Turbine grinding device

Abstract

The utility model discloses a turbine grinding device. The turbine grinding device comprises a grinding barrel, a rotating shaft, a turbine grinding disc and a turbine filtering disc. A grinding cavity is formed in the grinding barrel, the grinding barrel is provided with a first end and a second end which are opposite, the first end is provided with a feeding port, and the second end is provided with a discharging port; the rotating shaft is rotationally connected to the second end and extends into the grinding cavity, the turbine grinding disc and the turbine filtering disc are both installed on the rotating shaft, and the turbine filtering disc is located on the side, close to the second end, of the turbine grinding disc; a hollow cavity is formed in the position, corresponding to the turbine filtering disc, in the rotating shaft and communicates with the discharging port, and the turbine filtering disc is used for filtering materials in the grinding cavity and discharging the materials into the hollow cavity. And furthermore, the turbine filtering disc is used for filtering and discharging the materials with the particle sizes reaching the standard, and the materials with the particle sizes not reaching the standard continue to return to the grinding cavity to be ground again until the materials reach the standard are filtered and discharged. Therefore, not only can the particle size uniformity of the ground material be ensured, but also continuous grinding operation can be realized, and the grinding quality and the grinding efficiency can be improved.

Description

Technical Field

[0001] This application belongs to the technical field of grinding, and particularly relates to a turbine grinding device. Background Art

[0002] In the production process of power batteries, a coating process is involved. In order to make the particle size of the slurry meet the process requirements, generally, a grinding device is required to grind and make the slurry before the coating process. Traditional grinding devices include a grinding barrel and a stirring mechanism. The stirring mechanism is arranged inside the grinding barrel. By putting the slurry to be ground into the grinding barrel and using the stirring mechanism to stir and grind the slurry, after grinding for a certain time, the slurry is discharged, and the next slurry grinding operation is carried out again.

[0003] However, when using a traditional grinding device to grind the slurry, there is a situation where a part of the slurry is ground too finely multiple times, while another part of the slurry is not ground, resulting in a large difference in the particle size of the ground slurry and unable to ensure the uniformity of slurry grinding. Summary of the Utility Model

[0004] This application aims to provide a turbine grinding device, which can solve the problem that when using a traditional grinding device to grind the slurry, there is a large difference in the particle size of the ground slurry and the uniformity of slurry grinding cannot be ensured.

[0005] In order to solve the above technical problems, this application is implemented as follows:

[0006] This application provides a turbine grinding device, including: a grinding barrel, a rotating shaft, a turbine grinding disc and a turbine filter disc; a grinding cavity is arranged inside the grinding barrel, the grinding barrel has opposite first and second ends, the first end is provided with a feed port, and the second end is provided with a discharge port; the rotating shaft is rotatably connected to the second end and extends into the grinding cavity, the turbine grinding disc and the turbine filter disc are both installed on the rotating shaft, and the turbine filter disc is located on the side of the turbine grinding disc close to the second end; a hollow cavity is arranged inside the rotating shaft at a position corresponding to the turbine filter disc, the hollow cavity is communicated with the discharge port, and the turbine filter disc is used for filtering the materials in the grinding cavity and discharging them into the hollow cavity.

[0007] Optionally, a spiral structure is arranged on the outer peripheral surface of the part of the rotating shaft extending into the grinding cavity.

[0008] Optionally, in the vertical direction, the discharge port is higher than the feed port.

[0009] Optionally, a number of evenly distributed grinding holes are arranged in the turbine grinding disc, the grinding holes extend from the first end to the second end, and there is a preset included angle between the extending direction of the grinding holes and the axis direction of the rotating shaft.

[0010] Optionally, the preset included angle is: 2° - 5°.

[0011] Optionally, the aperture of the grinding hole is: 1 mm - 2 mm.

[0012] Optionally, a plurality of filter holes are provided in the turbine filter disk, the filter holes communicate the grinding cavity with the hollow cavity, and the aperture of the filter holes is smaller than that of the grinding holes.

[0013] Optionally, the aperture of the filter holes is less than or equal to 50 μm.

