Rare earth concentrate product mixing system
By using a dispersing plate and a receiving plate in the rare earth concentrate mixing system, the mixing is carried out by utilizing the material's own gravity and flow characteristics, which solves the problems of high energy consumption and dust, and achieves low-energy and high-efficiency mixing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-04-07
AI Technical Summary
The existing methods for mixing rare earth concentrate products are energy-intensive and generate a large amount of dust, which affects production costs and the health of operators.
The system employs a mixing device and a quantitative feeding device, utilizing the design of a dispersing plate and a receiving plate to mix materials based on their own gravity and flow characteristics, thereby reducing the use of high-energy-consuming drive devices.
It reduced production energy consumption, decreased dust generation, lowered production costs, and improved the working environment.
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Figure CN224086635U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of rare earth production equipment, in particular to a rare earth concentrate product mixing system. BACKGROUND
[0002] The rare earth concentrate is a mineral raw material rich in rare earth elements and is widely used in the fields of electronics, new energy and chemical industry. Due to the uneven distribution of rare earth elements in natural ores, the rare earth concentrate products mined are often of different grades. In order to meet the requirements of industrial production on the stability of the quality of the rare earth concentrate, the rare earth concentrate products of different grades need to be mixed to achieve a uniform and consistent quality standard, so as to ensure the stability of the downstream production process and the product quality.
[0003] At present, the mixing of the rare earth concentrate products mainly adopts the following method: the rare earth concentrate products of different grades are all conveyed into a mixer, and then a stirrer in the mixer is used to stir and mix the materials. However, this mixing method has the following disadvantages: first, the high-speed operation of the stirrer leads to high energy consumption, which increases the production cost; second, a large amount of dust is easily generated in the stirring process, which not only pollutes the working environment but also causes potential harm to the health of the operators. CONTENT OF THE INVENTION
[0004] The application aims to provide a rare earth concentrate product mixing system to solve the problem of high energy consumption of the existing mixing method.
[0005] The application adopts the technical scheme to solve the technical problem:
[0006] A rare earth concentrate product mixing system, comprising a mixing device and at least two quantitative feeding devices, wherein the mixing device comprises a mixing box in communication with the discharge ends of the at least two quantitative feeding devices at the top, and a mixing assembly is arranged in the mixing box, and the mixing assembly comprises a dispersion plate and a receiving plate arranged at intervals from top to bottom.
[0007] The dispersion plate is a convex arch structure gradually protruding upward from the edge to the center, and has a mixing gap between the edge and the inner wall of the mixing box; and the receiving plate is a concave arch structure gradually recessed downward from the edge to the center, and the edge is in close contact with the inner wall of the mixing box, and the center is provided with a discharge hole.
[0008] Further, at least two mixing assemblies are arranged at intervals from top to bottom in the mixing box.
[0009] Further, the mixing box comprises a mixing cylinder arranged vertically, and the upper end of the mixing cylinder is in communication with the discharge ends of the at least two quantitative feeding devices.
[0010] Furthermore, the mixing tank also includes a top plate installed at the upper end of the mixing cylinder and a bottom plate installed at the lower end of the mixing cylinder. The top plate is provided with a feed inlet, which is connected to the discharge ends of at least two of the quantitative feeding devices. The bottom plate is provided with a discharge outlet.
[0011] Furthermore, both the surface of the dispersing plate and the surface of the receiving plate are spherical.
[0012] Furthermore, the quantitative feeding device includes a feeding hopper and a quantitative feeding mechanism. The discharge end at the bottom of the feeding hopper is connected to the inlet end of the quantitative feeding mechanism, and the discharge end of the quantitative feeding mechanism is connected to the top of the mixing box.
[0013] Furthermore, a pneumatic valve is provided at the discharge end of the bottom of the feeding hopper.
[0014] Furthermore, the pneumatic valve is linked to the quantitative feeding mechanism for control.
