Automatic starch cooking equipment for papermaking
By combining a rotating steam diversion component and a stirring mechanism, the problems of uneven heating and stirring of starch milk are solved, achieving an efficient and uniform starch cooking process. This is suitable for the rapid gelatinization of high-concentration starch milk, simplifies the mechanical structure, and reduces energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEFEI HONGTU COLOUR PINTING CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-01
AI Technical Summary
In existing papermaking equipment, the heating of starch slurry is uneven, especially at high concentrations where clumping is likely to occur. Furthermore, the lack of coordination between stirring and steam injection affects the uniformity of the slurry and production efficiency.
It employs a rotating steam distribution component and a stirring mechanism, using 360° three-dimensional heating and staggered steam pipes and stirring blades, combined with mechanical seals and gear ring meshing transmission, to achieve uniform steam distribution and synchronous stirring, avoiding independent motor drive.
It enables rapid and uniform gelatinization of starch milk, reduces energy consumption, meets the needs of efficient continuous production, prevents clumping, and improves the uniformity and efficiency of the starch cooking process.
Smart Images
Figure CN224186095U_ABST
Abstract
Description
An automatic starch cooking device for papermaking Technical Field
[0001] This utility model relates to the field of papermaking technology, and more specifically, to an automatic starch cooking device for papermaking. Background Technology
[0002] In the papermaking industry, starch, used as a surface sizing agent, reinforcing agent, and other functional additives, requires gelatinization (i.e., cooking the starch to form a colloidal solution) to function effectively. Existing equipment typically introduces steam into the reactor through fixed steam pipes, resulting in steam being sprayed from only a single direction or a limited area. This leads to uneven heating of the starch slurry in the vertical direction, and the equipment is often driven by independent motors, lacking coordination with the steam injection process. When the stirring blades rotate at a fixed speed, it is difficult to create dynamic shearing action with the steam flow, resulting in slow water absorption and expansion of starch granules. This is especially problematic in high-concentration starch slurries, where clumping is likely to occur, affecting the uniformity of the slurry. Summary of the Invention
[0003] To solve the above-mentioned technical problems, this utility model provides an automatic starch cooking device for papermaking, including a vessel body and a cover plate located on the top of the vessel body. An air inlet pipe extending into the interior of the vessel body is installed at the middle of the top of the cover plate. The bottom end of the air inlet pipe is located at the top of the interior cavity of the vessel body. A rotating steam diversion assembly is provided at the bottom end of the air inlet pipe. A circular diversion pipe is connected to the outside of the steam diversion assembly. Several steam pipes of different lengths are connected to the bottom of the diversion pipe. A support plate is provided on the outer wall of the inner side of the diversion pipe. A rotating stirring mechanism passes through the support plate. A first crown tooth is provided at the top of the stirring mechanism. A first toothed ring that meshes with the first crown tooth is installed on the bottom wall of the cover plate.
[0004] In a preferred embodiment, the diversion assembly includes a gas tank located below the intake pipe, a mechanical seal pipe installed on the top of the gas tank, the intake pipe communicating with the inside of the gas tank through the mechanical seal pipe, and a plurality of branch pipes connected to the diversion pipe communicating with the outside of the gas tank.
[0005] The steam pipe and the branch pipe are connected to the inside of the gas tank through the branch pipe.
[0006] In a preferred embodiment, a drive motor is also installed on the top of the cover plate, and the output shaft of the drive motor extends through the cover plate into the interior of the vessel. A second crown tooth is installed at the bottom end of the output shaft of the drive motor, and a second toothed ring that meshes with the second crown tooth is installed on the top of the gas tank.
[0007] In a preferred embodiment, the stirring mechanism includes a bearing fixed on a support plate and a stirring shaft inserted into the bearing. The first crown tooth is fixed to the top of the stirring shaft, the stirring shaft extends to the bottom of the inner cavity of the vessel, and stirring blades are provided on the outer wall of the stirring shaft.
[0008] The stirring shaft and several steam pipes are arranged alternately.
[0009] In a preferred embodiment, an upwardly extending connecting plate is fixed to the outer wall of the diversion pipe, a turntable bearing is installed on the bottom wall of the cover plate, and the top of the connecting plate is fixedly connected to the turntable bearing.
[0010] In a preferred embodiment, a plurality of feed pipes are installed on the cover plate, a discharge pipe is connected to the bottom of the vessel body, and a plurality of support rods are provided at the bottom of the vessel body.
[0011] The technical effects and advantages of this utility model are as follows:
[0012] 1. This utility model achieves 360° three-dimensional heating through a rotating steam pipe. Combined with different length designs, it solves the problem of uneven steam distribution in traditional cooking equipment. It is suitable for the rapid gelatinization of high-concentration starch milk, realizes the high efficiency and uniformity of the starch cooking process, and meets the needs of continuous production.
