Magnetic pulverizing hopper device

Abstract

The present application relates to a kind of magnetic powder hopper devices, belong to magnetic material processing technical field, including shell and the rotating power part being set on shell, crushing mechanism includes conical hopper and crushing head, the output shaft of rotating power part is connected with crushing head, support plate is horizontally arranged in the just below of conical hopper and with the central line coaxial, multiple magnetic columns are vertically arranged at equal intervals on support plate, drive mechanism is set on shell, the article with magnetic material is crushed in the present application, the particle of magnetic material and other materials after crushing falls to support plate, the particle of magnetic material is collected using magnetic column adsorption, then using drive mechanism to drive support plate to rotate, so that magnetic column agitates the particle group that the magnetic material and other material particles are electrostatically gathered, magnetic column and particle group collide to make it broken and dispersed, ensure that magnetic column can stably separate the particle of magnetic material and other materials, improve the separation effect when magnetic material is recycled.

Description

Technical Field

[0001] This invention belongs to the field of magnetic material processing technology, and specifically relates to a magnetic crushing hopper device. Background Technology

[0002] Magnetic materials have wide and important applications in modern industrial products. Their properties make them indispensable core components in many fields, especially in electronics, energy, communications, and automation, where they play a crucial role. With continuous technological and economic development and the accelerating pace of product upgrades, the demand for magnetic materials is increasing, particularly rare-earth magnetic materials such as neodymium iron boron and samarium cobalt. These materials are irreplaceable in modern industrial products, making them valuable resources. However, the mining and refining processes of magnetic materials are not only costly but also have significant negative environmental impacts. Therefore, the recycling of magnetic materials is becoming increasingly important.

[0003] When recycling magnetic materials from industrial products, mechanical separation is generally used to separate the magnetic materials from other components before extracting rare earth elements. Common extraction methods include chemical treatment, metallurgical methods, electrolysis, pyrolysis, and reduction. However, mechanical separation of magnetic materials can easily result in incomplete separation or the obtained magnetic materials being contaminated with other materials, leading to poor separation efficiency during magnetic material recycling.

[0004] Currently, in order to improve the shortcomings of the above-mentioned magnetic material recycling and enhance the separation effect of magnetic materials, existing technologies often use magnetic crushing hoppers to process industrial products. The magnetic materials of the products are directly crushed into particles along with other materials, and then a magnetic field is used to separate the magnetic materials from the particles of other materials. This can avoid incomplete separation of magnetic materials and the separation of magnetic materials along with other materials.

[0005] However, in the existing magnetic crushing hopper, the magnetic material rubs against other materials during the crushing process. Since plastics account for a high proportion of industrial products, electron transfer between magnetic material particles and other material particles is likely to occur, resulting in the accumulation of static electricity. This causes the magnetic material and other material particles to be electrostatically adsorbed and clump together, requiring subsequent separation of the electrostatically adsorbed magnetic material and other material particles. As a result, the separation effect during the recovery of magnetic materials is limited. Summary of the Invention

[0006] In view of this, the present invention provides a magnetic crushing hopper device to overcome the shortcomings of the prior art. The present invention can ensure the stable separation of magnetic materials from other materials and improve the separation effect during the recovery of magnetic materials.

