Discharging device of lithium battery material mixer

Abstract

The utility model provides a blanking device of a lithium battery material mixer, which belongs to the technical field of horizontal mixers and comprises a special-shaped blanking hopper, a pneumatic butterfly valve is mounted at the bottom of the special-shaped blanking hopper, a pneumatic actuator is mounted on the side of the pneumatic butterfly valve, and a planetary feeder is mounted at the bottom of the pneumatic butterfly valve. By combining the dual control of the pneumatic butterfly valve and the planetary feeder, the high-precision control of the blanking amount of the lithium battery material and the quick response and adjustment capability of the pneumatic butterfly valve can be realized, and the accuracy of the mixed material in each batch is ensured by combining the stable and uniform feeding characteristics of the planetary feeder; meanwhile, the device is simple in structure, small in size, light in weight, convenient to install and free of maintenance, production downtime is greatly shortened, maintenance work intensity is reduced, cost is saved, production efficiency is improved, and material yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of horizontal mixers, in particular to a feeding device for a lithium battery material mixer. Background Art

[0002] Currently, the unloading device on lithium battery material mixers mostly adopts a combined unloading method of flap valve and planetary feeder. However, the flap valve has obvious disadvantages: poor sealing performance. The opening and closing action of the flap valve is completed by the actuator cylinders on both sides. Its opening and closing structure is eccentric. If the two cylinders execute inconsistently during the execution process, it will lead to uneven force on the valve plate and insufficient sealing. At the same time, the sealing ring of the flap valve is generally installed on the valve plate. Due to the thin valve plate, the sealing ring is easily damaged during use, resulting in insufficient sealing and leakage. The leaked battery material is difficult to recycle and can only be scrapped. The flap valve requires a large installation space. Due to its structure and design, it requires a large installation space. This will become a limiting factor for some space-constrained application scenarios, affecting its feasibility in practical application. The maintenance cost is high. In lithium battery material mixing equipment, the flap valve seal has a short service life, generally only 3 months. In addition, dust easily damages the cylinders on both sides of the flap valve during battery material mixing, resulting in high cylinder costs. Moreover, it is large in size, heavy in weight, and difficult to disassemble. When it needs to be repaired, the repair time is long, generally 4-6 hours, which leads to production stagnation and high repair costs.

[0003] At present, most battery positive electrode material manufacturers are producing ultra-long-lasting lithium battery materials, and all choose horizontal mixers for mixing. The flap valve unloading structure used by equipment manufacturers will lead to waste of lithium battery materials due to insufficient sealing, and ultra-long-lasting lithium battery materials are expensive, which leads to high production costs; in addition, the mixer flap valve is difficult to disassemble, has a short service life, and high maintenance costs, which increases production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a lithium battery material mixing machine unloading device to overcome the problems existing in the prior art. The structure of the utility model is completely optimized on the original basis, and the original flap valve plus double execution cylinder structure is changed to a pneumatic butterfly valve plus pneumatic actuator structure; the utility model can provide a device that can completely eliminate the powder leakage problem caused by insufficient sealing in the unloading device of the lithium battery material mixing equipment, can improve the material yield, reduce costs, and is also easy to install and maintain.

[0005] In order to achieve the above-mentioned purpose, the technical solutions adopted by the present invention are as follows:

[0006] A lithium battery material mixer unloading device includes a special-shaped unloading hopper, a pneumatic butterfly valve is installed at the bottom of the special-shaped unloading hopper, a pneumatic actuator is installed on the side of the pneumatic butterfly valve, and a planetary feeder is installed at the bottom of the pneumatic butterfly valve;

[0007] Furthermore, a first flange is provided at the bottom of the special-shaped lower hopper, and a second flange is provided at the top of the planetary feeder;

[0008] Furthermore, the pneumatic butterfly valve is fixed by a first flange and a second flange;

[0009] Further, the first flange is connected to the second flange via stainless steel fasteners;

[0010] Furthermore, the interior of the cavity of the special-shaped lower hopper is sprayed with a tungsten carbide layer having a thickness greater than 200 μm;

[0011] Furthermore, a pneumatic butterfly valve stem is installed on the side of the pneumatic butterfly valve;

[0012] Furthermore, the pneumatic actuator is mounted on the valve stem of the pneumatic butterfly valve;

[0013] Furthermore, the pneumatic butterfly valve stem is a square shaft structure;

[0014] Furthermore, the pneumatic butterfly valve is a fully fluorine-lined 304 stainless steel butterfly valve;

