CN114984796B

CN114984796B - Stirring device suitable for high-solid-content slurry

Info

Publication number: CN114984796B
Application number: CN202210509580.1A
Authority: CN
Inventors: 李志萍; 郑邵雍; 文旭峰; 卞慧民; 陈积瑜
Original assignee: Zhejiang Hansure Technology Co ltd
Current assignee: Zhejiang Hansure Technology Co ltd
Priority date: 2022-02-28
Filing date: 2022-05-11
Publication date: 2023-05-16
Anticipated expiration: 2042-05-11
Also published as: CN114682149A; CN114682149B; CN114984796A

Abstract

The application discloses a stirring device suitable for high-solid-content slurry, which comprises a stirring tank body and a feeding pipe fitting, wherein a powder inlet, a liquid inlet and a feeding channel communicated with a stirring space are formed in the stirring tank body; a feed spindle, a feed motor; a feed paddle; further comprises: the infiltration pipe fitting is provided with an infiltration channel communicated with the feeding channel; the plurality of soaking paddle parts are rotatably arranged in the soaking channel by taking the central axis as a shaft; the plurality of infiltration column parts are arranged between the two infiltration paddle parts; wherein, infiltration oar spare includes: the connecting shaft part is used for forming rotation-stopping connection with the feeding main shaft; and the paddle part is used for simultaneously applying acting force along the axial direction and the centrifugal direction of the central axis to the mixture of powder and liquid in the infiltration channel when the infiltration paddle rotates. The beneficial point of the application lies in: the stirring device suitable for the high-solid-content slurry is provided, wherein the stirring device is used for pre-infiltrating powder by arranging the infiltrating blade and the infiltrating column part to improve the mixing effect.

Description

Stirring device suitable for high-solid-content slurry

Technical Field

The application relates to the field of stirring devices, in particular to a stirring device suitable for high-solid-content slurry.

Background

In the fields of new energy batteries, foods, medicines, chemical industry and the like, a large number of situations exist in which powder particles and liquid are required to be mixed to prepare slurry, and the slurry with low solid content and low viscosity is prepared by adopting stirring paddles.

In the field of preparation of high-solid-content and high-viscosity slurry, powder materials show a trend of smaller and smaller granularity, the specific surface area is large, a large amount of gas is adsorbed on the surface of the powder materials, so that the powder materials are difficult to infiltrate into liquid materials, if the powder materials and the liquid materials are independently put into a mixing container and are directly mixed by adopting a stirring paddle, the problems of uniform mixing and dispersion, easiness in layering, agglomeration and precipitation and the like are difficult to achieve, the mixing effect is poor, and the time is long.

Disclosure of Invention

The content of the present application is intended to introduce concepts in a simplified form that are further described below in the detailed description. The section of this application is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used to limit the scope of the claimed subject matter.

To solve the technical problem mentioned in the background section above, some embodiments of the present application provide a stirring device suitable for high-solid-content slurry, including: a stirring tank body, which is provided with a stirring space; a feeding pipe fitting, which is provided with a powder inlet, a liquid inlet and a feeding channel communicated with the stirring space; a feed spindle disposed at least partially in the feed channel; the feeding motor is used for driving the feeding main shaft to rotate in the feeding channel of the feeding pipe fitting; a feed paddle member disposed in the feed passage to agitate at least powder entering the feed passage through the powder inlet; wherein the feed paddle is mounted to the feed spindle for rotation therewith; stirring device suitable for high solid content thick liquids still includes: the infiltration pipe fitting is provided with an infiltration channel communicated with the feeding channel; the plurality of soaking paddle parts are rotatably arranged in the soaking channel by taking the central axis as an axis to stir the mixture of powder and liquid in the soaking channel when rotating; a plurality of infiltration columns arranged between the two infiltration paddles so that a mixture of powder and liquid flowing along the infiltration channels is split at the infiltration columns; wherein, infiltration oar spare includes: the connecting shaft part is used for forming rotation-stopping connection with the feeding main shaft; the paddle part is used for simultaneously applying acting force along the axial direction and the centrifugal direction of the central axis to the mixture of powder and liquid in the infiltration channel when the infiltration paddle rotates; wherein, the paddle part is provided with a paddle surface which is obliquely intersected with the central axis.