[0014] Optionally, a plurality of turbine grinding disks are provided, and the plurality of turbine grinding disks are all arranged on one side of the turbine filter disk close to the first end, and the plurality of turbine grinding disks are arranged at intervals in sequence.

[0015] Optionally, the turbine grinding device further includes a dynamic separation mechanism, the dynamic separation mechanism is installed on the rotating shaft and is located on one side of the turbine filter disk close to the second end, and the dynamic separation mechanism is used for stirring and separating the materials in the grinding cavity.

[0016] Optionally, the dynamic separation mechanism includes: a dynamic separator and a filter screen, the filter screen is coated on the outer peripheral surface of the rotating shaft, the filter screen communicates with the hollow cavity, and the dynamic separator is arranged on the side of the filter screen away from the rotating shaft.

[0017] Optionally, a cooling channel is provided in the barrel wall of the grinding barrel, and the cooling channel is used for circulating a cooling medium to cool the grinding cavity.

[0018] Optionally, the turbine grinding device further includes a driving mechanism, the driving mechanism is arranged at the second end and is connected to the rotating shaft for driving the rotating shaft to rotate; and / or, a sealing structure is provided at the connection between the rotating shaft and the grinding barrel.

[0019] In this application, by arranging a turbine grinding disk and a turbine filter disk in the grinding cavity of the grinding barrel, the rotating shaft can be used to drive the turbine grinding disk and the turbine filter disk to rotate simultaneously, so that the materials in the grinding cavity are ground by the turbine grinding disk, and the materials with qualified particle sizes are filtered and discharged by the turbine filter disk, while the materials with unqualified particle sizes are returned to the grinding cavity to be ground again until they are qualified and then filtered and discharged. In this way, not only the particle size uniformity of the ground materials can be ensured, but also continuous grinding operation can be realized, and the grinding quality and grinding efficiency can be improved.

[0020] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0021] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 is a schematic diagram of a turbo-grinding device according to an embodiment of the present application;

[0023] Figure 2 is a partial schematic diagram of a turbo-grinding device according to an embodiment of the present application;

[0024] Figure 3 is Figure 2 an enlarged view of part D circled in

[0025] Figure 4 is a sectional view / profile view along line A-A in Figure 2 ;

[0026] Figure 5 is a sectional view / profile view along line B-B in Figure 2 ;

[0027] Figure 6 is a sectional view / profile view along line C-C in Figure 2 ;

[0028] Figure 7 is the overall front view of a turbo-grinding device according to an embodiment of the present application;

[0029] Figure 8 is the overall left view of a turbo-grinding device according to an embodiment of the present application;

[0030] Figure 9 is the overall right view of a turbo-grinding device according to an embodiment of the present application.

[0031] Reference numerals:

[0032] 10: grinding barrel; 101: grinding chamber; 102: first end; 103: second end; 104: cooling channel; 11: inner cylinder; 12: outer cylinder; 13: top cover; 131: feed inlet; 14: bottom cover; 141: discharge outlet; 20: rotating shaft; 201: spiral structure; 202: hollow cavity; 30: turbo-grinding disc; 301: grinding hole; 40: turbo-filter disc; 401: filter hole; 50: dynamic separation mechanism; 510: dynamic separator; 520: filter screen; 60: base; 61: drive mechanism; 611: drive motor; 612: coupling; 63: sealing structure; 64: control module; 65: feed pump; 66: hopper; 67: mechanical seal tank. Detailed embodiments

[0033] Embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present application and should not be construed as a limitation of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0034] The terms "first" and "second" in the description and claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means an "or" relationship between the associated objects before and after.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0036] In the description of the present application, it should be noted that, unless otherwise clearly specified and defined, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0037] In the production process of lithium-ion batteries, before gravure coating, grinding and slurrying are required to prepare a slurry that meets the requirements. Traditional grinding equipment mainly adopts the method of stirring and grinding. The slurry to be ground and the grinding medium are introduced into the grinding chamber of the grinding equipment together, and the slurry and the grinding medium in the grinding chamber are stirred by the agitator to achieve the grinding of the slurry. Since the grinding effect of this grinding equipment is limited, in order to meet the requirements of the grinding process, it is usually necessary to increase the grinding time to make the slurry fully ground. However, during the grinding process, some material particles are ground multiple times and become too fine, while other parts of the material are not ground in place, resulting in large differences in material particle size in the ground slurry and poor uniformity. When the ground slurry is used for gravure coating, there are phenomena such as missing coating, which affects the production quality of the battery. In addition, this type of grinding equipment usually adopts a batch grinding method, and the grinding cycle is long, which affects production efficiency.

