Circulating pulping equipment

Abstract

The invention discloses circulating pulping equipment. The circulating pulping equipment comprises a circulating tank and a dispersing mechanism, the circulating tank is provided with a circulating cavity. The dispersing mechanism is arranged at the bottom of the circulating tank and located in the circulating cavity. The dispersing mechanism comprises a rotor, a stator and a flow guide part. The rotor comprises a rotor base, an impeller and at least one rotor ring, the radial size of the impeller at the material suction end is smaller than or equal to the radial size of the impeller at the material discharge end, and the impeller comprises a base body and impeller blades. A rotor ring is disposed around the impeller, the rotor ring being provided with a plurality of first shear slots. The stator comprises a stator base and at least one stator ring, the stator base is fixed on the circulating tank and is provided with a through hole, the guide piece is fixedly connected with the stator base, the guide piece and the stator ring are located on different sides of the stator base, the stator ring and the rotor ring are alternately arranged, and a plurality of second shearing grooves are formed, so that the requirement of large-flow circulating pulping is met; and the dispersing capacity and the circulating capacity are improved.

Description

Technical Field

[0001] The present application relates to the technical field of pulping, and in particular to a circulating pulping device. Background Art

[0002] The existing circulating pulping equipment includes multiple circulating tanks, one of which is equipped with a dispersion mechanism. The dispersed slurry is discharged to the outlet to mix with the powder, and a large-flow circulation pump is required to circulate the slurry between different circulating tanks. However, this design method has a complex structure, is difficult to clean, has a complex circulation process, a small pulping volume, and a low slurry circulation dispersion efficiency, and thus cannot meet the requirements of large-flow circulation pulping. Summary of the invention

[0003] In view of this, one object of the present application is to provide a circulating pulping device to solve the technical problem that the circulating pulping device in the prior art cannot meet the requirements of large-flow circulating pulping.

[0004] In the first aspect, the embodiment of the present application provides a circulating pulping device including a circulating tank and a dispersing mechanism. The circulating tank is provided with a circulating cavity. The dispersing mechanism is arranged at the bottom of the circulating tank and is located in the circulating cavity. The dispersing mechanism includes a rotor, a stator and a flow guide. The rotor includes a rotor base, an impeller and at least one rotor ring. The impeller has a suction end away from the rotor base and a discharge end arranged opposite to the suction end, and the radial dimension of the impeller at the suction end is less than or equal to the radial dimension of the impeller at the discharge end. The impeller includes a base arranged on the rotor base and impeller blades arranged on the side wall of the base. The rotor ring is arranged around the impeller. The rotor ring is provided with a plurality of first shear grooves along the circumferential direction of the circulating pulping device. The stator includes a stator base and at least one stator ring. The stator base is fixed on the circulating tank and is provided with a through hole connected to the circulating cavity and the plurality of first shear grooves. The stator ring and the rotor ring are alternately arranged along the radial direction of the circulating pulping device, and a plurality of second shear grooves connected with the plurality of first shear grooves are arranged along the circumferential direction of the circulating pulping device. The flow guide is fixedly connected with the stator base and is located on a different side of the stator base from the stator ring, and the flow guide is provided with a flow guide channel connected with the through hole.

[0005] In combination with the first aspect, in certain implementations of the first aspect, a ratio of a diameter of the rotor ring located at the outermost side of the rotor base to an inner diameter of the circulation tank is greater than or equal to 0.1.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the thickness of the rotor ring along the radial direction of the circulating pulping equipment is a first thickness, the thickness of the stator ring along the radial direction of the circulating pulping equipment is a second thickness, and a shear gap is formed between adjacent rotor rings and stator rings, and 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.

[0007] In combination with the first aspect, in certain implementations 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.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the slotting ratio of the first shearing slot is greater than or equal to 0.2.

[0009] In combination with the first aspect, in certain implementations of the first aspect, a shear gap is formed between adjacent rotor rings and stator rings in a radial direction of the circulating pulping equipment, and the shear gap is less than or equal to 5 mm.

[0010] In combination with the first aspect, in certain implementations of the first aspect, a shear gap is formed between adjacent rotor rings and stator rings in the radial direction of the circulating pulping equipment, and the ratio of the volume of the shear gap to the circulation flow of the shear gap is greater than or equal to 1ms.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the linear speed of the rotor is 10 m / s-30 m / s.

[0012] In combination with the first aspect, in certain implementations of the first aspect, a ratio of the effective volume of the circulation tank to the circulation flow rate of the circulation tank is less than or equal to 2 min.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the angle formed by the slotting direction of the first shear groove and the rotation direction of the rotor is a first angle, recorded as α, and the angle formed by the slotting direction of the second shear groove and the rotation direction of the rotor is a second angle, recorded as β, wherein 90°≤α<180°, 0°<β≤90°.

[0014] In combination with the first aspect, in some implementations of the first aspect, 110°≤α≤160°, 20°≤β≤70°.

[0015] In combination with the first aspect, in certain implementations 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 covered with a plastic structure.

[0016] In combination with the first aspect, in some implementations of the first aspect, the rotor ring and the impeller are arranged on the same side of the rotor base.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the rotor ring is provided in plurality, and the first shear grooves of two adjacent rotor rings are staggered along the radial direction of the circulating pulping equipment; and / or, the stator ring is provided in plurality, and the second shear grooves of two adjacent stator rings are staggered along the radial direction of the circulating pulping equipment.

[0018] In combination with the first aspect, in some implementations of the first aspect, the stator ring is provided in plurality, and the thickness of the plurality of stator rings gradually increases from the inside to the outside.

[0019] In combination with the first aspect, in some implementations of the first aspect, the rotor ring located at the outermost side of the rotor base is located on the inner side of the outermost stator ring.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the top of the impeller extends into the guide channel, the diameter of the top of the guide channel is smaller than the diameter of the bottom of the guide channel, and the free ends of the impeller blades are arranged close to the inner wall of the guide channel; or, the top of the impeller is located outside the guide channel.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the guide member includes a guide sleeve and a mounting plate, the edge of the bottom of the guide sleeve is connected to the mounting plate, the side of the mounting plate facing away from the guide sleeve is fixedly connected to the stator base, and the bottom of the outer wall of the guide sleeve is provided with a guide surface, and the guide surface is connected to the outer wall of the guide sleeve and the top wall of the mounting plate facing away from the stator base; or, the guide member is configured as a guide sleeve, and the bottom of the outer wall of the guide sleeve is provided with a guide surface, and the guide surface is connected to the outer wall of the guide sleeve and the top wall of the stator base facing away from the stator ring, wherein the guide surface is inclined relative to the central axis of the guide sleeve and is configured as a plane or a curved surface.

[0022] In combination with the first aspect, in certain implementations of the first aspect, a reinforcement structure is provided on the end surface of the flow guide member facing away from the stator base, and the reinforcement structure is configured as an arc chamfer or an arc curled edge.

[0023] In combination with the first aspect, in certain implementations of the first aspect, the stator also includes a plurality of connecting rods, one end of each of the connecting rods is connected to the stator base and / or the guide member, and the other end of the connecting rod is connected to the inner wall of the bottom of the circulation tank, and the plurality of connecting rods are arranged at intervals along the circumferential direction of the circulating pulping equipment.

[0024] In combination with the first aspect, in certain implementations of the first aspect, a cross-section of the connecting rod along an axial direction perpendicular to the dispersion mechanism is circular or teardrop-shaped.

[0025] In combination with the first aspect, in certain implementations of the first aspect, the stator further includes a connecting base, the connecting base is arranged opposite to the stator base, and is connected through the connecting rod to form a dispersion cavity, and the rotor is rotatably arranged in the dispersion cavity.

[0026] In combination with the first aspect, in certain implementations of the first aspect, the inner wall of the circulation tank includes a tank top wall, a tank bottom wall, and a tank side wall connecting the tank top wall and the tank bottom wall, and the tank bottom wall is inclined relative to the tank side wall toward one side of the dispersion mechanism, and is smoothly connected to the connecting base toward the top wall of the stator base.

[0027] In combination with the first aspect, in certain implementations of the first aspect, the central axis of the dispersion mechanism is coaxially arranged with the central axis of the circulation tank; or, the central axis of the dispersion mechanism is eccentrically arranged with the central axis of the circulation tank.

[0028] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment also includes a stirring mechanism, the stirring mechanism includes a stirring member and a spoiler, the stirring member includes a stirring shaft and a plurality of stirring blades arranged on the stirring shaft, the spoiler includes a plurality of baffles, and the plurality of baffles and the plurality of stirring blades are staggered.

[0029] In combination with the first aspect, in certain implementations of the first aspect, the plurality of stirring blades and the plurality of baffles are each inclined relative to the central axis of the stirring shaft, and along the axial direction of the circulation tank, adjacent stirring blades and baffles form a stirring unit, in which the inclination direction of the stirring blades is opposite to the inclination direction of the baffles.

[0030] In combination with the first aspect, in certain implementations of the first aspect, the central axis of the stirring shaft is coaxially arranged with the central axis of the dispersing mechanism; or, the central axis of the stirring shaft is spaced a preset distance from the central axis of the dispersing mechanism.

[0031] The circulating pulping equipment provided by the present application is based on setting the dispersion mechanism at the bottom of the circulation tank and being located in the circulation chamber, the rotor ring is set around the impeller, and the stator ring and the rotor ring are alternately arranged along the radial direction of the circulating pulping equipment. On the one hand, the slurry is circulated in a single circulation tank through the dispersion mechanism, eliminating the circulation pipeline and the circulation pump. The slurry flow resistance is small, which meets the requirements of large-flow circulation pulping, and the slurry is sucked from the top of the dispersion mechanism, transported to the bottom of the dispersion mechanism through the impeller, and then sheared and dispersed by the stator ring and rotor ring below. The slurry thrown out by the dispersion mechanism flows toward the side wall of the circulation tank, and then flows upward along the side wall of the circulation tank, forming a reciprocating flow path, improving On the one hand, the dispersing capacity and circulation capacity of the circulating pulping equipment are improved; on the other hand, the setting of the impeller facilitates the conversion of the kinetic energy of the slurry into pressure energy, reduces the energy loss of the flow channel, and increases the speed of the slurry at the discharge end, thereby improving the flow efficiency and flow output of the slurry; on the other hand, the alternating arrangement of the stator ring and the rotor ring improves the shearing capacity of the slurry and improves the dispersion effect; on the other hand, based on the stator ring and the guide member being arranged on different sides of the stator base, and the guide member being arranged in the guide channel connected to the through hole, the guide channel can also play a guiding role for the slurry, prompting the slurry discharged from the dispersion mechanism to flip up and down in the circulation tank, thereby improving the circulation capacity of the slurry and making the stirring effect and mixing effect of the slurry better. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0033] Figure 1 It is a cross-sectional view of the circulating pulping equipment provided in the first embodiment of the present application.

[0034] Figure 2 yes Figure 1 A schematic structural diagram of a first embodiment of a dispersion mechanism of a circulating pulping device.

[0035] Figure 3 yes Figure 2 Exploded view of the decentralized mechanism in .

[0036] Figure 4 yes Figure 2 A cross-sectional view of a first embodiment of the dispersion mechanism along the axial direction of the circulating pulping device.

[0037] Figure 5 yes Figure 2A cross-sectional view of a second embodiment of the dispersion mechanism along the radial direction of the circulating pulping equipment.

[0038] Figure 6 yes Figure 2 Schematic diagram of the structure of the rotor of the dispersion mechanism.

[0039] Figure 7 yes Figure 2 A cross-sectional view of the dispersion mechanism in the circulating pulping equipment along the axial direction.

[0040] Figure 8 yes Figure 1 A schematic structural diagram of a second embodiment of the dispersion mechanism of the circulating pulping equipment.

[0041] Fig. 9 yes Figure 8 A cross-sectional view of the dispersion mechanism in the circulating pulping equipment along the axial direction.

[0042] Fig.10 It is a cross-sectional view of the circulating pulping equipment provided in the second embodiment of the present application.