Further, the feed paddle comprises: the sleeving part is used for forming anti-rotation connection with the feeding main shaft; a spiral portion configured to extend substantially along a spiral line; and the connecting part is used for connecting the spiral part to the sleeving part in a mode of spirally encircling the sleeving part.

Further, the paddle parts of the soaking paddle part are symmetrically arranged relative to the central axis.

Further, the blade surface of the blade portion is configured to have at least one curved surface.

Further, the blade surface of the blade part is divided into a positive blade surface and a reverse blade surface, and the positive blade surface and the reverse blade surface are respectively arranged on two opposite sides of the blade part.

Further, the blade part further includes: the transition surface is connected between the forward paddle surface and the reverse paddle surface; wherein the transition surface obliquely intersects the central axis.

Further, the infiltration column is disposed between the feed spindle and the infiltration pipe.

Further, the infiltration column is configured as a cylinder extending in a radial direction of the central axis.

Further, a stirring device suitable for the high-solid-content slurry comprises: the infiltration ring piece is configured to have a ring structure and is sleeved on the outer side of the feeding main shaft; one end of the infiltration column is connected to the infiltration pipe fitting, and the other end is connected to the infiltration ring.

Further, the infiltration pipe fitting comprises a plurality of flange pipes, and the infiltration paddle part is accommodated in a space surrounded by the flange pipes.

The beneficial effects of this application lie in: the stirring device suitable for the high-solid-content slurry is provided, wherein the stirring device is used for pre-infiltrating powder by arranging the infiltrating blade and the infiltrating column part to improve the mixing effect.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application.

In addition, the same or similar reference numerals denote the same or similar elements throughout the drawings. It should be understood that the figures are schematic and that elements and components are not necessarily drawn to scale.

In the drawings:

FIG. 1 is an overall schematic of a stirring device according to one embodiment of the present application;

FIG. 2 is a schematic view showing the internal structure of the stirring device shown in FIG. 1;

FIG. 3 is a schematic cross-sectional view of a feed portion of the stirring device shown in FIG. 1;

FIG. 4 is a schematic view showing a part of the structure of a feeding portion in the stirring device shown in FIG. 1;

FIG. 5 is a schematic view of the feed paddles in the stirring device shown in FIG. 1;

FIG. 6 is a schematic view of the infiltration paddles of the stirring device of FIG. 1;

FIG. 7 is a schematic view of the stirring apparatus of FIG. 1 after the flange pipe, the infiltration column and the infiltration ring are combined;

FIG. 8 is a schematic view of a combined flanged pipe and its internal structure in the stirring apparatus shown in FIG. 1;

FIG. 9 is a schematic view showing the structure of equivalent rotary members such as a dispersion plate in the stirring device shown in FIG. 1;

FIG. 10 is a schematic view showing the overall structure of a dispersion disk, a dispersion column, and a flow guide cone in the stirring apparatus shown in FIG. 1;

FIG. 11 is a schematic top view of a dispersion disk in the stirring device shown in FIG. 1;

FIG. 12 is a schematic view showing a structure in which the entire structure of a dispersion disk, a dispersion column, and a flow guide cone in the stirring apparatus shown in FIG. 1 is cut;

fig. 13 is a schematic view of the flow direction of slurry in the stirring tank in the stirring device shown in fig. 1.

The meaning of the reference numerals is:

