Recrystallization filtering device for medical intermediates

Abstract

The utility model relates to the technical field of recrystallization filtering, and discloses a recrystallization filtering device for medical intermediates, which comprises a filter cartridge, filter screen cloth is arranged in an inner cavity of the filter cartridge, a support ring is detachably mounted at the lower end of the filter screen cloth, and a servo motor is fixedly mounted at the lower end of one side of the filter cartridge. According to the technical scheme, the fixed block can move up and down in a reciprocating mode, the ejector rod on the fixed block moves along with the fixed block, the ejector rod drives the filter screen cloth to move up and down in a reciprocating mode, and therefore the filter screen cloth is continuously in contact with the rubber ring, and the rubber ring scrapes solids which are not discharged to the edge of the supporting ring; the recrystallization accumulation on the filter screen cloth is further reduced, so that the subsequent medicine filtering efficiency is ensured, and the inner wall of the middle part of the filter cartridge can be scraped and cleaned to a certain extent in the vertical moving process of the support ring, so that the condition that the recrystallization is adhered and scaled for a long time is reduced, and the subsequent cleaning of workers is further facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of recrystallization filtration, in particular to a recrystallization filtration device for a pharmaceutical intermediate. Background Art

[0002] The main functions of medicine are to prevent diseases, treat diseases, reduce resistance to pain and help diagnose diseases. Usually, a filtering device is required before using the medicine. It is generally composed of a backwash pipe, a water distribution component, a support component, filter material, etc.

[0003] After searching, the publication number is (CN220443224U), which discloses a recrystallization filtration device for pharmaceutical intermediates, including a workbench and a circular tank, wherein the top left end of the workbench is fixedly connected to a water tank, the top middle end of the water tank is fixedly connected to a water pump, the output end of the water pump is connected to an L-shaped pipe, the right side of the L-shaped pipe is connected to the left side of the outer wall of the circular tank, the inner bottom end of the circular tank is rotatably connected to a hollow ring, the interior of the hollow ring is provided with tooth grooves, the top of the hollow ring is fixedly connected to a cleaning device, and the top left middle end of the workbench is fixedly connected to a second servo motor.

[0004] When implementing this technical solution, there are at least the following defects: although the utility model can filter the recrystallization of pharmaceutical intermediates, the recrystallization intercepted by the filtration is very easy to accumulate on the filter net, thereby affecting the subsequent filtration efficiency of the medicine, and it is not convenient to clean it up in a centralized manner, which is in urgent need of improvement. Therefore, we propose a recrystallization filtration device for pharmaceutical intermediates. Utility Model Content

[0005] The utility model aims to provide a recrystallization filtering device for pharmaceutical intermediates, which solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a recrystallization filtration device for pharmaceutical intermediates, comprising a filter cartridge, the inner cavity of the filter cartridge is provided with a filter cloth, the lower end of the filter cloth is detachably provided with a support ring, a servo motor is fixedly provided at the lower end of one side of the filter cartridge, and a transmission rod is provided at the output end of the servo motor;

[0007] A push rod is fixedly installed in the middle of the filter cloth, a fixing block is fixedly installed at the lower end of the push rod, a fixing ring is fixedly installed at the upper end of the inner cavity of the filter cylinder, and a scraper ring is fixedly installed at the lower end of the support ring.

[0008] By adopting the above technical scheme, the solid matter intercepted by the filtration can be discharged to the edge of the filter mesh cloth through the arc-shaped filter mesh cloth to ensure the filtering effect, and the fixed block can be moved up and down reciprocatingly, and the top rod on the fixed block moves accordingly, so that the top rod drives the filter mesh cloth to move up and down reciprocatingly, so that the filter mesh cloth is constantly in contact with the rubber ring, and the rubber ring scrapes the solid matter that has not been discharged to the edge of the support ring, further reducing the accumulation of recrystallization on the filter mesh cloth, thereby ensuring the subsequent filtering efficiency of medicines, and the middle inner wall of the filter cylinder can also be scraped and cleaned during the up and down movement of the support ring, thereby reducing the long-term adhesion and scaling of recrystallization, and further facilitating the cleaning of subsequent staff.

