A pharmaceutical intermediate waste gas absorption device

Abstract

The utility model discloses a kind of medical intermediate waste gas absorption devices, specifically related to waste gas absorption technical field, including base, the base top is equipped with the suction member for absorbing medical intermediate waste gas, the suction member passes through filter piece purification waste gas, and filter piece is detachably connected with suction member by connecting piece;The connecting piece includes the fixed ring being equipped in the top of movable ring.The utility model exposes filter piece by lifting movable ring, to facilitate the replacement of installation cylinder and filter cotton in it, then loosen movable ring, and push movable ring down by the resilience of spring, make the positioning frame on movable ring be sleeved on the outside of positioning plate, whereby installation cylinder is limited between communicating pipe and suction bucket, realize the disassembly and maintenance of filter piece, and overall structure is simple and convenient to operate, only need to lift movable ring to complete the disassembly and replacement of filter piece, whereby the convenience of disassembly and replacement filter piece can be effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of waste gas absorption technology, and more specifically to a waste gas absorption device for pharmaceutical intermediates. Background Technology

[0002] The synthesis and production of pharmaceutical intermediates often involve the use of large quantities of organic solvents (such as ethanol, toluene, and chloroform). These solvents are prone to volatilization during reaction, extraction, and drying processes, forming waste gases. These waste gases are typically characterized by complex compositions (containing acidic gases, organic pollutants, and particulate matter), large concentration fluctuations, and high toxicity. Direct emission without effective treatment will not only pollute the atmosphere but may also endanger the health of nearby residents. Therefore, centralized treatment using waste gas absorption devices is necessary.

[0003] As shown in the prior art published in CN222324613U, although this prior art exposes the slot by twisting the movable sleeve, allowing the operator to remove the filter cotton, replace it with a new one, and then seal the slot by twisting the movable sleeve again, this method ensures sufficient contact between the gas and the filter cotton and is quick and convenient for subsequent replacements, making it quite practical. However, when removing the filter cotton, the operator needs to repeatedly twist the movable sleeve to misalign with the slot, which is a cumbersome process that affects the operator's ease of operation and the efficiency of removing the filter cotton. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pharmaceutical intermediate waste gas absorption device, which allows the filter element to be removed and replaced by lifting the movable ring. Then, the spring rebound force drives the positioning frame on the movable ring to engage the positioning plate, thereby achieving the effect of convenient disassembly and assembly of the filter element, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pharmaceutical intermediate waste gas absorption device, comprising a base, wherein the top of the base is provided with a suction component for absorbing pharmaceutical intermediate waste gas, the suction component purifies the waste gas through a filter component, and the filter component is detachably connected to the suction component through a connector.

[0006] The connector includes a fixed ring at the top of the movable ring. Multiple fixed posts arranged in a circular array are bolted to the outside of the fixed ring, and the bottom ends of the fixed posts penetrate the movable ring and extend to the bottom of the movable ring. A corrugated tube for connecting the fixed ring is installed at the top of the movable ring. Two positioning frames for limiting the filter element are installed at the top of the movable ring. Multiple springs are provided on the outside of the corrugated tube, which are respectively sleeved on the outside of the multiple fixed posts.

[0007] In a preferred embodiment, the suction component includes a transfer box disposed on the top of the base, an exhaust pipe fixedly connected to one side of the transfer box, an air pump and a telescopic pipe connected to the air pump installed on the top of the transfer box, a connecting pipe fixedly connected to the top of the telescopic pipe, and a suction bucket provided at the bottom of the front end of the connecting pipe.

[0008] The filter element is located between the connecting pipe and the suction bucket, and the corrugated pipe is sleeved on the outside of the filter element. The fixed ring and the movable ring are respectively sleeved on the outside of the end of the connecting pipe and the suction bucket that are close to each other, and the bottom end of the fixed column is fixed together with the top of the suction bucket.

[0009] In a preferred embodiment, the filter element includes a mounting cylinder disposed at the top of the suction bucket, the mounting cylinder having filter cotton inside, an air hole at the bottom end of the mounting cylinder, and a limiting ring installed inside the connecting pipe at the top end of the mounting cylinder.

[0010] Positioning plates are installed on one side of the positioning frame on both sides of the mounting cylinder, and the positioning frame is sleeved on the outside of the positioning plate.