[0038] To this end, the present application provides a turbine grinding device that can effectively improve the grinding effect of the slurry, thereby meeting the actual production and use requirements. The turbine grinding device provided in the embodiment of the present application is described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0039] like Figure 1 and Figure 2 As shown, according to some embodiments of the present application, the turbine grinding device includes: a grinding barrel 10, a rotating shaft 20, a turbine grinding disc 30 and a turbine filter disc 40; a grinding chamber 101 is provided in the grinding barrel 10, and the grinding barrel 10 has a first end 102 and a second end 103 relative to each other, the first end 102 is provided with a feed port 131, and the second end 103 is provided with a discharge port 141; the rotating shaft 20 is rotatably connected to the second end 103 and extends into the grinding chamber 101, the turbine grinding disc 30 and the turbine filter disc 40 are both installed on the rotating shaft 20, and the turbine filter disc 40 is located on the side of the turbine grinding disc 30 close to the second end 103; a hollow cavity 202 is provided in the rotating shaft 20 at a position corresponding to the turbine filter disc 40, the hollow cavity 202 is connected to the discharge port 141, and the turbine filter disc 40 is used to filter the material in the grinding chamber 101 and discharge it to the hollow cavity 202.

[0040] In the embodiment of the present application, by arranging the turbine grinding disc 30 and the turbine filter disc 40 in the grinding chamber 101 of the grinding barrel 10, the rotating shaft 20 can simultaneously drive the turbine grinding disc 30 and the turbine filter disc 40 to rotate, so that the turbine grinding disc 30 grinds the material in the grinding chamber 101, and the turbine filter disc 40 filters and discharges the material with the particle size that meets the standard, and the material with the particle size that does not meet the standard continues to return to the grinding chamber 101 to be ground again until it meets the standard and is filtered and discharged. In this way, the uniformity of the particle size of the ground material can be ensured, and the continuous grinding operation can be achieved, which can improve the grinding quality and grinding efficiency.

[0041] It should be noted that the turbine grinding device in the present application can be applied to different types of material grinding processes. For example, it can be applicable to dry grinding or wet grinding processes. Further, when applied to wet grinding, there is no limitation on the solution of the slurry. For example, it can be applicable to the grinding of slurries with water solvents, or it can also be applicable to the grinding of slurries with acidic or alkaline solvents. The specific application scenarios can be flexibly set according to the actual situation and are not limited herein.

[0042] In some embodiments, the turbine grinding device of the present application can achieve continuous grinding of materials. The grinding medium prepared in advance can be added to the grinding chamber 101 of the grinding barrel 10 in advance. Control the materials to uniformly enter the grinding chamber 101 from the feed port 131 at a certain flow rate. Drive the turbine grinding disc 30 to rotate at a high speed through the rotating shaft 20. The turbine grinding disc 30 agitates the slurry and the grinding medium in the grinding chamber 101, so as to generate shear force, impact force, crushing force and other acting forces on the material particles, so as to disperse, crush, grind, homogenize, emulsify and other effects on the materials, and achieve sufficient grinding of the materials.

[0043] At the same time, a turbine filter disc 40 is installed on the rotating shaft 20. A hollow cavity 202 communicating with the discharge port 141 is provided in the rotating shaft 20. Through holes are provided in the side wall of the hollow cavity 202, and the through holes communicate with the turbine filter disc 40. Furthermore, when the materials in the grinding chamber 101 flow to the vicinity of the turbine filter disc 40, under the dynamic separation effect, the part of the materials with qualified particle size can be filtered out and discharged to the discharge port 141 through the hollow cavity 202, while the material particles with unqualified particle size continue to return to the grinding chamber 101 for repeated grinding until they meet the standard and are discharged. In this way, the materials with qualified particle size can be discharged in time to avoid the particle size being too small due to repeated grinding. For the unqualified materials, they can be repeatedly ground in the grinding chamber 101 until they meet the particle size requirements, so that the particle size of the ground materials is more uniform and the grinding effect is better.

