A decolorization apparatus for the production of acetylmethionine
By designing a composite motion stirring device, the problems of stirring dead zones and dispersion of large molecular impurities in the production of acetylmethionine were solved, achieving a more efficient decolorization effect. This device is suitable for decolorization equipment in the production of acetylmethionine.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI ZHONGMU ANDA PHARMACEUTICAL CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-30
AI Technical Summary
In the existing technology, there are dead zones in the stirring process of acetylmethionine production, which leads to local accumulation or uneven dispersion of activated carbon. Furthermore, large molecular polymer impurities are difficult to be sheared and dispersed by a single stirring rod, which reduces the adsorption efficiency of activated carbon.
A stirring device was designed, comprising a cylindrical silo, a cover plate, an asynchronous motor, a connecting shaft, a frustum, a stirring frame, and a lifting structure. The asynchronous motor drives the connecting shaft and the rotation component, enabling the stirring frame to simultaneously revolve and rotate. Combined with the annular corrugated groove and guide of the lifting component, a compound motion is achieved, increasing the stirring range and uniformity.
It effectively reduces dead zones in the stirring process, improves the mixing uniformity and adsorption efficiency of acetylmethionine solution and decolorizing agent, and is particularly suitable for treating high-liquid-level solutions, thus enhancing the decolorization effect.
Smart Images
Figure CN224422014U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of acetylmethionine production technology, specifically a decolorization device for the production of acetylmethionine. Background Technology
[0002] The production of acetylmethionine includes raw material preparation, condensation reaction, oxidation reaction, and salt formation and purification. Among these processes is a decolorization step, a crucial step in removing colored impurities generated during synthesis. This directly affects the appearance and purity of the finished product. Incomplete decolorization may result in a darker product color or excessive impurities, requiring corrective measures for optimization. A commonly used decolorization method is activated carbon decolorization. Activated carbon's porous structure adsorbs colored impurities and some polar organic matter. The crude acetylmethionine is added to an appropriate amount of solvent, heated and stirred until completely dissolved. Activated carbon is then added at 0.5%-2% of the solution volume or crude product weight, stirred evenly to ensure thorough adsorption of impurities. Finally, the mixture is rapidly filtered using a Buchner funnel and cooled for crystallization, thus completing the decolorization step.
[0003] Chinese Patent Publication No. CN115837173A discloses a device for acetic acid decolorization, which uses a stirring rod to fully stir the activated carbon and solution inside the decolorization tank. In actual use, dead zones are easily formed inside the tank, resulting in local accumulation or uneven dispersion of activated carbon. Moreover, the polymer impurities in crude acetylmethionine have large molecular weights, and the shear force of a single stirring rod is insufficient to break them down and disperse them, reducing the adsorption efficiency of activated carbon. Therefore, a decolorization device for the production of acetylmethionine is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a decolorization device for the production of acetylmethionine, which has the advantages of reducing stirring dead zones and improving adsorption efficiency. It solves the problems that in actual use, stirring dead zones are easily formed inside the tank, leading to local accumulation or uneven dispersion of activated carbon. Moreover, the polymer impurities in crude acetylmethionine have large molecular weights, and the shear force of a single stirring rod is insufficient to break them up and disperse them, thus reducing the adsorption efficiency of activated carbon.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a decolorizing device for the production of acetylmethionine, comprising a decolorizing device and a cover, wherein a stirring structure is provided on the cover;
[0006] The stirring structure includes a cylindrical chamber, a cover plate, an asynchronous motor, a connecting shaft, a frustum, three stirring frames, a rotation component, and a lifting structure. The cylindrical chamber is fixedly installed inside the cover, the cover plate is slidably installed on the cylindrical chamber, the asynchronous motor is fixedly installed on the top of the cylindrical chamber, one end of the connecting shaft passes through and extends into the coupling of the asynchronous motor output shaft, the frustum is fixedly installed at the end of the connecting shaft and located inside the cylindrical chamber, and the three stirring frames are rotatably connected to the frustum.
[0007] The lifting structure includes a guide member and an annular corrugated groove. The annular corrugated groove is formed on the inner peripheral wall of the cylindrical chamber. The guide member is fixedly installed on the top of the frustum and is slidably connected to the inner wall of the annular corrugated groove.
