Adjustable magnetic field magnetic separator

Abstract

The present application relates to the technical field of mine equipment, and more particularly to an adjustable magnetic field magnetic separator. The adjustable magnetic field magnetic separator comprises a drum device, which can realize adjustment of the shape and strength of the magnetic field. The drum device comprises a magnetic system module and a magnetic field radial adjustment assembly. The magnetic field radial adjustment assembly drives the magnetic system module to move along the radial direction of the drum to adjust the shape and strength of the magnetic field. The adjustable magnetic field magnetic separator further comprises a magnetic field display device, which displays the magnetic field parameters in real time based on the current position of the magnetic system. The adjustable magnetic field magnetic separator further comprises a forward and reverse flow double-acting tank body, which can realize forward and reverse flow operation by adjusting the characteristics of the magnetic field. The adjustable magnetic field magnetic separator further comprises a sorting space real-time display.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mine equipment, in particular to an adjustable magnetic field magnetic separator. BACKGROUND

[0002] The permanent magnetic drum type magnetic separator is suitable for enterprises, institutions and individual users in the fields of metallurgical mining, ore dressing, ore dressing plants, etc., and is used for selecting fine particle magnetic minerals or removing mixed magnetic minerals in non-magnetic minerals. The permanent magnetic drum type magnetic separator is a wet type magnetic separator with high field strength. It adopts high-magnetic rare earth neodymium-iron-boron blocks and ferrite blocks to form a composite magnetic system, which has high magnetic field strength. The permanent magnetic drum type magnetic separator has the characteristics of large magnetic field action depth and difficulty in demagnetization. Therefore, the equipment has large processing capacity, strong adaptability to production fluctuations and good separation effect.

[0003] The working principle of the permanent magnetic drum type magnetic separator is that the ore pulp flows into the tank body through the ore feeding box, and under the action of the water flow of the ore feeding water pipe, the ore particles enter the ore feeding area of the tank body in a loose state. Under the action of the magnetic field, the magnetic particles form "magnetic groups" or "magnetic chains" through magnetic aggregation. The "magnetic groups" or "magnetic chains" are subjected to magnetic force in the ore pulp and move towards the magnetic pole, and are finally discharged under the action of the water of the ore discharging water pipe.

[0004] When the properties of the material change or different materials are fed, the applicability of the magnetic separator will be greatly affected, and the best separation effect cannot be obtained. In addition, in the ore dressing experiment, each mineral has different particle size, associated components and magnetization coefficients, and the magnetic field needs to be adjustable in the separation experiment.

[0005] Some magnetic separators with adjustable magnetic field are used in the prior art, for example:

[0006] Patent CN202061704U discloses a magnetic field adjustable water washing magnetic separator, which is composed of a base, a magnet, a supporting wheel, a feeding pipe, a rotating drum, a transmission gear, a water spraying pipe, a discharging chute, an adjusting bolt and a receiving chute. The magnetic field is adjusted by hand-tightening the adjusting bolt. Patent CN201505573U discloses a magnetic field adjustable drum type strong magnetic magnetic separator which is adjusted by a bolt and a nut.

[0007] Patent CN210121527U discloses a permanent magnetic field adjustable magnetic separator, which is composed of a magnetic system, a lifting device, a lifting device shaft, a steering handle and a steering device hollow shaft. The entire magnetic field adjustment can be completed at one time.

[0008] Patent CN201978813U discloses a magnetic field adjustable magnetic separation drum, which adopts a magnetic system support frame and an adjusting bolt, and uses a spring to reset.

[0009] Patent CN116328941B discloses a magnetic field instant adjustment system and adjustment method based on production process monitoring. According to the sampling detection coefficient data, the production process can be monitored and adjusted in time. The magnetic field assembly has a main shaft and n permanent magnets. The adjustment assembly has n adjustment modules. The adjustment module has a variable component and a connecting piece. The n permanent magnets are connected to the n adjustment modules one by one through the n connecting pieces.

[0010] Patent US2013 / 0240413 discloses an adjustable magnetic field magnetic separator. The device adjusts the position of the magnet by using a connecting rod type mechanical device.

[0011] Patent US8196751B2 of Eriez Company discloses an adjustable magnetic field permanent magnet magnetic separator. A more complex segmented connecting rod device is used to adjust the position of multiple magnetic poles. Magnets at different distances will generate different magnetic field strengths outside the cylinder.

[0012] The problem is that although the magnetic separator in the related art can adjust the magnetic field, users usually adjust the magnetic field repeatedly according to experience, which is inconvenient for adjusting the magnetic field for different ore samples to achieve corresponding separation. SUMMARY

[0013] The purpose of the present application is to provide an adjustable magnetic field magnetic separator to solve the technical problem that users usually adjust the magnetic field repeatedly according to experience, which is inconvenient for adjusting the magnetic field for different ore samples to achieve corresponding separation.

[0014] The present application provides an adjustable magnetic field magnetic separator, which comprises a drum device capable of adjusting the magnetic field strength; the drum device comprises a drum, a magnetic system module and a magnetic field radial adjustment assembly; the magnetic system module is arranged in the drum; the magnetic field radial adjustment assembly is connected with the magnetic system module to drive the magnetic system module to rise and fall along the radial direction of the drum, thereby adjusting the magnetic field strength; the adjustable magnetic field magnetic separator further comprises a magnetic field display device, which comprises a follower outside the drum and a display module; the follower is connected with the magnetic field radial adjustment assembly to follow the movement of the magnetic field radial adjustment assembly, so that the position of the follower has a matching relationship with the position of the magnetic system module; the display module comprises magnetic field data matched with different positions of the follower, and the magnetic field data comprises magnetic field strength; the display module can show the current magnetic field data corresponding to the current position of the follower.

[0015] Further, the magnetic field radial adjustment assembly comprises an adjustment shaft, a part of the adjustment shaft is located in the roller and another part is located outside the roller; a radial adjustment member is connected with the magnetic system module; a conversion structure is capable of converting the rotation of the adjustment shaft into the linear motion of the radial adjustment member along the radial direction of the roller; the follower is arranged on the part of the adjustment shaft located outside the roller to follow the movement of the adjustment shaft.

[0016] Further, the magnetic field radial adjustment assembly further comprises a connecting member arranged in the roller and capable of being fixed relative to the adjustment shaft, and the connecting member is provided with a sliding hole; the radial adjustment member is a magnetic pole slider and is arranged in the sliding hole in a sliding manner; the conversion structure comprises a track disc, a helical groove arranged on the track disc, and a sliding gear arranged on the magnetic pole slider; the track disc is fixedly connected with the adjustment shaft; the sliding gear is capable of moving along the helical groove.

[0017] Further, the roller device is capable of adjusting the shape of the magnetic field; the magnetic system module comprises a plurality of magnetic pole units arranged in sequence along the circumferential direction of the roller, each of the magnetic pole units comprises a plurality of magnetic pole modules arranged in sequence along the axial direction of the roller; the number of the radial adjustment members is plural, and a plurality of the magnetic pole units and a plurality of the radial adjustment members are in one-to-one detachable connection; the shape of the magnetic field is adjusted by connecting different magnetic pole units through the radial adjustment members.

