Slurry dispersing device

Abstract

The present application relates to a slurry dispersing device. The slurry dispersing device comprises: a housing, having a dispersion chamber and a discharge chamber in communication with the dispersion chamber, a feed port in communication with the dispersion chamber and a discharge port in communication with the discharge chamber being provided on the housing; an impeller set, comprising a pressure impeller, a dispersion impeller and a conveying impeller. The pressure impeller is rotatably disposed in the dispersion chamber, and is used to convey a slurry input into the dispersion chamber from the feed port to the discharge chamber when rotating; the dispersion impeller is rotatably disposed in the dispersion chamber, and is used to disperse the slurry entering the dispersion chamber when rotating; the conveying impeller is rotatably disposed in the discharge chamber, and is used to discharge the slurry entering the discharge chamber through the discharge port when rotating.

Description

A slurry dispersion equipment

[0001] This application claims priority to a Chinese patent application filed with the Patent Office of China on June 15, 2023, with application number 202321536135.0 and application name “A Slurry Dispersion Device,” the entire contents of which are incorporated herein by reference.

[0002] This application claims priority to the Chinese patent application filed with the Patent Office of China on June 15, 2023, with application number 202310708271.1 and application name “A Slurry Dispersion Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to the field of pulping technology, and in particular to a pulp dispersion device. Background Art

[0004] Pulping processes are widely used in modern industrial production, such as lithium battery pulping. In the lithium battery pulping process, powder and liquid are typically transported to a pulp mixer for mixing and dispersion to produce a slurry. The slurry discharged from the pulp mixer then enters a slurry dispersion device for further mixing and dispersion to obtain a homogeneous slurry. The more uniform the slurry, the better the performance of the resulting lithium battery.

[0005] In the pulping process of lithium batteries, the slurry dispersion equipment mixes and disperses the slurry during the transportation process. Therefore, the slurry dispersion equipment needs to be equipped with pumping equipment to complete the transportation of the slurry, such as screw pumps, rotor pumps, etc., which makes the structure and process flow of the slurry dispersion equipment complicated.

[0006] Summary of the Invention

[0007] Based on this, it is necessary to provide a slurry dispersion device that improves the above defects, in order to solve the problem that the slurry dispersion device in the prior art needs to be equipped with a pumping device to complete the slurry transportation, which leads to the complexity of the structure and process flow of the slurry dispersion device.

[0008] A slurry dispersing device, comprising:

[0009] A housing having a dispersion chamber and a discharge chamber connected to the dispersion chamber, wherein the housing is provided with a feed port connected to the dispersion chamber and a discharge port connected to the discharge chamber; and

[0010] Impeller assembly, including pressure impeller, dispersion impeller and conveying impeller;

[0011] In which, the pressure impeller is rotatably arranged in the dispersion chamber, and the pressure impeller is used to transport the slurry input into the dispersion chamber from the feed port to the discharge chamber when rotating; the dispersion impeller is rotatably arranged in the dispersion chamber, and the dispersion impeller is used to disperse the slurry entering the dispersion chamber when rotating; the conveying impeller is rotatably arranged in the discharge chamber, and is used to discharge the slurry entering the discharge chamber from the discharge port when rotating.

[0012] In one embodiment, in the direction from the feed port to the discharge chamber, the compression impeller and the dispersion impeller are arranged in sequence.

[0013] In one embodiment, the number of the compression impellers is plural; and / or the number of the dispersion impellers is plural.

[0014] In one embodiment, two compression impellers are provided, and two dispersion impellers are provided;

[0015] In the direction from the feed port to the discharge chamber, the two compression impellers and the two dispersion impellers are arranged in sequence.

[0016] In one embodiment, the plurality of compression impellers are provided in three pieces, and the plurality of dispersion impellers are provided in three pieces;

[0017] In the direction from the feed port to the discharge chamber, the three compression impellers and the three dispersion impellers are arranged in sequence.

[0018] In one embodiment, the compression impeller includes a first impeller seat rotatable relative to the housing and a plurality of first blades connected to the first impeller seat. The plurality of first blades are arranged at intervals along the circumference of the first impeller seat, and each first blade is plate-shaped.

