Environment-friendly iron ore concentrating magnetic separator

Abstract

The application relates to an environment-friendly iron ore concentration magnetic separator, and relates to the technical field of magnetic separators, which comprises a supporting frame, the inner rear side of the supporting frame is fixedly connected with an ore feeding groove body, the bottom of the ore feeding groove body is fixedly connected with a tailing pipe, the inner part of the ore feeding groove body is provided with a magnetic system mechanism, the inner front side of the supporting frame is provided with an ore discharging and cleaning mechanism, the magnetic system mechanism comprises a roller, the left and right sides of the outer part of the roller are fixedly connected with end covers, the outer right side of the roller is provided with a driving assembly, and the driving end of the driving assembly is fixedly connected with a connecting shaft. The application has multiple magnetic system blocks which are fixed in multiple ways through mounting frames, supporting rods and fixed plates in the roller, can generate a strong and stable magnetic field, forms a continuous and reliable magnetic field area on the surface of the roller, can efficiently adsorb magnetic iron ore particles in ore slurry, greatly improves the capturing efficiency of magnetic minerals, and reduces the loss of magnetic minerals.

Description

Technical Field

[0001] This utility model relates to the field of magnetic separators, and in particular to an environmentally friendly magnetic separator for iron ore beneficiation. Background Technology

[0002] When using magnetic separators to refine iron ore, they can efficiently separate iron minerals from impurities to improve concentrate grade and reduce tailings emissions. They also reduce environmental pollution through energy-saving design and dust and noise reduction technology. Magnetic separators are devices that separate iron ore based on magnetic differences. They use magnetic fields to adsorb and recover strongly magnetic iron ore particles, while removing non-magnetic substances. In the process of refining iron ore, magnetic separators can achieve deep purification of iron ore and maximize resource utilization by precisely controlling the magnetic field strength and process flow, thereby significantly improving production efficiency and promoting the transformation of the mining industry towards green and sustainable development.

[0003] In some existing environmentally friendly iron ore beneficiation magnetic separators, the raw ore is evenly fed into the sorting area by a feeding device. Under the action of a high-intensity magnetic field, the strongly magnetic iron ore particles are adsorbed onto the surface of the magnetic roller. As the magnetic roller rotates, they are carried to a specific position and then detach from the magnetic field, falling into the concentrate collection box. Meanwhile, non-magnetic impurities such as gangue are not affected by the magnetic field and are discharged along another path as tailings. During the process, a spray system is equipped to wash the surface of the magnetic medium in real time to prevent clogging and improve the sorting accuracy. At the same time, a closed structure is adopted to reduce dust leakage, and a dust removal device is provided to further purify the air. Wastewater is recycled and reused in the production process, achieving efficient resource recovery and low-pollution control of the environment, and ultimately completing the efficient purification and environmentally friendly production of iron ore.

[0004] In existing technologies, some environmentally friendly magnetic separators for iron ore beneficiation complete the separation through a single magnetic separation process. However, for iron ore rough and concentrate that still contain a small amount of gangue after the initial separation, targeted secondary magnetic separation purification is not possible. Some devices with secondary magnetic separation capabilities also fail to optimize the magnetic separation conditions according to the material characteristics of the rough and concentrate because the magnetic field parameters in the secondary magnetic separation area are the same as those in the primary magnetic separation area. This results in limited secondary purification effects and an inability to effectively improve the purity of the final iron ore concentrate. Furthermore, in the existing magnetic separators, some fine iron ore particles are easily lost with the washing water during the magnetic separation process, which not only reduces the iron ore recovery rate but also increases the difficulty of subsequent wastewater treatment. Therefore, an environmentally friendly magnetic separator for iron ore beneficiation is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this application is to provide an environmentally friendly magnetic separator for iron ore beneficiation, which aims to improve the problem that some environmentally friendly magnetic separators for iron ore beneficiation are not convenient for magnetic separation of refined iron ore.

