Quantitative feeding device of rare earth molten salt electrolytic furnace

Abstract

The utility model relates to the technical field of rare earth molten salt electrolysis equipment, in particular to a rare earth molten salt electrolysis furnace quantitative feeding device which comprises a rack, the rack is provided with a spiral feeder and a storage hopper in a fixed structure mode, and a discharging opening of the storage hopper communicates with a feeding opening of the spiral feeder. Conveying, weighing metering and quantitative control are conducted on materials through the spiral feeder, operation is reliable, and the control precision is high; the rack is further provided with a fixed seat in a fixed structure mode, and the fixed seat is provided with a movable arm and a first power mechanism used for driving the movable arm to telescopically slide on the fixed seat in a telescopic sliding structure mode; and a container is arranged on one side of the front section of the moving arm in a rotating structure mode, and a second power mechanism used for driving the container to rotate for discharging is further arranged. The material container loaded with the materials is pushed to the feeding port of the electrolytic bath through the moving arm, the materials in the material container are poured into the electrolytic bath through the second power mechanism, the influence of high temperature on parts is reduced, and the durability of the parts is improved.

Description

Technical fields:

[0001] This application relates to the field of rare earth molten salt electrolysis equipment technology, and in particular to a quantitative feeding device for a rare earth molten salt electrolysis furnace. Background technology:

[0002] Molten salt electrochemistry refers to the use of high-temperature molten salts as ionic conductors, which have a wide electrochemical window and rapid reaction kinetics at high temperatures. Therefore, molten salts are ideal electrolytes for electrochemical metallurgy, with the aluminum electrolysis industry being a successful example. Furthermore, molten salt electrolysis is also frequently used to produce alkali metals, alkaline earth metals, and low-melting-point light rare earth metals.

[0003] Chinese utility model patent application number 202122869128.X – An intelligent rare earth electrolysis furnace feeder – includes: a hopper frame, a weighing device, a feeding device, a storage hopper, an electric valve, a sensor mounting bracket, and a sensor assembly. The weighing device is installed inside the hopper frame. The feeding device is fixed to the metering section of the weighing device, and a feeding port and a discharging port are respectively provided at the bottom. The discharging port passes through the hopper frame and communicates with the feeding port of the feeding device. The electric valve is located at the discharging port of the storage hopper. The sensor mounting bracket is located at the feeding port of the storage hopper and fixes the sensor assembly. The sensor contacts of the sensor assembly pass through the inner cavity of the storage hopper. It can automatically adjust the feeding speed and the weight of the feeding, resulting in more uniform feeding, higher accuracy, and a high degree of intelligence. It reduces manual intervention, lowers labor intensity, and saves labor costs.

[0004] This patent uses a screw propeller to push materials into a feeding chute for feeding into an electrolytic cell. However, the temperature at the feeding port of the electrolytic cell is high, and the chute is always located at the feeding port, which affects its service life and hinders operation when replacing the cathode rod. Utility Model Content:

[0005] To solve the above-mentioned technical problems, this utility model provides a quantitative feeding device for a rare earth molten salt electrolysis furnace. The technical problem it solves is that the chute being constantly located at the feed inlet affects its service life and hinders operation when replacing the cathode rod. The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A quantitative feeding device for a rare earth molten salt electrolysis furnace includes:

[0007] The frame is fixedly equipped with a screw feeder and a storage hopper, and the discharge port of the storage hopper is connected to the feed port of the screw feeder.

[0008] The mounting base is connected to the frame in a fixed structure.

[0009] The movable arm is connected to the fixed base via a telescopic sliding structure.

[0010] The first power mechanism is used to drive the movable arm to extend and slide on the fixed base;

[0011] The material container is mounted on one side of the moving arm via a rotating structure.

[0012] The second power mechanism is used to drive the material container to rotate and unload materials.

[0013] Furthermore, both the fixed base and the movable arm are designed with a hollow cylindrical structure, with the movable arm fitted inside the fixed base;

[0014] The first power mechanism is a hydraulic cylinder or a pneumatic cylinder, with both ends of the hydraulic cylinder or pneumatic cylinder connected to a fixed base and a movable arm, respectively, to drive the movable arm to extend and retract.