[0019] In one embodiment, each of the first blades is provided with a plurality of through holes for the slurry to pass through.

[0020] In one embodiment, the first blade is detachably connected to the first impeller seat.

[0021] In one embodiment, a plurality of first plug-in slots are formed on the circumferential side surface of the first impeller seat, and the plurality of first plug-in slots are arranged at intervals along the circumference of the first impeller seat;

[0022] Each of the first inserting slots passes through at least one end of the first impeller seat in the axial direction, and each of the first blades is inserted into the corresponding first inserting slot.

[0023] In one embodiment, a first limiting portion is provided on a side wall of the first plug-in slot, and a first limiting matching portion is provided on the first blade;

[0024] The first limiting portion and the first limiting matching portion are limitedly matched to limit the first blade from exiting the first inserting slot along the radial direction of the first impeller seat.

[0025] In one embodiment, the dispersion impeller includes a second impeller seat rotatable relative to the outer casing and second blades connected to the second impeller seat, a plurality of second blades are arranged at intervals along the circumference of the second impeller seat, and each second blade has a plurality of needle-shaped portions arranged at intervals from each other.

[0026] In one embodiment, each of the second blades further includes a mounting portion, each of the needle-shaped portions is fixed to the mounting portion, and the mounting portion is detachably connected to the second impeller seat.

[0027] In one embodiment, a plurality of second plug-in slots are formed on a circumferential side surface of the second impeller seat, and the plurality of second plug-in slots are spaced apart along the circumference of the second impeller seat;

[0028] Each of the second inserting grooves passes through at least one end of the second impeller seat in the axial direction, and each of the mounting portions is inserted into the corresponding second inserting groove.

[0029] In one embodiment, a second limiting portion is provided on the side wall of the second plug-in slot, and a second limiting matching portion is provided on the mounting portion of the second blade;

[0030] The second limiting portion is in limiting cooperation with the second limiting cooperation portion to limit the mounting portion from exiting the second inserting slot along the radial direction of the second impeller seat.

[0031] In the aforementioned slurry dispersion device, after the slurry enters the dispersion chamber from the feed inlet, the impeller, while rotating, pressurizes the slurry, causing it to be transported from the feed inlet to the discharge chamber. Furthermore, after the slurry reaches the discharge chamber, the conveying impeller, while rotating, discharges the slurry from the discharge port. In other words, the slurry can flow from the dispersion chamber to the discharge chamber and then out of the housing through the discharge port, eliminating the need for pumping equipment for slurry transport. This simplifies the structure and process flow of the slurry dispersion device. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] FIG1 is a schematic structural diagram of a slurry dispersion device in one embodiment of the present application;

[0033] FIG2 is a cross-sectional view of a housing of the slurry dispersing apparatus shown in FIG1 ;

[0034] FIG3 is a schematic structural diagram of each impeller inside the housing of the slurry dispersion device in the first embodiment of the present application;

[0035] FIG4 is a schematic structural diagram of each impeller inside the housing of the slurry dispersion device in the second embodiment of the present application;

[0036] FIG5 is a graph showing the variation of the dispersion effect of the slurry over time in the first embodiment shown in FIG3 and the second embodiment shown in FIG4 ;

[0037] FIG6 is a curve showing the change of the viscosity of the slurry over time at different rotation speeds in the second embodiment shown in FIG4 ;

[0038] FIG7 is a curve showing the change in viscosity of the slurry over time in the first embodiment shown in FIG3 and the second embodiment shown in FIG4 under the same rotational speed condition;

[0039] FIG8 is a schematic structural diagram of a pressure delivery impeller in one embodiment of the present application;

[0040] FIG9 is a schematic structural diagram of a pressure delivery impeller in another embodiment of the present application;

[0041] FIG10 is a schematic structural diagram of a pressure delivery impeller in another embodiment of the present application;

[0042] FIG11 is a schematic diagram of the exploded structure of the pressure delivery impeller shown in FIG10 ;

[0043] FIG12 is a schematic structural diagram of a dispersion impeller in one embodiment of the present application;

[0044] FIG13 is a schematic structural diagram of the dispersion impeller shown in FIG12 . DETAILED DESCRIPTION

[0045] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0048] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0049] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0051] 1 to 3 , an embodiment of the present application provides a slurry dispersing device for stirring and dispersing a slurry formed by mixing a powder and a liquid to obtain a slurry having uniformity that meets process requirements. Optionally, the slurry dispersing device may be a disperser.

