Dispersing device

Abstract

The invention discloses dispersing equipment. The dispersing equipment comprises a dispersing part and a driving part, the dispersing component comprises a rotating shaft, a dispersing machine and a centrifugal pump. The dispersion machine comprises a dispersion main body and a screen cylinder. And the dispersing main body is provided with a dispersing cavity for accommodating the screen barrel. The centrifugal pump comprises a pump shell and an impeller. The rotating shaft is sequentially and fixedly connected to the screen barrel and the impeller. The pump shell is provided with a pump cavity, a feeding port and a discharging port. The impeller is arranged in the pump cavity. The discharge hole is formed in the end part, far away from the dispersion machine, of the pump shell. The pump shell is provided with a side flow channel. And a discharge port is formed in the discharge end of the side runner. And the feeding end of the side runner and the feeding hole are oppositely arranged in the axial direction of the rotating shaft. And the feed port, the pump cavity, the side runner, the discharge port and the dispersion cavity are sequentially communicated and form a slurry runner. And the driving part is fixedly connected with the rotating shaft and is used for driving the rotating shaft to drive the screen barrel and the impeller to rotate, so that the control difficulty of the material retention time and the shearing strength is reduced, the consistency of material characteristics is improved, and the material dispersion quality is improved.

Description

Technical Field

[0001] The present application relates to the technical field of material dispersion, and in particular to a dispersion device. Background Art

[0002] The existing centrifugal pump and thin film disperser are set independently of each other, and the flow direction of the slurry is changed through an external connecting pipe, which makes it more difficult to control the material residence time and shear strength, resulting in inconsistent material properties and reduced material dispersion quality. Summary of the Invention

[0003] In view of this, one object of the present invention is to provide a dispersion device to solve the technical problem that the centrifugal pump and the thin film disperser of the existing dispersion equipment realize the flow direction conversion of the slurry through an external connecting pipe, which makes the control of the material residence time and shear strength more difficult, causes inconsistent material properties, and reduces the dispersion quality of the material.

[0004] An embodiment of the present application provides a dispersion device comprising a dispersion component and a drive component. The dispersion component comprises a rotating shaft, a disperser, and a centrifugal pump. The disperser comprises a dispersion body and a screen cylinder. The dispersion body is provided with a dispersion chamber. The screen cylinder is disposed within the dispersion chamber. The centrifugal pump comprises a pump casing and an impeller. The rotating shaft is fixedly connected to the screen cylinder and the impeller in sequence. The pump casing is provided with a pump chamber, a feed port, and a discharge port. The impeller is disposed within the pump chamber. The discharge port is disposed at the end of the pump casing away from the disperser. The inner wall of the pump casing is provided with a side channel connected to the pump chamber on the side adjacent to the disperser. The side channel comprises a feed end and a discharge end disposed opposite each other. The discharge end is provided with the discharge port. The feed end and the feed port are disposed opposite each other in the axial direction of the rotating shaft. The feed port, the pump chamber, the side channel, the discharge port, and the dispersion chamber are sequentially connected to form a slurry flow channel. The driving member is fixedly connected to the rotating shaft and is used to drive the rotating shaft to drive the screen drum and the impeller to rotate.

[0005] In some embodiments, the discharge port is provided in plurality, and the plurality of discharge ports are spaced apart along the extension direction of the side flow channel.

[0006] In some embodiments, the flow areas of the plurality of discharge ports remain unchanged from the feed end to the discharge end; or, the flow areas of the plurality of discharge ports gradually increase from the feed end to the discharge end.

[0007] In some embodiments, the side flow channel has an arc-shaped appearance, and the line connecting the two ends of the side flow channel in the direction from the feed end to the discharge end is a first arc segment; the central angle corresponding to the first arc segment is a first central angle; in the direction from the feed end to the discharge end, the line connecting the centers of the two discharge ports located at both ends is a second arc segment, and the central angle corresponding to the second arc segment is a second central angle, wherein the first central angle is greater than the second central angle, and the second central angle is less than or equal to 100°.

[0008] In some embodiments, in the direction from the feed end to the discharge end, the line connecting the centers of two adjacent discharge ports is a third arc segment, the central angle corresponding to the third arc segment is a third central angle, and the third central angle is 20°-60°.

[0009] In some embodiments, the number of the discharge ports is set to 2-5.

[0010] In some embodiments, in the direction from the feed end to the discharge end, the discharge port closest to the discharge end is arranged at the top of the pump housing.

[0011] In some embodiments, the plurality of discharge ports are all arranged on the same arc line which is cocentric with the rotating shaft.

[0012] In some embodiments, the slurry flow direction in the discharge port is parallel to the central axis of the rotating shaft.

[0013] In some embodiments, the central axis of the rotating shaft is parallel to the horizontal plane.

[0014] In some embodiments, the impeller includes an impeller disk and a plurality of blades. The impeller disk is sleeved on the outer side of the rotating shaft, and the plurality of blades are spaced apart and arranged on the outer side wall of the impeller disk.

[0015] In some embodiments, the impeller is configured as a non-metallic structure, and the impeller further includes a plurality of connecting pieces, each of which is connected to two adjacent blades to form a closed flow channel.

