Circulating pulping equipment

Abstract

The utility model 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 and a stator. The dispersion mechanism includes a rotor and a stator, the rotor including a rotor base and at least one rotor ring. The stator comprises a stator base, at least one stator ring and a guide sleeve, the stator base is fixedly connected with the circulation tank, the stator ring is arranged on the stator base and located on the inner side and / or the outer side of the rotor ring, a through hole communicated with the circulation cavity is formed in the middle of the stator base, and the guide sleeve is arranged at the edge of the through hole and located on the inner side and / or the outer side of the rotor ring. And the guide sleeve and the stator ring are located on different sides of the stator base, an inner cavity of the guide sleeve is communicated with the through hole, and the protruding height of the guide sleeve in the axial direction of the circulating pulping equipment relative to the stator base is 0-30 cm, so that the circulating capacity of slurry is improved, and the stirring effect and the mixing effect of the slurry are better.

Description

Technical Field

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

[0002] Existing circulating pulping equipment consists of multiple circulation tanks, one of which is equipped with a dispersion mechanism. The dispersed slurry is discharged to the outlet to mix with the powder. A high-flow circulation pump is required to circulate the slurry between the different circulation tanks. However, this design is complex, difficult to clean, and has a complicated circulation process. The pulping capacity is small, and the slurry circulation and dispersion efficiency are low. Therefore, it cannot meet the requirements of high-flow circulation pulping. Utility Model Content

[0003] In view of this, one object of the present invention 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 a first aspect, an embodiment of the present invention provides a circulating pulping device including a circulating tank and a dispersion mechanism. The circulating tank is provided with a circulating cavity. The dispersion mechanism is provided at the bottom of the circulating tank and is located in the circulating cavity. The dispersion mechanism includes a rotor and a stator. The rotor includes a rotor base and at least one rotor ring provided on the rotor base. The stator includes a stator base, at least one stator ring and a guide sleeve. The stator base is fixedly connected to the circulating tank. The stator ring is provided on the stator base and is located on the inner side and / or outer side of the rotor ring. A through hole communicating with the circulating cavity is provided in the middle of the stator base. The guide sleeve is provided at the edge of the through hole and is located on a different side of the stator base from the stator ring. The inner cavity of the guide sleeve is connected to the through hole. The protruding height of the guide sleeve relative to the stator base in the axial direction of the circulating pulping device is 0 cm-30 cm.

[0005] In combination with the first aspect, in certain implementations of the first aspect, the stator base includes a first base and a second base, the second base is arranged on the side of the first base facing away from the rotor base, and is fixedly connected to the first base, the through hole passes through the first base and the second base, all the stator rings are arranged on the first base, and the guide sleeve is arranged at a position of the second base corresponding to the through hole, and extends toward the side facing away from the first base.

[0006] In combination with the first aspect, in certain implementations of the first aspect, the first base and the second base are detachably connected, and the guide sleeve and the second base are integrally formed.

[0007] In combination with the first aspect, in certain implementations of the first aspect, a guide surface is provided at the bottom of the outer wall of the guide sleeve, 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, and the guide surface is inclined relative to the central axis of the guide sleeve and is configured as a plane or a curved surface.

[0008] In combination with the first aspect, in certain implementations of the first aspect, a reinforcement structure is provided on the end surface of the guide sleeve facing away from the stator base, and the reinforcement structure is configured as an arc-shaped chamfer or an arc-shaped curling edge.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the diameter of the top of the guide sleeve is smaller than the diameter of the bottom of the guide sleeve; or, the diameter of the top of the guide sleeve is equal to the diameter of the bottom of the guide sleeve.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the rotor further includes an impeller, which is fixed relative to the rotor base, and the top of the impeller extends into the inner cavity of the guide sleeve, and the free end of the impeller in the radial direction of the circulating pulping equipment is arranged close to the inner wall of the guide sleeve; or, the top of the impeller is located outside the inner cavity of the guide sleeve.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the impeller includes a base and blades arranged on the base, the base is configured as a truncated cone or a cylinder, and the blades are configured as straight blades, twisted blades or cylindrical blades.

[0012] 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.

[0013] 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.

[0014] 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.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the rotor ring is provided with a plurality of first shear grooves along the circumferential direction of the circulating pulping equipment, and a groove ratio of the first shear grooves is greater than or equal to 0.2.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the rotor ring is provided with a plurality of first shear grooves along the circumferential direction of the circulating pulping equipment, and the stator ring is provided with a plurality of second shear grooves connected to the plurality of first shear grooves along the circumferential direction of the circulating pulping equipment. The angle formed by the slotting direction of the first shear groove and the rotation direction of the rotor is a first angle, which is 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, which is recorded as β, wherein 90°≤α<180°, 0°<β≤90°.

[0021] In combination with the first aspect, in some implementations of the first aspect, 110°≤α≤160°, and 20°≤β≤70°.

[0022] 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.

[0023] In combination with the first aspect, in certain implementations of the first aspect, the rotor ring is provided in plurality, the rotor ring is provided with a plurality of first shear grooves along the circumferential direction of the circulating pulping equipment, the stator ring is provided with a plurality of second shear grooves connected to the plurality of first shear grooves along the circumferential direction of the circulating pulping equipment, 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.

[0024] 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.

[0025] In combination with the first aspect, in certain implementations of the first aspect, the rotor ring located at the outermost side of the rotor base is located inside the outermost stator ring.

[0026] The circulating pulping equipment provided by the present invention, on the one hand, is based on arranging the dispersion mechanism at the bottom of the circulation tank and being located in the circulation cavity, and the stator ring is arranged on the inner side and / or outer side of the rotor ring, so that the slurry can circulate in the interior of a single circulation tank through the dispersion mechanism, eliminating the circulation pipe and the circulation pump, and the slurry flow resistance is small, meeting the requirements of large-flow circulating pulping, and realizing that the slurry is sucked from the top of the dispersion mechanism and then sheared and dispersed by the stator ring and the rotor ring. 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 to form a cyclic flow path, thereby improving the dispersion ability and circulation ability of the circulating pulping equipment; on the other hand, based on arranging the stator ring and the guide sleeve on different sides of the stator base, the guide sleeve can play a guiding role on the slurry, thereby promoting the The slurry is flipped up and down in the circulation tank, which improves the circulation capacity of the slurry and makes the stirring and mixing effects of the slurry better; on the other hand, based on the setting of the protruding height of the guide sleeve relative to the stator base in the axial direction of the circulating pulping equipment to 0cm-30cm, it avoids the guide sleeve height being too high to affect the flow rate of the slurry, affect the pressure distribution inside and outside the guide sleeve, and affect the resistance of the slurry in the circulation process, resulting in a decrease in the circulation efficiency of the circulating pulping equipment, and reduce the dispersion uniformity of the slurry, and avoid the guide sleeve height being too low to affect the flow condition of the fluid and cause the problem of poor effect of the slurry flipping up and down. Therefore, a reasonable setting of the guide sleeve height can not only play a good guiding role for the slurry, improve the effect of the slurry flipping up and down, but also improve the circulation efficiency and dispersion effect of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 It is a cross-sectional view of the circulating pulping equipment provided by the first embodiment of the present utility model.

[0029] Figure 2 yes Figure 1 A structural schematic diagram of a first embodiment of the dispersion mechanism of the circulating pulping equipment.

[0030] Figure 3 yes Figure 2 Exploded view of the decentralized mechanism.

[0031] 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 equipment.

[0032] Figure 5 yes Figure 2 A cross-sectional view of a second embodiment of the dispersion mechanism along the radial direction of the circulating pulping equipment.

[0033] Figure 6 yes Figure 2 Schematic diagram of the structure of the rotor of the dispersion mechanism.

[0034] Figure 7 yes Figure 2 A cross-sectional view of the dispersion mechanism in the circulating pulping equipment along the axial direction.

[0035] Figure 8 yes Figure 1 A structural schematic diagram of a second embodiment of the dispersion mechanism of the circulating pulping equipment.

[0036] Figure 9 yes Figure 8 A cross-sectional view of the dispersion mechanism in the circulating pulping equipment along the axial direction.

[0037] Figure 10 It is a cross-sectional view of the circulating pulping equipment provided by the second embodiment of the present utility model.

[0038] Explanation of the 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; blade-122; rotor ring-13; first shear groove-131; first circle Angle 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 3101; first base 311; second base 312; mounting groove 3121; stator ring 33; second shear groove 331; second fillet 332; dispersion cavity 402; shear gap 403; 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 portion 421; stop portion 422; shear structure 423; positioning sleeve 43; locking member 44; connecting base 45; sealing groove 4501; avoidance opening 4502; boss portion 451; first flange portion 452; second flange portion 453; stirring rod 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; first stirring unit-710; first thickness-D1; second thickness-D2; axial direction-X; radial direction-Y; circumferential direction-Z; rotation direction-F; central axis-P; protrusion height-h.