[0052] The slurry dispersion device includes a housing 10 and an impeller assembly 20. The housing 10 has a dispersion chamber 11 and a discharge chamber 12 connected to the dispersion chamber 11. The housing 10 is provided with an inlet 13 connected to the dispersion chamber 11 and an outlet 14 connected to the discharge chamber 12, so that slurry can enter the dispersion chamber 11 through the inlet 13 and the slurry in the discharge chamber 12 can be discharged from the housing 10 through the outlet 14.

[0053] The impeller assembly 20 includes a pressure impeller 21, a dispersion impeller 23, and a conveying impeller 25. The pressure impeller 21 is rotatably disposed in the dispersion chamber 11 relative to the housing 10. The pressure impeller 21 is used to convey the slurry input into the dispersion chamber 11 from the feed port 13 to the discharge chamber 12 during rotation. The dispersion impeller 23 is rotatably disposed in the dispersion chamber 11 relative to the housing 10, and is used to disperse the slurry entering the dispersion chamber 11 during rotation. The conveying impeller 25 is rotatably disposed in the discharge chamber 12 relative to the housing 10, and is used to discharge the slurry entering the discharge chamber 12 to the outside of the housing 10 through the discharge port 14 during rotation. Specifically, the conveying impeller 25 provides centrifugal force during rotation, and the slurry is quickly discharged from the discharge chamber 12 through the discharge port 14 under the action of the centrifugal force, thereby preventing the slurry from agglomerating in the discharge chamber 12 to form large particle agglomerates.

[0054] During the actual dispersion operation of the slurry dispersion equipment described above, slurry is first fed into the dispersion chamber 11 through the feed port 13. The pressure impeller 21 rotates to pressurize the slurry, causing it to be transported to the discharge chamber 12. During this process, the dispersion impeller 23 stirs and disperses the slurry to eliminate agglomerates formed by the agglomeration effect, ensuring that the slurry uniformity meets process requirements. Once the slurry enters the discharge chamber 12, the delivery impeller 25 rotates to drive the slurry out of the discharge port 14 and into the housing 10.

[0055] Thus, in the present application, after the slurry enters the dispersion chamber 11 through the feed port 13, the pressure-feeding impeller 21, while rotating, can pressurize the slurry, causing the slurry to be transported from the feed port 13 to the discharge chamber 12. Furthermore, after the slurry reaches the discharge chamber 12, the delivery impeller 25, while rotating, can discharge the slurry through the discharge port 14. In other words, the slurry can flow from the dispersion chamber 11 to the discharge chamber 12 and then be discharged from the discharge port 14 to the outside of the housing 10, eliminating the need for a pumping device for transporting the slurry. This helps simplify the structure and process flow of the slurry dispersion equipment.

[0056] It is understood that, in addition to conveying the slurry, the impeller 21 has blades with sharp corners and edges that can also stir and disperse the slurry to a certain extent. Similarly, in addition to conveying the slurry, the impeller 25 has blades with sharp corners and edges that can also stir and disperse the slurry to a certain extent.

[0057] Specifically in the embodiment, in the direction from the feed inlet 13 to the discharge chamber 12 (i.e., from top to bottom in FIG1 ), the pressure impeller 21 and the dispersion impeller 23 are arranged in this order, so that the slurry entering the dispersion chamber 11 from the feed inlet 13 first flows toward the discharge chamber 12 under the action of the pressure impeller 21, and passes through the dispersion impeller 23 during the flow toward the discharge chamber 12. The dispersion impeller 23 stirs and disperses the slurry while passing through the dispersion impeller 23.