[0018] Further, the follower comprises a rotating block fixed on the part of the adjustment shaft located outside the roller; or the follower comprises a sliding block arranged on the part of the adjustment shaft located outside the roller in a threaded connection manner; the magnetic field display device further comprises a mounting seat fixedly arranged, the mounting seat is provided with a sliding limiting structure, and the sliding block is capable of sliding along the axial direction of the adjustment shaft under the limitation of the sliding limiting structure.

[0019] Further, the display module comprises a pointer and a magnetic field data nameplate; the magnetic field data is marked on the magnetic field data nameplate; the pointer is fixedly connected with the follower, and the pointer is capable of moving to point to the current magnetic field data on the magnetic field data nameplate corresponding to the current position of the follower.

[0020] Further, the display module comprises a position measuring element for measuring the current position of the follower; a data processor, the position measuring element is in communication connection with the data processor, and the magnetic field data is stored in the data processor; a display, the data processor is capable of transmitting the current magnetic field data to the display after processing the position information data of the follower; the display comprises a display screen, and the display screen is capable of displaying the current magnetic field data.

[0021] Further, the magnetic field data further comprises a magnetic field shape, a plurality of magnetic force parameters of each of the plurality of magnetic pole units, and a plurality of magnetic force parameter curves; and the display screen comprises a plurality of display areas capable of displaying at least the magnetic field strength, the magnetic field shape, the plurality of magnetic force parameters of each of the plurality of magnetic pole units, and the plurality of magnetic force parameter curves of each of the plurality of magnetic pole units, respectively.

[0022] Further, the adjustable magnetic field magnetic separator further comprises a sorting space adjusting device connected with the drum device, and an immersion depth displacement sensor capable of detecting the displacement of the bottom of the drum and transmitting the displacement to the data processor, so that the data processor obtains the position information of the bottom of the drum according to the displacement and transmits the position information to the display.

[0023] Further, the drum device further comprises a magnetic bias angle adjusting assembly comprising a connecting shaft connected with the magnetic system module, a part of the connecting shaft being located outside the drum and a part of the connecting shaft being located inside the drum, a connecting hole extending along the axial direction of the connecting shaft being arranged on the connecting shaft, and at least part of the adjusting shaft being arranged in the connecting shaft; a slot body; a position display plate connected with the part of the connecting shaft located outside the drum; the position display plate is used for displaying the bottom contour of the drum, the position of the magnetic system module, and the size and position of the sorting space formed by the current position of the drum and the bottom of the slot body; the position display plate rotates with the connecting shaft, so as to display the magnetic bias angle information and the magnetic wrap angle information.

[0024] Further, the adjustable magnetic field magnetic separator comprises a slot body, the slot body is a forward and reverse flow double-acting slot body having a forward and reverse flow double-acting sorting function; the magnetic pole slider is connected with different magnetic pole units, a plurality of the magnetic pole units are symmetrically arranged about the center line to form the magnetic system module, and the slot body having the forward and reverse flow double-acting sorting function, so that the forward and reverse flow double-acting operation is realized by adjusting the magnetic bias angle of the magnetic system module.

[0025] The adjustable magnetic field magnetic separator provided by the present application has at least the following beneficial effects:

[0026] 1. The present application realizes the visual adjustment function of the magnetic field strength, facilitates the use of users, and facilitates the adjustment of the magnetic field for different ore samples to realize corresponding sorting.

[0027] 2. The adjustable magnetic field magnetic separator provided by the present application can connect different magnetic pole units through the magnetic pole slider and drive the magnetic system module to ascend and descend along the radial direction of the drum to adjust the magnetic field shape and the magnetic field strength. In addition, the magnetic field radial adjusting assembly of the adjustable magnetic field magnetic separator is simple and compact in structure, can realize simple operation and low cost, and can also make the structure of the adjustable magnetic field magnetic separator compact and occupy less space.

[0028] 3. The present invention realizes the visual adjustment function of the magnetic field shape and magnetic field strength of the magnetic separator.

[0029] 4. The magnetic separator of the present invention has a wide range of adjustable magnetic induction intensity. By replacing different magnetic pole modules and adjusting the magnetic field, it can achieve a range of up to 300 to 8000Gs. The spatial magnetic force distribution parameters of the four groups of magnetic poles can also be adjusted, and the adjustment process is bidirectionally visible throughout, which can ensure the convenience of operation during the adjustment process. Under the same magnetic pole module, the magnetic field parameter adjustment can be completed by relying on only one rotating shaft structure.

[0030] 5. The magnetic separator of the present invention has the function of visually adjusting the spatial position relationship of magnetic separation throughout the entire process, and can cope with separation experiments of different ore samples.

[0031] 6. The present invention can realize dual-action mineral separation of downstream and countercurrent, and the overall shape and internal mechanical device are simple. It only needs to adjust the magnetic declination to realize the switching of dual-action mineral separation of downstream and countercurrent. Combined with the magnetic field shape, magnetic field intensity adjustment and separation space adjustment, it basically completes the full coverage of magnetic separation samples.

[0032] 7. The present invention adopts an intuitive monitoring and display method of the magnetic field coefficient and the sorting gap, realizing the key numerical calibration of the experimental magnetic separator parameters. Its selection data can provide certain guidance for the design of magnetic separator parameters for various mineral samples.

[0033] It should be understood that both the foregoing general description and the following detailed description are for purposes of illustration and description and are not necessarily limiting of the present disclosure. The accompanying drawings, which are incorporated into and constitute a part of the specification, illustrate the subject matter of the present disclosure. Together, the description and the drawings serve to explain the principles of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0035] Figure 1 A schematic structural diagram of an adjustable magnetic field magnetic separator according to an embodiment of the present invention;

[0036] Figure 2 for Figure 1 The structural diagram of the drum device in the adjustable magnetic field magnetic separator shown;

[0037] Figure 3 for Figure 1 The schematic diagram of the structure of the magnetic field radial adjustment component in the adjustable magnetic field magnetic separator shown;

[0038] Figure 4 for Figure 3 A schematic diagram of the partial structure of the magnetic field radial adjustment component shown;

[0039] Figure 5 1 is a structural schematic diagram of a display module in the adjustable magnetic field magnetic separator;

[0040] Figure 6 1 is a structural schematic diagram of another display module in the adjustable magnetic field magnetic separator;

[0041] Figure 7 1 is a schematic structural diagram of the end view of the adjustable magnetic field magnetic separator;

[0042] Figure 8 Schematic diagram of the structure of the adjustable magnetic field magnetic separator shown in 1 used clockwise;

[0043] Figure 9 Schematic diagram of the structure of the adjustable magnetic field magnetic separator shown in 1 used counterclockwise;

[0044] Figure 10 This is a curve of magnetic induction intensity B generated at the surface of the roller in the adjustable magnetic separation space of the magnetic system module according to an embodiment of the present invention;

[0045] Figure 11 The magnetic system module of the embodiment of the present invention is in the selected area Gradient value change curve;

[0046] Figure 12 The magnetic system module of the embodiment of the present invention is in the selected area Variation curve of adsorption force parameter values.

