A system and method for extracting high-purity resource materials from red mud

Abstract

The present invention belongs to the technical field of comprehensive utilization of industrial waste slag and nonferrous metals, and specifically relates to a system and method for extracting high-purity resource materials from red mud. Among them, the magnetic field component is located inside the drum, and the drum can rotate along a fixed axis in the working tank. The magnetic field component does not rotate with the drum, and the magnetic field component is used to provide a magnetic field; when the drum is cut open, the bottom of the working tank has three layers of concave structures, which are the first layer structure, the second layer structure and the third layer structure from bottom to top. The first layer structure, the second layer structure and the third layer structure are connected in an S shape, and one end of the first layer structure is the feed port. The present application uses three layers of concave structures to reflux and mix the coarse ore slurry multiple times, so that the coarse ore slurry is mixed more violently, the turbulent effect is better achieved, and the magnetic separation accuracy is improved. By setting a protrusion at the first layer structure, the slurry is strongly decelerated, and a large number of vortices appear in the slurry at the protrusion, achieving a further mixing effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of comprehensive utilization of industrial waste residues and nonferrous metals, and particularly relates to a system and method for extracting high-purity resource materials from red mud. Background Art

[0002] Red mud is a type of tailings produced during aluminum production. Its mineral composition is complex, primarily containing Al₂O₃, Fe₂O₃, SiO₂, and other minerals. It is typically highly alkaline and corrosive. On average, 1.0-2.0 tons of red mud are generated for every ton of alumina produced.

[0003] Red mud is rich in iron, aluminum, calcium, silicon, titanium, sodium, nickel, manganese, chromium, vanadium, as well as scandium, yttrium, and lanthanum rare earth elements. Through comprehensive development and utilization, it can be transformed from waste into treasure and harm into benefit. The recovery of valuable metals from red mud is becoming increasingly important, especially in the face of the increasing scarcity of mineral resources. How to develop and utilize this astonishing amount of red mud, which has been dormant for many years, truly achieve "tail-free, waste-free, and secondary pollution-free" modern production, and promote comprehensive mining environmental management, is a major issue of common concern in my country and around the world. Therefore, the development and utilization of red mud is of great practical significance.

[0004] Red mud contains as much as 13%-22% iron oxide, 4%-8% titanium oxide, and 14%-20% aluminum oxide, even higher than in some titanium ores. These three elements are all valuable for extraction. However, existing technology only uses magnetic separators to extract refined iron powder based on the magnetic differences between ferrous and non-ferrous metals. Comprehensive red mud treatment requires the separation and extraction of non-ferrous metals like titanium and aluminum. Furthermore, the refined iron powder currently extracted using magnetic separators is of low quality, and its quality needs to be further improved. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, the present invention provides a system and method for extracting high-purity resource materials from red mud.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is:

[0007] A system for extracting high-purity resource materials from red mud is provided, comprising:

[0008] Working tank, magnetic field assembly, roller;

[0009] The magnetic field assembly is located inside the drum, and the drum can rotate along a fixed axis in the working groove. The magnetic field assembly does not rotate with the drum, and the magnetic field assembly is used to provide a magnetic field;

[0010] Among them, the cross section of the drum shows that the bottom of the working tank has three concave structures, namely the first layer structure, the second layer structure and the third layer structure from bottom to top. The first layer structure, the second layer structure and the third layer structure are connected in an S shape. One end of the first layer structure is the feed port, and the first layer structure has a water outlet. The third layer structure is connected to the tailings pipeline.

[0011] Among them, a scraper is provided at the end opposite to the feed port, the highest end of the scraper is close to the drum, and the faucet above the scraper faces the surface of the drum.

[0012] Preferably, there is a first partition at the connection point between the first layer structure and the second layer structure. When the first partition is subjected to a force less than a threshold value F, the first partition separates the first layer structure from the second layer structure. When the first partition is subjected to a force greater than the threshold value F, the first layer structure is connected to the second layer structure.

[0013] Preferably, a protrusion is provided on the first layer structure near the first partition.

[0014] Preferably, the distance in the axial direction of the drum represents the length, and the length of the first channel connecting the second layer structure and the third layer structure is smaller than the length of the second layer structure.

[0015] Preferably, there is an adjustment component;

[0016] Wherein, the adjustment component is used to adjust the distance between the magnetic field component and the drum wall.

[0017] Preferably, the first rotating shaft of the magnetic field assembly is sleeved with the second rotating shaft of the drum via a bearing;

[0018] The magnetic field component has a magnet, and the adjustment component includes a threaded structure and a connecting piece. The threaded structure is fixed on the first rotating shaft, and the diameter of the threaded structure changes evenly. The connecting piece is used to connect the magnet and the threaded structure, and the connecting piece and the threaded structure are used in conjunction with each other.