[0058] Optionally, the number of pressure impellers 21 can be two or more (i.e., multiple); and / or the number of dispersion impellers 23 can also be two or more (i.e., multiple). In this way, using multiple pressure impellers 21 to pressure-feed the slurry makes the slurry flow from the dispersion chamber 11 to the discharge chamber 12 smoother and more stable. Using multiple dispersion impellers 23 to disperse the slurry multiple times greatly improves the dispersion effect of the slurry.

[0059] It should be noted that since the pressure impeller 21 can also play a certain stirring and dispersing role on the slurry, during the process of the slurry entering the dispersion chamber 11 from the feed port 13 and being transported to the discharge chamber 12, the slurry passes through the multi-stage dispersion of each pressure impeller 21 and each dispersion impeller 23, which makes the dispersion process of the slurry gentler, avoids rapid temperature rise of the slurry due to excessive dispersion, and greatly reduces the risk of denaturation of the slurry due to rapid temperature rise.

[0060] Specifically, in the embodiment shown in Figure 3 , there are two pressure impellers 21 and two dispersion impellers 23. The two pressure impellers 21 and the two dispersion impellers 23 are arranged in this order from the feed inlet 13 to the discharge chamber 12 (i.e., from top to bottom in Figure 1 ). Thus, the slurry entering the dispersion chamber 11 undergoes four-stage dispersion by passing through the two pressure impellers 21 and the two dispersion impellers 23 in sequence.

[0061] Specifically, in the embodiment shown in Figure 4 , there are three pressure impellers 21 and three dispersion impellers 23. The three pressure impellers 21 and the three dispersion impellers 23 are arranged sequentially from the feed inlet 13 to the discharge chamber 12 (i.e., from top to bottom in Figure 1 ). Thus, the slurry entering the dispersion chamber 11 undergoes six-stage dispersion by passing through the three pressure impellers 21 and the three dispersion impellers 23 in sequence. This quickly reduces the slurry's viscosity and maintains it at a low level, facilitating the production of a more uniform slurry.

[0062] FIG5 shows a graph comparing the dispersion effects of the slurry in the first embodiment shown in FIG3 and the second embodiment shown in FIG4 . As can be seen from FIG5 , in the second embodiment, the curvature of the dispersion effect curve is relatively large at the beginning of the powder entering the dispersion chamber 11, and the dispersion effect curve tends to be flat when the powder reaches the second and third pressure delivery impellers 21. When the slurry reaches the first dispersion impeller 23, the curvature of the dispersion effect curve rises significantly again. After the powder passes through the third dispersion impeller 23, the curvature of the dispersion effect curve tends to be flat again. Compared with the second embodiment, the dispersion effect curve in the first embodiment is relatively flat as a whole, and the curvature of the dispersion effect curve increases significantly only after the slurry reaches the dispersion impeller 23. It can be seen that the dispersion effect of the slurry dispersion device in the second embodiment on the slurry is significantly improved compared with the dispersion effect of the slurry dispersion device in the first embodiment on the slurry.

[0063] Figure 6 shows the viscosity of the slurry over time at different rotational speeds for the second embodiment shown in Figure 4 . In the second embodiment, the slurry viscosity is relatively high at the feed port 13, ranging from approximately 20,000 Pa·s to 200,000 Pa·s. As the slurry is stirred and dispersed by the three pressure impellers 21, the three dispersion impellers 23, and the delivery impeller 25, the viscosity of the slurry gradually decreases, reaching a viscosity between 2,000 Pa·s and 15,000 Pa·s at the discharge port 14. Figure 6 shows that the rate of viscosity decrease varies at different speeds (the speed of each impeller). For speeds V3 > V2 > V1, the rate of viscosity decreases more slowly from V3 to V1. In other words, the higher the speed of each impeller, the shorter the time it takes for the slurry viscosity to reach the designed value. Therefore, by adjusting the speed of each impeller, the slurry viscosity can be achieved in a shorter time.

[0064] Figure 7 shows the time-varying curves of the slurry viscosity in the first and second embodiments, when the impellers are rotated at the same speed of V1. As can be seen from Figure 7, at the same speed, the time required for the slurry to reach the designed viscosity is shorter in the slurry dispersion apparatus of the second embodiment than in the slurry dispersion apparatus of the first embodiment, indicating that the slurry dispersion effect of the slurry dispersion apparatus of the second embodiment is improved compared to that of the slurry dispersion apparatus of the first embodiment.

