Pulping apparatus
By introducing a guide tube and a dispersion structure into the pulping equipment, efficient temperature regulation and consistency control of the pulp are achieved, solving the problem of low temperature regulation efficiency in traditional equipment, improving pulp quality and simplifying the equipment structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN SHANGSHUI INTELLIGENT CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-06-23
Smart Images
Figure CN120961014B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of battery pulping technology, and more particularly to a pulping device. Background Technology
[0002] In battery pulping, pulping equipment disperses the slurry to ensure uniform distribution of all materials. During dispersion, the temperature of the slurry significantly impacts its quality. Traditional pulping equipment relies on the outer wall of the tank to regulate the slurry temperature, resulting in inefficient temperature control and poor temperature uniformity. Summary of the Invention
[0003] This application provides a pulping device to solve the problems of low temperature regulation efficiency and poor temperature uniformity of pulp.
[0004] This application provides a pulping apparatus, comprising a circulation tank, a guide tube, and a dispersion structure. The circulation tank is used to contain pulp and includes a bottom wall and a side wall connected to the bottom wall. The side wall extends in a different direction than the bottom wall. A first temperature-regulating cavity is provided on the side wall and / or the bottom wall. The guide tube is disposed inside the circulation tank and includes a side plate, a bottom plate, and a guide plate. The bottom plate is disposed opposite to the bottom wall and forms a first flow channel with the bottom wall. The side plate is connected to the bottom plate and is disposed opposite to the side wall, forming a second flow channel with the side wall. The second flow channel communicates with the first flow channel. One end of the guide plate is connected to the side plate and spaced apart from the bottom plate. The other end of the guide plate is connected to the bottom plate and spaced apart from the side plate. The side plate, the bottom plate, and the guide plate form a second temperature-regulating cavity. The guide plate is annularly arranged and forms a receiving cavity. The dispersion structure is located at least partially between the bottom plate and the bottom wall, and the dispersion structure is used to circulate the slurry between the receiving cavity, the first flow channel and the second flow channel, and to disperse the slurry.
[0005] In some embodiments, the deflector is arranged in an inverted cone shape.
[0006] In some embodiments, the base plate is provided with a communication hole communicating with the receiving cavity, the dispersion structure is disposed at the communication hole, the connection between the guide plate and the side plate is located at the end of the side plate away from the base plate, and the connection between the other end of the guide plate and the base plate is located at the position of the hole wall of the communication hole.
[0007] In some embodiments, at least one of the first temperature-regulating cavity and the second temperature-regulating cavity is provided with a heat-conducting medium, or the pulping equipment further includes a heat pipe disposed in at least one of the first temperature-regulating cavity and the second temperature-regulating cavity.
[0008] In some embodiments, a first flow channel plate is provided in the first temperature regulating cavity, the first flow channel plate being used to divide the first temperature regulating cavity to form a first temperature regulating flow channel; and / or, a second flow channel plate is provided in the second temperature regulating cavity, the second flow channel plate being used to divide the second temperature regulating cavity to form a second temperature regulating flow channel.
[0009] In some embodiments, the first temperature-regulating channel extends spirally or in a labyrinthine manner along the circumferential direction of the circulation tank; and / or, the second temperature-regulating channel extends spirally or in a labyrinthine manner along the circumferential direction of the circulation tank.
[0010] In some embodiments, the guide plate is arranged in an inverted cone shape, and a baffle is provided in the second temperature regulating cavity. The shape of the cross-section of the baffle is similar to the shape of the cross-section of the second temperature regulating cavity, and the baffle is located at the center of the inscribed circle of the cross-section of the second temperature regulating cavity.
[0011] In some embodiments, the circulation tank is provided with a first inlet and a first outlet, the first inlet and the first outlet being respectively connected to the first temperature regulating chamber, the first inlet being located on the side of the first outlet away from the bottom wall, and / or, the guide tube is provided with a second inlet and a second outlet, the second inlet and the second outlet being respectively connected to the second temperature regulating chamber, the second inlet being located on the side of the second outlet away from the bottom wall.
[0012] In some embodiments, the circulating tank is provided with a first inlet and a first outlet, the first inlet and the first outlet being respectively connected to the first temperature regulating chamber; the guide tube is provided with a second inlet and a second outlet, the second inlet and the second outlet being respectively connected to the second temperature regulating chamber; the pulping equipment further includes a first connecting pipe; a first connecting hole is provided on the inner wall of the circulating tank, the first connecting hole being connected to the first temperature regulating chamber; the first connecting pipe being connected to the first connecting hole and the second inlet; and / or, the pulping equipment further includes a second connecting pipe, a second connecting hole is provided on the inner wall of the circulating tank, the second connecting hole being connected to the first temperature regulating chamber; the second connecting pipe being connected to the second connecting hole and the second outlet.
[0013] In some embodiments, at least one of the bottom wall near the bottom plate, the side wall near the side plate, the bottom plate near the bottom wall, and the side plate near the side wall is provided with heat-conducting fins.
