A magnetic levitation vertical magnetic separator with adaptive sorting gap

Abstract

This invention relates to the field of mining equipment technology, specifically to a magnetic levitation vertical magnetic separator with adaptively adjustable separation gap, comprising a separation mechanism, a discharge mechanism, and a magnetic levitation support mechanism. The separation mechanism includes a frame, a fixed magnetic head, and a rotatable magnetic media ring. The discharge mechanism includes a discharge box for guiding the flow of the separated slurry, and a floating plate adapted to the slurry flow channel is provided inside the discharge box. The magnetic levitation support mechanism includes a support, an elastic damping rod, and a magnetic levitation adjustment assembly. The support is mounted on the discharge box, the floating plate is movably mounted on the support, and the elastic damping rod connects the floating plate to the support. This invention achieves the function of adaptively adjusting the separation gap according to the slurry pressure, solving the technical problem of traditional magnetic separators with fixed separation gaps where non-magnetic particles are easily mechanically trapped in magnetic particles due to fluid viscosity and gravity, thus reducing the concentrate grade.

Description

Technical Field

[0001] This invention relates to the field of mining equipment technology, specifically to a magnetic levitation vertical magnetic separator with adaptive adjustment of the separation gap. Background Technology

[0002] Currently, vertical magnetic separators generally use a fixed separation gap combined with a mechanical contact support structure. The separation gap is mostly set manually in advance and cannot be dynamically adjusted according to the real-time working conditions such as slurry pressure and leakage content. During the slurry flow, the separation state is easily disordered due to fluid impact and material stacking. At the same time, the mechanical support structure suffers from severe friction and wear over a long period of time, resulting in large vibrations during equipment operation. This not only makes it easy for non-magnetic particles to be entrained and mixed into the concentrate, but also suffers from common industry problems such as the inability to detect leakage in time, delayed feedback on working conditions, and poor adaptability of separation.

[0003] To address this, Chinese Patent Application Publication No. CN119158694A discloses an adjustable magnetic field separator, which achieves visual adjustment of magnetic field strength, making it convenient for users and allowing for easy adjustment of the magnetic field for different mineral samples to achieve corresponding separation. The provided adjustable magnetic field separator can connect different magnetic pole units via the magnetic pole slider and drive the magnetic system module to move up and down radially along the drum to adjust the shape and strength of the magnetic field. Furthermore, the radial adjustment component of the adjustable magnetic field separator has a simple and compact structure, enabling simple operation, low cost, and a compact structure that occupies little space.

[0004] However, existing magnetic separators can only passively adjust the magnetic field strength and shape, and cannot adaptively adjust the gap based on slurry pressure and leakage content. Their adjustment logic is simplistic, only suitable for stable, homogeneous ore, and incapable of handling complex conditions such as slurry pressure fluctuations and abnormal leakage. Furthermore, existing magnetic separators use traditional mechanical contact support for the drum, resulting in high mechanical friction loss and noticeable vibration. Long-term operation of rigid mechanical contact can easily lead to wear and jamming, causing a decrease in magnetic field adjustment accuracy and further reducing separation stability. Moreover, they cannot detect the content of magnetic ore missed after separation, and cannot use leakage feedback to correct separation parameters. The inability to detect leakage easily leads to the loss of magnetic ore resources. Summary of the Invention

[0005] To address the aforementioned issues, a magnetic levitation vertical magnetic separator with adaptively adjustable separation gap is provided. Through the separation mechanism, discharge mechanism, and magnetic levitation support mechanism, this design solves the technical problem in traditional magnetic separators with fixed separation gaps where non-magnetic particles are easily mechanically trapped within magnetic particles due to fluid viscosity and gravity, thus reducing concentrate grade.