100. a stirring device; 101. a stirring tank body; 101a, stirring space; 101b, cooling the interlayer; 1011a, cooling channels; 1011b, liquid inlet; 1011c, a liquid outlet; 1011d, a discharge hole; 1011. an outer can; 1012. an inner tank; 1013. a liquid inlet pipe; 1014. a liquid outlet pipe; 102. a feed tube; 102a, powder inlet; 102b, a liquid inlet; 102c, a feed channel; 103. a stirring main shaft; 104. a feed paddle; 1041. a sleeving part; 1042. a spiral part; 1043. a connection part; 105. a feed spindle; 1051. a step portion; 106. a feed motor; 107. infiltrating the pipe fitting; 107a, infiltration channels; 1071. a flange pipe; 108. soaking the paddle; 1081. a connecting shaft portion; 1082. a blade portion; 1082a, positive paddle face; 1082b, reverse paddle face; 1082c, transition surface; 1082d, chamfer; 109. infiltrating the column; 110. infiltrating the ring member; 111. an end cap; 112. a bearing seat; 113. stirring paddles; 114. a speed reducer; 115. a spoiler; 116. a dispersion plate; 116a, a diversion channel; 116b, mounting holes; 116c, mating the inner face; 1161. a center portion; 1166. a boss; 1163. a second drainage surface; 1162. a paddle block portion; 1163. a positive flow guide surface; 1164. a reverse flow guiding surface; 1165. a connection surface; 117. a dispersion column; 1171. a column top; 1172. the bottom of the column; 118. a diversion cone; 1181. a first drainage surface; 1031. matched with the outside.

Detailed Description

Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While certain embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It should be understood that the drawings and embodiments of the present disclosure are for illustration purposes only and are not intended to limit the scope of the present disclosure.

It should be noted that, for convenience of description, only the portions relevant to the present application are shown in the drawings. Embodiments of the present disclosure and features of embodiments may be combined with each other without conflict.

In the description of the present application, it should be noted that, if the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship that a product of the application conventionally puts in use, it is merely for convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.

In the description of the present application, it should also be noted that, unless explicitly stated and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. It will be understood by those of ordinary skill in the art that the specific meaning of such terms in this application

It should be noted that references to "one" or "a plurality" in this application are intended to be illustrative rather than limiting, and those of ordinary skill in the art will appreciate that "one or more" is intended to be interpreted as "one or more" unless the context clearly indicates otherwise.

The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1 to 3, a stirring device 100 suitable for high-solid-content slurry of the present application includes a stirring tank 101, a feed pipe 102, a stirring paddle 113, a stirring main shaft 103, and a stirring motor (not shown in the drawings).

Specifically, the agitation tank 101 is configured to have an agitation space 101a, and the feed pipe 102 is formed with a powder inlet 102a, a liquid inlet 102b, and a feed passage 102c communicating with the agitation space 101a, through which powder and liquid are fed into the agitation space 101a.

Specifically, the stirring paddle 113 is rotatably disposed in the stirring space 101a, and is configured to stir a mixture of powder and liquid in the stirring space 101a to mix uniformly, the stirring spindle 103 at least partially extends into the stirring space 101a and is connected with the stirring paddle 113 in a rotation-stopping manner, the stirring spindle 103 rotates about a central axis under the driving of the stirring motor (direct driving or indirect driving), and further drives the stirring paddle 113 to rotate to stir the mixture of powder and liquid in the stirring space 101a at a high speed, the slurry formed after mixing uniformly is output from the discharge port 1011d, and the discharge port 1011d is in a closed state during stirring.

In actual production, the powder entering the feed passage 102c is relatively liable to cause caking phenomenon, which affects the passing ability in the feed passage 102c, and if directly fed into the stirring space 101a, the dispersion efficiency is seriously affected.

As a preferred embodiment, as shown in fig. 1 to 4, the stirring device 100 for high-solid-content slurry of the present application further includes: a feed paddle 104, a feed spindle 105, a feed motor 106, and a speed reducer 114; the feed spindle 105 extends at least partially into the feed channel 102c, the feed motor 106 cooperates with the speed reducer 114 to drive the feed spindle 105 to rotate in the feed channel 102c, the feed paddle 104 is rotatably disposed in the feed channel 102c, and the feed paddle 104 is mounted to the feed spindle 105 to rotate with the feed spindle 105 such that the feed paddle 104 at least agitates the powder entering the feed channel 102c through the powder inlet 102a, dispersing the powder.

As shown in fig. 2 and 4, the feeding pipe 102 is preferably formed with a plurality of powder inlets 102a, and the powder inlets 102a are located at different circumferential positions for simultaneously feeding the same powder or different kinds of powder, and the feeding paddle 104 may break up and uniformly mix the fed powder.

