Mixing device and mixing paddle thereof

Abstract

The present invention provides a mixing device and a mixing paddle thereof, which can effectively improve the mixing and kneading effect on the slurry and change the quality of the slurry.SOLUTION: The mixing paddle 113 includes a dispersion disk 116 having a central portion and a plurality of paddle block portions provided around the central portion, a plurality of dispersion columns 117 provided in the paddle block portions, and a guide cone 118 provided above the central portion and having a first discharge surface. The central portion is centrosymmetric with respect to the central axis. The paddle blocking portion is configured to have a forward guide surface and a reverse guide surface. A guideway is formed between the forward guide surface of one paddle block and the reverse guide surface of the other paddle block. Since the guide passage extends obliquely in the axial direction and is open in the radial direction, a part of the slurry is guided to the bottom of the dispersing disk when the dispersing disk is rotated.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to the field of mixing devices, and in particular to mixing devices and mixing paddles thereof. [Background technology]

[0002] In the fields of new energy batteries, food, medicine, chemicals, etc., it is often necessary to mix powder particles with liquid to form a slurry. Mixing paddles are often used to obtain a slurry with low to medium solid content and low to medium viscosity. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Chinese Utility Model No. 209108983 [Patent Document 2] Chinese Utility Model No. 215539921 [Patent Document 3] Chinese Utility Model No. 213590175 [Patent Document 4] Chinese Utility Model No. 208990659 Summary of the Invention [Problem to be solved by the invention]

[0004] So far, the dispersion disks of the mixing paddles are unable to fill the gaps between the paddles, which often results in a large amount of air bubbles, which must be removed by vacuum or other means to reduce the mixing quality of the slurry.

[0005] This Summary is intended to introduce in a simplified form concepts that are further described below in the Detailed Description. It is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to be used to limit the scope of the claimed technical solution.

[0006] Some embodiments of the present invention propose a mixing device and its mixing paddle to solve the technical problems mentioned in the background section above. [Means for solving the problem]

[0007] As a first aspect of the present invention, some embodiments of the present invention provide a mixing paddle, which includes a dispersion disk having a central portion and a plurality of paddle block portions arranged around the central portion, a plurality of dispersion columns arranged in the paddle block portions, and a guide cone arranged above the central portion and having a first discharge surface.

[0008] Furthermore, the central portion is centrosymmetrical with respect to the central axis. The paddle block portions are configured to have a forward guide surface and a reverse guide surface. A guide passage is formed between the forward guide surface of one paddle block portion and the reverse guide surface of the other paddle block portion. The guide passage extends obliquely in the axial direction and is open in the radial direction, so that when the dispersion disk is rotated, a portion of the slurry is guided to the bottom of the dispersion disk. The first discharge surface is configured at least partially as a part of a conical surface.

[0009] Furthermore, the main guide surface is inclined so as to intersect with the central axis in the radial direction, and is configured as a streamlined curved surface.

[0010] Furthermore, the reverse guide surface is inclined so as to intersect with the radial direction of the central axis.

[0011] Furthermore, the reverse guide surface is configured as a streamlined curved surface.

[0012] Furthermore, the projected area of ​​the forward guide surface on a projection plane perpendicular to the central axis is equal to or less than the projected area of ​​the reverse guide surface on a projection plane perpendicular to the central axis.

[0013] Furthermore, the upper portion of the paddle block portion is configured to have a curved surface.The upper portion of the paddle block portion is configured to have a curved surface.

[0014] Furthermore, the dispersion column includes a column top provided above the paddle block portion and a column bottom provided below the paddle block portion, and the dispersion column has at least a cylindrical surface arranged parallel to the central axis.

[0015] As a second aspect of the present invention, some embodiments of the present invention include a mixing tank that forms a mixing space, and any of the mixing paddles described above that are disposed at the bottom of the mixing space of the mixing tank.

[0016] Furthermore, the mixing device includes a baffle plate for stopping the circumferential flow of the slurry driven by the mixing paddles at the inner wall of the mixing tank.

[0017] The present invention provides a mixing device and a mixing paddle thereof that can effectively improve the mixing and kneading effect on a slurry and change the quality of the slurry.

