Suction filter for acetaminophen production

Abstract

The utility model discloses a suction filter for acetaminophen production, which relates to the field of chemical equipment and comprises a suction filtration tank, a suction filtration pipe and a liquid outlet are arranged at the lower end of the suction filtration tank, a material receiving cylinder is arranged on the outer side of the upper end of the suction filtration tank, a discharging device is rotatably connected in the material receiving cylinder, and a radial driving device is arranged on the upper end face of the material receiving cylinder. A cleaning plate device is arranged on the driving device, a liquid collecting tank is fixedly connected in the suction filtration tank and comprises a liquid collecting cylinder, a liquid guide conical cylinder is fixedly connected to the lower end of the liquid collecting cylinder, a filtering device is arranged in the liquid collecting cylinder and comprises a filtering circular plate device and an air cylinder device, and the filtering circular plate device is in sliding sealing connection with the inner wall of the liquid collecting cylinder; the air cylinder device is fixedly installed on the liquid guiding conical barrel, the filtering circular plate device is connected with the air cylinder device through a telescopic rod, the air cylinder device drives the filtering circular plate device to move up and down on the inner wall of the liquid collecting tank through the telescopic rod, the device can automatically clean, discharge and collect filtered and separated medicine residue waste, and the working efficiency of the device is improved.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment, and specifically relates to a filter for the production of acetaminophen. Background Technology

[0002] Acetaminophen is a widely used antipyretic and analgesic drug, belonging to the nonsteroidal anti-inflammatory drug (NSAID) class, primarily used to treat pain and fever. During the production of acetaminophen, a vacuum filter is used to separate the raw solution into solid and liquid components.

[0003] Chinese Patent Application No. CN202021699622.5 discloses a vacuum filter for the production of acetaminophen, comprising a shell, a filter bottle, a filter, a motor, a vacuum pump, and a storage tank. The filter bottle and the storage tank are connected by a filter. The upper end of the filter is engaged with the filter bottle via a pressure plate, and the lower end of the filter is threadedly fixed in a through hole in a partition. The motor is connected to the vacuum pump, the bottom of which is connected to the storage tank via an air inlet. An air outlet is located on the upper surface of the vacuum pump, and a drain outlet connected to the storage tank is located on the side of the shell. This device has a compact structure, a neat appearance, and is easy to use. However, the above device is not convenient for automatically cleaning and collecting the filtered residue, requiring additional discharge operations, which are time-consuming and labor-intensive, and cannot meet the usage requirements. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a filter for the production of acetaminophen, which can automatically clean and discharge the filtered residue and waste, thereby improving the efficiency of the equipment.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A vacuum filter for the production of acetaminophen includes a vacuum filter tank, a vacuum filter pipe and a drain outlet at the lower end of the vacuum filter tank, a concentric receiving cylinder on the outer side of the upper end of the vacuum filter tank, a discharge device rotatably connected inside the receiving cylinder, a radial drive device on the upper end face of the receiving cylinder, a cleaning plate device on the drive device, a liquid collection tank fixedly connected inside the vacuum filter tank, the liquid collection tank including a liquid collection cylinder, a liquid guiding cone fixedly connected to the lower end of the liquid collection cylinder, a filtration device inside the liquid collection cylinder, the filtration device including a filter disc device and a cylinder device, the filter disc device being slidably and sealingly connected to the inner wall of the liquid collection cylinder, the cylinder device being fixedly mounted on the liquid guiding cone, the filter disc device being connected to the cylinder device via a telescopic rod, and the cylinder device driving the filter disc device to move up and down on the inner wall of the liquid collection tank via the telescopic rod.

[0007] As a further feature of the above scheme, the bottom plate of the receiving cylinder is provided with a waste discharge port, and a first motor is fixedly connected to the outer wall of the receiving cylinder. The first motor is provided with a drive gear. The drive device includes a mounting bracket, which is symmetrically fixedly connected to the upper end face of the receiving cylinder. A screw is rotatably connected between the two mounting brackets. A second motor is connected to one end of the screw. Parallel guide rods are fixedly connected to both sides of the screw. The screw radially penetrates the receiving cylinder.

[0008] As a further provision of the above scheme, the discharge device includes an outer rotating ring and an inner rotating ring. The outer rotating ring and the inner rotating ring are coaxial with the center line of the filtration tank and rotatably connected to the receiving cylinder. A discharge scraper is fixedly connected between the outer rotating ring and the inner rotating ring. A toothed ring is provided on the outer wall of the outer rotating ring. The toothed ring is meshed with a drive gear. A first motor drives the drive gear to rotate. The drive gear drives the discharge device to rotate through the toothed ring, which drives the discharge scraper to discharge the dregs and waste in the receiving cylinder from the waste discharge port.

[0009] As a further feature of the above solution, the cleaning plate device includes a support platform with screw holes on both sides of the screw holes. The screw holes are connected to a screw rod, and the guide holes are slidably connected to a guide rod. The lower end of the support platform is provided with a mounting platform on which a cleaning plate is fixedly connected. A second motor drives the screw rod to rotate, and the screw rod drives the support platform to reciprocate on the guide rod.

[0010] As a further feature of the above scheme, the outer conical surface of the liquid guiding cone is provided with a downward-facing mounting cover, which is used to fix and install the cylinder device, and the lower end of the liquid guiding cone has a liquid outlet.

[0011] As a further feature of the above scheme, a liquid collection chamber is formed between the lower end of the liquid guiding cone and the bottom plate of the filtration tank. The filtration tube can generate negative pressure in the liquid collection chamber, and generate a pressure difference on the upper and lower end faces of the filter disc device to complete the filtration.