As a specific scheme, as shown in fig. 5, the feeding paddle 104 includes a sleeve portion 1041, a spiral portion 1042, and a connecting portion 1043; the sleeving part 1041 is sleeved on the feeding main shaft 105 and is connected with the feeding main shaft 105 through a key so as to be in anti-rotation fit with the feeding main shaft 105, and the feeding main shaft 105 is provided with a step part 1051 to limit the installation position of the sleeving part 1041 on the feeding main shaft 105; the spiral portion 1042 is configured to extend along a spiral line, and a plurality of connecting portions 1043 are used to connect the spiral portion 1042 to the sleeving portion 1041 in a manner of spirally surrounding the sleeving portion 1041, and when the connecting portions 1043 rotate, the powder in the feeding channel 102c is cut, so that the powder is uniformly mixed. More specifically, the combination of the spiral portion 1042 and the connecting portion 1043 is uniformly provided with a plurality of groups around the central axis, improving the slitting efficiency. The spiral part 1042 and the connecting part 1043 are designed to have streamline structures, the appearance is smooth, the resistance to powder is small, the powder in a small space can be quickly and evenly mixed, and the powder is not easy to accumulate in the feeding channel 102 c.

In the field of preparation of high-solid-content and high-viscosity slurry, powder materials show a trend of smaller and smaller granularity, the specific surface area is large, and a large amount of gas is adsorbed on the surface of the powder materials, so that the powder materials are difficult to infiltrate into liquid materials, and the problems of uniform mixing and dispersion, easiness in layering, agglomeration, precipitation and the like are difficult to achieve, and if the powder materials are directly input into a stirring space 101a, the mixing effect is poor and the time is long.

As a preferred embodiment, as shown in fig. 2 to 8, the stirring device 100 for high-solid-content slurry of the present application further includes: a infiltration pipe 107, a plurality of infiltration paddles 108, and a plurality of infiltration posts 109.

As shown in fig. 6 and 7, the infiltration pipe 107 is formed with an infiltration channel 107a communicating with the feed channel 102c, the infiltration channel 107a being located between the feed channel 102c and the stirring space 101a.

As shown in fig. 1, the liquid inlet 102b is located at a different axial position from the powder inlet 102a, and the liquid inlet 102b is located at a position where the feed passage 102c is close to the infiltration passage 107a, so that the liquid input from the liquid inlet 102b rapidly enters the infiltration passage 107a.

As shown in fig. 6, the infiltration paddles 108 are rotatably disposed in the infiltration channel 107a with the central axis as an axis, and the infiltration paddles 108 are disposed at different axial positions for stirring the mixture of powder and liquid in the infiltration channel 107a during rotation. The axial direction, the radial direction and the circumferential direction of the present application are relative positions with the central axis as a reference.

A number of infiltration columns 109 are arranged between two infiltration paddles 108, and the infiltration columns 109 are configured as cylinders extending in the radial direction of the central axis, such that the mixture of powder and liquid flowing along the infiltration channel 107a is split at the infiltration columns 109, in particular, a number of infiltration paddles 108 located between two infiltration paddles 108 are arranged at different circumferential positions, and the infiltration columns 109 are arranged between the feed spindle 105 and the infiltration pipe 107.

By adopting the scheme, the mixture of powder and liquid is shunted by the plurality of infiltration columns 109 under the stirring of the infiltration paddles 108, so that the mixture is fully turned over to fully mix the liquid with the powder, and most of infiltration can be completed through continuous stirring of the plurality of groups of infiltration paddles 108 and the infiltration columns 109, and the infiltration efficiency is high.

More specifically, the clearance between the infiltration paddles 108 and the infiltration posts 109 is 3mm to 5mm, such that the mixture of powder and liquid is squeezed between the infiltration paddles 108 and the infiltration posts 109, accelerating the infiltration process.