[0006] The environmentally friendly iron ore beneficiation magnetic separator provided in this application adopts the following technical solution: An environmentally friendly iron ore beneficiation magnetic separator includes a support frame, an inlet trough is fixedly connected to the rear side of the inside of the support frame, a tailings pipe is fixedly connected to the bottom of the inlet trough, a magnetic system is provided inside the inlet trough, and an unloading and cleaning mechanism is provided on the front side of the inside of the support frame. The magnetic system mechanism includes a roller, with end caps fixedly connected to the left and right sides of the roller. A drive assembly is provided on the right side of the roller, with a connecting shaft fixedly connected to the drive end of the drive assembly. Multiple mounting brackets are fixedly connected to the outside of the connecting shaft, and support rods are fixedly connected to the outside of the mounting brackets. A fixing plate is fixedly connected to the outside of the support rods, and multiple magnetic blocks are fixedly connected to the outside of the fixing plate. A magnetic system adjustment is fixedly connected to the left side of the end caps, and the outside of the roller is rotatably connected to the inside of the ore feed trough.

[0007] The above technical solution, through the cooperation of multiple magnetic blocks with fixed plates and support rods, increases the magnetic separation contact area, improves iron ore adsorption efficiency, and achieves higher purity in the selected ore. The magnetic system adjustment components can flexibly adjust the position and angle of the magnetic system to adapt to iron ore of different grades, enhancing applicability. The ore unloading and cleaning mechanism can quickly unload ore and clean the drum, avoiding slag residue from affecting subsequent operations and reducing resource waste. The tailings pipe accurately discharges tailings, facilitating centralized treatment, reducing environmental pollution, and meeting environmental protection requirements.

[0008] Preferred; The ore unloading and cleaning mechanism includes an ore unloading tank, a water tank is fixedly connected to the outer left side of the support frame, a cleaning component is provided on the outer right side of the water tank, a sieve plate is fixedly connected to the inside of the ore unloading tank, a concentrate pipe is fixedly connected to the bottom of the ore unloading tank, and the outside of the ore unloading tank is fixedly connected to the inside of the support frame.

[0009] The above technical solution achieves the following: by using the unloading trough in conjunction with the random plate, the ore can be dispersed to avoid accumulation; the cleaning component draws water from the water tank to clean the drum, ensuring the magnetic separation effect; the concentrate pipe accurately discharges the concentrate, reducing losses, thus improving the overall unloading and cleaning efficiency, ensuring the quality of the concentrate, and meeting the requirements of environmental protection and high efficiency.

[0010] Preferred; The drive assembly includes a motor, a drive shaft is fixedly connected to the drive end of the motor, a pulley is fixedly connected to the outside of the drive shaft, a belt is fixedly coupled to the outside of the pulley, a shaft is fixedly connected to the inside of the pulley, a mounting bracket is fixedly connected to the outside of the shaft, and the motor is fixedly connected to the top right side of the support bracket.

[0011] The above technical solution provides stable power through a motor, which is then efficiently transmitted through a drive shaft, pulley, and belt to drive the drum. The fixed frame secures the shaft, ensuring smooth operation and reliable overall power transmission. This reduces malfunctions, helps the magnetic separator operate continuously and efficiently, and lowers maintenance costs.

[0012] Preferred; The cleaning assembly includes a water pump, the output end of which is fixedly connected to a connecting pipe. A ore discharge water pipe is fixedly connected to the outer right side of the connecting pipe. Multiple connecting pipes are fixedly connected to the outer side of the ore discharge water pipe. Spray nozzles are fixedly connected to the outer left and right sides of the connecting pipes. A rotating ring is fixedly connected to the top of the connecting pipes. Multiple rotating plates are fixedly connected to the outer side of the rotating ring. A spring limiting plate is sleeved on the outer side of the rotating ring. A U-shaped plate is fixedly connected to the outer side of the spray nozzles. The water pump is fixedly connected to the outer left side of the support frame.

[0013] The above technical solution involves pumping water from a water tank, delivering it through connecting pipes, unloading water pipes, and connecting pipes, and then using nozzles to efficiently spray water onto the cleaning drum. A rotating ring drives a rotating plate to rotate with the water flow, expanding the cleaning range. A spring limit plate stabilizes the rotating ring, and a U-shaped plate fixes the nozzles. This ensures comprehensive and stable cleaning, avoids slag residue, guarantees magnetic separation efficiency, reduces equipment wear, and meets the requirements of environmental protection and high efficiency.

