Pulping equipment

Abstract

The invention provides pulping equipment. The pulping equipment comprises a circulating tank, a sleeve, a dispersing device and a guide cylinder, an accommodating cavity for accommodating slurry is formed in the circulating tank. The sleeve is arranged on the top of the circulating tank and extends into the containing cavity. The dispersing device is installed at the end, close to the bottom wall of the circulating tank, of the sleeve, an inflow port is formed in the side, close to the bottom wall of the circulating tank, of the dispersing device and communicates with the containing cavity, and an outflow port communicating with the inflow port is formed in the side wall of the dispersing device. The guide cylinder is connected with the dispersing device, the inner wall of the guide cylinder and the outer wall of the sleeve form a guide channel, one end, close to the top of the circulating tank, of the guide channel is communicated with the accommodating cavity, and the end, close to the bottom wall of the circulating tank, of the guide channel is communicated with the outlet. Therefore, the slurry is dispersed and circulated in the circulating tank, so that the circulating path of the slurry between the dispersing device and the circulating tank is greatly shortened, the circulating efficiency of the slurry is effectively improved, and the circulating time of the slurry is shortened.

Description

Technical Field

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

[0002] In the related art, the circulation tank and the dispersion device in the pulping equipment are connected together through a connecting pipeline. The slurry circulates between the circulation tank and the dispersion device through the connecting pipeline, and the circulation path of the slurry is long and the circulation efficiency is low. Summary of the invention

[0003] The present application provides a pulping device to solve the problem of long circulation path and low circulation efficiency of pulp.

[0004] The present application provides a pulping device, which includes a circulation tank, a sleeve, a dispersion device and a guide tube. A receiving chamber for receiving slurry is provided in the circulation tank. The sleeve is provided at the top of the circulation tank and extends into the receiving chamber. The dispersion device is installed at the end of the sleeve close to the bottom wall of the circulation tank, and an inlet is provided on the side of the dispersion device close to the bottom wall of the circulation tank, and the inlet is connected to the receiving chamber, and the side wall of the dispersion device is provided with an outlet connected to the inlet. The guide tube is connected to the dispersion device, and the inner wall of the guide tube and the outer wall of the sleeve form a guide channel, and one end of the guide channel close to the top of the circulation tank is connected to the receiving chamber, and the end of the guide channel close to the bottom wall of the circulation tank is connected to the outlet.

[0005] In some embodiments, a cross-sectional area of ​​the guide channel near the top of the circulation tank is greater than or equal to a cross-sectional area near the bottom of the circulation tank.

[0006] In some embodiments, the sleeve extends along the axial direction of the circulation tank, the dispersion device includes a first dispersion member and a second dispersion member, the second dispersion member and the first dispersion member can rotate relative to each other, the end of the sleeve close to the bottom of the circulation tank is connected to the second dispersion member, and the end of the guide tube close to the bottom of the circulation tank is connected to the first dispersion member.

[0007] In some embodiments, the guide channel includes a first flow channel and a second flow channel connected to the first flow channel, the guide tube includes a side plate and a bottom plate connected to the end of the side plate near the bottom of the circulation tank, the side plate extends along the axial direction of the circulation tank, the first flow channel is formed between the side plate and the side wall of the sleeve, the bottom plate extends along the radial direction of the circulation tank, the first flow channel is connected to the accommodating cavity, the bottom plate is connected to the first dispersion member, the bottom plate and the end surface of the sleeve near the bottom of the circulation tank form the second flow channel, and the end of the second flow channel away from the first flow channel is connected to the outflow outlet.

[0008] In some embodiments, the pulping equipment further comprises a driving shaft, wherein the driving shaft is inserted into the sleeve, and an end of the driving shaft close to the bottom of the circulation tank is connected to the dispersion device.

[0009] In some embodiments, an end of the guide tube away from the bottom of the circulation tank is inclined or bent in a direction away from the sleeve.

[0010] In some embodiments, the dispersion device includes a first dispersion member and a second dispersion member, the second dispersion member is rotatably arranged relative to the first dispersion member, the first dispersion member includes a first disk body and at least one first retaining ring, the first disk body is fixedly connected to the guide tube, the first disk body is provided with the inlet, the first retaining ring is arranged on the side of the first disk body close to the second dispersion member, and the first retaining ring is provided with a first dispersion groove; the second dispersion member includes a second disk body and at least one second retaining ring, the second disk body is fixed relative to the sleeve, the second retaining ring is arranged on the side of the second disk body close to the first dispersion member, and the second retaining ring is provided with a second dispersion groove, the first retaining ring is located on the inner side and / or outer side of the second retaining ring, and the first dispersion groove or the second dispersion groove located on the outermost side of the dispersion device is configured as the outflow port.

[0011] In some embodiments, the dispersing device further includes a pusher blade, which is disposed on the first disk body or the second disk body, and is used to push the slurry along a radial direction of the dispersing device.

[0012] In some embodiments, the guide tube is rotatable relative to the circulation tank, and / or the sleeve is rotatable relative to the circulation tank.

[0013] In some embodiments, the pulping equipment also includes a baffle, which is arranged on the sleeve and is located on the side of the guide tube away from the bottom of the circulation tank. On a plane perpendicular to the central axis of the sleeve, the orthographic projection of the baffle at least partially covers the outlet of the guide channel close to the top side of the circulation tank.

[0014] In some embodiments, along the radial direction of the circulation tank, a first distance between the cylinder wall of the guide cylinder and the bottom of the circulation tank is greater than or equal to a second distance between the cylinder wall of the guide cylinder and the cylinder wall of the sleeve.

[0015] In some embodiments, the ratio of the first distance to the second distance is: 1-10.

[0016] In some embodiments, the ratio of the distance between the opening of the diversion channel on one side close to the top of the circulation tank and the bottom of the circulation tank to the distance between the liquid surface of the slurry and the bottom of the circulation tank is: 0.8-3.

[0017] In some embodiments, a ratio of a spacing distance between the guide tube and the bottom of the circulation tank to a diameter of the inlet is greater than 0.3.

[0018] In some embodiments, the pulping equipment further includes a stirring structure, which is disposed on the top of the circulation tank or on the sleeve, and is used to stir the slurry.

[0019] In some embodiments, the pulping equipment further includes a cooling structure, which is disposed on the top of the circulation tank and extends into the containing cavity, and the cooling structure is used to cool the slurry.

