A set of nickel sulfate drying system for battery
By combining a feeding platform, a fluidized bed dryer, and a vibrating screen, the high energy consumption and dust leakage problems of existing nickel sulfate drying processes are solved, achieving efficient and low-pollution nickel sulfate drying, which is suitable for battery production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HULUDAO XINHENGTAI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-03-18
- Publication Date
- 2026-05-22
Smart Images
Figure CN224266634U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of nickel sulfate drying systems, and in particular to a nickel sulfate drying system for batteries. Background Technology
[0002] Nickel sulfate is a raw material for ternary lithium-ion batteries, nickel-metal hydride batteries, and nickel-cadmium batteries. With the development of industries such as new energy vehicles, the market demand for batteries has increased dramatically. Existing and widely used industrial nickel sulfate drying processes include bellows drying, vibrating bed drying, and rotary drying. Hot air circulating bellows have high energy consumption, low efficiency, low automation, require manual loading and unloading, and pollute the environment; vibrating bed drying is prone to dust leakage and other problems. Utility Model Content
[0003] The purpose of this invention is to provide a nickel sulfate drying system for batteries, which improves the drying efficiency of nickel sulfate.
[0004] This utility model provides a battery nickel sulfate drying system, including a feeding platform, a fluidized bed dryer, and a sealed space. A vibrating screen is installed in the sealed space. A hopper is fixedly installed on the surface of the feeding platform. One end of the hopper is a feed inlet, and the other end is a discharge outlet. The discharge outlet of the hopper is fixedly connected to one end of a discharge valve, which is a star-shaped discharge valve. The other end of the discharge valve is flexibly connected to the feed end of the fluidized bed dryer. The discharge end of the fluidized bed dryer is flexibly connected to the feed end of a magnetic separator. A transport device is fixedly installed between the fluidized bed dryer and the vibrating screen. The discharge end of the magnetic separator is connected to one end of the transport device, and the other end of the transport device is connected to the feed end of the vibrating screen. A storage device is provided at the discharge end of the vibrating screen.
[0005] As a further optimization, the iron remover is surrounded by an outer shell, and multiple sets of drawers A and drawers B are slidably arranged through the outer surface of the outer shell. Magnetic rods are symmetrically fixedly connected to the adjacent side surfaces of drawers A and B and the iron remover. The installation spacing of the two magnetic rods fixedly connected to drawer A is a first spacing, and the installation spacing of the two magnetic rods fixedly connected to drawer B is a second spacing. The first spacing is greater than the second spacing, and drawers A and drawers B are arranged alternately.
[0006] As a further optimization, the vibrating screen is provided with a first screen, a second screen, and a third screen. The first screen, the second screen, and the third screen are evenly installed in the vibrating screen from top to bottom. One end of each of the first screen, the second screen, and the third screen extends out of the vibrating screen. The end of the first screen extending out of the vibrating screen is fixedly provided with a first discharge port. The end of the second screen extending out of the vibrating screen is fixedly provided with a second discharge port. The end of the third screen extending out of the vibrating screen is fixedly connected with a third discharge port. A receiving plate is fixed inside the vibrating screen and located below the third screen. One end of the receiving plate extends out of the vibrating screen and is fixedly provided with a fourth discharge port.
[0007] As a further optimization, the transport device is a screw conveyor.
[0008] As a further optimization, the feeding valve is a star-shaped feeding valve, and the feeding end of the feeding valve is connected to the fluidized bed dryer through a round-and-square pipe. The size of the feeding end of the feeding valve matches that of one end of the round-and-square pipe.
[0009] As a further optimization, the first screen is an 8-mesh screen, the second screen is a 20-mesh screen, and the third screen is a 32-mesh screen.
[0010] As a further optimization, a dust collector is installed inside the enclosed space.
[0011] As a further optimization, the outer casing of the iron remover is provided with multiple slots, and drawers A and B are the same size, with both drawers A and B matching the size of the slots.
[0012] As a further optimization, the connection between the vibrating screen and the conveying device is partially a flexible connection.
[0013] As a further optimization, the feeding platform is made of carbon steel, and the upper surface of the feeding platform is covered with a stainless steel plate.
[0014] This utility model provides an improved nickel sulfate drying system for batteries, which has the following improvements and advantages compared with the prior art:
[0015] Firstly, the other end of the feed valve is flexibly connected to the feed end of the fluidized bed dryer. The star-shaped feed valve controls the amount of raw material fed. The raw material is in powder form and vibrates during the operation of various components. Therefore, feeding the raw material into the fluidized bed dryer through flexible connections such as plastic, canvas or rubber is less likely to result in leakage of powdery raw material compared to rigid connections.