[0065] Referring to Figures 8 and 9 , in an embodiment of the present application, the compression impeller 21 includes a first impeller seat 211 rotatable relative to the housing 10 and a plurality of first blades 213 connected to the first impeller seat 211. The plurality of first blades 213 are arranged at intervals along the circumference of the first impeller seat 211, and each first blade 213 is plate-shaped. Thus, designing the first blades 213 to be plate-shaped is beneficial for increasing the contact area between the first blades 213 and the slurry, thereby improving the slurry conveying effect, so that the slurry can be stably and continuously conveyed to the discharge chamber 12. Optionally, the torsion angle of the first blades 213 of the compression impeller 21 is between 5° and 85°.

[0066] Specifically, in this embodiment, each first blade 213 is provided with a plurality of through-holes a for passage of the slurry, thereby enhancing the slurry dispersion effect of the compression impeller 21 while ensuring a good compression effect of the slurry on the slurry by the compression impeller 21. It is understood that the through-holes a extend through opposite sides of the first blade 213.

[0067] Optionally, the through hole a can be a circular hole (see FIG8 ), a slotted hole (see FIG9 ), a waist-shaped hole, a rectangular hole, or a special-shaped hole, which is not limited here. When the through hole a is a slotted hole (see FIG9 ), each slotted hole can be arranged horizontally or longitudinally, which is not limited here. It should be noted that the through hole a on the first blade 213 is not required. In other embodiments, the through hole a is not provided on the first blade 213. In this case, the pressure delivery effect of the impeller 21 on the slurry is better, but the dispersion effect on the slurry is weakened.

[0068] It should be noted that, in some embodiments, each first blade 213 and the first impeller seat 211 may be integrally formed, or may be fixedly connected by welding or other methods.

[0069] Of course, in other embodiments, as shown in Figures 10 and 11, each first blade 213 of the compression impeller 21 is detachably connected to the first impeller seat 211. In this way, on the one hand, the first impeller seat 211 and each first blade 213 can be processed separately, which helps to reduce the difficulty of processing the compression impeller 21; on the other hand, when it is necessary to adjust the bending angle of the first blade 213, the first blade 213 can be directly removed from the first impeller seat 211, adjusted the bending angle, and then installed, which is convenient for adjusting the bending angle of the first blade 213; on the other hand, when the first blade 213 is damaged, the damaged first blade 213 can be removed from the first impeller seat 211, repaired, and then installed or replaced with a new first blade 213, which is convenient for repairing or replacing the first blade 213. It can be understood that since the blade is thin, it can be deformed under the action of external force. Therefore, a tool can be used to apply a force (such as knocking or bending) to the first blade 213 to cause the first blade 213 to deform, so as to achieve the purpose of adjusting the bending angle of the first blade 213.

[0070] Furthermore, a plurality of first plug-in slots 2111 are provided on the circumferential side surface of the first impeller seat 211, and the plurality of first plug-in slots 2111 are arranged at intervals along the circumference of the first impeller seat 211. Each first plug-in slot 2111 passes through at least one axial end of the first impeller seat 211. When the first blade 213 needs to be installed, the first blade 213 is inserted into the first plug-in slot 2111 from the through end of the first plug-in slot 2111. When the first blade 213 needs to be removed, the first blade 213 is pulled out from the through end of the first plug-in slot 2111. In this way, the installation and removal of the first blade 213 are convenient and quick, and the maintenance or replacement of the first blade 213 is convenient.

[0071] Furthermore, each first insertion slot 2111 has a first limiting portion 2113 on its sidewall, and each first blade 213 has a first limiting engagement portion 2131. The first limiting portion 2113 cooperates with the first limiting engagement portion 2131 to restrict the first blade 213 from exiting the corresponding first insertion slot 2111 in the radial direction of the first impeller seat 211. Thus, each first blade 213 is retained within the corresponding first insertion slot 2111 by the limiting engagement between the first limiting engagement portion 2131 and the first limiting portion 2113, effectively preventing the first blade 213 from exiting the first insertion slot 2111 in the radial direction of the first impeller seat 211 due to centrifugal force when the first impeller seat 211 drives the first blade 213 to rotate.

