Filtering device for purifying medical intermediates

Abstract

The utility model discloses a filtering device for purifying medical intermediates, which comprises a fixed plate, a second frame body and a third frame body, the middle part of the fixed plate is fixedly connected with a bin body, the upper part of the bin body is fixedly connected with an electric telescopic rod, the output end of the electric telescopic rod is fixedly connected with an extrusion piston, and the output end of the extrusion piston is fixedly connected with a screw rod. A feeding port is fixedly connected to the upper portion of the left side of the bin body, a motor is fixedly connected to the lower portion of the left side of the bin body, a stirring rod is fixedly connected to the output end of the motor, a first frame body is arranged below the bin body, a first filtering layer is fixedly connected to the middle of the first frame body, and a funnel is fixedly connected to the lower portion of the first frame body. And the lower part of the funnel is fixedly connected with a discharging bin. Through the structure, various different filtering layers can be utilized to purify and filter various different medical intermediates, and the filtering layers can be easily detached and cleaned, so that the filtering layers always have a good filtering effect.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical intermediates, and particularly relates to a filtering device for purifying pharmaceutical intermediates. Background Art

[0002] The filtration of pharmaceutical intermediates is a crucial step in the production process, aiming to remove unwanted impurities such as solid particles, macromolecular substances, organic substances, colloids, and other unnecessary components, thereby improving the purity of the intermediates. This process usually includes multiple consecutive unit operations. Throughout the process, strictly adhering to good manufacturing practices is the basis for ensuring product quality and safety.

[0003] In the prior art, different pharmaceutical intermediates need to be filtered using different filter layers. Some pharmaceutical intermediate filtering devices have only a single type of filter layer inside and cannot be replaced, so they can only filter a few types of pharmaceutical intermediates, and their functionality is relatively single. The filter layers in some pharmaceutical intermediate filtering devices are not suitable for disassembly and cleaning. During the long-term use of the pharmaceutical intermediate filtering device, as impurities accumulate inside the filter layer, the filtering effect of the pharmaceutical intermediate filtering device deteriorates. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a filtering device for purifying pharmaceutical intermediates, which can use a variety of different filter layers to purify and filter a variety of different pharmaceutical intermediates, and can easily disassemble and clean the filter layer, so that the filter layer always has a good filtering effect.

[0005] To achieve the above purpose, a filtering device for purifying pharmaceutical intermediates is provided, including a fixing plate, a second frame body, and a third frame body. A storage body is fixedly connected to the middle of the fixing plate. An electric telescopic rod is fixedly connected above the storage body. The output end of the electric telescopic rod is fixedly connected to a pressing piston. Limiting rods are fixedly connected to the left and right sides of the pressing piston. A locking block is fixedly connected above the limiting rods. A feed inlet is fixedly connected to the upper left side of the storage body. A motor is fixedly connected to the lower left side of the storage body. The output end of the motor is fixedly connected to a stirring rod. A first frame body is arranged below the storage body. A first filter layer is fixedly connected to the middle of the first frame body. The material of the first filter layer is stainless steel. A funnel is fixedly connected below the first frame body. A discharge bin is fixedly connected below the funnel. A discharge switch is arranged above the discharge bin.

[0006] According to the described filtering device for purifying pharmaceutical intermediates, a sealing layer is fixedly connected above the first frame body, and a fixing frame is fixedly connected below the fixing plate.

[0007] According to the described filtering device for the purification of pharmaceutical intermediates, the left and right sides of the first frame body are fixedly connected with first connecting blocks, openings are provided above the first connecting blocks, the left and right sides below the bin body are fixedly connected with second connecting blocks, bolts penetrate through the upper parts of the second connecting blocks, and nuts are threadedly connected to the lower ends of the bolts.

[0008] According to the described filtering device for the purification of pharmaceutical intermediates, the extrusion piston is located inside the bin body, and the extrusion piston is slidably connected to the bin body.

[0009] According to the described filtering device for the purification of pharmaceutical intermediates, the stirring rod is located inside the bin body, and the stirring rod is rotatably connected to the bin body.

[0010] According to the described filtering device for the purification of pharmaceutical intermediates, a second filter layer is fixedly connected to the middle of the second frame body, the material of the second filter layer is a microporous filter membrane, the left and right sides of the second frame body are fixedly connected with first connecting blocks, openings are provided above the first connecting blocks, a funnel is fixedly connected to the lower part of the second frame body, and a sealing layer is fixedly connected to the upper part of the second frame body.