[0014] Preferred; The connecting shaft is externally fixedly connected to the inside of the roller, the inner wall of the roller is rotatably connected to the outer wall of the magnetic block, and the magnetic system adjustment is externally fixedly connected to the top left side of the support frame.

[0015] The above technical solution involves fixing the connecting shaft inside the drum and rotating the magnetic system block on the inner wall of the drum to ensure smooth drum rotation. The magnetic system is adjusted and fixed on the support frame, which facilitates precise adjustment of the magnetic system position, optimizes the magnetic separation effect, and improves the overall stability and accuracy of equipment operation.

[0016] Preferred; The bottom of the motor is fixedly connected to the top right side of the support frame, and the bottom of the fixing frame is fixedly connected to the top right side of the support frame.

[0017] The above technical solution, by fixing both the motor and the mounting bracket to the top right side of the support frame, provides a double-stabilized layout to prevent shaking during operation, ensures accurate power transmission, reduces component wear, and allows the drive components to work continuously and stably, further improving the overall operational reliability of the magnetic separator.

[0018] Preferred; The outer side of the drum is rotatably connected to the inside of the unloading trough, and the outer wall of the drum is rotatably connected to the outer wall of the sluice plate.

[0019] The above technical solution, by connecting the unloading trough outside the drum and the random plate on the outer wall, not only ensures the flexible rotation of the drum, but also helps to disperse the ore with the random plate, avoids blockage, makes unloading smoother, reduces ore residue, and improves the stability of equipment operation, thus facilitating efficient magnetic separation.

[0020] Preferred; The unloading water pipe is externally fixedly connected to the top left and right sides of the unloading tank, and the outer wall of the rotating ring is rotatably connected to the inner wall of the U-shaped plate.

[0021] The above technical solution involves fixing the ore unloading water pipes to both sides of the top of the ore unloading tank, which allows for comprehensive water supply and cleaning. The rotating ring connects to the inner wall of the U-shaped plate, ensuring flexible rotation and expanding the cleaning range. The combination of these two technologies enhances the cleaning effect, reduces residue, and ensures stable equipment operation.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The drum contains multiple magnetic blocks fixed by mounting frames, support rods, and fixing plates, which generate a strong and stable magnetic field. This forms a continuous and reliable magnetic field area on the drum surface, which can efficiently adsorb magnetic iron ore particles in the slurry, significantly improving the capture efficiency of magnetic minerals and reducing their loss. In terms of separation, the device can accurately separate magnetic iron ore particles from non-magnetic tailings. Non-magnetic gangue, silt, and other tailings can be smoothly discharged with the slurry through the tailings pipe, avoiding the mixing of tailings and magnetic minerals. This ensures the purity of the initial magnetic separation and reduces the burden on subsequent tailings processing.

[0023] 2. Through the mechanical scraping action of the random plate, the magnetic concentrate rotating with the drum can be initially dispersed and separated, effectively avoiding excessive adhesion and agglomeration of the concentrate on the drum surface, laying a good foundation for subsequent processing. On the other hand, relying on the high-pressure water mist washing system, the clean water pressurized by the water pump is transformed into fan-shaped or cone-shaped water mist through the nozzle, which can not only accurately impact the concentrate remaining on the drum surface to assist in its complete stripping, but also simultaneously wash away the impurities attached to the surface of the concentrate, greatly improving the purity of the concentrate product and reducing the interference of impurities on subsequent processing steps. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of an environmentally friendly magnetic separator for iron ore beneficiation proposed in this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the drum of an environmentally friendly magnetic separator for iron ore beneficiation proposed in this utility model.

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0027] Figure 4 This is a schematic diagram of the ore feed trough of an environmentally friendly iron ore beneficiation magnetic separator proposed in this utility model.