[0007] The technical solution of the present invention is: a magnetic crushing hopper device, comprising a housing and a rotating power unit disposed on the housing, the crushing mechanism comprising a conical hopper and a crushing head, the conical hopper being vertically fixed inside the upper side of the housing, the bottom of the conical hopper being through-hole disposed, the crushing head being coaxially disposed in the conical hopper, the output shaft of the rotating power unit being connected to the crushing head to drive the crushing head to rotate and crush items containing magnetic materials, a support plate being horizontally disposed directly below the conical hopper and coaxial with its center line, a plurality of magnetic columns being vertically disposed at equal intervals on the support plate to adsorb the crushed magnetic material particles, a driving mechanism being disposed on the housing, the output end of the driving mechanism being connected to the support plate to drive the support plate to rotate around its center line, thereby driving the magnetic columns to agitate and break apart the particle clusters of magnetic materials and other material particles that are electrostatically aggregated; Multiple electrodes are evenly spaced around the outside of the conical hopper and located on the side of the conical hopper close to the support plate. The electrodes are fixedly connected to the conical hopper and are electrically connected to a power source outside the housing so that the electrodes discharge to ionize the air in the bottom area of ​​the conical hopper and the crushing head, and neutralize the static electricity on magnetic materials and other material particles. Multiple air inlet pipes are equally spaced around the upper side of the housing. The side of the air inlet pipes near the crushing head is inclined downward. The air inlet pipes are located above the electrodes one by one. Multiple exhaust pipes are equally spaced around the bottom of the housing. The exhaust pipes are located below the support plate. The housing is equipped with a negative pressure suction mechanism to drive the air in the housing to flow from top to bottom. The negative pressure suction mechanism includes: a rotating shaft and a fan wheel mounted on the rotating shaft. The rotating shaft is vertically positioned below the support plate and is coaxial with the center line of the crushing head. One end of the rotating shaft is rotatably connected to the housing, and the other end is fixedly connected to the support plate. The support plate has multiple through holes at equal intervals along the vertical direction. The lower end of the magnetic column passes through the through holes and is fixedly connected to the fan blades of the impeller. The magnetic column is slidably connected to the support plate along the vertical direction. A connecting pipe is coaxially sleeved on the lower side of the rotating shaft and connected to it by a key. The rotating shaft is slidably connected to the connecting pipe along the vertical direction. One end of the rotating shaft is rotatably connected to the housing through the lower end of the connecting pipe. The impeller is fixedly mounted on the connecting pipe on the rotating shaft. A telescopic power element is provided on the crushing head. The output end of the telescopic power element is fixedly connected to the rotating shaft. The inner diameter of the through hole is larger than the outer diameter of the magnetic column. An annular part is fitted on the magnetic column and is slidably sealed to it. The outer diameter of the annular part is larger than the inner diameter of the through hole. A limiting part is fixed on the magnetic column and is located above the through hole. The limiting part abuts against the lower side of the annular part.

[0008] Preferably, the electrode is perpendicular to the centerline of the intake pipe.

[0009] Preferably, the upper end of the rotating shaft passes through the support plate and is connected to the crushing head.

[0010] Preferably, a sleeve is coaxially provided on the upper side of the support plate, the sleeve is rotatably connected to the support plate, the sleeve is slidably connected to the shell in the vertical direction, the outer side of the sleeve abuts against the inner wall of the shell, a through groove is provided at the bottom of the sleeve in the radial direction, and a magnetic material outlet is provided horizontally on one side of the shell, the magnetic material outlet is located directly above the through groove.

[0011] Preferably, the outer diameter of the annular part gradually decreases from top to bottom, the lower end of the annular part extends into the through hole, and an annular channel is formed between the annular part and the inner wall of the through hole.

[0012] Compared with the prior art, the magnetic crushing hopper device provided by the present invention uses a rotating power unit on the shell in conjunction with the conical hopper and crushing head of the crushing mechanism to crush items containing magnetic materials. The crushed magnetic materials and other material particles fall freely onto the support plate, where magnetic columns adsorb and collect the magnetic material particles, achieving separation of magnetic materials from other material particles. The drive mechanism then drives the support plate to rotate, causing the magnetic columns to agitate the electrostatically aggregated particle clusters of falling magnetic materials and other material particles. The collision between the magnetic columns and the particle clusters breaks them apart, ensuring that the magnetic columns can stably separate magnetic materials from other material particles, thus improving the separation effect during magnetic material recovery. Attached Figure Description

[0013] Figure 1 This is a top view of the magnetic crushing hopper device of the present invention; Figure 2 This is a front view of the magnetic crushing hopper device of the present invention; Figure 3 This is the present invention. Figure 1 AA section view in the middle; Figure 4 This is the present invention. Figure 1 BB section view in the middle; Figure 5 This is the present invention. Figure 2 CC section view in the middle; Figure 6 This is the present invention. Figure 2 DD section view in the middle; Figure 7 This is the present invention. Figure 2 EE section view; Figure 8 This is the present invention. Figure 4 Enlarged diagram of point G in the diagram; Figure 9 This is the present invention. Figure 4 Enlarged diagram at point H in the diagram Figure 10This is a front view of the pulverizing head of the present invention; Figure 11 This is a front view of the sleeve of the present invention.