[0016] In some embodiments, the dispersion device further includes a mounting component, the mounting component including a mounting base and a roller, the dispersion component and the driving component are mounted on the top of the mounting base, and the roller is mounted on the bottom of the mounting base.

[0017] In some embodiments, the mounting component further includes a push rod, and the push rod is fixed on the mounting base.

[0018] The dispersion equipment provided in the embodiment of the present application, on the one hand, is based on connecting the centrifugal pump and the screen drum in series through the same rotating shaft, thereby reducing the difficulty of controlling the residence time and shear strength of the material, improving the consistency of the material properties, and improving the dispersion quality of the material; on the other hand, the centrifugal pump and the screen drum can both disperse and shear the material, thereby enhancing the dispersion effect and dispersion efficiency of the dispersion equipment on the material; on the other hand, based on the provision of a side flow channel in the centrifugal pump, the centrifugal pump has good self-priming ability, thereby enabling the centrifugal pump to be started when it is not completely filled with liquid, and the material circulates multiple times between the impeller and the impeller, which can better handle the gas-containing liquid and reduce the risk of cavitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 It is a structural diagram of the dispersion device provided in an embodiment of the present application.

[0021] Figure 2 yes Figure 1 Cross-sectional view of the local structure of the dispersion equipment.

[0022] Figure 3 yes Figure 2 Exploded view of a centrifugal pump in a dispersion device.

[0023] Figure 4 yes Figure 3 Schematic diagram of the structure of the pump casing of the centrifugal pump from the first perspective.

[0024] Figure 5 yes Figure 3 Schematic diagram of the structure of the pump casing of the centrifugal pump from a second perspective.

[0025] Explanation of the main reference numerals: dispersion device 100; dispersion component 1; driving component 2; control component 3; rotating shaft 10; disperser 20; dispersion body 21; dispersion chamber 2101; screen cylinder 22; temperature control component 23; medium inlet 231; medium outlet 232; centrifugal pump 30; pump housing 31; pump chamber 3101; feed port 3102; discharge port 3103; side channel 3105; feed end 3106; discharge end 3107; guide surface 3108; pump housing body 311; bottom plate 3111; side plate 3112; pump casing end cover-312; impeller-32; impeller disk-321; anti-rotation hole-3211; positioning groove-3212; blade-322; connecting piece-323; fixing piece-33; mounting component-4; mounting base-41; roller-42; locking piece-43; push rod-44; shield-45; first arc segment-L1; second arc segment-L2; third arc segment-L3; first central angle-α; second central angle-β; third central angle-γ; central axis-P; axial direction-X; radial direction-Y; circumferential direction-Z; extension direction-F.

[0026] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] It should be understood that the terms used in the specification, claims, and accompanying figures of this application are intended only to describe specific embodiments and are not intended to limit this application. The terms "first," "second," and so on in the specification, claims, and accompanying figures of this application are used to distinguish between different objects and are not intended to describe a specific order. Unless the context clearly indicates otherwise, the singular forms "a," "an," and "the" are intended to include the plural forms. The terms "including" and "comprising" and any variations thereof are intended to cover non-exclusive inclusions. Furthermore, this application may be implemented in a variety of different forms and is not limited to the embodiments described herein. The following specific examples are provided to facilitate a clearer and more thorough understanding of the disclosure of this application. Words such as "up," "down," "left," and "right" refer only to the positions of the structures shown in the corresponding accompanying drawings. In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," "connected," and "disposed on" are to be broadly construed. For example, they may refer to fixed, removable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal connections between two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0029] The term "parallel" means that when two straight lines on a plane, two planes in space, and a straight line and a plane in space do not have any common points, they are said to be parallel. The term "perpendicular" means that when a line on a plane intersects with another line and forms a right angle, the two lines are perpendicular to each other. In the embodiments of the present application, descriptions such as parallel and perpendicular may include situations where the two lines are approximately parallel and approximately perpendicular due to processing errors, measurement errors, etc. For example, the two lines described herein as being parallel may include situations where the two lines are completely parallel, and may also include situations where the two lines are approximately parallel. The two lines described herein as being perpendicular may include situations where the two lines are completely perpendicular, and may also include situations where the two lines are approximately perpendicular.

