A detachable and washable acetylaminophenol purification filter device

Abstract

The utility model provides a detachable and washable acetaminophen purification filter device relates to the technical field of purification equipment of pharmaceutical chemical industry, including support and box, the front hinged joint of box has the box door, the upper surface perpendicular fixed penetration of box has the feed pipe, the inboard fixed mounting of box has the shunt pipe, the lower surface fixed mounting of shunt pipe has the shower head. The utility model discloses through setting up and down distribution's two groups of filter screen in the box, and filter screen is slidably connected in the slot of horizontal plate through the plug -in block, and the limiting rod is inserted into the limiting hole in the side of plug -in block, realizes the quick installation and disassembly of filter screen, when needing to clean, only need to pull the pull plate and drive the limiting rod to separate from the limiting hole, can along the slot of filter screen draw out, and then it is convenient to clean or replace alone to filter screen, the whole dismounting process does not need to help the tool, and the operation is simple, effectively solved the problem that traditional filter device disassembly is complicated, improved production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical and chemical purification equipment technology, and in particular to a detachable and washable acetaminophen purification and filtration device. Background Technology

[0002] Pharmaceutical and chemical purification equipment is a key piece of equipment in the pharmaceutical and chemical industry used to remove impurities from raw materials or intermediates and improve product purity. It directly affects the quality, safety, and production efficiency of drugs and is widely used in the production processes of various drugs such as acetaminophen, antibiotics, and vitamins. In the production process of acetaminophen, purification and filtration is one of the core steps. High-precision filtration is required to remove solid impurities and unreacted raw materials from the raw materials to ensure that the final product meets pharmaceutical-grade purity standards and avoid impurities affecting the efficacy of the drug or causing safety risks.

[0003] In existing technologies, the purification and filtration of acetaminophen mostly uses traditional fixed filtration devices. These devices have obvious drawbacks. First, the filter screen is mostly fixed inside the equipment by bolts. When the filter screen has absorbed too much impurities and needs to be cleaned or replaced, multiple fixed parts need to be disassembled with tools such as wrenches. The operation is cumbersome and time-consuming, resulting in long downtime for equipment maintenance and seriously affecting production efficiency. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to solve the problem of cumbersome disassembly and assembly of filter screens in existing acetaminophen purification and filtration devices, and to propose a washable acetaminophen purification and filtration device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a detachable and washable acetaminophen purification and filtration device, comprising a support and a housing, wherein a door is hinged to the front of the housing, an inlet pipe is vertically fixed through the upper surface of the housing, a diversion pipe is fixedly installed inside the housing, a nozzle is fixedly installed on the lower surface of the diversion pipe, an outlet pipe is fixedly installed on the lower surface of the housing, a valve is fixedly installed on the outer surface of the outlet pipe, mounting sleeves are symmetrically fixedly installed inside the housing, a connecting rod is slidably connected inside the mounting sleeve, a horizontal plate is fixedly installed at one end of the connecting rod, a filter screen is provided on the side of the horizontal plate, an insert block is fixedly connected to the side of the filter screen, a slot is opened on the side of the horizontal plate, a fixing plate is fixedly installed on the upper surface of the horizontal plate, a limit rod is slidably connected inside the fixing plate, a limit plate is fixedly installed on the outer surface of the limit rod, a tension spring is sleeved on the outer surface of the limit rod, a pull plate is fixedly connected to one end of the limit rod, and a limit hole is opened on the side of the insert block.

[0006] Preferably, the feed pipe is internally connected to the diversion pipe, the diversion pipe is internally connected to the nozzle, and the nozzle is uniformly distributed along the length of the diversion pipe.

[0007] Preferably, the insert block and the slot are slidably connected, and the number of filters is two sets, with the filters distributed vertically.

[0008] Preferably, the limiting rod is slidably connected to the limiting hole, and the limiting plate is slidably connected to the fixing plate.

[0009] Preferably, one end of the tension spring is fixedly connected to the side of the limiting plate, and the other end of the tension spring is fixedly connected to the inner side of the fixing plate.

[0010] Preferably, a limit block is slidably connected inside the mounting sleeve, and a tension spring is fixedly connected to the inner side of the mounting sleeve.