[0014] Explanation of reference numerals in the attached drawings: 1. Shell; 2. Rotary power unit; 3. Conical hopper; 4. Crushing head; 5. Support plate; 6. Magnetic column; 7. Electrode; 8. Circular guide plate; 9. Air inlet pipe; 10. Exhaust pipe; 11. Rotating shaft; 12. Impeller; 13. Connecting pipe; 14. Telescopic power element; 15. Sleeve; 16. Through groove; 17. First discharge pipe; 18. Slide groove; 19. Sliding block; 20. Annular part; 21. Limiting part; 22. Second discharge pipe; 23. Drum screen; 24. Cleaning brush; 25. Support; 41. Countersunk hole; 100. Feed hopper; 101. Limiting groove; 102. Limiting block; 201. First motor; 202. Belt drive mechanism. Detailed Implementation

[0015] This invention provides a magnetic crushing hopper device, which is described below in conjunction with... Figures 1 to 11 The present invention is illustrated by the structural diagram shown below.

[0016] 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," "axial," "radial," and "circumferential" 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 the technical solution of 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.

[0017] Reference Figure 1 , Figure 1 This is a top view of the magnetic crushing hopper device of this embodiment. The magnetic crushing hopper device includes a housing 1 and a rotating power unit 2 disposed on the housing 1. The crushing mechanism includes a conical hopper 3 and a crushing head 4. The conical hopper 3 is vertically fixed inside the upper side of the housing 1, with its bottom penetrating through. The crushing head 4 is coaxially disposed in the conical hopper 3. The output shaft of the rotating power unit 2 is connected to the crushing head 4 to drive the crushing head 4 to rotate and crush items containing magnetic materials. A support plate 5 is horizontally disposed directly below the conical hopper 3 and coaxial with its center line. Multiple magnetic columns 6 are vertically disposed at equal intervals on the support plate 5 to adsorb the crushed magnetic material particles. A driving mechanism is disposed on the housing 1, and the output end of the driving mechanism is connected to the support plate 5 to drive the support plate 5 to rotate around its center line, thereby driving the magnetic columns 6 to agitate and disperse the electrostatically aggregated particle clusters of magnetic materials and other materials.

[0018] In this embodiment, when recycling items containing magnetic materials, the rotating power unit 2 is activated to drive the crushing head 4 to rotate. The items containing magnetic materials are then fed from the feed hopper 100 located at the top of the housing 1 into the conical hopper 3 of the crushing mechanism. During the rotation of the crushing head 4, the items containing magnetic materials are continuously squeezed and ground. As the items are crushed, they move towards the bottom of the conical hopper 3, ultimately crushing the magnetic materials and other materials in the items into particles. These particles are then output from the bottom of the conical hopper 3 and fall downwards through free fall. The magnetic column 6 adsorbs the magnetic material particles, achieving separation of the magnetic materials from other material particles. During the crushing process, the materials (magnetic materials and other materials) interact with each other, as do the materials with the conical hopper 3 and the crushing head 4. Friction causes static electricity to accumulate, leading to the electrostatic adsorption of pulverized magnetic materials and other material particles, resulting in clumping. This can easily result in either the entire clumping being adsorbed by the magnetic column 6 or a clumping containing magnetic material particles remaining unadsorbed. This necessitates repeated separation of the electrostatically adsorbed magnetic material from the other material particles, otherwise the recovery rate of the magnetic material will be reduced. In this embodiment, a driving mechanism rotates the support plate 5 around its centerline, causing the magnetic column 6 on the support plate 5 to agitate and collide with the freely falling clumping particles. This breaks down the clumping, separating the magnetic material particles from the other material particles, ensuring the effective separation of the magnetic column 6 and avoiding the aforementioned incomplete separation and the need for repeated separation. This further improves the separation effect during magnetic material recovery.

