Stirring tank of slurrying barrel

Abstract

The utility model relates to a slurrying barrel stirring tank which comprises a tank body and a stirring mechanism, the stirring mechanism comprises a driving motor, a stirring shaft and stirring blades arranged on the stirring shaft, the stirring shaft is rotatably arranged on the tank body, and the driving motor is in transmission connection with the upper end of the stirring shaft; the stirring device is characterized by further comprising a positioning assembly, the positioning assembly comprises a shaft sleeve matched with the stirring shaft, a positioning sleeve and a supporting rib plate, a positioning hole matched with the shaft sleeve is formed in the upper end of the positioning sleeve, the shaft sleeve is arranged in the positioning hole and detachably fixed to the positioning sleeve, and the lower end of the stirring shaft is inserted into the shaft sleeve. The positioning sleeve is detachably mounted on the supporting rib plate, and the supporting rib plate is fixed on the tank body; the stirring tank of the slurrying barrel not only can effectively reduce the swinging of the stirring shaft, reduce the failure rate of equipment and ensure the stable operation of the production process, but also is very convenient to overhaul and maintain, and not only can effectively reduce the labor intensity of maintenance personnel, but also can reduce the production cost.

Description

Technical Field

[0001] The utility model relates to the technical field of pulping barrel stirring equipment, in particular to a pulping barrel stirring tank. Background Art

[0002] Viscose is a man-made fiber typically made from natural or synthetic cellulose, hemicellulose, and other plant materials through chemical processing. Due to its softness, warmth, and ease of processing, viscose is widely used in clothing, home textiles, and household textiles.

[0003] During the production of viscose fiber, its raw pulp is transformed into alkali fiber after being soaked, pressed, aged and other processes. Among them, the aged alkali fiber will be sent to the pulping barrel mixing tank through the rotary valve air. The pulping barrel stirs the alkali fiber in the tank with alkali water and other solutions through the blades on the stirring shaft to fully stir and mix them into porridge, which is then sent to the next process. The existing pulping barrel mixing tank mainly includes a tank body, a driving motor, a stirring shaft, stirring blades, a spherical sleeve positioning mechanism, etc. Among them, the upper end of the stirring shaft is connected to the tank body through a frame bearing and is connected to the reducer for transmission. The reducer is connected to the driving motor for transmission. The lower end of the stirring shaft is rotatably constrained to the tank body through a spherical sleeve positioning mechanism. The spherical sleeve positioning mechanism is equipped with a spherical shaft sleeve and is assembled on the lower end of the stirring shaft in an embedded manner. The spherical sleeve positioning mechanism plays a role in positioning and constraining the stirring shaft, so that the stirring shaft can remain vertical. The stirring blades are set on the stirring shaft. When in use, the driving motor drives the stirring blades to rotate in the tank body through the stirring shaft to achieve the purpose of stirring the porridge medium in the tank body.

[0004] At present, due to the parameter ratio requirements of the production process, the concentration of the slurry medium inside the slurry barrel mixing tank is relatively high. In this case, when the mixing shaft rotates, a large shear force and friction force will be generated between the mixing blades on the shaft and the slurry medium in the tank body, which will drive the mixing shaft and the frame bearing to swing, causing the gap of the spherical sleeve to gradually increase and lose its positioning function on the mixing shaft. This will not only cause the mixing shaft to swing and affect the service life of the spherical sleeve, but also easily cause damage to components such as the frame bearing, pin, and reducer, and significantly increase the failure rate. However, in practice, due to the complex structure of the spherical sleeve positioning mechanism and the use of an embedded assembly method, each time maintenance and replacement is performed, it is necessary to enter the tank for confined space operations and remove the mixing parts inside the tank one by one. This not only greatly increases the workload of maintenance personnel, but also increases the safety risks of maintenance work, making maintenance work more difficult and time-consuming, and urgently needs to be solved. Summary of the Invention

[0005] The first aspect of the present invention is to solve the above technical problems and provide a pulping barrel mixing tank that can effectively reduce the failure rate and facilitate repair and maintenance. The main concept is:

[0006] A slurry barrel stirring tank comprises a tank body and a stirring mechanism, wherein the stirring mechanism comprises a driving motor, a stirring shaft and a stirring blade arranged on the stirring shaft, wherein the stirring shaft is rotatably arranged on the tank body, and the driving motor is in driving connection with the upper end of the stirring shaft;

