A wall scraping mechanism for a preservative crystallization reactor

Abstract

This utility model discloses a wall-scraping mechanism for a preservative crystallizing reactor, including a crystallizing reactor body and a support frame. A rotating vertical rod is installed inside the crystallizing reactor body, and a baffle plate is installed on the outer side of the rotating vertical rod. L-shaped scrapers are installed on both sides of the rotating vertical rod, and the L-shaped scrapers are slidably connected to the inner wall of the crystallizing reactor body. A rotating ring is rotatably connected to the outer side of the baffle plate, and the rotating ring is slidably connected to the inner wall of the crystallizing reactor body. A groove is opened on one side of the rotating vertical rod, and a movable scraper is slidably connected to the inner wall of the groove. The movable scraper is installed at the bottom of the rotating ring. The height of the baffle plate and the movable scraper can be flexibly adjusted by a telescopic adjustment rod, breaking the limitation of the fixed working range of traditional wall-scraping mechanisms. When the amount of material produced is small, the height of the baffle plate can be lowered, causing the movable scraper to move upwards, extending the wall-scraping operation to the upper inner wall of the reactor body, effectively removing adhering materials in this area and avoiding long-term retention and scaling.

Description

Technical Field

[0001] This utility model relates to the field of crystallization kettle technology, specifically a wall scraping mechanism for a preservative crystallization kettle. Background Technology

[0002] In the food and chemical industries, the production of preservatives often involves crystallization processes. As the core equipment of this process, the operating efficiency and stability of the preservative crystallization reactor directly affect the purity, particle size, and production energy consumption of the product. During the crystallization process, due to factors such as temperature changes and concentration gradients, materials are prone to adhesion and scaling on the inner wall of the reactor. If not treated in time, it will not only lead to local overheating and abnormal crystallization morphology, but also reduce the heat exchange efficiency of the reactor and affect the overall process stability. Therefore, crystallization reactors are usually equipped with a wall scraping mechanism, which removes the material adhering to the wall surface through the rotational movement of scrapers and other components, allowing the material to re-participate in the crystallization cycle and ensuring the uniformity of the crystallization process. However, existing preservative crystallization reactors have significant limitations in actual production: because the internal volume of the crystallization reactor is fixed, while the amount of material in the production process often changes due to factors such as batch and capacity requirements (e.g., less material in small-batch production), the working range of the traditional crystallization reactor's wall scraping mechanism and stirring components is fixed, making it difficult to adapt to changes in the amount of material. When the amount of material is small, a large amount of material easily adheres to the upper inner wall of the reactor, and the scraper of the wall scraping mechanism can only act on the wall area close to the current material level, making it difficult to reach the upper layer of adhesion areas not covered by material. This causes this part of the material to remain for a long time and form scale. At the same time, the fixed range of the stirring components cannot fully mix the material scraped off from the upper layer into the main material below, resulting in material waste, reduced crystallization efficiency, and even affecting the purity of the final product.

[0003] Therefore, this utility model provides a wall scraping mechanism for a preservative crystallization reactor. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a wall scraping mechanism for a preservative crystallization reactor, thereby solving the aforementioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wall-scraping mechanism for a preservative crystallizing reactor, comprising a crystallizing reactor body and a support frame. A rotating vertical rod is disposed within the crystallizing reactor body, and a shielding plate is disposed on the outer side of the rotating vertical rod. L-shaped scrapers are disposed on both sides of the rotating vertical rod, and the L-shaped scrapers are slidably connected to the inner wall of the crystallizing reactor body. A rotating ring is rotatably connected to the outer side of the shielding plate, and the rotating ring is slidably connected to the inner wall of the crystallizing reactor body. A groove is formed on one side of the rotating vertical rod, and a movable scraper is slidably connected to the inner wall of the groove. The movable scraper is installed at the bottom of the rotating ring. A motor driving the rotating vertical rod and a telescopic adjustment rod for raising and lowering the shielding plate are installed at the top of the crystallizing reactor body, and the output end of the telescopic adjustment rod is installed at the top of the shielding plate.

[0006] Preferably, a feed telescopic pipe is installed on the crystallization vessel body, and an installation ring is installed at the bottom of the feed telescopic pipe. The installation ring is detachably connected to the bottom of the shielding plate, and a discharge pipe is provided at the bottom of the crystallization vessel body.

[0007] Preferably, one end of the L-shaped scraper is provided with a slant bar, and both slant bars are installed on both sides of the rotating vertical rod, with both slant bars corresponding to the position of the discharge pipe.