[0006] To address the problems of existing technologies, this invention provides a magnetic levitation vertical magnetic separator with adaptive adjustment of the sorting gap, comprising a sorting mechanism, a discharging mechanism, and a magnetic levitation support mechanism. The sorting mechanism includes a frame, a fixed magnetic head, and a rotatable magnetic media ring. The discharging mechanism includes a discharging box for guiding the flow of sorted slurry. The discharging box is connected to the frame and located below the magnetic media ring. A floating plate adapted to the slurry flow channel is provided inside the discharging box. The magnetic levitation support mechanism includes a support, an elastic damping rod, and a magnetic levitation adjustment component. The support is disposed on the discharging box, and the floating plate is movably mounted on the support. The elastic damping rod connects the floating plate to the support, and a pressure sensor is provided at the connection point between the elastic damping rod and the support. The pressure sensor is signal-connected to the magnetic levitation adjustment component. The magnetic levitation support mechanism provides contactless support for the magnetic media ring, and the magnetic levitation adjustment component adjusts the sorting gap between the fixed magnetic head and the magnetic media ring based on the slurry pressure signal collected by the pressure sensor.

[0007] Preferably, the discharge box is further provided with an auxiliary mechanism, which includes a magnetic adsorption component and an elastic support component; the magnetic adsorption component is installed on the floating plate, and the elastic support component provides support for the support; when the equipment is working, the magnetic adsorption component adsorbs the magnetic ore in the discharge box, and under the gravity of the accumulated magnetic ore, it pulls the support to move downward, simultaneously compressing the elastic support component.

[0008] Preferably, the magnetic levitation adjustment assembly includes a rotor coil, which is mounted on a magnetic medium rotating ring; the magnetic medium rotating ring is also provided with a slip ring for supplying power to the rotor coil, and the frame is provided with a stator coil for electromagnetic cooperation with the rotor coil.

[0009] Preferably, the magnetic adsorption assembly includes a conductive terminal block, a support plate, and conductive contacts; the conductive terminal block is fixedly mounted on the support plate; the support plate is disposed inside the discharge box, and the conductive contacts are disposed on the support plate; the floating plate is provided with an electromagnetic coil for adsorbing magnetic ores, and when the conductive contacts abut against the conductive terminal block, power is supplied to the electromagnetic coil.

[0010] Preferably, the elastic support assembly includes a base, a guide plate, and a first elastic element; the base is disposed on the discharge box; the guide plate is connected to the support, and the guide plate is slidably engaged with the base; the two ends of the first elastic element are respectively connected to the base and the support.

[0011] Preferably, the conductive contact is provided with a limiting ring; the support plate is provided with a second elastic element, the two ends of the second elastic element being connected to the limiting ring and the support plate respectively.

[0012] Preferably, the base is provided with a damping mechanism for preventing the support from moving upward and resetting. The damping mechanism includes a damping block and an abutment block. The damping block is movably disposed on the base and is connected to the support in a transmission manner. The abutment block is fixedly disposed on the base and prevents the support from moving upward and resetting when the damping block abuts against the abutment block.

[0013] Preferably, the damping mechanism further includes a telescopic component, which includes a fixed hinge seat and an elastic telescopic rod; the fixed hinge seat is disposed on the support; and the two ends of the elastic telescopic rod are respectively hinged to the fixed hinge seat and the damping block.

[0014] Preferably, the floating plate is provided with an inclined surface facing the slurry inlet. In the working state, the slurry flow acts on the inclined surface, forming a component force along the axial direction of the floating plate, which pushes the floating plate to slide inward.

[0015] Preferably, the support is provided with an extension plate, which maintains the sealing of the support when the support drives the guide plate to rise and fall.

[0016] The advantages of this invention compared to the prior art are:

[0017] 1. This invention achieves adaptive adjustment of the sorting gap based on slurry pressure through a sorting mechanism, a discharge mechanism, and a magnetic levitation support mechanism. This results in adapting to different slurry conditions and ensuring stable sorting operations. It solves the technical problem of traditional magnetic separators with fixed sorting gaps, where non-magnetic particles are easily mechanically trapped within magnetic particles due to fluid viscosity and gravity, leading to a reduction in concentrate grade. The magnetic levitation adjustment component adjusts the sorting gap between the fixed magnetic head and the magnetic medium rotating ring based on the received slurry pressure signal. It utilizes non-contact support to reduce structural wear and relies on pressure feedback to adjust the sorting gap in real time, adapting to different slurry pressure states and ensuring the magnetic separator continuously and stably completes the sorting operation.

