A crystallizer stirring device

CN224723682UActive Publication Date: 2026-09-08YIDU JIHONG CHEM CO LTD
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Patent Information

Application Number
CN202521858926.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-29
Publication Date
2026-09-08
Estimated Expiration
2035-08-29

AI Technical Summary

Technical Problem

[0003]在氟硅酸钠生产结晶时为了获得理想的晶体,结晶槽的操作条件至关重要,在结晶时需要进行适度的搅拌,来保证反应物和反应产物均匀混合,但是传统的搅拌组件搅拌效率不理想,搅拌效率低下,并且搅拌时会存在晶体在槽底或壁面结疤的情况,进而导致结晶的纯度不佳,因此存在一定的弊端

Benefits of technology

[0011]The beneficial effects of this utility model are as follows: When the stirring frame rotates, it drives three first gears to revolve around the center. At the same time, the first gears drive the stirring blades through the support plate to stir the material inside the crystallization tank, increasing the uniformity of stirring. When the stirring frame rotates, the three second gears roll along the fixed outer gear ring. The tooth structure of the outer gear ring forces the second gears to rotate. The second gears transmit their rotation to the first gears through the rotating shaft, thereby driving the stirring blades to rotate around the central axis of the first gear, thus forming multi-stage stirring and improving the stirring effect. When the half gear rotates, it drives the inner gear ring to rotate intermittently. The inner gear ring drives the vertical scraper and the arc-shaped scraper at its bottom to move. The vertical scraper rotates along the inner wall of the crystallization tank, scraping the material attached to the inner wall of the crystallization tank. At the same time, the vertical scraper drives the arc-shaped scraper to rotate at the inner bottom of the crystallization tank, scraping the material at the inner bottom of the crystallization tank, preventing the material from accumulating in the inner part and at the bottom, ensuring the smooth progress of the crystallization process, and improving its practicality.

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Abstract

This utility model relates to the field of crystallizers, specifically a crystallizer stirring device, including a crystallization tank. A feed pipe is installed at one end of the top of the crystallization tank. When the stirring frame rotates, it drives the stirring blades to stir the material inside the crystallization tank, increasing the uniformity of stirring. When the stirring frame rotates, three second gears roll along a fixed outer gear ring. The tooth structure of the outer gear ring forces the second gears to rotate, thereby driving the stirring blades to rotate around the central axis of the first gear, thus forming multi-stage stirring and improving the stirring effect. When the half gear rotates, it drives the inner gear ring to rotate intermittently. The inner gear ring drives the vertical scraper and the arc-shaped scraper at its bottom to move. The vertical scraper rotates along the inner wall of the crystallization tank, scraping the material attached to the inner wall of the crystallization tank. At the same time, the vertical scraper drives the arc-shaped scraper to rotate at the inner bottom of the crystallization tank, scraping the material at the inner bottom of the crystallization tank, preventing the material from accumulating in the inner part and at the bottom, ensuring the smooth progress of the crystallization process, and improving practicality.
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Description

Technical Field

[0001] This utility model relates to the field of crystallizers, specifically to a crystallizer stirring device. Background Technology

[0002] Sodium fluorosilicate is an inorganic compound, usually appearing as a white or pale yellow crystalline solid, and sometimes as a colorless hexagonal crystal. It is odorless and tasteless, but hygroscopic. Sodium fluorosilicate has a wide range of industrial applications. In the glass industry, it acts as a brightener, giving glass a unique milky white color while improving its corrosion resistance. In the ceramics and enamel industries, it acts as a flux, lowering the melting temperature and improving the whiteness and gloss of the products. In wood preservation, sodium fluorosilicate effectively prevents wood decay and insect infestation. In the pesticide industry, it is used to manufacture insecticides and defoliants. Furthermore, sodium fluorosilicate can be used as a coagulant for acid-resistant mortar and acid-resistant concrete, as well as a water fluoridation agent, providing essential fluoride for drinking water and industrial water.