[0008] Preferably, a connecting ring is installed on the edge of the shielding disc, and the connecting ring is rotatably connected to the inner wall of the rotating ring.

[0009] Preferably, a limiting sleeve is provided on the inner side of the shielding disk to contact the rotating vertical rod, and a plurality of spherical rolling elements are embedded in the connecting ring, and the plurality of spherical rolling elements are slidably connected to the inner wall of the rotating ring.

[0010] Beneficial effects

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] (1) This utility model uses a telescopic adjustment rod to drive the baffle plate and the movable scraper to flexibly adjust the height, breaking the limitation of the fixed working range of the traditional wall scraping mechanism. When the amount of production material is small, the height of the baffle plate can be reduced to allow the movable scraper to move up and extend the wall scraping operation to the upper inner wall of the vessel, effectively removing the material adhering to the area and avoiding long-term retention and scaling.

[0013] (2) This utility model, through the shielding structure composed of the shielding plate and the rotating ring, forms a cover over the space above the material during the material rotation and stirring stage. By using physical barrier effect, it prevents the material from being thrown to the upper inner wall of the crystallizing vessel body due to the centrifugal force of rotation, thereby reducing the material adhesion to the upper inner wall from the source. The scraped material is reintegrated into the main material and participates in the crystallization cycle under the stirring effect formed by the rotation of the rotating vertical rod, ensuring that the crystallization process is stable and uniform. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0015] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a three-dimensional enlarged structural diagram of the L-shaped scraper of this utility model;

[0017] Figure 4 This is the utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Crystallizer body; 11. Support frame; 12. Feed telescopic pipe; 121. Mounting ring; 13. Discharge pipe; 14. Motor; 15. Telescopic adjustment rod; 2. Rotating vertical bar; 21. L-shaped scraper; 211. Slide groove; 22. Movable scraper; 23. Diagonal bar; 3. Baffle plate; 31. Rotating ring; 32. Restricting sleeve; 33. Connecting ring; 34. Spherical rolling element. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 A wall scraping mechanism for a preservative crystallization vessel includes a crystallization vessel body 1 and a support frame 11. A rotating vertical rod 2 is provided inside the crystallization vessel body 1, and a shielding plate 3 is provided on the outside of the rotating vertical rod 2.

[0021] Among them, L-shaped scrapers 21 are provided on both sides of the rotating vertical rod 2, and the L-shaped scrapers 21 are slidably connected to the inner wall of the crystallization vessel body 1.

[0022] A rotating ring 31 is rotatably connected to the outer side of the shielding plate 3. The rotating ring 31 is slidably connected to the inner wall of the crystallizing vessel body 1. A groove 211 is opened on one side of the rotating vertical rod 2. A movable scraper 22 is slidably connected to the inner wall of the groove 211. The movable scraper 22 is installed at the bottom of the rotating ring 31.

[0023] It should be noted that the shielding disc 3 described in this embodiment drives two movable scrapers 22 to rise and fall via a rotating ring 31.

[0024] The top of the crystallization vessel body 1 is equipped with a motor 14 that drives the rotating vertical rod 2 and a telescopic adjustment rod 15 that adjusts the height of the shielding plate 3. The output end of the telescopic adjustment rod 15 is installed on the top of the shielding plate 3.

[0025] Specifically, motor 14 drives the rotating plumb bob 2 to rotate as a power source. The L-shaped scrapers 21 on both sides of the rotating plumb bob 2 rotate synchronously with it. Since the L-shaped scrapers 21 are slidably connected to the inner wall of the crystallization vessel body 1, they can scrape the inner wall of the vessel during rotation. The telescopic adjustment rod 15 can adjust the height of the baffle plate 3. The rotating ring 31 rotatably connected to the outer side of the baffle plate 3 will rise and fall together with the baffle plate 3. The rotating ring 31 is slidably engaged with the inner wall of the crystallization vessel body 1. The movable scraper 22 at its bottom will slide along the slide groove 211 on the rotating plumb bob 2, thereby changing the height range of the scraping operation. During the entire operation, the L-shaped scraper 21 is responsible for cleaning the material adhering to the lower inner wall of the crystallization vessel. The movable scraper 22 is adapted to different material volume scenarios according to the height adjusted by the baffle plate 3, and scrapes off the material adhering to the upper inner wall of different height areas of the vessel inner wall, including when the material volume is small. The scraped material is removed by the rotating plumb bob 2. Under the stirring action generated by the rotation, the material is reintegrated into the main material to participate in the crystallization cycle, ensuring a stable and uniform crystallization process. This mechanism uses the telescopic adjustment rod 15 to flexibly adjust the height of the shielding plate 3 and the movable scraper 22, breaking the limitation of the fixed working range of the traditional wall scraping mechanism. When the amount of material produced is small, the height of the shielding plate 3 can be lowered to allow the movable scraper 22 to move upward, extending the wall scraping operation to the upper inner wall of the vessel, effectively removing the material adhering to this area and avoiding long-term retention and scaling. At the same time, the shielding structure composed of the shielding plate 3 and the rotating ring 31 covers the space above the material during the material rotation and stirring stage. By using physical barriers, the material is prevented from being thrown to the upper inner wall of the crystallizing vessel body 1 by the centrifugal force of rotation, reducing the material adhesion to the upper inner wall from the source. The scraped material is reintegrated into the main material to participate in the crystallization cycle under the stirring action generated by the rotation of the rotating vertical rod 2, ensuring a stable and uniform crystallization process.