[0011] Preferably, the upper surface of the limiting block is fixedly connected to one end of the connecting rod, and one end of the tension spring is fixedly connected to the lower surface of the limiting block.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, two sets of filter screens are arranged vertically inside the housing, and the filter screens are slidably connected to the slots of the horizontal plate via insert blocks. With the help of a limiting rod inserted into the limiting hole on the side of the insert block, the filter screens can be quickly installed and removed. When cleaning is required, simply pull the pull plate to move the limiting rod away from the limiting hole, and the filter screen can be pulled out along the slot, which facilitates the individual cleaning or replacement of the filter screen. The entire disassembly and assembly process does not require tools, and the operation is simple. It effectively solves the problem of cumbersome disassembly of traditional filter devices and improves production efficiency.

[0013] 2. In this utility model, the connecting rod is slidably connected to the mounting sleeve, and a limiting block and tension spring are used to provide buffer support, so that the filter screen remains stable during the filtration process, reducing vibration and impact and extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 This utility model provides a three-dimensional structural diagram of a detachable and washable acetaminophen purification and filtration device. Figure 2 A full sectional view of a detachable and washable acetaminophen purification and filtration device is provided for this utility model. Figure 3 This utility model provides a partial structural diagram of the horizontal plate and filter screen of a detachable and washable acetaminophen purification and filtration device. Figure 4This utility model provides a sectional view of the housing of a detachable and washable acetaminophen purification and filtration device. Figure 5 This invention proposes a detachable and washable acetaminophen purification and filtration device. Figure 4 Enlarged view of point A in the middle.

[0015] Legend: 1. Bracket; 2. Box body; 3. Box door; 4. Feed pipe; 5. Diverter pipe; 6. Nozzle; 7. Discharge pipe; 8. Valve; 9. Mounting sleeve; 10. Connecting rod; 11. Horizontal plate; 12. Filter screen; 13. Insert block; 14. Slot; 15. Fixing plate; 16. Limiting rod; 17. Limiting disc; 18. Tension spring; 19. Pull plate; 20. Limiting hole; 21. Limiting block; 22. Tension spring. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0018] Example 1: As Figures 1-5As shown, this utility model provides a technical solution: a detachable and washable acetaminophen purification and filtration device, including a support 1 and a housing 2. A door 3 is hinged to the front of the housing 2. A feed pipe 4 is vertically fixed through the upper surface of the housing 2. A diversion pipe 5 is fixedly installed inside the housing 2. A nozzle 6 is fixedly installed on the lower surface of the diversion pipe 5. A discharge pipe 7 is fixedly installed on the lower surface of the housing 2. A valve 8 is fixedly installed on the outer surface of the discharge pipe 7. Installation sleeves 9 are symmetrically fixedly installed inside the housing 2. A connecting rod 10 is slidably connected inside the installation sleeve 9. A horizontal plate 11 is fixedly installed at one end of the connecting rod 10. A filter screen 12 is provided on the side of the horizontal plate 11. An insert block 13 is fixedly connected to the side of the filter screen 12. A slot 14 is opened on the side of the horizontal plate 11. A fixing plate is fixedly installed on the upper surface of the horizontal plate 11. 15. A limiting rod 16 is slidably connected inside the fixed plate 15. A limiting plate 17 is fixedly installed on the outer surface of the limiting rod 16. A tension spring 18 is sleeved on the outer surface of the limiting rod 16. A pull plate 19 is fixedly connected to one end of the limiting rod 16. A limiting hole 20 is opened on the side of the insert block 13. The feed pipe 4 is connected to the inside of the diversion pipe 5. The diversion pipe 5 is connected to the inside of the nozzle 6. The nozzles 6 are evenly distributed along the length of the diversion pipe 5. The insert block 13 is slidably connected to the slot 14. There are two sets of filter screens 12, which are distributed vertically. The limiting rod 16 is slidably connected to the limiting hole 20. The limiting plate 17 is slidably connected to the fixed plate 15. One end of the tension spring 18 is fixedly connected to the side of the limiting plate 17. The other end of the tension spring 18 is fixedly connected to the inside of the fixed plate 15.

