Reaction kettle for pharmaceutical production

Abstract

The utility model relates to the technical field of reaction kettles, and discloses a reaction kettle for pharmaceutical production, which comprises a kettle body, the upper surface of the kettle body is fixedly connected with a motor, the bottom output end of the motor penetrates through the kettle body, the bottom output end of the motor is fixedly connected with a rotating rod, and the outer side of the rotating rod is fixedly connected with a stirring rod. A material blocking ring is fixedly connected to the interior of the kettle body, a scraping plate is arranged in the material blocking ring, a groove is formed in the surface of the side, close to the material blocking ring, of the scraping plate, and a connecting rod is fixedly connected to the surface of the side, close to the center of the interior of the kettle body, of the scraping plate. According to the utility model, through the cooperation of the material blocking ring, the scraping plate, the groove, the connecting rod, the gear ring, the rotating gear and the transmission unit, raw materials which are gradually raised under the action of centrifugal force can be blocked, so that the situation that the raw materials are adhered to a higher position on the inner wall of the kettle body and are difficult to fall down quickly is avoided; and raw materials adhered to the surface of the material blocking ring can be quickly scraped off while stirring is carried out.

Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, and in particular to a reaction vessel for pharmaceutical production. Background Technology

[0002] The working principle of a reaction vessel is to use a motor to drive a stirring shaft to stir the reactants and make them react fully to obtain the desired substances. In the process of pharmaceutical production, the intermediates or products of active pharmaceutical ingredients are prepared by adding a certain proportion of the reactants into the reaction vessel and reacting them in the reaction vessel under the action of temperature, time and catalyst.

[0003] A search revealed Chinese Patent Publication No. CN220803203U, which discloses a reaction vessel for pharmaceutical production. The vessel includes a stirring rod and a support rod. When a motor is turned on, a first gear and a second gear drive a rotating rod to rotate. The rotating rod drives the stirring rod and the support rod to stir the internal raw materials, ensuring thorough mixing. By using multiple stirring rods, the stirring effect is improved by stirring raw materials at different depths. The support rods also increase the stirring range of the rotating rod and the stirring rod.

[0004] In actual use, when raw materials are added to the reactor and stirred, the raw materials near the inner wall of the reactor will gradually rise under the action of centrifugal force. Some more viscous raw materials will adhere to the inner wall of the reactor after being lifted, and then slowly fall down, resulting in reduced stirring efficiency and affecting the processing efficiency of pharmaceutical raw materials. Therefore, a pharmaceutical production reactor is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a reaction vessel for pharmaceutical production, which aims to improve the problem in the prior art where, when stirring raw materials inside the vessel, the raw materials adhere to a higher position inside the vessel under the action of centrifugal force, thus affecting the stirring efficiency.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a reaction vessel for pharmaceutical production, comprising a vessel body, a motor fixedly connected to the upper surface of the vessel body, the bottom output end of the motor penetrating through the vessel body, a rotating rod fixedly connected to the bottom output end of the motor, a stirring rod fixedly connected to the outer side of the rotating rod, a baffle ring fixedly connected inside the vessel body, a scraper provided inside the baffle ring, a groove formed on the surface of the scraper near the baffle ring, a connecting rod fixedly connected to the surface of the scraper near the center of the vessel body, a toothed ring fixedly connected to the end of the connecting rod away from the scraper, a rotating gear fixedly connected to the outer surface of the rotating rod, and a transmission unit provided on the outer side of the rotating gear, the transmission unit being used to drive the toothed ring to rotate when the rotating gear rotates.

[0007] As a further description of the above technical solution:

[0008] The size of the groove is adapted to the size of the baffle ring, and the inner wall of the groove fits into the outer wall of the baffle ring.

[0009] As a further description of the above technical solution:

[0010] The transmission unit includes a bearing, which is disposed above a gear ring. A connecting ring plate is fixedly connected to the bottom surface of the outer ring of the bearing, and a rotating shaft is fixedly connected to the bottom surface of the inner ring of the bearing. A transmission gear is rotatably connected to the bottom end of the rotating shaft, and a fixing rod is fixedly connected to the upper surface of the inner ring of the bearing.