[0013] 2. No separate stirring motor is required. The stirring shaft is driven to rotate by the rotation of the distributor pipe, which simplifies the mechanical structure while ensuring that the stirring and steam flow are synchronized, thus reducing energy consumption. Attached Figure Description
[0014] Figure 1 is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 is a schematic diagram of the interior of the vessel body of this utility model;
[0016] Figure 3 is a schematic diagram of the interior of the vessel body of this utility model from another angle.
[0017] Explanation of reference numerals in the attached drawings: 1. vessel body; 2. cover plate; 3. air inlet pipe; 4. branch pipe; 5. steam pipe; 6. support plate; 7. first crown tooth; 8. first toothed ring; 9. gas tank; 10. mechanical seal pipe; 11. branch pipe; 12. drive motor; 13. second crown tooth; 14. second toothed ring; 15. bearing; 16. stirring shaft; 17. stirring blade; 18. connecting plate; 19. turntable bearing; 20. feed pipe; 21. discharge pipe; 22. support rod. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0019] As shown in Figures 1-3, an automatic starch cooking device for papermaking includes a vessel body 1 and a cover plate 2 located on top of the vessel body 1. An air inlet pipe 3 extending into the interior of the vessel body 1 is installed at the center of the top of the cover plate 2. The bottom end of the air inlet pipe 3 is located at the top of the inner cavity of the vessel body 1. A rotating steam diversion assembly is provided at the bottom end of the air inlet pipe 3. A circular diversion pipe 4 is connected to the outside of the steam diversion assembly. Several steam pipes 5 of different lengths are connected to the bottom of the diversion pipe 4. A support plate 6 is provided on the outer wall of the inner side of the diversion pipe 4. A rotating stirring mechanism passes through the support plate 6. A first crown tooth 7 is provided on the top of the stirring mechanism. A first toothed ring 8 that meshes with the first crown tooth 7 is installed on the bottom wall of the cover plate 2.
[0020] Based on the above, during operation, external steam is introduced through the air inlet pipe 3. The steam diversion component, together with the diversion pipe 4 and steam pipes 5 of different lengths, evenly distributes the steam to different height areas of the vessel body 1. When the diversion pipe 4 rotates, the stirring mechanism is driven to rotate and stir the material through the support plate 6. The first crown tooth 7 meshes with the first tooth ring 8, so that the stirring mechanism rotates as the diversion pipe 4 rotates.
[0021] Furthermore, the use of steam pipes of varying lengths 5 creates a vertical temperature gradient, preventing localized overheating. The combination of dynamic steam injection and mechanical stirring accelerates the gelatinization of starch granules by absorbing water, thus improving uniformity.
[0022] The diversion assembly includes a gas tank 9 located below the intake pipe 3. A mechanical seal pipe 10 is installed on the top of the gas tank 9. The intake pipe 3 is connected to the inside of the gas tank 9 through the mechanical seal pipe 10. Several branch pipes 11 connected to the diversion pipe 4 are connected to the outside of the gas tank 9.
[0023] The steam pipe 5 and the branch pipe 4 are connected to the inside of the gas tank 9 through the branch pipe 11;
[0024] Based on the above, steam enters the gas tank 9 through the inlet pipe 3 and the mechanical seal pipe 10, and is diverted to the annular diversion pipe 4 through the branch pipe 11, and then ejected from the steam pipe 5. The mechanical seal pipe 10 allows the gas tank 9 to rotate while keeping the steam passage sealed to prevent leakage.
[0025] Furthermore, the steam is evenly distributed to the branch pipe 4 through the bronchus pipe 11, and combined with the length difference of the steam pipe 5, 360° three-dimensional heating is achieved.
[0026] A drive motor 12 is also installed on the top of the cover plate 2. The output shaft of the drive motor 12 extends through the cover plate 2 into the interior of the vessel body 1. A second crown tooth 13 is installed at the bottom end of the output shaft of the drive motor 12. A second toothed ring 14 that meshes with the second crown tooth 13 is installed on the top of the gas tank 9.
[0027] Based on the above, after the drive motor 12 starts, it drives the gas tank 9, the diversion pipe 4 and the steam pipe 5 to rotate around the central axis of the vessel body 1 through the meshing of the second crown tooth 13 and the second tooth ring 14. The rotating steam pipe 5 moves and sprays steam, forming a dynamic heating area.
[0028] Furthermore, the drive motor 12 drives the second crown gear 13 to ensure stable rotation of the steam diversion component and uniform coverage of the heating area. The dynamic frequency of steam injection can be controlled by adjusting the speed of the drive motor 12 to adapt to different starch gelatinization requirements.
[0029] The stirring mechanism includes a bearing 15 fixed on a support plate 6 and a stirring shaft 16 inserted into the bearing 15. The first crown tooth 7 is fixed at the top of the stirring shaft 16. The stirring shaft 16 extends to the bottom of the inner cavity of the vessel body 1. Stirring blades 17 are provided on the outer wall of the stirring shaft 16.