[0008] Furthermore, the self-rotating assembly includes a central gear and three peripheral gears. The central gear is fixedly connected to the cover plate and sleeved on the outer surface of the connecting shaft. The three peripheral gears are respectively fixedly installed at one end of the three stirring racks, and the central gear meshes with the three peripheral gears respectively.
[0009] Furthermore, the cover plate is an integral structure consisting of a circular plate and four protrusions, and the cylindrical chamber has four connecting grooves, with the protrusions slidably connected to the connecting grooves.
[0010] Furthermore, the connecting shaft is an integral structure consisting of a square shaft head and a shaft rod. The shaft rod passes through the frustum and is fixedly connected to the frustum. One end of the square shaft head is inserted into the coupling of the asynchronous motor output shaft.
[0011] Furthermore, each of the three stirring racks includes a stirring rod and three stirring blades. The stirring blades are fixedly installed on the outer surface of the stirring rod, and one end of the stirring rod passes through a frustum and is rotatably connected to it.
[0012] Furthermore, the guide is an integral structure formed by welding a connecting block and a connecting column. One end of the connecting column extends into the interior of the annular corrugated groove and is slidably connected to the annular corrugated groove. The distance between the highest and lowest points of the annular corrugated groove is equal to half the length of the square shaft head.
[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0014] This decolorizing device for the production of acetylmethionine features a stirring structure that utilizes a connecting shaft and a rotation component to control the simultaneous revolution and rotation of the stirring frame. This increases the stirring range, reduces dead zones in the solution, and ensures more uniform mixing of the decolorizing agent and materials, thereby improving the decolorization effect. The combination of the annular corrugated groove and guide components in the lifting component allows the truncated cone to move up and down, expanding the axial range of the stirring. This makes it particularly suitable for handling high-level solutions, enhancing the device's versatility. The overall combination of rotational and lifting motions creates a compound motion of the stirring frame, significantly improving the mixing effect during the decolorization process. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a perspective view of the stirring structure of this utility model;
[0017] Figure 3 This is a cross-sectional view of the cylindrical silo structure of this utility model;
[0018] Figure 4 This is an exploded view of the central gear and frustum of the structure of this utility model;
[0019] Figure 5 This is a schematic diagram showing the connection between the connecting shaft and the asynchronous motor in this utility model.
[0020] Figure 6 This is a schematic diagram showing the connection between the central gear and the cylindrical chamber in the structure of this utility model.
[0021] In the diagram: 1. Decolorizing device; 2. Cover; 3. Stirring structure; 31. Cylindrical silo; 32. Cover plate; 33. Asynchronous motor; 34. Connecting shaft; 35. Frustum; 36. Stirring frame; 37. Central gear; 38. Edge gear; 39. Guide component; 40. Annular corrugated groove. Detailed Implementation
[0022] 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.
[0023] Example 1: Please refer to Figure 1-6 The decolorization device for the production of acetylmethionine in this embodiment includes a decolorization device 1 and a cover 2, wherein a stirring structure 3 is provided on the cover 2.
[0024] Example 2: Please refer to Figure 1-6 Based on Embodiment 1, the stirring structure 3 includes a cylindrical chamber 31, a cover plate 32, an asynchronous motor 33, a connecting shaft 34, a frustum 35, three stirring racks 36, a rotation component, and a lifting structure. The cylindrical chamber 31 is fixedly installed inside the cover 2, the cover plate 32 is slidably installed on the cylindrical chamber 31, the asynchronous motor 33 is fixedly installed on the top of the cylindrical chamber 31, one end of the connecting shaft 34 passes through and extends into the coupling of the output shaft of the asynchronous motor 33, the frustum 35 is fixedly installed at the end of the connecting shaft 34 and located inside the cylindrical chamber 31, and the three stirring racks 36 are rotatably connected to the frustum 35 respectively.
[0025] The self-rotating component includes a central gear 37 and three peripheral gears 38. The central gear 37 is fixedly connected to the cover plate 32 and is sleeved on the outer surface of the connecting shaft 34. The three peripheral gears 38 are respectively fixedly installed at one end of the three stirring frames 36. The central gear 37 meshes with the three peripheral gears 38. The meshing transmission of the central gear 37 and the peripheral gears 38 realizes the self-rotation of the stirring frame 36, ensuring the stability of the self-rotation of the stirring frame 36. Moreover, the transmission process is smooth and the noise is low, making it suitable for long-term operation in industrial production environments.