[0044] Further, by using the turbine grinding device of the present application, continuous production can be achieved and the grinding efficiency is higher. For example, when applied to the battery slurry grinding process, the grinding linear speed can reach 12 - 16 m / s. Compared with the batch grinding method of traditional grinding equipment, the grinding efficiency can be significantly improved.

[0045] In addition, when the turbine grinding device of the present application is used in the wet grinding process, it is less restricted by the slurry viscosity and can be applicable to the grinding of slurries with different viscosities. Exemplarily, the slurry viscosity that can be ground is 500 mPa·s - 5000 mPa·s. Specifically, the slurry viscosities that can be ground are 500 mPa·s, 1000 mPa·s, 2000 mPa·s, 3000 mPa·s, 4000 mPa·s, 5000 mPa·s, etc.

[0046] In some embodiments, both the turbine grinding disc 30 and the turbine filter disc 40 can be made of rigid wear-resistant materials. For example, zirconia material can be selected, which is not only wear-resistant but also can withstand the impact of large shear forces, impact forces, and crushing forces, and has good chemical stability, is not easy to chemically react with the material, and ensures the safety and reliability of the grinding process. Of course, the turbine grinding disc 30 and the turbine filter disc 40 can also be made of other rigid wear-resistant materials, and the present application does not limit this.

[0047] Optionally, as Figure 2 shown, a spiral structure 201 is provided on the outer peripheral surface of the part of the rotating shaft 20 extending into the grinding chamber 101.

[0048] In the embodiment of the present application, by providing the spiral structure 201 on the outer peripheral surface of the part of the rotating shaft 20 extending into the grinding chamber 101, when the rotating shaft 20 rotates, the spiral structure 201 can drive the material to transfer from the feed port 131 to the discharge port 141, so as to promote the flow of the material in the grinding chamber 101, avoid local accumulation of the material after entering the grinding chamber 101 from the feed port 131, and contribute to the dispersed grinding of the material.

[0049] It should be noted that the spiral direction of the spiral structure 201 provided on the circumferential outer side of the rotating shaft 20 is adapted to the rotation direction of the rotating shaft, and the specific structural setting can be determined according to the actual situation and is not limited herein.

[0050] In some embodiments, the turbine grinding device further includes a driving mechanism 61, the driving mechanism 61 is arranged at the second end 103 of the grinding barrel 10, the driving mechanism 61 is connected to the rotating shaft 20, and thus the rotating shaft 20 can be driven to rotate through the driving mechanism 61.

[0051] It should be noted that the driving mechanism 61 in the present application can be selected from a motor driving mechanism, a hydraulic driving mechanism, a pneumatic driving mechanism, etc., and can be flexibly set according to the actual situation and is not limited herein.

[0052] In a specific embodiment, the driving mechanism 61 can include a driving motor 611 and a coupling 612. The rotating shaft 20 includes a stirring part and a connecting part. The connecting part is rotatably connected to the second end 103 of the grinding barrel 10. One end of the connecting part is exposed outside the grinding barrel 10, and the other end extends into the grinding chamber 101 and is connected to the stirring part. Both the turbine grinding disc 30 and the turbine filter disc 40 are connected to the stirring part. The coupling 612 is connected to the exposed end of the connecting part, and the driving motor 611 is connected to the coupling 612. Thus, the rotating shaft 20 can be driven to rotate by driving the coupling 612 through the driving motor 611.

[0053] In some embodiments, as Figure 1As shown, a sealing structure 63 is provided at the connection between the rotating shaft 20 and the grinding barrel 10. Preferably, the sealing structure 63 can adopt a dynamic sealing structure, such as a mechanical seal. Furthermore, through the sealing structure 63, the space between the rotating shaft 20 and the grinding barrel 10 can be sealed, so that both the rotation requirement of the rotating shaft 20 relative to the grinding barrel 10 can be met and the leakage of materials from the connection between the rotating shaft 20 and the grinding barrel 10 can be avoided.

