Filtering device for medical intermediate production

Abstract

The utility model relates to a filter device for medical intermediate production, which comprises a first vertical plate and a second vertical plate, a barrel is rotatably mounted between the first vertical plate and the second vertical plate through a rotating shaft, and a filter screen is mounted in the barrel; a servo motor is mounted on the outer surface of the first vertical plate; the end part of an output shaft of the servo motor is connected with one rotating shaft; a barrel cover is mounted on the outer surface of the second vertical plate through a lifting mechanism, a hollow pipe is rotatably mounted in the barrel cover in a penetrating manner, a plurality of flushing pipes are connected to the outer surface of the hollow pipe, and a plurality of flushing nozzles are mounted on the outer surfaces of the flushing pipes; the top of the barrel cover is provided with a feeding hopper and a rotating mechanism. The barrel body is driven by the servo motor to rotate by 180 degrees, so that filtered matters are positioned below the filter screen, then the filter screen is backwashed by the washing spray head, and the washed filtered matters are directly discharged from the lower part, so that the aim of quickly cleaning the filter screen can be fulfilled under the condition that the filter screen is not disassembled.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical intermediate production technology, specifically a filtration device for pharmaceutical intermediate production. Background Technology

[0002] Pharmaceutical intermediates are intermediate chemicals used in the synthesis of drugs. They are chemical raw materials or products obtained in the process of drug synthesis. They are intermediate products in the synthesis process of active pharmaceutical ingredients (APIs) and are generally not used directly for clinical treatment. There are many types of pharmaceutical intermediates, covering various organic compounds, such as nitrogen-containing heterocycles and aromatic compounds. Their preparation requires specific chemical synthesis technologies and processes, providing a key foundation for the production of APIs and playing an important role in the pharmaceutical industry chain.

[0003] In the production of pharmaceutical intermediates, filtration is required. Existing filtration devices mainly achieve filtration through their internal filters. After each filtration, the filter surface needs to be cleaned. However, since the filter is located inside the device, it needs to be disassembled, cleaned, and then reinstalled, making the overall operation cumbersome and significantly reducing the cleaning efficiency of the filter. Utility Model Content

[0004] The purpose of this invention is to provide a filtration device for the production of pharmaceutical intermediates, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A filtration device for producing pharmaceutical intermediates includes a first vertical plate and a second vertical plate. A barrel is rotatably mounted between the first and second vertical plates via a rotating shaft, and a filter screen is installed inside the barrel. A servo motor is mounted on the outer surface of the first vertical plate, and the end of the servo motor's output shaft is connected to one of the rotating shafts. A barrel lid is mounted on the outer surface of the second vertical plate via a lifting mechanism. A hollow tube is rotatably mounted through the inside of the barrel lid, and multiple rinsing pipes are connected to the outer surface of the hollow tube. Multiple rinsing nozzles are mounted on the outer surface of the rinsing pipes. A feed hopper is mounted on the top of the barrel lid, and a rotating mechanism is provided on the top of the barrel lid, which drives the hollow tube to rotate.

[0007] As can be seen, after the lifting mechanism raises the lid, the servo motor drives the barrel to rotate 180 degrees, placing the filter material below the filter screen. Then, the rinsing pipe is lowered into the barrel, and the rinsing nozzle is used to backwash the filter screen. The rinsed filter material is discharged directly from below. Furthermore, the rotating mechanism drives the hollow tube to rotate, allowing the rinsing nozzle to cover the entire filter screen and avoid dead corners. Therefore, it is possible to achieve the purpose of quick cleaning without removing the filter screen.

[0008] Furthermore, the lifting mechanism includes a mounting groove formed on the surface of the second upright plate, a threaded rod rotatably mounted inside the mounting groove, a first drive motor mounted on the top of the second upright plate, and the end of the output shaft of the first drive motor connected to the threaded rod. A drive plate is mounted on the outer surface of the threaded rod, and the drive plate is slidably connected to the inner wall of the mounting groove, and the end of the drive plate is connected to the bucket lid.

