Dispersing mechanism and circulating pulping equipment

Abstract

The utility model discloses a dispersing mechanism and circulating pulping equipment. The dispersing mechanism is arranged in the circulating tank and comprises a shell, a rotor and a stator; the shell is arranged in the circulating tank and is in sealed connection with the circulating tank, and a dispersion cavity is formed in the shell. The rotor is rotatably arranged in the dispersing cavity and comprises a rotor base and at least one rotor ring arranged on the rotor base, and the rotor ring is provided with a plurality of first shearing grooves in the circumferential direction of the dispersing mechanism. The stator is fixedly arranged in the dispersion cavity and comprises at least one stator ring, the stator ring is arranged on the inner side or / and the outer side of the rotor ring, the stator ring is provided with a plurality of second shearing grooves communicated with the first shearing grooves in the circumferential direction of the dispersion mechanism, and therefore the circulation capacity and the dispersion capacity of the dispersion mechanism are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pulping technical field especially relates to a dispersion mechanism and circulating pulping equipment. BACKGROUND

[0002] The existing dispersion mechanism drives the rotor to rotate through the rotating shaft to form negative pressure in the dispersion mechanism, and the slurry is sucked into the dispersion mechanism for dispersion and shearing by the negative pressure. However, the rotor and the stator are directly arranged in the circulating tank, so that leakage is prone to occur when the fluid flows through the rotor, the capacity loss of the fluid in the dispersion mechanism is large, and the circulating capacity and dispersion effect of the slurry are reduced. SUMMARY

[0003] Therefore, the utility model discloses a dispersion mechanism and circulating pulping equipment to solve the technical problem of poor dispersion and poor dispersion effect of the slurry in the prior art.

[0004] In the first aspect, the utility model discloses a dispersion mechanism arranged in a circulating tank, which comprises a shell, a rotor and a stator. The shell is arranged in the circulating tank and is sealingly connected with the circulating tank, and a dispersion cavity is arranged in the shell. The rotor is rotatably arranged in the dispersion cavity, and the rotor comprises a rotor base and at least one rotor ring arranged on the rotor base. A plurality of first shearing grooves are arranged on the rotor ring along the circumferential direction of the dispersion mechanism. The stator is fixedly arranged in the dispersion cavity, and the stator comprises at least one stator ring arranged on the inner side or / and the outer side of the rotor ring. A plurality of second shearing grooves are arranged on the stator ring along the circumferential direction of the dispersion mechanism and are connected with the plurality of first shearing grooves.

[0005] In combination with the first aspect, in some implementations of the first aspect, the shell comprises a flow guide and a connecting base, the flow guide is detachably connected with the connecting base, and the dispersion cavity is formed between the flow guide and the connecting base. The connecting base is sealingly connected with the circulating tank.

[0006] In combination with the first aspect, in some implementations of the first aspect, the flow guide comprises a mounting plate and a guide sleeve, the guide sleeve is fixedly connected with the mounting plate, the inner cavity of the guide sleeve is connected with the dispersion cavity, and the stator ring is fixedly connected with one end of the mounting plate away from the guide sleeve.

[0007] In combination with the first aspect, in some implementations of the first aspect, the bottom of the outer side wall of the guide sleeve is provided with a guide surface, the guide surface is connected with the outer side wall of the guide sleeve and the top wall of the mounting plate away from the stator ring, wherein the guide surface is arranged obliquely relative to the central axis of the guide sleeve and is configured as a plane or a curved surface.

[0008] With reference to the first aspect, in some implementations of the first aspect, an end of the guide sleeve opposite to the mounting plate is provided with a reinforcing structure configured as an arc-shaped chamfer or an arc-shaped roll edge.

[0009] With reference to the first aspect, in some implementations of the first aspect, the stator further comprises a stator base provided on a side of the mounting plate opposite to the guide sleeve; the mounting plate and the stator base are independently provided and fixedly connected; or the mounting plate and the stator base are integrally formed; a side of the stator base opposite to the mounting plate is fixedly connected with the stator ring and is provided with a through hole in communication with the plurality of first shear grooves and the inner cavity of the guide sleeve.

[0010] With reference to the first aspect, in some implementations of the first aspect, the housing further comprises a plurality of connecting rods, one end of each of the connecting rods is connected with the flow guide, the other end of each of the connecting rods is connected with the connecting base, the plurality of connecting rods are arranged in a circumferential direction of the dispersion mechanism and are arranged around an inner side of the outermost stator ring.

[0011] With reference to the first aspect, in some implementations of the first aspect, a cross section of the connecting rod perpendicular to an axial direction of the dispersion mechanism is circular or drop-shaped.

[0012] With reference to the first aspect, in some implementations of the first aspect, the housing further comprises a plurality of positioning sleeves, one end of each of the positioning sleeves is connected with the flow guide, the other end of each of the positioning sleeves is connected with the connecting base, and the connecting rod is arranged in the positioning sleeve.

[0013] With reference to the first aspect, in some implementations of the first aspect, an inner wall of the circulation tank comprises a tank top wall, a tank bottom wall and a tank side wall connecting the tank top wall and the tank bottom wall, the tank bottom wall is arranged to be inclined relative to the tank side wall towards one side of the dispersion mechanism, and is smoothly and transitionally connected with a top wall of the connecting base towards the flow guide.

[0014] With reference to the first aspect, in some implementations of the first aspect, the dispersion mechanism further comprises an impeller, the impeller is arranged on the rotor base, the rotor ring and the impeller are located on the same side of the rotor base and surround the impeller, the impeller is exposed at the through hole, and an end of the impeller away from the rotor base extends into the inner cavity of the guide sleeve; or the end of the impeller away from the rotor base is located outside the inner cavity of the guide sleeve.

[0015] In some embodiments of the first aspect, the impeller comprises a base and blades, the base is fixedly connected with the rotor base, the blades are arranged on the side wall of the base, and the blades are configured as straight blades, cylindrical blades or twisted blades.

[0016] In some embodiments of the first aspect, the outermost rotor ring of the rotor base is located inside the outermost stator ring.

[0017] In some embodiments of the first aspect, the ratio of the diameter of the outermost rotor ring of the rotor base to the inner diameter of the circulation tank is greater than or equal to 0.1.

[0018] In some embodiments of the first aspect, the first shear groove has a slotting ratio greater than or equal to 0.2.

[0019] In some embodiments of the first aspect, the gap between adjacent rotor rings and stator rings is less than or equal to 5 mm.

[0020] In some embodiments of the first aspect, the rotor ring has a first thickness in the radial direction of the dispersion mechanism, the stator ring has a second thickness in the radial direction of the dispersion mechanism, a shear gap is formed between adjacent rotor rings and stator rings, the ratio of the first thickness to the shear gap is greater than or equal to 1.5; and / or, the ratio of the second thickness to the shear gap is less than or equal to 5; and / or, the ratio of the first thickness to the second thickness is greater than or equal to 1.5.

[0021] In some embodiments of the first aspect, the ratio of the first thickness to the shear gap is greater than or equal to 3; and / or, the ratio of the second thickness to the shear gap is less than or equal to 2; and / or, the ratio of the first thickness to the second thickness is greater than or equal to 2.

[0022] In some embodiments of the first aspect, the first shear groove has a slotting direction forming a first included angle with the rotation direction of the rotor, and the second shear groove has a slotting direction forming a second included angle with the rotation direction of the rotor, wherein 90°≤α<180°, 0°<β≤90°.

[0023] In some embodiments of the first aspect, the stator is configured as a plastic structure as a whole; or the stator is configured as a metal structure, and the surface of the stator is coated with a plastic structure.

[0024] In some implementations of the first aspect, the stator is integrally formed with the shell; or, the stator and the shell are independently arranged and fixedly connected.

[0025] In some implementations of the first aspect, the stator rings are arranged in three, and the rotor rings are arranged in two, each of the rotor rings being arranged between two adjacent stator rings along the radial direction of the dispersion mechanism.

[0026] In some implementations of the first aspect, the stator rings are arranged in multiple, and the rotor rings are arranged in multiple, first shear grooves of two adjacent rotor rings being arranged in a staggered manner along the radial direction of the dispersion mechanism; and / or, second shear grooves of two adjacent stator rings being arranged in a staggered manner along the radial direction of the dispersion mechanism.

[0027] In some implementations of the first aspect, the stator rings are arranged in multiple, and thicknesses of the multiple stator rings gradually increase from inside to outside.

[0028] In some implementations of the first aspect, the stator rings and the rotor rings are alternately arranged at equal intervals along the radial direction of the dispersion mechanism; and a width of the first shear groove in the circumferential direction of the dispersion mechanism is equal to a width of the second shear groove in the circumferential direction of the dispersion mechanism.

[0029] In the second aspect, the utility model provides a circulating pulping equipment, including circulating jar and dispersion mechanism as described above, dispersion mechanism sets up in circulating jar.

[0030] The dispersion mechanism and the circulating pulping equipment have the following advantages. On the one hand, the rotor and the stator are arranged in the dispersion cavity in the shell, so that the shell can weaken the impact force of the pulp fluid on the internal parts of the dispersion mechanism, avoid the leakage of the pulp fluid when flowing through the rotor and the stator, reduce the energy loss of the pulp fluid in the dispersion mechanism, improve the circulation capacity and dispersion capacity of the dispersion mechanism, reduce the direct collision between the solid substances in the pulp fluid and the internal parts of the dispersion mechanism, and prolong the service life of the dispersion mechanism. On the other hand, the rotation of the rotor and the stator produces strong shear force, improves the mixing effect and dispersion effect of the pulp, and produces an effect similar to that of a centrifugal pump. The centrifugal effect produced by the centrifugal pump can accelerate the flow of the pulp in the dispersion cavity to the outside, so that the process of the pulp passing through the rotor ring and the stator ring becomes rapid and easy, thereby improving the discharge capacity of the dispersion mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the accompanying drawings in the following description only only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without creative labor.

[0032] Figure 1 is a cross-sectional view of a circulating pulping equipment provided by the first embodiment of the present application.

[0033] Figure 2 is Figure 1 is a structural schematic view of a first embodiment of a dispersion mechanism of the circulating pulping equipment in

[0034] Figure 3 is Figure 2 is an exploded view of the dispersion mechanism in

[0035] Figure 4 is Figure 2 is a cross-sectional view of a first implementation of the dispersion mechanism in along an axial direction of the circulating pulping equipment.

[0036] Figure 5 is Figure 2 is a cross-sectional view of a second implementation of the dispersion mechanism in along a radial direction of the circulating pulping equipment.

[0037] Figure 6 is Figure 2 is a structural schematic view of a rotor of the dispersion mechanism in

[0038] Figure 7 is Figure 2 is a cross-sectional view of the dispersion mechanism in along an axial direction of the circulating pulping equipment.

[0039] Figure 8 is Figure 1 is a structural schematic view of a second embodiment of the dispersion mechanism of the circulating pulping equipment in

[0040] Figure 9 is Figure 8 is a cross-sectional view of the dispersion mechanism in along an axial direction of the circulating pulping equipment.

[0041] Explanation of main reference signs: circulating pulping equipment-1000; circulating tank-100; circulating cavity-101; tank top wall-1011; tank bottom wall-1012; tank side wall-1013; mounting hole-102; discharge pipeline-103; tank body-110; tank cover-120; dispersion mechanism-300; rotor-10; rotor base-11; impeller-12; base-121; blade-122; rotor ring-13; first shear groove-131; first round corner-132; auxiliary blade-14; rotating shaft-21; driving member-22; limiting member-23; connecting shaft-231; conical head-232; mounting seat-24; stator-30; stator base-31; through hole-311; stator ring-33; second shear groove-331; second round corner-332; shell-40; flow guide-41; dispersion cavity-402; shear gap-403; mounting plate-411; mounting groove-4111; guide sleeve-412; guide surface-4121; reinforcing structure-413; first arc surface-4131; second arc surface-4132; flow guide plate-414; flow guide surface-4141; connecting rod-42; connecting rod part-421; stop part-422; shear structure-423; positioning sleeve-43; locking member-44; connecting base-45; sealing groove-4501; avoidance opening-4502; boss part-451; first flange part-452; second flange part-453; first thickness-D1; second thickness-D2; axial direction-X; radial direction-Y; circumferential direction-Z; rotating direction-F; central axis-P.

[0042] The following detailed description will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0044] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. The use of the terms "first", "second", and the like does not imply any particular order, but they are used to differentiate one from another. It is to be understood that the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. The terms "includes", "comprises", and variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Moreover, the present application can take many different forms other than the embodiments described herein, and the embodiments described herein are not intended to limit the scope of the present application. The following detailed description is provided to provide a more complete understanding of the present application, and is not intended to limit the scope of the present application. Words such as "upper", "lower", "left", "right", and the like, used in this description, refer to the orientation of the illustrated structure as shown in the drawings under discussion. In the description of the present application, it is to be understood that the terminology used is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. Unless specifically defined herein, the terms "mount", "connected", "connecting", "set on" are to be given an expansive interpretation consistent with the context of this application, for example, connecting can be a fixed connection, or a detachable connection, or an integral connection; can be a mechanical connection; can be a direct connection, or an indirect connection via an intermediate medium; can be a communication between two elements. Those of ordinary skill in the art will appreciate that the terminology of the present application used herein is to be interpreted in the expansive form, consistent with the context of this application.

