A raw material medicine reaction kettle exhaust gas recovery device

Abstract

The utility model relates to waste gas recovery technical field especially relates to a raw medicinal material reaction kettle waste gas recovery unit, include: separation pipe, waste gas recovery pipe, the separation pipe is equipped with screen cloth one side close to waste gas recovery pipe, the separation pipe is equipped with branch pipe one side bottom end away from screen cloth away from waste gas recovery pipe, the separation pipe still includes: telescopic link, the telescopic link one side is equipped with screw thread, and the other side is opened and has the storage cavity, the telescopic link is equipped with the handle bar one end away from storage cavity, the screw groove is opened on the inner wall of branch pipe one side away from screen cloth, and the screw groove of branch pipe is matched with the screw thread of telescopic link. Some raw medicinal material reaction can produce solid impurity, and some small amount of solid impurity can move along with waste gas, lead to its mix in subsequent treatment process, or is not in time processing makes these impurities influence personnel safety. Compared with the prior art, the utility model is equipped with screen cloth, branch pipe, telescopic link in waste gas recovery process, makes the solid impurity in waste gas can be effectively recovered, prevents these impurities to cause influence to subsequent process or personnel.

Description

Technical Field

[0001] This utility model relates to the field of waste gas recovery technology, and in particular to a waste gas recovery device for a pharmaceutical raw material reaction vessel. Background Technology

[0002] In the chemical and pharmaceutical industry, the reaction process of active pharmaceutical ingredients (APIs) is a crucial step. With the continuous development of pharmaceutical technology, the requirements for the quality and production efficiency of APIs are also increasing. API reactions generate a large amount of waste gas, which not only contains substances that could be reused but also potentially pollutes the environment. Therefore, how to efficiently recover and treat waste gas from API reaction vessels has become an urgent problem to be solved in the industry. Effective waste gas recovery can not only achieve resource reuse and reduce production costs but also reduce adverse environmental impacts, aligning with the concept of sustainable development. This is of great significance for improving the economic and environmental benefits of the entire chemical and pharmaceutical industry.

[0003] Currently, in the recovery of waste gas from pharmaceutical reaction vessels, the main approach is to absorb and treat the waste gas within the waste gas recovery pipe. Some processes also involve condensing the waste gas through the waste gas recovery pipe first, turning some of the higher-boiling-point substances into liquids, thus separating the different components for further processing.

[0004] However, during the reaction of some raw materials, such as high-melting-point drugs, solid impurities such as crystalline particles are generated. Some small amounts of solid impurities will move with the exhaust gas. Traditional exhaust gas recovery devices usually do not treat these solid impurities, causing them to be mixed into the subsequent treatment process, making the exhaust gas recovery process more troublesome. Some mixed waste materials may also be toxic. If not treated in time, these impurities may leak out and affect the safety of workers. Utility Model Content

[0005] In view of the technical problems of the prior art, this utility model provides a raw material reaction vessel waste gas recovery device.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A device for recovering waste gas from a pharmaceutical raw material reaction vessel includes: a separation pipe and a waste gas recovery pipe; the separation pipe is connected to the waste gas recovery pipe; a screen is provided on the side of the separation pipe near the waste gas recovery pipe; a branch pipe is provided at the bottom end of the separation pipe on the side away from the screen; the separation pipe further includes: a telescopic rod; one side of the telescopic rod is threaded, and the other side has a storage cavity; the telescopic rod extends into the branch pipe along the side with the storage cavity; a handle is provided at the end of the telescopic rod away from the storage cavity; a threaded groove is provided on the inner wall of the branch pipe on the side away from the screen; the threaded groove of the branch pipe matches the thread of the telescopic rod.

[0008] Furthermore, a closed cavity is opened on the side of the telescopic rod away from the storage cavity; the closed cavity is connected to the storage cavity; a screw is provided on the gripping side; the screw extends into the closed cavity; a screw groove is opened on the inner wall of the closed cavity; the screw groove of the closed cavity matches the screw.

