Elutriating magnetic separator
By designing an independent water supply space and a rotating water flow structure in the washing magnetic separator, the problem of the single water outlet position affecting the separation effect in existing magnetic separation equipment has been solved, thus improving the separation efficiency and accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- LONGI MAGNET CO LTD
- Filing Date
- 2023-04-07
- Publication Date
- 2026-07-07
AI Technical Summary
The existing magnetic separators have only one outlet, which makes the separation effect easily affected and the separation efficiency low, especially when the input material fluctuates.
Design a washing magnetic separator, which employs a separation device, a feeding device, a discharging device, and a water supply device. The water supply device includes a first and a second water supply space. The first water supply space is located near the bottom of the separation cylinder to rotate the water flow, and the second water supply space is used to replenish water, ensuring uniform water supply and separation effect.
By rotating the water flow to move the slurry, impurities are effectively separated from the ore, which compensates for insufficient water supply at the bottom, improves the sorting efficiency and accuracy, achieves uniform water supply, and enhances the sorting effect.
Smart Images
Figure CN116328935B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of mineral processing technology, and more specifically, to a washing magnetic separator. Background Technology
[0002] Currently, the equipment used in magnetite beneficiation plants includes: magnetic separators, desliming troughs, magnetic separation columns, and washing machines. Among these, the magnetic separator is a permanent magnet product, working on the principle of using magnetic force to attract magnetic materials. However, the separated concentrate often contains magnetic inclusions, affecting the concentrate grade. The desliming trough is also a permanent magnet product, working on the principle of using the combined effects of material gravity, rising water buoyancy, and magnetic field force for separation. However, because its magnetic field is a single, fixed permanent magnet, the separation efficiency is low, and fluctuations in the input material significantly affect the separation effect. Both the magnetic separation column and the washing machine are electromagnetic products. Their working principle involves filling the separation cylinder with backwash water flowing upwards. The slurry is fed into the upper part of the separation cylinder, where concentrate particles agglomerate and sink under the influence of the magnetic field, while tailings overflow and are flushed out from the top of the separation cylinder. This type of equipment can effectively refine the concentrate and improve its grade. However, when water is injected into the sorting cylinder, there is only one water outlet located at the bottom of the sorting cylinder, which makes it impossible to achieve uniform water supply and easily affects the sorting effect. Summary of the Invention
[0003] In view of this, the present invention proposes a washing magnetic separator, which aims to solve the problem that the existing magnetic separation column, washing machine and other equipment with only one water outlet position can easily affect the separation effect.
[0004] This invention proposes a washing magnetic separator, which includes: a separation drum, a separation device, a feeding device, a discharge device, and a water supply device; wherein, the feeding device is disposed in the separation drum for conveying slurry into the separation drum; the separation device is disposed in the separation drum for separating ore and impurities in the slurry; the water supply device is disposed in the separation drum and has a first water supply space and a second water supply space, the first water supply space being close to the bottom of the separation drum for injecting water into the separation drum and causing the water flow to rotate; the second water supply space is used to provide supplementary water into the separation drum; the discharge device is disposed at the top of the separation drum and is connected to the interior of the separation drum for discharging impurities overflowing to the top of the separation drum; a discharge port is provided at the bottom of the separation drum.
[0005] Furthermore, in the aforementioned washing magnetic separator, the water supply device includes: a water supply cylinder, a support, a partition, a water supply mechanism, and multiple water distribution mechanisms; wherein, the water supply cylinder is installed inside the sorting cylinder via the support; the partition is horizontally installed inside the water supply cylinder to divide the interior of the water supply cylinder into a first water supply space and a second water supply space; the water supply mechanism is connected to both the first and second water supply spaces; multiple water outlet holes are opened on the cylinder wall corresponding to the second water supply space; each water distribution mechanism is spaced apart on the outer wall of the water supply cylinder corresponding to the first water supply space, and each water distribution mechanism is used to rotate and transport water into the sorting cylinder.
[0006] Furthermore, in the above-mentioned washing magnetic separator, each water distribution mechanism includes: a water distribution pipe; wherein, the first end of the water distribution pipe is connected to the outer wall of the water supply cylinder corresponding to the first water supply space, the second end of the water distribution pipe is connected to the inner wall of the separation cylinder, and the water distribution pipe is connected to the first water supply space, and a water conveying hole is opened on the side wall of the water distribution pipe.
[0007] Furthermore, in the aforementioned washing magnetic separator, each water separation mechanism also includes a guide plate and a baffle; wherein, the guide plate is disposed on the side wall of the water separation pipe and positioned below the water inlet, the guide plate is horizontally disposed, and the baffle is vertically disposed at the end of the guide plate near the inner wall of the separation cylinder.
[0008] Furthermore, in the aforementioned washing magnetic separator, the water supply mechanism includes: a first water supply pipe and a second water supply pipe; wherein, the first end of the first water supply pipe is placed outside the sorting cylinder, and the second end of the first water supply pipe is connected to the first water supply space; the first end of the second water supply pipe is placed outside the sorting cylinder, and the second end of the second water supply pipe is connected to the second water supply space.