[0009] Optionally, a cam rod is fixedly mounted on the middle portion of the transmission rod, and the cam rod is arranged directly below the fixed block.

[0010] By adopting the above technical solution, it is convenient to set the cam rod, thereby facilitating the cam rod to lift the fixed block.

[0011] Optionally, a rubber ring is arranged on the inner side of the fixing ring, and the inner diameter of the rubber ring is smaller than the inner diameter of the supporting ring.

[0012] By adopting the above technical solution, it is convenient to scrape and clean the surface of the filter cloth that is in contact with it through the setting of the rubber ring.

[0013] Optionally, a support block is fixedly installed in the middle of the inner cavity of the filter cartridge, and the scraper ring is arranged above the support block.

[0014] By adopting the above technical solution, it is convenient to support the scraper ring through the support block by setting the support block.

[0015] Optionally, the size of the support ring is the same as that of the scraper ring, and the support ring and the scraper ring are respectively fitted with the inner wall of the filter cartridge.

[0016] By adopting the above technical solution, it is easy to ensure the fit between the support ring and the scraper ring and the inner wall of the filter cartridge, thereby ensuring the scraping and cleaning effect of the scraper ring.

[0017] Optionally, the inner diameter of the fixed ring is smaller than the inner diameter of the scraper ring.

[0018] By adopting the above technical solution, the contact and cleaning effect between the rubber ring and the filter cloth can be ensured.

[0019] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0020] The technical solution of the present application is to provide a filter cartridge, filter mesh, servo motor, cam rod, fixed ring, rubber ring and support block, which can not only discharge the solid matter intercepted by the filter to the edge of the filter mesh through the arc-shaped filter mesh to ensure the filtering effect, but also enable the fixed block to move up and down reciprocatingly, and the top rod on the fixed block moves accordingly, so that the top rod drives the filter mesh to move up and down reciprocatingly, so that the filter mesh is constantly in contact with the rubber ring, and the rubber ring scrapes the solid matter that is not discharged to the edge of the support ring, further reducing the accumulation of recrystallization on the filter mesh, thereby ensuring the subsequent filtering efficiency of the medicine, and can also scrape and clean the middle inner wall of the filter cartridge during the up and down movement of the support ring, thereby reducing the situation of recrystallization adhering to scale for a long time, further facilitating the cleaning of subsequent staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a schematic diagram of the overall structure of a recrystallization filtration device for a pharmaceutical intermediate of the utility model;

[0023] Figure 2 The utility model is a schematic diagram of the top view of the fixed ring of the recrystallization filtration device for pharmaceutical intermediates.

[0024] In the figure: 1. filter cartridge; 11. filter cloth; 12. support ring; 2. servo motor; 21. transmission rod; 22. cam rod; 23. push rod; 24. fixing block; 3. fixing ring; 31. rubber ring; 32. scraper ring; 4. support block. DETAILED DESCRIPTION

[0025] See also Figure 1-2 The utility model provides a technical solution: a recrystallization filtration device for a pharmaceutical intermediate, comprising a filter cartridge 1, the inner cavity of the filter cartridge 1 is provided with a filter cloth 11, the lower end of the filter cloth 11 is detachably provided with a support ring 12, a servo motor 2 is fixedly provided at the lower end of one side of the filter cartridge 1, and a transmission rod 21 is provided at the output end of the servo motor 2;

[0026] A push rod 23 is fixedly installed in the middle of the filter mesh cloth 11, and a fixing block 24 is fixedly installed at the lower end of the push rod 23. A fixing ring 3 is fixedly installed at the upper end of the inner cavity of the filter cartridge 1, and a scraper ring 32 is fixedly installed at the lower end of the support ring 12. A support block 4 is fixedly installed in the middle of the inner cavity of the filter cartridge 1, and the scraper ring 32 is arranged above the support block 4, so that the scraper ring 32 is supported by the support block 4 through the setting of the support block 4. The size of the support ring 12 is the same as that of the scraper ring 32, and the support ring 12 and the scraper ring 32 are respectively fitted with the inner wall of the filter cartridge 1, so as to ensure the fitting effect of the support ring 12 and the scraper ring 32 with the inner wall of the filter cartridge 1, thereby ensuring the scraping and cleaning effect of the scraper ring 32. The inner diameter of the fixing ring 3 is smaller than the inner diameter of the scraper ring 32, so as to ensure the contact and cleaning effect of the rubber ring 31 and the filter mesh cloth 11.