[0019] The rotating power unit 2 in the above embodiment refers to... Figure 5 , Figure 5 This is a CC cross-sectional view of the magnetic crushing hopper device in this embodiment. The rotating power unit 2 includes: a first motor 201, a belt drive mechanism 202, a connecting shaft, and a protective cover. The first motor 201 is vertically fixed to the top of the housing 1. The connecting shaft is vertically arranged on the top of the housing 1 and coaxial with the crushing head 4. The connecting shaft is rotatably connected to the housing 1 through a mounting bracket and bearings. One end of the connecting shaft extends into the housing 1 and is fixedly connected to the crushing head 4. The pulleys of the belt drive mechanism 202 are respectively mounted on the other end of the connecting shaft and the output shaft of the first motor 201, and the two pulleys are connected by a belt to realize that the first motor 201 drives the crushing head 4 to rotate.

[0020] Reference Figure 3 , Figure 1This is a cross-sectional view (AA) of the magnetic crushing hopper device in this embodiment. As a further optimization, in this embodiment, multiple electrodes 7 are evenly spaced around the outer side of the conical hopper 3 and are located on the side of the conical hopper 3 near the support plate 5. The electrodes 7 are fixedly connected to the conical hopper 3 and are electrically connected to the power supply outside the housing 1, so that the electrodes 7 discharge to ionize the air in the bottom area of ​​the conical hopper 3 and the crushing head 4, and neutralize the static electricity on the magnetic materials and other material particles.

[0021] In this embodiment, multiple electrodes 7 are arranged on the outside of the conical hopper 3. The electrodes 7 are electrically connected to an external power source. When recycling items containing magnetic materials, the electrodes 7 ionize the air in the bottom area of ​​the conical hopper 3 and the crushing head 4. When the crushed magnetic materials and other material particles fall out from the bottom of the conical hopper 3, the static electricity on the particles is neutralized, reducing the possibility of magnetic materials and other material particles agglomerating due to electrostatic adsorption, thereby improving the separation effect of the magnetic column 6 on magnetic materials and other material particles.

[0022] Specifically, in the above embodiments, the material of electrode 7 is non-magnetic, and the external power supply is a DC power supply, which is safer for DC steady-state ionization.

[0023] As a further optimization, in this embodiment, multiple air inlet pipes 9 are equally spaced around the upper side of the housing 1. The side of the air inlet pipes 9 closest to the crushing head 4 is inclined downward. The air inlet pipes 9 are located above the electrodes 7 in a one-to-one correspondence. Multiple exhaust pipes 10 are equally spaced around the bottom of the housing 1. The exhaust pipes 10 are located below the support plate 5. The housing 1 is provided with a negative pressure suction mechanism to drive the air in the housing to flow from top to bottom.

[0024] In this embodiment, multiple air inlet pipes 9 and exhaust pipes 10 are provided on the upper side and bottom of the housing 1. The negative pressure suction mechanism drives the air to flow from top to bottom, so that the air ionized by the electrode 7 moves downward synchronously with the crushed particles, thereby further improving the neutralization effect on the electrostatic particles.

[0025] In the above embodiments, to prevent dust from spreading from the exhaust pipe 10 into the air during the crushing process and causing pollution to the external environment, the intake pipe 9 and the exhaust pipe 10 are connected by a pipe at one end located outside the housing 1, so that the air flowing out of the exhaust pipe 10 can be repeatedly circulated into the intake pipe 9. At the same time, a filter mechanism and other material collection mechanisms can be set on the pipe between the intake pipe 9 and the exhaust pipe 10 to filter and collect other material particles carried in the air. In addition, an air dust filter device is also set on the pipe to separate the dust in the air and avoid dangerous situations such as sparks caused by excessive dust concentration in the air when the electrode 7 is discharged.

