dispersing device

Abstract

This utility model discloses a dispersion device. The dispersion device includes a dispersion cylinder and a rotor. The dispersion cylinder is provided with a dispersion chamber, a feed inlet, and a discharge outlet. The dispersion chamber is connected to the feed inlet and the discharge outlet. The feed inlet is located at the bottom of the dispersion cylinder. The rotor includes a rotating shaft and a degassing cylinder. The degassing cylinder is disposed in the dispersion chamber and is fixedly connected to the rotating shaft. The gap between the outer wall of the degassing cylinder and the inner wall of the dispersion cylinder in the radial direction of the dispersion cylinder is 1mm-10mm. Using the dispersion device provided by this utility model, on the one hand, by controlling the gap between the outer wall of the degassing cylinder and the inner wall of the dispersion cylinder in the radial direction of the dispersion cylinder within a preset size range, the dispersion device can produce a film of fixed thickness to meet the coating requirements of the slurry. On the other hand, the rotating shaft drives the degassing cylinder to rotate, thereby dispersing and shearing the slurry in the dispersion chamber, reducing the viscosity of the slurry, and promoting the removal of air bubbles in the slurry, thus improving the degassing efficiency and degassing effect of the slurry.

Description

Technical Field

[0001] This utility model relates to the technical field of slurry dispersion and degassing, and in particular to a dispersion device. Background Technology

[0002] During the pulping process, air bubbles in the slurry can lead to uneven coating and abnormal electrode porosity. This is especially true for silicon-carbon anode slurries, where the nano-silicon coating on the surface of the silicon-carbon anode slurry can react with water to generate hydrogen. Moreover, silicon-carbon materials have a large specific surface area, making it easy for hydrogen to be adsorbed onto the material surface.

[0003] Existing dispersion devices use vacuum degassing technology to remove bubbles. However, the film formed by the dispersion device under centrifugal force is relatively thick, the slurry viscosity is high, and the tiny bubbles in the slurry cannot overcome migration resistance to reach the surface and thus cannot meet the coating requirements of the slurry. Utility Model Content

[0004] In view of this, one objective of this utility model is to provide a dispersion device to solve the technical problem that the film formed by the dispersion device under centrifugal force in the prior art is too thick, the slurry viscosity is too high, and the micro bubbles in the slurry cannot overcome the migration resistance to reach the surface and thus cannot meet the coating requirements of the slurry.

[0005] This utility model provides a dispersion device, including a dispersion cylinder and a rotor. The dispersion cylinder is provided with a dispersion chamber, a feed inlet and a discharge outlet. The dispersion chamber is connected to the feed inlet and the discharge outlet. The feed inlet is located at the bottom of the dispersion cylinder. The rotor includes a rotating shaft and a degassing cylinder. The degassing cylinder is disposed in the dispersion chamber and is fixedly connected to the rotating shaft. The gap between the outer side wall of the degassing cylinder and the inner side wall of the dispersion cylinder in the radial direction of the dispersion cylinder is 1mm-10mm.

[0006] In one possible implementation, the degassing cylinder includes a flow guide plate and a degassing cylinder body. The flow guide plate is connected to one end of the degassing cylinder body near the feed inlet and forms a flow channel with the inner bottom wall of the dispersion cylinder. The flow channel is connected to the gap and the feed inlet.

[0007] In one possible implementation, the degassing cylinder is provided with a plurality of degassing structures, which are spaced apart in the circumferential direction of the dispersion cylinder. Each degassing structure includes at least one of a degassing hole, a degassing groove, and a degassing protrusion.

[0008] In one possible implementation, the degassing cylinder further includes a degassing cover plate connected to the end of the degassing cylinder body away from the feed inlet, and the rotating shaft is fixedly connected to the guide plate and / or the degassing cover plate.

[0009] In one possible implementation, the guide plate, the degassing cylinder, and the degassing cover are connected to form a degassing chamber. The degassing cover is provided with at least one through hole communicating with the degassing chamber and the dispersion chamber. The dispersion cylinder is also provided with a suction port communicating with the dispersion chamber. The suction port is used to communicate with a vacuum device.