[0019] Preferably, the end face of the first rotating shaft has an indicator line, and the outside of the bearing has scale lines, and the indicator line and the scale lines are used in conjunction with each other.

[0020] Preferably, the magnets of the magnetic field assembly are permanent magnets.

[0021] A method for extracting high-purity resource materials from red mud, comprising the system for extracting high-purity resource materials from red mud, specifically comprising the following steps:

[0022] S1: energize the motor to start the drum rotating;

[0023] S2: Turn on the faucet and spray water toward the drum wall;

[0024] S3: The slurry is fed into the feed port, and water is delivered to the feed port through the water delivery end;

[0025] S4: Collect tailings in the tailings trough and collect concentrate in the concentrate trough.

[0026] Preferably, the distance between the magnetic field assembly and the drum wall is changed by rotating the first rotation shaft of the magnetic field assembly.

[0027] The present application provides a system for extracting high-purity resource materials from red mud. The beneficial effects of the present invention are embodied in the following aspects: first, the present application uses a three-layer concave structure to reflux and mix the coarse ore slurry multiple times, so that the coarse ore slurry is mixed more vigorously, the turbulence effect is better achieved, and the magnetic separation accuracy is improved. Second, by setting a protrusion at the first layer of structure, the slurry is strongly decelerated at the protrusion, and a large number of vortices appear in the protrusion slurry, achieving the effect of further mixing. Third, the present application achieves the adjustment of the magnetic field by adjusting the distance between the magnetic field assembly and the drum, which reduces the risk of adjusting large current without reducing the magnetic separation accuracy and saves electric energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is an overall three-dimensional diagram of an embodiment of the present invention;

[0029] Figure 2 This is a perspective view of the present invention without the side wall of the drum;

[0030] Figure 3 for Figure 2 A is an enlarged schematic diagram;

[0031] Figure 4 A partial perspective view of a drum cross section according to the present invention;

[0032] Figure 5 for Figure 4 A magnified schematic diagram of middle B;

[0033] Figure 6 This is a schematic diagram of the first channel of the present invention;

[0034] Figure 7 A sectional view of the present invention taken from the cross section of the drum;

[0035] Figure 8 A perspective view of the magnetic field assembly of the present invention;

[0036] Figure 9 It is a three-dimensional diagram of the thread structure of the present invention;

[0037] Figure 10 A front view of an embodiment of the present invention;

[0038] Figure 11 An enlarged view of the active end of the first rotating shaft of the magnetic field assembly of the present invention;

[0039] Figure 12 A schematic diagram of the present invention having a handle;

[0040] Figure 13 A schematic diagram of an angle sensor according to the present invention;

[0041] Figure 14 for Figure 13 A magnified schematic diagram of middle C;

[0042] Figure 15 The flowchart of one embodiment of the present invention is shown in FIG.

[0043] Description of Reference Numerals

[0044] 1. Working tank; 2. Magnetic field assembly; 3. Roller; 4. Bearing; 11. First structure; 12. Second structure; 13. Third structure; 14. Tailings pipe; 15. Concentrate tank; 111. Water outlet; 112. Protrusion; 121. Partition; 131. First channel; 21. First rotating shaft; 22. Threaded structure; 23. Connector; 24. Permanent magnet; 211. Handle; 212. Angle sensor; 213. Absolute scale line; 221. Slot; 31. Faucet; 32. Water pipe; 33. Scraper; 41. Indicator line; 42. Scale line DETAILED DESCRIPTION

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] See also Figures 1-15 As shown, the specific embodiments provided by the present invention are as follows:

[0047] Example 1:

[0048] like Figure 1-Figure 5 As shown, a system for extracting high-purity resource materials from red mud includes:

[0049] Working tank 1, magnetic field assembly 2, roller 3;

[0050] The magnetic field assembly 2 is located inside the drum 3. The drum 3 can rotate along a fixed axis in the working tank 1. The magnetic field assembly 2 does not rotate with the drum 3. The magnetic field assembly 2 is used to provide a magnetic field.

[0051] Among them, the cross section of the drum 3 shows that the bottom of the working tank 1 has three concave structures, namely, the first layer structure 11, the second layer structure 12 and the third layer structure 13 from bottom to top. The first layer structure 11, the second layer structure 12 and the third layer structure 13 are connected in an S-shape. One end of the first layer structure 11 is the feed port, and the first layer structure 11 has a water outlet end 111. The third layer structure 13 is connected to the tailings pipeline 14;

[0052] A scraper 33 is provided at the end opposite to the feed port, the highest end of the scraper 33 is close to the drum 3 , and the faucet 31 above the scraper 33 faces the surface of the drum 3 .

