A refining and screening device for fine iron ore concentrate

Abstract

This invention discloses a fine screening device for refining iron concentrate, comprising a screen frame and a screen body. The screen body is disposed inside the screen frame, and the surface of the screen frame has through holes. A reciprocating moving component is movably installed on the through holes. A drive motor that provides power to the reciprocating moving component is fixedly installed on the side of the screen frame corresponding to the reciprocating moving component. This invention effectively solves the problems of low iron concentrate recovery rate and severe local wear of the screen when the existing electromagnetic vibrating high-frequency screen processes high-concentration, high-viscosity slurry, due to the slurry flowing in streams. The sweeping rod of the sweeping component can flatten the thick layer of slurry on the screen body, preventing the slurry from agglomerating and providing conditions for iron concentrate particles to pass through the screen. The cross lever of the lever component rotates while reciprocating, which can thoroughly disperse the undispersed slurry clumps and ensure that the iron concentrate particles are in full contact with the screen body.

Description

Technical Field

[0001] This invention relates to the field of iron concentrate processing equipment technology, and in particular to a fine screening device for refining iron concentrate. Background Technology

[0002] In the refining process of iron concentrate, fine screening is a key step in improving iron grade and reducing impurity content. Currently, the industry generally uses electromagnetic vibrating high-frequency screens for iron concentrate as the core screening equipment. This equipment uses an electromagnetic vibrator to generate high-frequency vibration, driving the screen to finely classify the slurry. Its screen usually adopts a multi-layer composite structure, combined with a large screen inclination angle, which can effectively improve the screening rate of fine-grained iron concentrate. In actual production, electromagnetic vibrating high-frequency screens play an important role in iron concentrate dewatering, desliming, and particle size classification operations due to their advantages such as adjustable vibration frequency, stable amplitude, and large processing capacity. They are commonly used equipment in concentrators to improve the quality of iron concentrate.

[0003] However, long-term application has revealed significant shortcomings of the aforementioned electromagnetic vibrating high-frequency screen for iron concentrate when processing high-concentration or high-viscosity slurries. Specifically, after the slurry (mud) falls onto the screen surface, it should be evenly dispersed into a thin layer due to vibration. However, due to the surface tension of the screen and the cohesive force of the mud itself, some mud fails to disperse sufficiently and instead converges into a continuous stream that slides rapidly down the screen. Although high-frequency vibration can produce a certain shearing and dispersing effect on the stream, a considerable portion of the mud still passes through the screen surface in a stream state due to the limited vibration direction and amplitude. This stream flow prevents the iron concentrate particles inside the stream from effectively contacting the screen, thus losing the opportunity to pass through the screen and being directly lost with the tailings, resulting in a decrease in the iron concentrate recovery rate. At the same time, the stream mud causes erosive wear on local areas of the screen, exacerbating the uneven failure of the screen.

[0004] Therefore, how to provide a fine screening device for the refining of iron concentrate is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One object of the present invention is to provide a fine screening device for the refining of iron concentrate, which solves the problems mentioned in the background art.

[0006] According to an embodiment of the present invention, a fine screening device for refining iron concentrate includes a screen frame and a screen body. The screen body is disposed inside the screen frame. A through hole is opened on the surface of the screen frame, and a reciprocating moving component is movably installed on the through hole. A drive motor for providing power to the reciprocating moving component is fixedly installed on the side of the screen frame corresponding to the reciprocating moving component. A lever assembly for dispersing iron ore slurry is provided at the bottom end of the reciprocating moving component.

[0007] The reciprocating motion assembly includes a reciprocating push rod, a reciprocating frame, a turntable, and a drive head. The reciprocating push rod is movably inserted into the through hole. The turntable is fixedly installed on the output shaft end of the drive motor. The drive head is fixedly installed on the upper surface of the turntable. The reciprocating frame is fixedly installed on the lower surface of the reciprocating push rod corresponding to the drive head by bolts. The drive head is movably inserted upward into the interior of the reciprocating frame.