[0045] The subsequent description of the specification is a preferred embodiment of the present application, however, the above description is for the purpose of illustrating the general principles of the present application, and is not intended to limit the scope of the present application. The scope of protection of the present application is defined by the appended claims.

[0046] The term "slurry" refers to a stable suspension state of material formed by mixing and dispersing powder and liquid. Powder refers to material in the form of powder, and liquid refers to material in the form of liquid.

[0047] The term "dispersion" refers to the process of breaking down the particle agglomerates in the slurry to form a stable solid-liquid suspension system.

[0048] The term "linear velocity" refers to the velocity of a point on an object in circular motion about a fixed axis. For example, for a circulating pulp preparation device, the linear velocity of the rotor refers to the velocity of any point on the surface of the rotor relative to the center of the circle. Its magnitude does not change, but its direction changes all the time, always in the tangential direction (perpendicular to the line connecting the point to the center of the circle).

[0049] The term "gap volume" refers to the maximum volume of fluid that can be filled in the gap.

[0050] The term "gap flow" refers to the speed of fluid passing through a pipe or pore.

[0051] The term "effective volume" refers to the volume within a container that can effectively store fluid. For example, the effective volume of a circulation tank refers to the actual volume of slurry that can be contained within the circulation tank.

[0052] The following description is provided as an enabling teaching of the preferred embodiments of the application. Those skilled in the relevant arts will recognize that some of the examples described herein have specific implementations that, while preferred, are by no means the only way to implement the present application. The description is intended to cover any and all modifications and alternatives of the present application.

[0053] Reference will now be made to the drawings, wherein Figure 1 , Figure 1 is a cross-sectional view of a circulating pulping apparatus 1000 provided by the first embodiment of the present application. The circulating pulping apparatus 1000 includes a circulation tank 100 and a dispersing mechanism 300. The dispersing mechanism 300 is disposed within the circulation tank 100 and is used to disperse slurry. In this way, on the one hand, the dispersing mechanism 300 shearingly disperses the slurry, and the slurry thrown by the dispersing mechanism 300 flows toward the sidewall of the circulation tank 100 and then flows upward along the sidewall of the circulation tank 100, forming a circulating flow path, which improves the dispersing capacity and circulating capacity of the circulating pulping apparatus 1000. On the other hand, the slurry circulates within the single circulation tank 100 through the dispersing mechanism 300, eliminating the need for a circulation pipeline and a circulation pump, and reducing the flow resistance of the slurry, which meets the requirements of large-flow circulating pulping.

[0054] Illustratively, in the present embodiment, the circulation tank 100 is provided with a circulation cavity 101. The circulation cavity 101 is used to contain slurry. The dispersing mechanism 300 is disposed at the bottom of the circulation tank 100 and within the circulation cavity 101, which facilitates the assembly of the dispersing mechanism 300, improves the stability and reliability of the connection between the dispersing mechanism 300 and the circulation tank 100, and improves the stability and reliability of the dispersing mechanism 300 during dispersing work. Of course, in some embodiments, the dispersing mechanism 300 can also be disposed at other positions of the circulation tank 100, such as the middle portion of the circulation tank 100.

[0055] In the embodiment, the central axis of the dispersion mechanism 300 is coaxially arranged with the central axis P of the circulating tank 100, so that the slurry keeps a relatively stable circulating track during the dispersion by the dispersion mechanism 300, thereby realizing uniform stirring of the slurry by the dispersion mechanism 300, reducing the energy consumption of the dispersion mechanism 300, reducing the production cost, and making the dispersion mechanism 300 occupy a smaller space of the circulating tank 100, and improving the structural compactness. Of course, in some embodiments, the central axis of the dispersion mechanism 300 is spaced apart from the central axis P of the circulating tank 100 by a preset distance, so that when the dispersion mechanism 300 is working, the slurry forms slurry flow layers with different speeds due to the radially asymmetric distribution, reduces the formation of large particle agglomerates, avoids the impact on the parts of the circulating pulp preparation equipment 1000, reduces the vibration and noise, and improves the mixing effect and dispersion effect of the slurry. The preset distance can be set according to the actual situation, and the embodiment of the application is not limited specifically.

[0056] The slurry can be a battery slurry. The battery slurry is a solid-liquid mixture. The battery slurry includes various materials, such as but not limited to solvents, conductive agents, liquid materials or powder materials, etc., and various materials are mixed to form the battery slurry. The powder material includes but is not limited to active material, conductive agent powder, binder powder, etc. The liquid material includes but is not limited to conductive agent solution, binder solution, etc. The liquid material can also include a liquid after mixing of the powder material and the liquid material. In the embodiment, the slurry is illustrated as a battery slurry, and it can be understood that the dispersion mechanism 300 can also be used to disperse other slurries, such as food, medicine, fertilizer, building materials, etc., and the application of the dispersion mechanism 300 is not limited herein.

[0057] In the embodiment, the circulating tank 100 includes a tank body 110 and a tank cover 120 connected with the tank body 110. The tank body 110 and the tank cover 120 are detachably connected, thereby facilitating assembly, maintenance, tilting, etc. of the parts of the circulating pulp preparation equipment 1000. Specifically, the dispersion mechanism 300 is arranged at the bottom of the tank body 110 away from the tank cover 120. In this way, the assembly of the dispersion mechanism 300 and the circulating tank 100 is facilitated, the layout is reasonable, the structure is compact, and the cleaning and maintenance, etc. of the parts of the circulating pulp preparation equipment 1000 are facilitated.

[0058] It can be understood that when the circulating pulping equipment 1000 is used for pulping, liquid material can be added into the circulating tank 100 first, and then the powder material is added after being pre-dispersed by the dispersion mechanism 300, so as to improve the wetting effect of the liquid material on the powder material and improve the dispersion and mixing effect of the dispersion mechanism 300; or the liquid material can be added into the circulating tank 100 first, and then the powder material is added, and the dispersion mechanism 300 is started to work after the powder material and the liquid material are added, so as to realize the reciprocating movement of the slurry in the circulating tank 100. The circulating tank 100 is provided with a discharge pipeline 103, so as to realize the discharge of the slurry. Optionally, the discharge pipeline 103 is arranged at the bottom of the circulating tank 100. The discharge pipeline 103 is arranged to be inclined downward relative to the central axis P of the circulating tank 100, so as to improve the discharge effect.

[0059] In some embodiments, the circulating pulping equipment 1000 further comprises a powder material conveying mechanism. The powder material conveying mechanism can be arranged on the tank cover 120 or on the tank body 110. The powder material conveying mechanism can include but is not limited to a feeding screw or a rotary valve, so as to realize uniform feeding of the powder material conveying mechanism and improve the uniformity of slurry stirring. Of course, in some embodiments, a powder scattering mechanism is arranged on the transmission path of the powder material conveying mechanism, so as to improve the wetting effect of the liquid material on the powder material, reduce the wear of the dispersion mechanism 300, and improve the dispersion efficiency of the dispersion mechanism 300.

[0060] The circulating pulping equipment 1000 further comprises a liquid material conveying mechanism. The liquid material conveying mechanism is arranged on the tank cover or the tank body. Optionally, a guide mechanism is arranged on the transmission path of the liquid material conveying mechanism. The guide mechanism is used to guide the liquid material to a specified position of the circulating tank 100, for example, the liquid material can be guided to the vicinity of the dispersion mechanism 300 by the guide mechanism, and the liquid material dispersed by the dispersion mechanism 300 is in contact with the powder material for wetting, so as to improve the dispersion effect.

[0061] It should be noted that, Figure 1 The purpose is only to schematically describe the arrangement mode between the circulating tank 100 and the dispersion mechanism 300, and not to make specific limitations on the connection position, connection relationship and specific structure of each element. Figure 1 The structure of the circulating pulping equipment 1000 is only schematically shown in the embodiments of the present application, and does not constitute a specific limitation on the circulating pulping equipment 1000. In other embodiments of the present application, the circulating pulping equipment 1000 can include more or fewer components than Figure 1 shown, or combine certain components, or different components, for example, the circulating pulping equipment 1000 can further include but is not limited to a temperature sensor and the like. The temperature sensor is used to detect the temperature of the slurry in the circulating tank 100.

[0062] For the accuracy of description, all the directions in this paper are in the direction of the arrow Figure 1For reference, the "axial direction X" refers to a direction parallel to the central axis P of the circulation tank 100, i.e., a left-right direction (where the positive direction of the X axis is left); the term "radial direction Y" refers to a direction perpendicular to the central axis P of the circulation tank 100, i.e., a radial direction of the cross section of the circulation tank 100, which is also an up-down direction (where the positive direction of the Y axis is up); the term "circumferential direction Z" refers to the circumferential direction of the circulation tank 100, i.e., the direction around the central axis P of the circulation tank 100, wherein the axial direction X, the radial direction Y and the circumferential direction Z together constitute three orthogonal directions of the circulation tank 100. The axial direction X, the radial direction Y and the circumferential direction Z of the circulation tank 100 can be customized according to the specific structure of the product and the perspective of the drawing, which is not specifically limited in the present application. For the convenience of description, the up, down, left, right and the like in the present application are relative positions, and do not constitute a limitation on the implementation.

[0063] Please refer to Figures 1 to 3 , Figure 2 is Figure 1 a structural schematic diagram of a first embodiment of a dispersion mechanism 300 of a circulating pulping equipment 1000 in Figure 3 is Figure 2 an exploded view of the dispersion mechanism 300 in . The dispersion mechanism 300 includes a rotor 10, a stator 30 and a housing 40. The housing 40 is arranged in the circulation tank 100 and is sealingly connected with the circulation tank 100, and the dispersion cavity 402 is arranged in the housing 40. The rotor 10 is rotatably arranged in the dispersion cavity 402 and includes a rotor base 11 and at least one rotor ring 13 arranged on the rotor base 11. The rotor ring 13 is provided with a plurality of first shear grooves 131 along the circumferential direction Z of the dispersion mechanism 300. The stator 30 is fixedly arranged in the dispersion cavity 402, and the stator 30 includes at least one stator ring 33. The stator ring 33 is arranged on the inner side or / and the outer side of the rotor ring 13. The stator ring 33 is provided with a plurality of second shear grooves 331 which are communicated with the plurality of first shear grooves 131 along the circumferential direction Z of the dispersion mechanism 300.

[0064] The dispersion mechanism 300 provided by the embodiment of the utility model, on the one hand, the rotor 10 and the stator 30 are arranged in the dispersion cavity 402 arranged in the shell 40, so that the shell 40 can weaken the impact force of the slurry fluid on the internal parts of the dispersion mechanism 300, and avoid the problem of leakage when the slurry fluid flows through the rotor 10 and the stator 30, reduce the energy loss of the slurry fluid inside the dispersion mechanism 300, improve the circulation ability and dispersion ability of the dispersion mechanism 300, and reduce the direct collision of the solid substances in the slurry fluid with the internal parts of the dispersion mechanism 300, prolong the service life of the dispersion mechanism 300, on the other hand, the rotation of the rotor 10 and the stator 30 produces strong shear force, improves the mixing effect and dispersion effect of the slurry, and produces the effect similar to the centrifugal pump, the centrifugal effect produced by it will make the slurry in the dispersion cavity 402 accelerate to flow to the outside, so that the process of the slurry passing through the rotor ring 13 and the stator ring 33 becomes rapid and easy, thereby improving the discharge capacity of the dispersion mechanism 300.

[0065] The dispersion mechanism 300 further comprises a rotating shaft 21 and a driving piece 22. The rotating shaft 21 is connected with the rotor 10. The driving piece 22 is used for driving the rotor 10 to rotate around the central axis P of the rotating shaft 21, so as to realize the dispersion of the slurry in the circulating tank 100 by the dispersion mechanism 300. The dispersion mechanism 300 further comprises a limiting piece 23. One end of the rotating shaft 21 is connected with the driving piece 22, and the other end of the rotating shaft 21 is connected with the limiting piece 23. The limiting piece 23 is used for limiting the mounting position of the rotor 10 relative to the rotating shaft 21, so as to avoid the vibration and shaking of the rotor 10 relative to the rotating shaft 21, improve the stability of the rotating shaft 21, ensure the stable operation of the dispersion mechanism 300, reduce the wear of the dispersion mechanism 300 by the slurry; and facilitate the assembly of the rotor 10 and the rotating shaft 21. The circulating pulp preparation equipment 1000 further comprises a mounting seat 24. The driving piece 22 is mounted on the circulating tank 100 through the mounting seat 24.

[0066] In some embodiments, the limiting piece 23 comprises a connecting section and a free end which are oppositely arranged along the axial direction X of the circulating pulp preparation equipment 1000. The connecting end of the limiting piece 23 is provided with a connecting shaft 231 which is detachably fixedly connected with the rotating shaft 21. Of course, in some embodiments, the limiting piece 23 and the rotating shaft 21 can also be integrally formed. The free end of the limiting piece 23 is provided with a tapered head 232. In this way, on the one hand, the tapered head 232 can divide the slurry fluid, reduce the resistance of the stirring shaft 51 in the rotating process, reduce the energy consumption, and thereby avoid the problem of reduced flow rate of the slurry fluid caused by flow field interference; on the other hand, the tapered head 232 can buffer and disperse the material, avoiding deformation of the rotating shaft 21 caused by material impact; and on the other hand, the tapered head 232 can also break up the agglomerates in the slurry, ensuring the quality and consistency of the pulp preparation.

