Low gas consumption air pulverizer

Abstract

The utility model discloses a battery material crushing technical field's low air quantity air grinder, aims at solving the problem of excessive air consumption of air grinder in prior art. It includes the bottom disc of the whole disc -like, and the bottom disc is buckled with the seal cover for forming annular cavity between the bottom disc, and the middle part position of seal cover is connected with the discharge pipe, and the side position of seal cover is connected with the feed pipe, and the middle part position of bottom disc is rotationally arranged with centrifugal wheel, and the centrifugal wheel includes two layer interval arrangement's locating plate, and the multiple centrifugal impeller is arranged with the circumferential array in the center of the middle axis of locating plate between two locating plates, and the locating plate of upper position and the top of seal cover are rotationally sealed, and the locating plate is provided with the discharge port and is connected with the discharge pipe, and the outer circumferential side of bottom disc is provided with a plurality of air nozzles. The utility model is used for reducing the air consumption while guaranteeing the sufficient crushing effect, and is favorable to the saving of gas supply and the reduction of equipment operating cost.

Description

Technical Field

[0001] This utility model relates to a low-volume air pulverizer, belonging to the field of battery material pulverization technology. Background Technology

[0002] When preparing cathode materials for solid-state batteries using the dry method, the sintering and pulverizing process requires a sufficiently inert gas environment because the sulfides and other materials contained in the materials readily react with air. After the roller crushing is completed, air jet pulverization is usually required to further enhance the degree of material pulverization. This necessitates the continuous operation of high-pressure gas in the air jet pulverizer, utilizing the friction between particles to fully pulverize blocky materials. However, in this method, the protective gas (such as argon or nitrogen) needs to be continuously supplied at high pressure, resulting in rapid gas consumption and thus high actual costs in the application of traditional air jet pulverizers. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a low-volume air pulverizer that can ensure sufficient crushing effect while reducing air consumption, thereby saving air supply and reducing equipment operating costs.

[0004] To achieve the above objectives, this utility model employs the following technical solution: This utility model provides a low-volume air pulverizer, comprising a generally disc-shaped chassis. A sealing cover is fitted onto the chassis to form an annular cavity between the chassis and the sealing cover. A discharge pipe is connected to the center of the sealing cover, and a feed pipe is connected to the side of the sealing cover. A centrifugal wheel is rotatably mounted in the center of the chassis. The centrifugal wheel includes two spaced positioning plates. Multiple centrifugal blades are arranged in a circular array between the two positioning plates with the central axis of the positioning plates as the center. The positioning plate located at the upper position is rotatably sealed to the top of the sealing cover, and the positioning plate is provided with a discharge port connected to the discharge pipe. Multiple air nozzles are arranged in a circular array on the outer periphery of the chassis. A drive device is provided on one side of the chassis to drive the centrifugal wheel to rotate. The drive device is used to drive the centrifugal wheel to generate wind from the inside out, and the angle between the generated wind direction and the wind direction generated by the nearest air nozzle is less than 180°.

[0005] Specifically, the centrifugal blades are designed in an arc shape.

[0006] Specifically, the chassis consists of two interlocking discs, with the middle of the two discs forming an opening for the centrifugal wheel shaft to pass through, and the two discs are locked together with bolts.

[0007] Specifically, the positioning plate located above is also provided with an annular oil groove, and the inner side of the sealing cover is provided with a raised rib that rotates with the annular oil groove.

[0008] Specifically, the chassis has multiple cylindrical grooves arranged in a circumferential array on its side. Each cylindrical groove is fitted with a rotatable adjusting block. The adjusting block has an air hole, with its two ends located on the inner and outer sides of the sealing cover. Each air nozzle is connected to the air hole of the corresponding adjusting block.

[0009] Specifically, an adjusting ring is rotatably mounted on the underside of the chassis, with its central axis coinciding with the central axis of the chassis. The adjusting ring is rotatably mounted with multiple connecting rods. Multiple arc grooves are formed on the underside of the chassis, centered on the axis of each cylindrical groove. Each steering block has a shaft protruding from the bottom surface of the chassis as a connecting joint. Each connecting joint is rotatably mounted with an F-type adjusting rod. One end of the F-type adjusting rod is rotatably limited within the arc groove and connected to the steering block, while the other end is hinged to the end of the connecting rod.

