WO2024008095A1

WO2024008095A1 - Slurry preparation device and solid-liquid mixing apparatus

Info

Publication number: WO2024008095A1
Application number: PCT/CN2023/105756
Authority: WO
Inventors: 许立勇
Original assignee: 宁德时代新能源科技股份有限公司
Priority date: 2022-07-05
Filing date: 2023-07-04
Publication date: 2024-01-11
Also published as: CN117380009A

Abstract

Provided in the present application are a slurry preparation device and a solid-liquid mixing apparatus. The slurry preparation device comprises a housing, wherein a feeding cavity, a discharging cavity and a mixing cavity are formed inside the housing; the feeding cavity is used for feeding a liquid and a solid; the discharging cavity is used for discharging a solid-liquid mixture; and the mixing cavity comprises a first mixing chamber and a second mixing chamber, the first mixing chamber being in communication with the feeding cavity, the second mixing chamber being in communication with the first mixing chamber and the discharging cavity, and the first mixing chamber and the second mixing chamber being used for mixing the liquid and the solid to form the solid-liquid mixture. The present application improves the mixing effect of the slurry preparation device, and the load stress of the mixing cavity is distributed, thereby reducing the overload phenomenon caused by load stress concentration.

Description

Pulp making equipment and solid-liquid mixing equipment

Cross-references to related applications

This application claims priority to Chinese patent application 202210782831.3 titled "Pulping Device and Solid-Liquid Mixing Equipment" submitted on July 5, 2022. The entire content of this application is incorporated herein by reference.

Technical field

The present application relates to the technical field of solid-liquid mixing, and in particular to a pulping device and solid-liquid mixing equipment.

Background technique

In the new energy industry, coating industry, cosmetics industry, printing ink, nanocomposite materials and other industries, the slurry preparation process generally involves adding different fixed materials and liquid materials into the pulping device in a quantitative and distributed manner according to the formula requirements, and then Time stirring to achieve mixing between solid and liquid materials.

At present, how to improve the mixing effect when the pulping device mixes solid materials and liquid materials is a research direction in solid-liquid mixing technology.

Contents of the invention

The embodiments of the present application provide a pulping device and solid-liquid mixing equipment, which can improve the mixing effect of solids and liquids.

In a first aspect, embodiments of the present application provide a pulping device. The pulping device includes a housing. A feed chamber, a discharge chamber and a mixing chamber are formed in the housing. The feed chamber is used for liquids and solids to enter; The discharge chamber is used for discharging the solid-liquid mixture. The mixing chamber includes a first mixing chamber and a second mixing chamber. The first mixing chamber is connected with the feed chamber. The second mixing chamber is connected with the first mixing chamber and the discharge chamber. The first mixing chamber is connected with the feeding chamber. The mixing chamber and the second mixing chamber are used to mix liquid and solid to form a solid-liquid mixture.

In the above scheme, solids and liquids enter the feed chamber respectively, are first mixed in the first mixing chamber, and then flow into the second mixing chamber for mixing. The formed solid-liquid mixture flows out through the discharge chamber, and the solid-liquid mixture can also enter the feed again. cavity to mix with the solid to obtain a solid-liquid mixture with a higher solid content. Since the mixing chamber has two chambers, the first mixing chamber and the second mixing chamber, solid and liquid or solid-liquid mixture are mixed more evenly, which improves the mixing effect of the pulping device and distributes the load of the mixing chamber, reducing the load. Overload phenomenon caused by concentrated force.

In some embodiments, the pulping device further includes a motor, and the rotating shaft of the motor passes through the mixing chamber. The rotation of the motor shaft has a stirring effect on the solid and liquid or solid-liquid mixture in the mixing chamber, so that the solid and liquid are fully mixed.

In some embodiments, the feed chamber, the mixing chamber and the discharge chamber are arranged in sequence along the vertical direction, and the rotating shaft penetrates into the pulping device from below the discharge chamber.

In the above scheme, the feed chamber, mixing chamber and discharge chamber are arranged in sequence in the vertical direction to facilitate the flow of materials; the rotating shaft is penetrated into the pulping device from below the discharge chamber to facilitate the placement and maintenance of the motor.

In some embodiments, the motor includes a first sub-motor and a second sub-motor. The first sub-motor has a first sub-shaft passing through the first mixing chamber; the second sub-motor has a second sub-shaft, and the second sub-motor has a first sub-shaft passing through the first mixing chamber. The sub-rotary shaft passes through the second mixing chamber.

In the above solution, the solid and liquid or solid-liquid mixture in the first mixing chamber are mixed through the first sub-rotating shaft of the first sub-motor, and the solid and liquid or solid-liquid mixture in the second mixing chamber are mixed through the second sub-rotating shaft of the second sub-motor. The solid-liquid mixture is mixed, and two independent sub-motors are used to control the first mixing chamber and the second mixing chamber respectively, which can not only reduce the load, but also be applicable to different process parameters.

In some embodiments, the second sub-rotating shaft is sleeved on the outer periphery of the first sub-rotating shaft, which can reduce the space occupied by the second sub-rotating shaft and the first sub-rotating shaft in the mixing chamber and improve the space utilization of the mixing chamber.

In some embodiments, the pulping device further includes a first bearing, and the first bearing is sandwiched between the first sub-rotating shaft and the second sub-rotating shaft.

In the above scheme, the bearing has a supporting effect on the first sub-rotating shaft and the second sub-rotating shaft, improving the stability of the first sub-rotating shaft and the second sub-rotating shaft, and the bearing can reduce the friction between the first sub-rotating shaft and the second sub-rotating shaft. friction coefficient to ensure its rotation accuracy.

In some embodiments, the slurrying device further includes a mixing component and a dispersing component. The mixing component is located in the first mixing chamber and is used to mix solids and liquids; the dispersing component is located in the second mixing chamber and is used to mix and disperse solids and liquids. .