[0011] As a further description of the above technical solution:

[0012] The bottom surface of the connecting ring plate is fixedly connected to the upper surface of the toothed ring, and the upper end of the fixing rod is fixedly connected to the inner top surface of the vessel body.

[0013] As a further description of the above technical solution:

[0014] The tooth surfaces of the transmission gear mesh with the inner tooth surfaces of the gear ring and the tooth surfaces of the rotating gear, respectively.

[0015] As a further description of the above technical solution:

[0016] A circular baffle is fixedly connected to the outer side of the rotating rod, and a baffle cover is fixedly connected to the outer surface of the fixed rod.

[0017] As a further description of the above technical solution:

[0018] The diameter of the baffle is larger than that of the circular baffle, and the baffle is located above the bearing.

[0019] As a further description of the above technical solution:

[0020] The circular baffle is located directly below the rotating gear.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the combination of the baffle ring, scraper, groove, connecting rod, toothed ring, rotating gear and transmission unit can block the raw material that is gradually rising under the action of centrifugal force, so as to prevent the raw material from adhering to a high position on the inner wall of the reactor and making it difficult to fall quickly. At the same time as stirring, the raw material adhering to the surface of the baffle ring can be quickly scraped off, so that the raw material can fall back to the bottom to continue the reaction, thereby improving the reaction rate and effect of the raw material.

[0023] 2. In this utility model, the combination of the circular baffle and the baffle cover can protect the upper and lower sides of the gear ring, rotating gear and transmission unit, preventing raw materials from entering and causing obstruction of transmission, affecting the scraping of the baffle ring surface and the service life of the device. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a pharmaceutical production reactor proposed in this utility model;

[0025] Figure 2 This is a schematic cross-sectional view of the front part of a pharmaceutical production reactor proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of a scraper, connecting rod, toothed ring, circular baffle, and baffle cover for a pharmaceutical production reactor proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of the connecting rod, toothed ring, and bearing of a pharmaceutical production reactor proposed in this utility model;

[0028] Figure 5 This is a schematic diagram of a scraper, connecting rod, gear ring, rotating gear, connecting ring plate, rotating shaft and transmission gear of a reaction vessel for pharmaceutical production according to the present invention.

[0029] Legend:

[0030] 1. Kettle body; 2. Motor; 3. Rotating rod; 4. Stirring rod; 5. Material retaining ring; 6. Scraper; 7. Groove; 8. Connecting rod; 9. Gear ring; 10. Rotating gear; 101. Bearing; 102. Connecting ring plate; 103. Rotating shaft; 104. Transmission gear; 105. Fixing rod; 11. Circular baffle; 12. Material retaining cover. Detailed Implementation

[0031] 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.

[0032] Reference Figures 1-2This utility model provides an embodiment of a pharmaceutical production reaction vessel, including a vessel body 1. A feed hopper is fixedly connected to the upper surface of the vessel body 1, and a discharge pipe is fixedly connected to the bottom surface of the vessel body 1. An electromagnetic valve is fixedly connected to the outside of the discharge pipe, which can control the opening and closing of the discharge pipe. Raw materials can be added into the interior of the vessel body 1 through the feed hopper. After the stirring reaction is completed, the electromagnetic valve can be opened to allow the raw materials to be discharged through the discharge pipe. A motor 2 is fixedly connected to the upper surface of the vessel body 1. The bottom output end of the motor 2 passes through the vessel body 1. A rotating rod 3 is fixedly connected to the bottom output end of the motor 2. A stirring rod 4 is fixedly connected to the outside of the rotating rod 3. When the motor 2 is started, the rotating rod 3 can drive the stirring rod 4 to rotate.