[0016] Secondly, the raw materials obtained from the first and second feeding ports with a particle size between 8 and 20 mesh are used to make the finished product. The raw materials obtained from the third feeding port with a particle size between 20 and 32 mesh are used to make seed crystals. The raw materials obtained from the fourth feeding port with a particle size below 32 mesh are used to make the fabric. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a complete structural schematic diagram of the present invention;
[0019] Figure 2 This is a schematic diagram of the internal structure of the vibrating screen part of this utility model;
[0020] Figure 3 This is a schematic diagram of the internal structure of the iron separator of this utility model;
[0021] Figure 4 This is a top sectional view of drawer A of this utility model;
[0022] Figure 5 This is a top sectional view of drawer A of this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1-Feeding platform; 2-Hopper; 3-Discharge valve; 4-Fluidized bed dryer;
[0025] 5-Magnetic separator; 51-Outer casing; 52-Drawer A; 53-Drawer B; 54-Magnetic rod; 55-Slot;
[0026] 6-Transportation equipment;
[0027] 7-Vibrating screen; 71-First screen; 72-Second screen; 73-Third screen; 74-First discharge port; 75-Second discharge port; 76-Third discharge port; 77-Fourth discharge port; 78-Receiving plate;
[0028] 8- Enclosed space. Detailed Implementation
[0029] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "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 are not intended to 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 of this utility model.
[0031] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0032] Please see Figures 1-5This utility model provides a technical solution: a battery nickel sulfate drying system, including a feeding platform 1, a fluidized bed dryer 4, and a sealed space 8. The feeding platform 1 is used for pre-storing and feeding raw materials. A vibrating screen 7 is installed in the sealed space 8. A hopper 2 is fixedly installed on the surface of the feeding platform 1. One end of the hopper 2 is a feed inlet, and the other end is a discharge outlet. The discharge outlet of the hopper 2 is fixedly connected to one end of a discharge valve 3. The feeding platform 1 feeds raw materials from the feed inlet of the hopper 2. The hopper 2 is hopper-shaped and feeds the materials into the discharge valve 3. The discharge valve 3 is a star-shaped discharge valve. The other end of the discharge valve 3 is flexibly connected to the feed end of the fluidized bed dryer 4. The star-shaped discharge valve 3 controls the amount of raw material fed. The raw material is in powder form and vibrates during the operation of various components. Therefore, the raw material is fed into the fluidized bed dryer through flexible connections such as plastic, canvas, or rubber. Within 4, compared to rigid connections, it is less likely for powdery raw materials to leak out. The raw materials are dried by the fluidized bed dryer 4, during which mechanical vibration promotes material fluidization. The discharge end of the fluidized bed dryer 4 is flexibly connected to the feed end of the iron separator 5. A conveying device 6 is fixedly installed between the fluidized bed dryer 4 and the vibrating screen 7. After fluidization, the raw materials pass through the iron separator 5 to remove metal impurities, ensuring that the iron content in the raw materials is not higher than 0.001% and the magnetic foreign matter (MI) content is not higher than 0.00001%. The iron-removed raw materials are conveyed to the feed end of the vibrating screen 7 through the conveying device 6. The discharge end of the iron separator 5 is connected to one end of the conveying device 6, and the other end of the conveying device 6 is connected to the feed end of the vibrating screen 7. The vibrating screen 7 screens materials of different particle sizes through multiple layers of screens with different meshes, and then performs further processing according to the particle size.
[0033] In some embodiments, the magnetic separator 5 is surrounded by a housing 51. Multiple sets of drawers A52 and drawers B53 are slidably disposed on the outer surface of the housing 51. Multiple drawers A52 and drawers B53 are disposed on the outer housing 51 of the magnetic separator 5, and are arranged alternately. Magnetic rods 54 are symmetrically fixedly connected to the adjacent side surfaces of drawers A52 and B53 and the magnetic separator 5. The installation spacing between two magnetic rods 54 fixedly connected to drawer A52 is a first spacing, and the installation spacing between two magnetic rods 54 fixedly connected to drawer B53 is a second spacing. The first spacing is greater than the second spacing. Drawers A52 and B53 are arranged alternately. Magnetic rods 54 are fixedly installed on each drawer B53. The difference between drawers A52 and B53 lies in the installation position of the magnetic rods 54. The distance between the two magnetic rods 54 installed in drawer A52 is greater than the distance between the two magnetic rods 54 installed in drawer B53. The distance between the two magnetic rods 54 installed in drawer B53 is between the two magnetic rods 54 installed in drawer A52. Powdered raw materials enter from the upper feed port of the iron separator 5 and pass through multiple sets of drawers A52 and B53 to adsorb iron and magnetic foreign objects. The positions of the magnetic rods 54 installed in multiple sets of drawers A52 and B53 are alternated to increase the adsorption area of the raw materials as they pass through the iron separator 5, ensuring the qualification rate of the raw materials.
