Grinding cylinder and grinding device

Abstract

The utility model discloses a grinding cylinder and a grinding device. The grinding cylinder comprises a grinding cylinder body, a heat dissipation cylinder body and a turbulent flow unit. The heat dissipation barrel is arranged on the outer side of the grinding barrel in a sleeving mode, a heat dissipation channel is formed between the heat dissipation barrel and the grinding barrel, a refrigerant inlet and a refrigerant outlet are formed in the two ends, in the axial direction of the grinding barrel, of the heat dissipation barrel, and the heat dissipation channel is communicated with the refrigerant inlet and the refrigerant outlet. And the turbulent flow unit is arranged in the heat dissipation channel and is used for carrying out turbulent flow on the cooling medium in the heat dissipation channel. According to the grinding cylinder, the turbulent flow unit is arranged in the heat dissipation channel, so that the turbulent flow unit can convert the cooling medium in the heat dissipation channel from a laminar flow state to a turbulent flow state, the contact area and the contact time of the cooling medium and the grinding cylinder are increased, the heat absorbed by the cooling medium is increased, and the service life of the grinding cylinder is prolonged. And the cooling efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of material grinding technology, and in particular to a grinding cylinder and a grinding device. Background Technology

[0002] Grinding devices are used to grind materials. The working principle of a grinding device involves placing grinding media and materials inside a grinding cylinder, where the grinding media grinds the materials into a product of suitable particle size. However, grinding devices generate a large amount of heat during the grinding process, which affects the quality of the material. Existing grinding devices have cooling channels on the outer wall of the grinding cylinder; however, the cooling medium within these channels forms a stable laminar flow, resulting in low heat exchange efficiency between the cooling medium and the grinding cylinder, leading to poor cooling efficiency and effect. Utility Model Content

[0003] In view of this, one objective of this utility model is to provide a grinding cylinder and a grinding device to solve the technical problem that the cooling medium in the heat dissipation channel of the existing grinding device forms a stable laminar flow, resulting in low heat exchange efficiency between the cooling medium and the grinding cylinder, and poor cooling efficiency and cooling effect.

[0004] In a first aspect, this utility model provides a grinding cylinder, including a grinding cylinder body, a heat dissipation cylinder body, and a flow-turbulence unit. The heat dissipation cylinder body is sleeved on the outside of the grinding cylinder body, forming a heat dissipation channel between the two bodies. The heat dissipation cylinder body has a refrigerant inlet and a refrigerant outlet at two ends along the axial direction of the grinding cylinder, and the heat dissipation channel is connected to the refrigerant inlet and the refrigerant outlet. The flow-turbulence unit is disposed within the heat dissipation channel and is used to turbulent the cooling medium within the heat dissipation channel.

[0005] In conjunction with the first aspect, in some implementations of the first aspect, the grinding cylinder further includes a heat dissipation plate, which is disposed between the grinding cylinder body and the heat dissipation cylinder body, and forms the heat dissipation channel with the grinding cylinder body and the heat dissipation cylinder body. The heat dissipation plate is disposed independently of the grinding cylinder body and the heat dissipation cylinder body; or, the heat dissipation plate is integrally formed with at least one of the grinding cylinder body and the heat dissipation cylinder body.

[0006] In conjunction with the first aspect, in some implementations of the first aspect, the heat dissipation plate is spirally arranged around the central axis of the grinding cylinder, and the turbulence unit includes a plurality of baffles, the plurality of baffles being protruding from at least one of the heat dissipation plate, the grinding cylinder and the heat dissipation cylinder, and the extending direction of the baffles intersects with the spiral direction of the heat dissipation plate.

[0007] In conjunction with the first aspect, in some implementations of the first aspect, the heat dissipation plate includes a plurality of spiral rings, two adjacent spiral rings include a first spiral ring and a second spiral ring, and the plurality of baffles include a first baffle and a second baffle. The first baffle protrudes from the surface of the first spiral ring facing the second spiral ring; the second baffle protrudes from the surface of the second spiral ring facing the first spiral ring, and the first baffle and the second baffle are alternately arranged along the spiral direction of the heat dissipation plate.

[0008] In conjunction with the first aspect, in some implementations of the first aspect, the heat dissipation plate includes a plurality of spiral rings, and the plurality of baffles include a first baffle and a second baffle. The first baffle is connected between two adjacent spiral rings, and the second baffle is connected to the grinding cylinder and / or the heat dissipation cylinder. The first baffle is provided with a first opening, and the second baffle is provided with a second opening. The number of first openings is greater than the number of second openings, and the first openings and the second openings are staggered along the spiral direction of the heat dissipation plate.

[0009] In conjunction with the first aspect, in some implementations of the first aspect, along the extending direction of the baffle, two first openings are provided at the two ends of the first spoiler or at a position adjacent to the two ends of the first spoiler, and a second opening is provided at the middle of the second spoiler or at a position adjacent to the middle of the second spoiler.

[0010] In conjunction with the first aspect, in some implementations of the first aspect, along the spiral direction of the heat dissipation plate, the arrangement density of the baffles near the refrigerant inlet is less than the arrangement density of the baffles away from the refrigerant inlet; or, along the spiral direction of the heat dissipation plate, the arrangement density of the baffles near the refrigerant inlet is equal to the arrangement density of the baffles away from the refrigerant inlet.