[0047] Icon: 1-roller support frame; 2-roller device; 21-roller; 22-magnetic system module; 211-cylinder body; 212-cylinder body flange; 221-pole unit; 23-magnetic field radial adjustment assembly; 231-adjusting shaft; 232-track disc; 233-spiral groove; 234-pole slider; 235-hand wheel; 236-locking piece; 237-first housing; 238-second housing; 24-magnetic deflection angle adjustment assembly; 241-connecting shaft; 242-driving rod; 243-fixing frame; 244-positioning piece; 5-frame; 6-roller horizontal adjustment device; 7-sorting space adjustment device; 8-groove body; 81-overflow height adjustment piece; 82-magnetic mineral outlet; 9-magnetic field display device; 91-mounting seat; 92-limiting structure; 93-slider; 94-position measuring element; 95-data processor; 96-display screen; 97-magnetic field data nameplate; 10-position display plate; 20-reduction motor; 30-transmission shaft; 40-transmission bearing seat; 50-cylinder body rotation bearing seat; 60-adjusting bearing seat; 70-mineral unloading assembly; 80-immersion depth displacement sensor. DETAILED DESCRIPTION

[0048] The technical solutions of the present application will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application.

[0049] The components of the embodiments of the present application generally described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the present application.

[0050] Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0051] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0052] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "linking" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal connection of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0053] In addition, the terms "horizontal", "vertical", "suspension" and other terms do not mean that the components must be absolutely horizontal or suspended, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0054] As shown in Figures 1 to 10 The present application provides a magnetic field adjustable magnetic separator (which can refer to a wet magnetic separator with a permanent magnet cylinder type magnetic separator with adjustable magnetic field shape and strength), which comprises a drum device 2 capable of adjusting the magnetic field strength; the drum device 2 comprises a drum 21, a magnetic system module 22 and a magnetic field radial adjustment assembly 23; the magnetic system module 22 is arranged in the drum 21; the magnetic field radial adjustment assembly 23 is connected with the magnetic system module 22 to drive the magnetic system module 22 to rise and fall along the radial direction of the drum 21, so as to adjust the magnetic field strength; the adjustable magnetic field magnetic separator further comprises a magnetic field display device 9, which comprises a follower and a display module outside the drum 21; the follower is connected with the magnetic field radial adjustment assembly 23 to follow the movement of the magnetic field radial adjustment assembly 23, so that the position of the follower has a matching relationship with the position of the magnetic system module 22; the display module comprises magnetic field data matched with different positions of the follower, and the magnetic field data comprises magnetic field strength; the display module can display the current magnetic field data corresponding to the current position of the follower.

[0055] In the embodiment, the magnetic system module 22 is lifted along the radial direction of the roller 21 by the magnetic field radial adjustment assembly 23, so as to adjust the distance between the magnetic system module 22 and the inner wall of the roller 21, and then adjust the magnetic field strength. In the process, the movement amount of the magnetic field radial adjustment assembly 23 determines the moving distance of the magnetic system module 22. The movement amount of the magnetic field radial adjustment assembly 23 has a corresponding relationship with the moving distance of the magnetic system module 22. When the magnetic field radial adjustment assembly 23 moves to an adjustment position, the magnetic system module 22 moves to a module position correspondingly. When the magnetic field radial adjustment assembly 23 moves to another adjustment position, the magnetic system module 22 moves to another module position correspondingly. That is, the position of the magnetic field radial adjustment assembly 23 has a matching relationship with the position of the magnetic system module 22. Meanwhile, the magnetic field radial adjustment assembly 23 drives the follower to move. The movement amount of the magnetic field radial adjustment assembly 23 determines the movement amount of the follower, so that the movement amount of the magnetic field radial adjustment assembly 23 has a corresponding relationship with the movement amount of the follower. When the magnetic field radial adjustment assembly 23 moves to an adjustment position, the follower moves to a follower position correspondingly. When the magnetic field radial adjustment assembly 23 moves to another adjustment position, the follower moves to another follower position correspondingly. That is, the position of the magnetic field radial adjustment assembly 23 has a matching relationship with the position of the follower. Therefore, the position of the follower has a matching relationship with the position of the magnetic system module 22. The follower at a follower position corresponds to the magnetic system module 22 at a module position.

[0056] The position of the magnetic system module 22 relative to the roller 21 is different, and the magnetic field strength and other magnetic field data of the magnetic field formed by the magnetic system module 22 are different. A module position corresponds to a magnetic field data. Therefore, a follower position of the follower corresponds to a magnetic field data. Different follower positions of the follower correspond to different magnetic field data. The display module can display the corresponding current magnetic field data according to the current position of the follower. The magnetic field data includes the magnetic field strength, so the display module can at least display the current magnetic field strength. In the process of selecting the corresponding magnetic field strength according to the specific sorting material, the user can intuitively understand whether the adjustment is in place by the current magnetic field strength displayed by the display module in the process of adjusting the magnetic system module 22 by the magnetic field radial adjustment assembly 23. Until the display module displays the required magnetic field strength, the user can stop adjusting the position of the magnetic system module 22, and the magnetic field strength adjustment process can be visualized.

[0057] The magnetic field strength adjustment process of the adjustable magnetic field magnetic separator provided by the embodiment can be visual, so that the user can intuitively understand the adjustment process of the magnetic field strength, and can quickly, conveniently and accurately adjust the magnetic field strength to meet the required magnetic field strength of the material, facilitating user use. In addition, the adjustable magnetic field magnetic separator provided by the embodiment converts complex magnetic field parameters into position changes of a simple follower, and the corresponding magnetic field data can be obtained only through the position changes (which can be understood as displacement of the follower, which can be angular displacement or linear displacement) of the follower, avoiding real-time detection by using a magnetic sensor and avoiding the use of high-cost components, thereby reducing production and maintenance costs. In addition, the follower is located outside the drum 21, facilitating assembly, and the user can also understand the movement of the magnetic field radial adjustment assembly 23 according to the movement of the follower, which is more conducive to the user to master the magnetic field strength adjustment.

[0058] It should be noted that the correspondence between the position of the magnetic system module 22 and the magnetic field data can be obtained by experiments, simulations, calculations and the like. Specifically, the correspondence between the position of the magnetic system module 22 and the magnetic field coefficient can be obtained by experiments, simulations, calculations and the like, and the magnetic field coefficient includes the magnetic field strength B and the magnetic field gradient The adsorption force factor can be obtained by comprehensive calculation of the magnetic field strength and the magnetic field gradient The ore adsorption force can be obtained according to the adsorption force factor.

[0059] The adsorption strength depends on the weight of the ore, that is, the particle size, the specific gravity of the ore, and the relative magnetic permeability. At the same time, the adsorption force needs to overcome the gravity and centripetal force. Since the diameter of the drum 21 is fixed, the magnetic field needs to be adjusted to function in the face of different properties of the ore. Therefore, according to the magnetic separation theory, the magnetic separator needs to give the magnetic induction strength B and the adsorption force factor The numerical value can facilitate the operator to adjust and control the corresponding parameters of the magnetic separator, and the explicit experimental magnetic field parameters can provide a theoretical basis for the selection of the magnetic separator of the subsequent production equipment.