[0043] Description of main reference numerals: circulating pulping equipment-1000; circulating tank-100; circulating chamber-101; tank top wall-1011; tank bottom wall-1012; tank side wall-1013; mounting hole-102; discharge pipe-103; tank body-110; tank cover-120; dispersion mechanism-300; rotor-10; rotor base-11; impeller-12; base-121; impeller blade-122; rotor ring-13; first shear groove-131; first Fillet-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 fillet-332; guide channel-401; dispersion cavity-402; shear gap-403; guide member-41; mounting plate-411; mounting groove-4111; guide sleeve -412; guide surface-4121; reinforcement structure-413; first curved surface-4131; second curved surface-4132; guide plate-414; guide surface-4141; connecting rod-42; connecting rod part-421; stopper 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 ; Sealing plate-46; Stirring mechanism-500; Stirring member-50; Stirring shaft-51; Stirring blade-52; Stirring frame-53; Stirring arm-530; First stirring portion-531; Second stirring portion-532; Scraping portion-54; Spoiler-60; Fixed shaft-61; Baffle-62; Stirring unit-710; First thickness-D1; Second thickness-D2; Axial direction-X; Radial direction-Y; Circumferential direction-Z; Rotation direction-F; Central axis-P.

[0044] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0046] It is understood that the terms in the specification and claims of the present application and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit the present application. The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order. Unless the context clearly states otherwise, the singular forms "one" and "the" are also intended to include plural forms. The term "including" and any of their variations are intended to cover non-exclusive inclusions. In addition, the present application can be implemented in a variety of different forms and is not limited to the embodiments described in this embodiment. The purpose of providing the following specific embodiments is to facilitate a clearer and more thorough understanding of the disclosure of the present application, in which the words indicating the orientation such as upper, lower, left, and right are only for the position of the structure shown in the corresponding drawings. In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set on..." should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be a connection between two elements. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] The term "slurry" refers to a material in a stable suspension state formed by mixing and dispersing a powder and a liquid. A powder refers to a material in a powdered form, and a liquid refers to a material in a liquid form.

[0048] The term "dispersion" refers to the process in which particle agglomerates in the slurry are fully disintegrated to form a stable solid-liquid suspension system.

[0049] The term "linear velocity" refers to the speed at which any point on an object moves in a circular motion about a fixed axis. For example, for a circulating pulping device, the linear velocity of the rotor refers to the speed at which any point on the surface of the rotor moves relative to the center of the circle. Its magnitude does not change, but its direction is always changing, and it is always in the tangent direction (perpendicular to the line connecting the point to the center of the circle).

[0050] The term "interstitial volume" refers to the maximum volume of fluid that can be filled in the interstitial space.

[0051] The term "interstitial flow" refers to the velocity of a fluid through a pipe or an aperture.

[0052] The term "effective volume" refers to the volume in 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 in the circulation tank.

[0053] The following description is a preferred embodiment of the present invention, but the above description is for the purpose of explaining the general principles of the present invention and is not intended to limit the scope of the present invention. The scope of protection of the present invention shall be determined by the appended claims.

[0054] Please also read Figures 1 to 3 , Figure 1 is a cross-sectional view of a circulating pulping device 1000 provided in the first embodiment of the present application; Figure 2 yes Figure 1 A schematic structural diagram of a first embodiment of a dispersion mechanism 300 of a circulating pulping device 1000; Figure 3 yes Figure 2 Exploded view of the dispersion mechanism 300 in the circulation pulping device 1000. The circulation pulping device 1000 includes a circulation tank 100 and a dispersion mechanism 300. The circulation tank 100 is provided with a circulation chamber 101. The dispersion mechanism 300 is arranged at the bottom of the circulation tank 100 and is located in the circulation chamber 101. The dispersion mechanism 300 includes a rotor 10, a stator 30 and a flow guide 41. The rotor 10 includes a rotor base 11, an impeller 12 and at least one rotor ring 13. The impeller 12 has a suction end away from the rotor base 11 and a discharge end arranged opposite to the suction end, and the radial dimension of the impeller 12 at the suction end is less than or equal to the radial dimension of the impeller 12 at the discharge end. The impeller 12 includes a base 121 arranged on the rotor base 11 and impeller blades 122 arranged on the side wall of the base 121. The rotor ring 13 is arranged around the impeller 12. The rotor ring 13 is provided with a plurality of first shear grooves 131 along the circumferential direction Z of the circulating pulping device 1000. The stator 30 includes a stator base 31 and at least one stator ring 33. The stator base 31 is fixed to the circulation tank 100, and is provided with a through hole 311 connected to the circulation chamber 101 and the plurality of first shear grooves 131. The stator ring 33 and the rotor ring 13 are alternately arranged along the radial direction Y of the circulating pulping device 1000, and a plurality of second shear grooves 331 connected to the plurality of first shear grooves 131 are provided along the circumferential direction Z of the circulating pulping device 1000. The flow guide 41 is fixedly connected to the stator base 31, and is located on a different side of the stator base 31 from the stator ring 33, and the flow guide 41 is provided with a flow guide channel 401 connected to the through hole 311.

[0055] The circulating pulping equipment 1000 provided in the embodiment of the present application is based on that the dispersion mechanism 300 is arranged at the bottom of the circulation tank 100 and is located in the circulation chamber 101, the rotor ring 13 is arranged around the impeller 12, and the stator ring 33 and the rotor ring 13 are alternately arranged along the radial direction Y of the circulating pulping equipment 1000. On the one hand, the slurry is circulated in a single circulation tank 100 through the dispersion mechanism 300, and the circulation pipeline and the circulation pump are omitted. The slurry flow resistance is small, which meets the requirements of large-flow circulation pulping, and the slurry is sucked from the top of the dispersion mechanism 300, transported to the bottom of the dispersion mechanism 300 through the impeller 12, and then sheared and dispersed by the stator ring 33 and the rotor ring 13 below. The slurry thrown out by the dispersion mechanism 300 flows toward the side wall of the circulation tank 100, and then flows upward along the side wall of the circulation tank 100. A reciprocating flow path is formed, which improves the dispersion and circulation capabilities of the circulating pulping equipment 1000; on the other hand, the setting of the impeller 12 facilitates the conversion of the kinetic energy of the slurry into pressure energy, reduces the energy loss of the flow channel, and increases the speed of the slurry at the discharge end, thereby improving the flow efficiency and flow output of the slurry; the alternating arrangement of the stator ring 33 and the rotor ring 13 improves the shearing ability of the slurry and improves the dispersion effect; on the other hand, based on the stator ring 33 and the guide member 41 being arranged on different sides of the stator base 31, and the guide member 41 being arranged in the guide channel 401 connected to the through hole 311, the guide channel 401 can also play a guiding role for the slurry, prompting the slurry discharged from the dispersion mechanism 300 to flip up and down in the circulation tank 100, thereby improving the circulation capacity of the slurry and making the stirring and mixing effects of the slurry better.

[0056] Exemplarily, in the present embodiment, the slurry may be a battery slurry. Battery slurry includes a variety of materials, such as but not limited to solvents, conductive agents, liquid materials or powder materials, etc., and various materials are mixed to form battery slurry. Powder materials include but are not limited to active substances, conductive agent powders, binder powders and other powder materials. Liquid materials include but are not limited to liquids such as conductive agent solutions and binder solutions. Liquid materials may also include liquids obtained by mixing powder materials and liquid materials. In the present embodiment, the slurry is illustrated as a battery slurry. It can be understood that the dispersion mechanism 300 can also be used to disperse other slurries, such as food, medicine, fertilizers, building materials, etc., and the application of the dispersion mechanism 300 is not limited here.

[0057] It should be noted that Figure 1 The purpose is only to schematically describe the arrangement between the circulation tank 100 and the dispersion mechanism 300, and it is not to make specific limitations on the connection position, connection relationship and specific structure of each component. Figure 1 The structure of the circulating pulping device 1000 is only shown in the embodiment of the present application, and does not constitute a specific limitation on the circulating pulping device 1000. In other embodiments of the present application, the circulating pulping device 1000 may include Figure 1 More or fewer components, or combinations of certain components, or different components, such as the circulating pulping apparatus 1000 may also include but are not limited to temperature sensors, etc. The temperature sensor is used to detect the temperature of the pulp in the circulation tank 100 .

[0058] For the accuracy of description, please refer to the directions in this article. Figure 1 For reference, "axial direction X" refers to the direction parallel to the central axis P of the circulation tank 100, that is, the left-right direction (where the positive direction of the X axis is left); the term "radial direction Y" refers to the direction perpendicular to the central axis P of the circulation tank 100, that is, the radius direction along the cross section of the circulation tank 100, and is also the 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, that is, the direction surrounding the central axis P of the circulation tank 100, wherein the axial direction X, radial direction Y and circumferential direction Z together constitute the three orthogonal directions of the circulation tank 100. The axial direction X, radial direction Y and circumferential direction Z of the circulation tank 100 can be customized according to the specific structure of the product and the perspective of the drawings, and this application does not make specific restrictions. For the convenience of description, the directions of up, down, left, right, etc. in this application are relative positions and do not constitute restrictions on implementation.

[0059] In this embodiment, the circulation tank 100 includes a tank body 110 and a tank cover 120 connected to the tank body 110. The tank cover 120 is detachably connected to the tank body 110, so as to facilitate the assembly, maintenance, tilting and other operations of various parts of the circulation pulping equipment 1000. Specifically, the dispersion mechanism 300 is arranged at the bottom of the tank body 110 facing away from the tank cover 120, and the stirring mechanism 500 is arranged on the tank cover 120. Therefore, the assembly of the stirring mechanism 500 and the dispersion mechanism 300 is convenient, the layout is reasonable, the structure is compact, and the cleaning and maintenance of the parts of the circulation pulping equipment 1000 are convenient.

[0060] It can be understood that when the circulating pulping device 1000 is used for pulping, liquid material can be added to the circulation tank 100 first, and the liquid material can be pre-dispersed by the dispersion mechanism 300 before the powder material is added, thereby improving the wetting effect of the liquid material on the powder material and improving the dispersion and mixing effect of the dispersion mechanism 300; or, liquid material can be added to the circulation tank 100 first, and then the powder material can be added, and after the powder material and liquid material are added, the dispersion mechanism 300 is started to disperse, so as to realize the slurry to circulate and reciprocate in the circulation tank 100. The circulation tank 100 is provided with a discharge pipe 103 to realize the output of the slurry. Optionally, the discharge pipe 103 is arranged at the bottom of the circulation tank 100. The discharge pipe 103 is arranged to be tilted downward relative to the central axis P of the circulation tank 100, thereby improving the discharge effect.

[0061] In some embodiments, the circulating pulping device 1000 further includes a powder conveying mechanism. The powder conveying mechanism may be disposed on the tank cover 120 or on the tank body 110. The powder conveying mechanism may include but is not limited to a feeding screw or a rotary valve, so as to achieve uniform feeding of the powder conveying mechanism and improve the uniformity of slurry stirring. Of course, in some embodiments, a powder breaking mechanism is disposed on the transmission path of the powder conveying mechanism, so as to improve the wetting effect of the liquid on the powder, reduce the wear of the dispersion mechanism 300, and improve the dispersion efficiency of the dispersion mechanism 300.

[0062] The circulating pulping equipment 1000 also includes a liquid material conveying mechanism. The liquid material conveying mechanism is arranged on the tank cover 120 or the tank body 110. Optionally, a guiding mechanism is arranged on the transmission path of the liquid material conveying mechanism. The guiding 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 through the guiding mechanism, and the liquid material dispersed by the dispersion mechanism 300 contacts and infiltrates with the powder material, thereby improving the mixing and dispersing effect.

[0063] The circulating pulping equipment 1000 also includes a rotating shaft 21 and a driving member 22. The rotating shaft 21 is connected to the rotor 10. The driving member 22 is used to drive the rotor 10 to rotate around the central axis of the rotating shaft 21, so that the dispersion mechanism 300 can disperse the slurry in the circulation tank 100. The dispersion mechanism 300 also includes a limiter 23, one end of the rotating shaft 21 is connected to the driving member 22, and the other end of the rotating shaft 21 is connected to the limiter 23. The limiter 23 is used to limit the installation position of the rotor 10 relative to the rotating shaft 21, so as to avoid vibration and shaking of the rotor 10 relative to the rotating shaft 21, improve the stability of the rotating shaft 21, ensure the smooth operation of the dispersion mechanism 300, reduce the wear of the slurry on the dispersion mechanism 300; and facilitate the installation of the rotor 10 and the rotating shaft 21. The circulating pulping equipment 1000 also includes a mounting seat 24, and the driving member 22 is installed on the circulation tank 100 through the mounting seat 24.