[0072] Optionally, the first limiting portion 2113 is a limiting protrusion, and the first limiting mating portion 2131 is a limiting groove. The limiting protrusion is located within the limiting groove, thereby limiting the position of the first blade 213 and preventing the first blade 213 from disengaging from the first insertion groove 2111 along the radial direction of the first impeller seat 211. It is understood that the limiting groove extends longitudinally along the extension direction of the first insertion groove 2111, so that the limiting mating between the limiting groove and the limiting protrusion does not affect the insertion of the first blade 213 from the through end of the first insertion groove 2111 into the first insertion groove 2111.

[0073] It should be noted that the first limiting portion 2113 is not limited to a limiting protrusion and the first limiting matching portion 2131 is not limited to a limiting groove. In other embodiments, the first limiting portion 2113 can also be a limiting groove, and the first limiting matching portion 2131 can be a limiting protrusion, as long as it can limit the radial movement of the first blade 213 along the first impeller seat 211. This is not limited here.

[0074] Referring to Figures 12 and 13 , in an embodiment of the present application, the dispersing impeller 23 includes a second impeller seat 231 rotatable relative to the housing 10 and second blades 233 connected to the second impeller seat 231. Multiple second blades 233 are spaced apart along the circumference of the second impeller seat 231. Each second blade 233 has multiple needle-shaped portions 2332 spaced apart from one another. As the second impeller seat 231 rotates each second blade 233, the needle-shaped portions 2332 on each second blade 233 efficiently disperse the slurry, significantly improving the dispersion effect of the slurry, ensuring the elimination of large particle agglomerates in the slurry, and facilitating improved slurry uniformity. Optionally, the twist angle of the second blades 233 of the dispersing impeller 23 is between 5° and 85°. Optionally, the needle-shaped portions 2332 can be elongated columns, such as cylinders, prisms, or irregularly shaped columns, without limitation.

[0075] Specifically, in this embodiment, each second blade 233 further includes a mounting portion 2334, to which each needle-shaped portion 2332 is fixedly connected. The mounting portion 2334 is detachably connected to the second impeller seat 231. This allows the second impeller seat 231 and each second blade 233 to be processed separately, thereby reducing the difficulty of processing the dispersion impeller 23. Furthermore, when the bending angle of a second blade 233 needs to be adjusted, the second blade 233 can be simply removed from the second impeller seat 231, adjusted, and then reinstalled, thereby facilitating adjustment of the bending angle of the second blade 233. Furthermore, if a second blade 233 is damaged, the damaged second blade 233 can be removed from the second impeller seat 231, repaired, and then reinstalled, or replaced, thereby facilitating repair or replacement of the second blade 233. It can be understood that since the blade is thin, it can be deformed under the action of external force. Therefore, a tool can be used to apply a force (such as knocking or bending) to the second blade 233 to deform the second blade 233, so as to achieve the purpose of adjusting the bending angle of the second blade 233.

[0076] It should be noted that the mounting portion 2334 and the needle-shaped portions 2332 thereon may be integrally formed, or may be fixedly connected by welding or other methods, which is not limited here.

[0077] Furthermore, a plurality of second plug-in slots 2312 are provided on the circumferential side surface of the second impeller seat 231, and the plurality of second plug-in slots 2312 are arranged at intervals along the circumference of the second impeller seat 231. Each second plug-in slot 2312 passes through at least one axial end of the second impeller seat 231. When the second blade 233 needs to be installed, the mounting portion 2334 of the second blade 233 is inserted into the second plug-in slot 2312 from the through end of the second plug-in slot 2312. When the second blade 233 needs to be removed, the mounting portion 2334 of the second blade 233 is pulled out from the through end of the second plug-in slot 2312. In this way, the installation and removal of the second blade 233 are quick and easy, so as to facilitate the maintenance or replacement of the second blade 233.