[0018] In order to make other features, objects and advantages of the present invention more clear, some of the accompanying drawings are added to the present invention. The drawings of the schematic embodiments of the present invention and their illustrations are used to explain the present invention and are not to be construed as an inappropriate limitation of the present invention.

[0019] Additionally, throughout the accompanying drawings, the same or similar designations refer to the same or similar elements. As schematic diagrams, the elements and components of the accompanying drawings are not necessarily drawn to scale. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a schematic diagram of an overall mixing device according to one embodiment of the present invention. [Figure 2] FIG. 2 is a schematic diagram of the internal structure of the mixing device shown in FIG. [Figure 3] FIG. 3 is a schematic diagram of a cross-sectional structure of the supply section of the mixing device shown in FIG. [Figure 4]FIG. 4 is a schematic diagram of a partial structure of the supply section in the mixing device shown in FIG. [Figure 5] FIG. 5 is a schematic structural diagram of a supply paddle member in the mixing device shown in FIG. [Figure 6] FIG. 6 is a schematic structural diagram of the wetting paddle in the mixing device shown in FIG. [Figure 7] FIG. 7 is a schematic diagram of the combined structure of the flange pipe, the wetting column, and the wetting ring member in the mixing device shown in FIG. [Figure 8] FIG. 8 is a schematic diagram of the flange pipes and their internal structure combined in the mixing device shown in FIG. [Figure 9] FIG. 9 is a structural schematic diagram of the synchronously rotating parts such as the dispersion disk of the mixing device shown in FIG. [Figure 10] FIG. 10 is a schematic diagram of the overall structure of the dispersion disk, dispersion column and guide cone of the mixer shown in FIG. [Figure 11] FIG. 11 is a schematic plan view of the dispersion disk of the mixing device shown in FIG. [Figure 12] FIG. 12 is a schematic diagram of the entire structure of the mixing device shown in FIG. 1 after cutting the dispersion disk, dispersion column and guide cone. [Figure 13] FIG. 13 is a schematic diagram of the flow direction of the slurry inside the mixing tank of the mixer shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0021] Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although the accompanying drawings show a number of embodiments, it should be understood that the present disclosure can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the accompanying drawings and embodiments of the present disclosure are intended to be illustrative only and are not intended to limit the scope of protection of the present disclosure.

[0022] Moreover, for purposes of explanation, only portions of the accompanying drawings relevant to the application are shown.The embodiments and features in the present disclosure can be combined with each other without contradiction.

[0023] In this description, terms such as "center," "top," "bottom," "left," "right," "vertical," "horizontal," "inside," "outside," "right," "vertical," "horizontal," "inside," "outside," and the like indicate orientations or positional relationships. The orientations or positional relationships indicated by "left," "right," "vertical," "horizontal," "inside," "outside," and the like are based on the orientations or positional relationships shown in the accompanying drawings or the orientations or positional relationships in which the product of the present invention is customarily disposed when used. These terms are intended solely to facilitate and simplify the description of the present invention and are not intended to indicate or imply that the devices or elements referred to must be in a particular orientation, configured, or operated in a particular orientation, and therefore should not be construed as limitations on the present invention. Furthermore, terms such as "first," "second," and the like appearing in the present specification are used solely for the purpose of distinguishing between the present specification and should not be construed as indicating or implying relative importance.

[0024] Furthermore, in this description, unless expressly specified and limited, the terms "setup," "install," "connect," and "connection" are used generically. For example, a "connection" may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, a connection through an intermediate medium, or an internal connection between two elements. Those skilled in the art will understand the specific meaning of the above terms in the present invention.

[0025] References to "one" and "one or more" herein are exemplary and not limiting, and should be understood by those skilled in the art as "one or more" unless the context clearly indicates otherwise.

[0026] The present invention will be described in detail below in conjunction with embodiments with reference to the accompanying drawings.

[0027] As shown in Figures 1 to 3, a mixing device 100 of the present invention suitable for high solid content slurries comprises a mixing tank 101, a supply pipe 102, a mixing paddle 113, a mixing spindle 103, and a mixing motor (not shown).