[0067] In some embodiments, the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 is greater than or equal to 0.1. It can be understood that when the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 is too small, the linear speed of the rotor 10 is also relatively small, and the shear force that the rotor 10 can generate is small, so that the stirring and mixing effect of the slurry is poor, and the dispersion ability of the dispersion mechanism 300 is insufficient, which easily causes the slurry to deposit at the bottom of the circulating tank 100, so that the ability of the slurry to circulate back and forth is poor, and the product quality of the slurry is reduced. On the other hand, the small diameter of the rotor ring 13 easily causes the risk of blockage of the slurry in the dispersion mechanism 300. The embodiments of the present application ensure that the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 is greater than or equal to 0.1, so as to ensure that the linear speed of the rotor 10 is large, so as to promote the slurry to be fully dispersed, sheared, homogenized and broken in the dispersion mechanism 300, avoid that the dispersion ability of the dispersion mechanism 300 is insufficient, which easily causes the slurry to deposit at the bottom of the circulating tank 100, promote the slurry to move back and forth, reduce the slurry mixing time, and avoid that the diameter of the rotor ring 13 is small, which easily causes the risk of blockage of the slurry in the dispersion mechanism 300, thereby improving the dispersion ability of the dispersion mechanism 300 to the slurry, improving the product quality of the slurry. On the other hand, the slurry can generate a high shear force under the rotation of the rotor 10 with a high linear speed, so as to reduce the viscosity of the slurry, thereby accelerating the transmission speed of the slurry, so that the slurry is more easily flowed, improving the discharge ability of the dispersion mechanism 300, and promoting the slurry to move back and forth. Optionally, in some embodiments, the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 is greater than or equal to 0.2.

[0068] The ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 is less than or equal to 0.9. It can be understood that when the diameter of the outermost rotor ring 13 is too large, the linear speed of the rotor 10 is also relatively large, and the shear force that the rotor 10 can generate is large, but in the process of rotation, not only the energy consumption of the dispersion mechanism 300 is increased, but also the gas-liquid exchange of the slurry is easily caused, which leads to the generation of bubbles, and affects the stirring of the slurry. The embodiments of the present application ensure that the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 is within the range of 0.1 to 0.9, so as to ensure that the linear speed of the rotor 10 is large, so as to promote the slurry to be fully dispersed, sheared, homogenized and broken in the dispersion mechanism 300, reduce the slurry mixing time, and improve the dispersion ability of the dispersion mechanism 300 to the slurry, so that the slurry discharged from the dispersion mechanism 300 has an upward trend, which increases the dispersion of the slurry and makes the slurry not easy to deposit at the bottom of the circulating tank 100, reduces the product energy consumption, avoids the generation of bubbles in the dispersion process of the dispersion mechanism 300, and improves the product quality of the slurry.

[0069] For example, the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 can also be, but is not limited to, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, or 0.8, etc. It should be noted that the ratio of the diameter of the rotor ring 13 located at the outermost side of the rotor base 11 to the inner diameter of the circulating tank 100 can be set according to the size parameters of the circulating tank 100, the volume of the slurry to be dispersed, the viscosity, and other factors. The embodiments of the present application are not limited.

[0070] For example, in the present embodiment, the stator ring 33 located at the outermost side of the stator base 31 is located outside the outermost rotor ring 13. Thus, when the rotor 10 rotates at high speed, the slurry can form a specific flow path in the circulating tank 100 through the guidance of the stator ring 33, better control the slurry flow, and ensure that the slurry can be subjected to stronger hydrodynamic shear, centrifugal extrusion, high-speed cutting, impact, and grinding when passing through the gap between the rotor 10 and the stator 30, thereby improving the dispersion effect and mixing effect of the dispersion mechanism 300. On the other hand, the outermost side of the dispersion mechanism 300 is provided with the stator ring 33, which can reduce mechanical vibration, reduce air flow interference, balance the dynamic load of the rotor 10 during mechanical operation, reduce vibration and noise caused by imbalance, thereby reducing noise, and further reducing the noise generated by the dispersion mechanism 300 during the dispersion of the slurry.

[0071] Of course, in some embodiments, the rotor ring 13 located at the outermost side of the rotor base 11 is located outside the outermost stator ring 33. Thus, the outermost side of the dispersion mechanism 300 is provided with the rotor ring 13, thereby improving the slurry flow rate sprayed by the second shear groove 331 of the outermost stator ring 33, improving the material suction and discharge capacity of the dispersion mechanism 300, promoting the mixing and dispersion of the slurry, improving the dispersion efficiency of the dispersion mechanism 300, and better achieving the reciprocating motion of the slurry in the circulating tank 100.

[0072] Please refer to Figure 3 and Figure 4 , Figure 4 is Figure 2The first embodiment of the cross-sectional view of the dispersion mechanism 300 along the axial direction X of the circulating pulping equipment 1000. The thickness of the rotor ring 13 along the radial direction Y of the circulating pulping equipment 1000 is the first thickness D1, and the thickness of the stator ring 33 along the radial direction Y of the circulating pulping equipment 1000 is the second thickness D2. The shear gap 403 is formed between adjacent rotor rings 13 and stator rings 33. The ratio of the first thickness D1 to the shear gap 403 is greater than or equal to 1.5; and / or, the ratio of the first thickness D1 to the shear gap 403 is less than or equal to 5; and / or, the ratio of the first thickness D1 to the second thickness D2 is greater than or equal to 1.5. It can be understood that when the ratio of the thickness of the rotor ring 13 to the shear gap 403 is relatively large, it indicates that the thickness of the rotor ring 13 is relatively thick, and the shear gap 403 is relatively small, so that the smaller gap can increase the flow speed of the pulp in the dispersion process, thereby improving the dispersion effect and mixing effect of the pulp. When the ratio of the thickness of the stator ring 33 to the shear gap 403 is too large, the space of the shear area of the dispersion mechanism 300 becomes smaller, thereby limiting the range and intensity of the shear force, thereby affecting the uniformity and efficiency of the pulp dispersion; when the ratio of the thickness of the stator ring 33 to the shear gap 403 is relatively small, it indicates that the thickness of the stator ring 33 is relatively thin, and the shear gap 403 is relatively large, so that the friction force experienced by the pulp when passing through this gap will be more intense, thereby helping the solid particles and other powders in the pulp to be better dispersed in the liquid, thereby improving the uniformity of the pulp, and the ratio of the thickness of the stator ring 33 to the shear gap 403 is relatively small. The setting can also improve the shear rate of the dispersion mechanism 300, thereby enhancing the shear force and making the pulp achieve better mixing and dispersion effect. When the ratio of the thickness of the rotor ring 13 to the thickness of the stator ring 33 is relatively large, it indicates that the thickness of the rotor ring 13 is relatively thick compared to the thickness of the stator ring 33, so that the increase in the thickness of the rotor ring 13 enables the rotor 10 to provide greater shear force when rotating, effectively breaking up large particles, agglomerates and other materials in the pulp, thereby improving the dispersion efficiency, and at the same time, increasing the mixing intensity, so that the materials in the pulp are more fully mixed, thereby improving the uniformity of the dispersion. The present application embodiment reasonably sets the ratio of the thickness of the rotor ring 13 along the radial direction Y of the circulating pulping equipment 1000 to the shear gap 403 between adjacent rotor rings 13 and stator rings 33, the ratio of the thickness of the rotor ring 13 along the radial direction Y of the circulating pulping equipment 1000 to the shear gap 403 between adjacent rotor rings 13 and stator rings 33, and the ratio of the thickness of the rotor ring 13 along the radial direction Y of the circulating pulping equipment 1000 to the thickness of the stator ring 33 along the radial direction Y of the circulating pulping equipment 1000, thereby improving the dispersion effect and efficiency of the dispersion mechanism 300 on the pulp, and speeding up the transmission efficiency of the pulp in the dispersion mechanism 300, facilitating the flow of the pulp, improving the suction and discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation of the pulp in the circulating tank 100.

[0073] Optionally, in some embodiments, the ratio of the first thickness D1 to the shear gap 403 is greater than or equal to 3; and / or, the ratio of the second thickness D2 to the shear gap 403 is less than or equal to 2; and / or, the ratio of the first thickness D1 to the second thickness D2 is greater than or equal to 2, thereby further improving the dispersion effect and dispersion efficiency of the dispersion mechanism 300 on the pulp, and improving the reciprocating circulation ability of the pulp in the circulating tank 100.

[0074] In some embodiments, the slotting ratio of the first shear groove 131 is greater than or equal to 0.2. It can be understood that when the slotting ratio of the first shear groove 131 is too small, the contact area between the rotor 10 and the pulp is also reduced, thereby affecting the generation of shear force, and the shear efficiency and dispersion uniformity of the dispersion mechanism 300 are poor. The present application sets the slotting ratio of the first shear groove 131 to be greater than or equal to 0.2, which on the one hand can ensure the uniform distribution of shear force, avoid the phenomenon of destroying the structure of each material in the pulp, and at the same time enhance the shear strength of the rotor ring 13, promote the uniform dispersion of the pulp, and thereby improve the shear efficiency and dispersion uniformity of the dispersion mechanism 300.

[0075] It should be noted that the term "slotting ratio" refers to the ratio of the slotting length of the product to the length of the product along the length direction of the product. For example, in the present embodiment, the slotting ratio of the first shear groove 131 of the stator ring 33 refers to the ratio of the sum of the width dimensions of all the first shear grooves 131 along the circumferential direction Z of the circulating pulp preparation equipment 1000 to the circumference of the stator ring 33 along the circumferential direction Z of the circulating pulp preparation equipment 1000.

[0076] In some embodiments, the slotting ratio of the first shear groove 131 is less than or equal to 0.8. It can be understood that when the slotting ratio of the first shear groove 131 is too large, the contact area between the rotor 10 and the pulp is also increased, thereby enhancing the shear strength of the rotor ring 13, but the slotting ratio of the rotor 10 groove is too large, which can easily lead to uneven distribution of shear force, and some areas may damage the structure of each material in the pulp due to excessive shear force, while other areas may not achieve the ideal dispersion effect due to insufficient shear force, and at the same time, the rotor 10 needs more energy to overcome the larger shear resistance, thereby increasing the energy consumption and maintenance cost of the dispersion mechanism 300. The present application sets the slotting ratio of the first shear groove 131 to be between 0.2 and 0.8, which on the one hand improves the shear efficiency and dispersion uniformity of the dispersion mechanism 300, while reducing the energy consumption and maintenance cost of the dispersion mechanism 300; on the other hand, the pulp can effectively reduce the viscosity of the pulp under the action of the relatively high shear force, thereby accelerating the transmission speed of the pulp, and thereby making the pulp flow more easily, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation movement of the pulp.

[0077] For example, the first shear groove 131 can have a groove ratio of 0.3, 0.4, 0.5, 0.6, 0.7, or the like, but is not limited thereto. It should be noted that the groove ratio of the first shear groove 131 can be set according to the size parameters of the circulating tank 100, the volume of the slurry to be dispersed, the viscosity, and the like, and the embodiments of the present application are not limited in this regard.

[0078] In the present embodiment, the first shear groove 131 and the second shear groove 331 are configured as closed-loop grooves. In some embodiments, the first shear groove 131 and the second shear groove 331 can also be configured as open-loop grooves. The first shear groove 131 is provided with a first rounded corner 132 at the corner thereof, and the second shear groove 331 is provided with a second rounded corner 332 at the corner thereof. In this way, the structural strength of the rotor ring 13 and the stator ring 33 is improved, stress concentration is prevented, the service life is prolonged, and the aesthetic appearance is improved.

[0079] In some embodiments, in the radial direction Y of the circulating pulp preparation device 1000, a shear gap 403 is formed between adjacent rotor rings 13 and stator rings 33, and the shear gap 403 is less than or equal to 5 mm. It can be understood that when the shear gap 403 is too large, the range and strength of the shear force will be correspondingly weakened, thereby reducing the time and strength of the shear force acting on the slurry, resulting in a decrease in the shearing and dispersing effect on the slurry. The embodiments of the present application set the shear gap 403 to be less than or equal to 5 mm, so that the shear gap 403 is small, which promotes the materials in the slurry to be subjected to sufficient shear force and pressure to effectively break and disperse, thereby improving the dispersion uniformity of the slurry, improving the dispersion efficiency and dispersion effect of the dispersion mechanism 300 on the slurry, and at the same time, the slurry can effectively reduce the viscosity of the slurry under high shear force and pressure, thereby accelerating the transmission speed of the slurry, thereby making the slurry flow more easily, improving the discharge capacity of the dispersion mechanism 300, and promoting the slurry to move in a reciprocating circulation manner.

[0080] Alternatively, the shear gap 403 is less than or equal to 2 mm, so that when the slurry passes through the narrow shear gap 403, it will be subjected to greater shear force, friction force, and impact force, promoting the particles in the slurry to break, aggregate, and depolymerize, and increasing the contact area and contact time of the slurry with the surface of the dispersion mechanism 300, thereby improving the shearing and dispersing degree of the slurry. It should be noted that the shear gap 403 can be set according to the size parameters of the circulating tank 100, the volume of the slurry to be dispersed, the viscosity, and the like, and the embodiments of the present application are not limited in this regard. For example, the shear gap 403 can also be less than or equal to 4 mm, 3 mm, or 1 mm, or the like.