[0009] Furthermore, a sealing rod is provided on the inner wall of the separation tube; a sealing plate is provided at one end of the sealing rod; the sealing rod is located on the side of the branch tube away from the gripping rod; the end of the sealing rod with the sealing plate extends into the storage cavity.

[0010] Furthermore, the storage cavity includes: a narrow opening and a wide opening; the diameter of the narrow opening is smaller than the diameter of the wide opening; the wide opening is located on the side of the narrow opening near the grip; the diameter of the narrow opening is larger than the diameter of the sealing plate.

[0011] Furthermore, the sealing plate is set inside the coarse opening; the side of the sealing plate near the narrow opening is tapered.

[0012] Furthermore, the storage cavity also includes: a sealing block; the sealing block is located on the side of the narrow opening near the wide opening; a through hole is opened in the middle of the sealing block; the diameter of the sealing plate is larger than the diameter of the through hole.

[0013] Furthermore, a limiting groove is opened at the bottom of the narrow opening; the closed block can be rotatably extended into the limiting groove.

[0014] The beneficial effects of this utility model are: the presence of a screen, branch pipe, and telescopic rod in the waste gas recovery process enables the effective interception and recovery of some solid impurities in the waste gas, thereby preventing these impurities from affecting subsequent processes or personnel. Attached Figure Description

[0015] Figure 1 : A schematic diagram of the structure of this utility model.

[0016] Figure 2 Partial structural cross-sectional view of this utility model;

[0017] Figure 3 : Partial structural cross-sectional view of the telescopic rod and the closing rod.

[0018] In the diagram: 1. Separation pipe; 11. Screen; 12. Branch pipe; 13. Telescopic rod; 131. Storage chamber; 1311. Narrow opening; 1312. Wide opening; 1313. Sealing block; 132. Holding rod; 1321. Screw; 133. Closed chamber; 14. Sealing rod; 141. Sealing plate; 1411. Limiting groove; 2. Waste gas recovery pipe. Detailed Implementation

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] according to Figure 1-3This utility model provides a raw material pharmaceutical reaction vessel waste gas recovery device, including: separation pipe 1 and waste gas recovery pipe 2.

[0021] The separation pipe 1 is connected to the waste gas recovery pipe 2; a screen 11 is provided on the side of the separation pipe 1 near the waste gas recovery pipe 2; a branch pipe 12 is provided at the bottom end of the separation pipe 1 on the side away from the waste gas recovery pipe 2; the separation pipe 1 also includes: a telescopic rod 13; the telescopic rod 13 has a thread on one side and a storage cavity 131 on the other side; the telescopic rod 13 extends into the branch pipe 12 along the side with the storage cavity 131; a handle 132 is provided at the end of the telescopic rod 13 away from the storage cavity 131; a threaded groove is provided on the inner wall of the branch pipe 12 on the side away from the screen 11; the threaded groove of the branch pipe 12 matches the thread of the telescopic rod 13.

[0022] When it is necessary to recover some solid impurities from the waste gas, the waste gas can be connected to the separation pipe 1, allowing the waste gas to enter the separation pipe 1. After entering the separation pipe 1, the waste gas will move towards the waste gas recovery pipe 2, causing the waste gas to come into contact with the screen 11. Some solid impurities will be blocked by the screen 11, while the gas can pass through the screen 11. A branch pipe 12 is provided on one side of the screen 11, so that the solid impurities will fall after hitting the screen 11 and enter the branch pipe 12. A telescopic rod 13 is provided in the branch pipe 12, extending into the branch pipe 12 along the side with the storage cavity 131, so that the solid impurities will fall into the storage cavity 131. That is, this utility model has a screen 11, a branch pipe 12, and a telescopic rod 13 in the waste gas recovery process, so that some solid impurities in the waste gas can be effectively intercepted and recovered, preventing these impurities from affecting subsequent processes or personnel. The telescopic rod 13 has a thread on the side away from the storage cavity 131, and the branch pipe 12 has a corresponding threaded groove, so that the telescopic rod 13 can be screwed into the threaded groove of the branch pipe 12 for fixation. Correspondingly, when a certain amount of solid impurities accumulate in the storage cavity 131, the telescopic rod 13 can also be rotated to allow the impurities to be discharged in time, making it more convenient to handle impurities.