[0009] Furthermore, the aforementioned washing magnetic separator also includes: a fixing mechanism and a positioning mechanism; wherein, the discharge device includes: an overflow outer cylinder and an overflow inner cylinder; the overflow inner cylinder is connected to the top of the sorting cylinder, and the interior of the overflow inner cylinder is connected to the interior of the sorting cylinder, and the overflow outer cylinder is sleeved on the outside of the overflow inner cylinder; the feeding device includes: a feeding cylinder and a conveying cylinder placed inside the sorting cylinder and open at both ends; part or all of the feeding cylinder is placed outside the overflow outer cylinder and connected to the overflow outer cylinder through the fixing mechanism, and the feeding cylinder is connected to the first end of the conveying cylinder; the positioning mechanism is set at the second end of the conveying cylinder to position the conveying cylinder.
[0010] Furthermore, in the aforementioned washing magnetic separator, the fixing mechanism includes: an annular mounting plate, multiple support plates, and multiple base plates; wherein, the top of the overflow outer cylinder is open, and the mounting plate is located on the top of the overflow outer cylinder; each support plate is spaced apart on the outer wall of the feed cylinder located outside the overflow outer cylinder, and each base plate is correspondingly located on the bottom of each support plate; each base plate is detachably connected to the mounting plate.
[0011] Furthermore, in the aforementioned washing magnetic separator, each base plate is provided with a connection hole, and the mounting plate is provided with multiple mounting holes spaced apart along the circumference; the connection holes and the mounting holes are connected by bolts.
[0012] Furthermore, in the aforementioned washing magnetic separator, the connecting hole is elongated, and the length direction of the connecting hole is consistent with the length direction of the base plate; and / or, the mounting hole is arc-shaped.
[0013] Furthermore, in the aforementioned washing magnetic separator, the positioning mechanism includes: a guide cone and multiple connecting parts; wherein, the guide cone is disposed at the second end of the feed cylinder through the connecting parts, and the connecting parts are spaced apart along the circumference of the guide cone, the tip of the guide cone faces the inside of the feed cylinder, the straight end of the guide cone is a closed end and has a positioning hole, and the guide cone is used to guide the flow of slurry; the top of the water supply cylinder is conical and inserted into the positioning hole.
[0014] Furthermore, in the aforementioned washing magnetic separator, reinforcing ribs are provided on the outer wall of the connection between the overflow inner cylinder and the sorting cylinder.
[0015] In this invention, a feeding device delivers slurry into the sorting cylinder, and a separation device separates the ore and impurities in the slurry. The separated impurities can overflow to the top of the sorting cylinder and be discharged through a discharge device. A water supply device injects water into the sorting cylinder to provide water flow for the slurry sorting. The first water supply space and the second water supply space are two independent spaces. The first water supply space is close to the bottom of the sorting cylinder and allows the water flow to rotate inside the cylinder. The rotating water flow can drive the slurry to move, ensuring that impurities are effectively separated from the ore. The second water supply space is located above the first water supply space and provides supplementary water into the sorting cylinder, which can compensate for the insufficient water supply at the bottom of the sorting cylinder, so that there is sufficient rising water flow at the top of the sorting cylinder, improving the sorting efficiency and effect. The water supply device can achieve uniform water supply and water supply at different positions in the sorting cylinder, improving the sorting effect of the water flow and effectively playing the role of water supply, thereby improving the sorting accuracy and sorting effect. This solves the problem in the prior art that magnetic separation columns, washing machines and other equipment with only one water outlet position are prone to affecting the sorting effect. Attached Figure Description
[0016] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0017] Figure 1 This is a schematic diagram of the structure of the washing magnetic separator provided in an embodiment of the present invention;
[0018] Figure 2 This is a top view of the washing magnetic separator provided in an embodiment of the present invention;
[0019] Figure 3 for Figure 1 Schematic diagram of the structure at point AA;
[0020] Figure 4 for Figure 1 Schematic diagram of the structure at point BB;
[0021] Figure 5 This is a bottom view of the guide cone structure in the washing magnetic separator provided in an embodiment of the present invention. Detailed Implementation
[0022] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0023] See Figures 1 to 5 The figure shows a preferred structure of the washing magnetic separator in this embodiment. As shown, the washing magnetic separator includes: a sorting cylinder 1, a separating device 2, a feeding device 3, a discharging device 4, and a water supply device 5. The top of the sorting cylinder 1 (… Figure 1 The upper part shown is in an open state, and the bottom of the sorting cylinder 1 ( Figure 1 The lower part shown is conical, that is, the sorting cylinder 1 has a conical bottom, and the conical bottom of the sorting cylinder 1 has a discharge port.
[0024] The feeding device 3 is installed in the sorting cylinder 1, and is used to feed slurry into the sorting cylinder 1. Specifically, the top of the feeding device 3 ( Figure 1 The upper part shown is placed outside the sorting cylinder 1, the feeding device 3 passes through the top of the sorting cylinder 1, and the bottom of the feeding device 3 ( Figure 1 The lower part (shown) is placed inside the separating cylinder 1. The bottom of the feeding device 3 is open. The feeding device 3 receives the slurry and transports it into the interior of the separating cylinder 1. The slurry includes useful magnetic particles as well as impurities such as gangue and poor intergrowth. The useful magnetic particles settle downwards and are discharged from the discharge port to form concentrate; the impurities are flushed upwards and overflow to form tailings.
