Circulating pulping equipment

Abstract

The utility model discloses circulating pulping equipment which comprises a circulating tank for storing pulp and a dispersing mechanism arranged in the middle of the circulating tank. The dispersing mechanism is provided with a first dispersing cavity, a second dispersing cavity, a first feeding hole and a second feeding hole, a first stator ring and a first rotor ring rotationally matched with the first stator ring are arranged in the first dispersing cavity, and a second stator ring and a second rotor ring rotationally matched with the second stator ring are arranged in the second dispersing cavity; the first feeding hole is formed in the top of the dispersing mechanism and communicated with the first dispersing cavity, and the second feeding hole is formed in the bottom of the dispersing mechanism and communicated with the second dispersing cavity. By adopting the circulating pulping equipment disclosed by the utility model, on one hand, a circulating pipeline and a circulating pump are omitted, and the flowing resistance of the pulp is small; and on the other hand, most of the slurry in the circulating tank can participate in circulating motion, so that the dispersing capacity and the circulating capacity of the circulating pulping equipment are improved, and the large-flow circulating pulping requirement is met.

Description

Technical Field

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

[0002] In the existing circulating pulping equipment, the dispersion mechanism is set at the bottom of the circulation tank, so that most of the pulp at the top of the circulation tank does not participate in the circulation movement, which leads to poor circulation capacity of the circulating pulping equipment, uneven dispersion and mixing of the pulp, and inability to meet the requirements of large-flow circulating pulping. Utility Model Content

[0003] In view of this, one purpose of the present invention is to provide a circulating pulping equipment to solve the technical problems of the circulating pulping equipment in the prior art, such as poor circulation capacity, uneven slurry dispersion and mixing, and inability to meet the requirements of large-flow circulating pulping.

[0004] In a first aspect, an embodiment of the present invention provides a circulating pulping device, comprising a circulation tank and a dispersion mechanism. The circulation tank is used to store slurry. The dispersion mechanism is arranged in the middle of the circulation tank. The dispersion mechanism is provided with a first dispersion chamber, a second dispersion chamber, a first feed hole and a second feed hole. A first stator ring and a first rotor ring that rotates with the first stator ring are provided in the first dispersion chamber. A second stator ring and a second rotor ring that rotates with the second stator ring are provided in the second dispersion chamber. The first feed hole is provided at the top of the dispersion mechanism and is communicated with the first dispersion chamber. The second feed hole is provided at the bottom of the dispersion mechanism and is communicated with the second dispersion chamber.

[0005] In combination with the first aspect, in certain implementations of the first aspect, the dispersion mechanism includes at least one stator base and one rotor base, the first stator ring and the second stator ring are connected to all the stator bases to form a stator, the first rotor ring and the second rotor ring are connected to form a rotor, and are respectively located at both end surfaces of the rotor base in the axial direction of the circulating pulping equipment; or,

[0006] The dispersion mechanism includes a stator base and two rotor bases, the first stator ring and the second stator ring are connected to form a stator, and are respectively located at the two end surfaces of the stator base in the axial direction of the circulating pulping equipment, the first rotor ring is connected to one of the rotor bases to form a first rotor, and the second rotor ring is connected to the other one of the rotor bases to form a second rotor; or,

[0007] The dispersion mechanism includes two stator bases and a rotor base, the first stator ring is connected to one of the stator bases to form a first stator, the second stator ring is connected to the other of the stator bases to form a second stator, the first rotor ring and the second rotor ring are connected to form a rotor, and are respectively located at the two end surfaces of the rotor base in the axial direction of the circulating pulping equipment; or,

[0008] The dispersion mechanism includes two stator bases and two rotor bases, the first stator ring is connected to one of the stator bases to form a first stator, the second stator ring is connected to the other of the stator bases to form a second stator, the first rotor ring is connected to one of the rotor bases to form a first rotor, and the second rotor ring is connected to the other of the rotor bases to form a second rotor.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the first dispersion chamber and the second dispersion chamber are separated in the axial direction of the circulating pulping equipment; or, the dispersion mechanism is further provided with at least one connecting hole, and the first dispersion chamber and the second dispersion chamber are connected through at least one connecting hole.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the area of ​​the first feed hole is equal to the area of ​​the second feed hole; or, the area of ​​the first feed hole is smaller than the area of ​​the second feed hole.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the first stator ring and the second stator ring are mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism, and the first rotor ring and the second rotor ring are mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment further includes a lifting adjustment member, and the lifting adjustment member is used to adjust the working height of the dispersion mechanism in the circulation tank.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment includes a guide rod, and the guide rod is used to limit the dispersion mechanism to rise and fall in the axial direction of the circulating pulping equipment.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment further includes a water level detection component, which is used to detect the water level height of the slurry in the circulation tank, and the lifting and adjusting component is used to adjust the working height of the dispersion mechanism in the circulation tank according to the current water level height.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the dispersion mechanism also includes a rotating shaft connected to the rotor base, the first feed hole and the second feed hole are both arranged on the stator base, the rotating shaft is passed through the first feed hole and / or the second feed hole, and is gap-fitted with the first feed hole and / or the second feed hole; or, the first feed hole and the second feed hole are both arranged on the rotor base, and an installation hole is also provided on the rotor base, the installation hole is rotatably fitted with the rotating shaft, and is spaced apart from the first feed hole and the second feed hole in the radial direction of the circulating pulping equipment.

[0016] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment further includes a first stirring blade and / or a second stirring blade, and the first stirring blade and the second stirring blade are both arranged on the rotating shaft and are respectively located at the top and bottom of the dispersion mechanism.

[0017] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment also includes a scraping paddle, which includes a rotating shaft and scraping blades. The rotating shaft is rotatably connected to the circulation tank and is independently arranged from the rotating shaft. The scraping blades are rotatably connected to the rotating shaft and are arranged close to the inner wall of the circulation tank.

[0018] In combination with the first aspect, in certain implementations of the first aspect, in the radial direction of the circulating pulping equipment, the outermost first rotor ring is located outside all the first stator rings; the outermost second rotor ring is located outside all the second stator rings.

[0019] In combination with the first aspect, in certain implementations of the first aspect, the first stator ring and / or the first rotor ring are provided in plurality, and the thickness of the plurality of first rotor rings and / or the plurality of first stator rings in the radial direction of the circulating pulping equipment gradually increases from the inside to the outside; the second stator ring and / or the second rotor ring are provided in plurality, and the thickness of the plurality of second rotor rings and / or the plurality of second stator rings in the radial direction of the circulating pulping equipment gradually increases from the inside to the outside.

[0020] In combination with the first aspect, in certain implementations of the first aspect, the first rotor ring and the second rotor ring are each provided with a plurality of rotor slots along the circumferential direction of the circulating pulping equipment, and the first stator ring and the second stator ring are each provided with a plurality of stator slots along the circumferential direction of the circulating pulping equipment, and the slotting direction of the stator slots is opposite to the slotting direction of the rotor slots.

[0021] In combination with the first aspect, in certain implementations of the first aspect, the dispersion mechanism further includes two impellers, one of which is located in the innermost ring of the first rotor ring, and the other impeller is located in the innermost ring of the second rotor ring.

[0022] In combination with the first aspect, in certain implementations of the first aspect, each of the impellers includes a base and a plurality of blades, and the plurality of blades are spaced apart on an outer side wall of the base along a radial direction of the circulating pulping equipment.

[0023] In combination with the first aspect, in certain implementations of the first aspect, there are two stator bases, and in the axial direction of the circulating pulping equipment, the two stator bases are located on both sides of the rotor base. A guide plate is provided on the outer edge of at least one of the stator bases, and the guide plate is inclined outward relative to the stator base toward the side away from the rotor base, and the guide plate is configured as an arc-shaped plate.

[0024] In combination with the first aspect, in certain implementations of the first aspect, the circulating pulping equipment further includes a heat sink, and the heat sink is disposed in the circulation tank.