[0010] In one possible implementation, the discharge port is positioned at a higher height in the axial direction of the dispersion cylinder than the suction port is in the axial direction of the dispersion cylinder.

[0011] In one possible implementation, the dispersion device further includes a gas processing module connected to the suction port, the gas processing module being configured as a hydrogen combustion module; or, configured as a hydrogen collection module.

[0012] In one possible implementation, the top of the dispersion cylinder is provided with the suction port, which is located near at least one of the through holes in the radial direction of the dispersion cylinder.

[0013] In one possible implementation, the degassing cover includes a connecting portion and a stop portion. The connecting portion is connected to the rotating shaft, and the stop portion is connected between the connecting portion and the degassing cylinder. The stop portion is inclined relative to the connecting portion and converges towards the rotation axis of the rotating shaft from the direction from the guide plate to the degassing cover.

[0014] In one possible implementation, the dispersing device further includes a feed pump, a discharge pump, and a controller. The feed pump is connected to the inlet, the discharge pump is connected to the outlet, and the controller is used to determine the degassing time of the dispersing device based on the flow rates of the feed pump and / or the discharge pump.

[0015] The dispersion device provided by this utility model, on the one hand, controls the gap between the outer wall of the degassing cylinder and the inner wall of the dispersion cylinder in the radial direction of the dispersion cylinder within a preset size range, thereby enabling the dispersion device to produce a film of fixed thickness to meet the coating requirements of the slurry; on the other hand, the rotating shaft drives the degassing cylinder to rotate, thereby dispersing and shearing the slurry in the dispersion chamber, reducing the viscosity of the slurry, and promoting the removal of air bubbles in the slurry, thus improving the degassing efficiency and degassing effect of the slurry. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the dispersing device provided in an embodiment of the present invention.

[0018] Figure 2 yes Figure 1 A schematic diagram of a partial structure of the dispersion device.

[0019] Figure 3 yes Figure 1 A cross-sectional view of a portion of the dispersion device.

[0020] Explanation of main reference numerals: Dispersion device - 100; Dispersion cylinder - 10; Dispersion chamber - 101; Inlet - 102; Outlet - 103; Suction port - 104; Rotor - 20; Drainage channel - 201; Rotating shaft - 21; Degassing cylinder - 22; Degassing structure - 2201; Degassing chamber - 2202; Through hole - 2203; Drainage plate - 221; Degassing cylinder body - 222; Degassing cover plate - 223; Connecting part - 2231; Stop part - 2232; Vacuum equipment - 30; Gas treatment module - 40; Feed pump - 50; Discharge pump - 60; Controller - 70; Liquid level detector - 80; Gap - D; First height - H1; Second height - H2; Rotation axis - P; Axial direction - X; Radial direction - Y; Circumferential direction - Z.

[0021] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] It is understood that the terminology in the specification, claims, and accompanying drawings of this utility model is for describing specific embodiments only and is not intended to limit the utility model. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Unless the context clearly states otherwise, the singular forms "a" and "described" are also intended to include the plural forms. The term "comprising," and any variations thereof, are intended to cover non-exclusive inclusion. Furthermore, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of this utility model, wherein terms indicating direction such as up, down, left, and right refer only to the position of the illustrated structure in the corresponding drawings. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set on" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The following description describes preferred embodiments of the present invention; however, the foregoing description is intended to illustrate the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0025] The term "slurry" refers to a stable suspension formed by mixing and dispersing powder and liquid materials. Powder refers to slurry in powder form, while liquid refers to slurry in liquid form.

[0026] The term "dispersion" refers to the process by which particle agglomerates in a slurry are fully broken up to form a stable solid-liquid suspension system.