[0026] As a further optimization, in this embodiment, the center line of electrode 7 and the center line of intake pipe 9 are perpendicular to each other.

[0027] In this embodiment, the center lines of the electrode 7 and the air intake pipe 9 are arranged perpendicularly to each other, which improves the ionization efficiency of the air entering the housing through the air intake pipe 9 when passing through the electrode 7, improves the utilization rate of electrical energy, and enhances the neutralization effect of the downward flowing air on electrostatic particles.

[0028] This embodiment provides a specific structure of a negative pressure suction mechanism. The specific negative pressure suction mechanism includes a rotating shaft 11 and a fan wheel 12 disposed on the rotating shaft 11. The rotating shaft 11 is vertically disposed below the support plate 5 and is coaxial with the center line of the crushing head 4. One end of the rotating shaft 11 is rotatably connected to the housing 1, and the other end is fixedly connected to the support plate 5.

[0029] In this embodiment, the rotating shaft 11 of the negative pressure suction mechanism is fixedly connected to the support plate 5, which enables the driving mechanism to drive the rotating shaft 11 and the impeller 12 to rotate simultaneously when the support plate 5 is rotated, thereby driving the air in the housing 1 to flow from top to bottom. This allows the rotation of the support plate 5 to drive the magnetic column 6 to stir the particle cluster, causing it to break and disperse, and to adsorb magnetic material particles, while simultaneously driving the air flow.

[0030] Specifically, the drive mechanism includes a second motor, which is fixed to the bottom of the housing 1. One end of the rotating shaft 11 extends from the bottom of the housing 1. The output shaft of the second motor is connected to the rotating shaft 11 so as to drive the rotating shaft 11 to rotate.

[0031] As a further optimization, in this embodiment, the upper end of the rotating shaft 11 passes through the support plate 5 and is connected to the crushing head 4.

[0032] In this embodiment, the rotating shaft 11 passes through the support plate 5 and is connected to the crushing head 4. This enables the rotating power unit 2 to drive the crushing head 4 to rotate, and the crushing head 4 to simultaneously drive the support plate 5 and the impeller 12 to rotate using the rotating shaft 11. In other words, the crushing head 4 replaces the second motor of the drive mechanism, which not only achieves the neutralization of electrostatic particles by driving the flow of ionized air, but also simultaneously achieves the agitation and crushing of particle clusters by driving the magnetic column 6 to rotate the support plate 5, further improving the separation effect during the recovery of magnetic materials.

[0033] Reference Figure 7 , Figure 7This is an EE cross-sectional view of the magnetic crushing hopper device in this embodiment. Based on the above embodiment, this embodiment has multiple through holes evenly spaced vertically on the support plate 5. The lower ends of the magnetic columns 6 pass through the through holes and are fixedly connected to the fan blades of the impeller 12. The magnetic columns 6 are slidably connected to the support plate 5 vertically. A connecting pipe 13 is coaxially sleeved on the lower side of the rotating shaft 11 and connected to it by a key. The rotating shaft 11 is slidably connected to the connecting pipe 13 vertically. One end of the rotating shaft 11 is rotatably connected to the housing 1 through the lower end of the connecting pipe 13. The impeller 12 is fixedly mounted on the connecting pipe 13 on the rotating shaft 11. A telescopic power element 14 is provided on the crushing head 4. The output end of the telescopic power element 14 is fixedly connected to the rotating shaft 11.

[0034] In this embodiment, the through holes on the support plate 5 allow the magnetic column 6 to be fixedly connected to the fan blades of the impeller 12. After the magnetic column 6 has been working for a period of time, the telescopic power element 14 drives the rotating shaft 11 to move upward, which in turn drives the support plate 5 to move upward to scrape off the magnetic material adsorbed on the magnetic column 6. This facilitates the collection of magnetic material particles that have been separated over a period of time, and prevents the adsorption force on the falling magnetic material particles from weakening when the particles adsorbed on the magnetic column 6 exceed a certain thickness, thereby further improving the separation effect during magnetic material recovery.