[0003] In the production and crystallization of sodium fluorosilicate, the operating conditions of the crystallization tank are crucial to obtaining ideal crystals. During crystallization, appropriate stirring is required to ensure uniform mixing of reactants and products. However, traditional stirring components have unsatisfactory stirring efficiency and may cause crystals to form scales on the bottom or walls of the tank, resulting in poor crystal purity. Therefore, they have certain drawbacks. Utility Model Content

[0004] This utility model addresses the technical problems existing in the prior art by providing a crystallizer stirring device.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A crystallizer stirring device includes a crystallization tank. A feed pipe is installed at one top end of the crystallization tank, and a discharge pipe is installed at one bottom end of the crystallization tank. A fixed frame is installed at the top of the crystallization tank, and a stirring motor is installed on the inner top of the fixed frame. A drive pulley is installed on the output shaft of the stirring motor. A driven pulley is installed at the top end of the crystallization tank away from the feed pipe. The drive pulley and the driven pulley are connected by a transmission belt. A stirring assembly is provided on the inner top of the crystallization tank, and a scraping assembly is provided on the inner wall of the crystallization tank. After the stirring motor is started, it drives the drive pulley to rotate, which drives the driven pulley to rotate synchronously through the transmission belt, thereby transmitting power to the stirring assembly and the scraping assembly. The feed pipe is used to transport the material to be crystallized into the crystallization tank, and the discharge pipe is used to discharge the crystallized product.

[0006] Furthermore, the stirring assembly includes a stirring frame installed on the inner top of the crystallization tank. The top of the stirring frame passes through the crystallization tank via a rotating shaft and is connected to a drive pulley. A stirring rod is installed at the center of the bottom of the stirring frame, and several stirring paddles are installed on the outside of the stirring rod. The stirring frame drives the stirring rod and stirring paddles to make circular motions in the crystallization tank for uniform stirring.

[0007] Furthermore, a first gear is installed at each of the three corners at the bottom of the stirring rack. A support plate is installed at the bottom of the first gear, and a stirring blade is installed at the bottom of the support plate away from the first gear. When the stirring rack rotates, it drives the three first gears to revolve around the center, and simultaneously drives the stirring blade to stir the material inside the crystallization tank, thereby increasing the uniformity of stirring.

[0008] Furthermore, a second gear is installed at each of the three corners at the top of the stirring rack. The bottom of the second gear passes through the stirring rack via a rotating shaft and is connected to the first gear. An external gear ring is installed on the top inner side of the crystallization tank and outside the rotating shaft of the stirring rack. The external gear ring meshes with the three second gears. The second gear transmits its rotation to the first gear through the rotating shaft, thereby driving the stirring blades to rotate around the central axis of the first gear, thus forming multi-stage stirring and achieving a better stirring effect.

[0009] Furthermore, the scraping assembly includes a half gear installed at one end of the top inner side of the crystallization tank. The top of the half gear passes through the crystallization tank via a rotating shaft and is connected to a driven pulley. An internal gear ring is installed at one end of the top inner wall of the crystallization tank. The outer ring surface of the internal gear ring is rotatably connected to the inner wall of the crystallization tank, and the half gear and the internal gear ring mesh with each other. When the half gear rotates, it will drive the internal gear ring to rotate intermittently. The internal gear ring drives the vertical scraper and the arc-shaped scraper at its bottom to move.

[0010] Furthermore, vertical scrapers are symmetrically installed at both ends of the bottom of the internal gear ring, which are in contact with the inner wall of the crystallization tank. An arc-shaped scraper is installed at one end of the bottom of the two vertical scrapers, which is in contact with the inner bottom of the crystallization tank. The vertical scrapers rotate along the inner wall of the crystallization tank, scraping the material attached to the inner wall of the crystallization tank. At the same time, the vertical scrapers drive the arc-shaped scrapers to rotate at the inner bottom of the crystallization tank, scraping the material at the inner bottom of the crystallization tank, preventing the material from accumulating in the inner part and at the bottom.