[0015] Furthermore, the second power mechanism is a motor, which is fixedly mounted on one side of the moving arm, and the motor output shaft is fixedly connected to the material container.

[0016] Furthermore, the second power mechanism includes a guide groove formed in the moving arm, in which a first shaft and a second shaft are arranged at intervals in a sliding structure, and one end of each of the first shaft and the second shaft is connected to the feed container.

[0017] The second axis is equipped with rods in a hinged structure;

[0018] The rod is equipped with a spring, and the two ends of the spring are connected to the rod and the moving arm respectively in a fixed structure.

[0019] Furthermore, an outer baffle is fixedly installed on the outside of the movable arm, and an inner baffle is installed inside the fixed base to block the outer baffle.

[0020] Furthermore, a fixing block is provided inside the movable arm through a fixed structure. The fixing block has a through hole, and the through hole is connected to the rod in a sliding structure.

[0021] A slider is also installed inside the through hole, and the slider is connected to the output shaft of the oil cylinder or air cylinder in a fixed structure.

[0022] A retaining ring is provided on the side of the through hole near the oil cylinder or air cylinder to block the slider.

[0023] Furthermore, the guide groove includes a horizontal section and an arc-shaped section that are connected, with the end of the arc-shaped section away from the horizontal section located below the horizontal section.

[0024] The beneficial effects of this utility model are: by setting up a screw feeder to transport, weigh, and quantitatively control materials, the operation is reliable and the control accuracy is high. The moving arm pushes the container carrying the material to the feed inlet of the electrolytic cell, and the power structure is used to pour the material in the container into the electrolytic cell, which improves the level of automation, reduces the impact of high temperature on the parts, and improves the service life of the parts. Attached image description:

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This is a three-dimensional structural diagram of the fixed base, movable arm, and material container of this utility model.

[0027] Figure 3 This is a schematic cross-sectional view of the retracted state of the mobile arm of this utility model.

[0028] Figure 4 This is a schematic diagram of the unloading section of the material container in the extended state of the mobile arm of this utility model.

[0029] In the picture:

[0030] 1. Frame, 2. Screw feeder, 3. Storage hopper, 4. Fixed base, 5. Moving arm, 6. Container, 7. Hydraulic cylinder or pneumatic cylinder, 8. Guide groove, 81. Horizontal section, 82. Arc section, 9. First shaft, 10. Second shaft, 11. Rod, 12. Spring, 13. Outer baffle, 14. Inner baffle, 15. Fixed block, 16. Sliding block, 17. Retaining ring. Detailed implementation method:

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows:

[0032] A quantitative feeding device for a rare earth molten salt electrolysis furnace includes a frame 1. The frame 1 is fixedly equipped with a screw feeder 2 and a storage hopper 3. The discharge port of the storage hopper 3 is connected to the inlet of the screw feeder 2. The screw feeder is used for material conveying, weighing, and quantitative control, ensuring reliable operation and high control accuracy. The frame 1 also has a fixed base 4, which has a sliding arm 5 mounted on it. A first power mechanism drives the sliding arm 5 to extend and retract within the fixed base 4. A container 6 is mounted on one side of the front of the sliding arm 5, and a second power mechanism drives the container 6 to rotate and unload material. The sliding arm 5 pushes the container 6, carrying material, to the inlet of the electrolysis cell. The second power mechanism then pours the material from the container 6 into the electrolysis cell, reducing the impact of high temperatures on components and improving their durability.

[0033] Specifically, both the fixed base 4 and the movable arm 5 are hollow cylindrical structures. The movable arm 5 is sleeved inside the fixed base 4 to improve structural stability. The first power mechanism is a hydraulic cylinder or air cylinder 7 installed inside the fixed base 4. The two ends of the hydraulic cylinder or air cylinder 7 are connected to the fixed base 4 and the movable arm 5 respectively to drive the movable arm 5 to extend and retract. The hydraulic cylinder or air cylinder 7 in this patent can be replaced by linear power components such as hydraulic cylinders in the prior art.