[0011] In conjunction with the first aspect, in some implementations of the first aspect, the heat dissipation plate and / or the turbulence unit are provided with turbulence holes that communicate with the heat dissipation channel.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the turbulence holes are provided in multiple locations along the radial direction of the grinding cylinder, and the area of ​​the axial cross-section of the turbulence hole closer to the grinding cylinder is smaller than the area of ​​the turbulence hole farther from the grinding cylinder; and / or, the number of turbulence holes closer to the grinding cylinder is greater than the number of turbulence holes farther from the grinding cylinder along the radial direction of the grinding cylinder.

[0013] In conjunction with the first aspect, in some implementations of the first aspect, the turbulence holes are provided in a plurality of manner, and the plurality of turbulence holes are arranged in a staggered manner along the spiral direction of the heat dissipation plate.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the axial cross-section of the turbulence hole is semi-circular, circular, elliptical, polygonal, V-shaped, C-shaped, U-shaped, or S-shaped.

[0015] In conjunction with the first aspect, in some implementations of the first aspect, the turbulence unit is movably disposed within the heat dissipation channel and configured as an elastic telescopic mesh.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the heat dissipation cylinder includes multiple sleeves, which are arranged and fixedly connected along the axial direction of the grinding cylinder. Each sleeve and the grinding cylinder form a heat dissipation channel and are provided with a refrigerant inlet and a refrigerant outlet.

[0017] Secondly, this utility model provides a grinding device, including a feed pipe and a grinding cylinder as described above, wherein the feed pipe is connected through the grinding cylinder.

[0018] The grinding cylinder and grinding device provided by this utility model are based on the setting of a turbulence unit in the heat dissipation channel, so that the turbulence unit can change the cooling medium in the heat dissipation channel from a laminar flow state to a turbulent flow state, thereby increasing the contact area and contact time between the cooling medium and the grinding cylinder, thereby increasing the heat absorbed by the cooling medium and improving the cooling efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a cross-sectional view of the grinding device provided in an embodiment of the present invention.

[0021] Figure 2 yes Figure 1 A cross-sectional view of a partial structure of the grinding cylinder of the grinding apparatus in the first embodiment.

[0022] Figure 3 yes Figure 1 A cross-sectional view of a partial structure of the grinding cylinder of the grinding apparatus in the second embodiment.

[0023] Figure 4 yes Figure 1 A cross-sectional view of a third embodiment of the partial structure of the grinding cylinder of the grinding apparatus.

[0024] Figure 5 yes Figure 1 A cross-sectional view of a partial structure of the grinding cylinder of the grinding apparatus in the fourth embodiment.

[0025] Figure 6 yes Figure 5 A schematic diagram of a partial structure of another embodiment of the turbulence unit of the grinding cylinder.

[0026] Explanation of main reference numerals: Grinding device-1; Grinding cylinder-100; Heat dissipation channel-101; Feed pipe-200; Grinding cylinder body-10; Heat dissipation cylinder body-30; Refrigerant inlet-301; Refrigerant outlet-302; Sleeve-31; Inner cylinder-311; Outer cylinder-312; Flange seat-32; Baffle unit-50; Baffle hole-501; Baffle-51; First baffle plate-511; First opening-5110; Second baffle plate-512; Second opening-5120; Baffle part-53; Connecting part-55; Heat dissipation plate-60; Threaded ring-61; First threaded ring-611; Second threaded ring-612; Central axis-P; Axial direction-X; Radial direction-Y.

[0027] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0029] It is understood that the terminology in the specification, claims, and accompanying drawings of this utility model is for describing specific embodiments only and is not intended to limit the utility model. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Unless the context clearly states otherwise, the singular forms "a" and "described" are also intended to include the plural forms. The term "comprising," and any variations thereof, are intended to cover non-exclusive inclusion. Furthermore, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of this utility model, wherein terms indicating direction such as up, down, left, and right refer only to the position of the illustrated structure in the corresponding drawings. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set on" 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; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between 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.

[0030] The following description describes preferred embodiments of the present invention; however, the foregoing description is intended to illustrate the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0031] Please see Figure 1 , Figure 1 This is a cross-sectional view of the grinding device 1 provided in this embodiment of the present invention. The grinding device 1 includes a grinding cylinder 100 and a feed pipe 200. The feed pipe 200 is connected through the grinding cylinder 100. The feed pipe 200 is used to transport the material to be ground into the grinding cylinder 100. The grinding cylinder 100 contains grinding media and the material to be ground. Thus, the material to be ground and the grinding media undergo impact and friction to grind the material with a larger particle size into a material with a smaller particle size, thereby achieving the required particle size and uniformity of the material.

[0032] For example, in this embodiment, the grinding device 1 is configured as a horizontal grinding device. Specifically, the central axis P of the grinding cylinder 100 is parallel to the horizontal plane. Of course, in some embodiments, the grinding device 1 can also be configured as a vertical grinding device. Specifically, the central axis P of the grinding cylinder 100 is perpendicular to the horizontal plane.