[0028] Specifically, the mixing tank 101 has a mixing space 101a, a powder inlet 102a connected to the mixing space 101a, a liquid inlet 102b, and a supply pipe 102 having a supply path 102c formed therein, and is configured so that the powder and liquid are supplied to the mixing space 101a via the supply path 102c.

[0029] Specifically, the mixing paddle 113 is rotatably mounted within the mixing space 101a to uniformly stir and mix the powder and liquid mixture within the mixing space 101a. The mixing spindle 103 extends at least partially within the mixing space 101a and forms a rotation-preventing connection with the mixing paddle 113. The mixing spindle 103 is driven (directly or indirectly) by the mixing motor to rotate about its central axis, thereby rotating the mixing paddle 113 and causing high-speed mixing of the powder and liquid mixture within the mixing space 101a. The slurry formed after uniform mixing is discharged from the discharge port 1011d. Note that the discharge port 1011d is closed during mixing.

[0030] In reality, the powder that enters the supply path 102c tends to aggregate, which affects the passage through the supply path 102c, and if the powder is directly supplied to the mixing space 101a, this may have a significant effect on the dispersion efficiency.

[0031] As a preferred embodiment, as shown in FIGS. 1 to 4, a mixing apparatus 100 of the present invention suitable for high solids slurries includes a feed paddle member 104, a feed spindle 105, a feed motor 106, and a reducer 114. The feed spindle 105 extends at least partially within the feed channel 102c. The feed motor 106 drives the feed spindle 105 within the feed channel 102c in cooperation with the reducer 114. The feed paddle member 104 is rotatably disposed within the feed channel 102c and attached to the feed spindle 105. By rotating together with the feed spindle 105, the feed paddle member 104 mixes and disintegrates powder that has entered the feed channel 102c through at least the powder inlet 102a.

[0032] In a preferred embodiment, as shown in Figures 2 and 4, the supply pipe 102 is formed with multiple powder inlets 102a. These powder inlets 102a are arranged at different circumferential positions to allow the same or different types of powder to be introduced simultaneously. The supply paddle member 104 effectively crushes and mixes the introduced powder.

[0033] As a specific embodiment, as shown in FIG. 5 , the supply paddle member 104 is composed of a sleeve portion 1041, a spiral portion 1042, and a connecting portion 1043. The sleeve portion 1041 is fitted onto the supply spindle 105 and connected to the supply spindle 105 via a key, and is fitted onto the supply spindle 105 while being prevented from rotating. The supply spindle 105 is formed with a step portion 1051, which limits the mounting position of the sleeve portion 1041 on the supply spindle 105. The spiral portion 1042 is configured to extend substantially along a spiral. A number of connecting portions 1043 connect the spiral portion 1042 and the sleeve portion 1041 in a spiral shape centered on the sleeve portion 1041. As the connecting portions 1043 rotate, they slice the powder in the supply channel 102c and mix the powder uniformly. More specifically, the spiral portion 1042 and the connecting portion 1043 are uniformly arranged in groups around the central axis to improve slitting efficiency. The spiral portion 1042 and the connecting portion 1043 are designed with a streamlined structure, with a rounded, smooth appearance, which reduces resistance to the powder, enabling rapid and uniform mixing of the powder in a small space and reducing accumulation of powder in the supply channel 102c.

[0034] In the preparation of high-solids, high-viscosity slurries, the particle size of the powder becomes smaller and the specific surface area becomes larger, which causes more gas to be adsorbed on the surface, making it difficult for the powder to penetrate into the liquid, making uniform mixing and dispersion difficult and prone to problems such as peeling, aggregation, and precipitation. If the powder is directly added to the mixing space 101a, the mixing effect is poor and it takes a long time.

[0035] In a preferred embodiment, as shown in FIGS. 2 to 8, the mixer 100 of the present invention, suitable for high solids slurries, further comprises a wetting tube 107, a plurality of wetting paddles 108, and a plurality of wetting columns 109.

[0036] As shown in FIGS. 1 and 2, the wetting pipe 107 has a wetting path 107a formed therein that communicates with the supply path 102c, and the wetting path 107a is located between the supply path 102c and the mixing space 101a.

[0037] 1, the liquid inlet 102b is provided at a different axial position from the powder inlet 102a, and the liquid inlet 102b is provided in the supply channel 102c close to the wetting channel 107a, so that the liquid can quickly enter the wetting channel 107a after being supplied from the liquid inlet 102b.