[0014] The pulping equipment provided in this application is based on a guide tube and a dispersion structure installed in a circulating tank. A first temperature-regulating cavity is provided on the side wall and / or bottom wall of the circulating tank. The bottom plate of the guide tube and the bottom wall of the circulating tank enclose a first flow channel, and the side plate of the guide tube and the side wall of the circulating tank enclose a second flow channel. The guide plate of the guide tube, together with the side plate and the bottom plate, encloses a second temperature-regulating cavity. The guide plate encloses a receiving cavity. The dispersion structure is used to circulate the pulp between the receiving cavity, the first flow channel, and the second flow channel, and to disperse the pulp. On the one hand, the first temperature-regulating cavity can regulate the temperature of the pulp near the side wall and / or bottom wall in the circulating tank, and the second temperature-regulating cavity can regulate the temperature of the pulp near the center of the circulating tank. Thus, the first and second temperature-regulating cavities work together to regulate the temperature of the pulp, improving the pulping equipment's ability to regulate the pulp temperature. The temperature regulation efficiency improves the temperature consistency of the slurry in the circulation tank, keeping the slurry within a suitable temperature range and thus improving its quality. On the other hand, the guide plate prevents the slurry from flowing to the connection between the side plate and the bottom plate, reducing or eliminating the dead zone in the flow tube and preventing slurry accumulation in the receiving cavity. This allows all the slurry in the receiving cavity to flow through the dispersion structure, improving the dispersion quality of the slurry. The second temperature-regulating cavity formed by the guide plate, side plate, and bottom plate also improves the space utilization of the flow tube and reduces space waste. Furthermore, the dispersion structure is located in the circulation tank and is used to disperse and circulate the slurry inside the tank, simplifying the structure of the pulping equipment, making it more compact, reducing manufacturing costs, and eliminating the need for additional piping, thus reducing the difficulty of cleaning the pulping equipment. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a cross-sectional view of the pulping equipment provided in the embodiments of this application.
[0017] Figure 2 This is a cross-sectional view of the guide tube provided in some embodiments of this application.
[0018] Figure 3This is a cross-sectional view of the guide tube provided in some other embodiments of this application.
[0019] Figure 4 This is a cross-sectional view of a pulping apparatus provided in some embodiments of this application.
[0020] Figure 5 This is a schematic diagram of the structure of the guide tube provided in some embodiments of this application.
[0021] Key reference numerals in the attached drawings: Pulping equipment 100; Circulating tank 10; Side wall 11; Bottom wall 12; Outer cover 13; Guide tube 20; Side plate 21; Bottom plate 22; Connecting hole 221; Guide plate 23; First flow channel 201; Second flow channel 202; Receiving cavity 203; Baffle 24; First temperature regulating cavity 31; First flow channel plate 311; First temperature regulating flow channel 312; First liquid inlet 3101; First liquid outlet 3102; First connecting hole 3103; Second connecting hole 3104; Second temperature regulating cavity 32; Second flow channel plate 321; Second temperature regulating flow channel 322; Second liquid inlet 3201; Second liquid outlet 3202; First connecting pipe 341; Second connecting pipe 342; Heat-conducting fins 35; Dispersion structure 40; Stator 41; Rotor 42; Rotating shaft 43; Axial direction X; Radial direction Y.
[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation
[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.
[0024] In this document, references to "embodiment" or "implementation" mean that a particular feature, structure, or characteristic described in connection with an embodiment or implementation may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0025] It should be noted that the terminology in the specification, claims, and accompanying drawings of this application is for describing specific embodiments only and is not intended to limit this application. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. The term "and / or" as used in this application refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations.
[0026] Please see Figure 1 , Figure 1 This is a cross-sectional view of the pulping equipment 100 provided in this embodiment. The pulping equipment 100 is used to disperse liquid slurry to ensure that the components in the slurry are evenly distributed. The slurry can be a battery slurry, a food slurry, a pharmaceutical slurry, a fertilizer slurry, etc. Exemplarily, this embodiment uses a battery slurry as an example to describe the structure of the pulping equipment 100. The battery slurry can be a positive electrode slurry or a negative electrode slurry.
[0027] In the embodiments of this application, for the purpose of clearer description, Figure 1 For reference, in this application, the X-axis is defined as the axial direction of the circulation tank 10, and the Y-axis is defined as the radial direction of the circulation tank 10. The axial direction X of the circulation tank 10 is perpendicular to the radial direction Y of the circulation tank 10. The circumferential direction of the circulation tank 10 is the direction surrounding the central axis of the circulation tank 10, that is, the direction surrounding the axial direction X of the circulation tank 10. The plane containing the circumferential direction of the circulation tank 10 is perpendicular to the axial direction of the circulation tank 10.
[0028] The pulping equipment 100 includes a circulation tank 10, a guide tube 20, and a dispersion structure 40. The circulation tank 10 is used to contain pulp. The circulation tank 10 includes a bottom wall 12 and a side wall 11 connected to the bottom wall 12. The extension direction of the side wall 11 is different from the extension direction of the bottom wall 12. The side wall 11 extends along the axial direction X of the circulation tank 10. The bottom wall 12 extends along the radial direction Y of the circulation tank 10. A first temperature regulating cavity 31 is provided on the side wall 11 and / or the bottom wall 12. Exemplarily, in this embodiment, the first temperature regulating cavity 31 is provided on the side wall 11. The side of the side wall 11 facing away from the interior of the circulation tank 10 is provided with an outer cover 13, which is spaced apart from the side wall 11 and encloses the first temperature regulating cavity 31. In some embodiments, a first temperature-regulating cavity 31 is provided on the bottom wall 12, and an outer cover 13 is provided on the side of the bottom wall 12 away from the interior of the circulation tank 10. The outer cover 13 is spaced apart from the bottom wall 12 and encloses the first temperature-regulating cavity 31. In some embodiments, the first temperature-regulating cavity 31 may be provided on the side wall 11 and the bottom wall 12 respectively, and two outer covers 13 are provided. One outer cover 13 is provided on the side of the side wall 11 away from the interior of the circulation tank 10 and encloses the side wall 11 to form the first temperature-regulating cavity 31. The other outer cover 13 is provided on the side of the bottom wall 12 away from the interior of the circulation tank 10 and encloses the bottom wall 12 to form the first temperature-regulating cavity 31.