[0025] The circulating pulping equipment provided by the present invention is based on arranging a dispersion mechanism in a circulation tank. On the one hand, it realizes the internal circulation movement of the slurry in a single circulation tank through the dispersion mechanism, eliminating the circulation pipe and the circulation pump, and the slurry flow resistance is small; on the other hand, it is based on arranging the dispersion mechanism in the middle of the circulation tank, and arranging a first feed hole and a second feed hole with opposite suction directions at the top and bottom of the dispersion mechanism, so that the slurry above the dispersion mechanism is sucked into the first dispersion chamber from the first feed hole, and is discharged to the inner wall of the circulation tank after being sheared and dispersed by the first stator ring and the first rotor ring, and the slurry below the dispersion mechanism is sucked into the second dispersion chamber from the second feed hole, and is discharged to the inner wall of the circulation tank after being sheared and dispersed by the second stator ring and the second rotor ring, so that the slurry can form a plurality of reciprocating flow paths after being sheared and dispersed by the dispersion mechanism, so that most of the slurry in the circulation tank can participate in the circulation movement, thereby improving the dispersion ability and circulation ability of the circulating pulping equipment, improving the dispersion and mixing uniformity of the slurry fluid, and meeting the requirements of large-flow circulating pulping. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] 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.

[0027] Figure 1It is a cross-sectional view of the circulating pulping equipment provided by the first embodiment of the present utility model.

[0028] Figure 2 yes Figure 1 Schematic diagram of the structure of the decentralized structure of the circulating pulping equipment.

[0029] Figure 3 yes Figure 1 Exploded view of a first embodiment of the decentralized structure of the circulating pulping device.

[0030] Figure 4 yes Figure 1 Exploded view of a second embodiment of the decentralized structure of the circulating pulping device.

[0031] Figure 5 yes Figure 2 Cross-sectional view of the dispersed structure of the circulating pulping equipment along line AA.

[0032] Figure 6 yes Figure 2 Cross-sectional view of the dispersed structure of the circulating pulping equipment along line BB.

[0033] Figure 7 yes Figure 1 A cross-sectional view of a third embodiment of the dispersed structure of the circulating pulping equipment.

[0034] Figure 8 yes Figure 1 A cross-sectional view of a fourth embodiment of the dispersed structure of the circulating pulping equipment.

[0035] Figure 9 It is a cross-sectional view of the circulating pulping equipment provided by the second embodiment of the present utility model.

[0036] Figure 10 It is a cross-sectional view of the circulating pulping equipment provided by the third embodiment of the present utility model.

[0037] Explanation of main reference numerals: circulating pulping equipment 1000; circulating tank 100; circulating chamber 101; tank top wall 1011; tank bottom wall 1012; tank side wall 1013; discharge pipe 103; tank body 110; tank cover 120; dispersion mechanism 300; first dispersion chamber 301; second dispersion chamber 302; first feed hole 303; second feed hole 304; connecting hole 305; rotor 10; rotor base 11; mounting hole 1101; first rotor ring 12; second rotor ring 13; mounting sleeve 14; guide surface 141; first rotor 15; second rotor 16; rotor slot 131; impeller 20; base 21; blade 22; stator 30; stator base Seat-31; positioning groove-3101; first stator ring-32; second stator ring-33; first stator-35; second stator-36; stator slot-331; guide plate-37; rotating shaft-41; connecting rod-42; connecting rod portion-421; stop portion-422; positioning sleeve-43; support rod-45; lifting adjustment member-51; guide rod-52; water level detection member-53; heat sink-55; first stirring blade-61; second stirring blade-62; scraper paddle-70; rotating shaft-71; scraper paddle-72; scraper arm-721; first arm-7211; second arm-7212; scraper portion-722; auxiliary paddle-73; axial direction-X; radial direction-Y; circumferential direction-Z; central axis-P.

[0038] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0039] 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.

[0040] 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.

[0041] 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.

[0042] 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.

[0043] 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).

[0044] 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.

[0045] 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 dispersed structure of the circulating pulping equipment 1000; Figure 3 yes Figure 1 The figure shows an exploded view of a first embodiment of a dispersion structure of a circulating pulping device 1000. The circulating pulping device 1000 includes a circulation tank 100 and a dispersion mechanism 300. The circulation tank 100 is used to store slurry. The dispersion mechanism 300 is provided with a first dispersion chamber 301, a second dispersion chamber 302, a first feed hole 303 and a second feed hole 304. A first stator ring 32 and a first rotor ring 12 that rotates with the first stator ring 32 are provided in the first dispersion chamber 301. A second stator ring 33 and a second rotor ring 13 that rotates with the second stator ring 33 are provided in the second dispersion chamber 302. The first feed hole 303 is provided at the top of the dispersion mechanism 300 and is communicated with the first dispersion chamber 301. The second feed hole 304 is provided at the bottom of the dispersion mechanism 300 and is communicated with the second dispersion chamber 302.

[0046] The circulating pulping equipment 1000 provided by the embodiment of the present invention is based on arranging the dispersion mechanism 300 in the circulation tank 100. On the one hand, the slurry is circulated in the interior of the single circulation tank 100 through the dispersion mechanism 300, eliminating the circulation pipe and the circulation pump, and the slurry flow resistance is small; on the other hand, based on arranging the dispersion mechanism 300 in the middle of the circulation tank 100 and arranging the first feed hole 303 and the second feed hole 304 with opposite suction directions at the top and bottom of the dispersion mechanism 300, the slurry above the dispersion mechanism 300 is sucked into the first dispersion chamber 301 from the first feed hole 303 and is sucked into the first dispersion chamber 301 through the first stator ring 304. 32 and the first rotor ring 12 are sheared and dispersed and then discharged to the inner wall of the circulation tank 100, and the slurry below the dispersion mechanism 300 is sucked into the second dispersion chamber 302 from the second feed hole 304, and is sheared and dispersed by the second stator ring 33 and the second rotor ring 13 and then discharged to the inner wall of the circulation tank 100, so that the slurry can form a plurality of reciprocating flow paths after being sheared and dispersed by the dispersion mechanism 300, so that most of the slurry in the circulation tank 100 can participate in the circulation motion, thereby improving the dispersion ability and circulation ability of the circulating pulping equipment 1000, improving the dispersion and mixing uniformity of the slurry fluid, and meeting the requirements of large-flow circulating pulping.

[0047] Specifically, a circulation chamber 101 is provided in the circulation tank 100. The dispersion mechanism 300 is located in the middle of the circulation chamber 101, and is used to disperse the slurry stored in the circulation chamber 101. For example, 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, adhesive powders and other powder materials. Liquids include but are not limited to liquids such as conductive agent solutions and adhesive 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.

[0048] 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 application, and does not constitute a specific limitation on the circulating pulping device 1000. In other embodiments of the present application, the circulating pulping device 1000 may include Figure 1 More or fewer components, or combinations of certain components, or different components, such as the circulating pulping apparatus 1000 may also include but are not limited to temperature sensors, etc. The temperature sensor is used to detect the temperature of the pulp in the circulation tank 100 .

[0049] For the accuracy of description, please refer to the direction in this article. Figure 1 For 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 application does not make specific restrictions. For the convenience of description, the directions such as up, down, left and right in this application are relative positions and do not constitute a limitation to the implementation.

[0050] In this embodiment, the circulation tank 100 includes a tank body 110 and a tank cover 120 sealed to the tank body 110. The tank cover 120 is detachably connected to the tank body 110, thereby facilitating the assembly, maintenance, tilting, and other operations of the various components of the circulating pulping equipment 1000. Specifically, the dispersion mechanism 300 is disposed at the bottom of the tank body 110 facing away from the tank cover 120. This facilitates the assembly of the circulation tank 100 and the dispersion mechanism 300, resulting in a reasonable layout and a compact structure, and convenient operations such as cleaning and maintenance of the components of the circulating pulping equipment 1000. The tank body 110 and the tank cover 120 can be sealed by a seal to prevent leakage of the slurry.

[0051] 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.

[0052] 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.

[0053] 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 the mixing and dispersion effect.

[0054] 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 central axis P of the circulation tank 100 and smoothly connects with the tank side wall 1013, thereby preventing some slurry from settling at the bottom and affecting slurry uniformity, improving slurry fluidity and continuity, promoting reciprocating circulation of the slurry, and improving slurry uniformity.