[0039] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0040] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] It is understood that the terms in the specification and claims of the present invention and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit the present invention. The terms "first", "second", etc. in the specification and claims of the present invention 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 the plural forms. The terms "including" and any of their variations are intended to cover non-exclusive inclusions. In addition, the present invention 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 invention, wherein words indicating directions such as up, down, left, and right are only for the position of the structure shown in the corresponding drawings. In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connected," and "disposed on" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections via an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0042] The term "slurry" refers to a material in a stable suspension state formed by mixing and dispersing a powder and a liquid. Powder refers to a material in powder form, and liquid refers to a material in liquid form.

[0043] The term "dispersion" refers to the process by which particle agglomerates in a slurry are fully disintegrated to form a stable solid-liquid suspension system.

[0044] 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 constantly changing and is always in the tangential direction (perpendicular to the line connecting the point to the center of the circle).

[0045] The term "interstitial volume" refers to the maximum volume of fluid that can be filled in the interstitial space.

[0046] The term "interstitial flow" refers to the velocity of a fluid through a pipe or pore.

[0047] The term "effective volume" refers to the volume of 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.

[0048] The following description is for the purpose of illustrating the preferred embodiments of the present invention. However, the above description is for the purpose of illustrating 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.

[0049] Please also refer to Figures 1 to 3 , Figure 1 It is a cross-sectional view of the circulating pulping equipment 1000 provided in the first embodiment of the present utility model; Figure 2 yes Figure 1 A schematic structural diagram of a first embodiment of the dispersion mechanism 300 of the circulating pulping equipment 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 and a stator 30. The rotor 10 includes a rotor base 11 and at least one rotor ring 13 arranged on the rotor base 11. The stator 30 includes a stator base 31, at least one stator ring 33 and a guide sleeve 412. The stator base 31 is fixedly connected to the circulation tank 100. The stator ring 33 is arranged on the stator base 31 and is located on the inner side and / or outer side of the rotor ring 13. A through hole 3101 connected to the circulation chamber 101 is provided in the middle of the stator base 31. The guide sleeve 412 is disposed at the edge of the through-hole 3101 and is located on a different side of the stator base 31 than the stator ring 33. The inner cavity of the guide sleeve 412 communicates with the through-hole 3101. The stator ring 33 is disposed inside and / or outside the rotor ring 13. The guide sleeve 412 protrudes from the stator base 31 in the axial direction X of the circulating pulping apparatus 1000 by a height h of 0 cm to 30 cm.

[0050] The circulating pulping equipment 1000 provided by the embodiment of the present invention, on the one hand, is based on arranging the dispersion mechanism 300 at the bottom of the circulation tank 100 and being located in the circulation chamber 101, and the stator ring 33 is arranged on the inner side and / or outer side of the rotor ring 13, so that the slurry can be circulated in the interior of a single circulation tank 100 through the dispersion mechanism 300, eliminating the circulation pipe and the circulation pump, and the slurry flow resistance is small, meeting the requirements of large-flow circulation pulping, and realizing the slurry to be sucked in from the top of the dispersion mechanism 300, and then sheared and dispersed through the stator ring 33 and the rotor ring 13, and 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, forming a cyclic flow path, thereby improving the dispersion ability and circulation ability of the circulating pulping equipment 1000; on the other hand, based on arranging the stator ring 33 and the guide sleeve 412 on different sides of the stator base 31, the guide sleeve 412 can guide the slurry The flow effect causes 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; on the other hand, based on setting the protruding height h of the guide sleeve 412 relative to the stator base 31 in the axial direction X of the circulating pulping equipment 1000 to be 0cm-30cm, it avoids the guide sleeve 412 from being too high and affecting the flow rate of the slurry, affecting the pressure distribution inside and outside the guide sleeve 412, and affecting the resistance of the slurry in the circulation process, thereby reducing the circulation efficiency of the circulating pulping equipment 1000, and reducing the dispersion uniformity of the slurry, and avoiding the guide sleeve 412 from being too low and affecting the flow condition of the fluid and causing the problem of poor effect of the slurry flipping up and down. Therefore, a reasonable setting of the height of the guide sleeve 412 can not only play a good guiding role for the slurry and improve the effect of the slurry flipping up and down, but also improve the circulation efficiency and dispersion effect of the slurry. It is understandable that when the height of the guide sleeve 412 is too high, the guide sleeve 412 will change the flow rate of the fluid and affect the dispersion and mixing effect of the slurry. At this time, the change in the slurry flow rate may affect the suspension and dispersion state of the slurry particles; the height of the guide sleeve 412 is too high, which will also cause the pressure distribution of the slurry fluid on the inside and outside of the guide sleeve 412 to change, affecting the circulation efficiency and uniformity of the slurry; the height of the guide sleeve 412 is too high, which will also increase the resistance of the slurry during the circulation process, thereby reducing the circulation efficiency and affecting the quality and production efficiency of the product. When the height of the guide sleeve 412 is too low, the slurry discharged from the dispersion mechanism 300 quickly returns to the end of the guide sleeve 412 facing away from the stator base 31, thereby reducing the effect of the slurry flipping up and down, and reducing the dispersion and mixing effect of the circulating pulping equipment 1000 on the slurry.

[0051] The protruding height h of the guide sleeve 412 relative to the stator base 31 in the axial direction X of the circulating pulping equipment 1000 is greater than 0 cm. For example, the protruding height h of the guide sleeve 412 relative to the stator base 31 in the axial direction X of the circulating pulping equipment 1000 can be, but is not limited to, 5 cm, 10 cm, 15 cm, 20 cm, 25 cm, or 30 cm. It should be noted that the protruding height h of the guide sleeve 412 relative to the stator base 31 in the axial direction X of the circulating pulping equipment 1000 can be set based on factors such as the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and is not specifically limited in the embodiments of the present invention.

[0052] Illustratively, in this embodiment, the slurry may be a battery slurry. Battery slurry includes a variety of materials, such as but not limited to solvents, conductive agents, liquids or powders, etc., and various materials are mixed to form battery slurry. Powders include but are not limited to active substances, conductive agent powders, binder powders and other powder materials. Liquids include but are not limited to liquids such as conductive agent solutions and binder solutions. Liquids may also include liquids obtained by mixing powders and liquids. In this 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.

[0053] 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 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 invention, and does not constitute a specific limitation on the circulating pulping device 1000. In other embodiments of the present invention, 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 .

[0054] For the accuracy of description, please refer to the direction in this article. Figure 1For reference, the "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 utility model does not make specific restrictions. For the convenience of description, the directions of up, down, left and right in this utility model are relative positions and do not constitute restrictions on implementation.

[0055] 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, thereby facilitating assembly, maintenance, and tilting of the various components of the circulating pulping apparatus 1000. Specifically, the dispersion mechanism 300 is located at the bottom of the tank body 110, facing away from the tank cover 120, and the stirring mechanism 500 is located on the tank cover 120. This facilitates assembly of the stirring mechanism 500 and the dispersion mechanism 300, resulting in a rational layout and compact structure. It also facilitates cleaning and maintenance of the components of the circulating pulping apparatus 1000.

[0056] It is understandable that when using the circulating pulping equipment 1000 for pulping, liquid can be added to the circulation tank 100 first, and the liquid can be pre-dispersed by the dispersion mechanism 300 before the powder is added, thereby improving the wetting effect of the liquid on the powder and improving the dispersion and mixing effect of the dispersion mechanism 300; alternatively, liquid can be added to the circulation tank 100 first, and then the powder is added, and after the powder and liquid are added, the dispersion mechanism 300 is started to disperse, so as to achieve a cyclic reciprocating motion of the slurry in the circulation tank 100. The circulation tank 100 is provided with a discharge pipe 103 to realize the discharge of the slurry. Optionally, the discharge pipe 103 is provided 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.

[0057] In some embodiments, the circulating slurrying apparatus 1000 further includes a powder conveying mechanism. The powder conveying mechanism can be disposed on the tank lid 120 or on the tank body 110. The powder conveying mechanism can include, but is not limited to, a feeding screw or a rotary valve, thereby achieving uniform feeding of the powder conveying mechanism and improving the uniformity of slurry mixing. Of course, in some embodiments, a powder dispersing mechanism is provided along the transmission path of the powder conveying mechanism to improve the wetting effect of the liquid on the powder, reduce wear on the dispersion mechanism 300, and improve the dispersion efficiency of the dispersion mechanism 300.

[0058] The circulating pulping apparatus 1000 also includes a liquid material conveying mechanism. This mechanism is located on the tank cover 120 or the tank body 110. Optionally, a guide mechanism is provided along the liquid material conveying path. This guide mechanism is used to direct the liquid material to a designated location within the circulating tank 100. For example, the guide mechanism can direct the liquid material to the vicinity of the dispersion mechanism 300. The liquid material dispersed by the dispersion mechanism 300 then comes into contact with and infiltrates the powder material, thereby enhancing mixing and dispersion.