[0053] When extracting high-purity resources from red mud, one of the most popular fine screening methods is magnetic separation. Magnetic separation utilizes the principle of magnetic field to separate magnetic materials from non-magnetic materials. However, magnetic separation also suffers from inefficiencies. First, its accuracy is affected not only by the magnetic field but also by the state of the slurry being separated. Mineral particles in the ore material are not arranged in a single layer. During the adsorption process, magnetic particles in the bottom layer must overcome not only their own gravity but also the pressure exerted by particles in the upper layers. Therefore, particles near the bottom layer are not easily attracted by the magnetic field, resulting in low recovery rates. To attract the bottom layer, the magnetic field strength must be further increased. However, this increased field strength attracts weakly magnetic non-target minerals in the upper layers, resulting in low recovery accuracy. Secondly, magnetic mineral particles and non-magnetic mineral particles gather together in the form of compounds, and strong magnetic substances and weak magnetic substances gather together to form spheres, clumps, etc. During magnetic separation, non-magnetic substances and weak magnetic substances are also easily adsorbed on the surface of the drum. Taking the extraction of refined iron powder as an example, the iron-titanium mixture gathers together, and the iron-titanium polymer is adsorbed on the drum together and separated into the refined iron powder, which will affect the accuracy of the refined iron powder to a certain extent.

[0054] In existing magnetic separation systems, coarse ore slurry is fed to one end of the working trough and suspended by the dispersing water. Magnetic particles are attracted to the surface of the drum by the magnetic field force and move upward with the drum. During this movement, non-magnetic particles mixed with the magnetic particles are separated. When the magnetic particles are carried by the rotating drum to the outer magnetic zone, the magnetic field weakens and they are washed down by the flushing water into the concentrate trough. The dispersing water, which exerts a certain pressure to disperse the coarse ore slurry, displaces the magnetic particles adsorbed on the drum, dislodging them through the scraper and dropping them into the concentrate trough. Non-magnetic materials and less magnetic particles, driven by the slurry flow within the trough, flow into the tailings trough.

[0055] The existing magnetic separation system has a single-layer working tank and a double-layer working tank from the feed inlet to the separation point.

[0056] In a magnetic separation system with a single working tank, the slurry enters the working tank and is dispersed by water before directly entering the magnetic field. However, due to the limited distance between the water end and the feed port to the magnetic field, the water does not disperse the slurry evenly, resulting in inconsistent slurry concentration within the magnetic area. Some magnetic areas have a higher concentration of magnetic mineral particles, while others have a lower concentration. In magnetic areas with a higher concentration of magnetic mineral particles, multiple layers of mineral particles are adsorbed on the surface of the drum in these areas. Due to the rotation of the drum and the irregular flow friction of the slurry, the magnetic particles near the outer layer detach from the drum and re-enter the slurry. Repeated adsorption and falling cause some magnetic particles to be discharged into the tailings tank along with non-magnetic materials, resulting in the loss of target materials.

[0057] In a magnetic separation system with two working tanks, the slurry enters the working tank, is dispersed by water, flows through the first tank, and then enters the second tank through a vertically ascending channel. The drum is located above the second tank. Although this method increases the distance over which the water can act, resulting in a more even distribution of most of the mineral particles in the slurry, it does suffer from the presence of many clinging particles in the slurry, including magnetic and non-magnetic particles. When the magnetic particles are adsorbed onto the drum, the non-magnetic particles clinging to the magnetic particles are also carried into the concentrate tank, reducing the purity of the target material.

[0058] To this end, it is crucial to evenly distribute the mineral particles in the slurry and separate the magnetic mineral particles from the non-magnetic mineral particles.

[0059] In one embodiment, the present application provides a system for extracting high-purity resource materials from red mud. The drum 3 can rotate along a fixed axis in the working tank 1. The working tank 1 is used to hold coarse ore slurry to be separated and provide a place for material separation. The bottom of the working tank 1 is connected to a tailings pipe 14, which is used to transmit tailings slurry. The magnetic field component 2 does not rotate with the drum 3 inside the drum 3, and the magnetic field area generated by the magnetic field component 2 remains unchanged relative to the working tank 1.