[0025] Separation device 2 is installed in the sorting cylinder 1 and is used to separate minerals and impurities in the slurry. Specifically, separation device 2 includes a magnetic field generating device 21 and a housing 22. The magnetic field generating device 21 is disposed on the outer wall of the sorting cylinder 1, and the housing 22 is installed around the magnetic field generating device 21. The housing 22 is used to protect the magnetic field generating device 21, which is used to generate or induce a magnetic field inside the sorting cylinder 1, providing a magnetic field environment for the interior of the sorting cylinder 1, facilitating the separation of magnetic particles in the slurry. In specific implementations, the magnetic field generating device 21 can be an electromagnetic device or a permanent magnet device, as long as it is a device capable of generating a magnetic field. This embodiment does not impose any restrictions on the specific structure of the magnetic field generating device 21.
[0026] A water supply device 5 is installed in the sorting cylinder 1. The water supply device 5 has an independent first water supply space 6 and a second water supply space 7. The second water supply space 7 and the first water supply space 6 are arranged vertically along the height direction of the sorting cylinder 1. The first water supply space 6 is located at the bottom, meaning it is closer to the bottom of the sorting cylinder 1 than the second water supply space 7. Correspondingly, the second water supply space 7 is located at the top, meaning it is closer to the top of the sorting cylinder 1. The height direction of the sorting cylinder 1 is... Figure 1 The direction is shown from top to bottom. The first water supply space 6 is used to inject water into the sorting cylinder 1 and rotate the water flow to ensure effective separation of impurities and minerals. The second water supply space 7 is used to provide supplementary water into the sorting cylinder 1, which can compensate for the insufficient water supply at the bottom of the sorting cylinder 1, so that there is a preset amount of rising water flow at the top of the sorting cylinder 1. The preset amount can be determined according to the actual situation, and this embodiment does not impose any restrictions on it.
[0027] The discharge device 4 is located at the top of the sorting cylinder 1 and is connected to the interior of the sorting cylinder 1. The discharge device 4 is used to discharge the impurities that overflow to the top of the sorting cylinder 1.
[0028] In practice, the washing magnetic separator is equipped with a control cabinet and control system to automatically regulate and monitor the operating status of the washing magnetic separator, enabling the washing magnetic separator to operate automatically and without human intervention.
[0029] In practice, a concentrate valve 13 can be installed at the discharge port at the bottom of the sorting cylinder 1. The opening size of the concentrate valve 13 can be automatically controlled by the control cabinet, thereby controlling the speed and concentration of concentrate discharge and regulating the operating status of the washing magnetic separator.
[0030] As can be seen, in this embodiment, the feeding device 3 delivers slurry into the sorting cylinder 1, the separation device 2 separates the ore and impurities in the slurry, and the separated impurities can overflow to the top of the sorting cylinder 1 and be discharged through the discharge device 4. The water supply device 5 injects water into the sorting cylinder 1 to provide water flow for the slurry sorting. The first water supply space 6 and the second water supply space 7 are two independent spaces. The first water supply space 6 is close to the bottom of the sorting cylinder 1 and makes the water flow rotate inside the sorting cylinder 1. The rotating water flow can drive the slurry to move, ensuring that impurities are effectively separated from the ore. The second water supply space 7 is located above the first water supply space 6 and provides supplemental water to the sorting cylinder 1. This can compensate for the insufficient water supply at the bottom of the sorting cylinder 1, ensuring sufficient upward water flow at the top of the sorting cylinder, thus improving the sorting efficiency and effect. The water supply device 5 can achieve uniform water supply and water supply at different positions within the sorting cylinder 1, improving the sorting effect of the water flow and effectively utilizing the water supply function. This, in turn, improves the sorting accuracy and effect, solving the problem in existing technologies where magnetic separation columns, washing machines, and other equipment have only one water outlet, which can easily affect the sorting effect.
[0031] See Figure 1 , Figure 3 and Figure 4 In the above embodiment, the water supply device 5 includes: a water supply cylinder 51, a support 52, a partition 53, a water supply mechanism 54, and multiple water distribution mechanisms. Both ends of the water supply cylinder 51 are closed, and the interior of the water supply cylinder 51 is hollow. The water supply cylinder 51 is mounted inside the sorting cylinder 1 via the support 52. Specifically, the water supply cylinder 51 is suspended inside the sorting cylinder 1, and the vertical center line of the water supply cylinder 51 is aligned with the vertical center line of the sorting cylinder 1, i.e., the water supply cylinder 51 and the sorting cylinder 1 are coaxially arranged. The outer wall of the water supply cylinder 51 is connected to the inner wall of the sorting cylinder 1 via the support 52. Multiple supports 52 can be used, and each support 52 can be evenly and spaced apart along the circumference of the water supply cylinder 51.
[0032] In specific implementation, the bracket 52 can be a support plate, support rod or support bar, as long as it can play a supporting role. This embodiment does not impose any restrictions on this.
[0033] The partition 53 is horizontally disposed inside the water supply cylinder 51. Specifically, the partition 53 divides the internal space of the water supply cylinder 51 into two parts, namely the first water supply space 6 and the second water supply space 7. The first water supply space 6 is located below the partition 53 and close to the bottom of the sorting cylinder 1, and the second water supply space 7 is located above the partition 53 and close to the top of the sorting cylinder 1.
