Pulping equipment

Abstract

The utility model provides pulping equipment. The pulping equipment comprises a circulating tank, a dispersing structure and a heat dissipation structure. An accommodating cavity for accommodating slurry is formed in the circulating tank. The dispersing structure is located in the containing cavity and arranged at the bottom of the circulating tank, and the dispersing structure is used for dispersing the slurry and enabling the slurry to circularly flow in the circulating tank. The heat dissipation structure comprises a first heat dissipation piece and a second heat dissipation piece, the first heat dissipation piece is connected to the circulation tank and extends in the containing cavity in the first direction, the second heat dissipation piece is connected to the first heat dissipation piece and extends in the containing cavity in the second direction, and the first direction intersects with the second direction. Thus, the contact area of the first heat dissipation piece and the second heat dissipation piece can be increased, the heat dissipation structure can dissipate heat of slurry close to the center shaft of the circulation tank in time, the situation that the temperature of the slurry is too high due to heat accumulation in the slurry is avoided, the slurry is jointly dissipated through the heat dissipation structure and the circulation tank, and the temperature consistency of the slurry is effectively improved; and the quality of the slurry is further improved.

Description

Technical Field

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

[0002] In the related art, when pulping equipment is preparing pulp, the pulp will heat up. Traditional pulping equipment has poor cooling effect on the pulp, so the heat of the pulp cannot be discharged in time, resulting in the pulp temperature being too high and the quality of the pulp being reduced. Utility Model Content

[0003] The present application provides a pulping device to solve the problem that the pulping device has a poor cooling effect on the pulp.

[0004] The present application provides a pulping device, which includes a circulation tank, a dispersion structure, and a heat dissipation structure. A storage chamber for accommodating slurry is provided in the circulation tank. The dispersion structure is located in the storage chamber and is arranged at the bottom of the circulation tank. The dispersion structure is used to disperse the slurry and circulate the slurry in the circulation tank. The heat dissipation structure includes a first heat dissipation member and a second heat dissipation member, the first heat dissipation member is connected to the circulation tank and extends in a first direction in the storage chamber, the second heat dissipation member is connected to the first heat dissipation member and extends in a second direction in the storage chamber, and the first direction and the second direction intersect.

[0005] In some embodiments, the heat dissipation structure is provided in plurality, and the plurality of heat dissipation structures are arranged at intervals along the circumferential direction of the circulation tank.

[0006] In some embodiments, the second heat dissipation member is provided in plurality, and the plurality of second heat dissipation members are arranged at intervals along the first direction.

[0007] In some embodiments, the distance between two adjacent second heat dissipation members becomes smaller or equal from the top toward the bottom of the circulation tank, and / or the length of the second heat dissipation member near the bottom of the circulation tank is greater than or equal to the length of the second heat dissipation member near the top of the circulation tank.

[0008] In some embodiments, a guide hole is formed on the second heat dissipation member.

[0009] In some embodiments, the pulping equipment also includes a stirring paddle, which is used to stir the slurry. The stirring paddle includes a rotating shaft and a plurality of stirring blades arranged on the rotating shaft. The rotating shaft extends along the axial direction of the circulation tank in the accommodating cavity. The stirring blades are located in the accommodating cavity. The extension direction of the stirring blades intersects with the extension direction of the rotating shaft. The plurality of stirring blades are arranged at intervals along the axial direction of the rotating shaft.

[0010] In some embodiments, the plurality of stirring blades are arranged in a spiral shape along the axial direction of the rotating shaft, or the arrangement direction of the plurality of stirring blades is parallel to the axial direction of the rotating shaft.

[0011] In some embodiments, the plurality of stirring blades and the plurality of the second heat dissipation members are arranged in a staggered manner.

[0012] In some embodiments, the width direction of the cross section of the stirring blade is tilted relative to the orthographic projection of the axial direction of the rotating shaft on the plane where the cross section of the stirring blade is located, and / or the width direction of the cross section of the second heat sink is tilted relative to the orthographic projection of the first direction on the plane where the cross section of the second heat sink is located.

[0013] In some embodiments, an inclination direction of the stirring blade relative to the axial direction of the rotating shaft is the same as an inclination direction of the second heat dissipating element relative to the first direction.

[0014] In some embodiments, the difference between the distance between the end of the stirring blade away from the rotating shaft and the rotating shaft and the distance between the end of the second heat sink away from the first heat sink and the rotating shaft is greater than the distance between the second heat sink and the adjacent stirring blade.

[0015] In some embodiments, a heat conduction channel is provided in the first heat dissipation element, a heat conduction medium is provided in the heat conduction channel, and the heat conduction medium circulates in the heat conduction channel.

[0016] In some embodiments, a branch channel is provided in the second heat dissipation member, and the branch channel is connected to the heat conduction channel.

[0017] In the pulping equipment provided in the present application, on the one hand, the pulping equipment dissipates heat based on the first heat sink and the second heat sink, and the extension directions of the first heat sink and the second heat sink are set at an angle, which can increase the contact area of ​​the first heat sink and the second heat sink, and improve the heat dissipation efficiency of the heat dissipation structure for the slurry. The heat dissipation structure extends into the interior of the accommodating cavity, and can dissipate heat in time for the slurry close to the central axis of the circulation tank, avoiding heat accumulation inside the slurry resulting in excessively high slurry temperature. The heat dissipation of the slurry by the heat dissipation structure and the circulation tank effectively improves the temperature consistency of the slurry, thereby improving the quality of the slurry; on the other hand, compared with the pulping equipment in which the dispersion structure is set outside the circulation tank and connected to the circulation tank through a connecting pipe, the pulping equipment in the embodiment of the present application is based on the dispersion structure set in the accommodating cavity, and the slurry is dispersed and circulated inside the circulation tank through the dispersion structure, which can simplify the structure of the pulping equipment and make the structure of the pulping equipment more compact. There is no need to set additional pipelines, which greatly reduces the difficulty of cleaning the pulping equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0019] Figure 1 It is a cross-sectional view of the pulping equipment provided in the embodiment of the present application.

[0020] Figure 2 This is a schematic structural diagram of the heat dissipation structure provided in some embodiments of the present application.

[0021] Figure 3 This is a partial structural diagram of the heat dissipation structure provided in some embodiments of the present application.

[0022] Figure 4 is a cross-sectional view of a heat dissipation structure provided in some embodiments of the present application.

[0023] Figure 5 This is a partial cross-sectional view of the heat dissipation structure provided in some embodiments of the present application.

[0024] Figure 6 This is a partial cross-sectional view of the heat dissipation structure provided in some embodiments of the present application.

[0025] Figure 7 It is a side view of the heat dissipation structure provided in an embodiment of the present application.

[0026] Figure 8 This is a schematic diagram of the partial structure of the heat dissipation structure and stirring paddle provided in some embodiments of the present application.

[0027] Figure 9 It is a partial cross-sectional view of a stirring paddle provided in some embodiments of the present application.

[0028] Figure 10 It is a cross-sectional view of the dispersed structure provided in the embodiment of the present application.

[0029] Figure 11 It is a structural schematic diagram of the stator and rotor provided in an embodiment of the present application.