[0028] Explanation of reference numerals in the attached figures: 1. Support frame; 2. Feed trough; 3. Tailings pipe; 4. Magnetic system mechanism; 41. Drum; 42. End cap; 43. Drive assembly; 431. Motor; 432. Drive shaft; 433. Rotary wheel; 434. Belt; 435. Rotating shaft; 436. Fixing frame; 44. Connecting shaft; 45. Mounting frame; 46. Support rod; 47. Fixing plate; 48. Magnetic block; 49. Magnetic system adjustment; 5. Unloading and cleaning mechanism; 51. Unloading trough; 52. Water tank; 53. Cleaning assembly; 531. Water pump; 532. Connecting pipe; 533. Unloading water pipe; 534. Connecting pipe; 535. Nozzle; 536. Rotating ring; 537. Rotating plate; 538. Spring limit plate; 539. U-shaped plate; 54. Random plate; 55. Concentrate pipe. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1 -Appendix Figure 4 This application will be described in further detail below.

[0030] Example: An environmentally friendly magnetic separator for iron ore beneficiation, referring to... Figure 1 , Figure 2 and Figure 4 The system includes a support frame 1, which is the main skeleton of the magnetic separator. It not only supports the feed trough 2, the magnetic system 4, and the unloading and cleaning mechanism 5, but also plays a role in transmitting power and maintaining the overall stability of the equipment. The feed trough 2 is fixedly connected to the rear of the support frame 1, which is the carrying and conveying channel for iron ore raw materials. It receives the slurry conveyed by the external feeding equipment, provides magnetic separation operation space for the magnetic system 4 drum 41 and magnetic blocks 48, and guides the tailings to be discharged through the tailings pipe 3, realizing the initial zoning of "magnetic separation-tailings separation". The bottom of the feed tank 2 is fixedly connected to the tailings pipe 3, which transports the tailings gangue, mud and sand that do not contain magnetic iron ore after magnetic separation to the subsequent tailings treatment system such as sedimentation tank and dewatering machine, so as to separate magnetic minerals from non-magnetic impurities. It is the key channel for "solid waste reduction" of environmentally friendly magnetic separators. The feed tank 2 is equipped with a magnetic system 4, which is responsible for generating magnetic force. The front of the support frame 1 is equipped with a ore unloading and cleaning mechanism 5, which is responsible for peeling off the magnetic mineral concentrate adsorbed on the surface of the drum 41, washing it, and collecting it into the concentrate tank. The magnetic system mechanism 4 includes a drum 41, the outside of which is in contact with the slurry, and a magnetic block 48 fixed inside. By rotating, the magnetic iron ore in the slurry is adsorbed onto the surface of the drum 41 and transported to the unloading area as the drum 41 rotates. It is the key carrier for realizing "magnetic mineral capture-transport". End caps 42 are fixedly connected to the left and right sides of the outside of the drum 41 to close the openings at both ends of the drum 41, preventing the slurry from entering the inside of the drum 41 and contaminating the magnetic block 48. At the same time, it provides an installation base for the connecting shaft 44 and the magnetic system adjustment 49, ensuring the coaxiality of the drum 41 and the drive assembly 43. A drive assembly 43 is provided on the outer right side of the roller 41 to provide rotational power to the roller 41. Through the cooperation of the motor 431, the transmission shaft 432, the wheel 433, and the belt 434, the power of the motor 431 is transmitted to the roller 41, so that the roller 41 can rotate at a uniform speed with adjustable speed. The drive end of the drive assembly 43 is fixedly connected to the connecting shaft 44, which passes through the inside of the roller 41 and connects the rotating shaft 435 to the mounting bracket 45. The rotating shaft 435 transmits the power to the roller 41 and is also the fixed carrier of the magnetic block 48. Multiple mounting brackets 45 are fixedly connected to the outside of the connecting shaft 44 to provide the mounting base for the support rod 46 and fix the magnetic block 48 evenly inside the roller 41 to ensure a stable magnetic field distribution. The mounting frame 45 is externally fixedly connected to a support rod 46, which connects the mounting frame 45 and the fixing plate 47 to form a support frame for the magnetic block 48. This ensures that the magnetic block 48 is stably positioned inside the roller 41 and does not shift as the roller 41 rotates. The support rod 46 is externally fixedly connected to a fixing plate 47, which serves as the direct mounting carrier for the magnetic block 48. The magnetic blocks 48 are arranged at a preset interval to ensure a uniform distribution of magnetic field strength. Multiple magnetic blocks 48 are fixedly connected to the outside of the fixed plate 47, generating a strong magnetic field and forming a stable magnetic field area on the surface of the drum 41, which adsorbs magnetic iron ore particles in the slurry. A magnetic system adjustment 49 is fixedly connected to the outside of the end cover 42. The radial position of the magnetic blocks 48 inside the drum 41 is changed by the adjustment mechanism, thereby adjusting the magnetic field distribution on the surface of the drum 41, such as magnetic field strength and magnetic field coverage angle, to adapt to the magnetic separation requirements of iron ore of different grades. The outside of the drum 41 is rotatably connected to the inside of the feed trough 2. The ore unloading and cleaning mechanism 5 includes an unloading tank 51, which serves as the unloading and cleaning carrier for magnetic concentrate. It receives magnetic iron ore detached from the surface of the drum 41, achieves initial dispersion of the concentrate through the random plate 54, and works with the cleaning component 53 to wash away impurities such as gangue powder and sludge on the surface of the concentrate. Finally, it guides the clean concentrate to be discharged through the concentrate pipe 55. A water tank 52 is fixedly connected to the outer left side of the support frame 1. It serves as a water source storage container for the cleaning component 53 and provides a continuous and stable supply of clean water to the nozzle 535. The cleaning component 53 is installed on the outer right side of the water tank 52 to provide a high-pressure cleaning water source for the unloading process. After the water in the water tank 52 is pressurized by the water pump 531, it is transported to the nozzle 535 through the pipeline. The high-pressure water flow impacts the magnetic concentrate on the surface of the drum 41, realizing the dual function of "unloading and cleaning". It helps the concentrate to be removed from the drum 41 and washes away the non-magnetic impurities attached to the surface of the concentrate, thereby improving the purity of the concentrate. The inside of the unloading tank 51 is fixedly connected to the random plate 54. When the surface of the drum 41 adsorbing the concentrate rotates to contact the random plate 54, the random plate 54 forcibly "scrapes" the concentrate layer off the drum surface. The bottom of the unloading tank 51 is fixedly connected to the concentrate pipe 55, which transports the cleaned concentrate to the subsequent concentrate processing. It is necessary to ensure that the concentrate flows smoothly and without residual blockage. The outside of the unloading tank 51 is fixedly connected to the inside of the support frame 1. Specifically, the slurry is fed into the ore inlet tank 2 by external feeding equipment to form a stable slurry flow. The drum 41 rotates at a constant speed under the drive component 43. The internal magnetic block 48 generates a strong magnetic field, which adsorbs magnetic iron ore particles in the slurry onto the surface of the drum 41. Non-magnetic tailings are discharged through the tailings pipe 3 for subsequent processing. The surface of the drum 41, which adsorbs magnetic concentrate, enters the unloading area as it rotates. It first contacts the random plate 54, and the concentrate layer is scraped off the drum surface. At the same time, the water pump 531 of the cleaning component 53 pressurizes the clean water in the water tank 52 and delivers it to the nozzle 535. The high-pressure water jet impacts the concentrate, achieving the dual effects of stripping and cleaning. The clean concentrate after washing falls into the unloading tank 51 and is finally discharged and collected through the concentrate pipe 55. The magnetic system adjustment mechanism 49 can change the position of the magnetic block 48 to adapt to the magnetic separation requirements of different slurries.

