Medicine active carbon decoloring kettle

Abstract

The utility model provides a kind of medicine activated carbon decolorization kettle, including kettle body, the upper end of kettle body is equipped with driving motor, the power output shaft of driving motor is connected with the stirring shaft of extension into kettle body downward, the upper end of kettle body is connected with liquid feeding pipe, the lower end of kettle body is open, the open end of kettle body lower end is hinged with sealing cover, sealing cover is connected with drain pipe downward, drain pipe is provided with valve, the inner wall of kettle body is provided with activated carbon placement cylinder, the upper edge of activated carbon placement cylinder is connected with the inner wall of kettle body by sealing ring, the lower edge of activated carbon placement cylinder extends to sealing cover, the lower part of activated carbon placement cylinder is provided with multiple lower liquid guide holes that are circumferentially distributed, sealing ring is provided with several upper liquid guide holes that are circumferentially distributed, kettle body is provided with activated carbon feeding pipe outward, stirring shaft is provided with spiral stirring blade outward.The utility model uses newly designed decolorization kettle, so that activated carbon particles do not contact with stirrer, can effectively prevent the problem that activated carbon particles break and cause separation difficulty.

Description

Technical Field

[0001] This utility model belongs to the field of decolorization kettle technology and relates to a pharmaceutical activated carbon decolorization kettle. Background Technology During the manufacturing process of pharmaceuticals, the presence of raw materials, intermediates, or byproducts often imparts varying degrees of color to the pharmaceutical solution. These pigments not only affect the appearance of the pharmaceuticals but may also pose potential risks to their chemical stability and biological safety. Therefore, decolorization is one of the key steps in ensuring the purity and quality of pharmaceuticals.

[0002] Activated carbon, due to its well-developed pore structure and large specific surface area, possesses excellent adsorption properties and is widely used in the decolorization and purification process of pharmaceutical solutions. In practice, activated carbon is typically added to a decolorization vessel, mixed with the pharmaceutical solution to be treated, and decolorized under suitable temperature and pH conditions. To ensure sufficient contact between the activated carbon and the solution, and to guarantee that pigment molecules can effectively diffuse and be adsorbed onto the surface and microporous structure of the activated carbon, a stirring device is generally used to forcefully stir the material, thereby improving mass transfer efficiency and decolorization uniformity.

[0003] However, during the stirring process, frequent collisions and shearing inevitably occur between the stirring blades and the activated carbon particles, causing some activated carbon particles to break and produce a large amount of fine carbon powder or carbon residue. These broken activated carbon particles not only reduce the overall adsorption efficiency of the activated carbon, but also bring significant difficulties to subsequent solid-liquid separation after decolorization. Especially in the filtration process, fine carbon residue can easily clog the filter media, reduce the filtration speed, and even penetrate the filter layer into the filtrate, affecting the clarity and cleanliness of the drug, and increasing production costs and quality control difficulties. Utility Model Content

[0004] The purpose of this invention is to provide a pharmaceutical activated carbon decolorizing kettle. The newly designed decolorizing kettle prevents the activated carbon particles from coming into contact with the agitator, effectively preventing the problem of separation difficulties caused by the breakage of activated carbon particles.

[0005] To solve the above-mentioned technical problems, this utility model provides a pharmaceutical activated carbon decolorization kettle, including a kettle body. A drive motor is installed at the upper end of the kettle body. The power output shaft of the drive motor is connected downward to a stirring shaft extending into the kettle body. A liquid addition pipe is connected to the upper end of the kettle body. The lower end of the kettle body is open, and a sealing cover is hinged to the open end of the lower end of the kettle body. A drain pipe is connected downward to the sealing cover. A valve is installed on the drain pipe. An activated carbon placement cylinder is provided on the inner wall of the kettle body. The upper side of the activated carbon placement cylinder is connected to the inner wall of the kettle body through a sealing ring. The lower side of the activated carbon placement cylinder extends to the sealing cover. Multiple circumferentially distributed lower liquid guiding holes are opened in the lower part of the activated carbon placement cylinder. Several circumferentially distributed upper liquid guiding holes are opened in the sealing ring. An activated carbon feeding pipe is provided outward from the kettle body. The lower end of the activated carbon feeding pipe is located above the activated carbon placement cylinder. Spiral stirring blades are provided outside the stirring shaft.