[0011] In a preferred embodiment, a support column is installed at the top of the rear end of the base. The top of the support column has an installation groove, and an adjustment column is provided inside the installation groove. An adjustment ring is threaded to the top of the adjustment column, and the adjustment ring is movably connected to the top of the support column through a bearing.

[0012] A fixed clamp is installed on the front side of the top of the adjusting column, and a movable clamp is installed on the front side of the fixed clamp by bolts. The movable clamp is sleeved on the outside of the connecting pipe.

[0013] In a preferred embodiment, a retaining plate is installed inside the mounting groove, and a retaining groove is provided on one side of the bottom end of the adjusting column corresponding to the retaining plate, with the retaining plate located inside the retaining groove.

[0014] In a preferred embodiment, both the cross-section of the card plate and the cross-section of the card slot are rectangular, and the outer side of the card plate is in contact with the inner wall of the card slot.

[0015] The technical effects and advantages of this utility model are as follows:

[0016] The filter element is exposed by lifting the movable ring, making it easy to remove the installation cylinder and the filter cotton inside for replacement. Then, the movable ring is released, and the spring's rebound force pushes the movable ring down, causing the positioning frame on the movable ring to fit onto the outside of the positioning plate. This confines the installation cylinder between the connecting pipe and the suction hopper, enabling the removal and maintenance of the filter element. The overall structure is simple and convenient to operate; simply lifting the movable ring is enough to remove and replace the filter element, thus effectively improving the convenience of removing and installing the filter element.

[0017] By removing the bolts, the top of the fixing column is freed from its restricted position, allowing the suction bucket and fixing column to be removed as a whole. This also facilitates the removal and replacement of the spring on the fixing column, achieving the effect of convenient spring removal and replacement. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the bellows of this utility model;

[0020] Figure 3 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0021] Figure 4 This is a sectional view of the mounting cylinder of this utility model;

[0022] Figure 5 This is a side sectional view of the support column of this utility model;

[0023] Figure 6 This is an exploded view of the fixed column of this utility model.

[0024] The attached diagram is labeled as follows: 1. Base; 2. Movable ring; 3. Fixed ring; 4. Fixed column; 5. Corrugated pipe; 6. Positioning frame; 7. Spring; 8. Transfer box; 9. Exhaust pipe; 10. Air pump; 11. Telescopic pipe; 12. Connecting pipe; 13. Suction bucket; 14. Mounting cylinder; 15. Filter cotton; 16. Air hole; 17. Limiting ring; 18. Positioning plate; 19. Support column; 20. Mounting groove; 21. Adjusting column; 22. Adjusting ring; 23. Fixed clamp; 24. Movable clamp; 25. Clamping plate; 26. Clamping slot. Detailed Implementation

[0025] 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.

[0026] Refer to the instruction manual appendix Figure 1 - Appendix Figure 6This utility model provides a pharmaceutical intermediate waste gas absorption device, including a base 1. The top of the base 1 is provided with a suction component for absorbing pharmaceutical intermediate waste gas. The suction component purifies the waste gas through a filter. The suction component includes a transfer box 8 located on the top of the base 1. An exhaust pipe 9 is fixedly connected to one side of the transfer box 8. An air pump 10 and a telescopic pipe 11 connected to the air pump 10 are installed on the top of the transfer box 8. A connecting pipe 12 is fixedly connected to the top of the telescopic pipe 11. A suction bucket 13 is provided at the bottom of the front end of the connecting pipe 12. The filter is located between the connecting pipe 12 and the suction bucket 13, and a corrugated pipe 5 is sleeved on the outside of the filter. A fixed ring 3 and a movable ring 2 are respectively sleeved on the outside of the end of the connecting pipe 12 and the suction bucket 13 that are close to each other, and the bottom end of the fixed column 4 is fixed together with the top of the suction bucket 13.

[0027] The aforementioned suction components are connected through the telescopic pipe 11, the connecting pipe 12, and the suction bucket 13, so that when the air pump 10 is running, the exhaust gas is transported to the interior of the transfer box 8 through the suction bucket 13, the connecting pipe 12, and the telescopic pipe 11, and discharged through the exhaust pipe 9 on the transfer box 8. During the process of suctioning the exhaust gas, the exhaust gas will first come into contact with the filter element, and after being filtered by the filter element, it will be discharged, thereby completing the absorption and discharge treatment of the exhaust gas.