[0054] In some embodiments, such as Figure 7 As shown, a mechanical seal tank 67 can also be provided. The mechanical seal tank 67 contains a cooling medium and a lubricating medium, and the mechanical seal tank 67 is connected to the sealing structure 63. So that during the rotation of the rotating shaft 20, the mechanical seal tank 67 can supply the cooling medium and the lubricating medium to the sealing structure 63, thereby avoiding the sealing failure caused by the over-high temperature or excessive wear of the dynamic sealing structure 63 and improving the sealing effect.

[0055] Optionally, as Figure 1 and Figure 2 shown, in the vertical direction, the discharge port 141 is higher than the feed port 131. That is, in the vertical direction, the height from the discharge port 141 to the central axis of the grinding barrel 10 is greater than the height from the feed port 131 to the central axis of the grinding barrel 10. By setting a height difference between the discharge port 141 and the feed port 131, the materials entering from the feed port 131 are not likely to flow out from the discharge port 141, so as to ensure that the materials can be fully dispersed and ground in the grinding chamber 101, thereby improving the grinding quality.

[0056] It should be noted that the specific positions of the discharge port 141 and the feed port 131 on the grinding barrel 10 can be flexibly set according to actual needs and are not limited herein.

[0057] Optionally, as Figure 2 and Figure 4 shown, a plurality of uniformly distributed grinding holes 301 are provided in the turbine grinding disc 30. The grinding holes 301 extend from the first end 102 to the second end 103, and there is a preset angle between the extending direction of the grinding holes 301 and the axis direction of the rotating shaft 20.

[0058] In the embodiments of the present application, by providing a plurality of uniformly distributed grinding holes 301 in the turbine grinding disc 30, the materials can flow through the grinding holes 301. Furthermore, by setting a certain angle between the extending direction of the grinding holes 301 and the axis direction of the rotating shaft 20, that is, the extending direction of the grinding holes 301 is not parallel to the axis direction of the rotating shaft 20. In this way, when the turbine grinding disc 30 rotates at a high speed, a shearing action will be formed on the materials flowing through the grinding holes 301, so as to improve the grinding effect on the material particles.

[0059] Among them, a plurality of grinding holes 301 in the turbine grinding disc 30 can be set, and they are arranged in a radial array centered on the axis of the turbine grinding disc 30, so as to improve the distribution uniformity of the overall structure of the turbine grinding disc 30.

[0060] Optionally, the preset angle is: 2° - 5°. Specifically, the preset angle can be set to any angle such as 2°, 2.5°, 3°, 3.5°, 4°, 4.5°, 5° or the range between any two angles.

[0061] In the embodiment of the present application, by setting a reasonable value range of the preset angle, when the material flows through the grinding hole 301, through the rotation of the turbine grinding disc 30, a shearing and grinding effect can be exerted on larger material particles, thereby improving the grinding effect on the material. Among them, if the preset angle is too small, the shearing force received by the material when flowing through the grinding hole 301 is small, and an effective grinding effect on the material particles cannot be achieved; if the preset angle is too large, it is not convenient for the material particles to pass through, and an effective grinding effect on the material cannot be achieved either.

[0062] Optionally, the aperture of the grinding hole 301 is: 1 mm - 2 mm. Specifically, the aperture of the grinding hole 301 can be set to any value such as 1 mm, 1.2 mm, 1.5 mm, 1.7 mm, 2 mm or the range between any two values.

[0063] In the embodiment of the present application, by setting the aperture range of the grinding hole 301, during the grinding process, material particles of a certain particle size are allowed to enter the grinding hole 301, and through the rotation of the turbine grinding disc 30, the material particles are sheared and ground. If the aperture of the grinding hole 301 is too large, the material will directly pass through the grinding hole 301 and cannot play an effective grinding role on the material. If the aperture of the grinding hole 301 is too small, larger material particles cannot enter the grinding hole 301, and the shearing and grinding effect on the material particles cannot be achieved either.

[0064] It can be understood that the aperture range of the grinding hole 301 is related to the particle size of the material to be ground and the particle size of the grinding medium. Generally, the aperture of the grinding hole 301 is greater than or equal to the particle size of the material and less than the particle size of the grinding medium, so that the material can enter the grinding hole 301 while the grinding medium cannot enter the grinding hole. It should be noted that the specific type of the grinding medium can be flexibly selected according to the grinding process and is not limited here.