[0029] A flow guide tube 20 is disposed inside the circulation tank 10. The flow guide tube 20 includes a side plate 21, a bottom plate 22, and a flow guide plate 23. The bottom plate 22 is disposed opposite to the bottom wall 12 and together with the bottom wall 12 forms a first flow channel 201. The side plate 21 is connected to the bottom plate 22. The side plate 21 is disposed opposite to the side wall 11 and together with the side wall 11 forms a second flow channel 202. The second flow channel 202 communicates with the first flow channel 201. One end of the flow guide plate 23 is connected to the side of the side plate 21 away from the side wall 11, and the other end of the flow guide plate 23 is connected to the side of the bottom plate 22 away from the bottom wall 12. One end of the flow guide plate 23 is connected to the side plate 21 and spaced apart from the bottom plate 22, and the other end of the flow guide plate 23 is connected to the bottom plate 22 and spaced apart from the side plate 21. The side plate 21, the bottom plate 22, and the flow guide plate 23 together form a second temperature regulating cavity 32. The flow guide plate 23 is arranged in a ring shape. The guide plate 23 encloses and forms a receiving cavity 203. The dispersion structure 40 is at least partially located between the bottom plate 22 and the bottom wall 12. The dispersion structure 40 is used to circulate the slurry between the receiving cavity 203, the first flow channel 201 and the second flow channel 202, and to disperse the slurry.
[0030] In this embodiment, on the one hand, the first temperature regulating chamber 31 can regulate the temperature of the slurry near the side wall 11 and / or bottom wall 12 in the circulation tank 10, and the second temperature regulating chamber 32 can regulate the temperature of the slurry near the center of the circulation tank 10. Thus, the first temperature regulating chamber 31 and the second temperature regulating chamber 32 work together to regulate the temperature of the slurry, improving the temperature regulation efficiency of the pulping equipment 100, improving the temperature consistency of the slurry in the circulation tank 10, keeping the slurry within a suitable temperature range, and thus improving the quality of the slurry. On the other hand, the dispersion structure 40 is set in the circulation tank 10 and is used to disperse and circulate the slurry inside the circulation tank 10, simplifying the structure of the pulping equipment 100, making the structure of the pulping equipment 100 more compact, reducing manufacturing costs, and eliminating the need for additional pipes, thus reducing the difficulty of cleaning the pulping equipment 100.
[0031] In the process of dispersing battery slurry, friction between the slurry and the dispersion structure generates a significant amount of heat, leading to an increase in slurry temperature. Excessive slurry temperature negatively impacts slurry quality. Traditional slurry-making equipment relies on the outer wall of the tank for heat dissipation, resulting in low efficiency. Slurry near the center of the circulating tank cannot receive timely and effective cooling, easily leading to excessively high internal temperatures and uneven temperature distribution within the tank. In this embodiment, the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32 jointly dissipate heat from the slurry near the pipe wall and near the center of the circulating tank 10, improving heat dissipation efficiency and temperature uniformity, thereby enhancing slurry quality.
[0032] The guide vane 23 is arranged in an inverted cone shape. The receiving cavity 203 is arranged in an inverted frustum shape. The diameter of the end of the receiving cavity 203 near the bottom wall 12 is smaller than the diameter of the end of the receiving cavity 203 away from the bottom wall 12. The guide vane 23 may be arranged in an inverted cone shape. In some embodiments, the guide vane 23 may also be arranged in an inverted pyramidal shape.
[0033] The base plate 22 is provided with a connecting hole 221 that communicates with the receiving cavity 203. The dispersion structure 40 is disposed at the connecting hole 221 to draw in the slurry in the receiving cavity 203 through the connecting hole 221. In this embodiment, the side plate 21 and the base plate 22, the side plate 21 and the guide plate 23, and the base plate 22 and the guide plate 23 are respectively sealed and connected to prevent the slurry from entering the second temperature-regulating cavity 32, and to ensure that all the slurry in the receiving cavity 203 can enter the dispersion structure 40 through the connecting hole 221 when the dispersion structure 40 is dispersing, thereby improving the dispersion efficiency of the dispersion structure 40 and avoiding the appearance of undispersed slurry. When the dispersion structure 40 is dispersing, the slurry circulates along the path of "first flow channel 201 → second flow channel 202 → receiving cavity 203 → first flow channel 201".
[0034] It is understandable that at the corner where the slurry flows into the receiving cavity, i.e., at the connection between the side plate and the bottom plate, the flow rate of the slurry will be greatly reduced due to the obstruction of the side plate and the bottom plate, the slurry flow will be slow, or even stop, thus forming a flow dead zone in the receiving cavity. In this embodiment, one end of the guide plate 23 is connected to the side plate 21, and the other end of the guide plate 23 is connected to the bottom plate 22. Through the guidance and obstruction of the guide plate 23, the slurry cannot flow to the connection between the side plate 21 and the bottom plate 22, reducing or eliminating the flow dead zone (the area where the slurry flows slowly or stops) in the guide tube 20, thereby avoiding the accumulation of slurry in the receiving cavity 203, so that all the slurry in the receiving cavity 203 can flow through the dispersion structure 40, improving the dispersion quality of the slurry. The second temperature-regulating cavity 32 formed by the guide plate 23 enclosing the side plate 21 and the bottom plate 22 can also improve the space utilization of the guide tube 20 and reduce space waste.
[0035] In this embodiment, the connection between the guide plate 23 and the side plate 21 is located at the end of the side plate 21 away from the bottom plate 22, and the connection between the other end of the guide plate 23 and the bottom plate 22 is located at the position of the hole wall of the connecting hole 221. In this way, the guide plate 23 can completely block the slurry from reaching the connection position between the side plate 21 and the bottom plate 22, so that the second temperature regulating cavity 32 completely fills the flow dead zone in the guide tube 20, thereby eliminating the slurry flow dead zone in the guide tube 20, allowing the slurry to circulate fully between the circulation tank 10 and the guide tube 20, and improving the slurry circulation efficiency.