In the above scheme, the solid and liquid or solid-liquid mixture are mixed through the mixing component in the first mixing chamber, and the solid and liquid or solid-liquid mixture are mixed and dispersed through the dispersing component in the second mixing chamber. Distribution mixing is performed first and then dispersion. Mixing not only distributes the load stress and avoids overload caused by concentrated load stress, but also enables the material to achieve a dispersed and mixed effect.

In some embodiments, the mixing component includes a first fixed shaft and a plurality of first protrusions, the first fixed shaft is fixed to the rotating shaft; the plurality of first protrusions are spaced apart on the outer periphery of the first fixed shaft.

In the above solution, the first fixed shaft can rotate following the rotating shaft, and a plurality of first protrusions arranged at intervals can fully mix solids and liquids or solids and solid-liquid mixtures, thereby improving the distribution and mixing effect of materials.

In some embodiments, the first protrusion is disposed obliquely relative to an axial direction of the first fixed shaft.

In the above scheme, the first protruding part is arranged at an angle to provide a downward conveying force to the material, making it easier for the solid-liquid mixture to enter the second mixing chamber.

In some embodiments, the dispersion component includes a rotating member, the rotating member includes a first extending portion and a plurality of second protruding portions, the first extending portion is fixed to the rotating shaft, and the first extending portion moves in a direction away from the rotating shaft. Extension; a plurality of second protruding parts are provided on the first extending part, and the second protruding parts extend along the axial direction of the rotating shaft.

In the above scheme, by arranging a plurality of second protruding parts on the first extension part, the materials can be mixed and sheared, so that the materials can achieve a dispersion and mixing effect.

In some embodiments, the dispersion component further includes a fixing part, the fixing part includes a second extension part and a third protrusion part, the second extension part is fixed to the housing, the second extension part extends in a direction close to the rotating shaft; the third protrusion part The protruding portion is provided on the second extension portion and extends along the axial direction of the rotating shaft. The second protruding portion and the third protruding portion are disposed in an offset manner.

In the above solution, since the fixed part is fixed to the housing, it remains stationary; and the rotating part is fixed to the rotating shaft, so it can rotate following the rotating shaft. The third protruding parts that remain fixed are staggered with the third protruding parts that follow the rotation of the rotating shaft, which can shear and disperse materials into smaller sizes, thereby improving the shearing and dispersing effect on materials.

In some embodiments, the rotating shaft passes through the feed chamber, and the pulping device further includes a conveying component located in the feeding chamber. The conveying component includes a second fixed shaft and a conveying blade. The second fixed shaft is fixed to the rotating shaft; the conveying blade is disposed on the second Fix the outer circumference of the shaft.

In the above scheme, the rotation of the conveying blade facilitates the dispersion of materials, and solids and liquids or solid-liquid mixtures can also be mixed in the feed chamber.

In some embodiments, the conveying blades are arranged in a spiral shape, and the conveying blades are recessed toward the second fixed axis to form a plurality of openings for the solid-liquid mixture to pass.

In the above scheme, the conveying blades are arranged in a spiral shape, which is equivalent to having a downward conveying force for the material, which facilitates the material to enter the first mixing chamber. Providing an opening on the conveying blade can prevent the extension of the conveying blade from blocking the downward flow of the material, so that the material can smoothly enter the first mixing chamber.

In some embodiments, the plurality of openings are arranged in an offset manner in the axial direction of the second fixed shaft.

In the above scheme, multiple openings arranged along the axial direction are arranged in a staggered manner to prevent the material from flowing out. After being broken up, it falls directly into the first mixing chamber through the opening.

In some embodiments, the pulping device further includes an impeller accommodated in the discharge chamber. The impeller includes a third fixed shaft and a plurality of discharge blades. The third fixed shaft is fixed to the rotating shaft; the plurality of discharge blades are arranged along the third fixed shaft. circumferential spacing settings.

In the above solution, the centrifugal force generated by the impeller enables the material to be smoothly discharged from the discharge chamber, which improves the discharge effect of the discharge chamber.

In some embodiments, the impeller further includes a bottom plate and a first grid, the third fixed shaft is fixed to the bottom plate; the first grid is fixed to the bottom plate, and the first grid is arranged circumferentially along the plurality of discharge blades.

In the above scheme, after the material is subjected to the centrifugal force of the impeller, it is discharged from the discharge chamber through the first grid. The first grid has a secondary shearing and dispersing effect on the material, making the material homogeneous again.

In some embodiments, the pulping device further includes a second grid and a third grid, the second grid is fixed to the housing; the third grid is fixed to the housing, and the second grid is spaced apart from the third grid. , the first grid is inserted into the gap formed by the second grid and the third grid.

In the above scheme, the second grid and the third grid remain fixed, while the first grid located between the second grid and the third grid can rotate following the rotating shaft, and the materials pass through the second grid and the third grid in sequence. The first grille and the third grille discharge the material cavity, which improves the dispersion and homogenization effect of the material.

In the second aspect, embodiments of the present application provide a solid-liquid mixing equipment, including the pulping device of any of the above embodiments, a solid storage device, and a circulation device. The solid storage device is used to provide solids for the feed chamber; the circulation device is used to Provide liquid or solid-liquid mixture to the feed chamber.

The above description is only an overview of the technical solutions of the present application. In order to have a clearer understanding of the technical means of the present application, they can be implemented according to the content of the description, and in order to make the above and other purposes, features and advantages of the present application more obvious and understandable. , the specific implementation methods of the present application are specifically listed below.