[0034] The water supply mechanism 54 is connected to both the first water supply space 6 and the second water supply space 7, and the water supply mechanism 54 supplies water to the first water supply space 6 and the second water supply space 7 respectively.
[0035] The water supply cylinder 51 has multiple water outlet holes 511 on its cylinder wall corresponding to the second water supply space 7, and each water outlet hole 511 is close to the top of the water supply cylinder 51. Figure 1 The upper part shown is provided, and each water outlet 511 is evenly and spaced along the circumference of the water supply cylinder 51. Water is supplied to the sorting cylinder 1 through each water outlet 511, and the direction of the water supply into the sorting cylinder 1 is radial, radiating outwards from the center. In specific implementations, each water outlet 511 can be an elongated hole, a round hole, or a slit, as long as it can deliver water. This embodiment does not impose any restrictions on the shape of the water outlet 511.
[0036] Each water distribution mechanism is located on the outer wall of the water supply cylinder 51 corresponding to the first water supply space 6. Furthermore, each water distribution mechanism is evenly and spaced along the circumference of the water supply cylinder 51. Each water distribution mechanism is used to rotate and transport water into the sorting cylinder 1.
[0037] Each water distribution mechanism may include a water distribution pipe 55. The first end of the water distribution pipe 55 is connected to the outer wall of the water supply cylinder 51 corresponding to the first water supply space 6, and the second end of the water distribution pipe 55 is connected to the inner wall of the sorting cylinder 1, thus the water distribution pipe 55 can support the water supply cylinder 51. Furthermore, the water distribution pipe 55 is connected to the first water supply space 6, and a water delivery hole 551 is provided on the side wall of the water distribution pipe 55. Specifically, the water supply cylinder 51 has a through hole corresponding to the water distribution pipe 55. Both ends of the water distribution pipe 55 are open. The first end of the water distribution pipe 55 is connected to the through hole of the water supply cylinder 51 and is connected to the first water supply space 6 through the through hole. The second end of the water distribution pipe 55 is connected to the inner wall of the sorting cylinder 1, thus sealing the second end of the water distribution pipe 55. The water flow in the first water supply space 6 is transported to the water distribution pipe 55 through the through hole, and then transported to the sorting cylinder 1 through the water delivery hole 551. The water delivery hole 551 can output the water flow tangentially along the circumference of the sorting cylinder 1, which facilitates the generation of rotating water flow in the sorting cylinder 1. This facilitates the water flow to cut through the magnetic agglomerates formed by magnetic particles in the magnetic field of the slurry, thereby dispersing the magnetic agglomerates, releasing the impurities wrapped inside the agglomerates, and improving the purity of the concentrate.
[0038] In a specific implementation, the pipe wall of the water distribution pipe 55 includes: a pipe wall facing the top of the sorting cylinder 1, a pipe wall facing the bottom of the sorting cylinder 1, and two side walls in the middle section. These two side walls are located on both sides, and each of the two side walls in the middle section has a water inlet 551. In a specific implementation, there can be at least one water inlet 551 on each side wall, and the number of water inlet 551 can be determined according to the actual situation. This embodiment does not impose any restrictions on this.
[0039] Preferably, each water distribution mechanism further includes a guide plate 56 and a baffle 57. The guide plate 56 is disposed on the side wall of the water distribution pipe 55 and is positioned below the water inlet 551. The guide plate 56 is horizontally positioned. The baffle 57 is vertically positioned at the end of the guide plate 56 near the inner wall of the sorting cylinder 1, meaning the baffle 57 is perpendicular to the guide plate 56 and positioned at the end of the guide plate 56 near the inner wall of the sorting cylinder 1, thus forming an L-shape with the guide plate 56. The guide plate 56 is vertically connected to the side wall of the middle section of the water distribution pipe 55 and is positioned directly below the water inlet 551. The guide plate 56 guides the direction of the water flow output from the water inlet 551 and prevents the water flow from the water inlet 551 from pointing downwards and directly flushing the slurry into the bottom of the sorting cylinder 1. Since the water flow direction in the water distribution pipe 55 is originally radial along the sorting cylinder 1, when the water is sprayed out from the water inlet 551, there will be a radial component in the flow velocity. The baffle 57 can block the water flow in the radial direction and ensure that the water flow is sprayed out tangentially along the circumference.
[0040] In practical implementation, since the water distribution pipe 55 is arranged radially along the sorting cylinder 1, the water flow inside the water distribution pipe 55 is also radial. When the water flows out from the water inlet 551, it retains a certain radial component, causing the outflow direction to be not strictly tangential, but rather obliquely inclined radially. This results in impurity of the tangential water flow, affecting the control accuracy of rotation and upward intensity. Simultaneously, due to gravity, the water flows downward after exiting the water inlet 551, ultimately resulting in a downward-sloping water flow direction. To address this, a guide plate 56 and a baffle 57 are added at the water inlet 551. The baffle 57 blocks the radial flow, constraining it to tangential flow, while the guide plate 56 constrains the water flow velocity near the water inlet 551 to the horizontal direction, achieving a more precise tangential water flow at the water inlet 551 and making control more accurate.