[0036] Please refer to the following: Figure 1 and Figure 2 , Figure 2This is a cross-sectional view of the flow guide tube 20 provided in some embodiments of this application. In some embodiments, the connection between the flow guide plate 23 and the side plate 21 is spaced apart from the end of the side plate 21 away from the bottom plate 22, and the connection between the flow guide plate 23 and the bottom plate 22 is spaced apart from the wall of the connecting hole 221. The distance between the connection between the flow guide plate 23 and the side plate 21 and the end of the side plate 21 away from the bottom plate 22, and the distance between the connection between the flow guide plate 23 and the bottom plate 22 and the wall of the connecting hole 221, can be specifically set according to experimental or simulation results, as long as it can reduce or eliminate the flow dead zone in the receiving cavity 203. In some embodiments, the connection between the flow guide plate 23 and the side plate 21 is spaced apart from the end of the side plate 21 away from the bottom plate 22, and the connection between the flow guide plate 23 and the bottom plate 22 is located at the wall of the connecting hole 221. In some embodiments, the connection between the guide plate 23 and the side plate 21 is located at the end of the side plate 21 away from the bottom plate 22, and the connection between the other end of the guide plate 23 and the bottom plate 22 is spaced apart from the wall of the connecting hole 221.
[0037] At least one of the first temperature-regulating cavity 31 and the second temperature-regulating cavity 32 is provided with a heat-conducting medium; alternatively, the pulping equipment 100 further includes a heat pipe disposed within at least one of the first temperature-regulating cavity 31 and the second temperature-regulating cavity 32. Exemplarily, in this embodiment, both the first temperature-regulating cavity 31 and the second temperature-regulating cavity 32 are provided with a heat-conducting medium. The pulping equipment 100 heats or cools the pulp by introducing the heat-conducting medium into the first temperature-regulating cavity 31 and the second temperature-regulating cavity 32, thereby conducting heat through the heat-conducting medium.
[0038] The pulping equipment 100 may further include a pumping component. The pumping component is located outside the circulation tank 10. The pumping component is used to extract and pump the heat transfer medium, causing the heat transfer medium to circulate between the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32. In this way, the pumping component actively circulates the heat transfer medium within the first and second temperature-regulating chambers 31 and 32. By adjusting the temperature and circulation speed of the heat transfer medium, the heat dissipation efficiency of the pulp can be adjusted to meet the heat dissipation requirements of the pulp at different dispersion stages, improving the accuracy of temperature regulation, improving temperature consistency, and improving pulp quality. In some embodiments, two pumping components may be provided, with each pumping independently pumping the heat transfer medium into the first and second temperature-regulating chambers 31 and 32 to more finely regulate the temperature of the first and second temperature-regulating chambers 31 and 32, thereby more finely regulating the temperature of the pulp. In some embodiments, a single pumping component may also be provided to simplify the structure of the pulping equipment 100 and reduce its manufacturing cost.
[0039] In some embodiments, a heat-conducting medium is provided in the first temperature-regulating cavity 31, and a heat pipe is provided in the second temperature-regulating cavity 32. The heat pipe has capillary channels. The refrigerant in the capillary channels vaporizes after absorbing heat and flows to the cooling end of the heat pipe. After dissipating heat, the gaseous refrigerant condenses into liquid refrigerant. Due to capillary action, the condensed liquid refrigerant spontaneously flows along the capillary channels to the heating end, thus circulating the refrigerant within the heat pipe. One end of the heat pipe is located inside the second temperature-regulating cavity 32, and the other end extends to the outside of the circulation tank 10. Heating or cooling the portion of the heat pipe outside the circulation tank 10 can heat or cool the second temperature-regulating cavity 32, thereby heating or cooling the slurry. The heat pipe in the second temperature-regulating cavity 32 automatically regulates the temperature of the cavity, eliminating the need for additional pumping components, thus reducing the power consumption of the pulping equipment 100 and lowering its operating costs.
[0040] In some embodiments, a heat pipe is disposed in the first temperature-regulating cavity 31, and a heat-conducting medium is disposed in the second temperature-regulating cavity 32. In some embodiments, heat pipes are disposed in both the first temperature-regulating cavity 31 and the second temperature-regulating cavity 32.
[0041] A first flow channel plate 311 is provided in the first temperature regulating cavity 31, which is used to divide the first temperature regulating cavity 31 to form a first temperature regulating flow channel 312; and / or, a second flow channel plate 321 is provided in the second temperature regulating cavity 32, which is used to divide the second temperature regulating cavity 32 to form a second temperature regulating flow channel 322. The first temperature regulating flow channel 312 extends spirally or in a labyrinthine manner along the circumferential direction of the circulation tank 10; and / or, the second temperature regulating flow channel 322 extends spirally or in a labyrinthine manner along the circumferential direction of the circulation tank 10.
[0042] In some embodiments, a first flow channel plate 311 is provided in the first temperature-regulating cavity 31, which is used to divide the first temperature-regulating cavity 31 to form a first temperature-regulating flow channel 312. The first flow channel plate 311 guides the heat-conducting medium to flow in a predetermined direction within the first temperature-regulating cavity 31, allowing the medium to flow through all locations within the cavity and preventing it from accumulating in localized dead zones, thus improving the temperature regulation effect on the slurry. In some embodiments, the first flow channel plate 311 may be spirally extended, and the first temperature-regulating flow channel 312 may extend spirally along the circumferential direction of the circulation tank 10. This reduces the tortuosity of the first temperature-regulating flow channel 312, decreases the obstruction effect of the first flow channel plate 311 on the heat-conducting medium, increases the flow rate of the heat-conducting medium in the first temperature-regulating flow channel 312, and improves the heat exchange efficiency with the slurry. In some embodiments, the first flow channel plate 311 may extend in a labyrinthine shape, and the first temperature-regulating flow channel 312 may also extend in a labyrinthine shape along the circumferential direction of the circulation tank 10 to increase the wall area of the first temperature-regulating flow channel 312, thereby improving the heat exchange efficiency between the heat-conducting medium or heat pipe and the slurry in the first temperature-regulating flow channel 312. When the first temperature-regulating flow channel 312 extends in a labyrinthine shape, the extension direction of the first temperature-regulating flow channel 312 alternates in a square wave pattern, and the first temperature-regulating flow channel 312 extends in a tortuous manner.
