Magnetic separation device for recovering magnetic substances from solid waste

Abstract

The application discloses a solid waste magnetic substance magnetic separation recovery device, and relates to the technical field of solid waste recovery magnetic separation, which comprises a box body and a supporting frame fixedly connected to the bottom of the box body, a magnetic separation assembly is arranged in the box body, an opening is formed in the top outer wall of the box body, a feeding hopper is fixedly connected to the inside of the opening, a speed reduction assembly for reducing the speed of solid waste magnetic separation is arranged on one side of the feeding hopper, the magnetic separation assembly comprises fixing discs fixedly connected to the inner walls of the two sides of the box body, and the outer wall of one side of each fixing disc is fixedly connected with a fixing cylinder. The application realizes self-adaptive speed reduction and buffering of solid waste of different specifications, can slow down the falling speed of large-size solid waste, prevent high-speed impact of the solid waste on the cylinder body and cause equipment abrasion, can play a splash limiting role on small-size solid waste, and the automatic reset characteristic of the spring guarantees the continuity of solid waste treatment of the device and adapts to diversified solid waste magnetic separation requirements.

Description

Technical Field

[0001] This invention relates to the field of magnetic separation technology for solid waste recycling, and more specifically, to a magnetic separation and recycling device for magnetic materials in solid waste. Background Technology

[0002] In the field of solid waste resource recycling, magnetic separation of magnetic materials is a key processing step for achieving solid waste reduction and resource recovery. It is widely used in various scenarios such as industrial solid waste and municipal solid waste sorting. The operating efficiency and separation accuracy of magnetic separation devices directly affect the overall benefits of solid waste recycling. However, conventional magnetic separation devices currently on the market still have many unresolved technical defects in actual industrial applications, becoming an important factor restricting the efficient recovery of magnetic materials. The most prominent problem is the insufficient sufficiency of solid waste magnetic separation. After solid waste is fed into the inlet, there is no effective deceleration structure. The falling speed is fast, and it is easy to have violent collisions with the magnetic separation cylinder. This not only easily causes hard wear on equipment parts, but also, because some solid waste tends to clump together during collection and transportation, it cannot be effectively dispersed after high-speed collisions. As a result, the magnetic materials inside the clumps are tightly wrapped and cannot form sufficient contact with the magnetic field. Ultimately, this leads to the loss of magnetic materials and a significant reduction in the magnetic separation recovery rate, making it difficult to meet the sorting requirements of actual production.

[0003] Meanwhile, the existing magnetic separators lack versatility in their structural design, lacking an adaptive deceleration and buffer structure to accommodate solid waste of different sizes. When faced with mixed solid wastes exhibiting significant differences in particle size and volume, they cannot achieve targeted processing. For large-sized solid wastes, their weight and impact force during high-speed impacts on the cylinder can easily cause cylinder deformation and transmission structure failure, leading to equipment jamming and shutdown, increasing maintenance costs and downtime losses. For small-sized solid wastes, high-speed collisions can easily result in scattering, with some of the scattering escaping the magnetic field coverage area, preventing magnetic separation and further reducing the separation efficiency. Therefore, a magnetic separation and recovery device for magnetic materials in solid waste is urgently needed to solve these problems. Summary of the Invention

[0004] In response to the problems in related technologies, this invention proposes a magnetic separation and recovery device for magnetic materials in solid waste, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] The technical solution of this invention is implemented as follows: A magnetic separation and recycling device for magnetic materials in solid waste includes a box and a support frame fixedly connected to the bottom of the box. A magnetic separation component is installed inside the box. An opening is provided on the top outer wall of the box. A feed hopper is fixedly connected inside the opening. A deceleration component to reduce the magnetic separation speed of solid waste is provided on one side of the feed hopper. The magnetic separation assembly includes a fixed plate fixedly connected to the inner walls of both sides of the housing, a fixed cylinder fixedly connected to one outer wall of the fixed plate, a mounting plate fixedly connected to the outer circumference of the fixed cylinder, a permanent magnet fixedly connected to one outer wall of the mounting plate, and a cylinder sleeved on the outer circumference of the permanent magnet. Both ends of the cylinder are rotatably connected to the fixed cylinder. Both sides of the outer wall of the box are provided with discharge troughs, and both sides of the inner wall of the discharge trough are fixedly connected with guide plates for discharging solid waste after magnetic separation.