[0009] Furthermore, the rotating mechanism includes a second drive motor mounted on the top of the bucket lid. A drive gear is mounted on the end of the output shaft of the second drive motor, and a driven gear is mounted on the outer surface of the hollow tube, with the driven gear meshing with the drive gear. A water inlet pipe is connected to the top of the hollow tube via a rotary joint.

[0010] Furthermore, stirring blades are installed on the outer surface of the hollow tube.

[0011] Furthermore, an annular tube is installed on the top wall of the bucket lid, and multiple air outlets are opened on the lower surface of the annular tube. An air inlet pipe is connected to the outer surface of the annular tube, and the end of the air inlet pipe extends through to the top of the bucket lid and is equipped with a hot air mechanism.

[0012] Furthermore, the hot air mechanism includes a pipe body installed at the end of the air inlet pipe, a fan installed at the top inside the pipe body, and a heating wire installed at the bottom inside the pipe body.

[0013] Furthermore, the end of the tube is threadedly connected to an end cap, and a dustproof mesh is installed inside the end cap.

[0014] Furthermore, the bottoms of both the first and second uprights are fitted with a base.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0016] 1. This utility model uses a lifting mechanism to raise the lid, and then a servo motor drives the barrel to rotate 180 degrees, so that the filter material is located below the filter screen. Then, the rinsing pipe is lowered into the barrel, and the rinsing nozzle is used to backwash the filter screen. The rinsed filter material is discharged directly from below. Furthermore, the rotating mechanism drives the hollow tube to rotate, which allows the rinsing nozzle to cover the entire filter screen and avoid dead corners. Therefore, it can achieve the purpose of quick cleaning without removing the filter screen.

[0017] 2. This utility model, through the setting of a hot air mechanism and annular pipe, can dry the filter screen after rinsing, so as to keep the inside of the barrel dry, reduce the growth of microorganisms, and ensure that the device meets hygiene standards when used again. Attached Figure Description

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

[0019] Figure 2 This is a schematic cross-sectional view of the barrel body in this utility model;

[0020] Figure 3 This is one of the structural schematic diagrams of the barrel lid in this utility model;

[0021] Figure 4 This is the second schematic diagram of the structure of the bucket lid in this utility model;

[0022] Figure 5 This is a schematic diagram of the hot air mechanism in this utility model.

[0023] In the diagram: 100, First upright plate; 101, Second upright plate; 102, Barrel body; 103, Servo motor; 104, Barrel lid; 105, Feed hopper; 106, Filter screen; 107, Hollow tube; 108, Flushing pipe; 109, Flushing nozzle; 200, Lifting mechanism; 201, Mounting slot; 202, First drive motor; 203, Threaded rod; 204, Drive plate; 300, Rotating mechanism; 301, Second drive motor; 302, Drive gear; 303, Driven gear; 304, Rotary joint; 305, Water inlet pipe; 400, Stirring blade; 500, Annular pipe; 501, Air outlet; 502, Air inlet pipe; 600, Hot air mechanism; 601, Pipe body; 602, Fan; 603, Heating wire; 700, End cap; 701, Dustproof net; 800, Base. Detailed Implementation

[0024] 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.

[0025] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0026] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0027] Please see Figures 1-5 This utility model provides a filtration device for the production of pharmaceutical intermediates, comprising a first vertical plate 100 and a second vertical plate 101. A barrel 102 is rotatably mounted between the first and second vertical plates 100 and 101 via a rotating shaft, and a filter screen 106 is installed inside the barrel 102. A servo motor 103 is mounted on the outer surface of the first vertical plate 100, and the end of the output shaft of the servo motor 103 is connected to one of the rotating shafts. A barrel cover 104 is mounted on the outer surface of the second vertical plate 101 via a lifting mechanism 200. A hollow tube 107 is rotatably mounted through the inside of the barrel cover 104, and multiple rinsing pipes 108 are connected to the outer surface of the hollow tube 107. Multiple rinsing nozzles 109 are mounted on the outer surface of the rinsing pipes 108. A feed hopper 105 is mounted on the top of the barrel cover 104, and a rotating mechanism 300 is provided on the top of the barrel cover 104, which can drive the hollow tube 107 to rotate.