[0011] According to the described filtering device for the purification of pharmaceutical intermediates, a third filter layer is fixedly connected to the middle of the third frame body, the material of the third filter layer is activated carbon, the left and right sides of the third frame body are fixedly connected with first connecting blocks, openings are provided above the first connecting blocks, a funnel is fixedly connected to the lower part of the third frame body, and a sealing layer is fixedly connected to the upper part of the third frame body.

[0012] The present utility model has the following beneficial effects:

[0013] 1. Compared with the prior art, for the described filtering device for the purification of pharmaceutical intermediates, by providing a first frame body, and a first filter layer is fixedly connected inside the first frame body, the material of the first filter layer is stainless steel, by providing a second frame body, and a second filter layer is fixedly connected to the middle of the second frame body, the material of the second filter layer is a microporous filter membrane, by providing a third frame body, and a third filter layer is fixedly connected inside the third frame body, and the material of the third filter layer is activated carbon, different impurities can be filtered by replacing different frame bodies.

[0014] 2. Compared with the prior art, for the described filtering device for the purification of pharmaceutical intermediates, by rotating the bolt, the bolt and the nut become loose, and the nut is separated from the bolt. At this time, the operator can remove the first frame body, which facilitates the operator to clean the filter layer.

[0015] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. Brief Description of the Drawings

[0016] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0017] Figure 1 is a perspective view of a filtering device for purifying pharmaceutical intermediates according to the present utility model;

[0018] Figure 2 is a sectional view of the bin body of a filtering device for purifying pharmaceutical intermediates according to the present utility model;

[0019] Figure 3 is a perspective view of the first frame body of a filtering device for purifying pharmaceutical intermediates according to the present utility model;

[0020] Figure 4 is a Figure 2 magnified view of part A of a filtering device for purifying pharmaceutical intermediates according to the present utility model.

[0021] Legend Explanation:

[0022] 1. Fixed plate; 2. Bin body; 3. Electric telescopic rod; 4. Extrusion piston; 5. Limiting rod; 6. Locking block; 7. Feeding port; 8. Motor; 9. Stirring rod; 10. First frame body; 11. First filter layer; 12. First connecting block; 13. Opening; 14. Second connecting block; 15. Bolt; 16. Nut; 17. Funnel; 18. Discharge bin; 19. Discharge switch; 20. Second frame body; 21. Second filter layer; 22. Third frame body; 23. Third filter layer; 24. Sealing layer; 25. Fixed frame. Detailed Embodiment

[0023] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0024] Refer to Figures 1-4, in an embodiment of the present utility model, a filtering device for purifying pharmaceutical intermediates includes a fixing plate 1, a second frame 20 and a third frame 22. A storage body 2 is fixedly connected to the middle of the fixing plate 1. An electric telescopic rod 3 is fixedly connected above the storage body 2. An extrusion piston 4 is fixedly connected to the output end of the electric telescopic rod 3. The extrusion piston 4 is located inside the storage body 2 and is slidably connected to the storage body 2. Limiting rods 5 are fixedly connected to the left and right sides of the extrusion piston 4. A locking block 6 is fixedly connected above the limiting rods 5. A feed inlet 7 is fixedly connected to the upper left side of the storage body 2. A motor 8 is fixedly connected to the lower left side of the storage body 2. A stirring rod 9 is fixedly connected to the output end of the motor 8. The stirring rod 9 is located inside the storage body 2 and is rotatably connected to the storage body 2. A first frame 10 is arranged below the storage body 2. A sealing layer 24 is fixedly connected above the first frame 10. A fixing frame 25 is fixedly connected below the fixing plate 1. A first filter layer 11 is fixedly connected to the middle of the first frame 10. The material of the first filter layer 11 is stainless steel. First connecting blocks 12 are fixedly connected to the left and right sides of the first frame 10. An opening 13 is opened above the first connecting block 12. Second connecting blocks 14 are fixedly connected to the lower left and right sides of the storage body 2. A bolt 15 is connected through the upper part of the second connecting block 14. A nut 16 is threadedly connected to the lower end of the bolt 15. A funnel 17 is fixedly connected below the first frame 10. A discharge bin 18 is fixedly connected below the funnel 17. A discharge switch 19 is arranged above the discharge bin 18. A second filter layer 21 is fixedly connected to the middle of the second frame 20. The material of the second filter layer 21 is a microporous filter membrane. First connecting blocks 12 are fixedly connected to the left and right sides of the second frame 20. An opening 13 is opened above the first connecting block 12. A funnel 17 is fixedly connected below the second frame 20. A sealing layer 24 is fixedly connected above the second frame 20. A third filter layer 23 is fixedly connected to the middle of the third frame 22. The material of the third filter layer 23 is activated carbon. First connecting blocks 12 are fixedly connected to the left and right sides of the third frame 22. An opening 13 is opened above the first connecting block 12. A funnel 17 is fixedly connected below the third frame 22. A sealing layer 24 is fixedly connected above the third frame 22.