[0030] The following description is for the purpose of illustrating 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 also refer to Figures 1 to 4 , Figure 1 1 is a schematic structural diagram of a dispersion device 100 provided in an embodiment of the present application; Figure 2 yes Figure 1 A cross-sectional view of a partial structure of the dispersion device 100; Figure 3 yes Figure 2 An exploded view of the centrifugal pump 30 of the dispersion device 100; Figure 4 yes Figure 3A schematic structural diagram of the pump housing 31 of the centrifugal pump 30 from a first perspective. The dispersion device 100 includes a dispersion component 1 and a drive component 2. The dispersion component 1 includes a rotating shaft 10, a disperser 20, and a centrifugal pump 30. The disperser 20 includes a dispersion body 21 and a screen drum 22. The dispersion body 21 is provided with a dispersion chamber 2101. The screen drum 22 is disposed within the dispersion chamber 2101. The centrifugal pump 30 includes a pump housing 31 and an impeller 32. The rotating shaft 10 is fixedly connected to the screen drum 22 and the impeller 32 in sequence. The pump housing 31 is provided with a pump chamber 3101, an inlet 3102, and a discharge port 3103. The impeller 32 is disposed within the pump chamber 3101. The discharge port 3103 is located at the end of the pump housing 31 away from the disperser 20. A side channel 3105 communicating with the pump chamber 3101 is provided on the inner wall of the pump housing 31 on the side near the disperser 20. The lateral flow channel 3105 includes an opposing feed end 3106 and a discharge end 3107. The discharge end 3107 is provided with a discharge port 3103. The feed end 3106 and the feed port 3102 are positioned opposite each other in the axial direction X of the rotating shaft 10. The feed port 3102, the pump chamber 3101, the lateral flow channel 3105, the discharge port 3103, and the dispersion chamber 2101 are sequentially connected to form a slurry flow channel. The drive member 2 is fixedly connected to the rotating shaft 10 and is used to drive the rotating shaft 10 to rotate the screen drum 22 and the impeller 32.

[0032] The dispersion device 100 provided in the embodiment of the present application, on the one hand, is based on connecting the centrifugal pump 30 and the screen drum 22 in series through the same rotating shaft 10, thereby reducing the difficulty of controlling the material residence time and shear strength, improving the consistency of material properties, and improving the material dispersion quality; on the other hand, the centrifugal pump 30 and the screen drum 22 can both disperse and shear the material, thereby enhancing the dispersion effect and dispersion efficiency of the dispersion device 100 on the material; on the other hand, based on the provision of a side channel 3105 in the centrifugal pump 30, the centrifugal pump 30 has good self-priming ability, thereby enabling the centrifugal pump 30 to start when it is not completely filled with liquid, and the material circulates multiple times between the side channel 3105 and the impeller 32, which can better handle gas-containing liquids and reduce the risk of cavitation.

[0033] For the accuracy of description, please refer to the direction in this article. Figure 2For reference. The rotating shaft 10 has a central axis P. The term "axial direction X" refers to the direction parallel to the central axis P of the rotating shaft 10, wherein the X axis is the left-right direction (wherein the positive direction of the X axis is right). The term "radial direction Y" refers to the direction perpendicular to the central axis P of the rotating shaft 10, that is, the radial direction along the cross section of the rotating shaft 10, wherein the Y axis is the up-down direction (wherein the positive direction of the Y axis is up). The term "circumferential direction Z" refers to the circumferential direction of the rotating shaft 10, that is, the direction around the central axis P of the rotating shaft 10. The axial direction X, radial direction Y and circumferential direction Z together constitute the three orthogonal directions of the rotating shaft 10. For the convenience of description, the up and down, left and right, front and back directions in this application are relative positions and do not constitute a limitation to implementation. The axial direction X, radial direction Y and circumferential direction Z of the rotating shaft 10 can be customized according to the specific structure of the product and the perspective of the drawings, and this application does not make specific limitations.

[0034] The dispersion device 100 is used to disperse materials. The materials may be battery materials. Battery materials include a variety of materials, such as, but not limited to, positive electrode materials, negative electrode materials, conductive agents, and the like. In this embodiment, the materials are illustrated as battery materials. However, it is understood that the materials may also be other materials, such as food materials, pharmaceutical materials, fertilizer materials, construction materials, and the type of materials is not limited here.

[0035] It should be noted that Figure 1 The purpose is only to schematically describe the arrangement between the dispersion component 1 and the driving component 2, and it does not specifically limit the connection position, connection relationship and specific structure of each component. The figure is only a structure of the dispersion device 100 illustrated in the embodiment of the present application, and does not constitute a specific limitation of the dispersion device 100. In other embodiments of the present application, the dispersion device 100 may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, the dispersion device 100 may also include but is not limited to a temperature sensor, a defoaming structure, etc. Specifically, the defoaming structure is arranged in the dispersion chamber 2101 to eliminate bubbles in the slurry in the dispersion chamber 2101. The temperature sensor is used to detect the temperature of the material in the dispersion chamber 2101.

[0036] The dispersion body 21 is used to store materials. The dispersion body 21 is configured as a cylindrical structure, thereby achieving uniform processing of materials within the dispersion device 100. The dispersion body 21 can be configured as a cylindrical structure. In some embodiments, the dispersion body 21 can also be configured as a prismatic structure, which is not specifically limited in the present embodiment.

[0037] The mesh drum 22 is used to shear and disperse the material within the dispersion chamber 2101. A gap is formed between the mesh drum 22 and the inner wall of the dispersion chamber 2101, allowing the slurry to form a thick film within the gap between the mesh drum 22 and the dispersion chamber 2101. This allows the material to be sheared more evenly, avoiding local overheating or dispersion dead spots, and ensuring monodispersed particles, thereby avoiding local impedance unevenness within the battery. The film flow also reduces air entrapment, lowers the porosity of the electrode coating, and improves the battery cycle life.