[0028] In use, the solution to be filtered is poured into the tank 102 from the feed hopper 105 and filtered using the filter screen 106. The filtered solution is discharged from the bottom, while the filtered material is trapped on the surface of the filter screen 106. When the filter screen 106 needs to be cleaned, the tank cover 104 is first raised by the lifting mechanism 200, so that the hollow tube 107 is pulled out from the inside of the tank 102. Then, the tank 102 is rotated 180 degrees by the servo motor 103, so that the filtered material is located below the filter screen 106. Then, the rinsing pipe 108 is lowered into the tank 102, and the filter screen 106 is backwashed using the rinsing nozzle 109. The rinsed filtered material is discharged directly from the bottom. The hollow tube 107 is driven to rotate by the rotating mechanism 300, so that the rinsing nozzle 109 can cover the entire filter screen 106, avoiding dead corners. Therefore, the purpose of cleaning the filter screen 106 can be achieved quickly without removing it.

[0029] Furthermore, in this embodiment, the lifting mechanism 200 includes a mounting groove 201 formed on the surface of the second upright plate 101. A threaded rod 203 is rotatably mounted inside the mounting groove 201. A first drive motor 202 is mounted on the top of the second upright plate 101, and the end of the output shaft of the first drive motor 202 is connected to the threaded rod 203. A drive plate 204 is mounted on the outer surface of the threaded rod 203, and the drive plate 204 is slidably connected to the inner wall of the mounting groove 201. The end of the drive plate 204 is connected to the bucket lid 104.

[0030] In the technical solution adopted in this embodiment, when the first drive motor 202 is started, it drives the threaded rod 203 to rotate. The drive plate 204 is limited by the inner wall of the mounting groove 201. Therefore, under the drive of the threaded connection, it can be raised and lowered along the length direction of the threaded rod 203, and drive the bucket lid 104 to be raised and lowered.

[0031] Furthermore, in this embodiment, the rotating mechanism 300 includes a second drive motor 301 mounted on the top of the bucket lid 104. A drive gear 302 is mounted on the end of the output shaft of the second drive motor 301, and a driven gear 303 is mounted on the outer surface of the hollow tube 107, and the driven gear 303 is meshed with the drive gear 302. The top of the hollow tube 107 is connected to a water inlet pipe 305 through a rotary joint 304.

[0032] In the technical solution adopted in this embodiment, when the second drive motor 301 is started, it drives the drive gear 302 to rotate. Since the drive gear 302 is meshed with the driven gear 303, it can drive the hollow tube 107 to rotate, changing the rinsing position of the rinsing nozzle 109. Through the setting of the rotary joint 304, the water inlet pipe 305 can supply water to the hollow tube 107 while it is rotating.

[0033] Furthermore, in this embodiment, a stirring blade 400 is installed on the outer surface of the hollow tube 107.

[0034] In the technical solution adopted in this embodiment, when the solution is filtered on the filter screen 106, the hollow tube 107 can be driven to rotate by the rotating mechanism 300, and the stirring blade 400 can be driven to stir the solution, thereby increasing the fluidity of the solution and avoiding the accumulation of filter material on the filter screen 106, which affects the flow of the solution and improves the filtration efficiency.

[0035] Furthermore, in this embodiment, an annular tube 500 is installed on the top wall of the bucket lid 104, and a plurality of air outlets 501 are opened on the lower surface of the annular tube 500. An air inlet pipe 502 is connected to the outer surface of the annular tube 500, and the end of the air inlet pipe 502 extends through to the top of the bucket lid 104 and is provided with a hot air mechanism 600.