[0033] In this embodiment, the grinding cylinder 100 is configured with a cylindrical body, thereby improving the smoothness of movement of the grinding media and the material to be ground within the grinding cylinder 100, reducing wear on the grinding cylinder 100, extending the service life of the grinding cylinder 100 and the grinding media, and improving the uniformity of the material to be ground after grinding. The radial cross-section of the grinding cylinder 100 is circular. In other embodiments, the grinding cylinder 100 may also be configured as, but is not limited to, a spherical cylinder, a prismatic cylinder, or other regular or irregular cylinders; this embodiment of the present invention does not impose specific limitations.

[0034] The feed pipe 200 is located at the top of the grinding cylinder 100, allowing the material to be ground to quickly enter the grinding cylinder 100 under gravity, thus improving the conveying efficiency of the material. The central axis of the feed pipe 200 is inclined upward relative to the central axis P of the grinding cylinder 100. For example, the central axis of the feed pipe 200 and the central axis P of the grinding cylinder 100 can be perpendicular; or, the central axis of the feed pipe 200 and the central axis P of the grinding cylinder 100 can also be at an acute angle. This embodiment of the invention does not impose specific limitations.

[0035] The material to be ground includes, but is not limited to, battery materials, food materials, pharmaceutical materials, fertilizer materials, and building materials. This embodiment of the invention does not limit the material to be ground. For example, in this embodiment, the material to be ground is a battery material. Battery materials include, but are not limited to, positive electrode materials, negative electrode materials, conductive agents, or dispersants; or, various materials are mixed to form a battery mixture.

[0036] Abrasive media are small spheres or beads used to grind and disperse particulate materials. The materials of abrasive media include, but are not limited to, at least one of zirconium oxide, alumina, and zirconium silicate. Abrasive media typically possess high hardness, good wear resistance, chemical stability, and a structure suitable for a variety of grinding applications.

[0037] It should be noted that, Figure 1 The purpose is only to schematically describe the arrangement between the grinding cylinder 100 and the feed pipe 200, and is not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 This illustration of the grinding device 1 in an embodiment of the present invention is merely a structural representation and does not constitute a specific limitation on the grinding device 1. In other embodiments of the present invention, the grinding device 1 may include components that are more advanced than those described above. Figure 1 The grinding device 1 may include more or fewer components, or combinations of certain components, or different components, such as grinding apparatus 1, and may also include, but is not limited to, a stirring element, a temperature sensor, etc. The stirring element is used to stir the material to be ground and the grinding media inside the grinding cylinder 100, and the temperature sensor is used to detect the temperature inside the grinding cylinder 100.

[0038] For the sake of accuracy, all references to direction in this article should be expressed in terms of direction. Figure 1 For reference, "axial direction X" refers to the direction parallel to the central axis P of the grinding cylinder 100, i.e., the left-right direction (where the positive X-axis is left); the term "radial direction Y" refers to the direction perpendicular to the central axis P of the grinding cylinder 100, i.e., along the radius of the cross-section of the grinding cylinder 100, also known as the up-down direction (where the positive Y-axis is up); the term "circumferential direction" refers to the circumferential direction of the grinding cylinder 100, i.e., the direction surrounding the central axis P of the grinding cylinder 100. The axial direction X, radial direction Y, and circumferential direction together constitute the three orthogonal directions of the grinding cylinder 100. The axial direction X, radial direction Y, and circumferential direction of the grinding cylinder 100 can be customized according to the specific structure of the product and the perspective presented in the accompanying drawings; this utility model does not impose specific limitations. For ease of description, the directions such as up, down, left, and right in this utility model are relative positions and do not constitute a limitation on implementation.

[0039] Please refer to the following: Figure 1 and Figure 2 , Figure 2 yes Figure 1 This is a cross-sectional view of a partial structure of the grinding cylinder 100 of the grinding apparatus 1 in a first embodiment. The grinding cylinder 100 includes a grinding cylinder body 10, a heat dissipation cylinder body 30, and a turbulence-inducing unit 50. The heat dissipation cylinder body 30 is sleeved on the outside of the grinding cylinder body 10, forming a heat dissipation channel 101 between them. The heat dissipation cylinder body 30 has a refrigerant inlet 301 and a refrigerant outlet 302 at both ends along the axial direction X of the grinding cylinder 100, and the heat dissipation channel 101 communicates with the refrigerant inlet 301 and the refrigerant outlet 302. The turbulence-inducing unit 50 is disposed within the heat dissipation channel 101 and is used to turbulent the cooling medium within the heat dissipation channel 101.

[0040] The grinding cylinder 100 and grinding device 1 provided by this utility model are based on the provision of a turbulence unit 50 in the heat dissipation channel 101, so that the turbulence unit 50 can convert the cooling medium in the heat dissipation channel 101 from a laminar flow state to a turbulent flow state, thereby increasing the contact area and contact time between the cooling medium and the grinding cylinder 100, thereby increasing the heat absorbed by the cooling medium and improving the cooling efficiency.

[0041] Understandably, grinding media generate a large amount of heat during the grinding process. Excessive heat can affect the chemical properties and other properties of the material being ground. This invention addresses this by providing a heat dissipation sleeve 31 on the outside of the grinding cylinder 10, allowing the cooling medium to carry away the heat from inside the grinding cylinder 100, thereby improving the quality of the material being ground. The cooling medium includes, but is not limited to, fluids such as water, gas, and oil.