[0060] The calibration can be combined with the magnetic circuit design and data analysis modules. By assigning specific parameters and materials of the magnetic circuit unit under certain conditions, the detailed magnetic field parameter data under the condition can be calculated by using software, and a series of data groups of the key path changes and adsorption force changes of the adjustable magnetic field can be obtained. The series of data groups have a matching relationship with the movement amount of the follower, so that the detailed magnetic field data can be obtained through the position changes of the follower.

[0061] Of course, other required magnetic field related data can also be obtained, which will not be described here.

[0062] Specifically, as shown in Figure 1 The adjustable magnetic field magnetic separator further includes a drum support frame 1, and the drum 21 is rotationally arranged on the drum support frame 1.

[0063] The magnetic field radial adjusting assembly 23 can adopt conventional means, for example, the magnetic field radial adjusting assembly 23 comprises a fixed shaft, an adjusting plate, an adjusting sliding block 93 and an electric telescopic rod. The fixed shaft is connected with the roller support frame 1 through the roller 21 to avoid affecting the rotation of the roller 21. The adjusting plate is fixed on the fixed shaft. The adjusting sliding block 93 is arranged on the adjusting plate in the radial direction of the roller 21. The electric telescopic rod is fixed on the adjusting plate and is fixedly connected with the adjusting sliding block 93 to drive the adjusting sliding block 93 to move, thereby driving the magnetic system module 22 to move.

[0064] As an alternative, the magnetic field radial adjusting assembly 23 comprises an adjusting shaft 231. One part of the adjusting shaft 231 is located in the roller 21, and the other part is located outside the roller 21. A radial adjusting member is connected with the magnetic system module 22. A conversion structure can convert the rotation of the adjusting shaft 231 into the linear motion of the radial adjusting member in the radial direction of the roller 21. A follower is arranged on the part of the adjusting shaft 231 located outside the roller 21 to follow the movement of the adjusting shaft 231.

[0065] In this embodiment, the driving adjusting shaft 231 rotates, the conversion structure converts the rotation of the adjusting shaft 231 into the linear motion of the radial adjusting member in the radial direction of the roller 21, and the radial adjusting member drives the magnetic system module 22 to rise and fall in the radial direction of the roller 21. The magnetic field radial adjusting assembly 23 of this structure occupies less space.

[0066] The conversion structure can have various forms, for example, the conversion structure comprises a gear, a rack and a connecting rod. The gear is coaxially fixed on the adjusting shaft 231. The rack is engaged with the gear. One end of the connecting rod is hinged with the rack, and the other end is hinged with the radial adjusting member. At this time, the radial adjusting member can be a sliding block 93, a sliding rod or the like.

[0067] As an alternative, as shown in Figures 2 to 4 The magnetic field radial adjusting assembly 23 further comprises a connecting member arranged in the roller 21, and the connecting member is fixed with the adjusting shaft 231. The connecting member is provided with a sliding hole. The radial adjusting member is a magnetic pole sliding block 234 arranged in the sliding hole. The conversion structure comprises a track disc 232, a spiral groove 233 arranged on the track disc 232 and a sliding tooth arranged on the magnetic pole sliding block 234. The track disc 232 is fixedly connected with the adjusting shaft 231. The sliding tooth can move along the spiral groove 233.

[0068] In the embodiment, the driving adjusting shaft 231 is rotated, the connecting piece remains stationary during the rotation of the adjusting shaft 231, the magnetic pole slider 234 and the track disc 232 are constrained in the circumferential direction, the adjusting shaft 231 drives the track disc 232 to rotate, the spiral groove 233 rotates accordingly, the magnetic pole slider 234 moves relative to the spiral groove 233, the magnetic pole slider 234 can move in the radial direction of the drum 21 to the direction close to or away from the drum 21, so as to drive the magnetic system module 22 to move to the direction close to or away from the drum 21, in this way, the distance between the side of the magnetic system module 22 away from the adjusting shaft 231 and the inner wall of the part of the drum 21 corresponding to the magnetic system module 22 is adjusted, the outer wall of the part of the drum 21 corresponding to the magnetic system module 22 forms a sorting area, that is, the distance between the magnetic system module 22 and the sorting area is adjusted, so as to adjust the magnetic field strength of the sorting area, and the whole adjusting process is simple to operate. The magnetic field radial adjusting assembly 23 of the adjustable magnetic field magnetic separator has a simple and compact structure, and the adjustment of the magnetic field shape and the magnetic field strength can be realized by using a simple mechanical structure, so that the operation is simple, the equipment cost is low, and the structure of the adjustable magnetic field magnetic separator is compact and occupies less space.

[0069] As shown in Figures 2 to 4 the above embodiment, further, the drum device 2 can adjust the magnetic field shape; the magnetic system module 22 includes a plurality of magnetic pole units 221 arranged in sequence along the circumference of the drum 21, each magnetic pole unit 221 includes a plurality of magnetic pole modules arranged in sequence along the axis of the drum 21; the number of radial adjusting pieces is multiple, and the plurality of magnetic pole units 221 and the plurality of radial adjusting pieces are one-to-one detachably connected; different magnetic pole units 221 are connected by the radial adjusting pieces to adjust the magnetic field shape.

[0070] In the embodiment, each magnetic pole unit 221 can be configured with different magnetic pole modules of different magnetic field parameters according to functional requirements, and the plurality of magnetic pole units 221 constitute a complete magnetic system module 22. The magnetic system module 22 composed of different magnetic pole modules of different magnetic field parameters has different initial magnetic field strengths, magnetic wrap angles, and magnetic pole numbers. The plurality of magnetic pole units 221 and the plurality of magnetic pole sliders 234 are one-to-one detachably connected, so that appropriate magnetic system modules 22 can be replaced according to specific magnetic field adjustment requirements. Therefore, the adjustable magnetic field magnetic separator provided in the embodiment can connect different magnetic pole units 221 by the magnetic pole slider 234 and drive the magnetic system module 22 to rise and fall in the radial direction of the drum 21 to adjust the magnetic field shape and the magnetic field strength.

[0071] For the same set of magnetic system module 22, by adjusting the distance between the magnetic system module 22 and the drum 21 to the sorting area, a set of magnetic field strength adjustment range can be achieved. Replacing different magnetic system module 22 can get different magnetic field strength adjustment range, the distance between the magnetic system module 22 and the sorting area is adjusted in the set adjustment stroke and the magnetic system module 22 can be replaced, the adjustable magnetic field magnetic separator provided by the embodiment of the application can realize that the adjustable range of the magnetic field strength can reach 300-8000Gs, and more kinds of materials can be sorted.

[0072] As an optional solution, the follower includes a rotating block, and the rotating block is fixed on the part of the adjusting shaft 231 located outside the drum 21.

[0073] In the embodiment, the follower rotates with the adjusting shaft 231, that is, the angular displacement of the follower corresponds to the linear displacement of the radial adjusting member (which can be the magnetic pole sliding block 234 in particular).

