Vacuum feeding stock bin

Abstract

The utility model discloses a vacuum feeding stock bin which comprises a bin body, the bottom of the bin body is fixedly communicated with a material conveying pipeline, a screen is fixedly installed in the bin body and extends into the material conveying pipeline through the bottom of an air supply pipeline, and the air supply pipeline is thinner than the material conveying pipeline and is externally connected with air supply equipment through the top of the air supply pipeline. Air is supplied into the material conveying pipeline through the air supply pipeline, micro negative pressure can be formed in the bin body, materials can fall down along the bottom of the bin body in the air supply process, attachment of the materials to the bin wall of the bin body can be reduced, meanwhile, the materials can be filtered and screened through the screen on the inner wall of the bin body, and foreign matter can be prevented from being mixed into the materials; the negative pressure device is arranged at the tail end of the material conveying pipeline, negative pressure is generated in the material conveying pipeline through the negative pressure device to suck the materials in the bin body, the whole operation process is continuous, manual auxiliary operation is not needed, the conveying efficiency is greatly improved, and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying lithium ion / sodium ion positive electrode materials, in particular to a vacuum feeding silo. Background Art

[0002] In recent years, with the development of electric vehicles and energy storage, the lithium-ion battery industry has developed rapidly, with the industry scale continuing to expand, the global market share steadily increasing, and the localization process of key materials accelerating. Lithium battery materials, such as ternary materials, lithium iron phosphate and other powder materials, have higher and higher requirements for vacuum feeding systems during production, packaging and transportation. The current feeding system has many shortcomings, such as excessive material accumulation leading to negative pressure and suffocation; excessive material accumulation leading to bridging; and the risk of foreign matter mixing during negative pressure transportation, so we need to propose a vacuum feeding silo. Utility Model Content

[0003] The purpose of the utility model is to provide a vacuum loading silo, which has the advantages of reducing the pollution of the environment and personnel to the materials and improving the cleanliness. There are no gaps or dead corners in the silo that are easy to cause material accumulation, the surface is easy to visually inspect, the labor intensity is reduced, and the work efficiency is improved, so as to solve the problems raised in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A vacuum loading silo includes a silo body, the bottom of which is fixedly connected to a material conveying pipeline, a screen is fixedly installed inside the silo body, an air supply pipeline is plugged into the interior of the screen, the top of the air supply pipeline extends to the top of the silo body and is installed with an air supply filter element, and the bottom of the air supply pipeline extends to the interior of the material conveying pipeline.

[0006] Preferably, the inner bottom of the warehouse body is configured to be conical, and the inner wall of the warehouse body is configured to be a smooth inner wall.

[0007] Preferably, an air supply pipe fixing bracket is welded to the bottom outer wall of the air supply pipe, and the bottom of the air supply pipe fixing bracket is fixedly connected to the conical inner wall of the warehouse body.

[0008] Preferably, the air supply pipe fixing bracket is composed of three groups of rod-shaped stainless steel, and the three groups of rod-shaped stainless steel are arranged in a circular array.

[0009] Preferably, the screen is configured as a funnel-shaped screen, and the screen is configured as a stainless steel screen.

[0010] Preferably, a through hole for the air supply pipeline to pass through is opened in the center of the interior of the screen, and the outer wall of the air supply pipeline is fixedly connected to the screen.

[0011] Preferably, four groups of silo legs are fixedly mounted on the bottom of the silo body, and the four groups of silo legs are symmetrically arranged in pairs.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model extends to the material conveying pipeline through the bottom of the air supply pipeline. Since the air supply pipeline is thinner than the material conveying pipeline, an air supply device is externally connected to the top of the air supply pipeline, and air is supplied to the material conveying pipeline through the air supply pipeline, so that a slight negative pressure is formed in the warehouse. During the air supply process, the material will fall along the bottom of the warehouse body, which will reduce the adhesion of the material to the warehouse wall. At the same time, the screen on the inner wall of the warehouse body can filter and screen the material, which can prevent foreign matter from mixing into the material. When there is too much material, negative pressure suffocation will not occur. A negative pressure device is provided at the end of the material conveying pipeline, and negative pressure is generated in the material conveying pipeline through the negative pressure device to absorb the material inside the warehouse body. The whole operation process is continuous and does not require manual auxiliary operation, which greatly increases the conveying efficiency and reduces labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model in a front view;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model in cross section;

[0016] Figure 3 It is a structural schematic diagram of the screen of the utility model.

[0017] In the figure: 1. silo body; 2. material conveying pipeline; 3. screen; 4. air supply pipeline; 5. air supply filter element; 6. air supply pipe fixing bracket; 7. silo support leg. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-3 , the utility model provides a technical solution:

[0020] A vacuum loading silo includes a silo body 1, a material conveying pipeline 2 is fixedly connected to the bottom of the silo body 1, a screen 3 is fixedly installed inside the silo body 1, an air supply pipeline 4 is inserted into the inside of the screen 3, the top of the air supply pipeline 4 extends to the top of the silo body 1 and is installed with an air supply filter 5, and the bottom of the air supply pipeline 4 extends to the inside of the material conveying pipeline 2.