[0018] 2. This invention utilizes a magnetic adsorption component and an elastic support component to sense the amount of magnetic ore remaining in the discharge box using an auxiliary mechanism. Combined with overall machine feedback, it adaptively adjusts the sorting gap, achieving timely detection of material leakage, automatic correction of the sorting gap, and improved ore sorting utilization. As the support moves downward, the elastic support component, which provides support, is simultaneously compressed. This displacement change generates corresponding operational feedback, determining the amount of magnetic ore remaining in the discharge box. This feedback, in turn, triggers the magnetic levitation adjustment component to adjust the sorting gap between the fixed magnetic head and the magnetic medium rotating ring. By detecting the amount of leaked magnetic ore, the invention reverses the adjustment of the sorting gap size, reducing magnetic ore leakage and ensuring the sorting operation remains optimal.

[0019] 3. This invention enables continuous power supply to the rotor coil of the magnetic levitation adjustment component, and relies on the rotor coil to complete the functions of magnetic medium rotating ring support and adaptive adjustment of sorting gap. It achieves the effects of adapting to the rotating condition of the magnetic medium rotating ring, ensuring continuous and stable power supply to the rotor coil, and ensuring reliable operation of the magnetic levitation adjustment component. It solves the technical problem that the rotor coil is difficult to stably supply power when the magnetic medium rotating ring is in a rotating state, which affects the normal adjustment of the sorting gap. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap according to the present invention.

[0021] Figure 2 This is a three-dimensional schematic diagram of the discharge mechanism, support, and auxiliary mechanism of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap according to the present invention.

[0022] Figure 3 This is a three-dimensional schematic diagram of the sorting mechanism and magnetic levitation support mechanism of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap according to the present invention.

[0023] Figure 4 This is a three-dimensional exploded view of the support of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap according to the present invention.

[0024] Figure 5 This is a first-view perspective three-dimensional schematic diagram of the support of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap in the reset state according to the present invention.

[0025] Figure 6 This is a second-view perspective three-dimensional schematic diagram of the support of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap in the reset state according to the present invention.

[0026] Figure 7 This is the invention Figure 6 A magnified view of a portion of point A in the middle.

[0027] Figure 8 This is a three-dimensional schematic diagram of the base and damping mechanism of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap according to the present invention.

[0028] Figure 9 This is a three-dimensional schematic diagram of the support of a magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap after it has been moved downwards, based on the first perspective.

[0029] Figure 10 This is the invention Figure 9 A magnified view of a portion of point B in the middle.

[0030] The diagram is labeled as follows: 1. Sorting mechanism; 11. Frame; 12. Fixed magnetic head; 13. Magnetic medium rotating ring; 2. Discharge mechanism; 21. Discharge box; 3. Magnetic levitation support mechanism; 31. Support; 311. Floating plate; 312. Elastic damping rod; 313. Extension plate; 32. Magnetic levitation adjustment assembly; 321. Rotor coil; 4. Auxiliary mechanism; 41. Magnetic adsorption assembly; 411. Conductive terminal block; 412. Support plate; 413. Conductive contact; 4131. Limiting ring; 414. Second elastic element; 42. Elastic support assembly; 421. Base; 422. Guide plate; 423. First elastic element; 5. Damping mechanism; 51. Damping block; 52. Abutment block; 53. Telescopic assembly; 531. Fixed hinge seat; 532. Elastic telescopic rod. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 4 A vertical magnetic separator with adaptively adjustable separation gap includes a separation mechanism 1, a discharge mechanism 2, and a magnetic levitation support mechanism 3. The separation mechanism 1 includes a frame 11, a fixed magnetic head 12, and a rotatable magnetic medium rotating ring 13. The discharge mechanism 2 includes a discharge box 21 for guiding the flow of the separated slurry. The discharge box 21 is connected to the frame 11 and located below the magnetic medium rotating ring 13. A floating plate 311 adapted to the slurry flow channel is provided inside the discharge box 21. The magnetic levitation support mechanism 3 includes a support 31, an elastic damping rod 312, and a magnetic levitation adjustment assembly 32. 1. A floating plate 311 is movably mounted on the support 31 and installed on the discharge box 21. An elastic damping rod 312 connects the floating plate 311 and the support 31. A pressure sensor is provided at the connection position between the elastic damping rod 312 and the support 31. The pressure sensor is signal-connected to the magnetic levitation adjustment component 32. The magnetic levitation support mechanism 3 is used to support the magnetic medium rotating ring 13 without contact. The magnetic levitation adjustment component 32 adjusts the sorting gap between the fixed magnetic head 12 and the magnetic medium rotating ring 13 according to the slurry pressure signal collected by the pressure sensor.