[0010] Specifically, the adjusting ring is provided with an arc-shaped adjusting groove, and the bottom of the chassis is provided with an adjusting bolt located in the arc-shaped adjusting groove.

[0011] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This invention incorporates a centrifugal wheel within a traditional airflow pulverizer. When high-pressure gas is injected into the chamber through the air nozzle, the particles to be pulverized are directly blown towards the centrifugal wheel. By controlling the angle and direction of the centrifugal wheel, the particles are struck by the surface of the centrifugal wheel, while a locally enhanced vortex is formed around the periphery of the wheel. This process crushes the material through impact while allowing only fine particles to flow out through the gaps in the centrifugal blades. As a result, the pulverizing effect can be achieved even with relatively low air nozzle pressure, thus saving air consumption and reducing operating costs. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the air pulverizer provided in this embodiment of the utility model; Figure 2 This is a partial structural schematic diagram of the air pulverizer provided in this embodiment of the utility model; Figure 3 This is a bottom view of the air pulverizer provided in this embodiment of the utility model; Figure 4 This is a utility model Figure 3 An enlarged view of the structure at point A of the air pulverizer provided in the embodiment; Figure 5This is a front view of the air pulverizer provided in this embodiment of the utility model; Figure 6 This is a utility model Figure 5 A cross-sectional view of the air pulverizer provided in the embodiment; Figure 7 This is a utility model Figure 5 A cross-sectional view of the air pulverizer provided in the embodiment; Figure 8 This is a utility model Figure 5 A DD-direction sectional view of the air pulverizer provided in the embodiment; Reference numerals: 1. Chassis; 101. Splicing plate; 2. Sealing cover; 3. Discharge pipe; 4. Feed pipe; 5. Centrifugal wheel; 501. Positioning plate; 502. Oil tank; 503. Centrifugal impeller; 6. Drive device; 7. Air nozzle; 8. Directional block; 9. Arc groove; 10. Adjusting ring; 11. Connecting rod; 12. F-type adjusting connecting rod; 13. Arc adjusting groove; 14. Adjusting bolt. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0014] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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 of this utility model. Furthermore, the terms "first," "second," etc., 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. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Example:

[0016] This utility model provides a low-volume air pulverizer, which ensures sufficient pulverization effect while reducing air consumption, thus saving air supply and reducing equipment operating costs. To achieve the structural function of the device, it includes a disc-shaped base 1. Specifically, a sealing cover 2 is attached to the base 1 to form an annular sealed cavity. To pulverize within the cavity and facilitate material feeding and discharging, a discharge pipe 3 is connected to the center of the sealing cover 2, and a feed pipe 4 is connected to the side of the sealing cover 2. (Refer to...) Figure 1 As shown, after the material is fed through the feed pipe 4, it is crushed and finally discharged through the discharge pipe 3. In order to achieve screening of the crushed material, a centrifugal wheel 5 is rotatably installed in the middle of the chassis 1. Figure 2 , Figure 6 as well as Figure 8 As shown, the centrifugal wheel 5 includes two layers of spaced positioning plates 501, and multiple centrifugal blades 503 are arranged in a circular array between the two positioning plates 501 with the central axis of the positioning plates 501 as the center. The direction of the centrifugal blades 503 is as follows: Figure 6 As shown, gaps are formed between adjacent blades to allow gas to pass through, so that the pulverized particles are carried through by the airflow. At this time, the positioning plate 501 located at the top and the top of the sealing cover 2 are rotated and sealed together. The positioning plate 501 is equipped with a discharge port connected to the discharge pipe 3, allowing the pulverized material to be discharged and collected from the discharge pipe 3 through the discharge port. To ensure the material is conveyed to the centrifugal blade 503 for pulverization, multiple air nozzles 7 are arranged in a circular array on the outer periphery of the chassis 1. Air is blown between the centrifugal blades, forming a ring-shaped vortex within the sealed enclosure 2. The material is gradually crushed by following the airflow, and can be further crushed and knocked back when it reaches the centrifugal impeller 503, thus providing an additional crushing method to reduce the required air intake. To access the centrifugal impeller 503, a drive device 6 for rotating the centrifugal wheel 5 can be installed on one side of the chassis 1. This can be achieved using a servo motor; other specific forms are not limited here. In this case, the drive device 6 drives the centrifugal wheel 5 to generate airflow from the inside out. Figure 6 As shown, when the centrifugal blade 503 rotates counterclockwise, it generates a layer of low-power vortex around its periphery. This serves two purposes: firstly, it coordinates with the overall gas flow direction within the sealing cover 2 to accelerate the flow; secondly, it enhances the vortex's effect on crushing and hindering the entry of materials, preventing large particles from directly passing through the gap between adjacent centrifugal blades 503 and being discharged. It is important to note that to ensure the centrifugal blade 503 provides obstructing airflow into the cavity during rotation, the angle between the generated airflow direction and the airflow direction generated by the nearest air nozzle 7 should be less than 180°. The specific shape and configuration are not limited. Furthermore, to prevent the air nozzle 7 from directly blowing material out and causing it to break through the gap between adjacent centrifugal blades 503, the centrifugal blade 503 can be configured with an overall arc-shaped design, such as... Figure 6 As shown, this design avoids direct contact between the material entering the gap and the air nozzle 7's blowing roller, thereby increasing the distance the material travels into the gap and reducing obstruction. This makes it easier to intercept large particles on the outside of the centrifugal wheel 5. In addition, the arc-shaped surface design guides the particles out from the arc edge of the blade during rotation, avoiding direct impact on the flat surface and increasing wear on the blade, which helps to extend the service life of the blade.