[0006] Preferably, the permanent magnet has a three-quarter circular cross-section. A motor is fixedly connected to one outer wall of the housing. A rotating column is fixedly connected to the output end of the motor. A gear disk is fixedly connected to the outer circumference of the rotating column. A gear ring is fixedly connected to the outer circumference of the cylinder. The gear ring meshes with the rotating column. Protective covers for preventing solid waste from falling into the gap at the end of the cylinder are fixedly connected to both inner walls of the housing. The outer circumference of the protective cover has a notch to facilitate the transmission between the gear disk and the rotating column.

[0007] Preferably, the outer circumferential wall of the cylinder is fixedly connected with connecting plates that are evenly distributed in a circular pattern. One side of the outer wall of the connecting plate is fixedly connected with equally spaced toothed blocks. The cross-section of the toothed blocks is an isosceles triangle. The outer circumferential wall of the cylinder is fixedly connected with a baffle strip. One baffle strip is located between two connecting plates. The cross-section of the baffle strip is wavy. The thickness of the baffle strip is the same as the thickness of the connecting plate.

[0008] Preferably, baffle plates are rotatably connected to the inner walls of both sides of the feed hopper, and a second spring is fixedly connected to the outer wall of one side of the baffle plate. The end of the second spring away from the baffle plate is fixedly connected to the inner wall of one side of the feed hopper.

[0009] Preferably, the bottom of the feed hopper is provided with a rotating groove, and both inner walls of the rotating groove are rotatably connected with baffles. A first spring is fixedly connected to one outer wall of the baffle, and the other end of the first spring is fixedly connected to one outer wall of the feed hopper.

[0010] Preferably, the shield includes a vertical portion and an arc-shaped portion, and the first spring is fixedly connected to one side of the outer wall of the vertical portion.

[0011] Preferably, the distance between the arc-shaped portion and the outer circumferential wall of the cylinder gradually increases from top to bottom, and one end of the guide plate located inside the box is located below the arc-shaped portion.

[0012] Preferably, an arc-shaped frame is fixedly connected to the outer wall of the mounting plate on the side away from the permanent magnet. The cross-section of the arc-shaped frame is Ω-shaped, and the outer circumferential wall of the arc-shaped frame is in contact with the inner circumferential wall of the cylinder.

[0013] Preferably, the deceleration assembly includes a second oil pipe fixedly connected to the inner wall of the top of the housing, one end of the second oil pipe being fixedly connected to a first oil pipe, a second piston body being disposed inside the second oil pipe, a second piston rod being fixedly connected to the inner circumferential wall of the second piston body, a fixed ball being fixedly connected to one end of the second piston rod extending from the inside of the second oil pipe, the fixed ball being located on one side of the baffle plate, a rotating seat being fixedly connected to one side of the outer wall of the vertical part, a rotating head being rotatably connected to one side of the rotating seat, a first piston rod being fixedly connected to the outer circumferential wall of the rotating head, a first piston body being fixedly connected to one end of the first piston rod, and the first piston body being located inside the first oil pipe.

[0014] Preferably, the top end of the first oil pipe is connected to one side of the outer wall of the second oil pipe, and one end of both the second oil pipe and the first oil pipe is provided with a one-way valve.

[0015] The beneficial effects of this invention are: This invention provides a magnetic separation and recovery device for magnetic materials in solid waste. By setting up a combination structure of connecting plate, toothed block and corrugated baffle strip, and cooperating with the rotational movement of the cylinder, it can achieve multi-stage dispersion and turbulence of solid waste, effectively breaking up solid waste agglomeration and preventing magnetic materials from being trapped. At the same time, the permanent magnet with a three-quarter circular cross-section realizes the adsorption and automatic detachment of magnetic materials. Combined with the precise flow guidance of the guide plate, magnetic and non-magnetic materials can be efficiently separated, which greatly improves the magnetic separation recovery rate and separation accuracy.