[0034] Based on the above embodiments, in this embodiment the second power mechanism is set as a motor. The motor is connected to the moving arm 5 in a fixed structure, and the motor output shaft is connected to the material container 6 in a fixed structure. This structure design is simple.

[0035] In another embodiment, the second power mechanism includes a guide groove 8 formed in the movable arm 5. A first shaft 9 and a second shaft 10 are arranged at intervals in the guide groove 8 in a sliding structure. One end of the first shaft 9 and the second shaft 10 are both connected to the container 6 in a fixed structure. The second shaft 10 is provided with a rod 11 in a hinged structure. A spring 12 is sleeved on the rod 11. Both ends of the spring 12 are connected to the rod 11 and the movable arm 5 in a fixed structure, respectively.

[0036] It should be noted that the movable arm 5 is provided with an outer baffle 13 in a fixed structure, and the fixed base 4 is provided with an inner baffle 14 to block the outer baffle 13. The cooperation between the outer baffle 13 and the inner baffle 14 means that when the hydraulic cylinder or air cylinder 7 pushes the rod 11, the rod 11 drives the movable arm 5 to move through the spring 12. At this time, the friction force is not enough to deform the spring 12, that is, the spring 12 does not deform. When the front end of the movable arm 5 extends to the feed port, the movable arm 5 stops extending. At this time, the output shaft of the hydraulic cylinder or air cylinder 7 continues to extend, pushing the rod 11 to deform the spring 12. The rod 11 pushes the feed container 6 and the first shaft 9 forward through the first shaft 9 until the second shaft 10 moves downward along the guide groove 8, causing the front end of the feed container 6 to flip and unload. When the movable arm 5 retracts, the spring 12 returns to its original state, and then the rod 11 pulls the first shaft 9 and the feed container 6 to retract. This structural design utilizes a hydraulic or pneumatic cylinder 7 to power the movement of the moving arm 5 and the unloading of the feed container 6. It ensures that the feed container only begins unloading when the moving arm 5 extends to the electrolytic cell inlet. During retraction, the feed container 6 is also reset by the spring 12, facilitating the next cycle of material receiving. This mechanical structure design replaces electric motors or rotary motors, preventing the reduction in mechanical performance and lifespan of electric motors or rotary motors operating at high temperatures for extended periods, and improving the stability of the device in high-temperature environments.

[0037] It should be noted that a fixing block 15 is installed inside the movable arm 5 through a fixed structure. The fixing block 15 has a through hole, which is connected to the rod 11 in a sliding structure. A slider 16 is also installed inside the through hole, and the slider 16 is connected to the output shaft of the hydraulic cylinder or air cylinder 7 in a fixed structure. A retaining ring 17 is provided on the side of the through hole near the hydraulic cylinder or air cylinder 7 to block the slider 16. With the setting of the retaining ring 17, when the movable arm 5 retracts, the output shaft of the hydraulic cylinder or air cylinder 7 pulls the retaining ring 17 through the slider 16, thereby pulling the movable arm 5 and the container 6 to retract. This avoids the tension of the rod 11 on the container 6 being concentrated on the first shaft 9 during long-term operation, which would cause mechanical damage to the first shaft 9.

[0038] Specifically, the guide groove 8 includes a horizontal section 81 and an arc-shaped section 82 that are connected. The end of the arc-shaped section 82 away from the horizontal section 81 is located at the lower part of the horizontal section 81. That is, when conveying materials and retracting, the first shaft 9 and the second shaft 10 are in the horizontal section 81, and when unloading materials, the second shaft 10 is in the arc-shaped section 82.

[0039] The working principle and process of this utility model are as follows:

[0040] After inputting the feeding weight parameters, the electric valve of the screw feeder 2 is opened, and the material in the storage hopper 3 is pushed out by the screw feeder 2 and falls into the container 6. At this time, the hydraulic cylinder or air cylinder 7 is started. The output shaft of the hydraulic cylinder or air cylinder 7 pushes the rod 11. The rod 11 drives the moving arm 5 to move to the right through the spring 12. It should be noted that the spring 12 is not deformed at this time. When the outer baffle 13 contacts the inner baffle 14, the front end of the moving arm 5 is located above the feed inlet, and the moving arm 5 no longer extends.