[0081] In some embodiments, in the radial direction Y of the circulating pulping device 1000, a shearing gap 403 is formed between adjacent rotor ring 13 and stator ring 33, and the ratio of the volume of the shearing gap 403 to the circulating flow of the shearing gap 403 is greater than or equal to 1ms. Understandably, when the ratio of the volume of the shearing gap 403 to the circulating flow of the shearing gap 403 is small, the shearing effect generated by the dispersion mechanism 300 can not be strong enough, which can lead to uneven dispersion of the pulp, and easy aggregation or precipitation of particles. The embodiments of the present application set the ratio of the volume of the shearing gap 403 to the circulating flow of the shearing gap 403 to be greater than or equal to 1ms, so that the shearing effect generated by the dispersion mechanism 300 is more concentrated, thereby providing greater shearing force to the pulp, which helps the particles or solids in the pulp to be better dispersed in the liquid, prevents the phenomenon of particle aggregation or precipitation of the pulp, and improves the overall uniformity and stability of the pulp. At the same time, it improves the discharge capacity of the dispersion mechanism 300 and promotes the reciprocating circulation of the pulp. Optionally, the ratio of the volume of the shearing gap 403 to the circulating flow of the shearing gap 403 is greater than or equal to 10ms.

[0082] Of course, in some embodiments, the ratio of the volume of the shearing gap 403 to the circulating flow of the shearing gap 403 can be set according to the size parameters of the circulating tank 100, the volume of the pulp to be dispersed, the viscosity and other factors, which are not limited in the embodiments of the present application. For example, the ratio of the volume of the shearing gap 403 to the circulating flow of the shearing gap 403 can also be greater than or equal to 3ms, 5ms, 7ms, 9ms, 11ms, 13ms, 15ms or 17ms, etc., which are not limited in the embodiments of the present application.

[0083] In some embodiments, the linear speed of the rotor 10 is 10 m / s-30 m / s. It can be understood that when the linear speed of the rotor 10 is too large, the particles in the slurry can be subjected to excessive shear force, which can damage the structure of the particles, resulting in too small particle size, thereby affecting the dispersion stability of the slurry, and at the same time, causing greater wear to the dispersion mechanism 300, increasing the energy consumption of the equipment, and reducing the energy efficiency ratio. When the linear speed of the rotor 10 is too small, the shear force experienced by the slurry in the gap between the stator 30 and the rotor 10 is small, which can result in insufficient dispersion of the materials in the slurry, thereby affecting the uniformity and stability of the slurry, and affecting the transmission speed of the slurry in the dispersion mechanism 300. The embodiments of the present application set the linear speed of the rotor 10 to be 10 m / s-30 m / s, so that the rotor 10 can provide appropriate rotational speed, ensuring that the shear force generated by the rotor 10 can break the large particles in the slurry into small particles, achieving fine dispersion of the slurry, thereby improving the dispersion efficiency and dispersion uniformity of the slurry by the dispersion mechanism 300, improving the quality of the slurry, and at the same time, reducing the wear and energy consumption of the dispersion mechanism 300. On the other hand, the slurry can effectively reduce the viscosity of the slurry under high shear force, thereby speeding up the transmission speed of the slurry, and thus making the slurry flow more easily, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation of the slurry.

[0084] Of course, in some embodiments, the linear speed of the rotor 10 can be set according to the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and other factors, which are not limited in the embodiments of the present application. For example, the linear speed of the rotor 10 can be greater than or equal to 10 m / s, 15 m / s, 20 m / s, 25 m / s, or 30 m / s, etc., which are not limited in the embodiments of the present application.

[0085] In some embodiments, the ratio of the effective volume of the circulation tank 100 to the circulation flow rate of the circulation tank 100 is less than or equal to 2 min. It can be understood that when the ratio of the effective volume of the circulation tank 100 to the circulation flow rate of the circulation tank 100 is too large, the slurry stays in the circulation tank 100 for too long, allowing the components in the slurry to have time to settle and separate unnecessarily, thereby affecting the uniformity of the slurry and reducing the production efficiency. The ratio of the effective volume of the circulation tank 100 to the circulation flow rate of the circulation tank 100 is less than or equal to 2 min, thereby increasing the circulation speed of the slurry in the circulation tank 100, reducing the problems of sedimentation, stratification, and agglomeration of the slurry caused by long residence time, improving the uniformity of the slurry, and improving the production efficiency of the slurry. Alternatively, the ratio of the effective volume of the circulation tank 100 to the circulation flow rate of the circulation tank 100 is less than or equal to 1 min.

[0086] It should be noted that the effective volume of the circulation tank 100 refers to the maximum volume of the slurry that the circulation tank 100 can accommodate in a normal working state. The circulation flow of the circulation tank 100 refers to the volume of fluid flowing through the circulation tank 100 per unit time during the circulation process. The ratio of the effective volume of the circulation tank 100 to the circulation flow of the circulation tank 100 is merely for illustration, and can be set according to factors such as the viscosity and volatility of the slurry to be dispersed, and the present embodiment is not limited in particular.

[0087] The included angle formed by the slotting direction of the first shear groove 131 and the rotation direction F of the rotor 10 is a first included angle, and is denoted as a, and the included angle formed by the slotting direction of the second shear groove 331 and the rotation direction F of the rotor 10 is a second included angle, and is denoted as β, wherein 90°≤a<180°, 0°<β≤90°. Thus, when the slotting direction of the first shear groove 131 is opposite to the rotation direction F of the rotor 10, and the slotting direction of the second shear groove 331 is the same as the rotation direction F of the rotor 10, the flow path of the slurry in the first shear groove 131 changes, which enables the rotor 10 to generate stronger shear force and turbulence, thereby facilitating the dispersion and mixing of each material in the slurry. On the other hand, when the slotting direction of the first shear groove 131 is opposite to the slotting direction of the second shear groove 331, the kinetic energy loss of the slurry when passing through the stator ring 33 and the rotor ring 13 is reduced. On the other hand, when the slotting direction of the first shear groove 131 and the slotting direction of the second shear groove 331 are the same, the motion of the rotor 10 and the stator 30 can be better matched, forming more effective shear force, thereby promoting the dispersion and mixing of particles.

[0088] Alternatively, 110°≤a≤160°, 20°≤β≤70°. Based on the setting that the inclination directions of the first shear groove 131 and the second shear groove 331 are opposite, on the one hand, the shear effect of the slurry during high-speed rotation is increased, thereby effectively breaking the aggregation between particles and promoting more uniform dispersion. On the other hand, the distribution of the flow field is improved, avoiding uneven phenomena of the slurry during the dispersion process, and ensuring that each particle can be effectively dispersed. On the other hand, the shear dispersion degree of the slurry is improved, the dispersion time is reduced, and the pulping efficiency is improved. On the other hand, after the slurry is dispersed in the shear area between the stator ring 33 and the rotor ring 13, it still has sufficient kinetic energy to be discharged by centrifugation, without the need to increase the discharge blade for working on the slurry outside the outermost stator ring 33, thereby greatly reducing the disturbance to the fluid in the discharge area, enabling the slurry pressure in the discharge area to remain uniform and stable, and the fluid to be discharged at a stable flow rate, eliminating vibration and noise caused by pulsation.

[0089] Of course, in some embodiments, please refer to Figure 3 and Figure 5 , Figure 5 is Figure 2FIG. 3 is a cross-sectional view of the dispersion mechanism 300 along the radial direction Y of the circulating pulping device 1000 according to a second embodiment. As shown in FIG. 3, in the second embodiment, the first shearing groove 131 and the second shearing groove 331 can also be inclined relative to the radial direction Y of the dispersion mechanism 300, and the first shearing groove 131 and the second shearing groove 331 can also be inclined relative to the rotational direction F of the rotor 10. The present application does not make specific limitations on the inclination of the first shearing groove 131 and the second shearing groove 331. Figure 5

[0090] In some embodiments, the stator 30 is configured as a metal structure as a whole. The metal structure includes, but is not limited to, carbon steel, stainless steel, metal alloy, etc. Stainless steel has good corrosion resistance and high-temperature resistance. Carbon steel has low cost and good mechanical properties. Metal alloy has good wear resistance and corrosion resistance.

[0091] In other embodiments, the stator 30 can also be configured as a plastic structure as a whole, or the stator 30 is configured as a metal structure, and the surface of the stator 30 is coated with a plastic structure. On the one hand, plastic material has low cost, which reduces the cost. On the other hand, the plastic structure can be deformed under the action of external force, which increases the relative contact area between the pulp and the stator 30 and improves the shearing effect.

[0092] When the stator 30 is configured as a plastic structure as a whole or the surface of the stator 30 is coated with a plastic structure, the first included angle α is in the range of 85 degrees to 95 degrees, i.e., 85°≤α≤95°, and the second included angle β is also in the range of 85 degrees to 95 degrees, i.e., 85°≤β≤95°. It can be understood that when the first shearing groove 131 and the second shearing groove 331 are inclined relative to the radial direction Y of the dispersion mechanism 300, the sharp corners generated by the edges of the first shearing groove 131 and the second shearing groove 331 are prone to deformation, which affects the shearing and dispersion effect. The embodiments of the present application set appropriate first and second included angles to make the sharp corners generated by the edges of the first shearing groove 131 and the second shearing groove 331 be approximately right angles, thereby avoiding the deformation of the edges of the first shearing groove 131 and the second shearing groove 331 and improving the shearing effect and efficiency of the stator 30 and the rotor 10. Alternatively, in some embodiments, α=90° and β=90°.

[0093] ​Exemplarily, in the embodiment, the rotor ring 13 is provided as one, and the stator ring 33 is provided as two. The rotor ring 13 is arranged between the two stator rings 33. In this way, on the one hand, based on arranging the rotor ring 13 between the two stator rings 33, the slurry can form a better circulation and turbulent flow region in the circulating tank, thereby improving the dispersion efficiency; on the other hand, the stator ring 33 can optimize the flow path and speed distribution of the slurry fluid, so that the slurry fluid is more uniform during dispersion, reduces the phenomenon of slurry spinning caused by uneven speed, reduces the depth of the vortex, and improves the circulation effect of the slurry; on the other hand, the overall structure of the rotor 10 and the stator 30 is simplified, and shear force and impact force are generated through the interaction of the rotor 10 and the stator 30, thereby realizing the dispersion and mixing of the slurry.

[0094] Of course, in some embodiments, the rotor ring 13 is provided as two, and the stator ring 33 is provided as three. Along the radial direction Y of the dispersion mechanism 300, each rotor ring 13 is arranged between the adjacent two stator rings 33. In this way, on the one hand, based on arranging a proper number of rotor rings 13 and stator rings 33, stronger shear force and larger impact area can be provided, the range of action of shear force and friction is increased, more efficient dispersion and mixing of the slurry are realized, and the dispersion effect and dispersion efficiency of the dispersion mechanism 300 are improved, and the quality of the slurry is improved; on the other hand, based on arranging each rotor ring 13 between the adjacent two stator rings 33, the flow path and speed distribution of the slurry fluid can be optimized, so that the fluid is more uniform during dispersion, the phenomenon of slurry spinning caused by uneven speed is reduced, the depth of the vortex is reduced, and the circulation effect of the slurry is improved.

[0095] It should be noted that the number of rotor rings 13 and the number of stator rings 33 are only for illustration, and the number of rotor rings 13 and the number of stator rings 33 can be set according to the size parameters of the circulating tank 100, the volume of the slurry to be dispersed, the viscosity, and other factors, and the embodiments of the application are not limited. For example, in some embodiments, the rotor ring 13 and the stator ring 33 are each provided as one. The stator ring 33 can be arranged outside the rotor ring 13; or the stator ring 33 can also be arranged inside the rotor ring 13.

[0096] The rotor rings 13 are arranged in multiple numbers, and the first shear grooves 131 of two adjacent rotor rings 13 are arranged in staggered manner along the radial direction Y of the circulating pulping device 1000; and / or the stator rings 33 are arranged in multiple numbers, and the second shear grooves 331 of two adjacent stator rings 33 are arranged in staggered manner along the radial direction Y of the circulating pulping device 1000. Thus, due to the staggered arrangement of the first shear grooves 131 of two adjacent rotor rings 13 or the second shear grooves 331 of two adjacent stator rings 33, on the one hand, the shear dead zone is reduced, the pulp in the entire shear flow passage of the dispersion mechanism 300 can be effectively sheared, and the dispersion uniformity of the pulp is improved; on the other hand, when the fluid flows between the stator 30 and the rotor 10, it is subjected to high shear, is broken and dispersed, and continuously redistributes, prolongs the shear path, effectively increases the shear area, thereby enhancing the shear degree, and further improving the shear dispersion effect.

[0097] In the present embodiment, the stator rings 33 are arranged in multiple numbers, and the thicknesses of the multiple stator rings 33 gradually increase from inside to outside. Thus, on the one hand, due to the gradually increasing centrifugal force of the rotor 10 on the pulp during high-speed rotation from inside to outside, the present application gradually increases the thicknesses of the multiple stator rings 33 from inside to outside, so that the structural strength of the stator rings 33 gradually increases from inside to outside, preventing the deformation of the stator rings 33 on the outside, and improving the shear effect and dispersion effect of the dispersion mechanism 300.