[0030] The stirring shaft 16 and several steam pipes 5 are arranged alternately;
[0031] Based on the above, when the diversion pipe 4 rotates, the support plate 6 drives the stirring shaft 16 to rotate around the central axis of the vessel body 1 through the bearing 15. The first crown tooth 7 meshes with the first tooth ring 8, so that the stirring shaft 16 will rotate on its own during the rotation around the central axis of the vessel body 1. The stirring blades 17 and the steam pipe 5 are staggered and cut the steam flow during the stirring process to enhance the contact between the material and the steam.
[0032] Furthermore, by connecting the diversion pipe 4 to the stirring mechanism, no independent motor is needed. The stirring is achieved by utilizing the rotational kinetic energy of the diversion pipe 4, thus reducing energy consumption. The stirring shaft 16 and the steam pipe 5 are staggered to avoid interference, which is suitable for mixing high-viscosity starch milk and prevents clumping.
[0033] An upwardly extending connecting plate 18 is fixed on the outer side wall of the diversion pipe 4, and a turntable bearing 19 is installed on the bottom wall of the cover plate 2. The top end of the connecting plate 18 is fixedly connected to the turntable bearing 19.
[0034] Based on the above, the diverter 4 is fixed to the rotating part of the turntable bearing 19 by the connecting plate 18. The fixing part of the turntable bearing 19 is connected to the bottom wall of the cover plate 2. The turntable bearing 19 supports the rotation of the diverter 4, reducing rotational friction and vibration.
[0035] Furthermore, the turntable bearing 19 provides stable support, ensuring the smooth rotation of the diversion pipe 4 over a long period of time and reducing mechanical wear. The rigid connection between the connecting plate 18 and the turntable bearing 19 prevents the connection of the steam pipe 5 from loosening or leaking due to vibration.
[0036] The cover plate 2 is equipped with several feed pipes 20, the bottom end of the vessel body 1 is connected to a discharge pipe 21, and the bottom of the vessel body 1 is provided with several support rods 22.
[0037] Based on the above, starch milk and medicinal liquid are added to the reactor body 1 through different feed pipes 20, and discharged through the discharge pipe 21 after gelatinization.
[0038] Based on the above, the rotating steam pipe 5 of this utility model achieves 360° three-dimensional heating. Combined with different length designs, it solves the problem of uneven steam distribution in traditional cooking equipment, is suitable for rapid gelatinization of high-concentration starch milk, realizes high efficiency and uniformity in the starch cooking process, and meets the needs of continuous production.
[0039] No separate stirring motor is required. The stirring shaft 16 is driven to rotate by the rotation of the diversion pipe 4, which simplifies the mechanical structure while ensuring that the stirring and steam flow are synchronized, thus reducing energy consumption.
[0040] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. An automatic starch cooking device for papermaking, comprising a vessel body and a cover plate located on top of the vessel body, characterized in that, An air inlet pipe extending into the interior of the vessel is installed at the top center of the cover plate. The bottom end of the air inlet pipe is located at the top of the vessel's internal cavity. A rotating steam diversion assembly is provided at the bottom end of the air inlet pipe. A circular diversion pipe is connected to the outside of the steam diversion assembly. Several steam pipes of different lengths are connected to the bottom of the diversion pipe. A support plate is provided on the outer wall of the inner side of the diversion pipe. A rotating stirring mechanism passes through the support plate. A first crown tooth is provided at the top of the stirring mechanism. A first toothed ring that meshes with the first crown tooth is installed on the bottom wall of the cover plate.
2. The automatic starch cooking equipment for papermaking according to claim 1, characterized in that, The diversion assembly includes a gas tank located below the intake pipe, with a mechanical seal pipe installed on the top of the gas tank. The intake pipe is connected to the inside of the gas tank through the mechanical seal pipe, and several branch pipes connected to the diversion pipe are connected to the outside of the gas tank. The steam pipe and the diversion pipe are connected to the inside of the gas tank through the branch pipes.
3. The automatic starch cooking equipment for papermaking according to claim 2, characterized in that: A drive motor is also installed on the top of the cover plate. The output shaft of the drive motor extends through the cover plate into the interior of the vessel. A second crown tooth is installed at the bottom of the output shaft of the drive motor. A second toothed ring that meshes with the second crown tooth is installed on the top of the gas tank.
4. The automatic starch cooking equipment for papermaking according to claim 1, characterized in that: The stirring mechanism includes a bearing fixed on a support plate and a stirring shaft inserted into the bearing. The first crown tooth is fixed at the top of the stirring shaft, which extends to the bottom of the inner cavity of the vessel. Stirring blades are provided on the outer wall of the stirring shaft. The stirring shaft and several steam pipes are arranged alternately.
5. The automatic starch cooking equipment for papermaking according to claim 1, characterized in that, An upwardly extending connecting plate is fixed to the outer wall of the diversion pipe, and a turntable bearing is installed on the bottom wall of the cover plate. The top of the connecting plate is fixedly connected to the turntable bearing.
6. The automatic starch cooking equipment for papermaking according to claim 4, characterized in that: The cover plate is equipped with several feed pipes, the bottom of the vessel is connected to a discharge pipe, and the bottom of the vessel is provided with several support rods.