Wet-process mineral powder separation and iron removal equipment based on air pollution control

Abstract

The invention discloses wet-process mineral powder separation and iron removal equipment based on air pollution control, and relates to the technical field of environment-friendly mineral powder iron removal, the wet-process mineral powder separation and iron removal equipment comprises a support frame, and further comprises a shunting mechanism, a low-friction magnetic adsorption separation mechanism, a low-friction discharging mechanism and a rolling water removal mechanism; the low-friction magnetic adsorption separation mechanism is connected with the flow dividing mechanism and is used for separating iron in the ore pulp from the ore pulp and outputting the iron out of the flow dividing mechanism by utilizing a low-friction technology after separation; the low-friction magnetic adsorption sorting mechanism is mounted, so that the problem that a dense medium rubs the surface of a material separation barrel due to asynchronism of the material separation barrel and a magnet is solved, friction to the material separation barrel is reduced, and the service life of the material separation barrel is guaranteed; a low-friction discharging mechanism and a rolling dewatering mechanism are installed to be matched with a low-friction magnetic adsorption sorting mechanism, so that the situation that heavy media slide down along a material separation barrel to be stacked at the position of a discharging opening, and the service life of a roller is affected by friction is avoided, and the situation that other substances are excessively taken out by the heavy media is avoided; the later-stage further separation treatment efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of environmentally friendly mineral powder iron removal technology, and in particular to a wet mineral powder separation and iron removal device based on air pollution control. Background Technology

[0002] Iron removal from mineral powder is mainly achieved through magnetic separation technology. Common equipment includes dry drum magnetic separators. These devices use permanent magnet systems to generate strong magnetic fields, which effectively adsorb ferromagnetic impurities. However, dry magnetic separation (such as drum magnetic separators) is prone to dust generation during material conveying and vibrating screening. Fine mineral powder containing heavy metals / silicon (such as iron ore and quartz sand) may diffuse through airflow, posing a health hazard with long-term exposure, and polluting the surrounding soil and water bodies after settling.

[0003] In existing technologies, such as the high-intensity magnetic separation of heavy media for coal with authorization announcement number CN101143346B, the present invention is characterized by a high-intensity magnetic field system with a fan-shaped cross-section within the magnetic separation drum. The magnetic poles of the magnetic system are composed of neodymium iron boron (NdFeB) magnetic blocks and ferrite magnetic block boxes. Three sets of NdFeB magnetic blocks are fixed in the middle of the fan-shaped cross-section, and a first, second, and third ferrite magnetic block box are sequentially fixed on one side, while a fourth, fifth, and sixth ferrite magnetic block box are sequentially fixed on the other side. This invention is designed for the recovery of heavy media in heavy media coal preparation plants. The invention is rationally designed and can achieve the separation of heavy media and tailings, thus recovering heavy media, improving the recovery rate of heavy media, and reducing the production cost of coal preparation plants.

[0004] While the above solutions offer advantages, they suffer from several drawbacks. The roller rotates while the magnet remains stationary. The magnet attracts the heavy medium through the roller, ensuring close contact. However, as the roller rotates and moves the heavy medium, it slightly slides on the roller surface due to the lack of direct magnetization and the magnet's magnetic field. This prevents the heavy medium from moving synchronously with the roller, causing friction on the roller surface. Consequently, the roller is prone to damage during production and requires regular replacement. Furthermore, the scraping method in these solutions can lead to heavy medium accumulation at the discharge point, blocking the outlet. The continuous friction between the heavy medium and the roller not only hinders discharge but also shortens the roller's lifespan. Additionally, the heavy medium contains significant amounts of moisture and other minerals, which can negatively impact the efficiency of subsequent separation processes. Summary of the Invention

[0005] This invention proposes a wet mineral powder separation and iron removal device based on air pollution control to address the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A wet mineral powder separation and iron removal device based on air pollution control includes a support frame, as well as a diversion mechanism, a low-friction magnetic adsorption separation mechanism, a low-friction feeding mechanism, and a rolling dewatering mechanism. The low-friction magnetic adsorption separation mechanism is connected to the diversion mechanism to separate iron from the slurry and then outputs it to the diversion mechanism using low-friction technology after separation. The diversion mechanism, which is mounted on the support frame, is used to input the slurry and make the slurry fully contact the low-friction magnetic adsorption separation mechanism. A low-friction feeding mechanism, which is connected to a diversion mechanism, is used to separate iron adsorbed by a low-friction magnetic adsorption sorting mechanism. The rolling dewatering mechanism is installed inside the low-friction feeding mechanism and is used to control the content of other substances in the iron material.