[0055] like Figure 3 As shown, in the first embodiment, the dispersion mechanism 300 includes two stator bases 31 and a rotor base 11. The first stator ring 32 is connected to one of the stator bases 31 to form a first stator 35, and the second stator ring 33 is connected to the other stator base 31 to form a second stator 36. The first rotor ring 12 and the second rotor ring 13 are connected to form a rotor 10 and are located at the two end surfaces of the rotor base 11 in the axial direction X of the circulating pulping apparatus 1000. In other words, the dispersion mechanism 300 includes a rotor 10 and two stators 30. The two stators 30 are the first stator 35 and the second stator 36. Thus, the rotor base 11 integrates the first rotor ring 12 and the second rotor ring 13 into a monolithic structure. This ensures that the first and second rotor rings 12, 13 rotate synchronously at the same angular velocity, thereby improving the uniformity of dispersion and mixing of the slurry above and below the dispersion mechanism 300 and enhancing slurry quality. Furthermore, this improves the processing and assembly efficiency of the rotor 10, reduces costs, and ensures precision.

[0056] Please also refer to Figure 4 , Figure 4 yes Figure 1 Exploded view of a second embodiment of the dispersion structure of the circulating pulping equipment 1000 in FIG. In the second embodiment, the dispersion mechanism 300 includes a stator base 31 and two rotor bases 11. The first stator ring 32 and the second stator ring 33 are connected to form a stator 30, and are respectively located on the two end surfaces of the stator base 31 in the axial direction X of the circulating pulping equipment 1000. The first rotor ring 12 is connected to one of the rotor bases 11 to form a first rotor 15. The second rotor ring 13 is connected to the other rotor base 11 to form a second rotor 16. In other words, the dispersion mechanism 300 includes a stator 30 and two rotors 10. The two rotors 10 are the first rotor 15 and the second rotor 16, respectively. Thus, the stator base 31 integrates the first stator ring 32 and the second stator ring 33 into an integral structure, thereby improving the processing and assembly efficiency of the stator 30, reducing costs, ensuring precision, and improving the assembly efficiency of the stator 30 and the circulation tank 100.

[0057] Of course, in some embodiments, the dispersion mechanism 300 includes at least one stator base 31 and a rotor base 11. The first stator ring 32 and the second stator ring 33 are connected to all stator bases 31 to form a stator 30. The first rotor ring 12 and the second rotor ring 13 are connected to form a rotor 10, and are respectively located at the two end surfaces of the rotor base 11 in the axial direction X of the circulating pulping apparatus 1000. In other words, the dispersion mechanism 300 includes a rotor 10 and a stator 30. For example, the first stator ring 32 and the second stator ring 33 are connected to form a cylindrical structure, and the stator base 31 is connected to one end of the first stator ring 32 and / or the second stator ring 33; alternatively, the stator base 31 is connected between the first stator ring 32 and the second stator ring 33. Of course, in some embodiments, the stator base 31 may be omitted. The rotor 10 is rotatably disposed within the inner cavity of the stator 30.

[0058] In other embodiments, the dispersion mechanism 300 includes two stator bases 31 and two rotor bases 11. The first stator ring 32 is connected to one of the stator bases 31 to form a first stator 35, the second stator ring 33 is connected to the other of the stator bases 31 to form a second stator 36, the first rotor ring 12 is connected to one of the rotor bases 11 to form a first rotor 15, and the second rotor ring 13 is connected to the other of the rotor bases 11 to form a second rotor 16. In other words, the dispersion mechanism 300 includes two rotors 10 and two stators 30. The two rotors 10 are the first rotor 15 and the second rotor 16, respectively, and the two stators 30 are the first rotor 15 and the second rotor 16, respectively.

[0059] Please refer again Figure 1 and Figure 3 The circulating pulping apparatus 1000 further includes a rotating shaft 41. In this embodiment, at least one end of the rotating shaft 41 is rotatably connected to the circulation tank 100, the rotor base 11 is fixedly connected to the rotating shaft 41, and the stator base 31 is fixedly connected to the circulation tank 100. Thus, the rotating shaft 41 can drive the rotor base 11, along with the first rotor ring 12 and the second rotor ring 13, to rotate, and rotate in conjunction with the first stator ring 32 and the second stator ring 33, respectively, thereby promoting collision and shearing of particles in the slurry, thereby achieving fine dispersion of the slurry and improving the quality of the slurry.

[0060] The dispersion mechanism 300 also includes a connecting rod 42 and a support rod 45. One end of the support rod 45 is connected to the circulation tank 100, and the other end of the support rod 45 is connected to the connecting rod 42. The stator base 31 is fixedly connected to the support rod 45 via the connecting rod 42. This facilitates the assembly, maintenance, and replacement of the dispersion mechanism 300 and the circulation tank 100, as well as the adjustment of the working height of the dispersion mechanism 300 in the circulation tank 100. Specifically, in this embodiment, the two stator bases 31 are respectively provided with connecting holes, and the connecting rod 42 includes a connecting rod portion 421 and a stopper portion 422 provided on one side of the connecting rod portion 421. The connecting rod portion 421 is passed through the two connecting holes and locked on the support rod 45, and the stopper portion 422 stops the stator base 31 away from the support rod 45. Of course, in some embodiments, the connecting rod 42 can be omitted, that is, the stator base 31 is directly fixedly connected to the support rod 45.

[0061] The dispersion mechanism 300 can be connected to the top of the circulation tank 100 via a support rod 45. Specifically, the support rod 45 is fixedly connected to the tank cover 120. Thus, on the one hand, it is convenient to assemble the dispersion mechanism 300 with the circulation rod, and to facilitate operations such as cleaning, maintenance, and replacement of various parts in the circulation tank 100; on the other hand, the stopper 422 of the connecting rod 42 is directed toward the bottom wall of the circulation tank 100 relative to the stator base 31, thereby avoiding the slurry from being deposited at the stopper 422 and the stator base 31, and avoiding the problem of the dispersion mechanism 300 being easily connected to the bottom of the circulation tank 100 and forming a dead angle area, thereby improving the mixing uniformity of the slurry. Of course, in some embodiments, the dispersion mechanism 300 can also be connected to the bottom of the circulation rod via a support rod 45. The support rod 45 is fixedly connected to the bottom of the tank body 110. In some other embodiments, the dispersion mechanism 300 can also be connected to the top and bottom of the circulation rod via a support rod 45.

[0062] The connecting rods 42 and the support rods 45 are each provided in plurality. The number of the support rods 45 is the same as the number of the connecting rods 42, and the connecting rods 42 and the support rods 45 are connected in a one-to-one correspondence. Of course, in some embodiments, the number of the connecting rods 42 may be greater than the number of the support rods 45. Optionally, the connecting rods 42 may connect the two stator bases 31 to form a whole, thereby improving the stability of the operation of the dispersion mechanism 300 and reducing noise. The plurality of support rods 45 are evenly arranged along the circumferential direction Z of the dispersion mechanism 300, so that the forces in all directions of the dispersion mechanism 300 are roughly the same, so as to improve the stability of the operation of the dispersion mechanism 300.

[0063] In some embodiments, the dispersion mechanism 300 further includes a positioning sleeve 43. One end of the positioning sleeve 43 is connected to one of the stator bases 31, and the other end of the positioning sleeve 43 is connected to the other stator base 31. 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 support rod 45, thereby avoiding displacement of the two stator bases 31; 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 two stator bases 31, thereby improving the reliability and stability of the connection between the two stator bases 31 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 avoiding loosening of the connecting rod 42, thereby improving the reliability and stability of the connection between the two stator bases 31 and the connecting rod 42.

[0064] Specifically, a positioning groove 3101 is provided on the surface of the stator base 31 facing the rotor base 11. The positioning sleeve 43 is installed in the positioning groove 3101 and cooperates with the positioning groove 3101, thereby facilitating the assembly of the positioning sleeve 43 with the stator base 31 and preventing the connection rod 42 from shifting in the axial direction X, radial direction Y, or axial direction X of the circulating pulping equipment 1000, thereby improving the stability and reliability of the connection between the connection rod 42 and the support rod 45.