[0027] A cam rod 22 is fixedly installed in the middle of the transmission rod 21 , and the cam rod 22 is arranged just below the fixed block 24 , so that the cam rod 22 can lift the fixed block 24 conveniently through the arrangement of the cam rod 22 .

[0028] A rubber ring 31 is arranged inside the fixing ring 3, and the inner diameter of the rubber ring 31 is smaller than the inner diameter of the supporting ring 12, so that the surface of the filter cloth 11 in contact can be scraped and cleaned by the arrangement of the rubber ring 31.

[0029] During filtering, the arc-shaped filter mesh cloth 11 can discharge the solid matter intercepted by the filtration to the edge of the filter mesh cloth 11, and at the same time, the servo motor 2 is turned on, the servo motor 2 drives the transmission rod 21 to rotate, and the transmission rod 21 drives the cam rod 22 to rotate accordingly, and the cam rod 22 continuously lifts the fixed block 24, and then cooperates with the deadweight of the fixed block 24, so that the fixed block 24 moves up and down reciprocatingly, and the top rod 23 on the fixed block 24 moves accordingly, so that the top rod 23 drives the filter mesh cloth 11 to move up and down reciprocatingly, so that the filter mesh cloth 11 is constantly in contact with the rubber ring 31, so that the rubber ring 31 scrapes the solid matter that is not discharged to the edge of the support ring 12, further reducing the recrystallization accumulation on the filter mesh cloth 11, thereby ensuring the subsequent filtering efficiency of the medicine, and at the same time, in the process of the support ring 12 moving up and down, the scraping ring 32 connected to the support ring 12 will also move accordingly, and the middle inner wall of the filter cylinder 1 can be scraped and cleaned to a certain extent, thereby reducing the situation of recrystallization adhering to scaling for a long time, and further facilitating the cleaning of subsequent staff.

Claims

1. A recrystallization filtration device for a pharmaceutical intermediate, comprising a filter cartridge (1), characterized in that: The inner cavity of the filter cartridge (1) is provided with a filter cloth (11), the lower end of the filter cloth (11) is detachably mounted with a support ring (12), a servo motor (2) is fixedly mounted at the lower end of one side of the filter cartridge (1), and a transmission rod (21) is mounted at the output end of the servo motor (2); A push rod (23) is fixedly mounted in the middle of the filter mesh cloth (11), a fixing block (24) is fixedly mounted at the lower end of the push rod (23), a fixing ring (3) is fixedly mounted at the upper end of the inner cavity of the filter cartridge (1), and a scraper ring (32) is fixedly mounted at the lower end of the support ring (12).

2. The recrystallization filtration device for a pharmaceutical intermediate according to claim 1, characterized in that: A cam rod (22) is fixedly mounted in the middle of the transmission rod (21), and the cam rod (22) is arranged directly below the fixed block (24).

3. The recrystallization filtration device for a pharmaceutical intermediate according to claim 1, characterized in that: A rubber ring (31) is provided on the inner side of the fixing ring (3), and the inner diameter of the rubber ring (31) is smaller than the inner diameter of the supporting ring (12).

4. The recrystallization filtration device for a pharmaceutical intermediate according to claim 1, characterized in that: A support block (4) is fixedly mounted in the middle of the inner cavity of the filter cartridge (1), and the scraper ring (32) is arranged above the support block (4).

5. The recrystallization filtration device for a pharmaceutical intermediate according to claim 1, characterized in that: The size of the support ring (12) is the same as the size of the scraper ring (32), and the support ring (12) and the scraper ring (32) are respectively fitted with the inner wall of the filter cartridge (1).

6. The recrystallization filtration device for a pharmaceutical intermediate according to claim 1, characterized in that: The inner diameter of the fixed ring (3) is smaller than the inner diameter of the scraper ring (32).

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