Material mixing box for paper production

By designing a mixing tank with a combination of support legs, mixing chamber, and stirring rod, the problem of uneven mixing caused by pulp accumulation was solved. This enabled multi-stage mixing and screening of the pulp, ensuring uniform mixing of the pulp and complete coating coverage, thus improving the mixing quality of the pulp.

CN224113827UActive Publication Date: 2026-04-14JINAN QIRUI INFORMATION TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-02
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

The pulp is added to the existing mixing tank at different times, and some pulp accumulates at the bottom, making it difficult for the stirring rod to contact the bottom, resulting in uneven mixing and affecting the pulp mixing effect.

Method used

A mixing tank comprising support legs, a first mixing chamber, and a second mixing chamber is designed. Utilizing a combination structure of mixing cylinder and stirring rods, multi-stage mixing and screening of pulp is achieved through centrifugal action and the cooperation of multi-stage stirring rods, ensuring uniform mixing of the pulp.

Benefits of technology

The design of centrifugal force and multi-stage stirring rods achieves uniform mixing and screening of pulp, ensuring the effect of pulp mixing. The coating is sprayed through nozzles to ensure that the coating completely covers the pulp, thereby improving the mixing quality of the pulp.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of paper processing, and particularly relates to a material mixing box for paper production, which comprises supporting legs, a first material mixing cabin and a second material mixing cabin are respectively and fixedly mounted at the tops of the supporting legs, the first material mixing cabin is positioned above the second material mixing cabin and is communicated with the inside of the second material mixing cabin, and a material mixing barrel is movably connected in the first material mixing cabin. A first rotating shaft is fixedly mounted at the bottom of the mixing barrel, the first rotating shaft extends out of the second mixing cabin through one end of the first mixing cabin, a first motor is fixedly mounted at the bottom of the second mixing cabin, an output shaft of the first motor is in transmission connection with one end, far away from the mixing barrel, of the first rotating shaft, and first stirring rods are further distributed in the mixing barrel. According to the material mixing box for paper production, paper pulp accumulated at the bottom in the material mixing barrel is mixed through the centrifugal effect, and the first stirring rod in the material mixing barrel with the constant height is matched with the rotating material mixing barrel to stir and mix the paper pulp with different heights in the material mixing barrel, so that the paper pulp mixing effect is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of paper processing technology, and in particular to a mixing box for paper production. Background Technology

[0002] Paper processing refers to the process of transforming raw paper or semi-finished paper into products that meet specific uses through a series of mechanical and chemical treatments. In the paper production process, mixing tanks are mainly used to mix different types of pulp or chemical additives to ensure the consistency and uniformity of paper quality.

[0003] Most existing mixing methods involve a rotating stirring rod inside the mixing tank, which presents the following problems in actual operation:

[0004] The stirring rod rotates to mix the various types of pulp injected into the mixing tank. Due to the different times when the pulp is added, some pulp accumulates at the bottom of the mixing tank. The stirring rod has difficulty contacting the pulp accumulated at the bottom, resulting in uneven mixing and affecting the pulp mixing effect. Utility Model Content

[0005] In order to overcome the defects of the prior art mentioned above, the inventors conducted in-depth research and, after a great deal of creative work, completed this utility model.

[0006] Specifically, the technical problem to be solved by this utility model is to provide a mixing box for paper production, so as to solve the technical problem that the pulp is added at different times in the current mixing box, some pulp is accumulated at the bottom of the mixing box, and the stirring rod is difficult to contact the pulp accumulated at the bottom, resulting in uneven mixing and affecting the pulp mixing effect.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] A mixing box for paper production includes support legs. A first mixing chamber and a second mixing chamber are fixedly installed on the top of the support legs respectively. The first mixing chamber is located above the second mixing chamber and is connected to the interior of the second mixing chamber. A mixing cylinder is movably connected in the first mixing chamber. A first rotating shaft is fixedly installed at the bottom of the mixing cylinder. The first rotating shaft extends from one end of the first mixing chamber to the outside of the second mixing chamber.