[0065] like Figure 3 As shown, in the first embodiment, one of the stator bases 31 is provided with a first feed hole 303, and the other stator base 31 is provided with a second feed hole 304. The two stator bases 31 and the rotor base 11 respectively form a first dispersion chamber 301 connected to the first feed hole 303 and a second dispersion chamber 302 connected to the second feed hole 304. The first dispersion chamber 301 and the second dispersion chamber 302 are separated in the axial direction X of the circulating pulping apparatus 1000. Therefore, the rotor base 11 separates the first dispersion chamber 301 and the second dispersion chamber 302 in the axial direction X of the circulating pulping equipment 1000. On the one hand, it better controls the mixing and dispersion process of the slurry in the first dispersion chamber 301 and the second dispersion chamber 302, ensuring that the slurry in the first dispersion chamber 301 and the second dispersion chamber 302 can be fully mixed and dispersed, thereby avoiding the occurrence of local concentrations that are too high or too low, and ensuring the uniformity of the battery slurry; on the other hand, the first dispersion chamber 301 and the second dispersion chamber 302 are independently arranged, which can better control the particle distribution in the slurry and avoid excessive aggregation between particles.

[0066] It can be understood that when the rotor 10 of the dispersion mechanism 300 rotates following the rotating shaft 41, a negative pressure zone is formed in the inner cavity of the dispersion mechanism 300. Since the rotor base 11 divides the interior of the dispersion mechanism 300 into a first dispersion chamber 301 and a second dispersion chamber 302, the slurry in the circulation tank 100 will be sucked into the inner cavity of the dispersion mechanism 300 from the upper and lower directions of the dispersion mechanism 300. The slurry collides, rubs, and shears between the first dispersion ring and the second dispersion ring due to the high-speed rotation of the rotor 10 of the dispersion mechanism 300, and is ejected from all sides of the dispersion mechanism 300 toward the side wall of the circulation tank 100. After the ejected slurry collides with the side wall of the circulation tank 100, it changes its flow direction to form turbulence, and performs reciprocating circulation motion above and below the dispersion mechanism 300. Specifically, the slurry above the dispersion mechanism 300 is sucked into the first dispersion chamber 301 from the first feed hole 303, and collides, rubs, and shears between the first rotor ring 12 and the first stator ring 32, and is ejected from the four sides of the dispersion mechanism 300 toward the side wall of the circulation tank 100. The ejected slurry changes its flow direction under the resistance of the circulation tank 100 and flows upward along the side wall of the circulation tank 100, thereby realizing the reciprocating circulation of the slurry above the dispersion mechanism 300; and the slurry below the dispersion mechanism 300 is sucked into the second dispersion chamber 302 from the second feed hole 304, and collides, rubs, and shears between the second rotor ring 13 and the second stator ring 33, and is ejected from the four sides of the dispersion mechanism 300 toward the side wall of the circulation tank 100. The ejected slurry changes its flow direction under the resistance of the circulation tank 100 and flows downward along the side wall of the circulation tank 100, thereby realizing the reciprocating circulation of the slurry below the dispersion mechanism 300. Therefore, in the circulating pulping equipment 1000 of the present application, the slurry can form multiple reciprocating flow paths after being sheared and dispersed by the dispersion mechanism 300, so that most of the slurry in the circulation tank 100 can participate in the circulation movement, thereby improving the dispersion ability and circulation ability of the circulating pulping equipment 1000, improving the dispersion and mixing uniformity of the slurry fluid, and meeting the requirements of large-flow circulating pulping.

[0067] Of course, in some embodiments, the first dispersion chamber 301 and the second dispersion chamber 302 may be interconnected. For example, the rotor base 11 may be provided with at least one communication hole 305, through which the first dispersion chamber 301 and the second dispersion chamber 302 are connected. Thus, the provision of the communication hole 305 can encourage the entire slurry in the circulation tank 100 to participate in the reciprocating circulation motion, thereby preventing the slurry from circulating in a single area within the circulation tank 100 and reducing slurry uniformity.

[0068] Please refer again Figure 4In the second embodiment, one rotor base 11 is provided with a first feed hole 303, and the other rotor base 11 is provided with a second feed hole 304. The two rotor bases 11 and the stator base 31 respectively form a first dispersion chamber 301 connected to the first feed hole 303 and a second dispersion chamber 302 connected to the second feed hole 304. The stator base 31 is also provided with at least one connecting hole 305 connecting the first dispersion chamber 301 and the second dispersion chamber 302.

[0069] For example, in this embodiment, the area of ​​the first feed hole 303 is equal to the area of ​​the second feed hole 304. This facilitates the processing and manufacturing of the dispersion mechanism 300, enables batch production, saves costs, and reduces assembly errors.

[0070] Of course, in some embodiments, the area of ​​the first feed hole 303 is smaller than the area of ​​the second feed hole 304. It can be understood that since the first feed hole 303 is located above the dispersion mechanism 300 and the second feed hole 304 is located below the dispersion mechanism 300, the slurry above the dispersion mechanism 300 enters the first dispersion chamber 301 from the first feed hole 303 under the action of gravity and negative pressure at a relatively fast speed, while the slurry below the dispersion mechanism 300 enters the second dispersion chamber 302 from the second feed hole 304 under the action of reverse gravity and negative pressure at a relatively slow speed. Therefore, the present application sets the area of ​​the first feed hole 303 to be smaller than the area of ​​the second feed hole 304, so that the flow rate and flow rate of the slurry above and below the dispersion mechanism 300 are roughly the same, ensuring that the dispersion effect of each dispersion area of ​​the dispersion mechanism 300 remains consistent and the dispersion is uniform, thereby improving the dispersion effect and mixing effect.

[0071] Please refer again Figure 1 and Figure 3 The first stator 35 and the second stator 36 are located on both sides of the rotor 10 in the axial direction X of the circulating pulping equipment 1000. The dispersion mechanism 300 also includes a rotating shaft 41 connected to the rotor base 11. The first feed hole 303 and the second feed hole 304 are both provided on the stator base 31. The rotating shaft 41 passes through the first feed hole 303 and / or the second feed hole 304 and has a clearance fit with the first feed hole 303 and / or the second feed hole 304. As a result, the top slurry can enter the first dispersion chamber 301 from the gap between the rotating shaft 41 and the hole wall of the first feed hole 303, and the bottom slurry can enter the second dispersion chamber 302 from the gap between the rotating shaft 41 and the hole wall of the second feed hole 304.

[0072] Please refer again Figure 2 、 Figure 3 and Figure 5 , Figure 5 yes Figure 2A cross-sectional view of the dispersion structure of the circulating pulping equipment 1000 along line AA. In some embodiments, a mounting sleeve 14 is provided on the rotor base 11. The rotating shaft 41 is passed through the mounting sleeve 14, thereby improving the reliability and stability of the connection between the rotating shaft 41 and the rotor 10. Specifically, in this embodiment, the mounting sleeve 14 is provided on the side of the rotor base 11 facing the first stator 35, and the mounting sleeve 14 is passed through the first feed hole 303 and is spaced apart from the stator base 31, so as to enable the top slurry to enter the first dispersion chamber 301 from the gap formed between the outer wall of the mounting sleeve 14 and the hole wall of the first feed hole 303. Of course, in some embodiments, the mounting sleeve 14 is passed through the second feed hole 304; alternatively, the mounting sleeve 14 can also be passed through the first feed hole 303 and the second feed hole 304. A guide surface 141 is provided on the outer wall of the mounting sleeve 14 near the bottom end of the rotor base 11. The guide surface 141 is tilted relative to the central axis of the dispersion mechanism 300, thereby avoiding the formation of a dead zone in the slurry, improving the flow smoothness of the slurry, and promoting the circulation effect of the slurry.

[0073] Please refer again Figure 1 and Figure 4 , the first rotor 15 and the second rotor 16 are located on both sides of the stator 30 in the axial direction X of the circulating pulping equipment 1000. The first feed hole 303 and the second feed hole 304 are both provided on the rotor base 11. The rotor base 11 is also provided with a mounting hole 1101. The mounting hole 1101 is rotatably engaged with the rotating shaft 41 and is spaced apart from the first feed hole 303 and the second feed hole 304 in the radial direction Y of the circulating pulping equipment 1000. In this way, the top slurry can enter the first dispersion chamber 301 from the first feed hole 303, and the bottom slurry can enter the second dispersion chamber 302 through the second feed hole 304. In the second embodiment, a plurality of first feed holes 303 are provided on one of the rotor bases 11, and a plurality of second feed holes 304 are provided on the other rotor base 11. The plurality of first feed holes 303 and the plurality of second feed holes 304 are symmetrically arranged relative to the central axis of the rotating shaft 41, thereby enabling the slurry to be more evenly distributed within the first dispersion chamber 301 and the second dispersion chamber 302, thereby improving the uniformity of the slurry dispersion. Specifically, two first feed holes 303 and two second feed holes 304 are each provided, thereby increasing the feeding efficiency of the dispersion mechanism 300. It should be noted that the number of each of the first feed hole 303 and the second feed hole 304 can also be one or more, and this is not specifically limited in the present embodiment.