[0030] Explanation of main reference numerals: pulping equipment 100; circulation tank 10; accommodating chamber 101; top 102; bottom 103; top cover 11; side wall 12; bottom wall 13; discharge port 131; central axis C1; dispersion structure 20; inlet 201; outlet 202; stator 21; stator disk 211; stator retaining ring 212; stator slot 2121; rotor 22; rotor disk 221; rotor retaining ring 222; rotor slot 2221; pusher blade 223; mounting seat 224; first seat body 2241; second seat body 2242; connecting member 2243; communicating hole 2244; driving shaft 23; driver 24; drainage cover 25; heat dissipation structure 30; first heat dissipation member 311; heat conduction Channel 3111; second heat dissipation element 312; guide hole 3121; inclined surface 3122; guide structure 3123; first heat dissipation section 3124; second heat dissipation section 3125; first segment 321; second segment 322; third segment 323; fin 324; temperature control element 325; protective sleeve 326; first tube portion 331; first flow channel 3311; second tube portion 332; second flow channel 3321; stirring paddle 40; rotating shaft 41; guide groove 411; guide sleeve 412; cooling flow channel 413; stirring blade 42; first stirring section 421; second stirring section 422; scraping blade 43; scraping element 44; heat dissipation jacket 50; first direction F1; second direction F2.

[0031] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments in this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] References herein to "embodiments" or "implementations" mean that a particular feature, structure, or characteristic described in connection with the embodiments or implementations may be included in at least one embodiment of the present application. The appearance of such phrases in various places in the specification does not necessarily refer to the same embodiment, nor do they constitute independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] It should be noted that the terms in the specification and claims of this application and the above-mentioned drawings are intended only to describe specific embodiments and are not intended to limit this application. The terms "first," "second," and so on in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in this application refers to any and all possible combinations of one or more of the associated listed items, including and including these combinations.

[0035] See also Figure 1 , Figure 1 It is a cross-sectional view of the pulping equipment 100 provided in an embodiment of the present application. The pulping equipment 100 includes a circulation tank 10, a dispersion structure 20 and a heat dissipation structure 30. A accommodating chamber 101 for accommodating slurry is provided in the circulation tank 10. The circulation tank 10 includes a top 102 and a bottom 103 arranged opposite to each other along the central axis C1. After the pulping equipment 100 is installed, the top 102 of the circulation tank 10 is located on the side of the bottom 103 away from the ground. The dispersion structure 20 is located in the accommodating chamber 101 and is arranged at the bottom 103 of the circulation tank 10. The dispersion structure 20 is used to disperse the slurry and circulate the slurry in the circulation tank 10. The heat dissipation structure 30 includes a first heat dissipation member 311 and a second heat dissipation member 312. The first heat dissipation member 311 is connected to the circulation tank 10 and extends along the first direction F1 in the accommodating chamber 101. The second heat dissipation member 312 is connected to the first heat dissipation member 311 and extends along the second direction F2 in the accommodating chamber 101. The first direction F1 and the second direction F2 intersect. The first direction F1 can be parallel to the extension direction of the central axis C1 of the circulation tank 10, or the first direction F1 can also be set at an angle to the central axis C1. The second direction can be parallel to the radial direction of the circulation tank 10, and the second direction F2 is perpendicular to the central axis C1; or the second direction F2 can also be at an angle to the radial direction of the circulation tank 10, and the second direction F2 is set at an angle to the central axis C1; or the second direction F2 can also be the circumferential direction of the circulation tank 10, and the second heat sink 312 is bent and extends along the circumferential direction of the circulation tank 10. In some embodiments, the second heat sink 312 is arranged to extend in a winding manner to increase the contact area between the second heat sink 312 and the slurry.

[0036] In the pulping equipment 100 provided in the embodiment of the present application, on the one hand, the pulping equipment 100 is based on the first heat sink 311 and the second heat sink 312 to jointly dissipate heat for the slurry. The extension directions of the first heat sink 311 and the second heat sink 312 are arranged at an angle, which can increase the contact area of ​​the first heat sink 311 and the second heat sink 312, and improve the heat dissipation efficiency of the heat dissipation structure 30 for the slurry. The heat dissipation structure 30 extends into the interior of the accommodating cavity 101, and can dissipate heat in time for the slurry close to the central axis C1 of the circulation tank 10, thereby avoiding heat accumulation inside the slurry and causing the slurry temperature to be too high. 0 and the circulation tank 10 jointly dissipate heat for the slurry, effectively improving the temperature consistency of the slurry, thereby improving the quality of the slurry; on the other hand, compared to the pulping equipment in which the dispersion structure is set outside the circulation tank and connected to the circulation tank through a connecting pipe, the pulping equipment 100 in the embodiment of the present application is based on setting a dispersion structure 20 in the accommodating cavity 101, and the slurry is dispersed and circulated inside the circulation tank 10 through the dispersion structure 20, which can simplify the structure of the pulping equipment 100, make the structure of the pulping equipment 100 more compact, and do not need to set additional pipelines, which greatly reduces the difficulty of cleaning the pulping equipment 100.

[0037] The circulation tank 10 includes a side wall 12 and a bottom wall 13. The side wall 12 is fixedly connected to the bottom wall 13. The side wall 12 and the bottom wall 13 enclose a accommodating chamber 101. The pulping equipment 100 also includes a top cover 11. The top cover 11 is arranged on the top 102 of the circulation tank 10, and is used to cover the end of the side wall 12 away from the bottom wall 13. The first heat sink 311 can be connected to the side wall 12 of the circulation tank 10, or to the top cover 11. In some embodiments, the first heat sink 311 is detachably connected to the top cover 11 to facilitate maintenance of the heat dissipation structure 30. In some embodiments, the first heat sink 311 can also be non-detachably connected to the top cover 11. For example, the first heat sink 311 is welded to the top cover 11.

[0038] Multiple heat dissipation structures 30 may be provided, and multiple heat dissipation structures 30 may be arranged at intervals along the circumference of the circulation tank 10 to increase the contact area between the heat dissipation structure 30 and the slurry and improve the heat dissipation effect. The multiple heat dissipation structures 30 may be arranged at equal intervals along the circumference of the circulation tank 10, or at unequal intervals. In some embodiments, a single heat dissipation structure 30 may be provided.

[0039] Multiple second heat sinks 312 are provided, and the plurality of second heat sinks 312 are arranged in intervals along the first direction F1. The number of second heat sinks 312 can be set according to actual needs and is not specifically limited in this application. For example, the number of second heat sinks 312 includes, but is not limited to, two, three, four, five, etc.

[0040] When the dispersion structure 20 drives the slurry to circulate, the flow rate of the slurry near the bottom 103 of the circulation tank 10 is greater than the flow rate of the slurry near the top 102 of the circulation tank 10. The length of the second heat sink 312 near the bottom 103 of the circulation tank 10 is greater than or equal to the length of the second heat sink 312 near the top 102 of the circulation tank 10, and / or the spacing between two adjacent second heat sinks 312 decreases or becomes equal from the top 102 of the circulation tank 10 toward the bottom 103 of the circulation tank 10. This can increase the contact between the second heat sink 312 and the slurry with a higher flow rate, thereby improving the heat dissipation efficiency of the heat dissipation structure 30 for the slurry. The length of the second heat sink 312 can refer to the distance between the free end of the second heat sink 312 and the first heat sink 311, or the extended length of the second heat sink 312. The extended length of the second heat sink 312 is greater than the width of the first heat sink 311 along the radial direction of the circulation tank 10. In some embodiments, the length of the second heat dissipation element 312 near the bottom 103 of the circulation tank 10 is greater than the length of the second heat dissipation element 312 near the top 102 of the circulation tank 10. The lengths of the plurality of second heat dissipation elements 312 along the first direction F1 can vary in length according to an arithmetic progression, a geometric ratio, or an irregular pattern. In some embodiments, the plurality of second heat dissipation elements 312 include at least two groups, each group including at least two second heat dissipation elements 312. The second heat dissipation elements 312 within each group have the same length, and the length of the group of second heat dissipation elements 312 near the bottom 103 is greater than the length of the group of second heat dissipation elements 312 near the top 102 of the circulation tank 10. In some embodiments, the spacing between adjacent second heat dissipation elements 312 decreases from the top 102 of the circulation tank 10 toward the bottom 103 of the circulation tank 10. The spacing between adjacent second heat dissipation elements 312 along the first direction F1 can decrease in length according to an arithmetic progression, a geometric ratio, or an irregular pattern. In some embodiments, the distance between two adjacent second heat dissipation members 312 may also be set to be equal.