[0059] 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 P 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 limiting member 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 limiting member 23. The limiting member 23 is used to limit the installation position of the rotor 10 relative to the rotating shaft 21, thereby preventing the rotor 10 from vibrating and shaking relative to the rotating shaft 21, improving the stability of the rotating shaft 21, ensuring the smooth operation of the dispersion mechanism 300, reducing the wear of the dispersion mechanism 300 by the slurry; and facilitating 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.

[0060] 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 formed as one piece. 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 the pulping.

[0061] 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 velocity of the rotor 10 is also relatively small, and the shear force that the rotor 10 can generate is small, resulting in poor stirring and mixing effect of the slurry. At the same time, the insufficient dispersing ability of the dispersion mechanism 300 can easily cause the slurry to deposit at the bottom of the circulation tank 100, resulting in poor ability to circulate the slurry and reducing the product quality of the slurry. On the other hand, the small diameter of the rotor ring 13 can easily increase the risk of slurry blockage in the dispersion mechanism 300. In the embodiment of the present invention, 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 velocity of the rotor 10 is relatively high, and the slurry is fully dispersed, sheared, homogenized, and crushed in the dispersion mechanism 300, avoiding the insufficient dispersion capacity of the dispersion mechanism 300 which easily causes the slurry to deposit at the bottom of the circulation tank 100, and promoting the slurry to perform reciprocating circulation, reducing the slurry mixing 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 velocity, which reduces the viscosity of the slurry, thereby accelerating the transmission speed of the slurry, and making the slurry easier to flow, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation 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.

[0062] The ratio of the diameter of the rotor ring 13 located on the outermost side of the rotor base 11 to the inner diameter of the circulation tank 100 is less than or equal to 0.9. Understandably, when the diameter of the outermost rotor ring 13 is too large, the linear velocity of the rotor 10 is also relatively large, and the shear force generated by the rotor 10 is relatively large. However, during the rotation of the rotor 10, not only does it increase the energy consumption of the dispersion mechanism 300, but it also easily causes gas-liquid exchange in the slurry, resulting in the generation of bubbles, which has little effect on the stirring of the slurry. In the embodiment of the present utility model, 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 the slurry to be fully dispersed, sheared, homogenized, and crushed 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 less likely for the slurry to settle at the bottom of the circulation tank 100, and reducing the energy consumption of the product, thereby avoiding the generation of bubbles in the dispersion mechanism 300 during the dispersion process and improving the product quality of the slurry.

[0063] 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. 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 can be set according to factors such as the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and is not specifically limited in the embodiments of the present invention.

[0064] Please also refer to Figure 3 and Figure 4 , Figure 4 yes Figure 2FIG1 is a cross-sectional view of a first embodiment of the dispersion mechanism 300 along the axial direction X of the circulating pulping apparatus 1000. The thickness of the rotor ring 13 along the radial direction Y of the circulating pulping apparatus 1000 is a first thickness D1, and the thickness of the stator ring 33 along the radial direction Y of the circulating pulping apparatus 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 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. Therefore, the smaller gap can increase the flow velocity of the slurry during the dispersion process, thereby improving the dispersion and mixing effects 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 range 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 powder materials 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. Therefore, 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, 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 dispersion. The embodiment of the present utility model 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, promotes the slurry to 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 circulation 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 circulation pulping equipment 1000 to the thickness of the stator ring 33 along the radial direction Y of the circulation pulping equipment 1000.

[0065] 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.

[0066] The stator ring 33 and the rotor ring 13 are alternately arranged along the radial direction Y of the circulating pulping equipment 1000. The rotor ring 13 is provided with a plurality of first shear grooves 131 along the circumferential direction Z of the circulating pulping equipment 1000. The stator ring 33 is provided with a plurality of second shear grooves 331 connected to the plurality of first shear grooves 131 along the circumferential direction Z of the circulating pulping equipment 1000. The first shear grooves 131 and the second shear grooves 331 can be configured as open grooves or closed grooves. An open groove means that the side walls of the first shear grooves 131 and the second shear grooves 331 are in the shape of an open ring, for example, the first shear groove 131 passes through the top surface of the rotor ring 13 facing away from the rotor base 11, and the second shear groove 331 passes through the top surface of the stator ring 33 facing away from the stator base 31. A closed groove means that the side walls of the first shear grooves 131 and the second shear grooves 331 are in the shape of a closed ring. The shapes of the first shearing groove 131 and the second shearing groove 331 can be regular or irregular shapes such as ellipse, circle or strip, and the embodiment of the present invention does not make any specific limitation.

[0067] In some embodiments, the slot ratio of the first shear groove 131 is greater than or equal to 0.2. It is understandable 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 invention 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 damage to 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.

[0068] It should be noted that the term "grooving ratio" refers to the ratio of the length of the groove to the length of the product along its length. For example, in this embodiment, the groove ratio of the first shearing grooves 131 of the stator ring 33 refers to the ratio of the sum of the widths of all first shearing grooves 131 along the circumferential direction Z of the circulating pulping apparatus 1000 to the circumference of the stator ring 33 along the circumferential direction Z of the circulating pulping apparatus 1000.

[0069] In some embodiments, the slot ratio of the first shear groove 131 is less than or equal to 0.8. It is understandable 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. However, a large slot ratio of the rotor 10 can easily lead to uneven distribution of shear force. Some areas may damage the structure of various materials in the slurry due to excessive shear force, while other areas may fail to achieve the desired dispersion effect due to insufficient shear force. At the same time, because 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. In the embodiment of the present invention, the slot ratio of the first shear groove 131 is set 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, and making the slurry easier to flow, thereby improving the discharge capacity of the dispersion mechanism 300 and promoting the reciprocating circulation of the slurry.

[0070] For example, the slot ratio of the first shear groove 131 may also be, but is not limited to, 0.3, 0.4, 0.5, 0.6, or 0.7. It should be noted that the slot ratio of the first shear groove 131 can be set according to factors such as the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and is not specifically limited in the embodiment of the present invention.

[0071] 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. The corners of the first shear groove 131 are provided with first rounded corners 132, and the corners of the second shear groove 331 are provided with second rounded corners 332. This improves the structural strength of the rotor ring 13 and the stator ring 33, prevents stress concentration, prolongs service life, and enhances aesthetics.

[0072] In some embodiments, a shear gap 403 is formed between adjacent rotor rings 13 and stator rings 33 in the radial direction Y of the circulating pulping apparatus 1000, and the shear gap 403 is less than or equal to 5 mm. It is understandable that when the shear gap 403 is too large, the range and intensity of the shear force will be correspondingly weakened, thereby reducing the time and intensity of the shear force acting on the slurry, resulting in a reduction in the shear dispersion effect on the slurry. In the embodiment of the present invention, the shear gap 403 is set to be less than or equal to 5 mm, so that the shear gap 403 is small, which promotes the effective crushing and dispersion of each material in the slurry by sufficient shear force and pressure, thereby improving the dispersion uniformity of the slurry and enhancing 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, making the slurry easier to flow, improving the discharge capacity of the dispersion mechanism 300, and promoting the reciprocating circulation of the slurry.

[0073] 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 is subjected to greater shear force, friction, and impact force, which promotes the breakage and agglomeration of particles in the slurry, and increases 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 based on factors such as the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and is not specifically limited in the embodiments of the present invention. For example, the shear gap 403 can also be less than or equal to 4 mm, 3 mm, or 1 mm.

[0074] In some embodiments, in the radial direction Y of the circulating pulping apparatus 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 rate 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 rate of the shear gap 403 is small, the shearing effect generated by the dispersion mechanism 300 may not be strong enough, which may lead to uneven dispersion of the slurry and easy aggregation or precipitation of particles. The embodiment of the present invention sets the ratio of the volume of the shear gap 403 to the circulation flow rate of the shear gap 403 to be greater than or equal to 1ms, so that the shearing effect generated by the dispersion mechanism 300 is more concentrated, thereby providing a greater shear force to the slurry, helping to better disperse the particles or solids in the slurry in the liquid material, preventing the slurry from aggregating or settling particles, thereby improving the overall uniformity and stability of the slurry, and at the same time improving the discharge capacity of the dispersion mechanism 300, promoting the reciprocating circulation of the slurry. 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.

[0075] Of course, in some embodiments, the ratio of the volume of the shear gap 403 to the circulation flow 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. The embodiments of the present utility model do not make specific limitations. For example, the ratio of the volume of the shear gap 403 to the circulation flow of the shear gap 403 can also be greater than or equal to 3ms, 5ms, 7ms, 9ms, 11ms, 13ms, 15ms or 17ms, etc. The embodiments of the present utility model do not make specific limitations.