[0008] The reciprocating push rod has a positioning slot on its side. The lever assembly includes a plug rod, a fixing slot, a toggle gear, a rotating lever, and a cross lever. The plug rod is movably inserted into the positioning slot and fixed by fixing bolts. The fixing slot is opened on the side and bottom of the plug rod. The toggle gear is rotatably installed inside the fixing slot. The rotating lever is fixedly installed at the bottom of the toggle gear. The cross lever is fixedly installed at the bottom of the rotating lever and is located close to the screen body.

[0009] A side positioning rod is fixedly installed on the inner side of the screen frame near the reciprocating push rod. The side positioning rod near the reciprocating push rod has a first strip-shaped tooth groove, and the actuating gear meshes with the first strip-shaped tooth groove.

[0010] The reciprocating movable component has two sets of reciprocating push rods and two sets of through holes. The two sets of reciprocating push rods are movably connected to the two sets of through holes respectively. The inner side of the screen frame is fixedly installed between the two sets of reciprocating movable components to drive the other set of reciprocating push rods. The two sets of reciprocating push rods are arranged symmetrically about the transmission component as the axis of symmetry.

[0011] The transmission assembly includes a fixed frame, a crossbar, a transmission shaft, a second toothed groove, a transmission gear, a synchronous pulley, and a synchronous belt. The fixed frame is fixedly installed on the inner side of the screen frame between two sets of reciprocating push rods. The crossbar is fixedly installed at the bottom of the fixed frame, with both ends of the crossbar facing the positions of the two sets of reciprocating push rods. There are two sets of transmission shafts, each rotatably installed at both ends of the crossbar. The second toothed groove is opened on the side of the reciprocating push rod near the crossbar. The transmission gear is fixedly installed at the bottom of the transmission shaft and meshes with the second toothed groove. There are also two sets of synchronous pulleys, each fixedly sleeved on the surface of the two sets of transmission shafts. Both ends of the synchronous belt are movably sleeved on the surface of the two sets of synchronous pulleys.

[0012] A sealing strip is provided on the side of the side positioning rod near the reciprocating push rod. A protective cover is fixedly installed on the lower surface of the crossbar near the second toothed groove and the transmission gear. One side of the protective cover is connected to the surface of the reciprocating push rod by a movable flexible sealing strip.

[0013] The lower surface of the fixed frame and the synchronous belt are provided with a leveling assembly for leveling thick iron ore slurry. The leveling assembly includes a movable rod, a telescopic rod, a clamp, and a leveling rod. The end of the movable rod away from the synchronous belt is rotatably mounted on the lower surface of the fixed frame. The movable rod is a storage rod. The telescopic rod is movably inserted into the interior of the movable rod, and one end of the telescopic rod extends to the exterior of the movable rod. The clamp is rotatably mounted on the end of the telescopic rod located outside the movable rod. The telescopic rod is fixedly sleeved on the surface of the synchronous belt. The leveling rod is fixedly mounted on the lower surface of the movable rod, and the bottom end of the leveling rod is set close to the surface of the screen body.

[0014] The lower surface of the sweeping rod has a beveled surface near the upper angle to facilitate sweeping.

[0015] The beneficial effects of this invention are:

[0016] This invention effectively solves the problems of low iron concentrate recovery rate and severe local wear of the screen caused by the slurry flowing in streams when processing high-concentration, high-viscosity slurries in existing electromagnetic vibrating high-frequency screens through the linkage design of reciprocating moving components, lever components, and leveling components. The leveling rod of the leveling component can flatten the thick layer of slurry on the screen body, preventing the slurry from agglomerating and providing conditions for iron concentrate particles to pass through the screen. The cross lever of the lever component rotates while reciprocating, which can thoroughly disperse the undispersed slurry clumps, ensuring that the iron concentrate particles are in full contact with the screen body and improving the recovery rate. At the same time, the two sets of reciprocating moving components move back and forth alternately, and work in conjunction with the transmission component to achieve synchronous linkage, eliminating the need for additional power drive and reducing energy consumption. The protective cover and sealing strip can prevent slurry from entering the transmission components and extend the service life of the equipment. Another effect not mentioned is that the equipment has a compact structure and is easy to disassemble and assemble. The distance between the leveling rod and the cross lever and the screen body can be adjusted according to the slurry concentration to adapt to the screening needs of different working conditions. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a fine screening device for refining iron concentrate proposed in this invention.