[0026] In addition, each of the three stirring racks 36 includes a stirring rod and three stirring blades. The stirring blades are fixedly installed on the outer surface of the stirring rod. One end of the stirring rod passes through the frustum 35 and is rotatably connected to it. The nine stirring blades on the three stirring racks 36 further improve the mixing efficiency of the acetylmethionine solution and the decolorizing agent.
[0027] It should be noted that the connecting shaft 34 is an integral structure consisting of a square shaft head and a shaft rod. The shaft rod passes through the frustum 35 and is fixedly connected to the frustum 35. One end of the square shaft head is inserted into the coupling of the output shaft of the asynchronous motor 33. The connecting shaft 34 adopts an integral structure of a square shaft head and a shaft rod, which is firmly connected to the coupling and also allows for a certain amount of axial sliding, ensuring the smoothness of the lifting movement.
[0028] Using the above technical solution, after the asynchronous motor 33 starts, its output shaft begins to rotate, driving the connecting shaft 34 to rotate through the coupling. The connecting shaft 34 is fixedly connected to the frustum 35, so the frustum 35 will also rotate. The three stirring racks 36 are rotatably connected to the frustum 35, so they will make circular motions around the connecting shaft 34 as the frustum 35 rotates, thereby achieving the revolution stirring of the stirring racks 36. Since the central gear 37 and the edge gear 38 mesh with each other, and the edge gear 38 is fixed on the stirring rack 36, the central gear 37 drives the edge gear 38 to rotate through the meshing relationship, thereby enabling the stirring rack 36 to achieve rotation stirring. Under the combined action of revolution and rotation, the stirring blades of the stirring rack 36 will make complex spatial movements in the decolorization device 1, which can make the acetylmethionine solution and the decolorizing agent fully mixed, effectively improving the decolorization efficiency.
[0029] Example 3: Please refer to Figure 1-6 Based on Embodiment 2, the lifting structure includes a guide member 39 and an annular corrugated groove 40. The annular corrugated groove 40 is formed on the inner peripheral wall of the cylindrical chamber 31. The guide member 39 is fixedly installed on the top of the frustum 35 and is slidably connected to the inner wall of the annular corrugated groove 40.
[0030] Among them, the guide component 39 is an integral structure welded together by connecting block and connecting column. One end of the connecting column penetrates into the interior of the annular corrugated groove 40 and is slidably connected with the annular corrugated groove 40. The distance between the highest point and the lowest point of the annular corrugated groove 40 is equal to half the length of the square shaft head, thereby restricting the movement trajectory of the connecting column and controlling the lifting height of the truncated cone 35.
[0031] In addition, the cover plate 32 is an integral structure consisting of a circular plate and four protrusions. The cylindrical chamber 31 has four connecting grooves. The protrusions are slidably connected to the connecting grooves. The cover plate 32 is slidably connected to the connecting grooves of the cylindrical chamber 31 through the protrusions, which facilitates the up and down movement of the truncated cone 35 and drives the cover plate 32 and the central gear 37 to move.
[0032] Using the above technical solution, the guide member 39 at the top of the truncated cone 35 is slidably connected to the annular corrugated groove 40 on the inner peripheral wall of the cylindrical chamber 31. When the truncated cone 35 rotates, the guide member 39 will move along the trajectory of the annular corrugated groove 40. Because the annular corrugated groove 40 has ups and downs, the truncated cone 35 can also move up and down while rotating, thus forming a compound motion of rotation and lifting of the stirring rack 36.
[0033] The working principle of the above embodiments is as follows:
[0034] In the decolorization device used for the production of acetylmethionine, after the asynchronous motor 33 is started, its output shaft begins to rotate, which drives the connecting shaft 34 to rotate through the coupling. The connecting shaft 34 is fixedly connected to the frustum 35, so the frustum 35 will also rotate. The three stirring racks 36 are rotatably connected to the frustum 35, so they will make circular motion around the connecting shaft 34 as the frustum 35 rotates, thereby achieving the revolution stirring of the stirring racks 36.