[0027] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the dispersing device 100 provided in this embodiment of the present invention; Figure 2 yes Figure 1 A schematic diagram of a partial structure of the dispersion device 100; Figure 3 yes Figure 1A cross-sectional view of a partial structure of the dispersion device 100. The dispersion device 100 includes a dispersion cylinder 10 and a rotor 20. The dispersion cylinder 10 is provided with a dispersion chamber 101, a feed inlet 102 and a discharge outlet 103. The dispersion chamber 101 is connected to the feed inlet 102 and the discharge outlet 103. The feed inlet 102 is located at the bottom of the dispersion cylinder 10. The rotor 20 includes a rotating shaft 21 and a degassing cylinder 22. The degassing cylinder 22 is disposed in the dispersion chamber 101 and is fixedly connected to the rotating shaft 21. The gap D between the outer wall of the degassing cylinder 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 is 1mm-10mm.

[0028] The dispersion device 100 provided by this utility model, on the one hand, controls the gap D between the outer wall of the degassing cylinder 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 to be within a preset size range, so that the dispersion device 100 can produce a film of fixed thickness to meet the coating requirements of the slurry; on the other hand, the rotating shaft 21 drives the degassing cylinder 22 to rotate, so as to disperse and shear the slurry in the dispersion chamber 101, reduce the viscosity of the slurry, and promote the release of bubbles in the slurry, thereby improving the degassing efficiency and degassing effect of the slurry.

[0029] Understandably, when the gap D between the outer wall of the deaerator 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 is too small, the flow space of the slurry at the gap D is limited, the shear force is too large, which may lead to excessive particle breakage or agglomeration, affecting the dispersion stability of the slurry, and easily clogging the deaerator 22, reducing production efficiency and increasing equipment wear. When the gap D between the outer wall of the deaerator 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 is too large, the shear force is insufficient, the particles in the slurry are not evenly dispersed, resulting in large particles or agglomerates in the slurry, affecting the subsequent coating quality, and reducing the slurry flow rate and dispersion efficiency. Therefore, by controlling the gap D between the outer wall of the deaerator 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 to be 1mm-10mm, the dispersion device 100 can perform good shearing and dispersion of the slurry, improve the uniformity of the slurry flow rate, ensure the consistency of the slurry, and meet the coating requirements of the slurry. For example, the gap D between the outer wall of the deaerator 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 can be, but is not limited to, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. It should be noted that the gap D between the outer wall of the deaerator 22 and the inner wall of the dispersion cylinder 10 in the radial direction Y of the dispersion cylinder 10 can be set according to factors such as the type of slurry, the material of the deaerator 22, and the material of the dispersion cylinder 10. This embodiment of the present invention does not impose specific limitations.

[0030] For the sake of accuracy, all references to direction in this article should be expressed in terms of direction. Figure 3For reference, the rotating shaft 21 has a rotation axis P. The term "axial direction X" refers to the direction parallel to the rotation axis P of the rotating shaft 21, where the X-axis is the left-right direction (with the positive X-axis pointing to the right). The term "radial direction Y" refers to the direction perpendicular to the rotation axis P of the rotating shaft 21, i.e., along the radius of the cross-section of the rotating shaft 21, where the Y-axis is the up-down direction (with the positive Y-axis pointing upwards). The term "circumferential direction Z" refers to the circumferential direction of the rotating shaft 21, i.e., the direction surrounding the rotation axis P of the rotating shaft 21. The axial direction X, radial direction Y, and circumferential direction Z together constitute the three orthogonal directions of the rotating shaft 21. For ease of description, the up-down, left-right, and front-back orientations in this utility model are relative positions and do not constitute a limitation. The axial direction X, radial direction Y, and circumferential direction Z of the rotating shaft 21 can be customized according to the specific structure of the product and the perspective presented in the accompanying drawings; this utility model does not impose specific limitations. The axial direction X of the dispersion cylinder 10 is parallel to the axial direction X of the rotating shaft 21, the radial direction Y of the dispersion cylinder 10 is parallel to the radial direction Y of the rotating shaft 21, and the circumferential direction Z of the dispersion cylinder 10 is parallel to the circumferential direction Z of the rotating shaft 21.