[0015] Furthermore, the interior of the cavity of the planetary feeder is sprayed with ETFE.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] The utility model provides a lithium battery material mixer unloading device, which can achieve highly precise control of the unloading amount of lithium battery materials by combining the dual control of a pneumatic butterfly valve and a planetary feeder; the rapid response and adjustment capability of the pneumatic butterfly valve, combined with the stable and uniform feeding characteristics of the planetary feeder, ensures the accuracy of each batch of mixed materials, which is beneficial to improving the consistency and product quality of battery manufacturing; the special-shaped unloading hopper is only 1 / 2 of the volume of the traditional unloading device flap, and is lighter, only 1 / 3 of the traditional unloading device flap, easy to disassemble and assemble, and simple to maintain. At the same time, it can also take into account the unloading needs of lithium battery materials of different types and forms. By optimizing its shape and internal structure, it can reduce the accumulation and blockage of materials in the hopper, enhance the adaptability and flexibility of the equipment, reduce the waste of lithium battery materials, and save production costs. At the same time, the special-shaped unloading hopper has a simple structure, small volume, light weight, easy installation, and does not require maintenance, which greatly reduces production downtime, reduces the intensity of maintenance work, saves costs, increases production efficiency, and improves material yield.

[0018] Furthermore, by adopting flange connection, the connection between the special-shaped lower hopper and the planetary feeder becomes standardized and normalized, making the installation process simpler and faster, and also facilitating subsequent disassembly and maintenance work.

[0019] Furthermore, the wafer-type fully lined fluorine pneumatic butterfly valve has good wear resistance, good centering, uniform force, stable opening and closing, and can effectively prevent the introduction of magnetic foreign matter. It runs more smoothly and seals better during use, solving the problem of insufficient sealing. The service life of the traditional blanking device flap is generally 3 months, while the service life of the fully lined fluorine pneumatic butterfly valve of the utility model is greatly extended to 14 months, ensuring the stability of the equipment.

[0020] Furthermore, by combining with stainless steel fasteners, the structure is more compact, the installation is simple, the installation space is smaller, the maintenance is convenient, the versatility is high, the cost is low, and the service life is longer.

[0021] Furthermore, tungsten carbide is a material with high hardness and high wear resistance. Spraying a tungsten carbide layer on the inside of a special-shaped hopper can significantly enhance the wear resistance of the hopper body and reduce the wear caused by material friction and impact, thereby extending the service life of the hopper and reducing replacement frequency and cost. At the same time, the tungsten carbide layer is not easy to adhere to material residues, making the hopper easier to clean and maintain, helping to maintain the cleanliness of the production environment and reduce cross-contamination and quality problems caused by material residues.

[0022] Furthermore, the pneumatic butterfly valve stem with a square shaft structure has higher torsional stiffness than that of a round shaft or other shapes, which can reduce the torsional deformation of the valve stem during the driving process of the pneumatic actuator, thereby ensuring the stability of the transmission and improving the switching accuracy and reliability of the pneumatic butterfly valve; the connection between the pneumatic butterfly valve stem with a square shaft structure and the pneumatic actuator is more stable and not easy to loosen or misalign during installation. At the same time, it is also convenient for subsequent maintenance and inspection work, such as replacing seals, adjusting the valve stem position, etc., thereby improving the maintainability of the equipment; because the pneumatic butterfly valve stem with a square shaft structure has higher strength and stability, it can reduce wear and deformation caused by long-term use and frequent operation, thereby extending the service life of the pneumatic butterfly valve and its related components, and reducing maintenance and replacement costs.

[0023] Furthermore, fluorine materials have extremely strong chemical stability and can resist the corrosion of various strong acids, strong alkalis and organic solvents. During the mixing process of lithium battery materials, the materials may contain corrosive components. The full fluorine lining design can ensure that the interior of the butterfly valve is not corroded and extend its service life.