[0020] In the pulping equipment provided by the present application, the sleeve is arranged at the top of the circulation tank and extends into the accommodating chamber, the dispersion device is installed at the end of the sleeve close to the bottom wall of the circulation tank, the dispersion device is provided with an inlet and an outlet communicated with the inlet, the inlet is communicated with the accommodating chamber of the circulation tank, the guide tube is connected with the dispersion device, the inner wall of the guide tube and the outside of the sleeve form a guide channel, one end of the guide channel close to the top of the circulation tank is communicated with the accommodating chamber, and the end of the guide channel close to the bottom wall of the circulation tank is communicated with the outlet, the slurry is dispersed and circulated inside the circulation tank, on the one hand, the dispersion device is located inside the circulation tank, The circulation path of the slurry between the dispersion device and the circulation tank is greatly shortened, the slurry circulation efficiency is effectively improved, and the circulation time of the slurry is reduced; on the other hand, there is no need to set up additional connecting pipes to connect the dispersion device and the circulation tank, thereby simplifying the structure of the pulping equipment, making the structure of the pulping equipment more compact, which is conducive to the miniaturization of the pulping equipment, reducing the footprint of the pulping equipment, and reducing the manufacturing cost and installation cost of the pulping equipment; on the other hand, the sleeve is arranged on the top of the circulation tank, which is conducive to separating the circulation tank from other structures of the pulping equipment, thereby greatly reducing the difficulty of cleaning the pulping equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a cross-sectional view of the pulping equipment provided in the embodiment of the present application.

[0023] Figure 2 It is a schematic diagram of the structure of the dispersion device provided in some embodiments of the present application.

[0024] Figure 3 It is a cross-sectional view of a part of the structure of the pulping equipment provided in some embodiments of the present application.

[0025] Figure 4 It is a cross-sectional view of some structures in the pulping equipment provided in other embodiments of the present application.

[0026] Figure 5 It is a schematic diagram of the structure of the sleeve provided in some embodiments of the present application.

[0027] Figure 6 It is a cross-sectional view of pulping equipment provided in other embodiments of the present application.

[0028] Figure 7 It is a cross-sectional view of pulping equipment provided in other embodiments of the present application.

[0029] Description of main reference numerals: pulping device 100; circulation tank 10; accommodating chamber 101; top 102; bottom 103; top cover 11; side wall 12; extension plate 121; bottom wall 13; discharge port 131; central axis C1; sleeve 20; drive shaft 21; baffle 22; first plate body 221; second plate body 222; flow guide structure 23; dispersion device 30; inlet 301; outlet 302; first dispersion member 31; first disk body 311; first baffle ring 312 ; first dispersion groove 3121; second dispersion member 32; second disk body 321; second baffle ring 322; second dispersion groove 3221; push blade 323; guide tube 40; guide channel 401; first flow channel 4011; second flow channel 4012; reflux channel 4013; side plate 41; bottom plate 42; stirring structure 50; first stirring member 51; second stirring member 52; cooling structure 61; fin 611; cooling jacket 62; first distance D1; second distance D2.

[0030] The following specific implementation methods will further illustrate the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments in the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0032] Reference to "embodiment" or "implementation" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiment or implementation may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] It should be noted that the terms in the specification and claims of this application and the above-mentioned drawings are only for describing specific embodiments and are not intended to limit this application. The terms "first", "second", etc. in the specification and claims of this application and the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order. The term "and / or" used in this application refers to any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0034] See also Figure 1 , Figure 1: is a cross-sectional view of a pulping device 100 provided in an embodiment of the present application. The pulping device 100 includes a circulation tank 10, a sleeve 20, a dispersion device 30 and a guide tube 40. A accommodating chamber 101 is provided in the circulation tank 10, and the accommodating chamber 101 is used to accommodate slurry. The circulation tank 10 includes a top cover 11, a side wall 12 and a bottom wall 13. The circulation tank 10 includes a top 102 and a bottom 103 arranged opposite to each other along the extension direction of the central axis C1. After the pulping device 100 is assembled and installed, the bottom 103 of the circulation tank 10 is located on the side of the top 102 close to the ground. The top cover 11 is arranged on the top 102 of the circulation tank 10. The side wall 12 is fixedly connected to the bottom wall 13. The side wall 12 and the bottom wall 13 enclose the accommodating chamber 101. The sleeve 20 is arranged on the top 102 of the circulation tank 10 and extends into the accommodating chamber 101. The sleeve 20 is rotatably arranged relative to the circulation tank 10. The dispersion device 30 is installed at the end of the sleeve 20 close to the bottom wall 13 of the circulation tank 10. An inlet 301 is provided on one side of the dispersion device 30 close to the bottom wall 13 of the circulation tank 10. The inlet 301 is connected to the accommodating chamber 101. The side wall of the dispersion device 30 is provided with an outlet 302 connected to the inlet 301. The guide tube 40 is connected to the dispersion device 30. The inner wall of the guide tube 40 and the outer wall of the sleeve 20 form a guide channel 401. One end of the guide channel 401 close to the top 102 of the circulation tank 10 is connected to the accommodating chamber 101. The end of the guide channel 401 close to the bottom wall 13 of the circulation tank 10 is connected to the outlet 302.

[0035] When the pulping equipment 100 is pulping, the dispersion device 30 sucks the slurry near the bottom wall 13 of the circulation tank 10 from the inlet 301. After entering the dispersion device 30, the slurry is dispersed by the dispersion device 30 and discharged from the outlet 302. The discharged slurry enters the guide channel 401 and flows along the guide channel 401. Then, it flows into the accommodating chamber 101 from one end outlet of the guide channel 401 close to the top 102 of the circulation tank 10, and flows along the axial direction of the circulation tank 10 to near the bottom wall 13. In this way, the slurry forms a circulating flow in the circulation tank 10. In the embodiment of the present application, a sleeve 20, a dispersion device 30, and a guide tube 40 are provided in the pulping equipment 100, so that the slurry is dispersed and circulated inside the circulation tank 10. On the one hand, the dispersion device 30 is located inside the circulation tank 10, which greatly shortens the circulation path of the slurry between the dispersion device 30 and the circulation tank 10, effectively improves the slurry circulation efficiency, and reduces the circulation time of the slurry; on the other hand, there is no need to set up additional connecting pipes to connect the dispersion device 30 and the circulation tank 10 together, thereby simplifying the structure of the pulping equipment 100, making the structure of the pulping equipment 100 more compact, which is conducive to the miniaturization of the pulping equipment 100, reducing the footprint of the pulping equipment 100, and reducing the manufacturing cost and installation cost of the pulping equipment 100; on the other hand, the sleeve 20 is arranged at the top 102 of the circulation tank 10, which is conducive to separating the circulation tank 10 from other structures of the pulping equipment 100, thereby greatly reducing the difficulty of cleaning the pulping equipment 100. 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 the central axis C1 and surrounds the central axis C1 .