[0031] The dispersion device 100 is used to disperse the slurry. The slurry can be a battery material. Battery materials include a variety of materials, such as, but not limited to, positive electrode materials, negative electrode materials, conductive agents, etc. In this embodiment, the slurry is illustrated as a battery material; it is understood that the slurry can also be other materials, such as food materials, pharmaceutical materials, fertilizer materials, building materials, etc., and the type of slurry is not limited here. The refrigerant can be, but is not limited to, at least one of water, gas, oil, etc.

[0032] It should be noted that, Figure 1 The purpose is only to schematically describe the arrangement between the dispersion cylinder 10 and the rotor 20, and not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 The diagram only illustrates the structure of the dispersing device 100 in this embodiment and does not constitute a specific limitation on the dispersing device 100. In other embodiments of this invention, the dispersing device 100 may include more or fewer components than shown in the diagram, or combine certain components, or use different components. For example, the dispersing device 100 may also include, but is not limited to, a temperature detector and a drive mechanism. Specifically, the temperature detector is used to detect the temperature of the slurry inside the dispersing cylinder 10. The drive mechanism is used to drive the rotor 20 to rotate.

[0033] In this embodiment, for example, the degassing cylinder 22 includes a guide plate 221 and a degassing cylinder body 222. The guide plate 221 is connected to one end of the degassing cylinder body 222 near the inlet 102 and forms a guide channel 201 with the inner bottom wall of the dispersion cylinder 10. The guide channel 201 communicates with the gap D and the inlet 102. Thus, the guide plate 221 can guide the slurry flowing in from the inlet 102 to pass through the degassing cylinder body 222 for degassing, meeting the coating requirements of the slurry. The guide plate 221 is configured as a solid structure and seals the bottom of the degassing cylinder body 222, thereby preventing the slurry from directly passing through the guide plate 221 into the inner cavity of the degassing cylinder 22, which would cause some slurry to not pass through the degassing cylinder body 222 for degassing.

[0034] Specifically, the feed inlet 102 is located at the center of the bottom wall of the dispersion cylinder 10, so that the slurry flowing out of the feed inlet 102 can flow evenly towards the gap D between the degassing cylinder 22 and the dispersion cylinder 10 under the guidance of the guide plate 221, improving the smoothness and stability of the slurry flow channel. Of course, in some embodiments, the feed inlet 102 can also be located near the center of the bottom wall of the dispersion cylinder 10. In other embodiments, the number of feed inlets 102 is set to multiple. Multiple feed inlets 102 can be evenly distributed at other positions on the bottom wall of the dispersion cylinder 10 outside the center. The number and location of the feed inlets 102 are not specifically limited in this embodiment of the invention.

[0035] In some embodiments, the degassing cylinder 222 is provided with a plurality of degassing structures 2201. Each degassing structure 2201 includes at least one of a degassing hole, a degassing groove, and a degassing protrusion. The plurality of degassing structures 2201 are spaced apart in the circumferential direction Z of the dispersion cylinder 10. Therefore, by providing a plurality of degassing structures 2201 spaced apart in the circumferential direction Z of the dispersion cylinder 10, the slurry is promoted to be sufficiently and uniformly dispersed within the dispersion chamber 101, thereby improving the degassing efficiency and effect of the slurry, and enhancing the consistency of the slurry. On the other hand, as the degassing cylinder 222 rotates with the rotating shaft 21, the shear force on the outer wall of the degassing cylinder 222 differs from that at the corresponding positions of the degassing structures 2201, resulting in uneven stress on the bubbles. This disrupts the surface balance of the bubbles, causing them to rupture, thereby improving the degassing effect of the slurry.

[0036] For example, in this embodiment, the debubbling hole is circular in shape. In some embodiments, the shape of the debubbling hole may be, but is not limited to, elliptical, racetrack-shaped, square, polygonal, etc. The shape of the debubbling groove may be circular, elliptical, square, polygonal, elongated, wavy, spiral, etc. The shape of the debubbling hole or the shape of the debubbling groove can be set according to the actual situation, and this embodiment of the utility model does not make specific limitations.