[0025] In the above structure, by providing a feed inlet 7, the operator can add the pharmaceutical intermediate to be filtered into the storage body 2. Driven by the electric telescopic rod 3, the extrusion piston 4 moves downward, thereby squeezing the pharmaceutical intermediate to move downward. Driven by the motor 8, the stirring rod 9 rotates. Driven by the stirring rod 9, the pharmaceutical intermediate inside the storage body 2 is stirred, so that the impurities between the pharmaceutical intermediates can be better filtered.

[0026] Working principle: When using this filtering device for purifying pharmaceutical intermediates, first, the operator adds the liquid pharmaceutical intermediate to be filtered into the interior of the storage body 2 through the feed port 7. Then, turn on the switch of the electric telescopic rod 3 to make the extrusion piston 4 move downward, so that it moves the filtered pharmaceutical intermediate downward. Then, turn on the switch of the motor 8 to make the stirring rod 9 rotate to cooperate with the filtration of the pharmaceutical intermediate. When the extrusion piston 4 moves downward until it exceeds the feed port 7, turn on the discharge switch 19, and at this time, the filtration of the pharmaceutical intermediate can be completed.

[0027] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A filtering device for the purification of pharmaceutical intermediates, characterized in that It includes a fixing plate (1), a second housing (20) and a third housing (22). A storage body (2) is fixedly connected to the middle of the fixing plate (1). An electric telescopic rod (3) is fixedly connected above the storage body (2). An extrusion piston (4) is fixedly connected to the output end of the electric telescopic rod (3). Limiting rods (5) are fixedly connected to the left and right sides of the extrusion piston (4). A locking block (6) is fixedly connected above the limiting rods (5). A feed inlet (7) is fixedly connected above the left side of the storage body (2). A motor (8) is fixedly connected below the left side of the storage body (2). A stirring rod (9) is fixedly connected to the output end of the motor (8). A first housing (10) is arranged below the storage body (2). A first filter layer (11) is fixedly connected to the middle of the first housing (10). The material of the first filter layer (11) is stainless steel. A funnel (17) is fixedly connected below the first housing (10). A discharge bin (18) is fixedly connected below the funnel (17). A discharge switch (19) is arranged above the discharge bin (18).

2. The filtration device for purifying pharmaceutical intermediates according to claim 1, characterized in that, A sealing layer (24) is fixedly connected above the first housing (10). A fixing frame (25) is fixedly connected below the fixing plate (1).

3. A filtering device for purifying pharmaceutical intermediates according to claim 1, wherein, First connecting blocks (12) are fixedly connected to the left and right sides of the first housing (10). An opening (13) is formed above the first connecting blocks (12). Second connecting blocks (14) are fixedly connected to the left and right sides below the storage body (2). A bolt (15) passes through and is connected above the second connecting blocks (14). A nut (16) is threadedly connected to the lower end of the bolt (15).

4. A filtering device for purifying pharmaceutical intermediates according to claim 1, characterized in that, The extrusion piston (4) is located inside the storage body (2), and the extrusion piston (4) is slidably connected to the storage body (2).

5. The filtration device for purifying pharmaceutical intermediates according to claim 1, wherein, The stirring rod (9) is located inside the storage body (2), and the stirring rod (9) is rotatably connected to the storage body (2).

6. The filtration device for purifying pharmaceutical intermediates according to claim 1, characterized in that, A second filter layer (21) is fixedly connected to the middle of the second housing (20). The material of the second filter layer (21) is a microporous filter membrane. First connecting blocks (12) are fixedly connected to the left and right sides of the second housing (20). An opening (13) is formed above the first connecting blocks (12). A funnel (17) is fixedly connected below the second housing (20). A sealing layer (24) is fixedly connected above the second housing (20).

7. A filtering device for purifying pharmaceutical intermediates according to claim 1, characterized in that, A third filter layer (23) is fixedly connected to the middle of the third housing (22). The material of the third filter layer (23) is activated carbon. First connecting blocks (12) are fixedly connected to the left and right sides of the third housing (22). An opening (13) is formed above the first connecting blocks (12). A funnel (17) is fixedly connected below the third housing (22). A sealing layer (24) is fixedly connected above the third housing (22).

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