[0098] The rotor rings 13 and the stator rings 33 are arranged in an equal interval alternating manner along the radial direction Y of the dispersion mechanism 300; the width of the first shear groove 131 in the circumferential direction Z of the dispersion mechanism 300 is greater than or equal to the width of the second shear groove 331 in the circumferential direction Z of the dispersion mechanism 300. Thus, on the one hand, based on the equal interval alternating arrangement of the rotor rings 13 and the stator rings 33, the shear gap 403 is kept consistent, so that the shear force on the pulp during dispersion is uniform, the pulp can be more uniformly dispersed in the dispersion mechanism 300, the uneven phenomenon of the pulp during dispersion is reduced, and thus the quality of the pulp is improved, and the relative area between the rotor rings 13 and the stator rings 33 is large, the relative shear volume is improved, and the dispersion effect of the dispersion mechanism 300 is improved; on the other hand, based on the width of the first shear groove 131 in the circumferential direction Z of the dispersion mechanism 300 being equal to the width of the second shear groove 331 in the circumferential direction Z of the dispersion mechanism 300, the shear force and friction force on the pulp when passing through the first shear groove 131 and the second shear groove 331 are relatively uniform, the uneven phenomenon of the pulp during dispersion is reduced, and thus the quality of the pulp is improved; when the width of the first shear groove 131 in the circumferential direction Z of the dispersion mechanism 300 is greater than the width of the second shear groove 331 in the circumferential direction Z of the dispersion mechanism 300, the excessive shearing of the material by the rotor 10 can be reduced.

[0099] It should be noted that the "equal" description described in the present application can include the case of approximate equality caused by processing errors, measurement errors, etc. For example, the fact that the shear gaps 403 are consistent in the radial direction Y of the dispersion mechanism 300 can include the case where any two shear gaps 403 are the same in the radial direction Y of the dispersion mechanism 300, and also includes the case where any two shear gaps 403 are approximately the same in the radial direction Y of the dispersion mechanism 300. The fact that the width of the first shear groove 131 is equal to the width of the second shear groove 331 can also include the case where the width of the first shear groove 131 is approximately the same as the width of the second shear groove 331.

[0100] Exemplarily, in the present embodiment, the shell 40 comprises a flow guide 41 and a connecting base 45. The flow guide 41 is detachably connected with the connecting base 45 and forms the dispersion cavity 402. The connecting base 45 is sealingly connected with the circulating tank 100. Thus, based on the detachable connection between the flow guide 41 and the connecting base 45. Thus, it is convenient for the assembly, maintenance, maintenance, etc. of the rotor 10 and the stator 30; on the other hand, the flow guide 41 and the connecting base 45 cooperate to form the dispersion cavity 402, thereby producing an effect similar to that of a centrifugal pump, which produces a centrifugal effect that promotes the accelerated flow of the slurry in the dispersion cavity 402 to the outside, so that the process of the slurry passing through the rotor ring 13 and the stator ring 33 becomes rapid and easy, thereby improving the discharge capacity of the dispersion mechanism 300. Of course, in some embodiments, the connecting base 45 can be omitted, i.e. the flow guide 41 can also be connected with the inner wall of the bottom of the circulating tank 100 to form the dispersion cavity 402.

[0101] In some embodiments, the flow guide 41 comprises a mounting plate 411 and a guide sleeve 412. The guide sleeve 412 is fixedly connected with the mounting plate 411, and the inner cavity of the guide sleeve 412 communicates with the dispersion cavity 402. Specifically, the guide sleeve 412 extends and is provided on the side of the edge of the through hole 311 facing away from the stator ring 33. The stator ring 33 is fixedly connected with one end of the mounting plate 411 facing away from the guide sleeve 412. Thus, the inner cavity of the guide sleeve 412 communicates with the through hole 311, so that the guide sleeve 412 can also guide the flow of the slurry, promote the upward and downward movement of the slurry discharged by the dispersion mechanism 300 in the circulating tank 100, improve the circulation capacity of the slurry, and make the stirring and mixing effects of the slurry better.

[0102] The stator 30 further comprises a stator base 31. The stator ring 33 is arranged on the stator base 31. The flow guide 41 is arranged on the side of the stator base 31 away from the stator ring 33. Specifically, the stator base 31 is arranged on the side of the mounting plate 411 away from the guide sleeve 412. The mounting plate 411 and the stator base 31 are arranged independently of each other and are fixedly connected; or the mounting plate 411 and the stator base 31 are integrally formed. The side of the stator base 31 away from the mounting plate 411 is fixedly connected with the stator ring 33 and is provided with a through hole 311 in communication with the plurality of first shear grooves 131 and the inner cavity of the guide sleeve 412. In this way, the alignment assembly of the stator 30 and the flow guide 41 is facilitated, and the machining and manufacturing of each part of the dispersion mechanism 300 are facilitated.

[0103] The stator 30 and the housing 40 are integrally formed; or the stator 30 and the housing 40 are arranged independently of each other and are fixedly connected. Specifically, in this embodiment, the mounting plate 411 and the stator base 31 can be arranged independently of each other and are fixedly connected. Specifically, the edge of the bottom of the guide sleeve 412 is connected with the mounting plate 411, and the side of the mounting plate 411 away from the guide sleeve 412 is fixedly connected with the stator ring 33.

[0104] Specifically, the bottom wall of the mounting plate 411 away from the guide sleeve 412 is provided with a mounting groove 4111 for mounting the stator base 31. In this way, on the one hand, the assembly efficiency and connection reliability between the mounting plate 411 and the stator base 31 are improved; on the other hand, the alignment assembly of the stator 30 and the rotor 10 is facilitated, and the structural compactness of the dispersion mechanism 300 is improved. The mounting plate 411 and the stator base 31 of the stator 30 are fixedly connected together by the locking member 44. Specifically, the flow guide sleeve and the mounting plate 411 are integrally formed. Of course, in some embodiments, the guide sleeve 412 and the mounting plate 411 can be fixedly connected together by locking, welding, bonding and the like. The guide sleeve 412 and the mounting plate 411 can be integrally formed, thereby improving the connection reliability and stability of the guide sleeve 412 and the mounting plate 411, and improving the assembly efficiency of the dispersion mechanism 300. Of course, in some embodiments, the guide sleeve 412 and the mounting plate 411 can be arranged independently of each other and are fixedly connected. Of course, in some embodiments, the mounting plate 411 and the stator base 31 can also be integrally formed.

[0105] In the embodiment, the bottom of the outer side wall of the guide sleeve 412 is provided with a guide surface 4121. The guide surface 4121 is connected with the outer side wall of the guide sleeve 412 and the top wall of the mounting plate 411 away from the stator ring 33. The guide surface 4121 is obliquely arranged relative to the central axis P of the guide sleeve 412 and is configured as a plane or a curved surface. In this way, on the one hand, the guide surface 4121 can guide the flow of the slurry fluid, facilitate the smooth flow of the slurry at the corner of the guide sleeve 412 and the stator base 31 or the mounting plate 411, improve the transmission capacity of the slurry, reduce the flow resistance, avoid the generation of dead angles to cause the residue of the slurry, and improve the circulation capacity of the slurry.

[0106] In some embodiments, the mounting plate 411 can be omitted, and the guide sleeve 412 is directly fixedly connected with the stator base 31. The guide surface 4121 is connected with the outer side wall of the guide sleeve 412 and the top wall of the stator base 31 away from the stator ring 33. In this way, on the one hand, the guide surface 4121 can guide the flow of the slurry fluid, facilitate the smooth flow of the slurry at the corner of the guide sleeve 412 and the stator base 31 or the mounting plate 411, improve the transmission capacity of the slurry, reduce the flow resistance, avoid the generation of dead angles to cause the residue of the slurry, and improve the circulation capacity of the slurry. Specifically, the guide sleeve 412 is arcuately connected with the stator base 31 or the mounting plate 411. In this way, the stress concentration at the corner of the guide sleeve 412 and the stator base 31 or the mounting plate 411 can be reduced, the connection strength of the guide sleeve 412 and the stator base 31 or the mounting plate 411 is improved; on the other hand, the corner formed by the connection of the guide sleeve 412 and the stator base 31 is prevented from colliding with the internal parts of the dispersion mechanism 300, and the stability and reliability of the operation of the dispersion mechanism 300 are improved.

[0107] In some embodiments, the end surface of the guide sleeve 412 away from the stator base 31 is provided with a reinforcing structure 413. The reinforcing structure 413 is configured as an arc-shaped chamfer or an arc-shaped hem. In this way, on the one hand, the arc-shaped chamfer or the arc-shaped hem can reduce the stress concentration, reduce the force of the fluid slurry on the guide sleeve 412, and improve the reliability and stability of the connection of the stator 30 and the circulating tank 100; on the other hand, the arc-shaped chamfer or the arc-shaped hem can also reduce the flow resistance of the slurry, reduce the energy loss of the slurry, improve the transmission efficiency of the slurry, and promote the reciprocating circulation movement of the slurry.

[0108] In the embodiment, the free end of the guide sleeve 412 is provided with an arc-shaped chamfer. Specifically, the surface of the reinforcing structure 413 is configured as an arc-shaped surface protruding outward relative to the guide sleeve 412. The reinforcing structure 413 includes a first arc surface 4131 and a second arc surface 4132 along an axial section parallel to the axial direction X of the circulating pulping device 1000, and the first arc surface 4131 and the second arc surface 4132 are smoothly connected, so that the pulp can be quickly guided along the first arc surface 4131 to the outside of the inner cavity of the guide sleeve 412, and can be quickly guided along the second arc surface 4132 to the inner cavity of the guide sleeve 412.

[0109] In some embodiments, the dispersion mechanism 300 further includes an impeller 12. The impeller 12 is arranged on the rotor base 11, and the rotor ring 13 is arranged around the impeller 12. The impeller 12 is exposed at the through hole 311. Thus, the impeller 12 can quickly suck the pulp above the dispersion mechanism 300 into the dispersion mechanism 300 and deliver the pulp to the stator ring 33 and the rotor ring 13 for shearing dispersion, so as to realize the flow of the pulp thrown out of the dispersion mechanism 300 along the side wall of the circulating tank 100, and then flow upward along the side wall of the circulating tank 100, forming a circulating flow path, improving the dispersion capacity and circulating capacity of the circulating pulping device 1000. On the other hand, the arrangement of the impeller 12 can reduce the energy loss of the pulp, improve the discharge speed of the pulp in the dispersion mechanism, thereby improving the flow efficiency and flow output of the pulp, improving the circulating capacity of the pulp, and achieving better stirring and mixing effects of the pulp.

[0110] For example, in the embodiment, the top of the impeller 12 extends into the inner cavity of the guide sleeve 412. Thus, based on the top of the impeller 12 extending into the inner cavity of the guide sleeve 412, on the one hand, the impeller 12 is prevented from being affected by the flow of the pulp outside the dispersion mechanism 300 when rotating, improving the flow stabilization effect and strengthening the shearing action of the stator ring 33 and the rotor ring 13 on the pulp. On the other hand, the guide sleeve 412 can also prevent the solid substances in the pulp outside the dispersion mechanism 300 from directly colliding with the impeller 12, thereby improving the service life of the impeller 12.

[0111] Of course, in some embodiments, the top of the impeller 12 can also be located outside the inner cavity of the guide sleeve 412. Thus, on the one hand, the guide sleeve 412 can serve as a pulp inlet, and the present embodiment arranges the impeller 12 outside the guide sleeve 412, thereby improving the smoothness of the pulp entering the interior of the dispersion mechanism 300 and improving the suction capacity of the dispersion mechanism 300.

[0112] Exemplarily, in the embodiment, the impeller 12 is configured as a conical structure. In the radial direction Y of the circulating pulping device 1000, the radial dimension of the impeller 12 gradually increases from the suction end to the discharge end. Thus, the pulp can flow from the suction end of the impeller 12 to the discharge end of the impeller 12, and since the radial dimension of the impeller 12 gradually increases from the suction end to the discharge end, the flow rate of the pulp gradually increases while the pressure gradually decreases, thereby reducing the capacity loss. On the other hand, the conical impeller 12 can more effectively convert the kinetic energy of the fluid into pressure energy, thereby improving the suction capacity and discharge capacity of the dispersion mechanism 300. On the other hand, the conical impeller 12 makes the fluid flow more stable, reduces vortex and turbulence, and thus reduces mechanical vibration and fluid dynamic noise.

[0113] The impeller 12 includes a suction end and a discharge end arranged opposite to each other. The impeller 12 includes a base body 121 and blades 122. The base body 121 is fixedly connected with the rotor base 11, and the blades 122 are arranged on the side wall of the base body 121. The blades 122 are configured as cylindrical blades or twisted blades. Thus, on the one hand, when the blades 122 are configured as cylindrical blades, the processing and manufacturing of the impeller 12 are simplified, and cleaning is facilitated. On the other hand, when the blades 122 are configured as twisted blades, the flow characteristics of the pulp can be better adapted, the rotational loss of the pulp fluid passing through the blades 122 is reduced, the conveying efficiency of the pulp is improved, and the twisted blades make the pulp fluid pass through the impeller 12 more uniformly, reducing the impact and extrusion of the pulp fluid, thereby further reducing the vibration and noise of the dispersion mechanism.

[0114] It should be noted that the cylindrical blade refers to a structure in which the surface of the blade 122 is unidirectionally curved, and the cylindrical blade is also called a single-curvature blade. The twisted blade refers to a structure in which the surface of the blade 122 is bidirectionally curved, and the cylindrical blade is also called a spatial curved surface or a double-curvature blade.