[0026] In one embodiment of this utility model, such as Figures 1-4 As shown, a feed telescopic pipe 12 is installed on the crystallization vessel body 1, and an installation ring 121 is installed at the bottom of the feed telescopic pipe 12. The installation ring 121 is detachably connected to the bottom of the baffle plate 3. A discharge pipe 13 is provided at the bottom of the crystallization vessel body 1.

[0027] It should be noted that the feed telescopic tube 12 described in this embodiment feeds raw materials into the crystallization vessel body 1 below the rotating ring 31.

[0028] Specifically, the feed telescopic tube 12 can extend and retract with the height adjustment of the baffle plate 3. It is detachably connected to the baffle plate 3 through the bottom mounting ring 121, ensuring that the material is accurately fed into the internal space of the crystallizer body 1 below the rotating ring 31. The discharge tube 13 is used to discharge the material after crystallization. When the height of the baffle plate 3 is adjusted due to the amount of material, the feed telescopic tube 12 extends and retracts synchronously to ensure that the feed always corresponds to the effective reaction area. In conjunction with the wall scraping mechanism, the material can complete crystallization and wall scraping circulation within a reasonable space.

[0029] In one embodiment of this utility model, such as Figures 1-4 As shown, one end of the L-shaped scraper 21 is provided with a slant bar 23. Both slant bars 23 are installed on both sides of the rotating vertical rod 2, and both slant bars 23 correspond to the positions of the discharge pipe 13.

[0030] It should be noted that the upward curve of the slash 23 described in this embodiment is to avoid blocking the top opening of the discharge pipe 13.

[0031] Specifically, when the L-shaped scraper 21 rotates, the slant bar 23 at one end rotates synchronously with the rotating vertical rod 2. Since the slant bar 23 corresponds to the position of the discharge pipe 13 and the slant bar 23 is designed to be upturned, it can guide the material in the top area of ​​the discharge pipe 13 during the scraping and stirring of materials. By utilizing the characteristics of the upturned structure, it can prevent the material from accumulating and blocking the top of the discharge pipe 13, thus ensuring smooth discharge.

[0032] In one embodiment of this utility model, such as Figures 1-4 As shown, a connecting ring 33 is installed on the edge of the shielding plate 3, and the connecting ring 33 is rotatably connected to the inner wall of the rotating ring 31.

[0033] It should be noted that the shielding disk 3 described in this embodiment supports the rotating ring 31 through the connecting ring 33.

[0034] Specifically, the shielding plate 3 is rotatably connected to the inner wall of the rotating ring 31 via a connecting ring 33 installed on its edge. The connecting ring 33 provides stable support for the rotating ring 31, ensuring that the rotating ring 31 can rotate freely relative to the shielding plate 3 while rising and falling with it. This does not affect the rotating wall scraping operation performed by the movable scraper 22 at the bottom of the rotating ring 31, which rotates synchronously with the rotating vertical rod 2. This ensures the structural stability and motion coordination of the rotating ring 31 and the movable scraper 22 during height adjustment and rotating wall scraping.

[0035] In one embodiment of this utility model, such as Figures 1-4 As shown, a limiting sleeve 32 that contacts the rotating vertical rod 2 is provided on the inner side of the shielding plate 3, and several spherical rolling elements 34 are embedded in the connecting ring 33. The several spherical rolling elements 34 are slidably connected to the inner wall of the rotating ring 31.