As a more specific scheme, the infiltration paddle 108 includes a shaft portion 1081 and a paddle portion 1082, wherein the shaft portion 1081 is sleeved on the feed spindle 105 and is connected with the feed spindle 105 through a key so as to be in rotation-proof fit with the feed spindle 105; the plurality of soaking paddles 108 are sleeved in the feeding main shaft 105 in sequence, the connecting shaft portion 1081 of one soaking paddle 108 close to the sleeving portion 1041 is abutted against the sleeving portion 1041, and an end cover 111 is connected to the end portion of the feeding main shaft 105 so as to completely fix the relative position of the sleeving portion 1041 and the main shaft. The infiltration paddle 108 and the feed paddle 104 are connected to the same feed spindle 105 so that they rotate in unison, ensuring that the speed of the powder input into the infiltration channel 107a is approximately equal to the speed of the mixture output into the stirring space 101a, avoiding accumulation in the infiltration channel 107a due to too fast powder input, and negative pressure or liquid accumulation at the interface of the infiltration channel 107a and the feed channel 102c due to too fast mixture output, and facilitating metering control.

The paddle part 1082 of the wetting paddle 108 is provided in plurality at the circumferential position of the connecting shaft part 1081 and is symmetrically arranged relative to the central axis; the paddle portion 1082 has a paddle surface that obliquely intersects the central axis, such that the paddle portion 1082 simultaneously applies forces in the axial and centrifugal directions of the central axis to the mixture of powder and liquid in the infiltration passage 107a as the infiltration paddle 108 rotates. The axial force pushes a portion of the mixture of powder and liquid against the infiltration column 109 and the centrifugal force pushes another portion of the mixture against the inner wall of the infiltration tube 107.

More specifically, the gap between the paddle portion 1082 and the inner wall of the infiltration pipe 107 is 3mm to 5mm, so that the mixture of powder and liquid is pushed toward the inner wall of the infiltration pipe 107 by the centrifugal force, and is pressed between the paddle portion 1082 and the infiltration pipe 107, further accelerating the infiltration process.

As a more preferred option, as shown in fig. 6, the blade surface of blade 1082 is configured to have at least one curved surface, reducing drag when the blade surface is in contact with the mixture, allowing the mixture to smoothly flow across the blade surface, accelerating the mixing of the mixture. Specifically, the blade surface of blade 1082 is divided into a forward blade surface 1082a and a reverse blade surface 1082b, and forward blade surface 1082a and reverse blade surface 1082b are provided on opposite sides of blade 1082, respectively, whereby forward blade surface 1082a applies thrust to the mixture and reverse blade surface 1082b drains the mixture flowing through blade 1082.

More specifically, blade portion 1082 also includes a transition face 1082c, with transition face 1082c disposed between the top and bottom of forward face 1082a and reverse face 1082b, as shown, with transition face 1082c obliquely intersecting the central axis; with such a scheme, a part of the mixture pushed by the front paddle face 1082a flows to the transition face 1082c on the side close to the stirring space 101a, so that the part of the mixture is kneaded between the transition face 1082c and the infiltration column to be mixed uniformly; in addition, a chamfer 1082d is formed between the front face 1082a and the transition face 1082c on the side of the feed path 102c, so that the mixture in the infiltration path 107a is divided when the blade 1082 rotates, and a part of the mixture flows along the transition face 1082c on the side, thereby further promoting the mixing of the mixture.

As shown in fig. 3, 7 and 8, as a preferable solution, the infiltration pipe 107 includes a plurality of flange pipes 1071, and these flange pipes 1071 are sequentially connected to form the infiltration pipe 107, and the infiltration paddle 108 is accommodated in a space enclosed by the flange pipes 1071; by adopting the mode, the infiltration paddle 108 and the infiltration pipe fitting 107 are sequentially sleeved on the feeding main shaft 105, so that the installation can be finished, and the assembly is convenient.

As a preferred solution, the stirring device 100 suitable for high-solid-content slurry of the present application includes a soaking ring 110, which is configured to have a ring structure and is sleeved on the outer side of the feed spindle 105, one end of the soaking column 109 is connected to the soaking tube 107, the other end of the soaking column is connected to the soaking ring 110, and the soaking ring 110 connects the soaking columns 109 located at the same axial position into a whole, so as to improve the stability of the soaking column 109.