[0037] It should be noted that a degassing hole refers to a structure that penetrates the outer and inner walls of the degassing cylinder 222 in the radial direction Y of the dispersion cylinder 10. A degassing groove refers to a structure that penetrates the outer and inner walls of the degassing cylinder 222 in the radial direction Y of the dispersion cylinder 10, as well as the top or bottom wall of the degassing cylinder 222 in the axial direction X of the dispersion cylinder 10; alternatively, a degassing groove can also refer to a degassing hole, which is a structure that penetrates the outer wall of the degassing cylinder 222 in the radial direction Y of the dispersion cylinder 10. Understandably, a degassing hole or degassing groove can serve alone as a shearing channel connecting the gap D and the inner cavity of the degassing cylinder 222. Of course, in some embodiments, the degassing groove may not serve as a shearing channel between the connecting gap D and the inner cavity of the degassing chamber 2202. That is, the dispersion cylinder 10 needs to be additionally provided with a shearing channel between the connecting gap D and the inner cavity of the degassing cylinder 222 so that the slurry can be sheared and dispersed under the action of the centrifugal force of the degassing cylinder 22, thereby improving the dispersion effect of the slurry, improving the quality of the slurry, and meeting the coating requirements of the slurry.

[0038] In this embodiment, for example, the multiple degassing structures 2201 are configured as degassing holes. Each degassing hole individually serves as a shearing channel connecting the gap D and the inner cavity of the degassing cylinder 222. In some embodiments, the dispersing cylinder 10 is additionally provided with shearing channels connecting the gap D and the inner cavity of the degassing cylinder 222. The outer wall of the degassing cylinder 222 may also be provided with at least one of degassing protrusions and degassing grooves. This results in uneven stress on the bubbles as the degassing cylinder 222 rotates with the rotating shaft 21, causing the bubbles to break due to different shear forces at corresponding positions on the outer wall of the degassing cylinder 222 and the degassing protrusions and grooves. This, in turn, disrupts the surface balance of the bubbles and causes them to rupture, thereby improving the degassing effect of the slurry. In other embodiments, the dispersing cylinder 10 is provided with at least two of degassing holes, degassing protrusions, and degassing grooves; this embodiment of the present invention does not specifically limit the specific details.

[0039] In some embodiments, the degassing cylinder 22 further includes a degassing cover plate 223. The degassing cover plate 223 is connected to the end of the degassing cylinder 222 away from the feed inlet 102, and the rotating shaft 21 is fixedly connected to the guide plate 221 and / or the degassing cover plate 223. Thus, on the one hand, by connecting the rotating shaft 21 to at least one of the diversion plate 221 and the degassing cover plate 223, the effective degassing area of ​​the degassing cylinder 222 is increased, thereby improving the degassing efficiency; on the other hand, by connecting the rotating shaft 21 to the diversion plate 221 and the degassing cover plate 223, the diversion plate 221 and the degassing cover plate 223 form a symmetrical support structure, which makes the force on the degassing cylinder 22 more uniform when rotating at high speed, reducing vibration or sway, making it suitable for high-speed degassing, and the weight of the slurry is directly transmitted to the diversion plate 221 and the degassing cover plate 223 through the rotating shaft 21, avoiding the degassing cylinder 222 from bearing excessive bending moment, the load distribution of the degassing cylinder 22 is reasonable, and the service life is extended.

[0040] The degassing chamber 2202 is formed by connecting the flow guide plate 221, the degassing cylinder 222, and the degassing cover plate 223. The degassing cover plate 223 is provided with at least one through hole 2203 communicating with the degassing chamber 2202 and the dispersion chamber 101. The dispersion cylinder 10 is also provided with a suction port 104 communicating with the dispersion chamber 101. The suction port 104 is used to communicate with the vacuum equipment 30. Thus, the degassing cylinder 22 is used in conjunction with the vacuum equipment 30. On the one hand, under the action of centrifugal force, the bubbles in the slurry migrate to the surface of the slurry. In a vacuum environment, the surface tension of the slurry is reduced, making it easier for the bubbles to float or migrate to the surface and escape, shortening the degassing time and improving the degassing effect and efficiency. On the other hand, the vacuum environment can effectively remove tiny bubbles that are difficult to handle by traditional methods, improving the density of the slurry.