[0042] In some embodiments, the grinding cylinder 100 further includes a heat dissipation plate 60. The heat dissipation plate 60 is disposed between the grinding cylinder body 10 and the heat dissipation cylinder body 30, and forms a heat dissipation channel 101 with the grinding cylinder body 10 and the heat dissipation cylinder body 30. Thus, the heat dissipation plate 60 provides a flow channel for the cooling medium, thereby reducing the resistance to the cooling medium, reducing the pressure drop between the refrigerant inlet 301 and the refrigerant outlet 302, and reducing energy loss while ensuring heat exchange efficiency. The heat dissipation plate 60 is disposed independently of the grinding cylinder body 10 and the heat dissipation cylinder body 30; or, the heat dissipation plate 60 is integrally formed with at least one of the grinding cylinder body 10 and the heat dissipation cylinder body 30. When the heat dissipation plate 60 is disposed independently of the grinding cylinder body 10 and the heat dissipation cylinder body 30, it facilitates the assembly, maintenance, and replacement of the heat dissipation plate 60 and the grinding cylinder body 10 and the heat dissipation cylinder body 30, and reduces the processing difficulty of the heat dissipation plate 60 and the grinding cylinder body 10 and the heat dissipation cylinder body 30. When the heat dissipation plate 60 is integrally formed with at least one of the grinding cylinder 10 and the heat dissipation cylinder 30, the connection reliability and stability between the heat dissipation plate 60 and the grinding cylinder 10 and the heat dissipation cylinder 30 are improved. For example, in this embodiment, the heat dissipation plate 60 and the heat dissipation cylinder 30 are integrally formed.

[0043] Exemplarily, in this embodiment, the heat dissipation plate 60 is spirally arranged around the central axis P of the grinding cylinder 100. Therefore, based on the spiral arrangement of the heat dissipation channel 101, the cooling medium can form turbulence within the heat dissipation channel 101, increasing the fluid turbulence and thus improving heat transfer efficiency. On the other hand, since the cooling medium flows spirally within the spiral heat dissipation channel 101, dirt is less likely to accumulate, and the turbulence and shearing action of the cooling medium helps with self-cleaning, reducing the frequency of cleaning and maintenance costs. The heat dissipation plate 60 may include one or more. The number of heat dissipation channels 101 may include one or more. Any adjacent heat dissipation plates 60 forming a heat dissipation channel 101 with the grinding cylinder 10 and the heat dissipation cylinder 30 can form a single heat dissipation channel 101. Of course, in some other embodiments, the heat dissipation plate 60 may also be arranged linearly or curvedly along the central axis P of the grinding cylinder 100.

[0044] The turbulence unit 50 includes multiple baffles 51. The multiple baffles 51 protrude from at least one of the heat dissipation plate 60, the grinding cylinder 10, and the heat dissipation cylinder 30, with the extending direction of the baffles 51 intersecting the helical direction of the heat dissipation plate 60. Therefore, based on the fact that the extending direction of the baffles 51 intersects the helical direction of the heat dissipation plate 60, on the one hand, the baffles 51 can increase the resistance of the cooling medium, prolong the residence time of the cooling medium in the heat dissipation channel 101, improve heat exchange efficiency, and enhance the heat dissipation effect; on the other hand, the baffles 51 can change the flow direction of the cooling medium, thereby causing turbulence in the cooling medium within the heat dissipation channel 101, increasing the heat absorbed by the cooling medium, and improving cooling efficiency.

[0045] For example, the extending direction of the baffle 51 is perpendicular to the spiral direction of the heat dissipation plate 60. Specifically, the extending direction of the baffle 51 and the spiral direction of the heat dissipation plate 60 form an angle with the opening facing or away from the flow direction of the cooling medium, wherein the angle is a right angle. Of course, in some embodiments, the angle can also be an acute angle or an obtuse angle, and this embodiment of the present invention does not specifically limit the angle.

[0046] It should be noted that the extension direction of the baffle 51 refers to the protruding direction of the baffle 51 on the heat dissipation plate 60, the grinding cylinder 10, or the heat dissipation cylinder 30. Specifically, within the axial section passing through the central axis P of the grinding cylinder 100, the extension direction of the baffle 51 refers to the extension direction of the long side of the axial section of the baffle 51. For example, in this embodiment, the baffle 51 protrudes from the side of the heat dissipation plate 60 facing the spiral central axis of the heat dissipation channel 101, and the extension direction of the baffle 51 is the arrangement direction of two adjacent spiral rings 61 in the heat dissipation plate 60.

[0047] In this embodiment, the baffle 51 can be configured as a flat plate, thereby making the force distribution of the baffle 51 relatively uniform, avoiding the problem of deformation or damage to the baffle 51 due to excessive local force, and facilitating the processing and manufacturing of the baffle 51. In some embodiments, the baffle 51 can also be configured as, but is not limited to, an arc-shaped plate, thereby giving the baffle 51 higher strength and load-bearing capacity, improving the connection strength between the baffle 51 and at least one of the heat dissipation plate 60, the grinding cylinder 10 and the heat dissipation cylinder 30, and realizing the guiding effect on the cooling medium.