[0011] The beneficial effects of this utility model are as follows: When the stirring frame rotates, it drives three first gears to revolve around the center. At the same time, the first gears drive the stirring blades through the support plate to stir the material inside the crystallization tank, increasing the uniformity of stirring. When the stirring frame rotates, the three second gears roll along the fixed outer gear ring. The tooth structure of the outer gear ring forces the second gears to rotate. The second gears transmit their rotation to the first gears through the rotating shaft, thereby driving the stirring blades to rotate around the central axis of the first gear, thus forming multi-stage stirring and improving the stirring effect. When the half gear rotates, it drives the inner gear ring to rotate intermittently. The inner gear ring drives the vertical scraper and the arc-shaped scraper at its bottom to move. The vertical scraper rotates along the inner wall of the crystallization tank, scraping the material attached to the inner wall of the crystallization tank. At the same time, the vertical scraper drives the arc-shaped scraper to rotate at the inner bottom of the crystallization tank, scraping the material at the inner bottom of the crystallization tank, preventing the material from accumulating in the inner part and at the bottom, ensuring the smooth progress of the crystallization process, and improving its practicality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the crystallization tank of this utility model; Figure 3 This is a bottom view of the internal structure of the crystallization tank of this utility model; Figure 4 This is a schematic diagram of the structure of the stirring assembly and scraping assembly of this utility model.

[0013] The attached diagram lists the components represented by each number as follows: 1. Crystallization tank; 2. Feed pipe; 3. Discharge pipe; 4. Fixed frame; 5. Stirring motor; 6. Drive pulley; 7. Driven pulley; 8. Transmission belt; 9. Stirring assembly; 10. Scraper assembly; 11. Stirring frame; 12. Stirring rod; 13. Stirring paddle; 14. First gear; 15. Support plate; 16. Stirring blade; 17. External gear ring; 18. Second gear; 19. Half gear; 20. Internal gear ring; 21. Vertical scraper; 22. Arc-shaped scraper. Detailed Implementation

[0014] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0015] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0016] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0017] Example 1 Figure 1 This is a schematic diagram of the overall structure of a crystallizer stirring device provided in an embodiment of the present invention. Figure 3 This is a bottom view schematic diagram of the internal structure of the crystallization tank of this utility model. (See diagram below.) Figure 1 , Figure 3 As shown, the device includes a crystallization tank 1, a feed pipe 2 installed at one top end of the crystallization tank 1, a discharge pipe 3 installed at one bottom end of the crystallization tank 1, a fixed frame 4 installed at the top of the crystallization tank 1, a stirring motor 5 installed on the inner top of the fixed frame 4, a drive pulley 6 installed on the output shaft of the stirring motor 5, a driven pulley 7 installed at the top end of the crystallization tank 1 away from the feed pipe 2, the drive pulley 6 and the driven pulley 7 are connected by a transmission belt 8, a stirring assembly 9 is provided on the inner top of the crystallization tank 1, and a scraping assembly 10 is provided on the inner wall of the crystallization tank 1.

[0018] After the stirring motor 5 starts, it drives the active pulley 6 to rotate, which drives the driven pulley 7 to rotate synchronously through the transmission belt 8, thereby transmitting power to the stirring assembly 9 and the scraping assembly 10. The feed pipe 2 is used to transport the material to be crystallized into the crystallization tank 1, and the discharge pipe 3 is used to discharge the crystallized product. The stirring assembly 9 mixes and stirs the solution by rotating to promote the uniformity of crystallization. The scraping assembly 10 scrapes the residue on the inner wall and bottom of the crystallization tank 1 by mechanical movement to prevent material accumulation from affecting the crystallization efficiency.

[0019] Figure 2This is a schematic diagram of the internal structure of the crystallization tank of this utility model. Figure 3 This is a bottom view schematic diagram of the internal structure of the crystallization tank of this utility model. (See diagram below.) Figure 2 , Figure 3 As shown, the stirring assembly 9 includes a stirring frame 11 installed on the inner top of the crystallization tank 1. The top of the stirring frame 11 is connected to the drive pulley 6 after passing through the crystallization tank 1 via a rotating shaft. A stirring rod 12 is installed at the center of the bottom of the stirring frame 11, and several stirring paddles 13 are installed on the outside of the stirring rod 12.