[0016] This invention provides a magnetic separation and recovery device for magnetic materials in solid waste. By setting up a hydraulic linkage deceleration assembly consisting of an oil pipe, a piston body, a spring, a baffle plate, and a baffle cover, it achieves adaptive deceleration and buffering for solid waste of different sizes. It can slow down the falling speed of large solid waste to prevent it from impacting the cylinder at high speed and causing equipment wear, and it can also play a splash-proof and limiting role for small solid waste. Moreover, the automatic reset characteristic of the spring ensures the continuity of solid waste treatment by the device, adapting to diverse solid waste magnetic separation needs.

[0017] This invention provides a magnetic separation and recovery device for magnetic materials in solid waste. By setting up a protective cover, an Ω-shaped arc frame, and a gradually spaced arc-shaped baffle, the device ensures operational stability and durability from multiple aspects. The protective cover prevents solid waste from falling into the gap at the end of the cylinder and causing jamming. The arc frame provides support and guidance for the rotation of the cylinder and reduces frictional loss. The arc-shaped part not only reserves space for the rotation of the cylinder but also provides stable guidance for the solid waste, preventing gap jamming and material splashing. At the same time, the coordinated operation of each component realizes the automated and continuous operation of magnetic separation and recovery of solid waste, reducing manual operation costs and improving overall operation efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the overall bottom structure of the present invention.

[0021] Figure 3 For the present invention Figure 2 A magnified structural diagram of point A in the middle.

[0022] Figure 4 This is a schematic cross-sectional planar view of the present invention.

[0023] Figure 5 For the present invention Figure 4 A magnified structural diagram at point B in the middle.

[0024] Figure 6 For the present invention Figure 4 A magnified structural diagram at point C.

[0025] Figure 7 This is a schematic diagram of the overall half-sectional planar structure of the deceleration component of the present invention.

[0026] Figure 8 This is a schematic diagram of the cross-sectional end face structure of the permanent magnet of the present invention.

[0027] Figure 9 This is a schematic diagram of the internal structure of the protective cover of the present invention.

[0028] In the picture: 1. Housing; 2. Feed hopper; 3. Baffle plate; 4. Motor; 5. Discharge chute; 6. Guide plate; 7. Second oil pipe; 8. Support frame; 9. Cylinder; 10. Gear disc; 11. Rotating column; 12. Baffle strip; 14. Connecting plate; 15. Gear block; 16. Protective cover; 17. Gear ring; 18. Permanent magnet; 19. Fixed cylinder; 20. Mounting plate; 21. Arc frame; 22. Baffle; 2201. Vertical part; 2202. Arc part; 23. Rotating groove; 24. Rotating seat; 25. First oil pipe; 26. First piston body; 27. First piston rod; 28. First spring; 30. Second spring; 31. Second piston body; 32. Second piston rod; 33. Fixed ball; 34. One-way valve; 35. Rotating head; 36. Fixed disc. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0030] Please see Figures 1-9 A magnetic separation and recycling device for magnetic materials in solid waste includes a box 1 and a support frame 8 fixedly connected to the bottom of the box 1. A magnetic separation component is installed inside the box 1. An opening is provided on the top outer wall of the box 1. A feed hopper 2 is fixedly connected inside the opening. A deceleration component for reducing the magnetic separation speed of solid waste is provided on one side of the feed hopper 2. The magnetic separation assembly includes a fixed disk 36 fixedly connected to the inner walls of both sides of the housing 1. A fixed cylinder 19 is fixedly connected to one outer wall of the fixed disk 36. An mounting plate 20 is fixedly connected to the outer circumference of the fixed cylinder 19. A permanent magnet 18 is fixedly connected to one outer wall of the mounting plate 20. A cylinder 9 is sleeved on the outer circumference of the permanent magnet 18. Both ends of the cylinder 9 and the fixed cylinder 19 are rotatably connected.