[0065] Optionally, as Figure 3 and Figure 5 shown, a plurality of filter holes 401 are provided in the turbine filter disc 40, the filter holes 401 communicate the grinding cavity 101 with the hollow cavity 202, and the aperture of the filter holes 401 is smaller than the aperture of the grinding holes 301.

[0066] In the embodiment of the present application, a number of filtering holes 401 are provided in the turbine filter disc 40 to filter the ground materials in the grinding chamber 101. At the same time, the aperture of the filtering holes 401 in the turbine filter disc 40 is smaller than the aperture of the grinding holes 301 in the turbine grinding disc 30. In this way, the part of the materials in the grinding chamber 101 that meets the particle size requirements can be filtered and discharged, while the unqualified part returns to the grinding chamber 101 and is continuously ground by the grinding turbine grinding disc 30 until it meets the standard and is discharged again.

[0067] Optionally, the aperture of the filtering holes 401 is less than or equal to 50 μm. Specifically, the aperture of the filtering holes 401 can be set to any value such as 5 μm, 10 μm, 15 μm, 20 μm, 25 μm, 30 μm, 35 μm, 40 μm, 45 μm, 50 μm or the range between any two values.

[0068] In the embodiment of the present application, by setting the aperture range of the filtering holes 401, the particle size of the materials filtered by the turbine filter disc 40 can meet the usage requirements. It should be noted that the aperture of the filtering holes 401 is related to the actual grinding process requirements and can be flexibly set according to the actual situation.

[0069] Optionally, as Figure 2 shown, a plurality of turbine grinding discs 30 are provided, and the plurality of turbine grinding discs 30 are all arranged on one side of the turbine filter disc 40 close to the first end 102, and the plurality of turbine grinding discs 30 are arranged at intervals in sequence.

[0070] In the embodiment of the present application, by providing a plurality of turbine grinding discs 30, each of which is provided with grinding holes 301, during the flow of the materials in the grinding chamber 101, each turbine grinding disc 30 can be used to grind the materials. In this way, the grinding effect and grinding efficiency of the materials can be improved.

[0071] Optionally, as Figure 2 , Figure 3 and Figure 6 shown, the turbine grinding device further includes a dynamic separation mechanism 50. The dynamic separation mechanism 50 is installed on the rotating shaft 20 and is located on one side of the turbine filter disc 40 close to the second end 103. The dynamic separation mechanism 50 is used to stir and separate the materials in the grinding chamber 101.

[0072] It can be understood that when the materials in the grinding chamber 101 flow to the corresponding position of the turbine filter disc 40 after grinding, the materials with qualified particle sizes will be filtered and discharged, while the unqualified materials will remain in the grinding chamber 101. This part of the materials is likely to accumulate in the space on the side of the turbine filter disc 40 close to the second end 103. For this reason, in this application, a dynamic separation mechanism 50 is provided. The dynamic separation mechanism 50 can rotate together with the rotating shaft 20 to stir the filtered materials, avoid the accumulation of local materials, and at the same time, the dynamic separation mechanism 50 also has a dynamic separation effect and can further separate and filter the materials.

[0073] Optionally, as Figure 3 shown, the dynamic separation mechanism 50 includes: a dynamic separator 510 and a filter screen 520. The filter screen 520 is coated on the outer peripheral surface of the rotating shaft 20. The filter screen 520 is communicated with the hollow cavity 202, and the dynamic separator 510 is arranged on the side of the filter screen 520 away from the rotating shaft 20.

[0074] In the embodiment of this application, through holes communicated with the hollow cavity 202 are arranged at the corresponding positions of the rotating shaft 20 and the dynamic separation mechanism 50. Then, one or more layers of filter screens 520 are coated on the rotating shaft 20, so that the filter screens 520 cover the through holes, and the dynamic separator 510 is arranged outside the filter screens 520.