[0017] This utility model provides a low-volume air pulverizer. To facilitate assembly of the chassis and other structures, the chassis 1 can be configured as two interconnected panels 101. (Refer to...) Figure 2 As shown, the two splicing plates 101 are spliced ​​together to form an opening for the shaft of the centrifugal wheel 5 to pass through, and the two splicing plates 101 can be easily assembled by locking them with bolts.

[0018] This utility model provides a low-volume air pulverizer. To avoid gaps or excessive friction at the mating position of the positioning plate 501 and the sealing cover 2, an annular oil groove 502 is provided on the upper positioning plate 501. The oil groove 502 is used to provide an oil film that can form a seal and lubricate, thereby ensuring that the material can pass through the gap between adjacent centrifugal blades 503. At this time, a rib is provided on the inner side of the sealing cover 2 to rotate and cooperate with the annular oil groove 502, and a more stable contact sealing surface is formed by the rib.

[0019] This utility model embodiment provides a low-volume air pulverizer. The blowing direction of the air nozzle 7 and the matching angle of the centrifugal wheel 5 play a crucial role in the pulverizing performance and the required air intake volume. To facilitate the exploration of the most suitable blowing angle, the blowing direction of the air nozzle 7 can be configured to be adjustable. Specifically, multiple cylindrical grooves are arranged in a circular array on the side of the chassis 1, and... Figure 2 as well as Figure 7As shown, each cylindrical groove is equipped with a directional block 8 for sealing and rotatable fitting. The directional block 8 is provided with an air hole, with the two ends of the air hole located on the inner and outer sides of the sealing cover 2 respectively. Each air nozzle 7 is connected and installed in the corresponding air hole of the directional block 8. When it is necessary to adjust the blowing direction of the air nozzle 7, the rotation position of the directional block 8 can be changed directly, or the direction of the air nozzle 7 can be directly adjusted to make it located at the optimal working angle.