[0006] By adopting the above technical solution, when decolorizing the drug solution, firstly, sufficient activated carbon particles are added to the vessel through the activated carbon feeding pipe, so that the activated carbon particles are located between the activated carbon placement cylinder and the inner wall of the vessel, and do not enter the middle of the vessel. Then, the drug solution to be decolorized is added to the vessel through the liquid addition pipe. After the drug solution is added, the drive motor is started. The drive motor drives the spiral stirring blades to rotate through the stirring shaft, causing the drug solution in the middle to move upward. Then, the drug solution located at the activated carbon particles circulates to the middle of the vessel through the lower liquid guide hole at the bottom, while the drug solution pushed upward by the spiral stirring blade diffuses outward and enters between the activated carbon particles through the upper liquid guide hole at the top, so that the drug solution can continuously circulate through the activated carbon particles, and the activated carbon particles continuously decolorize the drug solution. After decolorization is completed, the valve is opened directly to discharge the drug solution through the drain pipe. When it is necessary to discharge the used activated carbon particles, the sealing cover is opened. At this time, since there is an opening between the bottom of the activated carbon placement cylinder and the inner wall of the vessel, the activated carbon particles inside fall directly out.

[0007] The present invention is further configured such that the vessel body is covered with a constant temperature cover, and the constant temperature cover is connected to an inlet pipe and an outlet pipe.

[0008] The present invention is further provided that a temperature sensor for monitoring the internal temperature is provided at the upper end of the vessel body.

[0009] The present invention is further configured such that the lower end of the sealing cap is provided with a liquid outlet pipe communicating with its interior, the outer side of the liquid outlet pipe is provided with an external thread, one end of the drain pipe is provided with a threaded connecting pipe that is threadedly connected to the liquid outlet pipe, and a removable filter sleeve is provided inside the liquid outlet pipe.

[0010] The present invention is further configured such that a microporous filter sleeve is provided on the outer wall of the activated carbon placement cylinder at the lower liquid guide hole.

[0011] The present invention is further provided that the upper end of the activated carbon feeding tube is detachably connected with a sealing cap.

[0012] The present invention is further provided in that the lower side of the vessel body is provided with a connecting ring that connects to the sealing cover, the lower end of the connecting ring is provided with an annular sealing groove, and the upper end of the sealing cover is provided with a rubber sealing ring that cooperates with the annular sealing groove.

[0013] Compared with existing technologies, this utility model adopts a brand-new decolorization kettle structure design for the use of activated carbon granules. The activated carbon granules are isolated from the spiral stirring blades through the activated carbon placement cylinder, preventing the activated carbon granules from contacting the spiral stirring blades and effectively preventing the problem of separation difficulties caused by the breakage of activated carbon granules. At the same time, the spiral stirring blades can generate an upward thrust for the liquid when rotating, so that the liquid continuously circulates from bottom to top through the activated carbon granules for decolorization. After opening the sealing cover, the used activated carbon granules will fall directly downwards and be discharged, making the discharge more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial sectional view of the present invention; Figure 3 This is an exploded view used to show the connection between the sealing cap and the drain pipe; Figure 4 Used to show the opening at the bottom of the vessel.

[0015] The components are as follows: 1. Kettle body; 2. Drive motor; 3. Stirring shaft; 4. Liquid addition pipe; 5. Thermostatic cover; 6. Water inlet pipe; 7. Water outlet pipe; 8. Temperature sensor; 9. Sealing cap; 10. Connecting ring; 11. Annular sealing groove; 12. Rubber sealing ring; 13. Liquid outlet pipe; 14. Threaded connecting pipe; 15. Drain pipe; 16. Valve; 17. Filter sleeve; 18. Activated carbon placement cylinder; 19. Sealing ring; 20. Lower liquid guide hole; 21. Microporous filter sleeve; 22. Upper liquid guide hole; 23. Activated carbon feeding pipe; 24. Sealing cap; 25. Spiral blade. Detailed Implementation

