling motor 319. When the tooth block end of the semicircular gear 317 is engaged with the tooth groove on one side of the top column 313, the semicircular gear 317 pushes the top column 313 to slide downward in the limiting circular long frame 312, thereby driving the screening conveyor belt 308 to move downward and squeezing the reset spring 304. When the tooth block end of 17 separates from the tooth groove during rotation, the elastic force of the reset spring 304 will push the screening conveyor belt 308 to move upward, and the screening conveyor belt 308 will vibrate up and down under the continuous rotation of the semicircular gear 317 and the elastic force of the reset spring 304. At this time, since the screening conveyor belt 308 is tilted, the larger ore will roll in the direction of the adjusting feed component 4 under the action of vibration and tilt, while the smaller ore will move along the rotation direction of the screening conveyor belt 308 away from the adjusting feed component 4, and the ore will be classified according to size. The larger the ore, the closer it is to the adjusting feed component 4, thereby preventing ores of different sizes from entering the adjusting feed component 4 at the same time, resulting in the problem that the opening size of the blanking plate 401 cannot be adjusted to an appropriate size.

[0056] At the same time, the pressure value of the screening conveyor belt 308 near the end of the adjusting feed component 4 is detected in real time through the pressure sensor arranged on the support plate 305, and the opening size of the unloading plate 401 is adjusted accordingly according to the detected pressure value. Since the ore has been split according to the size of the ore in the above operation, the size of the ore entering the adjusting feed component 4 in the same time period remains roughly the same. At this time, the opening size of the unloading plate 401 is controlled according to the pressure value detected by the pressure sensor to avoid the situation where the opening of the unloading plate 401 is too large or too small, which leads to problems in unloading.

[0057] Secondly, when the pressure sensor arranged on the support plate 305 near the end of the regulating feed assembly 4 does not detect the pressure value, while the pressure sensor at the end far from the regulating feed assembly 4 can still detect the pressure value, it means that the ore at the end of the screening conveyor belt 308 near the regulating feed assembly 4 has been completely thrown into the regulating feed assembly 4, while the ore at the end far from the regulating feed assembly 4 cannot roll down through vibration. In this state, when the semicircular gear 317 drives the screening conveyor belt 308 to move downward, the electromagnets in the two lifting mounting blocks 303 far from the end of the regulating feed assembly 4 are controlled to start, thereby increasing the pressure between the lifting mounting blocks 303 and the guide Due to the friction between the round rods 302, the downward displacement of the lifting mounting block 303 at one end away from the adjusting feed component 4 will be smaller than the displacement of the lifting mounting block 303 at one end close to the adjusting feed component 4, so that the screening conveyor belt 308 rotates during the descent process, and the inclination angle of the screening conveyor belt 308 increases, so that the ore at one end away from the adjusting feed component 4 moves toward the adjusting feed component 4, and when the screening conveyor belt 308 moves upward, the electromagnetic power is cut off to restore the screening conveyor belt 308 to its initial position, and the above process is repeated, so that all the ores on the screening conveyor belt 308 are moved into the adjusting feed component 4.

[0058] Again, the weight of the ore near one end of the screening conveyor belt 308 adjusting the feed assembly 4 is detected by a pressure sensor. If it is detected that the ore here is a large piece of ore, the telescopic cylinder 403 is controlled to drive the support 404 to move downward, so that the stop block 406 drives the adjusting rod 405 to push the unloading plate 401 to rotate downward, increasing the distance between the two unloading plates 401, thereby preventing the distance between the two unloading plates 401 from being too small, resulting in the problem that large pieces of ore cannot enter the magnetic separation frame 417 for magnetic separation and screening; and when small pieces of ore enter the magnetic separation frame 417 through the unloading plate 401, since the volume of small pieces of ore and debris is similar, the small pieces of ore and debris will fall on the separation magnetic roller 411 at the same time. At this time, the non-magnetic material will be separated from the separation magnetic roller 411 under the rotation of the separation magnetic roller 411, and fall on the left side of the separation plate 413 to collect the non-magnetic ore.

[0059] The ores with stronger magnetism, the ores with weaker magnetism and the sticky debris will rotate along with the separation magnetic roller 411. When the separation magnetic roller 411 drives the ore to rotate to the bottom, the ores with weaker magnetism will be separated from the separation magnetic roller 411 under the action of centrifugal force and gravity, and fall between the separation plate 413 and the unloading cylinder 412, and the ores with poorer magnetism will be collected.