[0033] This invention achieves the function of adaptively adjusting the separation gap according to the slurry pressure through the separation mechanism 1, the discharge mechanism 2 and the magnetic levitation support mechanism 3, thus achieving the effect of adapting to the slurry conditions and stabilizing the separation operation. It solves the technical problem that in traditional magnetic separators with fixed separation gaps, non-magnetic particles are easily mechanically trapped in magnetic particles due to fluid viscosity and gravity, which reduces the concentrate grade. During operation, the magnetic media rotating ring 13 in the sorting mechanism 1 is supported without contact by the magnetic levitation support mechanism 3 and remains rotatable. The slurry is sorted between the fixed magnetic head 12 and the magnetic media rotating ring 13. The sorted slurry flows into the discharge box 21 below. The flowing slurry acts on the floating plate 311 inside the discharge box 21. The floating plate 311 moves on the support 31 under force. The floating plate 311 causes the elastic damping rod 312 to change the force. The pressure sensor between the elastic damping rod 312 and the support 31 senses the pressure change and generates a pressure signal. The pressure sensor transmits the signal to the magnetic levitation adjustment component 32. The magnetic levitation adjustment component 32 adjusts the sorting gap between the fixed magnetic head 12 and the magnetic media rotating ring 13 according to the received slurry pressure signal. The non-contact support reduces structural wear, and the pressure feedback is used to adjust the sorting gap in real time to adapt to different slurry pressure states, ensuring that the magnetic separator can continuously and stably complete the sorting operation.

[0034] Reference Figures 2 to 4 The discharge box 21 is also equipped with an auxiliary mechanism 4, which includes a magnetic adsorption component 41 and an elastic support component 42. The magnetic adsorption component 41 is installed on the floating plate 311, and the elastic support component 42 supports the support 31. When the equipment is working, the magnetic adsorption component 41 adsorbs the magnetic ore in the discharge box 21, and under the gravity of the accumulated magnetic ore, it pulls the support 31 to move downward, and simultaneously compresses the elastic support component 42.

[0035] This invention achieves the function of sensing the amount of magnetic ore left in the discharge box 21 with the help of the auxiliary mechanism 4 through the magnetic adsorption component 41 and the elastic support component 42, and adaptively adjusting the sorting gap in conjunction with the feedback of the whole machine, so as to realize the effect of timely detection of material leakage in sorting, automatic correction of sorting gap, and improvement of ore sorting utilization rate. When the equipment is working, the fixed magnetic head 12 and the magnetic medium rotating ring 13 work together to perform sorting operations on the slurry. Under normal conditions, the magnetic ore will be adsorbed by the magnetic medium rotating ring 13 and sorted. A small amount of magnetic ore that is not adsorbed by the magnetic medium rotating ring 13 will fall into the discharge box 21 along with the slurry. The magnetic adsorption component 41 of the auxiliary mechanism 4 is installed on the floating plate 311 in the discharge box 21. It can adsorb and collect the magnetic ore that falls into the discharge box 21. As the amount of magnetic ore adsorbed increases, its own gravity will pull the support 31 to move downward. At the same time as the support 31 moves downward, the elastic support component 42 that plays a supporting role is compressed. The displacement change forms a corresponding working condition feedback, thereby judging the amount of magnetic ore in the discharge box 21. Then, the magnetic levitation adjustment component 32 is linked to adjust the sorting gap between the fixed magnetic head 12 and the magnetic medium rotating ring 13 accordingly. By detecting the content of leaked magnetic ore, the size of the sorting gap is adjusted in reverse to reduce the leakage of magnetic ore and keep the sorting operation in a reasonable state.

[0036] Reference Figures 1 to 3 The magnetic levitation adjustment assembly 32 includes a rotor coil 321, which is mounted on a magnetic medium rotating ring 13. The magnetic medium rotating ring 13 is also equipped with a slip ring for supplying power to the rotor coil 321. The frame 11 is provided with a stator coil for electromagnetic cooperation with the rotor coil 321.