[0023] A closed cavity 133 is formed on the side of the telescopic rod 13 away from the storage cavity 131; the closed cavity 133 is connected to the storage cavity 131; a screw 1321 is provided on one side of the grip rod 132; the screw 1321 extends into the closed cavity 133; a threaded groove is formed on the inner wall of the closed cavity 133; the threaded groove of the closed cavity 133 matches the screw 1321. A sealing rod 14 is provided on the inner wall of the separation tube 1; a sealing plate 141 is provided at one end of the sealing rod 14; the sealing rod 14 is located on the side of the branch tube 12 away from the grip rod 132; the end of the sealing rod 14 with the sealing plate 141 extends into the storage cavity 131. The storage cavity 131 includes: a narrow opening 1311 and a wide opening 1312; the diameter of the narrow opening 1311 is smaller than the diameter of the wide opening 1312; the wide opening 1312 is located on the side of the narrow opening 1311 closer to the grip rod 132; the diameter of the narrow opening 1311 is larger than the diameter of the sealing plate 141. A sealing plate 141 is disposed within the wider opening 1312; the sealing plate 141 is tapered on the side near the narrower opening 1311. The storage cavity 131 also includes a sealing block 1313; the sealing block 1313 is disposed on the side of the narrower opening 1311 near the wider opening 1312; a through hole is formed in the middle of the sealing block 1313; the diameter of the sealing plate 141 is larger than the diameter of the through hole. A limiting groove 1411 is formed at the bottom end of the narrower opening 1311; the sealing block 1313 can rotatably extend into the limiting groove 1411.

[0024] When it is necessary to remove solid impurities, directly opening the branch pipe 12 will cause exhaust gas to leak out, so the machine needs to be stopped before removal, which is quite inconvenient. In this invention, a closed cavity 133 communicating with the storage cavity 131 is opened on the side of the telescopic rod 13 away from the storage cavity 131. The grip rod 132 has a screw 1321 on one side that can be screwed into the screw groove of the closed cavity 133. That is, the material falling into the storage cavity 131 will enter the closed cavity 133 and be blocked by the screw 1321. At this time, the solid impurities can be discharged by rotating the screw 1321 by the grip rod 132. This invention features a sealing rod 14, with a sealing plate 141 at one end extending into the coarse opening 1312. When impurities need to be removed, the gripping rod 132 can be rotated, causing the telescopic rod 13 to move outward from the branch pipe 12. During this movement, the narrow opening 1311 moves closer to the sealing plate 141, causing the sealing block 1313 to move closer to the sealing plate 141, ensuring that the sealing block 1313 and the sealing plate 141 are tightly fitted, making it difficult for subsequent impurities to enter the coarse opening 1312. At this point, the gripping rod 132 is rotated again, causing the screw 1321 to rotate out of the closed cavity 133, allowing the material to enter the closed cavity 133 and exit from it. In other words, the branch pipe 12 is sealed first, and then the material is discharged. The discharge mechanism allows collected impurities to be discharged even during operation, ensuring the waste gas recovery process can operate normally without shutdown and guaranteeing efficient waste gas recovery. Furthermore, when the lever 132 is rotated in a certain direction, the screw 1321 is tightened within the closed cavity 133. With the screw 1321 already tightened, further rotation of the lever 132 in that direction causes the telescopic rod 13 to rotate out of the branch pipe 12. In other words, by rotating the lever 132 in different directions, the telescopic rod 13 and the screw 1321 move sequentially, facilitating material discharge and preventing accidental loosening of the screw 1321 when the telescopic rod 13 needs to be loosened, thus avoiding waste gas leakage. The upper end of the sealing plate 141 is conical, allowing solid impurities falling into the branch pipe 12 to slide off along the sealing plate 141, preventing impurities from accumulating on it. A closing block 1313 is provided on the side of the narrow opening 1311 near the wide opening 1312. The closing block 1313 fits against the closing plate 141 to close the branch pipe 12. When the closing block 1313 needs to be tightly fitted to the closing plate 141, the telescopic rod 13 needs to be rotated to achieve this, so that the closing block 1313 fits against the closing plate 141. However, if it is not tightly fitted, the closing block 1313 still needs to be tightly fitted by rotating with the telescopic rod 13. At this time, there is a certain friction between the closing plate 141 and the closing block 1313, which makes the process of rotating the telescopic rod 13 more strenuous and easily causes friction damage to the closing block 1313. This utility model rotatably sets the closing block 1313 in the limiting groove 1411, so that when the telescopic rod 13 rotates, the closing block 1313 can move along the axial direction of the telescopic rod 13 without rotating, thereby reducing the resistance received by the closing block 1313, making the rotation process more convenient and extending the service life of the closing block 1313.