[0064] In some embodiments, the limiter 23 includes a connecting section and a free end that are relatively arranged along the axial direction X of the circulating pulping equipment 1000. The connecting end of the limiter 23 is provided with a connecting shaft 231, and the connecting shaft 231 is detachably fixedly connected to the rotating shaft 21. Of course, in some embodiments, the limiter 23 and the rotating shaft 21 can also be integrally formed. The free end of the limiter 23 is provided with a conical head 232. Therefore, on the one hand, the conical head 232 can divert the slurry fluid, reduce the resistance of the stirring shaft 51 during the rotation process, reduce energy consumption, and thus avoid the problem of reduced flow rate of the slurry fluid due to flow field interference; on the other hand, the conical head 232 can buffer and disperse the material to avoid deformation of the rotating shaft 21 due to the impact of the material; on the other hand, the conical head 232 can also break up the agglomerates in the slurry to ensure the quality and consistency of pulping.

[0065] 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 circulation 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 circulation tank 100 is too small, the linear speed of the rotor 10 is 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. At the same time, the insufficient dispersing ability of the dispersion mechanism 300 is likely to cause the slurry to deposit at the bottom of the circulation tank 100, making the slurry's ability to circulate back and forth poor, reducing the product quality of the slurry; on the other hand, the small diameter of the rotor ring 13 is likely to cause the risk of slurry blocking in the dispersion mechanism 300. In the embodiment of the present application, 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 circulation tank 100 is greater than or equal to 0.1, thereby ensuring that the linear speed of the rotor 10 is relatively high, and the slurry is fully dispersed, sheared, homogenized, and crushed in the dispersion mechanism 300, so as to avoid the slurry being easily deposited at the bottom of the circulation tank 100 due to insufficient dispersion capacity of the dispersion mechanism 300, and the slurry is prompted to reciprocate and circulate, thereby reducing the slurry preparation time, and avoiding the risk of slurry blockage in the dispersion mechanism 300 due to the small diameter of the rotor ring 13, thereby improving the dispersion capacity of the dispersion mechanism 300 for the slurry and improving the product quality of the slurry; on the other hand, the slurry can generate a higher shear force under the rotation of the rotor 10 at a high linear speed, which causes the viscosity of the slurry to decrease, thereby accelerating the transmission speed of the slurry, making the slurry easier to flow, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating and circulating motion of the slurry. 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 circulation tank 100 is greater than or equal to 0.2.

[0066] 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 circulation 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 velocity of the rotor 10 is relatively large, and the shear force that the rotor 10 can generate is relatively large, but the rotor 10 not only increases the energy consumption of the dispersion mechanism 300 during rotation, but also easily causes gas-liquid exchange of the slurry, resulting in the generation of bubbles, which has little effect on the stirring of the slurry. In the embodiment of the present application, 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 circulation tank 100 is in the range of 0.1 to 0.9, thereby ensuring a relatively high linear velocity of the rotor 10, and promoting sufficient dispersion, shearing, homogenization, and crushing of the slurry in the dispersion mechanism 300, thereby reducing the slurry preparation time, and improving the dispersion ability of the dispersion mechanism 300 on the slurry, promoting the slurry discharged from the dispersion mechanism 300 to have an upward trend, increasing the dispersion of the slurry and making it difficult for the slurry to settle at the bottom of the circulation tank 100, and reducing the product energy consumption, thereby avoiding the generation of bubbles in the dispersion mechanism 300 during the dispersion process, and improving the product quality of the slurry.

[0067] 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 circulation tank 100 may 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 circulation tank 100 may be set according to the size parameters of the circulation tank 100, the volume of the slurry to be dispersed, the viscosity and other factors, and is not specifically limited in the embodiments of the present application.

[0068] Please also read Figure 3 and Figure 4 , Figure 4 yes Figure 2The cross-sectional view of the first embodiment of the dispersion mechanism 300 in the circulation pulping device 1000 along the axial direction X. The thickness of the rotor ring 13 along the radial direction Y of the circulation pulping device 1000 is the first thickness D1, the thickness of the stator ring 33 along the radial direction Y of the circulation pulping device 1000 is the second thickness D2, and a shear gap 403 is formed between adjacent rotor rings 13 and stator rings 33, and 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 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 slurry during the dispersion process, thereby improving the dispersion effect and mixing effect of the slurry. 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 scope and intensity of the shear force, and further affecting the uniformity and efficiency of the slurry dispersion; when the ratio of the thickness of the stator ring 33 to the shear gap 403 is small, it indicates that the thickness of the stator ring 33 is relatively thin and the shear gap 403 is relatively large. The friction force to which the slurry is subjected when passing through this gap will be more intense, thereby helping to better disperse powders such as solid particles in the slurry in the liquid material, thereby improving the uniformity of the slurry. At the same time, the setting of a smaller ratio of the thickness of the stator ring 33 to the shear gap 403 can also increase the shear rate of the dispersion mechanism 300, thereby enhancing the shear force and achieving a better mixing and dispersion effect of the slurry. When the ratio of the thickness of the rotor ring 13 to the thickness of the stator ring 33 is large, it indicates that the thickness of the rotor ring 13 is thicker than that of the stator ring 33. Thus, the increase in the thickness of the rotor ring 13 enables the rotor 10 to provide greater shear force during rotation, effectively breaking up large particles and agglomerates in the slurry, thereby helping to improve the dispersion efficiency and at the same time enhancing the stirring intensity, so that the materials in the slurry are more fully mixed, thereby improving the uniformity of the dispersion. The embodiment of the present application improves the dispersing effect and efficiency of the slurry by the dispersion mechanism 300, accelerates the transmission efficiency of the slurry in the dispersion mechanism 300, makes the slurry flow more easily, improves the material absorption and discharge capabilities of the dispersion mechanism 300, and promotes the reciprocating circulation of the slurry in the circulation tank 100 by reasonably setting 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 the adjacent rotor ring 13 and the stator ring 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.

[0069] 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 slurry, and improving the reciprocating circulation ability of the slurry in the circulation tank 100.

[0070] In some embodiments, the slot ratio of the first shear groove 131 is greater than or equal to 0.2. It can be understood that when the slot ratio of the first shear groove 131 is too small, the contact area between the rotor 10 and the slurry 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 slot ratio of the first shear groove 131 to be greater than or equal to 0.2. On the one hand, it can ensure the uniform distribution of shear force and avoid the phenomenon of damaging the structure of each material in the slurry. At the same time, it enhances the shear strength of the rotor ring 13, promotes the uniform dispersion of the slurry, and thus improves the shear efficiency and dispersion uniformity of the dispersion mechanism 300.

[0071] It should be noted that the term "grooving ratio" refers to the ratio of the groove length of the product to the product length along the length direction of the product. For example, in this embodiment, the groove ratio of the first shearing groove 131 of the stator ring 33 refers to the ratio of the sum of the width dimensions of all the first shearing grooves 131 along the circumferential direction Z of the circulating pulping device 1000 to the circumference of the stator ring 33 along the circumferential direction Z of the circulating pulping device 1000.

[0072] In some embodiments, the slot ratio of the first shear groove 131 is less than or equal to 0.8. It can be understood that when the slot ratio of the first shear groove 131 is too large, the contact area between the rotor 10 and the slurry is also increased, thereby enhancing the shear strength of the rotor ring 13, but the slot ratio of the rotor 10 is too large, which easily leads to uneven distribution of shear force. Some areas may destroy the structure of various materials in the slurry due to excessive shear force, while other areas may not achieve the desired dispersion effect due to insufficient shear force. At the same time, since the rotor 10 requires more energy to overcome the large shear resistance, the energy consumption and maintenance cost of the dispersion mechanism 300 are increased. The embodiment of the present application sets the slot ratio of the first shear groove 131 between 0.2 and 0.8. On the one hand, the shear efficiency and dispersion uniformity of the dispersion mechanism 300 are improved, while the energy consumption and maintenance cost of the dispersion mechanism 300 are reduced; on the other hand, the slurry can effectively reduce the viscosity of the slurry under the action of a higher shear force, thereby accelerating the transmission speed of the slurry, making the slurry easier to flow, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation of the slurry.

[0073] For example, the slot ratio of the first shear groove 131 may also be, but not limited to, 0.3, 0.4, 0.5, 0.6 or 0.7, etc. It should be noted that the slot ratio of the first shear groove 131 may be set according to the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and the embodiment of the present application does not make any specific limitation.

[0074] In this 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. A first fillet 132 is provided at the corner of the first shear groove 131, and a second fillet 332 is provided at the corner of the second shear groove 331. Thus, the structural strength of the rotor ring 13 and the stator ring 33 is improved, stress concentration is prevented, the service life is extended, and the aesthetics is improved.

[0075] In some embodiments, in the radial direction Y of the circulating pulping 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 intensity of the shear force will be weakened accordingly, thereby reducing the time and intensity of the shear force on the slurry, resulting in a reduction in the shear dispersion effect on the slurry. In the embodiment of the present application, the shear gap 403 is set to be less than or equal to 5 mm, so that the shear gap 403 is small, which prompts each material in the slurry to be effectively broken and dispersed by sufficient shear force and pressure, thereby improving the dispersion uniformity of the slurry, and improving the dispersion efficiency and dispersion effect of the dispersion mechanism 300 on the slurry. At the same time, the slurry can effectively reduce the viscosity of the slurry under higher shear force and pressure, thereby accelerating the transmission speed of the slurry, thereby making the slurry easier to flow, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation of the slurry.

[0076] Optionally, 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, which will cause the particles in the slurry to break, agglomerate and depolymerize, and increase the contact area and contact time between the slurry and the surface of the dispersion mechanism 300, thereby improving the shear dispersion of the slurry. It should be noted that the shear gap 403 can be set according to the size parameters of the circulation tank 100, the volume of the slurry to be dispersed, the viscosity and other factors, and the embodiment of the present application does not make specific limitations. For example, the shear gap 403 can also be less than or equal to 4 mm, 3 mm or 1 mm, etc.

[0077] In some embodiments, in the radial direction Y of the circulating pulping device 1000, a shear gap 403 is formed between adjacent rotor rings 13 and stator rings 33, and the ratio of the volume of the shear gap 403 to the circulation flow of the shear gap 403 is greater than or equal to 1ms. It can be understood that when the ratio of the volume of the shear gap 403 to the circulation flow of the shear gap 403 is small, the shearing effect generated by the dispersion mechanism 300 may not be strong enough, which may cause uneven dispersion of the slurry and easy aggregation or precipitation of particles. The embodiment of the present application sets the ratio of the volume of the shear gap 403 to the circulation flow of the shear gap 403 to be greater than or equal to 1ms, so that the shearing effect generated by the dispersion mechanism 300 can be more concentrated, thereby providing a greater shear force for the slurry, helping the particles or solids in the slurry to be better dispersed in the liquid material, preventing the slurry from aggregating or settling particles, thereby improving the overall uniformity and stability of the slurry, while improving the discharge capacity of the dispersion mechanism 300, and promoting the slurry to perform reciprocating circulation. Optionally, the ratio of the volume of the shear gap 403 to the circulation flow of the shear gap 403 is greater than or equal to 10 ms.

[0078] Of course, in some embodiments, the ratio of the volume of the shear gap 403 to the circulation flow rate of the shear gap 403 can be set according to the size parameters of the circulation tank 100, the volume of the slurry to be dispersed, the viscosity and other factors, and the embodiments of the present application do not make specific limitations. For example, the ratio of the volume of the shear gap 403 to the circulation flow rate of the shear gap 403 can also be greater than or equal to 3ms, 5ms, 7ms, 9ms, 11ms, 13ms, 15ms or 17ms, etc., and the embodiments of the present application do not make specific limitations.