[0060] The ore with stronger magnetism and the sundries with stickiness will continue to rotate with the separation magnetic roller 411 until they come into contact with the cleaning brush plate 416. At this time, the cleaning brush plate 416 will separate the sundries and the ore with stronger magnetism adsorbed on the separation magnetic roller 411 from the separation magnetic roller 411. The ore with stronger magnetism will lose the magnetic attraction of the separation magnetic roller 411 and will fall downward onto the unloading cylinder 412. Under the magnetic attraction of the unloading cylinder 412, it will adhere to the unloading cylinder 412. As the unloading cylinder 412 rotates, the ore with stronger magnetism will be collected to the right side of the unloading cylinder 412, thereby completing the sorting and collection of the three kinds of ores. The sundries on the separation magnetic roller 411 will be accumulated on one side of the cleaning brush plate 416 and will be compressed by the pressure provided on the telescopic spring 415. The force sensor detects the pressure value received by the telescopic spring 415. If the pressure value of the telescopic spring 415 detected at this time exceeds the preset value, it means that the thrust of the cleaning brush plate 416 exerted by the sorting magnetic roller 411 through the debris is greater than the elastic force of the telescopic spring 415, which will push the cleaning brush plate 416 to rotate, and the cleaning brush plate 416 loses the cleaning effect on the sorting magnetic roller 411. At this time, the electromagnet in the lifting mounting block 303 close to the feed regulating assembly 4 is controlled to start, so that the screening conveyor belt 308 is changed from an inclined state to a horizontal state, and the material is stopped from being unloaded into the regulating feed assembly 4, thereby preventing too much debris from being adsorbed on the sorting magnetic roller 411, resulting in the weakening of the magnetic attraction of the sorting magnetic roller 411 to the ore, affecting the effect of magnetic separation and screening.

[0061] Finally, when it is necessary to clean the debris on the cleaning brush plate 416, the telescopic cylinder 403 is used to drive the unloading plate 401 to close, and the pump body 505 is controlled to be connected with the air outlet pipe 506, and high-pressure gas is rushed into the magnetic selection frame 417. The high-pressure gas blown out through the air outlet pipe 506 will blow the debris adsorbed on the cleaning brush plate 416 to the sorting magnetic roller 411, and the high-pressure gas will make the telescopic spring 415 on the cleaning brush plate 416 move back and forth to vibrate the sorting magnetic roller 411, thereby completing the cleaning of the debris. When the debris is cleaned, the unloading plate 401 is driven to rotate downward by the telescopic cylinder 403, and the cleaning brush plate 416 is pushed to return to its initial position, so that the cleaning brush plate 416 can continue to effectively clean the debris on the sorting magnetic roller 411.

[0062] It should be particularly noted that the present invention arranges an electromagnet in each lifting mounting block 303, and arranges a pressure sensor on the support plate 305 and the telescopic spring 415. On the one hand, the lifting mounting block 303 drives the screening conveyor belt 308 to rotate, so as to classify ores of different sizes, and thereby put ores of the same size into the adjusting feed component 4, and open openings of different sizes with the discharge plate 401 for ores of different sizes. On the other hand, the state of the cleaning brush plate 416 is detected by the pressure sensor on the telescopic spring 415, and the inclination state of the screening conveyor belt 308 is adjusted by the lifting mounting block 303, and the impurities on the cleaning brush plate 416 are effectively removed in cooperation with the discharge plate 401 and the dust removal component 5.

[0063] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mineral multi-stage magnetic separation device, comprising a working platform, characterized in that: A screening and transporting assembly is provided on one side of the working platform, a mounting opening is provided on one side of the working platform, and an adjusting and feeding assembly is provided inside the mounting opening, the adjusting and feeding assembly includes a magnetic selection frame, a dust removal assembly is provided on one side of the working platform, the dust removal assembly includes a pump body, and one end of the pump body is connected to the air outlet pipe; The screening and transporting assembly comprises a U-shaped support rod, a motor, a support plate and a mounting seat, one side of each of the two U-shaped support rods is provided with two mounting grooves, and two guide round rods are fixedly connected to the opposite sides of the mounting grooves, and the outsides of each two guide round rods are slidably connected with the same lifting mounting block, and the lifting mounting block is fixedly connected to the opposite side of the mounting groove with two return springs, the return spring is located on the outside of the guide round rod, one side of the two lifting mounting blocks located on the same side is fixedly connected with a support plate, and one side of the two support plates is provided with a circular hole, and the insides of the two opposite circular holes are connected with a rotating column through a bearing, and the outsides of the two rotating columns are movably connected with the same screening conveyor belt; The air outlet pipe is arranged on one side of the magnetic selection frame near the cleaning brush plate, each lifting and lowering mounting block is provided with an electromagnet, the support plate and the telescopic spring are provided with a pressure sensor, and the end of the screening conveyor belt away from the adjusting feed assembly is provided with a baffle; One side of the mounting seat is fixedly connected with a driving motor, and the driving end of the driving motor is fixedly connected to the outside of the two rotating columns with a pulley, and the outsides of multiple pulleys are slidably connected with the same belt, the outsides of the two rotating columns are fixedly connected with a limiting plate, and one side of the two limiting plates is movably connected with a connecting block, one side of the working platform is fixedly connected with two limiting circular long frames, and the insides of the two limiting circular long frames are slidably connected with a top column, and one side of the two top columns is provided with tooth grooves at equal distances, one side of the two support plates is provided with a circular hole two, and the insides of the two circular holes two are connected with a rotating shaft through a bearing, the outsides of the two rotating shafts are fixedly connected with two semicircular gears, and the driving end of the motor is connected to one end of the rotating shaft through a coupling.