[0036] Please also read Figure 1 and Figure 2The dispersion device 30 includes a first dispersion member 31 and a second dispersion member 32. The second dispersion member 32 and the first dispersion member 31 can rotate relative to each other. The first dispersion member 31 includes a first disk 311 and at least one first retaining ring 312. The first disk 311 is fixedly connected to the guide tube 40. The first retaining ring 312 is arranged on a side of the first disk 311 close to the second dispersion member 32. A first dispersion groove 3121 is provided on the first retaining ring 312. The second dispersion member 32 includes a second disk 321 and at least one second retaining ring 322. The second disk 321 is fixed relative to the sleeve 20. The second retaining ring 322 is arranged on a side of the second disk 321 close to the first dispersion member 31. A second dispersion groove 3221 is provided on the second retaining ring 322. The second retaining ring 322 is located on the inner side and / or outer side of the first retaining ring 312. An inlet 301 is provided on the first disk 311. The first dispersion groove 3121 on the first baffle ring 312 located at the outermost side of the dispersion device 30 or the second dispersion groove 3221 on the second baffle ring 322 located at the outermost side is configured as the outflow port 302. When the second dispersion member 32 and the first dispersion member 31 rotate relative to each other, the slurry generates negative pressure near the second baffle ring 322 and the first baffle ring 312, so that the slurry flows into the dispersion device 30 from the inflow port 301, and the slurry is thrown out from the outflow port 302 by the centrifugal action of the second baffle ring 322 and / or the first baffle ring 312. When the slurry flows through the second dispersion groove 3221 on the second baffle ring 322 and the first dispersion groove 3121 on the first baffle ring 312, the second baffle ring 322 and the first baffle ring 312 shear and disperse the slurry.

[0037] At least one of the first baffle ring 312 and the second baffle ring 322 is configured as multiple layers. For example, the second baffle ring 322 is configured as one layer, the first baffle ring 312 is configured as two layers, and the second baffle ring 322 is located between the two layers of the first baffle ring 312. The first dispersion groove 3121 located on the outermost first baffle ring 312 is configured as an outflow port 302. The slurry flows in from the inflow port 301 and flows out from the outflow port 302. In some embodiments, the second baffle ring 322 is disposed at the outermost side of the dispersion device 30. When the second dispersion member 32 rotates, after the outermost second baffle ring 322 throws out the slurry, the slurry directly enters the guide channel 401, avoiding the first baffle ring 312 from causing flow obstruction to the slurry, thereby increasing the outflow speed of the slurry and the circulation speed.

[0038] The second dispersing member 32 also includes a pusher blade 323. The pusher blade 323 is disposed on the second disk 321 and is located on the inner side of the second baffle ring 322 at the innermost side of the dispersing device 30. The pusher blade 323 is fixedly connected to the second disk 321. The pusher blade 323 and the second disk 321 can be fixedly connected together by welding, screwing, clamping, etc., or the pusher blade 323 can also be integrally formed with the second disk 321. The pusher blade 323 is extended in a spiral shape. Along the axial direction of the circulation tank 10, the pusher blade 323 is roughly conical. The pusher blade 323 can be a clockwise spiral or a counterclockwise spiral. When the second dispersing member 32 rotates, the pusher blade 323 is used to push the slurry along the axial direction of the circulation tank 10 and the radial direction of the dispersing device 30, so that the slurry flows from the inlet 301 into the inside of the dispersing device 30. In some embodiments, the pusher blade 323 can also be disposed on the first disk 311.

[0039] The sleeve 20 extends in the axial direction of the circulation tank 10. The end of the sleeve 20 close to the bottom wall 13 of the circulation tank 10 is connected to the second dispersion member 32. The end of the guide tube 40 close to the bottom wall 13 of the circulation tank 10 is connected to the first dispersion member 31.

[0040] The end of the sleeve 20 close to the bottom wall 13 of the circulation tank 10 can be sealed and connected to the second dispersion member 32 to prevent the slurry from entering the connection between the sleeve 20 and the second dispersion member 32, or entering the inside of the sleeve 20. The end of the guide tube 40 close to the bottom wall 13 of the circulation tank 10 can be sealed and connected to the first dispersion member 31, so that all the slurry entering the guide channel 401 passes through the dispersion device 30, thereby improving the uniformity of the slurry and making the slurry dispersed evenly.

[0041] The guide tube 40 is rotatably arranged relative to the circulation tank 10, and / or the sleeve 20 is rotatably arranged relative to the circulation tank 10. Exemplarily, the guide tube 40 is fixedly arranged relative to the circulation tank 10, and the sleeve 20 is rotatably arranged relative to the circulation tank 10. The first dispersion member 31 is configured as a stator, and the first dispersion member 31 is fixed relative to the circulation tank 10. The second dispersion member 32 is configured as a rotor, and the second dispersion member 32 is rotatable relative to the circulation tank 10. When the sleeve 20 and the second dispersion member 32 rotate relative to the circulation tank 10, the second dispersion member 32 drives the slurry to rotate, and the slurry generates negative pressure near the second dispersion member 32, so that the slurry is sucked into the dispersion device 30 from the inlet 301, and the slurry is thrown out from the outlet 302 through the centrifugal action of the second dispersion member 32 on the slurry. Among them, the guide tube 40 can be fixedly connected to the side wall 12 or the top cover 11 of the circulation tank 10 through a supporting fixture.