Description of the drawings

In order to explain the technical solutions of the embodiments of the present application more clearly, the drawings required to be used in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a pulping device according to some embodiments of the present application;

Figure 2 is a schematic structural diagram of a pulping device according to other embodiments of the present application;

Figure 3 is a schematic structural diagram of a pulping device according to some further embodiments of the present application;

Figure 4 is a schematic structural diagram of the mixing component of the pulping device according to some embodiments of the present application;

Figure 5 is a schematic structural diagram of the mixing component shown in Figure 4 from another angle;

Figure 6 is a schematic cross-sectional view of the dispersing component of the pulping device according to some embodiments of the present application;

Figure 7 is a schematic cross-sectional view of the dispersing component of the pulping device according to other embodiments of the present application;

Figure 8 is a schematic structural diagram of the conveying components of the pulping device according to some embodiments of the present application;

Figure 9 is a schematic structural diagram of the conveying component shown in Figure 8 from another angle;

Figure 10 is a schematic structural diagram of an impeller of a pulping device according to some embodiments of the present application;

Figure 11 is a schematic structural diagram of the impeller shown in Figure 10 from another angle;

Figure 12 is a schematic structural diagram of the impeller shown in Figure 10 from another angle;

Figure 13 is a schematic structural diagram of the second grid and the third grid of the pulping device according to some embodiments of the present application;

Figure 14 is a schematic structural view of the second grid and the third grid shown in Figure 13 from another angle;

Figure 15 is a schematic structural diagram of solid-liquid mixing equipment according to some embodiments of the present application;

Figure 16 is a schematic structural diagram of solid-liquid mixing equipment according to other embodiments of the present application;

Figure 17 is a schematic structural diagram of solid-liquid mixing equipment according to some further embodiments of the present application.

The reference numbers are as follows:
Pulp making device 100; housing 10; feed chamber 11; mixing chamber 12; first mixing chamber 12a;
Second mixing chamber 12b; discharge chamber 13; motor 50; rotating shaft 51; first sub-motor 50a; second sub-motor 50b; first sub-rotating shaft 51a; second sub-rotating shaft 51b; sealing structure 52; transmission part 53; active Pulley 531; conveyor belt 532; driven pulley 533; first bearing 90a; second bearing 90b; cooling jacket 91; mixing part 20; first fixed shaft 21; first protrusion 22; dispersion part 30; rotation Part 31; first extension part 311; second protrusion part 312; dispersion blade 313; sleeve shaft 314; fixing part 32; second extension part 321; third protrusion part 322; conveying component 40; second fixed shaft 41 ;Conveying blade 42; opening 43; impeller 60; third fixed shaft 61; discharge blade 62; bottom plate 63; first grid 64; second grid 71; third grid 72; fixed plate 73; pneumatic ball valve 80 ; Solid storage device 200; Warehouse 210; Butterfly valve 220; Rotary valve 230; Circulation device 300; Circulation tank 310; Circulation pump 320; Cooler 400; Pipeline system 500.

Detailed ways

The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and examples. The detailed description of the following embodiments and the accompanying drawings are used to illustrate the principles of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

In the description of this application, it should be noted that, unless otherwise stated, "plurality" means more than two; the terms "upper", "lower", "left", "right", "inside", " The orientation or positional relationship indicated such as "outside" is only for the convenience of describing the present application and simplifying the description. It does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application. Application restrictions. Furthermore, the terms "first," "second," "third," etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. "Hanging

"Straight" does not mean vertical in the strict sense, but within the allowable range of error. "Parallel" does not mean parallel in the strict sense, but within the allowable range of error.

Reference in this application to "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

The directional words appearing in the following description are the directions shown in the figures and do not limit the specific structure of the present application. In the description of this application, it should also be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a removable connection. Detachable connection, or integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application may be understood based on specific circumstances.

In the industrial field, many slurries are made by mixing solids and liquids, especially powders mixed and dispersed in a small amount of liquid, or mixed and dispersed into a high-viscosity solid-liquid mixture, such as slurries used in the field of positive and negative electrodes of lithium-ion batteries. material. Because when the powder is mixed with the liquid, some of the agglomerated powder is not wetted enough and can easily agglomerate. The inventor noticed that in related technologies, powder and liquid are generally placed in pulping equipment and stirred for a long time to reduce the agglomeration phenomenon. The mixing time is long, the energy consumption is large, the local load is large, and it is easy to Causes problems such as blockage and malfunction of pulping equipment.

In view of this, the inventor can reduce the load size during mixing and improve the mixing efficiency and uniformity by setting up two mixing chambers between the feed chamber and the discharge chamber.

Please refer to Figure 1, which is a schematic structural diagram of a pulping device according to some embodiments of the present application. In the first aspect, embodiments of the present application provide a pulping device 100. The pulping device 100 includes a housing 10. A feeding chamber 11, a discharging chamber 13 and a mixing chamber 12 are formed in the housing 10. The feeding chamber 11 is For liquids and solids to enter; the discharge chamber 13 is used for the solid-liquid mixture to be discharged. The mixing chamber 12 includes a first mixing chamber 12a and a second mixing chamber 12b. The first mixing chamber 12a is connected with the feed chamber 11, and the second mixing chamber 12a is connected with the feed chamber 11. The chamber 12b communicates with the first mixing chamber 12a and the discharge chamber 13. The first mixing chamber 12a and the second mixing chamber 12b are used to mix liquid and solid to form a solid-liquid mixture.

The feed chamber 11, the first mixing chamber 12a, the second mixing chamber 12b and the discharge chamber 13 are connected in sequence. Solids and liquids enter the feed chamber 11 respectively, first mix in the first mixing chamber 12a, and then flow into the second mixing chamber. 12b is mixed, and the formed solid-liquid mixture flows out through the discharge chamber 13. The solid-liquid mixture can also enter the feed chamber 11 again after circulation, and is mixed with the solid to obtain a solid-liquid mixture with a higher solid content. Optionally, the above-mentioned chambers can be arranged in sequence along the vertical direction and connected in sequence from top to bottom; they can also be arranged in sequence in the horizontal direction and connected in sequence from left to right.