[0019] Figure 2 This is a three-dimensional structural diagram of the other side of a fine screening device for refining iron concentrate proposed in this invention.

[0020] Figure 3 This is a partial three-dimensional structural diagram of the reciprocating moving component and the transmission component in a fine screening device for refining iron concentrate according to the present invention.

[0021] Figure 4This is a three-dimensional structural diagram of the reciprocating agitator and drive motor in a fine screening device for refining iron concentrate according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the transmission component in a fine screening device for refining iron concentrate, as proposed in this invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the transmission component in a fine screening device for refining iron concentrate, as proposed in this invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the reciprocating moving component and the transmission component in a fine screening device for refining iron concentrate according to the present invention.

[0025] Figure 8 This invention proposes a fine screening device for refining iron concentrate. Figure 7 A magnified structural diagram of point A in the middle.

[0026] The attached diagram shows: 1. Screen frame; 2. Screen body; 3. Drive motor; 4. Through hole; 5. Reciprocating moving assembly; 6. Transmission assembly; 7. Sweeping assembly; 8. Reciprocating push rod; 9. Reciprocating frame; 10. Turntable; 11. Drive head; 12. Fixing groove; 13. Lever assembly; 14. Actuating gear; 15. Rotating lever; 16. Cross lever frame; 17. Side positioning rod; 18. First toothed groove; 19. Fixing frame; 20. Crossbar; 21. Drive shaft; 22. Second toothed groove; 23. Transmission gear; 24. Synchronous pulley; 25. Synchronous belt; 26. Moving rod; 27. Telescopic rod; 28. Clamp; 29. ​​Sweeping rod; 30. Protective cover; 31. Positioning slot; 32. Connecting rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0028] Example 1

[0029] refer to Figures 1-8In this embodiment, a screen frame 1 and a screen body 2 are included. The screen body 2 is disposed inside the screen frame 1. A through hole 4 is provided on the surface of the screen frame 1. A reciprocating moving component 5 is movably installed on the through hole 4. A drive motor 3 that provides power to the reciprocating moving component 5 is fixedly installed on the side of the screen frame 1 corresponding to the reciprocating moving component 5. The reciprocating moving component 5 includes a reciprocating push rod 8, a reciprocating frame 9, a turntable 10, and a drive head 11. The reciprocating push rod 8 is movably inserted into the through hole 4. The turntable 10 is fixedly installed on the output shaft end of the drive motor 3. The drive head 11 is fixedly installed on the upper surface of the turntable 10. The reciprocating frame 9 is fixedly installed on the lower surface of the reciprocating push rod 8 corresponding to the drive head 11 by bolts. The drive head 11 is movably inserted upward into the interior of the reciprocating frame 9.

[0030] In practice, the screen frame 1 provides a stable installation foundation for the entire equipment, ensuring that the screen body 2 will not shift due to vibration or component movement after installation. The through hole 4 is square in shape and can guide and limit the reciprocating push rod 8, preventing tilting and jamming when the reciprocating push rod 8 moves back and forth. The drive motor 3 serves as the power source and can stably output the rotation speed, driving the turntable 10 to rotate at a uniform speed. This drives the head 11 to cooperate with the reciprocating frame 9, converting the circular motion of the turntable 10 into the linear reciprocating motion of the reciprocating frame 9, thereby driving the reciprocating push rod 8 to move smoothly along the through hole 4. This provides stable power for the subsequent action of the lever assembly 13 and the sweeping assembly 7. The bolt fixing method facilitates the disassembly and maintenance of the reciprocating frame 9 and the reciprocating push rod 8, reducing equipment maintenance costs.