[0048] The heat dissipation plate 60 includes a plurality of spiral rings 61. Two adjacent spiral rings 61 include a first spiral ring 611 and a second spiral ring 612. A plurality of baffles 51 include a first baffle 511 and a second baffle 512. In some embodiments, the first baffle 511 protrudes from the surface of the first spiral ring 611 facing the second spiral ring 612. The second baffle 512 protrudes from the surface of the second spiral ring 612 facing the first spiral ring 611. The first baffle 511 and the second baffle 512 are alternately arranged along the spiral direction of the heat dissipation plate 60. Therefore, on the one hand, the cooling medium can be evenly distributed within the heat dissipation channel 101, improving the uniformity of heat dissipation; on the other hand, the first baffle plate 511 and the second baffle plate 512 are alternately arranged along the spiral direction of the heat dissipation plate 60, increasing the resistance of the cooling medium within the heat dissipation channel 101. Furthermore, the cooling medium continuously changes its flow direction under the resistance of the first baffle plate 511 and the second baffle plate 512, thereby forming turbulence within the heat dissipation channel 101. Under turbulent conditions, the eddies in the cooling medium can lead to better heat distribution and increase the actual heat exchange area between the inner wall of the heat dissipation channel 101 and the cooling medium. Therefore, the strong flow state of the cooling medium enhances the heat conduction between the inner wall of the heat dissipation channel 101 and the cooling medium, and the heat is more evenly distributed on the inner wall of the heat dissipation channel 101, thereby improving the heat exchange efficiency and enhancing the heat dissipation effect.

[0049] It should be noted that the first spiral ring 611 and the second spiral ring 612, as well as the first baffle 511 and the second baffle 512, are merely for the convenience of describing the structure and are not intended to limit the technical solution. The first spiral ring 611 and the second spiral ring 612 are relative concepts and do not specifically refer to any two particular spiral rings 61 among the plurality of spiral rings 61. The first baffle 511 and the second baffle 512 are also relative concepts and do not specifically refer to any two particular baffles 51 among the plurality of baffles 51. In the embodiments of this application, the plurality of spiral rings 61 of the heat dissipation plate 60 are connected end to end and form a heat dissipation channel 101 with the grinding cylinder 10 and the heat dissipation cylinder 30, which connects the refrigerant inlet 301 and the refrigerant outlet 302.

[0050] Please refer to the following: Figure 1 , Figure 2 and Figure 3 , Figure 3 yes Figure 1A cross-sectional view of a partial structure of the grinding cylinder 100 of the grinding apparatus 1 in the second embodiment. In some embodiments, a first baffle 511 is connected between two adjacent spiral rings 61, and a second baffle 512 is connected to the grinding cylinder 10 and / or the heat dissipation cylinder 30. The first baffle 511 is provided with a first opening 5110, and the second baffle 512 is provided with a second opening 5120. The number of first openings 5110 is greater than the number of second openings 5120. The first openings 5110 and the second openings 5120 are staggered along the spiral direction of the heat dissipation plate 60. Therefore, on the one hand, since the number of first openings 5110 is greater than the number of second openings 5120, the first openings 5110 and the second openings 5120 can divide and merge the cooling medium, making the flow distribution of the fluid in the flow channel more uniform and accurate, thus improving the heat exchange efficiency of the cooling medium; on the other hand, the staggered arrangement of the first openings 5110 and the second openings 5120 can change the flow direction of the cooling medium, increase the turbulence velocity of the cooling medium, enhance the heat exchange efficiency between the cooling medium and the grinding cylinder 100, and improve the heat dissipation effect.

[0051] Along the extending direction of the baffle 51, two first openings 5110 are provided at or near the two ends of the first baffle 511, and a second opening 5120 is provided at or near the middle of the second baffle 512. Thus, by placing the first openings 5110 at the ends of the respective baffles 51 and the second opening 5120 at the middle of the respective baffles 51, the cooling medium can contact all positions of the grinding cylinder 100, improving the uniformity of heat dissipation.

[0052] It should be noted that in some other embodiments, the number and position of the first opening 5110 and the second opening 5120 can be set according to factors such as the spacing between two adjacent screw rings 61 and the specifications of the grinding cylinder 100. This utility model embodiment does not make specific limitations.

[0053] Along the spiral direction of the heat dissipation plate 60, the arrangement density of baffles 51 near the refrigerant inlet 301 is less than that away from the refrigerant inlet 301. Therefore, by setting the arrangement density of baffles 51 near the refrigerant inlet 301 to be less than that away from the refrigerant inlet 301, the contact time and contact area between the refrigerant and the portion of the grinding cylinder 100 near the refrigerant outlet 302 are increased, thereby improving the heat dissipation effect.

[0054] Of course, in some embodiments, along the spiral direction of the heat dissipation plate 60, the arrangement density of the baffles 51 near the refrigerant inlet 301 can be equal to the arrangement density of the baffles 51 away from the refrigerant inlet 301, thereby reducing the manufacturing difficulty of the turbulence unit 50. The arrangement density of the baffles 51 can be set according to factors such as the specifications of the grinding cylinder 100 and the temperature parameter requirements of the material to be ground, and this embodiment of the present invention does not impose specific limitations.