[0035] In the above embodiment, the telescopic power element 14 is installed on the crushing head 4. A countersunk hole 41 is provided at the bottom of the crushing head 4. The countersunk hole 41 is coaxial with the center line of the crushing head 4. The telescopic power element 14 is an electric cylinder. The electric cylinder is vertically fixed in the countersunk hole 41. The upper end of the rotating shaft 11 is fixedly connected to the end of the piston rod of the electric cylinder.

[0036] Reference Figure 8 , Figure 8 This is an enlarged schematic diagram of point G of the magnetic crushing hopper device in this embodiment. A limiting groove 101 is formed on the upper side of the rotating shaft 11 along its length direction. A limiting block 102 is fixed at the opening of the counterbore 41 of the crushing head 4. The limiting block 102 is slidably connected to the limiting groove 101. The crushing head 4 drives the rotating shaft 11 to rotate by the cooperation of the limiting block 102 and the limiting groove 101.

[0037] In addition, in the above embodiments, the rotating shaft 11 can drive the connecting pipe 13 and the impeller 12 to rotate through a key connection, or the cross section of the rotating shaft 11 can be a regular hexagon and be connected with the connecting pipe 13 to drive the connecting pipe 13 and the impeller 12 to rotate.

[0038] Reference Figure 4 , Figure 4This is a BB cross-sectional view of the magnetic crushing hopper device in this embodiment. As a further optimization, in this embodiment, a sleeve 15 is coaxially provided on the upper side of the support plate 5. The sleeve 15 is rotatably connected to the support plate 5. The sleeve 15 is slidably connected to the housing 1 in the vertical direction. The outer side of the sleeve 15 abuts against the inner wall of the housing 1. A through groove 16 is provided at the bottom of the sleeve 15 in the radial direction. A magnetic material outlet is horizontally provided on one side of the housing 1. The magnetic material outlet is located directly above the through groove 16.

[0039] In this embodiment, the sleeve 15 and the through slot 16 thereon are used so that when the telescopic power element 14 drives the support plate 5 to move upward to scrape the magnetic material adsorbed on the magnetic column 6, the support plate 5 simultaneously drives the sleeve 15 to move upward, so that the through slot 16 can be connected to the magnetic material outlet on the shell 1. The magnetic particles scraped off the magnetic column 6 fall onto the support plate 5, and then the crushing head 4 drives the support plate 5 to rotate, so that the magnetic material particles on the support plate 5 are output from the shell 1 through the through slot 16 and the magnetic material outlet, which facilitates the collection of the separated magnetic material particles.

[0040] Specifically, refer to Figure 2 , Figure 2 This is a front view of the magnetic crushing hopper device in this embodiment. In the above embodiment, the shell 1 is provided with a first discharge pipe 17 at the magnetic material outlet. The first discharge pipe 17 is flush with the inner wall of the shell 1, and the magnetic material particles slide out from the through groove 16 through the first discharge pipe 17.

[0041] Specifically, refer to Figure 6 , Figure 6 This is a DD cross-sectional view of the magnetic crushing hopper device in this embodiment. In the above embodiment, a sliding groove 18 is vertically opened on the inner wall of the shell 1, and a slider 19 is fixed on the outer side of the sleeve 15. The slider 19 is embedded in the sliding groove 18 and slidably connected with it. The slider 19 is used to keep the position of the sleeve 15 stationary when the support plate 5 rotates, so that the through groove 16 can be stably connected with the magnetic material outlet on the shell 1. When the support plate 5 moves upward to the top of the magnetic column 6, the through groove 16 is aligned and connected with the magnetic material outlet.

[0042] Reference Figure 9 , Figure 9 This is an enlarged schematic diagram of point H of the magnetic crushing hopper device in this embodiment. As a further optimization, in this embodiment, the inner diameter of the through hole is larger than the outer diameter of the magnetic column 6. An annular part 20 is sleeved on the magnetic column 6 and slidably sealed to it. The outer diameter of the annular part 20 is larger than the inner diameter of the through hole. A limiting part 21 is fixed on the magnetic column 6 and located above the through hole. The limiting part 21 abuts against the lower side of the annular part 20.