2. A mineral multi-stage magnetic separation equipment according to claim 1, characterized in that: Both sides of the magnetic selection frame are connected with blanking plates through hinges, and one side of the two blanking plates is fixedly connected with a fixed block, one side of the working platform is fixedly connected with two telescopic cylinders, the ejection ends of the two telescopic cylinders are fixedly connected with the same lifting rod, one end of the lifting rod is fixedly connected with a pillar, and one side of the pillar is fixedly connected with a resistance block.

3. A mineral multi-stage magnetic separation equipment according to claim 2, characterized in that: There are three circular holes on both sides of the support block and the fixed block, and the interiors of the two opposite circular holes are connected with rotating shafts through bearings, and the exteriors of the two rotating shafts are movably connected with the same adjusting rod. There are two mounting holes on both sides of the magnetic separation frame, and the interiors of the two opposite mounting holes are respectively installed with sorting magnetic rollers and ore unloading cylinders, and magnetic components are provided inside the sorting magnetic rollers and ore unloading cylinders.

4. A mineral multi-stage magnetic separation equipment according to claim 3, characterized in that: The opposite sides of the magnetic separation frame are fixedly connected with fixed long plates, and one side of the fixed long plate is fixedly connected with telescopic springs at equal distances, one side of multiple telescopic springs is fixedly connected with the same cleaning brush plate, and the opposite sides of the magnetic separation frame are fixedly connected with the same ore separation plate.

5. A mineral multi-stage magnetic separation equipment according to claim 4, characterized in that: One side of the magnetic selection frame is fixedly connected to a mounting seat three, and one side of the mounting seat three is fixedly connected to a rotating device.

6. A mineral multi-stage magnetic separation equipment according to claim 5, characterized in that: The dust removal assembly comprises a hollow connection frame, one side of which is provided with dust suction holes at equal distances, the interiors of the plurality of dust suction holes are fixedly connected with metal telescopic tubes, and the other ends of the plurality of metal telescopic tubes are fixedly connected with dust suction plates.

7. A mineral multi-stage magnetic separation equipment according to claim 6, characterized in that: A pump body is fixedly connected to one side of the working platform, and a dust suction end of the pump body is connected to the inside of the hollow connection frame through a dust suction pipe.

8. A mineral multi-stage magnetic separation equipment according to claim 7, characterized in that: One side of one of the support plates is fixedly connected to a mounting seat 2, the bottom of the working platform is fixedly connected to supporting cylinders at equal distances, one side of the working platform is provided with a mounting opening, and the interior of the mounting opening is fixedly connected to a collection frame.

9. A method for using a multi-stage magnetic separation device for minerals, the method using a multi-stage magnetic separation device for minerals as claimed in claim 8 for magnetic separation and screening, characterized in that: The steps include: Step 1: When the mineral is transported and magnetically separated, the drive motor is started, and the drive motor drives the screening conveyor belts on the two rotating columns to rotate through the belt, so that the mineral is transported, and at the same time, the debris inside the mineral is screened out through the openings on the screening conveyor belt; Step 2: Start the motor at the same time, and drive the semicircular gear on the rotating shaft to rotate through the motor. When the semicircular gear rotates, when the tooth block end of the semicircular gear meshes with the tooth groove of the top column, the top column drives the connecting block to make the screening conveyor belt descend. At this time, the lifting installation block slides and descends outside the guide round rod at the same time, and the reset spring is squeezed at the same time; Step 3: When the tooth block end of the semicircular gear is separated from the tooth groove on the top column, the reset spring rebounds instantly, causing the screening conveyor belt to shake when conveying minerals.

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