[0033] A baffle ring 5 is fixedly connected inside the vessel body 1. The baffle ring 5 is located above the liquid surface of the raw material put into the vessel body 1. When the raw material enters the vessel body 1 for stirring, the raw material on the outside will gradually rise under the action of centrifugal force. At this time, the baffle ring 5 will block and limit the rising raw material to prevent the raw material from adhering to a higher position on the inner wall of the vessel body 1, so that the raw material can fall back quickly and improve the stirring reaction efficiency.

[0034] Reference Figures 3-5 The baffle ring 5 is equipped with a scraper 6 inside. The scraper 6 has a groove 7 on the side surface near the baffle ring 5. The size of the groove 7 is adapted to the size of the baffle ring 5. The inner wall of the groove 7 fits against the outer wall of the baffle ring 5. When the scraper 6 rotates around the baffle ring 5, it can scrape off the outer wall surface of the baffle ring 5, so that the raw material adhering to the outside of the baffle ring 5 can quickly fall back into the reactor body 1. A connecting rod 8 is fixedly connected to the side surface of the scraper 6 near the center of the reactor body 1. When the connecting rod 8 moves, it can drive the scraper 6 to move synchronously. A toothed ring 9 is fixedly connected to the end of the connecting rod 8 away from the scraper 6. When the toothed ring 9 rotates, it can drive the scraper 6 to rotate synchronously through the connecting rod 8. A rotating gear 10 is fixedly connected to the outer surface of the rotating rod 3. When the rotating rod 3 rotates, it can drive the rotating gear 10 to rotate synchronously.

[0035] A transmission unit is provided on the outer side of the rotating gear 10. The transmission unit includes a bearing 101, which is positioned above the gear ring 9. A connecting ring plate 102 is fixedly connected to the bottom surface of the outer ring of the bearing 101. The bottom surface of the connecting ring plate 102 is fixedly connected to the upper surface of the gear ring 9. When the gear ring 9 rotates, it can drive the outer ring of the bearing 101 to rotate synchronously through the connecting ring plate 102. A rotating shaft 103 is fixedly connected to the bottom surface of the inner ring of the bearing 101. A transmission gear 104 is rotatably connected to the bottom end of the rotating shaft 103. The transmission gear 104 is connected to the bearing 101 through the rotating shaft 103. The inner ring of bearing 101 is rotatably connected. The tooth surface of transmission gear 104 meshes with the inner tooth surface of gear ring 9 and the tooth surface of rotating gear 10. When rotating gear 10 rotates, it can drive transmission gear 104 to rotate synchronously. At the same time, transmission gear 104 will drive rotating gear 10 to rotate. A fixing rod 105 is fixedly connected to the upper surface of the inner ring of bearing 101. The upper end of fixing rod 105 is fixedly connected to the inner top surface of vessel body 1. The inner ring of bearing 101 is fixedly connected to vessel body 1 through fixing rod 105, which can stably limit the position of gear ring 9 and transmission gear 104.

[0036] The fixed rod 105 and the bearing 101 work together to stably position the gear ring 9 and the transmission gear 104. When the motor 2 starts and drives the rotating rod 3 to rotate, it will drive the rotating gear 10 to rotate synchronously. At this time, the rotating gear 10 will drive the gear ring 9 to rotate synchronously through the transmission gear 104, and then drive the scraper 6 to rotate through the connecting rod 8, so as to quickly scrape off the raw material adhering to the outer wall surface of the retaining ring 5. The tooth ratio between the transmission gear 104 and the gear ring 9 can be set according to actual needs to avoid the scraper 6 rotating too fast and extend the service life of the scraper 6.

[0037] Reference Figure 3 A circular baffle 11 is fixedly connected to the outer side of the rotating rod 3. The circular baffle 11 is located directly below the rotating gear 10. The circular baffle 11 can shield the bottom of the transmission unit, the gear ring 9 and the rotating gear 10 to prevent raw materials from splashing into them and affecting the use of the device. A baffle 12 is fixedly connected to the outer surface of the fixed rod 105. The diameter of the baffle 12 is larger than that of the circular baffle 11. The baffle 12 is located above the bearing 101. The baffle 12 can shield and guide the input raw materials to prevent them from falling into the transmission unit, the gear ring 9 and the rotating gear 10 and affecting their use.