[0007] It also includes a positioning component, which includes a shaft sleeve, a positioning sleeve and a supporting rib adapted for the stirring shaft. The upper end of the positioning sleeve is constructed with a positioning hole adapted for the shaft sleeve. The shaft sleeve is arranged in the positioning hole and can be detachably fixed to the positioning sleeve. The lower end of the stirring shaft is inserted into the shaft sleeve. The positioning sleeve is detachably installed on the supporting rib, and the supporting rib is fixed to the tank body. In this solution, a tank body is configured to provide a place required for the reaction; a stirring mechanism is configured, and a drive motor and a stirring shaft are configured in the stirring mechanism. The drive motor is connected to the stirring shaft in a transmission manner, and the stirring shaft can be driven to rotate in the tank body to drive the stirring blade to rotate, thereby achieving the purpose of stirring the porridge medium or porridge in the tank body; a positioning component is configured so that the positioning component can be used to position and constrain the lower end of the stirring shaft to reduce the swing of the stirring shaft and improve the stability of the stirring shaft; specifically, a sleeve and a positioning sleeve are configured in the positioning assembly, the upper end of the positioning sleeve is configured to fit the positioning hole of the sleeve, and the sleeve is set in the positioning hole, and the lower end of the stirring shaft is inserted into the sleeve. On the one hand, the sleeve can be used to effectively constrain and position the lower end of the stirring shaft. On the other hand, it can effectively buffer the swing of the stirring shaft caused by shear force and friction, thereby effectively protecting the various components in the stirring mechanism. On the third hand, it can protect the stirring shaft from wear. At the same time, the sleeve is detachably fixed to the sleeve. After the sleeve is worn, the sleeve can be directly replaced, reducing maintenance and replacement time. Fourthly, through the cooperation between the agitator shaft, the shaft sleeve and the positioning sleeve, an external fixing structure for the agitator shaft can be formed, which is conducive to reducing maintenance time and saving production costs. By constructing a positioning hole for the shaft sleeve at the upper end of the positioning sleeve, the shaft sleeve can be installed and removed; by detachably installing the positioning sleeve on the supporting rib, not only can the supporting rib be used to effectively support and fix the positioning sleeve, but also it is convenient to adjust and position the position of the lower end of the agitator shaft during the assembly process; compared with the existing technology, this slurry barrel agitator tank can not only effectively reduce the swing of the agitator shaft, reduce the failure rate of the equipment, and ensure the stable operation of the production process, but also is very easy to repair and maintain, which can effectively reduce the labor intensity of maintenance personnel and reduce production costs.

[0008] To improve the stability and reliability of the agitator shaft, the positioning assembly further includes at least three support ribs, which are evenly spaced along the circumference of the positioning sleeve. The configuration of multiple support ribs not only provides more stable support and restraint, but also improves the stress on the positioning sleeve, making the stress more even, thereby increasing the service life of the positioning sleeve and effectively improving the stability and reliability of the agitator shaft.

[0009] The second aspect of the present invention is to solve the problem of facilitating the rapid and precise positioning of the stirring shaft during assembly. Furthermore, the support rib is constructed with a first constraint hole, and the positioning sleeve is constructed with a second constraint hole adapted to the first constraint hole; it also includes a fastener adapted to the first constraint hole and the second constraint hole, and the positioning sleeve is detachably fixed to the support rib through the fastener.

[0010] Furthermore, the positioning sleeve includes a cylindrical body and a support ear arranged outside the cylindrical body, the positioning hole is configured in the cylindrical body, and the second constraint hole is configured in the support ear, which is conducive to simplifying the structure and reducing costs.

[0011] Preferably, the support ribs are each configured with two first constraint holes along the height direction, the positioning sleeves are each configured with two second constraint holes adapted to the two first constraint holes, and the support ribs are connected to the positioning sleeves via two fasteners. In this solution, the connection between the positioning sleeves and the support ribs is achieved via two fasteners arranged along the height direction. This not only makes the connection between the positioning sleeves and the support ribs more secure, but also allows the horizontal position and levelness of the positioning sleeves to be adjusted through the coordination of the multiple first constraint holes and the second constraint holes, which is more conducive to accurately adjusting and positioning the position of the agitator shaft, ensuring that the agitator shaft remains in a vertical state.

[0012] Preferably, the first restraining hole is a horizontally arranged bar hole, and the second restraining hole is a vertically arranged bar hole. By configuring the first restraining hole as a horizontally arranged bar hole and the second restraining hole as a vertically arranged bar hole, when the first restraining hole and the second restraining hole are matched, the first restraining hole and the second restraining hole are exactly perpendicular to each other, thereby allowing the position of the positioning sleeve to be precisely adjusted within a wider range and effectively fixed using fasteners.