[0031] The bottom end of the reciprocating movable component 5 is provided with a lever assembly 13 for dispersing iron ore slurry. The side of the reciprocating push rod 8 is provided with a positioning slot 31. The lever assembly 13 includes a plug rod 32, a fixing slot 12, a toggle gear 14, a rotating lever 15, and a cross lever 16. The plug rod 32 is movably inserted into the inside of the positioning slot 31 and fixed by fixing bolts. The fixing slot 12 is opened on the side and bottom of the plug rod 32. The toggle gear 14 is rotatably installed inside the fixing slot 12. The rotating lever 15 is fixedly installed at the bottom of the toggle gear 14. The cross lever 16 is fixedly installed at the bottom end of the rotating lever 15 and is located close to the screen body 2.

[0032] In practice, the positioning slot 31 and the plug rod 32 cooperate to enable the quick docking of the lever assembly 13 and the reciprocating push rod 8. The fixing bolts ensure a stable connection between the two and prevent the lever assembly 13 from loosening and falling off when it moves with the reciprocating push rod 8. The fixing groove 12 provides installation space for the actuating gear 14 and also limits its movement to prevent the actuating gear 14 from shifting when it rotates. The cross lever 16 is positioned close to the screen body 2 with a spacing controlled between 0.5 and 1 cm, which can accurately act on the slurry on the surface of the screen body 2. Its cross structure can effectively break up slurry clumps and prevent the slurry from flowing in streams. The rotating lever 15 can transmit the rotational power of the actuating gear 14 to the cross lever 16 to realize the rotational breaking action of the cross lever 16.

[0033] Example 2

[0034] refer to Figures 1-8 In this embodiment, a side positioning rod 17 is fixedly installed on the inner side of the screen frame 1 near the reciprocating push rod 8. The side positioning rod 17 has a first strip-shaped toothed groove 18 on the side near the reciprocating push rod 8. The actuating gear 14 meshes with the first strip-shaped toothed groove 18.

[0035] In specific implementation, the side positioning rod 17 is fixed inside the screen frame 1, which not only plays an auxiliary positioning role for the reciprocating push rod 8 to avoid left and right deviation during its reciprocating movement, but also provides an installation carrier for the first strip toothed groove 18. The mutual meshing of the actuating gear 14 and the first strip toothed groove 18 can convert the linear reciprocating motion of the reciprocating push rod 8 into the reciprocating rotational motion of the actuating gear 14. No additional power is needed to drive the actuating gear 14, saving energy consumption. At the same time, the reciprocating movement and rotation of the cross actuating frame 16 are synchronized, improving the slurry dispersion effect and ensuring that the slurry is fully dispersed.

[0036] Example 3

[0037] The reciprocating movable assembly 5 has two sets of reciprocating push rods 8 and two sets of through holes 4. The two sets of reciprocating push rods 8 are movably connected to the two sets of through holes 4 respectively. A transmission assembly 6 that drives the other set of reciprocating push rods 8 is fixedly installed on the inner side of the screen frame 1 between the two sets of reciprocating movable assemblies 5. The two sets of reciprocating push rods 8 are axially symmetrical about the transmission assembly 6. The transmission assembly 6 includes a fixed frame 19, a crossbar 20, a transmission shaft 21, a second strip toothed groove 22, a transmission gear 23, a synchronous pulley 24, and a synchronous belt 25. The fixed frame 19 is fixedly installed on the inner side of the screen frame 1 between the two sets of reciprocating push rods 8. The crossbar 20 is fixedly installed at the bottom of the fixed frame 19. The two ends of the crossbar 20 are respectively facing the positions of the two sets of reciprocating push rods 8. There are two sets of transmission shafts 21, which are rotatably installed at the two ends of the crossbar 20. The second strip toothed groove 22 is opened on the side of the reciprocating push rod 8 near the crossbar 20. The transmission gear 23 is fixedly installed at the bottom end of the transmission shaft 21 and meshes with the second strip toothed groove 22. There are also two sets of synchronous pulleys 24, which are fixedly sleeved on the surfaces of the two sets of transmission shafts 21. The two ends of the synchronous belt 25 are movably sleeved on the surfaces of the two sets of synchronous pulleys 24.