[0037] This invention provides continuous power to the rotor coil 321 of the magnetic levitation adjustment assembly 32. The rotor coil 321, in conjunction with the magnetic medium rotating ring 13, supports the magnetic medium rotating ring 13 and adaptively adjusts the sorting gap. This achieves the effects of adapting to the rotational conditions of the magnetic medium rotating ring 13, ensuring continuous and stable power supply to the rotor coil 321, and ensuring reliable operation of the magnetic levitation adjustment assembly 32. It solves the technical problem that the rotor coil 321 is difficult to stably supply power to when the magnetic medium rotating ring 13 is rotating, thus affecting the normal adjustment of the sorting gap. During operation, the rotor coil 321 of the magnetic levitation adjustment assembly 32 is mounted on the magnetic medium rotating ring 13. A slip ring on the magnetic medium rotating ring 13 continuously supplies power to the rotor coil 321. The stator coil on the frame 11 is synchronously energized. An electromagnetic force is formed between the energized stator coil and the rotor coil 321, which suspends and supports the magnetic medium rotating ring 13, achieving a contactless support effect. Simultaneously, the magnitude of the electromagnetic force between the two sets of coils can be adjusted by changing the coil energization state. The electromagnetic pull and repulsion force drive the magnetic medium rotating ring 13 to move slightly, thereby changing the distance between the magnetic medium rotating ring 13 and the fixed magnetic head 12. In conjunction with the slurry pressure signal collected by the pressure sensor, the adaptive adjustment of the sorting gap is completed. The slip ring ensures that the rotor coil 321 is continuously energized during rotation. The stator coil and the rotor coil 321 always maintain an electromagnetic coordination state, which can stably support the magnetic medium rotating ring 13 and flexibly adjust the position of the rotating ring to change the sorting gap. The overall operation has no hard mechanical contact, and the adjustment action is smooth and sensitive, further improving the reliability of the adaptive adjustment of the sorting gap.

[0038] Reference Figure 3 , Figure 5 , Figure 6 and Figure 7 The magnetic adsorption assembly 41 includes a conductive terminal block 411, a support plate 412, and a conductive contact 413. The conductive terminal block 411 is fixedly mounted on the support 31. The support plate 412 is disposed inside the discharge box 21, and the conductive contact 413 is disposed on the support plate 412. The floating plate 311 is provided with an electromagnetic coil for adsorbing magnetic ores. When the conductive contact 413 abuts against the conductive terminal block 411, it provides power to the electromagnetic coil.

[0039] This invention achieves the function of controlling the on / off state of the electromagnetic coil through the contact and engagement of the conductive contact 413 and the conductive terminal block 411, thereby controlling the adsorption of any magnetic ore left in the discharge box 21. It also achieves the effect of automatically cutting off power and discharging the ore after a certain amount has been adsorbed. During operation, the conductive terminal block 411 in the magnetic adsorption assembly 41 is fixedly installed on the support 31, the support plate 412 is placed inside the discharge box 21, the conductive contact 413 is mounted on the support plate 412, and the electromagnetic coil capable of adsorbing magnetic ore is installed on the floating plate 311. When the operating conditions of the equipment change, causing the corresponding structural position to shift, the conductive contact 413 on the support plate 412 can form contact with the conductive terminal block 411 on the support 31. After contact, the electromagnetic coil on the floating plate 311... Once the power supply is complete, the electromagnetic coil, after being energized, adsorbs and aggregates the magnetic ores remaining in the discharge box 21 that were not properly separated by the magnetic medium rotating ring 13. Simultaneously, with the scouring action of the slurry water flow in the discharge box 21, some of the adsorbed magnetic ores detach from the floating plate 311 under the scouring action of the slurry water flow. The adsorbed magnetic ores, after adhering to the floating plate 311, generate gravity and drive the support 31 downward, thus providing feedback on the amount of magnetic ores in the discharge box 21 and providing auxiliary basis for the adaptive adjustment of the separation gap. If the adsorbed magnetic ores particles are small, they cannot be carried away by the water flow and slurry and will drive the support 31 downward as the magnetic ores accumulate. When the electromagnetic coil adsorbs a large amount of magnetic ore or a large accumulation of small magnetic ore particles in a short period of time, the support 31 moves downward under the action of gravity, the elastic support component 42 is compressed, the conductive contact 413 and the conductive terminal block 411 are separated from each other, the electromagnetic coil is then de-energized and the magnetic ore adsorption operation is stopped, the equipment triggers an alarm, and the accumulated magnetic ore is discharged along with the slurry so that the operator can handle it and continue the subsequent adsorption feedback work.