[0041] The distance between the first heat sink 311 and the sidewall 12 of the circulation tank 10 is less than or equal to the distance between the first heat sink 311 and the central axis C1 of the circulation tank 10. The second heat sink 312 is located on the side of the first heat sink 311 that is closer to the central axis C1 of the circulation tank 10. When the dispersion structure 20 drives the slurry to circulate, the flow velocity of the slurry near the sidewall 12 of the circulation tank 10 is greater than the flow velocity of the slurry near the central axis C1 of the circulation tank 10. The first heat sink 311 is disposed near the side wall 12 of the circulation tank 10, which can increase the flow rate of the slurry at the surface of the first heat sink 311, thereby improving the heat exchange efficiency between the first heat sink 311 and the slurry and improving the heat dissipation efficiency. The second heat sink 312 is located on the side of the first heat sink 311 close to the center axis C1 of the circulation tank 10, which can reduce the obstruction of the second heat sink 312 on the slurry flowing from the side wall toward the center axis C1, thereby increasing the flow rate of the slurry at the surface of the second heat sink 312, reducing the dirt thermal resistance of the second heat sink 312, and improving the heat dissipation efficiency. The first heat sink 311 is spaced apart from the side wall 12 of the circulation tank 10 to prevent the slurry from being blocked between the first heat sink 311 and the side wall 12. The distance between the first heat sink 311 and the side wall 12 can be set according to actual needs and is not specifically limited in this application.

[0042] See also Figure 2 In some embodiments, a guide hole 3121 is provided on the second heat sink 312. The guide hole 3121 is provided through the second heat sink 312. It can be understood that when the slurry flows, due to the blocking effect of the second heat sink 312, the slurry will form a vortex area on the downstream side of the second heat sink 312 along the flow direction of the slurry. The vortex area is located on the side of the second heat sink 312 facing away from the inclined surface 3122. The slurry flow rate in the vortex area is low, and the slurry is retained, which makes the slurry easily adhere to the second heat sink 312, forming a fouling thermal resistance effect, thereby reducing the heat dissipation capacity of the second heat sink 312. When the slurry flows through the second heat sink 312, the guide hole 3121 can allow part of the slurry to flow to the downstream side of the second heat sink 312 along the flow direction of the slurry, thereby reducing the size of the vortex area, reducing the size of the pressure resistance caused by the slurry when flowing through the second heat sink 312, reducing the flow rate loss of the slurry, and the slurry flowing through the guide hole 3121 will promptly take away the slurry retained in the vortex area, reducing the slurry adhering to the second heat sink 312, reducing the dirt thermal resistance effect, and improving the heat dissipation capacity of the second heat sink 312. In addition, the guide hole 3121 can also cause the slurry to form a diversion, thereby improving the stirring and mixing effect of the slurry. Among them, the aperture of the guide hole 3121 can be specifically set according to actual needs and is not specifically limited in this application.

[0043] See also Figure 3In some embodiments, the heat dissipation structure 30 is provided with a flow-guiding structure 3123 along the sidewall 12 of the circulation tank 10 in the circumferential direction. The flow-guiding structure 3123 is used to form turbulence near the surface of the heat dissipation structure 30 when the slurry flows through the surface of the heat dissipation structure 30, so as to reduce the fluid separation effect when the slurry flows through the heat dissipation structure 30, thereby reducing the size of the vortex area formed on the downstream side of the heat dissipation structure 30 in the flow direction of the slurry, reducing the size of the pressure resistance caused by the slurry when flowing through the heat dissipation structure 30, and thus reducing the flow rate loss of the slurry. In addition, the flow-guiding structure 3123 can also reduce the slurry adhering to the heat dissipation structure 30, reduce the thermal resistance effect of dirt, and increase the contact area between the heat dissipation structure 30 and the slurry, thereby improving the heat dissipation capacity of the heat dissipation structure 30.

[0044] The guide structure 3123 can be constructed as a guide groove and / or a guide protrusion on the heat dissipation structure 30. In some embodiments, the guide structure 3123 is constructed as a guide groove opened on the first heat dissipation member 311. A plurality of guide grooves are provided, and the plurality of guide grooves are spaced apart. In some embodiments, the guide structure 3123 is constructed as a guide protrusion protruding from the first heat dissipation member 311. A plurality of guide protrusions are provided, and the plurality of guide protrusions are spaced apart. In some embodiments, the guide structure 3123 can also be constructed as a plurality of guide grooves and a plurality of guide protrusions opened on the first heat dissipation member 311. A plurality of guide grooves and a plurality of guide protrusions are spaced apart. In some embodiments, the guide structure 3123 can also be constructed as a guide groove and / or a guide protrusion provided on the second heat dissipation member 312.

[0045] Please also refer to Figure 1 and Figure 4 The heat dissipation structure 30 is provided with a heat conduction channel 3111. A heat conduction medium is provided in the heat conduction channel 3111 and circulates within the heat conduction channel 3111. A portion of the heat dissipation structure 30 is located inside the circulation tank 10, while another portion is located outside the circulation tank 10. When the heat conduction medium flows within the heat conduction channel 3111, it can transfer heat from the inside of the circulation tank 10 to the outside of the circulation tank 10.

[0046] The first heat sink 311 is provided with a heat conduction channel 3111. The heat conduction channel 3111 extends along the extension direction of the first heat sink 311. The first heat sink 311 is constructed as a tubular structure. The cross-section of the first heat sink 311 can be circular, elliptical, polygonal, etc. One end of the first heat sink 311 extends into the circulation tank 10 and into the slurry, while the other end of the first heat sink 311 extends outside the circulation tank 10.

[0047] In some embodiments, a branch channel connected to the heat conduction channel 3111 is provided in the second heat dissipation member 312. A heat conduction medium is provided in the heat conduction channel 3111 and the branch channel. The heat conduction medium can circulate between the branch channel and the heat conduction channel 3111, thereby conducting the heat of the second heat dissipation member 312 to the first heat dissipation member 311, and then conducting it to the outside of the circulation tank 10 through the first heat dissipation member 311. Exemplarily, the number of branch channels can be set to one. In some embodiments, the number of branch channels can be set to multiple to improve the heat dissipation capacity of the second heat dissipation member 312. The multiple branch channels are spaced apart, or the multiple branch channels are interconnected and staggered.