[0024] Furthermore, ETFE has extremely strong chemical stability and can resist the corrosion of various acids, alkalis, salts and organic solvents. During the mixing process of lithium battery materials, the materials may contain corrosive components. The ETFE coating can effectively protect the cavity of the planetary feeder from corrosion and extend the service life of the equipment; the surface of the ETFE coating is smooth and not easy to adhere to materials. It can effectively prevent the accumulation and agglomeration of materials on the inner wall of the planetary feeder cavity, keep the equipment clean and run smoothly, and also help reduce the number of cleanings and the difficulty of cleaning, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a lithium battery material mixer unloading device of the utility model;

[0026] Figure 2 This is an assembly structure diagram of a lithium battery material mixer unloading device of the utility model;

[0027] Figure 3 This is a schematic diagram of the special-shaped discharge hopper structure of a lithium battery material mixer discharge device of the utility model;

[0028] Figure 4 This is a schematic diagram of the structure of a pneumatic butterfly valve of a lithium battery material mixer unloading device of the utility model;

[0029] Figure 5 This is a schematic diagram of the structure of a pneumatic actuator for a lithium battery material mixer unloading device of the utility model;

[0030] Figure 6 This is a schematic structural diagram of a planetary feeder of a lithium battery material mixer unloading device of the utility model;

[0031] Figure 7 This is a schematic diagram of the stainless steel fastener structure of a lithium battery material mixer unloading device of the utility model;

[0032] In the figure, 1-special-shaped lower hopper; 2-pneumatic butterfly valve; 3-pneumatic actuator; 4-planetary feeder; 5-first flange; 6-second flange; 7-stainless steel fasteners; 8-pneumatic butterfly valve stem. DETAILED DESCRIPTION

[0033] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below 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 work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component. When a component is considered to be "disposed on" another component, it may be directly disposed on the other component or there may be a centrally located component.

[0035] In addition, the terms "long", "short", "inside", "outside", etc. that indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only used to facilitate the description of the present invention. They do not indicate or imply that the device or component referred to must have this specific orientation or operate in a specific orientation structure, and should not be understood as a limitation of the present invention.

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0037] Example 1:

[0038] like Figure 1-Figure 7 As shown, the utility model provides a lithium battery material mixer unloading device, comprising a special-shaped unloading hopper 1, a pneumatic butterfly valve 2 is installed at the bottom of the special-shaped unloading hopper 1, a pneumatic actuator 3 is installed on the side of the pneumatic butterfly valve 2, and a planetary feeder 4 is installed at the bottom of the pneumatic butterfly valve 2;

[0039] Preferably, a first flange 5 is provided at the bottom of the special-shaped lower hopper 1, a second flange 6 is provided at the top of the planetary feeder 4, and the pneumatic butterfly valve 2 is fixed by the first flange 5 and the second flange 6;

[0040] Preferably, the first flange 5 is connected to the second flange 6 via a stainless steel fastener 7;

[0041] Preferably, the interior of the cavity of the special-shaped lower hopper 1 is sprayed with a tungsten carbide layer having a thickness greater than 200 μm;

[0042] Preferably, a pneumatic butterfly valve stem 8 is installed on the side of the pneumatic butterfly valve 2, and the pneumatic actuator 3 is installed on the pneumatic butterfly valve stem 8;

[0043] Preferably, the pneumatic butterfly valve stem 8 is a square shaft structure;

[0044] Preferably, the pneumatic butterfly valve 2 is a fully fluorine-lined 304 stainless steel butterfly valve;

[0045] Preferably, the interior of the cavity of the planetary feeder 4 is sprayed with ETFE.

[0046] Example 2:

[0047] like Figure 1-Figure 7 As shown, the utility model provides a lithium battery material mixer unloading device, including a special-shaped unloading hopper 1, a pneumatic butterfly valve 2, a pneumatic actuator 3, a planetary feeder 4, a first flange 5, a second flange 6, a stainless steel fastener 7 and a pneumatic butterfly valve stem 8;

[0048] A first flange 5 is provided at the bottom of the special-shaped lower hopper 1, and a second flange 6 is provided at the top of the planetary feeder 4. The pneumatic butterfly valve 2 is fixed to the bottom of the special-shaped lower hopper 1 and the top of the pneumatic butterfly valve 2 by means of a clamp-type connection using stainless steel fasteners 7 via the first flange 5 and the second flange 6. A pneumatic butterfly valve stem 8 is installed on the side of the pneumatic butterfly valve 2. The pneumatic butterfly valve stem 8 is a square shaft structure, and the pneumatic actuator 3 is installed on the pneumatic butterfly valve stem 8. The planetary feeder 4 is installed at the bottom of the pneumatic butterfly valve 2.

[0049] Preferably, the interior of the cavity of the special-shaped lower hopper 1 is sprayed with a tungsten carbide layer having a thickness greater than 200 μm;

[0050] Preferably, the material of the special-shaped lower hopper 1 can be SUS304 or SUS316;

[0051] Preferably, the top of the special-shaped lower hopper 1 is connected to the discharge port of the horizontal mixer through a stainless steel fastener;

[0052] Preferably, the horizontal mixer is a horizontal plowshare mixer, a horizontal ribbon mixer, etc.