[0075] Furthermore, the rotating shaft 20 drives the filter screen 520 and the dynamic separator 510 to rotate simultaneously. The dynamic separator 510 can stir. At the same time, under the action of rotational centrifugal force, the materials with smaller particles will enter the hollow cavity 202 through the dynamic separator 510 and the filter screen 520 to be discharged, while the materials with larger particle sizes will return to the grinding chamber 101 under the stirring action of the dynamic separator 510 for continuous grinding. In this way, not only can the stirring effect on the materials be realized to avoid the accumulation of materials, but also the filtering effect on the materials can be achieved.

[0076] It should be noted that the structure of the dynamic separator 510 in this application can refer to the dynamic separator in the related art, and this application will not elaborate here.

[0077] Optionally, as Figure 2 shown, a cooling channel 104 is provided in the barrel wall of the grinding barrel 10. The cooling channel 104 is used to circulate a cooling medium to cool the grinding chamber 101.

[0078] It can be understood that during the grinding process of the materials in the grinding chamber 101, heat will be generated. If the temperature is not lowered in time, it is easy to cause the temperature in the grinding chamber 101 to be too high and the materials to fail. For this reason, in this application, a cooling channel 104 is provided in the barrel wall of the grinding barrel 10 so as to introduce a cooling medium into the cooling channel 104 to cool the grinding chamber 101 and the materials.

[0079] In some embodiments, such as Figure 2 shown, the grinding barrel 10 may include an inner barrel 11, an outer barrel 12, a top cover 13, and a bottom cover 14. The top cover 13 and the bottom cover 14 are respectively disposed at two ends of the inner barrel 11. The inner barrel 11, the top cover 13, and the bottom cover 14 together form a grinding chamber 101, providing an accommodation space for grinding media and materials. The outer barrel 12 is disposed on the circumferential outer side of the inner barrel 11, and both ends of the outer barrel 12 are respectively connected to the top cover 13 and the bottom cover 14. A gap is provided between the inner barrel 11 and the outer barrel 12, and this gap forms a cooling channel 104. By introducing a cooling medium into the gap between the inner barrel 11 and the outer barrel 12, the temperature reduction effect on the grinding chamber 101 can be achieved.

[0080] It should be noted that the gap structure between the inner barrel 11 and the outer barrel 12 can be set to form the cooling channel 104, or cooling pipes can be provided between the inner barrel 11 and the outer barrel 12 to form the cooling channel 104, or other structures of the cooling channel 104 can be adopted, which can be flexibly set according to actual situations and are not limited herein.

[0081] Furthermore, an inlet communicating with the cooling channel 104 is provided at the bottom of the outer barrel 12, and an outlet communicating with the cooling channel 104 is provided at the top of the outer barrel 12. The inlet and the outlet are respectively connected to an external cooling system. Through the cooling system, a circulating cooling medium can be continuously introduced into the cooling channel 104 to achieve temperature control in the grinding chamber 101. Among them, the cooling medium may include cooling water, cooling oil, cooling gas, etc. The specific type of the cooling medium can be flexibly set according to actual needs and is not limited herein.

[0082] In some embodiments, such as Figures 7 to 9 shown, the turbo-grinding device further includes a base 60, a hopper 66, and a feed pump 65. The grinding barrel 10 is installed on the base 60. A hopper 66 is disposed below the grinding barrel 10. When performing operations such as maintenance on the grinding barrel 10, it is usually necessary to discharge the residual materials in the grinding barrel 10. By providing the hopper 66, the residual materials discharged from the grinding barrel 10 can be collected so as to introduce the residual materials into a recycling container. The feed pump 65 is connected to the feed port 131 of the grinding barrel 10 through a pipeline, and the input end of the feed pump 65 is connected to a feeding system. The feed pump 65 can be used to continuously supply the materials to be ground into the grinding chamber 101. Exemplarily, a diaphragm pump can be selected as the feed pump.

[0083] In some embodiments, such as Figure 7As shown, the turbo grinding device further includes a control module 64, which is used to control the movement of components such as the drive mechanism 61 and the feed pump 65 to complete the grinding process of the material. Specifically, the control module 64 may include components such as a control switch, a PLC, an inverter, a power supply, a human-machine interface, and a relay. Among them, power can be supplied to each component through the power supply, the operating parameters of the grinding device can be set through the human-machine interface, each component can be controlled to execute actions according to a logic program through the PLC, the speed of the drive motor 611 can be controlled through the inverter, and the circuit can be protected through the relay.