[0021] The inner bottom of the silo body 1 is configured to be conical, and the inner wall of the silo body 1 is configured to be a smooth inner wall, so as to facilitate the sliding of materials and reduce the adhesion of materials to the inner wall of the silo body 1.

[0022] For example, the design and manufacture of the silo 1: The silo 1 is made of high-strength stainless steel to ensure its corrosion resistance and structural stability during long-term use. The external dimensions of the silo are determined according to actual production needs, and the internal volume is reasonably designed to meet a certain amount of material storage, but not too large to reduce the vacuum suction efficiency. The inner wall of the silo is precisely polished to form an extremely smooth surface to reduce the friction and adhesion of the material during the falling process, ensuring smooth flow of the material.

[0023] For example, the conical inner bottom design: the inner bottom of the bin body 1 is designed to be conical, and the angle is carefully calculated and generally set between 60° and 70° to achieve the best natural flow effect. This design can use gravity to make the material gather more easily to the center under the action of vacuum and pass through the material conveying pipe 2 smoothly, reducing the possibility of material accumulation and blockage at the bottom.

[0024] For example, the configuration of the screen 3 is as follows: the screen 3 is made of a high-strength, wear-resistant metal woven mesh or a punched plate, and is installed at an appropriate height inside the bin 1 to filter out large impurities and protect subsequent equipment from damage. The aperture of the screen is customized according to the material characteristics to ensure that fine materials can pass smoothly while blocking unnecessary debris. The screen fixing structure is designed to be easy to disassemble and clean, and is easy to maintain.

[0025] Exemplarily, the integration of the air supply pipe 4 and the air supply filter 5: the air supply pipe 4 is made of wear-resistant and corrosion-resistant materials, and its internal diameter is determined according to the required air flow rate to ensure sufficient gas flow. The air supply filter 5 at the top of the pipe is made of high-efficiency filtration material, such as a HEPA filter element, which is used to purify the air entering the silo, prevent external pollutants from entering, and maintain the purity of the material. The bottom of the air supply pipe extends to the inside of the material conveying pipe 2. Through the precisely controlled gas flow rate, the material flow is assisted, the negative pressure adsorption effect that may be generated during vacuum suction is reduced, and the smooth discharge of the material is further promoted.

[0026] An air supply pipe fixing bracket 6 is welded to the bottom outer wall of the air supply pipe 4, and the bottom of the air supply pipe fixing bracket 6 is fixedly connected to the conical inner wall of the warehouse body 1, so that the air supply pipe 4 can be fixed by the air supply pipe fixing bracket 6 to improve the stability of the air supply pipe 4.

[0027] The air supply pipe fixing bracket 6 is composed of three groups of rod-shaped stainless steel, which are arranged in a circular array. The three groups of rod-shaped stainless steel cooperate to form a triangular support, and do not affect the falling of materials. The air supply pipe fixing bracket 6 is made of the same or compatible corrosion-resistant, high-strength material as the silo 1, and is designed to be a U-shaped or embracing structure that fits the bottom contour of the air supply pipe 4, ensuring a close fit with the outer wall of the bottom of the air supply pipe 4 to provide a stable support. The inner surface of the bracket is smooth to avoid unnecessary wear on the air supply pipe.

[0028] The screen 3 is set as a funnel-shaped screen, and the screen 3 is set as a stainless steel screen, which is convenient for filtering and screening the material through the screen 3. It can not only pass the positive electrode material, but also prevent foreign matter from falling into the material, thereby improving the cleanliness of the material. The screen 3 is made of high-quality stainless steel and is designed in a funnel shape. The upper opening is larger and the lower part gradually narrows, matching the conical inner bottom of the bin body 1. This design not only helps the material to flow smoothly from top to bottom, reducing accumulation and blockage, but also effectively increases the filtration area and improves the filtration efficiency. The funnel-shaped structure also facilitates the quick inspection and cleaning of impurities accumulated on the screen, maintaining the cleanliness and filtration performance of the screen.

[0029] A through hole is provided in the center of the screen 3 for the air supply pipe 4 to pass through. The outer wall of the air supply pipe 4 is fixedly connected to the screen 3, so that the air supply pipe 4 can be supported and fixed by cooperating with the through hole in the screen 3.

[0030] Four groups of silo legs 7 are fixedly installed at the bottom of the silo body 1 . The four groups of silo legs 7 are symmetrically arranged in pairs, so that the silo body 1 can be supported by the four groups of silo legs 7 .

[0031] Specifically, the design and material selection of the silo legs 7: The silo legs 7 are made of high-strength carbon steel or stainless steel to ensure that they have sufficient load-bearing capacity and good corrosion resistance. Each set of legs is designed as a tubular structure or a rectangular cross-section with reinforcing ribs to increase its mechanical strength and rigidity. The surface is treated with anti-corrosion, such as painting or electroplating, to adapt to different operating environments.