[0048] Exemplarily, the heat dissipation structure 30 includes a heat pipe. A heat conducting channel 3111 is provided in the heat pipe. The heat conducting channel 3111 is configured as a capillary tube. Among them, the first heat dissipation element 311 can be configured as a heat pipe. The heat pipe includes a first segment 321 and a second segment 322 connected to the first segment 321. The first segment 321 is located in the accommodating cavity 101 and immersed in the slurry. The second segment 322 is located outside the circulation tank 10. The heat conducting medium in the first segment 321 vaporizes after absorbing the heat of the slurry and flows along the heat conducting channel 3111 to the second segment 322. The vaporized heat conducting medium condenses into a liquid in the second segment 322. The heat conducting medium condensed into a liquid will flow back to the first segment 321 along the capillary tube due to the capillary principle. The heat conducting medium circulates back and forth between the first segment 321 and the second segment 322, thereby achieving heat dissipation of the slurry. In this way, the heat dissipation structure 30 can spontaneously circulate the heat-conducting medium within the heat-conducting channel 3111 by utilizing the temperature difference between the slurry and the external environment, avoiding the need for an additional drive structure, thereby reducing the power consumption and operating cost of the pulping apparatus 100. For example, the boiling point of the heat-conducting medium can be configured to be 25°C-45°C. For example, the boiling point of the heat-conducting medium includes, but is not limited to, 25°C, 26°C, 30°C, 35°C, 40°C, and 45°C.

[0049] In some embodiments, the heat pipe further includes a third segment 323 connected between the first segment 321 and the second segment 322. The third segment 323 is at least partially located within the accommodating cavity 101. The third segment 323 is located above the slurry, or the third segment 323 can be partially immersed in the slurry. The third segment 323 is configured as an insulating segment, and the third segment 323 is used to reduce the heat exchange between the heat-conducting medium located in the third segment 323 and the outside. When the heat-conducting medium in the first segment 321 vaporizes and flows along the heat-conducting channel 3111, the third segment 323 is used to prevent the heat of the vaporized heat-conducting medium from dissipating to the space between the top cover 11 and the slurry, so that the vaporized heat-conducting medium flows to the second segment 322, thereby conducting the heat of the slurry to the outside of the circulation tank 10.

[0050] See also Figure 2 In some embodiments, fins 324 are provided on the first segment 321 and / or the second segment 322 to increase the heat conduction area, thereby increasing the heat absorption capacity of the first segment 321 and / or increasing the heat dissipation capacity of the second segment 322. The fins 324 can be provided in a plurality, and the plurality of fins 324 are spaced apart. The number of fins can be specifically set according to actual needs and is not specifically limited in this application. In some embodiments, the first segment 321 is provided with fins 324. In some embodiments, the second segment 322 is provided with fins 324. In some embodiments, the first segment 321 and the second segment 322 are respectively provided with fins 324.

[0051] In some embodiments, the heat dissipation structure 30 further includes a temperature control element 325. The temperature control element 325 is disposed outside the circulation tank 10 and is used to control the temperature of the second segment 322. By regulating the temperature of the second segment 322, the temperature control element 325 can indirectly regulate the temperature of the first segment 321, thereby regulating the temperature of the slurry. The temperature control element 325 can be configured as a cooling water jacket, a cooling fan, or the like.

[0052] In some embodiments, the heat dissipation structure 30 further includes a protective sleeve 326. The protective sleeve 326 is hollow, and the heat pipe is disposed within the protective sleeve 326. The protective sleeve 326 is used to protect the heat pipe, preventing the slurry from contacting the heat pipe, preventing the slurry from corroding the heat pipe, and preventing the heat pipe from contaminating the slurry. The second heat dissipation element 312 is connected to the protective sleeve 326.

[0053] See also Figure 5In some embodiments, the heat dissipation structure 30 includes a first tube portion 331 and a second tube portion 332. The first heat dissipation element 311 can be constructed as the first tube portion 331 and the second tube portion 332. The heat conduction channel 3111 includes a first flow channel 3311 and a second flow channel 3321. The first tube portion 331 defines a first flow channel 3311. The first tube portion 331 extends through the interior of the second tube portion 332. A second flow channel 3321 is formed between the outer wall of the first tube portion 331 and the inner wall of the second tube portion 332. The end of the first tube portion 331 and the end of the second tube portion 332 are connected, thereby connecting the first flow channel 3311 and the second flow channel 3321. The end of the second tube portion 332 located within the accommodating chamber 101 is closed. The heat conduction medium circulates between the first flow channel 3311 and the second flow channel 3321. One end of the second tube portion 332 extends into the circulation tank 10, and the other end extends to the outside of the circulation tank 10. One end of the first tube portion 331 extends into the circulation tank 10, and the other end extends to the outside of the circulation tank 10. After absorbing heat from the slurry, the heat-conducting medium in the second flow channel 3321 flows to the outside of the circulation tank 10 to dissipate heat. The cooled heat-conducting medium then flows from the first flow channel 3311 into the circulation tank 10. In some embodiments, after absorbing heat from the slurry, the heat-conducting medium in the second flow channel 3321 flows into the first flow channel 3311, flows through the first flow channel 3311 to the outside of the circulation tank 10 to dissipate heat. The cooled heat-conducting medium then flows from the second flow channel 3321 into the circulation tank 10.

[0054] The cross-sectional shape of the first tube portion 331 can be circular, elliptical, polygonal, etc. The cross-sectional shape of the second tube portion 332 can be circular, elliptical, polygonal, etc. The cross-sectional shape of the first tube portion 331 can be the same as or different from the cross-sectional shape of the second tube portion 332. In some embodiments, the second tube portion 332 can be provided with fins to increase the heat exchange efficiency between the second tube portion 332 and the slurry, thereby improving the heat dissipation effect.

[0055] See also Figure 6 In some embodiments, the first tube portion 331 is located outside the second tube portion 332. The end of the first tube portion 331 is connected to the end of the second tube portion 332. For example, the first tube portion 331 and the second tube portion 332 can be connected to form a U-shaped structure. In some embodiments, the first tube portion 331 and the second tube portion 332 can also be connected to form a V-shaped, wavy, or other structures, which are not specifically limited in this application. Among them, the second heat dissipation member 312 can be connected to the first tube portion 331 and / or the second tube portion 332.

[0056] In some embodiments, the heat dissipation structure 30 further includes a pumping element. The pumping element is located outside the circulation tank 10. The pumping element is used to extract the heat-conducting medium from the second flow channel 3321 and pump the heat-conducting medium into the first flow channel 3311, thereby causing the heat-conducting medium to circulate between the first flow channel 3311 and the second flow channel 3321. In this way, the pumping element actively drives the heat-conducting medium to circulate within the heat-conducting channel 3111. By adjusting the circulation speed of the heat-conducting medium, the heat dissipation efficiency of the heat dissipation structure 30 can be adjusted to meet the heat dissipation requirements of the slurry at different dispersion stages, improve the temperature adjustment accuracy of the slurry, improve the temperature consistency of the slurry, and improve the quality of the slurry.

[0057] In some embodiments, the boiling point of the heat-conducting medium is lower than the maximum temperature of the slurry, and the heat-conducting medium completely fills the heat-conducting channel 3111. A pumping member pumps the liquid heat-conducting medium, causing it to circulate between the first flow channel 3311 and the second flow channel 3321. In some embodiments, the boiling point of the heat-conducting medium is higher than or equal to the maximum temperature of the slurry, and the heat-conducting medium partially fills the heat-conducting channel 3111. The heat-conducting medium is heated by the slurry in the second flow channel, vaporizing and flowing along the second flow channel 3321 to the pumping member. The pumping member compresses the vaporized heat-conducting medium, causing it to release heat and liquefy, and then pumps the liquefied heat-conducting medium into the first flow channel 3311.