[0079] In some embodiments, the linear velocity of the rotor 10 is 10 m / s-30 m / s. It is understandable that when the linear velocity of the rotor 10 is too large, the particles in the slurry may be subjected to excessive shear force, which may destroy the structure of the particles, resulting in too small a particle size, which in turn affects the dispersion stability of the slurry, while causing greater wear on the dispersion mechanism 300, increasing the energy consumption of the equipment, and reducing the energy efficiency ratio. When the linear velocity of the rotor 10 is too small, the shear force on the slurry in the gap between the stator 30 and the rotor 10 is small, which will cause the various materials in the slurry to be unable to be fully dispersed, thereby affecting the uniformity and stability of the slurry, and affecting the transmission speed of the slurry in the dispersion mechanism 300. The embodiment of the present application sets the linear speed of the rotor 10 to 10m / s-30m / s, so that the rotor 10 can provide an appropriate rotation speed, ensuring that the shear force generated by the rotor 10 can break large particles in the slurry into small particles, thereby achieving fine dispersion of the slurry, thereby improving the dispersion efficiency and uniformity of the slurry by the dispersion mechanism 300, improving the quality of the slurry, and 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 a higher shear force, thereby accelerating the transmission speed of the slurry, making the slurry easier to flow, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation of the slurry.

[0080] Of course, in some embodiments, the linear speed of the rotor 10 can be set according to factors such as the size parameters of the circulation tank 100, the volume of the slurry to be dispersed, the viscosity, etc., and the embodiments of the present application do not make specific limitations. For example, the linear speed of the rotor 10 can be greater than or equal to 10m / s, 15m / s, 20m / s, 25m / s or 30m / s, etc., and the embodiments of the present application do not make specific limitations.

[0081] 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, so that the components in the slurry have time to undergo unnecessary precipitation and separation, thereby affecting the uniformity of the slurry and reducing 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 precipitation, stratification, agglomeration and other problems caused by the long-term residence of the slurry, improving the uniformity of the slurry, and improving the production efficiency of the slurry. Optionally, 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.

[0082] 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 under normal working conditions. The circulation flow rate of the circulation tank 100 refers to the volume of fluid flowing through the circulation tank 100 per unit time during the circulation process of the circulation tank 100. The ratio of the effective volume of the circulation tank 100 to the circulation flow rate of the circulation tank 100 is only used for illustration and can be set according to factors such as the viscosity and volatility of the slurry to be dispersed, and is not specifically limited in the embodiments of the present application.

[0083] The angle formed by the slotting direction of the first shearing groove 131 and the rotation direction F of the rotor 10 is the first angle, which is recorded as α, and the angle formed by the slotting direction of the second shearing groove 331 and the rotation direction F of the rotor 10 is the second angle, which is recorded as β, wherein 90°≤α<180°, 0°<β≤90°. Therefore, 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 will change, so that the rotor 10 can generate stronger shear force and turbulence, which is helpful for the dispersion and mixing of various materials in the slurry; 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 opposite, 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 directions of the first shear groove 131 and the second shear groove 331 are the same, it can better match the movement of the rotor 10 and the stator 30, form a more effective shear force, and promote the dispersion and mixing of particles.

[0084] Optionally, 110°≤α≤160°, 20°≤β≤70°. Based on the opposite inclination direction of the first shear groove 131 and the second shear groove 331, on the one hand, the shearing 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 to avoid the uneven phenomenon of the slurry during the dispersion process, ensuring that each particle can be effectively dispersed; on the other hand, the shear dispersion 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 through the shear area between the stator ring 33 and the rotor ring 13, it still has enough kinetic energy to be discharged by centrifugation, and there is no need to add a discharge blade that works on the slurry on the outside of the outermost stator ring 33, which greatly reduces the disturbance of the fluid in the discharge area, so that the slurry pressure in the discharge area can be kept uniform and stable, and the fluid can be discharged at a stable flow rate, eliminating the vibration and noise caused by pulsation.

[0085] Of course, in some embodiments, please refer to Figure 3 and Figure 5 , Figure 5 yes Figure 2FIG. 1 is a cross-sectional view of a second embodiment of the dispersion mechanism 300 along the radial direction Y of the circulating pulping device 1000. Figure 5 As shown, in the second embodiment, the slotting direction of the first shearing groove 131 and the slotting direction of the second shearing groove 331 may also be the same as the rotation direction F of the rotor 10, which is not specifically limited in the present application.

[0086] In some embodiments, the stator 30 is configured as a metal structure. The metal structure includes but is not limited to carbon steel, stainless steel, metal alloys, etc. Stainless steel has good corrosion resistance and high temperature resistance. Carbon steel has low cost and good mechanical properties. Metal alloys have good wear resistance and corrosion resistance.

[0087] In some 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 covered with a plastic structure. On the one hand, the plastic material is low in cost, which reduces the cost; on the other hand, the plastic structure can be deformed under the action of external force, increasing the relative contact area between the slurry and the stator 30 and improving the shearing effect.

[0088] 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 angle range of the first angle is 85 degrees to 95 degrees, that is, 85°≤α≤95°, and the angle range of the second angle is also 85 degrees to 95 degrees, 85°≤β≤95°. It can be understood that when the slotting directions of the first shearing groove 131 and the second shearing groove 331 are tilted relative to the radial direction Y of the dispersion mechanism 300, the sharp angles generated by the edges of the first shearing groove 131 and the second shearing groove 331 are easily deformed and affect the shear dispersion effect. The embodiment of the present application is based on setting a suitable first angle and second angle so that the sharp angles generated by the edges of the first shearing groove 131 and the second shearing groove 331 are approximately right angles, thereby avoiding deformation of the edges of the first shearing groove 131 and the second shearing groove 331, and improving the shearing effect and shearing efficiency of the stator 30 and the rotor 10. Optionally, in some embodiments, α=90°, β=90°.

[0089] Exemplarily, in this embodiment, one rotor ring 13 is provided, and two stator rings 33 are provided. The rotor ring 13 is provided between the two stator rings 33. Thus, on the one hand, based on the fact that the rotor ring 13 is provided between the two stator rings 33, the slurry can form a better circulation and turbulent zone in the circulation tank, thereby improving the dispersion efficiency; on the other hand, the stator ring 33 can optimize the flow path and velocity distribution of the slurry fluid, making the fluid more uniform during the dispersion process, reducing the phenomenon of slurry swirling due to uneven velocity, reducing the depth of the vortex, and improving the circulation effect of the slurry; on the other hand, the overall structure of the rotor 10 and the stator 30 is simplified, and the shear force and impact force are generated by the interaction between the rotor 10 and the stator 30, thereby achieving the dispersion and mixing of the slurry.

[0090] Of course, in some embodiments, the number of rotor rings 13 is two and the number of stator rings 33 is three. Along the radial direction Y of the dispersion mechanism 300, each rotor ring 13 is disposed between two adjacent stator rings 33. Thus, on the one hand, based on the provision of a suitable number of rotor rings 13 and stator rings 33, a stronger shear force and a larger impact area can be provided, the range of action of the shear force and the friction force can be increased, and more efficient slurry dispersion and mixing can be achieved, thereby improving the dispersion effect and dispersion efficiency of the dispersion mechanism 300, and improving the quality of the slurry; on the other hand, based on the provision of each rotor ring 13 between two adjacent stator rings 33, the flow path and velocity distribution of the slurry fluid can be optimized, making the fluid more uniform during the dispersion process, reducing the phenomenon of slurry swirling due to uneven velocity, reducing the depth of the vortex, and improving the circulation effect of the slurry.

[0091] It should be noted that the number of rotor rings 13 and the number of stator rings 33 are only used for illustration. The number of rotor rings 13 and the number of stator rings 33 can be set according to the size parameters of the circulation tank 100, the volume of the slurry to be dispersed, the viscosity and other factors, and the embodiment of the present application does not specifically limit it. For example, in some embodiments, the rotor ring 13 and the stator ring 33 are each set to one. The stator ring 33 can be set on the outside of the rotor ring 13; or, the stator ring 33 can also be set on the inside of the rotor ring 13.

[0092] The rotor ring 13 is provided in plurality, and the first shear grooves 131 of two adjacent rotor rings 13 are staggered along the radial direction Y of the circulating pulping device 1000; and / or, the stator ring 33 is provided in plurality, and the second shear grooves 331 of two adjacent stator rings 33 are staggered along the radial direction Y of the circulating pulping device 1000. Therefore, 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, ensuring that the slurry can be effectively sheared in the entire shear flow channel of the dispersion mechanism 300, thereby improving the dispersion uniformity of the slurry; on the other hand, when the fluid flows between the stator 30 and the rotor 10, it is subjected to a high degree of shearing, is broken and dispersed, and is continuously redistributed, extending the shear path, and can effectively increase the shear area, thereby enhancing the shear force, and further improving the shear dispersion effect.

[0093] In this embodiment, a plurality of stator rings 33 are provided, and the thickness of the plurality of stator rings 33 gradually increases from the inside to the outside. Therefore, on the one hand, since the centrifugal force generated by the rotor 10 on the slurry during high-speed rotation gradually increases from the inside to the outside, the present application gradually increases the structural strength of the stator ring 33 from the inside to the outside by providing a plurality of stator rings 33 with a thickness gradually increasing from the inside to the outside, thereby preventing the outer stator ring 33 from being deformed and improving the shearing effect and dispersion effect of the dispersion mechanism 300.

[0094] Along the radial direction Y of the dispersion mechanism 300, the rotor ring 13 and the stator ring 33 are alternately arranged at equal intervals; 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. Therefore, on the one hand, based on the setting of the rotor ring 13 and the stator ring 33 being alternately arranged at equal intervals so as to make the shear gap 403 consistent, the shear force on the slurry during the dispersion process is uniform, so that the slurry can be more evenly dispersed inside the dispersion mechanism 300, and the unevenness of the slurry during the dispersion process is reduced, thereby improving the quality of the slurry, and making the relative area between the rotor ring 13 and the stator ring 33 larger, thereby increasing the relative shear volume and improving the dispersion effect of the dispersion mechanism 300; on the other hand, based on the setting of the first shear groove 131 The width of the dispersion mechanism 300 in the circumferential direction Z is equal to the width of the second shear groove 331 in the circumferential direction Z of the dispersion mechanism 300, so that the shear force and friction force to which the slurry is subjected when passing through the first shear groove 131 and the second shear groove 331 are relatively uniform, reducing the unevenness of the slurry during the dispersion process, thereby improving the quality of the slurry; 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, excessive shearing of the material by the rotor 10 can be reduced.

[0095] It should be noted that the description of "equal" described in the present application may include situations where the shear gaps 403 are approximately equal due to processing errors, measurement errors, etc. For example, the shear gaps 403 remain consistent in the radial direction Y of the dispersion mechanism 300, which may include situations where any two shear gaps 403 are the same in the radial direction Y of the dispersion mechanism 300, and also include situations where any two shear gaps 403 are approximately the same in the radial direction Y of the dispersion mechanism 300. The width of the first shear groove 131 is equal to the width of the second shear groove 331, which may also include situations where the width of the first shear groove 131 is approximately the same as the width of the second shear groove 331.

[0096] For example, in this embodiment, the stator ring 33 located at the outermost side of the stator base 31 is located outside the outermost rotor ring 13. Therefore, when the rotor 10 rotates at high speed, the slurry can form a specific flow path in the circulation tank 100 through the guidance of the stator ring 33, better control the flow of the slurry, and ensure that the slurry can be subjected to stronger hydraulic shear, centrifugal extrusion, high-speed cutting, impact and grinding when passing through the narrow gap between the rotor and the stator, 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 set as the stator ring 33, so as to reduce mechanical vibration, reduce airflow interference and balance the dynamic load of the rotor 10 during mechanical operation, reduce vibration and noise caused by imbalance, thereby reducing noise, and then making the dispersion mechanism 300 generate less noise in the process of dispersing the slurry.

[0097] 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. Therefore, the outermost side of the dispersion mechanism 300 is set to the rotor ring 13, thereby increasing the slurry flow rate sprayed by the second shear groove 331 of the outermost stator ring 33, improving the material absorption and discharge capabilities of the dispersion mechanism 300, promoting the mixing and dispersion of the slurry, improving the dispersion efficiency of the dispersion mechanism 300, and better realizing the slurry to circulate and reciprocate in the circulation tank 100.