[0015] Furthermore, the quantitative feeding mechanism includes a screw conveyor.
[0016] Furthermore, the feed hopper is equipped with a level monitoring device.
[0017] The beneficial effects of this application are:
[0018] The rare earth concentrate mixing system provided in this application embodiment, by setting at least two quantitative feeding devices, can accurately add rare earth concentrate products of different grades to the mixing device in a set proportion according to different production needs. By setting the mixing device as a mixing box and the mixing components inside it, and setting the mixing components as a dispersing plate and a receiving plate, the mixing can be achieved by utilizing the material's own gravity and flow characteristics as it flows on the surface of the dispersing plate and the receiving plate. In the entire mixing process, no additional high-energy-consuming drive device is required, which effectively reduces energy consumption in the production process and lowers production costs. At the same time, it reduces the violent collision and lifting of materials, effectively reduces dust generation, improves the working environment, and reduces the harm to the health of operators. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the structure of the rare earth concentrate mixing system provided in the embodiments of this application;
[0021] Figure 2 This is another structural schematic diagram of the rare earth concentrate product mixing system provided in the embodiments of this application;
[0022] Figure 3 This is a schematic diagram of the mixing device.
[0023] Figure label:
[0024] 1-Mixing device;
[0025] 11-Mixing box; 111-Mixing cylinder; 112-Top plate; 1121-Inlet; 113-Bottom plate; 1131-Outlet; 12-Mixing assembly; 121-Dispersion plate; 1211-Mixing gap; 122-Receiving plate; 1221-Outlet; 13-Dispersion plate connecting rod; 14-Receiving plate connecting rod;
[0026] 2-Quantitative feeding device;
[0027] 21-Feeding hopper; 22-Quantitative feeding mechanism; 23-Pneumatic valve; 24-Level monitoring device. Detailed Implementation
[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.
[0029] In the description of this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Unless otherwise specified, the above-mentioned orientational descriptions can be flexibly set in actual application, provided that the relative positional relationships shown in the accompanying drawings are satisfied.
[0030] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] See Figure 1 This application provides a rare earth concentrate product mixing system, including a mixing device 1 and at least two quantitative feeding devices 2. The mixing device 1 includes a mixing box 11 whose top is connected to the discharge end of the at least two quantitative feeding devices 2. The mixing box 11 is provided with a mixing assembly 12. The mixing assembly 12 includes a dispersing plate 121 and a receiving plate 122 arranged at intervals from top to bottom. The dispersing plate 121 is a convex arch structure that gradually protrudes upward from the edge to the center, and its edge has a mixing gap 1211 between it and the inner wall of the mixing box 11. The receiving plate 122 is a concave arch structure that gradually recesses downward from the edge to the center, and its edge is in close contact with the inner wall of the mixing box 11. Its center is provided with a discharge hole 1221.
[0032] The quantitative feeding device 2 is used to quantitatively add rare earth concentrate products into the mixing device 1. By setting at least two quantitative feeding devices 2, at least two different grades of rare earth concentrate products can be accurately added to the mixing device 1 in a set ratio according to different production needs for mixing.
[0033] The mixing device 1 mainly includes a mixing box 11 and a mixing assembly 12. The mixing assembly 12 includes a dispersing plate 121 and a receiving plate 122. The top of the inner cavity of the mixing box 11 is connected to the discharge end of at least two quantitative feeding devices 2, and is used to receive at least two different grades of rare earth concentrate products.
[0034] The dispersing plate 121 is fixed inside the mixing box 11. By setting the dispersing plate 121 as a convex arch structure that gradually bulges upward from the edge to the center, when rare earth concentrate products of different grades fall onto the dispersing plate 121, the rare earth concentrate products can naturally disperse on the surface of the dispersing plate 121 and flow in all directions. In this process, rare earth concentrate products of different grades are mixed together during the dispersion and flow. By setting a mixing gap 1211 between the edge of the dispersing plate 121 and the inner wall of the mixing box 11, the mixed rare earth concentrate products can be sprinkled down from the mixing gap 1211 onto the receiving plate 122.