It should be noted that the pulping device 100 of the embodiment of the present application is particularly suitable as a pulping device 100 suitable for mixing powder and liquid to form a slurry with solid content and high viscosity, such as lithium The pulping device 100 for positive and negative electrode slurries of ion batteries is not limited to the pulping device 100 for positive and negative electrode slurries of lithium ion batteries. If other equipment applies the pulping device 100 provided by the present invention, it should also be used. into the protection scope of the present invention. For example, the slurry making device 100 of the embodiment of the present application can also be used to prepare slurry of a solid-liquid mixture in the coating industry, cosmetics industry, printing ink, nanocomposite materials and other industries.

In the above scheme, since the mixing chamber 12 has two chambers, the first mixing chamber 12a and the second mixing chamber 12b, both the first mixing chamber 12a and the second mixing chamber 12b have a mixing effect, and the mixing of solid and liquid or solid-liquid mixture is It is more uniform, improves the mixing effect of the pulping device 100, and can prevent the pulping device 100 from being blocked or malfunctioning. In addition, the pulping device 100 of this embodiment distributes the load stress of the mixing chamber 12 and reduces the overload phenomenon caused by concentrated load stress.

In some embodiments, the pulping device 100 further includes a motor 50 , and the rotating shaft 51 of the motor 50 passes through the mixing chamber 12 . The rotating shaft 51 can pass through the mixing chamber 12 along its own axial direction. Through the rotation of the rotating shaft 51 of the motor 50, the solid and liquid or the solid-liquid mixture in the mixing chamber 12 can be stirred, so that the solid and liquid are fully mixed.

Optionally, a sealing structure 52 , such as a mechanical seal, is provided on the outer periphery of the rotating shaft 51 , and the sealing structure 52 prevents the solid-liquid mixture from flowing out of the outside of the housing 10 along the rotating shaft 51 .

In some optional embodiments of the present application, only one motor 50 is provided, and its rotating shaft 51 passes through the first mixing chamber 12a and the second mixing chamber 12b, and the first mixing chamber 12a and the second mixing chamber 12b are simultaneously controlled by the rotating shaft 51. materials are mixed. The rotating shaft 51 can also pass through the feed chamber 11, the first mixing chamber 12a, the second mixing chamber 12b and the discharge chamber 13 in sequence, and the materials in the above chambers can be stirred and mixed simultaneously through the rotating shaft 51. It should be noted that the material in this application refers to a mixture of solid and liquid or a solid-liquid mixture. Optionally, in the embodiment shown in FIG. 1 , the motor 50 can be disposed on the side of the discharge chamber 13 away from the mixing chamber 12 along the arrangement direction of the feed chamber 11 , the mixing chamber 12 and the discharge chamber 13 . For example, the motor 50 is located below the discharge chamber 13 , and the rotating shaft 51 is directly connected to the output shaft of the motor 50 .

Figure 2 is a schematic structural diagram of a pulping device in other embodiments of the present application; in the embodiment shown in Figure 2, the motor 50 can also be spaced parallel to the arrangement of the feed chamber 11, the mixing chamber 12 and the discharge chamber 13 For example, the motor 50 is located on the left side of the discharge chamber 13 . Output shaft of motor 50 It is connected to the rotating shaft 51 through a transmission member 53. The transmission member 53 can be a belt transmission member. The transmission member 53 includes a driving pulley 531, a conveyor belt 532 and a driven pulley 533. The driving pulley 531 meshes with the outer periphery of the output shaft of the motor 50. , the driven pulley 533 meshes with the outer periphery of the rotating shaft 51 , the conveyor belt 532 passes through the driving pulley 531 and the driven pulley 533 respectively, and realizes the rotation of the rotating shaft 51 through the transmission member 53 . By adjusting the transmission ratio of the driving pulley 531 and the driven pulley 533, greater output torque can be obtained. Compared with the embodiment in which the rotating shaft 51 is directly connected to the output shaft of the motor 50, in this embodiment, with the same output torque, a smaller power motor 50 can be selected, thereby reducing energy consumption and saving costs.

In some embodiments, the feed chamber 11 , the mixing chamber 12 and the discharge chamber 13 are arranged in sequence along the vertical direction, and the rotating shaft 51 penetrates into the pulping device 100 from below the discharge chamber 13 .

In the above scheme, due to the gravity of the material, the feeding chamber 11, the mixing chamber 12 and the discharge chamber 13 are arranged in sequence in the vertical direction to facilitate the flow of the material. The rotating shaft 51 can pass through the discharge chamber, the mixing chamber and the feeding chamber in sequence from bottom to top. The rotating shaft 51 is inserted into the pulping device 100 from the bottom of the discharge chamber 13 to facilitate the placement and maintenance of the motor 50.

Figure 3 is a schematic structural diagram of a pulping device according to some further embodiments of the present application. As shown in Figure 3, in other embodiments, the motor 50 includes a first sub-motor 50a and a second sub-motor 50b. The first sub-motor 50a has a first sub-rotating shaft 51a, and the first sub-rotating shaft 51a passes through the first mixing chamber. 12a; the second sub-motor 50b has a second sub-rotating shaft 51b, and the second sub-rotating shaft 51b passes through the second mixing chamber 12b.

The first sub-motor 50a and the second sub-motor 50b are independent of each other, and the first sub-rotating shaft 51a and the second sub-rotating shaft 51b can have different rotational speeds to meet different functional requirements of the first mixing chamber 12a and the second mixing chamber 12b. For example, if the first mixing chamber 12a is mainly responsible for the mixing function, and the second mixing chamber 12b has the dual functions of mixing and dispersing, and the boring needs to be sheared and dispersed, the first sub-rotating shaft 51a passing through the first mixing chamber 12a can have a more For low rotational speed, the second sub-rotating shaft 51b passing through the second mixing chamber 12b needs to have a higher rotational speed.