[0041] In some embodiments, a suction port 104 is provided at the top of the dispersion cylinder 10. The suction port 104 is located near at least one through hole 2203 in the radial direction Y of the dispersion cylinder 10. Thus, the suction port 104, which is connected to the vacuum device 30, is located at the top of the dispersion cylinder 10. On the one hand, since bubbles naturally migrate upward in the slurry due to buoyancy, the vacuum device 30 can directly capture the floating bubbles, reduce the escape path of the bubbles, and improve the degassing efficiency. On the other hand, the vacuum suction at the top of the vacuum device 30 will create a uniform negative pressure environment in the dispersion cylinder 10, avoiding uneven slurry turbulence caused by local low pressure. Furthermore, the vacuum suction at the top of the vacuum device 30 can ensure that after the bubbles move towards the inner wall of the dispersion cylinder 10 under the centrifugal force of the defoaming cylinder, they can still converge upward to the suction port 104. Moreover, the suction port 104 is located near the through hole 2203 to shorten the flow path of the gas drawn by the vacuum device 30 and improve the suction efficiency.

[0042] In this embodiment, the suction port 104 is located near the rotating shaft 21, thereby shortening the distance between the suction port 104 and the through hole 2203 and improving the exhaust effect. Of course, in some embodiments, the suction port 104 can also be located at other positions of the dispersion cylinder 10 away from the rotating shaft 21, and this utility model embodiment does not make specific limitations. The suction port 104 can be located on the top wall of the dispersion cylinder 10 in the axial direction X; or, it can also be located on the side wall of the top of the dispersion cylinder 10 in the axial direction X.

[0043] In this embodiment, the degassing cover plate 223 is provided with multiple through holes 2203. The multiple through holes 2203 are spaced apart around the rotation axis P of the rotating shaft 21, that is, the multiple through holes 2203 are spaced apart along the circumferential direction Z of the dispersion cylinder 10. Therefore, the arrangement of multiple through holes 2203 can improve the gas discharge efficiency in the degassing chamber 2202 and improve the exhaust effect of the dispersion cylinder 10. Of course, in some embodiments, the degassing cover plate 223 may also be provided with a single through hole 2203.

[0044] It should be noted that the number and location of the suction port 104 and the through hole 2203 can be set according to the actual situation, and this utility model embodiment does not make specific limitations.

[0045] In some embodiments, the outlet 103 is positioned at a higher height in the axial direction X of the dispersion cylinder 10 than the suction port 104 is in the axial direction X of the dispersion cylinder 10. Therefore, by setting the outlet 103 at a higher height in the axial direction X of the dispersion cylinder 10 than the suction port 104 is in the axial direction X of the dispersion cylinder 10, slurry or foam is prevented from being sucked into the vacuum lines of the vacuum equipment 30, reducing the risk of contamination of the vacuum equipment 30.

[0046] In some embodiments, the defoaming cover plate 223 includes a connecting portion 2231 and a stop portion 2232. The connecting portion 2231 is connected to the rotating shaft 21, and the stop portion 2232 is connected between the connecting portion 2231 and the defoaming cylinder 222. The stop portion 2232 is inclined relative to the connecting portion 2231 and converges towards the rotation axis P of the rotating shaft 21 from the guide plate 221 to the defoaming cover plate 223. Thus, on the one hand, the stop portion 2232 is inclined relative to the connecting portion 2231, so that the slurry or foam is not easily sucked into the vacuum pipeline due to gravity, reducing the risk of contamination of the vacuum equipment 30; on the other hand, the stop portion 2232 can prevent the slurry from flowing back into the defoaming chamber, improving the defoaming effect of the slurry and reducing the space occupation rate of the defoaming cylinder 22 in the dispersion chamber 101.

[0047] For example, the stop portion 2232 is configured as a frustum-shaped structure. Specifically, the area of ​​the outer contour of the radial cross-section of the stop portion 2232 along the radial direction Y of the dispersion cylinder 10 gradually decreases from the guide plate 221 to the defoaming cover plate 223. Of course, in some embodiments, the stop portion 2232 may also extend along the radial direction Y of the dispersion cylinder 10.