[0013] The third aspect of the present invention is to solve the problem of facilitating the positioning and restraining of the shaft sleeve. Furthermore, the positioning sleeve is also constructed with a connecting hole, the upper end of the connecting hole is connected to the positioning hole, the lower end of the connecting hole passes through the lower end of the positioning sleeve, and the inner diameter of the connecting hole is smaller than the outer diameter of the shaft sleeve. By constructing a connecting hole in the positioning sleeve, and making the upper end of the connecting hole connected to the positioning hole, and the inner diameter of the connecting hole is smaller than the outer diameter of the shaft sleeve, a ring-shaped limiting step can be formed between the positioning hole and the connecting hole. During assembly and use, the limiting step can be used to position and limit the lower end of the shaft sleeve in the positioning hole, which is not only easier to assemble, but also more conducive to limiting and restraining the stirring shaft by the shaft sleeve. In addition, the configuration of the connecting hole can also make the upper and lower ends of the positioning sleeve connected to each other, which is conducive to discharging the paddle porridge that enters between the stirring shaft and the shaft sleeve.

[0014] The fourth aspect of the present invention is to solve the problem that during the rotation of the stirring shaft relative to the shaft sleeve, the porridge medium in the tank body easily enters the gap between the stirring shaft and the shaft sleeve, and easily agglomerates in the gap, causing the stirring shaft to get stuck. Furthermore, the inner surface of the shaft sleeve is also constructed with a spiral groove, and the two ends of the spiral groove respectively penetrate the upper end and the lower end of the shaft sleeve. In this solution, by constructing a spiral groove on the inner surface of the shaft sleeve and making the two ends of the spiral groove respectively penetrate the upper end and the lower end of the shaft sleeve, when the stirring shaft rotates, the porridge and other media inside the sleeve can be continuously discharged through the rotation of the stirring shaft, thereby effectively preventing the porridge from agglomerating between the stirring shaft and the shaft sleeve, causing the stirring shaft to get stuck, and greatly reducing the failure rate of the equipment.

[0015] To facilitate assembly and disassembly of the sleeve, some solutions include a locking member. The side of the positioning sleeve is also configured with a threaded hole adapted to accommodate the locking member. The threaded hole communicates with the positioning hole, and the locking member is threadedly connected to the threaded hole and tightens against the sleeve. The engagement of the locking member with the threaded hole not only facilitates the connection of the sleeve and the positioning sleeve, but also facilitates disassembly and replacement of the sleeve.

[0016] Furthermore, the side of the positioning sleeve is configured with at least three threaded holes adapted to accommodate the locking elements. Each threaded hole is evenly distributed along the circumference of the positioning sleeve, and each threaded hole is threadedly connected to a locking element. This allows the sleeve to be tightened inward from multiple directions, effectively adjusting the horizontal position of the sleeve and the position of the lower end of the agitator shaft, further facilitating adjustment of the agitator shaft to a vertical position.

[0017] The fifth aspect of the present invention aims to further reduce the difficulty of maintenance and replacement and improve efficiency. Furthermore, the shaft sleeve is spliced together by at least two shaft sleeve pieces, and the positioning hole in the positioning sleeve is constructed as a conical structure; the inner surface of the shaft sleeve piece is constructed as an arc surface adapted to the stirring shaft, and the outer surface of the shaft sleeve piece is constructed as a conical surface adapted to the positioning hole; the end of the shaft sleeve piece is constructed with a limit plate adapted to the end of the positioning sleeve, the end of the positioning sleeve is constructed with a plurality of threaded holes, and the limit plate is constructed with a through hole adapted to the threaded holes; the shaft sleeve piece is inserted into the gap between the stirring shaft and the positioning sleeve and is fixed to the end of the positioning sleeve by a fastener adapted to the threaded holes. With such a design, each shaft sleeve piece can be installed and replaced separately without disassembling the stirring shaft and the positioning sleeve, so that the installation and replacement of the shaft sleeve can be completed without disassembling the stirring shaft and the positioning sleeve, thereby further reducing the difficulty of maintenance and replacement and significantly improving efficiency.

[0018] Furthermore, the tank body further includes a bearing and a bearing seat. An opening adapted for the stirring shaft is constructed at the center of the upper end of the tank body. The bearing seat is disposed at the opening. The stirring shaft is connected to the bearing seat via the bearing, so that the bearing can effectively constrain and position the upper end of the stirring shaft.

[0019] To achieve a better stirring effect, a vertically arranged draft tube is further provided in the tank. The stirring shaft passes through the middle of the draft tube, and some stirring blades are arranged inside the draft tube, while others are arranged below the draft tube. The coordination of the stirring shaft, stirring blades, and draft tube can achieve a better stirring effect.

[0020] Compared with the existing technology, the use of a slurry barrel mixing tank provided by the utility model can not only effectively reduce the swing of the mixing shaft, reduce the failure rate of the equipment, and ensure the stable operation of the production process, but also is very convenient for inspection and maintenance, which can effectively reduce the labor intensity of maintenance personnel and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the main structure of a pulping barrel stirring tank provided in Example 1 of the utility model.