[0041] In practice, the number of guide plates 56 is the same as the number of water inlets 551, and each guide plate 56 corresponds to each water inlet 551. The guide plates 56 are placed directly below the water inlets 551. Correspondingly, each guide plate 56 has a baffle 57 vertically installed at the end near the inner wall of the sorting cylinder 1.
[0042] As can be seen, in this embodiment, the first water supply space 6 outputs rotating water flow from the bottom of the water supply cylinder 51, which can effectively drive the slurry to move, ensuring the effective separation of impurities from the ore, and can also drive the impurities to move towards the overflow inner cylinder 42 for overflow discharge. The second water supply space 7 outputs supplementary water from the upper part of the water supply cylinder 51, which can compensate for the insufficient water supply at the bottom of the separation cylinder 1, resulting in insufficient upward movement force of impurities. It can also dilute the slurry when the slurry concentration is too high, thus improving the separation effect. Furthermore, the first water supply space 6 and the second water supply space 7 supply water at different heights within the separation cylinder 1. The lower part of the separation cylinder 1 uses tangential water flow to generate rotating water within the separation cylinder 1, while the upper part of the separation cylinder 1 outputs non-rotating supplementary water through the water outlet 511. In this way, the two water flows work together to adjust both the rotation speed and the rising water flow rate, achieving precise water control. The first water supply space 6 and the second water supply space 7 are independent spaces, which realize the independent adjustment of the rotating water flow and the rising water flow, and can be adjusted in different combinations according to different material properties.
[0043] See Figure 1 In the above embodiment, the water supply mechanism 54 includes a first water supply pipe 541 and a second water supply pipe 542. The first end of the first water supply pipe 541 is located outside the sorting cylinder 1, and the second end of the first water supply pipe 541 is connected to the first water supply space 6. Specifically, the first water supply pipe 541 is sequentially inserted through the bottom of the sorting cylinder 1 and the water supply cylinder 51, and the second end of the first water supply pipe 541 is located within the first water supply space 6.
[0044] The first end of the second water supply pipe 542 is located outside the sorting cylinder 1, and the second end of the second water supply pipe 542 is connected to the second water supply space 7. Specifically, the second water supply pipe 542 is sequentially installed through the bottom of the sorting cylinder 1, the water supply cylinder 51, and the partition 53, and the second end of the second water supply pipe 542 is located inside the second water supply space 7.
[0045] In a specific implementation, the water supply mechanism 54 may further include a water supply pipe 543. The water supply pipe 543 is horizontally inserted through the bottom of the sorting cylinder 1, with both ends of the water supply pipe 543 located outside the sorting cylinder 1, and the middle part of the water supply pipe 543 located inside the sorting cylinder 1. The water supply pipe 543 is horizontally divided into two parts, namely the first part and the second part. The first end of the first water supply pipe 541 is connected to the first part of the water supply pipe 543, and the first end of the second water supply pipe 542 is connected to the second part of the water supply pipe 543. In this way, the water flow is delivered to the first water supply pipe 541 through the first part of the water supply pipe 543, and then to the first water supply space 6; the water flow is delivered to the second water supply pipe 542 through the second part of the water supply pipe 543, and then to the second water supply space 7. Thus, the water flow in the first water supply space 6 and the water flow in the second water supply space 7 are independent of each other and do not affect each other.
[0046] As can be seen, in this embodiment, water is supplied to the first water supply space 6 through the first water supply pipe 541 and to the second water supply space 7 through the second water supply pipe 542, thus ensuring independent water supply to the first water supply space 6 and the second water supply space 7.
[0047] See Figures 1 to 2 In the above embodiments, the discharge device 4 includes an overflow outer cylinder 41 and an overflow inner cylinder 42. The top of the sorting cylinder 11 is open, and both ends of the overflow inner cylinder 42 are open. The bottom of the overflow inner cylinder 42 is conical, and the bottom of the overflow inner cylinder 42 is connected to the top of the sorting cylinder 1, with the interior of the overflow inner cylinder 42 communicating with the interior of the sorting cylinder 1. Preferably, the outer wall of the connection between the overflow inner cylinder 42 and the sorting cylinder 1 is provided with reinforcing ribs 12 to improve the connection strength between the overflow inner cylinder 42 and the sorting cylinder 1. More preferably, there are multiple reinforcing ribs 12, and each reinforcing rib 12 is evenly distributed along the circumferential direction.
[0048] The overflow outer cylinder 41 is sleeved outside the overflow inner cylinder 42, and there is a predetermined distance between the overflow outer cylinder 41 and the overflow inner cylinder 42. Specifically, the top end of the overflow outer cylinder 41 ( Figure 1 The upper part shown) and the top of the overflow inner cylinder 42 ( Figure 1 Corresponding to the upper part shown, there is a certain gap between the top of the overflow outer cylinder 41 and the top of the overflow inner cylinder 42, and there is also a certain gap between the inner wall of the overflow outer cylinder 41 and the outer wall of the overflow inner cylinder 42. Thus, the overflow outer cylinder 41 and the overflow inner cylinder 42 enclose an overflow space. The inner bottom wall of the overflow outer cylinder 41 extends from one side to the other... Figure 1As shown, the overflow cylinder 41 is inclined from left to right and has a preset slope. The position of the first side is higher than the position of the second side, and the position of the second side is lower. An overflow port 411 is provided on the side wall of the overflow outer cylinder 41 and corresponding to the lowest point of the inner bottom wall. That is, the overflow port 411 is provided on the side wall of the overflow outer cylinder 41 and corresponding to the second side. The overflow port 411 is used to discharge overflow impurities.