[0074] For example, in this embodiment, the first stator ring 32 and the second stator ring 33 are mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism 300, and the first rotor ring 12 and the second rotor ring 13 are mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism 300. Thus, on the one hand, the flow rate and flow velocity of the slurry above and below the dispersion mechanism 300 are approximately consistent, ensuring consistent and uniform dispersion in each dispersion area of ​​the dispersion mechanism 300, thereby improving the dispersion and mixing effects. On the other hand, this facilitates the processing and manufacturing of the dispersion mechanism 300, avoids uneven force on the rotating shaft 71 and reduces its service life, and improves energy efficiency. Of course, in some embodiments, the first stator ring 32 and the second stator ring 33 may be non-mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism 300, and / or the first rotor ring 12 and the second rotor ring 13 may be non-mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism 300.

[0075] In some embodiments, the circulating pulping equipment 1000 further includes a lifting adjustment member 51. The lifting adjustment member 51 is used to adjust the working height of the dispersion mechanism 300 in the circulation tank 100. It is understandable that improper setting of the working height of the dispersion mechanism 300 may cause the flow of the slurry in the circulation tank 100 to be obstructed, reduce the dispersion efficiency, and even lead to the risk of blockage in the dispersion mechanism 300. Therefore, based on the addition of the lifting adjustment member 51 to adjust the working height of the dispersion mechanism 300 in the circulation tank 100, on the one hand, it ensures that the slurry will not stagnate due to viscosity changes during the circulation process in the circulation tank 100, thereby maintaining the uniformity and stability of the slurry, and avoiding the problem of dead zones in the slurry in the circulation tank 100, thereby improving the uniformity of the slurry mixing; on the other hand, the dispersion mechanism 300 can adapt to slurries of different storage amounts, thereby improving the flexibility of the use of the dispersion mechanism 300. It should be noted that the working height refers to the height between the dispersion mechanism 300 and the bottom wall of the circulation tank 100.

[0076] The lifting adjustment member 51 can be configured as a lifting cylinder, which is in transmission connection with the rotating shaft 71, thereby realizing the automatic lifting function of the dispersion mechanism 300. Of course, in some embodiments, the lifting adjustment member 51 can also be configured as a mechanical adjustment member, such as but not limited to a spiral structure, a latch structure, etc., thereby realizing the manual lifting function of the dispersion mechanism 300, saving costs.

[0077] In some embodiments, the circulating pulping device 1000 includes a guide rod 52. The guide rod 52 is connected to the circulation tank 100. The guide rod 52 is used to limit the lifting and lowering of the dispersion mechanism 300 in the axial direction X of the circulating pulping device 1000, so that the guide rod 52 can move the dispersion mechanism 300 along the set trajectory to prevent deviation, thereby improving the uniform dispersion of the slurry by the dispersion mechanism 300. The guide rod 52 can be configured as a telescopic rod or a non-telescopic rod. Specifically, the guide rod 52 is connected to the tank cover 120, thereby facilitating the assembly of the guide rod 52. Of course, the guide rod 52 can also be connected to the tank body 110. In this embodiment, at least one of the rotating shaft 41 and the support rod 45 can serve as the guide rod 52. Of course, in some embodiments, the guide rod 52 can be set independently of the rotating shaft 41 and the support rod 45.

[0078] In some embodiments, the circulating pulping apparatus 1000 further includes a water level detector 53 for detecting the water level of the slurry in the circulation tank 100. The lifting and lowering adjustment member 51 is used to adjust the operating height of the dispersion mechanism 300 in the circulation tank 100 according to the current water level. Thus, based on the detection of the water level of the slurry in the circulation tank 100, the operating height of the dispersion mechanism 300 in the circulation tank 100 can be more accurately adjusted, thereby improving the dispersion effect and uniform mixing effect of the dispersion mechanism 300.

[0079] The water level detection member 53 may include but is not limited to a radar water level gauge, an ultrasonic water level gauge, a pressure water level gauge, etc. The water level detection member 53 is provided on the tank cover 120 to prevent the slurry from contaminating or damaging the water level detection member 53 and to facilitate assembly of the water level detection member 53 .

[0080] In some embodiments, the circulating pulping equipment 1000 further includes a heat sink 55. The heat sink 55 is disposed in the circulation tank 100. Thus, since the rotor 10 of the dispersion mechanism 300 generates a large amount of heat by friction with the slurry during high rotation, the embodiment of the present invention provides a heat sink 55 in the circulation tank 100, thereby being able to conduct the heat of the slurry to the outside of the circulation tank 100, thereby improving the heat dissipation efficiency of the slurry and improving the quality of the slurry. The heat sink 55 is connected to the tank cover 120, thereby facilitating the assembly of the heat sink 55 and the circulation tank 100, as well as facilitating operations such as cleaning and maintenance of the circulation tank 100. Of course, in some embodiments, the heat sink 55 can also be connected to the tank body 110, which is not specifically limited in the embodiment of the present invention.

[0081] Illustratively, in this embodiment, a plurality of heat sinks 55 are provided. A plurality of heat sinks 55 are arranged along the circumferential direction Z of the circulation tank 100, thereby improving the heat dissipation effect and heat dissipation efficiency. The heat sink 55 is configured as a rod-shaped structure with a heat-conducting effect. In some embodiments, the side walls of the heat sink 55 are provided with heat dissipation fins, thereby increasing the contact area between the heat sink 55 and the slurry, thereby improving the heat dissipation effect. A cooling channel may also be provided in the heat sink 55, and a heat dissipation medium may be introduced into the cooling channel, such as but not limited to water, gas or phase change material. The heat sink 55 and the guide rod 52 are independently provided and spaced apart. Of course, in some embodiments, the guide rod 52 may also be configured as a heat sink 55, thereby saving the heat sink 55 from occupying the internal space of the circulation tank 100, improving space utilization and saving costs.

[0082] Please also refer to Figure 3 、 Figure 5 and Figure 6 , Figure 6 yes Figure 2 A cross-sectional view of the dispersion structure of the circulating pulping apparatus 1000 along line BB is shown. In the radial direction Y of the circulating pulping apparatus 1000, the outermost first stator ring 32 is located outside all first rotor rings 12; the outermost second stator ring 33 is located outside all second rotor rings 13. Thus, during high-speed rotation of the rotor 100, guided by the first and second stator rings 32 and 33, the slurry can form a specific flow path within the circulation tank 100, better controlling the slurry flow and ensuring that the slurry is subjected to stronger hydraulic shear, centrifugal extrusion, high-speed cutting, impact, and grinding, thereby enhancing the dispersion and mixing effects of the dispersion mechanism 300.

[0083] Please refer again Figure 4Of course, in some embodiments, in the radial direction Y of the circulating pulping apparatus 1000, the outermost first rotor ring 12 is located outside all first stator rings 32; and the outermost second rotor ring 13 is located outside all second stator rings 33. Thus, because the outermost first rotor ring 12 is located outside all first stator rings 32 and the outermost second rotor ring 13 is located outside all second stator rings 33, the slurry flow rate ejected from the outermost stator slots 331 is increased, improving the material suction and discharge capabilities of the dispersion mechanism 300, promoting slurry mixing and dispersion, and improving the dispersion efficiency of the dispersion mechanism 300, thereby better achieving the slurry's reciprocating motion within the circulation tank 100. Multiple first stator rings 32 and / or first rotor rings 12 are provided, and multiple second stator rings 33 and / or second rotor rings 13 are provided. In the radial direction Y of the circulating pulping apparatus 1000, the first rotor rings 12 and the first stator rings 32 are arranged alternately, and the second rotor rings 13 and the second stator rings 33 are arranged alternately, thereby improving the shear dispersion effect of the dispersion mechanism 300 on the slurry. Specifically, there are two first stator rings 32 and the second stator rings 33, and three first rotor rings 12 and the second rotor rings 13 are provided. Each first stator ring 32 is located between two adjacent first rotor rings 12, and the second rotor rings 13 and the second stator rings 33 are arranged alternately.