[0025] In summary, this utility model incorporates a screen, branch pipe, and telescopic rod in the waste gas recovery process, enabling the effective interception and recovery of solid impurities in the waste gas, thereby preventing these impurities from affecting subsequent processes or personnel.

[0026] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A device for recovering waste gas from a pharmaceutical raw material reaction vessel, characterized in that: include: Separation pipe and waste gas recovery pipe; the separation pipe is connected to the waste gas recovery pipe; The separation pipe is equipped with a screen on the side near the waste gas recovery pipe; The separation pipe is provided with a branch pipe at the bottom end of the screen on the side away from the waste gas recovery pipe; The separation tube also includes: a telescopic rod; The telescopic rod has a thread on one side and a storage cavity on the other side; The telescopic rod extends into the branch pipe along the side where the storage cavity is located; The telescopic rod is provided with a handle at the end away from the storage cavity; The inner wall of the branch pipe on the side away from the screen has a screw groove. The threaded groove of the branch pipe matches the thread of the telescopic rod.

2. The raw material reaction vessel waste gas recovery device as described in claim 1, characterized in that: The telescopic rod has a closed cavity on the side away from the storage cavity; The closed cavity is connected to the storage cavity; A screw is provided on one side of the grip; The screw extends into the closed cavity; The inner wall of the closed cavity has threaded grooves; The screw groove of the closed cavity matches the screw.

3. The raw material reaction vessel waste gas recovery device as described in claim 2, characterized in that: A sealing rod is provided on the inner wall of the separation tube; One end of the sealing rod is provided with a sealing plate; The sealing rod is located on the side of the branch pipe away from the grip rod; The sealing rod has a sealing plate at one end that extends into the storage cavity.

4. The raw material reaction vessel waste gas recovery device as described in claim 3, characterized in that: The storage cavity includes: a narrow opening and a wide opening; The diameter of the narrow opening is smaller than the diameter of the wide opening; The wider opening is located on the side of the narrower opening near the grip; The diameter of the narrow opening is larger than the diameter of the sealing plate.

5. The raw material reaction vessel waste gas recovery device as described in claim 4, characterized in that: The sealing plate is disposed inside the wide opening; The sealing plate is tapered on the side near the narrow opening.

6. The raw material reaction vessel waste gas recovery device as described in claim 4, characterized in that: The storage cavity further includes: a sealing block; The sealing block is disposed on the side of the narrow opening near the wide opening; The closed block has a through hole in the middle; The diameter of the sealing plate is larger than the diameter of the through hole.

7. The raw material reaction vessel waste gas recovery device as described in claim 6, characterized in that: A limiting groove is provided at the bottom of the narrow opening; The closed block can be rotatably extended into the limiting groove.

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