[0049] The washing magnetic separator may also include: a fixing mechanism and a positioning mechanism.
[0050] The feeding device 3 includes a feeding cylinder 31 and a conveying cylinder 32. Part or all of the feeding cylinder 31 is located outside the overflow outer cylinder 41, and the portion of the feeding cylinder 31 located outside the overflow outer cylinder 41 is connected to the overflow outer cylinder 41 by a fixing mechanism. The first end of the feeding cylinder 31 and the conveying cylinder 32 ( Figure 1 The upper end shown is connected to the sorting cylinder 1. The conveying cylinder 32 is placed inside the sorting cylinder 1. Specifically, since the sorting cylinder 1 is connected to the overflow inner cylinder 42, the conveying cylinder 32 is partially placed inside the overflow inner cylinder 42 and partially placed inside the sorting cylinder 1. Both ends of the conveying cylinder 32 are open ends. The conveying cylinder 32 is used to receive the slurry conveyed by the feeding cylinder 31 and then convey the slurry to the sorting cylinder 1.
[0051] Positioning mechanism 8 is located at the second end of conveyor cylinder 32. Figure 1 (As shown at the lower end), the positioning mechanism 8 is used to position the feed cylinder 32.
[0052] In specific implementation, a feed pipe 33 is provided on the side wall of the feed cylinder 31. Preferably, the feed pipe 33 is arranged tangentially along the feed cylinder 31, which allows the slurry to enter the feed cylinder 31 tangentially and rotate inside the feed cylinder 31. It also ensures that the slurry is output more evenly at the second end of the conveying cylinder 32, thus playing the role of uniform material distribution.
[0053] As can be seen, in this embodiment, the feeding cylinder 31 and the overflow outer cylinder 41 are connected and fixed relative to each other by the fixing mechanism to ensure that the feeding cylinder 31 is fixed after installation. In addition, the positioning structure positions the feeding cylinder 32 from the second end of the feeding cylinder 32 to prevent the feeding cylinder 32 from moving. This effectively prevents the feeding cylinder 31 from becoming unstable and eccentric due to vibration and slurry impact during the use of the washing magnetic separator, thus ensuring the stability and uniformity of the conveyed slurry.
[0054] See Figure 1 and Figure 2 In the above embodiments, the fixing mechanism may include: a mounting plate 9, multiple support plates 10, and multiple base plates 11. The top of the overflow outer cylinder 41 is open, and the mounting plate 9 is annular in shape. The mounting plate 9 is disposed on the top of the overflow outer cylinder 41; specifically, the outer wall of the mounting plate 9 is connected to the inner wall of the top of the overflow outer cylinder 41.
[0055] Each support plate 10 is disposed on the outer wall of the feed cylinder 31, which is located outside the overflow outer cylinder 41. Furthermore, each support plate 10 is evenly and spaced along the circumference of the feed cylinder 31 on its outer wall. Specifically, there are at least three support plates 10, each used to support the feed cylinder 31. Preferably, the support plates 10 are detachably connected to the feed cylinder 31; more preferably, they are bolted together. This allows the support plates 10 to be removed during transportation, saving space, reducing transportation costs, and facilitating installation. When installing the washing magnetic separator, the support plates 10 are simply reattached to the feed cylinder 31.
[0056] The number of base plates 11 is the same as the number of support plates 10, and each base plate 11 corresponds one-to-one with each support plate 10, with each base plate 11 located at the bottom of its corresponding support plate 10. Specifically, each support plate 10 is vertically arranged, and each base plate 11 is horizontally arranged, so the base plate 11 is perpendicular to the support plate 10.
[0057] Each base plate 11 is detachably connected to the mounting plate 9. Preferably, each base plate 11 has a connecting hole 111, and the mounting plate 9 has a plurality of mounting holes 91 spaced apart along the circumference. Preferably, the mounting holes 91 are evenly and spaced apart on the mounting plate 9. The connecting holes 111 and the mounting holes 91 are connected by bolts. Specifically, the number of mounting holes 91 may be greater than the number of connecting holes 111, so that the base plate 11 can select appropriate mounting holes 91 to correspond to and be connected by bolts.
[0058] Preferably, the connecting hole 111 is elongated, and its length direction is consistent with that of the base plate 11. Specifically, the base plate 11 extends outward from the side wall of the feed cylinder 31, and its length direction is perpendicular to the side wall of the feed cylinder 31. The elongated shape of the connecting hole 111 allows for fine-tuning of the position of the feed cylinder 31 when errors occur during processing or installation.
[0059] Preferably, the mounting hole 91 is arc-shaped, so that when the feed cylinder 31 rotates, it is easy to fix the connecting hole 111 to the mounting hole 91 in a suitable position by bolts.