[0023] Figure 2 for Figure 1 Cross-sectional view at AA in the middle.

[0024] Figure 3 for Figure 2 Cross-sectional view at the middle BB.

[0025] Figure 4 This is a partial top view of the positioning component in a pulping barrel stirring tank provided in Example 1 of the utility model.

[0026] Figure 5 This is a partial cross-sectional view of the positioning component in a pulping barrel stirring tank provided in Example 2 of the present utility model.

[0027] Figure 6 This is a partial cross-sectional view of the positioning component in a pulping barrel stirring tank provided in Example 4 of the present utility model.

[0028] Figure 7 This is a partial cross-sectional view of the positioning component in a pulping barrel stirring tank provided in Example 5 of the present utility model.

[0029] Figure 8 This is a partial top view of the positioning component in a pulping barrel mixing tank provided in Example 5 of the present utility model.

[0030] Explanation of the marks in the figure: tank body 1, inner cavity 11, first material inlet 12, second material inlet 13, porridge outlet 14, manhole 15, base 16, bearing seat 17, bracket 18; drive motor 21, reducer 22, coupling 23, stirring shaft 24, stirring blade 25; positioning assembly 3, sleeve 31, positioning sleeve 32, support rib 33, locking piece 34; first constraint hole 41; cylinder 51, positioning hole 52, connecting hole 53, threaded hole 54, support ear 55, second constraint hole 56; spiral groove 61, sleeve piece 62, inner surface 63, outer surface 64, limit plate 65, through hole 66; guide tube 7; fastener 8. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0032] Example 1

[0033] This embodiment provides a slurry barrel stirring tank, including a tank body 1, a stirring mechanism and a positioning component 3, wherein:

[0034] like Figure 1 As shown, the tank body 1 is constructed with an inner cavity 11, and the tank body 1 is mainly used to provide a place required for the reaction. During implementation, the shape and volume of the tank body 1 can be determined according to actual needs. Figure 1 As shown, the top of the tank body 1 is provided with a first material inlet 12 and a second material inlet 13, and the bottom of the tank body 1 is provided with a porridge outlet 14. The first material inlet 12, the second material inlet 13 and the porridge outlet 14 are respectively connected to the inner cavity 11. Figure 1 As shown, a manhole 15 is provided on the side of the tank body 1 to communicate with the inner cavity 11 for the purpose of early installation and subsequent maintenance. A base 16 is also provided at the bottom of the tank body 1 to stably support the tank body 1 using the base 16.

[0035] In this embodiment, the stirring mechanism is provided in the tank body 1 so as to stir the porridge medium and the porridge in the tank body 1. In order to facilitate the installation of the stirring mechanism, an opening adapted to the stirring mechanism is also constructed on the top of the tank body 1 during implementation. The opening is constructed at the center of the tank body 1, and a bearing seat 17 is also provided at the opening. Figure 1 As shown. A bracket 18 is also provided on the top of the tank body 1. Figure 1 As shown, in order to support and install the driving motor 21 and reducer 22 in the stirring mechanism.

[0036] When implementing, Figure 1 As shown, the stirring mechanism includes a driving motor 21, a speed reducer 22, a stirring shaft 24 and a stirring blade 25 provided on the stirring shaft 24. The stirring shaft 24 is rotatably provided on the tank body 1, and the driving motor 21 is in transmission connection with the upper end of the stirring shaft 24. Specifically, as shown in the figure, the speed reducer 22 can be installed on the bracket 18 of the tank body 1, such as Figure 1 As shown, the output shaft of the drive motor 21 is connected to the reducer 22, and the drive motor 21 can also be directly fixed to the reducer 22 by a fastener 8. The output shaft of the reducer 22 can be connected to the upper end of the stirring shaft 24 through a coupling 23, as shown in FIG. Figure 1 As shown, the driving motor 21 can drive the stirring shaft 24 to rotate through the reducer 22, and the reducer 22 can play a role in reducing speed and increasing torque during the transmission process.

[0037] During assembly, the upper end of the stirring shaft 24 can be connected to the bearing seat 17 through a bearing, so that the upper end of the stirring shaft 24 can be effectively constrained and positioned by the bearing. Figure 1 As shown, the lower end of the stirring shaft 24 extends into the inner cavity 11 of the tank body 1 through the opening, and the stirring blade 25 is provided on the stirring shaft 24 extending into the inner cavity 11 so as to rotate in the tank body 1 and play a stirring role.