[0016] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a further detailed explanation of the activated carbon decolorization kettle for pharmaceuticals proposed in this utility model. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, used only to facilitate and clarify the illustration of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0017] Example, refer to Figure 1-4 An activated carbon decolorization kettle for pharmaceuticals includes a kettle body 1. A drive motor 2 is installed at the upper end of the kettle body 1. The power output shaft of the drive motor 2 is connected downward to a stirring shaft 3 that extends into the kettle body 1. A liquid addition pipe 4 is connected to the upper end of the kettle body 1. A constant temperature cover 5 is fitted over the kettle body 1. The constant temperature cover 5 is connected to a water inlet pipe 6 and a water outlet pipe 7. Hot water or steam is introduced into the constant temperature cover 5 to raise the temperature inside the kettle body 1. A temperature sensor 8 for monitoring the internal temperature is installed at the upper end of the kettle body 1. The lower end of the kettle body 1 is open, and a sealing cover 9 is hinged to the open end of the lower end of the kettle body 1. A connecting ring 10 connected to the sealing cover 9 is provided on the lower edge of the kettle body 1. An annular sealing groove 11 is opened at the lower end of the connecting ring 10. A rubber sealing ring 12 that mates with the annular sealing groove 11 is provided at the upper end of the sealing cover 9.

[0018] The lower end of the sealing cap 9 is provided with a liquid outlet pipe 13 that communicates with its interior. The outer side of the liquid outlet pipe 13 is provided with external threads. The liquid outlet pipe 13 is covered with a threaded connecting pipe 14 that is threadedly connected to it. The threaded connecting pipe 14 is connected downward to a drain pipe 15 with a smaller inner diameter. A valve 16 is provided on the drain pipe 15. A removable filter sleeve 17 is provided inside the liquid outlet pipe 13. The addition of the filter sleeve 17 inside the liquid outlet pipe 13 is used to filter out activated carbon particles mixed in the pharmaceutical.

[0019] An activated carbon placement cylinder 18 is provided on the inner wall of the vessel body 1. The upper part of the activated carbon placement cylinder 18 is connected to the inner wall of the vessel body 1 by a sealing ring 19. The lower part of the activated carbon placement cylinder 18 extends to the sealing cap 9. An opening is formed between the lower part of the activated carbon placement cylinder 18 and the inner wall of the vessel body 1. Multiple circumferentially distributed lower liquid guiding holes 20 are provided in the lower part of the activated carbon placement cylinder 18. A microporous filter sleeve 21 is provided on the outer wall of the activated carbon placement cylinder 18 at the lower liquid guiding holes 20. The microporous filter sleeve 21 can further prevent... To prevent activated carbon particles from mixing into the drug solution, the sealing ring 19 has several circumferentially distributed upper liquid guiding holes 22. The vessel body 1 is provided with three activated carbon feeding pipes 23. The upper end of each activated carbon feeding pipe 23 is detachably connected to a sealing cap 24. The lower end of the activated carbon feeding pipe 23 is located above the activated carbon placement cylinder 18. A spiral stirring blade is provided outside the stirring shaft 3. When the spiral blade 25 rotates, it can generate an upward thrust for the liquid, so that the liquid continuously circulates from bottom to top through the activated carbon particles.

[0020] Working principle: When decolorizing a drug solution, firstly, sufficient activated carbon particles are added to the vessel 1 through the activated carbon feeding pipe 23, ensuring that the activated carbon particles are positioned between the activated carbon placement cylinder 18 and the inner wall of the vessel 1, preventing them from entering the middle of the vessel 1. Then, the drug solution to be decolorized is added to the vessel 1 through the liquid addition pipe 4. After the drug solution is added, the drive motor 2 is started. The drive motor 2 drives the spiral stirring blades to rotate via the stirring shaft 3, causing the drug solution in the middle to move upwards. Subsequently, the drug solution located at the activated carbon particles passes through the lower liquid guide hole 2 located at the bottom. The solution circulates to the middle of the vessel body 1, and the medicine solution pushed upward by the spiral stirring blades diffuses outward through the upper liquid guide hole 22 into the space between the activated carbon particles, allowing the medicine solution to continuously circulate through the activated carbon particles. The activated carbon particles continuously decolorize the medicine solution. After decolorization, the valve 16 is opened directly to discharge the medicine solution through the drain pipe 15. When it is necessary to discharge the used activated carbon particles, the sealing cover 9 is opened. At this time, since there is an opening between the lower side of the activated carbon placement cylinder 18 and the inner wall of the vessel body 1, the activated carbon particles inside fall directly out.