[0055] Please refer to the following: Figure 1 and Figure 4 , Figure 4 yes Figure 1 This is a cross-sectional view of a partial structure of the grinding cylinder 100 of the grinding apparatus 1 in a third embodiment. The heat dissipation plate 60 and / or the turbulence-dissipating unit 50 are provided with turbulence-dissipating holes 501 communicating with the heat dissipation channel 101. Therefore, the arrangement of the turbulence-dissipating unit 50 and the turbulence-dissipating holes 501 allows the cooling medium to flow randomly within the heat dissipation channel 101, thus sufficiently agitating the cooling medium, thereby improving the turbulence effect and increasing heat exchange efficiency. In the third embodiment, the heat dissipation plate 60 is provided with turbulence-dissipating holes 501 communicating with the heat dissipation channel 101. Along the spiral direction of the heat dissipation plate 60, the turbulence-dissipating holes 501 can be located between two adjacent baffles 51 in the turbulence-dissipating unit 50, thereby improving the structural strength of the heat dissipation plate 60.

[0056] In some embodiments, multiple turbulence holes 501 are provided along the radial direction Y of the grinding cylinder 100. Along the radial direction Y of the grinding cylinder 100, the area of ​​the axial cross-section of the turbulence holes 501 closer to the grinding cylinder 10 is smaller than the area of ​​the axial cross-section of the turbulence holes 501 farther from the grinding cylinder 10; and / or, along the radial direction Y of the grinding cylinder 100, the number of turbulence holes 501 closer to the grinding cylinder 10 is greater than the number of turbulence holes 501 farther from the grinding cylinder 10. It can be understood that the smaller the area of ​​the axial cross-section of the turbulence holes 501, the better the shearing effect of the turbulence holes 501 on the water flow, and the better the turbulence effect; the more turbulence holes 501 there are, the better the shearing effect of the turbulence holes 501 on the water flow, and the better the turbulence effect. Therefore, the temperature is higher on the side closer to the grinding cylinder 10, thus improving the heat exchange efficiency between the cooling medium and the grinding cylinder 10 by setting the area and number of the axial cross-section of the turbulence holes 501.

[0057] In some embodiments, a plurality of turbulence holes 501 are provided, and the plurality of turbulence holes 501 are staggered along the spiral direction of the heat dissipation plate 60. Thus, by dispersing the plurality of turbulence holes 501, the turbulence effect on the cooling medium in the heat dissipation channel 101 is improved, thereby improving the heat exchange efficiency between the cooling medium and the grinding cylinder 10.

[0058] The axial cross-sectional shape of the turbulence hole 501 can be, but is not limited to, semi-circular, circular, elliptical, polygonal, V-shaped, C-shaped, U-shaped, or S-shaped. The axial cross-sectional shape of the turbulence hole 501 can be set according to actual conditions, and this application embodiment does not impose specific limitations.

[0059] Please refer to the following: Figure 1 and Figure 5 , Figure 5 yes Figure 1 This is a cross-sectional view of a partial structure of the grinding cylinder 100 of the grinding apparatus 1 in the fourth embodiment. The turbulence-dissipating unit 50 is movably disposed within the heat dissipation channel 101 and configured as an elastic expansive mesh. Thus, on the one hand, the elastic expansive mesh allows the cooling medium to flow randomly within the heat dissipation channel 101, sufficiently agitating the cooling medium, thereby enhancing the turbulence effect and improving heat exchange efficiency; on the other hand, the elastic expansive mesh simplifies the structure of the grinding cylinder 100 and reduces the difficulty of manufacturing the grinding cylinder 100.

[0060] For example, in this embodiment, the elastic stretch net can also be configured as an irregular mesh structure. Please refer to [further details omitted]. Figure 5 and Figure 6 , Figure 6 yes Figure 5 A schematic diagram of a partial structure of the turbulence unit 50 in another embodiment of the grinding cylinder 100 is shown. In some embodiments, the elastic stretchable mesh can be configured as a regular mesh structure. For example, the turbulence unit 50 includes a plurality of turbulence portions 53 and a connecting portion 55 connecting two adjacent turbulence portions 53. Along the extending direction of the heat dissipation channel 101, the plurality of turbulence portions 53 are arranged at intervals, and the outer diameter of the turbulence portions 53 is larger than the outer diameter of the connecting portion 55. Thus, the flow of the cooling medium is prevented from being blocked by the accumulated elastic stretchable mesh. By distributing the plurality of turbulence portions 53 at intervals within the heat dissipation channel 101, the turbulence portions 53 convert the cooling medium from a laminar flow state to a turbulent flow state, while reducing the resistance of the cooling medium within the heat dissipation channel 101, thereby improving the heat dissipation efficiency.

[0061] It should be noted that the outer diameter of the turbulence-dissipating part 53 being larger than the outer diameter of the connecting part 55 means that the projected area of ​​the turbulence-dissipating part 53 in the extension direction parallel to the heat dissipation channel 101 is larger than the projected area of ​​the connecting part 55 in the extension direction parallel to the heat dissipation channel 101. In this embodiment, the heat dissipation channel 101 is spirally arranged, that is, the extension direction of the heat dissipation channel 101 is parallel to the extension direction of the heat dissipation plate 60.

[0062] Please refer to the following: Figures 2 to 5The flow area of ​​the heat dissipation channel 101 remains constant along the spiral direction of the heat dissipation plate 60. Of course, in some embodiments, the flow area of ​​the heat dissipation channel 101 is gradually varied along the spiral direction of the heat dissipation plate 60. Therefore, when the width of the heat dissipation channel 101 remains constant in the direction perpendicular to the flow of the cooling medium, it facilitates the manufacturing of the grinding cylinder 100; when the width of the heat dissipation channel 101 is gradually varied in the direction perpendicular to the flow of the cooling medium, the flow of the cooling medium can be optimized, thereby helping to reduce heat accumulation in a certain area and improving the heat dissipation effect. It should be noted that the flow area of ​​the heat dissipation channel 101 refers to the effective area through which the cooling medium flowing within the heat dissipation channel 101 can pass.