[0038] During implementation, the positioning assembly 3 is disposed at the bottom of the tank body 1. The positioning assembly 3 can be used to position and constrain the lower end of the stirring shaft 24, so as to reduce the swing of the stirring shaft 24 and improve the stability of the stirring shaft 24. In this embodiment, the positioning assembly 3 includes a sleeve 31 adapted to the stirring shaft 24, a positioning sleeve 32 adapted to the sleeve 31, and a supporting rib 33. The upper end of the positioning sleeve 32 is configured with a positioning hole 52 adapted to the sleeve 31, as shown in FIG. Figure 1-Figure 3 As shown, during assembly, the sleeve 31 can be set in the positioning hole 52 and can be detachably fixed to the positioning sleeve 32. At the same time, the lower end of the stirring shaft 24 can be inserted into the sleeve 31, as shown in FIG. Figure 1-Figure 3 As shown, the shaft sleeve 31 is located between the stirring shaft 24 and the positioning sleeve 32, so as to achieve the purpose of isolating and protecting the stirring shaft 24. Figure 1-Figure 3 As shown, the positioning sleeve 32 is detachably mounted on the supporting rib 33, and the supporting rib 33 is fixed to the tank body 1, so that the supporting rib 33 can stably support and restrain the positioning sleeve 32, thereby achieving the purpose of positioning and restraining the stirring shaft 24, which is conducive to keeping the stirring shaft 24 in a vertical state.

[0039] In implementation, the number of support ribs 33 can be determined according to actual needs, and one support rib 33, two support ribs 33, three support ribs 33, etc. can be configured. In order to improve the stability and reliability of the stirring shaft 24, in implementation, the positioning assembly 3 can include at least three support ribs 33, and the support ribs 33 can be evenly arranged along the circumferential direction of the positioning sleeve 32, such as Figure 1-Figure 3 As shown, it can not only support and constrain the supporting rib 33 more stably, but also improve the stress of the positioning sleeve 32, making the stress of the positioning sleeve 32 more uniform, so as to increase the service life of the positioning sleeve 32, thereby effectively improving the stability and reliability of the stirring shaft 24. As an example, Figure 1-Figure 3 As shown, the positioning assembly 3 is equipped with four supporting ribs 33, each of which is a plate-shaped structure. The four supporting ribs 33 are evenly arranged along the circumferential direction of the positioning sleeve 32 and can be welded to the inner surface 63 of the tank body 1, as shown in FIG. Figure 1-Figure 3 For ease of assembly, during implementation, the positioning sleeve 32 may include a cylindrical body 51 and ears 55 disposed on the outside of the cylindrical body 51. The number of ears 55 matches the number of supporting ribs 33, so that the ears 55 can be fixed to the corresponding supporting ribs 33 using fasteners 8. Figure 1-Figure 3 shown.

[0040] In order to facilitate the rapid and accurate positioning of the stirring shaft 24 during assembly, the supporting rib 33 is configured with a first constraint hole 41, and correspondingly, the positioning sleeve 32 is configured with a second constraint hole 56 adapted to the first constraint hole 41, as shown in FIG. Figure 1-Figure 3As shown, the second restraining hole 56 can be preferably configured in the support ear 55 so as to cooperate with the support rib 33. During assembly, a fastener 8 adapted to the first restraining hole 41 and the second restraining hole 56 is also included, so that the positioning sleeve 32 can be detachably fixed to the support rib 33 by the fastener 8, thereby achieving the purpose of fixing the positioning sleeve 32.

[0041] In practice, the number of the first constraint holes 41 constructed on the support rib 33 can be one, two, or more; similarly, in practice, the number of the first constraint holes 41 constructed on the lug 55 can also be one, two, or more. Figure 1-Figure 3 As shown, the support rib 33 is respectively configured with two first constraint holes 41 along the height direction. At the same time, the support ears 55 of the positioning sleeve 32 are respectively configured with two second constraint holes 56 adapted to the two first constraint holes 41, so that the support rib 33 can be connected to the positioning sleeve 32 through two fasteners 8. This not only makes the connection between the positioning sleeve 32 and the support rib 33 more secure, but also ensures that the stirring shaft 24 remains in a vertical state. In implementation, the first constraint hole 41 can be a threaded hole 54 or a circular blind hole, etc., and accordingly, the second constraint hole 56 can also be a threaded hole 54 or a circular blind hole, etc., as shown in FIG. Figure 1-Figure 3 As shown, the fastener 8 can be a bolt or a bolt pair (including a bolt and a nut).

[0042] In this embodiment, the sleeve 31 may be a cylindrical structure, such as Figure 1-Figure 3 As shown, the inner diameter of the sleeve 31 can be adapted to the outer diameter of the stirring shaft 24 , and the outer diameter of the sleeve 31 can be adapted to the inner diameter of the positioning hole 52 .