[0031] Furthermore, the cross-section of the permanent magnet 18 is three-quarters circular. Because the cross-section of the permanent magnet 18 is three-quarters circular, as the cylinder 9 continues to rotate, when the area of ​​the cylinder 9 with adsorbed magnetic material rotates to the area without the permanent magnet 18, that area loses the magnetic attraction force. The magnetic material originally adsorbed on the outer wall of the cylinder 9 will naturally fall off under its own gravity. The fallen magnetic material will be discharged directly from the bottom of the box 1 (the magnetic material can be collected and transported by setting a linear conveyor at the bottom of the box 1). Non-magnetic solid waste, before leaving the magnetic field, will fall onto the guide plates 6 on both sides of the box 1 and be smoothly discharged from the discharge chute 5 along the guide plates 6. A motor 4 is fixedly connected to one outer wall of the box 1, and the output of the motor 4... A rotating column 11 is fixedly connected to the end of the cylinder 9. A gear disk 10 is fixedly connected to the outer circumference of the rotating column 11. A gear ring 17 is fixedly connected to the outer circumference of the cylinder 9. The gear ring 17 meshes with the rotating column 11. Protective covers 16 are fixedly connected to the inner walls of both sides of the cylinder 9 to prevent solid waste from falling into the end gap of the cylinder 9. The outer circumference of the protective cover 16 has a notch to facilitate the transmission between the gear disk 10 and the rotating column 11. Connecting plates 14 are fixedly connected to the outer circumference of the cylinder 9 at equal intervals in a circular pattern. Tooth blocks 15 are fixedly connected to one side of the outer wall of the connecting plate 14 at equal intervals. When workers put solid waste into the hopper 2 at the top of the cylinder 1, the put-in solid waste will fall quickly until it contacts and collides with the outer circumference of the cylinder 9. When solid waste collides with the outer wall of cylinder 9, the connecting plate 14 and toothed block 15, which are fixedly connected to the outer wall of cylinder 9, can break up the colliding solid waste, preventing the solid waste from clumping too large and encasing the magnetic material, thus preventing it from being attracted by the permanent magnet 18. At the same time, the operator starts the motor 4, which drives the rotating column 11 and gear disk 10 to rotate, thereby driving the gear ring 17 to rotate as well. During the rotation of the gear ring 17, the cylinder 9, which is sleeved on the outside of the permanent magnet 18, can rotate together, thus coordinating with the rotation of cylinder 9 to agitate the broken solid waste, allowing the solid waste to fully contact the magnetic field on the outside of cylinder 9, increasing the probability of magnetic material adsorption. The cross-section of the toothed block 15 is an isosceles triangle, and the isosceles triangle... The angular toothed block 15 reduces the contact area with solid waste, enhances the dispersing effect, and prevents solid waste from sticking to the outer wall of the cylinder 9 due to collision, thus affecting the magnetic separation efficiency. A turbulence strip 12 is fixedly connected to the outer circumference of the cylinder 9. One turbulence strip 12 is located between two connecting plates 14. The cross-section of the turbulence strip 12 is wavy, and its thickness is the same as that of the connecting plates 14. Simultaneously, by setting a wavy turbulence strip 12 with the same thickness as the connecting plates 14 on the outer circumference of the cylinder 9 and between the two connecting plates 14, a secondary turbulence dispersing effect is created on the solid waste as the cylinder 9 rotates. Combined with the connecting plates 14 and the toothed block 15, this further breaks up solid waste agglomerations, allowing the solid waste to make more thorough and uniform contact with the magnetic field outside the cylinder 9, thereby improving the adsorption efficiency of magnetic materials.Furthermore, since the turbulence strip 12 and the connecting plate 14 have the same thickness, the flatness of the outer wall structure of the cylinder 9 is ensured, preventing solid waste from tangling and accumulating due to thickness differences. Simultaneously, the wave-shaped structural design increases the contact area with the solid waste, enhancing the turbulence and agitation effect without hindering the normal sliding of solid waste. Together with the connecting plate 14 and the toothed block 15, they work synergistically to keep the solid waste in a dynamically dispersed state during magnetic separation, effectively preventing magnetic materials from being trapped and unable to be adsorbed, further ensuring the effectiveness and efficiency of magnetic separation and recovery. Moreover, the entire feed hopper 2 is positioned above the collision zone, thus preventing solid waste from splashing everywhere during collisions and failing to be fully magnetically attracted by the permanent magnet 18.