[0038] Working principle: Raw materials are fed into the vessel 1 through the feed hopper on the upper surface of the vessel 1. Then, the motor 2 is started, which drives the stirring rod 4 to rotate via the rotating rod 3, stirring and mixing the raw materials to improve reaction efficiency. During the stirring process, under the action of centrifugal force, the raw materials near the inner wall of the vessel 1 will gradually rise. When they reach the baffle ring 5, they will be blocked by the baffle ring 5 to prevent the raw materials from adhering to a high position on the inner wall of the vessel 1, allowing the raw materials to fall back quickly. When the rotating rod 3 rotates, it will drive the rotating gear 10 to rotate synchronously. At the same time, the rotating gear 10 will drive the gear ring 9 to rotate synchronously through the transmission gear 104, which in turn drives the scraper 6 to rotate around the baffle ring 5 through the connecting rod 8, quickly scraping off the raw materials adhering to the surface of the baffle ring 5, allowing the raw materials to fall back to the bottom to continue stirring and mixing, further improving the reaction efficiency and effect of the raw materials.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A reaction vessel for pharmaceutical production, comprising a vessel body (1), characterized in that: The upper surface of the kettle body (1) is fixedly connected with a motor (2), the bottom output end of the motor (2) penetrates the kettle body (1), the bottom output end of the motor (2) is fixedly connected with a rotating rod (3), the outer side of the rotating rod (3) is fixedly connected with a stirring rod (4), the inside of the kettle body (1) is fixedly connected with a material blocking ring (5), the inside of the material blocking ring (5) is provided with a scraper (6), the side surface of the scraper (6) close to the material blocking ring (5) is provided with a groove (7), the side surface of the scraper (6) close to the inside center of the kettle body (1) is fixedly connected with a connecting rod (8), one end of the connecting rod (8) away from the scraper (6) is fixedly connected with a gear ring (9), the outer side surface of the rotating rod (3) is fixedly connected with a rotating gear (10), the outer side of the rotating gear (10) is provided with a transmission unit, and the transmission unit is used to drive the gear ring (9) to rotate when the rotating gear (10) rotates.

2. The reaction vessel for pharmaceutical production according to claim 1, characterized in that: The size of the groove (7) is matched with the size of the material blocking ring (5), and the inner wall of the groove (7) is matched with the outer wall of the material blocking ring (5).

3. The reaction vessel for pharmaceutical production according to claim 1, characterized in that: The transmission unit comprises a bearing (101), the bearing (101) is arranged above the gear ring (9), the outer ring bottom surface of the bearing (101) is fixedly connected with a connecting ring plate (102), the inner ring bottom surface of the bearing (101) is fixedly connected with a rotating shaft (103), the bottom end of the rotating shaft (103) is rotatably connected with a transmission gear (104), and the inner ring upper surface of the bearing (101) is fixedly connected with a fixed rod (105).

4. The reaction vessel for pharmaceutical production according to claim 3, characterized in that: The bottom surface of the connecting ring plate (102) is fixedly connected with the upper surface of the gear ring (9), and the upper end of the fixed rod (105) is fixedly connected with the inside top surface of the kettle body (1).

5. The reaction vessel for pharmaceutical production according to claim 3, characterized in that: The tooth surface of the transmission gear (104) is respectively meshed with the inner tooth surface of the gear ring (9) and the tooth surface of the rotating gear (10).

6. The reaction vessel for pharmaceutical production according to claim 3, characterized in that: The outer side of the rotating rod (3) is fixedly connected with a circular baffle (11), and the outer side surface of the fixed rod (105) is fixedly connected with a material blocking cover (12).

7. The reaction vessel for pharmaceutical production according to claim 6, characterized in that: The diameter of the material blocking cover (12) is greater than that of the circular baffle (11), and the material blocking cover (12) is located above the bearing (101).

8. The reaction vessel for pharmaceutical production according to claim 6, characterized in that: The circular baffle (11) is located directly below the rotating gear (10).

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