[0038] In some embodiments, the disperser 20 further includes a temperature control element 23. The temperature control element 23 is mounted on the outer wall of the dispersion body 21 and is used to adjust the temperature of the material within the dispersion chamber 2101. Specifically, a temperature control chamber is formed between the temperature control element 23 and the dispersion body 21. The temperature control element 23 is provided with a medium inlet 231 and a medium outlet 232, which are connected to the temperature control chamber. A temperature control medium is provided in the temperature control chamber, and the temperature control medium may be, for example, but not limited to, at least one of water, air, and oil. Thus, the temperature control element 23 can be configured as a cooling structure or a heating structure.

[0039] In the present embodiment, the driving member 2, the disperser 20 and the centrifugal pump 30 are sequentially arranged in the axial direction X of the rotating shaft 10. Thus, on the one hand, the driving member 2 can accurately control the energy input to the disperser 20 and the centrifugal pump 30 through the rotating shaft 10, simplifying the transmission path of the driving member 2, improving the transmission ratio, and reducing the mechanical stress applied by the driving member 2 to the disperser 20 of the disperser 21, thereby improving the uniformity of the gap formed between the screen cylinder 22 and the inner wall of the dispersion chamber 2101; on the other hand, the centrifugal pump 30 can improve the smoothness of the slurry flow to the disperser 20, and the disperser 20 can achieve microscopic homogeneity of the material. Of course, in some embodiments, the driving member 2 can also be arranged on the outer wall of the disperser 20 in the radial direction Y of the rotating shaft 10, and be connected to the rotating shaft 10 through a transmission component, which is not specifically limited in the present embodiment.

[0040] The pump casing 31 includes a pump casing body 311 and a pump casing end cover 312. The pump casing body 311 is sealed and connected to the pump casing end cover 312, and together they form a pump chamber 3101. The pump casing end cover 312 is connected to the end of the pump casing body 311 away from the disperser 20. The pump casing end cover 312 is provided with a feed port 3102. Specifically, the pump casing end cover 312 is provided with a feed port 3102 at the top in the height direction of the dispersion device 100, thereby reducing the slurry from being deposited at the bottom of the pump casing 31 and reducing the resistance of the feed pipe connected to the feed port 3102. The bottom wall of the pump casing body 311 and the pump casing end cover 312, which are arranged opposite to each other, is provided with a discharge port 3103.

[0041] In this embodiment, the pump casing body 311 includes a bottom plate 3111 and a side plate 3112. The end surface of the bottom plate 3111 facing the pump casing end cover 312 is provided with a side channel 3105, and is provided with a discharge port 3103 connected to the side channel 3105. In this embodiment, the bottom plate 3111 and the side plate 3112 are integrally formed, thereby improving the reliability and sealing of the connection between the bottom plate 3111 and the side plate 3112, and enhancing the structural strength of the pump casing body 311, thereby extending the service life of the pump casing 31. Of course, in some embodiments, the bottom plate 3111 and the side plate 3112 can be provided independently of each other and fixedly connected in a sealed manner, which is not specifically limited in the embodiment of the present application.

[0042] For example, in this embodiment, a plurality of discharge ports 3103 are provided. The plurality of discharge ports 3103 are spaced apart along the extension direction F of the side channel 3105. Thus, based on the provision of a plurality of discharge ports 3103 in the pump housing 31, on the one hand, the suction volume of the material in the pump chamber 3101 is increased; on the other hand, the ejection distance of the material due to the pressure difference is reduced, the sufficiency of the dispersion of the material in the dispersion chamber 2101 is increased, and the dispersion effect and dispersion quality of the material are improved. It should be noted that the extension direction F of the side channel 3105 refers to a direction parallel to the flow direction of the slurry. Specifically, the slurry flows from the feed end 3106 of the side channel 3105 to the discharge end 3107.

[0043] Multiple discharge ports 3103 are arranged at equal intervals. Thus, on the one hand, it is possible to ensure that the fluid resistance of each branch is consistent, thereby avoiding the problem of flow tilting toward a certain branch, thereby improving the uniformity of flow distribution, reducing local pressure loss, and balancing the pressure of each discharge port 3103, avoiding the problem of particle sedimentation in low-speed areas or secondary agglomeration in high-speed areas; on the other hand, it reduces the difficulty of processing. For example, in this embodiment, the shape of the discharge port 3103 is circular, so that the circular cross-section has uniform stress distribution when subjected to internal pressure, thereby improving the stability of the slurry flow channel and extending the service life of the centrifugal pump 30. In some embodiments, the shape of the discharge port 3103 can also be, but is not limited to, an ellipse, a square, a trapezoid or a polygon, etc., and the embodiments of the present application do not make specific limitations.

[0044] In some embodiments, the plurality of discharge ports 3103 may be arranged at unequal intervals. For example, while the flow area of ​​the plurality of discharge ports 3103 remains constant from the feed end 3106 to the discharge end 3107, the distance between two adjacent discharge ports 3103 in the plurality of discharge ports 3103 gradually decreases from the feed end 3106 to the discharge end 3107 of the side channel 3105. This allows the distance between materials ejected from each discharge port 3103 to be close, thereby increasing the uniformity of material dispersion.

[0045] In this embodiment, the flow areas of the plurality of discharge ports 3103 remain constant from the feed end 3106 to the discharge end 3107. Therefore, when the flow areas of the plurality of discharge ports 3103 are set to be the same, the manufacturing of the centrifugal pump 30 is facilitated.