Optionally, the first sub-rotary shaft 51a can pass through the first mixing chamber 12a and the feed chamber 11 respectively, and the second sub-rotary shaft 51b can pass through the second mixing chamber 12b and the discharge chamber 13 respectively.

In the above solution, the solid and liquid or solid-liquid mixture in the first mixing chamber 12a are mixed through the first sub-rotating shaft 51a of the first sub-motor 50a, and the second sub-shaft of the second sub-motor 50b is mixed. The rotating shaft 51b mixes solid and liquid or solid-liquid mixture in the second mixing chamber 12b, and two independent sub-motors 50 are used to control the first mixing chamber 12a and the second mixing chamber 12b respectively, which can not only reduce the load, but also Applicable to different process parameters.

Similarly, the output shaft of the first sub-motor 50a can also be connected to the first sub-rotating shaft 51a through the transmission member 53, and/or the output shaft of the second sub-motor 50b can be connected to the second sub-rotating shaft 51b through the transmission member 53, so as to The output torque of the first sub-motor 50a and/or the second sub-motor 50b is respectively increased. Likewise, the transmission member 53 may be a belt transmission member.

In some embodiments, the second sub-rotating shaft 51b is sleeved on the outer circumference of the first sub-rotating shaft 51a. The first sub-rotating shaft 51a can be configured as a solid shaft, and the second sub-rotating shaft 51b can be configured as a hollow shaft. The first sub-rotary shaft 51a extends through the second sub-rotary shaft 51b to the first mixing chamber 12a, and can also extend to the feeding chamber 11. The second sub-rotary shaft 51b passes through the discharge chamber 13 and the second mixing chamber 12b respectively.

In the above solution, the second sub-rotary shaft 51b is sleeved on the outer periphery of the first sub-rotary shaft 51a, which can reduce the space occupied by the second sub-rotary shaft 51b and the first sub-rotary shaft 51a in the mixing chamber 12 and improve the space utilization of the mixing chamber 12. Rate.

In some embodiments, the pulping device 100 further includes a first bearing 90a, which is sandwiched between the first sub-rotating shaft 51a and the second sub-rotating shaft 51b.

In the above solution, there is a certain gap between the first sub-rotating shaft 51a and the second sub-rotating shaft 51b, and the first bearing 90a is located in the gap. The first bearing 90a has a supporting effect on the first sub-rotating shaft 51a and the second sub-rotating shaft 51b, improving the stability of the first sub-rotating shaft 51a and the second sub-rotating shaft 51b, and the first bearing 90a can lower the first sub-rotating shaft 51a and the second sub-rotating shaft 51b. The friction coefficient between the second sub-rotating shaft 51b ensures its rotation accuracy. A plurality of first bearings 90a arranged at intervals can be provided along the axial direction of the rotating shaft 51 to further improve the stability of the rotating shaft 51.

Furthermore, a second bearing 90b can also be provided between the rotating shaft 51 and the housing 10 to support the rotating shaft 51 and improve the stability of the rotating shaft 51. Moreover, the second bearing 90b can reduce the friction coefficient of the rotating shaft 51 and ensure its Rotation accuracy. Furthermore, a cooling jacket 91 is provided on the outer periphery of the second bearing 90b. The second bearing 90b is located between the rotating shaft 51 and the cooling jacket 91, which can cool down the second bearing 90b that has a higher temperature during operation and improve the second bearing 90b. The service life of bearing 90b.

In some embodiments, the pulping device 100 further includes a mixing component 20 and a dispersing component 30. The mixing component 20 is located in the first mixing chamber 12a and is used to mix solids and liquids; the dispersing component 30 is located in the second mixing chamber 12b and is used to mix and disperse solids and liquids.

In the above solution, the solid and liquid or solid-liquid mixture are mixed through the mixing component 20 in the first mixing chamber 12a, and the solid and liquid or solid-liquid mixture are mixed and dispersed through the dispersing component 30 in the second mixing chamber 12b. First, Distributed mixing and then dispersing mixing not only distributes the load stress and avoids the overload phenomenon caused by concentrated load stress, but also achieves the dispersion and mixing effect of the material.

Please refer to FIG. 4 and FIG. 5 in conjunction. FIG. 4 is a schematic structural diagram of the mixing component of the pulping device according to some embodiments of the present application, and FIG. 5 is a schematic structural diagram of the mixing component shown in FIG. 4 from another angle. The mixing component 20 includes a first fixed shaft 21 and a plurality of first protrusions 22 . The first fixed shaft 21 is fixed on the rotating shaft 51 ; the plurality of first protrusions 22 are spaced on the outer periphery of the first fixed shaft 21 .

The first fixed shaft 21 can be sleeved on the outer circumference of the rotating shaft 51. If the motor 50 includes a first sub-motor 50a and a second sub-motor 50b, the first fixed shaft 21 can be fixed to the first sub-rotating shaft 51a. The first protruding portion 22 protrudes and extends relative to the first fixed shaft 21 in a direction away from the rotating shaft 51 . The plurality of first protruding portions 22 can be arranged at irregular intervals on the outer periphery of the first fixed shaft 21 , or can be evenly arranged on the outer periphery of the first fixed shaft 21 . the outer circumference of the first fixed shaft 21 . The first fixed shaft 21 can rotate following the rotating shaft 51, and a plurality of first protrusions 22 arranged at intervals can fully mix solids and liquids or solids and solid-liquid mixtures, thereby improving the distribution and mixing effect of materials.