[0032] Symmetrical arrangement principle: The four groups of silo legs 7 are arranged in pairs according to the principle of symmetry, ensuring that the silo remains horizontal when supported and reducing the risk of tilting due to uneven ground. The symmetrical arrangement also helps to evenly distribute the weight of the silo and avoid deformation or damage caused by excessive local force. In the specific arrangement, each pair of legs is arranged along the long axis of the silo, and the other pair is arranged along the wide axis to form a stable support frame.

[0033] Adjustable height design: In order to adapt to different ground conditions, the bottom of the silo leg 7 is designed with an adjustable height device, such as a spiral lifting foot cup or a retractable column. Users can adjust the length of the leg according to actual needs to ensure the overall stability of the silo. The adjustment mechanism is simple and easy to operate, and it also has a locking function. After adjustment, it can be firmly locked to prevent accidental sliding.

[0034] Anti-skid and shock-absorbing measures: Anti-skid pads or rubber pads are installed at the bottom of the silo legs 7 to increase the friction with the ground and prevent the silo from sliding during use. At the same time, some designs may also add shock-absorbing elements (such as spring shock absorbers) to absorb the vibration generated during the operation of the equipment, protect the equipment from vibration damage, reduce noise, and improve the quality of the working environment.

[0035] Installation and fixing: The silo legs 7 are fixed to the bottom structure of the silo body 1 by welding or bolting. The welding points must undergo strict quality inspection to ensure the connection strength; if bolt connection is adopted, high-strength bolts must be used and appropriate anti-loosening measures, such as spring washers or locking nuts, must be used to ensure the reliability and safety of the connection.

[0036] Through the above specific implementation methods, the four groups of symmetrically arranged silo legs 7 not only provide solid physical support, but also ensure the stable operation and long-term durability of the entire vacuum loading silo system in various working environments through its flexibility and functional design.

[0037] Working principle: When the utility model is in use, it extends from the bottom of the air supply pipe 4 to the material conveying pipe 2. Since the air supply pipe 4 is thinner than the material conveying pipe 2, an air supply device is externally connected to the top of the air supply pipe 4. The air supply filter 5 can filter the gas transported by the air supply device to prevent foreign matter from entering. Air is supplied to the material conveying pipe 2 through the air supply pipe 4, so that a slight negative pressure is formed in the warehouse body 1. During the air supply process, the material will fall along the bottom of the warehouse body 1, which will reduce the adhesion of the material to the warehouse wall of the warehouse body 1. At the same time, the screen 3 on the inner wall of the warehouse body 1 can filter and screen the material to prevent foreign matter from mixing into the material. When there is too much material, negative pressure suffocation will not occur. A negative pressure device is provided at the end of the material conveying pipe 2, and negative pressure is generated in the material conveying pipe 2 through the negative pressure device to absorb the material inside the warehouse body 1. The entire operation process is continuous and does not require manual auxiliary operation, which greatly increases the conveying efficiency and reduces labor costs.

[0038] In the description of this utility model, it is necessary to understand that the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing this utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum loading silo, comprising a silo body (1), characterized in that: The bottom of the silo (1) is fixedly connected to a material conveying pipeline (2), a screen (3) is fixedly installed inside the silo (1), an air supply pipeline (4) is plugged into the inside of the screen (3), the top of the air supply pipeline (4) extends to the top of the silo (1) and is installed with an air supply filter element (5), and the bottom of the air supply pipeline (4) extends to the inside of the material conveying pipeline (2).

2. A vacuum loading silo according to claim 1, characterized in that: The inner bottom of the bin body (1) is configured to be conical, and the inner wall of the bin body (1) is configured to be a smooth inner wall.

3. A vacuum loading silo according to claim 2, characterized in that: An air supply pipe fixing bracket (6) is welded to the bottom outer wall of the air supply pipe (4), and the bottom of the air supply pipe fixing bracket (6) is fixedly connected to the conical inner wall of the bin body (1).

4. A vacuum loading silo according to claim 3, characterized in that: The air supply pipe fixing bracket (6) is composed of three groups of rod-shaped stainless steel, and the three groups of rod-shaped stainless steel are arranged in a ring array.

5. The vacuum loading silo according to claim 1, characterized in that: The screen (3) is configured as a funnel-shaped screen, and the screen (3) is configured as a stainless steel screen.

6. A vacuum loading silo according to claim 1, characterized in that: A through hole is provided at the center of the interior of the screen (3) for the air supply pipeline (4) to pass through, and the outer wall of the air supply pipeline (4) is fixedly connected to the screen (3).

7. A vacuum loading silo according to claim 1, characterized in that: Four groups of silo legs (7) are fixedly mounted on the bottom of the silo body (1), and the four groups of silo legs (7) are symmetrically arranged in pairs.

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