[0034] In some embodiments, the vibrating screen 7 is provided with a first screen 71, a second screen 72, and a third screen 73. The first screen 71, second screen 72, and third screen 73 are evenly installed in the vibrating screen 7 from top to bottom. Different particle sizes of raw materials are obtained through the triple screens in the vibrating screen 7. One end of each of the first screen 71, second screen 72, and third screen 73 extends outside the vibrating screen 7. A first discharge port 74 is fixedly provided at the end of the first screen 71 extending outside the vibrating screen 7. The first screen 71 is an 8-mesh screen. Raw materials with a particle size larger than 8 mesh will be vibrated to the first discharge port 74, while raw materials with a particle size smaller than 8 mesh will fall onto the second screen 72. A second discharge port 74 is fixedly provided at the end of the second screen 72 extending outside the vibrating screen 7. 5. The second screen 72 is 20 mesh. Raw materials with a particle size greater than 20 mesh will be vibrated to the second feed port 75. Raw materials with a particle size less than 20 mesh will fall to the third screen 73. The end of the third screen 73 extending out of the vibrating screen is fixedly connected to the third feed port 76. The third screen is 32 mesh. Raw materials with a particle size greater than 32 mesh will be vibrated to the third feed port 76. Raw materials with a particle size less than 32 mesh will fall onto the receiving plate 78. The receiving plate 78 is fixed inside the vibrating screen 7 and located below the third screen 73. One end of the receiving plate 78 extends out of the vibrating screen 7 and is fixedly provided with a fourth feed port 77. The receiving plate 78 contains raw materials with a particle size less than 32 mesh, which are vibrated to the fourth feed port 77. Each feed port is equipped with a storage device.
[0035] In some embodiments, the transport device 6 is a screw conveyor, which is more suitable for transporting powders or solid particles at higher temperatures.
[0036] In some embodiments, the discharge valve 3 is a star-shaped discharge valve, and the discharge end of the discharge valve 3 is connected to the fluidized bed dryer 4 through a round-and-square tube. The discharge end of the discharge valve 3 matches the size of one end of the round-and-square tube.
[0037] In some embodiments, the first screen 71 is an 8-mesh screen, the second screen 72 is a 20-mesh screen, and the third screen 73 is a 32-mesh screen.
[0038] In some embodiments, a dust collector is provided in the enclosed space 8 for collecting particulate dust.
[0039] In some embodiments, a plurality of slots 55 are provided on the outer casing 51 of the iron remover 5. Drawers A52 and B53 are the same size, and both drawers A52 and B53 are matched with the size of the slots 55. By providing a plurality of slots 55 on the outer casing 51 of the iron remover 5, the number of slots A and B can be adjusted as needed to ensure the iron removal rate.
[0040] In some embodiments, the vibrating screen 7 and the conveying device 6 are connected by a flexible connection to reduce the leakage of powdery raw materials.
[0041] In some embodiments, the feeding platform 1 is made of carbon steel, and the upper surface of the feeding platform 1 is covered with a stainless steel plate.
[0042] Working principle: The feeding platform 1 is used for pre-storing and feeding raw materials. The feeding platform 1 feeds raw materials into the feed inlet of the hopper 2. The hopper 2 is bucket-shaped, and the raw materials are fed into the feeding valve 3. The star-shaped feeding valve 3 controls the feed rate of the raw materials. The raw materials are in powder form. During the operation of various components, vibration is generated. Therefore, the raw materials are fed into the fluidized bed dryer 4 through flexible connections such as plastic, canvas or rubber. The raw materials are dried by the fluidized bed dryer 4. During the process, mechanical vibration promotes the fluidization of the material. After fluidization, the raw materials pass through the iron remover 5 to remove metal impurities, ensuring that the iron content of the raw materials is not higher than 0.001% and the magnetic foreign matter (MI) content is not higher than 0.00001%. The raw materials after iron removal are transported to the feed end of the vibrating screen 7 through the conveying device 6. The vibrating screen 7 screens materials of different particle sizes through multiple layers of screens with different meshes. According to the particle size, the materials are further processed. The first screen 71 is an 8-mesh screen. Raw materials with a particle size greater than 8 mesh are vibrated to the first feed port 74. Raw materials with a particle size less than 8 mesh fall to the second screen 72 (20 mesh). Raw materials with a particle size greater than 20 mesh are vibrated to the second feed port 75. Raw materials with a particle size less than 20 mesh fall to the third screen 73 (32 mesh). Raw materials with a particle size greater than 32 mesh are vibrated to the third feed port 76. Raw materials with a particle size less than 32 mesh fall onto the receiving plate 78. The receiving plate 78 contains raw materials with a particle size less than 32 mesh, which are then vibrated to the fourth feed port 77. The raw materials with a particle size between 8 and 20 mesh obtained from the first and second feed ports 74 are used to make products. The raw materials with a particle size between 20 and 32 mesh obtained from the third feed port are used to make seed crystals. The raw materials with a particle size less than 32 mesh obtained from the fourth feed port 77 are used to make the fabric. Each feed port is equipped with a storage device.