[0038] In practice, the two sets of reciprocating push rods 8 are arranged symmetrically on an axis, which can achieve full coverage of the slurry on the surface of the screen body 2, avoiding the occurrence of scattered and leveled blind spots. The fixed frame 19 provides a stable installation base for each component of the transmission assembly 6. The crossbar 20 can provide positioning support for the two sets of transmission shafts 21, ensuring their smooth rotation. The meshing of the second strip toothed groove 22 with the transmission gear 23 can convert the linear motion of one set of reciprocating push rods 8 into the rotational motion of the transmission shaft 21. The cooperation between the synchronous pulley 24 and the synchronous belt 25 can realize the synchronous reverse rotation of the two sets of transmission shafts 21, thereby driving the two sets of reciprocating push rods 8 to move back and forth alternately, improving the slurry processing efficiency, while reducing the force on a single reciprocating push rod 8 and extending the service life of the equipment.

[0039] Example 4

[0040] A sealing strip is provided on the side of the side positioning rod 17 near the reciprocating push rod 8. A protective cover 30 is fixedly installed on the lower surface of the crossbar 20 near the second toothed groove 22 and the transmission gear 23. One side of the protective cover 30 is connected to the surface of the reciprocating push rod 8 by a movable flexible sealing strip.

[0041] In practice, the sealing strip on the side positioning rod 17 can fill the gap between the reciprocating push rod 8 and the side positioning rod 17. The sealing strip is a movable sealing strip, which can also fill the gap between the side positioning rod 17 and the reciprocating push rod 8 when it is in motion. It fills the gap in an elastic way to prevent slurry from entering the gap between the two and causing the components to jam or wear. The protective cover 30 can effectively block the slurry and prevent the slurry from adhering to the surface of the second strip toothed groove 22, the transmission gear 23 and other transmission components, preventing tooth blockage and gear wear, and ensuring the stable operation of the transmission component 6. The movable flexible sealing strip can adapt to the reciprocating movement of the reciprocating push rod 8 and always maintain the sealing effect, while not affecting the normal movement of the reciprocating push rod 8, further improving the protective performance of the equipment.

[0042] Example 5

[0043] The lower surface of the fixed frame 19 and the synchronous belt 25 are provided with a leveling assembly 7 for leveling thick iron ore slurry. The leveling assembly 7 includes a movable rod 26, a telescopic rod 27, a clamp 28, and a leveling rod 29. The end of the movable rod 26 away from the synchronous belt 25 is rotatably mounted on the lower surface of the fixed frame 19. The movable rod 26 is a storage rod. The telescopic rod 27 is movably inserted into the interior of the movable rod 26, and one end of the telescopic rod 27 extends to the exterior of the movable rod 26. The clamp 28 is rotatably mounted on the end of the telescopic rod 27 located outside the movable rod 26. The telescopic rod 27 is fixedly sleeved on the surface of the synchronous belt 25. The leveling rod 29 is fixedly mounted on the lower surface of the movable rod 26, and the bottom end of the leveling rod 29 is located close to the surface of the screen body 2. The lower surface of the leveling rod 29 has a beveled surface near the upper side to facilitate leveling.

[0044] In practice, the movable rod 26 serves as a storage rod, and the extension length of the telescopic rod 27 can be adjusted according to the width of the screen body 2 to adapt to screens of different sizes. The clamp 28 ensures that the telescopic rod 27 is securely connected to the synchronous belt 25. The movement of the synchronous belt 25 can drive the telescopic rod 27 to move synchronously, thereby driving the movable rod 26 to rotate around the fixed frame 19, realizing the swinging and leveling action of the leveling rod 29. The beveled surface of the leveling rod 29 can reduce the resistance to the slurry during the leveling process, improve the leveling efficiency, and at the same time prevent the slurry from accumulating at the bottom of the leveling rod 29. The distance between the leveling rod 29 and the screen body 2 is controlled at 0.5-1 cm, which can level the thick layer of slurry without abrading the screen body 2, creating conditions for the iron concentrate to pass through the screen.

