Impurity removal device for oseltamivir intermediate production

Abstract

The utility model discloses an impurity removal device for oseltamivir intermediate production, which belongs to the technical field of medicine processing, and comprises a shell, a feeding component, a filtering component and a driving component, the shell comprises a shell, a sealing groove is formed in one side of the shell, a sealing plate is arranged in the sealing groove, the feeding component comprises a water pump, and the filtering component is arranged in the water pump. The water inlet end of the water pump is connected with the liquid inlet pipe, and the water outlet end of the water pump is connected with the guide pipe; according to the utility model, the intermediate body in the external liquid conveying pipeline can be sprayed on the surface of the filter screen from the plurality of liquid spraying pipes under the action of the working water pump, and the acting force between the intermediate body sprayed on the surface of the filter screen and the filter screen is increased, so that impurities in the intermediate body can be efficiently filtered by the filter screen; and then the cleaning tool is in contact with the filter screen and the filter screen is rotated, so that the filter screen can be cleaned, the operation is convenient, and the device can be conveniently maintained.

Description

Technical Field

[0001] This utility model belongs to the field of pharmaceutical processing technology, specifically relating to an impurity removal device for the production of oseltamivir intermediates. Background Technology

[0002] During the production process of oseltamivir intermediates, solid impurities may be present inside, so it is necessary to use a filter screen to filter out the impurities in the intermediates;

[0003] However, existing intermediates are filtered by passing them through a housing with a filter screen. The intermediates pass through the filter screen under their own weight, but the force exerted on the intermediates during the filtration process is small, resulting in poor filtration efficiency. Furthermore, the filter screen, which is contaminated on the surface, needs to be disassembled for cleaning, making maintenance inconvenient. Therefore, an impurity removal device for the production of oseltamivir intermediates is needed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an impurity removal device for the production of oseltamivir intermediates, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impurity removal device for the production of oseltamivir intermediates, comprising a shell, a feeding assembly, a filtering assembly, and a driving assembly. The shell includes a housing with a sealing groove on one side and a sealing plate inside the sealing groove. The feeding assembly includes a water pump, with its inlet end connected to an inlet pipe and its outlet end connected to a conduit. The bottom end of the conduit is connected to several spray pipes. The filtering assembly includes a filter screen with a bearing clamped to its outer surface. The bearing is connected inside the housing. The driving assembly includes several operating rods connected to the filter screen.

[0006] As a preferred embodiment, the bottom of the housing is provided with a discharge port.

[0007] As a preferred embodiment, the water pump is connected to the upper surface of the housing.

[0008] As a preferred embodiment, the conduit is connected within the housing.

[0009] As a preferred embodiment, the conduit is connected to several spray pipes.

[0010] By setting up spray pipes, which are inclined, the impurities filtered out of the filter screen can be rinsed. Furthermore, since there are several spray pipes, the intermediate material inside the guide tube can be evenly sprayed onto the filter screen surface through these multiple spray pipes.

[0011] As a preferred embodiment, the filter screen is semi-circular in shape, and several operating rods are arranged in a circumferential array.

[0012] By setting up a filter screen, which is semi-circular, impurities filtered out from the screen surface can be moved to the outermost side of the screen by the liquid sprayed from the spray pipe; by setting up an operating lever, the filter screen can be rotated.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention, by comprising a feeding assembly, a filtering assembly, and a driving assembly, allows an intermediate body within an external infusion pipeline to be sprayed onto the filter screen surface from several spray pipes under the action of a working water pump. The increased force between the intermediate body and the filter screen increases the efficiency of filtering impurities in the intermediate body. Furthermore, the filter screen can be cleaned simply by opening the sealing plate, contacting the cleaning tool with the filter screen, and rotating the filter screen. This convenient operation makes the device easy to maintain.

[0015] This utility model features a spray pipe that is angled to rinse impurities filtered from the filter screen surface. Furthermore, since there are multiple spray pipes, the intermediate material inside the guide tube can be evenly sprayed onto the filter screen surface through these multiple spray pipes. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention from the front view;

[0017] Figure 2 This is a side-view three-dimensional structural schematic diagram of the present invention;

[0018] Figure 3 This is a partial side view of the three-dimensional structure of the present invention;

[0019] Figure 4 This is a frontal three-dimensional cross-sectional structural diagram of the present invention;

[0020] Figure 5 This is a top-view three-dimensional cross-sectional structural diagram of the present invention.

[0021] In the diagram: 1. Outer shell; 11. Housing; 12. Discharge port; 13. Sealing groove; 14. Sealing plate; 2. Feeding assembly; 21. Water pump; 22. Liquid inlet pipe; 23. Conduit; 24. Spray pipe; 3. Filter assembly; 31. Filter screen; 32. Bearing; 4. Drive assembly; 41. Operating lever. Detailed Implementation

[0022] The present invention will be further described below with reference to the embodiments.