[0040] Reference Figure 4 , Figure 5 , Figure 6 and Figure 8 The elastic support assembly 42 includes a base 421, a guide plate 422, and a first elastic element 423; the base 421 is disposed on the discharge box 21; the guide plate 422 is connected to the support 31, and the guide plate 422 and the base 421 are slidably engaged; the two ends of the first elastic element 423 are respectively connected to the base 421 and the support 31.

[0041] This invention achieves the functions of sliding limit and elastic support for the support 31 using the elastic support component 42, thus constraining the movement trajectory of the support 31, ensuring smooth sliding of the support 31, and automatically rebounding and resetting after being subjected to force. When the magnetic adsorption component 41 adsorbs magnetic ore, causing the support 31 to move downward under gravity, the guide plate 422 slides against the base 421, restricting the support 31 to move only in a fixed direction, preventing the support 31 from tilting or jamming. At the same time, the downward movement of the support 31 compresses the first elastic element 423, which always maintains a supporting effect on the support 31. When the amount of magnetic ore inside the discharge box 21 decreases and the effect of gravity weakens, the first elastic element 423 rebounds and pushes the support 31 back to its original position, allowing the support 31 to repeatedly follow the changes in ore weight to produce regular displacement, ensuring the accuracy of magnetic ore inventory detection, and assisting in the adjustment of the sorting gap with the whole machine, making the movement of the support 31 more stable and smooth, and further improving the stability of the equipment's operating condition feedback.

[0042] Reference Figure 6 and Figure 7 The conductive contact 413 is provided with a limiting ring 4131; the support plate 412 is provided with a second elastic element 414, and the two ends of the second elastic element 414 are respectively connected to the limiting ring 4131 and the support plate 412.

[0043] This invention achieves the function of elastically constraining and adaptively fitting the conductive contact 413 through the limiting ring 4131 and the second elastic element 414, thus ensuring that the conductive contact 413 and the conductive terminal seat 411 always maintain reliable contact and automatically separate after the support 31 moves down a certain distance. When the equipment is working, the second elastic element 414 uses its own elasticity to form an elastic pressure limit on the conductive contact 413, allowing the conductive contact 413 to adaptively fit the conductive terminal seat 411 with the slight movement of the structure, limiting the displacement and sway of the conductive contact 413, and at the same time buffering the vibration generated by the operation of the equipment, preventing the conductive contact 413 from accidentally separating from the conductive terminal seat 411, ensuring a stable contact and energizing state, and maintaining the normal energization of the electromagnetic coil on the floating plate 311. After the support 31 moves down to the designated position, the conductive contact 413 moves down to the end of its stroke. When the support 31 continues to move down, the conductive contact 413 separates from the conductive terminal seat 411, stopping the power supply to the electromagnetic coil.

[0044] Reference Figure 5 , Figure 8 , Figure 9 and Figure 10The base 421 is provided with a damping mechanism 5 for preventing the support 31 from moving upward and resetting. The damping mechanism 5 includes a damping block 51 and an abutment block 52. The damping block 51 is movably disposed on the base 421 and is connected to the support 31 in a transmission manner. The abutment block 52 is fixedly disposed on the base 421. When the damping block 51 abuts against the abutment block 52, it prevents the support 31 from moving upward and resetting.

[0045] This invention achieves the function of using the damping mechanism 5 to prevent the support 31 from rapidly moving upward and resetting, and to delay the rebound action of the support 31. It allows time for the magnetic ore to detach after the electromagnetic coil is de-energized, thus achieving the effect of restoring the weight of the support 31 after the electromagnetic coil is de-energized. When the equipment is working, as the weight of the magnetic ore adsorbed inside the discharge box 21 decreases, the first elastic element 423 drives the support 31 to move upward and reset. The support 31 then drives the damping block 51 to move synchronously. After moving, the damping block 51 abuts against the fixed abutment block 52, using the abutment force to restrict the movement of the damping block 51, thereby preventing the support 31 from rapidly moving upward and resetting, slowing down the rebound speed of the support 31, avoiding the vibration deviation caused by the instantaneous rebound of the support 31, maintaining a more stable stopping state of the support 31, extending the duration of the magnetic ore gravity feedback, ensuring that the equipment can stably identify changes in the ore content inside the discharge box 21, and assisting the whole machine in accurately completing the adaptive adjustment of the sorting gap.