[0076] In some embodiments, the linear velocity of the rotor 10 is between 10 m / s and 30 m / s. It is understood that when the linear velocity of the rotor 10 is too high, the particles in the slurry may be subjected to excessive shear forces, which may damage the particle structure and result in particles being too small, thereby affecting the dispersion stability of the slurry. Furthermore, it may cause significant wear on the dispersion mechanism 300, increase the energy consumption of the equipment, and reduce the energy efficiency ratio. When the linear velocity of the rotor 10 is too low, the shear forces applied to the slurry in the gap between the stator 30 and the rotor 10 are relatively low, which may result in insufficient dispersion of the various materials in the slurry, thereby affecting the uniformity and stability of the slurry, as well as affecting the transmission speed of the slurry within the dispersion mechanism 300. The embodiment of the present invention sets the linear velocity of the rotor 10 to 10m / s-30m / s, so that the rotor 10 can provide an appropriate rotational 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.

[0077] Of course, in some embodiments, the linear speed of the rotor 10 can be set according to the size parameters of the circulation tank 100, the volume of the slurry to be dispersed, the viscosity and other factors, and the embodiments of the present invention 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 invention do not make specific limitations.

[0078] 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.

[0079] It should be noted that the effective volume of the circulation tank 100 refers to the maximum volume of slurry that the circulation tank 100 can accommodate under normal operating 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. The ratio of the effective volume of the circulation tank 100 to the circulation flow rate of the circulation tank 100 is for illustrative purposes only and can be set based on factors such as the viscosity and volatility of the slurry to be dispersed. This is not specifically limited in the present embodiments.

[0080] The angle formed by the slotting direction of the first shear 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 shear groove 331 and the rotation direction F of the rotor 10 is a 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, thereby helping to disperse and mix the 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.

[0081] Optionally, 110°≤α≤160°, 20°≤β≤70°. Based on the opposite inclination directions 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 the particles and promoting more uniform dispersion; on the other hand, the distribution of the flow field is improved, the unevenness of the slurry during the dispersion process is avoided, and each particle is ensured to be effectively dispersed; on the other hand, the shear dispersion of the slurry is improved, the dispersion time is reduced, and the slurrying 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 sufficient kinetic energy to be discharged by centrifugation, and there is no need to add discharge blades on the outside of the outermost stator ring 33 to work on the slurry, 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, the fluid can be discharged at a stable flow rate, and the vibration and noise caused by pulsation are eliminated.

[0082] Of course, in some embodiments, please refer to Figure 3 and Figure 5 , Figure 5 yes Figure 2 The cross-sectional view of the second embodiment of the dispersion mechanism 300 along the radial direction Y of the circulating pulping device 1000 is shown. 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 invention.

[0083] In some embodiments, the stator 30 is entirely configured as a metal structure. Metal structures include, but are not limited to, carbon steel, stainless steel, and metal alloys. Stainless steel has excellent corrosion resistance and high temperature resistance. Carbon steel is relatively low in cost and has good mechanical properties. Metal alloys have excellent wear resistance and corrosion resistance.

[0084] In other embodiments, the stator 30 can be entirely constructed of plastic; or, the stator 30 can be constructed of metal with the surface of the stator 30 covered with a plastic structure. This can be achieved by using a low-cost plastic material, which reduces costs. Furthermore, the plastic structure can deform under external forces, increasing the contact area between the slurry and the stator 30 and improving the shearing effect.

[0085] When the stator 30 is entirely configured as a plastic structure or the surface of the stator 30 is coated with a plastic structure, the first angle ranges from 85 degrees to 95 degrees, i.e., 85° ≤ α ≤ 95°. The second angle also ranges from 85 degrees to 95 degrees, i.e., 85° ≤ α ≤ 95°. It is understood that when the slotting directions of the first shear groove 131 and the second shear groove 331 are inclined relative to the radial direction Y of the dispersion mechanism 300, the sharp angles formed by the edges of the first shear groove 131 and the second shear groove 331 are easily deformed, thereby affecting the shear dispersion effect. The present invention is based on setting appropriate first and second angles so that the sharp angles formed by the edges of the first shear groove 131 and the second shear groove 331 are approximately right angles, thereby preventing deformation of the edges of the first shear groove 131 and the second shear groove 331 and improving the shear effect and efficiency of the stator 30 and the rotor 10. Optionally, in some embodiments, α = 90° and β = 90°.

[0086] For example, 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, by providing the rotor ring 13 between the two stator rings 33, the slurry can form a better circulation and turbulent flow 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 at the same time, shear force and impact force are generated through the interaction between the rotor 10 and the stator 30, thereby achieving dispersion and mixing of the slurry.

[0087] Of course, in some embodiments, two rotor rings 13 are provided and three stator rings 33 are provided. Along the radial direction Y of the dispersion mechanism 300, each rotor ring 13 is provided between two adjacent stator rings 33. Thus, on the one hand, by providing an appropriate 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 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, by providing 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.

[0088] It should be noted that the number of rotor rings 13 and stator rings 33 is for illustrative purposes only. The number of rotor rings 13 and stator rings 33 can be adjusted based on factors such as the size of the circulation tank 100, the volume and viscosity of the slurry to be dispersed, and is not specifically limited in the present embodiment. For example, in some embodiments, there is one rotor ring 13 and one stator ring 33. The stator ring 33 can be located outside the rotor ring 13 or inside the rotor ring 13.

[0089] 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 equipment 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 equipment 1000. Thus, due to the staggered arrangement of the first shear grooves 131 of two adjacent rotor rings 13 or the second shear grooves 331 of two adjacent stator rings 33, on the one hand, the shear dead zone is reduced, 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.

[0090] In this embodiment, multiple stator rings 33 are provided, and the thickness of the multiple stator rings 33 gradually increases from the inside out. Therefore, on the one hand, because the centrifugal force exerted on the slurry by the rotor 10 during high-speed rotation gradually increases from the inside out, the present invention provides multiple stator rings 33 with gradually increasing thickness from the inside out, thereby gradually increasing the structural strength of the stator rings 33 from the inside out, preventing deformation of the outer stator rings 33 and improving the shearing and dispersion effects of the dispersion mechanism 300.

[0091] 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 arrangement 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, reducing the unevenness of the slurry during the dispersion process, thereby improving the quality of the slurry, and making the relative area between the rotor ring 13 and the stator ring 33 larger, increasing the relative shear volume, and improving the dispersion effect of the dispersion mechanism 300; on the other hand, based on the arrangement of the first shear groove 131 The width of the first shear groove 131 in the circumferential direction Z of the dispersion mechanism 300 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 exerted on the slurry 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, it is possible to reduce excessive shearing of the material by the rotor 10.

[0092] It should be noted that the term "equal" as used herein 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" may include situations where any two shear gaps 403 are identical in the radial direction Y of the dispersion mechanism 300, and also includes situations where any two shear gaps 403 are approximately identical 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" 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.

[0093] 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. As a result, when the rotor 10 rotates at high speed, the slurry can form a specific flow path within the circulation tank 100 through the guidance of the stator ring 33, better controlling the flow of the slurry and ensuring that the slurry is 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 and mixing effects of the dispersion mechanism 300. On the other hand, the outermost side of the dispersion mechanism 300 is provided with the stator ring 33, which can reduce mechanical vibration, reduce airflow interference, and balance the dynamic load of the rotor 10 during mechanical operation, reducing vibration and noise caused by imbalance, thereby reducing noise, and further reducing the noise generated by the dispersion mechanism 300 during the process of dispersing the slurry.

[0094] Of course, in some embodiments, the rotor ring 13 located on the outermost side of the rotor base 11 is located outside the outermost stator ring 33. Thus, the outermost side of the dispersion mechanism 300 is provided as the rotor ring 13, thereby increasing the flow rate of the slurry ejected from 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 achieving the reciprocating motion of the slurry in the circulation tank 100.

[0095] In some embodiments, the rotor 10 further includes an impeller 12. The impeller 12 is fixed relative to the rotor base 11. For example, in this embodiment, the impeller 12 is mounted on the rotor base 11. The impeller 12 and the rotor base 11 form an integrated structure. Of course, in some embodiments, the impeller 12 and the rotor base 11 can also be mounted independently of each other, thereby facilitating replacement, maintenance, and cleaning of various components of the rotor 10.

[0096] The impeller 12 includes a base 121 disposed on the rotor base 11 and blades 122 disposed on the sidewall of the base 121. All rotor rings 13 are disposed around the outer side of the impeller 12.

[0097] For example, in this embodiment, the top of the impeller 12 extends into the inner cavity of the guide sleeve 412, the diameter of the top of the guide sleeve 412 is smaller than the diameter of the bottom of the guide sleeve 412, and the free end of the blade 122 is arranged close to the inner wall of the guide sleeve 412. Therefore, based on extending the top of the impeller 12 into the inner cavity of the guide sleeve 412, on the one hand, the impeller 12 is prevented from being affected by the external slurry flow of the dispersion mechanism 300 during rotation, the flow stabilization effect is improved, and the shearing effect of the stator ring 33 and the rotor ring 13 on the slurry is strengthened; on the other hand, the guide sleeve 412 can also block the solid matter in the slurry outside the dispersion mechanism 300 from directly colliding with the blades 122, thereby increasing the service life of the impeller 12; on the other hand, based on the fact that the diameter of the top of the guide sleeve 412 is smaller than the diameter of the bottom of the guide sleeve 412, the free end of the blade 122 is arranged close to the inner wall of the guide sleeve 412, so that most of the fluid slurry is pressed into the stator ring 33 and the rotor ring 13 at the bottom through the blade 122 for shearing and dispersion, thereby improving the dispersion uniformity of the slurry.

