Anti-scaling layered structure of sodium acetate crystallization reaction kettle
By employing a combination design of multi-layer stirring blades, conical guide platform, and vibration assembly in the sodium acetate crystallization reactor, the problems of scaling and stratification were solved, the heat transfer efficiency and reaction uniformity of the reactor were improved, product quality and output were guaranteed, and maintenance costs were reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINYANG KAIYUAN BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-08
AI Technical Summary
Existing sodium acetate crystallization reactors are prone to scaling and stratification during the crystallization process, which affects heat transfer efficiency, reaction uniformity, and product quality, and the existing structure is difficult to effectively solve these problems.
The design employs a combination of multi-layered stirring blades, a conical guide platform, a wall scraping device, and a vibration assembly. Through the synergistic effects of stirring, guiding, scraping, and vibration, scaling and stratification are prevented, thereby improving the heat transfer efficiency and reaction uniformity of the reactor.
It effectively prevents scaling and stratification inside the reactor, improves product quality and yield, reduces maintenance costs, and extends the service life of the reactor.
Smart Images
Figure CN224208042U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of chemical equipment technology, and in particular to an anti-scaling layered structure for a sodium acetate crystallization reactor. Background Technology
[0002] In chemical production processes, the sodium acetate crystallization reactor is a key piece of equipment used for the sodium acetate crystallization reaction. During the sodium acetate crystallization reaction, scaling and stratification are prone to occur inside the reactor due to factors such as changes in the concentration of the reaction solution, temperature differences, and the characteristics of the solution itself.
[0003] Scaling is mainly caused by the fact that during the crystallization process, as solute precipitates and crystals grow, some crystals tend to adhere to the inner wall of the reactor, gradually accumulating to form a hard scale layer. This scale layer not only affects the heat transfer efficiency of the reactor, causing uneven temperature distribution inside the reactor and thus affecting the reaction, but also increases the difficulty of cleaning and maintenance costs, and shortens the service life of the reactor.
[0004] Layering occurs due to differences in density and solubility of different components in the solution, as well as uneven stirring during the reaction process. When a solution separates into layers, the concentrations in each layer are inconsistent, leading to different reaction rates and consequently affecting product quality and yield.
[0005] Currently, most existing sodium acetate crystallization reactors use ordinary stirring devices, which can only achieve basic stirring functions and cannot effectively solve the problem of scaling on the inner wall of the reactor, nor can they prevent solution stratification. Although some reactors have been equipped with auxiliary structures to alleviate scaling and stratification problems, the effects are not ideal and cannot meet the requirements of efficient operation of the reactor and stable product quality in actual production.
[0006] To address this issue, an anti-scaling layered structure for a sodium acetate crystallization reactor has been invented to resolve the problems mentioned in the background art. Utility Model Content
[0007] The purpose of this invention is to provide an anti-scaling and anti-stratification structure for a sodium acetate crystallization reactor. Through optimized design of the stirring assembly, flow guiding structure, wall scraping device, and vibration assembly, the invention effectively prevents scaling and stratification inside the reactor, improves the heat transfer efficiency and reaction uniformity of the reactor, ensures product quality and output, reduces maintenance costs, and extends the service life of the reactor.
[0008] The anti-scaling and layered structure of the sodium acetate crystallization reactor provided in this application adopts the following technical solution: it includes a reactor and a support frame, wherein a drive motor is provided on the top of the reactor, a stirring shaft is provided at the output end of the drive motor, a stirring assembly located inside the reactor is provided on the stirring shaft, a connecting frame is provided on the outside of the reactor, a vibration frame is provided on the connecting frame, and a vibration assembly that can vibrate the vibration frame is provided on the support frame.
[0009] Optionally, the stirring assembly includes multiple layers of stirring blades, all of which are on a stirring shaft. The stirring blades include horizontal blades and inclined blades. The horizontal blades are used to stir the solution in the reactor horizontally, and the inclined blades are used to push the solution to flow up and down in the reactor.
[0010] Optionally, the horizontal blades and the inclined blades are arranged alternately in the vertical direction.