[0038] As shown in Figures 2 to 4, the wetting paddles 108 are provided in the wetting passage 107a so as to rotate about the central axis. These wetting paddles 108 are arranged at different axial positions so as to mix the powder and liquid mixture in the wetting passage 107a while rotating. Note that the axial, radial, and circumferential directions in the present invention are relative positions based on the central axis.

[0039] The multiple wetting columns 109 are cylindrical columns extending radially along the central axis and are provided between the two wetting paddles 108. The mixture of powder material and liquid material flowing along the wetting path 107a is divided in the wetting columns 109. Specifically, the multiple wetting columns 109 arranged between the two wetting paddles 108 are provided at different positions in the circumferential direction, and the wetting columns 109 are arranged between the supply spindle 105 and the wetting pipe 107.

[0040] Using the above method, the mixture of powder and liquid material diverted by the multiple infiltration columns 109 under the stirring of the infiltration paddles 108 is fully rotated so that the liquid material is thoroughly mixed with the powder. After continuous mixing by the infiltration paddles 108 and the infiltration columns 109, most of the infiltration can be completed, resulting in high infiltration efficiency.

[0041] Specifically, the gap between the wetting paddle 108 and the wetting column 109 is 3 mm to 5 mm, and the powder and liquid mixture is squeezed between the wetting paddle 108 and the wetting column 109, accelerating the wetting process.

[0042] In a specific embodiment, the wetting paddle 108 includes a connecting shaft portion 1081 and a paddle portion 1082. The connecting shaft portion 1081 fits onto the supply spindle 105 and is coupled to the supply spindle 105 to provide a non-rotational fit therewith. Multiple wetting paddles 108 are inserted sequentially onto the supply spindle 105 until the connecting shaft portion 1081 of one of the wetting paddles 108 is adjacent to the sleeve portion 1041, and an end cap 111 is attached to the end of the supply spindle 105 to fully lock the connecting shaft portion 1081 in position relative to the spindle. The wetting paddle 108 and the supply paddle member 104 are connected to the same supply spindle 105, and by rotating together, the speed at which the powder is fed into the wetting path 107a and the speed at which the mixture is output into the mixing space 101a are approximately equal, thereby avoiding the accumulation of the mixture due to the powder being fed into the wetting path 107a being too fast, or the accumulation of negative pressure spaces and liquids that occur at the junction between the wetting path 107a and the supply path 102c due to the mixture being output at too fast, making it easier to achieve metering control.

[0043] The paddle portions 1082 of the infiltration paddle 108 are arranged symmetrically about the central axis at opposing circumferential positions on the connecting shaft portion 1081. The paddle portions 1082 have paddle surfaces that are inclined so as to intersect with the central axis, and as the infiltration paddle 108 rotates, both an axial force along the central axis and a centrifugal force are applied to the powder and liquid mixture in the infiltration channel 107a. The axial force pushes a portion of the powder and liquid mixture toward the infiltration column 109, and the centrifugal force pushes another portion of the mixture toward the inner wall of the infiltration tube 107.

[0044] Specifically, the gap between the paddle portion 1082 and the inner wall of the infiltration tube 107 is 3 mm to 5 mm, and the mixture of powder and liquid is pushed toward the inner wall of the infiltration tube 107 by centrifugal force and squeezed between the paddle portion 1082 and the infiltration tube 107, further accelerating the infiltration process.

[0045] 6, the paddle surface of the paddle portion 1082 is configured to have at least one curved surface, which reduces resistance when the paddle surface comes into contact with the mixture, allowing the mixture to flow smoothly over the paddle surface and promoting mixing of the mixture. Specifically, the paddle surface of the paddle portion 1082 is divided into a positive paddle surface 1082a and a negative paddle surface 1082b, which are located on both sides of the paddle portion 1082, respectively. The positive paddle surface 1082a applies thrust to the mixture, and the negative paddle surface 1082b divides the mixture flowing through the paddle portion 1082.