[0060] Preferably, the connecting hole 111 is elongated, and the length direction of the connecting hole 111 is consistent with the length direction of the base plate 11; and / or, the mounting hole 91 is arc-shaped.
[0061] As can be seen, in this embodiment, the fixing mechanism has a simple structure and is easy to implement.
[0062] See Figure 1 , Figure 4 and Figure 5In the above embodiment, the positioning mechanism 8 includes a guide cone 81 and multiple connecting members 82. The guide cone 81 is disposed at the second end of the conveying cylinder 32 via the connecting members 82. Specifically, the first end of each connecting member 82 is connected to the outer wall of the guide cone 81, and the second end of each connecting member 82 is connected to the second end of the conveying cylinder 32. More specifically, the second end of each connecting member 82 is connected to the inner wall of the second end of the conveying cylinder 32, thus placing each connecting member 82 inside the second end of the conveying cylinder 32. The connecting members 82 are spaced apart circumferentially along the guide cone 81, preferably evenly distributed. In this way, the slurry in the conveying cylinder 32 can flow out through the gap between two connecting members 82. During the outflow of the slurry, the slurry can flow along the outer wall of the guide cone 81, allowing the guide cone 81 to guide the flow of the slurry. Simultaneously, the inclined conical slope can prevent slurry accumulation.
[0063] The tip of the guide cone 81 ( Figure 1 The upper end shown is a closed end facing the inside of the feed cylinder 32, and the straight end of the guide cone 81 (shown) Figure 1 The lower end shown is also a closed end, and a positioning hole 811 is provided at the straight end of the guide cone 81. The top of the water supply cylinder 51 is conical, and the top of the water supply cylinder 51 is inserted into the positioning hole 811. Specifically, the positioning hole 811 can be a circular hole, and the diameter of the positioning hole 811 should ensure that part of the water supply cylinder 51 is placed inside the conical cylinder. In this embodiment, there is no limitation on the value of the diameter of the positioning hole 811.
[0064] As can be seen, in this embodiment, the guide cone 81 is connected to the second end of the feed cylinder 32 through multiple spaced connectors 82. This not only fixes the guide cone 81, but also ensures that the slurry is delivered to the sorting cylinder 1 through the gap between two adjacent connectors 82. Simultaneously, the guide cone 81 guides the slurry flow, allowing it to flow downwards along the conical slope. The shape of the guide cone 81 also prevents slurry accumulation, avoiding accumulation at the top of the guide cone 81. The top of the water supply cylinder 51 is inserted into the positioning hole 811 at the straight end of the guide cone 81, thus fixing the water supply cylinder 51 relative to the guide cone 81, and consequently, fixing the water supply cylinder 51 relative to the feed cylinder 32. This positions the feed cylinder 32, preventing shaking, tilting, or displacement of the feed cylinder 32 and the feed cylinder 31.
[0065] In summary, in this embodiment, the first water supply space 6 and the second water supply space 7 of the water supply device 5 are two independent spaces. The first water supply space 6 is close to the bottom of the sorting cylinder 1 and allows the water flow to rotate inside the sorting cylinder 1. The rotating water flow can drive the slurry to move, ensuring that impurities are effectively separated from the ore. The second water supply space 7 is located above the first water supply space 6 and provides supplemental water to the sorting cylinder 1, which can make up for the insufficient water supply at the bottom of the sorting cylinder 1, so that there is sufficient rising water flow at the top of the sorting cylinder, improving the sorting efficiency and effect. The water supply device 5 can achieve uniform water supply and water supply at different positions inside the sorting cylinder 1, improve the sorting effect of the water flow, effectively play the role of water supply, and thus improve the sorting accuracy and sorting effect. This washing magnetic separator has high working stability, simple operation, and is easy to implement, and can achieve high efficiency and large scale.
[0066] It should be noted that in the description of this invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate the direction or positional relationship, are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and is not intended to indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this invention.
[0067] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0068] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.