[0098] Of course, in some embodiments, the top of the impeller 12 can also be located outside the inner cavity of the guide sleeve 412. Thus, on the one hand, the inner cavity of the guide sleeve 412 can serve as an inlet for the slurry. In the embodiment of the present invention, the impeller 12 is disposed outside the inner cavity of the guide sleeve 412, thereby improving the smoothness of the slurry entering the dispersion mechanism 300 and improving the material suction capacity of the dispersion mechanism 300.

[0099] Please also refer to 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 1000 along the axial direction X of the circulating pulping apparatus 1000. The rotor ring 13 and the impeller 12 are arranged on the same side of the rotor base 11, thereby facilitating 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 stirring mechanism 500 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 apparatus 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 apparatus 1000.

[0100] For example, 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 apparatus 1000 and extend along the radial direction Y of the circulating pulping apparatus 1000. Thus, on the one hand, the plurality of auxiliary blades 14 rotate synchronously with the rotation of the rotating shaft 21, thereby achieving a flow state in which the auxiliary blades 14 push the slurry at the bottom of the rotor 10. This flow state can improve the dispersion and mixing effect, and prevent the slurry from being retained at the bottom 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 and the circulation tank 100 to produce a function similar to that of a centrifugal pump. The centrifugal action generated by the auxiliary blades 14 accelerates the slurry at the bottom of the rotor ring 13 to flow outward, making the process of the slurry passing through the rotor ring 13 quicker and easier, thereby effectively compensating for the kinetic energy loss caused by the addition of the rotor ring 13.

[0101] In some embodiments, within a projection plane perpendicular to the axial direction X of the circulating pulping apparatus 1000, the extension path of the auxiliary blade 14 is the same as the extension path of the blade 122, thereby facilitating the processing and manufacturing of the rotor 10. Of course, in other embodiments, within a projection plane perpendicular to the axial direction X of the circulating pulping apparatus 1000, the extension path of the auxiliary blade 14 may be different from the extension path of the blade 122.

[0102] For example, in this embodiment, the stator base 31 includes a first base 311 and a second base 312. The second base 312 is disposed on the side of the first base 311 facing away from the rotor base 11 and is fixedly connected to the first base 311. The through-hole 3101 passes through the first base 311 and the second base 312. All stator rings 33 are disposed on the first base 311. The guide sleeve 412 is disposed on the second base 312 at a position corresponding to the through-hole 3101 and extends toward the side facing away from the first base 311. This reduces the difficulty in manufacturing the stator base 31 and the guide sleeve 412, and facilitates operations such as repairing, replacing, or cleaning the various components of the stator 30.

[0103] In this embodiment, the first base 311 and the second base 312 are independently provided and fixedly connected. Specifically, a mounting groove 3121 for mounting the first base 311 is provided on the bottom wall of the second base 312 facing away from the guide sleeve 412. This improves, on the one hand, the assembly efficiency and connection reliability between the first base 311 and the second base 312; on the other hand, it facilitates the alignment and assembly of the stator 30 and the rotor 10, and improves the structural compactness of the dispersion mechanism 300. The first base 311 and the second base 312 can be fixedly connected together by a locking member 44. The locking member can be a bolt, screw, snap, or other locking structure. Of course, in some embodiments, the first base 311 and the second base 312 can also be integrally formed, that is, the stator base 31 is configured as a monolithic structure, thereby improving the overall structural strength of the stator 30 and improving assembly efficiency.

[0104] In this embodiment, the guide sleeve 412 and the second base 312 can be integrally formed, thereby improving the reliability and stability of the connection between the guide sleeve 412 and the second base 312, and improving assembly efficiency. Of course, in some embodiments, the guide sleeve 412 and the second base 312 can be fixedly connected together by locking, welding, bonding, etc.

[0105] 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 second base 312 facing away from the stator base 31. The guide surface 4121 is inclined relative to the central axis P of the guide sleeve 412 and is configured as a plane or a curved surface. In some embodiments, the guide sleeve 412 is connected to the stator base 31 as an integral structure; alternatively, the guide sleeve 412 and the stator base 31 are independent of each other and fixedly connected. The guide sleeve 412 extends around the edge of the through hole 3101 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. Thus, on the one hand, the guide surface 4121 can guide the slurry fluid, promoting smooth and stable flow of the slurry at the corner between the guide sleeve 412 and the stator base 31, thereby enhancing the slurry transmission capacity and reducing the flow resistance, avoiding the formation of dead corners that cause slurry residue, and improving the slurry circulation capacity. Specifically, the guide sleeve 412 is connected to the stator base 31 in an arc shape. Thus, the stator 30 can reduce stress concentration at the corner between the guide sleeve 412 and the stator base 31, thereby improving the connection strength between the guide sleeve 412 and the stator base 31; 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, thereby improving the stability and reliability of the dispersion mechanism 300.

[0106] In some embodiments, a reinforcement structure 413 is provided on the end surface of the guide sleeve 412 facing away from the stator base 31. The reinforcement structure 413 is configured as an arc-shaped chamfer or an arc-shaped curling edge. Thus, on the one hand, the provision of the arc-shaped chamfer or arc-shaped curling edge can reduce stress concentration, reduce the force exerted by 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 provision of the arc-shaped chamfer or arc-shaped curling edge 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.

[0107] In this embodiment, the free end of the guide sleeve 412 is provided with an arc-shaped chamfer. Specifically, the surface of the reinforcement structure 413 is configured as an arc-shaped surface that protrudes outward relative to the guide sleeve 412. The reinforcement structure 413 includes a first arc surface 4131 and a second arc surface 4132 along an axial cross-section parallel to the axial direction X of the circulating pulping apparatus 1000. The first arc surface 4131 and the second arc surface 4132 are smoothly connected to each other. As a result, 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 also be quickly guided along the second arc surface 4132 to the inner cavity of the guide sleeve 412.

[0108] For example, in this embodiment, the radial dimension of the impeller 12 at the intake end is smaller than the radial dimension of the impeller 12 at the discharge end. Specifically, the impeller 12 is configured as a cone. The impeller 12 has an intake end remote from the rotor base 11 and a discharge end opposite the intake end. The radial dimension of the impeller 12 at the intake end is smaller than the radial dimension of the impeller 12 at the discharge end. Specifically, the radial dimension of the impeller 12 along the radial direction Y of the circulating pulping apparatus 1000 gradually increases from the intake 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 size of the impeller 12 gradually increases from the suction end toward the discharge end, the flow rate of the slurry gradually increases, and the pressure gradually decreases, 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 and discharge capabilities of the dispersion mechanism 300; on another hand, the conical impeller 12 makes the fluid flow smoother, reduces eddies and turbulence, and thus reduces mechanical vibration and fluid dynamic noise.

[0109] 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 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 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 input, 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 stability and reliability of the dispersion mechanism 300. Of course, the diameter of the top of the guide sleeve 412 can also be equal to the diameter of the bottom of the guide sleeve 412, that is, the diameter of the guide sleeve 412 can remain unchanged from top to bottom (that is, from the suction end to the discharge end).

[0110] Specifically, in this embodiment, the base 121 is configured as a truncated cone structure, and the blades 122 are configured as twisted blades. It should be noted that twisted blades refer to structures in which the surface of the blades 122 is bidirectionally curved. Twisted blades are also called spatial curved surfaces or hyperbolic blades. Specifically, 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 walls of the base 121 are configured as curved surfaces. 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 P of the base 121. The meridian flow line is roughly arc-shaped.

[0111] In some embodiments, the radial dimension of the impeller 12 at the suction end is equal to the radial dimension of the impeller 12 at the discharge end. For example, the base 121 is configured as a cylinder, and the blades 122 are configured as cylindrical blades. A cylindrical blade refers to a structure in which the surface of the blade 122 is unidirectionally curved. A cylindrical blade is also called a single-curvature blade. This facilitates the processing and manufacturing of the impeller 12, facilitates cleaning, and improves the operational stability of the impeller 12. Specifically, the cross-section of the base 121 along the radial direction Y of the circulating pulping equipment 1000 remains unchanged 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 P of the base 121. For another example, the base 121 can also be configured as a truncated cone, and the impeller blades 122 can be configured as cylindrical blades.

[0112] In other embodiments, the impeller blades 122 may also be, but are not limited to, linear blades. A linear blade refers to a structure in which the surface of the blade is planar. For example, in some embodiments, the linear blades may extend parallel to the central axis of the base 121. In other embodiments, the linear blades may extend in a direction that intersects the central axis of the base 121. In other words, the linear blades may extend at an angle to the central axis of the base 121.