[0046] Specifically, the paddle portion 1082 further includes a transition surface 1082c. As shown in the figure, the transition surface 1082c is located between the positive paddle surface 1082a and the negative paddle surface 1082b and intersects the central axis at an angle. In this manner, a portion of the mixture pushed by the positive paddle surface 1082a flows toward the transition surface 1082c near the side of the mixing space 101a, whereby this portion of the mixture is kneaded between the transition surface 1082c and the mixing permeation column. Furthermore, the transition surface 1082c near the side of the supply channel 102c forms an abutment angle 1082d with the positive paddle surface 1082a. The abutment angle 1082d divides the mixture in the wetting channel 107a as the paddle portion 1082 rotates, causing a portion of the mixture to flow along the transition surface 1082c on this side, further promoting mixing of the mixture.

[0047] As shown in Figures 3, 7 and 8, in a preferred embodiment, a number of flange pipes 1071 are sequentially connected to the wetting pipe 107 to form the wetting pipe 107, and the wetting paddle 108 is housed in the space surrounded by the flange pipes 1071. The wetting paddle 108 and the wetting pipe 107 are attached by sequentially attaching them to the supply spindle 105, which makes assembly easy.

[0048] In a preferred embodiment, the mixing device 100 suitable for the high solids slurry of the present invention has a wetting ring member 110. The mixing device 100 is configured to have a ring structure and is installed on the outside of the feed spindle 105. The wetting columns 109 are connected at one end to the wetting pipe 107 and at the other end to the wetting ring member 110, which connects the wetting columns 109 together at the same axial position and improves the robustness of the wetting columns 109.

[0049] As shown in FIG. 1, in a preferred embodiment, the supply pipe 102 has multiple liquid inlets 102b arranged at different circumferential positions, so that the same fluid or different types of fluids can be supplied simultaneously, resulting in uniform fluid input into the wetting pipe in the circumferential direction and improving wetting efficiency.

[0050] 3 and 4, in a preferred embodiment, a supply spindle 105 of a specific length is provided with a bearing housing 112 attached to the supply tube 102. Accordingly, a reducer 114 is attached to the bearing housing 112. The bearing housing 112 defines an interior space for mounting a number of bearings.

[0051] As shown in FIG. 2, when the mixing paddle 113 is operated at high speed to mix a powder and liquid mixture, a lot of heat is generated. If the temperature continues to rise to a certain level, this may lead to denaturation of the mixture. In a preferred embodiment, the mixing tank 101 is formed with a cooling jacket 101b having a cooling chamber 1011a, an inlet port 1011b, and an outlet port 1011c. The cooling chamber 1011a is provided around the mixing space 101a. The inlet port 1011b is a port through which cooling water flows into the cooling chamber 1011a, and the outlet port 1011c is a port through which cooling water flows out of the cooling chamber 1011a. These ports remove excess heat from the mixing space 101a and prevent the temperature from rising and denaturing the slurry. Specifically, the mixing tank 101 consists of an outer tank 1011 and an inner tank 1012, and the cooling jacket 101b is configured between the outer tank 1011 and the inner tank 1012.

[0052] Specifically, the mixing tank 101 comprises an inlet pipe 1013 and an outlet pipe 1014, with an inlet port 1011b provided in the inlet pipe 1013 and an outlet port 1011c provided in the outlet pipe 1014. The inlet pipes 1013 extend radially to a region near the central axis, and extend the residence time of the cooling water supplied from the inlet port 1011b to the cooling chamber 1011a, thereby sufficiently absorbing heat and improving heat dissipation.

[0053] As shown in Figures 9 to 12, in a specific embodiment, the mixing paddle 113 is composed of a dispersion disk 116, a number of dispersion columns 117, and a guide cone 118. The dispersion disk 116 is composed of a central portion 1161 and a number of paddle block portions 1162 provided around the central portion 1161. The central portion 1161 is configured to be centrosymmetrical with respect to the central axis.

[0054] The multiple dispersion columns 117 rotate in synchronization with the paddle block section 1162 and are separately provided on the paddle block section 1162. The guide cone 118 is located above the central section 1161, forming a first discharge surface 1181. This improves the fluidity of the mixture after the slurry above the dispersion disc 116 has been guided and dispersed, improving the flow to the dispersion disc 116.