[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A battery nickel sulfate drying system, characterized in that: The system includes a feeding platform (1), a fluidized bed dryer (4), and a sealed space (8). A vibrating screen (7) is installed in the sealed space (8). A hopper (2) is fixedly installed on the surface of the feeding platform (1). One end of the hopper (2) is a feed inlet, and the other end is a discharge outlet. The discharge outlet of the hopper (2) is fixedly connected to one end of a discharge valve (3). The discharge valve (3) is a star-shaped discharge valve. The other end of the discharge valve (3) is flexibly connected to the feed end of the fluidized bed dryer (4). The discharge end of the fluidized bed dryer (4) is flexibly connected to the feed end of a separator (5). A transport device (6) is fixedly installed between the fluidized bed dryer (4) and the vibrating screen (7). The discharge end of the separator (5) is connected to one end of the transport device (6). The other end of the transport device (6) is connected to the feed end of the vibrating screen (7). The discharge end of the vibrating screen (7) is equipped with a storage device.
2. The battery nickel sulfate drying system according to claim 1, characterized in that: The iron remover (5) is surrounded by an outer shell (51). Multiple drawers A (52) and drawers B (53) are slidably arranged on the outer surface of the outer shell (51). Magnetic rods (54) are symmetrically fixedly connected to the adjacent side surfaces of drawers A (52) and drawers B (53) and the iron remover (5). The installation distance between the two magnetic rods (54) fixedly connected to drawer A (52) is the first distance. The installation distance between the two magnetic rods (54) fixedly connected to drawer B (53) is the second distance. The first distance is greater than the second distance. Drawers A (52) and drawers B (53) are arranged alternately.
3. The battery nickel sulfate drying system according to claim 1, characterized in that: The vibrating screen (7) is provided with a first screen (71), a second screen (72), and a third screen (73). The first screen (71), the second screen (72), and the third screen (73) are evenly installed in the vibrating screen (7) from top to bottom. One end of the first screen (71), the second screen (72), and the third screen (73) all extend out of the vibrating screen (7). The end of the first screen (71) extending out of the vibrating screen (7) is fixedly provided with a first discharge port (74). The end of the second screen (72) extending out of the vibrating screen (7) is fixedly provided with a second discharge port (75). The end of the third screen (73) extending out of the vibrating screen is fixedly connected with a third discharge port (76). A receiving plate (78) is fixed inside the vibrating screen (7) and located below the third screen (73). One end of the receiving plate (78) extends out of the vibrating screen (7) and is fixedly provided with a fourth discharge port (77).
4. A battery nickel sulfate drying system according to claim 1, characterized in that: The transport device (6) is a screw conveyor.
5. A battery nickel sulfate drying system according to claim 1, characterized in that: The feeding valve (3) is a star-shaped feeding valve. The feeding end of the feeding valve (3) is connected to the fluidized bed dryer (4) through a round-and-square tube. The feeding end of the feeding valve (3) matches the size of one end of the round-and-square tube.
6. A battery nickel sulfate drying system according to claim 3, characterized in that, The first screen (71) is an 8-mesh screen, the second screen (72) is a 20-mesh screen, and the third screen (73) is a 32-mesh screen.
7. A battery nickel sulfate drying system according to claim 1, characterized in that: A dust collector is installed in the enclosed space (8).
8. A battery nickel sulfate drying system according to claim 2, characterized in that: The outer shell (51) of the iron remover (5) is provided with multiple slots (55). The drawer A (52) and drawer B (53) are the same size, and the size of drawer A (52) and drawer B (53) are matched with the slots (55).
9. A battery nickel sulfate drying system according to claim 1, characterized in that: The connection between the vibrating screen (7) and the conveying device (6) is partially a flexible connection.
10. A battery nickel sulfate drying system according to claim 1, characterized in that: The feeding platform (1) is made of carbon steel, and the upper surface of the feeding platform (1) is covered with a stainless steel plate.