[0074] As an optional solution, the follower includes a sliding block 93, and the sliding block 93 is arranged on the part of the adjusting shaft 231 located outside the drum 21 through threaded connection. Specifically, the part of the adjusting shaft 231 located outside the drum 21 is provided with external threads, the sliding block 93 is provided with a through hole, and the through hole is provided with internal threads matched with the external threads. The magnetic field display device 9 further includes a mounting seat 91, and the mounting seat 91 is fixedly arranged (the mounting seat 91 can be connected with the drum support frame 1). The mounting seat 91 is provided with a sliding limiting structure 92, and the sliding block 93 can slide along the axial direction of the adjusting shaft 231 under the limitation of the sliding limiting structure 92.

[0075] In the embodiment, the movement of the sliding block 93 is realized through a lead screw mechanism, and through the linear displacement of the sliding block 93, the angle of rotation of the track disc 232 can be calculated, so as to obtain the lifting distance of the magnetic system module 22.

[0076] As an optional solution, as shown in Figure 6 The display module includes a pointer and a magnetic field data nameplate 97; the magnetic field data is marked on the magnetic field data nameplate 97 (to form a scale); the pointer is fixedly connected with the follower, and the pointer can move with the follower to point to the current magnetic field data of the magnetic field data nameplate 97 corresponding to the current position of the follower.

[0077] In the embodiment, the magnetic field data nameplate 97 can be fixed on the mounting seat 91, the adjusting shaft 231 is rotated to adjust the lifting of the magnetic system module 22, and at the same time, the follower drives the pointer to move, and the pointer points to the corresponding position of the magnetic field data nameplate 97, that is, the magnetic field data when the current magnetic system module 22 is located.

[0078] As an optional solution, as shown in Figure 5As shown, based on the above embodiment, further, a viewing window is provided on the mounting seat 91, and a magnetic field data nameplate 97 is provided at the viewing window so that the user can observe the movement of the follower through the viewing window.

[0079] like Figure 5 As shown, based on the above embodiment, the adjustable magnetic field magnetic separator can further include a locking member 236 to lock the position of the adjustment shaft 231. The structural form of the locking member 236 can be various, for example, through the cooperation of a fastener and a hole, or through a snap-fit ​​structure, etc. The locking member 236 can be connected to the roller support frame 1. If the magnetic field display device 9 includes a mounting seat 91, a locking member 236 can be provided between the mounting seat 91 and the adjustment shaft 231 to fix the position of the adjustment shaft 231, as shown in FIG. Figure 5 As shown, the locking member 236 includes a limiting plate connected to the mounting seat 91, a clamp connected to the adjustment shaft 231, a connecting plate connected between the limiting plate and the clamp via a fastener, and the like.

[0080] If the follower is a rotating block that rotates synchronously with the adjustment shaft 231, the pointer rotates with the follower, and the magnetic field data plate 97 can be configured in a disc or fan shape, etc., coaxially with the adjustment shaft 231. If the follower includes a slider 93 that moves linearly with the movement of the adjustment shaft 231, the magnetic field data plate 97 can be in the form of a strip extending axially along the adjustment shaft 231.

[0081] As an alternative, Figure 5 As shown, the display module includes: a position measuring element 94 for measuring the current position of the follower; a data processor 95, the position measuring element is in communication with the data processor 95, and the magnetic field data is stored in the data processor 95; a display, the data processor 95 can process the position information data of the follower to obtain the current magnetic field data and transmit it to the display; the display includes a display screen 96, and the display screen 96 can display the current magnetic field data.

[0082] In this embodiment, the data processor 95 can calculate and analyze the information transmitted by the position measuring element 94, and output the final magnetic field related information to the display screen 96. The user can directly obtain the magnetic field information from the display screen 96, which is convenient for use.

[0083] The position measuring element 94 may be a displacement sensor, which measures the displacement of the follower to obtain the position of the follower. If the follower rotates with the adjustment shaft 231, the displacement sensor may be an angular displacement sensor. If the follower moves linearly with the rotation of the adjustment shaft 231, the displacement sensor may be a linear displacement sensor.

[0084] It should be noted that the magnetic field display device 9 can only display the magnetic field information through the position measuring element 94, the data processor 95 and the display; or only display the magnetic field information through the pointer and the magnetic field data nameplate 97; or display the magnetic field information through both the position measuring element, the data processor 95 and the display and the pointer and the magnetic field data nameplate 97.

[0085] Further, on the basis of the above-mentioned embodiments, the magnetic field data further include the magnetic field shape, the magnetic force parameters of each of the plurality of magnetic pole units 221 and the magnetic force parameter curves; and the display screen 96 includes a plurality of display areas to display at least the magnetic field strength, the magnetic field shape, the magnetic force parameters of each of the plurality of magnetic pole units 221 and the magnetic force parameter curves of each of the plurality of magnetic pole units 221 respectively.

[0086] According to the moving distance of the slider 93, a plurality of magnetic field data results can be obtained, for example, the magnetic pole units 221 are four, which are the feeding magnetic pole, the sorting magnetic pole, the fine sorting magnetic pole and the unloading magnetic pole, and correspondingly form the feeding area, the sorting area, the fine sorting area and the unloading area, Figure 10 The magnetic induction intensity B variation curve generated by the adjustable magnetic system sorting space cylinder surface of the magnetic system module 22 of the present application is shown in the figure, unit (Gs), the adjustable values of the plurality of magnetic pole units 221 in the range of 0-20mm are comprehensively calibrated as a numerical curve, which is the magnetic field parameter curve. Figure 11 The fine sorting area gradient value variation curve of the magnetic system module 22 of the present application is shown in the figure, the adjustable values of the plurality of magnetic pole units 221 are comprehensively calibrated as a numerical curve, which is the magnetic field parameter curve. Figure 12 The fine sorting area adsorption force parameter value variation curve of the magnetic system module 22 of the present application is shown in the figure, unit (Gs2 / mm), the value is the magnetic adsorption force parameter in the magnetic separation operation, different mineral samples need different magnetic adsorption force. The magnetic field parameter direct observation method of the present application has the characteristics of simple structure, low cost, stability and high efficiency without complex magnetic force sensor and other devices, and has wide market application value. By setting a plurality of display areas, different parameter data can be displayed, and the user can understand the magnetic field characteristics more clearly.

[0087] For example, the magnetic field parameter direct observation method of the present application can be used in the magnetic field parameter direct observation device shown in the figure. Figure 1As shown, on the basis of the above embodiment, further, the drum device 2 further comprises a magnetic deflection angle adjusting assembly 24; the magnetic deflection angle adjusting assembly 24 can comprise a connecting shaft 241, a driving rod 242, a fixing frame 243 and a positioning piece 244, a part of the connecting shaft 241 is located outside the drum 21 and a part is located inside the drum 21, one end of the driving rod 242 is fixedly connected with the part of the connecting shaft 241 located outside the drum 21 (the connection can be realized by welding, fastener connection or interference fit connection and the like); the driving rod 242 is located outside the drum 21; the fixing frame 243 is fixed on the drum support frame 1; the positioning piece 244 is connected between the driving rod 242 and the fixing frame 243 to fix the position of the driving rod 242. The connecting piece is fixed on the connecting shaft 241. The connecting shaft 241 is provided with a connecting hole extending along the axial direction thereof (the connecting shaft 241 can be hollow), and at least part of the adjusting shaft 231 is arranged in the connecting shaft 241.