[0098] Exemplarily, in this embodiment, the top of the impeller 12 extends into the guide channel 401, the diameter of the top of the guide channel 401 is smaller than the diameter of the bottom of the guide channel 401, and the free end of the impeller blade 122 is arranged close to the inner wall of the guide channel 401. Therefore, based on extending the top of the impeller 12 into the inner cavity of the guide channel 401, on the one hand, the impeller 12 is prevented from being affected by the external slurry flow of the dispersion mechanism 300 when rotating, thereby improving the flow stabilization effect and strengthening the shearing effect of the stator ring 33 and the rotor ring 13 on the slurry; on the other hand, the guide channel 401 can also block the solid matter in the slurry outside the dispersion mechanism 300 from directly colliding with the impeller blades 122, thereby improving the service life of the impeller 12; on the other hand, based on the fact that the diameter of the top of the guide channel 401 is smaller than the diameter of the bottom of the guide channel 401, the free end of the impeller blade 122 is arranged close to the inner wall of the guide channel 401, so that most of the fluid slurry is pressed into the stator ring 33 and the rotor ring 13 at the bottom through the impeller blades 122 for shearing and dispersion, thereby improving the dispersion uniformity of the slurry.

[0099] Of course, in some embodiments, the top of the impeller 12 can also be located outside the inner cavity of the guide channel 401. Therefore, on the one hand, the guide channel 401 can be used as an inlet for the slurry. In the embodiment of the present application, the impeller 12 is arranged outside the guide channel 401, thereby improving the smoothness of the slurry entering the interior of the dispersion mechanism 300 and improving the material absorption capacity of the dispersion mechanism 300.

[0100] Please also read Figure 3 , Figure 6 and Figure 7 , Figure 6 yes Figure 2 A schematic structural diagram of the rotor 10 of the dispersion mechanism 300; Figure 7 yes Figure 2 The figure is a cross-sectional view of the dispersion mechanism 300 in the axial direction X of the circulating pulping device 1000. The rotor ring 13 and the impeller 12 are arranged on the same side of the rotor base 11, so as to facilitate the processing and manufacturing 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 dispersion mechanism 300 is reasonable and the structure is compact. Of course, in some embodiments, the impeller 12 can be arranged on both sides of the rotor base 11 in the axial direction X of the circulating pulping device 1000. The rotor ring 13 can be arranged on both sides of the rotor base 11 in the axial direction X of the circulating pulping device 1000.

[0101] In some embodiments, a plurality of auxiliary blades 14 are provided on the bottom wall of the rotor base 11 facing away from the impeller 12. The plurality of auxiliary blades 14 are arranged along the circumferential direction Z of the circulating pulping device 1000, and are extended along the radial direction Y of the circulating pulping device 1000. Thus, on the one hand, the plurality of auxiliary blades 14 rotate synchronously with the rotation of the rotating shaft 21, so as to realize the flow state of the slurry at the bottom of the rotor 10 pushed by the auxiliary blades 14, and this flow state can improve the dispersion and mixing effect, and avoid the bottom retention of the slurry rotor 10, thereby improving the mixing effect of the slurry; on the other hand, the auxiliary blades 14 cooperate with the stator 30, the guide member 41 and the circulation tank 100 to produce a function similar to that of a centrifugal pump, and the centrifugal effect produced by the auxiliary blades 14 will accelerate the slurry at the bottom of the rotor ring 13 to flow to the outside, so that the process of the slurry passing through the rotor ring 13 becomes rapid and easy, thereby effectively compensating for the kinetic energy loss caused by the addition of the rotor ring 13.

[0102] 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 the extension path of the blade 122, so as to facilitate the processing and manufacturing of the rotor 10. Of course, in some 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 and the extension path of the blade 122 may also be different.

[0103] Exemplarily, in this embodiment, the guide member 41 includes a guide sleeve 412 and a mounting plate 411. The edge of the bottom of the guide sleeve 412 is connected to the mounting plate 411, and the side of the mounting plate 411 facing away from the guide sleeve 412 is fixedly connected to the stator base 31. A guide surface 4121 is provided at the bottom of the outer wall of the guide sleeve 412. The guide surface 4121 is connected to the outer wall of the guide sleeve 412 and the top wall of the mounting plate 411 facing away from the stator base 31. The guide surface 4121 is inclined relative to the central axis of the guide sleeve 412 and is configured as a plane or a curved surface. In some embodiments, the guide member 41 only includes the guide sleeve 412, that is, the guide member 41 is configured as the guide sleeve 412. The guide sleeve 412 is extended around the edge of the through hole 311 toward the side facing away from the stator ring 33. The guide surface 4121 is connected to the outer wall of the guide sleeve 412 and the top wall of the stator base 31 facing away from the stator ring 33. Therefore, on the one hand, the guide surface 4121 can guide the slurry fluid, so that the slurry flows smoothly and steadily at the corners of the guide sleeve 412 and the stator base 31 or the mounting plate 411, the slurry transmission capacity is stronger, the flow resistance is smaller, the dead angle is avoided to cause slurry residue, and the circulation capacity of the slurry is improved. Specifically, the guide sleeve 412 is connected to the stator base 31 or the mounting plate 411 in an arc shape. Therefore, the stator 30 can reduce stress concentration at the corners of the guide sleeve 412 and the stator base 31 or the mounting plate 411, and improve the connection strength of the guide sleeve 412 and the stator base 31 or the mounting plate 411; on the other hand, it prevents the impeller 12 from colliding with the corner formed by the connection between the guide sleeve 412 and the stator base 31, and improves the stability and reliability of the dispersion mechanism 300.

[0104] In this embodiment, the guide member 41 and the stator 30 are independently arranged and fixedly connected. Specifically, the bottom wall of the mounting plate 411 facing away from the guide sleeve 412 is provided with a mounting groove 4111 for mounting the stator base 31. Thus, on the one hand, the assembly efficiency and connection reliability between the guide member 41 and the stator 30 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 of the guide member 41 and the stator base 31 of the stator 30 are fixedly connected together by a locking member 44. Optionally, the guide member 41 is configured as an integral structure. Specifically, the guide sleeve 412 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, etc. In some other embodiments, the mounting plate 411 can be omitted, for example, the mounting plate 411 and the stator base 31 can also be integrated into an integral structure. Specifically, the guide sleeve 412 may also be integrally formed with the stator base 31 .

[0105] In some embodiments, a reinforcing structure 413 is provided on the end surface of the flow guide 41 facing away from the stator base 31. The reinforcing structure 413 is configured as an arc chamfer or an arc curling. Thus, on the one hand, the setting of the arc chamfer or the arc curling can reduce stress concentration, reduce the force of the fluid slurry on the guide sleeve 412, and improve the reliability and stability of the connection between the stator 30 and the circulation tank 100; on the other hand, the setting of the arc chamfer or the arc curling 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 of the slurry.

[0106] In this embodiment, the free end of the guide sleeve 412 is provided with an arc chamfer. Specifically, the surface of the reinforcing structure 413 is configured as an arc surface that protrudes 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. The first arc surface 4131 and the second arc surface 4132 are smoothly transitionally connected, thereby, the slurry 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.

[0107] Exemplarily, in this embodiment, 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, the impeller 12 is configured as a conical structure. Along the radial direction Y of the circulating pulping equipment 1000, the radial dimension of the impeller 12 gradually increases from the suction end toward the discharge end. As a result, the slurry can flow from the suction end of the impeller 12 to the discharge end of the impeller 12. Since the radial dimension of the impeller 12 gradually increases from the suction end toward the discharge end, the flow rate of the slurry is gradually increased, and the pressure is gradually reduced, 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 eddies and turbulence, and thus reduces mechanical vibration and fluid dynamic noise.

[0108] Along the radial direction Y of the circulating pulping equipment 1000, the radial dimension of the guide sleeve 412 gradually increases from the suction end toward the discharge end. On the one hand, the free end of the impeller blade 122 is arranged close to the inner wall of the guide sleeve 412, and then most of the fluid slurry is pressed into the stator ring 33 and the rotor ring 13 at the bottom through the impeller blade 122 for shearing and dispersion, thereby improving the slurry dispersion ability; on the other hand, the guide sleeve 412 is conical or truncated cone-shaped, which can expand the dispersion area of ​​the slurry, reduce the kinetic energy of the slurry entering the material, and prevent the slurry from being unevenly dispersed or the dispersion mechanism 300 from being damaged due to excessive kinetic energy when entering the disperser; on the other hand, it prevents the impeller 12 from colliding with the corner formed at the connection between the guide sleeve 412 and the stator base 31, thereby improving the working stability and reliability of the dispersion mechanism 300. Of course, the diameter of the top of the guide sleeve 412 may also be equal to the diameter of the bottom of the guide sleeve 412, that is, the diameter of the guide sleeve 412 may remain unchanged from top to bottom (that is, from the suction end to the discharge end).

[0109] Specifically, the base 121 is configured as a truncated cone. It should be noted that the impeller blades 122 can be configured as twisted blades. Twisted blades refer to blades that are gradually twisted from bottom to top along their own height direction. In the present embodiment, twisted blades refer to blades whose surface is a bidirectionally curved structure, and twisted blades are also called spatial curved surfaces or hyperbolic blades. The cross-section of the base 121 along the radial direction Y of the circulating pulping equipment 1000 gradually increases from the suction end toward the discharge end. The side wall of the base 121 is configured as a curved surface. The meridian flow line of the base 121 from the suction end to the discharge end is a curve that bends inward relative to the central axis of the base 121. The meridian flow line is roughly arc-shaped.

[0110] 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. The cross section of the base 121 along the radial direction Y of the circulating pulping equipment 1000 does not change from the suction end to the discharge end. The side wall of the base 121 is configured as a cylindrical surface. The meridian flow line of the base 121 from the suction end to the discharge end is parallel to the central axis of the base 121. The impeller blades 122 can also be replaced with cylindrical blades. Thereby, the processing and manufacturing of the impeller 12 is facilitated, cleaning is facilitated, and the stability of the operation of the impeller 12 is improved. For another example, the base 121 can also be configured as a truncated cone, and the impeller blades 122 are configured as cylindrical blades.

[0111] It should be noted that a cylindrical blade refers to a structure in which the surface of the blade is unidirectionally curved. A cylindrical blade is also called a single-curvature blade or an oblique blade.

[0112] In some other embodiments, the impeller blade 122 may also be, but is not limited to, a straight blade. A straight blade refers to a structure in which the shape and installation angle of the blade remain unchanged throughout the blade height range, and the centroid line of the cross section is consistent with the radial direction of the impeller 12. Specifically, in a projection plane perpendicular to the central axis of the base 121, the impeller blade 122 extends from the inside to the outside along the radial direction of the impeller 12. For example, in some embodiments, in a projection plane parallel to the central axis of the base 121, the extension direction of the straight blade may be parallel to the central axis of the base 121. In some other embodiments, in a projection plane parallel to the central axis of the base 121, the extension direction of the straight blade may also intersect with the central axis of the base 121. In other words, in a projection plane parallel to the central axis of the base 121, the extension direction of the straight blade may also be set at an angle to the central axis of the base 121. The impeller blade 122 may also adopt other blade structures with centrifugal effect, which is not specifically limited in the embodiments of the present application.

[0113] In some embodiments, the dispersion mechanism 300 further includes 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 circulation tank 100. The plurality of connecting rods 42 are arranged at intervals along the circumferential direction Z of the circulation pulping device 1000 and surround the outer side of the stator ring 33 disposed at the outermost side. Thus, based on the setting of the stator base 31 and the circulation tank 100 through a plurality of connecting rods 42, on the one hand, the stator base 31 is set above the rotor base 11, so that the stator base 31 can guide part of the slurry outside the dispersion mechanism 300, which is convenient for the slurry to circulate and reciprocate in the circulation tank 100; on the other hand, the setting of the connecting rod 42 better realizes the transmission and distribution of force, thereby enhancing the stability and bearing capacity of the stator 30, improving the reliability and stability of the connection between the stator 30 of the dispersion structure and the circulation tank 100, and reducing noise; on the other hand, based on the connection rod 42 surrounding the outer side of the stator ring 33, the shearing effect and drainage effect on the slurry are realized, the shearing effect on the slurry is improved, and the overall stability of the dispersion mechanism 300 is enhanced. In this embodiment, a plurality of connecting rods 42 are arranged around the outermost side of all stator rings 33.