[0055] The dispersion column 117 is rotated at high speed by the dispersion disk 116, shearing and dispersing the powder and liquid mixture, and sending it flying at high speed toward the inner wall of the inner tank 1012. Because the rotation speed is slow in the intermediate zone located on the side of the dispersion column 117 closer to the central axis, the mixture at the top of the tank space falls to fill the intermediate zone, increasing the fluidity of the mixture in the tank space.

[0056] Dispersion disk 116 is formed with mounting hole 116b for insertion into one end of mixing spindle 103, and has fitting inner surface 116c formed around the dispersion shaft. The part of mixing spindle 103 that is inserted into mounting hole 116b has fitting outer peripheral surface 1031 formed around the spindle shaft, and after being inserted into mounting hole 116b and pressed, fitting outer peripheral surface 1031 and fitting inner surface 116c form an interference fit, causing friction to rotate dispersion disk 116.

[0057] Specifically, the paddle block portion 1162 is configured to have a normal guide surface 1163 and a reverse guide surface 1164. The normal guide surface 1163 and the reverse guide surface 1164 are provided on both sides of the paddle block portion 1162 and are both inclined so as to intersect with the central axis. A guide path 116a is provided between the normal guide surface 1163 of the paddle block portion 1162 and the reverse guide surface 1164 of the paddle block portion 1162. The guide path 116a penetrates the dispersion disk 116 in the axial direction so that at least a portion of the slurry is guided to the bottom of the dispersion disk 116 when the dispersion disk 116 rotates. Specifically, at least a portion of the first discharge surface is configured as part of a conical surface, enhancing the flow guide effect of the first discharge surface.

[0058] In the above system, when the paddle block portion 1162 rotates, the positive guide surface 1163 cuts off a portion of the mixture and pushes it toward the bottom of the tank space, promoting the flow of the mixture, and the negative guide surface 1164 guides the mixture passing through the guide path 116a.

[0059] 10 and 11, in a preferred embodiment, the main guide surface 1163 is inclined so as to intersect with the radial direction of the central axis, and by rotating, a radial force is applied to the mixture flowing through the guide path 116a, throwing the mixture and increasing the fluidity of the mixture. Specifically, the main guide surface 1163 is configured as a streamlined curved surface.

[0060] In a preferred embodiment, the reverse guide surface 1164 is inclined so as to intersect the central axis in the radial direction, and by rotating, guides part of the mixture flowing through the guide path 116a in the radial direction, thereby improving the fluidity of the mixture. Specifically, the reverse guide surface 1164 is configured as a streamlined curved surface. The streamlined curved surface helps to reduce air resistance.

[0061] In a preferred embodiment, the projected area of ​​the forward guide surface 1163 in a projection plane perpendicular to the central axis is equal to or less than the projected area of ​​the reverse guide surface 1164 in a projection plane perpendicular to the central axis. As a result, the slurry is gradually compressed as it enters the guide path 116a and is guided to the bottom of the dispersion disk 116.

[0062] In a preferred embodiment, the top surfaces of the paddle block sections are configured to be curved. The tops of the multiple paddle block sections 1162 are configured to be curved, thereby reducing the resistance of the slurry to the dispersion disk 116.

[0063] 10 and 12, in a preferred embodiment, the dispersion column 117 includes a column top portion 1171 and a column bottom portion 1172, with the column top portion 1171 being provided above the paddle block portion 1162 and the column bottom portion 1172 being provided below the paddle block portion 1162. The dispersion column 117 has at least a cylindrical surface parallel to the central axis.

[0064] As shown in Figures 2 and 13, in a preferred embodiment, the mixing apparatus 100 further includes baffles 115 for stopping the circumferential flow of the slurry driven by the mixing paddles 113 at the inner wall of the mixing tank 101. A number of baffles 115 extending in the axial direction are provided at different positions in the circumferential direction on the inner wall of the mixing tank. The baffles 115 guide a portion of the circumferentially rotating slurry upward, and as a result, the slurry not only rotates circumferentially due to the action of the dispersion disks 116 and dispersion columns 117, but also rolls up and down, improving the mixing effect.

[0065] Optionally, the baffle 115 is fixed or rotatably mounted on the inner wall of the mixing tank, where the rotation setting adjusts the inclination angle of the baffle 115 for different dispersion speeds.