[0009] A first motor is fixedly installed at the bottom of the second mixing chamber. The output shaft of the first motor is connected to the end of the first rotating shaft away from the mixing cylinder. A first stirring rod is also arranged in the mixing cylinder perpendicular to the first rotating shaft.

[0010] As an improved technical solution, a baffle cylinder is fixedly installed on the inner side of the first mixing chamber, and the baffle cylinder is in contact with the inner wall of the first mixing chamber. The mixing cylinder is movably connected in the first mixing chamber through the baffle cylinder, and the baffle cylinder and the mixing cylinder are in clearance fit.

[0011] As an improved technical solution, a discharge trough communicating with the second mixing chamber is provided on the outer side of the baffle cylinder, and a leakage hole corresponding to the discharge trough is provided at one end of the mixing cylinder extending into the baffle cylinder, and the leakage holes are distributed in a ring array around the mixing cylinder.

[0012] As an improved technical solution, the first rotating shaft extends into the second mixing chamber and is fixedly installed at one end with a first stop bar and a second stop bar, and the second stop bar is distributed parallel above the first stop bar. A second stirring rod adapted to the second mixing chamber is also provided between the first stop bar and the second stop bar, and the end of the second stirring rod near the first stop bar is inclined downward.

[0013] As an improved technical solution, a second rotating shaft is also movably connected to the mixing cylinder and is perpendicular to the first stirring rod. The first stirring rod is movably connected to the support leg through the second rotating shaft. A second motor is fixedly installed at the end of the first mixing chamber away from the second mixing chamber. The output shaft of the second motor is connected to the second rotating shaft through the end of the mixing cylinder extending outside the first mixing chamber.

[0014] As an improved technical solution, the first mixing chamber is provided with a feed pipe at the end away from the second mixing chamber, and the feed pipe extends into the first mixing chamber with one end located above the mixing cylinder, and the bottom of the second mixing chamber is provided with a discharge pipe.

[0015] As an improved technical solution, a bracket is also fixedly installed on the outside of the first mixing chamber. A paint tank is fixedly installed on the first mixing chamber via the bracket, and an injection pipe for adding paint is fixedly installed on the top of the paint tank.

[0016] As an improved technical solution, a connecting rod is also fixedly installed on the bracket, and a paint pump is installed at the other end of the connecting rod. The paint pump is connected to the paint tank through a pipeline. A conveying pipe is provided between the paint pump and the first mixing chamber. A nozzle corresponding to the discharge trough is provided at one end of the conveying pipe extending into the first mixing chamber.

[0017] After adopting the above technical solution, the beneficial effects of this utility model are:

[0018] 1. This utility model uses centrifugal force to mix the pulp accumulated at the bottom of the mixing cylinder, and uses a first stirring rod in the mixing cylinder at a constant height to stir and mix the pulp at different heights in the mixing cylinder in conjunction with the rotating mixing cylinder, thereby ensuring the pulp mixing effect.

[0019] 2. In this utility model, pulp mixtures smaller than the aperture of the discharge hole are discharged from the mixing cylinder through the discharge hole and discharged into the second mixing chamber through the corresponding discharge trough, thereby completing the screening of different pulps.

[0020] 3. In this utility model, the pulp mixture after preliminary mixing is further mixed in the second mixing chamber by means of the first and second baffles, and the second stirring rod is tilted to better fit the shape of the second mixing chamber, and finally discharged from the second mixing chamber through the discharge pipe, so as to realize multi-stage mixing of different pulps.

[0021] 4. In this utility model, the coating is sprayed onto the pulp mixture in the discharge trough through a nozzle connected to the conveying pipe, so that the uncovered coating can enter the second mixing chamber for re-covering, thereby making the coating more completely cover the initially mixed pulp mixture. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a three-dimensional structural diagram of the mixing box for paper production according to this utility model.

[0024] Figure 2 This is a cross-sectional view of the mixing box for paper production according to this utility model.

[0025] Figure 3 This is a schematic diagram of the mixing cylinder and baffle cylinder of the mixing box for paper production according to this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the first and second stirring rods of the mixing box for paper production according to this utility model.