[0046] Reference Figure 5 , Figure 8 , Figure 9 and Figure 10 The damping mechanism 5 further includes a telescopic component 53, which includes a fixed hinge seat 531 and an elastic telescopic rod 532. The fixed hinge seat 531 is mounted on the support 31. The two ends of the elastic telescopic rod 532 are respectively hinged to the fixed hinge seat 531 and the damping block 51.

[0047] This invention enables the connection between the damping block 51 and the support 31 via a telescopic component 53. The base 421 has a protruding strip that slides with the damping block 51. During operation, as the support 31 moves up and down, the elastic telescopic rod 532 drives the damping block 51 to move on the base 421. The hinged structure adapts to the angle of movement of the damping block 51, preventing transmission jamming. The elastic telescopic rod 532 buffers mechanical impacts during transmission and guides the movement of the damping block 51 through the protruding strip, ensuring smooth movement. When the support 31 returns to its original position, the elastic telescopic rod 532 pushes the damping block 51 to engage with the abutment block 52, slowing the upward movement of the support 31. Only when the weight of the support 31 is reduced to a certain amount can it be pushed upward. This, combined with the first elastic element 423, controls the rebound rhythm of the support 31, continuously and stably retaining the ore inventory feedback signal, ensuring accurate and reliable adaptive adjustment of the sorting gap.

[0048] Reference Figure 4 The floating plate 311 is provided with an inclined surface facing the slurry inlet. In the working state, the slurry flow acts on the inclined surface, forming a component force along the axial direction of the floating plate 311, which pushes the floating plate 311 to slide inward.

[0049] This invention utilizes the inclined surface of a floating plate 311 to receive the slurry flow, converting the impact force of the slurry into axial thrust to drive the floating plate 311 to contract and displace. During operation, the flowing slurry directly impacts the inclined surface, which decomposes the force of the slurry flow into a component force along the axial direction of the floating plate 311. This component force smoothly pushes the floating plate 311 to contract. After contraction, the floating plate 311, in conjunction with the elastic damping rod 312 and a pressure sensor, collects pressure signals, converting the slurry flow state into a direct mechanical displacement signal. This provides a real and stable slurry pressure basis for the magnetic levitation adjustment component 32, working together with other internal structures to achieve adaptive adjustment of the sorting gap. The inclined surface's force distribution is more aligned with the slurry flow direction, reducing force interference caused by turbulence, making the floating plate 311's sensing action more sensitive and smooth, and further improving the accuracy of the overall adaptive adjustment.

[0050] Reference Figure 4 and Figure 9 The support 31 is provided with an extension plate 313. When the support 31 drives the guide plate 422 to rise and fall, the extension plate 313 maintains the sealing of the support 31.

[0051] This invention achieves the effects of preventing slurry and impurities from entering the gaps, protecting the internal connection structure, and ensuring smooth lifting and lowering of the support 31. It solves the technical problem that there is a movable gap between the support 31 and the discharge box 21, which allows slurry and fine ore impurities to easily seep into the gap, causing structural jamming and corrosion, and affecting the displacement accuracy of the support 31. When the equipment is working, as the support 31 drives the guide plate 422 to move up and down, the extension plate 313 moves synchronously with the support 31, always covering the movable gap between the support 31 and the discharge box 21, continuously maintaining the sealed state of the support 31, preventing slurry leakage and impurity accumulation at the sliding fit position, preventing the elastic support component 42 and the pressure sensing structure from being corroded and contaminated, ensuring smooth lifting and sliding of the support 31 without jamming, and assisting the whole machine to continuously complete the adaptive adjustment of the sorting gap.