[0048] In some embodiments, the dispersion device 100 further includes a gas treatment module 40, which is connected to the suction port 104. This reduces the risk of air bubbles being generated in the slurry during the slurry preparation process, thereby improving the slurry density and meeting the coating requirements.

[0049] The gas processing module 40 is configured as a hydrogen combustion module; or, it is configured as a hydrogen collection module. Thus, hydrogen and oxygen can be converted into water vapor after combustion; or specific gases within the dispersion chamber 101 can be collected and separated, thereby reducing the risk of bubble formation during slurry preparation and improving slurry density to meet coating requirements.

[0050] In some embodiments, the height of the discharge port 103 in the axial direction X of the dispersion cylinder 10 is higher than or equal to the height of the defoaming cylinder 222 in the axial direction X of the dispersion cylinder 10. This avoids the problem of insufficiently broken bubbles being discharged directly through the discharge port, and also prevents bubbles from expanding again due to pressure changes during discharge. By setting the height of the discharge port higher than the height of the defoaming cylinder 22, this invention extends the residence time of foam in the defoaming cylinder, thereby improving the defoaming effect. Specifically, the height of the discharge port 103 in the axial direction X of the dispersion cylinder 10 is a first height H1, and the maximum height of the defoaming holes on the defoaming cylinder 222 in the axial direction X of the dispersion cylinder 10 is a second height H2, wherein the first height H1 is greater than the second height H2.

[0051] In some embodiments, the dispersing device 100 further includes a feed pump 50, a discharge pump 60, and a controller 70. The feed pump 50 is connected to the inlet 102, and the discharge pump 60 is connected to the outlet 103. The controller 70 is used to determine the degassing time of the dispersing device 100 based on the flow rates of the feed pump 50 and / or the discharge pump 60. Thus, by controlling the degassing time through the linkage of the feed pump 50 and the discharge pump 60, the degassing efficiency and degassing effect of the dispersing device 100 are improved.

[0052] In some embodiments, the dispersion device 100 further includes a level detector 80. The level detector 80 is installed in the dispersion cylinder 10 and is used to detect whether the slurry level in the dispersion cylinder 10 has reached a preset height. The controller 70 is also electrically connected to the level detector 80 and is used to control the discharge pump 60 to start operating after the level detector 80 detects that the slurry level in the dispersion cylinder 10 has reached the preset height. Thus, on the one hand, by controlling the discharge pump 60 to start operating after the level detector 80 detects that the slurry level in the dispersion cylinder 10 has reached the preset height, energy consumption of the discharge pump 60 is saved, the problem of the discharge pump 60 running dry is avoided, and the service life of the discharge pump 60 is extended.

[0053] For example, in this embodiment, the level detector 80 is installed on the top wall of the dispersion cylinder 10. Therefore, by installing the level detector 80 on the top of the dispersion cylinder 10, the risk of contamination of the level detector 80 by the slurry is reduced, and the detection accuracy of the level detector 80 is improved. Of course, in some embodiments, the level detector 80 may also be installed on the bottom wall or side wall of the dispersion cylinder 10.

[0054] The level detector 80 can be configured as a contact detector or a non-contact detector. The level detector 80 can be, but is not limited to, a float-type level gauge, a hydrostatic level gauge, a capacitive level gauge, an ultrasonic level gauge, or an electrode-type level switch.

[0055] The working process of the dispersion device 100 includes the following steps. The slurry flows into the dispersion chamber 101 from the inlet 102 according to the pre-set flow rate of the feed pump 50. The vacuum device 30 is started, and the rotating shaft 21 is driven to rotate according to a pre-set value. At this time, under centrifugal force, a thin film structure is formed at the gap D between the outer wall of the degassing cylinder 22 and the inner wall of the dispersion cylinder 10. The slurry undergoes degassing and shearing operations under the action of the degassing holes in the degassing cylinder 22. After the slurry level reaches a preset height, the controller 70 controls the start of the discharge pump 60 and determines the degassing time of the dispersion device 100 based on the flow rates of the feed pump 50 and / or the discharge pump 60, thereby enabling intelligent degassing operation of the dispersion device 100 and continuous degassing of the slurry.