[0114] In some embodiments, the dispersion mechanism 300 further includes 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 circulation tank 100. The connecting rod 42 is inserted into the positioning sleeve 43. Thus, on the one hand, the positioning sleeve 43 can play the functions of axial positioning and circumferential positioning for the installation of the connecting rod 42, improve the assembly efficiency, and improve the reliability of the connection between the connecting rod 42 and the circulation tank 100, and avoid the displacement of the stator 30; on the other hand, the setting of the positioning sleeve 43 better realizes the transmission and distribution of force, thereby reducing the flow resistance, and enhancing the stability and bearing capacity of the stator 30, and improving the reliability and stability of the connection between the stator 30 of the dispersion structure and the circulation tank 100. In some embodiments, an internal thread may be provided in the positioning sleeve 43, and the connecting rod 42 is provided with an external thread that matches the internal thread of the positioning sleeve 43, thereby further improving the reliability and stability of the connection between the stator 30 and the circulation tank 100.

[0115] The connecting rod 42 is independently arranged with the stator base 31 and the circulation tank 100. Specifically, the connecting rod 42 is detachably connected with the stator base 31 or the mounting plate 411. The connecting rod 42 includes a connecting rod portion 421 and a stopper portion 422. The stopper portion 422 is arranged at one end of the connecting rod portion 421. The radial dimension of the stopper portion 422 is larger than the radial dimension of the connecting rod portion 421, and the stopper portion 422 stops with the stator base 31 or the mounting plate 411, so as to facilitate the alignment and assembly of the connecting rod 42 with the stator base 31 or the mounting plate 411, and prevent the connecting rod 42 from being disconnected from the stator base 31 or the mounting plate 411.

[0116] Exemplarily, in this embodiment, the stator base 31 is fixed to the circulation tank 100 through the guide member 41 and the connecting rod 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 rod 42, thereby realizing an indirect connection between the stator base 31 and the circulation tank 100. Specifically, the connecting rod portion 421 of the connecting rod 42 is penetrated through the mounting plate 411 and locked to the bottom of the circulation tank 100, and the stopper portion 422 of the connecting rod 42 is exposed relative to the top wall of the mounting plate 411 and is stopped by the mounting plate 411.

[0117] 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 smaller than the distance between the stator base 31 and the circulation tank 100. Thus, on the one hand, the mounting plate 411 can guide 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 toward the inner wall of the circulation tank 100 and flows along the inner wall of the circulation tank 100, extending 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 flow guide 41 and 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 of the mounting plate 411 away from the guide sleeve 412 is fixed to the circulation tank 100 by the connecting rod 42. Specifically, the connecting rod 42 is connected to the outside of the area of ​​the mounting plate 411 corresponding to the stator base 31 , thereby avoiding the problem of interference between the connecting rod 42 and the locking member 44 and avoiding prolonging the effect on the stator 30 .

[0118] Exemplarily, in this embodiment, a plurality of connecting rods 42 are detachably connected to the mounting plate 411. Specifically, the connecting rod 42 passes through the mounting plate 411 and is locked to the bottom wall of the bottom of the circulation tank 100. The stopper 422 of the connecting rod 42 stops with the mounting plate 411, thereby facilitating the alignment and assembly of the connecting rod 42 and the mounting plate 411, and preventing the connecting rod 42 from being disconnected from 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.

[0119] In some embodiments, the stator 30 further includes a locking structure. The connecting rod 42 is locked with the locking structure to achieve a fixed connection between the stator base 31 and the circulation tank 100. Specifically, the connecting rod 42 is provided with a threaded hole that matches the locking structure along the axial direction X of the dispersion mechanism 300. The locking structure passes through the bottom wall of the bottom of the circulation tank 100 and is locked in the threaded hole. Thus, on the one hand, the stator 30 is fixedly connected to the circulation tank 100, which is convenient for installation; on the other hand, the connecting rod 42 can increase the threaded length, thereby improving the reliability of the connection between the dispersion structure and the circulation tank 100. Of course, in some embodiments, the connecting rod 42 is configured as a bolt, and the locking structure is configured as a nut that is fixed with the bolt, so as to facilitate the assembly of the connecting rod 42 and the circulation tank 100. Specifically, the side wall of the end of the connecting rod 42 facing away from the stator base 31 or the mounting plate 411 is provided with an external thread, and the nut is provided with an internal thread that matches the external thread of the connecting rod 42. The end of the connecting rod 42 facing away from the stator base 31 or the mounting plate 411 passes through the bottom wall of the bottom of the circulation tank 100 and is screwed and fixed with the locking member 44. In other embodiments, the connecting rod 42 is provided with a threaded hole inside, and the outer wall of the connecting rod 42 is provided with an external thread.

[0120] Exemplarily, in this embodiment, the top end surface of the connecting rod 42 is higher than the top wall of the mounting plate 411. The stopper 422 of the connecting rod 42 extends out of the top wall of the mounting plate 411 and stops with the top wall of the mounting plate 411, thereby facilitating the alignment and assembly of the connecting rod 42, the mounting plate 411 and the circulation tank 100. When the connecting rod 42 is connected to 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 stopper 422 of the connecting rod 42 extends out of the top wall of the stator base 31 and stops with the top wall of the stator base 31.

[0121] In some embodiments, a plurality of connecting rods 42 are located on a side of the stator base 31 or the mounting plate 411 close to the rotor base 11. Thus, on one hand, a plurality of connecting rods 42 are located on a 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 and hinder the flow of the slurry, improving the smoothness of the slurry flow, promoting the reciprocating circulation of the slurry in the circulation 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 rod 42 is 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 rod 42 and the stator base 31 or the mounting plate 411, thereby enhancing the working stability of the dispersion mechanism 300 and reducing noise; the connecting rod 42 can also be integrally formed with the stator base 31 or the mounting plate 411, thereby facilitating the maintenance and replacement of the connecting rod 42 and the stator base 31 or the mounting plate 411, and facilitating the processing and manufacturing of the connecting rod 42 and the stator base 31 or the mounting plate 411.

[0122] A 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 connecting holes for fixing the connecting rods 42, wherein the connecting holes are blind holes. Specifically, the top wall of the stator base 31 or the mounting plate 411 is configured as a continuous flat surface. Thus, on the one hand, the completion of the top wall of the stator base 31 or the mounting plate 411 is ensured, the problem of material accumulation at the connection between the stator base 31 or the mounting plate 411 and the connecting rods 42 is avoided, and cleaning is convenient; on the other hand, the smoothness of the slurry flow is improved, the slurry is promoted to perform reciprocating circulation in the circulation tank 100, the circulation capacity of the slurry is improved, and the dispersion effect and mixing effect of the slurry are improved.

[0123] 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 surface of the connecting rod 42 is connected to 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 stopper 422 of the connecting rod 42 is accommodated in the countersunk hole. Thus, 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, and the positioning and installation are convenient; on the other hand, the smoothness of the slurry flow is improved, and the slurry is promoted to reciprocate in the circulation tank 100, thereby 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 protruded relative to the top wall of the stator base 31 or the mounting plate 411.

[0124] The connecting rod portion 421 of the connecting rod 42 can be configured as a cylindrical rod, and the stopper 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 equipment 1000, the portion of the connecting rod 42 corresponding to the stator ring 33 or the rotor ring 13 is configured as a cylindrical rod. Specifically, the cross section of the connecting rod 42 along the axial direction X perpendicular to the dispersion mechanism 300 is circular. Therefore, on the one hand, the cylindrical rod can make the forces in all directions the same, so that the connecting rod 42 has the maximum bending inertia moment under the eccentric pressure in all directions, and improves the stability and reliability of the connection between the stator 30 and the circulation 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 cross section of the connecting rod 42 along the axial direction X perpendicular to the dispersion mechanism 300 is teardrop-shaped. Thus, the teardrop-shaped convex surface of the connecting rod 42 can accelerate the flow rate of the slurry, thereby improving the circulation capacity of the dispersion mechanism 300, promoting the reciprocating circulation of the slurry and improving the uniformity of the slurry. Of course, in some other embodiments, the cross section of the connecting rod 42 along the axial direction X perpendicular to the dispersion mechanism 300 can also be a regular polygon or other regular or irregular shapes, which is not specifically limited in this application. The shape of the positioning sleeve 43 is compatible with the shape of the connecting rod 42. For example, the cross section of the positioning sleeve 43 along the axial direction X perpendicular to the dispersion mechanism 300 can also be circular or teardrop-shaped, which will not be repeated here.

[0125] In some embodiments, a shearing structure 423 is provided on the connecting rod 42. Thus, the shearing structure 423 is used to provide shearing force and breaking force for the slurry when the rotor 10 rotates relative to the stator 30, thereby improving the dispersion effect of the dispersion mechanism 300, increasing the contact area between the slurry and the dispersion mechanism 300, reducing the pressure exerted by the slurry 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, it can be convexly provided 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 convex points, concave points, spiral convex patterns, spiral concave patterns, annular convex patterns, and annular concave patterns. The shearing structure 423 is streamlined, thereby reducing the flow resistance of the slurry, increasing the flow rate of the slurry, and reducing the slurry residue on the side wall of the connecting rod 42. Exemplarily, in this embodiment, the shearing structure 423 is provided on the outer side wall of the positioning sleeve 43.

[0126] Optionally, in this embodiment, the shear structure 423 and the connecting rod 42 are an integrated structure to increase the structural stability of the shear structure 423 and the connecting rod 42, thereby improving the dispersion stability of the dispersion mechanism 300. Of course, in some embodiments, the shear structure 423 and the connecting rod 42 are detachable connection structures, so that the shear structure 423 can be set in different areas of the connecting rod 42 according to actual needs.

[0127] In some embodiments, a heat dissipation structure is provided on the connecting rod 42. Thus, since the rotor 10 of the dispersion mechanism 300 generates a large amount of heat by friction with the slurry during high rotation, the heat dissipation structure can conduct the heat of the slurry to the outside of the circulation 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 heat dissipation structure as a whole; or, the surface of the connecting rod 42 is provided with a heat dissipation structure.

[0128] In some embodiments, the dispersion mechanism 300 also includes a connecting base 45. The connecting base 45 is sealed and connected to the inner wall of the bottom of the circulation tank 100. The connecting base 45 is arranged opposite to the stator base 31 or the mounting plate 411, and is connected to the stator base 31 or the mounting plate 411 through a connecting rod 42 to form a dispersion chamber 402, and the rotor 10 is rotatably arranged in the dispersion chamber 402. Therefore, 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 circulation 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 slurry in the radial direction of the circulation tank 100, so that most of the slurry thrown out by the dispersion mechanism 300 flows toward the inner wall of the circulation tank 100, and flows along the inner wall of the circulation tank 100, extending 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 improving the dispersion effect and mixing effect of the slurry; on the other hand, the connection The base 45 or the mounting plate 411 is connected to the stator base 31 through the connecting rod 42 to form a dispersion chamber 402, so that most of the slurry in the dispersion chamber 402 is discharged from the dispersion mechanism 300 after being sheared by the stator ring 33 and the rotor ring 13, avoiding the problem that the slurry in the dispersion chamber 402 is not sheared by the stator ring 33 and the rotor ring 13 and leaks into the inner cavity of the circulation tank 100, and weakening the impact of the slurry outside the dispersion mechanism 300 on the internal structure of the dispersion mechanism 300, 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 connection base 45 and the mounting seat 24 can be integrally formed; or, the connection base 45 and the mounting seat 24 are fixedly connected by a locking structure, which is not specifically limited in the embodiment of the present application.

[0129] Please refer again Figure 1 and Figure 3 , illustratively, in the present embodiment, a mounting hole 102 for mounting the connecting base 45 is provided at the bottom of the circulation tank 100. Specifically, the edge of the connecting base 45 is sealed and connected to the mounting hole 102. The connecting base 45 and the circulation tank 100 may be directly connected; or, they may be fixedly connected by a third-party component, which is not specifically limited in the present embodiment of the application. The top wall of the connecting base 45 facing the stator base 31 serves as a part of the bottom wall of the circulation tank 100, so that the dispersion mechanism 300 and the circulation tank 100 are mounted on the edge, and the gap between the connecting base 45 and the bottom wall of the circulation tank 100 is reduced.

[0130] 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 inclined relative to the tank side wall 1013 toward one side of the dispersion mechanism 300, and is smoothly connected with the top wall of the connection base 45 toward the stator base 31. Therefore, on the one hand, the tank bottom wall 1012 is inclined to guide the slurry to flow upward along the side wall of the circulation tank 100, thereby improving the circulation capacity of the dispersion mechanism 300; on the other hand, the tank bottom wall 1012 is smoothly connected with the top wall of the connection base 45 toward the stator base 31, thereby avoiding the problem that part of the slurry is deposited at the bottom and affects the uniformity of the slurry, improving the fluidity and continuity of the slurry, promoting the reciprocating circulation of the slurry and improving the uniformity of the slurry.