[0042] In some embodiments, the guide tube 40 is rotatably arranged relative to the circulation tank 10, and the sleeve 20 is fixedly arranged relative to the circulation tank 10. The first dispersion member 31 is configured as a rotor, and the first dispersion member 31 is rotatable relative to the circulation tank 10. The second dispersion member 32 is configured as a stator, and the second dispersion member 32 is fixed relative to the circulation tank 10. When the first dispersion member 31 rotates, the slurry is driven to rotate, and the slurry generates a negative pressure near the first dispersion member 31, so that the slurry is sucked into the dispersion device 30 from the inlet 301, and the slurry is thrown out from the outlet 302 through the centrifugal action of the first dispersion member 31 on the slurry. In some embodiments, a drainage portion is provided on the side of the first disk 311 facing the bottom wall 13, and the drainage portion is spirally arranged. The drainage portion is used to push the slurry to flow toward the inlet 301 when the first disk 311 rotates. Among them, the drainage portion can be constructed as a spiral protrusion protruding from the first disk 311 on the side facing the bottom wall 13.

[0043] In some embodiments, the guide tube 40 is rotatable relative to the circulation tank 10, and the sleeve 20 is rotatable relative to the circulation tank 10. The guide tube 40 rotates in opposite directions to the sleeve 20. The first dispersing member 31 and the second dispersing member 32 are rotatable relative to the circulation tank 10, respectively, and the rotation directions are opposite. When the first dispersing member 31 and the second dispersing member 32 rotate, the slurry is driven to rotate, and the slurry generates negative pressure near the first dispersing member 31 and the second dispersing member 32, so that the slurry is sucked into the dispersion device 30 from the inlet 301, and the slurry is thrown out from the outlet 302 through the centrifugal action of the first dispersing member 31 and the second dispersing member 32 on the slurry.

[0044] In some embodiments, the pulping equipment 100 further includes a drive shaft 21. The sleeve 20 is hollow. The drive shaft 21 is inserted into the sleeve 20. The end of the drive shaft 21 close to the bottom wall 13 of the circulation tank 10 is connected to the second dispersion member 32 of the dispersion device 30. Exemplarily, the drive shaft 21 is rotatably arranged relative to the circulation tank 10. Among them, the pulping equipment 100 further includes a drive device, which is transmission-connected to the drive shaft 21 and is used to drive the drive shaft 21 to rotate. In some embodiments, the drive shaft 21 can be fixedly arranged relative to the circulation tank 10, and the end of the sleeve 20 close to the top 102 of the circulation tank 10 can be sealed and connected to the top cover 11.

[0045] In some embodiments, a cooling channel is formed between the outer wall of the drive shaft 21 and the inner wall of the sleeve 20. A cooling medium is introduced into the cooling channel. The cooling medium is used to cool the drive shaft 21 and the sleeve 20, so as to dissipate heat from the slurry through the sleeve 20.

[0046] The flow guide channel 401 includes a first flow channel 4011 and a second flow channel 4012. The second flow channel 4012 is connected to the first flow channel 4011. The flow guide tube 40 includes a side plate 41 and a bottom plate 42. The side plate 41 is arranged in an annular shape. The side plate 41 extends in the axial direction of the circulation tank 10. The bottom plate 42 extends in the radial direction of the circulation tank 10. The bottom plate 42 is connected to the end of the side plate 41 close to the bottom 103 of the circulation tank 10. Along the radial direction of the circulation tank 10, the width of the first disk body 311 is greater than the width of the second disk body 321. The diameter of the first disk body 311 is greater than the diameter of the second disk body 321. The first disk body 311 is located between the second disk body 321 and the bottom wall 13 of the circulation tank 10. The bottom plate 42 is connected to the first dispersion member 31. Among them, the bottom plate 42 and the first dispersion member 31 can be sealed. The first flow channel 4011 is formed between the side plate 41 and the side wall of the sleeve 20. The first flow channel 4011 is connected to the accommodating chamber 101. The first flow channel 4011 extends in the axial direction of the circulation tank 10. The bottom plate 42 and the end surface of the sleeve 20 close to the bottom wall 13 of the circulation tank 10 form a second flow channel 4012. The second flow channel 4012 extends in the radial direction of the circulation tank 10. The end of the second flow channel 4012 away from the first flow channel 4011 is connected to the outflow port 302. After the slurry flows out of the outflow port 302, it enters the second flow channel 4012, flows through the first flow channel 4011, and then flows into the accommodating chamber 101. Exemplarily, the arc transition is set at the connection between the side plate 41 and the bottom plate 42 to reduce or avoid the accumulation of slurry at the connection between the side plate 41 and the bottom plate 42 and in the vicinity thereof.

[0047] Exemplarily, the cross-sectional area of ​​the guide channel 401 at the top 102 position near the circulation tank 10 is equal to the cross-sectional area of ​​the guide channel 401 at the bottom 103 position near the circulation tank 10. The side plate 41 of the guide tube 40 and the side wall of the sleeve 20 are both cylindrical and coaxially arranged. The central axis of the guide tube 40 is colinear with the central axis of the sleeve 20. In some embodiments, the cross-sectional area of ​​the guide channel 401 at the top 102 position near the circulation tank 10 is greater than the cross-sectional area of ​​the guide channel 401 at the bottom 103 position near the circulation tank 10. In this way, when the slurry flows in the guide channel 401, the flow rate of the slurry decreases due to the increase in the cross-sectional area of ​​the guide channel 401, thereby reducing the surging of the slurry at the liquid surface, avoiding slurry splashing, and avoiding air mixing into the slurry. Among them, the side plate 41 of the guide tube 40 can be inclined relative to the bottom plate 42 toward the side wall 12 of the circulation tank 10. The flow area of ​​the first flow channel 4011 can be increased in a linear relationship. The side plate 41 of the guide tube 40 can also be bent relative to the bottom plate 42 toward the side wall 12 of the circulation tank 10. The flow area of ​​the first flow channel 4011 can be increased in a nonlinear relationship.

[0048] A reflux channel 4013 is formed between the cylinder wall of the guide cylinder 40 and the side wall of the circulation tank 10, and the reflux channel 4013 is connected to the first flow channel 4011 and the inlet 301. Along the radial direction of the circulation tank 10, the first distance D1 between the cylinder wall of the guide cylinder 40 and the side wall of the circulation tank 10 is greater than or equal to the second distance D2 between the cylinder wall of the guide cylinder 40 and the cylinder wall of the sleeve 20. Among them, the first distance D1 can be the distance between the outer wall of the guide cylinder 40 and the inner wall of the circulation tank 10. The second distance D2 can be the distance between the inner wall of the guide cylinder 40 and the outer wall of the sleeve 20. Exemplarily, the first distance D1 is greater than the second distance D2. The flow area of ​​the first flow channel 4011 is greater than the flow area of ​​the reflux channel 4013. In this way, the volume of the first flow channel 4011 is smaller than the volume of the reflux channel 4013, so that the slurry has a greater flow rate in the first flow channel 4011, thereby avoiding the slurry from accumulating in the first flow channel 4011, and reducing the discharge resistance when the dispersion device 30 discharges the slurry, and making the liquid level of the slurry at the outlet of the first flow channel 4011 higher than the liquid level of the slurry at the reflux channel 4013, which is conducive to accelerating the slurry from the guide channel 401 to the reflux channel 4013, accelerating the slurry in the reflux channel 4013 to flow toward the dispersion device 30, and promoting the circulation of the slurry in the circulation tank 10. In some embodiments, the first distance D1 can be equal to the second distance D2.