[0063] The flow area of ​​the heat dissipation channel 101 is gradually varied along the spiral direction of the heat dissipation plate 60. This includes, but is not limited to, a stepped gradual change in the flow area of ​​the heat dissipation channel 101 along the spiral direction of the heat dissipation plate 60; or, a non-stepped gradual change, such as a linear gradual change. The flow area of ​​a portion of the channel segment of the heat dissipation channel 101 varies gradually along the spiral direction of the heat dissipation plate 60. In some embodiments, the flow area of ​​all channel segments of the heat dissipation channel 101 varies gradually along the spiral direction of the heat dissipation plate 60. The flow area of ​​the heat dissipation channel 101 along the spiral direction of the heat dissipation plate 60 can be set according to actual conditions, and this utility model does not impose specific limitations.

[0064] The grinding cylinder 10 is configured as a heat transfer structure, so that the grinding cylinder 10 can transfer heat to the cooling medium between the grinding cylinder 10 and the heat dissipation cylinder 30, and the heat is carried away by the flow of the cooling medium. Of course, in some embodiments, the heat dissipation cylinder 30 and the turbulence unit 50 can also be configured as heat transfer structures, thereby further increasing the heat exchange area between the cooling medium and the grinding cylinder 100 and improving the heat dissipation effect.

[0065] It should be noted that the elastic telescopic net can be applied to the grinding cylinder 100 in the first to third embodiments, that is, the turbulence unit 50 of the grinding cylinder 100 includes a baffle 51 and an elastic telescopic net; or, the turbulence unit 50 includes an elastic telescopic net, and the heat dissipation plate 60 is provided with turbulence holes 501.

[0066] Please refer to it again. Figure 1 and Figure 2The heat dissipation cylinder 30 includes multiple sleeves 31, which are arranged and fixedly connected along the axial direction X of the grinding cylinder 100. Each sleeve 31 forms a heat dissipation channel 101 with the grinding cylinder 10 and is provided with a refrigerant inlet 301 and a refrigerant outlet 302. Thus, when multiple sleeves 31 are connected to the grinding cylinder 10 and form multiple heat dissipation channels 101, the grinding cylinder 100 can achieve zoned heat dissipation, improving heat dissipation efficiency and effect. In this embodiment, the multiple sleeves 31 are arranged independently and detachably fixedly connected. In some embodiments, the multiple sleeves 31 can also be integrally formed.

[0067] Please refer to it again. Figure 1 The sleeve 31 includes an inner cylinder 311 and an outer cylinder 312. Along the radial direction Y of the grinding cylinder 100, the inner cylinder 311 is disposed between the grinding cylinder body 10 and the outer cylinder 312, and the inner cylinder 311 and the outer cylinder 312 are sealed together to form a heat dissipation channel 101. Therefore, placing the heat dissipation channel 101 between the inner cylinder 311 and the outer cylinder 312 of the heat dissipation cylinder body 30 facilitates the processing, manufacturing, and alignment of the heat dissipation cylinder body 30, as well as facilitating the testing and ensuring the sealing performance of the heat dissipation channel 101.

[0068] In this embodiment, the inner cylinder 311 is configured as a heat transfer structure, while the outer cylinder 312 is configured as a non-heat transfer structure. Therefore, on the one hand, the grinding cylinder 10 can absorb the heat generated by the material during the grinding process, and the inner cylinder 311 can absorb the heat from the grinding cylinder 10, which is then carried away by the cooling medium within the heat dissipation channel 101. On the other hand, the high temperature of the outer cylinder 312 prevents burns to workers, thus improving the safety of using the grinding cylinder 100. Of course, in some embodiments, the outer cylinder 312 can also be configured as a heat transfer structure, allowing it to absorb heat and carry it away through the air, thereby improving the heat dissipation effect of the grinding cylinder 100.

[0069] For example, in this embodiment, two flange seats 32 are respectively provided at both ends of the sleeve 31 along the axial direction X of the grinding cylinder 100. Two adjacent sleeves 31 are detachably connected by the flange seats 32. Thus, the flange seats 32 enable detachable connection between multiple sleeves 31, facilitating maintenance, replacement, cleaning, and manufacturing operations. The flange seats 32 can be fixedly connected to the inner cylinder 311; or, the flange seats 32 can also be fixedly connected to the outer cylinder 312; or, the flange seats 32 can also be fixedly connected to both the inner cylinder 311 and the outer cylinder 312.

[0070] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A grinding cylinder, characterized in that, include: Grinding cylinder (10); A heat dissipation cylinder (30) is sleeved on the outside of the grinding cylinder (10) and forms a heat dissipation channel (101) between it and the grinding cylinder (10). The heat dissipation cylinder (30) is provided with a refrigerant inlet (301) and a refrigerant outlet (302) at both ends along the axial direction (X) of the grinding cylinder (100). The heat dissipation channel (101) is connected to the refrigerant inlet (301) and the refrigerant outlet (302). A turbulence unit (50) is disposed in the heat dissipation channel (101) and is used to turbulent the cooling medium in the heat dissipation channel (101).