[0058] See also Figure 1 In some embodiments, the pulping equipment 100 further includes a stirring paddle 40. The stirring paddle 40 is used to stir the slurry. The stirring paddle 40 includes a rotating shaft 41 and a plurality of stirring blades 42 arranged on the rotating shaft 41. The rotating shaft 41 extends in the axial direction of the circulation tank 10 in the accommodating chamber 101. The stirring blades 42 are located in the accommodating chamber 101. The plurality of stirring blades 42 are arranged at intervals along the extension direction of the rotating shaft 41. The stirring blades 42 are used to push the slurry to flow toward the dispersion structure 20. In some embodiments, the plurality of stirring blades 42 are also arranged at intervals along the circumferential direction of the rotating shaft 41. For example, the plurality of stirring blades 42 can be divided into a plurality of groups, and the plurality of groups of stirring blades 42 are arranged at intervals along the axial direction of the rotating shaft 41, each group including a plurality of stirring blades 42, and the plurality of stirring blades 42 in each group are arranged at intervals along the circumferential direction of the rotating shaft 41. The number of stirring blades 42 can be specifically set according to actual needs and is not specifically limited in this application. For example, the number of stirring blades 42 may be 6, 9, 12, etc.

[0059] The extension direction of the stirring blade 42 intersects with the extension direction of the rotating shaft 41. For example, the stirring blade 42 is extended along the radial direction of the rotating shaft 41. In some embodiments, the extension direction of the stirring blade 42 forms an acute angle with the axial direction of the rotating shaft 41. The stirring blade 42 is tilted toward the top 102 or the bottom 103 of the circulation tank 10. In some embodiments, the stirring blade 42 can also extend in a curved manner. When the rotating shaft 41 drives the stirring blade 42 to rotate, the stirring blade 42 cuts the slurry, thereby reducing the rotational resistance of the stirring paddle 40. In some embodiments, the stirring blade 42 is arranged to extend in a winding manner to increase the length of the shear seam formed when the stirring blade 42 and the second heat sink 312 are intertwined, thereby improving the shearing effect on the slurry.

[0060] Along the axial direction of the circulation tank 10, a plurality of stirring blades 42 and a plurality of second heat sinks 312 are staggered. When the rotating shaft 41 drives the stirring blades 42 to rotate, the stirring blades 42 meet the second heat sink 312 and shear the slurry, thereby improving the mixing uniformity of the slurry. In some embodiments, the plurality of stirring blades 42 are arranged in a spiral shape along the axial direction of the rotating shaft 41. When the rotating shaft 41 drives the stirring blades 42 to rotate, the plurality of stirring blades 42 meet the second heat sink 312 in turn, avoiding the concentrated encounter of the plurality of stirring blades 42 and the plurality of second heat sinks 312, thereby avoiding the concentrated shearing of the slurry by the plurality of stirring blades 42 and the plurality of second heat sinks 312, reducing the reaction force of the slurry on the stirring blades 42, and reducing the rotational resistance of the stirring blade 40. In addition, when the rotating shaft 41 drives the multiple stirring blades 42 to rotate, the multiple stirring blades 42 are arranged in a spiral shape, which can drive the slurry to flow along the axial direction of the rotating shaft 41, thereby driving the slurry to move toward the dispersion structure 20, thereby improving the circulation efficiency of the slurry in the circulation tank 10. In some embodiments, the arrangement direction of the multiple stirring blades 42 is parallel to the axial direction of the rotating shaft 41 to reduce the difficulty of installing the stirring blades 42.

[0061] The width direction of the cross section of the stirring blade 42 is tilted relative to the orthographic projection of the axial direction of the rotating shaft 41 on the plane where the cross section of the stirring blade 42 is located, and / or the width direction of the cross section of the second heat sink 312 is tilted relative to the orthographic projection of the first direction F1 on the plane where the cross section of the second heat sink 312 is located. That is, the width direction of the cross section of the stirring blade 42 is arranged at an angle to the axial direction of the rotating shaft 41, and / or the width direction of the cross section of the second heat sink 312 is arranged at an angle to the first direction F1.

[0062] In some embodiments, the width direction of the cross section of the stirring blade 42 is tilted relative to the axial direction of the rotating shaft 41. The thickness of the stirring blade 42 is less than the width. The stirring blade 42 can be constructed as a sheet structure. The cross section of the stirring blade 42 includes but is not limited to a rectangular, oval, or spindle shape. The width direction of the cross section of the stirring blade 42 is the direction of the long side of the cross section. When the slurry collides with the stirring blade 42, the tilted arrangement of the stirring blade 42 can cause the stirring blade 42 to push the slurry toward the dispersion structure 20 to promote the circulation and dispersion of the slurry. The tilt direction of the stirring blade 42 corresponds to the rotation direction of the stirring paddle 40. In some embodiments, from the top 102 of the circulation tank 10 toward the bottom 103, when the stirring paddle 40 rotates clockwise, the stirring blade 42 tilts in a left-handed direction. From the top 102 of the circulation tank 10 toward the bottom 103, along the clockwise direction of the rotating shaft 41, the stirring blade 42 tilts toward the top 102 of the circulation tank 10. In some embodiments, the stirring blade 42 is tilted in a right-hand direction from the top 102 of the circulation tank 10 toward the bottom 103 when the stirring paddle 40 rotates counterclockwise. From the top 102 of the circulation tank 10 toward the bottom 103, the stirring blade 42 is tilted toward the top 102 of the circulation tank 10 along the counterclockwise direction of the rotation shaft 41.

[0063] In some embodiments, the width direction of the cross section of the second heat sink 312 is tilted relative to the first direction F1. The thickness of the second heat sink 312 is less than the width. The second heat sink 312 can be constructed as a sheet structure. The cross section of the second heat sink 312 includes but is not limited to a rectangle, an ellipse, and a shuttle shape. The width direction of the cross section of the second heat sink 312 is the long side direction of the cross section. In this way, when the slurry collides with the second heat sink 312, the second heat sink 312 can guide the slurry so that the slurry flows toward the dispersion structure 20 to promote the circulation and dispersion of the slurry. Exemplarily, the cross section of the second heat sink 312 can extend in a straight line along the width direction. In some embodiments, the cross section of the second heat sink 312 can also extend in an arc shape along the width direction.

[0064] The inclination direction of the second heat sink 312 corresponds to the rotation direction of the stirring paddle 40. In some embodiments, from the top 102 of the circulation tank 10 toward the bottom 103, when the stirring paddle 40 rotates clockwise, the second heat sink 312 is inclined in a left-handed direction. Along the clockwise direction of the first heat sink 311, the second heat sink 312 is inclined toward the top 102 of the circulation tank 10. In some embodiments, from the top 102 of the circulation tank 10 toward the bottom 103, when the stirring paddle 40 rotates counterclockwise, the second heat sink 312 is inclined in a right-handed direction. From the top 102 of the circulation tank 10 toward the bottom 103, along the counterclockwise direction of the first heat sink 311, the second heat sink 312 is inclined toward the top 102 of the circulation tank 10. Among them, the inclination direction of the width direction of the cross section of the stirring blade 42 relative to the axial direction of the rotating shaft 41 is the same as the inclination direction of the width direction of the cross section of the second heat sink 312 relative to the first direction F1, so that the moving direction of the slurry pushed by the stirring blade 42 is the same as the moving direction of the slurry pushed by the second heat sink 312, which is conducive to the flow of the slurry toward the dispersion structure 20, thereby improving the circulation efficiency of the slurry.