[0049] Among them, the ratio of the first distance D1 to the second distance D2 is: 1-10. In this way, the height difference between the liquid level of the slurry at the outlet of the first flow channel 4011 and the liquid level of the slurry at the reflux channel 4013 is within a suitable range. On the one hand, it is conducive to promoting the circulation of the slurry in the circulation tank 10. On the other hand, it can avoid the splashing of the slurry on the liquid surface and avoid the mixing of air into the slurry to form bubbles. The specific ratio of the first distance D1 to the second distance D2 can be specifically set according to actual needs, and this application does not make specific restrictions. For example, the ratio of the first distance D1 to the second distance D2 can be 1, 1.5, 2, 3, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, etc.

[0050] The ratio of the distance between the opening of the guide channel 401 on the side close to the top 102 of the circulation tank 10 and the bottom wall 13 of the circulation tank 10 to the distance between the liquid surface of the slurry and the bottom wall 13 of the circulation tank 10 is: 0.8-3. In this way, the height difference between the outlet of the guide channel 401 and the liquid surface at the reflux channel 4013 of the slurry due to the flow inertia is within a suitable range. On the one hand, it is helpful to accelerate the slurry to flow out of the guide channel 401 into the reflux channel 4013, and promote the circulation of the slurry in the circulation tank 10. On the other hand, it can avoid the slurry from splashing on the liquid surface and avoid air from mixing into the slurry to form bubbles. On the other hand, it is helpful to avoid the slurry from accumulating in the guide channel 401, and it is helpful to make the slurry flowing out of the guide channel 401 cover the original slurry in the reflux channel 4013, thereby pushing the slurry in the reflux channel 4013 to flow toward the dispersion device 30, so that the slurry in the accommodating chamber 101 can all enter the dispersion device 30, thereby improving the dispersion effect of the slurry and improving the quality of the slurry. Among them, the opening of the guide channel 401 on the side close to the top 102 of the circulation tank 10 can be the end of the side plate 41 away from the bottom plate 42. The liquid level of the slurry may 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 bottom wall 13 of the circulation tank 10 and the liquid level of the slurry refers to the distance between the position of the bottom wall 13 close to the dispersion device 30 and the liquid level along the axial direction of the circulation tank 10 when the slurry in the circulation tank 10 is in a stationary state. The distance between the end of the side plate 41 away from the bottom plate 42 and the bottom wall 13 of the circulation tank 10 refers to the distance between the end of the side plate 41 away from the bottom plate 42 and the position of the bottom wall 13 of the circulation tank 10 close to the dispersion device 30. The ratio of the distance between the end of the side plate 41 away from the bottom plate 42 and the bottom wall 13 of the circulation tank 10 to the distance between the liquid level of the slurry and the bottom wall 13 of the circulation tank 10 can be specifically set according to actual needs, and is not specifically limited in this application. Exemplarily, the ratio of the distance between the end of the side plate 41 away from the bottom plate 42 and the bottom wall 13 of the circulation tank 10 to the distance between the liquid surface of the slurry and the bottom wall 13 of the circulation tank 10 may be 0.8, 0.9, 1, 1.2, 1.4, 1.5, 1.6, 1.8, 2, 2.2, 2.4, 2.5, 2.6, 2.8, 3, etc. In some embodiments, the end of the side plate 41 away from the bottom plate 42 may be located on the side where the liquid surface of the slurry is away from the bottom wall 13 of the circulation tank 10. That is, the end of the side plate 41 away from the bottom plate 42 is located above the liquid surface.

[0051] The ratio of the spacing distance between the guide tube 40 and the bottom wall 13 of the circulation tank 10 to the diameter of the inlet 301 is greater than 0.3. In this way, on the one hand, the slurry can be prevented from being deposited near the bottom wall 13, which is conducive to the dispersion device 30 to fully absorb the slurry near the bottom wall 13, improve the dispersion uniformity of the slurry, and improve the pulping efficiency of the pulping equipment 100. On the other hand, it can avoid that the distance between the inlet 301 of the dispersion device 30 and the bottom wall 13 is too small, so that the flow resistance of the slurry flowing from the reflux channel 4013 to the inlet 301 is too large, resulting in insufficient suction efficiency of the dispersion device 30, and reducing the pulping efficiency of the pulping equipment 100. Among them, the spacing distance between the guide tube 40 and the bottom wall 13 of the circulation tank 10 can be specifically set according to actual needs, and is not specifically limited in this application. The ratio of the spacing distance between the guide tube 40 and the bottom wall 13 of the circulation tank 10 to the diameter of the inlet 301 can be specifically set according to actual needs, and is not specifically limited in this application. Illustratively, the ratio of the spacing distance between the guide tube 40 and the bottom wall 13 of the circulation tank 10 to the diameter of the inlet 301 may be 0.3, 0.35, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1, 2, and so on.

[0052] In some embodiments, the end of the guide tube 40 away from the bottom 103 of the circulation tank 10 is inclined or bent in the direction away from the sleeve 20. For example, the end of the guide tube 40 away from the bottom 103 of the circulation tank 10 can be in the shape of an inverted cone, or can be in the shape of a trumpet, etc. When the slurry flows in the guide channel 401, due to the wall attachment effect of the slurry, the guide tube 40 guides the slurry, and the slurry flows along the extension direction of the side plate 41 of the guide tube 40. The end of the guide tube 40 is inclined or bent in the direction away from the sleeve 20. The guiding effect of the guide tube 40 on the slurry can make the flow direction of the slurry when it flows out of the opening of the guide tube 40 form an angle with the axial direction of the circulation tank 10, thereby reducing the surging height of the slurry at the opening of the guide tube 40 and avoiding slurry splashing.