[0084] Of course, the control module 64 may also include other components, and the specific structural settings can be flexibly selected according to actual needs and are not limited herein.

[0085] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0086] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A turbine grinding device, characterized in that: include: A grinding barrel (10), a rotating shaft (20), a turbine grinding disc (30) and a turbine filter disc (40); The grinding barrel (10) is provided with a grinding chamber (101), and the grinding barrel (10) has a first end (102) and a second end (103) opposite to each other, the first end (102) is provided with a feed port (131), and the second end (103) is provided with a discharge port (141); The rotating shaft (20) is rotatably connected to the second end (103) and extends into the grinding chamber (101); the turbine grinding disc (30) and the turbine filter disc (40) are both mounted on the rotating shaft (20); the turbine filter disc (40) is located on a side of the turbine grinding disc (30) close to the second end (103); a hollow cavity (202) is provided in the rotating shaft (20) at a position corresponding to the turbine filter disc (40); the hollow cavity (202) is connected to the discharge port (141); the turbine filter disc (40) is used to filter the material in the grinding chamber (101) and discharge it into the hollow cavity (202).

2. The turbine grinding device according to claim 1, characterized in that: The outer peripheral surface of the portion of the rotating shaft (20) extending into the grinding chamber (101) is provided with a spiral structure (201).

3. The turbine grinding device according to claim 1, characterized in that: In the vertical direction, the discharge port (141) is higher than the feed port (131).

4. The turbine grinding device according to claim 1, characterized in that: The turbine grinding disc (30) is provided with a plurality of evenly distributed grinding holes (301), the grinding holes (301) extending from the first end (102) toward the second end (103), and a preset angle exists between the extending direction of the grinding holes (301) and the axial direction of the rotating shaft (20).

5. The turbine grinding device according to claim 4, characterized in that: The preset angle is: 2°-5°.

6. The turbine grinding device according to claim 4, characterized in that: The diameter of the grinding hole (301) is 1 mm-2 mm.

7. The turbine grinding device according to claim 4, characterized in that: The turbine filter disc (40) is provided with a plurality of filter holes (401), the filter holes (401) communicating with the grinding chamber (101) and the hollow chamber (202), and the aperture of the filter holes (401) is smaller than the aperture of the grinding hole (301).

8. The turbine grinding device according to claim 7, characterized in that: The pore size of the filter hole (401) is less than or equal to 50 μm.

9. The turbine grinding device according to any one of claims 1 to 8, characterized in that: The turbine grinding disc (30) is provided in a plurality, and the plurality of turbine grinding discs (30) are all provided on a side of the turbine filter disc (40) close to the first end (102), and the plurality of turbine grinding discs (30) are arranged in sequence and spaced apart.

10. The turbine grinding device according to any one of claims 1 to 8, characterized in that: The turbine grinding device also includes a dynamic separation mechanism (50), which is installed on the rotating shaft (20) and is located on a side of the turbine filter disc (40) close to the second end (103). The dynamic separation mechanism (50) is used to stir and separate the material in the grinding chamber (101).

11. The turbine grinding device according to claim 10, characterized in that: The dynamic separation mechanism (50) comprises: a dynamic separator (510) and a filter (520); the filter (520) is coated on the outer peripheral surface of the rotating shaft (20); the filter (520) is communicated with the hollow cavity (202); and the dynamic separator (510) is arranged on a side of the filter (520) facing away from the rotating shaft (20).

12. The turbine grinding device according to claim 1, characterized in that: A cooling channel (104) is provided in the barrel wall of the grinding barrel (10), and the cooling channel (104) is used to circulate a cooling medium to cool the grinding chamber (101).

13. The turbine grinding device according to claim 1, characterized in that: The turbine grinding device further comprises a driving mechanism (61), wherein the driving mechanism (61) is disposed at the second end (103) and connected to the rotating shaft (20), and is used for driving the rotating shaft (20) to rotate; And / or, a sealing structure (63) is provided at the connection between the rotating shaft (20) and the grinding barrel (10).

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