[0056] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A dispersing device (100), characterized in that, include: A dispersion cylinder (10) is provided with a dispersion chamber (101), a feed inlet (102) and a discharge outlet (103). The dispersion chamber (101) is connected to the feed inlet (102) and the discharge outlet (103). The feed inlet (102) is located at the bottom of the dispersion cylinder (10). The rotor (20) includes a rotating shaft (21) and a degassing cylinder (22). The degassing cylinder (22) is disposed in the dispersion chamber (101) and fixedly connected to the rotating shaft (21). The gap (D) between the outer wall of the degassing cylinder (22) and the inner wall of the dispersion cylinder (10) in the radial direction (Y) of the dispersion cylinder (10) is 1mm-10mm.

2. The dispersing device (100) as described in claim 1, characterized in that, The degassing cylinder (22) includes a flow guide plate (221) and a degassing cylinder body (222). The flow guide plate (221) is connected to one end of the degassing cylinder body (222) near the feed inlet (102) and forms a flow guide channel (201) with the inner bottom wall of the dispersion cylinder (10). The flow guide channel (201) is connected to the gap (D) and the feed inlet (102).

3. The dispersing device (100) as described in claim 2, characterized in that, The degassing cylinder (222) is provided with a plurality of degassing structures (2201), which are spaced apart in the circumferential direction (Z) of the dispersion cylinder (10). Each degassing structure (2201) includes at least one of a degassing hole, a degassing groove, and a degassing protrusion.

4. The dispersing device (100) as described in claim 2, characterized in that, The degassing cylinder (22) also includes a degassing cover plate (223), which is connected to the end of the degassing cylinder body (222) away from the feed inlet (102), and the rotating shaft (21) is fixedly connected to the guide plate (221) and / or the degassing cover plate (223).

5. The dispersing device (100) as described in claim 4, characterized in that, The flow guide plate (221), the degassing cylinder (222) and the degassing cover plate (223) are connected to form a degassing chamber (2202). The degassing cover plate (223) is provided with at least one through hole (2203) that communicates with the degassing chamber (2202) and the dispersion chamber (101). The dispersion cylinder (10) is also provided with a suction port (104) that communicates with the dispersion chamber (101). The suction port (104) is used to communicate with a vacuum device (30).

6. The dispersing device (100) as described in claim 5, characterized in that, The height of the discharge port (103) in the axial direction (X) of the dispersion cylinder (10) is higher than the height of the suction port (104) in the axial direction (X) of the dispersion cylinder (10).

7. The dispersing device (100) as described in claim 5, characterized in that, The dispersion device (100) further includes a gas processing module (40), which is connected to the suction port (104). The gas processing module (40) is configured as a hydrogen combustion module or as a hydrogen collection module.

8. The dispersing device (100) as described in claim 5, characterized in that, The top of the dispersion cylinder (10) is provided with the suction port (104), which is located near at least one of the through holes (2203) in the radial direction (Y) of the dispersion cylinder (10).

9. The dispersing device (100) as claimed in claim 4, characterized in that, The degassing cover plate (223) includes a connecting part (2231) and a stop part (2232). The connecting part (2231) is connected to the rotating shaft (21). The stop part (2232) is connected between the connecting part (2231) and the degassing cylinder (222). The stop part (2232) is inclined relative to the connecting part (2231) and converges towards the rotation axis (P) of the rotating shaft (21) from the direction from the guide plate (221) to the degassing cover plate (223).

10. The dispersing device (100) as claimed in claim 1, characterized in that, The dispersing device (100) further includes a feed pump (50), a discharge pump (60) and a controller (70). The feed pump (50) is connected to the feed inlet (102), the discharge pump (60) is connected to the discharge outlet (103), and the controller (70) is used to determine the degassing time of the dispersing device (100) based on the flow rate of the feed pump (50) and / or the discharge pump (60).

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