[0053] See also Figure 3In some embodiments, the pulping equipment 100 further includes a baffle 22. The baffle 22 is disposed on the side wall of the sleeve 20 and is located on the side of the guide tube 40 away from the bottom 103 of the circulation tank 10. The baffle 22 is extended in the radial direction of the sleeve 20. On a plane perpendicular to the central axis C1 of the circulation tank 10, the orthographic projection of the baffle 22 at least partially covers the outlet of the guide channel 401 close to the top 102 of the circulation tank 10. The baffle 22 is used to shield the slurry that overflows at the outlet of the guide channel 401, to prevent the slurry from splashing onto the sleeve 20, and to allow all the slurry to flow into the position between the guide tube 40 and the side wall 12, so that the pulping equipment 100 can fully circulate and disperse the slurry, improve the accuracy of the slurry ratio, and prevent the air from being drawn into the slurry after the slurry splashes. Exemplarily, the baffle 22 can be located above the liquid surface of the slurry.

[0054] In some embodiments, at least one of the two surfaces of the baffle 22 facing each other along the axial direction of the sleeve 20 is inclined or bent toward the bottom 103 of the circulation tank 10, so that the slurry falling on the baffle 22 can slide down to the position between the guide tube 40 and the side wall 12 under the action of gravity, avoiding the slurry from accumulating on the baffle 22. Among them, the baffle 22 can be inclined or bent relative to the sleeve 20 toward the bottom 103 of the circulation tank 10. The extension length of the baffle 22 along the radial direction of the circulation tank 10 is greater than or equal to the width of the outlet of the guide channel 401 near the top 102 side along the radial direction of the circulation tank 10, so that the slurry slides from the baffle 22 to the position between the guide tube 40 and the side wall 12. In some embodiments, the two surfaces of the baffle 22 facing each other along the axial direction of the sleeve 20 can also be arranged in a plane to reduce the difficulty of processing the baffle 22.

[0055] In some embodiments, the baffle 22 may be provided as one. The baffle 22 may be provided in an annular shape, and on a plane perpendicular to the central axis C1 of the circulation tank 10, the orthographic projection of the baffle 22 covers the outlet of the guide channel 401 close to the top 102 of the circulation tank 10. In some embodiments, the baffle 22 may be provided as a plurality, and the plurality of baffles 22 are arranged along the circumferential direction of the sleeve 20.

[0056] See also Figure 4In some embodiments, the baffle 22 includes a plurality of first plates 221 and a plurality of second plates 222. The second plate 222 is located on the side of the first plate 221 away from the bottom wall 13 of the circulation tank 10. The plurality of first plates 221 and the plurality of second plates 222 are alternately arranged along the circumferential direction of the sleeve 20. On a plane perpendicular to the central axis C1 of the circulation tank 10, the orthographic projections of the plurality of first plates 221 and the orthographic projections of the plurality of second plates 222 overlap to form a complete ring. In this way, the slurry that has risen can be effectively shielded to prevent the slurry from splashing onto the side wall of the sleeve 20, and when the sleeve 20 is cleaned, it is helpful to remove the slurry remaining at the connection between the first plate 221 and the sleeve 20 and at the connection between the second plate 222 and the sleeve 20, thereby improving the cleaning efficiency.

[0057] Please also read Figure 1 and Figure 5 In some embodiments, a flow guiding structure 23 is provided on the outer wall of the sleeve 20 and / or the inner wall of the flow guiding tube 40. The flow guiding structure 23 is extended in a spiral shape. When the slurry flows along the flow guiding channel 401, the flow guiding structure 23 is used to guide the slurry so that the slurry flows in a spiral direction along the circumferential direction of the sleeve 20, so that when the slurry flows out from the outlet of the first flow channel 4011, the flow direction of the slurry is at an acute angle to the axial direction of the sleeve 20, thereby reducing the surging of the slurry at the liquid surface, reducing or avoiding the slurry from adhering to the side wall of the sleeve 20, allowing the slurry to fully circulate and disperse, and improving the accuracy of the slurry ratio. In addition, when the sleeve 20 provided with the flow guiding structure 23 and / or the flow guiding tube 40 provided with the flow guiding structure 23 rotates, the flow guiding structure 23 can also be used to push the slurry to flow toward the outlet of the first flow channel 4011 to increase the flow speed of the slurry and improve the circulation efficiency.

[0058] The flow guiding structure 23 may be configured as a spiral protrusion and / or a spiral groove. Among them, the flow guiding structure 23 may be configured as a spiral protrusion. The spiral protrusion may also improve the structural strength of the flow guiding tube 40 and / or the sleeve 20, and avoid deformation of the flow guiding tube 40 and / or the sleeve 20. In some embodiments, the flow guiding structure 23 may be configured as a spiral groove. In some embodiments, the flow guiding structure 23 may be configured as a combination of a spiral protrusion and a spiral groove, for example, the flow guiding structure 23 includes a plurality of flow guiding structures, wherein a portion of the flow guiding structure 23 is configured as a spiral protrusion, and another portion of the flow guiding structure 23 is configured as a spiral groove.

[0059] In some embodiments, the flow guiding structure 23 may be disposed on the side of the side plate 41 of the flow guiding cylinder 40 facing the sleeve 20. In some embodiments, the flow guiding structure 23 may also be disposed on the side of the bottom plate 42 of the flow guiding cylinder 40 facing the sleeve 20. In some embodiments, the flow guiding structure 23 may also be disposed on the side of the sleeve 20 facing the side plate 41 and / or the side facing the bottom plate 42.

[0060] See also Figure 6 In some embodiments, the pulping device 100 further includes a stirring structure 50. The stirring structure 50 is disposed on the top of the circulation tank 10 or on the sleeve 20. The stirring structure 50 is used to stir the slurry to improve the mixing uniformity of the slurry. Exemplarily, the stirring structure 50 is connected to the side wall of the sleeve 20. The stirring structure 50 includes a plurality of first stirring members 51. The plurality of first stirring members 51 are spaced apart along the axial direction of the sleeve 20. The number of the first stirring members 51 may be 2, 3, 4, etc.