[0052] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap, characterized in that, It includes a sorting mechanism (1), a discharge mechanism (2), and a magnetic levitation support mechanism (3); The sorting mechanism (1) includes a frame (11), a fixed magnetic head (12), and a rotatable magnetic medium ring (13). The discharge mechanism (2) includes a discharge box (21) for guiding the flow of the sorted slurry. The discharge box (21) is connected to the frame (11) and located below the magnetic medium rotating ring (13). The discharge box (21) is provided with a floating plate (311) adapted to the slurry flow channel. The magnetic levitation support mechanism (3) includes a support (31), an elastic damping rod (312), and a magnetic levitation adjustment component (32). The support (31) is disposed on the discharge box (21). The floating plate (311) is movably installed on the support (31). The elastic damping rod (312) connects the floating plate (311) and the support (31). A pressure sensor is provided at the connection position between the elastic damping rod (312) and the support (31). The pressure sensor is signal-connected to the magnetic levitation adjustment component (32). The magnetic levitation support mechanism (3) is used to support the magnetic medium rotating ring (13) without contact. The magnetic levitation adjustment component (32) adjusts the sorting gap between the fixed magnetic head (12) and the magnetic medium rotating ring (13) according to the slurry pressure signal collected by the pressure sensor.

2. The magnetic levitation vertical magnetic separator with adaptive adjustment of sorting gap according to claim 1, characterized in that, The discharge box (21) is also provided with an auxiliary mechanism (4), which includes a magnetic adsorption component (41) and an elastic support component (42). The magnetic adsorption component (41) is installed on the floating plate (311), and the elastic support component (42) provides support to the support (31). When the equipment is working, the magnetic adsorption component (41) adsorbs the magnetic ore in the discharge box (21), and under the gravity of the accumulated magnetic ore, the support (31) is pulled to move downward, and the elastic support component (42) is compressed simultaneously.

3. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 1, characterized in that, The magnetic levitation adjustment assembly (32) includes a rotor coil (321), which is installed on a magnetic medium rotating ring (13). The magnetic medium rotating ring (13) is also equipped with a slip ring for supplying power to the rotor coil (321), and the frame (11) is provided with a stator coil for electromagnetic cooperation with the rotor coil (321).

4. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 2, characterized in that, The magnetic adsorption assembly (41) includes a conductive terminal block (411), a support plate (412), and a conductive contact (413). The conductive terminal block (411) is fixedly mounted on the support (31); The support plate (412) is disposed inside the discharge box (21), and the conductive contact (413) is disposed on the support plate (412); The floating plate (311) is provided with an electromagnetic coil for adsorbing magnetic ores. When the conductive contact (413) abuts against the conductive terminal block (411), the electromagnetic coil is powered.

5. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 4, characterized in that, The elastic support assembly (42) includes a base (421), a guide plate (422), and a first elastic element (423). The base (421) is mounted on the discharge box (21); The guide plate (422) is connected to the support (31), and the guide plate (422) is slidably engaged with the base (421); The two ends of the first elastic element (423) are connected to the base (421) and the support (31) respectively.

6. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 4, characterized in that, The conductive contact (413) is provided with a limiting ring (4131). The support plate (412) is provided with a second elastic element (414), and the two ends of the second elastic element (414) are respectively connected to the limiting ring (4131) and the support plate (412).

7. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 5, characterized in that, The base (421) is provided with a damping mechanism (5) for preventing the support (31) from moving upward and resetting. The damping mechanism (5) includes a damping block (51) and an abutment block (52). The damping block (51) is movably mounted on the base (421), and the damping block (51) is connected to the support (31) in a transmission manner; The abutment block (52) is fixedly mounted on the base (421). When the damping block (51) abuts against the abutment block (52), it prevents the support (31) from moving upward and resetting.

8. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 7, characterized in that, The damping mechanism (5) further includes a telescopic assembly (53), which includes a fixed hinge seat (531) and an elastic telescopic rod (532). The fixed hinge seat (531) is mounted on the support (31); The two ends of the elastic telescopic rod (532) are respectively hinged to the fixed hinge seat (531) and the damping block (51).

9. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 1, characterized in that, The floating plate (311) is provided with an inclined surface facing the slurry inlet. In the working state, the slurry flows onto the inclined surface, forming a component force along the axial direction of the floating plate (311), which pushes the floating plate (311) to slide inward.

10. A magnetic levitation vertical magnetic separator with adaptively adjustable sorting gap according to claim 4, characterized in that, The support (31) is provided with an extension plate (313). When the support (31) drives the guide plate (422) to rise and fall, the extension plate (313) maintains the sealing of the support (31).

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