[0019] In this embodiment, when performing acetaminophen purification and filtration, the chamber door 3 is first opened to check whether the two sets of vertically distributed filter screens 12 are installed in place. The inserts 13 of the filter screens 12 must be fully inserted into the slots 14 of the horizontal plate 11, and the limiting rod 16 is engaged in the limiting hole 20 of the inserts 13 under the action of the tension spring 18. Through the sliding cooperation between the limiting plate 17 and the fixing plate 15, the limiting rod 16 is kept in a stable position to prevent the filter screens 12 from loosening. Then the chamber door 3 is closed, and the acetaminophen material to be purified is injected from the feed pipe 4. The material flows into the diversion pipe 5 along the feed pipe 4. Since the feed pipe 4 and the diversion pipe 5 are internally connected, and the nozzles 6 on the lower surface of the diversion pipe 5 are evenly distributed along its length, the diversion pipe 5 can evenly distribute the material to each nozzle 6. The material is sprayed vertically downwards through the nozzles 6 onto the first set of filter screens 12 above, where the first set of filter screens 12 performs preliminary filtration. The material is initially filtered to remove larger particles of impurities. After initial filtration, the material continues to flow downwards and enters the second set of filter screens 12 for secondary fine filtration, further removing tiny impurities. The dual filtration structure significantly improves the purification accuracy of acetaminophen. After filtration, the pure material gathers at the bottom of the box 2. The operator can discharge the pure material from the discharge pipe 7 by opening the valve 8 on the outer surface of the discharge pipe 7. When it is necessary to clean or replace the filter screen 12, simply open the box door 3, pull the pull plate 19 to drive the limit rod 16 to slide away from the insertion block 13. Simultaneously, the limit plate 17 slides inside the fixed plate 15 and stretches the tension spring 18, causing the limit rod 16 to disengage from the limit hole 20 of the insertion block 13. At this time, the insertion block 13 can be pulled out from the slot 14, and the filter screen 12 can be removed for cleaning or replacement. The whole process does not require tools, is convenient to operate, and effectively reduces equipment downtime for maintenance.

[0020] Example 2: Figures 1-5 As shown, the mounting sleeve 9 has a sliding connection of a limiting block 21 inside, and a tension spring 22 is fixedly connected to the inner side of the mounting sleeve 9. The upper surface of the limiting block 21 is fixedly connected to one end of the connecting rod 10, and one end of the tension spring 22 is fixedly connected to the lower surface of the limiting block 21.

[0021] In this embodiment, when the device performs filtration, the two sets of vertically distributed filter screens 12 and the flowing material exert downward pressure on the horizontal plate 11. After the horizontal plate 11 is subjected to force, the pressure is transmitted to the limiting block 21 through the connecting rod 10. The limiting block 21 slides downward inside the mounting sleeve 9 and compresses the tension spring 22. At this time, the tension spring 22 generates an upward elastic reaction force due to compression. This reaction force is transmitted to the horizontal plate 11 through the limiting block 21 and the connecting rod 10, which balances the downward pressure on the horizontal plate 11 and effectively buffers the impact of the material and filter screens 12 on the horizontal plate 11.