[0035] The receiving plate 122 is fixed inside the mixing box 11 and arranged below the dispersing plate 121. By keeping the edge of the receiving plate 122 in close contact with the inner wall of the mixing box 11, the rare earth concentrate product is prevented from falling between the edge of the receiving plate 122 and the inner wall of the mixing box 11. By setting the receiving plate 122 as a concave arch structure that gradually sinks downward from the edge to the center, when the rare earth concentrate product falls on the receiving plate 122, the rare earth concentrate product can converge towards the center on the surface of the receiving plate 122. During this process, rare earth concentrate products of different grades are mixed again during the flow. The mixed rare earth concentrate product is discharged from the discharge hole 1221 in the center of the receiving plate 122.
[0036] The rare earth concentrate mixing system provided in this application embodiment, by setting the mixing device 1 as a mixing box 11 and the mixing component 12 therein, and setting the mixing component 12 as a dispersing plate 121 and a receiving plate 122, can achieve mixing by utilizing the material's own gravity and flow characteristics, and achieving mixing during the flow on the surface of the dispersing plate 121 and the receiving plate 122; in the entire mixing process, no additional high-energy-consuming drive device is required, which effectively reduces energy consumption in the production process and lowers production costs; at the same time, it reduces the violent collision and lifting of materials, effectively reduces dust generation, improves the working environment, and reduces the harm to the health of operators.
[0037] In some embodiments, see Figure 2 , Figure 3 At least two mixing components 12 are arranged at intervals from top to bottom within the mixing tank 11. Accordingly, by providing at least two mixing components 12, rare earth concentrate products of different grades undergo multiple dispersions and redistributions within the mixing tank 11, further improving the mixing quality between rare earth concentrate products of different grades. For example, three mixing components 12 are arranged at intervals from top to bottom within the mixing tank 11.
[0038] In some embodiments, see Figure 2 , Figure 3 The mixing tank 11 includes a vertically arranged mixing cylinder 111, the upper end of which is connected to the discharge end of at least two quantitative feeding devices 2.
[0039] Specifically, the mixing cylinder 111 is a vertically arranged cylindrical structure with an inlet at its upper end, which connects to the outlet of at least two quantitative feeding devices 2, and an outlet at its lower end. The dispersing plate 121 is fixedly connected to the mixing cylinder 111 via a dispersing plate connecting rod 13, and the receiving plate 122 is fixedly connected to the mixing cylinder 111 via a receiving plate connecting rod 14. The projections of the dispersing plate 121 and the receiving plate 122 on the horizontal plane are circular. The mixing gap 1211 between the edge of the dispersing plate 121 and the inner wall of the mixing cylinder 111 has the same dimension at all positions.
[0040] In some embodiments, see Figure 2 , Figure 3 The mixing tank 11 also includes a top plate 112 installed at the upper end of the mixing cylinder 111 and a bottom plate 113 installed at the lower end of the mixing cylinder 111. The top plate 112 is provided with a feed inlet 1121, which is connected to the discharge end of at least two quantitative feeding devices 2. The bottom plate 113 is provided with a discharge outlet 1131.
[0041] Specifically, the top plate 112 can have one inlet 1121, and the outlets of at least two quantitative feeding devices 2 are simultaneously connected to one inlet 1121. Alternatively, the top plate 1122 can have at least two inlets 1121, with the number of inlets 1121 equal to and corresponding one-to-one with the number of quantitative feeding devices 2, and the outlet of each quantitative feeding device 2 connected to its corresponding inlet 1121. The outlet 1131 on the bottom plate 113 is connected to the outlet hole 1221 on the lowest receiving plate 122. Of course, in some embodiments, the lowest receiving plate 122 can also serve as the bottom plate 113, and the outlet hole 1221 on the lowest receiving plate 122 can also serve as the outlet 1131.