[0043] In this embodiment, the inner diameter of the through hole is set to be larger than the outer diameter of the magnetic column 6, so that the impeller 12 drives the air on the upper side of the support plate 5 to flow from the through hole to its lower side, and drives the ionized air to flow vertically, thereby coinciding with the trajectory of the freely falling particles, further improving the neutralization effect on the electrostatic particles, and also guiding the particles to fall vertically (the particles will move horizontally when they collide with the magnetic column), improving the adsorption effect of the magnetic column 6 on the magnetic particles, and further improving the separation effect of the magnetic column 6 on the magnetic material particles.

[0044] In the above embodiment, other material particles not attracted by the magnetic column fall through the through hole to the lower side of the support plate 5. A drum screen 23 is vertically fixed directly below the support plate 5. The drum screen 23 is coaxial with the center line of the rotating shaft 11. The impeller 12 is located in the drum screen 23. The opening of the exhaust pipe 10 is located outside the drum screen 23. Other material particles falling through the through hole to the lower side of the support plate 5 are separated from the air by the drum screen 23. A bracket 25 is installed directly below the shell 1 for support. A second discharge pipe 22 is vertically arranged at the bottom of the shell 1. Other material particles gathered on the lower side of the support plate 5 are discharged from the inside of the shell 1 by the second discharge pipe 22.

[0045] In addition, in the above embodiment, a cleaning brush 24 can be installed on the side of the connecting pipe 13 near the bottom of the housing 1. The cleaning brush 24 is used to push other material particles that have gathered together, so that they can be easily discharged from the second discharge pipe 22.

[0046] As a further optimization, in this embodiment, the outer diameter of the annular member 20 gradually decreases from top to bottom, and the lower end of the annular member 20 extends into the through hole, forming an annular channel between the annular member 20 and the inner wall of the through hole.

[0047] In this embodiment, the outer diameter of the annular component 20 gradually decreases from top to bottom, and the lower end of the annular component 20 extends into the through hole to form an annular channel. Particles in the air move through the annular channel to the area below the support plate 5. When the support plate 5 moves upward to scrape off the magnetic particles on the magnetic column 6, the annular component 20 can quickly abut against the inner wall of the through hole to block it, preventing magnetic material particles from falling through the annular channel to the area below the support plate 5, thereby further improving the separation effect during magnetic material recovery.

[0048] Specifically, the limiting element on the magnetic post is located in the through hole, thereby allowing the lower end of the annular element 20 to extend into the through hole.

[0049] Reference Figure 10 , Figure 10This is a front view of the crushing head in this embodiment. As a further optimization, a circular guide plate 8 is horizontally provided directly below the conical bucket 3 in this embodiment, and is coaxial with the center line of the conical bucket 3. The lower end of the crushing head 4 extends out of the conical bucket 3 and is fixedly connected to the circular guide plate 8. The upper side of the circular guide plate 8 is an inclined surface, and its thickness gradually decreases from the center to the edge.

[0050] In this embodiment, a circular guide plate 8 is set directly below the bottom of the conical hopper 3. The circular guide plate 8 can guide the magnetic material and other material particles output from the bottom of the conical hopper 3 outward. On the one hand, it increases the contact area between the particles and the ionized air, enhancing the neutralization effect on the electrostatic particles. On the other hand, the crushing head 4 extends out of the conical hopper 3 and connects to the circular guide plate 8. The crushing head 4 synchronously drives the circular guide plate 8 to rotate. The rotation of the circular guide plate 8 uses centrifugation to evenly disperse the crushed particles outward. The evenly dispersed particle clusters fall freely, reducing the occurrence of electrostatic adsorption and clumping. In addition, the evenly dispersed falling particles are also conducive to the adsorption of magnetic material particles by the magnetic column 6, further improving the separation effect of the magnetic column 6 on magnetic material and other material particles.