[0078] Furthermore, each second insertion slot 2312 has a second limiting portion 2314 on its sidewall, and each second blade 233 has a second limiting engagement portion 2336 on its mounting portion 2334. The second limiting portion 2314 cooperates with the second limiting engagement portion 2336 to restrict the mounting portion 2334 of the second blade 233 from exiting the corresponding second insertion slot 2312 in the radial direction of the second impeller seat 231. Thus, the second limiting engagement portion 2336 and the second limiting portion 2314 restrict the mounting portion 2334 of each second blade 233 within the corresponding second insertion slot 2312, effectively preventing the mounting portion 2334 of the second blade 233 from exiting the second insertion slot 2312 in the radial direction of the second impeller seat 231 when the second impeller seat 231 drives the second blade 233 to rotate.

[0079] Optionally, the second limiting portion 2314 is a limiting protrusion, and the second limiting mating portion 2336 is a limiting groove. The limiting protrusion is located within the limiting groove, thereby limiting the mounting portion 2334 of the second blade 233 and preventing the mounting portion 2334 of the second blade 233 from being disengaged from the second insertion groove 2312 in the radial direction of the second impeller seat 231. It will be understood that the limiting groove extends longitudinally along the extension direction of the second insertion groove 2312, so that the limiting mating between the limiting groove and the limiting protrusion does not affect the insertion of the mounting portion 2334 of the second blade 233 into the second insertion groove 2312 from the through end of the second insertion groove 2312.

[0080] It should be noted that the second limiting portion 2314 is not limited to a limiting protrusion and the second limiting matching portion 2336 is not limited to a limiting groove. In other embodiments, the second limiting portion 2314 can also be a limiting groove, and the second limiting matching portion 2336 can be a limiting protrusion, as long as the radial movement of the second blade 233 along the second impeller seat 231 can be limited.

[0081] It should also be noted that each mounting portion 2334 and the second impeller seat 231 are not limited to being assembled in a detachable manner. In other embodiments, each mounting portion 2334 and the second impeller seat 231 can be integrally formed or fixed by welding or other methods, which are not limited here.

[0082] As shown in Figure 1, in an embodiment of the present application, the slurry dispersion device further includes a rotating shaft 30 and a driving member 40. The rotating shaft 30 is rotatably mounted on the housing 10, and passes through the dispersion chamber 11 and the discharge chamber 12 in sequence, and is driven and connected to the driving member 40 so that the driving member 40 can drive the rotating shaft 30 to rotate. Each pressure impeller 21 and each dispersion impeller 23 are coaxially mounted on the rotating shaft 30 in sequence. In this way, when the driving member 40 drives the rotating shaft 30 to rotate, the rotating shaft 30 can drive each pressure impeller 21 and each dispersion impeller 23 thereon to rotate synchronously, which is conducive to simplifying the equipment structure.

[0083] The slurry dispersion apparatus further includes a transmission assembly 50, which is connected between the driving member 40 and the rotating shaft 30 to transmit the power output by the driving member 40 to the rotating shaft 30, thereby driving the rotating shaft 30 to rotate. Alternatively, the driving member 40 may be a servo motor, a variable frequency motor, an excitation synchronous motor, or a DC motor. The transmission assembly 50 may be a V-belt drive assembly, a bevel gear drive assembly, a chain drive assembly, a synchronous belt drive assembly, or a coupling.

[0084] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0085] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A slurry dispersing device, It is characterized in that include: A housing (10) having a dispersion chamber (11) and a discharge chamber (12) connected to the dispersion chamber (11); the housing (10) is provided with a feed port (13) connected to the dispersion chamber (11) and a discharge port (14) connected to the discharge chamber (12); and An impeller assembly (20) includes a pressure impeller (21), a dispersion impeller (23) and a transport impeller (25); The pressure impeller (21) is rotatably disposed in the dispersion chamber (11) and is used to convey the slurry input into the dispersion chamber (11) from the feed port (13) to the discharge chamber (12) when rotating; the dispersion impeller (23) is rotatably disposed in the dispersion chamber (11) and is used to disperse the slurry entering the dispersion chamber (11) when rotating; the conveying impeller (25) is rotatably disposed in the discharge chamber (12) and is used to discharge the slurry entering the discharge chamber (12) from the discharge port (14) when rotating.