[0060] When refining high-purity resource materials through magnetic separation, the coarse ore slurry is input from the feed port of the first layer structure 11, and then pressurized water is input into the working tank 1 through the water outlet 111. At this time, the coarse ore slurry is flushed into the second layer structure 12 from the feed port of the first layer structure 11 due to the water pressure. The coarse ore slurry is then flushed into the third layer structure 13 from the second layer structure 12. When the coarse ore slurry reaches the third layer structure 13, the magnetic material is adsorbed to the surface of the drum 3 by the magnetic field component 2 in the drum 3. The rotating drum 3 transfers the magnetic material, while the non-magnetic material or weak magnetic material that is not adsorbed falls into the tailings pipe 14 and is transported to the tailings tank. When the magnetic material is transferred to the area with weaker magnetic field by the drum 3, water is sprayed on the magnetic material on the surface of the drum 3 through the faucet 31. The magnetic material is washed off by the water due to the weakening of magnetism, and then the fallen magnetic material flows into the concentrate tank 15 along the scraper 33.

[0061] In this embodiment, the pressurized water input into the first layer structure 11 can, on the one hand, dilute the coarse ore slurry, allowing for a more thorough separation of magnetic and non-magnetic materials, further facilitating the magnetic separation of magnetic materials. On the other hand, it can increase the pressure on the coarse ore slurry, causing it to be more vigorously mixed, achieving a better turbulent flow effect, and improving the accuracy of magnetic separation.

[0062] Looking at the cross section of the drum 3, the first layer structure 11, the second layer structure 12 and the third layer structure 13 are all concave downward. Under the action of water pressure, when the coarse ore slurry reaches the position where the first layer structure 11 turns to the second layer structure 12, the coarse ore slurry at the turn will be subjected to forces in multiple directions such as the resistance of the turning side wall and gravity. When it reaches the highest point, the slurry that descends due to gravity impacts the slurry that moves upward, causing the slurry to mix at the turn before entering the second layer structure 12. Since the second layer structure 12 is concave, the coarse ore slurry flows back into the second layer structure 12 from the turn, further making the slurry in a turbulent state and enhancing the mixing degree of the slurry, thereby making the separation of the target material more accurate. The same principle is used at the turn from the second layer structure 12 to the third layer structure 13 to stir the slurry again, making the coarse ore slurry mixed more evenly, and the magnetic material in the continuously rolling coarse material slurry sinks less. For this reason, the present application can adsorb more magnetic materials into the drum 3 and further extract high-precision magnetic materials. It should be noted that the magnetic material may include iron, cobalt, chromium, neodymium, aluminum-magnesium alloy, etc., and is not specifically limited here.

[0063] It should be noted here that the third layer structure 13 is connected to the tailings pipe 14, and there can be multiple ways to connect the magnetic field assembly 2 and the drum 3. In one embodiment, the magnetic field assembly is fixedly connected to the bracket, and the rotating shaft of the magnetic field assembly is connected to the drum through a bearing. The bracket provides support force for the magnetic field assembly and the drum, so that the drum can rotate while the magnetic field assembly does not move.

[0064] In another optional embodiment, the magnetic field assembly is fixedly connected to the first bracket, and the roller is connected to the second bracket. The first bracket provides support for the magnetic field assembly, and the second bracket provides support for the roller. When the roller rotates, no force is generated between the magnetic field assembly and the first bracket, so that the roller can rotate while the magnetic field assembly does not move.

[0065] It should be noted here that the water outlet 111 can have multiple water outlets, and the multiple water outlets are evenly distributed on the water pipe 32; the faucets 31 above the scraper 33 can be multiple and evenly distributed, and the water pressure of each faucet 31 can be adjusted synchronously.

[0066] Example 2:

[0067] like Figure 6 As shown, a first partition 121 is provided at the connection point between the first layer structure 11 and the second layer structure 12. When the first partition 121 is subjected to a force less than a threshold value F, the first partition 121 separates the first layer structure 11 from the second layer structure 12. When the first partition 121 is subjected to a force greater than the threshold value F, the first layer structure 11 and the second layer structure 12 are connected.

[0068] Specifically, the first partition 121 has a fixed end and a movable end. The fixed end is hinged to the second layer structure 12 through a recovery component. When the movable end is subjected to a force less than a threshold value F, it abuts against the first layer structure 11. When the movable end is subjected to a force greater than the threshold value F, the first partition 121 is pushed open. A flow channel is provided between the first partition 121 and the first layer structure 11. The coarse ore slurry is rushed from the first layer structure 11 into the second layer structure 12. When the movable end is subjected to a force less than the threshold value F, the first partition 121 returns to the state of abutting against the first layer structure 11 due to the action of the recovery component. This prevents the coarse ore slurry in the second layer structure 12 from flowing back to the first layer structure 11. This application increases the efficiency of the coarse ore slurry transmission. The recovery component can be a device with a recovery function, such as a torsion spring or a spring. The recovery component has an outer packaging shell to prevent the slurry from entering and causing the recovery component to be blocked.