Claims
1. A washing magnetic separator, characterized in that, include: The system comprises a sorting cylinder (1), a separation device (2), a feeding device (3), a discharge device (4), and a water supply device (5); among which, The feeding device (3) is disposed on the sorting cylinder (1) and is used to feed slurry into the sorting cylinder (1); The separation device (2) is installed in the sorting cylinder (1) and is used to separate the ore and impurities in the slurry; The water supply device (5) is disposed on the sorting cylinder (1). The water supply device (5) has a first water supply space (6) and a second water supply space (7). The first water supply space (6) is close to the bottom of the sorting cylinder (1) and is used to inject water into the sorting cylinder (1) and make the water flow rotate. The second water supply space (7) is used to provide replenishment water into the sorting cylinder (1). The discharge device (4) is located at the top of the sorting cylinder (1) and is connected to the interior of the sorting cylinder (1) to discharge impurities that overflow to the top of the sorting cylinder (1); The bottom of the sorting cylinder (1) is provided with a discharge port; The water supply device (5) includes: a water supply cylinder (51), a support (52), a partition (53), a water supply mechanism (54), and multiple water distribution mechanisms; wherein, The water supply cylinder (51) is installed inside the sorting cylinder (1) via the bracket (52); The partition (53) is horizontally arranged inside the water supply cylinder (51) to divide the interior of the water supply cylinder (51) into the first water supply space (6) and the second water supply space (7). The water supply mechanism (54) is connected to both the first water supply space (6) and the second water supply space (7); The water supply cylinder (51) has multiple water outlet holes (511) on its cylinder wall corresponding to the second water supply space (7) to provide replenished water to the sorting cylinder (1). The replenished water is dispersed from the center of the sorting cylinder (1) to the surrounding area. Each of the water-dividing mechanisms is spaced apart on the outer wall of the water supply cylinder (51) corresponding to the first water supply space (6), and each of the water-dividing mechanisms is used to rotate and transport water into the sorting cylinder (1); Each of the water distribution mechanisms includes: a water distribution pipe (55); wherein, the first end of the water distribution pipe (55) is connected to the outer wall of the water supply cylinder (51) corresponding to the first water supply space (6), the second end of the water distribution pipe (55) is connected to the inner wall of the sorting cylinder (1), and the water distribution pipe (55) is connected to the first water supply space (6). A water delivery hole (551) is provided on the side wall of the water distribution pipe (55). The water delivery hole (551) is used to output water along the circumference of the sorting cylinder (1) tangentially to generate a rotating water flow in the sorting cylinder (1). The water flow is used to cut the magnetic agglomerates formed by the magnetic particles formed by the slurry in the magnetic field to disperse the magnetic agglomerates and release the impurities wrapped inside the agglomerates so as to separate the impurities from the ore. Each of the water distribution mechanisms further includes: a guide plate (56) and a baffle (57); wherein, the guide plate (56) is disposed on the side wall of the water distribution pipe (55) and positioned below the water inlet (551), the guide plate (56) is horizontally disposed, and the baffle (57) is vertically disposed at the end of the guide plate (56) near the inner wall of the sorting cylinder (1); the guide plate (56) is used to guide the direction of the water flow output from the water inlet (551) and prevent the water flow from the water inlet (551) from flowing downward and thus directly flushing the slurry into the bottom of the sorting cylinder (1); the baffle (57) is used to block the water flow from flowing radially and ensure that the water flow is sprayed out tangentially around the circumference.
2. The washing magnetic separator according to claim 1, characterized in that, The water supply mechanism (54) includes: a first water supply pipe (541) and a second water supply pipe (542); wherein, The first end of the first water supply pipe (541) is placed outside the sorting cylinder (1), and the second end of the first water supply pipe (541) is connected to the first water supply space (6); The first end of the second water supply pipe (542) is placed outside the sorting cylinder (1), and the second end of the second water supply pipe (542) is connected to the second water supply space (7).
3. The washing magnetic separator according to claim 1, characterized in that, Also includes: Fixed mechanism and positioning mechanism (8); among which, The discharge device (4) includes: an overflow outer cylinder (41) and an overflow inner cylinder (42); the overflow inner cylinder (42) is connected to the top of the sorting cylinder (1), and the interior of the overflow inner cylinder (42) is connected to the interior of the sorting cylinder (1), and the overflow outer cylinder (41) is sleeved on the outside of the overflow inner cylinder (42); The feeding device (3) includes: a feeding cylinder (31) and a conveying cylinder (32) placed inside the sorting cylinder (1) and open at both ends; part or all of the feeding cylinder (31) is placed outside the overflow outer cylinder (41) and connected to the overflow outer cylinder (41) through the fixing mechanism; the feeding cylinder (31) is connected to the first end of the conveying cylinder (32); The positioning mechanism (8) is located at the second end of the feed cylinder (32) to position the feed cylinder (32).
4. The washing magnetic separator according to claim 3, characterized in that, The fixing mechanism includes: an annular mounting plate (9), multiple support plates (10), and multiple base plates (11); wherein, The top of the overflow outer cylinder (41) is open, and the mounting plate (9) is disposed on the top of the overflow outer cylinder (41); Each of the support plates (10) is spaced apart on the outer wall of the feed cylinder (31) outside the overflow outer cylinder (41), and each of the bottom plates (11) is correspondingly disposed at the bottom of each of the support plates (10); Each of the base plates (11) is detachably connected to the mounting plate (9).
5. The washing magnetic separator according to claim 4, characterized in that, Each of the base plates (11) is provided with a connection hole (111), and the mounting plate (9) is provided with a plurality of mounting holes (91) spaced apart along the circumferential direction. The connecting hole (111) and the mounting hole (91) are connected by bolts.
6. The washing magnetic separator according to claim 5, characterized in that, The connecting hole (111) is elongated, and the length direction of the connecting hole (111) is consistent with the length direction of the base plate (11); and / or, the mounting hole (91) is arc-shaped.
7. The washing magnetic separator according to claim 3, characterized in that, The positioning mechanism (8) includes: a guide cone (81) and multiple connecting parts (82); wherein, The flow guide cone (81) is disposed at the second end of the feed cylinder (32) through each of the connecting parts (82), and each of the connecting parts (82) is arranged circumferentially at intervals along the flow guide cone (81). The cone tip of the flow guide cone (81) faces the interior of the feed cylinder (32). The straight end of the flow guide cone (81) is a closed end and is provided with a positioning hole. The flow guide cone (81) is used to guide the flow of slurry. The top of the water supply cylinder (51) is conical and inserted into the positioning hole.