[0041] The output shaft of the hydraulic cylinder or pneumatic cylinder 7 continues to extend, pushing the rod 11 to deform the spring 12. The rod 11 pushes the feeder 6 and the first shaft 9 forward through the first shaft 9 until the second shaft 10 moves downward along the arc section 82 of the guide groove 8, causing the front end of the feeder 6 to flip and unload.

[0042] When the output shaft of the hydraulic cylinder or pneumatic cylinder 7 retracts, the output shaft of the hydraulic cylinder or pneumatic cylinder 7 pulls the retaining ring 17 through the slider 16, which in turn pulls the moving arm 5 to retract. At the same time, the rod 11 is pulled to the left by the spring 12, which in turn pulls the first shaft 9, the feeder 6 and the second shaft 10 to the left until the first shaft 9 and the second shaft 10 are in the horizontal section 81 and the feeder 6 is in a horizontal state, until it is located at the discharge port of the screw feeder 2, completing one cycle.

[0043] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model 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, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A quantitative feeding device for a rare earth molten salt electrolysis furnace, characterized in that, include: The frame (1) is equipped with a screw feeder (2) and a storage hopper (3) in a fixed structure. The discharge port of the storage hopper (3) is connected to the feed port of the screw feeder (2). The fixed base (4) is connected to the frame (1) in a fixed structure manner; The movable arm (5) is connected to the fixed base (4) by a telescopic sliding structure. The first power mechanism is used to drive the movable arm (5) to extend and slide on the fixed base (4); The material container (6) is mounted on one side of the moving arm (5) via a rotating structure. The second power mechanism is used to drive the material container (6) to rotate and unload materials.

2. The quantitative feeding device for a rare earth molten salt electrolysis furnace according to claim 1, characterized in that: Both the fixed base (4) and the movable arm (5) are hollow cylindrical structures, and the movable arm (5) is sleeved inside the fixed base (4); The first power mechanism is a hydraulic cylinder or a pneumatic cylinder (7), with both ends of the hydraulic cylinder or pneumatic cylinder (7) connected to the fixed base (4) and the movable arm (5) respectively to drive the movable arm (5) to extend and retract.

3. The quantitative feeding device for a rare earth molten salt electrolysis furnace according to claim 2, characterized in that: The second power mechanism is a motor, which is fixedly mounted on one side of the moving arm (5), and the motor output shaft is fixedly connected to the material container (6).

4. The quantitative feeding device for a rare earth molten salt electrolysis furnace according to claim 2, characterized in that: The second power mechanism includes a guide groove (8) opened in the moving arm (5). A first shaft (9) and a second shaft are arranged in the guide groove (8) in a sliding structure. One end of the first shaft (9) and the second shaft are connected to the container (6). The second axis is equipped with a rod (11) in a hinged structure; The rod (11) is equipped with a spring, and the two ends of the spring are connected to the rod (11) and the moving arm (5) in a fixed structure.

5. The quantitative feeding device for a rare earth molten salt electrolysis furnace according to claim 4, characterized in that: The movable arm (5) is provided with an outer baffle in a fixed structure, and the fixed base (4) is provided with an inner baffle to block the outer baffle.

6. The quantitative feeding device for a rare earth molten salt electrolysis furnace according to claim 5, characterized in that: The movable arm (5) has a fixed block inside by means of a fixed structure. The fixed block has a through hole, and the through hole is connected to the rod (11) by means of a sliding structure. A slider is also provided inside the through hole, and the slider is connected to the output shaft of the oil cylinder or air cylinder (7) in a fixed structure manner; A retaining ring is provided on the side of the through hole near the oil cylinder or air cylinder (7) to block the slider.

7. The quantitative feeding device for a rare earth molten salt electrolysis furnace according to claim 4, characterized in that: The guide groove (8) includes a horizontal section and an arc section that are connected, with the end of the arc section away from the horizontal section located at the bottom of the horizontal section.

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