[0011] Optionally, a conical guide platform is provided at the bottom of the reactor, and a spiral guide vane is connected to the bottom of the stirring shaft. The spiral guide vane is in contact with the conical guide platform, and the conical surface of the conical guide platform can guide the solution to flow upward more smoothly. It is in contact with the bottom of the reactor to guide the solution at the bottom of the reactor upward.
[0012] Optionally, the stirring shaft is equipped with a wall scraping device, which includes a connecting rod connected to the stirring shaft. The other end of the connecting rod is provided with a connecting cylinder, into which the connecting rod is inserted. A reset spring is provided inside the connecting cylinder, with one end of the reset spring fixedly connected to the connecting cylinder and the other end connected to the connecting rod. A scraper is provided at the other end of the connecting cylinder, which contacts the inner wall of the reactor. When the stirring shaft rotates, it drives the wall scraping device to scrape off the scale on the inner wall of the reactor.
[0013] Optionally, an elastic scraper is provided on the side of the scraper near the inner wall of the reactor. The elastic scraper fits tightly against the inner wall of the reactor to more effectively remove scale.
[0014] Optionally, the vibration assembly includes a vibration motor, which is fixed on a vibration frame. A vibration compression spring is provided at the bottom of the vibration frame, and the other end of the vibration compression spring is connected to a support frame.
[0015] In summary, this application includes the following beneficial technical effects:
[0016] 1. Stirring assembly: The multi-layer stirring blades include horizontal and inclined blades, which are arranged in an alternating manner to fully stir the solution from both horizontal and vertical directions, effectively preventing the solution from separating into layers, making the reaction more uniform, and improving product quality.
[0017] 2. Conical guide platform and spiral guide vanes: The conical guide platform at the bottom of the reactor, combined with the spiral guide vanes, can guide the solution to flow upward more smoothly, promote solution circulation, further prevent the solution from depositing and stratifying at the bottom of the reactor, and improve reaction efficiency.
[0018] 3. Scraping Device: The scraping device installed on the stirring shaft uses a return spring to ensure close contact between the scraper and the inner wall of the reactor. As the stirring shaft rotates, it effectively scrapes away scale buildup on the reactor's inner wall, keeping it clean, improving heat transfer efficiency, reducing cleaning and maintenance costs, and extending the reactor's service life. The elastic scraper blades on the scraper blades can fit more closely to the reactor's inner wall, enhancing the scale removal effect.
[0019] 4. Vibration Components: The vibration components, consisting of a vibration motor and a vibration spring, enable the vibration frame to vibrate. This vibration further promotes the mixing of the solution, prevents the solution from separating into layers, and also helps prevent local crystal deposition in the reaction vessel, thereby improving the stability and uniformity of the reaction. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of the device. Figure I ;
[0021] Figure 2 This is a schematic diagram of the overall structure of the device. Figure II ;
[0022] Figure 3 This is the front view of the device;
[0023] Figure 4 This is a cross-sectional schematic diagram of the overall structure of this device;
[0024] Figure 5 This is a side view of the device;
[0025] Figure 6 This is a top view of the device;
[0026] Figure 7 This is a schematic diagram of the internal components of the reactor in this device;
[0027] Among them, 1. Reactor, 2. Support frame, 3. Drive motor, 4. Stirring shaft, 5. Stirring assembly, 6. Connecting frame, 7. Vibrating frame, 8. Vibrating assembly, 9. Stirring blade, 10. Horizontal blade, 11. Inclined blade, 12. Conical guide platform, 13. Spiral guide blade, 14. Wall scraping device, 15. Connecting rod, 16. Connecting cylinder, 17. Reset spring, 18. Scraper rod, 19. Elastic scraper, 20. Vibration motor, 21. Vibration spring. Detailed Implementation
[0028] The present application will be further described in detail below with reference to the accompanying drawings. In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model.