[0042] In some embodiments, the surfaces of the dispersing plate 121 and the receiving plate 122 are both spherical. Accordingly, by setting the surfaces of the dispersing plate 121 and the receiving plate 122 to spherical, compared with other shaped surfaces, the flow direction of rare earth concentrate products on the dispersing plate 121 and the receiving plate 122 is more diversified, further increasing the mixing effect between rare earth concentrate products of different grades.
[0043] In some embodiments, see Figure 1 , Figure 2 The quantitative feeding device 2 includes a feeding hopper 21 and a quantitative feeding mechanism 22. The discharge end of the bottom of the feeding hopper 21 is connected to the feed end of the quantitative feeding mechanism 22, and the discharge end of the quantitative feeding mechanism 22 is connected to the top of the mixing tank 11. Accordingly, the feeding hopper 21 is used to store rare earth concentrate products to stably supply materials to the quantitative feeding mechanism 22; the quantitative feeding mechanism 22 is used to quantitatively transport the rare earth concentrate products in the feeding hopper 21 to the mixing tank 11. The quantitative feeding mechanism 22 may include a screw conveyor or a belt conveyor.
[0044] For example, see Figure 1 , Figure 2A pneumatic valve 23 is installed at the discharge end of the feed hopper 21. Correspondingly, the pneumatic valve 23 controls the amount of rare earth concentrate product falling into the quantitative feeding mechanism 22 from the feed hopper 21, preventing the quantitative feeding mechanism 22 from being overloaded during operation. The pneumatic valve 23 and the quantitative feeding mechanism 22 can be controlled in conjunction, and this linkage control can be integrated and managed through a central control system, improving the automation level of production and reducing manual intervention. Of course, the pneumatic valve 23 and the quantitative feeding mechanism 22 can also be controlled independently; no specific limitations are made here.
[0045] In some embodiments, see Figure 1 , Figure 2 A level monitoring device 24 may be installed inside the feed hopper 21. The level monitoring device 24 can monitor the material height or material quantity in the feed hopper 21 in real time, so that the operator can know the material inventory in the feed hopper 21 at any time, and can replenish the material in the feed hopper 21 in a timely manner to ensure the continuity of material supply.
[0046] For example, two level monitoring devices 24 are provided at intervals from top to bottom inside the feed hopper 21. Accordingly, the upper level monitoring device 24 monitors the high level; when the material reaches this position, it indicates that the feed hopper 21 is nearing full capacity. The lower level monitoring device 24 monitors the low level; when the material drops to this position, it indicates that the feed hopper 21 needs to be replenished. By simultaneously monitoring both the high and low levels, both extreme situations of material overflow and material shortage can be effectively avoided.
[0047] See Figure 2 , Figure 3 The mixing process of the rare earth concentrate mixing system provided in this application embodiment is as follows:
[0048] S1. Store two different grades of rare earth concentrate products in two feed hoppers 21 respectively, open two pneumatic valves 23, start two quantitative feeding mechanisms 22, and continuously feed the rare earth concentrate products in the two feed hoppers 21 into the mixing box 11 according to the set ratio.
[0049] S2. When two different grades of rare earth concentrate products fall onto the first dispersion plate 121, the rare earth concentrate products naturally disperse on the surface of the first dispersion plate 121 and flow outwards, mixing together during the flow. After the mixed rare earth concentrate products fall downwards from the first mixing gap 1211 onto the first receiving plate 122, the rare earth concentrate products flow downwards on the surface of the first receiving plate 122 and converge towards the center, mixing together again during the flow. After the mixed rare earth concentrate products fall downwards from the discharge hole 1221 of the first receiving plate 122 onto the second dispersion plate 121.