[0045] The working principle of this invention is:

[0046] In use, first install the screen body 2 inside the screen frame 1. Installation using existing technology will not be detailed here. Start the drive motor 3, which drives the turntable 10 to rotate. The turntable 10 drives the drive head 11 in a circular motion, which in turn drives the reciprocating frame 9 to move back and forth. This, in turn, drives the reciprocating push rod 8 to move back and forth along the through hole 4. This achieves stable power output for the reciprocating moving component 5, providing a foundation for subsequent slurry processing. When the reciprocating push rod 8 moves, it drives the lever assembly 13 to move synchronously. The lever assembly 13's actuating gear 14 engages with the first strip-shaped toothed groove 18 of the side positioning rod 17, causing it to rotate back and forth. This, in turn, drives the cross lever 16 to move back and forth and rotate simultaneously via the rotating lever 15, effectively breaking up slurry clumps, preventing the slurry from flowing in streams, ensuring sufficient contact between iron concentrate particles and the screen body 2, and improving the recovery rate. When a set of reciprocating push rods 8 moves, the second strip-shaped toothed groove 22 drives the transmission gear 23 of the transmission component 6 to rotate back and forth. The transmission gear 23 drives the transmission shaft 21 to rotate, which in turn drives the synchronous pulley 24 to rotate. Through the synchronous belt 25, the synchronous pulley 24 rotates in the opposite direction, causing the transmission shaft 21 to drive the corresponding transmission gear 23 to rotate reciprocally. This, in turn, drives the reciprocating push rod 8 to move in opposite directions, expanding the slurry processing range and improving processing efficiency. When the synchronous belt 25 moves, it pulls the clamp 28 to move reciprocally. The clamp 28 drives the telescopic rod 27 to swing reciprocally and move reciprocally within the movable rod 26. This, in turn, drives the movable rod 26 to swing. The movable rod 26 drives the leveling rod 29 to swing between the two sets of reciprocating push rods 8 to level the slurry, preventing thick layers of slurry from obstructing the screen and further improving the screening effect. The protective cover 30 and the sealing strip prevent slurry from entering the transmission components, ensuring stable operation of the equipment. The overall structure solves the problem of slurry flowing in streams in existing equipment. Another unmentioned effect is that it can adapt to the screening needs of screens with different concentrations and widths, and has low energy consumption and is easy to maintain.

[0047] 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 fine screening device for refining iron concentrate, characterized in that, The screen includes a screen frame (1) and a screen body (2). The screen body (2) is located inside the screen frame (1). The surface of the screen frame (1) has a through hole (4). A reciprocating component (5) is movably installed on the through hole (4). A drive motor (3) that provides power to the reciprocating component (5) is fixedly installed on the side of the screen frame (1) corresponding to the reciprocating component (5). The bottom end of the reciprocating moving component (5) is provided with a lever assembly (13) for dispersing iron ore slurry.

2. The refining and screening equipment for iron concentrate refining according to claim 1, characterized in that, The reciprocating motion assembly (5) includes a reciprocating push rod (8), a reciprocating frame (9), a turntable (10), and a drive head (11). The reciprocating push rod (8) is movably inserted into the through hole (4). The turntable (10) is fixedly installed on the output shaft end of the drive motor (3). The drive head (11) is fixedly installed on the upper surface of the turntable (10). The reciprocating frame (9) is fixedly installed on the lower surface of the reciprocating push rod (8) corresponding to the drive head (11) by bolts. The drive head (11) is movably inserted upward into the interior of the reciprocating frame (9).

3. The refining and screening equipment for iron concentrate refining according to claim 2, characterized in that, The reciprocating push rod (8) has a positioning slot (31) on its side. The lever assembly (13) includes a plug rod (32), a fixing slot (12), a toggle gear (14), a rotating lever (15), and a cross lever (16). The plug rod (32) is movably inserted into the positioning slot (31) and fixed by a fixing bolt. The fixing slot (12) is opened on the side and bottom of the plug rod (32). The toggle gear (14) is rotatably installed inside the fixing slot (12). The rotating lever (15) is fixedly installed at the bottom of the toggle gear (14). The cross lever (16) is fixedly installed at the bottom end of the rotating lever (15). The cross lever (16) is set close to the screen body (2).