[0065] Please also refer to Figure 1 and Figure 7 The second heat sink 312 is provided with an inclined surface 3122 on the side closest to the dispersion structure 20. When slurry impacts the inclined surface 3122, it generates a reaction force along the axial direction of the circulation tank 10, causing the slurry to flow toward the dispersion structure 20. In a plane perpendicular to the extension direction of the second heat sink 312, the cross-section of the second heat sink 312 includes an inclined side edge adjacent to the bottom 103 of the circulation tank 10. This inclined side edge extends along the second direction F2 to form the inclined surface 3122. The width of the second heat sink 312 extends in the direction of the inclined side edge. An acute angle α is formed between the inclined side edge and the first direction F1. For example, the acute angle α can be 45°, which provides the second heat sink 312 with better slurry guidance. In one embodiment, the acute angle α can also be 25°, 30°, 35°, 40°, 50°, 55°, 60°, 65°, and so on, although this is not specifically limited in this application.

[0066] The second heat sink 312 is spaced apart from the rotating shaft 41 at the end away from the first heat sink 311. The distance between the second heat sink 312 and the rotating shaft 41 is greater than the distance between the second heat sink 312 and the adjacent stirring blade 42. Thus, when the stirring blade 42 meets the second heat sink 312, the gap between the second heat sink 312 and the rotating shaft 41 provides sufficient space for the slurry to flow, thereby reducing the rotational resistance of the stirring paddle 40.

[0067] The distance between the end of the stirring blade 42 away from the rotating shaft 41 and the first heat sink 311 is less than or equal to the distance between the end of the second heat sink 312 away from the first heat sink 311 and the rotating shaft 41. Among them, the distance between the end of the second heat sink 312 away from the first heat sink 311 and the rotating shaft 41 can be specifically set according to actual needs, and is not specifically limited in this application. The distance between the second heat sink 312 and the adjacent stirring blade 42 can be specifically set according to actual needs, and is not specifically limited in this application. In some embodiments, the extended length of the second heat sink 312 is greater than or equal to the extended length of the stirring blade 42. In some embodiments, the extended length of the stirring blade 42 is greater than or equal to the extended length of the second heat sink 312.

[0068] The difference between the distance between the end of the stirring blade 42 away from the rotating shaft 41 and the rotating shaft 41 and the distance between the end of the second heat sink 312 away from the first heat sink 311 and the rotating shaft 41 is greater than the distance between the second heat sink 312 and the adjacent stirring blade 42. In this way, when the stirring blade 42 meets the second heat sink 312, the stirring blade 42 and the second heat sink 312 can fully shear and disperse the slurry.

[0069] In some embodiments, a through hole is provided on the stirring blade 42. It is understandable that when the slurry flows, due to the blocking effect of the stirring blade 42, the slurry will form a vortex area on the side of the stirring blade 42 downstream along the flow direction of the slurry, that is, the stirring blade 42 will form a vortex area on the side of the top 102 of the circulation tank 10. The through hole can make the slurry flow through the surface of the stirring blade 42, so that part of the slurry flows through the through hole to the side of the stirring blade 42 downstream along the flow direction of the slurry, thereby reducing the size of the vortex area, reducing the size of the pressure resistance caused by the slurry when flowing through the stirring blade 42, reducing the flow rate loss of the slurry, and reducing or avoiding the jitter of the stirring blade 42 caused by the Karman vortex street effect, improving the stability and reliability of the stirring blade 40 when rotating, thereby improving the service life of the stirring blade 40. In addition, the through hole can also cause the slurry to form a diversion, thereby improving the stirring and mixing effect of the slurry. The diameter of the through hole can be set according to actual needs and is not specifically limited in this application.

[0070] See also Figure 8In some embodiments, the second heat sink 312 includes a first heat sink segment 3124 and at least one second heat sink segment 3125. The first heat sink segment 3124 is connected to the first heat sink 311 and extends along the second direction F2. The second heat sink segment 3125 is connected to the first heat sink segment 3124. The extension direction of the second heat sink segment 3125 intersects the extension direction of the first heat sink segment 3124. This increases the contact area between the second heat sink 312 and the slurry, thereby improving the heat dissipation efficiency of the second heat sink 312 from the slurry.

[0071] In some embodiments, the stirring blade 42 includes a first stirring section 421 and at least one second stirring section 422. The first stirring section 421 is connected to the rotating shaft 41. The extension direction of the first stirring section 421 intersects with the extension direction of the rotating shaft 41. The second stirring section 422 is connected to the first stirring section 421. The extension direction of the second stirring section 422 intersects with the extension direction of the first stirring section 421. The second stirring section 422 is staggered with the second heat dissipation section 3125. In this way, when the stirring blade 42 meets the second heat dissipation member 312, the length of the shear gap formed by the stirring blade 42 and the second heat dissipation member 312 can be increased, thereby improving the shear dispersion effect on the slurry.

[0072] The second heat dissipation segments 3125 can be provided in a plurality, and the plurality of second heat dissipation segments 3125 are spaced apart along the extension direction of the first heat dissipation segment 3124. The second stirring segments 422 can be provided in a plurality, and the plurality of second stirring segments 422 are spaced apart along the extension direction of the first stirring segment 421. The plurality of second heat dissipation segments 3125 and the plurality of second stirring segments 422 are arranged in an interlaced manner.

[0073] See also Figure 1 In some embodiments, the stirring paddle 40 further includes a scraping blade 43. The scraping blade 43 is spaced apart from the stirring blade 42. The scraping blade 43 is connected to the rotating shaft 41 and is used to scrape off the slurry adhering to the inner wall of the circulation tank 10 to promote the circulation of the slurry and improve the dispersion effect of the slurry. When the rotating shaft 41 rotates, the scraping blade 43 is driven to rotate. The scraping blade 43 is spaced apart from the stirring blade 42 to avoid interference with the stirring blade 42. A plurality of scraping blades 43 can be provided, and the plurality of scraping blades 43 are spaced apart along the circumference of the rotating shaft 41 to improve the scraping effect of the slurry. In some embodiments, the stirring paddle 40 further includes a scraping member 44. The scraping member 44 is provided on the scraping blade 43. The scraping member 44 is used to contact the inner wall of the circulation tank 10 and / or to contact the dispersion structure 20 to scrape off the slurry.

[0074] Please also refer to Figure 1 and Figure 9In some embodiments, a guide groove 411 is provided in the rotating shaft 41. A guide sleeve 412 is provided in the guide groove 411. The guide sleeve 412 and the side wall of the guide groove 411 are separated to form a cooling channel 413. A cooling medium is provided in the cooling channel 413. The cooling medium is used to cool the rotating shaft 41, so that the rotating shaft 41 cools the slurry. The cooling medium can be a liquid or a gas. For example, the cooling medium can be water, oil, etc. After absorbing the heat of the slurry, the cooling medium in the cooling channel 413 flows to the outside of the circulation tank 10 to dissipate heat, and the cooled cooling medium flows from the guide sleeve 412 into the circulation tank 10.

[0075] The flow guide sleeve 412 can be rotatable or fixed relative to the rotating shaft 41. For example, the flow guide sleeve 412 is disposed on the top cover 11 and can rotate relative to the rotating shaft 41. This allows the flow guide sleeve 412 to remain stationary relative to the top cover 11 when the rotating shaft 41 rotates, thereby simplifying the assembly of the flow guide sleeve 412. The flow guide sleeve 412 and the top cover 11 are detachably fixed together, thereby facilitating operations such as assembly and replacement of the flow guide sleeve 412. In some embodiments, the flow guide sleeve 412 can be rotatably connected to the top cover 11.