As shown in fig. 1, as a preferred solution, the feeding pipe 102 is formed with a plurality of liquid inlets 102b, and the liquid inlets 102b are located at different circumferential positions, so that the same liquid or different types of liquid can be fed simultaneously, so that the liquid can be uniformly fed into the infiltration pipe in the circumferential direction, and the infiltration efficiency is improved.

As shown in fig. 3 and 4, as a preferred solution, a partial length of the feed spindle 105 is fitted with a bearing housing 112, which bearing housing 112 is connected to the feed tube 102, and correspondingly, a speed reducer 114 is mounted to the bearing housing 112. The bearing housing 112 is formed with a housing space for mounting a plurality of bearings.

As shown in fig. 2, when the stirring paddle 113 is operated at a high speed to stir the mixture of powder and liquid, a lot of heat is generated, and the mixture is easily denatured by continuously heating to a certain temperature. Preferably, the stirring tank 101 is further formed with a cooling interlayer 101b, and the cooling interlayer 101b is configured to have a cooling cavity 1011a, a liquid inlet 1011b and a liquid outlet 1011c; the cooling cavity 1011a surrounds the stirring space 101a, the liquid inlet 1011b supplies cooling liquid to flow into the cooling cavity 1011a, the liquid outlet 1011c supplies cooling liquid to flow out of the cooling cavity 1011a, and the cooling liquid continuously takes away the excessive heat in the excessive stirring space 101a, so as to prevent the slurry from being denatured due to the temperature rise. Specifically, the agitation tank 101 includes 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.

More specifically, the stirring tank 101 includes a liquid inlet pipe 1013 and a liquid outlet pipe 1014, the liquid inlet pipe 1013 is formed with a liquid inlet 1011b, the liquid inlet pipe 1013 extends radially to a region near the central axis, the residence time of the cooling liquid input from the liquid inlet 1011b to the cooling chamber 1011a is prolonged, and heat is sufficiently absorbed to improve the heat radiation effect.

As shown in fig. 9 to 12, as a specific scheme, the stirring paddle 113 includes a dispersion plate 116, a plurality of dispersion posts 117, and a flow guide cone 118; the dispersion disk 116 is configured to have a central portion 1161 and a plurality of paddle portions 1162 provided at the periphery of the central portion 1161, the central portion 1161 being configured to be centrally symmetrical with respect to one central axis.

The plurality of dispersing columns 117 are respectively arranged on the paddle block part 1162 so as to synchronously rotate along with the dispersing columns 117; the diversion cone 118 is disposed at the top of the central portion 1161 and is formed with a first diversion surface 1181, so as to guide the slurry in the upper space of the dispersion disc 116 to flow more smoothly to the dispersion disc 116, thereby increasing the fluidity of the mixture.

The dispersion plate 116 drives the dispersion post 117 to rotate at a high speed, and the mixture of powder and liquid is forcedly sheared and scattered by the dispersion post 117 and is forcedly thrown to the inner wall of the inner tank 1012 at a high speed; due to the low rotational speed of the intermediate region located on the side of the dispersion post 117 closer to the central axis, the mixture in the upper part of the tank space tends to drop to fill the intermediate region, increasing the fluidity of the mixture in the tank space.

The dispersion plate 116 is formed with a mounting hole 116b into which one end portion of the stirring main shaft 103 is inserted, a fitting inner face 116c is formed around the dispersion axis, a fitting outer face 1031 is formed around the main shaft axis at the portion of the stirring main shaft 103 inserted into the mounting hole 116b, and after the main shaft is inserted into the mounting hole 116b and pressed, the fitting outer face 1031 and the fitting inner face 116c form an interference fit to drive the dispersion plate 116 to rotate by friction force. Further, the dispersion disk 116 is connected to the end of the stirring main shaft 103 by a fastener, and the two are prevented from being separated.