[0069] The present application can allow more coarse ore slurry to flow back to the second layer structure through the first partition, thereby improving the transportation efficiency of the coarse ore slurry and reducing the time required for magnetic separation to a certain extent.

[0070] Furthermore, a baffle is provided at the junction of the first partition and the first layer structure. The baffle is fixed to the first layer structure and is used to prevent the movable end of the first partition from moving toward the first layer. This also prevents the movable end from being difficult to push away after abutting against the first layer structure. The present application can ensure the continuous operation of magnetic separation through the baffle.

[0071] In another embodiment, the second partition has a fixed end and a movable end. The fixed end is hinged to the first layer structure through a recovery assembly. When the movable end is subjected to a force less than a threshold value F, it abuts against the second layer structure. When the movable end is subjected to a force greater than the threshold value F, the second partition is pushed open. There is a flow channel between the second partition and the second layer structure, and the coarse ore slurry is flushed from the first layer structure into the second layer structure.

[0072] Example 3:

[0073] like Figure 6 As shown, a protrusion 112 is provided on the first layer structure 11 near the first separator 121 .

[0074] In this embodiment, under the action of water pressure, when the coarse ore slurry reaches the position of the protrusion 112, the slurry is blocked by the protrusion 112 and is strongly decelerated. Then the slurry makes a strong swirling motion at the protrusion 112, and a large number of vortices appear in the slurry, achieving a further mixing effect. The mixed slurry then flows into the second layer structure 12, so that the coarse ore slurry can be mixed more evenly, thereby separating more magnetic substances from non-magnetic substances and improving the accuracy of magnetic separation.

[0075] It should be noted that the protrusion 112 may be in the form of a blocking plate, a blocking bar, or a blocking block, which is not specifically limited here.

[0076] In another embodiment, when the drum is cut open, the left side is the feed port, the baffle is located on the right side of the first layer structure, the main flow direction of the slurry is from left to right, and the plane where the baffle is located is nearly perpendicular to the main flow direction of the slurry. The baffle can have a greater blocking effect on the coarse ore slurry, prompting the coarse ore slurry to be strongly mixed at the baffle, thereby improving the accuracy of magnetic separation.

[0077] In one embodiment, in the cross section of the drum, the end where the second layer structure communicates with the first layer structure is the first end, wherein the curvature radius of the first end is greater than the curvature radius of the first layer structure at the bend.

[0078] Example 4:

[0079] like Figure 4 and Figure 6 As shown, the distance in the axial direction of the drum 3 represents the length, and the length of the first channel 131 connecting the second layer structure 12 and the third layer structure 13 is smaller than the length of the second layer structure 12 .

[0080] In this embodiment, when the coarse ore slurry is transferred from the second layer structure 12 to the third layer structure 13, the coarse ore slurry is further mixed when it enters the narrow channel from the wide channel (second layer structure 12), and then flows from the narrow channel to the wide channel (third layer structure 13), so that the coarse ore slurry in the third layer structure 13 is fully mixed. On the one hand, it can avoid the precipitation of magnetic substances, and on the other hand, it can separate more magnetic substances from non-magnetic substances, thereby improving the accuracy of magnetic separation.

[0081] Furthermore, the tailings pipe is located at one end away from the first channel. As the slurry moves, under the same magnetic field strength, the longer the magnetic field area the slurry passes through, the greater the probability that the magnetic material will be adsorbed, thereby increasing the adsorption rate of the target object and reducing the loss of the target substance.

[0082] Example 5:

[0083] Adjustment components;

[0084] Wherein, the adjustment component is used to adjust the distance between the magnetic field component and the drum wall.

[0085] The commonly used demagnetization method currently involves passing fine iron powder through an energized solenoid. By supplying an alternating current to the solenoid, the magnetic induction intensity inside the solenoid is altered, thereby demagnetizing the magnetized fine iron powder. This method has two problems. First, the electromagnetic force is not strong enough, resulting in low efficiency in removing magnetic materials. This method relies heavily on adjusting the current to change the magnetic field strength, requiring a thicker coil and a larger current adjustment range. The current passing through the coil is very high, and a distribution cabinet is used to control this high-power coil during demagnetization. This method is highly risky and energy-intensive. Second, the coil is an inductive device with a certain impedance. Using a distribution cabinet to accurately regulate high currents places high performance demands on the electronic components of the electrical equipment, further increasing the difficulty and cost of implementation.

[0086] In this embodiment, the present application has an adjustment component, which is used to adjust the distance between the magnetic field component and the drum wall.