[0043] In some embodiments, a second flow channel plate 321 is provided in the second temperature-regulating cavity 32, which is used to divide the second temperature-regulating cavity 32 to form a second temperature-regulating flow channel 322. The second flow channel plate 321 guides the heat-conducting medium to flow in a predetermined direction within the second temperature-regulating cavity 32, allowing the medium to flow through all locations within the cavity and preventing it from accumulating in localized dead zones, thus improving the temperature regulation effect on the slurry. In some embodiments, the second flow channel plate 321 may be spirally extended, and the second temperature-regulating flow channel 322 may extend spirally along the circumferential direction of the circulation tank 10. This reduces the tortuosity of the flow channel 322, decreases the obstruction effect of the flow channel plate 321 on the heat-conducting medium, increases the flow rate of the heat-conducting medium in the flow channel 322, and improves the heat exchange efficiency with the slurry. In some embodiments, the second flow channel plate 321 may extend in a labyrinthine shape, and the second temperature-regulating flow channel 322 may extend in a labyrinthine shape along the circumferential direction of the circulation tank 10 to increase the wall area of the second temperature-regulating flow channel 322, thereby improving the heat exchange efficiency between the heat-conducting medium or heat pipe and the slurry in the second temperature-regulating flow channel 322. When the second temperature-regulating flow channel 322 extends in a labyrinthine shape, the extension direction of the first temperature-regulating flow channel 312 alternates in a square wave pattern, and the first temperature-regulating flow channel 312 extends in a tortuous manner.
[0044] In some embodiments, a first flow channel plate 311 is provided in the first temperature regulating cavity 31, which is used to divide the first temperature regulating cavity 31 to form a first temperature regulating flow channel 312, and a second flow channel plate 321 is provided in the second temperature regulating cavity 32, which is used to divide the second temperature regulating cavity 32 to form a second temperature regulating flow channel 322. The first temperature regulating flow channel 312 may extend spirally or in a labyrinthine manner along the circumferential direction of the circulation tank 10, and the second temperature regulating flow channel 322 may extend spirally or in a labyrinthine manner along the circumferential direction of the circulation tank 10.
[0045] Please see Figure 1 In this embodiment, the guide plate 23 is arranged in an inverted cone shape. In a cross-sectional plane passing through or parallel to the central axis of the circulation tank 10, the cross-section of the second temperature-regulating cavity 32 has a shape that is smaller at the top and larger at the bottom. Along the radial direction parallel to the circulation tank 10, the width of the cross-section of the second temperature-regulating cavity 32 near the bottom plate 22 is greater than the width of the cross-section of the second temperature-regulating cavity 32 away from the bottom plate 22. The cross-sectional area of the second temperature-regulating channel 322 near the bottom plate 22 is greater than the cross-sectional area of the second temperature-regulating channel 322 away from the bottom plate 22. The flow velocity of the slurry at the position with the larger cross-sectional area in the second temperature-regulating channel 322 is less than the flow velocity at the position with the smaller cross-sectional area in the second temperature-regulating channel 322.
[0046] Please see Figure 3 , Figure 3 This is a cross-sectional view of the guide tube 20 provided in other embodiments of this application. In some embodiments, a baffle 24 is provided in the second temperature regulating cavity 32. The shape of the cross-section of the baffle 24 is similar to the shape of the cross-section of the second temperature regulating cavity 32. The baffle 24 is located at the center of the inscribed circle of the cross-section of the second temperature regulating cavity 32. Where the second temperature regulating flow channel 322 corresponds to a position with low flow velocity, the heat exchange time between the heat-conducting medium and the slurry will be prolonged. After the heat-conducting medium absorbs or releases heat for a long time, the temperature difference between the slurry and the heat-conducting medium will decrease, thereby reducing the heat exchange efficiency between the heat-conducting medium and the slurry. In this embodiment, by setting a baffle 24 in the second temperature regulating cavity 32, and setting the distance between the surface of the baffle 24 and the side plate 21, the bottom plate 22, and the guide plate 23 to be the same, the difference in cross-sectional area at various locations of the second temperature regulating channel 322 is reduced. Through the blocking effect of the baffle 24, the flow rate of the heat-conducting medium near the bottom plate 22 of the second temperature regulating channel 322 is increased, thereby reducing the difference in flow rate of the heat-conducting medium at different locations in the second temperature regulating channel 322. This ensures that there is a sufficient temperature difference between various locations in the second temperature regulating cavity 32 and the slurry, thereby improving the heat exchange efficiency between various locations in the second temperature regulating cavity 32 and the slurry, and thus improving the temperature regulation efficiency of the slurry by the pulping equipment 100.
[0047] The inscribed circle of the cross-section of the second temperature-regulating cavity 32 is tangent to the sides of the side plate 21, the bottom plate 22, and the guide plate 23 facing the second temperature-regulating cavity 32, respectively. The cross-sectional shape of the second temperature-regulating cavity 32 can be two symmetrically arranged triangles. The cross-sectional shape of the baffle 24 is correspondingly set as two symmetrical triangles. The connection between the side plate 21 and the bottom plate 22 can be rounded. The cross-section of the baffle 24 has rounded corners at corresponding right angles so that the shape of the cross-section of the baffle 24 is similar to the shape of the cross-section of the second temperature-regulating cavity 32.