[0032] Both outer walls of the box 1 are provided with discharge troughs 5. Both inner walls of the discharge troughs 5 are fixedly connected with guide plates 6 for discharging solid waste after magnetic separation. The connecting plate 14 and the toothed block 15, which rotate synchronously with the cylinder 9, will form a continuous swinging force and guiding effect, effectively limiting and guiding the falling non-magnetic materials, greatly reducing the phenomenon of non-magnetic materials falling from the gap between the end of the guide plate 6 and the cylinder 9, ensuring that the magnetic and non-magnetic materials after magnetic separation are accurately classified and collected, effectively avoiding material mixing, and ensuring the overall effect of magnetic separation and recycling.

[0033] Furthermore, baffle plates 3 are rotatably connected to both inner walls of the feed hopper 2. A second spring 30 is fixedly connected to one outer wall of the baffle plate 3. The end of the second spring 30 away from the baffle plate 3 is fixedly connected to one inner wall of the feed hopper 2. Through the action of the second spring 30, the baffle plate 3 can have a certain deceleration effect, so as to prevent solid waste from rolling down the outer wall of the cylinder 9 quickly, which would result in insufficient magnetic separation.

[0034] Furthermore, a rotating groove 23 is provided at the bottom of the feed hopper 2. A baffle 22 is rotatably connected to the inner walls of both sides of the rotating groove 23. A first spring 28 is fixedly connected to one outer wall of the baffle 22, and the other end of the first spring 28 is fixedly connected to one outer wall of the feed hopper 2. The baffle 22 includes a vertical part 2201 and an arc-shaped part 2202. The first spring 28 is fixedly connected to one outer wall of the vertical part 2201. The distance between the arc-shaped part 2202 and the circumferential outer wall of the cylinder 9 gradually increases from top to bottom. One end of the guide plate 6 located inside the box 1 is below the arc-shaped part 2202. As solid waste rolls down from both sides of the cylinder 9, the arc-shaped part 2202 in the baffle 22 allows the solid waste to slide smoothly along the arc-shaped trajectory to the guide plate 6, preventing the solid waste from falling directly and causing impact and scattering everywhere. At the same time, the gradually increasing distance between the arc-shaped part 2202 and the outer circumference of the cylinder 9 from top to bottom can reserve sufficient space for the rotation of the cylinder 9, and can also effectively guide and limit the rolling solid waste, preventing the solid waste from getting stuck in the gap between the cylinder 9 and the baffle 22, ensuring that non-magnetic solid waste enters the discharge chute 5 smoothly, further improving the smoothness of material conveying and the stability of magnetic separation.

[0035] Furthermore, an arc-shaped frame 21 is fixedly connected to the outer wall of the mounting plate 20 on the side away from the permanent magnet 18. The cross-section of the arc-shaped frame 21 is Ω-shaped, and the outer circumferential wall of the arc-shaped frame 21 is in contact with the inner circumferential wall of the cylinder 9. The arc-shaped frame 21 can provide support and guidance for the rotation of the cylinder 9 and reduce frictional loss.

[0036] Furthermore, the deceleration assembly includes a second oil pipe 7 fixedly connected to the inner wall of the top of the housing 1. One end of the second oil pipe 7 is fixedly connected to a first oil pipe 25. A second piston body 31 is disposed inside the second oil pipe 7. A second piston rod 32 is fixedly connected to the inner circumference of the second piston body 31. A fixed ball 33 is fixedly connected to one end of the second piston rod 32 extending from the inside of the second oil pipe 7. The fixed ball 33 is located on one side of the baffle plate 3. A rotating seat 24 is fixedly connected to one side of the outer wall of the vertical part 2201. A rotating head 35 is rotatably connected to one side of the rotating seat 24. A first piston rod 27 is fixedly connected to the outer circumference of the moving head 35. A first piston body 26 is fixedly connected to one end of the first piston rod 27. The first piston body 26 is located inside the first oil pipe 25. The top end of the first oil pipe 25 is connected to one side of the outer wall of the second oil pipe 7. One-way valves 34 are provided at one end of both the second oil pipe 7 and the first oil pipe 25. When large-sized solid waste occurs during the feeding process, the large-sized solid waste will first exert a large compressive force on the baffle plate 3. When the compressive force on the baffle plate 3 is too large and squeezes the fixed ball 33, it will... The fixed ball 33 drives the second piston rod 32 and the second piston body 31 to move horizontally. At this time, the second piston body 31 will squeeze the damping oil inside the second oil pipe 7, forcing it from the other end of the second oil pipe 7 into the interior of the first oil pipe 25. The damping oil will then flow downwards until it reaches the end of the first piston body 26. At this point, when larger solid waste rolls onto one side of the baffle 22, the impact force of the larger solid waste is greater and it can easily push the baffle 22 open. However, the hydraulic transmission effect of the damping oil will buffer the opening action of the baffle 22, preventing... To prevent large-sized solid waste from being discharged too quickly due to excessive impact, which could affect the magnetic quality, the hydraulic linkage deceleration effect simultaneously slows down the falling speed of large-sized solid waste, preventing it from impacting the cylinder 9 at high speed and causing equipment wear. After the large-sized solid waste passes through, the second spring 30 and the first spring 28 will drive the baffle plate 3 and the baffle 22 to quickly reset, continuously slowing down and preventing splashing of subsequent solid waste, allowing solid waste of different sizes to enter the magnetic separation zone smoothly, ensuring the continuity of the overall magnetic separation operation and the stability of the equipment.