[0043] In order to facilitate positioning and restraining the shaft sleeve 31, in a more perfect embodiment, the positioning sleeve 32 is further configured with a communicating hole 66, such as Figure 1-Figure 3 As shown, the upper end of the communication hole 66 is connected to the positioning hole 52, and the lower end of the communication hole 66 passes through the lower end of the positioning sleeve 32, as shown in FIG. Figure 3 As shown, the inner diameter of the communicating hole 66 is smaller than the outer diameter of the sleeve 31, so that a ring-shaped limiting step can be formed between the positioning hole 52 and the communicating hole 66, as shown in FIG. Figure 3 As shown, during the assembly and use process, the limiting step can be used to position and limit the lower end of the sleeve 31 in the positioning hole 52, which is not only more convenient for assembly, but also more conducive to limiting and constraining the lower end of the stirring shaft 24 through the sleeve 31.

[0044] In order to facilitate the assembly and disassembly of the sleeve 31, a locking member 34 is also included during implementation. As shown in the figure, the side of the positioning sleeve 32 is also constructed with a threaded hole 54 adapted to the locking member 34. The threaded hole 54 is connected to the positioning hole 52. The locking member 34 is threadedly connected to the threaded hole 54 and can tighten the internal sleeve 31. Figure 2 and Figure 3As shown, during implementation, the locking member 34 can be a bolt or a screw, etc., and through the cooperation of the locking member 34 and the threaded hole 54, not only can the shaft sleeve 31 and the positioning sleeve 32 be conveniently connected as a whole, so that the stirring shaft 24 can rotate relative to the shaft sleeve 31, but also the shaft sleeve 31 can be easily disassembled and replaced. During implementation, one, two or more threaded holes 54 can be set on the side of the positioning sleeve 32. In order to facilitate the precise positioning and constraint of the position of the lower end of the stirring shaft 24, at least three threaded holes 54 adapted to the locking member 34 can be constructed on the side of the positioning sleeve 32, and each threaded hole 54 is evenly distributed along the circumferential direction of the positioning sleeve 32, as shown in FIG. Figure 4 As shown, each threaded hole 54 is threadedly connected to a locking piece 34, so that the sleeve 31 can be tightened inward from multiple directions, thereby effectively adjusting the horizontal position of the sleeve 31 and the position of the lower end of the stirring shaft 24, which is more conducive to adjusting the stirring shaft 24 to a vertical state.

[0045] In this embodiment, the shaft sleeve 31 is an integral structure. When replacement is required, the coupling 23 can be disassembled first, and then the agitator shaft 24 can be lifted so that the lower end of the agitator shaft 24 is separated from the positioning sleeve 32. The locking member 34 can then be loosened to remove the shaft sleeve 31 to be replaced from the positioning sleeve 32; the new shaft sleeve 31 can then be installed in the positioning sleeve 32 and locked by the locking member 34. Finally, the agitator shaft 24 can be lowered so that the lower end of the agitator shaft 24 can be smoothly inserted into the shaft sleeve 31; finally, the coupling 23 can be installed so that the output shaft of the reducer 22 is in transmission connection with the agitator shaft 24. The entire replacement process is very simple, smooth, and efficient.

[0046] During use, the aged alkali fiber is blown into the tank body 1 of the pulping barrel mixing tank by the rotary valve, the driving motor 21 adjusts the speed to a suitable speed ratio through the reducer 22, and then transmits the power to the stirring shaft 24 through the coupling 23. The stirring blades 25 on the stirring shaft 24 are responsible for fully mixing and stirring the alkali fiber with alkaline water and other solutions to turn them into porridge, which is then discharged through the porridge outlet 14.

[0047] Example 2

[0048] During the rotation of the stirring shaft 24 relative to the shaft sleeve 31, the porridge medium in the tank body 1 easily enters the gap between the stirring shaft 24 and the shaft sleeve 31, and easily agglomerates in the gap, causing the stirring shaft 24 to become stuck. In order to solve this technical problem, the main difference between this embodiment 2 and the above-mentioned embodiment 1 is that in the slurry barrel stirring tank provided in this embodiment, the inner surface 63 of the shaft sleeve 31 is further constructed with a spiral groove 61, such as Figure 5As shown, the two ends of the spiral groove 61 pass through the upper end and the lower end of the sleeve 31 respectively, so that when the stirring shaft 24 rotates, the porridge and other media inside the sleeve can be continuously discharged through the rotation of the stirring shaft 24, thereby effectively preventing the porridge from staying between the stirring shaft 24 and the sleeve 31 for a long time, and the porridge lumps and causes the stirring shaft 24 to get stuck, thereby greatly reducing the failure rate of the equipment and improving stability and reliability.