More specifically, the paddle block 1162 is configured with a forward flow-guiding surface 1163 and an inverse flow-guiding surface 1164, the forward flow-guiding surface 1163 and the inverse flow-guiding surface 1164 being disposed on opposite sides of one paddle block 1162 and each obliquely intersecting the central axis; a diversion channel 116a is arranged between the front diversion surface 1163 of one paddle block part 1162 and the reverse diversion surface 1164 of the other paddle block part 1162, and the diversion channel 116a axially penetrates through the dispersion disc 116, so that at least part of slurry is guided to the bottom of the dispersion disc 116 when the dispersion disc 116 rotates; specifically, the guide surface is at least partially configured as a part of the conical surface, and the guide effect of the guide surface is improved.

With the above scheme, when the paddle block 1162 rotates, the front diversion surface 1163 cuts a part of the mixture and pushes the mixture to the bottom of the space in the tank, so that the flow of the mixture is promoted; the reverse flow guide surface 1164 guides the mixture passing through the flow guide channel 116 a.

As shown in fig. 10 to 11, the front guide surface 1163 preferably obliquely intersects the radial direction of the central axis, and when rotating, applies a radial force to the mixture flowing through the guide channel 116a to throw the mixture out, thereby increasing the fluidity of the mixture. Specifically, the front guide surface 1163 is configured as a streamline curved surface.

Preferably, the reverse flow guide surface 1164 is inclined to intersect the radial direction of the central axis, which, when rotated, directs a portion of the mixture flowing through the flow guide channel 116a in a radial direction, increasing the flowability of the mixture. Specifically, the reverse flow guide surface 1164 is configured as a streamline curved surface. The streamlined curvature helps reduce drag.

Preferably, the projected area of the front flow guiding surface 1163 on the projected surface perpendicular to the central axis is smaller than or equal to the projected area of the back flow guiding surface 1164 on the projected surface perpendicular to the central axis. This allows the paddles to enter the guide channels 116a to be gradually compressed towards the bottom of the dispersion plate 116.

Preferably, the top of the paddle block 1162 is configured as an arcuate surface; the top of the paddle portions 1162 are configured on an arcuate surface. This may further reduce the resistance of the slurry to the dispersion plate 116.

As shown in fig. 10 and 12, preferably, the dispersion post 117 includes a post top 1171 and a post bottom 1172; wherein post top 1171 is disposed above paddle 1162 and post bottom 1172 is disposed below paddle 1162; the dispersion post 117 has at least a cylindrical surface disposed parallel to the central axis.

As shown in fig. 2 and 13, the stirring device 100 preferably further includes a spoiler 115 for stopping the circumferential flow of the slurry driven by the stirring paddle 113 at the inner wall of the stirring tank 101. A plurality of spoilers 115 are arranged at circumferential positions with different inner walls of the stirring tank, the spoilers 115 extend along the axial direction, part of slurry rotating in the circumferential direction climbs upwards under the guidance of the spoilers 115 after contacting with the spoilers 115, the slurry is prevented from rotating in the circumferential direction only under the action of the dispersing disc 116 and the dispersing posts 117, the vertical rolling of the slurry is enhanced, and the stirring effect is improved.

Alternatively, the spoiler 115 is fixedly or rotatably provided on the inner wall of the agitator tank. Wherein the rotation arrangement can adjust the inclination angle of the spoiler 115, which is suitable for different dispersion speeds.

As shown in fig. 9 to 12, the projection of the bottom surface of the dispersion disk 116 on the projection plane perpendicular to the dispersion axis is a straight line segment, and the gap between the bottom surface of the dispersion disk 116 and the bottom surface of the inner tank 1012 forms a kneading area; when the mixture enters the kneading area, the space is suddenly reduced, and the mixture is kneaded by the extrusion of the bottom of the dispersion plate 116 and the bottom surface of the inner tank 1012, so that the mixing effect is improved.

The front flow guide surface 1163 is connected with the back flow guide surface 1164 through the connecting surface 1165, so that a certain distance is reserved between the connecting positions of the front flow guide surface 1163 and the back flow guide surface 1164, and the trafficability of the mixture in the flow guide channel 116a is ensured.

The central portion 1161 is formed with a conical boss 1166, the diversion cone 118 is mounted on the boss 1166, and the boss 1166 is formed with a second diversion surface 1163, and the taper of the second diversion surface 1163 is the same as that of the first diversion surface, so that slurry smoothly flows from the surface of the diversion cone 118 to the dispersion disk 116.