[0037] In summary, with the help of the above-mentioned technical solution of the present invention, during use, the operator puts solid waste into the feed hopper 2 at the top of the box 1. The put-in solid waste will fall quickly until it comes into contact with and collides with the outer wall of the cylinder 9. When the solid waste collides with the outer wall of the cylinder 9, the connecting plate 14 and the toothed block 15 fixedly connected to the outer wall of the cylinder 9 can break up the colliding solid waste, avoiding the situation where the solid waste clumps too large and wraps the magnetic material, making it unable to be attracted by the permanent magnet 18. At the same time, the operator starts... Motor 4 drives the rotating column 11 and gear disk 10 to rotate, which in turn drives the gear ring 17 to rotate. During the rotation of the gear ring 17, the cylinder 9, which is sleeved outside the permanent magnet 18, rotates as well. This rotation of the cylinder 9 causes the crushed solid waste to tumble, ensuring sufficient contact between the solid waste and the magnetic field outside the cylinder 9, increasing the probability of magnetic adsorption. Furthermore, the isosceles triangular toothed blocks 15 reduce the contact area with the solid waste, enhancing the dispersing effect and preventing the solid waste from sticking to the outer wall of the cylinder 9 due to collision. To improve magnetic separation efficiency, a corrugated baffle strip 12 with the same thickness as the connecting plates 14 is installed on the outer circumference of the cylinder 9 and between the two connecting plates 14. This baffle strip, with the rotation of the cylinder 9, creates a secondary turbulence and dispersion effect on the solid waste. In conjunction with the connecting plates 14 and toothed blocks 15, it further breaks up solid waste agglomerations, allowing the solid waste to make more thorough and uniform contact with the magnetic field on the outside of the cylinder 9, thus improving the adsorption efficiency of magnetic materials. Furthermore, because the baffle strip 12 has the same thickness as the connecting plates 14, it ensures the flatness of the outer wall structure of the cylinder 9, avoiding solid waste from being damaged due to thickness differences. The interconnected and stacked structure, along with the wave-shaped design, increases the contact area with solid waste, enhances the turbulence and tumbling effect, and does not hinder the normal sliding of solid waste. It works synergistically with the connecting plate 14 and toothed block 15 to keep the solid waste in a dynamic and dispersed state during the magnetic separation process, effectively preventing the magnetic material from being wrapped up and unable to be adsorbed, further ensuring the effect and efficiency of magnetic separation and recycling. In addition, the entire feed hopper 2 is covered above the collision zone, which can prevent solid waste from splashing everywhere during the collision and failing to be fully magnetically attracted by the permanent magnet 18. Because the cross-section of the permanent magnet 18 is three-quarters circular, as the cylinder 9 continues to rotate, when the area of ​​cylinder 9 with magnetic material adsorbed rotates to the area without permanent magnet 18, that area loses the magnetic attraction force. The magnetic material originally adsorbed on the outer wall of cylinder 9 will naturally fall off under its own gravity. The fallen magnetic material will be discharged directly from the bottom of the box 1 (the magnetic material can be collected and transported by setting a linear conveyor at the bottom of the box 1), while non-magnetic solid waste will fall into the box before leaving the magnetic field. On the guide plates 6 on both sides of the body 1, the non-magnetic solid waste is smoothly discharged from the discharge chute 5 along the guide plates 6. During the process of non-magnetic solid waste falling into the guide plates, the connecting plate 14 and toothed block 15 rotating synchronously with the cylinder 9 will form a continuous swinging force and guiding effect, effectively limiting and guiding the falling non-magnetic materials, greatly reducing the phenomenon of non-magnetic materials falling from the gap between the end of the guide plate 6 and the cylinder 9, ensuring that the magnetic and non-magnetic materials after magnetic separation are accurately classified and collected, effectively avoiding material mixing, and ensuring the overall effect of magnetic separation and recycling. When large-sized solid waste is encountered during the disposal process, it first exerts a greater compressive force on the baffle plate 3. When the compressive force on the baffle plate 3 is too great and it squeezes the fixed ball 33, the fixed ball 33 will drive the second piston rod 32 and the second piston body 31 to move horizontally. At this time, the second piston body 31 will squeeze the damping oil inside the second oil pipe 7, forcing it from the other end of the second oil pipe 7 into the interior of the first oil pipe 25. The damping oil will then flow downwards until it reaches the end of the first piston body 26. At this point, when the large-sized solid waste rolls to one side of the baffle 22, the greater impact force of the large-sized solid waste will easily push the baffle... The cover 22 opens, but the hydraulic transmission of the damping oil will buffer the opening action of the cover 22, preventing the cover 22 from opening suddenly due to the excessive impact force of large solid waste, which would cause the solid waste discharge rate to be too fast and affect the magnetic quality. At the same time, the