[0084] In some embodiments, the outermost first rotor ring 12 is located inside the outermost first stator ring 32; and the outermost second rotor ring 13 is located inside the outermost second stator ring 33. Therefore, the positioning of the outermost first rotor ring 12 outside the outermost first stator ring 32 and the outermost second rotor ring 13 outside the outermost second stator ring 33 can reduce mechanical vibration, reduce airflow interference, and balance the dynamic load of the rotor 10 during mechanical operation, thereby reducing vibration and noise caused by imbalance and, in turn, reducing noise. This in turn reduces the noise generated by the dispersion mechanism 300 during slurry dispersion.

[0085] It should be noted that the number of the above-mentioned first rotor rings 12, the number of the second rotor rings 13, the number of the first stator rings 32 and the number of the second stator rings 33 are only used for illustration. The number of the first rotor rings 12, the number of the second rotor rings 13, the number of the first stator rings 32 and the number of the second stator rings 33 can be set according to the size parameters of the circulation tank 100, the volume and viscosity of the slurry to be dispersed and other factors, and the embodiments of the present utility model do not make specific limitations.

[0086] The first stator ring 32 and / or the first rotor ring 12 are provided in plurality, and the thickness of the plurality of first rotor rings 12 and / or the plurality of first stator rings 32 in the radial direction Y of the circulating pulping equipment 1000 gradually increases from the inside to the outside; the second stator ring 33 and / or the second rotor ring 13 are provided in plurality, and the thickness of the plurality of second rotor rings 13 and / or the plurality of second stator rings 33 in the radial direction Y of the circulating pulping equipment 1000 gradually increases from the inside to the outside. Therefore, on the one hand, since the centrifugal force generated by the rotor 10 on the slurry gradually increases from the inside to the outside during high-speed rotation, the present application sets the thickness of multiple first stator rings 32 and the thickness of multiple first rotor rings 12 to gradually increase from the inside to the outside, and sets the thickness of multiple second stator rings 33 and the thickness of multiple second rotor rings 13 to gradually increase from the inside to the outside, so that the structural strength of the first stator ring 32 and the first rotor ring 12 is gradually increased from the inside to the outside, and the structural strength of the second stator ring 33 and the second rotor ring 13 is also gradually increased from the inside to the outside, thereby preventing the outer first stator ring 32, the outer first rotor ring 12, the outer second stator ring 33 and the outer second rotor ring 13 from deformation, thereby improving the shearing effect and dispersion effect of the dispersion mechanism 300.

[0087] The first rotor ring 12 and the second rotor ring 13 are each provided with a plurality of rotor slots 131 along the circumferential direction Z of the circulating pulping apparatus 1000. The first stator ring 32 and the second stator ring 33 are each provided with a plurality of stator slots 331 along the circumferential direction Z of the circulating pulping apparatus 1000. The slotting direction of the stator slots 331 is opposite to the slotting direction of the rotor slots 131. Specifically, when the slotting direction of the stator slots 331 is opposite to the rotation direction of the rotor 10, while the slotting direction of the rotor slots 131 is the same as the rotation direction of the rotor 10, the flow path of the slurry within the stator slots 331 will change, causing the rotor 10 to generate stronger shear force and turbulence, thereby facilitating the dispersion and mixing of the various materials in the slurry. On the other hand, when the slotting direction of the stator slots 331 is opposite to the slotting direction of the rotor slots 131, the kinetic energy loss of the slurry when passing through the stator 30 and the rotor 10 is reduced.

[0088] Of course, in some embodiments, the slotting direction of the stator slot 331 and the slotting direction of the rotor slot 131 can also be the same, so as to facilitate the processing of the stator slot 331 and the rotor slot 131, and better match the rotational coordination movement of the rotor 10 and the stator to form a more effective shear force, thereby promoting the dispersion and mixing of the particles.

[0089] Please also refer to Figure 3 、 Figure 4 and Figure 7 , Figure 7 yes Figure 1A cross-sectional view of a third embodiment of the dispersion structure of the circulating pulping equipment 1000 in FIG. In some embodiments, the dispersion mechanism 300 further includes two impellers 20, one of which is located within the innermost first rotor ring 12, and the other impeller 20 is located within the innermost second rotor ring 13. Thus, the impeller 20 can generate strong shearing and impact forces during high-speed rotation to create a turbulent zone in the slurry, allowing the powder particles to be quickly dispersed into the liquid material under the strong shearing and impact forces, and allowing the slurry to be fully circulated and tumbled within the circulation tank 100, thereby improving the mixing and dispersion effects of the slurry. For example, in this embodiment, the impeller 20 is disposed on the rotor base 11. The impeller 20 and the rotor base 11 are configured as an integrated structure. Of course, in some embodiments, the impeller 20 and the rotor base 11 can also be disposed independently of each other and fixedly connected by a rotating shaft 41, thereby facilitating operations such as replacement, maintenance, and cleaning of the various components of the dispersion mechanism 300.

[0090] In some embodiments, the radial dimension of the impeller 20 at the intake end is smaller than the radial dimension of the impeller 20 at the discharge end. Specifically, the impeller 20 is configured as a conical structure. Along the radial direction Y of the circulating pulping apparatus 1000, the radial dimension of the impeller 20 gradually increases from the intake end toward the discharge end. This allows slurry to flow from the intake end of the impeller 20 to the discharge end of the impeller 20. Since the radial dimension of the impeller 20 gradually increases from the intake end toward the discharge end, the slurry flow rate gradually increases while the pressure gradually decreases, reducing capacity loss. Furthermore, the conical shape of the impeller 20 more effectively converts the kinetic energy of the fluid into pressure energy, thereby improving the intake and discharge capabilities of the dispersion mechanism 300. Furthermore, the conical shape of the impeller 20 further stabilizes fluid flow, reduces eddies and turbulence, and thus reduces mechanical vibration and fluid dynamic noise. Of course, in some embodiments, the radial dimension of the impeller 20 at the intake end is equal to the radial dimension of the impeller 20 at the discharge end. For example, the impeller 20 may also be configured as a columnar structure.

[0091] Specifically, each impeller 20 includes a base 21 and a plurality of blades 22, and the plurality of blades 22 are spaced apart on the side wall of the base 21 along the radial direction Y of the circulating pulping equipment 1000. The base 21 can be configured as a truncated cone or a cylinder, and the blades 22 can be configured as straight blades, twisted blades, or cylindrical blades. For example, in this embodiment, the base 21 is configured as a truncated cone, and the blades are configured as twisted blades. Specifically, the cross-section of the base 21 along the radial direction Y of the circulating pulping equipment 1000 gradually increases from the suction end toward the discharge end. The side wall of the base 21 is configured as a curved surface. The meridian flow line of the base 21 from the suction end to the discharge end is a curve that bends inward relative to the central axis of the base 21. The meridian flow line is roughly in the shape of a circular arc. Therefore, on the one hand, the twisted blades can reduce the impact of the blades 22 in the feed section and extend the service life; on the other hand, the twisted blades can conform to the liquid flow law at different diameters of the impeller 20, and are more consistent with the flow direction and flow velocity of the slurry, so that the turbulence and impact on the slurry between the blades 22 in the flow channel are relatively small, thereby improving the suction and discharge capacity of the dispersion mechanism 300 and promoting the circulation capacity of the slurry in the circulation tank 100.

[0092] Of course, in some embodiments, the base 21 is configured as a cylinder, and the blades 22 are configured as cylindrical blades. Specifically, the cross-section of the base 21 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 21 is configured as a cylindrical surface. The meridian flow line of the base 21 from the suction end to the discharge end is parallel to the central axis of the base 21. Thus, on the one hand, the load on the blades 22 is reduced and the cavitation resistance is improved; on the other hand, the processing and manufacturing of the impeller 20 is facilitated, cleaning is facilitated, and the operation stability of the impeller 20 is improved. For another example, the base 21 can also be configured as a truncated cone, and the blades 22 can be configured as cylindrical blades.