[0023] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0024] Please see Figure 1-5 This utility model provides an impurity removal device for the production of oseltamivir intermediates, including a shell 1, a feeding assembly 2, a filtering assembly 3, and a driving assembly 4. The shell 1 includes a housing 11, a sealing groove 13 is provided on one side of the housing 11, and a sealing plate 14 is provided in the sealing groove 13. The feeding assembly 2 includes a water pump 21, the water inlet end of the water pump 21 is connected to a liquid inlet pipe 22, the water outlet end of the water pump 21 is connected to a conduit 23, and the bottom end of the conduit 23 is connected to several spray pipes 24. The filtering assembly 3 includes a filter screen 31, and a bearing 32 is clamped to the outside of the filter screen 31. The bearing 32 is connected inside the housing 11. By setting the bearing 32, the bearing 32 can limit and fix the filter screen 31 inside the housing 11.

[0025] The drive assembly 4 includes several operating levers 41, which are connected to the filter screen 31. By setting the drive assembly 4, the drive assembly 4 can not only be set as an operating lever 41, but also as an automatic drive structure such as a motor. When the drive assembly 4 is set as a motor, the drive assembly 4 is connected to the bottom of the middle part of the filter screen 31, and the drive assembly 4 is connected to the housing 11. Then the working drive assembly 4 can drive the filter screen 31 to rotate automatically.

[0026] The bottom of the housing 11 is provided with a discharge port 12, the water pump 21 is connected to the upper surface of the housing 11, the conduit 23 is connected inside the housing 11, and the conduit 23 is connected to several spray pipes 24. By setting the spray pipes 24, since the spray pipes 24 are set in an inclined shape, the inclined spray pipes 24 can wash the impurities filtered out of the surface of the filter screen 31. Since there are several spray pipes 24, the intermediate body in the conduit 23 can be evenly sprayed onto the surface of the filter screen 31 through several spray pipes 24.

[0027] The filter screen 31 is set to a semi-circular shape. By setting the filter screen 31 to a semi-circular shape, the impurities filtered out on the surface of the filter screen 31 can move to the outermost side of the filter screen 31 under the flushing of the liquid sprayed out by the spray pipe 24.

[0028] Several operating levers 41 are arranged in a circular array. By setting the operating levers 41, the filter screen 31 can be rotated.

[0029] The working principle and usage process of this utility model: When the device needs to be used, the inlet pipe 22 is connected to the external inlet pipe. Under the action of the working water pump 21, the liquid intermediate is sprayed onto the surface of the filter screen 31 through the inlet pipe 22 and the conduit 23 via several spray pipes 24. The liquid intermediate sprayed from the several spray pipes 24 can efficiently pass through the filter screen 31, thereby improving the filtration efficiency of impurities in the intermediate.

[0030] When it is necessary to clean the filter screen 31, open the sealing plate 14, and then insert the cleaning tool into the housing 11 through the sealing groove 13. Make the cleaning tool contact the filter screen 31, and then rotate the operating rod 41 in sequence. The rotating operating rod 41 drives the filter screen 31 to rotate in the bearing 32, and then the cleaning tool can clean the impurities attached to the surface of the rotating filter screen 31.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impurity removal device for the production of oseltamivir intermediates, comprising a housing (1), a feeding assembly (2), a filtering assembly (3), and a driving assembly (4), characterized in that: The outer casing (1) includes a housing (11), a sealing groove (13) is provided on one side of the housing (11), a sealing plate (14) is provided in the sealing groove (13), the feeding assembly (2) includes a water pump (21), the water inlet end of the water pump (21) is connected to the liquid inlet pipe (22), the water outlet end of the water pump (21) is connected to the conduit (23), the bottom end of the conduit (23) is connected to several spray pipes (24), the filtering assembly (3) includes a filter screen (31), a bearing (32) is clamped on the outside of the filter screen (31), the bearing (32) is connected inside the housing (11), and the driving assembly (4) includes several operating rods (41), the several operating rods (41) are connected to the filter screen (31).

2. The impurity removal device for the production of oseltamivir intermediates according to claim 1, characterized in that: The bottom of the housing (11) is provided with a discharge port (12).

3. The impurity removal device for the production of oseltamivir intermediates according to claim 1, characterized in that: The water pump (21) is connected to the upper surface of the housing (11).

4. The impurity removal device for the production of oseltamivir intermediates according to claim 1, characterized in that: The conduit (23) is connected inside the housing (11).

5. The impurity removal device for the production of oseltamivir intermediates according to claim 1, characterized in that: The conduit (23) is connected to several spray pipes (24).

6. The impurity removal device for the production of oseltamivir intermediates according to claim 1, characterized in that: The filter screen (31) is semi-circular in shape, and several operating rods (41) are arranged in a circular array.

Images