[0007] The diversion mechanism includes a trough fixed in a support frame. The trough has an inlet bin, a separation bin, and an outlet bin inside. The inlet bin is connected to the separation bin, and the separation bin is connected to the outlet bin. The outlet bin is connected to multiple outlet pipes, and the outlet pipes pass through the inlet bin and are fixed to the bottom of the trough.

[0008] The low-friction magnetic adsorption sorting mechanism includes a motor bracket fixed to one side of the tank, a motor fixed to the top of the motor bracket, a rotating shaft fixed to one end of the output shaft of the motor, the rotating shaft being rotatably connected to the inside of the tank, and a bevel gear fixed to the end of the rotating shaft away from the motor. Two circular plates are fixed to the outside of the rotating shaft one. Multiple telescopic grooves are formed on the annular wall of the circular plates. Multiple magnet plates are arranged on the outer circumference of the two circular plates. Two movable plates are fixed on the side of the magnet plates near the circular plates. The movable plates are fitted inside the telescopic grooves. A spring one is fixed between the movable plates and the telescopic grooves. Multiple rotating shafts two corresponding to the movable plates are arranged on the side of the two circular plates that are far apart. The rotating shafts two are rotatably connected to the movable plates.

[0009] The low-friction magnetic adsorption sorting mechanism also includes a side plate 1 and a side plate 2 rotatably connected to the outside of the rotating shaft 1. A ring plate is fixed on one side of the side plate 1, and the ring plate is fixedly connected to the inner wall of the tank. The side plate 1 and the side plate 2 are rotatably connected to a material separator cylinder, and the shaft 1 is rotatably connected to a connecting frame. The connecting frame is located on one side of the side plate 2 and is fixedly connected to the material separator cylinder. An arc-shaped plate is fixed on one side of each of the side plates. The rotating shaft 2 is fitted with the inner wall of the arc-shaped plate. A buffer plate is fixed at one end of the arc-shaped plate. The buffer plate is used to reduce the impact of the magnet plate on the material separator cylinder. A magnetic shielding plate is fixed between side plate one and side plate two, and the magnetic shielding plate is located between the magnet plate and the material separator cylinder.

[0010] The low-friction feeding mechanism includes a second bevel gear meshing with one side of the first bevel gear. A reciprocating screw is fixed inside the second bevel gear. A mounting plate is rotatably connected to the outside of the reciprocating screw. The mounting plate is fixedly connected to the outer wall of the tank. A movable frame is threaded onto the outside of the reciprocating screw. A second mounting plate is fixed to the outer wall of the trough. A guide rod is fixed to one side of the second mounting plate. A second movable frame is sleeved on the outside of the guide rod. A collection box is fixed between the first movable frame and the second movable frame. A rubber scraper is fixed to the top edge of the collection box. A sliding plate is fixed to the inner wall of the collection box. A rubber plate is fixed to one side of the sliding plate. A discharge port and a return port are opened at the bottom of the collection box. A receiving hopper is fixed to the outer wall of the trough.

[0011] The rolling dewatering mechanism includes grooves formed on the inner walls of both sides of the collection box. Slider blocks are fitted inside the grooves. Squeezing rollers are rotatably connected to the opposite sides of the two sliders. Springs are fixed between the sliders and the inner walls of the grooves.

[0012] A controller is fixed to one side of the tank, and the controller is electrically connected to the motor.

[0013] Compared with existing technologies, the beneficial effects of this invention are: 1. This invention uses a low-friction magnetic adsorption sorting mechanism to rotate the magnet and the drum synchronously. Then, at the position where the material needs to be unloaded, the magnet is moved away from the separator cylinder to facilitate unloading. Furthermore, the structure reduces the magnetic attraction of the heavy medium, which solves the problem of friction caused by the heavy medium on the surface of the separator cylinder due to the asynchronous operation of the separator cylinder and the magnet. This reduces the friction on the separator cylinder and ensures its service life. 2. This invention uses a low-friction feeding mechanism and a rolling dehydration mechanism in conjunction with a low-friction magnetic adsorption sorting mechanism to cover the heavy medium during feeding, preventing the heavy medium from sliding down the separator and accumulating at the discharge port, which would cause friction and affect the service life of the drum. Furthermore, the heavy medium is rolled to allow the moisture contained in the heavy medium to flow back into the separation chamber, solving the problem of the heavy medium carrying out too much of other substances and improving the efficiency of subsequent separation and processing. 3. This invention reduces air pollution caused during the iron removal process by using a wet iron removal method. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of a wet mineral powder separation and iron removal device based on air pollution control proposed in this invention.