In some embodiments, the first protruding portion 22 is arranged obliquely relative to the axial direction of the first fixed shaft 21 . The first protruding portion 22 is arranged at an angle to provide a downward conveying force to the material, thereby facilitating the solid-liquid mixture to enter the second mixing chamber 12b. The inclination direction of the first protruding part 22 can be set according to the rotation direction of the rotating shaft 51. For example, if the rotating shaft 51 rotates counterclockwise, the first protruding part 22 can be inclined downward and to the right, so that the inclination of the first protruding part 22 can be adjusted. It is consistent with the rotation direction of the rotating shaft 51 to facilitate downward conveying of materials.

Optionally, part of the first protruding part 22 can be set to be inclined relative to the axial direction of the first fixed shaft 21 , and the other part of the first protruding part 22 can be set to be in a parallel state without being inclined. The above arrangement can not only have a downward conveying force for the materials, but also enable a part of the materials to stay in the first mixing chamber 12a for a longer time and mix more fully.

Furthermore, the plurality of first protrusions 22 are disposed in offset positions along the axial direction of the first fixed shaft 21 so that the material can smoothly fall into the second mixing chamber 12b.

Please refer to FIGS. 6 and 7 in conjunction. FIG. 6 is a schematic cross-sectional view of the dispersing component of the pulping device according to some embodiments of the present application, and FIG. 7 is a schematic cross-sectional view of the dispersing component of the pulping device according to other embodiments of the present application. The dispersion component 30 includes a rotating member 31. The rotating member 31 includes a first extending portion 311 and a plurality of second protruding portions 312. The first extending portion 311 is fixed to the rotating shaft 51, and the first extending portion 311 extends in a direction away from the rotating shaft 51; A plurality of second protruding portions 312 are provided on the first extending portion 311 , and the second protruding portions 312 extend along the axial direction of the rotating shaft 51 .

The first extension portion 311 extends along the radial direction of the rotation shaft 51 in a direction away from the rotation shaft 51 . The first extension portion 311 can be arranged circumferentially along the rotation shaft 51 , or multiple first extension portions 311 can be provided. Multiple first extension portions 311 are arranged at intervals along the outer circumference of the rotating shaft 51. A plurality of second protrusions 312 can be provided on each first extension portion 311. The second protrusions 312 can be arranged vertically on the first extension portion 311. The plurality of second protrusions 311 can be arranged vertically on the first extension portion 311. The portions 312 are arranged at intervals along the extending direction of the first extending portion 311 . The size of the second protruding portion 312 along the axial direction of the rotating shaft 51 can be set as needed, and details will not be described again.

In the above scheme, the rotating member 31 can rotate together with the rotating shaft 51. By arranging a plurality of second protruding parts 312 on the first extending part 311, the material can be mixed and sheared, so that the material reaches Disperse blending effect.

In some embodiments, the dispersion component 30 further includes a fixing part 32. The fixing part 32 includes a second extension part 321 and a third protruding part 322. The second extension part 321 is fixed to the housing 10. The second extension part 321 moves closer to the housing 10. The third protruding portion 322 is disposed on the second extending portion 321 and extends along the axial direction of the rotating shaft 51 . The second protruding portion 312 and the third protruding portion 322 are disposed in an offset manner.

Correspondingly, the second extension portion 321 extends along the radial direction of the rotation shaft 51 in a direction close to the rotation shaft 51. The second extension portion 321 can be circumferentially arranged along the inner wall of the housing 10, or multiple second extension portions 321 can be provided. A plurality of second extension portions 321 are arranged at intervals along the outer circumference of the rotating shaft 51. A plurality of third protrusions 322 can be provided on each second extension portion 321, and the third protrusions 322 can be arranged perpendicularly to the second extension portion 321. The plurality of third protruding portions 322 are arranged at intervals along the extending direction of the second extending portion 321 . The size of the third protruding portion 322 along the axial direction of the rotating shaft 51 can be set as needed. The details will not be described again.

The second extension part 321 is spaced apart from the first extension part 311, and the second protrusion part 312 and the third protrusion part 322 are disposed in an offset manner, with a certain gap between them. Since the fixed part 32 is fixed to the housing 10 , it remains stationary, and the rotating part 31 is fixed to the rotating shaft 51 , so it can rotate following the rotating shaft 51 . The material can enter the gap between the second protruding part 312 and the third protruding part 322, and be sheared and dispersed in a plurality of the above gaps.

In the above scheme, the third protruding parts 322 that remain fixed are staggered with the third protruding parts 322 that follow the rotation of the rotating shaft 51, which can shear and disperse the materials to obtain smaller sizes, improve the shearing and dispersing effect of the materials, and avoid After the material enters the discharge chamber 13, material blocking occurs.

Further, a dispersing blade 313 can be provided on the side of the first extending portion 311 away from the first protruding portion 22. The rotation of the dispersing blade 313 generates centrifugal force, and the material can be transported to the direction of the housing 10 of the first mixing chamber 12a. This allows the material to flow into the gap between the second protruding part 312 and the third protruding part 322 to complete shearing and dispersion.

Optionally, the first extension part 311 can also be fixed on the sleeve shaft 314. The sleeve shaft 314 is sleeved on the outer circumference of the rotating shaft 51. The first extension part 311 is fixed on the rotating shaft 51 through the sleeve shaft 314. A plurality of first extending portions 311 and a plurality of second extending portions 321 may also be provided along the axial direction of the rotating shaft 51 , and the plurality of first extending portions 311 are fixed to the sleeve shaft 314 at intervals along the axial direction of the rotating shaft 51 . The plurality of first extension parts 311 and the plurality of second extension parts 321 are arranged in one-to-one correspondence.