[0029] Reference Figure 1 , Figure 2 , Figure 4 One embodiment shown is as follows: The anti-scaling and stratification structure includes a reaction vessel 1 and a support frame 2. A drive motor 3 is fixedly installed on the top of the reaction vessel 1. The output end of the drive motor 3 is fixedly connected to the stirring shaft 4 via a coupling, thereby enabling the drive motor 3 to drive the stirring shaft 4 to rotate. The stirring shaft 4 passes through the top of the reaction vessel 1 and extends into the interior of the reaction vessel 1. A stirring assembly 5 is installed on the stirring shaft 4. A connecting frame 6 is welded to the outside of the reaction vessel 1. The connecting frame 6 is detachably connected to the vibration frame 7 via bolts. A vibration assembly 8 is installed on the support frame 2. In this embodiment, the drive motor 3, stirring shaft 4, and stirring assembly 5 constitute a stirring drive system, and the connecting frame 6, vibration frame 7, and vibration assembly 8 constitute a vibration system. The components cooperate with each other to provide a basic structure for mixing the solution in the reaction vessel 1 and preventing scaling and stratification.
[0030] The implementation principle of the above embodiment is as follows: when the drive motor 3 is working, it transmits power to the stirring shaft 4 through the coupling, causing the stirring shaft 4 to rotate, thereby making the stirring assembly 5 stir the solution in the reaction vessel 1; when the vibration assembly 8 is working, it applies vibration to the reaction vessel 1 through the vibration frame 7, and the stirring and vibration work together to prevent the solution from separating and scaling.
[0031] Reference Figure 4 , Figure 7 One embodiment is shown where multiple layers of stirring blades 9 are sequentially installed on the stirring shaft 4 by welding. Each layer of stirring blades 9 includes horizontal blades 10 and inclined blades 11. The horizontal blades 10 are welded to the periphery of the stirring shaft 4, with their plane perpendicular to the stirring shaft 4, enabling horizontal stirring of the solution when the stirring shaft 4 rotates. The inclined blades 11 are also welded to the stirring shaft 4, forming a certain angle with the stirring shaft 4. When the stirring shaft 4 rotates, the inclined blades 11 can push the solution to flow up and down within the reaction vessel 1. In this embodiment, the multiple layers of stirring blades 9 are firmly connected to the stirring shaft 4, and the horizontal blades 10 and inclined blades 11 have clearly defined functions, working together to achieve multi-dimensional stirring of the solution. The inclined blades 11 also have protrusions to facilitate a larger contact area with the stirred material, improving the stirring effect.
[0032] The implementation principle of the above embodiment is as follows: the rotation of the stirring shaft 4 drives the multi-layer stirring blades 9 to rotate, the horizontal blades 10 cause the solution to flow in the horizontal direction, realizing the mixing of the solution in the plane; the inclined blades 11 promote the circulation of the solution in the vertical direction. The two types of blades work together to stir the solution in all directions and effectively prevent the solution from separating.
[0033] Reference Figure 1 , Figure 2 , Figure 5 One embodiment is shown where, on a stirring shaft 4 with multiple layers of stirring blades 9, the horizontal blades 10 and inclined blades 11 of each layer are installed alternately. Specifically, in two adjacent layers of stirring blades 9, the first layer has horizontal blades 10 installed first, and after a certain interval, the next layer has inclined blades 11 installed, and so on in a cyclical manner. In this embodiment, the alternating arrangement of the horizontal blades 10 and inclined blades 11 makes the stirring area more uniform and avoids the formation of blind spots in the solution during stirring.
[0034] The implementation principle of the above embodiment is as follows: when the stirring shaft 4 rotates, the horizontal blades 10 and the inclined blades 11 arranged in an alternating manner stir the solution in both horizontal and vertical directions. Under the action of forces in different directions, the solution is mixed more thoroughly, further improving the effect of preventing solution stratification.
[0035] Reference Figure 4 , Figure 7 One embodiment is shown whereby a conical guide platform 12 is fixedly installed at the bottom of the reactor 1 by welding, and a spiral guide blade 13 is fixedly connected to the bottom of the stirring shaft 4. The outer edge of the spiral guide blade 13 is tightly fitted with the conical surface of the conical guide platform 12. In this embodiment, the conical guide platform 12 is firmly connected to the reactor 1, and the spiral guide blade 13 is reliably connected to the stirring shaft 4. The two cooperate with each other to form a solution guiding structure. A discharge port is provided at the bottom of the conical guide platform 12, and the discharge port is closed by a cover plate.