[0131] Exemplarily, in this embodiment, a boss portion 451 is provided at the position corresponding to the connection of the connection base 45, and one end of the connection rod 42 facing away from the stator base 31 is fixedly connected to the boss portion 451. Thus, the thickness of the connection base 45 is increased, and the reliability and stability of the connection between the connection rod 42 and the connection base 45 are improved. The boss portion 451 is in a closed loop shape. The connection base 45 forms a first flange portion 452 and a second flange portion 453 on both sides of the boss portion 451, respectively, and the first flange portion 452 and the second flange portion 453 are each sealed and connected to the connection base 45 and the circulation tank 100 through a sealing plate 46. Optionally, a sealing groove 4501 for accommodating a seal is provided on the first flange portion 452 and the second flange portion 453, thereby improving the sealing connection effect between the dispersion mechanism 300 and the circulation tank 100. Of course, in some embodiments, the boss portion 451 can be omitted from the connection base 45, so that the top wall of the connection base 45 is flat, convenient for cleaning, and reduces the residue of slurry. The first flange 452 or the second flange 453 can also be omitted, and the structural setting of the connection base 45 can be adjusted according to actual conditions, and this application does not make specific restrictions. The second flange 453 is provided with a position avoidance port 4502 at the position corresponding to the discharge pipe 103, thereby conveniently avoiding the problem of assembly interference between the connection base 45 and the circulation tank 100; on the other hand, the position avoidance port 4502 can play a positioning role in the assembly of the connection base 45. Of course, in some embodiments, the position avoidance port 4502 and the connection base 45 can be arranged at intervals.

[0132] Please refer again Figure 1 and Figure 2In some embodiments, 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 inclined relative to the tank side wall 1013 toward one side of the dispersion mechanism 300, and is smoothly connected to the top wall of the connection base 45 toward the stator base 31. Therefore, on the one hand, the tank bottom wall 1012 is inclined to guide the slurry to flow upward along the side wall of the circulation tank 100, thereby improving the circulation capacity of the dispersion mechanism 300; on the other hand, the tank bottom wall 1012 is smoothly connected to the top wall of the connection base 45 toward the stator base 31, thereby avoiding the problem that part of the slurry is deposited at the bottom and affects the uniformity of the slurry, improving the fluidity and continuity of the slurry, promoting the reciprocating circulation of the slurry, and improving the uniformity of the slurry.

[0133] In this embodiment, the central axis of the dispersion mechanism 300 is coaxially arranged with the central axis P of the circulation tank 100, so that the slurry maintains a relatively stable circulation trajectory during the dispersion process of the dispersion mechanism 300, thereby realizing the uniform stirring of the slurry by the dispersion mechanism 300, while reducing the energy consumption of the dispersion mechanism 300, reducing the production cost, and making the dispersion mechanism 300 occupy a smaller space in the circulation tank 100, thereby improving the compactness of the structure. Of course, in some embodiments, the central axis of the dispersion mechanism 300 is spaced from the central axis P of the circulation tank 100 by a preset distance, so that when the dispersion mechanism 300 performs the dispersion work, the slurry forms a slurry flow layer of different speeds due to the radial asymmetric distribution, reduces the formation of large particle agglomerates, avoids the impact on the parts of the circulating pulping equipment 1000, reduces vibration and noise, and improves the mixing effect and dispersion effect of the slurry. The preset distance can be set according to actual conditions, and the embodiment of the present application is not specifically limited.

[0134] Please also read Figure 4 , Figure 8 and Fig. 9 , Figure 8 yes Figure 1 A schematic structural diagram of a second embodiment of the dispersion mechanism 300 of the circulating pulping equipment 1000; Fig. 9 yes Figure 84 is a cross-sectional view of the dispersion mechanism 300 in the axial direction X of the circulating pulping device 1000. In some embodiments, the flow guide 41 further includes a flow guide plate 414. The flow guide plate 414 is disposed at or near the outer edge of the stator base 31, and is tilted outwardly relative to the stator base 31 toward a side away from the stator ring 33. Thus, when the rotor 10 of the dispersion mechanism 300 rotates at a high speed, negative pressure is generated. Under the action of negative pressure, part of the slurry above the dispersion mechanism 300 is sucked into the dispersion mechanism 300 through the through hole 311 and is sheared and dispersed by the stator 30 and the rotor 10. Another part of the slurry above the dispersion mechanism 300 acts on the top wall of the stator base 31 and flows to the guide plate 414. Since the guide plate 414 guides the slurry, the setting of the guide plate 414 can promote the slurry to flow upward, thereby achieving better up and down flipping of the slurry in the circulation tank 100, improving the circulation capacity of the slurry, and improving the dispersion effect of the dispersion mechanism 300. Of course, in some other embodiments, the dispersion mechanism 300 can also omit the guide plate 414.

[0135] It should be noted that the term "outer edge" refers to the outer boundary of the stator base 31. Exemplarily, in the present embodiment, the guide plate 414 is extended from the outer edge of the stator base 31 toward the side wall of the circulation tank 100. Specifically, the guide plate 414 is arranged on the outer side wall of the stator base 31, so as to avoid the formation of a dead angle at the connection between the guide plate 414 and the stator base 31, which causes part of the slurry to be deposited in the dead angle and cannot participate in the circulation and increases the difficulty of cleaning the dead angle, and reduces the flow resistance of the slurry and improves the smoothness of the slurry flow. Of course, in some embodiments, the guide plate 414 can also be arranged on the top wall of the stator base 31; or, it can be embedded in the interior of the stator base 31. The arrangement of the guide plate 414 and the stator base 31 can be arranged according to actual conditions, and this application does not make specific restrictions.

[0136] In this embodiment, the guide plate 414 is integrally formed with the stator base 31, thereby improving the reliability and stability of the connection between the 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 guide plate 414 is detachably connected to the stator base 31. Thus, on the one hand, it is convenient to install and replace different components to form different configurations, so that the dispersion mechanism 300 can quickly switch configurations to apply different scenarios; on the other hand, it is convenient for the maintenance and replacement of the guide plate 414 and the stator base 31, and convenient for the processing and manufacturing of the guide plate 414 and the stator base 31. The guide plate 414 and the stator base 31 can be detachably connected together by screwing, snapping, etc. The guide plate 414 and the stator base 31 can also be non-detachably connected together by bonding, welding, etc.

[0137] The guide plate 414 can be configured as a closed loop structure. For example, the number of guide plates 414 is set to one, and the guide plate 414 is arranged around the outer edge of the stator base 31. Specifically, the guide plate 414 can be configured as a hollow truncated cone. Of course, in some embodiments, the guide plate 414 can also be configured as an open loop structure. For example, the number of guide plates 414 is set to multiple, and multiple guide plates 414 are arranged at intervals along the outer edge of the stator base 31 and arranged around a circle. Each guide plate 414 can be configured as an arc plate.

[0138] Exemplarily, in the present embodiment, the guide plate 414 includes a guide surface connected to the top wall of the stator base 31. The connection between the guide surface and the top wall of the stator base 31 can be arranged in an arc, thereby reducing the flow resistance of the slurry, improving the smoothness of the slurry flow, promoting the slurry to reciprocate in the circulation 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 guide surface and the top wall of the stator base 31 can also be arranged at a sharp angle to reduce the difficulty of processing and manufacturing. In some other embodiments, the guide surface and the top wall of the stator base 31 can also be connected by a transition surface, and the transition surface is inclined relative to the guide surface and the top wall of the stator base 31. The angle formed between the guide surface and the top wall of the stator base 31, wherein the angle is an obtuse angle. Therefore, the included angle formed between the guide surface and the top wall of the stator base 31 is an obtuse angle, so as to enable the slurry to pass more smoothly, thereby improving the circulation capacity of the slurry.

[0139] The flow guide plate 414 further 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 connected at a sharp angle.

[0140] Please also read Figure 1 , Figure 3 and Fig.10 , Fig.101 is a cross-sectional view of a circulating pulping device 1000 provided in a second embodiment of the present application. In the second embodiment, the circulating pulping device 1000 further includes a stirring mechanism 500, the stirring mechanism 500 includes a stirring member 50 and a spoiler 60, the stirring member 50 includes a stirring shaft 51 and a plurality of stirring blades 52 disposed on the stirring shaft 51, the spoiler 60 includes a plurality of baffles 62, and the plurality of baffles 62 are staggered with the plurality of stirring blades 52. Therefore, based on the dispersion mechanism 300 being arranged at the bottom of the circulation tank 100 and the stirring mechanism 500 being arranged at the top of the circulation tank 100, the stirring blades 52 of the stirring mechanism 500 and the baffle 62 of the spoiler 60 are staggered to achieve stirring of the slurry to be stirred at the top of the circulation tank 100, thereby avoiding the accumulation and agglomeration of the slurry at the top. At the same time, the setting of the baffle 62 can disrupt the slurry flow field in the circulation tank 100, prompting the slurry to be repeatedly stirred and mixed, and prompting the slurry fluid discharged from the dispersion mechanism 300 to form a good up and down flipping in the circulation tank 100, thereby improving the circulation capacity of the dispersion device and improving the uniformity of dispersion and mixing of the slurry fluid.

[0141] Exemplarily, in the present embodiment, the plurality of stirring blades 52 and the plurality of baffles 62 are each arranged to be inclined relative to the central axis of the stirring shaft 51. Along the axial direction X of the circulation tank 100, the adjacent stirring blades 52 and the baffles 62 form a stirring unit 710. In the stirring unit 710, the inclination direction of the stirring blades 52 is opposite to the inclination direction of the baffles 62. Thus, on the one hand, the inclined stirring blades 52 and the baffles 62 can generate a greater shear force, more effectively break up the lumps in the slurry, and improve the mixing uniformity of the slurry; on the other hand, the inclined stirring blades 52 and the baffles 62 can effectively eliminate the dead corners in the stirring circulation tank 100, prevent the slurry from being deposited in the dead corners, and improve the slurry mixing effect; on another hand, based on setting the inclination direction of the stirring blades 52 and the inclination direction of the baffles 62 to be opposite in the same stirring unit 710, when the stirring shaft 51 drives the plurality of stirring blades 52 to rotate, the plurality of stirring blades 52 are arranged to be opposite to each other. The paddles 52 are used to guide the slurry toward the side close to the dispersion mechanism 300, and the multiple baffles 62 are used to guide the slurry toward the side away from the dispersion mechanism 300, so that the slurry flowing downward through the stirring blades 52 will collide with the baffles 62, interrupting the flow path of the slurry through the baffles 62, so as to extend the residence time of the slurry at the top of the circulation tank 100, and form an inside-bottom-outside-up circulating mixture at the top of the circulation tank 100, thereby prompting the stirring mechanism 500 to fully stir the slurry, so that the slurry at the top of the circulation tank 100 is stirred more evenly and has better dispersion.

[0142] Exemplarily, in a projection plane parallel to the central axis of the stirring shaft 51, the stirring blade 52 is arranged to be tilted upward relative to the central axis of the stirring shaft 51, and the baffle 62 is arranged to be tilted downward relative to the central axis of the stirring shaft 51. It should be noted that the inclination direction of the stirring blade 52 is opposite to the inclination direction of the baffle 62, which may include a situation where the inclination angle of the stirring blade 52 is the same or approximately the same as the inclination angle of the baffle 62, for example, the inclination direction of the stirring blade 52 and the inclination direction of the baffle 62 are mirror-symmetrical or approximately mirror-symmetrical relative to the direction parallel to the central axis of the stirring shaft 51. Of course, in some embodiments, the inclination direction of the stirring blade 52 is opposite to the inclination direction of the baffle 62, which may include a situation where the inclination angle of the stirring blade 52 is different from the inclination angle of the baffle 62.

[0143] In this embodiment, the central axis of the stirring shaft 51 is coaxially arranged with the central axis of the dispersion mechanism 300, so that the slurry discharged from the stirring mechanism 500 can be quickly pushed to the dispersion mechanism 300, shortening the flow path of the slurry and improving the material absorption capacity of the dispersion mechanism 300. Of course, in some embodiments, the central axis of the stirring shaft 51 is spaced apart from the central axis of the dispersion mechanism 300 by a preset distance. The preset distance can be set according to actual conditions, and the embodiments of the present application do not specifically limit it.