[0048] Please see Figure 4 , Figure 4 This is a cross-sectional view of a pulping apparatus 100 provided in some embodiments of this application. The circulating tank 10 is provided with a first inlet 3101 and a first outlet 3102, which are respectively connected to a first temperature regulating chamber 31. The first inlet 3101 is located on the side of the first outlet 3102 away from the bottom wall 12. And / or, the guide tube 20 is provided with a second inlet 3201 and a second outlet 3202, which are respectively connected to a second temperature regulating chamber 32. The second inlet 3201 is located on the side of the second outlet 3202 away from the bottom wall 12.
[0049] In this embodiment, the first inlet 3101 is located on the side of the first outlet 3102 away from the bottom wall 12, and the second inlet 3201 is located on the side of the second outlet 3202 away from the bottom wall 12. Thus, the flow direction of the heat-conducting medium in the first temperature-regulating cavity 31 and the second temperature-regulating cavity 32 is opposite to the flow direction of the slurry in the second flow channel 202, increasing the velocity difference between the heat-conducting medium and the slurry, which is beneficial for improving the heat exchange efficiency between the slurry and the heat-conducting medium, thereby improving the efficiency of the pulping equipment 100 in regulating the temperature of the slurry. In some embodiments, the first inlet 3101 can also be located on the side of the first outlet 3102 closer to the bottom wall 12, making the structural design of the pulping equipment 100 more flexible and avoiding structural interference. In some embodiments, the second inlet 3201 can also be located on the side of the second outlet 3202 away from the bottom wall 12, making the structural design of the pulping equipment 100 more flexible and avoiding structural interference.
[0050] The first liquid inlet 3101 and the first liquid outlet 3102 are respectively disposed on the outer cover 13. The second liquid inlet 3201 and the second liquid outlet 3202 are respectively disposed on the side plate 21. The first liquid inlet 3101, the first liquid outlet 3102, the second liquid inlet 3201, and the second liquid outlet 3202 can each be one or more. In some embodiments, the second liquid inlet 3201 and the second liquid outlet 3202 can also be disposed on the bottom plate 22.
[0051] Along the axial direction X of the circulating tank 10, the first liquid inlet 3101 and the first liquid outlet 3102 can be staggered, and the second liquid inlet 3201 and the second liquid outlet 3202 can be staggered to avoid interference between the inflow and outflow pipes of the heat transfer medium, so as to make the structural layout of each part of the pulping equipment 100 reasonable.
[0052] The pulping equipment 100 also includes a first connecting pipe 341, and a first connecting hole 3103 is provided on the inner wall of the circulation tank 10. The first connecting hole 3103 is connected to the first temperature regulating chamber 31, and the first connecting pipe 341 is connected to the first connecting hole 3103 and the second liquid inlet 3201. And / or, the pulping equipment 100 also includes a second connecting pipe 342, and a second connecting hole 3104 is provided on the inner wall of the circulation tank 10. The second connecting hole 3104 is connected to the first temperature regulating chamber 31, and the second connecting pipe 342 is connected to the second connecting hole 3104 and the second liquid outlet 3202.
[0053] In some embodiments, the pulping equipment 100 includes a first connecting pipe 341, and a first connecting hole 3103 is provided on the inner wall of the circulation tank 10. The first connecting pipe 341 connects the first connecting hole 3103 and the second inlet 3201. Thus, the pumping component can simultaneously pump the heat transfer medium into the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32 through a single inflow pipe, reducing the number of inflow pipes and simplifying the structure of the pulping equipment 100. The pumping component pumps the heat transfer medium into the first inlet 3101 through the inflow pipe, allowing the heat transfer medium to enter the first temperature-regulating chamber 31. The heat transfer medium in the first temperature-regulating chamber 31 then enters the second temperature-regulating chamber 32 through the first connecting hole 3103, the first connecting pipe 341, and the second inlet 3201.
[0054] In some embodiments, the pulping equipment 100 includes a second connecting pipe 342, and a second connecting hole 3104 is provided on the inner wall of the circulation tank 10. The second connecting pipe 342 connects the second connecting hole 3104 and the second outlet 3202. In this way, the pulping equipment 100 can simultaneously discharge the heat-conducting medium in the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32 through a single outlet pipe, reducing the number of outlet pipes and simplifying the structure of the pulping equipment 100.
[0055] In some embodiments, the pulping equipment 100 includes a first connecting pipe 341 and a second connecting pipe 342. A first connecting hole 3103 and a second connecting hole 3104 are provided on the inner wall of the circulation tank 10. The first connecting hole 3103 and the second connecting hole 3104 are respectively connected to a first temperature-regulating chamber 31. The first connecting pipe 341 connects to the first connecting hole 3103 and the second liquid inlet 3201. The second connecting pipe 342 connects to the second connecting hole 3104 and the second liquid outlet 3202. Thus, the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32 are connected through the first connecting pipe 341 and the second connecting pipe 342. The pulping equipment 100 can be equipped with only one pumping component. The pumping component simultaneously pumps the heat-conducting medium into the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32 through an inflow pipe, and discharges the heat-conducting medium from the first temperature-regulating chamber 31 and the second temperature-regulating chamber 32 through an outflow pipe, reducing the number of inflow and outflow pipes and simplifying the structure of the pulping equipment 100.