[0049] Example 3

[0050] In order to achieve a better stirring effect, the main difference between this embodiment 3 and the above-mentioned embodiment 1 or embodiment 2 is that in the slurry barrel stirring tank provided in this embodiment, a vertically arranged guide tube 7 is further provided in the tank body 1, such as Figure 1 As shown, the stirring shaft 24 passes through the middle of the guide tube 7, and part of the stirring blades 25 are arranged in the guide tube 7, as shown in FIG. Figure 1 As shown, it can not only enhance the stirring effect in the guide tube 7, but also facilitate the porridge medium in the tank body 1 to form a circulation from bottom to top along the height direction, which is more conducive to the full mixing and reaction of the porridge medium. Figure 1 As shown, part of the stirring blades 25 is also arranged below the guide tube 7, and the diameter of this part of the stirring blades 25 can be larger than the outer diameter of the guide tube 7, so that the porridge medium can form a circulation from bottom to top along the height direction through the cooperation of the stirring shaft 24, the guide tube 7 and the two parts of the stirring blades 25, thereby achieving a better stirring effect.

[0051] Example 4

[0052] Due to the influence of factors such as assembly error and manufacturing error, it is difficult to ensure the actual position of the stirring shaft 24 in the pulping barrel stirring tank. Therefore, it is necessary to adjust the position or angle of the shaft sleeve 31 and the positioning sleeve 32 to adapt to the corresponding stirring shaft 24. In order to solve this technical problem, the main difference between this embodiment 4 and the above-mentioned embodiment 1 or embodiment 2 and embodiment 3 is that in the pulping barrel stirring tank provided in this embodiment, the first constraint hole 41 can be a horizontally arranged strip hole, such as Figure 6 As shown, accordingly, the second constraint hole 56 can be a vertically arranged strip hole. Through the cooperation between the first constraint hole 41 and the second constraint hole 56, the position and orientation (such as vertical orientation and inclined orientation) of the positioning sleeve 32 can be accurately adjusted within a larger range, and the fastener 8 can be used to achieve effective fixation.

[0053] In the case where four supporting ribs 33 are provided in embodiment 1, since the supporting ribs 33 are arranged in pairs, as shown in FIG. Figure 6As shown, therefore, during implementation, the horizontal position of the positioning sleeve 32 can be adjusted by cooperating between the two relatively arranged support ribs 33 and the corresponding support ears 55. After adjustment, it can be radially fixed using the fasteners 8. At this time, there may be a certain distance between the other two support ribs 33 and the corresponding support ears 55. At this time, gaskets are filled between the support ribs 33 and the support ears 55, and finally locked using the fasteners 8.

[0054] Example 5

[0055] In order to further reduce the difficulty of maintenance and replacement and improve efficiency, the main difference between this embodiment 5 and the above embodiments is that the structure and fixing method of the shaft sleeve 31 in the slurry barrel mixing tank provided in this embodiment are different. Specifically, in this embodiment, the shaft sleeve 31 includes two shaft sleeve pieces 62, and the inner surfaces 63 of the two shaft sleeve pieces 62 are respectively constructed as arc surfaces, such as Figure 7 and Figure 8 As shown, the inner diameter of the arc surface is adapted to the outer diameter of the stirring shaft 24. When the two shaft sleeves 62 are spliced together, the inner surfaces 63 of the two shaft sleeves 62 just surround a hole adapted to the stirring shaft 24, so as to effectively position and constrain the stirring shaft 24. At the same time, in this embodiment, the positioning hole 52 in the positioning sleeve 32 is constructed as a conical structure, such as Figure 7 and Figure 8 As shown, accordingly, the outer surface 64 of the shaft sleeve 62 is respectively constructed as a conical surface, and the size of the conical surface is adapted to the positioning hole 52, so that the shaft sleeve 62 forms a structure with a thin wall thickness at one end and a thick wall thickness at the other end, thereby facilitating the insertion of the shaft sleeve 62 into the gap between the stirring shaft 24 and the positioning sleeve 32, completing the installation of the shaft sleeve 62, as shown in FIG. Figure 7 and Figure 8 As shown, it is also convenient to remove the shaft sleeve piece 62 along the axial direction of the stirring shaft 24, so that the shaft sleeve 31 can be installed and replaced without removing the stirring shaft 24 and the positioning sleeve 32, thereby further reducing the difficulty of maintenance and replacement and significantly improving efficiency.

[0056] In addition, in a more complete solution, the end of the shaft sleeve 62 is further configured with a limiting plate 65 adapted to the end of the positioning sleeve 32, and the end of the positioning sleeve 32 is configured with a plurality of threaded holes 54. Accordingly, the limiting plate 65 is configured with a through hole adapted to the threaded hole 54, such as Figure 7 and Figure 8 As shown, the shaft sleeve 62 can be fixed to the end of the positioning sleeve 32 by a fastener 8 that fits the threaded hole 54, which not only can firmly install the shaft sleeve 62, but also is very convenient to install and remove. The fastener 8 is a bolt or a screw.