[0088] In the adjustable magnetic field magnetic separator provided by the embodiment, the connecting shaft 241 can be driven to rotate around its axis as the rotation center line, the connecting shaft 241 drives the connecting piece to rotate around the axis of the connecting shaft 241 as the rotation center line, so that the connecting piece drives the radial magnetic pole slider 234 to swing around the axis of the connecting shaft 241 as the rotation center line, and further drives the magnetic system module 22 to swing around the axis of the connecting shaft 241 as the rotation center line, thereby realizing the adjustment of the magnetic deflection angle of the magnetic system module 22.

[0089] Therefore, the adjustable magnetic field magnetic separator provided by the embodiment can realize the adjustment of the magnetic deflection angle. In addition, the magnetic deflection angle adjusting assembly 24 and the magnetic field radial adjusting assembly 23 in the adjustable magnetic field magnetic separator provided by the embodiment are not arranged independently of each other, at least part of the adjusting shaft 231 is arranged in the connecting shaft 241, and the connecting piece is connected with the connecting shaft 241. Such arrangement not only avoids the mutual interference of the magnetic deflection angle adjusting process and the module radial adjusting process, but also makes the magnetic deflection angle adjusting assembly 24 and the magnetic field radial adjusting assembly 23 compact in structure, occupy less space and have fewer components, so that the adjustable magnetic field magnetic separator can be compact in structure, occupy less space and be low in cost.

[0090] It can be understood that, in order to facilitate the adjusting process, the connecting shaft 241, the adjusting shaft 231 and the drum 21 are coaxially arranged.

[0091] The magnetic wrap angle and the number of magnetic poles of different magnetic separation assemblies can be stored in the data processor 95. A magnetic declination angle sensor for detecting the rotation angle of the connecting shaft 241 can be arranged on the supporting leg of the drum 21. The rotation angle of the connecting shaft 241 has a matching relationship with the swing angle of the magnetic system module 22. The swing angle of the magnetic system module 22 determines the magnetic declination angle of the magnetic system module 22. Therefore, the rotation angle of the connecting shaft 241 has a matching relationship with the magnetic declination angle. Thus, the magnetic declination angle of the magnetic system module 22 can be obtained according to the rotation angle of the connecting shaft 241. The magnetic field shape and the magnetic field strength of the magnetic separator can be visually adjusted, and the complex magnetic field coefficient transformation is converted into simple magnetic system module 22 and magnetic field parameter adjustment. It should be noted that the above content is only an example, and other means can also be used to achieve the same purpose, which will not be described here.

[0092] On the basis of the above embodiment, the connecting piece can be a connecting block. The connecting block is provided with a sliding hole on the wall intersecting the radial direction of the drum 21, and is provided with a connecting hole in communication with the sliding hole on the wall in the axial direction of the drum 21. The magnetic pole sliding block 234 is arranged in an inverted L shape. A part of the magnetic pole sliding block 234 is slidably arranged in the sliding hole, and the other part extends out of the sliding hole. The wall in the axial direction of the drum 21 of the magnetic pole sliding block 234 is provided with a sliding tooth. The sliding tooth extends out of the connecting hole and is connected with the spiral groove 233. In addition, the lifting distance of the magnetic system module 22 depends on the rotation interval and rotation angle of the track groove. The track can also adjust the gap size between the magnetic pole units 221 when adjusting the lifting distance of the magnetic system module 22, so as to change the magnetic force parameter distribution of the separation space and increase the types of minerals that can be separated by the magnetic separator.

[0093] As an optional solution, as shown in Figure 2 and Figure 3 The connecting piece includes a first housing 237 and a second housing 238 which are connected to each other, and a mounting cavity is formed between the first housing 237 and the second housing 238. The track disc 232 is arranged in the mounting cavity, and a part of the magnetic system sliding block 93 is also arranged in the mounting cavity, that is, the sliding tooth and the spiral groove 233 are connected in the mounting cavity. The second housing 238 is provided with a sliding hole. A sliding groove is arranged on one of the side wall of the sliding hole and the side wall of the magnetic pole sliding block 234, and a guide rail is arranged on the other. Specifically, the sliding groove can be arranged on the side wall of the sliding hole, and the guide rail can be arranged on the magnetic pole sliding block 234. Alternatively, the guide rail can be arranged on the side wall of the sliding hole, and the sliding groove can be arranged on the magnetic pole sliding block 234. In this way, the sliding of the magnetic pole sliding block 234 can be guided, so that the movement of the magnetic pole sliding block 234 is more stable.

[0094] As shown in Figure 2As shown, the connecting shaft 241 can include a first section of shaft and a second section of shaft arranged axially spaced apart, the first housing 237 is fixedly connected with the first section of shaft, and the second housing 238 is fixedly connected with the second section of shaft. The spacing will expose part of the adjusting shaft 231, and the track disc 232 is connected with the adjusting shaft 231 at the spacing.

[0095] In this embodiment, the driving rod 242 can be manually controlled to rotate, thereby driving the connecting shaft 241 to rotate. When the magnetic bias angle of the magnetic system module 22 is adjusted to the desired position, the current position of the connecting shaft 241 is fixed by the positioning member 244, thereby fixing the current magnetic bias angle.

[0096] The positioning member 244 can include a telescopic rod and a plurality of adjusting holes arranged along the length direction of the driving rod 242. The telescopic rod includes a fixed part arranged on the fixed frame 243 and a telescopic part connected with the fixed frame 243 through threads. The end of the telescopic part away from the fixed part can be connected with the adjusting hole through a fastener. Of course, other technical means can also be used.

[0097] Optionally, the fixed frame 243 can include an indication plate provided with marks indicating the rotation angle of the driving rod 242, or directly converted into the adjustment angle of the magnetic bias angle of the magnetic system module 22, to facilitate the user to master the adjustment amount.

[0098] The connecting shaft 241 can also be driven by a motor, a pneumatic cylinder or an oil cylinder, etc. It can realize driving and also can realize fixing the current position of the connecting shaft 241.

[0099] As shown in Figure 1 and Figure 2 On the basis of the above embodiment, further, the drum 21 can also include a drum flange 212 and a drum body 211 provided with two open ends. The two ends of the drum body 211 are provided with the drum flange 212. The adjustable magnetic field magnetic separator further includes a speed reducer 20, a transmission shaft 30, a transmission bearing seat 40 and an adjusting bearing seat 60. The transmission bearing seat 40, the adjusting bearing seat 60 and the speed reducer 20 are fixedly arranged relative to the drum support frame 1. The transmission shaft 30 is in transmission connection with the speed reducer 20. The transmission shaft 30 passes through the transmission bearing seat 40 and is in transmission connection with the drum flange 212 close to it to drive the drum flange 212 to rotate, thereby driving the entire drum 21 to rotate. The two drum flanges 212 can be respectively in rotation connection with the connecting shaft 241 through a drum rotation bearing seat 50. The connecting shaft 241 and the adjusting shaft 231 pass through the adjusting bearing seat 60, and the adjusting bearing seat 60 supports the connecting shaft 241 and the adjusting shaft 231. The connecting shaft 241 and the adjusting shaft 231 pass through the two drum rotation bearing seats 50 to be supported.