[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 circulating pulping apparatus 1000 and surround the outer side of the outermost stator ring 33. Thus, based on the stator base 31 being provided and supported and connected to the circulation tank 100 via a plurality of connecting rods 42, on the one hand, the stator base 31 is provided above the rotor base 11 so that the stator base 31 can guide the portion of slurry outside the dispersion mechanism 300, facilitating the slurry's reciprocating motion within the circulation tank 100; on the other hand, the provision of the connecting rods 42 better achieves force transmission and distribution, thereby enhancing the stability and load-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 connecting rods 42 being provided around the outside of the stator ring 33, shearing and drainage effects on the slurry are achieved, improving the slurry shearing effect, and enhancing the overall stability of the dispersion mechanism 300. In this embodiment, a plurality of connecting rods 42 are provided around the outermost sides of all stator rings 33.

[0114] In some embodiments, the dispersion mechanism 300 also 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, thereby improving the assembly efficiency, and improving the reliability of the connection between the connecting rod 42 and the circulation tank 100, thereby avoiding 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 flow resistance, and enhancing the stability and bearing capacity of the stator 30, thereby 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 can 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 to the stator base 31 or the second base 312. The connecting rod 42 includes a connecting rod portion 421 and a stop portion 422. The stop portion 422 is arranged at one end of the connecting rod portion 421. The radial dimension of the stop portion 422 is larger than the radial dimension of the connecting rod portion 421, and the stop portion 422 stops the stator base 31 or the second base 312, thereby facilitating the alignment and assembly of the connecting rod 42 with the stator base 31 or the second base 312, and preventing the connecting rod 42 from being disconnected from the stator base 31 or the second base 312.

[0116] For example, in this embodiment, the first base 311 is fixed to the circulation tank 100 via the second base 312 and the connecting rod 42. Specifically, the first base 311 is fixed to the second base 312, and the second base 312 is fixedly connected to the circulation tank 100 via the connecting rod 42, thereby achieving 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 inserted into the second base 312 and locked to the bottom of the circulation tank 100, and the stop portion 422 of the connecting rod 42 is exposed relative to the top wall of the second base 312 and stops the second base 312.

[0117] Optionally, along the radial direction Y of the circulation tank 100, the distance between the outer edge of the second base 312 and the circulation tank 100 is less than the distance between the first base 311 and the circulation tank 100. Thus, on the one hand, the second base 312 can guide the slurry in the radial direction of the circulation tank 100, causing most of the slurry ejected by the dispersion mechanism 300 to flow toward and along the inner sidewall of the circulation tank 100, extending the circulation path, preventing the slurry discharged from the dispersion mechanism 300 from quickly returning to the through-hole 3101, improving the circulation capacity, and increasing the surface area of ​​the stator base 31 in contact with the slurry, thereby improving the dispersion and mixing effects of the dispersion mechanism 300 on the slurry. The edge of the second base 312 away from the guide sleeve 412 is fixed to the circulation tank 100 via a connecting rod 42. Specifically, the connecting rod 42 is connected outside the area of ​​the second base 312 corresponding to the first base 311 , thereby avoiding interference between the connecting rod 42 and the locking member 44 and avoiding extending the action on the stator 30 .

[0118] For example, in this embodiment, a plurality of connecting rods 42 are detachably connected to the second base 312. Specifically, the connecting rods 42 pass through the second base 312 and are locked to the bottom wall of the bottom of the circulation tank 100. The stopper 422 of the connecting rod 42 is stopped by the second base 312, thereby facilitating the alignment and assembly of the connecting rod 42 and the second base 312, and preventing the connecting rod 42 from being disconnected from the first base 311 or the second base 312. Of course, in some embodiments, the plurality of connecting rods 42 can also be detachably connected to the first base 311, or integrally formed with the first base 311 or the second base 312.

[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 cooperates with 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, a fixed connection between the stator 30 and the circulation tank 100 is achieved, facilitating 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 cooperates with the bolt to facilitate 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 first base 311 or the second base 312 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 first base 311 or the second base 312 passes through the bottom wall of the bottom of the circulation tank 100 and is screwed to the locking member 44. In other embodiments, a threaded hole is provided inside the connecting rod 42, and an outer wall of the connecting rod 42 is provided with an external thread.

[0120] Illustratively, in this embodiment, the top surface of the connecting rod 42 is higher than the top wall of the stator base 31. Specifically, the top surface of the connecting rod 42 is higher than the top wall of the second base 312. The stopper 422 of the connecting rod 42 extends out of the top wall of the second base 312 and stops with the top wall of the second base 312, thereby facilitating the alignment and assembly of the connecting rod 42 with the second base 312 and the circulation tank 100. When the connecting rod 42 is connected to the first base 311, the top surface of the connecting rod 42 is higher than the top wall of the first base 311. The stopper 422 of the connecting rod 42 extends out of the top wall of the first base 311 and stops with the top wall of the first base 311.

[0121] In some embodiments, the plurality of connecting rods 42 are located on the side of the stator base 31 facing the rotor base 11, that is, the top surface of the connecting rod 42 is blocked by the top wall of the stator base 31. Specifically, the plurality of connecting rods 42 are located on the side of the first base 311 or the second base 312 close to the rotor base 11. Thus, on the one hand, the plurality of connecting rods 42 are located on the side of the first base 311 or the second base 312 close to the rotor base 11, thereby avoiding the problem that the connecting rods 42 protrude above the first base 311 or the second base 312 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 and mixing effects of the slurry; on the other hand, In terms of features, the connecting rod 42 is integrally formed with the first base 311 or the second base 312, which is convenient for installation, and improves the stability and reliability of the connection between the connecting rod 42 and the first base 311 or the second base 312, thereby enhancing the stability of the operation of the dispersion mechanism 300 and reducing noise; the connecting rod 42 can also be integrally formed with the first base 311 or the second base 312, thereby facilitating the maintenance, replacement and other operations of the connecting rod 42 and the first base 311 or the second base 312, and facilitating the processing and manufacturing of the connecting rod 42 and the first base 311 or the second base 312.

[0122] A plurality of connecting rods 42 are located on the side of the stator base 31 facing the rotor base 11. The plurality of connecting rods 42 are connected to the bottom wall of the first base 311 or the second base 312. The connecting rods 42 can be directly fixed to the bottom wall of the first base 311 or the second base 312; or, the bottom wall of the first base 311 or the second base 312 is provided with a connecting hole for fixing the connecting rods 42, wherein the connecting hole is a blind hole. Specifically, the top wall of the first base 311 or the second base 312 is configured as a continuous flat surface. Thus, on the one hand, the integrity of the top wall of the first base 311 or the second base 312 is ensured, the problem of material accumulation at the connection between the first base 311 or the second base 312 and the connecting rods 42 is avoided, and cleaning is facilitated; on the other hand, the smoothness of the slurry flow is improved, the reciprocating circulation of the slurry in the circulation tank 100 is promoted, the circulation capacity of the slurry is improved, and the dispersion and mixing effects of the slurry are improved.

[0123] Of course, in some embodiments, at least a portion of the connecting rod 42 is embedded in the stator base 31, and the top surface of the connecting rod 42 is connected to the top wall of the stator base 31 to form a continuous flat surface. Specifically, at least a portion of the connecting rod 42 is embedded in the first base 311 or the second base 312, and the top surface of the connecting rod 42 is connected to the top wall of the first base 311 or the second base 312 to form a continuous flat surface. For example, the top wall of the first base 311 or the top wall of the second base 312 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 first base 311 or the second base 312 is improved, and positioning and installation are facilitated; 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 and mixing effects of the slurry are improved. Of course, in some embodiments, the connecting rod 42 may also be provided to protrude relative to the top wall of the first base 311 or the second base 312 .

[0124] The connecting rod portion 421 of the connecting rod 42 can be configured as a cylindrical rod, and the stop portion 422 of the connecting rod 42 can be configured as a prismatic rod. Of course, in some embodiments, the connecting rod 42 can also be configured as a cylindrical rod entirely. Along the radial direction Y of the circulating pulping apparatus 1000, the portion of the connecting rod 42 corresponding to the stator ring 33 or 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 ensures that the forces acting in all directions are uniform, so that the connecting rod 42 has a maximum bending moment of inertia when subjected to eccentric pressure in all directions, thereby improving the stability and reliability of the connection between the stator 30 and the circulation tank 100. On the other hand, it facilitates 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 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 shape, which is not specifically limited by the present invention. 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 further described here.