[0051] The above-disclosed embodiments are merely preferred embodiments of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A magnetic crushing hopper device, characterized in that, include: Housing and a rotational power unit disposed on the housing; The crushing mechanism includes a conical hopper and a crushing head. The conical hopper is vertically fixed inside the upper side of the housing, and the bottom of the conical hopper is through-hole. The crushing head is coaxially disposed in the conical hopper. The output shaft of the rotating power unit is connected to the crushing head to drive the crushing head to rotate and crush items with magnetic materials. A support plate is horizontally positioned directly below the conical bucket and coaxial with its center line; Multiple magnetic pillars are vertically arranged at equal intervals on the support plate to adsorb the crushed magnetic material particles; A driving mechanism is provided on the housing. The output end of the driving mechanism is connected to the support plate and is used to drive the support plate to rotate around its center line, thereby driving the magnetic column to stir and break up the particle clusters of magnetic materials and other materials that are electrostatically aggregated. Multiple electrodes are evenly spaced around the outside of the conical hopper and located on the side of the conical hopper close to the support plate. The electrodes are fixedly connected to the conical hopper and are electrically connected to a power source outside the housing so that the electrodes discharge to ionize the air in the bottom area of ​​the conical hopper and the crushing head, and neutralize the static electricity on magnetic materials and other material particles. Multiple air inlet pipes are equally spaced around the upper side of the housing. The side of the air inlet pipes near the crushing head is inclined downward. The air inlet pipes are located above the electrodes one by one. Multiple exhaust pipes are equally spaced around the bottom of the housing. The exhaust pipes are located below the support plate. The housing is equipped with a negative pressure suction mechanism to drive the air in the housing to flow from top to bottom. The negative pressure suction mechanism includes: a rotating shaft and a fan wheel mounted on the rotating shaft. The rotating shaft is vertically positioned below the support plate and is coaxial with the center line of the crushing head. One end of the rotating shaft is rotatably connected to the housing, and the other end is fixedly connected to the support plate. The support plate has multiple through holes at equal intervals along the vertical direction. The lower end of the magnetic column passes through the through holes and is fixedly connected to the fan blades of the impeller. The magnetic column is slidably connected to the support plate along the vertical direction. A connecting pipe is coaxially sleeved on the lower side of the rotating shaft and connected to it by a key. The rotating shaft is slidably connected to the connecting pipe along the vertical direction. One end of the rotating shaft is rotatably connected to the housing through the lower end of the connecting pipe. The impeller is fixedly mounted on the connecting pipe on the rotating shaft. A telescopic power element is provided on the crushing head. The output end of the telescopic power element is fixedly connected to the rotating shaft. The inner diameter of the through hole is larger than the outer diameter of the magnetic column. An annular part is fitted on the magnetic column and is slidably sealed to it. The outer diameter of the annular part is larger than the inner diameter of the through hole. A limiting part is fixed on the magnetic column and is located above the through hole. The limiting part abuts against the lower side of the annular part.

2. The magnetic crushing hopper device according to claim 1, characterized in that, The electrode is perpendicular to the centerline of the intake pipe.

3. The magnetic crushing hopper device according to claim 1, characterized in that, The upper end of the rotating shaft passes through the support plate and is connected to the crushing head.

4. The magnetic crushing hopper device according to claim 1, characterized in that, A sleeve is coaxially provided on the upper side of the support plate. The sleeve is rotatably connected to the support plate and slidably connected to the shell in the vertical direction. The outer side of the sleeve abuts against the inner wall of the shell. A through groove is provided at the bottom of the sleeve in the radial direction. A magnetic material outlet is provided horizontally on one side of the shell. The magnetic material outlet is located directly above the through groove.

5. The magnetic crushing hopper device according to claim 1, characterized in that, The outer diameter of the annular component gradually decreases from top to bottom, and the lower end of the annular component extends into the through hole, forming an annular channel between the annular component and the inner wall of the through hole.

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