[0115] The radial dimension of the impeller 12 at the suction end is smaller than the radial dimension of the impeller 12 at the discharge end. Specifically, in the embodiment, the base body 121 is configured as a truncated cone structure, and the blades 122 are configured as twisted blades. Thus, on the one hand, the pulp can continuously be separated in the three-dimensional space of the impeller 12, the energy loss during the flow of the pulp is reduced, and the conveying efficiency of the impeller 12 for the pulp is improved. On the other hand, cavitation phenomenon is avoided, and noise is reduced. The cross section of the base body 121 in the radial direction Y of the circulating pulping device 1000 gradually increases from the suction end to the discharge end. The side wall of the base body 121 is configured as a curved surface. The meridian flow passage line of the base body 121 from the suction end to the discharge end is a curve that is curved inward with respect to the central axis P of the base body 121. The meridian flow passage line is approximately circular arc-shaped.

[0116] In some embodiments, the radial dimension of the impeller 12 at the suction end is equal to the radial dimension of the impeller 12 at the discharge end. For example, the base 121 is configured as a cylinder, and the blades 122 are configured as cylindrical blades. In this way, the impeller 12 is convenient to manufacture, easy to clean, and improves the stability of the operation of the impeller 12. The cross section of the base 121 along the radial direction Y of the circulating pulping device 1000 is constant from the suction end to the discharge end. The side wall of the base 121 is configured as a cylindrical surface. The meridian flow passage line of the base 121 from the suction end to the discharge end is parallel to the central axis P of the base 121. For another example, the base 121 can also be configured as a truncated cone, and the blades 122 are configured as cylindrical blades.

[0117] In other embodiments, the blades 122 can also be, but are not limited to, straight blades. A straight blade refers to a structure in which the surface of the blade is planar. For example, in some embodiments, the extension direction of the straight blade can be parallel to the central axis of the base 121. In other embodiments, the extension direction of the straight blade can also intersect the central axis of the base 121. In other words, the extension direction of the straight blade can also be arranged at an angle to the central axis of the base 121.

[0118] For example, in the present embodiment, along the radial direction Y of the circulating pulping device 1000, the radial dimension of the impeller 12 and the radial dimension of the guide sleeve 412 gradually increase from the suction end to the discharge end. In this way, on the one hand, the radial dimension of the impeller 12 at the suction end is smaller than the radial dimension of the impeller 12 at the discharge end, which facilitates the conversion of kinetic energy of the pulp into pressure energy, reduces the energy loss of the flow passage, increases the speed of the pulp at the discharge end, and thus improves the flow efficiency and flow output of the pulp; on the other hand, the inner side wall of the free end guide sleeve 412 to which the blades 122 of the impeller 12 are close is arranged, and thus most of the fluid pulp is pressed by the impeller to the stator ring 33 and the rotor ring 13 for shearing and dispersion, which improves the dispersion capacity of the pulp; on the other hand, the guide sleeve 412 is conical or truncated conical, which can expand the dispersion area of the pulp, reduce the kinetic energy of the pulp entering the dispersion machine, and prevent the phenomenon of uneven dispersion or damage to the dispersion mechanism 300 caused by excessive kinetic energy of the pulp when entering the dispersion mechanism; on the other hand, it prevents the corners formed by the connection of the impeller 12 and the guide sleeve 412 with the stator base 31 from colliding, and improves the stability and reliability of the operation of the dispersion mechanism 300. Of course, the diameter of the top of the guide sleeve 412 can also be equal to the diameter of the bottom of the guide sleeve 412, i.e., the diameter of the guide sleeve 412 can remain unchanged from top to bottom (i.e., from the suction end to the discharge end).

[0119] Please refer to Figure 3 , Figure 6 and Figure 7 , Figure 6 is Figure 2 the structure diagram of the rotor 10 of the dispersion mechanism 300 inFigure 7 is Figure 2 A sectional view of the dispersion mechanism 300 along the axial direction X of the circulating pulping device 1000. The rotor ring 13 is arranged on the same side of the rotor base 11 as the impeller 12, so as to facilitate the machining of the rotor 10. Specifically, the rotor ring 13 is arranged around the bottom of the impeller 12, so that the overall structural layout of the stirring mechanism 500 is reasonable and compact.

[0120] In some embodiments, the bottom wall of the rotor base 11 facing away from the impeller 12 is provided with a plurality of auxiliary blades 14. The plurality of auxiliary blades 14 are arranged along the circumferential direction Z of the circulating pulping device 1000 and extend along the radial direction Y of the circulating pulping device 1000. In this way, on the one hand, the plurality of auxiliary blades 14 rotate synchronously with the rotation of the rotating shaft 21, thereby realizing the flow state of the pulp at the bottom of the rotor 10 pushed by the auxiliary blades 14, which can improve the dispersion mixing effect and avoid the pulp at the bottom of the rotor 10 from stagnating, thereby improving the mixing effect of the pulp; on the other hand, the auxiliary blades 14 cooperate with the stator 30 and the circulating tank 100 to produce a centrifugal pump-like effect, which produces a centrifugal effect that accelerates the pulp at the bottom of the rotor ring 13 to flow to the outside, making the process of the pulp passing through the rotor ring 13 become rapid and easy, thereby effectively compensating for the kinetic energy loss caused by the addition of the rotor ring 13.

[0121] In some embodiments, in the projection plane perpendicular to the axial direction X of the circulating pulping device 1000, the extension path of the auxiliary blade 14 is the same as that of the blade 122, thereby facilitating the machining of the rotor 10. Of course, in other embodiments, in the projection plane perpendicular to the axial direction X of the circulating pulping device 1000, the extension path of the auxiliary blade 14 can also be different from that of the blade 122.

[0122] In some embodiments, the dispersion mechanism 300 further comprises a plurality of connecting rods 42. One end of each connecting rod 42 is connected to the stator base 31, and the other end of the connecting rod 42 is connected to the inner wall of the bottom of the circulating tank 100. The plurality of connecting rods 42 are arranged at intervals along the circumferential direction Z of the circulating pulping device 1000 and around the outside of the outermost stator ring 33. Thus, based on the stator base 31 being supported and connected to the circulating tank 100 by the plurality of connecting rods 42, on the one hand, the stator base 31 is arranged above the rotor base 11 so that the stator base 31 can guide the part of the slurry outside the dispersion mechanism 300, facilitating the reciprocating movement of the slurry in the circulating tank 100; on the other hand, the arrangement of the connecting rods 42 better realizes force transmission and distribution, thereby enhancing the stability and load-carrying capacity of the stator 30, improving the reliability and stability of the connection between the stator 30 of the dispersion structure and the circulating tank 100, and reducing noise; and on the other hand, based on the connecting rods 42 being arranged around the outside of the stator ring 33, the shearing effect and flow guiding effect on the slurry are improved, and the overall stability of the dispersion mechanism 300 is enhanced. In this embodiment, the plurality of connecting rods 42 are arranged around the outside of all the stator rings 33.

[0123] In some embodiments, the dispersion mechanism 300 further comprises a plurality of positioning sleeves 43. One end of the positioning sleeve 43 is connected to the stator base 31, and the other end of the positioning sleeve 43 is connected to the inner wall of the bottom of the circulating tank 100. The connecting rod 42 is arranged in the positioning sleeve 43. Thus, on the one hand, the positioning sleeve 43 can axially and circumferentially position the connecting rod 42, improving assembly efficiency and the reliability of the connection between the connecting rod 42 and the circulating tank 100, and avoiding displacement of the stator 30; on the other hand, the arrangement of the positioning sleeve 43 better realizes force transmission and distribution, thereby reducing flow resistance and enhancing the stability and load-carrying capacity of the stator 30, improving the reliability and stability of the connection between the stator 30 of the dispersion structure and the circulating tank 100. In some embodiments, the positioning sleeve 43 can be provided with internal threads, and the connecting rod 42 is provided with external threads that cooperate with the internal threads of the positioning sleeve 43, thereby further improving the reliability and stability of the connection between the stator 30 and the circulating tank 100.

[0124] The connecting rod 42 is independently arranged with the stator base 31 and the circulating tank 100. Specifically, the connecting rod 42 is detachably connected with the stator base 31 or the mounting plate 411. The connecting rod 42 comprises a connecting rod portion 421 and a stop portion 422. The stop portion 422 is arranged at one end of the connecting rod portion 421. The radial dimension of the stop portion 422 is greater than the radial dimension of the connecting rod portion 421, and the stop portion 422 is stopped with the stator base 31 or the mounting plate 411, thereby facilitating the alignment assembly of the connecting rod 42 with the stator base 31 or the mounting plate 411 and avoiding the disconnection of the connecting rod 42 with the stator base 31 or the mounting plate 411.

[0125] Exemplarily, in the embodiment, the stator base 31 is fixed to the circulation tank 100 through the mounting plate 411 and the connecting rods 42. Specifically, the stator base 31 is fixed to the mounting plate 411, and the mounting plate 411 is fixedly connected to the circulation tank 100 through the connecting rods 42, so as to realize the indirect connection between the stator base 31 and the circulation tank 100. Specifically, the connecting rod part 421 of the connecting rod 42 penetrates the mounting plate 411 and is locked to the bottom of the circulation tank 100, the stop part 422 of the connecting rod 42 is exposed relative to the top wall of the mounting plate 411, and is stopped relative to the mounting plate 411.

[0126] Optionally, along the radial direction Y of the circulation tank 100, the distance between the outer edge of the mounting plate 411 and the circulation tank 100 is less than the distance between the stator base 31 and the circulation tank 100. Thus, on the one hand, the mounting plate 411 can play a guiding role for the slurry in the radial direction of the circulation tank 100, so that most of the slurry thrown out by the dispersion mechanism 300 flows towards the inner side wall of the circulation tank 100, and flows along the inner side wall of the circulation tank 100, prolonging the circulation path, avoiding the slurry discharged by the dispersion mechanism 300 from quickly returning to the through hole 311, improving the circulation capacity, and increasing the surface area of the stator 30 in contact with the slurry, thereby improving the dispersion effect and mixing effect of the dispersion mechanism 300 on the slurry. The edge part of the mounting plate 411 away from the guide sleeve 412 is fixed to the circulation tank 100 through the connecting rod 42. Specifically, the connecting rod 42 is connected to the region of the mounting plate 411 corresponding to the stator base 31, so as to avoid the problem of interference between the connecting rod 42 and the locking piece 44, and to avoid prolonging the action on the stator 30.

[0127] Exemplarily, in the embodiment, the plurality of connecting rods 42 are detachably connected to the mounting plate 411. Specifically, the connecting rod 42 penetrates the mounting plate 411 and is locked to the bottom wall of the bottom of the circulation tank 100. The stop part 422 of the connecting rod 42 is stopped relative to the mounting plate 411, so as to facilitate the alignment assembly of the connecting rod 42 and the mounting plate 411, and to avoid the disconnection of the connecting rod 42 and the stator base 31 or the mounting plate 411. Of course, in some embodiments, the plurality of connecting rods 42 can also be detachably connected to the stator base 31, or integrally formed with the stator base 31 or the mounting plate 411.

[0128] In some embodiments, the stator 30 further comprises a locking structure. The connecting rods 42 are locked with the locking structure to achieve the fixed connection of the stator base 31 and the circulating tank 100. Specifically, the connecting rods 42 are provided with threaded holes matched with the locking structure along the axial direction X of the dispersion mechanism 300. The locking structure penetrates the bottom wall of the bottom of the circulating tank 100 and is locked in the threaded holes. In this way, on the one hand, the fixed connection of the stator 30 and the circulating tank 100 is achieved, which is convenient for installation; on the other hand, the connecting rods 42 can increase the length of the screw connection, thereby improving the reliability of the connection of the dispersion structure and the circulating tank 100. Of course, in some embodiments, the connecting rods 42 are configured as bolts, and the locking structure is configured as a nut matched with the bolt to facilitate the assembly of the connecting rods 42 and the circulating tank 100. Specifically, the side wall of the end of the connecting rod 42 away from the stator base 31 or the mounting plate 411 is provided with external threads, and the nut is provided with internal threads matched with the external threads of the connecting rod 42. The end of the connecting rod 42 away from the stator base 31 or the mounting plate 411 penetrates the bottom wall of the bottom of the circulating tank 100 and is screwed and fixed with the locking piece 44. In other embodiments, the inside of the connecting rod 42 is provided with a threaded hole, and the outer wall of the connecting rod 42 is provided with external threads.

[0129] Exemplarily, in the present embodiment, the top end surface of the connecting rod 42 is higher than the top wall of the mounting plate 411. The stop portion 422 of the connecting rod 42 protrudes out of the top wall of the mounting plate 411 and is stopped by the top wall of the mounting plate 411, thereby facilitating the alignment assembly of the connecting rod 42, the mounting plate 411 and the circulating tank 100. When the connecting rod 42 is connected with the stator base 31, the top end surface of the connecting rod 42 is higher than the top wall of the stator base 31. The stop portion 422 of the connecting rod 42 protrudes out of the top wall of the stator base 31 and is stopped by the top wall of the stator base 31.