[0031] Reference Figure 3 and Figure 4 The drive assembly 43 includes a motor 431, which achieves soft start during startup through frequency conversion control to avoid instantaneous impact damage to the magnetic block 48 or the roller 41. The drive end of the motor 431 is fixedly connected to a transmission shaft 432, which connects the motor 431 and the driving wheel 433. It is necessary to compensate for the installation error between the motor 431 and the wheel 433 while transmitting torque to avoid local stress concentration caused by coaxiality deviation. The external part of the transmission shaft 432 is fixedly connected to a wheel 433, which connects the driving wheel 433 to the transmission shaft 432 and the driven wheel 433 to the shaft 435. The speed reduction transmission is achieved through the difference in wheel diameter. The external coupling of the pulley 433 is fixedly connected to the belt 434, which is a flexible transmission component. It needs to transmit power between the driving pulley 433 and the driven pulley 433, and at the same time buffer the impact when the motor 431 starts and the load fluctuation of the roller 41. The internal side of the pulley 433 is fixedly connected to the shaft 435, which is the connecting shaft 44 connecting the driven pulley 433 and the roller 41. It needs to convert the torque transmitted by the belt 434 into the rotational power of the roller 41. The external fixed connection of the shaft 435 is a fixed frame 436, which is the support carrier for the shaft 435 and the driven pulley 433. The motor 431 is externally fixedly connected to the top right side of the support frame 1. The cleaning component 53 includes a water pump 531, which is the power source of the cleaning component 53. It needs to output a stable pressure water flow. If the pressure is too high, it will easily disperse the concentrate, and if it is too low, it will not be able to effectively clean impurities. Therefore, it is necessary to accurately control the water pressure and flow rate. The output end of the water pump 531 is fixedly connected to a connecting pipe 532, which connects the output end of the water pump 531 to the unloading water pipe 533 to transmit high pressure water flow. The unloading water pipe 533 is fixedly connected to the outer right side of the connecting pipe 532. It is the main water pipe, which distributes the water flow delivered by the connecting pipe 532 to each connecting pipe 534. It is necessary to ensure that the water flow is evenly distributed to avoid insufficient pressure in some nozzles 535. Multiple connecting pipes 534 are fixedly connected to the outside of the ore unloading water pipe 533, connecting the ore unloading water pipe 533 to the nozzle 535, diverting the water flow from the main water pipe to the nozzles 535 on both sides, and providing an installation base for the rotating ring 536 to achieve the angle adjustment of the nozzle 535. The nozzles 535 are fixedly connected to the left and right sides of the connecting pipe 534, converting the high-pressure water flow into a fan-shaped or cone-shaped water mist, which evenly impacts the magnetic concentrate on the surface of the drum 41. It is necessary to ensure that the impact force can strip the concentrate while avoiding damage to the surface of the drum 41. At the same time, the water mist needs to cover the width of the drum 41 without cleaning dead corners. A rotating ring 536 is fixedly connected to the top of the connecting pipe 534. Through cooperation with the rotating plate 537 and the spring limiting plate 538, the automatic angle adjustment of the nozzle 535 is realized. When the water flow impacts the rotating plate 537, it drives the rotating ring 536 to rotate, thereby adjusting the angle of the nozzle 535, expanding the cleaning range, and improving the cleaning uniformity. Multiple rotating plates 537 are fixedly connected to the outside of the rotating ring 536. By bearing the torque generated by the water flow impact, the rotating ring 536 is driven to rotate, thereby driving the nozzle 535 to swing, realizing "dynamic cleaning" and avoiding local over- or under-cleaning caused by the fixed nozzle 535. A spring limiting plate 538 is fitted around the rotating ring 536. The spring force limits the rotation angle of the rotating ring 536 to prevent the nozzle 535 from deviating from the surface of the roller 41 due to excessive rotation angle. At the same time, it provides a restoring force for the rotating ring 536 to ensure the stability of the cleaning range. A U-shaped plate 539 is fixedly connected to the outside of the nozzle 535 to provide rotation support and limit for the rotating ring 536. It also protects the connection between the connecting pipe 534 and the nozzle 535 to prevent the pipe from loosening due to the impact of concentrate. The water pump 531 is fixedly connected to the outside left side of the support frame 1. Specifically, by starting the motor 431, power is transmitted to the driving wheel 433 via the transmission shaft 432, and then driven by the driven wheel 433 via the belt 434. Finally, the roller 41 is driven to rotate at a constant speed via the rotating shaft 435 and the connecting shaft 44. In the cleaning process, the water pump 531 pressurizes the water in the water tank 52 and delivers it to the unloading water pipe 533 through the connecting pipe 532. Then, it is distributed to the nozzles 535 through the connecting pipes 534. The nozzles 535 convert the high-pressure water flow into a fan-shaped water mist, which impacts the concentrate layer adsorbed on the surface of the roller 41. At the same time, the water flow impacts the rotating plate 537, which drives the rotating ring 536 to rotate, causing the nozzles 535 to swing automatically to expand the cleaning range. The spring limit plate 538 limits the swing angle and provides a restoring force to ensure that the cleaning coverage is uniform and stable. The entire process realizes the smooth driving of the roller 41 and the efficient stripping and cleaning of the concentrate.