The first flow directing surface has an intersecting flow directing outer edge with the top surface of the dispersion plate 116, and the connecting surface 1165 has an intersecting transition outer edge with the top surface of the dispersion plate 116, at least a portion of the transition outer edge and the flow directing outer edge coinciding. So that the slurry flowing through the diversion cone 118 is directly diverted to the diversion channel 116a, enhancing the flow effect.

The foregoing description is only of the preferred embodiments of the present disclosure and description of the principles of the technology being employed. It will be appreciated by those skilled in the art that the scope of the invention in the embodiments of the present disclosure is not limited to the specific combination of the above technical features, but encompasses other technical features formed by any combination of the above technical features or their equivalents without departing from the spirit of the invention. Such as the above-described features, are mutually substituted with (but not limited to) the features having similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A stirring device suitable for high solids slurries, comprising:

a stirring tank body, which is provided with a stirring space;

a feeding pipe fitting formed with a powder inlet, a liquid inlet and a feeding channel communicated with the stirring space;

a feed spindle disposed at least partially in the feed channel;

a feed motor for driving the feed spindle to rotate in the feed channel of the feed tube;

a feed paddle member disposed in the feed passage to agitate at least powder entering the feed passage through the powder inlet;

wherein the feed paddle is mounted to the feed spindle for rotation therewith;

the method is characterized in that:

the stirring device suitable for the high-solid-content slurry further comprises:

a soaking pipe fitting, which is provided with a soaking channel communicated with the feeding channel;

the plurality of soaking paddle parts are rotatably arranged in the soaking channel by taking the central axis as an axis so as to stir the mixture of powder and liquid in the soaking channel when rotating;

a plurality of infiltration columns arranged between the two infiltration paddles so that a mixture of powder and liquid flowing along the infiltration channels is split at the infiltration columns; the infiltration column is arranged between the feeding main shaft and the infiltration pipe fitting; the infiltration column is configured as a cylinder extending in a radial direction of the central axis;

wherein, infiltration oar spare includes:

the connecting shaft part is used for forming rotation-stopping connection with the feeding main shaft;

a paddle part, which is used for simultaneously applying acting force along the axial direction and the centrifugal direction of the central axis to the mixture of powder and liquid in the infiltration channel when the infiltration paddle rotates;

wherein the blade part is provided with a paddle surface which obliquely intersects the central axis.

2. The stirring device suitable for high solids slurries as claimed in claim 1, wherein:

the feed paddle comprises:

the sleeving part is used for forming anti-rotation connection with the feeding main shaft;

a spiral portion configured to extend substantially along a spiral line;

and the connecting part is used for connecting the spiral part to the sleeving part in a mode of spirally encircling the sleeving part.

3. The stirring device suitable for high solids slurries as claimed in claim 1, wherein:

the paddle parts of the soaking paddle part are symmetrically arranged relative to the central axis.

4. The stirring device suitable for high solids slurries as claimed in claim 1, wherein:

the blade surface of the blade portion is configured to have at least one curved surface.

5. The stirring device suitable for high solids slurries as claimed in claim 1, wherein:

the paddle surface of the paddle part is divided into a positive paddle surface and a reverse paddle surface, and the positive paddle surface and the reverse paddle surface are respectively arranged on two opposite sides of the paddle part.

6. The stirring device suitable for high solids slurries as recited in claim 5, wherein:

the blade portion further includes:

the transition surface is connected between the positive paddle surface and the reverse paddle surface;

wherein the transition surface obliquely intersects the central axis.

7. The stirring device suitable for high solids slurries as claimed in claim 1, wherein:

the stirring device suitable for the high-solid-content slurry comprises:

the infiltration ring piece is configured to have a ring structure and is sleeved on the outer side of the feeding main shaft;

one end of the infiltration column is connected to the infiltration pipe fitting, and the other end of the infiltration column is connected to the infiltration ring.

8. The stirring device suitable for high solids slurries as claimed in claim 1, wherein:

the infiltration pipe fitting comprises a plurality of flange pipes, and the infiltration oar is contained in the space surrounded by the flange pipes.