[0020] This utility model provides a low-volume air pulverizer. Since multiple air nozzles 7 are arranged in a circular array, and the optimal air blowing direction also needs to meet the distribution of this circular array, a synchronous adjustment method is provided to avoid uneven air blowing direction caused by different adjustment angles of the different air nozzles 7. Specifically, an adjustment ring 10 is rotatably mounted below the chassis 1. Figure 3 as well as Figure 4 As shown, the central axis of the adjusting ring 10 coincides with the central axis of the chassis 1. Multiple connecting rods 11 are rotatably mounted on the adjusting ring 10. At the same time, multiple arc grooves 9 are respectively opened at the bottom of the chassis 1 with the axis of each cylindrical groove as the center. At the bottom of each adjusting block 8, a shaft protruding from the bottom surface of the chassis 1 is provided as a connecting joint. An F-type adjusting rod 12 is rotatably mounted on each connecting joint. One end of the F-type adjusting rod 12 is rotatably limited in the arc groove 9 and connected to the adjusting block 8. The other end is hinged to the end of the connecting rod 11. When adjustment is required, the operator directly rotates the adjusting ring 10, and the connecting rod 11 drives the F-type adjusting rod 12 to rotate. Multiple F-type adjusting rods 12 can synchronously drive the adjusting ring 10 to rotate, thereby synchronously adjusting the blowing direction. In order to position the adjusting ring 10 after rotation, an arc-shaped adjusting groove 13 can be provided on the adjusting ring 10. At this time, by providing an adjusting bolt 14 located in the arc-shaped adjusting groove 13 at the bottom of the chassis 1, the bolt structure can be used to lock it, ensuring that the blowing direction is stable and does not deviate.

[0021] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A low-volume air pulverizer, characterized in that, The system includes a disc-shaped chassis (1), a sealing cover (2) attached to the chassis (1) to form an annular cavity between the chassis (1) and the sealing cover (2), a discharge pipe (3) connected to the center of the sealing cover (2), and a feed pipe (4) connected to the side of the sealing cover (2). A centrifugal wheel (5) is rotatably mounted in the center of the chassis (1). The centrifugal wheel (5) includes two spaced positioning plates (501). Multiple positioning plates (501) are arranged in a circular array with the central axis of the positioning plates (501) as the center. The centrifugal impeller (503) is located at the top of the positioning plate (501) and the sealing cover (2) and rotates and seals. The positioning plate (501) is provided with a discharge port connected to the discharge pipe (3). Multiple air nozzles (7) are arranged in a circular array on the outer periphery of the chassis (1). A drive device (6) for driving the centrifugal wheel (5) to rotate is provided on one side of the chassis (1). The drive device (6) is used to drive the centrifugal wheel (5) to generate wind from the inside to the outside and the angle between the wind direction generated and the wind direction generated by the nearest air nozzle (7) is less than 180°.

2. The low-volume air pulverizer according to claim 1, characterized in that, The centrifugal rotor (503) has an overall arc-shaped design.

3. A low-volume air pulverizer according to claim 1, characterized in that, The chassis (1) is composed of two splicing discs (101) that are spliced ​​together. The middle part of the two splicing discs (101) is spliced ​​together to form a passage for the shaft of the centrifugal wheel (5) to pass through. The two splicing discs (101) are locked together by bolts.

4. A low-volume air pulverizer according to claim 1, characterized in that, The positioning plate (501) located above is also provided with an annular oil groove (502), and the inner side of the sealing cover (2) is provided with a rib that rotates with the annular oil groove (502).

5. A low-volume air pulverizer according to claim 1, characterized in that, The chassis (1) has multiple cylindrical grooves arranged in a circular array on its side. Each cylindrical groove is fitted with a rotatable adjustment block (8) in a sealed manner. The adjustment block (8) is provided with an air hole. The two ends of the air hole are located on the inner and outer sides of the sealing cover (2). Each air nozzle (7) is connected to the air hole of the corresponding adjustment block (8).

6. A low-volume air pulverizer according to claim 5, characterized in that, An adjusting ring (10) is rotatably fitted below the chassis (1). The central axis of the adjusting ring (10) coincides with the central axis of the chassis (1). The adjusting ring (10) is rotatably fitted with multiple connecting rods (11). Multiple arc grooves (9) are respectively opened at the lower position of the chassis (1) with the axis of each cylindrical groove as the center. Each adjusting block (8) has a shaft protruding from the bottom surface of the chassis (1) as a connecting joint. Each connecting joint is rotatably fitted with an F-type adjusting rod (12). One end of the F-type adjusting rod (12) is rotatably limited in the arc groove (9) and connected to the adjusting block (8). The other end is hinged to the end of the connecting rod (11).

7. A low-volume air pulverizer according to claim 6, characterized in that, The adjusting ring (10) is provided with an arc adjusting groove (13), and the bottom of the chassis (1) is provided with an adjusting bolt (14) located in the arc adjusting groove (13).

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