[0076] Please also refer to Figure 1 、 Figure 10 and Figure 11 The dispersion structure 20 is used to suck the slurry along the axial direction of the circulation tank 10 and discharge the slurry along the radial direction of the circulation tank 10. The slurry flows in the circulation tank 10 along the bottom wall 13 from the central axis C1 of the circulation tank 10 toward the side wall 12, flows upward along the side wall 12 from the bottom 103 to the top 102, and flows downward from the top 102 to the bottom 103 in and near the central axis C1 of the circulation tank 10, thereby forming a circulating flow in the circulation tank 10. For example, the side wall 12 and the bottom wall 13 are connected in an arc, and the side wall 12 and the bottom wall 13 are smoothly connected, which is conducive to reducing the flow velocity loss of the slurry at the connection between the bottom wall 13 and the side wall 12, and increasing the circulation speed of the slurry in the circulation tank 10. In some embodiments, the bottom wall 13 can be bent toward the top 102 to guide the slurry and reduce the flow velocity loss of the slurry. In some embodiments, a discharge port 131 is opened on the bottom wall 13, and the discharge port is connected to the accommodating cavity 101. The discharge port 131 is positioned near the dispersion structure 20 to increase the slurry discharge rate from the discharge port 131 and improve discharge efficiency. The axial direction of the circulation tank 10 is parallel to the central axis C1, the radial direction of the circulation tank 10 is perpendicular to the central axis C1, and the circumferential direction of the circulation tank 10 is perpendicular to and surrounds the central axis C1.

[0077] The dispersed structure 20 includes a stator 21 and a rotor 22. The stator 21 includes a stator disk 211 and at least one layer of stator retaining rings 212. The stator retaining rings 212 are disposed on the stator disk 211. Stator slots 2121 are defined in the stator retaining rings 212. The rotor 22 includes a rotor disk 221 and at least one layer of rotor retaining rings 222. The rotor retaining rings 222 are disposed on the rotor disk 221. Rotor slots 2221 are defined in the rotor retaining rings 222. The rotor retaining rings 222 are located on the inner side and / or outer side of the stator retaining rings 212. An inlet 201 is defined in the stator disk 211. The stator slots 2121 on the outermost stator retaining ring 212 or the rotor slots 2221 on the outermost rotor retaining ring 222 are configured as the inlet 202. At least one of the stator retaining rings 212 and the rotor retaining rings 222 is configured in multiple layers. For example, the rotor retaining ring 222 is provided as a single layer, and the stator retaining ring 212 is provided as a double layer, and the rotor retaining ring 222 is located between the two layers of stator retaining rings 212. The stator slots 2121 on the outermost stator retaining ring 212 are configured as the outflow port 202. The slurry flows in from the inflow port 201 and flows out from the outflow port 202. The stator 21 is fixed relative to the circulation tank 10, and the rotor 22 is rotatable relative to the circulation tank 10. When the rotor 22 rotates, the slurry generates a negative pressure near the rotor retaining ring 222, causing the slurry to flow from the inflow port 201 into the interior of the dispersion structure 20, and the slurry is thrown out from the outflow port 202 through the centrifugal action of the rotor retaining ring 222 on the slurry. When the slurry flows through the rotor slots 2221 on the rotor retaining ring 222 and the stator slots 2121 on the stator retaining ring 212, the rotor retaining ring 222 and the stator retaining ring 212 shear and disperse the slurry.

[0078] The rotor 22 also includes a pusher blade 223 fixedly connected to the rotor disk 221. The pusher blade 223 and the rotor disk 221 can be fixedly connected together by welding, screwing, clamping, etc., or the pusher blade 223 can also be integrally formed with the rotor disk 221. The pusher blade 223 is arranged to extend in a spiral shape. Along the axial direction of the circulation tank 10, the pusher blade 223 is roughly conical. The pusher blade 223 can be a clockwise spiral or a counterclockwise spiral. When the rotor 22 rotates, the pusher blade 223 is used to push the slurry to flow along the axial direction and radial direction of the circulation tank 10, so that the slurry flows from the inlet 201 into the interior of the dispersion structure 20.

[0079] The dispersed structure 20 also includes a mounting base 224. The mounting base 224 includes a first base body 2241, a second base body 2242 and a connecting member 2243. The first base body 2241 is fixedly connected to the circulation tank 10. The second base body 2242 is located on the side of the first base body 2241 away from the bottom wall 13 of the circulation tank 10. The connecting member 2243 is located between the first base body 2241 and the second base body 2242, and abuts against the first base body 2241 and the second base body 2242 respectively. The first base body 2241, the second base body 2242 and the connecting member 2243 are fixedly connected together. For example, the first base body 2241, the second base body 2242 and the connecting member 2243 can be fixedly connected together by screws or bolts. For example, the second base 2242 is provided with a screw hole, the connector 2243 is hollow, the first base 2241 is provided with a threaded hole, and the screw is passed through the threaded hole and the connector 2243 and is threadedly connected to the threaded hole. In some embodiments, the first base 2241, the second base 2242, and the connector 2243 can be fixedly connected together by welding or clamping, or the first base 2241, the second base 2242, and the connector 2243 can be integrally formed.

[0080] The stator 21 and the rotor 22 are both located between the first base 2241 and the second base 2242. The stator 21 is fixedly connected to the first base 2241 and / or the second base 2242. For example, the stator 21 is fixedly connected to the second base 2242. The stator 21 and the second base 2242 can be fixedly connected together by welding, clamping, screwing, etc., or the stator 21 and the second base 2242 can be integrally formed.

[0081] A connecting hole 2244 is provided on the second seat body 2242. The connecting hole 2244 is connected to the inlet 201. The pusher blade 223 is provided in the connecting hole 2244 and extends between the first seat body 2241 and the second seat body 2242. The portion of the pusher blade 223 located in the connecting hole 2244 and on the side of the second seat body 2242 away from the first seat body 2241 is used to push the slurry to flow along the axial direction of the circulation tank 10, so that the dispersion structure 20 sucks the slurry from the connecting hole 2244 and the inlet 201. The portion of the pusher blade 223 located between the first seat body 2241 and the second seat body 2242 is used to push the slurry to flow along the radial direction of the circulation tank 10, so that the slurry passes through the rotor slot 2221 and the stator slot 2121. The pusher blade 223 is used to increase the flow velocity of the slurry, thereby increasing the flow rate of the slurry in the dispersion structure 20 and improving the dispersion and circulation efficiency.

[0082] The dispersed structure 20 also includes a drive shaft 23 and a driver 24. The driver 24 is in driving connection with the drive shaft 23. The drive shaft 23 is fixedly connected to the rotor 22. The driver 24 is configured to rotate the drive shaft 23, thereby causing the drive shaft 23 to rotate the rotor 22 relative to the stator 21. The first base 2241 has a mounting hole formed therein, into which the drive shaft 23 is inserted. The driver 24 is disposed externally of the circulation tank 10.