[0056] Please refer to 1 and 2 together. Figure 5 , Figure 5 This is a schematic diagram of the structure of the guide tube 20 provided in some embodiments of this application. At least one of the following is provided with heat-conducting fins 35: the side of the bottom wall 12 near the bottom plate 22, the side of the side wall 11 near the side plate 21, the side of the bottom plate 22 near the bottom wall 12, and the side of the side plate 21 near the side wall 11. The heat-conducting fins 35 can increase the contact area with the slurry, thereby improving heat exchange efficiency, temperature regulation efficiency and accuracy, and improving the temperature consistency of the slurry.
[0057] Multiple heat-conducting fins 35 can be configured, and these multiple heat-conducting fins 35 are arranged at intervals along the circumferential direction of the circulation tank 10. The multiple heat-conducting fins 35 are evenly spaced along the circumferential direction of the circulation tank 10 to improve the temperature uniformity in the circumferential direction of the circulation tank 10. The number of heat-conducting fins 35 can be specifically set according to actual needs, and this application does not impose a specific limitation.
[0058] In some embodiments, the heat-conducting fins 35 extend linearly along the axial direction X parallel to the circulation tank 10 to reduce the obstruction effect of the heat-conducting fins 35 on the slurry in the first flow channel 201 and / or the second flow channel 202, thereby reducing the slurry flow rate loss. In some embodiments, the heat-conducting fins 35 may extend spirally along the circumferential direction of the circulation tank 10, with the spiral direction of the heat-conducting fins 35 being the same as the rotation direction of the rotor 42. When the dispersion structure 40 discharges the slurry, the circumferential rotation of the rotor 42 will cause the slurry to rotate along the circumferential direction of the circulation tank 10. The spiral extension of the heat-conducting fins 35, with the spiral direction being the same as the rotation direction of the rotor 42, allows the extension direction of the heat-conducting fins 35 to be the same as the flow direction of the slurry, thereby reducing the obstruction of the slurry by the heat-conducting fins 35 and reducing the slurry flow rate loss.
[0059] The heat-conducting fins 35 can be configured as helical protrusions and / or helical grooves. Specifically, the heat-conducting fins 35 can be configured as helical protrusions. Helical protrusions can also improve the structural strength of the flow guide 20 and / or the circulation tank 10, preventing deformation of the flow guide 20 and / or the circulation tank 10. In some embodiments, the heat-conducting fins 35 can be configured as helical grooves. In some embodiments, the heat-conducting fins 35 can be configured as a combination of helical protrusions and helical grooves; for example, multiple heat-conducting fins 35 may be included, with some heat-conducting fins 35 configured as helical protrusions and others as helical grooves.
[0060] In some embodiments, a heat-conducting fin 35 is provided on the side of the bottom wall 12 near the bottom plate 22, and the heat-conducting fin 35 is located within the first flow channel 201. In some embodiments, a heat-conducting fin 35 is provided on one side of the bottom wall 12 of the bottom plate 22, and the heat-conducting fin 35 is located within the first flow channel 201. In some embodiments, a heat-conducting fin 35 is provided on the side of the side wall 11 near the side plate 21, and the heat-conducting fin 35 is located within the second flow channel 202. In some embodiments, a heat-conducting fin 35 is provided on the side of the side plate 21 near the side wall 11, and the heat-conducting fin 35 is located within the second flow channel 202.
[0061] The dispersion structure 40 includes a stator 41, a rotor 42, and a rotating shaft 43. The stator 41 is fixedly disposed relative to the guide tube 20 and the circulation tank 10. The rotor 42 is fixedly connected to the rotating shaft 43 and is rotatably disposed relative to the circulation tank 10. The stator 41 can be fixedly connected to the base plate 22. The stator 41 is disposed on the side of the base plate 22 facing the bottom wall 12, or the stator 41 is fixed to the wall of the connecting hole 221. The stator 41 is provided with a stator retaining ring extending in the circumferential direction of the circulation tank 10. The stator retaining ring is one layer, or multiple layers, with each layer having a different diameter, and the larger diameter stator retaining ring fitting outside the smaller diameter stator retaining ring. The stator retaining ring is provided with a stator groove penetrating in the radial direction Y of the circulation tank 10. The rotating shaft 43 is provided with a rotor retaining ring extending in the circumferential direction of the circulation tank 10. The rotor retaining rings can be configured as a single layer, or multiple layers, with each layer having a different diameter. Larger diameter rotor retaining rings are fitted over smaller diameter rotor retaining rings. The rotor retaining rings have rotor slots that extend along the radial direction Y of the circulation tank 10. The stator retaining rings and rotor retaining rings are arranged alternately along the radial direction Y of the circulation tank 10. When the rotating shaft 43 drives the rotor 42 to rotate, a negative pressure is generated between the stator 41 and the rotor 42, causing the slurry to be drawn from the receiving cavity 203 through the connecting hole 221 between the stator retaining ring and the rotor retaining ring. The rotor retaining ring drives the slurry to rotate. Under centrifugal force, the slurry passes through the stator slot and the rotor slot. The slurry flows between the stator 41 and the rotor 42. The stator retaining ring and the rotor retaining ring shear the slurry, causing the slurry to be dispersed. The dispersed slurry is discharged into the first flow channel 201 and the second flow channel 202, and returns to the receiving cavity 203 after passing through the second flow channel 202, thereby realizing the circulation of the slurry in the circulation tank 10.
[0062] In some embodiments, the pulping apparatus 100 further includes a driver. The driver is kinetically connected to the rotating shaft 43 and is used to drive the rotating shaft 43 to rotate. The driver may be located on the side of the bottom wall 12 of the circulation tank 10 away from the side wall 11, i.e., at the bottom of the circulation tank 10. A clearance hole is provided on the bottom wall 12, and the rotating shaft 43 passes through the clearance hole. A sealing arrangement is provided between the rotating shaft 43 and the clearance hole to prevent pulp leakage.