[0015] Figure 2This is a second-view structural schematic diagram of a wet mineral powder separation and iron removal device based on air pollution control proposed in this invention.

[0016] Figure 3 This is a cross-sectional structural schematic diagram of a wet mineral powder separation and iron removal device based on air pollution control proposed in this invention.

[0017] Figure 4 This is a schematic diagram of the internal three-dimensional structure of the separator cylinder of a wet mineral powder separation and iron removal device based on air pollution control proposed in this invention.

[0018] Figure 5 This is a schematic diagram of the circular plate cross-sectional structure of a wet mineral powder separation and iron removal device based on air pollution control proposed in this invention.

[0019] Figure 6 This is a schematic diagram of the low-friction feeding mechanism of a wet mineral powder separation and iron removal equipment based on air pollution control proposed in this invention.

[0020] In the picture: 1. Support frame; 2. Diversion mechanism; 21. Feed bin; 22. Separation bin; 23. Discharge bin; 24. Discharge pipe; 25. Tank; 3. Magnetic adsorption sorting mechanism; 31. Motor bracket; 32. Motor; 33. Rotating shaft one; 34. Circular plate; 35. Telescopic groove; 36. Spring one; 37. Movable plate; 38. Magnetic plate; 39. Rotating shaft two; 310. Arc plate; 311. Buffer plate; 312. Magnetic shielding plate; 313. Ring plate; 314. Side plate one; 315. Side plate two; 316. Connecting frame; 317. Bevel gear one; 318. Material separator cylinder; 4. Low-friction feeding mechanism; 41. Mounting plate one; 42. Reciprocating screw; 43. Bevel gear two; 44. Moving frame one; 45. Mounting plate two; 46. Guide rod; 47. Moving frame two; 48. Collection box; 49. Discharge port; 410. Return port; 411. Rubber scraper; 412. Sliding plate; 413. Rubber plate; 414. Receiving hopper; 5. Roller dewatering mechanism; 51. Slide groove; 52. Spring 2; 53. Sliding block; 54. Extrusion roller. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] Example: Refer to Figures 1-6 A wet mineral powder separation and iron removal device based on air pollution control includes a support frame 1, a diversion mechanism 2, a low-friction magnetic adsorption separation mechanism 3, a low-friction feeding mechanism 4, and a rolling dewatering mechanism 5. The low-friction magnetic adsorption separation mechanism 3 is connected to the diversion mechanism 2 to separate the iron in the slurry from the slurry, and after separation, it uses low-friction technology to output the iron to the diversion mechanism 2. The diversion mechanism 2 is installed on the support frame 1 and is used to input the slurry so that the slurry can fully contact the low-friction magnetic adsorption separation mechanism 3. The low-friction feeding mechanism 4 is connected to the diversion mechanism 2 and is used to separate the iron adsorbed by the low-friction magnetic adsorption sorting mechanism 3. The rolling dewatering mechanism 5 is installed inside the low-friction feeding mechanism 4 and is used to control the content of other substances in the iron material.

[0025] The diversion mechanism 2 includes a trough 25 fixed in the support frame 1. The inside of the trough 25 is provided with a feeding chamber 21, a separation chamber 22 and a discharge chamber 23. The feeding chamber 21 is connected to the separation chamber 22, and the separation chamber 22 is connected to the discharge chamber 23. The discharge chamber 23 is connected to multiple discharge pipes 24, and the discharge pipes 24 pass through the feeding chamber 21 and are fixed to the bottom of the trough 25.