[0061] The first stirring member 51 extends into the reflux channel 4013. The first stirring member 51 is spaced apart from the guide tube 40. The first stirring member 51 includes a first stirring section and a second stirring section connected to the first stirring section. The first stirring section extends in the radial direction of the sleeve 20. The second stirring section extends in the axial direction of the sleeve 20 and extends into the reflux channel 4013. In some embodiments, the first stirring section and / or the second stirring section may be spirally arranged along the circumferential direction of the sleeve 20 to reduce the rotational resistance of the first stirring member 51.

[0062] In some embodiments, the stirring structure 50 further includes a second stirring member 52. The second stirring member 52 is connected to the second stirring section. The second stirring member 52 extends in the radial direction of the sleeve 20. A plurality of second stirring members 52 are provided, and the plurality of second stirring members 52 are spaced apart in the axial direction of the sleeve 20. The second stirring member 52 is used to increase the contact area between the stirring structure 50 and the slurry, thereby improving the stirring effect of the stirring structure 50 on the slurry.

[0063] See also Figure 7 In some embodiments, the pulping equipment 100 further includes an extension plate 121. The extension plate 121 is disposed on the side wall 12 of the circulation tank 10 and extends in the radial direction of the circulation tank 10. The extension plate 121 is provided in plurality, and the plurality of extension plates 121 are arranged at intervals along the axial direction of the circulation tank 10. The second stirring member 52 is located on the side of the second stirring section away from the sleeve 20. Along the axial direction of the circulation tank 10, the plurality of second stirring members 52 and the plurality of extension plates 121 are arranged alternately. When the sleeve 20 drives the second stirring member 52 to rotate through the first stirring member 51, the second stirring member 52 and the extension plate 121 form shear on the slurry, thereby improving the mixing uniformity of the slurry. In some embodiments, an extension plate 121 is provided on the guide tube 40. The extension plate 121 is located on the side of the side plate 41 facing the side wall 12 of the circulation tank 10. The second stirring member 52 is provided on the side of the second stirring section close to the sleeve 20.

[0064] Among them, the arrangement direction of the multiple extension plates 121 can be parallel to the axial direction of the circulation tank 10 to reduce the difficulty of installing the extension plates 121. In some embodiments, the multiple extension plates 121 are arranged in a spiral shape along the axial direction of the circulation tank 10. In this way, when the sleeve 20 drives the second stirring member 52 to rotate, the multiple second stirring members 52 meet the extension plates 121 in sequence, avoiding the multiple second stirring members 52 and the multiple extension plates 121 from meeting in a concentrated manner, thereby avoiding the multiple second stirring members 52 and the multiple extension plates 121 from shearing the slurry in a concentrated manner, reducing the reaction force of the slurry on the second stirring member 52, and reducing the rotation resistance of the stirring structure 50.

[0065] In some embodiments, the pulping equipment 100 also includes a cooling structure 61. The cooling structure 61 is connected to the top cover 11 and at least partially extends into the accommodating chamber 101. The cooling structure 61 extends into the reflux channel 4013 and is immersed in the slurry. The cooling structure 61 is used to cool the slurry so that the temperature of the slurry is maintained within a preset temperature range to improve the quality of the slurry. A heat dissipation channel is provided in the cooling structure 61. A circulating heat dissipation medium is provided in the heat dissipation channel. A portion of the cooling structure 61 is located inside the circulation tank 10, and the other portion is located outside the circulation tank 10. When the heat dissipation medium flows in the heat dissipation channel, the heat of the slurry can be brought to the outside of the circulation tank 10.

[0066] Wherein, the cooling structure 61 can be configured as a heat pipe, or as a cooling circulation pipe. Exemplarily, wherein, the cooling structure 61 is configured as a heat pipe. The heat dissipation channel is arranged in the heat pipe. The heat dissipation channel includes a capillary tube. The heat pipe includes a first segment and a second segment. The first segment is located in the accommodating chamber 101. The second segment is connected to the first segment and is located outside the circulation tank 10. The first segment is immersed in the slurry. The heat dissipation medium in the first segment vaporizes after absorbing the heat of the slurry, and flows along the heat dissipation channel to the second segment, and the vaporized heat dissipation medium condenses into a liquid in the second segment, and the heat dissipation medium condensed into a liquid will flow back to the first segment along the capillary tube due to capillary action. The heat dissipation medium circulates back and forth between the first segment and the second segment, thereby realizing heat dissipation of the slurry. In this way, the cooling structure 61 can spontaneously drive the heat dissipation medium to circulate in the heat dissipation channel through the temperature difference between the slurry and the external environment, avoiding the setting of an additional driving structure, thereby reducing the power consumption of the pulping equipment 100 and reducing the use cost of the pulping equipment 100. Exemplarily, the boiling point of the heat dissipation medium can be configured to be 25° C.-55° C. For example, the boiling point of the heat dissipation medium can be 25° C., 26° C., 30° C., 35° C., 61° C., 55° C., etc. In some embodiments, fins 611 are provided on the cooling structure 61 to increase the heat conduction area and improve the heat dissipation capacity.

[0067] In some embodiments, a cooling jacket 62 is provided on the circulation tank 10. The cooling jacket 62 wraps the side wall 12 and / or the bottom wall 13. The cooling jacket 62 is used to pass a cooling medium to cool the side wall 12 and / or the bottom wall 13 through the cooling medium, thereby dissipating heat from the slurry through the side wall 12 and / or the bottom wall 13.

[0068] In some embodiments, the pulping equipment 100 also 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 put solid materials into the circulation tank 10. The feeding structure can be configured as a twin-screw feeding mechanism. In some embodiments, the pulping equipment 100 also 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 inserted into 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 materials into the circulation tank 10, the liquid materials will flow down along the side wall 12, thereby reducing the impact force of the liquid materials on the liquid surface, reducing or avoiding the splashing of the liquid materials, and avoiding the mixing of gas into the liquid materials. In some embodiments, a discharge port 131 connected to the accommodating chamber 101 is provided on the bottom wall 13. The discharge port 131 is disposed close to the dispersion device 30 to increase the discharge speed of the slurry from the discharge port 131 and improve the discharge efficiency.