[0125] In some embodiments, a shearing structure 423 is provided on the connecting rod 42. The shearing structure 423 is used to provide shearing and breaking up forces on the slurry when the rotor 10 rotates relative to the stator 30. This improves the dispersion effect of the dispersion mechanism 300, increases the contact area between the slurry and the dispersion mechanism 300, reduces the pressure exerted by the slurry on the dispersion mechanism, and increases the service life of the dispersion mechanism 300. The shearing structure 423 can be recessed or projected on the sidewall of the connecting rod 42. One or more shearing structures 423 can be provided. The shearing structure 423 can be configured as, but is not limited to, at least one of a raised dot, a recessed dot, a spiral ridge, a spiral groove, an annular raised dot, or an annular groove. The shearing structure 423 is streamlined, thereby reducing the flow resistance of the slurry, increasing the slurry flow rate, and reducing slurry residue on the sidewall of the connecting rod 42. For example, in this embodiment, the shearing structure 423 is provided on the outer wall of the positioning sleeve 43.

[0126] Optionally, in this embodiment, the shear structure 423 and the connecting rod 42 are integrally formed 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 detachably connected, so that the shear structure 423 can be installed 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. As the rotor 10 of the dispersion mechanism 300 rotates at high speeds and rubs against the slurry, a significant amount of heat is generated. This heat dissipation structure can dissipate the slurry's heat to the exterior of the circulation tank 100, improving the efficiency of heat dissipation and the quality of the slurry. The connecting rod 42 may be configured as a heat dissipation structure as a whole; alternatively, the heat dissipation structure may be provided on its surface.

[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, and is connected to the stator base 31 through a connecting rod 42 to form a dispersion chamber 402, and the rotor 10 is rotatably arranged in the dispersion chamber 402. Thus, on the one hand, the stability and reliability of the connection between the stator base 31 and the inner wall of the bottom of the circulation tank 100 are improved; on the other hand, the connecting base 45 and the stator base 31 can play a guiding role in the radial direction of the circulation tank 100 for the slurry, 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 3101, improving the circulation capacity, and improving the dispersion effect and mixing effect of the slurry; on the other hand, the connection The base 45 and the stator base 31 are connected by a connecting rod 42 to form a dispersion chamber 402, thereby causing most of the slurry in the dispersion chamber 402 to be 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 has not been 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 force of the slurry outside the dispersion mechanism 300 on the internal structure of the dispersion mechanism 300, thereby reducing the energy loss of the fluid in the dispersion mechanism 300 and improving the circulation capacity and dispersion capacity of the dispersion mechanism 300. Specifically, in this embodiment, the connecting base 45 is connected to the second base 312 to form the dispersion chamber 402. The connecting base 45 and the mounting base 24 can be integrally formed; or, the connecting base 45 and the mounting base 24 are fixedly connected by a locking structure, which is not specifically limited in the embodiment of the present utility model.

[0129] Please refer again Figure 1 and Figure 3 , for example, in this 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 can be directly connected; or, they can be fixedly connected through a third-party component, which is not specifically limited in the embodiment of the present utility model. The top wall of the connecting base 45 facing the stator base 31 serves as part of the bottom wall of the circulation tank 100, thereby installing the dispersion mechanism 300 and the circulation tank 100 on the edge, and reducing the gap between the slurry in the connecting base 45 and the bottom wall of the circulation tank 100.

[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 the side of the dispersion mechanism 300 and smoothly transitions to the top wall of the connection base 45 toward the stator base 31. Thus, on the one hand, the inclined tank bottom wall 1012 is used 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 transitioned to the top wall of the connection base 45 toward the stator base 31, thereby preventing some slurry from settling at the bottom and affecting slurry uniformity, improving the fluidity and continuity of the slurry, promoting reciprocating circulation of the slurry, and improving slurry uniformity.

[0131] For example, in this embodiment, a boss portion 451 is provided at the corresponding connection position of the connection base 45, and one end of the connecting rod 42 facing away from the stator base 31 is fixedly connected to the boss portion 451. As a result, the thickness of the connection base 45 is increased, and the reliability and stability of the connection between the connecting rod 42 and the connection base 45 are improved. The boss portion 451 is in the shape of a closed loop. The connection base 45 forms a first flange portion 452 and a second flange portion 453 on both sides of the boss portion 451, and the first flange portion 452 and the second flange portion 453 are each sealed to the connection base 45 and the circulation tank 100 through a seal. 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, easy to clean, and reduces the residue of slurry. The first flange portion 452 or the second flange portion 453 may also be omitted. The structural configuration of the connection base 45 may be adjusted according to actual circumstances and is not specifically limited in this invention. A clearance opening 4502 is provided at the position of the second flange portion 453 corresponding to the discharge pipe 103. This facilitates avoiding assembly interference between the connection base 45 and the circulation tank 100. On the other hand, the clearance opening 4502 can also play a positioning role in the assembly of the connection base 45. Of course, in some embodiments, the clearance opening 4502 and the connection base 45 can be spaced apart.

[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 the side of the dispersion mechanism 300 and smoothly transitions to the top wall of the connection base 45 toward the stator base 31. Thus, on the one hand, the inclined configuration of the tank bottom wall 1012 is used 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 smooth transition between the tank bottom wall 1012 and the top wall of the connection base 45 toward the stator base 31 prevents some slurry from settling at the bottom and affecting slurry uniformity, thereby improving slurry fluidity and continuity, promoting reciprocating circulation of the slurry, and improving slurry uniformity.

[0133] In this embodiment, the central axis P 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 achieving uniform stirring of the slurry by the dispersion mechanism 300, while reducing the energy consumption of the dispersion mechanism 300, reducing production costs, and making the dispersion mechanism 300 occupy less space in the circulation tank 100, thereby improving the compactness of the structure. Of course, in some embodiments, the central axis P of the dispersion mechanism 300 is separated 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 slurry flow layers of different speeds due to the radial asymmetric distribution, reducing the formation of large particle agglomerates, avoiding impact on the components of the circulating pulping equipment 1000, reducing vibration and noise, and improving the mixing and dispersion effects of the slurry. The preset distance can be set according to actual conditions and is not specifically limited in the embodiments of the present utility model.

[0134] Please also refer to Figure 4 、 Figure 8 and Figure 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; Figure 9 yes Figure 8FIG2 is a cross-sectional view of the dispersion mechanism 300 along the axial direction X of the circulating pulping apparatus 1000. In some embodiments, the stator 30 further includes a guide plate 414. The guide plate 414 is disposed at or near the outer edge of the stator base 31 and is tilted outward 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 high speed, negative pressure is generated. Under the action of the negative pressure, part of the slurry above the dispersion mechanism 300 is sucked into the interior of the dispersion mechanism 300 through the through-hole 3101 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 toward the guide plate 414. Since the guide plate 414 plays a guiding role for the slurry, the provision of the guide plate 414 can promote the upward flow of the slurry, thereby achieving better up and down tumbling 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. For example, in this embodiment, the guide plate 414 is provided at the outer edge of the second base 312 and is tilted outward relative to the second base 312 toward the side away from the first base 311. 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. For example, in this 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 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 inside of the stator base 31. The arrangement of the guide plate 414 and the stator base 31 can be set according to actual conditions, and the present utility model 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. Therefore, 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 facilitates the maintenance and replacement of the guide plate 414 and the stator base 31, and facilitates 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 plates 414 are arranged in a circle along the outer edge of the stator base 31. Specifically, the guide plates 414 can be configured as a hollow truncated cone. Of course, in some embodiments, the guide plates 414 can also be configured as an open loop structure. For example, the number of guide plates 414 is set to multiple, and the multiple guide plates 414 are spaced apart and arranged in a circle along the outer edge of the stator base 31. Each guide plate 414 can be configured as a curved plate.

[0138] For example, 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 set in a circular arc, thereby reducing the flow resistance of the slurry, improving the smoothness of the slurry flow, promoting the slurry to perform reciprocating circulation 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 set 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 through more smoothly, thereby improving the circulation capacity of the slurry.

[0139] The guide plate 414 also includes a guide surface 4141 connected to the bottom wall of the stator base 31. The connection between the guide surface 4141 and the bottom wall of the stator base 31 can be set in a circular arc or connected at a sharp angle. The guide surface 4141 can also be provided with an arc-shaped protrusion. The structure of the arc-shaped protrusion is the same as or similar to the structure of the arc-shaped protrusion on the guide surface, and will not be described in detail here. As a result, the guide plate 414 can also guide the slurry thrown out by the dispersion mechanism 300, promote the slurry to better perform reciprocating circulation in the circulation tank 100, improve the circulation capacity of the slurry, and improve the dispersion effect and mixing effect of the slurry.

[0140] Please also refer to Figure 1 、 Figure 3 and Figure 10 , Figure 10 FIG2 is a cross-sectional view of a circulating pulping apparatus 1000 provided in a second embodiment of the present invention. In the second embodiment, the circulating pulping apparatus 1000 further includes a stirring mechanism 500, which 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, which are staggered with the plurality of stirring blades 52. Therefore, based on the dispersion mechanism 300 being set at the bottom of the circulation tank 100 and the stirring mechanism 500 being set 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 dispersion and mixing uniformity of the slurry fluid.