[0100] On the basis of the above-mentioned embodiments, the current position of the driving shaft 241 can be achieved by driving the adjusting shaft 231 by a motor, a cylinder or an oil cylinder, etc.

[0101] As an alternative, as shown in Figure 1 The magnetic field radial adjusting assembly 23 further comprises a hand wheel 235 fixedly connected with the adjusting shaft 231, and the hand wheel 235 is located outside the drum 21; and a locking member 236 for fixing the position of the adjusting shaft 231 after the hand wheel 235 drives the adjusting shaft 231 to rotate.

[0102] In the embodiment, the hand wheel 235 can be manually controlled to rotate, thereby driving the adjusting shaft 231 to rotate, and the cost is low.

[0103] As shown in Figure 1 and Figure 7 On the basis of any of the above-mentioned embodiments, further, the adjustable magnetic field magnetic separator further comprises a rack 5, and the rack 5 is provided with a groove 8.

[0104] The adjustable magnetic field magnetic separator further comprises a sorting space adjusting device 7 and an immersion depth displacement sensor 80, the sorting space adjusting device 7 (which can adjust the immersion depth of the drum 21, the immersion depth of the drum 21 refers to the distance between the bottom of the drum 21 and the bottom of the groove) is connected with the drum device 2; the immersion depth displacement sensor 80 can detect the displacement of the bottom of the drum 21 and transmit it to a data processor 95, and the data processor 95 obtains the position information of the bottom of the drum 21 according to the displacement and transmits it to a display.

[0105] In the embodiment, through the detection of the position of the bottom of the drum 21, or the displacement of the bottom of the drum 21 relative to the bottom of the groove 8, the immersion depth of the drum 21, i.e. the gap of the sorting space, can be achieved, and the sorting gap adjusting process can be visualized.

[0106] As shown in Figure 1 and Figure 7 On the basis of any of the above-mentioned embodiments, further, the adjustable magnetic field magnetic separator further comprises a drum horizontal adjusting device 6 connected with the sorting space adjusting device 7; one of the drum horizontal adjusting device 6 and the sorting space adjusting device 7 is connected between the rack 5 and the drum support frame 1, and the other is connected with the drum device 2.

[0107] Optionally, a horizontal displacement sensor can be provided to measure the horizontal displacement of the drum device 2.

[0108] As shown in Figure 8 and Figure 9As shown, in the width direction of the frame 5, magnetic ore outlets 82 are provided on both sides of the trough 8, so that the counterclockwise and clockwise operation of the drum 21 can be realized, that is, the trough 8 adopts a forward and reverse flow dual-action trough. At this time, a magnetic pole slider 234 can be set to connect different magnetic pole units 221. The magnetic system module 22 composed of multiple magnetic pole units 221 is symmetrically arranged about the center. By adjusting the magnetic declination of the magnetic system module 22, forward and reverse flow bidirectional operation can be realized. For example, Figure 8 and Figure 9 In the orientation shown (for illustrative purposes only and not limiting), the ore inlet is located on the left, with magnetic ore outlets 82 located on both the left and right sides. During downstream operation (drum 21 rotates clockwise), the center of the magnetic system module 22 can be adjusted to the left relative to the center of the drum 21 via the magnetic declination adjustment assembly 24. During countercurrent operation (drum 21 rotates counterclockwise), the center of the magnetic system module 22 can be adjusted to the right relative to the center of the drum 21 via the magnetic declination adjustment assembly 24. This achieves both downstream and countercurrent dual-action mineral separation, and the overall design and internal mechanical devices are simple. Switching between downstream and countercurrent dual-action mineral separation can be achieved simply by adjusting the magnetic declination. Combined with magnetic field shape, magnetic field intensity, and separation space adjustment, this essentially completes full coverage of magnetic separation samples.

[0109] It is understandable that a special magnetic system module 22 can also be configured for both forward and reverse flow operations.

[0110] like Figure 7 As shown, based on the above embodiment, the adjustable magnetic field magnetic separator further includes: a position display panel 10, which is connected to the portion of the connecting shaft 241 located outside the drum 21; the position display panel 10 is used to display the bottom profile of the drum 21, the position of the magnetic system module 22, and the size of the sorting space formed by the current position of the drum 21 and the bottom of the forward and reverse flow double-action trough body; the position display panel 10 rotates with the connecting shaft 241, thereby displaying the magnetic declination information and the magnetic wrap angle information.

[0111] In this embodiment, the position display panel 10 changes with the position of the roller 21. At this time, the gap between the bottom of the tank body 8 and the position display panel 10 can be directly observed, and the position information of the magnetic system module 22 on the position display panel 10 can also be intuitively displayed. The position display panel 10 is driven by the magnetic declination adjustment mechanism, and therefore displays not only the position information of the separation space between the roller 21 and the bottom plate of the tank body 8, but also the magnetic declination information of the magnetic system module 22, thereby achieving real-time display of magnetic field characteristics and separation space dimensions, providing more accurate data for effective separation adjustment. This adjustable magnetic separator has full visual adjustment of the magnetic separation space position relationship, which can cope with separation experiments of different mineral samples.

[0112] The position display panel 10 is combined with the magnetic field display device 9, and the adjustable magnetic field magnetic separator can further realize key value calibration of experimental magnetic separator parameters by adopting the intuitive monitoring display method of the magnetic field coefficient and the separation gap, and the selection data can provide certain guiding significance for magnetic separator parameter design of various ore samples.

[0113] It can be understood that the ore discharging assembly 70 can be arranged on the groove body 8.

[0114] The groove body 8 can also be provided with an overflow height adjusting piece 81.

[0115] The adjustable magnetic separator provided by the application has a wide adjustable magnetic induction intensity range, and by replacing different magnetic pole modules and adjusting the magnetic field, a range of up to 300-8000Gs can be covered, and the spatial magnetic force distribution parameters of multiple groups (for example, four groups) of magnetic poles can also be adjusted, and the adjustment process is bidirectional and visual throughout, which can ensure the operation convenience during the adjustment process, and only one rotating shaft structure is needed under the same magnetic pole module to complete the magnetic field parameter adjustment.

[0116] In some embodiments of the application, the magnetic field intensity adjustment range can be 1000Gs-4300Gs, the adjustment stroke is 20mm, and the effective separation space distance is 15-30mm, and the specific use process is as follows:

[0117] (1) The ore sample detection preliminarily judges the magnetic field separation parameter range, selects a reasonable magnetic system module 22, the module can realize the adjustment range distribution of the ore sample, and then sets the lowest value of the adjustment and adjusts from low to high.

[0118] (2) Set the separation space distance, the initial separation space of weak magnetic minerals is adjusted small, and the initial separation space of strong magnetic minerals is adjusted large, and then the best separation space is gradually selected.