[0046] Of course, in some embodiments, the flow areas of the multiple discharge ports 3103 gradually increase from the feed end 3106 to the discharge end 3107. It is understandable that since the pressure of the material at the discharge port 3103 closer to the discharge end 3107 of the side channel 3105 is greater, the flow areas of the multiple discharge ports 3103 are configured to gradually increase from the feed end 3106 to the discharge end 3107 of the side channel 3105 in the embodiment of the present application. This allows the distances of the materials ejected from each discharge port 3103 to be close, thereby increasing the uniformity of material dispersion.

[0047] Please also refer to Figures 2 to 5 , Figure 5 yes Figure 3 A schematic structural diagram of the pump casing 31 of the centrifugal pump 30 from a second perspective. The side channel 3105 has an arc-shaped shape. The line connecting the two ends of the side channel 3105 in the direction from the feed end 3106 to the discharge end 3107 is the first arc segment L1. The central angle corresponding to the first arc segment L1 is the first central angle α. In the direction from the feed end 3106 to the discharge end 3107, the line connecting the centers of the two discharge ports 3103 at both ends is the second arc segment L2. The central angle corresponding to the second arc segment L2 is the second central angle β. Among them, the first central angle α is greater than the second central angle β, and the second central angle β is less than or equal to 100°. Therefore, on the one hand, the shape of the side channel 3105 is roughly arc-shaped, so that the direction of the fluid changes gradually, avoiding the problem of particle collision and agglomeration and local pressure loss caused by sudden turning of the slurry, maintaining the stability of the rheological properties of the slurry, and the centrifugal force field generated by the curvature of the arc channel causes the solid particles in the slurry to migrate moderately to the outside of the arc, offsetting the gravity sedimentation trend, thereby improving the pumping effect of the centrifugal pump 30 on the material; on the other hand, based on the setting of the center of the line connecting the centers of the discharge ports 3103 at both ends of the side channel 3105, the central angle corresponding to the circle is within the appropriate angle, thereby avoiding the problem that the distance between the feed end 3106 of the side channel 3105 and the discharge port 3103 is too close, resulting in the pressure difference of the centrifugal pump 30 being too small and unable to discharge smoothly, thereby improving the conveying effect and efficiency of the centrifugal pump 30 on the material.

[0048] In this embodiment, the side channel 3105 is arranged on the side of the pump housing 31 away from the rotating shaft 10 in the radial direction Y of the rotating shaft 10, thereby avoiding the problem of the slurry fluid in the pump chamber 3101 being directly discharged from the dispersion chamber 2101 along the axial direction X of the rotating shaft 10, thereby forcing the slurry fluid to circulate repeatedly in the side channel 3105 and then be discharged to the dispersion chamber 2101 of the disperser 20, avoiding the problem of idling of the centrifugal pump 30 and improving the feeding effect of the centrifugal pump 30.

[0049] For example, in this embodiment, the side channel 3105 has an arc shape, which reduces the processing difficulty of the side channel 3105, and the curvature radius of the arc-shaped channel enables the slurry fluid to achieve smooth turning, reducing turbulence and energy loss. Specifically, the side channel 3105 is extended in the circumferential direction Z of the rotating shaft 10, that is, the extension direction F of the side channel 3105 is parallel to the circumferential direction Z of the rotating shaft 10. The first central angle α is 170°-340°. It can be understood that when the first central angle α is too small, it indicates that the length of the side channel 3105 in the circumferential direction Z of the rotating shaft 10 is short, which may cause the radial force of the slurry to be unbalanced when the centrifugal pump 30 is working. The insufficient length of the side channel 3105 will also reduce the number of energy superpositions of the slurry fluid, resulting in the inability to fully convert kinetic energy into pressure energy, and causing the slurry fluid to be discharged prematurely, failing to fully accelerate or flow evenly. Therefore, based on the setting of the central angle of the line connecting the feed end 3106 and the discharge end 3107 of the side channel 3105 being within the appropriate angle, the problem of the radial force of the centrifugal pump 30 being unbalanced and causing mechanical damage due to the length of the side channel 3105 being too short, as well as the problem of the pumping effect and pumping capacity of the centrifugal pump 30 being weakened, is avoided, thereby improving the conveying effect and efficiency of the centrifugal pump 30 on the material.

[0050] In some embodiments, the side channel 3105 is provided with guide surfaces 3108 at the discharge end 3107 and the feed end 3106. The guide surfaces 3108 smoothly transition with the flow bottom wall of the side channel 3105 and the end surface of the pump casing 31 facing the impeller 32, thereby reducing the flow resistance of the slurry, lowering energy loss, and reducing wear of the pump casing 31, thereby extending the service life of the centrifugal pump 30.