[0053] Preferably, the stainless steel fasteners are 8 M10 stainless steel hexagonal studs;

[0054] Preferably, the pneumatic butterfly valve 2 is a fully fluorine-lined 304 stainless steel butterfly valve;

[0055] Preferably, the valve body and valve plate of the pneumatic butterfly valve 2 are made of SUS304 lined with ETFE coating, and the thickness of the ETFE coating can reach 2-3 mm;

[0056] Preferably, the pneumatic actuator 3 is a general component that meets national standards, has a double-acting function, and its dimensions and connection structure meet national standard requirements;

[0057] Preferably, the interior of the cavity of the planetary feeder 4 is sprayed with ETFE;

[0058] Preferably, the planetary feeder 4 is a non-standard component designed based on the current production status of lithium battery materials, and the material can be SUS304 or SUS316;

[0059] Preferably, the special-shaped lower hopper 1, the pneumatic butterfly valve 2 and the planetary feeder 4 are connected respectively using 8 M12 stainless steel hexagonal bolts.

[0060] The structure of the utility model has been completely optimized on the original basis. The original flap valve plus double execution cylinder structure is changed to a pneumatic butterfly valve plus pneumatic actuator structure. It can provide a device that can completely eliminate the powder leakage problem caused by insufficient sealing in the unloading device of the lithium battery material mixing equipment, improve material yield and reduce costs.

[0061] Comparison table of the structure of the new type of unloading device and the unloading device of the mixer equipment manufacturer

[0062]

[0063] The unloading device of the utility model not only eliminates the problems of insufficient sealing and leakage of lithium battery materials, but also, due to the change of its unloading structure, increases its service life, reduces its volume, reduces its weight, works stably, ensures the stability of the equipment, and has been maturely applied to our company's horizontal screw ribbon mixer; the flap valve unloading device originally used by the manufacturer has insufficient sealing, which is prone to material leakage and causes the material to be scrapped. In addition, it is large in volume and heavy in weight, which increases maintenance time and maintenance cost. The butterfly valve unloading device of the utility model has a simple structure, low cost, and is easy to disassemble and assemble, which greatly reduces production downtime, reduces the intensity of maintenance work, saves costs, increases production efficiency, and improves material yield.

[0064] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A lithium battery material mixer unloading device, characterized in that: The invention comprises a special-shaped lower hopper (1), a pneumatic butterfly valve (2) is installed at the bottom of the special-shaped lower hopper (1), a pneumatic actuator (3) is installed on the side of the pneumatic butterfly valve (2), and a planetary feeder (4) is installed at the bottom of the pneumatic butterfly valve (2).

2. The unloading device of a lithium battery material mixer according to claim 1, characterized in that: The bottom of the special-shaped lower hopper (1) is provided with a first flange (5), and the top of the planetary feeder (4) is provided with a second flange (6).

3. The unloading device of a lithium battery material mixer according to claim 2, characterized in that: The pneumatic butterfly valve (2) is fixed via a first flange (5) and a second flange (6).

4. The unloading device of a lithium battery material mixer according to claim 3, characterized in that: The first flange (5) is connected to the second flange (6) via a stainless steel fastener (7).

5. The unloading device of a lithium battery material mixer according to claim 1, characterized in that: The interior of the cavity of the special-shaped lower hopper (1) is sprayed with a tungsten carbide layer having a thickness greater than 200 μm.

6. The unloading device of a lithium battery material mixer according to claim 1, characterized in that: A pneumatic butterfly valve stem (8) is installed on the side of the pneumatic butterfly valve (2).

7. A lithium battery material mixer unloading device according to claim 6, characterized in that: The pneumatic actuator (3) is mounted on the pneumatic butterfly valve stem (8).

8. The unloading device of a lithium battery material mixer according to claim 6, characterized in that: The pneumatic butterfly valve stem (8) is a square shaft structure.

9. The unloading device of a lithium battery material mixer according to claim 1, characterized in that: The pneumatic butterfly valve (2) is a fully fluorine-lined 304 stainless steel butterfly valve.

10. The unloading device of a lithium battery material mixer according to claim 1, characterized in that: The interior of the cavity of the planetary feeder (4) is sprayed with ETFE.

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