[0087] In an optional embodiment, the adjustment component is fixedly connected to the system bracket, and the adjustment component is fixedly connected to the magnetic field component. The adjustment component allows the magnetic field component and the system bracket to be displaced without generating additional force on the drum wall during the displacement process.

[0088] Specifically, the adjustment component can be a cylinder, which is fixed on a bracket. The push rod of the cylinder is connected to the magnetic field component. The cylinder is controlled to move back and forth by an electromagnetic valve, thereby adjusting the distance between the magnetic field component and the drum wall. That is, for slurries with different compositions, the target substance can be extracted by adjusting the magnetic field strength in the working tank.

[0089] The adjustment component can also be a servo motor, and the rotating shaft of the servo motor is connected to the magnetic field component through a thread, which can convert the rotational motion of the servo motor into the linear motion of the magnetic field component, thereby adjusting the distance between the magnetic field component and the roller.

[0090] The adjustment component may also include a swing arm, one end of which is hinged to the axis of the magnetic field component, and the other end of the swing arm is sleeved with the fixed rod, so that when the swing arm and the fixed rod move, the height of the magnetic field component changes, and the fixed sleeve rod provides support force for the magnetic field component.

[0091] Example 6:

[0092] like Figure 7-Figure 9 As shown, the first rotating shaft 21 of the magnetic field assembly 2 and the second rotating shaft of the drum 3 are sleeved via a bearing 4;

[0093] The magnetic field assembly 2 has a magnet, and the adjustment assembly includes a threaded structure 22 and a connector 23. The threaded structure 22 is fixed on the first rotating shaft 21. The diameter of the threaded structure 22 varies uniformly. The connector 23 is used to connect the magnet and the threaded structure 22. The connector 23 and the threaded structure 22 are used in conjunction with each other.

[0094] In this embodiment, the diameter of the threaded structure changes uniformly, for example, the screw diameter increases or the screw diameter gradually decreases, and a connecting piece is provided at the screw structure, which is used in conjunction with the thread and is used to connect the magnet and the threaded structure.

[0095] Furthermore, the length of the third layer structure in the axial direction of the drum is smaller than the length of the magnet in the axial direction of the drum. When the magnet moves in the axial direction of the drum along with the threaded structure, the third layer structure is always in a uniform magnetic field environment.

[0096] In another embodiment, the adjustment assembly includes a limiter, which prevents the connecting member from being displaced in the axial direction, so that when the axis of the magnetic field assembly is rotated, only the distance between the magnetic field assembly and the drum changes.

[0097] It should be noted here that the rotation of the drum is driven by the first motor, and the rotation of the shaft of the magnetic field assembly can be driven by the second motor or by an external force.

[0098] Since the process with fixed parameters has limited contribution to improving the grade and quality of valuable resources, with respect to the existing magnetic separation method using electromagnets, this application realizes the adjustment of the magnetic field by adjusting the distance between the magnetic field assembly and the drum. Without reducing the magnetic separation accuracy, it reduces the risk of adjusting large currents and saves electricity.

[0099] Example 7:

[0100] like Figure 10-11 As shown, the end surface of the first rotating shaft 21 has an indicator line 41 , and the outside of the bearing 4 has a scale line 42 , and the indicator line 41 and the scale line 42 are used in conjunction with each other.

[0101] In this embodiment, when the shaft of the magnetic field assembly is driven to rotate by a second motor or an external force, the indicator line rotates relative to the scale line, and the distance between the magnetic field assembly and the drum wall is represented by D. The scale line to which the indicator line points corresponds one-to-one with the value of D. When the indicator line points to the 0 end of the scale line, it indicates that D is the reference distance value D1; when the indicator line points to the negative value of the scale line, it indicates that D is smaller than the reference distance value D1. The larger the absolute value of the negative value, the smaller D is than the reference distance value D1. Similarly, when the indicator line points to the positive value of the scale line, it indicates that D is larger than the reference distance value D1. The larger the positive value, the larger D is than the reference distance value D1. To this end, the present application fine-tunes the magnetic field in the working tank by visually adjusting the rotation of the shaft of the magnetic field assembly through the indicator line. This reduces the risk of adjusting large currents and saves energy without reducing the accuracy of magnetic separation.

[0102] In one embodiment, if Figure 12 As shown, when the shaft of the magnetic field assembly is driven to rotate by the handle 211, the first shaft is slowly rotated according to the scale line when the handle is used for fine adjustment, which can ensure that the adjustment is in place at one time. Compared with the second motor drive, manual adjustment has higher accuracy and is more energy-saving.

[0103] Example 8:

[0104] The magnet of the magnetic field assembly is a permanent magnet, which is connected to the shaft of the magnetic field assembly through a connecting bracket.