[0051] In some embodiments, in the direction from the feed end 3106 to the discharge end 3107, the line connecting the centers of the two adjacent discharge ports 3103 is a third arc segment L3. The central angle corresponding to the third arc segment L3 is the third central angle γ, and the third central angle γ is 20°-60°. It can be understood that if the distance between the two adjacent discharge ports 3103 is too small, the diverted materials may impact each other, forming vortexes or backflow problems. When the distance between the adjacent discharge ports 3103 is too large, one of the discharge ports 3103 is close to the feed end 3106 of the side channel 3105, which is easy to cause pressure fluctuations and increase the vibration generated by the centrifugal pump 30 in conveying materials. Therefore, the embodiment of the present application improves the pumping capacity of the centrifugal pump 30 for materials by setting two adjacent discharge ports 3103 with a reasonable spacing, enhances the structural strength of the pump housing 31, and reduces the risk of pressure fluctuations caused by the two discharge ports 3103 set at a long distance, thereby reducing the vibration generated by the centrifugal pump 30 in conveying materials.

[0052] For example, in this embodiment, the first central angle α is 330°, the second central angle β is 90°, and the third central angle γ is 45°. For example, the first central angle α may be, but is not limited to, 170°, 200°, 230°, 260°, 270°, 300°, 330°, or 340°. The third central angle γ may be, but is not limited to, 20°, 30°, 40°, 50°, or 60°. The second central angle β may be, but is not limited to, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90°, or 100°. Alternatively, the first central angle α may be between 260° and 330°, the second central angle β may be between 40° and 90°, and the third central angle γ may be between 30° and 50°.

[0053] It should be noted that the first central angle α, the second central angle β and the third central angle γ can be set according to factors such as the specifications of the centrifugal pump 30 and the type of slurry, and are not specifically limited in the embodiment of the present application.

[0054] The number of discharge ports 3103 is set to 2-5. It is understandable that when the number of discharge ports 3103 is set to one, the distance that the material is ejected into the disperser 20 is large, which reduces the dispersion time of the material in the dispersion chamber 2101 and cannot guarantee a good dispersion effect; when the number of discharge ports 3103 is set too many, the structural strength of the pump housing 31 is reduced, and the flow area of ​​the discharge ports 3103 is reduced, and the discharge of the material is blocked. Therefore, the present application ensures that the centrifugal pump 30 has a suitable pressure difference by setting an appropriate number of discharge ports 3103, so that the distance that the material is ejected into the disperser 20 is not too large, while improving the structural strength of the pump housing 31, extending the service life of the pump housing 31, and making the centrifugal pump 30 have a good ability to transport materials.

[0055] For example, in this embodiment, the number of discharge ports 3103 is set to 3. For example, the number of discharge ports 3103 can be, but is not limited to, 2, 3, 4, or 5. It should be noted that the number of discharge ports 3103 can be set based on factors such as the specifications of the centrifugal pump 30 and the type of slurry, and is not specifically limited in this embodiment of the present application.

[0056] In some embodiments, the discharge port 3103 closest to the discharge end 3107 in the direction from the feed end 3106 to the discharge end 3107 is disposed at the top of the pump housing 31. Thus, when the centrifugal pump 30 is initially started, it can drive the material to gradually fill the pump cavity 3101 from the outside to the inside, thereby forming an effective vacuum within the pump cavity 3101. This improves the suction and discharge capabilities of the centrifugal pump 30, prevents unexhausted gas from mixing with liquid in the material and causing cavitation, and extends the service life of the impeller 32 and the pump housing 31.

[0057] For example, in this embodiment, the plurality of discharge ports 3103 are all disposed on the same arc line concentric with the rotating shaft 10. Thus, by disposing the plurality of discharge ports 3103 on the same arc line concentric with the rotating shaft 10, the uniformity of the structural strength of the pump housing 31 is improved, and the processing and manufacturing of the discharge ports 3103 are facilitated.

[0058] In this embodiment, the slurry flow direction in the discharge port 3103 is parallel to the central axis P of the rotating shaft 10. Therefore, by setting the opening direction of the discharge port 3103 parallel to the axial direction X of the rotating shaft 10, the structural strength of the pump housing 31 at the edge of the discharge port 3103 is enhanced, the service life of the pump housing 31 is extended, and the difficulty of manufacturing the discharge port 3103 is reduced.

[0059] Of course, in some embodiments, the cross-sectional area of ​​the discharge port 3103 gradually expands along the flow direction to convert kinetic energy into static pressure and reduce outlet losses. The expansion angle of the discharge port 3103 is less than or equal to 10°, thereby avoiding the problem of a small expansion angle causing a high proportion of axial flow velocity of the slurry and insufficient radial kinetic energy conversion, and avoiding the problem of a large expansion angle causing flow separation and vortex generation.

[0060] In this embodiment, the orthographic projections of multiple discharge ports 3103 in the projection plane perpendicular to the central axis P of the rotation axis are all located within the orthographic projection of the screen drum 22 in the projection plane perpendicular to the central axis P of the rotation axis, so that the slurry transported by the centrifugal pump 30 can all be sheared and dispersed through the screen drum 22, thereby providing a dispersion effect of the slurry by the dispersion equipment 100.

[0061] In this embodiment, the central axis P of the rotating shaft 10 is parallel to the horizontal plane. Thus, on the one hand, the centrifugal pump 30 and the disperser 20 are in a horizontal position, which facilitates assembly and maintenance, lowers the center of gravity of the disperser 100, and improves the stability and reliability of the disperser 100 during dispersion operation. On the other hand, the horizontal position of the centrifugal pump 30 allows it to be started even when it is not completely filled with liquid, thereby improving the material feeding efficiency of the centrifugal pump 30.