[0027] Figure 5 This is a schematic diagram of the paint tank and paint pump of the mixing box for paper production according to this utility model.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Support leg; 2. First mixing chamber; 3. Second mixing chamber; 4. Mixing cylinder; 5. First rotating shaft; 6. First motor; 7. First stirring rod; 8. Baffle cylinder; 9. Discharge chute; 10. Leakage hole; 11. First stop rod; 12. Second stop rod; 13. Second stirring rod; 14. Second rotating shaft; 15. Second motor; 16. Feed pipe; 17. Discharge pipe; 18. Support; 19. Connecting rod; 20. Paint tank; 21. Injection pipe; 22. Paint pump; 23. Delivery pipe; 24. Nozzle. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0032] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0033] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0034] like Figures 1 to 5As shown in the figure, this embodiment provides a mixing box for paper production. This mixing box includes support legs 1. A first mixing chamber 2 and a second mixing chamber 3 are fixedly mounted on the top of the support legs 1. The first mixing chamber 2 is located above the second mixing chamber 3 and communicates with the interior of the second mixing chamber 3. A mixing cylinder 4 is movably connected to the first mixing chamber 2. A first rotating shaft 5 is fixedly mounted on the bottom of the mixing cylinder 4. The first rotating shaft 5 extends from one end of the first mixing chamber 2 to the outside of the second mixing chamber 3. A first motor 6 is fixedly mounted on the bottom of the second mixing chamber 3. The output shaft of the first motor 6 is drively connected to the end of the first rotating shaft 5 away from the mixing cylinder 4. First stirring rods 7 are also arranged in the mixing cylinder 4, perpendicular to the first rotating shaft 5. Leg 1 provides support for the first mixing chamber 2 and the second mixing chamber 3. After the pulp in the first mixing chamber 2 is initially mixed, it is sent to the second mixing chamber 3 for further mixing. The first mixing chamber 2 is provided with a flange for taking out the mixture from the mixing cylinder 4. The mixing cylinder 4 can be driven by the first rotating shaft 5 to rotate around the axis center of the first mixing chamber 2, thereby mixing the pulp accumulated at the bottom of the mixing cylinder 4 through centrifugal force. The first motor 6 can drive the first rotating shaft 5 through its output shaft to drive the mixing cylinder 4 to rotate in the first mixing chamber 2. The height of the mixing cylinder 4 remains unchanged during rotation. The first stirring rod 7 can cooperate with the rotating mixing cylinder 4 to stir and mix the pulp at different heights in the mixing cylinder 4, thereby ensuring the pulp mixing effect.

[0035] A baffle cylinder 8 is fixedly installed on the inner side of the first mixing chamber 2, and the baffle cylinder 8 is in contact with the inner wall of the first mixing chamber 2. The mixing cylinder 4 is movably connected in the first mixing chamber 2 through the baffle cylinder 8, and the baffle cylinder 8 and the mixing cylinder 4 are in clearance fit. The mixing cylinder 4 can rotate in the first mixing chamber 2 under the restriction of the baffle cylinder 8, thereby restricting the movement of the mixing cylinder 4 in the first mixing chamber 2.

[0036] The outer side of the baffle cylinder 8 is provided with a discharge trough 9 that communicates with the second mixing chamber 3. The end of the mixing cylinder 4 extending into the baffle cylinder 8 is provided with a leakage hole 10 corresponding to the discharge trough 9. The leakage holes 10 are arranged in a ring array around the mixing cylinder 4. When the mixing cylinder 4 rotates in the baffle cylinder 8, pulp mixtures smaller than the aperture of the leakage holes 10 are discharged into the second mixing chamber 3 through the discharge trough 9 corresponding to the leakage holes 10, thereby completing the screening of different pulps.

[0037] The first rotating shaft 5 extends into the second mixing chamber 3, where a first stop bar 11 and a second stop bar 12 are fixedly installed at one end. The second stop bar 12 is parallel to the first stop bar 11 above it. A second stirring rod 13 adapted to the second mixing chamber 3 is also provided between the first stop bar 11 and the second stop bar 12. The end of the second stirring rod 13 near the first stop bar 11 is inclined downward. The first rotating shaft 5 can drive the first stop bar 11 and the second stop bar 12 to further mix the initially mixed pulp mixture in the second mixing chamber 3. The second stop bar 12 is inclined to better fit the shape of the second mixing chamber 3.