[0105] Existing magnetic field components primarily use electromagnets to generate magnetic fields. However, these electromagnets require constant power to generate magnetic fields, and regulating the magnetic field through current requires high electronic components. There are also risks associated with regulating high currents. Therefore, in this embodiment, the magnetic field components are permanent magnets. Permanent magnets are always magnetic and do not consume electricity. This significantly saves energy by using permanent magnets as magnetic field components.

[0106] Example 9:

[0107] Turning the handle drives the first rotating shaft. However, because the first rotating shaft is subject to the gravity of the magnetic core and the resistance of the bearing, long-term adjustment of the distance between the magnetic core and the magnetic field can easily cause the first rotating shaft to twist and deform. When the first rotating shaft twists and deforms, on the one hand, the distance between the magnetic core and the roller becomes inconsistent, that is, the magnetic field strength varies in different areas of the third layer structure, resulting in an increase in the types of magnetic materials adsorbed on the roller surface. For example, when the magnetic field strength on the roller surface becomes stronger, weak magnetic materials that should not be adsorbed are adsorbed, thereby reducing the accuracy of the target material being extracted. On the other hand, if the first rotating shaft is twisted for a long time without being discovered and updated, once the first rotating shaft breaks, it can easily lead to the scrapping of the entire magnetic separation system.

[0108] To this end, in this embodiment, Figure 13-14 As shown, an angle sensor 212 is installed at the driven end of the first rotating shaft. The detection end of the angle sensor is fixedly connected to the first rotating shaft, and the body of the angle sensor is fixedly connected to the bracket. When the first rotating shaft is rotated, the present application can obtain the angular deflection data of the driven end of the first rotating shaft through the angle sensor, and then compare the obtained angular deflection data with the angular deflection data of the active end to obtain the torsion of the first rotating shaft. The rotation angle of the active end of the first rotating shaft can be detected by the angle sensor or obtained through the operating parameters of the second motor. The present application can promptly detect the torsion of the first rotating shaft to ensure the accuracy of magnetic material separation.

[0109] Example 10:

[0110] The first shaft is often twisted gradually, not suddenly. When twisted with a strong force, the angle sensor can detect a twisting angle of, for example, 0.5°-1°, allowing for timely detection of the first shaft's twist. However, when the twisting deviation is small, the angle sensor cannot detect it, while the amount of twisting gradually increases. This eventually causes the first shaft to twist, yet remains undetectable by the angle sensor. This situation can significantly impact the extraction of magnetic materials.

[0111] In this embodiment, if Figure 14 As shown, by setting an absolute scale line 213 at the driven end of the first rotating shaft, the indicator line of the first rotating shaft in the initial state is aligned with the reference position of the absolute scale line 213. When the active end of the first rotating shaft returns to the initial position, the torsion of the first rotating shaft is judged by observing the positional relationship between the indicator line of the driven end and the absolute scale line. The present application can detect the torsion of the first rotating shaft in real time, effectively avoiding the influence of the torsion of the first rotating shaft on the separation accuracy of the system.

[0112] It should be noted here that the present application can be used in combination with the angle sensor 212 .

[0113] Example 11:

[0114] like Figure 15 As shown, a method for extracting high-purity resource materials from red mud specifically comprises the following steps:

[0115] S1: energize the motor to start the drum rotating;

[0116] S2: Turn on the faucet and spray water toward the drum wall;

[0117] S3: The slurry is fed into the feed port, and water is delivered to the feed port through the water delivery end;

[0118] S4: Collect tailings in the tailings trough and collect concentrate in the concentrate trough.

[0119] In this embodiment, a method for extracting high-purity resource materials from red mud is provided. In a system for extracting high-purity resource materials, taking the extraction of refined iron powder as an example, first, the motor is energized to start the rotation of the drum 3; since the magnetic field component 2 of the present application uses a permanent magnet 24 to generate a magnetic field, a magnetic field is already present in the space of the third layer structure 13, and then the faucet 31 is turned on to spray water toward the wall of the drum 3; the slurry to be separated is fed into the feed port, and water with a certain pressure is fed to the feed port through the water supply end in the first layer structure 11; the water dilutes the slurry on the one hand, and on the other hand The surface promotes sufficient mixing of the slurry, and then the mixed and diluted slurry enters the second structure 12 from the first layer structure 11, continues to be mixed in the second structure 12, and then enters the third structure 13, and is mixed in the third structure 13. Then, the magnetic material is adsorbed to the surface of the drum 3 for the third time and is transferred to the cover plate as the drum 3 rotates, while the non-magnetic material falls into the tailings pipe 14 and is transmitted to the tailings tank. The magnetic material is transferred to the cover plate and is washed into the concentrate tank by water due to the weakening of the magnetic induction intensity, thereby achieving the purpose of extracting high-concentration refined iron powder.