[0141] For example, in this embodiment, the plurality of stirring blades 52 and the plurality of baffles 62 are each tilted relative to the central axis P of the stirring shaft 51. Along the axial direction X of the circulation tank 100, the adjacent stirring blades 52 and baffles 62 form a first stirring unit 710. In the first stirring unit 710, the installation direction of the stirring blades 52 is opposite to the installation direction of the baffles 62. Therefore, on the one hand, the tilted stirring blades 52 and 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 tilted stirring blades 52 and baffles 62 can effectively eliminate the dead corners in the stirring circulation tank 100, prevent the slurry from settling in the dead corners, and improve the slurry mixing effect; on the other hand, based on setting the installation direction of the stirring blades 52 and the installation direction of the baffles 62 to be opposite in the same stirring unit, when the stirring shaft 51 drives the plurality of stirring blades 52 to rotate, the plurality of stirring blades 52 is used to guide the slurry toward the side close to the dispersion mechanism 300, and 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, and the flow path of the slurry will be interrupted by the baffles 62 to extend the residence time of the slurry at the top of the circulation tank 100, and form an inner-bottom, outer-upper 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] In this embodiment, the central axis P of the stirring shaft 51 is coaxially arranged with the central axis P of the dispersion mechanism 300. This allows the slurry discharged from the stirring mechanism 500 to be quickly pushed to the dispersion mechanism 300, shortening the slurry flow path and improving the material absorption capacity of the dispersion mechanism 300. Of course, in some embodiments, the central axis P of the stirring shaft 51 is separated from the central axis P of the dispersion mechanism 300 by a predetermined distance. The predetermined distance can be set according to actual conditions and is not specifically limited in this embodiment of the utility model.

[0143] 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. A plurality of baffles 62 are provided on the fixed shaft 61, thereby improving the assembly efficiency of the spoiler 60 and the circulation tank 100, facilitating processing and manufacturing, as well as 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 provided on the tank cover 120.

[0144] Of course, in some embodiments, the fixed shaft 61 can be omitted, that is, the multiple baffles 62 are fixed to the inner wall of the circulation tank 100. The multiple baffles 62 can be directly fixed to the inner wall of the circulation tank 100; or, they can be fixed to the inner wall of the circulation tank 100 via a connecting plate. In some other embodiments, the stirring mechanism 500 also includes a stirring frame 53, which is fixed to the free end of the stirring shaft 51. The multiple 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 do not need to be installed on the additional fixed shaft 61, making the overall structure of the stirring mechanism 500 compact.

[0145] The stirring frame 53 is disposed around the outside of the stirring member 50 and the spoiler 60. Thus, on the one hand, the stirring frame 53 cooperates with the stirring member 50 and the spoiler 60 to stir the slurry, thereby preventing the slurry from settling. The stirring of the stirring frame 53 is gentler, protecting the slurry, and can fully mix the materials, thereby improving the mixing quality and thus improving production efficiency. On the other hand, the overall structural layout of the stirring mechanism 500 is reasonable and compact.

[0146] 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. The second stirring portion 532 is disposed close to the side wall of the circulation tank 100. Thus, the second stirring portion 532 not only provides centripetal stirring force for the slurry to be stirred, but also scrapes away any slurry to be stirred adhering to the inner wall of the circulation tank 100, thereby improving the stirring effect.

[0147] 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 adhering to the wall and pushing the slurry toward the center area of ​​the circulation tank 100, thereby improving the circulation and dispersion effects of the slurry.

[0148] In some embodiments, the scraping portion 54 can also be arranged on the top wall of the first stirring portion 531 close to the stator base 31, and is used to scrape off the slurry adhering to 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.

[0149] The above is a detailed introduction to the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there may 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 invention.

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 provided at the bottom of the circulation tank (100) and is located in the circulation chamber (101), the dispersion mechanism (300) comprising a rotor (10) and a stator (30), the rotor (10) comprising a rotor base (11) and at least one rotor ring (13) provided on the rotor base (11); The stator (30) comprises a stator base (31), at least one stator ring (33) and a guide sleeve (412); the stator base (31) is fixedly connected to the circulation tank (100); the stator ring (33) is arranged on the stator base (31) and is located on the inner side and / or the outer side of the rotor ring (13); a through hole (3101) communicating with the circulation chamber (101) is provided in the middle of the stator base (31); The guide sleeve (412) is arranged at the edge of the through hole (3101) and is located on a different side of the stator base (31) from the stator ring (33); the inner cavity of the guide sleeve (412) is connected to the through hole (3101); and the protruding height (h) of the guide sleeve (412) relative to the stator base (31) in the axial direction (X) of the circulating pulping equipment (1000) is 0 cm-30 cm.

2. The circulating pulping equipment (1000) according to claim 1, characterized in that: The stator base (31) includes a first base (311) and a second base (312), wherein the second base (312) is arranged on a side of the first base (311) facing away from the rotor base (11) and is fixedly connected to the first base (311), the through hole (3101) passes through the first base (311) and the second base (312), and all the stator rings (33) are arranged on the first base (311). The guide sleeve (412) is arranged at a position of the second base (312) corresponding to the through hole (3101) and extends toward the side facing away from the first base (311).

3. The circulating pulping device (1000) according to claim 2, characterized in that: The first base (311) and the second base (312) are detachably connected, and the guide sleeve (412) and the second base (312) are integrally formed.

4. The circulating pulping equipment (1000) according to claim 1, characterized in that: 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). The guide surface (4121) is inclined relative to the central axis (P) of the guide sleeve (412) and is configured as a plane or a curved surface.

5. The circulating pulping equipment (1000) according to claim 1, characterized in that: A reinforcement structure (413) is provided on the end surface of the guide sleeve (412) facing away from the stator base (31), and the reinforcement structure (413) is configured as an arc-shaped chamfer or an arc-shaped curling edge.

6. The circulating pulping equipment (1000) according to claim 1, characterized in that: The diameter of the top of the guide sleeve (412) is smaller than the diameter of the bottom of the guide sleeve (412); or, the diameter of the top of the guide sleeve (412) is equal to the diameter of the bottom of the guide sleeve (412).

7. The circulating pulping device (1000) according to claim 1, characterized in that: The rotor (10) further includes an impeller (12), which is fixedly arranged relative to the rotor base (11), and the top of the impeller (12) extends into the inner cavity of the guide sleeve (412). The free end of the impeller (12) in the radial direction (Y) of the circulating pulping equipment (1000) is arranged close to the inner wall of the guide sleeve (412); or, the top of the impeller (12) is located outside the inner cavity of the guide sleeve (412).

8. The circulating pulping device (1000) according to claim 7, characterized in that: The impeller (12) comprises a base (121) and blades (122) arranged on the base (121); the base (121) is configured as a truncated cone or a cylinder; and the blades (122) are configured as straight blades, twisted blades or cylindrical blades.

9. The circulating pulping equipment (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.

10. The circulating pulping equipment (1000) according to claim 1, characterized in that: The thickness of the rotor ring (13) along the radial direction (Y) of the circulating pulping device (1000) is a first thickness (D1), the thickness of the stator ring (33) along the radial direction (Y) of the circulating pulping device (1000) is a second thickness (D2), a shear gap (403) is formed between adjacent rotor rings (13) and stator rings (33), a ratio of the first thickness (D1) to the shear gap (403) is greater than or equal to 1.5; and / or, a ratio of the second thickness (D2) to the shear gap (403) is less than or equal to 5; and / or, a ratio of the first thickness (D1) to the second thickness (D2) is greater than or equal to 1.

5.

11. The circulating pulping device (1000) according to claim 10, 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.

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

2.

13. 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.

14. 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 the adjacent rotor rings (13) and the 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.

15. 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.

16. 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.

17. The circulating pulping device (1000) according to claim 1, characterized in that: The rotor ring (13) is provided with a plurality of first shearing grooves (131) along the circumferential direction (Z) of the circulating pulping device (1000); the stator ring (33) is provided with a plurality of second shearing grooves (331) connected to the plurality of first shearing grooves (131) along the circumferential direction (Z) of the circulating pulping device (1000); an angle formed by the slotting direction of the first shearing groove (131) and the rotation direction of the rotor (10) is a first angle (α), which is recorded as α; an angle formed by the slotting direction of the second shearing groove (331) and the rotation direction of the rotor (10) is a second angle (β), which is recorded as β, wherein 90°≤α<180°, and 0°<β≤90°.

18. The circulating pulping device (1000) according to claim 17, characterized in that: 110°≤α≤160°，20°≤β≤70°。 19. 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.

20. The circulating pulping device (1000) according to claim 1, characterized in that: The rotor ring (13) is provided in plurality, 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 ring (33) is provided with a plurality of second shear grooves (331) connected to the plurality of first shear grooves (131) along the circumferential direction (Z) of the circulating pulping device (1000), 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).

21. 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.

22. 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).

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