[0062] In some embodiments, the orthographic projection of the side channel 3105 in the projection plane perpendicular to the central axis P of the rotating shaft covers the orthographic projection of the impeller 32 in the projection plane perpendicular to the central axis P of the rotating shaft, thereby avoiding the problem of the slurry fluid directly impacting the pump casing end cover 312 and increasing the energy loss, thereby guiding the slurry fluid to smoothly turn through the side channel 3105 and then be discharged to the dispersion chamber 2101 through the discharge port 3103.

[0063] For example, in this embodiment, the impeller 32 includes an impeller disk 321 and a plurality of blades 322. The impeller disk 321 is sleeved on the outer side of the rotating shaft 10, and the plurality of blades 322 are spaced apart on the outer sidewall of the impeller disk 321. Thus, the plurality of blades 322 spaced apart on the impeller disk 321 improves the anti-clogging performance of the impeller 32, reduces wear of the impeller 32 by materials, and extends the service life of the impeller 32. Furthermore, the impeller 32 is easy to cast or weld, and has a low cost.

[0064] In this embodiment, the centrifugal pump 30 further includes a fixing member 33. The end of the rotating shaft 10 away from the driving member 2 is fixedly connected to the impeller 32 via the fixing member 33. Specifically, the impeller disc 321 is provided with an anti-rotation hole 3211 along the axial direction X of the rotating shaft 10. The rotating shaft 10 is passed through the anti-rotation hole 3211, thereby limiting the rotation of the impeller 32 relative to the rotating shaft 10, thereby achieving synchronous rotation of the rotating shaft 10 and the impeller 32. In some embodiments, a positioning groove 3212 is provided on the side of the impeller disc 321 away from the disperser 20. The fixing member 33 is accommodated in the positioning groove 3212, thereby preventing the positioning member from protruding relative to the impeller 32 and increasing the friction area with the slurry, thereby improving the reliability and stability of the connection between the impeller 32 and the rotating shaft 10.

[0065] In some embodiments, the impeller 32 is configured as a non-metallic structure. The impeller 32 also includes multiple connecting pieces 323, each of which connects two adjacent blades 322 to form a closed flow channel. The non-metallic structure of the impeller 32 reduces production costs, reduces noise generated during operation of the centrifugal pump 30, and prevents the generation of metal debris from friction between the impeller 32 and the slurry, which can affect slurry purity and improve slurry quality. Furthermore, the provision of the connecting pieces 323 enhances the structural strength of the impeller 32, improves its deformation resistance, and extends the service life of the centrifugal pump 30. Furthermore, the closed-loop configuration of the impeller 32 improves its cavitation resistance and forms a high-precision flow channel, enhancing material pumping capacity. In some embodiments, the non-metallic structure may include, but is not limited to, plastic structures, plastic structures, and carbon fiber plastic composite structures. In other embodiments, the impeller 32 may also be configured as a metal structure. Metal structures may be made of, but are not limited to, stainless steel, titanium alloys, and nickel-based alloys.

[0066] In some embodiments, the dispersing device 100 further includes a mounting assembly 4. Mounting assembly 4 includes a mounting base 41 and a roller 42. The dispersing assembly 1 and the driving element 2 are mounted on top of the mounting base 41. The roller 42 is mounted on the bottom of the mounting base 41. This reduces the footprint of the mounting base 41 by mounting both the centrifugal pump 30 and the dispersing body 21 on the same mounting base 41. Furthermore, the presence of the roller 42 on the bottom of the mounting base 41 enhances the flexibility of the dispersing device 100.

[0067] In some embodiments, the mounting member 4 further includes a locking member 43. The locking member 43 is mounted on the mounting base 41 and has a locked state and an unlocked state. In the locked state, the roller 42 is fixed relative to the mounting base 41. In the unlocked state, the roller 42 is rotatable relative to the mounting base 41. This prevents the dispersing device 100 from moving during the slurry dispersing process, thereby increasing safety risks.

[0068] In some embodiments, the mounting member 4 further includes a push rod 44, which is fixed to the mounting base 41. Thus, the provision of the push rod 44 facilitates the user in pushing and pulling the dispersing device 100 to a designated position, thereby improving the user experience. The push rod 44 is mounted on a side of the mounting base 41 close to the driver 2, thereby preventing the push rod 44 from interfering with the feeding operation of the feed port 3102 of the centrifugal pump 30, thereby improving ease of use and safety. Of course, in some embodiments, the push rod 44 can also be mounted at other locations on the mounting base 41, which is not specifically limited in the present embodiment.

[0069] The dispersing device also includes a control unit 3. This control unit 3 is mounted on the driver 2 and is used to control the operating parameters of the driver 2, disperser 20, and centrifugal pump 30. This enhances the intelligence of the dispersing device and locks the connection between the control unit 3 and the driver 2, resulting in a simple and compact structure. In this embodiment, the control unit 3 is mounted on the top of the outer wall of the driver 2 for easy user operation. The control unit 3 may include an on / off switch, parameter setting keys, a touch screen display, or a function controller.