2. The grinding cylinder as described in claim 1, characterized in that, The grinding cylinder (100) further includes a heat dissipation plate (60), which is disposed between the grinding cylinder body (10) and the heat dissipation cylinder body (30) and forms the heat dissipation channel (101) with the grinding cylinder body (10) and the heat dissipation cylinder body (30). The heat dissipation plate (60) is disposed independently of the grinding cylinder body (10) and the heat dissipation cylinder body (30); or, the heat dissipation plate (60) is integrally formed with at least one of the grinding cylinder body (10) and the heat dissipation cylinder body (30).

3. The grinding cylinder as described in claim 2, characterized in that, The heat dissipation plate (60) is spirally arranged around the central axis (P) of the grinding cylinder (100). The turbulence unit (50) includes a plurality of baffles (51). The plurality of baffles (51) protrude from at least one of the heat dissipation plate (60), the grinding cylinder (10) and the heat dissipation cylinder (30). The extending direction of the baffles (51) intersects with the spiral direction of the heat dissipation plate (60).

4. The grinding cylinder as described in claim 3, characterized in that, The heat dissipation plate (60) includes a plurality of spiral rings (61), and two adjacent spiral rings (61) include a first spiral ring (611) and a second spiral ring (612). The plurality of baffles (51) include a first baffle (511) and a second baffle (512). The first baffle (511) protrudes from the surface of the first spiral ring (611) facing the second spiral ring (612); the second baffle (512) protrudes from the surface of the second spiral ring (612) facing the first spiral ring (611). The first baffle (511) and the second baffle (512) are arranged alternately along the spiral direction of the heat dissipation plate (60).

5. The grinding cylinder according to claim 3, characterized in that, The heat dissipation plate (60) includes a plurality of spiral rings (61), and the plurality of baffles (51) include a first baffle (511) and a second baffle (512). The first baffle (511) is connected between two adjacent spiral rings (61), and the second baffle (512) is connected to the grinding cylinder (10) and / or the heat dissipation cylinder (30). The first baffle (511) is provided with a first opening (5110), and the second baffle (512) is provided with a second opening (5120). The number of the first openings (5110) is greater than the number of the second openings (5120). The first openings (5110) and the second openings (5120) are staggered along the spiral direction of the heat dissipation plate (60).

6. The grinding cylinder according to claim 5, characterized in that, Along the extending direction of the baffle (51), two first openings (5110) are provided at the two ends of the first spoiler (511) or at the position adjacent to the two ends of the first spoiler (511), and a second opening (5120) is provided at the middle of the second spoiler (512) or at the position adjacent to the middle of the second spoiler (512).

7. The grinding cylinder as described in claim 3, characterized in that, Along the spiral direction of the heat dissipation plate (60), the arrangement density of the baffles (51) near the refrigerant inlet (301) is less than the arrangement density of the baffles (51) away from the refrigerant inlet (301); or, along the spiral direction of the heat dissipation plate (60), the arrangement density of the baffles (51) near the refrigerant inlet (301) is equal to the arrangement density of the baffles (51) away from the refrigerant inlet (301).

8. The grinding cylinder as described in claim 2, characterized in that, The heat dissipation plate (60) and / or the turbulence unit (50) are provided with turbulence holes (501) that communicate with the heat dissipation channel (101).

9. The grinding cylinder as described in claim 8, characterized in that, The turbulence holes (501) are arranged in multiple ways along the radial direction (Y) of the grinding cylinder (100). Along the radial direction (Y) of the grinding cylinder (100), the area of ​​the axial cross section of the turbulence holes (501) near the grinding cylinder body (10) is smaller than the area of ​​the axial cross section of the turbulence holes (501) away from the grinding cylinder body (10); and / or, along the radial direction (Y) of the grinding cylinder (100), the number of turbulence holes (501) near the grinding cylinder body (10) is greater than the number of turbulence holes (501) away from the grinding cylinder body (10).

10. The grinding cylinder as described in claim 8, characterized in that, The turbulence holes (501) are configured in multiple ways, and the multiple turbulence holes (501) are staggered and arranged along the spiral direction of the heat dissipation plate (60).

11. The grinding cylinder as described in claim 8, characterized in that, The axial cross-section of the turbulence hole (501) is semi-circular, circular, elliptical, polygonal, V-shaped, C-shaped, U-shaped, or S-shaped.

12. The grinding cylinder as described in claim 1, characterized in that, The turbulence unit (50) is movably disposed within the heat dissipation channel (101) and configured as an elastic telescopic mesh.

13. The grinding cylinder as described in claim 1, characterized in that, The heat dissipation cylinder (30) includes multiple sleeves (31). The multiple sleeves (31) are arranged along the axial direction (X) of the grinding cylinder (100) and are fixedly connected. Each sleeve (31) and the grinding cylinder (10) form a heat dissipation channel (101) and are provided with a refrigerant inlet (301) and a refrigerant outlet (302).

14. A grinding apparatus, characterized in that, It includes a feed pipe (200) and a grinding cylinder as described in any one of claims 1-13, wherein the feed pipe (200) is connected through the grinding cylinder (100).

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