[0038] A second rotating shaft 14, which is perpendicular to the first stirring rod 7, is also movably connected to the mixing cylinder 4. The first stirring rod 7 is movably connected to the support leg 1 through the second rotating shaft 14. A second motor 15 is fixedly installed at the end of the first mixing chamber 2 away from the second mixing chamber 3. The output shaft of the second motor 15 is connected to the second rotating shaft 14 through the end of the mixing cylinder 4 that extends to the outside of the first mixing chamber 2. The second motor 15 can drive the second rotating shaft 14 to drive the first stirring rod 7 to rotate in the mixing cylinder 4, and mix the pulp in conjunction with the rotating mixing cylinder 4.

[0039] The first mixing chamber 2 is also provided with a feed pipe 16 at the end away from the second mixing chamber 3. The feed pipe 16 extends into the first mixing chamber 2 and one end is located above the mixing cylinder 4. The bottom of the second mixing chamber 3 is provided with a discharge pipe 17. The feed pipe 16 can convey different types of pulp into the mixing cylinder 4 without affecting the rotation of the mixing cylinder 4. The discharge pipe 17 can discharge the pulp mixture after the mixing is completed in the second mixing chamber 3.

[0040] A bracket 18 is also fixedly installed on the outside of the first mixing chamber 2. A paint tank 20 is fixedly installed on the first mixing chamber 2 via the bracket 18. A filling pipe 21 for adding paint is fixedly installed on the top of the paint tank 20. The bracket 18 fixes the paint tank 20 on the first mixing chamber 2.

[0041] A connecting rod 19 is also fixedly installed on the bracket 18. A paint pump 22 is installed at the other end of the connecting rod 19. The paint pump 22 is connected to the paint tank 20 through a pipe. A conveying pipe 23 is provided between the paint pump 22 and the first mixing chamber 2. One end of the conveying pipe 23 extending into the first mixing chamber 2 is provided with a nozzle 24 corresponding to the discharge trough 9. The paint pump 22 is fixedly installed on the bracket 18 through the connecting rod 19. The paint pump 22 can spray the raw materials in the paint tank 20 into the discharge trough 9 through the nozzle 24 connected to the conveying pipe 23, so that the paint can more completely cover the initially mixed pulp mixture.

[0042] In use, the support legs 1 provide support for the first mixing chamber 2 and the second mixing chamber 3. Different types of pulp are fed into the mixing cylinder 4 inside the first mixing chamber 2 through the feed pipe 16. The output shaft of the first motor 6 drives the connected first rotating shaft 5 to rotate, causing the mixing cylinder 4 to rotate around the axis center of the first mixing chamber 2. This centrifugal force mixes the pulp accumulated at the bottom of the mixing cylinder 4. The first stirring rod 7 in the mixing cylinder 4, which has a constant height, works in conjunction with the rotating mixing cylinder 4 to stir and mix the pulp at different heights, thus ensuring the pulp mixing effect. The second motor 15 drives the second rotating shaft 14 to drive the first stirring rod 7 to mix the pulp at different heights in the mixing cylinder 4. At the same time, the baffle 8, which is attached to the inner wall of the first mixing chamber 2, restricts the movement of the mixing cylinder 4 in the first mixing chamber 2. When the mixing cylinder 4 rotates, the pulp is mixed through the drain hole 1. The pulp mixture smaller than the aperture of the orifice 10 is discharged from the mixing cylinder 4 and discharged into the second mixing chamber 3 through the corresponding discharge chute 9, thereby completing the screening of different pulps. During this process, the first rotating shaft 5 connected to the output shaft of the first motor 6 drives the first stop rod 11 and the second stop rod 12 to further mix the initially mixed pulp mixture in the second mixing chamber 3. The second stirring rod 13 is tilted to better fit the shape of the second mixing chamber 3 and is finally discharged from the second mixing chamber 3 through the discharge pipe 17, realizing multi-stage mixing of different pulps. After the mixing is completed, the paint is extracted from the paint tank 20 by the paint pump 22 and sprayed onto the pulp mixture in the discharge chute 9 through the nozzle 24 connected to the conveying pipe 23, so that the uncovered paint can enter the second mixing chamber 3 to cover it again, thereby making the paint more completely cover the initially mixed pulp mixture.