[0066] 9 to 12, the projection of the bottom surface of the dispersion disc 116 onto a plane perpendicular to the dispersion axis is a straight line, and the gap between it and the bottom surface of the inner tank 1012 forms a pinched region. Due to the sudden reduction in space, the mixture is squeezed by the bottom surfaces of the dispersion disc 116 and the inner tank 1012 when it enters the kneading region, improving the kneading effect.

[0067] To ensure passage of the mixture through the guide path 116a, the normal guide surface 1163 and the reverse guide surface 1164 are connected by a connecting surface 1165, and a gap is provided between the normal guide surface 1163 and the reverse guide surface 1164.

[0068] A conical boss 1166 is formed in the central portion 1161. The guide cone 118 is attached to the boss 1166, and a second discharge surface 1166a is formed on the boss 1166. The taper of the second discharge surface 1166a is the same as that of the first discharge surface, allowing the slurry to flow smoothly from the surface of the guide cone 118 to the dispersion disc 116.

[0069] An intersecting flow guide outer edge is provided between the second discharge surface and the upper surface of the dispersion disk 116. An intersecting transition outer edge is provided between the connection surface 1165 and the upper surface of the dispersion disk 116. In this way, at least a portion of the transition outer edge overlaps with the flow guide outer edge, and the slurry flowing into the guide cone 118 is directly guided into the guide path 116a, improving the flow effect.

[0070] The above description is limited to illustrating some preferred embodiments of the present disclosure and the applied technical principles. Those skilled in the art should understand that the scope of the invention related to the embodiments of the present disclosure is not limited to the technical solutions obtained from the specific combinations of the above-mentioned technical features, but also covers other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the above-mentioned inventive concept. For example, the technical solutions are formed by (but are not limited to) replacing the above features with technical features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A dispersion disk including a central portion and a plurality of paddle block portions provided around the central portion, Furthermore, a plurality of dispersion columns provided in the paddle block portion; a guide cone provided on an upper portion of the central portion and having a first discharge surface formed thereon; A mixing paddle characterized by:

2. 2. The mixing paddle of claim 1, The central portion is centrosymmetrical with respect to the central axis, the paddle block portion is configured to have a normal guide surface and a reverse guide surface, a guide path is formed between the normal guide surface of one paddle block portion and the reverse guide surface of the other paddle block portion, the guide path extends obliquely in the axial direction and is open in the radial direction, so that when the dispersion disk is rotated, a part of the slurry is guided to the bottom of the dispersion disk, and at least a part of the first discharge surface is configured as a part of a conical surface. A mixing paddle characterized by:

3. 3. The mixing paddle of claim 2, The positive guide surface is inclined so as to intersect with the central axis in the radial direction and is configured as a streamlined curved surface. A mixing paddle characterized by:

4. 3. The mixing paddle of claim 2, The reverse guide surface is inclined so as to intersect with the radial direction of the central axis. A mixing paddle characterized by:

5. 5. The mixing paddle of claim 4, The reverse guide surface is configured as a streamlined curved surface. A mixing paddle characterized by:

6. 3. The mixing paddle of claim 2, a projected area of ​​the regular guide surface on a projection plane perpendicular to the central axis is equal to or smaller than a projected area of ​​the reverse guide surface on a projection plane perpendicular to the central axis; A mixing paddle characterized by:

7. 2. The mixing paddle of claim 1, The upper part of the paddle block portion is configured as a curved surface, and the upper part of the paddle block portion is configured to be a curved surface. A mixing paddle characterized by:

8. 2. The mixing paddle of claim 1, The dispersion column comprises: a column top portion provided above the paddle block portion; a column bottom portion provided below the paddle block portion; Including, The dispersion column has at least a cylindrical surface arranged parallel to the central axis. A mixing paddle characterized by:

9. A mixing device including a mixing tank forming a mixing space, 9. The mixing paddle according to claim 1, arranged at the bottom of the mixing space of the mixing tank. A mixing device characterized by:

10. 10. The mixing device according to claim 9, A baffle plate is included which is used to stop the circumferential flow of the slurry caused by the mixing paddle at the inner wall of the mixing tank. A mixing device characterized by:

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