[0026] The low-friction magnetic adsorption sorting mechanism 3 includes a motor bracket 31 fixed on one side of the tank 25, a motor 32 fixed on the top of the motor bracket 31, a rotating shaft 33 fixed at one end of the output shaft of the motor 32, the rotating shaft 33 being rotatably connected inside the tank 25, and a bevel gear 317 fixed at the end of the rotating shaft 33 away from the motor 32. Two circular plates 34 are fixed to the outside of the rotating shaft 33. Multiple telescopic grooves 35 are provided on the annular wall of the circular plates 34. Multiple magnetic plates 38 are provided on the outer circumference of the two circular plates 34. Two movable plates 37 are fixed on the side of the magnetic plates 38 near the circular plates 34. The movable plates 37 are fitted inside the telescopic grooves 35. A spring 36 is fixed between the movable plates 37 and the telescopic grooves 35. Multiple rotating shafts 39 corresponding to the movable plates 37 are provided on the side of the two circular plates 34 that are far apart. The rotating shafts 39 are rotatably connected to the movable plates 37.

[0027] The low-friction magnetic adsorption sorting mechanism 3 also includes a side plate 314 and a side plate 315 rotatably connected to the outside of the rotating shaft 33. A ring plate 313 is fixed on one side of the side plate 314 and the ring plate 313 is fixedly connected to the inner wall of the tank 25. A material separator 318 is rotatably connected to the outside of side plate 1 314 and side plate 2 315. A connecting frame 316 is rotatably connected to the outside of rotating shaft 1 33. The connecting frame 316 is located on one side of side plate 2 315 and is fixedly connected to the material separator 318. An arc-shaped plate 310 is fixed on the opposite side of side plate 314 and side plate 315. The rotating shaft 39 is matched with the inner wall of the arc-shaped plate 310. A buffer plate 311 is fixed at one end of the arc-shaped plate 310. The buffer plate 311 is used to reduce the impact of the magnet plate 38 on the material separator cylinder 318. A magnetic shielding plate 312 is fixed between side plate 314 and side plate 315. The magnetic shielding plate 312 is located between the magnet plate 38 and the material separator 318.

[0028] The low-friction feeding mechanism 4 includes a second bevel gear 43 that meshes with one side of the first bevel gear 317. A reciprocating screw 42 is fixed inside the second bevel gear 43. A mounting plate 41 is rotatably connected to the outside of the reciprocating screw 42. The mounting plate 41 is fixedly connected to the outer wall of the groove 25. A movable frame 44 is threaded on the outside of the reciprocating screw 42. A mounting plate 25 is fixed to the outer wall of the tank 25. A guide rod 46 is fixed to one side of the mounting plate 25. A movable frame 2 47 is sleeved on the outside of the guide rod 46. A collection box 48 is fixed between the movable frame 1 44 and the movable frame 2 47. A rubber scraper 411 is fixed to the top edge of the collection box 48. A sliding plate 412 is fixed to the inner wall of the collection box 48. A rubber plate 413 is fixed to one side of the sliding plate 412. A discharge port 49 and a return port 410 are opened at the bottom of the collection box 48. A receiving hopper 414 is fixed to the outer wall of the tank 25.

[0029] The rolling dewatering mechanism 5 includes grooves 51 formed on the inner walls of both sides of the collection box 48. Slider 53 is fitted inside the grooves 51. Squeeze rollers 54 are rotatably connected to the opposite side of the two sliders 53. Springs 52 are fixed between the sliders 53 and the inner wall of the grooves 51.

[0030] A controller is fixed on one side of the tank 25, and the controller is electrically connected to the motor 32.