[0036] The implementation principle of the above embodiment is as follows: the stirring shaft 4 drives the spiral guide vane 13 to rotate. During the rotation, the spiral guide vane 13 uses its characteristic of being in contact with the conical surface of the conical guide platform 12 to push the solution at the bottom of the reactor 1 upward along the conical surface of the conical guide platform 12, so as to promote the circulation of the solution, prevent the solution from depositing at the bottom of the reactor 1, further ensure the uniform mixing of the solution and avoid stratification.
[0037] Reference Figure 4 , Figure 7One embodiment is shown as follows: One end of a connecting rod 15 is fixed to the stirring shaft 4 by welding, and the other end of the connecting rod 15 is inserted into the connecting cylinder 16 and can slide within the connecting cylinder 16; a reset spring 17 is installed inside the connecting cylinder 16, one end of the reset spring 17 is welded to the bottom of the connecting cylinder 16, and the other end is fixedly connected to the connecting rod 15; a scraper 18 is fixed to the other end of the connecting cylinder 16 by welding, and the scraper 18 maintains contact with the inner wall of the reactor 1. In this embodiment, the connecting rod 15 is fixedly connected to the stirring shaft 4, and the reset spring 17, the connecting cylinder 16, and the scraper 18 form an elastic connection structure, ensuring that the scraper 18 can tightly fit against the inner wall of the reactor 1.
[0038] The implementation principle of the above embodiment is as follows: When the stirring shaft 4 rotates, it drives the wall scraping device 14 to rotate. During the rotation, the scraper 18 contacts the inner wall of the reactor 1 and scrapes off the scale on the inner wall. When it encounters a protruding scale, the scraper 18 is resisted, causing the connecting rod 15 to compress the reset spring 17 in the connecting cylinder 16. After passing the protrusion, the reset spring 17 pushes the connecting rod 15 to make the scraper 18 re-fit the inner wall, and continuously and effectively scrapes off the scale.
[0039] Reference Figure 4 , Figure 7 One embodiment is shown whereby an elastic scraper 19 is fixedly installed on the side of the scraper 18 near the inner wall of the reactor 1 using adhesive. The elastic scraper 19 has good elasticity and flexibility, and can closely conform to the curved surface of the inner wall of the reactor 1. In this embodiment, the elastic scraper 19 is firmly connected to the scraper 18, further enhancing the fit between the scraper 18 and the inner wall of the reactor 1.
[0040] The implementation principle of the above embodiment is as follows: when the scraper 18 rotates with the stirring shaft 4 to scrape off the scale, the elastic scraper 19, by virtue of its own elasticity, can better adapt to the irregular shape of the inner wall of the reactor 1, fill the tiny gaps between the scraper 18 and the inner wall, thereby scraping off the scale more effectively and improving the scraping effect.
[0041] Reference Figure 3 , Figure 5 One embodiment shown is as follows: the vibration motor 20 is fixedly mounted on the vibration frame 7 by bolts, one end of the vibration compression spring 21 is fixed to the bottom of the vibration frame 7 by welding, and the other end of the vibration compression spring 21 is connected to the support frame 2 by bolts. In this embodiment, the vibration motor 20 and the vibration frame 7 are firmly connected, and the vibration frame 7 and the support frame 2 form an elastic connection structure through the vibration compression spring 21.
[0042] The implementation principle of the above embodiment is as follows: When the vibration motor 20 is working, it generates vibration, which is transmitted to the vibration frame 7. The vibration frame 7 transmits the vibration to the reaction vessel 1 through the vibration spring 21. At the same time, the vibration spring 21 plays the role of buffering and adjusting the vibration amplitude, so as to promote more uniform mixing of the solution in the reaction vessel 1 and prevent the solution from separating and scaling.