[0036] In the technical solution adopted in this embodiment, the hot air mechanism 600 and the annular pipe 500 can be used to dry the filter screen 106 after rinsing, so that the inside of the barrel 102 is kept dry, reducing the growth of microorganisms and ensuring that the device meets hygiene standards when used next.

[0037] Furthermore, in this embodiment, the hot air mechanism 600 includes a pipe body 601 installed at the end of the air inlet pipe 502, a fan 602 installed on the upper part of the inside of the pipe body 601, and a heating wire 603 installed on the lower part of the inside of the pipe body 601.

[0038] In the technical solution adopted in this embodiment, when the fan 602 and the heating wire 603 are started, the air blown out by the fan 602 is heated by the heating wire 603 to form hot air. The hot air enters the annular pipe 500 through the air inlet pipe 502 and is evenly blown into the interior of the barrel 102 from the air outlet 501 to dry the interior of the barrel 102.

[0039] Furthermore, in this embodiment, the end of the tube body 601 is threadedly connected to an end cap 700, and a dustproof mesh 701 is provided inside the end cap 700.

[0040] In the technical solution adopted in this embodiment, the dustproof net 701 can filter dust in the air, thereby improving the purity of hot air and reducing dust contamination inside the barrel 102.

[0041] Furthermore, in this embodiment, the bottom of the first upright plate 100 and the second upright plate 101 are both equipped with a base 800.

[0042] In the technical solution adopted in this embodiment, the base 800 makes the first upright plate 100 and the second upright plate 101 form a whole, which is more stable.

[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A filtration device for the production of pharmaceutical intermediates, comprising a first vertical plate and a second vertical plate, characterized in that: A barrel is rotatably mounted between the first and second upright plates via a pivot, and a filter screen is installed inside the barrel. A servo motor is mounted on the outer surface of the first upright plate, and the end of the output shaft of the servo motor is connected to one of the pivots. A barrel lid is mounted on the outer surface of the second upright plate via a lifting mechanism. A hollow tube is rotatably mounted through the inside of the barrel lid, and multiple rinsing pipes are connected to the outer surface of the hollow tube. Multiple rinsing nozzles are mounted on the outer surface of the rinsing pipes. A feed hopper is mounted on the top of the barrel lid, and a rotating mechanism is provided on the top of the barrel lid, which can drive the hollow tube to rotate.

2. The filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The lifting mechanism includes a mounting groove formed on the surface of the second vertical plate, a threaded rod rotatably mounted inside the mounting groove, a first drive motor mounted on the top of the second vertical plate, and the end of the output shaft of the first drive motor connected to the threaded rod. A drive plate is mounted on the outer surface of the threaded rod, and the drive plate is slidably connected to the inner wall of the mounting groove, and the end of the drive plate is connected to the bucket lid.

3. The filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The rotating mechanism includes a second drive motor mounted on the top of the bucket lid, a drive gear mounted on the end of the output shaft of the second drive motor, a driven gear mounted on the outer surface of the hollow tube, and the driven gear meshing with the drive gear; the top of the hollow tube is connected to a water inlet pipe through a rotary joint.

4. A filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The outer surface of the hollow tube is fitted with stirring blades.

5. A filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The top wall of the bucket lid is equipped with an annular tube, the lower surface of which has multiple air outlets, and the outer surface of which is connected to an air inlet pipe. The end of the air inlet pipe extends through to the top of the bucket lid and is equipped with a hot air mechanism.

6. A filtration device for producing pharmaceutical intermediates according to claim 5, characterized in that: The hot air mechanism includes a pipe body installed at the end of the air inlet pipe, a fan installed above the inside of the pipe body, and a heating wire installed below the inside of the pipe body.

7. A filtration device for producing pharmaceutical intermediates according to claim 6, characterized in that: The end of the tube is threadedly connected to an end cap, and a dustproof mesh is installed inside the end cap.

8. A filtration device for producing pharmaceutical intermediates according to claim 1, characterized in that: The bottom of the first upright plate and the second upright plate are both equipped with a base.

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