[0028] like Figure 3 and Figure 4 As shown, to achieve the filtration of exhaust gas, a filter element is required. The filter element includes an installation cylinder 14 located at the top of the suction bucket 13. The installation cylinder 14 contains filter cotton 15, and an air hole 16 is opened at the bottom end of the installation cylinder 14. A limiting ring 17 installed inside the connecting pipe 12 is located at the top end of the installation cylinder 14. Positioning plates 18 are installed on both sides of the installation cylinder 14 corresponding to the positioning frame 6. The positioning frame 6 is sleeved on the outside of the positioning plate 18. Before the exhaust gas is transported to the connecting pipe 12 through the suction bucket 13, the exhaust gas will come into contact with the filter cotton 15 inside the installation cylinder 14. The filter cotton 15 filters the impurities in the exhaust gas, which can effectively prevent the exhaust gas from being directly discharged and causing pollution. In order to prevent the suction force of the air pump 10 from causing the filter cotton 15 to shake, the limiting ring 17 inside the connecting pipe 12 limits the filter cotton 15 to ensure the stability of the filter cotton 15.

[0029] And such Figure 1 and Figure 5As shown, when using the above-mentioned suction and filter components to absorb exhaust gas, the operator needs to first move the base 1 to a suitable position, and then adjust the suction bucket 13 to a suitable position to absorb the exhaust gas. A support column 19 is installed at the top rear end of the base 1. The support column 19 has an installation groove 20 at its top, and an adjusting column 21 is located inside the installation groove 20. An adjusting ring 22 is threaded to the top of the adjusting column 21, and the adjusting ring 22 is movably connected to the top of the support column 19 via a bearing. A fixed clamp 23 is installed on the front side of the top of the adjusting column 21, and a movable clamp 24 is bolted to the front side of the fixed clamp 23. The movable clamp 24 is fitted onto the outside of the connecting pipe 12. The operator first uses bolts to assemble the movable clamp 24 on the connecting pipe 12 onto the fixed clamp 23, thus connecting the connecting pipe 12 and the adjusting column 21 as one unit, and then rotates the adjusting ring 22 threaded to the adjusting column 21.

[0030] The mounting groove 20 has a retaining plate 25 installed inside, and the bottom of the adjusting column 21 has a retaining groove 26 on one side corresponding to the retaining plate 25. The retaining plate 25 is located inside the retaining groove 26, and both the cross-section of the retaining plate 25 and the cross-section of the retaining groove 26 are rectangular. The outside of the retaining plate 25 is in contact with the inner wall of the retaining groove 26. Thus, when the adjusting ring 22 is rotated to drive the adjusting column 21 to move, the adjusting column 21 is limited by the retaining plate 25 and the retaining groove 26 and moves longitudinally in a straight line. This makes it easy to operate the adjusting column 21 to adjust the position of the connecting pipe 12 and the suction bucket 13, so as to adjust the suction bucket 13 to a suitable position for waste gas absorption.

[0031] After prolonged use, impurities will adhere to the outside of the filter cotton 15, affecting its filtration performance. Therefore, easy disassembly and reassembly of the filter element is necessary. Figure 1 , Figure 2 , Figure 3 and Figure 6 As shown, the filter element is detachably connected to the suction element via a connector; the connector includes a fixed ring 3 located at the top of the movable ring 2, and multiple fixed posts 4 arranged in a circular array are bolted to the outside of the fixed ring 3, with the bottom end of the fixed posts 4 penetrating through the movable ring 2 and extending to the bottom of the movable ring 2. A corrugated tube 5 for connecting the fixed ring 3 is installed at the top of the movable ring 2, and two positioning frames 6 for limiting the filter element are installed at the top of the movable ring 2. Multiple springs 7 are respectively sleeved on the outside of the multiple fixed posts 4 of the corrugated tube 5.

[0032] When the staff disassembles the filter cotton 15, the staff lifts the movable ring 2 with one hand to compress the bellows 5 and the spring 7, thereby exposing the installation cylinder 14 placed between the connecting pipe 12 and the suction bucket 13. Then, the staff directly removes the installation cylinder 14 with the other hand, and then replaces the filter cotton 15 inside the installation cylinder 14, thereby achieving the disassembly of the filter cotton 15.