2. The slurry dispersing device according to claim 1, It is characterized in that In the direction from the feed port (13) to the discharge chamber (12), the pressure impeller (21) and the dispersion impeller (23) are arranged in sequence.

3. The slurry dispersing device according to claim 1 or 2, It is characterized in that The plurality of compression impellers (21) are provided; and / or the plurality of dispersion impellers (23) are provided.

4. The slurry dispersing device according to any one of claims 1 to 3, It is characterized in that The number of the compression impellers (21) is two, and the number of the dispersion impellers (23) is two; In the direction from the feed port (13) to the discharge chamber (12), the two pressure impellers (21) and the two dispersion impellers (23) are arranged in sequence.

5. The slurry dispersing device according to any one of claims 1 to 4, It is characterized in that The number of the pressure-feeding impellers (21) is three, and the number of the dispersion impellers (23) is three; In the direction from the feed port (13) to the discharge chamber (12), the three pressure impellers (21) and the three dispersion impellers (23) are arranged in sequence.

6. The slurry dispersing device according to any one of claims 1 to 5, It is characterized in that The pressure impeller (21) comprises a first impeller seat (211) rotatable relative to the housing (10) and a plurality of first blades (213) connected to the first impeller seat (211); the plurality of first blades (213) are arranged at intervals along the circumference of the first impeller seat (211); and each of the first blades (213) is in the shape of a plate.

7. The slurry dispersing device according to claim 6, It is characterized in that Each of the first blades (213) is provided with a plurality of through holes (a) for the slurry to pass through.

8. The slurry dispersing device according to claim 6 or 7, It is characterized in that The first blade (213) is detachably connected to the first impeller seat (211).

9. The slurry dispersing device according to claim 8, It is characterized in that A plurality of first plugging grooves (2111) are provided on the circumferential side surface of the first impeller seat (211), and the plurality of first plugging grooves (2111) are arranged at intervals along the circumference of the first impeller seat (211); Each of the first plug-in slots (2111) passes through at least one end of the first impeller seat (211) in the axial direction, and each of the first blades (213) is plugged into the corresponding first plug-in slot (2111).

10. The slurry dispersing device according to claim 9, It is characterized in that The side wall of the first plugging slot (2111) is provided with a first limiting portion (2113), and the first blade (213) is provided with a first limiting matching portion (2131); The first limiting portion (2113) is limitedly matched with the first limiting matching portion (2131) to limit the first blade (213) from exiting the first insertion slot (2111) along the radial direction of the first impeller seat (211).

11. The slurry dispersing device according to any one of claims 1 to 10, It is characterized in that The dispersion impeller (23) comprises a second impeller seat (231) rotatable relative to the housing (10) and second blades (233) connected to the second impeller seat (231), wherein a plurality of second blades (233) are arranged at intervals along the circumference of the second impeller seat (231), and each of the second blades (233) has a plurality of needle-shaped portions (2332) arranged at intervals from each other.

12. The slurry dispersing device according to claim 11, It is characterized in that Each of the second blades (233) further comprises a mounting portion (2334), and each of the needle-shaped portions (2332) is fixedly connected to the mounting portion (2334), and the mounting portion (2334) is detachably connected to the second impeller seat (231).

13. The slurry dispersing device according to claim 12, It is characterized in that A plurality of second plug-in grooves (2312) are provided on the circumferential side of the second impeller seat (231), and the plurality of second plug-in grooves (2312) are arranged at intervals along the circumference of the second impeller seat (231); Each of the second insertion grooves (2312) penetrates the second impeller seat (231) in the axial direction to At least one end, each of the mounting portions (2334) is plugged into the corresponding second plug-in slot (2312).

14. The slurry dispersing device according to claim 13, It is characterized in that A second limiting portion (2314) is provided on the side wall of the second plug-in slot (2312), and a second limiting matching portion (2336) is provided on the mounting portion (2334) of the second blade (233); The second limiting portion (2314) is limitedly matched with the second limiting matching portion (2336) to limit the mounting portion (2334) from withdrawing from the second plug-in slot (2312) along the radial direction of the second impeller seat (231).

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