[0032] Reference Figure 2 and Figure 4 The external of the connecting shaft 44 is fixedly connected to the inside of the drum 41. The inner wall of the drum 41 is rotatably connected to the outer wall of the magnetic block 48. The external of the magnetic adjustment 49 is fixedly connected to the top left side of the support frame 1. The bottom of the motor 431 is fixedly connected to the top right side of the support frame 1. The bottom of the fixing frame 436 is fixedly connected to the top right side of the support frame 1. The external of the drum 41 is rotatably connected to the inside of the unloading trough 51. The outer wall of the drum 41 is rotatably connected to the outer wall of the random plate 54. The external of the unloading water pipe 533 is fixedly connected to the top left and right sides of the unloading trough 51. The outer wall of the rotating ring 536 is rotatably connected to the inner wall of the U-shaped plate 539. Specifically, the slurry enters the feed tank 2, and the drum 41 rotates under the drive of the motor 431. The internal magnetic block 48 generates a magnetic field to attract magnetic minerals to the drum surface, while non-magnetic tailings are discharged from the tailings pipe 3. The drum 41, which has adsorbed the concentrate, rotates into the unloading tank 51 and is scraped off by the scraping plate 54. At the same time, the water pump 531 pumps water through the pipeline to the nozzle 535. The high-pressure water flow washes away impurities on the surface of the concentrate. The nozzle 535 automatically swings through the rotating ring 536 to expand the cleaning range. The cleaned concentrate is discharged from the concentrate pipe 55, completing the sorting.