Please refer to Figures 8 and 9 in conjunction. Figure 8 is a schematic structural diagram of the conveying component of the pulping device according to some embodiments of the present application; Figure 9 is a schematic structural diagram of the conveying component shown in Figure 8 from another angle. The rotating shaft 51 passes through the feeding chamber 11. The pulping device 100 also includes a conveying component 40 located in the feeding chamber 11. The conveying component 40 includes a second fixed shaft 41 and a conveying blade 42. The second fixed shaft 41 is fixed to the rotating shaft 51; the conveying blade 42 is provided on the outer periphery of the second fixed shaft 41 . Through the rotation of the conveying blade 42, the materials are easily dispersed, and solids and liquids or solid-liquid mixtures can also be mixed in the feed chamber 11.

In some embodiments, the conveying blades 42 are arranged in a spiral shape, and the conveying blades 42 are recessed toward the second fixed axis 41 to form a plurality of openings 43 for the solid-liquid mixture to pass. Arranging the conveying blades 42 in a spiral shape is equivalent to having a downward conveying force for the materials, which facilitates the materials to enter the first mixing chamber 12a. Providing an opening 43 on the conveying blade 42 can prevent the conveying blade 42 from The extension blocks the downward flow of materials, so that the materials can smoothly enter the first mixing chamber 12a.

In some embodiments, the plurality of openings 43 are arranged in an offset manner in the axial direction of the second fixed shaft 41 . The staggered arrangement of the multiple openings 43 provided along the axial direction can prevent the materials from directly falling into the first mixing chamber 12a through the openings 43 without being dispersed, thereby avoiding the possibility of agglomeration of the materials.

Please refer to Figures 10 to 12 in conjunction. Figure 10 is a schematic structural view of the impeller of the pulping device according to some embodiments of the present application; Figure 11 is a schematic structural view of the impeller shown in Figure 10 from another angle; Figure 12 is a schematic structural view of the impeller shown in Figure 10 Another structural diagram of the impeller.

The pulping device 100 also includes an impeller 60 accommodated in the discharge chamber 13. The impeller 60 includes a third fixed shaft 61 and a plurality of discharge blades 62. The third fixed shaft 61 is fixed to the rotating shaft 51; the plurality of discharge blades 62 extend along the third The three fixed shafts 61 are arranged at intervals in the circumferential direction. The centrifugal force generated by the impeller 60 enables the material to be smoothly discharged from the discharge chamber 13, thereby improving the discharge effect of the discharge chamber 13.

In some embodiments, the impeller 60 also includes a bottom plate 63 and a first grid 64. The third fixed shaft 61 is fixed to the bottom plate 63; the first grid 64 is fixed to the bottom plate 63, and the first grid 64 extends along a plurality of discharge blades. 62 circumferential surround settings. After the material is subjected to the centrifugal force of the impeller 60, it is discharged from the discharge chamber 13 through the first grid 64. The first grid 64 has a secondary shearing and dispersing effect on the material, making the material homogeneous again.

Please refer to Figure 13 and Figure 14 in conjunction. Figure 13 is a schematic structural diagram of the second grid and the third grid of the pulping device according to some embodiments of the present application; Figure 14 is the second grid and the third grid shown in Figure 13 Another structural diagram of the gate. The pulping device 100 also includes a second grid 71 and a third grid 72. The second grid 71 is fixed to the housing 10; the third grid 72 is fixed to the housing 10. The second grid 71 and the third grid 72 are arranged at intervals, and the first grid 64 is inserted into the gap formed by the second grid 71 and the third grid 72 . The second grid 71 and the third grid 72 remain fixed, and the first grid 64 located between the second grid 71 and the third grid 72 can rotate following the rotating shaft 51, and the materials pass through the second grid in sequence. 71. The first grille 64 and the third grille 72 discharge the material cavity, which improves the dispersion and homogenization effect of the material.

Optionally, the second grid 71 and the third grid 72 can be fixed to the fixed plate 73 and installed on the housing 10 through the fixed plate 73 .

Please refer to Figures 15 to 17 in conjunction. Figure 15 is a schematic structural diagram of a solid-liquid mixing device according to some embodiments of the present application, and Figure 16 is a structural diagram of a solid-liquid mixing device according to other embodiments of the present application. Schematic diagram. Figure 17 is a schematic structural diagram of solid-liquid mixing equipment in some embodiments of the present application. In the second aspect, embodiments of the present application provide a solid-liquid mixing equipment, including the pulping device 100 of any of the above embodiments, a solid storage device 200 and a circulation device 300. The solid storage device 200 is used to provide solids to the feed chamber 11. ; The circulation device 300 is used to provide the feed chamber 11 with liquid or a solid-liquid mixture. Since this solid-liquid mixing equipment adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described again one by one.

The solid storage device 200 can be a powder bin, which is arranged above the pulping device 100. The solid storage device 200 includes a bin body 210 and a butterfly valve 220 and a rotary valve 230 arranged on the bin body 210. The butterfly valve 220 is used to seal the powder bin. The discharge port, the rotary valve 230 is used to control the powder. The pulping device 100 also includes a pneumatic ball valve 80 provided on the housing 10 . The powder falls from the bin body 210 by its own gravity, and enters the feed chamber 11 of the pulping device 100 through the butterfly valve 220, the rotary valve 230 and the pneumatic ball valve 80 in sequence.

The solid-liquid mixing equipment also includes a cooler 400 and a pipeline system 500. The circulation device 300 includes a circulation tank 310 and a circulation pump 320. The pulping device 100, the circulation tank 310, the circulation pump 320, and the cooler 400 are connected in sequence through the pipeline system 500. The circulation tank 310 is used to cache liquid or mix the dispersed solid-liquid mixture. The solid-liquid mixture discharged from the discharge chamber 13 enters the circulation pump 320, and is then pumped out by the circulation pump 320 to the cooler 400 for cooling, and then circulates into the pulping device. The feeding chamber 11 of 100 continues to mix with the solids, and the solid content of the materials continues to increase. After multiple times of mixing and dispersion, the materials are dispersed more evenly and agglomeration is avoided.