[0036] Specifically, the shielding plate 3 increases the connection range with the rotating vertical rod 2 by limiting the sleeve 32, thereby increasing stability. Several spherical rolling elements 34 embedded in the connecting ring 33 are slidably connected to the inner wall of the rotating ring 31. When the rotating ring 31 rotates with the rotating vertical rod 2 and the movable scraper 22, the spherical rolling elements 34 roll between the contact surfaces of the connecting ring 33 and the rotating ring 31, converting the sliding friction between the two into rolling friction. This significantly reduces the frictional resistance when the rotating ring 31 rotates, making the rotation of the rotating ring 31 and the movable scraper 22 smoother and more stable. At the same time, it reduces component wear, extends the service life of the mechanism, and ensures that the movable scraper 22 can continuously and efficiently scrape the inner wall of the vessel.

[0037] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0038] Working principle: Motor 14 drives the rotating plumb rod 2 to rotate, and the L-shaped scrapers 21 on both sides of it rotate together. Because the L-shaped scrapers 21 are slidably connected to the inner wall of the crystallizing vessel body 1, they can scrape off the material adhering to the lower inner wall of the vessel. At the same time, the telescopic adjustment rod 15 can adjust the height of the shielding plate 3. The shielding plate 3 supports the rotating ring 31 to rise and fall synchronously through the connecting ring 33 on the edge. The movable scraper 22 at the bottom of the rotating ring 31 slides along the slide groove 211 of the rotating plumb rod 2, thereby changing the scraping height range to adapt to different material volume scenarios. Especially when the material volume is small, it can extend to the upper inner wall for scraping operations. The shielding plate 3 and the rotating plumb rod 2 are connected to the rotating plumb rod 2 to rotate. The shielding structure formed by the rotating ring 31 can prevent materials from being thrown to the upper inner wall due to centrifugal force, reducing adhesion from the source. The scraped material is reintegrated into the main material and participates in the crystallization cycle under the stirring action of the rotating vertical rod 2. In addition, the feed telescopic pipe 12 extends and retracts with the rise and fall of the shielding plate 3. It is connected to the shielding plate 3 through the mounting ring 121, accurately feeding the raw material into the reaction area below the rotating ring 31. The material is discharged in conjunction with the discharge pipe 13 at the bottom. The slant bar 23 at one end of the L-shaped scraper 21 rotates with the rotating vertical rod 2. The whole process ensures a stable and efficient crystallization process through dynamic adjustment of the scraping range, anti-adhesion design and efficient stirring cycle.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wall scraping mechanism for a preservative crystallization reactor, comprising a crystallization reactor body (1) and a support frame (11), characterized in that, A rotating plumb bob (2) is provided inside the crystallization vessel body (1), and a shielding plate (3) is provided on the outside of the rotating plumb bob (2). Both sides of the rotating vertical rod (2) are provided with L-shaped scrapers (21), and the L-shaped scrapers (21) are slidably connected to the inner wall of the crystallization vessel body (1); The shielding plate (3) is rotatably connected to a rotating ring (31) on the outside. The rotating ring (31) is slidably connected to the inner wall of the crystallization vessel body (1). A sliding groove (211) is provided on one side of the rotating vertical rod (2). A movable scraper (22) is slidably connected to the inner wall of the sliding groove (211). The movable scraper (22) is installed at the bottom of the rotating ring (31). The crystallization vessel body (1) is equipped with a motor (14) that drives the rotating vertical rod (2) and a telescopic adjustment rod (15) that adjusts the height of the shielding plate (3). The output end of the telescopic adjustment rod (15) is installed on the top of the shielding plate (3).

2. A wall scraping mechanism for a preservative crystallization kettle as defined in claim 1, wherein, The crystallizer body (1) is equipped with a feed telescopic pipe (12), and an installation ring (121) is installed at the bottom of the feed telescopic pipe (12). The installation ring (121) is detachably connected to the bottom of the shielding plate (3). The bottom of the crystallizer body (1) is provided with a discharge pipe (13).

3. A wall scraping mechanism for a preservative crystallization kettle as defined in claim 2, wherein, The L-shaped scraper (21) has a slant bar (23) at one end. Both slant bars (23) are installed on both sides of the rotating vertical rod (2), and both slant bars (23) correspond to the position of the discharge pipe (13).

4. A wall scraping mechanism for a preservative crystallization kettle as defined in claim 1, wherein, A connecting ring (33) is installed on the edge of the shielding plate (3), and the connecting ring (33) is rotatably connected to the inner wall of the rotating ring (31).

5. The preservative crystallization kettle wall scraping mechanism according to claim 4, characterized in that, The inner side of the shielding plate (3) is provided with a limiting sleeve (32) that contacts the rotating vertical rod (2). Several spherical rolling elements (34) are embedded in the connecting ring (33), and the several spherical rolling elements (34) are slidably connected to the inner wall of the rotating ring (31).

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