[0144] For example, in this embodiment, the spoiler 60 further includes a fixed shaft 61, which is fixed to the top of the circulation tank 100, and a plurality of baffles 62 are disposed on the fixed shaft 61, thereby improving the assembly efficiency of the spoiler 60 and the circulation tank 100, facilitating processing and manufacturing, maintenance, replacement, cleaning and other operations, and facilitating adjustment of the position of the spoiler 60. Specifically, the fixed shaft 61 and the stirring shaft 51 are both disposed on the tank cover 120.

[0145] Of course, in some embodiments, the fixed shaft 61 can be omitted, that is, the plurality of baffles 62 are fixed to the inner wall of the circulation tank 100. The plurality of baffles 62 can be directly fixed to the inner wall of the circulation tank 100; or, can be fixed to the inner wall of the circulation tank 100 through a connecting plate. In some other embodiments, the stirring mechanism 500 further includes a stirring frame 53, which is fixed to the free end of the stirring shaft 51, and the plurality of baffles 62 are arranged on the stirring frame 53, so that the stirring frame 53 can enhance the stirring effect of the stirring mechanism 500, and the baffles 62 are installed without the need for an additional fixed shaft 61, so that the overall structure of the stirring mechanism 500 is compact.

[0146] The stirring frame 53 is arranged around the outside of the stirring member 50 and the spoiler 60. Therefore, on the one hand, the stirring frame 53, the stirring member 50 and the spoiler 60 cooperate to stir the slurry to prevent the slurry from settling, the stirring of the stirring frame 53 is gentler, and the slurry is protected, and the materials can be fully mixed, thereby improving the mixing quality and thus improving the production efficiency; on the other hand, the overall structural layout of the stirring mechanism 500 is reasonable and compact.

[0147] The stirring frame 53 includes a plurality of stirring arms 530, each of which includes a first stirring portion 531 and a second stirring portion 532. One end of the first stirring portion 531 is fixedly connected to the stirring shaft 51, and the other end of the first stirring portion 531 is fixedly connected to the second stirring portion 532, and the second stirring portion 532 is disposed close to the side wall of the circulation tank 100. Thus, the second stirring portion 532 can not only provide stirring centripetal force for the slurry to be stirred, but also scrape off the slurry to be stirred adhering to the inner wall of the circulation tank 100, thereby improving the stirring effect.

[0148] In some embodiments, the stirring frame 53 further includes a scraping portion 54. The scraping portion 54 is disposed at the first stirring portion 531 close to the bottom wall of the circulation tank 100 and / or the second stirring portion 532 close to the side wall of the circulation tank 100, and is used to scrape off the slurry adhering to the inner wall of the circulation tank 100, thereby improving the scraping effect of the slurry attached to the wall, and pushing the slurry to the central area of ​​the circulation tank 100, thereby improving the circulation effect and dispersion effect of the slurry.

[0149] In some embodiments, the scraping portion 54 can also be arranged on the first stirring portion 531 close to the top wall of the guide member 41 or the top wall of the stator base 31, and is used to scrape off the slurry adhering to the top wall of the guide member 41 or the top wall of the stator base 31, thereby improving the scraping effect of the slurry attached to the wall, and pushing the slurry to the central area of ​​the circulation tank 100, thereby improving the circulation effect and dispersion effect of the slurry.

[0150] The embodiments of the present application are introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A circulating pulping device (1000), characterized in that: include: A circulation tank (100) is provided with a circulation chamber (101); A dispersion mechanism (300) is arranged at the bottom of the circulation tank (100) and is located in the circulation chamber (101). The dispersion mechanism (300) comprises a rotor (10) and a stator (30). The rotor (10) comprises a rotor base (11), an impeller (12) and at least one rotor ring (13). The impeller (12) has a suction end away from the rotor base (11) and a discharge end opposite to the suction end. The impeller (12) is disposed at the suction end. The radial dimension of the material end is smaller than or equal to the radial dimension of the impeller (12) at the material discharge end, and the impeller (12) comprises a base (121) arranged on the rotor base (11) and impeller blades (122) arranged on the side wall of the base (121); the rotor ring (13) is arranged around the impeller (12), and the rotor ring (13) is provided with a plurality of first shear grooves (131) along the circumferential direction (Z) of the circulating pulping device (1000); The stator (30) comprises a stator base (31) and at least one stator ring (33); the stator base (31) is fixed on the circulation tank (100) and is provided with a through hole (311) connected to the circulation chamber (101) and the plurality of first shear grooves (131); the stator ring (33) and the rotor ring (13) are alternately arranged along the radial direction (Y) of the circulation pulping device (1000); and a plurality of second shear grooves (331) connected to the plurality of first shear grooves (131) are provided along the circumferential direction (Z) of the circulation pulping device (1000); A flow guide (41), the flow guide (41) being fixedly connected to the stator base (31) and being located on a different side of the stator base (31) from the stator ring (33), the flow guide (41) being provided with a flow guide channel (401) communicating with the through hole (311).

2. The circulating pulping device (1000) according to claim 1, characterized in 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 circulation tank (100) is greater than or equal to 0.

1.

3. The circulating pulping device (1000) according to claim 1, characterized in that: The thickness of the rotor ring (13) along the radial direction (Y) of the circulating pulping equipment (1000) is a first thickness (D1), the thickness of the stator ring (33) along the radial direction (Y) of the circulating pulping equipment (1000) 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.

4. The circulating pulping device (1000) according to claim 3, 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.

5. The circulating pulping device (1000) according to claim 1, characterized in that: The slotting ratio of the first shearing slot (131) is greater than or equal to 0.

2.

6. The circulating pulping device (1000) according to claim 1, characterized in that: In the radial direction (Y) of the circulating pulping 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.

7. The circulating pulping device (1000) according to claim 1, characterized in that: In the radial direction (Y) of the circulating pulping device (1000), a shear gap (403) is formed between adjacent rotor rings (13) and stator rings (33), and the ratio of the volume of the shear gap (403) to the circulation flow of the shear gap (403) is greater than or equal to 1ms.

8. The circulating pulping device (1000) according to claim 1, characterized in that: The linear speed of the rotor (10) is 10 m / s-30 m / s.

9. The circulating pulping device (1000) according to claim 1, characterized in that: 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.

10. The circulating pulping device (1000) according to claim 1, characterized in that: The angle formed by the slotting direction of the first shearing groove (131) and the rotation direction (F) of the rotor (10) is a first angle, which is recorded as α; the angle formed by the slotting direction of the second shearing groove (331) and the rotation direction (F) of the rotor (10) is a second angle, which is recorded as β, wherein 90°≤α<180°, and 0°<β≤90°.

11. The circulating pulping device (1000) according to claim 10, characterized in that: 110°≤α≤160°，20°≤β≤70°。 12. The circulating pulping device (1000) according to claim 1, characterized in that: The stator (30) is 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 covered with a plastic structure.

13. The circulating pulping device (1000) according to claim 1, characterized in that: The rotor ring (13) and the impeller (12) are arranged on the same side of the rotor base (11).

14. The circulating pulping device (1000) according to claim 1, characterized in that: The rotor ring (13) is provided in plurality, and along the radial direction (Y) of the circulating pulping equipment (1000), the first shear grooves (131) of two adjacent rotor rings (13) are staggered; and / or, the stator ring (33) is provided in plurality, and along the radial direction (Y) of the circulating pulping equipment (1000), the second shear grooves (331) of two adjacent stator rings (33) are staggered.

15. The circulating pulping device (1000) according to claim 1, characterized in that: The stator ring (33) is provided in plurality, and the thickness of the plurality of stator rings (33) gradually increases from the inside to the outside.

16. The circulating pulping device (1000) according to claim 1, characterized in that: The rotor ring (13) located at the outermost side of the rotor base (11) is located inside the outermost stator ring (33).

17. The circulating pulping device (1000) according to claim 1, characterized in that: The top of the impeller (12) extends into the guide channel (401), the diameter of the top of the guide channel (401) is smaller than the diameter of the bottom of the guide channel (401), and the free ends of the impeller blades (122) are arranged close to the inner wall of the guide channel (401); or, the top of the impeller (12) is located outside the guide channel (401).

18. The circulating pulping device (1000) according to claim 1, characterized in that: The guide member (41) comprises a guide sleeve (412) and a mounting plate (411), the edge of the bottom of the guide sleeve (412) is connected to the mounting plate (411), the side of the mounting plate (411) facing away from the guide sleeve (412) is fixedly connected to the stator base (31), the bottom of the outer wall of the guide sleeve (412) is provided with a guide surface (4121), the guide surface (4121) is connected to the outer wall of the guide sleeve (412) and the top wall of the mounting plate (411) facing away from the stator base (31); or, The guide member (41) is configured as a guide sleeve (412), and a guide surface (4121) is provided at the bottom of the outer wall of the guide sleeve (412), and the guide surface (4121) is connected to the outer wall of the guide sleeve (412) and the top wall of the stator base (31) facing away from the stator ring (33), wherein the guide surface (4121) is inclined relative to the central axis of the guide sleeve (412) and is configured as a plane or a curved surface.

19. The circulating pulping device (1000) according to claim 1, characterized in that: A reinforcement structure (413) is provided on the end surface of the flow guide (41) facing away from the stator base (31), and the reinforcement structure (413) is configured as an arc chamfer or an arc curling edge.

20. The circulating pulping device (1000) according to claim 1, characterized in that: The stator (30) further comprises a plurality of connecting rods (42), one end of each of the connecting rods (42) being connected to the stator base (31) and / or the flow guide (41), and the other end of the connecting rod (42) being connected to the inner wall of the bottom of the circulation tank (100), and the plurality of connecting rods (42) being arranged at intervals along the circumferential direction (Z) of the circulation pulping equipment (1000).

21. The circulating pulping device (1000) according to claim 20, characterized in that: The cross section of the connecting rod (42) along the axial direction (X) perpendicular to the dispersion mechanism (300) is circular or teardrop-shaped.

22. The circulating pulping device (1000) according to claim 20, characterized in that: The stator (30) further comprises a connecting base (45), wherein the connecting base (45) is arranged opposite to the stator base (31) and is connected via the connecting rod (42) to form a dispersion chamber (402), and the rotor (10) is rotatably arranged in the dispersion chamber (402).

23. The circulating pulping device (1000) according to claim 22, characterized in that: The inner wall of the circulation tank (100) comprises 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 inclined relative to the tank side wall (1013) toward one side of the dispersion mechanism (300), and is smoothly connected to the connection base (45) toward the top wall of the stator base (31).

24. The circulating pulping device (1000) according to claim 1, characterized in that: The central axis of the dispersion mechanism (300) is coaxially arranged with the central axis (P) of the circulation tank (100); or, the central axis of the dispersion mechanism (300) is eccentrically arranged with the central axis (P) of the circulation tank (100).

25. The circulating pulping device (1000) according to claim 1, characterized in that: The circulating pulping equipment (1000) further comprises a stirring mechanism (500), wherein the stirring mechanism (500) comprises a stirring member (50) and a spoiler (60), wherein the stirring member (50) comprises a stirring shaft (51) and a plurality of stirring blades (52) arranged on the stirring shaft (51), and the spoiler (60) comprises a plurality of baffles (62), wherein the plurality of baffles (62) and the plurality of stirring blades (52) are arranged in a staggered manner.

26. The circulating pulping device (1000) according to claim 25, characterized in that: The plurality of stirring blades (52) and the plurality of baffles (62) are each arranged to be inclined relative to the central axis of the stirring shaft (51). Along the axial direction (X) of the circulation tank (100), the adjacent stirring blades (52) and the baffles (62) form a stirring unit (710). In the stirring unit (710), the inclination direction of the stirring blades (52) is opposite to the inclination direction of the baffles (62).

27. The circulating pulping device (1000) according to claim 25, characterized in that: The central axis of the stirring shaft (51) is coaxially arranged with the central axis of the dispersing mechanism (300); or, the central axis of the stirring shaft (51) is spaced apart from the central axis of the dispersing mechanism (300) by a preset distance.

Images