[0035] The guide 39 at the top of the truncated cone 35 is slidably connected to the annular corrugated groove 40 on the inner peripheral wall of the cylindrical chamber 31. When the truncated cone 35 rotates, the guide 39 will move along the trajectory of the annular corrugated groove 40. Because the annular corrugated groove 40 has high and low undulations, the truncated cone 35 can also move up and down while rotating, thus forming a compound motion of rotation and lifting of the stirring rack 36.
[0036] The cover plate 32 is slidably connected to the cylindrical chamber 31 and is fixed together with the central gear 37. When the truncated cone 35 is raised or lowered, it will push the cover plate 32 to slide up and down in the cylindrical chamber 31, thereby driving the central gear 37 to move synchronously. Since the central gear 37 and the edge gear 38 mesh with each other, and the edge gear 38 is fixed on the stirring frame 36, the central gear 37 drives the edge gear 38 to rotate through the meshing relationship, thereby enabling the stirring frame 36 to rotate and stir. Under the combined action of revolution and rotation, the stirring blades of the stirring frame 36 will make complex spatial movements in the decolorization device 1, which can make the acetylmethionine solution and the decolorizing agent fully mixed, effectively improving the decolorization efficiency.
[0037] 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 a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] 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 decolorizing apparatus for the production of acetylmethionine, comprising a decolorizing device (1) and a cover (2), characterized in that: The cover (2) is provided with a stirring structure (3); The stirring structure (3) includes a cylindrical chamber (31), a cover plate (32), an asynchronous motor (33), a connecting shaft (34), a frustum (35), three stirring racks (36), a rotation component, and a lifting structure. The cylindrical chamber (31) is fixedly installed inside the cover (2). The cover plate (32) is slidably installed on the cylindrical chamber (31). The asynchronous motor (33) is fixedly installed on the top of the cylindrical chamber (31). One end of the connecting shaft (34) passes through and extends into the coupling of the output shaft of the asynchronous motor (33). The frustum (35) is fixedly installed at the end of the connecting shaft (34) and located inside the cylindrical chamber (31). The three stirring racks (36) are rotatably connected to the frustum (35). The lifting structure includes a guide (39) and an annular corrugated groove (40). The annular corrugated groove (40) is formed on the inner peripheral wall of the cylindrical chamber (31). The guide (39) is fixedly installed on the top of the frustum (35). The guide (39) is slidably connected to the inner wall of the annular corrugated groove (40).
2. The decolorizing apparatus for the production of acetylmethionine according to claim 1, characterized in that: The self-rotating assembly includes a central gear (37) and three peripheral gears (38). The central gear (37) is fixedly connected to the cover plate (32). The central gear (37) is sleeved on the outer surface of the connecting shaft (34). The three peripheral gears (38) are respectively fixedly installed on one end of the three stirring racks (36). The central gear (37) meshes with the three peripheral gears (38).
3. The decolorization apparatus for the production of acetylmethionine according to claim 1, characterized in that: The cover plate (32) is an integral structure consisting of a circular plate and four protrusions. The cylindrical hopper (31) has four connecting grooves, and the protrusions are slidably connected to the connecting grooves.
4. A decolorizing apparatus for the production of acetylmethionine according to claim 1, characterized in that: The connecting shaft (34) is an integral structure consisting of a square shaft head and a shaft rod. The shaft rod passes through the frustum (35) and is fixedly connected to the frustum (35). One end of the square shaft head is inserted into the coupling of the output shaft of the asynchronous motor (33).
5. A decolorizing apparatus for the production of acetylmethionine according to claim 1, characterized in that: Each of the three stirring racks (36) includes a stirring rod and three stirring blades. The stirring blades are fixedly installed on the outer surface of the stirring rod, and one end of the stirring rod passes through the frustum (35) and is rotatably connected to it.
6. A decolorizing apparatus for the production of acetylmethionine according to claim 4, characterized in that: The guide (39) is an integral structure formed by welding the connecting block and the connecting column. One end of the connecting column extends into the interior of the annular corrugated groove (40) and is slidably connected with the annular corrugated groove (40). The distance between the highest point and the lowest point of the annular corrugated groove (40) is equal to half the length of the square shaft head.