[0033] The implementation principle of this application embodiment is as follows: Iron ore slurry is transported to the feed trough 2 inside the support frame 1. Inside the feed trough 2, the slurry contacts the drum 41 of the magnetic system mechanism 4. At this time, the motor 431 in the magnetic system mechanism 4 starts. After soft starting via frequency conversion control, the drive shaft 432 at the drive end of the motor 431 drives the rotating wheel 433 to rotate. The rotating wheel 433 transmits power to the rotating shaft 435 on the other side via an externally coupled belt 434. The rotating shaft 435, supported by the fixed frame 436, drives the connecting shaft 44 to rotate, thereby causing the drum 41 outside the connecting shaft 44 to begin rotating at a uniform speed. The drum 41 is supported by the mounting frame 45. Multiple magnetic blocks 48 fixed by rod 46 and fixing plate 47 generate a strong magnetic field, forming a stable magnetic field area on the surface of drum 41. As drum 41 rotates, magnetic iron ore particles in the slurry are adsorbed onto the outer surface of drum 41, while non-magnetic tailings such as gangue and silt are not affected by the magnetic field and flow with the slurry and are discharged through tailings pipe 3 to enter the subsequent tailings treatment, achieving preliminary magnetic separation and tailings separation. The magnetic minerals adsorbed on the surface of drum 41 are carried away from the slurry area as drum 41 rotates and enter the unloading and washing area in front. In this area, unloading and washing mechanism 5 peels the magnetic concentrate from the surface of drum 41 and washes and collects it, finally obtaining the concentrate product.

[0034] As the magnetic concentrate rotates with the drum 41 to the top of the unloading tank 51, it is first mechanically scraped off by the random plate 54 to achieve initial dispersion and separation of the concentrate. At the same time, the water pump 531 pressurizes the clean water in the water tank 52, and the high-pressure water is delivered to the unloading water pipe 533 through the connecting pipe 532. Then, it is distributed to the nozzles 535 on both sides through the connecting pipes 534. The nozzles 535 convert the water flow into a fan-shaped or cone-shaped water mist, which impacts the concentrate on the surface of the drum 41 to help peel off and wash away surface impurities. When the water flow impacts the rotating plate 537, it drives the rotating ring 536 to rotate. The spring limit plate 538 restricts the rotation angle, realizing the dynamic swing cleaning of the nozzles 535 and expanding the coverage area. The clean concentrate after washing is collected in the unloading tank 51 and finally discharged to the subsequent processing stage through the concentrate pipe 55.