According to some embodiments of the present application, the present application provides a pulping device 100. Please refer to Figure 1. Figure 1 is a schematic structural diagram of a pulping device according to some embodiments of the present application. The pulping device 100 includes a housing 10. A feed chamber 11, a discharge chamber 13 and a mixing chamber 12 are formed in the housing 10. The feed chamber 11 is used for liquids and solids to enter; the discharge chamber 13 is used for solids and liquids. The mixture is discharged, and the mixing chamber 12 includes a first mixing chamber 12a and a second mixing chamber 12b. The first mixing chamber 12a is connected to the feed chamber 11, and the second mixing chamber 12b is connected to the first mixing chamber 12a and the discharge chamber 13. The mixing chamber 12a and the second mixing chamber 12b are used to mix liquid and solid to form a solid-liquid mixture. In the above scheme, since the mixing chamber 12 has two chambers, the first mixing chamber 12a and the second mixing chamber 12b, both the first mixing chamber 12a and the second mixing chamber 12b have a mixing effect, so that solids and liquids or solid-liquid mixtures The mixture of the compound is more uniform, the mixing effect of the pulping device 100 is improved, and the clogging and malfunction of the pulping device 100 can be avoided. In addition, the pulping device 100 of this embodiment distributes the load stress of the mixing chamber 12 and avoids the overload phenomenon caused by concentrated load stress.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. The scope shall be covered by the claims and description of this application. In particular, as long as there is no structural conflict, the technical features mentioned in the various embodiments can be combined in any way. The application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

A pulping device includes a shell, and the shell is formed with:

Feed chamber for liquids and solids to enter;

The discharge chamber is used for the discharge of solid-liquid mixture;

A mixing chamber includes a first mixing chamber and a second mixing chamber. The first mixing chamber is connected to the feed chamber, and the second mixing chamber is connected to the first mixing chamber and the discharge chamber. The first mixing chamber and the second mixing chamber are used to mix the liquid and the solid to form the solid-liquid mixture.
The pulping device according to claim 1, wherein the pulping device further includes a motor, and the rotating shaft of the motor passes through the mixing chamber.
The pulping device according to claim 2, wherein the feed chamber, mixing chamber and discharge chamber are arranged in sequence along the vertical direction, and the rotating shaft penetrates into the pulping chamber from below the discharge chamber. device.
The pulping device according to claim 2, wherein the motor includes:

A first sub-motor has a first sub-rotating shaft, and the first sub-rotating shaft passes through the first mixing chamber;

The second sub-motor has a second sub-rotating shaft, and the second sub-rotating shaft passes through the second mixing chamber.
The pulping device according to claim 4, wherein the second sub-rotating shaft is sleeved on the outer periphery of the first sub-rotating shaft.
The pulping device according to claim 5, wherein the pulping device further includes a first bearing, and the first bearing is sandwiched between the first sub-rotating shaft and the second sub-rotating shaft.
The pulping device according to any one of claims 2 to 6, wherein the pulping device further includes:

A mixing component, located in the first mixing chamber, used to mix the solid and the liquid;

A dispersing component, located in the second mixing chamber, is used to mix and disperse the solid and the liquid.
The pulping device according to claim 7, wherein the mixing component includes:

a first fixed shaft, fixed to the rotating shaft;

A plurality of first protrusions are arranged at intervals on the outer periphery of the first fixed shaft.
The pulping device according to claim 8, wherein the first protrusion is arranged obliquely relative to the axial direction of the first fixed shaft.
The pulping device according to claim 7, wherein the dispersing component includes a rotating member, and the rotating member includes:

A first extension part is fixed to the rotating shaft, and the first extending part extends in a direction away from the rotating shaft;

A plurality of second protruding parts are provided on the first extending part, and the second protruding parts extend along the axial direction of the rotating shaft.
The pulping device according to claim 10, wherein the dispersion component further includes a fixing part, the fixing part includes:

A second extension part is fixed to the housing, and the second extension part extends in a direction close to the rotating shaft;

A third protruding portion is provided on the second extension portion and extends along the axial direction of the rotating shaft. The second protruding portion and the third protruding portion are arranged in an offset manner.
The pulping device according to any one of claims 2 to 11, wherein the rotating shaft passes through the feed chamber, the pulping device further includes a conveying component located in the feeding chamber, the conveying component includes :

a second fixed shaft, fixed to the rotating shaft;

The conveying blade is arranged on the outer periphery of the second fixed shaft.
The pulping device according to claim 12, wherein the conveying blade is in a spiral shape It is provided that the conveying blade is recessed toward the direction of the second fixed axis to form a plurality of openings for the solid-liquid mixture to pass through.
The pulping device according to claim 13, wherein a plurality of the openings are arranged in a staggered manner in the axial direction of the second fixed shaft.
The pulping device according to any one of claims 2 to 11, wherein the pulping device further includes an impeller accommodated in the discharge chamber, the impeller comprising:

a third fixed shaft, fixed to the rotating shaft;

A plurality of discharge blades are arranged at intervals along the circumferential direction of the third fixed shaft.
The pulping device according to claim 15, wherein the impeller further includes:

A bottom plate, the third fixed shaft is fixed to the bottom plate;

The first grid is fixed to the bottom plate, and the first grid is arranged circumferentially along the plurality of discharge blades.
The pulping device according to claim 16, wherein the pulping device further comprises:

a second grid, fixed to the housing;

A third grid is fixed to the housing, the second grid is spaced apart from the third grid, and the first grid is inserted into the gap formed by the second grid and the third grid. .
A solid-liquid mixing equipment including:

The pulping device according to any one of claims 1 to 17; and,

a solids storage device for providing solids to the feed chamber;

A circulation device is used to provide liquid or solid-liquid mixture to the feed chamber.