[0050] S3. After the rare earth concentrate product falls onto the second dispersing plate 121, the rare earth concentrate product naturally disperses on the surface of the second dispersing plate 121 and flows outwards, mixing together during the flow. After the mixed rare earth concentrate product falls downwards from the second mixing gap 1211 onto the second receiving plate 122, the rare earth concentrate product flows downwards on the surface of the second receiving plate 122 and converges towards the center, mixing together again during the flow. After the mixed rare earth concentrate product falls downwards from the discharge hole 1221 of the second receiving plate 122 onto the third dispersing plate 121.
[0051] S4. When the rare earth concentrate product falls onto the third dispersing plate 121, the rare earth concentrate product naturally disperses on the surface of the third dispersing plate 121 and flows to the surroundings, and mixes together during the flow. After the mixed rare earth concentrate product falls down from the third mixing gap 1211 onto the third receiving plate 122, the rare earth concentrate product flows down on the surface of the third receiving plate 122 and converges towards the center, and mixes together again during the flow. After the mixed rare earth concentrate product flows down from the discharge hole 1221 of the third receiving plate 122 and is discharged from the discharge port 1131 of the bottom plate 113.
[0052] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.
Claims
1. A rare earth concentrate mixing system, characterized in that, It includes a mixing device (1) and at least two quantitative feeding devices (2). The mixing device (1) includes a mixing box (11) whose top is connected to the discharge end of the at least two quantitative feeding devices (2). The mixing box (11) is provided with a mixing assembly (12). The mixing assembly (12) includes a dispersing plate (121) and a receiving plate (122) arranged from top to bottom. The dispersing plate (121) is a convex arch structure that gradually bulges upward from the edge to the center, and there is a mixing gap (1211) between its edge and the inner wall of the mixing box (11); the receiving plate (122) is a concave arch structure that gradually bulges downward from the edge to the center, and its edge is close to the inner wall of the mixing box (11), and there is a discharge hole (1221) in its center.
2. The rare earth concentrate mixing system according to claim 1, characterized in that, At least two mixing components (12) are arranged at intervals from top to bottom inside the mixing tank (11).
3. The rare earth concentrate mixing system according to claim 1 or 2, characterized in that, The mixing tank (11) includes a vertically arranged mixing cylinder (111), the upper end of which is connected to the discharge end of at least two of the quantitative feeding devices (2).
4. The rare earth concentrate mixing system according to claim 3, characterized in that, The mixing tank (11) also includes a top plate (112) installed on the upper end of the mixing cylinder (111) and a bottom plate (113) installed on the lower end of the mixing cylinder (111). The top plate (112) is provided with a feed inlet (1121), which is connected to the discharge end of at least two of the quantitative feeding devices (2). The bottom plate (113) is provided with a discharge outlet (1131).
5. The rare earth concentrate mixing system according to claim 1, characterized in that, The surfaces of the dispersing plate (121) and the receiving plate (122) are both spherical.
6. The rare earth concentrate mixing system according to claim 1, characterized in that, The quantitative feeding device (2) includes a feeding hopper (21) and a quantitative feeding mechanism (22). The discharge end of the bottom of the feeding hopper (21) is connected to the feed end of the quantitative feeding mechanism (22), and the discharge end of the quantitative feeding mechanism (22) is connected to the top of the mixing box (11).
7. The rare earth concentrate mixing system according to claim 6, characterized in that, The discharge end at the bottom of the feed hopper (21) is equipped with a pneumatic valve (23).
8. The rare earth concentrate mixing system according to claim 7, characterized in that, The pneumatic valve (23) is linked to the quantitative feeding mechanism (22) for control.
9. The rare earth concentrate mixing system according to claim 6, 7 or 8, characterized in that, The quantitative feeding mechanism (22) includes a screw conveyor.
10. The rare earth concentrate mixing system according to claim 6, 7 or 8, characterized in that, The feeding hopper (21) is equipped with a level monitoring device (24).