[0130] In some embodiments, the plurality of connecting rods 42 are located on the side of the stator base 31 or the mounting plate 411 close to the rotor base 11. In this way, on the one hand, the plurality of connecting rods 42 are located on the side of the stator base 31 or the mounting plate 411 close to the rotor base 11, thereby avoiding the problem that the connecting rods 42 protrude above the stator base 31 or the mounting plate 411 to hinder the flow of the slurry, improving the smoothness of the flow of the slurry, promoting the reciprocating circulation movement of the slurry in the circulating tank 100, improving the circulation capacity of the slurry, and improving the dispersion effect and mixing effect of the slurry; on the other hand, the connecting rods 42 are integrally formed with the stator base 31 or the mounting plate 411, which is convenient for installation and improves the stability and reliability of the connection between the connecting rods 42 and the stator base 31 or the mounting plate 411, thereby enhancing the stability of the operation of the dispersion mechanism 300 and reducing noise; the connecting rods 42 can also be integrally formed with the stator base 31 or the mounting plate 411, thereby facilitating the maintenance, replacement and other operations of the connecting rods 42 and the stator base 31 or the mounting plate 411, and facilitating the processing and manufacturing of the connecting rods 42 and the stator base 31 or the mounting plate 411.

[0131] The plurality of connecting rods 42 are connected to the bottom wall of the stator base 31 or the mounting plate 411. The connecting rods 42 can be directly fixed to the bottom wall of the stator base 31 or the mounting plate 411; or, the bottom wall of the stator base 31 or the mounting plate 411 is provided with a connecting hole for fixing the connecting rod 42, wherein the connecting hole is a blind hole. Specifically, the top wall of the stator base 31 or the mounting plate 411 is configured as a continuous flat surface. In this way, on the one hand, the completeness of the top wall of the stator base 31 or the mounting plate 411 is ensured, avoiding the problem of material accumulation at the connection between the stator base 31 or the mounting plate 411 and the connecting rod 42, and facilitating cleaning; on the other hand, the smoothness of the slurry flow is improved, promoting the reciprocating circulation movement of the slurry in the circulating tank 100, improving the circulation capacity of the slurry, and improving the dispersion effect and mixing effect of the slurry.

[0132] Of course, in some embodiments, at least part of the connecting rod 42 is embedded in the stator base 31 or the mounting plate 411, and the top end surface of the connecting rod 42 is connected with the top wall of the stator base 31 or the mounting plate 411 to form a continuous flat surface. For example, the top wall of the stator base 31 or the top wall of the mounting plate 411 is provided with a countersunk hole, and the stop portion 422 of the connecting rod 42 is accommodated in the countersunk hole. In this way, on the one hand, the reliability of the connection between the connecting rod 42 and the stator base 31 or the mounting plate 411 is improved, facilitating positioning and installation; on the other hand, the smoothness of the slurry flow is improved, promoting the reciprocating circulation movement of the slurry in the circulating tank 100, improving the circulation capacity of the slurry, and improving the dispersion effect and mixing effect of the slurry. Of course, in some embodiments, the connecting rod 42 can also be provided protruding relative to the top wall of the stator base 31 or the mounting plate 411.

[0133] The connecting rod portion 421 of the connecting rod 42 can be configured as a cylindrical rod, and the stop portion 422 of the connecting rod 42 can be configured as a prismatic rod. Of course, in some embodiments, the connecting rod 42 can also be configured as a cylindrical rod as a whole. Along the radial direction Y of the circulating pulping device 1000, the connecting rod 42 corresponds to the portion of the stator ring 33 or the rotor ring 13 configured as a cylindrical rod. Specifically, the connecting rod 42 is circular in cross section perpendicular to the axial direction X of the dispersion mechanism 300. In this way, on the one hand, the cylindrical rod can make the force in each direction the same, so that the connecting rod 42 has the maximum bending moment of inertia in each direction of eccentric pressure, improving the stability and reliability of the connection of the stator 30 and the circulating tank 100; on the other hand, it is convenient for processing and manufacturing. Of course, in some embodiments, the connecting rod 42 can be configured as a special-shaped rod. Specifically, the connecting rod 42 is drop-shaped in cross section perpendicular to the axial direction X of the dispersion mechanism 300. In this way, the convex surface of the connecting rod 42 in the shape of a drop can accelerate the flow rate of the pulp, thereby improving the circulating capacity of the dispersion mechanism 300, promoting the reciprocating circulation of the pulp and improving the uniformity of the pulp. Of course, in other embodiments, the connecting rod 42 can also be regular polygonal or other regular or irregular patterns in cross section perpendicular to the axial direction X of the dispersion mechanism 300, which is not limited in the present application. The outer shape of the positioning sleeve 43 is adapted to the outer shape of the connecting rod 42, for example, the positioning sleeve 43 can also be circular or drop-shaped in cross section perpendicular to the axial direction X of the dispersion mechanism 300, which is not described here.

[0134] In some embodiments, the connecting rod 42 is provided with a shearing structure 423. In this way, the shearing structure 423 is used to provide shearing force and dispersing force for the pulp when the rotor 10 rotates relative to the stator 30, thereby improving the dispersion effect of the dispersion mechanism 300, increasing the contact area of the pulp with the dispersion mechanism 300, reducing the pressure exerted by the pulp on the dispersion structure, and improving the service life of the dispersion mechanism 300. The shearing structure 423 can be recessed on the side wall of the connecting rod 42; or can be convex on the side wall of the connecting rod 42. The shearing structure 423 can be provided as one or more. The shearing structure 423 can be configured as, but not limited to, at least one of a convex point, a concave point, a spiral convex ridge, a spiral concave ridge, an annular convex ridge, and an annular concave ridge. The shearing structure 423 is streamlined, thereby reducing the flow resistance of the pulp, improving the flow rate of the pulp, and reducing the pulp residue on the side wall of the connecting rod 42. Exemplarily, in the present embodiment, the shearing structure 423 is provided on the outer side wall of the positioning sleeve 43.

[0135] Optionally, in the embodiment, the shearing structure 423 and the connecting rod 42 are integrated to increase the structural stability of the shearing structure 423 and the connecting rod 42, thereby improving the dispersion stability of the dispersion mechanism 300. Of course, in some embodiments, the shearing structure 423 and the connecting rod 42 are detachably connected, so that the shearing structure 423 can be arranged at different regions of the connecting rod 42 according to actual needs.

[0136] In some embodiments, the connecting rod 42 is provided with a heat dissipation structure. Thus, since the rotor 10 of the dispersion mechanism 300 generates a large amount of heat during high-speed rotation by rubbing with the slurry, the heat dissipation structure can guide the heat of the slurry out of the circulating tank 100, thereby improving the heat dissipation efficiency of the slurry and improving the quality of the slurry. The connecting rod 42 is configured as a whole heat dissipation structure; or the surface of the connecting rod 42 is provided with a heat dissipation structure.

[0137] In some embodiments, the dispersion mechanism 300 further comprises a connecting base 45. The connecting base 45 is sealingly connected with the inner wall of the bottom of the circulating tank 100. The connecting base 45 is arranged opposite to the stator base 31 or the mounting plate 411, and is connected with the stator base 31 or the mounting plate 411 through the connecting rod 42 to form a dispersion cavity 402, and the rotor 10 is rotatably arranged in the dispersion cavity 402. Thus, on the one hand, the stability and reliability of the connection between the stator base 31 and the inner wall of the bottom of the circulating tank 100 are improved; on the other hand, the connecting base 45 and the stator base 31 or the mounting plate 411 can guide the flow of the slurry in the radial direction of the circulating tank 100, so that most of the slurry discharged by the dispersion mechanism 300 flows towards the inner side wall of the circulating tank 100 and flows along the inner side wall of the circulating tank 100, thereby prolonging the circulation path, avoiding the rapid return of the slurry discharged by the dispersion mechanism 300 to the through hole 311, improving the circulation capacity, and improving the dispersion effect and mixing effect of the slurry; on the other hand, the connecting base 45 or the mounting plate 411 and the stator base 31 are connected through the connecting rod 42 to form the dispersion cavity 402, so that most of the slurry in the dispersion cavity 402 is sheared by the stator ring 33 and the rotor ring 13 and then discharged from the dispersion mechanism 300, thereby avoiding the problem that the slurry in the dispersion cavity 402 leaks into the inner cavity of the circulating tank 100 without being sheared by the stator ring 33 and the rotor ring 13, and weakening the impact force of the slurry outside the dispersion mechanism 300 on the internal structure of the dispersion mechanism 300, thereby reducing the energy loss of the fluid in the dispersion mechanism 300 and improving the circulation capacity and dispersion capacity of the dispersion mechanism 300. The connecting base 45 and the mounting base 24 can be integrally formed; or the connecting base 45 and the mounting base 24 are fixedly connected through a locking structure, which is not limited in the embodiments of the present application.

[0138] Please refer again to Figure 1 and Figure 3In the embodiment, the bottom of the circulation tank 100 is provided with a mounting hole 102 for mounting the connecting base 45. Specifically, the edge of the connecting base 45 is sealingly connected to the mounting hole 102. The connecting base 45 can be directly connected to the circulation tank 100, or fixedly connected through a third-party element, which is not limited in the embodiment. The top wall of the connecting base 45 towards the stator base 31 serves as a part of the bottom wall of the circulation tank 100, thereby edge-mounting the dispersion mechanism 300 and the circulation tank 100, and reducing the gap of the slurry between the connecting base 45 and the bottom wall of the circulation tank 100.

[0139] The inner wall of the circulation tank 100 includes a tank top wall 1011, a tank bottom wall 1012, and a tank side wall 1013 connecting the tank top wall 1011 and the tank bottom wall 1012. The tank bottom wall 1012 is obliquely arranged relative to the tank side wall 1013 towards one side of the dispersion mechanism 300, and is smoothly connected to the top wall of the connecting base 45 towards the stator base 31. In this way, on the one hand, the oblique arrangement of the tank bottom wall 1012 is used to guide the slurry to flow upwards along the side wall of the circulation tank 100, thereby improving the circulation capacity of the dispersion mechanism 300; on the other hand, the smooth transition connection of the tank bottom wall 1012 to the top wall of the connecting base 45 towards the stator base 31 avoids the problem of the deposition of part of the slurry at the bottom, thereby affecting the uniformity of the slurry, improves the flowability and continuity of the slurry, promotes the reciprocating circulation of the slurry, and improves the uniformity of the slurry.

[0140] Exemplarily, in the embodiment, the connecting base 45 is provided with a boss portion 451 at the position corresponding to the connection position, and the end of the connecting rod 42 away from the stator base 31 is fixedly connected with the boss portion 451. In this way, the thickness of the connecting base 45 is increased, and the reliability and stability of the connection between the connecting rod 42 and the connecting base 45 are improved. The boss portion 451 is in a closed loop shape. The connecting base 45 is formed with a first flange portion 452 and a second flange portion 453 on the two sides of the boss portion 451, respectively, and the first flange portion 452 and the second flange portion 453 are each sealedly connected with the connecting base 45 and the circulating tank 100 through a sealing member. Optionally, the first flange portion 452 and the second flange portion 453 are provided with a sealing groove 4501 accommodating the sealing member, thereby improving the sealing connection effect between the dispersion mechanism 300 and the circulating tank 100. Of course, in some embodiments, the connecting base 45 can omit the boss portion 451, so that the top wall of the connecting base 45 is flat, facilitating cleaning and reducing residue of the slurry. The first flange portion 452 or the second flange portion 453 can also be omitted, and the structural arrangement of the connecting base 45 can be adjusted according to the actual situation, which is not limited in the present application. The second flange portion 453 is provided with a clearance 4502 at the position corresponding to the discharge pipeline 103, thereby facilitating the avoidance of assembly interference between the connecting base 45 and the circulating tank 100; on the other hand, the clearance 4502 can play a positioning role in the assembly of the connecting base 45. Of course, in some embodiments, the clearance 4502 and the connecting base 45 can be arranged at intervals.

[0141] Please refer to Figure 1 and Figure 2 , in some embodiments, the inner wall of the circulating tank 100 includes a tank top wall 1011, a tank bottom wall 1012, and a tank side wall 1013 connecting the tank top wall 1011 and the tank bottom wall 1012, the tank bottom wall 1012 is arranged obliquely relative to the tank side wall 1013 toward one side of the dispersion mechanism 300, and is smoothly transitionally connected with the top wall of the connecting base 45 toward the stator base 31. In this way, on the one hand, the tank bottom wall 1012 is arranged obliquely, for guiding the slurry to flow upward along the side wall of the circulating tank 100, improving the circulating capacity of the dispersion mechanism 300; on the other hand, the tank bottom wall 1012 is smoothly transitionally connected with the top wall of the connecting base 45 toward the stator base 31, thereby avoiding the problem that part of the slurry is deposited at the bottom to affect the uniformity of the slurry, improving the flowability and continuity of the slurry, promoting the reciprocating circulation of the slurry and improving the uniformity of the slurry.

[0142] Please refer to Figure 4 , Figure 8 and Figure 9 , Figure 8 is Figure 1 a structural schematic view of a second embodiment of the dispersion mechanism 300 of the circulating pulp preparation device 1000 in Figure 9 Figure 8 ​A sectional view of the dispersion mechanism 300 along the axial direction X of the circulating pulping equipment 1000. In some embodiments, the stator 30 further comprises a flow guide plate 414. The flow guide plate 414 is arranged at or near the outer edge of the stator base 31 and is outwardly inclined relative to the stator base 31 away from the side of the stator ring 33. Thus, when the rotor 10 of the dispersion mechanism 300 rotates at high speed, negative pressure is generated, under the action of the negative pressure, part of the pulp above the dispersion mechanism 300 is sucked into the inside of the dispersion mechanism 300 through the through hole 311 and is sheared and dispersed through the stator 30 and the rotor 10, another part of the pulp above the dispersion mechanism 300 acts on the top wall of the stator base 31 and flows to the flow guide plate 414. Since the flow guide plate 414 guides the flow of the pulp, the arrangement of the flow guide plate 414 can promote the upward flow of the pulp, thereby achieving better up-and-down stirring of the pulp in the circulating tank 100, improving the circulating ability of the pulp, and improving the dispersion effect of the dispersion mechanism 300. Of course, in other embodiments, the dispersion mechanism 300 can also omit the flow guide plate 414.