[0043] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A mixing box for paper production, comprising support legs (1), characterized in that: The top of the support leg (1) is fixedly installed with a first mixing chamber (2) and a second mixing chamber (3). The first mixing chamber (2) is located above the second mixing chamber (3) and is connected to the interior of the second mixing chamber (3). A mixing cylinder (4) is movably connected in the first mixing chamber (2). A first rotating shaft (5) is fixedly installed at the bottom of the mixing cylinder (4). The first rotating shaft (5) extends from one end of the first mixing chamber (2) to the outside of the second mixing chamber (3). The bottom of the second mixing chamber (3) is fixedly installed with a first motor (6). The output shaft of the first motor (6) is connected to the end of the first rotating shaft (5) away from the mixing cylinder (4). The mixing cylinder (4) is also arranged with a first stirring rod (7) that is perpendicular to the first rotating shaft (5).

2. The mixing box for paper production according to claim 1, characterized in that: A baffle cylinder (8) is fixedly installed on the inner side of the first mixing chamber (2), and the baffle cylinder (8) is in contact with the inner wall of the first mixing chamber (2). The mixing cylinder (4) is movably connected in the first mixing chamber (2) through the baffle cylinder (8), and the baffle cylinder (8) and the mixing cylinder (4) are in clearance fit.

3. The mixing box for paper production according to claim 2, characterized in that: The outer side of the baffle cylinder (8) is provided with a discharge trough (9) that communicates with the second mixing chamber (3). The end of the mixing cylinder (4) extending into the baffle cylinder (8) is provided with a leakage hole (10) corresponding to the discharge trough (9). The leakage holes (10) are arranged in a ring array around the mixing cylinder (4).

4. The mixing box for paper production according to claim 1, characterized in that: The first rotating shaft (5) extends into the second mixing chamber (3) and a first stop bar (11) and a second stop bar (12) are fixedly installed at one end. The second stop bar (12) is parallel to the first stop bar (11) above it. A second stirring rod (13) adapted to the second mixing chamber (3) is also provided between the first stop bar (11) and the second stop bar (12). The end of the second stirring rod (13) near the first stop bar (11) is inclined downward.

5. The mixing box for paper production according to claim 4, characterized in that: The mixing cylinder (4) is also movably connected to a second rotating shaft (14) that is perpendicular to the first stirring rod (7). The first stirring rod (7) is movably connected to the support leg (1) through the second rotating shaft (14). A second motor (15) is fixedly installed at the end of the first mixing chamber (2) away from the second mixing chamber (3). The output shaft of the second motor (15) is connected to the second rotating shaft (14) through the end of the mixing cylinder (4) that extends to the outside of the first mixing chamber (2).

6. The mixing box for paper production according to claim 1, characterized in that: The first mixing chamber (2) is provided with a feed pipe (16) at one end away from the second mixing chamber (3). The feed pipe (16) extends into the first mixing chamber (2) and is located above the mixing cylinder (4). The bottom of the second mixing chamber (3) is provided with a discharge pipe (17).

7. The mixing box for paper production according to claim 6, characterized in that: A bracket (18) is fixedly installed on the outside of the first mixing chamber (2). A paint tank (20) is fixedly installed on the first mixing chamber (2) via the bracket (18). A filling pipe (21) for filling paint is fixedly installed on the top of the paint tank (20).

8. The mixing box for paper production according to claim 7, characterized in that: A connecting rod (19) is also fixedly installed on the bracket (18). A paint pump (22) is installed at the other end of the connecting rod (19). The paint pump (22) is connected to the paint tank (20) through a pipe. A conveying pipe (23) is provided between the paint pump (22) and the first mixing chamber (2). One end of the conveying pipe (23) extending into the first mixing chamber (2) is provided with a nozzle (24) corresponding to the discharge trough (9).