[0043] The working principle of this device is as follows: The drive motor 3 drives the stirring shaft 4 to rotate. Among the multi-layered stirring blades 9, the horizontal blades 10 achieve horizontal stirring of the solution, while the inclined blades 11 push the solution up and down. Their staggered arrangement ensures more thorough stirring and prevents solution stratification. The conical guide platform 12 at the bottom of the reactor 1 works in conjunction with the spiral guide blades 13. When the spiral guide blades 13 rotate, they guide the bottom solution upwards along the conical surface, enhancing solution circulation. Simultaneously, the rotation of the stirring shaft 4 drives the wall scraping device 14. The reset spring 17 keeps the scraper 18 pressed tightly against the reactor wall to remove scale, and the elastic scraper 19 enhances the scraping effect. In the vibration assembly 8, the vibration motor 20 drives the vibration frame 7 to vibrate. The vibration is transmitted to the reactor 1 through the vibration spring 21, promoting solution mixing and reducing crystal deposition. All these structures work together, acting in multiple ways—stirring, guiding, scraping, and vibrating—to ensure stable reaction and prevent scaling and stratification problems.
[0044] The working principle of this device has been explained through the above embodiments. These embodiments only illustrate several implementation methods of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A scale-resistant, layered structure for a sodium acetate crystallization reactor, comprising a reactor (1) and a support frame (2), characterized in that: A drive motor (3) is provided on the top of the reactor (1), and a stirring shaft (4) is provided at the output end of the drive motor (3). A stirring assembly (5) located inside the reactor (1) is provided on the stirring shaft (4). A connecting frame (6) is provided on the outside of the reactor (1), and a vibration frame (7) is provided on the connecting frame (6). A vibration assembly (8) that can vibrate the vibration frame (7) is provided on the support frame (2).
2. The anti-scaling layered structure of the sodium acetate crystallization reactor according to claim 1, characterized in that: The stirring assembly (5) includes multiple layers of stirring blades (9), all of which are on the stirring shaft (4). The stirring blades (9) include horizontal blades (10) and inclined blades (11). The horizontal blades (10) are used to stir the solution in the reactor (1) in a horizontal direction, and the inclined blades (11) are used to push the solution to flow up and down in the reactor (1).
3. The anti-scaling layered structure of the sodium acetate crystallization reactor according to claim 2, characterized in that: The horizontal blades (10) and the inclined blades (11) are arranged alternately in the vertical direction.
4. The anti-scaling layered structure of the sodium acetate crystallization reactor according to claim 1, characterized in that: The bottom of the reactor (1) is provided with a conical guide platform (12), and the bottom of the stirring shaft (4) is connected with a spiral guide blade (13). The spiral guide blade (13) is in contact with the conical guide platform (12), and the conical surface of the conical guide platform (12) can guide the solution to flow upward more smoothly. The bottom of the reactor (1) is in contact with the conical guide platform (12) to guide the solution at the bottom of the reactor (1) upward.
5. The anti-scaling layered structure of the sodium acetate crystallization reactor according to claim 1, characterized in that: A wall scraping device (14) is provided on the stirring shaft (4). The wall scraping device (14) includes a connecting rod (15) connected to the stirring shaft (4). A connecting cylinder (16) is provided at the other end of the connecting rod (15). The connecting rod (15) is inserted into the connecting cylinder (16). A reset spring (17) is provided inside the connecting cylinder (16). One end of the reset spring (17) is fixedly connected to the connecting cylinder (16) and the other end is connected to the connecting rod (15). A scraper (18) is provided at the other end of the connecting cylinder (16). The scraper (18) contacts the inner wall of the reactor (1). When the stirring shaft (4) rotates, it drives the wall scraping device (14) to scrape off the scale on the inner wall of the reactor (1).
6. The anti-scaling layered structure of the sodium acetate crystallization reactor according to claim 5, characterized in that: An elastic scraper (19) is provided on the scraper near the inner wall of the reactor (1). The elastic scraper (19) fits tightly against the inner wall of the reactor (1) to more effectively remove scale.
7. The anti-scaling layered structure of the sodium acetate crystallization reactor according to claim 1, characterized in that: The vibration assembly (8) includes a vibration motor (20), which is fixed on the vibration frame (7). A vibration spring (21) is provided at the bottom of the vibration frame (7), and the other end of the vibration spring (21) is connected to the support frame (2).