[0143] It should be noted that the term "outer edge" refers to the outer boundary of the stator base 31. For example, in the present embodiment, the flow guide plate 414 is arranged to extend from the outer edge of the stator base 31 towards the side wall of the circulating tank 100. Specifically, the flow guide plate 414 is arranged on the outer side wall of the stator base 31, thereby avoiding the problem that the connection between the flow guide plate 414 and the stator base 31 forms a dead angle, causing part of the pulp to deposit in the dead angle and not participate in the circulation, increasing the difficulty of cleaning the dead angle, and reducing the flow resistance of the pulp, improving the smoothness of the flow of the pulp. Of course, in some embodiments, the flow guide plate 414 can also be arranged on the top wall of the stator base 31; or embedded in the inside of the stator base 31. The arrangement of the flow guide plate 414 and the stator base 31 can be set according to the actual situation, and the present application does not make specific limitations.

[0144] In the present embodiment, the flow guide plate 414 is integrally formed with the stator base 31, thereby improving the reliability and stability of the connection between the flow guide plate 414 and the stator base 31, improving the stability of the operation of the dispersion mechanism 300, and reducing noise. Of course, in some embodiments, the flow guide plate 414 and the stator base 31 can be detachably connected. On the one hand, this facilitates the installation and replacement of different components to form different configurations, so that the dispersion mechanism 300 can quickly switch configurations to apply to different scenarios; on the other hand, it facilitates the maintenance, replacement, etc. of the flow guide plate 414 and the stator base 31, and facilitates the processing and manufacturing of the flow guide plate 414 and the stator base 31. The flow guide plate 414 and the stator base 31 can be detachably connected together by screwing, buckling, etc. The flow guide plate 414 and the stator base 31 can also be connected together by bonding, welding, etc.

[0145] The flow guide plate 414 can be configured as a closed loop structure. For example, the number of flow guide plates 414 is one, and the flow guide plate 414 is arranged along the outer edge of the stator base 31 in a circle. Specifically, the flow guide plate 414 can be configured as a hollow truncated cone. Of course, in some embodiments, the flow guide plate 414 can also be configured as an open loop structure. For example, the number of flow guide plates 414 is multiple, and the multiple flow guide plates 414 are arranged along the outer edge of the stator base 31 in a circle. Each flow guide plate 414 can be configured as an arc-shaped plate.

[0146] Exemplarily, in the present embodiment, the flow guide plate 414 includes a flow guide surface connected to the top wall of the stator base 31. The connection between the flow guide surface and the top wall of the stator base 31 can be arranged in a circular arc, thereby reducing the flow resistance of the slurry, improving the smoothness of the slurry flow, promoting the reciprocating circulation movement of the slurry in the circulating tank 100, improving the circulation capacity of the slurry, and improving the dispersion effect and mixing effect of the slurry. Of course, in some embodiments, the connection between the flow guide surface and the top wall of the stator base 31 can also be arranged in an acute angle, reducing the difficulty of processing and manufacturing. In other embodiments, the flow guide surface and the top wall of the stator base 31 can also be connected by a transition surface, which is arranged obliquely relative to the flow guide surface and the top wall of the stator base 31. The included angle formed between the flow guide surface and the top wall of the stator base 31 is obtuse. Thus, the included angle formed between the flow guide surface and the top wall of the stator base 31 is obtuse to facilitate the slurry to flow more smoothly, thereby improving the circulation capacity of the slurry.

[0147] The flow guide plate 414 also includes a flow guide surface 4141 connected to the bottom wall of the stator base 31. The connection between the flow guide surface 4141 and the bottom wall of the stator base 31 can be arranged in a circular arc or an acute angle. The arc-shaped protrusions can also be arranged on the flow guide surface 4141. The structure of the arc-shaped protrusions is the same as or similar to that of the arc-shaped protrusions on the flow guide surface, which will not be described in detail here. Thus, the flow guide plate 414 can also guide the slurry thrown out by the dispersion mechanism 300, promote the reciprocating circulation movement of the slurry in the circulating tank 100, improve the circulation capacity of the slurry, and improve the dispersion effect and mixing effect of the slurry.

[0148] The above describes the embodiments of the present application in detail, and the specific examples are applied to describe the principles and implementation modes of the present application. The above description of the embodiments is only used to help understand the method and core idea of the present application; meanwhile, for those skilled in the art, the specific implementation modes and application ranges can be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A dispersing mechanism (300), disposed within a circulation tank (100), characterized in that, The dispersive mechanism (300) includes: The outer shell (40) is disposed inside the circulation tank (100) and is sealed to the circulation tank (100). A dispersion chamber (402) is provided inside the outer shell (40). The rotor (10) is rotatably disposed in the dispersion chamber (402). The rotor (10) includes a rotor base (11) and at least one rotor ring (13) disposed on the rotor base (11). The rotor ring (13) is provided with a plurality of first shear grooves (131) along the circumferential direction (Z) of the dispersion mechanism (300). The stator (30) is fixedly disposed in the dispersion cavity (402). The stator (30) includes at least one stator ring (33). The stator ring (33) is disposed on the inner side and / or outer side of the rotor ring (13). The stator ring (33) is provided with a plurality of second shear grooves (331) connected to a plurality of first shear grooves (131) along the circumferential direction (Z) of the dispersion mechanism (300).

2. The dispersing mechanism (300) as described in claim 1, characterized in that, The outer shell (40) includes a flow guide (41) and a connecting base (45), the flow guide (41) and the connecting base (45) being detachably connected to form the dispersion chamber (402), and the connecting base (45) being sealed to the circulation tank (100).

3. The dispersing mechanism (300) as described in claim 2, characterized in that, The flow guide (41) includes a mounting plate (411) and a guide sleeve (412). The guide sleeve (412) is fixedly connected to the mounting plate (411). The inner cavity of the guide sleeve (412) is connected to the dispersion cavity (402). The stator ring (33) is fixedly connected to one end of the mounting plate (411) facing away from the guide sleeve (412).

4. The dispersing mechanism (300) as described in claim 3, characterized in that, The bottom of the outer side wall of the guide sleeve (412) is provided with a guide surface (4121), the guide surface (4121) is connected to the outer side wall of the guide sleeve (412) and the top wall of the mounting plate (411) facing away from the stator ring (33), wherein the guide surface (4121) is inclined relative to the central axis (P) of the guide sleeve (412) and is configured as a plane or a curved surface.

5. The dispersing mechanism (300) as described in claim 3, characterized in that, The guide sleeve (412) has a reinforcing structure (413) on the end face facing away from the mounting plate (411), and the reinforcing structure (413) is configured as an arc chamfer or an arc rolled edge.

6. The dispersing mechanism (300) as described in claim 3, characterized in that, The stator (30) further includes a stator base (31), which is disposed on the side of the mounting plate (411) facing away from the guide sleeve (412); the mounting plate (411) and the stator base (31) are independently disposed and fixedly connected; or, the mounting plate (411) and the stator base (31) are integrally formed; the side of the stator base (31) facing away from the mounting plate (411) is fixedly connected to the stator ring (33) and is provided with a through hole (311) communicating with the inner cavity of the plurality of first shear grooves (131) and the guide sleeve (412).

7. The dispersing mechanism (300) as described in claim 2, characterized in that, The housing (40) also includes a plurality of connecting rods (42), one end of each connecting rod (42) is connected to the guide (41), and the other end of the connecting rod (42) is connected to the connecting base (45). The plurality of connecting rods (42) are arranged at intervals along the circumferential direction (Z) of the dispersing mechanism (300) and surround the outer side of the stator ring (33) located on the outermost side.

8. The dispersing mechanism (300) as described in claim 7, characterized in that, The connecting rod (42) has a circular or teardrop-shaped cross section along the axial direction (X) perpendicular to the dispersing mechanism (300).

9. The dispersing mechanism (300) as described in claim 7, characterized in that, The outer casing (40) also includes a plurality of positioning sleeves (43), one end of the positioning sleeve (43) is connected to the guide (41), the other end of the positioning sleeve (43) is connected to the connecting base (45), and the connecting rod (42) passes through the positioning sleeve (43).

10. The dispersing mechanism (300) as described in claim 2, characterized in that, The inner wall of the circulation tank (100) includes a top wall (1011), a bottom wall (1012), and a side wall (1013) connecting the top wall (1011) and the bottom wall (1012). The bottom wall (1012) is inclined relative to the side wall (1013) toward the dispersing mechanism (300) and smoothly transitions to the top wall of the connecting base (45) toward the guide member (41).

11. The dispersing mechanism (300) as described in claim 3, characterized in that, The dispersing mechanism (300) further includes an impeller (12), which is disposed on the rotor base (11). The rotor ring (13) and the impeller (12) are located on the same side of the rotor base (11) and are arranged around the impeller (12). One end of the impeller (12) away from the rotor base (11) extends into the inner cavity of the guide sleeve (412); or, one end of the impeller (12) away from the rotor base (11) is located outside the inner cavity of the guide sleeve (412).

12. The dispersing mechanism (300) as described in claim 11, characterized in that, The impeller (12) includes a base (121) and blades (122). The base (121) is fixedly connected to the rotor base (11). The blades (122) are disposed on the side wall of the base (121). The blades (122) are configured as straight blades, cylindrical blades or twisted blades.

13. The dispersing mechanism (300) as described in claim 1, characterized in that, The rotor ring (13) located on the outermost side of the rotor base (11) is located on the inner side of the outermost stator ring (33).

14. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The ratio of the diameter of the rotor ring (13) located on the outermost side of the rotor base (11) to the inner diameter of the circulation tank (100) is greater than or equal to 0.

1.

15. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The grooving ratio of the first shear groove (131) is greater than or equal to 0.

2.

16. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The gap between adjacent rotor rings (13) and stator rings (33) is less than or equal to 5 mm.

17. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The thickness of the rotor ring (13) along the radial direction (Y) of the dispersing mechanism (300) is a first thickness (D1), and the thickness of the stator ring (33) along the radial direction (Y) of the dispersing mechanism (300) is a second thickness (D2). A shear gap (403) is formed between adjacent rotor rings (13) and stator rings (33). The ratio of the first thickness (D1) to the shear gap (403) is greater than or equal to 1.5; and / or, the ratio of the second thickness (D2) to the shear gap (403) is less than or equal to 5; and / or, the ratio of the first thickness (D1) to the second thickness (D2) is greater than or equal to 1.

5.

18. The dispersing mechanism (300) as claimed in claim 17, characterized in that, The ratio of the first thickness (D1) to the shear gap (403) is greater than or equal to 3; and / or the ratio of the second thickness (D2) to the shear gap (403) is less than or equal to 2; and / or the ratio of the first thickness (D1) to the second thickness (D2) is greater than or equal to 2.

19. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The angle formed by the slotting direction of the first shearing groove (131) and the rotation direction of the rotor (10) is the first included angle, and is denoted as α. The angle formed by the slotting direction of the second shearing groove (331) and the rotation direction of the rotor (10) is the second included angle, and is denoted as β. Wherein, 90°≤α<180°, 0°<β≤90°.

20. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The stator (30) is configured as a plastic structure; or the stator (30) is configured as a metal structure, and the surface of the stator (30) is covered with a plastic structure.

21. The dispersing mechanism (300) as claimed in claim 1, characterized in that, The stator (30) and the outer shell (40) are integrally formed; or the stator (30) and the outer shell (40) are independently set and fixedly connected.

22. The dispersing mechanism (300) as described in any one of claims 1-21, characterized in that, The stator rings (33) are configured in three parts, and the rotor rings (13) are configured in two parts. Along the radial direction (Y) of the dispersing mechanism (300), each rotor ring (13) is disposed between two adjacent stator rings (33).

23. The dispersing mechanism (300) as described in any one of claims 1-21, characterized in that, The stator ring (33) is configured as a plurality of rings, and the rotor ring (13) is configured as a plurality of rings. Along the radial direction (Y) of the dispersing mechanism (300), the first shear grooves (131) of two adjacent rotor rings (13) are staggered; and / or, along the radial direction (Y) of the dispersing mechanism (300), the second shear grooves (331) of two adjacent stator rings (33) are staggered.

24. The dispersing mechanism (300) as described in any one of claims 1-21, characterized in that, The stator ring (33) is configured as a plurality of rings, and the thickness of the plurality of stator rings (33) gradually increases from the inside to the outside.

25. The dispersing mechanism (300) as described in any one of claims 1-21, characterized in that, Along the radial direction (Y) of the dispersing mechanism (300), the stator ring (33) and the rotor ring (13) are arranged alternately at equal intervals; the width of the first shear groove (131) in the circumferential direction (Z) of the dispersing mechanism (300) is equal to the width of the second shear groove (331) in the circumferential direction (Z) of the dispersing mechanism (300).

26. A circulating pulping device (1000), characterized in that, It includes a circulation tank (100) and a dispersing mechanism (300) as described in any one of claims 1-25, wherein the dispersing mechanism (300) is disposed within the circulation tank (100).

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