[0033] After replacing the filter cotton 15, place the installation cylinder 14 between the connecting pipe 12 and the suction bucket 13. Then, loosen the movable ring 2, allowing the movable ring 2 to move the positioning frame 6 downwards by the rebound force of the spring 7, so that the positioning frame 6 fits onto the positioning plate 18 on the installation cylinder 14. The compression of the positioning frame 6 onto the positioning plate 18 limits the installation cylinder 14 to be positioned between the connecting pipe 12 and the suction bucket 13, preventing the installation cylinder 14 from becoming loose or misaligned, thus ensuring the connection stability between the installation cylinder 14, the connecting pipe 12, and the suction bucket 13. At the same time, the overall structure is simple and convenient to operate; simply lifting the movable ring 2 is enough to complete the disassembly and replacement of the filter element, thereby effectively improving the convenience of disassembling and assembling the filter element.

[0034] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 pharmaceutical intermediate waste gas absorption device, comprising a base (1), characterized in that: The base (1) is provided with a suction component at the top for absorbing waste gas from pharmaceutical intermediates. The suction component purifies the waste gas through a filter, and the filter is detachably connected to the suction component through a connector. The connector includes a fixed ring (3) located at the top of the movable ring (2). Multiple fixed posts (4) arranged in a ring array are bolted to the outside of the fixed ring (3). The bottom end of the fixed posts (4) passes through the movable ring (2) and extends to the bottom of the movable ring (2). A corrugated tube (5) for connecting the fixed ring (3) is installed at the top of the movable ring (2). Two positioning frames (6) for limiting the filter are installed at the top of the movable ring (2). Multiple springs (7) are respectively sleeved on the outside of the corrugated tube (5) and mounted on the outside of the multiple fixed posts (4).

2. The pharmaceutical intermediate waste gas absorption device according to claim 1, characterized in that: The suction component includes a transfer box (8) located on the top of the base (1), an exhaust pipe (9) fixedly connected to one side of the transfer box (8), an air pump (10) and a telescopic pipe (11) connected to the air pump (10) are installed on the top of the transfer box (8), a connecting pipe (12) is fixedly connected to the top of the telescopic pipe (11), and a suction bucket (13) is provided at the bottom of the front end of the connecting pipe (12). The filter element is located between the connecting pipe (12) and the suction bucket (13), and the corrugated pipe (5) is sleeved on the outside of the filter element. The fixed ring (3) and the movable ring (2) are respectively sleeved on the outside of the connecting pipe (12) and the suction bucket (13) at the adjacent ends, and the bottom end of the fixed column (4) is fixed together with the top of the suction bucket (13).

3. The pharmaceutical intermediate waste gas absorption device according to claim 2, characterized in that: The filter element includes an installation cylinder (14) located at the top of the suction bucket (13), a filter cotton (15) inside the installation cylinder (14), an air hole (16) at the bottom end of the installation cylinder (14), and a limiting ring (17) installed inside the connecting pipe (12) at the top end of the installation cylinder (14). Positioning plates (18) are installed on both sides of the mounting cylinder (14) corresponding to the positioning frame (6), and the positioning frame (6) is sleeved on the outside of the positioning plate (18).

4. The pharmaceutical intermediate waste gas absorption device according to claim 2, characterized in that: The base (1) has a support column (19) installed at the top of its rear end. The support column (19) has an installation groove (20) at its top and an adjustment column (21) inside the installation groove (20). The top of the adjustment column (21) is threaded with an adjustment ring (22), which is movably connected to the top of the support column (19) via a bearing. A fixed clamp (23) is installed on the front side of the top of the adjusting column (21), and a movable clamp (24) is installed on the front side of the fixed clamp (23) by bolts. The movable clamp (24) is sleeved on the outside of the connecting pipe (12).

5. The pharmaceutical intermediate waste gas absorption device according to claim 4, characterized in that: The mounting slot (20) is equipped with a card plate (25), and the bottom end of the adjusting column (21) is provided with a card slot (26) on one side corresponding to the card plate (25), and the card plate (25) is located inside the card slot (26).

6. The pharmaceutical intermediate waste gas absorption device according to claim 5, characterized in that: The cross-section of the card plate (25) and the cross-section of the card slot (26) are both rectangular, and the outside of the card plate (25) is in contact with the inner wall of the card slot (26).

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