[0020] The drive pulley 6 drives the stirring frame 11 to rotate via the rotating shaft. The stirring frame 11 further drives the stirring rod 12 and the stirring paddle 13 to make circular motion in the crystallization tank 1 for uniform stirring.

[0021] A first gear 14 is installed at each of the three corners at the bottom of the mixing rack 11. A support plate 15 is installed at the bottom of the first gear 14. A mixing blade 16 is installed at the bottom of the support plate 15 away from the first gear 14.

[0022] When the stirring rack 11 rotates, it drives the three first gears 14 to revolve around the center. At the same time, the first gears 14 drive the stirring blades 16 through the support plate 15 to stir the material inside the crystallization tank 1, thereby increasing the uniformity of stirring.

[0023] Second gears 18 are installed at the three corners of the top of the stirring rack 11. The bottom of the second gears 18 passes through the stirring rack 11 via a rotating shaft and is connected to the first gear 14. An external gear ring 17 is installed on the top inner side of the crystallization tank 1 and outside the rotating shaft of the stirring rack 11. The external gear ring 17 meshes with the three second gears 18.

[0024] When the stirring rack 11 rotates, the three second gears 18 roll along the fixed outer gear ring 17. The tooth structure of the outer gear ring 17 forces the second gears 18 to rotate. The second gears 18 transmit their rotation to the first gear 14 through the rotating shaft, thereby driving the stirring blades 16 to rotate around the central axis of the first gear 14, thus forming multi-stage stirring and achieving better stirring effect.

[0025] Figure 3 This is a bottom view of the internal structure of the crystallization tank of this utility model. Figure 4 This is a schematic diagram of the stirring assembly and scraping assembly of this utility model. Figure 3 , Figure 4 As shown, the scraping assembly 10 includes a half gear 19 installed at one end of the top inner side of the crystallization tank 1. The top of the half gear 19 passes through the crystallization tank 1 via a rotating shaft and is connected to the driven pulley 7. An internal gear ring 20 is installed at one end of the top inner sidewall of the crystallization tank 1. The outer ring surface of the internal gear ring 20 is rotatably connected to the inner sidewall of the crystallization tank 1, and the half gear 19 and the internal gear ring 20 mesh with each other.

[0026] When the driven pulley 7 rotates, it drives the half gear 19 to rotate through the shaft. Since the half gear 19 meshes with the internal gear ring 20, the rotation of the half gear 19 will drive the internal gear ring 20 to rotate intermittently. The internal gear ring 20 drives the vertical scraper 21 and the arc-shaped scraper 22 at its bottom to move.

[0027] Example 2 Based on the above embodiments, this embodiment also makes the following improvements, such as... Figure 3 As shown, Vertical scrapers 21 are symmetrically installed at both ends of the bottom of the internal gear ring 20 and fit against the inner wall of the crystallization tank 1. An arc-shaped scraper 22 is installed at one end of the bottom of the two vertical scrapers 21 and fits against the inner bottom of the crystallization tank 1.

[0028] The vertical scraper 21 rotates along the inner wall of the crystallization tank 1, scraping away the material adhering to the inner wall of the crystallization tank 1. At the same time, the vertical scraper 21 drives the arc-shaped scraper 22 to rotate at the bottom of the inner side of the crystallization tank 1, scraping away the material at the bottom of the inner side of the crystallization tank 1, preventing the material from accumulating in the inner side and at the bottom, and ensuring the smooth progress of the crystallization process.