[0069] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A pulping device (100), characterized in that: include: A circulation tank (10), wherein a containing chamber (101) for containing slurry is provided in the circulation tank (10); A sleeve (20) is arranged on the top (102) of the circulation tank (10) and extends into the accommodating chamber (101); a dispersion device (30) mounted on an end of the sleeve (20) close to the bottom (103) of the circulation tank (10); an inlet (301) is provided on one side of the dispersion device (30) close to the bottom (103) of the circulation tank (10); the inlet (301) is communicated with the accommodating chamber (101); and a flow outlet (302) communicated with the inlet (301) is provided on a side wall of the dispersion device (30); A flow guide tube (40), wherein the flow guide tube (40) is connected to the dispersion device (30), wherein the inner wall of the flow guide tube (40) and the outer wall of the sleeve (20) form a flow guide channel (401), wherein one end of the flow guide channel (401) close to the top (102) of the circulation tank (10) is connected to the accommodating chamber (101), and the end of the flow guide channel (401) close to the bottom (103) of the circulation tank (10) is connected to the outflow port (302).

2. The pulping device (100) according to claim 1, characterized in that: The cross-sectional area of ​​the guide channel (401) at a position close to the top (102) of the circulation tank (10) is greater than or equal to the cross-sectional area at a position close to the bottom (103) of the circulation tank (10).

3. The pulping device (100) according to claim 1, characterized in that: The sleeve (20) extends along the axial direction of the circulation tank (10), and the dispersion device (30) includes a first dispersion component (31) and a second dispersion component (32). The second dispersion component (32) and the first dispersion component (31) are rotatable relative to each other. The end of the sleeve (20) close to the bottom (103) of the circulation tank (10) is connected to the second dispersion component (32), and the end of the guide tube (40) close to the bottom (103) of the circulation tank (10) is connected to the first dispersion component (31).

4. The pulping device (100) according to claim 3, characterized in that: The flow guide channel (401) comprises a first flow channel (4011) and a second flow channel (4012) connected to the first flow channel (4011); the flow guide tube (40) comprises a side plate (41) and a bottom plate (42) connected to an end of the side plate (41) close to the bottom (103) of the circulation tank (10); the side plate (41) extends in the axial direction of the circulation tank (10); the first flow channel (4011) is formed between the side plate (41) and the side wall of the sleeve (20). ), the bottom plate (42) extends in the radial direction of the circulation tank (10), the first flow channel (4011) is connected to the accommodating chamber (101), the bottom plate (42) is connected to the first dispersion member (31), the bottom plate (42) and the end surface of the sleeve (20) close to the bottom (103) of the circulation tank (10) form the second flow channel (4012), and the end of the second flow channel (4012) away from the first flow channel (4011) is connected to the outflow port (302).

5. The pulping device (100) according to claim 1, characterized in that: The pulping equipment (100) further comprises a driving shaft (21), wherein the driving shaft (21) is inserted into the sleeve (20), and the end of the driving shaft (21) close to the bottom (103) of the circulation tank (10) is connected to the dispersion device (30).

6. The pulping device (100) according to claim 1, characterized in that: An end of the guide tube (40) away from the bottom (103) of the circulation tank (10) is inclined or bent in a direction away from the sleeve (20).

7. The pulping device (100) according to claim 1, characterized in that: The dispersion device (30) comprises a first dispersion member (31) and a second dispersion member (32); the second dispersion member (32) is rotatably arranged relative to the first dispersion member (31); the first dispersion member (31) comprises a first disk (311) and at least one first retaining ring (312); the first disk (311) is fixedly connected to the guide tube (40); the first disk (311) is provided with the inlet (301); the first retaining ring (312) is arranged on a side of the first disk (311) close to the second dispersion member (32); and the first retaining ring (312) is provided with a first dispersion groove (3121); The second dispersing member (32) comprises a second disk body (321) and at least one second retaining ring (322); the second disk body (321) is fixed relative to the sleeve (20); the second retaining ring (322) is arranged on a side of the second disk body (321) close to the first dispersing member (31); a second dispersing groove (3221) is provided on the second retaining ring (322); the first retaining ring (312) is located on the inner side and / or outer side of the second retaining ring (322); the first dispersing groove (3121) or the second dispersing groove (3221) located on the outermost side of the dispersing device (30) is configured as the outflow port (302).

8. The pulping device (100) according to claim 7, characterized in that: The dispersing device (30) further comprises a pusher blade (323), wherein the pusher blade (323) is arranged on the first disk body (311) or the second disk body (321), and the pusher blade (323) is used to push the slurry along the radial direction of the dispersing device (30).

9. The pulping device (100) according to claim 1, characterized in that: The guide tube (40) is rotatably arranged relative to the circulation tank (10), and / or the sleeve (20) is rotatably arranged relative to the circulation tank (10).

10. The pulping device (100) according to claim 1, characterized in that: The pulping equipment (100) further comprises a baffle (22), wherein the baffle (22) is arranged on the sleeve (20) and is located on a side of the guide tube (40) away from the bottom (103) of the circulation tank (10), and on a plane perpendicular to the central axis (C1) of the sleeve (20), an orthographic projection of the baffle (22) at least partially covers an outlet of the guide channel (401) on a side close to the top (102) of the circulation tank (10).

11. The pulping device (100) according to claim 1, characterized in that: Along the radial direction of the circulation tank (10), a first distance (D1) between the cylinder wall of the guide cylinder (40) and the bottom (103) of the circulation tank (10) is greater than or equal to a second distance (D2) between the cylinder wall of the guide cylinder (40) and the cylinder wall of the sleeve (20).

12. The pulping device (100) according to claim 11, characterized in that: The ratio of the first distance (D1) to the second distance (D2) is: 1-10.

13. The pulping device (100) according to claim 1, characterized in that: The ratio of the distance between the opening of the guide channel (401) on one side close to the top (102) of the circulation tank (10) and the bottom (103) of the circulation tank (10) to the distance between the liquid surface of the slurry and the bottom (103) of the circulation tank (10) is: 0.8-3.

14. The pulping device (100) according to claim 1, characterized in that: The ratio of the spacing between the guide tube (40) and the bottom (103) of the circulation tank (10) to the diameter of the inlet (301) is greater than 0.

3.

15. The pulping device (100) according to claim 1, characterized in that: The pulping equipment (100) further comprises a stirring structure (50), wherein the stirring structure (50) is arranged on the top (102) of the circulation tank (10) or on the sleeve (20), and the stirring structure (50) is used to stir the slurry.

16. The pulping device (100) according to claim 1, characterized in that The pulping equipment (100) further comprises a cooling structure (61), wherein the cooling structure (61) is arranged at the top (102) of the circulation tank (10) and extends into the containing cavity (101), and the cooling structure (61) is used to cool the pulp.

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