[0093] It should be noted that a twisted blade refers to a blade that gradually twists from bottom to top along its own height direction. In this embodiment, a twisted blade refers to a structure in which the surface of the blade 22 is bidirectionally curved. A twisted blade is also referred to as a spatially curved surface or a double-curved blade 22. A cylindrical blade refers to a structure in which the surface of the blade 22 is unidirectionally curved. A cylindrical blade is also referred to as a single-curvature blade or an oblique blade.

[0094] In other embodiments, the blades 22 may also be, but are not limited to, linear blades. A linear blade refers to a structure in which the blade's shape and mounting angle remain constant throughout the blade height range, and the line connecting the centroids of the cross sections aligns with the radial direction of the impeller 20. Specifically, within a projection plane perpendicular to the central axis of the base 21, the blades 22 extend from the inside outward in the radial direction of the impeller 20. For example, in some embodiments, within a projection plane parallel to the central axis of the base 21, the extension direction of the linear blades may be parallel to the central axis of the base 21. In other embodiments, within a projection plane parallel to the central axis of the base 21, the extension direction of the linear blades may intersect with the central axis of the base 21. In other words, within a projection plane parallel to the central axis of the base 21, the extension direction of the linear blades may be arranged at an angle to the central axis of the base 21. The blades 22 may also employ other blade structures that exhibit a centrifugal effect, which are not specifically limited in the present embodiments.

[0095] The dispersion mechanism 300 further includes two impellers 20 , wherein one impeller 20 is located in the innermost first rotor ring 12 , and the other impeller 20 is located in the innermost second rotor ring 13 .

[0096] Please also refer to Figure 3 、 Figure 4 and Figure 8 , Figure 8 yes Figure 1 A cross-sectional view of a fourth embodiment of the dispersion structure of the circulating pulping equipment 1000 in FIG. A guide plate 37 is provided on the stator base 31. Thus, on the one hand, the guide plate 37 can guide the slurry discharged from the dispersion mechanism 300, so as to achieve better up and down flipping of the slurry in the circulation tank 100, thereby improving the circulation capacity of the slurry and improving the dispersion effect of the dispersion mechanism 300; on the other hand, the guide plate 37 can also guide the slurry on the surface of the stator base 31 facing away from the rotor base 11, thereby avoiding the accumulation of slurry in the dead zone and improving the uniformity of slurry mixing. Of course, in some other embodiments, the dispersion mechanism 300 can also omit the guide plate 37. In this embodiment, the two stator bases 31 are each provided with a guide plate 37.

[0097] Of course, in some embodiments, a guide plate 37 is provided on the stator base 31 at the bottom of the rotor base 11. It is understood that because the curved plate has an arc-shaped surface that bulges outward relative to the central axis of the rotating shaft 41, the slurry is compressed as it flows through the curved surface. After the slurry passes through the top of the curved surface, a negative pressure zone is formed, which accelerates the slurry, thereby increasing the speed of the slurry. Thus, the provision of the guide plate 37 can increase the flow rate of the slurry, improve the slurry circulation capacity, and enhance the dispersion effect of the dispersion mechanism 300. Therefore, since the slurry is easily deposited at the bottom of the circulation tank 100 under the action of gravity, the provision of the guide plate 37 on the stator base 31 at the bottom of the dispersion mechanism 300 promotes the shear dispersion efficiency of the slurry at the second stator ring 33 and the second rotor ring 13 at the bottom of the dispersion mechanism 300, thereby reducing the deposition of the slurry, promoting the upward and downward circulation capacity of the slurry, and improving the uniformity of the slurry.

[0098] The guide plate 37 is integrally formed with the stator base 31. The guide plate 37 and stator base 31 can be connected in a circular arc or at a sharp angle. Of course, the guide plate 37 and stator base 31 can be independently provided and fixedly connected. For example, the guide plate 37 and stator base 31 can be fixedly connected by means of a clamping connection, adhesive bonding, welding, or screw connection.

[0099] Please also refer to Figure 1 and Figure 9 , Figure 9 : is a cross-sectional view of the circulating pulping device 1000 provided in the second embodiment of the present invention. In some embodiments, the circulating pulping device 1000 further includes a first stirring blade 61 and / or a second stirring blade 62, and the first stirring blade 61 and the second stirring blade 62 are both arranged on the rotating shaft 41 and are respectively located at the top and bottom of the dispersion mechanism 300. Thus, the arrangement of the first stirring blade 61 and / or the second stirring blade 62 can avoid the accumulation and agglomeration of the slurry at the top and bottom, and at the same time, the arrangement of the first stirring blade 61 and / or the second stirring blade 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.

[0100] In this embodiment, a plurality of first stirring blades 61 and a plurality of second stirring blades 62 are provided. The first stirring blades 61 and the second stirring blades 62 are each tilted relative to the central axis of the rotating shaft 41, and the tilt direction of the first stirring blade 61 is opposite to the tilt direction of the second stirring blade 62. Thus, the plurality of first stirring blades 61 can push the slurry downward to the first feed hole 303 during rotation, and the plurality of second stirring blades 62 can push the slurry upward to the second feed hole 304 during rotation, thereby promoting good up-and-down turbulence of the slurry fluid in the circulation tank 100, thereby improving the circulation capacity of the dispersion device and improving the uniformity of dispersion and mixing of the slurry fluid.

[0101] Please also refer to Figure 1 and Figure 10 , Figure 10 It is a cross-sectional view of the circulating pulping equipment 1000 provided in the third embodiment of the present invention. In some embodiments, the circulating pulping equipment 1000 further includes a wall scraping paddle 70. The wall scraping paddle 70 includes a rotating shaft 71 and a wall scraping blade 72. The rotating shaft 71 is rotatably connected to the circulation tank 100 and is independently arranged with the rotating shaft 41. The wall scraping blade 72 is rotatably connected to the rotating shaft 71 and is arranged close to the inner wall of the circulation tank 100. As a result, the wall scraping paddle 70 can not only provide stirring centripetal force for the slurry to be stirred, but also can scrape off the slurry to be stirred that adheres to the inner wall of the circulation tank 100, thereby improving the stirring effect. Specifically, the wall scraping paddle 70 is configured as a frame structure. The wall scraping blade 72 includes a plurality of scraping arms 721, and the plurality of scraping arms 721 are arranged along the circumferential direction Z of the rotating shaft 71. Each scraping arm 721 includes a first arm 7211 and a second arm 7212. One end of the first arm 7211 is fixedly connected to the rotating shaft 71 , and the other end of the first arm 7211 is fixedly connected to the second arm 7212 . The second arm 7212 is arranged close to the inner wall of the circulation tank 100 .

[0102] In some embodiments, the scraping blade 72 further includes a scraping portion 722. The scraping portion 722 is disposed on the first arm 7211 close to the bottom wall of the circulation tank 100 and / or the second arm 7212 close to the inner 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 on 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.

[0103] The free end of the second arm 7212 can extend to the vicinity of the dispersion mechanism 300, thereby better scraping away slurry adhering to the inner wall of the circulation tank 100. Alternatively, the free end of the second arm 7212 can be positioned below the dispersion mechanism 300 to prevent interference between the scraping paddle 70 and other components within the circulation tank 100. The length of the second arm 7212 can be designed based on practical needs and is not specifically limited in this embodiment of the present invention.

[0104] In some embodiments, the scraper paddle 70 further includes an auxiliary blade 73. The auxiliary blade 73 is disposed on the rotating shaft 71 to prevent slurry sedimentation and improve the mixing quality of the slurry. Furthermore, the auxiliary blade 73 can be used to push the slurry at the bottom of the circulation tank 100 toward the second feed inlet of the dispersion mechanism 300, thereby improving the material suction capacity of the dispersion mechanism 300 and promoting the reciprocating circulation of the slurry within the circulation tank 100. The auxiliary blade 73 is arranged to avoid the dispersion mechanism 300.

[0105] It should be noted that the first stirring blade 61 and the second stirring blade 62 in the circulating pulping equipment 1000 in the second embodiment and the scraping paddle 70 in the circulating pulping equipment 1000 in the third embodiment are applicable to the circulating pulping equipment 1000 in the first embodiment and will not be repeated here.