[0120] In the present application, the three-layer structure is used for transmission, so that the coarse ore slurry is in a turbulent state for many times, and the coarse ore slurry is fully mixed, which effectively prevents the magnetic particles from settling to the bottom and improves the accuracy of magnetic separation.

[0121] Example 12:

[0122] By rotating the first rotating shaft of the magnetic field assembly, the distance between the magnetic field assembly and the drum wall is changed.

[0123] When magnetically separating different raw materials, the magnetic field strength required to extract the same grade of material varies due to the different components in the raw materials. Fixed-parameter processes have limited contribution to improving the grade and quality of valuable resources. Therefore, this application achieves precise adjustment of the magnetic field by adjusting the distance between the magnetic field assembly and the drum. This reduces the risk of adjusting high currents and saves energy without reducing the accuracy of magnetic separation.

[0124] In the description of the embodiments of the present invention, it needs to be understood that terms such as "up", "down", "front", "back", "left", "right", "bottom", "bottom", "inside", and "outside" indicate directions or positional relationships.

[0125] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0126] In the description of the embodiments of the present invention, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0127] In the description of the embodiments of the present invention, it should be understood that “-” represents a range between two values, and the range includes the endpoints. For example, “AB” represents a range greater than or equal to A and less than or equal to B.

[0128] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A system for extracting high-purity resource materials from red mud, characterized in that: include, Working tank, magnetic field assembly, roller; The magnetic field assembly is located inside the drum, and the drum can rotate along a fixed axis in the working groove. The magnetic field assembly does not rotate with the drum, and the magnetic field assembly is used to provide a magnetic field; Among them, the cross section of the drum shows that the bottom of the working tank has three concave structures, namely the first layer structure, the second layer structure and the third layer structure from bottom to top. The first layer structure, the second layer structure and the third layer structure are connected in an S shape. One end of the first layer structure is the feed port, and the first layer structure has a water outlet. The third layer structure is connected to the tailings pipeline. Among them, a scraper is provided at the end opposite to the feed port, the highest end of the scraper is close to the drum, and the faucet above the scraper faces the surface of the drum.

2. The system for extracting high-purity resource materials from red mud according to claim 1, characterized in that: A first partition is provided at the connection point between the first layer structure and the second layer structure; and a protrusion is provided at a position of the first layer structure close to the first partition.

3. The system for extracting high-purity resource materials from red mud according to claim 2, characterized in that: The distance in the axial direction of the drum represents the length, and the length of the first channel connecting the second layer structure and the third layer structure is shorter than the length of the second layer structure.

4. The system for extracting high-purity resource materials from red mud according to claim 3, characterized in that: Having an adjustment component; Wherein, the adjustment component is used to adjust the distance between the magnetic field component and the drum wall.

5. The system for extracting high-purity resource materials from red mud according to claim 4, characterized in that: The first rotating shaft of the magnetic field assembly is sleeved with the second rotating shaft of the drum via a bearing; The magnetic field component has a magnet, and the adjustment component includes a threaded structure and a connecting piece. The threaded structure is fixed on the first rotating shaft, and the diameter of the threaded structure changes evenly. The connecting piece is used to connect the magnet and the threaded structure, and the connecting piece and the threaded structure are used in conjunction with each other.

6. The system for extracting high-purity resource materials from red mud according to claim 5, characterized in that: The end face of the first rotating shaft is provided with an indicator line, and the outside of the bearing is provided with a scale line, and the indicator line and the scale line are used in conjunction with each other.

7. The system for extracting high-purity resource materials from red mud according to claim 6, characterized in that: The magnets of the magnetic field assembly are permanent magnets.

8. The system for extracting high-purity resource materials from red mud according to claim 7, characterized in that: An angle sensor is installed on the driven end of the first rotating shaft, a detection end of the angle sensor is fixedly connected to the first rotating shaft, and a body of the angle sensor is fixedly connected to the working groove.

9. A method for extracting high-purity resource materials from red mud, comprising the system for extracting high-purity resource materials from red mud according to claim 8, characterized in that: Specifically include the following steps: S1: energize the motor to start the drum rotating; S2: Turn on the faucet and spray water toward the drum wall; S3: The slurry is fed into the feed port, and water is transported to the feed port through the water outlet; S4: Collect tailings in the tailings trough and collect concentrate in the concentrate trough.

10. The method for extracting high-purity resource materials from red mud according to claim 9, characterized in that: By rotating the first rotating shaft of the magnetic field assembly, the distance between the magnetic field assembly and the drum wall is changed.

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