[0063] The above are merely specific embodiments of this application, but the scope of protection of this 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 these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A pulping plant (100) characterized in that, include: A circulation tank (10) is used to contain slurry. The circulation tank (10) includes a bottom wall (12) and a side wall (11) connected to the bottom wall (12). The extension direction of the side wall (11) is different from the extension direction of the bottom wall (12). A first temperature regulating cavity (31) is provided on the side wall (11) and / or the bottom wall (12). A flow guide tube (20) is disposed inside the circulation tank (10). The flow guide tube (20) includes a side plate (21), a bottom plate (22), and a flow guide plate (23). The bottom plate (22) is disposed opposite to the bottom wall (12) and forms a first flow channel (201) with the bottom wall (12). The side plate (21) is connected to the bottom plate (22). The side plate (21) is disposed opposite to the side wall (11) and forms a second flow channel (202) with the side wall (11). The channel (202) is connected to the first flow channel (201). One end of the guide plate (23) is connected to the side plate (21) and spaced apart from the bottom plate (22). The other end of the guide plate (23) is connected to the bottom plate (22) and spaced apart from the side plate (21). The side plate (21), the bottom plate (22) and the guide plate (23) enclose to form a second temperature regulating cavity (32). The guide plate (23) is arranged in a ring and encloses to form a receiving cavity (203). A dispersion structure (40), at least partially located between the bottom plate (22) and the bottom wall (12), is used to circulate the slurry between the receiving cavity (203), the first flow channel (201) and the second flow channel (202) and to disperse the slurry.
2. The pulping apparatus (100) according to claim 1, characterized in that The guide plate (23) is arranged in an inverted cone shape.
3. The pulping arrangement (100) according to claim 1 or 2, characterized in that, The base plate (22) is provided with a connecting hole (221) communicating with the receiving cavity (203). The dispersing structure (40) is provided at the connecting hole (221). The connection between the guide plate (23) and the side plate (21) is located at the end of the side plate (21) away from the base plate (22). The connection between the other end of the guide plate (23) and the base plate (22) is located at the position of the hole wall of the connecting hole (221).
4. The pulping apparatus (100) according to claim 1, characterized in that At least one of the first temperature-regulating cavity (31) and the second temperature-regulating cavity (32) is provided with a heat-conducting medium, or the pulping equipment (100) further includes a heat pipe disposed in at least one of the first temperature-regulating cavity (31) and the second temperature-regulating cavity (32).
5. The pulping apparatus (100) according to claim 1, characterized in that The first temperature regulating cavity (31) is provided with a first flow channel plate (311), which is used to divide the first temperature regulating cavity (31) to form a first temperature regulating flow channel (312); and / or, the second temperature regulating cavity (32) is provided with a second flow channel plate (321), which is used to divide the second temperature regulating cavity (32) to form a second temperature regulating flow channel (322).
6. The pulping apparatus (100) according to claim 5, characterized in that The first temperature adjusting flow channel (312) extends spirally or in a labyrinth shape along the circumferential direction of the circulating tank (10), and / or the second temperature adjusting flow channel (322) extends spirally or in a labyrinth shape along the circumferential direction of the circulating tank (10).
7. The pulping apparatus (100) according to claim 1, characterized in that The guide plate (23) is arranged in an inverted conical shape, the second temperature adjusting cavity (32) is provided with a stop block (24), the shape of the cross section of the stop block (24) is similar to the shape of the cross section of the second temperature adjusting cavity (32), and the stop block (24) is arranged at the center of the inscribed circle of the cross section of the second temperature adjusting cavity (32).
8. The pulping apparatus (100) according to claim 1, characterized in that The circulating tank (10) is provided with a first liquid inlet (3101) and a first liquid outlet (3102), the first liquid inlet (3101) and the first liquid outlet (3102) are respectively connected to the first temperature adjusting cavity (31), the first liquid inlet (3101) is located on the side of the first liquid outlet (3102) away from the bottom wall (12), and / or the guide cylinder (20) is provided with a second liquid inlet (3201) and a second liquid outlet (3202), the second liquid inlet (3201) and the second liquid outlet (3202) are respectively connected to the second temperature adjusting cavity (32), and the second liquid inlet (3201) is located on the side of the second liquid outlet (3202) away from the bottom wall (12).
9. The pulping apparatus (100) according to claim 1, characterized in that The circulating tank (10) is provided with a first liquid inlet (3101) and a first liquid outlet (3102), the first liquid inlet (3101) and the first liquid outlet (3102) are respectively connected to the first temperature adjusting cavity (31), the guide cylinder (20) is provided with a second liquid inlet (3201) and a second liquid outlet (3202), the second liquid inlet (3201) and the second liquid outlet (3202) are respectively connected to the second temperature adjusting cavity (32), the pulping equipment (100) further comprises a first connecting pipe (341), a first connecting hole (3103) is arranged on the inner wall of the circulating tank (10), the first connecting hole (3103) is connected to the first temperature adjusting cavity (31), the first connecting pipe (341) connects the first connecting hole (3103) and the second liquid inlet (3201), and / or the pulping equipment (100) further comprises a second connecting pipe (342), a second connecting hole (3104) is arranged on the inner wall of the circulating tank (10), the second connecting hole (3104) is connected to the first temperature adjusting cavity (31), and the second connecting pipe (342) connects the second connecting hole (3104) and the second liquid outlet (3202).
10. The pulping apparatus (100) according to claim 1, characterized in that At least one of the side of the bottom wall (12) close to the bottom plate (22), the side of the side wall (11) close to the side plate (21), the side of the bottom plate (22) close to the bottom wall (12), and the side of the side plate (21) close to the side wall (11) is provided with a heat conduction fin (35).