deceleration effect of the hydraulic linkage will slow down the falling speed of the large solid waste, preventing it from impacting the cylinder 9 at high speed and causing equipment wear. After the large solid waste passes through, the second spring 30 and the first spring 28 will drive the baffle plate 3 and the cover 22 to quickly reset, continuously decelerating and preventing splashing of subsequent solid waste, so that solid waste of different sizes can enter the magnetic separation area smoothly, ensuring the continuity of the overall magnetic separation operation and the stability of the equipment operation. As solid waste rolls down from both sides of the cylinder 9, the arc-shaped part 2202 in the baffle 22 allows the solid waste to slide smoothly along the arc trajectory to the guide plate 6, preventing the solid waste from falling directly and causing impact and scattering everywhere. At the same time, the gradually increasing distance between the arc-shaped part 2202 and the outer circumference of the cylinder 9 from top to bottom provides sufficient space for the rotation of the cylinder 9 and can also effectively guide and limit the rolling solid waste, preventing the solid waste from getting stuck in the gap between the cylinder 9 and the baffle 22, ensuring that non-magnetic solid waste enters the discharge chute 5 smoothly, further improving the smoothness of material conveying and the stability of magnetic separation. Subsequently, the non-magnetic area of ​​the cylinder 9 will continue to rotate with the cylinder 9 to the magnetic field coverage area of ​​the permanent magnet 18, and the magnetic material adsorption operation will be carried out again. This cycle is repeated to realize the continuous and automated magnetic separation and recycling of magnetic materials in solid waste.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A magnetic separation and recovery device for magnetic materials in solid waste, comprising a housing (1) and a support frame (8) fixedly connected to the bottom of the housing (1), characterized in that, The box (1) is equipped with a magnetic separation component inside. The top outer wall of the box (1) has an opening, and a feed hopper (2) is fixedly connected inside the opening. A deceleration component to reduce the magnetic separation speed of solid waste is provided on one side of the feed hopper (2). The magnetic separation assembly includes a fixed disk (36) fixedly connected to the inner walls of both sides of the housing (1). A fixed cylinder (19) is fixedly connected to one outer wall of the fixed disk (36). An mounting plate (20) is fixedly connected to the outer circumference of the fixed cylinder (19). A permanent magnet (18) is fixedly connected to one outer wall of the mounting plate (20). A cylinder (9) is sleeved on the outer circumference of the permanent magnet (18). Both ends of the cylinder (9) and the fixed cylinder (19) are rotatably connected. The outer walls of both sides of the box (1) are provided with discharge troughs (5), and the inner walls of both sides of the discharge troughs (5) are fixedly connected with guide plates (6) for discharging solid waste after magnetic separation. The outer circumference of the cylinder (9) is fixedly connected with connecting plates (14) that are evenly spaced and circularly distributed. One side of the outer wall of each connecting plate (14) is fixedly connected with equally spaced toothed blocks (15). The cross-section of each toothed block (15) is an isosceles triangle. A baffle strip (12) is fixedly connected to the outer circumference of the cylinder (9). One baffle strip (12) is located between two connecting plates (14). The cross-section of the baffle strip (12) is wavy. The thickness of the baffle strip (12) is the same as the thickness of the connecting plate (14). The inner sides of the feed hopper (2) are... The feed hopper (2) is rotatably connected to a baffle plate (3). A rotating groove (23) is provided at the bottom of the feed hopper (2). A baffle (22) is rotatably connected to the inner walls of both sides of the rotating groove (23). The baffle (22) includes a vertical part (2201) and an arc-shaped part (2202). A first spring (28) is fixedly connected to one outer wall of the baffle (22). The first spring (28) is fixedly connected to one outer wall of the vertical part (2201), and the other end of the first spring (28) is fixedly connected to one outer wall of the feed hopper (2). The deceleration... The component includes a second oil pipe (7) fixedly connected to the inner wall of the top of the housing (1). One end of the second oil pipe (7) is fixedly connected to a first oil pipe (25). A second piston body (31) is disposed inside the second oil pipe (7). A second piston rod (32) is fixedly connected to the inner circumference of the second piston body (31). A fixed ball (33) is fixedly connected to one end of the second piston rod (32) extending from the inside of the second oil pipe (7). The fixed ball (33) is located on one side of the baffle plate (3) and on the outer side of the vertical part (2201). A rotating seat (24) is fixedly connected to the wall. A rotating head (35) is rotatably connected to one side of the rotating seat (24). A first piston rod (27) is fixedly connected to the outer circumference of the rotating head (35). A first piston body (26) is fixedly connected to one end of the first piston rod (27). The first piston body (26) is located inside the first oil pipe (25). The top end of the first oil pipe (25) is connected to one side of the outer wall of the second oil pipe (7). A one-way valve (34) is provided at one end of both the second oil pipe (7) and the first oil pipe (25).