[0022] The working principle of this embodiment is as follows: During use, open the front door 3 of the housing 2, and slide the two sets of filter screens 12 horizontally into the slots 14 on the horizontal plate 11 through the side inserts 13 until the inserts 13 are fully embedded in the slots 14. During insertion, the limiting holes 20 on the side of the inserts 13 gradually approach the position of the fixing plate 15. At this time, the tension spring 18 is compressed, and the limiting plate 17 slides within the fixing plate 15. When the inserts 13 are in place, the limiting holes 20 and the limiting rod 16 align. When the tension spring 18 releases its elastic force, it pushes the limiting plate 17 and the limiting rod 16 towards the insertion block 13, so that one end of the limiting rod 16 is inserted into the limiting hole 20, thereby locking the filter screen 12. Then, the box door 3 is closed, and the material is fed through the feed pipe 4 and transported through the internally connected diversion pipe 5 to multiple nozzles 6 evenly distributed on its lower surface. The nozzles 6 evenly spray the liquid onto the upper filter screen 12, and the liquid passes through the upper filter screen 12 and the lower filter screen 12 in sequence under the action of gravity. In the first-stage filtration, larger particles are trapped on the surface of the upper filter screen 12, while smaller particles are intercepted by the lower filter screen 12. The filtrate then passes through both filter screens 12 and falls to the bottom of the housing 2. During filtration, the connecting rod 10 causes the horizontal plate 11 and the filter screen 12 to slide slightly up and down within the mounting sleeve 9. The limiting block 21 moves with the connecting rod 10 within the mounting sleeve 9, and the tension spring 22 is compressed or rebounded, which buffers vibration and stabilizes the filter screen 12. The filtered liquid is discharged through the discharge pipe 7 on the lower surface of the housing 2. The valve 8 on the outer surface of the discharge pipe 7 is used to control the start and stop of the liquid flow. When it is necessary to clean or replace the filter screen 12, the pull plate 19 is manually pulled outward, causing the limiting rod 16 to overcome the elastic force of the tension spring 18 and exit from the limiting hole 20, releasing the lock on the insert block 13. At this time, the insert block 13 can be pulled out from the slot 14, and the filter screen 12 can be removed for cleaning or replacement. The whole process does not require tools, is easy to operate, and effectively reduces equipment downtime for maintenance.

[0023] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A detachable and washable acetaminophen purification and filtration device, comprising a support (1) and a housing (2), characterized in that: The front hinge of the box (2) is connected to a door (3). A feed pipe (4) is vertically fixed through the upper surface of the box (2). A diversion pipe (5) is fixedly installed on the inner side of the box (2). A nozzle (6) is fixedly installed on the lower surface of the diversion pipe (5). A discharge pipe (7) is fixedly installed on the lower surface of the box (2). A valve (8) is fixedly installed on the outer surface of the discharge pipe (7). An installation sleeve (9) is symmetrically fixedly installed on the inner side of the box (2). A connecting rod (10) is slidably connected inside the installation sleeve (9). A horizontal plate (11) is fixedly installed at one end of the connecting rod (10). A filter screen (12) is provided on the side of the horizontal plate (11). A plug (13) is fixedly connected to the side of the filter screen (12). A slot (14) is opened on the side of the horizontal plate (11). A fixing plate (15) is fixedly installed on the upper surface of the horizontal plate (11). A limit rod (16) is slidably connected inside the fixing plate (15). A limit plate (17) is fixedly installed on the outer surface of the limit rod (16). A tension spring (18) is sleeved on the outer surface of the limit rod (16). A pull plate (19) is fixedly connected to one end of the limit rod (16). A limit hole (20) is opened on the side of the plug (13).

2. The detachable and washable acetaminophen purification and filtration device according to claim 1, characterized in that: The feed pipe (4) is connected to the inside of the diversion pipe (5), and the diversion pipe (5) is connected to the inside of the nozzle (6). The nozzles (6) are evenly distributed along the length of the diversion pipe (5).

3. The detachable and washable acetaminophen purification and filtration device according to claim 1, characterized in that: The insert (13) is slidably connected to the slot (14), and there are two sets of filters (12) which are distributed vertically.

4. The detachable and washable acetaminophen purification and filtration device according to claim 1, characterized in that: The limiting rod (16) is slidably connected to the limiting hole (20), and the limiting plate (17) is slidably connected to the fixing plate (15).

5. The detachable and washable acetaminophen purification and filtration device according to claim 1, characterized in that: One end of the tension spring (18) is fixedly connected to the side of the limiting plate (17), and the other end of the tension spring (18) is fixedly connected to the inner side of the fixing plate (15).

6. The detachable and washable acetaminophen purification and filtration device according to claim 1, characterized in that: The mounting sleeve (9) has a sliding connection to a limit block (21) inside, and a tension spring (22) is fixedly connected to the inner side of the mounting sleeve (9).

7. The detachable and washable acetaminophen purification and filtration device according to claim 6, characterized in that: The upper surface of the limiting block (21) is fixedly connected to one end of the connecting rod (10), and one end of the tension spring (22) is fixedly connected to the lower surface of the limiting block (21).

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