[0031] Working principle: The slurry is added from the top of the feed hopper 21. After the feed hopper 21 is filled, it enters the separation hopper 22 and comes into contact with the low-friction magnetic adsorption separation mechanism 3. The low-friction magnetic adsorption separation mechanism 3 uses magnetic force to adsorb the iron material inside onto the outer wall of the separator cylinder 318. The low-friction magnetic adsorption separation mechanism 3 can rotate to remove the adsorbed iron material from the top of the separation hopper 22 and out of the diversion mechanism 2. Other materials will enter the discharge hopper 23 with the liquid in the slurry and then be discharged from the tank 25 through the discharge pipe 24. The controller controls motor 32 to drive shaft 33 to rotate. The rotation of shaft 33 drives connecting frame 316 to rotate, which in turn drives material separator 318 to rotate. Shaft 33 synchronously drives circular plate 34, spring 36, movable plate 37, magnetic plate 38, and shaft 39 to rotate. Side plate 314 is limited by ring plate 313 and cannot rotate with it. Simultaneously, magnetic plate 312 is stationary, causing side plate 315 to also remain stationary. Side plates 314 and 315, along with arc plate 310 and buffer plate 311, are also stationary. Since magnetic plate 38 rotates at the same speed as material separator 318, the rotation of magnetic plate 38 and material separator 318 will... The iron material adsorbed in the separation chamber 22 is carried out of the separation chamber 22. During the rotation, the rotating shaft 39 contacts the inner wall of the arc plate 310 and then rolls along the inner wall of the arc plate 310. Because the distance between one end of the arc plate 310 and the inner wall of the separator cylinder 318 gradually increases, the rotating shaft 39 will push the movable plate 37 to squeeze the spring 36 as it moves along the inner wall of the arc plate 310, causing the movable plate 37 to retract into the telescopic groove 35. This causes the movable plate 37 to move the magnetic plate 38 away from the separator cylinder 318 and into the bottom of the magnetic isolation plate 312. The magnetic isolation plate 312 further isolates the magnetic material and reduces the attraction with the iron material, making it easier for the rubber scraper 411 to smoothly separate the iron material from the separator cylinder 318. The rotation of the magnetic plate 38 and the separating cylinder 318 carries the iron material adsorbed in the separation chamber 22 out of the separation chamber 22, and then enters the space between the collection box 48 and the separating cylinder 318 through the return port 410. The rotation of the rotating shaft 33 synchronously drives the rotation of the bevel gear 317, which in turn drives the rotation of the bevel gear 43 and the reciprocating screw 42, causing the moving frame 44 to move back and forth. When one of the magnetic plates 38 and the separating cylinder 318 moves the iron material between the collection box 48 and the separating cylinder 318, the rubber scraper 411 and the rubber plate 413 of the collection box 48 come into contact with the separating cylinder 318, covering the iron material adsorbed by the magnetic plate 38 through the separating cylinder 318 with the rubber scraper 411 and the separating cylinder 318. Between the rubber plates 413, the iron material adsorbed by the next magnetic plate 38 enters from the return port 410 and is about to come into contact with the surface of the extrusion roller 54. As the magnetic plate 38 and the separator cylinder 318 continue to rotate, the collection box 48 continues to push the rubber scraper 411 and the rubber plate 413 to press the surface of the separator cylinder 318. The iron material on the surface of the rotating separator cylinder 318 is scraped off by the rubber scraper 411 and falls to the top of the sliding plate 412 (here the magnetic plate 38 and the separator cylinder 318 have been separated by the arc plate 310 and blocked by the magnetic shielding plate 312, and the attraction to the iron material is weakened). Then it slides along the sliding plate 412 to the bottom of the collection box 48 and falls from the discharge port 49 to the top of the receiving hopper 414. At the same time, the extrusion roller 54 is pushed by the second spring 52 and comes into close contact with the iron material, applying pressure to the iron material to squeeze out the water contained in the iron material (here the magnetic plate 38 and the separator cylinder 318 are still in a close fit, and the attraction to the iron material is also strong). The squeezed water contains other minerals, which enter the separation chamber 22 through the return port 410 and then enter the discharge chamber 23 along with the water, and are then discharged. Then the moving frame 44 moves to the end of the reciprocating screw 42, and then drives the collection box 48 away from the separator cylinder 318. Then the squeezed iron material enters the rubber scraper plate 411 and the rubber plate 413 to be scraped away. Then, the above steps are followed to achieve continuous magnetic separation.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wet mineral powder separation and iron removal device based on air pollution control, comprising a support frame (1), characterized in that, It also includes a diversion mechanism (2), a low-friction magnetic adsorption sorting mechanism (3), a low-friction feeding mechanism (4), and a rolling dewatering mechanism (5); The low-friction magnetic adsorption separation mechanism (3) is connected to the diversion mechanism (2) to separate the iron in the slurry from the slurry, and after separation, it is output to the diversion mechanism (2) using low-friction technology. The diversion mechanism (2) is installed on the support frame (1) and is used to input slurry so that the slurry can fully contact the low-friction magnetic adsorption separation mechanism (3); The low-friction feeding mechanism (4) is connected to the diversion mechanism (2) and is used to separate the iron adsorbed by the low-friction magnetic adsorption sorting mechanism (3); The rolling dewatering mechanism (5) is installed inside the low-friction feeding mechanism (4) and is used to control the content of other substances in the iron material.