[0119] (3) Select a lower initial rotating speed, and slightly adjust the magnetic deflection angle and the rotating speed to match;

[0120] (4) Start, start the separation operation, analyze the concentrate and tailings grade and composition every certain period of time, develop the next adjustment method after analysis, gradually increase the magnetic field intensity to a certain value for different ore samples; when adjusting, directly observe the data nameplate value or digital display screen value manually.

[0121] (5) Adjust the matching relationship between the separation space and the magnetic field intensity; adjust the matching relationship between the rotating speed of the magnetic separator and the magnetic field intensity according to the non-linear incremental principle, research the magnetic field intensity under the best beneficiation efficiency, record the key magnetic deflection angle parameters, separation space position parameters, rotating speed, magnetic field intensity and adsorption coefficient at this moment, and provide basis for subsequent production equipment design and selection.

[0122] (6) When the forward and reverse flow mode is changed, firstly, it is judged whether the magnetic pole module needs to be changed, and if the magnetic pole module needs to be changed, the step 1 is repeated.

[0123] (7) The initial position of the magnetic deflection angle is adjusted, and the steps 2, 3, 4 and 5 are repeated.

[0124] (8) The machine is cleaned, and the work is completed.

[0125] The adjustable magnetic field magnetic separator provided by the embodiment of the application has completed a test machine, and the test machine trial production is completed.

[0126] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the application, and not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the application. In the specification provided here, a large number of specific details are described. However, it can be understood that the embodiments of the application can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not described in detail in order to not obscure the understanding of the specification. In addition, those skilled in the art can understand that although some embodiments described herein include certain features and not others, the combination of features of different embodiments means that it is within the scope of the application and forms different embodiments.

Claims

1. A magnetic separator with adjustable magnetic field, characterized in that: include: A roller device capable of adjusting the magnetic field strength; the roller device comprises a roller, a magnetic system module and a magnetic field radial adjustment component; The magnetic system module is arranged in the drum; the magnetic field radial adjustment component is connected to the magnetic system module to be able to drive the magnetic system module to rise and fall along the radial direction of the drum, thereby adjusting the magnetic field strength; The adjustable magnetic field magnetic separator also includes: A magnetic field display device includes a follower located outside the drum and a display module; the follower is connected to the magnetic field radial adjustment assembly to follow the movement of the magnetic field radial adjustment assembly to achieve a matching relationship between the position of the follower and the position of the magnetic system module; the display module includes magnetic field data matching different positions of the follower, the magnetic field data including magnetic field intensity; the display module is capable of displaying current magnetic field data corresponding to the current position of the follower; The magnetic field radial adjustment component includes: an adjusting shaft, a portion of which is located inside the drum and another portion of which is located outside the drum; a radial adjusting member connected to the magnetic system module; a conversion structure capable of converting the rotation of the adjusting shaft into linear motion of the radial adjusting member along the radial direction of the drum; and a follower provided on the portion of the adjusting shaft located outside the drum to follow the movement of the adjusting shaft; The magnetic system module includes a plurality of magnetic pole units sequentially arranged along the circumference of the drum, and each of the magnetic pole units includes a plurality of magnetic pole modules sequentially arranged along the axial direction of the drum; There are multiple radial adjustment members, and the multiple magnetic pole units are detachably connected to the multiple radial adjustment members in a one-to-one correspondence; different magnetic pole units are connected by the radial adjustment members to adjust the magnetic field shape, so that the roller device can adjust the magnetic field shape.

2. The adjustable magnetic field magnetic separator according to claim 1, characterized in that: The magnetic field radial adjustment assembly further includes a connecting piece, which is disposed in the drum and can be fixed relative to the adjustment shaft, and a sliding hole is provided on the connecting piece; The radial adjustment member is a magnetic pole slider, which is slidably arranged along the sliding hole; The conversion structure includes a track disk, a spiral groove arranged on the track disk, and a sliding tooth arranged on the magnetic pole slider; the track disk is fixedly connected to the adjustment shaft; and the sliding tooth can move along the spiral groove.

3. The adjustable magnetic field magnetic separator according to claim 1, characterized in that: The follower includes a rotating block fixed to a portion of the adjusting shaft located outside the drum; And / or, the follower includes a slider, which is arranged on the part of the adjusting shaft located outside the drum through a threaded connection; the magnetic field display device also includes a mounting seat, which is fixed and provided with a sliding limiting structure, and the slider can slide along the axial direction of the adjusting shaft under the limitation of the sliding limiting structure.

4. The adjustable magnetic field magnetic separator according to claim 3, characterized in that: The display module includes a pointer and a magnetic field data nameplate; the magnetic field data is marked on the magnetic field data nameplate; The pointer is fixedly connected to the follower, and can follow the movement of the follower to point to the current magnetic field data on the magnetic field data nameplate corresponding to the current position of the follower.

5. The adjustable magnetic field magnetic separator according to claim 3, characterized in that: The display module includes: A position measuring element, used for measuring the current position of the follower; a data processor, the position measuring element being in communication with the data processor, and the magnetic field data being stored in the data processor; The display is configured such that the data processor can process the position information data of the follower to obtain the current magnetic field data and transmit the obtained data to the display; the display includes a display screen, and the display screen can display the current magnetic field data.

6. The adjustable magnetic field magnetic separator according to claim 5, characterized in that: The magnetic field data also includes magnetic field shape, magnetic parameters of each of the plurality of magnetic pole units, and magnetic parameter curves; The display screen includes multiple display areas to at least respectively display the magnetic field intensity, the magnetic field shape, the magnetic parameters of each of the multiple magnetic pole units, and the magnetic parameter curves of each of the multiple magnetic pole units.

7. The adjustable magnetic field magnetic separator according to claim 5, characterized in that: The adjustable magnetic field magnetic separator further includes: a separation space adjustment device and an immersion depth displacement sensor, wherein the separation space adjustment device is connected to the drum device; the immersion depth displacement sensor is capable of detecting the displacement of the drum bottom and transmitting the information to the data processor, and the data processor obtains the position information of the drum bottom according to the displacement and transmits the information to the display; and / or, The drum device further comprises: The magnetic deflection angle adjustment assembly includes a connecting shaft connected to the magnetic system module, wherein a portion of the connecting shaft is located outside the drum and a portion is located inside the drum; the connecting shaft is provided with a connecting hole extending along its axial direction, and at least a portion of the adjustment shaft is passed through the connecting shaft; trough body; a position display plate connected to a portion of the connecting shaft located outside the drum; The position display panel is used to display the bottom contour of the drum, the position of the magnetic system module, and the size of the sorting space formed by the current position of the drum and the bottom of the tank; The position display plate rotates along with the connecting shaft, thereby displaying magnetic declination information and magnetic wrap angle information.

8. The adjustable magnetic field magnetic separator according to claim 2, characterized in that: The adjustable magnetic field magnetic separator comprises: The trough body is a dual-action trough body with both forward and reverse flow functions and has a dual-action sorting function; The magnetic pole slider is connected to different magnetic pole units, and multiple magnetic pole units constitute the magnetic system module which is symmetrically arranged about the center line. Combined with the trough body with the forward and reverse flow dual-action sorting function, forward and reverse flow bidirectional operation is achieved by adjusting the magnetic deflection angle of the magnetic system module.

Images