[0035] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An environmentally friendly magnetic separator for iron ore beneficiation, comprising a support frame (1), characterized in that: The support frame (1) is fixedly connected to the rear side of the ore inlet trough (2), the bottom of the ore inlet trough (2) is fixedly connected to the tailings pipe (3), the ore inlet trough (2) is provided with a magnetic system (4), and the support frame (1) is provided with an unloading and cleaning mechanism (5). The magnetic system mechanism (4) includes a roller (41), with end caps (42) fixedly connected to the left and right sides of the roller (41). A drive assembly (43) is provided on the right side of the roller (41). A connecting shaft (44) is fixedly connected to the drive end of the drive assembly (43). Multiple mounting brackets (45) are fixedly connected to the outside of the connecting shaft (44). A support rod (46) is fixedly connected to the outside of the mounting bracket (45). A fixing plate (47) is fixedly connected to the outside of the support rod (46). Multiple magnetic blocks (48) are fixedly connected to the outside of the fixing plate (47). A magnetic system adjustment (49) is fixedly connected to the left side of the end cap (42). The outside of the roller (41) is rotatably connected to the inside of the ore feed trough (2).

2. The environmentally friendly iron ore beneficiation magnetic separator according to claim 1, characterized in that: The ore unloading and cleaning mechanism (5) includes an ore unloading tank (51), a water tank (52) is fixedly connected to the outer left side of the support frame (1), a cleaning component (53) is provided on the outer right side of the water tank (52), a random plate (54) is fixedly connected inside the ore unloading tank (51), a concentrate pipe (55) is fixedly connected to the bottom of the ore unloading tank (51), and the outside of the ore unloading tank (51) is fixedly connected to the inside of the support frame (1).

3. The environmentally friendly iron ore beneficiation magnetic separator according to claim 1, characterized in that: The drive assembly (43) includes a motor (431), a drive shaft (432) is fixedly connected to the drive end of the motor (431), a wheel (433) is fixedly connected to the outside of the drive shaft (432), a belt (434) is fixedly connected to the outside of the wheel (433), a shaft (435) is fixedly connected to the inside of the wheel (433), a fixing frame (436) is fixedly connected to the outside of the shaft (435), and the motor (431) is fixedly connected to the top right side of the support frame (1).

4. The environmentally friendly iron ore beneficiation magnetic separator according to claim 2, characterized in that: The cleaning assembly (53) includes a water pump (531), the output end of which is fixedly connected to a connecting pipe (532), the outer right side of which is fixedly connected to a ore discharge water pipe (533), the outer side of which is fixedly connected to multiple connecting pipes (534), the outer left and right sides of which are fixedly connected to nozzles (535), the top of which is fixedly connected to a rotating ring (536), the outer side of which is fixedly connected to multiple rotating plates (537), the outer side of which is fitted with a spring limiting plate (538), the outer side of which is fixedly connected to a U-shaped plate (539), and the outer side of which is fixedly connected to the water pump (531) on the outer left side of the support frame (1).

5. The environmentally friendly iron ore beneficiation magnetic separator according to claim 1, characterized in that: The connecting shaft (44) is externally fixedly connected to the inside of the roller (41), the inner wall of the roller (41) is rotatably connected to the outer wall of the magnetic block (48), and the magnetic system adjustment (49) is externally fixedly connected to the top left side of the support frame (1).

6. The environmentally friendly iron ore beneficiation magnetic separator according to claim 3, characterized in that: The bottom of the motor (431) is fixedly connected to the top right side of the support frame (1), and the bottom of the fixing frame (436) is fixedly connected to the top right side of the support frame (1).

7. The environmentally friendly iron ore beneficiation magnetic separator according to claim 2, characterized in that: The outer side of the roller (41) is rotatably connected to the inside of the unloading trough (51), and the outer wall of the roller (41) is rotatably connected to the outer wall of the scrambled plate (54).

8. The environmentally friendly iron ore beneficiation magnetic separator according to claim 4, characterized in that: The unloading water pipe (533) is externally fixedly connected to the top left and right sides of the unloading tank (51), and the outer wall of the rotating ring (536) is rotatably connected to the inner wall of the U-shaped plate (539).

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