[0070] In some embodiments, the mounting member 4 further includes a shield 45. The shield 45 is connected to the push rod 44 and is disposed above the control member 3, thereby preventing the dispersion device 100 from being accidentally triggered and improving the safety of the dispersion device 100.

[0071] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A dispersion device (100), characterized in that: include: A dispersion component (1), the dispersion component (1) comprising a rotating shaft (10), a disperser (20) and a centrifugal pump (30), the disperser (20) comprising a dispersion body (21) and a screen drum (22), the dispersion body (21) being provided with a dispersion cavity (2101), the screen drum (22) being arranged in the dispersion cavity (2101), the centrifugal pump (30) comprising a pump casing (31) and an impeller (32), the rotating shaft (10) being fixedly connected to the screen drum (22) and the impeller (32) in sequence, the pump casing (31) being provided with a pump cavity (3101), a feed port (3102) and a discharge port (3103), the impeller (32) being arranged in the pump cavity (3101), the discharge port (3103) being arranged in the pump cavity (3101), and the discharge port (3103) being arranged in the pump cavity (3101). The pump housing (31) is located at an end away from the disperser (20), and an inner cavity wall of the pump housing (31) is provided with a side flow channel (3105) connected to the pump cavity (3101) on a side close to the disperser (20), the side flow channel (3105) comprising a feed end (3106) and a discharge end (3107) arranged opposite to each other, the discharge end (3107) being provided with the discharge port (3103), the feed end (3106) and the feed port (3102) being arranged opposite to each other in the axial direction (X) of the rotating shaft (10), the feed port (3102), the pump cavity (3101), the side flow channel (3105), the discharge port (3103) and the dispersion cavity (2101) being connected in sequence to form a slurry flow channel; A driving member (2), the driving member (2) is fixedly connected to the rotating shaft (10) and is used to drive the rotating shaft (10) to drive the screen drum (22) and the impeller (32) to rotate.

2. The dispersing device (100) according to claim 1, characterized in that The discharge ports (3103) are provided in plurality, and the plurality of discharge ports (3103) are arranged at intervals along the extension direction (F) of the side flow channel (3105).

3. The dispersing device (100) according to claim 2, characterized in that The flow areas of the plurality of discharge ports (3103) remain unchanged in the direction from the feed end (3106) to the discharge end (3107); or, the flow areas of the plurality of discharge ports (3103) gradually increase in the direction from the feed end (3106) to the discharge end (3107).

4. The dispersing device (100) according to claim 2, characterized in that The side channel (3105) has an arc-shaped shape, and the line connecting the two ends of the side channel (3105) in the direction from the feed end (3106) to the discharge end (3107) is a first arc segment (L1); the central angle corresponding to the first arc segment (L1) is a first central angle (α); in the direction from the feed end (3106) to the discharge end (3107), the line connecting the centers of the two discharge ports (3103) located at the two ends is a second arc segment (L2), and the central angle corresponding to the second arc segment (L2) is a second central angle (β), wherein the first central angle (α) is greater than the second central angle (β), and the second central angle (β) is less than or equal to 100°.

5. The dispersing device (100) according to claim 2, characterized in that In the direction from the feed end (3106) to the discharge end (3107), the line connecting the centers of two adjacent discharge ports (3103) is a third arc segment (L3), and the central angle corresponding to the third arc segment (L3) is a third central angle (γ), and the third central angle (γ) is 20°-60°.

6. The dispersing device (100) according to claim 2, characterized in that The number of the discharge ports (3103) is set to 2-5.

7. The dispersing device (100) according to claim 2, characterized in that In the direction from the feed end (3106) to the discharge end (3107), the discharge port (3103) closest to the discharge end (3107) is arranged at the top of the pump housing (31).

8. The dispersing device (100) according to claim 2, characterized in that The plurality of discharge ports (3103) are all arranged on the same arc line having the same center as the rotating shaft (10).

9. The dispersing device (100) according to claim 1, characterized in that The slurry flow direction in the discharge port (3103) is parallel to the central axis (P) of the rotating shaft (10).

10. The dispersing device (100) according to claim 1, characterized in that The central axis (P) of the rotating shaft (10) is parallel to the horizontal plane.

11. The dispersing device (100) according to claim 1, characterized in that The impeller (32) comprises an impeller disc (321) and a plurality of blades (322); the impeller disc (321) is sleeved on the outside of the rotating shaft (10); and the plurality of blades (322) are spaced apart on the outer side wall of the impeller disc (321).

12. The dispersing device (100) according to claim 11, characterized in that The impeller (32) is configured as a non-metallic structure. The impeller (32) further comprises a plurality of connecting pieces (323), each of the connecting pieces (323) being connected to two adjacent blades (322) to form a closed flow channel.

13. The dispersing device (100) according to claim 1, characterized in that The dispersing device (100) further comprises a mounting component (4), wherein the mounting component (4) comprises a mounting base (41) and a roller (42), wherein the dispersing component (1) and the driving component (2) are mounted on the top of the mounting base (41), and the roller (42) is mounted on the bottom of the mounting base (41).

14. The dispersing device (100) according to claim 13, characterized in that The mounting component (4) further includes a push rod (44), and the push rod (44) is fixed on the mounting base (41).

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