[0029] The implementation principle of the feeding device for sodium fluorosilicate crystallization in this embodiment of the present invention is as follows: When using the device, after the stirring motor 5 is started, it drives the driving pulley 6 to rotate, which drives the driven pulley 7 to rotate synchronously through the transmission belt 8, thereby transmitting power to the stirring assembly 9 and the scraping assembly 10. The feed pipe 2 is used to transport the material to be crystallized into the crystallization tank 1, and the discharge pipe 3 is used to discharge the crystallized product. The driving pulley 6 drives the stirring frame 11 to rotate through the rotating shaft. The stirring frame 11 further drives the stirring rod 12 and the stirring paddle 13 to make circular motion in the crystallization tank 1 for uniform stirring. When the stirring frame 11 rotates, it drives the three first gears 14 to revolve around the center. At the same time, the first gears 14 drive the stirring blades 16 through the support plate 15 to stir the material inside the crystallization tank 1, increasing the uniformity of stirring. When the stirring frame 11 rotates, the three second gears 18 rotate along the fixed outer gear ring. 17. The outer gear ring 17 rotates, and the tooth structure of the outer gear ring 17 forces the second gear 18 to rotate. The second gear 18 transmits its rotation to the first gear 14 through the shaft, thereby driving the stirring blade 16 to rotate around the central axis of the first gear 14, thus forming multi-stage stirring and improving the stirring effect. When the driven pulley 7 rotates, it drives the half gear 19 to rotate through the shaft. Since the half gear 19 meshes with the inner gear ring 20, the rotation of the half gear 19 will drive the inner gear ring 20 to rotate intermittently. The inner gear ring 20 drives the vertical scraper 21 and the arc scraper 22 at its bottom to move. The vertical scraper 21 rotates along the inner wall of the crystallization tank 1, scraping the material attached to the inner wall of the crystallization tank 1. At the same time, the vertical scraper 21 drives the arc scraper 22 to rotate at the inner bottom of the crystallization tank 1, scraping the material at the inner bottom of the crystallization tank 1, preventing the material from accumulating in the inner part and bottom, ensuring the smooth progress of the crystallization process, and improving practicality.

[0030] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0031] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0032] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A crystallizer stirring device, characterized in that, The crystallization tank (1) includes a feed pipe (2) installed at one top end of the crystallization tank (1), a discharge pipe (3) installed at one bottom end of the crystallization tank (1), a fixed frame (4) installed at the top of the crystallization tank (1), a stirring motor (5) installed on the inner top of the fixed frame (4), a drive pulley (6) installed on the output shaft of the stirring motor (5), a driven pulley (7) installed at the top end of the crystallization tank (1) away from the feed pipe (2), the drive pulley (6) and the driven pulley (7) are connected by a transmission belt (8), a stirring assembly (9) is provided on the inner top of the crystallization tank (1), and a scraping assembly (10) is provided on the inner wall of the crystallization tank (1). The scraping assembly (10) includes a half gear (19) installed at one end of the inner top of the crystallization tank (1). The top of the half gear (19) passes through the crystallization tank (1) via a rotating shaft and is connected to the driven pulley (7). An internal gear ring (20) is installed at one end of the inner wall of the crystallization tank (1). The outer ring surface of the internal gear ring (20) is rotatably connected to the inner wall of the crystallization tank (1), and the half gear (19) and the internal gear ring (20) mesh with each other. The bottom ends of the internal gear ring (20) are symmetrically equipped with vertical scrapers (21) that fit against the inner wall of the crystallization tank (1). The bottom ends of the two vertical scrapers (21) are jointly equipped with arc-shaped scrapers (22) that fit against the inner bottom of the crystallization tank (1).

2. The crystallizer stirring device according to claim 1, characterized in that, The stirring assembly (9) includes a stirring frame (11) installed on the inner top of the crystallization tank (1). The top of the stirring frame (11) is connected to the drive pulley (6) after passing through the crystallization tank (1) via a rotating shaft. A stirring rod (12) is installed at the bottom center of the stirring frame (11). Several stirring paddles (13) are installed on the outside of the stirring rod (12).

3. The crystallizer stirring device according to claim 2, characterized in that, The stirring rack (11) has a first gear (14) installed at each of the three corners at the bottom. A support plate (15) is installed at the bottom of the first gear (14). A stirring blade (16) is installed at the bottom of the support plate (15) away from the first gear (14).

4. A crystallizer stirring device according to claim 3, characterized in that, The top three corners of the stirring rack (11) are each equipped with a second gear (18). The bottom of the second gear (18) passes through the stirring rack (11) via a rotating shaft and is connected to the first gear (14). An external gear ring (17) is installed on the inner top of the crystallization tank (1) and outside the rotating shaft of the stirring rack (11). The external gear ring (17) meshes with the three second gears (18).