[0021] It should also be noted that all terms such as "set up" and similar descriptive words in this application (especially the specification) indicate that two structures have or exist a connection relationship. However, the specific means by which the two are connected are not limited in detail, and are usually conventional connection methods. That is, the means should be understood as prior art and do not need to be elaborated. For example, "m is set up with n" only indicates that structure m has structure n, and whether the two are connected by welding, riveting, adhesive, or integral molding is within the scope of protection of this application. Similarly, "x is rotatably set up with y" only indicates that y and x can rotate relative to each other, and whether the two are connected by a bearing, or whether y directly passes through x and is rotatably connected to x, or other feasible methods, are all within the scope of protection of this application.

[0022] The above description is only a description of the preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A pharmaceutical activated carbon decolorization kettle, comprising a kettle body (1), wherein a drive motor (2) is installed at the upper end of the kettle body (1), and a stirring shaft (3) extending into the kettle body (1) is connected downward to the power output shaft of the drive motor (2), and a liquid addition pipe (4) is connected to the upper end of the kettle body (1), characterized in that, The lower end of the vessel body (1) is open, and a sealing cap (9) is hinged to the lower end of the vessel body (1). The sealing cap (9) is connected downward to a drain pipe (15). A valve (16) is provided on the drain pipe (15). An activated carbon placement cylinder (18) is provided on the inner wall of the vessel body (1). The upper side of the activated carbon placement cylinder (18) is connected to the inner wall of the vessel body (1) through a sealing ring (19). The lower side of the activated carbon placement cylinder (18) extends to the sealing cap (9). Multiple circumferentially distributed lower liquid guide holes (20) are opened in the lower part of the activated carbon placement cylinder (18). Several circumferentially distributed upper liquid guide holes (22) are opened on the sealing ring (19). An activated carbon feeding pipe (23) is provided outward from the vessel body (1). The lower end of the activated carbon feeding pipe (23) is located above the activated carbon placement cylinder (18). Spiral stirring blades are provided outside the stirring shaft (3).

2. The activated carbon decolorizing kettle for pharmaceuticals according to claim 1, characterized in that, The vessel body (1) is covered with a constant temperature cover (5), and the constant temperature cover (5) is connected to a water inlet pipe (6) and a water outlet pipe (7).

3. The activated carbon decolorizing kettle for pharmaceuticals according to claim 2, characterized in that, The upper end of the vessel body (1) is provided with a temperature sensor (8) for monitoring its internal temperature.

4. The activated carbon decolorizing kettle for pharmaceuticals according to claim 1, characterized in that, The lower end of the sealing cap (9) is provided with a liquid outlet pipe (13) communicating with its interior. The outer side of the liquid outlet pipe (13) is provided with an external thread. One end of the drain pipe (15) is provided with a threaded connecting pipe (14) that is threadedly connected to the liquid outlet pipe (13). A removable filter sleeve (17) is provided inside the liquid outlet pipe (13).

5. The activated carbon decolorizing kettle for pharmaceuticals according to claim 1, characterized in that, The activated carbon placement cylinder (18) has a microporous filter sleeve (21) on its outer wall at the lower liquid guide hole (20).

6. The activated carbon decolorizing kettle for pharmaceuticals according to claim 1, characterized in that, The upper end of the activated carbon feeding pipe (23) is detachably connected to a sealing cap (24).

7. The activated carbon decolorizing kettle for pharmaceuticals according to claim 1, characterized in that, The lower side of the vessel body (1) is provided with a connecting ring (10) that connects to the sealing cover (9). The lower end of the connecting ring (10) is provided with an annular sealing groove (11). The upper end of the sealing cover (9) is provided with a rubber sealing ring (12) that cooperates with the annular sealing groove (11).

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