[0106] 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) for storing slurry; A dispersion mechanism (300) is arranged in the middle of the circulation tank (100), and the dispersion mechanism (300) is provided with a first dispersion chamber (301), a second dispersion chamber (302), a first feed hole (303) and a second feed hole (304); a first stator ring (32) and a first rotor ring (12) rotatably matched with the first stator ring (32) are provided in the first dispersion chamber (301); a second stator ring (33) and a second rotor ring (13) rotatably matched with the second stator ring (33) are provided in the second dispersion chamber (302); the first feed hole (303) is arranged at the top of the dispersion mechanism (300) and is communicated with the first dispersion chamber (301); the second feed hole (304) is arranged at the bottom of the dispersion mechanism (300) and is communicated with the second dispersion chamber (302).

2. The circulating pulping equipment (1000) according to claim 1, characterized in that: The dispersion mechanism (300) comprises at least one stator base (31) and a rotor base (11); the first stator ring (32) and the second stator ring (33) are connected to all the stator bases (31) to form a stator (30); the first rotor ring (12) and the second rotor ring (13) are connected to form a rotor (10), and are respectively located at two end surfaces of the rotor base (11) in the axial direction (X) of the circulating pulping equipment (1000); or, The dispersion mechanism (300) includes a stator base (31) and two rotor bases (11); the first stator ring (32) and the second stator ring (33) are connected to form a stator (30), and are respectively located at the two end surfaces of the stator base (31) in the axial direction (X) of the circulating pulping equipment (1000); the first rotor ring (12) is connected to one of the rotor bases (11) to form a first rotor (15); and the second rotor ring (13) is connected to the other of the rotor bases (11) to form a second rotor (16); or, The dispersion mechanism (300) comprises two stator bases (31) and a rotor base (11); the first stator ring (32) is connected to one of the stator bases (31) to form a first stator (35); the second stator ring (33) is connected to the other of the stator bases (31) to form a second stator (36); the first rotor ring (12) and the second rotor ring (13) are connected to form a rotor (10), and are respectively located at two end surfaces of the rotor base (11) in the axial direction (X) of the circulating pulping equipment (1000); or, The dispersion mechanism (300) includes two stator bases (31) and two rotor bases (11), the first stator ring (32) is connected to one of the stator bases (31) to form a first stator (35), the second stator ring (33) is connected to the other of the stator bases (31) to form a second stator (36), the first rotor ring (12) is connected to one of the rotor bases (11) to form a first rotor (15), and the second rotor ring (13) is connected to the other of the rotor bases (11) to form a second rotor (16).

3. The circulating pulping equipment (1000) according to claim 1, characterized in that: The first dispersion chamber (301) and the second dispersion chamber (302) are separated and arranged in the axial direction (X) of the circulating pulping equipment (1000); or, the dispersion mechanism (300) is further provided with at least one connecting hole (305), and the first dispersion chamber (301) and the second dispersion chamber (302) are connected through at least one connecting hole (305).

4. The circulating pulping equipment (1000) according to claim 1, characterized in that: The area of ​​the first feed hole (303) is equal to the area of ​​the second feed hole (304); or, the area of ​​the first feed hole (303) is smaller than the area of ​​the second feed hole (304).

5. The circulating pulping equipment (1000) according to claim 1, characterized in that: The first stator ring (32) and the second stator ring (33) are mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism (300), and the first rotor ring (12) and the second rotor ring (13) are mirror-symmetrical with respect to a symmetry plane perpendicular to the central axis of the dispersion mechanism (300).

6. The circulating pulping equipment (1000) according to claim 1, characterized in that: The circulating pulping equipment (1000) further comprises a lifting and adjusting member (51), wherein the lifting and adjusting member (51) is used to adjust the working height of the dispersion mechanism (300) in the circulation tank (100).

7. The circulating pulping device (1000) according to claim 6, characterized in that: The circulating pulping equipment (1000) comprises a guide rod (52), and the guide rod (52) is used to limit the dispersion mechanism (300) to be raised and lowered in the axial direction (X) of the circulating pulping equipment (1000).

8. The circulating pulping device (1000) according to claim 6, characterized in that: The circulating pulping equipment (1000) further comprises a water level detection member (53), the water level detection member (53) being used to detect the water level of the pulp in the circulating tank (100), and the lifting adjustment member (51) being used to adjust the working height of the dispersion mechanism (300) in the circulating tank (100) according to the current water level.

9. The circulating pulping device (1000) according to claim 2, characterized in that: The dispersion mechanism (300) further includes a rotating shaft (41) connected to the rotor base (11); the first feed hole (303) and the second feed hole (304) are both arranged on the stator base (31); the rotating shaft (41) is passed through the first feed hole (303) and / or the second feed hole (304) and is clearance-matched with the first feed hole (303) and / or the second feed hole (304); or the first feed hole (303) and the second feed hole (304) are both arranged on the rotor base (11); a mounting hole (1101) is further provided on the rotor base (11); the mounting hole (1101) is rotationally matched with the rotating shaft (41) and is spaced apart from the first feed hole (303) and the second feed hole (304) in the radial direction (Y) of the circulating pulping equipment (1000).

10. The circulating pulping device (1000) according to claim 9, characterized in that: The circulating pulping device (1000) further includes a first stirring blade (61) and / or a second stirring blade (62), wherein the first stirring blade (61) and the second stirring blade (62) are both arranged on the rotating shaft (41) and are respectively located at the top and bottom of the dispersion mechanism (300).

11. The circulating pulping device (1000) according to claim 9, characterized in that: The circulating pulping equipment (1000) further includes a scraping paddle (70), which includes a rotating shaft (71) and a scraping blade (72). The rotating shaft (71) is rotatably connected to the circulating tank (100) and is independently arranged from the rotating shaft (41). The scraping blade (72) is rotatably connected to the rotating shaft (71) and is arranged close to the inner wall of the circulating tank (100).

12. The circulating pulping device (1000) according to claim 1, characterized in that: In the radial direction (Y) of the circulating pulping device (1000), the outermost first rotor ring (12) is located outside all the first stator rings (32); and the outermost second rotor ring (13) is located outside all the second stator rings (33).

13. The circulating pulping device (1000) according to claim 12, characterized in that: The first stator ring (32) and / or the first rotor ring (12) are provided in plurality, and the thickness of the plurality of first rotor rings (12) and / or the plurality of first stator rings (32) in the radial direction (Y) of the circulating pulping equipment (1000) gradually increases from the inside to the outside; the second stator ring (33) and / or the second rotor ring (13) are provided in plurality, and the thickness of the plurality of second rotor rings (13) and / or the plurality of second stator rings (33) in the radial direction (Y) of the circulating pulping equipment (1000) gradually increases from the inside to the outside.

14. The circulating pulping device (1000) according to claim 12, characterized in that: The first rotor ring (12) and the second rotor ring (13) are each provided with a plurality of rotor slots (131) along the circumferential direction (Z) of the circulating pulping device (1000); the first stator ring (32) and the second stator ring (33) are each provided with a plurality of stator slots (331) along the circumferential direction (Z) of the circulating pulping device (1000); and the slotting direction of the stator slots (331) is opposite to the slotting direction of the rotor slots (131).

15. The circulating pulping device (1000) according to claim 12, characterized in that: The dispersion mechanism (300) further comprises two impellers (20), one of the impellers (20) being located in the innermost circle of the first rotor ring (12), and the other impeller (20) being located in the innermost circle of the second rotor ring (13).

16. The circulating pulping device (1000) according to claim 15, characterized in that: Each impeller (20) includes a base (21) and a plurality of blades (22), wherein the plurality of blades (22) are arranged at intervals on the outer side wall of the base (21) along the radial direction (Y) of the circulating pulping equipment (1000).

17. The circulating pulping device (1000) according to claim 2, characterized in that: The stator base (31) is provided in two numbers. In the axial direction (X) of the circulating pulping equipment (1000), the two stator bases (31) are located on both sides of the rotor base (11). The outer edge of at least one of the stator bases (31) is provided with a guide plate (37). The guide plate (37) is tilted outward relative to the stator base (31) toward a side away from the rotor base (11). The guide plate (37) is configured as an arc-shaped plate.

18. The circulating pulping device (1000) according to claim 1, characterized in that: The circulating pulping equipment (1000) further comprises a heat sink (55), and the heat sink (55) is arranged in the circulation tank (100).

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