4. The refining and screening equipment for iron concentrate refining according to claim 3, characterized in that, A side positioning rod (17) is fixedly installed on the inner side of the screen frame (1) near the reciprocating push rod (8). A first strip tooth groove (18) is opened on the side of the side positioning rod (17) near the reciprocating push rod (8). The actuating gear (14) meshes with the first strip tooth groove (18).

5. The refining and screening equipment for iron concentrate refining according to claim 4, characterized in that, The reciprocating moving component (5) has two sets of reciprocating push rods (8) and two sets of through holes (4). The two sets of reciprocating push rods (8) are movably connected to the two sets of through holes (4). The inner side of the screen frame (1) is fixedly installed between the two sets of reciprocating moving components (5) to drive the other set of reciprocating push rods (8). The two sets of reciprocating push rods (8) are symmetrically arranged with the transmission component (6) as the axis of symmetry.

6. The refining and screening equipment for iron concentrate refining according to claim 5, characterized in that, The transmission assembly (6) includes a fixed frame (19), a crossbar (20), a transmission shaft (21), a second toothed groove (22), a transmission gear (23), a synchronous pulley (24), and a synchronous belt (25). The fixed frame (19) is fixedly installed on the inner side of the screen frame (1) between two sets of reciprocating push rods (8). The crossbar (20) is fixedly installed at the bottom of the fixed frame (19), with both ends of the crossbar (20) facing the positions of the two sets of reciprocating push rods (8). There are two sets of transmission shafts (21), with two sets of transmission shafts. The drive shaft (21) is rotatably installed at both ends of the crossbar (20). The second strip tooth groove (22) is opened on the side of the reciprocating push rod (8) near the crossbar (20). The transmission gear (23) is fixedly installed at the bottom end of the transmission shaft (21) and meshes with the second strip tooth groove (22). There are also two sets of synchronous pulleys (24). The two sets of synchronous pulleys (24) are fixedly sleeved on the surfaces of the two sets of transmission shafts (21). The two ends of the synchronous belt (25) are movably sleeved on the surfaces of the two sets of synchronous pulleys (24).

7. The refining and screening equipment for iron concentrate refining according to claim 6, characterized in that, The side positioning rod (17) is provided with a sealing strip on the side near the reciprocating push rod (8). A protective cover (30) is fixedly installed on the lower surface of the crossbar (20) near the second strip tooth groove (22) and the transmission gear (23). One side of the protective cover (30) is connected to the surface of the reciprocating push rod (8) by a movable flexible sealing strip.

8. The refining and screening equipment for iron concentrate refining according to claim 7, characterized in that, The lower surface of the fixed frame (19) and the synchronous belt (25) are provided with a leveling assembly (7) for leveling the thick iron ore slurry. The leveling assembly (7) includes a movable rod (26), a telescopic rod (27), a clamp (28) and a leveling rod (29). The end of the movable rod (26) away from the synchronous belt (25) is rotatably installed on the lower surface of the fixed frame (19). The movable rod (26) is a storage rod. The telescopic rod (27) is movably inserted into the interior of the movable rod (26), and one end of the telescopic rod (27) extends to the exterior of the movable rod (26). The clamp (28) is rotatably installed on the end of the telescopic rod (27) located outside the movable rod (26). The telescopic rod (27) is fixedly sleeved on the surface of the synchronous belt (25). The leveling rod (29) is fixedly installed on the lower surface of the movable rod (26), and the bottom end of the leveling rod (29) is set close to the surface of the screen body (2).

9. The refining and screening equipment for iron concentrate refining according to claim 8, characterized in that, The lower surface of the sweeping rod (29) has a beveled surface near the upper side for easy sweeping.

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