2. The magnetic separation and recovery device for magnetic materials in solid waste according to claim 1, characterized in that, The permanent magnet (18) has a three-quarter circular cross-section. A motor (4) is fixedly connected to one side of the outer wall of the box (1). A rotating column (11) is fixedly connected to the output end of the motor (4). A gear disk (10) is fixedly connected to the outer circumference of the rotating column (11). A gear ring (17) is fixedly connected to the outer circumference of the cylinder (9). The gear ring (17) meshes with the rotating column (11). A protective cover (16) is fixedly connected to both sides of the inner wall of the box (1) to prevent solid waste from falling into the end gap of the cylinder (9). The outer circumference of the protective cover (16) has a notch to facilitate the transmission between the gear disk (10) and the rotating column (11).

3. The magnetic separation and recovery device for magnetic materials in solid waste according to claim 2, characterized in that, A second spring (30) is fixedly connected to one side of the outer wall of the baffle plate (3), and one end of the second spring (30) away from the baffle plate (3) is fixedly connected to one side of the inner wall of the feed hopper (2).

4. The magnetic separation and recovery device for magnetic materials in solid waste according to claim 3, characterized in that, The distance between the arc-shaped part (2202) and the outer circumferential wall of the cylinder (9) gradually increases from top to bottom, and the end of the guide plate (6) located inside the box (1) is located below the arc-shaped part (2202).

5. A magnetic separation and recovery device for magnetic materials in solid waste according to claim 4, characterized in that, An arc-shaped frame (21) is fixedly connected to the outer wall of the mounting plate (20) away from the permanent magnet (18). The cross-section of the arc-shaped frame (21) is Ω-shaped, and the outer circumferential wall of the arc-shaped frame (21) is in contact with the inner circumferential wall of the cylinder (9).

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