[0083] In some embodiments, the dispersion structure 20 further includes a drainage hood 25. The drainage hood 25 is provided at the connecting hole 2244 and the inlet 201. The drainage hood 25 is fixedly connected to the side of the second seat body 2242 away from the first seat body 2241. The drainage hood 25 and the second seat body 2242 can be fixedly connected together by welding, clamping, screwing, etc., or the drainage hood 25 and the second seat body 2242 can be integrally formed. The drainage hood 25 is arranged in an annular shape. The pusher blades 223 are passed through the drainage hood 25. The drainage hood 25 is used to limit and guide the slurry. When the pusher blades 223 push the slurry to move, the drainage hood 25 can reduce the loss of the slurry in the radial direction under the action of centrifugation, so that the slurry remains between the drainage hood 25 and the pusher blades 223, thereby improving the axial pushing effect of the pusher blades 223 on the slurry and improving the suction flow of the dispersion structure 20.

[0084] In some embodiments, the pulping equipment 100 further includes a temperature measuring element. The temperature measuring element is used to measure the temperature of the slurry. The temperature measuring element is connected to the top cover 11 and extends at least partially into the accommodating chamber 101. The end of the temperature measuring element is immersed in the slurry. In some of the described embodiments, the distance between the end of the temperature measuring element and the bottom wall 13 is less than the distance between the end of the temperature measuring element and the top cover 11. The ratio of the distance between the end of the temperature measuring element and the liquid surface of the slurry to the distance between the liquid surface of the slurry and the bottom wall 13 is greater than 0.2. For example, the ratio of the distance between the end of the temperature measuring element and the liquid surface of the slurry to the distance between the liquid surface of the slurry and the bottom wall 13 can be 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, etc. Wherein, the liquid level of the slurry can be the liquid level formed when the slurry contained in the circulation tank 10 is within the rated capacity range of the circulation tank 10. The distance between the slurry liquid level and the bottom wall 13 of the circulation tank 10 refers to the distance between the bottom wall 13 near the dispersion structure 20 and the liquid level when the slurry in the circulation tank 10 is in a stationary state, along the axial direction of the circulation tank 10. In some embodiments, the temperature measuring element may also be connected to the stirring paddle 40 or to the side wall 12 of the circulation tank 10.

[0085] In some embodiments, the circulation tank 10 is provided with a heat dissipation jacket 50. The heat dissipation jacket 50 surrounds the sidewalls 12 and / or the bottom wall 13. A cooling medium is passed through the heat dissipation jacket 50 to cool the sidewalls 12 and / or the bottom wall 13, thereby dissipating heat from the slurry through the sidewalls 12 and / or the bottom wall 13.

[0086] In some embodiments, the pulping apparatus 100 further includes a feeding structure. A feeding port is provided on the top cover 11. The feeding structure is connected to the feeding port. The feeding structure is used to feed solid material into the circulation tank 10. The feeding structure can be configured as a twin-screw feeding mechanism.

[0087] In some embodiments, the pulping equipment 100 further includes a liquid inlet structure. A liquid inlet is provided on the top cover 11. The liquid inlet structure includes a liquid inlet pipe. The liquid inlet pipe is passed through the liquid inlet and extends into the accommodating chamber 101. The opening of the liquid inlet pipe in the accommodating chamber 101 is arranged toward the side wall 12 of the circulation tank 10, so that when the liquid inlet pipe transports liquid material into the circulation tank 10, the liquid material will flow down along the side wall 12, thereby reducing the impact force of the liquid material on the liquid surface, reducing or avoiding splashing of the liquid material, and preventing gas from mixing into the liquid material.

[0088] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A pulping device (100), characterized in that: include: A circulation tank (10), wherein a receiving chamber (101) for receiving slurry is provided in the circulation tank (10); a dispersion structure (20) located in the accommodating chamber (101) and arranged at the bottom (103) of the circulation tank (10), the dispersion structure (20) being used to disperse the slurry and allow the slurry to circulate in the circulation tank (10); A heat dissipation structure (30) comprising a first heat dissipation member (311) and a second heat dissipation member (312), wherein the first heat dissipation member (311) is connected to the circulation tank (10) and extends in a first direction (F1) within the accommodating cavity (101), and the second heat dissipation member (312) is connected to the first heat dissipation member (311) and extends in a second direction (F2) within the accommodating cavity (101), wherein the first direction (F1) intersects with the second direction (F2).

2. The pulping device (100) according to claim 1, characterized in that The heat dissipation structure (30) is provided in plurality, and the plurality of heat dissipation structures (30) are arranged at intervals along the circumferential direction of the circulation tank (10).

3. The pulping device (100) according to claim 1, characterized in that The second heat dissipation member (312) is provided in plurality, and the plurality of second heat dissipation members (312) are arranged at intervals along the first direction (F1).

4. The pulping device (100) according to claim 3, characterized in that The spacing between two adjacent second heat dissipation elements (312) becomes smaller or equal in a direction from the top (102) toward the bottom (103) of the circulation tank (10), and / or the length of the second heat dissipation element (312) close to the bottom (103) of the circulation tank (10) is greater than or equal to the length of the second heat dissipation element (312) close to the top (102) of the circulation tank (10).

5. The pulping device (100) according to claim 1, characterized in that The second heat dissipation element (312) is provided with a guide hole (3121).

6. The pulping device (100) according to claim 3, characterized in that The pulping equipment (100) further includes a stirring paddle (40), which is used to stir the slurry. The stirring paddle (40) includes a rotating shaft (41) and a plurality of stirring blades (42) arranged on the rotating shaft (41). The rotating shaft (41) extends in the accommodating chamber (101) along the axial direction of the circulation tank (10). The stirring blades (42) are located in the accommodating chamber (101). The extension direction of the stirring blades (42) intersects with the extension direction of the rotating shaft (41). The plurality of stirring blades (42) are arranged at intervals along the axial direction of the rotating shaft (41).

7. The pulping device (100) according to claim 6, characterized in that The plurality of stirring blades (42) are arranged in a spiral shape along the axial direction of the rotating shaft (41), or the arrangement direction of the plurality of stirring blades (42) is parallel to the axial direction of the rotating shaft (41).

8. The pulping device (100) according to claim 6, characterized in that The plurality of stirring blades (42) and the plurality of the second heat dissipating elements (312) are arranged in an alternating manner.

9. The pulping device (100) according to claim 6, characterized in that The width direction of the cross section of the stirring blade (42) is tilted relative to the orthographic projection of the axial direction of the rotating shaft (41) on the plane where the cross section of the stirring blade (42) is located, and / or the width direction of the cross section of the second heat sink (312) is tilted relative to the orthographic projection of the first direction (F1) on the plane where the cross section of the second heat sink (312) is located.

10. The pulping device (100) according to claim 9, characterized in that The inclination direction of the stirring blade (42) relative to the axial direction of the rotating shaft (41) is the same as the inclination direction of the second heat dissipation element (312) relative to the first direction (F1).

11. The pulping device (100) according to claim 6, characterized in that The difference between the distance between the end of the stirring blade (42) away from the rotating shaft (41) and the rotating shaft (41) and the distance between the end of the second heat sink (312) away from the first heat sink (311) and the rotating shaft (41) is greater than the distance between the second heat sink (312) and the adjacent stirring blade (42).

12. The pulping device (100) according to claim 1, characterized in that A heat conduction channel (3111) is provided in the first heat dissipation element (311), a heat conduction medium is provided in the heat conduction channel (3111), and the heat conduction medium circulates in the heat conduction channel (3111).

13. The pulping device (100) according to claim 12, characterized in that A branch channel is provided in the second heat dissipation element (312), and the branch channel is connected to the heat conduction channel (3111).

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