[0057] It is understandable that, in practice, the shaft sleeve 31 may be composed of three shaft sleeve pieces 62 , four shaft sleeve pieces 62 , or five shaft sleeve pieces 62 , etc., which can also achieve the same effect, and will not be elaborated here.

[0058] The above is only a specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A slurry barrel stirring tank, comprising a tank body and a stirring mechanism, wherein the stirring mechanism comprises a driving motor, a stirring shaft, and a stirring blade provided on the stirring shaft, wherein the stirring shaft is rotatably provided on the tank body, and the driving motor is in transmission connection with the upper end of the stirring shaft; characterized in that: It also includes a positioning component, which includes a shaft sleeve, a positioning sleeve and a supporting rib adapted for the stirring shaft. The upper end of the positioning sleeve is constructed with a positioning hole adapted for the shaft sleeve. The shaft sleeve is arranged in the positioning hole and can be detachably fixed to the positioning sleeve. The lower end of the stirring shaft is inserted into the shaft sleeve. The positioning sleeve is detachably installed on the supporting rib, and the supporting rib is fixed to the tank body.

2. The slurry barrel stirring tank according to claim 1, characterized in that: The supporting rib is constructed with a first constraint hole, and the positioning sleeve is constructed with a second constraint hole adapted to the first constraint hole; it also includes a fastener adapted to the first constraint hole and the second constraint hole, and the positioning sleeve is detachably fixed to the supporting rib through the fastener.

3. The slurry barrel stirring tank according to claim 2, characterized in that: The supporting ribs are respectively constructed with two first constraint holes along the height direction, the positioning sleeves are respectively constructed with two second constraint holes adapted to the two first constraint holes, and the supporting ribs are connected to the positioning sleeves through two fasteners.

4. The slurry barrel stirring tank according to claim 2, characterized in that: The positioning sleeve includes a cylindrical body and a support ear arranged on the outside of the cylindrical body, the positioning hole is configured in the cylindrical body, and the second constraint hole is configured in the support ear; And / or, the positioning assembly includes at least three supporting ribs, and the supporting ribs are evenly arranged along the circumferential direction of the positioning sleeve; And / or, the first constraining hole is a horizontally arranged bar hole; and the second constraining hole is a vertically arranged bar hole.

5. The slurry barrel stirring tank according to claim 1, characterized in that: The positioning sleeve is further configured with a communicating hole, the upper end of which is connected to the positioning hole, the lower end of which passes through the lower end of the positioning sleeve, and the inner diameter of the communicating hole is smaller than the outer diameter of the sleeve.

6. The slurry barrel stirring tank according to claim 1, characterized in that: The inner surface of the shaft sleeve is further structured with a spiral groove, and the two ends of the spiral groove respectively pass through the upper end and the lower end of the shaft sleeve.

7. The slurry barrel stirring tank according to any one of claims 1 to 6, characterized in that: It also includes a locking piece. The side of the positioning sleeve is also constructed with a threaded hole adapted to the locking piece. The threaded hole is connected to the positioning hole. The locking piece is threadedly connected to the threaded hole and presses against the shaft sleeve.

8. The slurry barrel stirring tank according to claim 7, characterized in that: The side surface of the positioning sleeve is structured with at least three threaded holes adapted to the locking pieces, each threaded hole is evenly distributed along the circumferential direction of the positioning sleeve, and each threaded hole is threadedly connected with the locking piece.

9. The slurrying barrel stirring tank according to any one of claims 1 to 6, characterized in that: The shaft sleeve is formed by splicing at least two shaft sleeve pieces, and the positioning hole in the positioning sleeve is configured as a conical structure; the inner surface of the shaft sleeve piece is configured as an arc surface adapted to the stirring shaft, and the outer surface of the shaft sleeve piece is configured as a conical surface adapted to the positioning hole; The end of the shaft sleeve is constructed with a limiting plate adapted to the end of the positioning sleeve, the end of the positioning sleeve is constructed with a plurality of threaded holes, and the limiting plate is constructed with through holes adapted to the threaded holes; The shaft sleeve piece is inserted into the gap between the stirring shaft and the positioning sleeve and is fixed to the end of the positioning sleeve through a fastener adapted to the threaded hole.

10. The slurry barrel stirring tank according to claim 1, characterized in that: The tank body also includes a bearing and a bearing seat. An opening adapted for the stirring shaft is configured at the center of the upper end of the tank body. The bearing seat is disposed at the opening. The stirring shaft is connected to the bearing seat via the bearing. And / or, a vertically arranged guide tube is further provided in the tank body, the stirring shaft passes through the middle of the guide tube, some stirring blades are provided in the guide tube, and some stirring blades are provided below the guide tube.

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