2. The wet mineral powder separation and iron removal equipment based on air pollution control according to claim 1, characterized in that, The diversion mechanism (2) includes a trough (25) fixed in the support frame (1). The inside of the trough (25) is provided with a feeding chamber (21), a separation chamber (22) and a discharge chamber (23). The feeding chamber (21) is connected to the separation chamber (22), and the separation chamber (22) is connected to the discharge chamber (23). The discharge chamber (23) is connected to a plurality of discharge pipes (24). The discharge pipes (24) pass through the feeding chamber (21) and are fixed at the bottom of the trough (25).

3. The wet mineral powder separation and iron removal equipment based on air pollution control according to claim 2, characterized in that, The low-friction magnetic adsorption sorting mechanism (3) includes a motor bracket (31) fixed on one side of the tank (25), a motor (32) fixed on the top of the motor bracket (31), a rotating shaft (33) fixed at one end of the output shaft of the motor (32), the rotating shaft (33) being rotatably connected inside the tank (25), and a bevel gear (317) fixed at the end of the rotating shaft (33) away from the motor (32). Two circular plates (34) are fixed to the outside of the rotating shaft (33). Multiple telescopic grooves (35) are provided on the annular wall of the circular plates (34). Multiple magnet plates (38) are provided on the outer circumference of the two circular plates (34). Two movable plates (37) are fixed on the side of the magnet plates (38) close to the circular plates (34). The movable plates (37) are sleeved inside the telescopic grooves (35). A spring (36) is fixed between the movable plates (37) and the telescopic grooves (35). Multiple rotating shafts (39) corresponding to the movable plates (37) are provided on the side of the two circular plates (34) that are far apart. The rotating shafts (39) are rotatably connected to the movable plates (37).

4. The wet mineral powder separation and iron removal equipment based on air pollution control according to claim 3, characterized in that, The low-friction magnetic adsorption sorting mechanism (3) also includes a side plate (314) and a side plate (315) rotatably connected to the outside of the rotating shaft (33). A ring plate (313) is fixed on one side of the side plate (314), and the ring plate (313) is fixedly connected to the inner wall of the tank (25). The side plate 1 (314) and the side plate 2 (315) are rotatably connected to a material separator (318), and the shaft 1 (33) is rotatably connected to a connecting frame (316). The connecting frame (316) is located on one side of the side plate 2 (315), and the connecting frame (316) is fixedly connected to the material separator (318). An arc-shaped plate (310) is fixed on the opposite side of the first side plate (314) and the second side plate (315). The second rotating shaft (39) is matched with the inner wall of the arc-shaped plate (310). A buffer plate (311) is fixed at one end of the arc-shaped plate (310). A magnetic shielding plate (312) is fixed between the first side plate (314) and the second side plate (315), and the magnetic shielding plate (312) is located between the magnet plate (38) and the material separator (318).

5. The wet mineral powder separation and iron removal equipment based on air pollution control according to claim 4, characterized in that, The low-friction feeding mechanism (4) includes a bevel gear two (43) meshing with one side of bevel gear one (317). A reciprocating screw (42) is fixed inside the bevel gear two (43). A mounting plate one (41) is rotatably connected to the outside of the reciprocating screw (42). The mounting plate one (41) is fixedly connected to the outer wall of the groove (25). A movable frame one (44) is threaded on the outside of the reciprocating screw (42). The outer wall of the trough (25) is fixed with a second mounting plate (45), a guide rod (46) is fixed on one side of the second mounting plate (45), a second movable frame (47) is sleeved on the outside of the guide rod (46), a collection box (48) is fixed between the first movable frame (44) and the second movable frame (47), a rubber scraper (411) is fixed on the top edge of the collection box (48), a sliding plate (412) is fixed on the inner wall of the collection box (48), a rubber plate (413) is fixed on one side of the sliding plate (412), a discharge port (49) and a return port (410) are opened at the bottom of the collection box (48), and a receiving hopper (414) is fixed on the outer wall of the trough (25).

6. The wet mineral powder separation and iron removal equipment based on air pollution control according to claim 5, characterized in that, The rolling dewatering mechanism (5) includes a slide groove (51) opened on the inner wall of both sides of the collection box (48). A slider (53) is sleeved inside the slide groove (51). A squeezing roller (54) is rotatably connected to the opposite side of the two sliders (53). A spring (52) is fixed between the slider (53) and the inner wall of the slide groove (51).

7. The wet mineral powder separation and iron removal equipment based on air pollution control according to claim 6, characterized in that, A controller is fixed on one side of the tank (25), and the controller is electrically connected to the motor (32).

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