[0012] This utility model has the following beneficial effects:

[0013] The medicinal liquid is placed into the suction filtration tank. A negative pressure is formed in the collection chamber between the lower end of the guide cone and the bottom plate of the suction filtration tank through the suction pipe. A pressure difference is generated on the upper and lower surfaces of the filter disc device. The medicinal residue and waste are trapped above the filter disc device, while the liquid flows into the collection chamber from the outlet. After suction filtration is completed, the cylinder device moves the filter disc device upward to the upper end of the collection tank via the telescopic rod. The drive device drives the cleaning plate device to move back and forth, discharging the medicinal residue and waste into the receiving cylinder. The first motor drives the drive gear to rotate, and the drive gear drives the discharge device to rotate through the gear ring. The discharge scraper drives the medicinal residue and waste in the receiving cylinder to be discharged from the waste discharge outlet. The filtered and separated medicinal residue and waste are automatically cleaned, discharged, and collected, greatly improving the working efficiency of the equipment. Attached Figure Description

[0014] Figure 1 This is a cross-sectional schematic diagram of the present invention;

[0015] Figure 2 This is an assembly drawing of the drive device of this utility model;

[0016] Figure 3 This is a schematic diagram of the filtration device of this utility model;

[0017] Figure 4 This is a schematic diagram of the cleaning plate device of this utility model;

[0018] Figure 5 This is a schematic diagram of the discharge device of this utility model.

[0019] 1. Filter tank; 2. Receiving cylinder; 3. Drive unit; 4. Cleaning plate device; 5. Liquid collection tank; 6. Filtration device; 7. Filter tube; 8. Drain outlet; 9. Discharge device; 201. Waste discharge outlet; 202. First motor; 203. Drive gear; 301. Mounting bracket; 302. Screw; 303. Guide rod; 304. Second motor; 401. Bearing platform; 4011. Screw hole; 4012. Guide hole; 402. Mounting platform; 403. Cleaning plate; 501. Liquid collection cylinder; 502. Liquid guiding cone; 503. Mounting cover; 504. Liquid outlet; 601. Filter disc device; 602. Cylinder device; 603. Telescopic rod; 901. Outer rotating ring; 902. Inner rotating ring; 903. Discharge scraper; 904. Gear ring. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments.

[0022] like Figure 1 , Figure 3As shown, a vacuum filter for the production of acetaminophen includes a vacuum tank 1 with a vacuum pipe 7 and a drain port 8 at its lower end. A concentric receiving cylinder 2 is located on the outer side of the upper end of the vacuum tank 1. A discharge device 9 is rotatably connected inside the receiving cylinder 2. A radial driving device 3 is located on the upper surface of the receiving cylinder 2, and a cleaning plate device 4 is mounted on the driving device 3. A collection tank 5 is fixedly connected inside the vacuum tank 1. The collection tank 5 includes a collection cylinder 501, and a guide cone 502 is fixedly connected to the lower end of the collection cylinder 501. A downward-facing mounting cover 503 is provided on the outer conical surface of the guide cone 502. 503 is used to fix and install the cylinder device 602. The liquid guide cone 502 has a liquid outlet 504 at its lower end. The liquid collection cylinder 501 is equipped with a filter device 6. The filter device 6 includes a filter disc device 601 and a cylinder device 602. The filter disc device 601 is slidably and sealingly connected to the inner wall of the liquid collection cylinder 501. The cylinder device 602 is fixedly installed on the liquid guide cone 502. The filter disc device 601 is connected to the cylinder device 602 through a telescopic rod 603. The cylinder device 602 drives the filter disc device 601 to move up and down on the inner wall of the liquid collection tank 5 through the telescopic rod 603.

[0023] like Figure 2 As shown, the bottom plate of the receiving cylinder 2 is provided with a waste discharge port 201. A first motor 202 is fixedly connected to the outer wall of the receiving cylinder 2. The first motor 202 is provided with a drive gear 203. The drive device 3 includes a mounting bracket 301. The mounting brackets 301 are symmetrically fixedly connected to the upper end face of the receiving cylinder 2. A screw 302 is rotatably connected between the two mounting brackets 301. A second motor 304 is connected to one end of the screw 302. Parallel guide rods 303 are fixedly connected to both sides of the screw 302. The screw 302 radially penetrates the receiving cylinder 2.

[0024] like Figure 5 As shown, the discharge device 9 includes an outer rotating ring 901 and an inner rotating ring 902. The outer rotating ring 901 and the inner rotating ring 902 are coaxial with the center line of the suction tank 1 and are rotatably connected to the receiving cylinder 2. A discharge scraper 903 is fixedly connected between the outer rotating ring 901 and the inner rotating ring 902. A toothed ring 904 is provided on the outer wall of the outer rotating ring 901. The toothed ring 904 is meshed with the drive gear 203. The first motor 202 drives the drive gear 203 to rotate. The drive gear 203 drives the discharge device 9 to rotate through the toothed ring 904, which drives the discharge scraper 903 to discharge the dregs and waste in the receiving cylinder 2 from the waste discharge outlet 201.

[0025] like Figure 4As shown, the cleaning plate device 4 includes a support platform 401, on which a screw hole 4011 is opened, and guide holes 4012 are opened on both sides of the screw hole 4011. The screw hole 4011 is connected to the screw rod 302 for transmission, and the guide holes 4012 are slidably connected to the guide rod 303. A mounting platform 402 is provided at the lower end of the support platform 401, and a cleaning plate 403 is fixedly connected to the mounting platform 402. The second motor 304 drives the screw rod 302 to rotate, and the screw rod 302 drives the support platform 401 to reciprocate on the guide rod 303.

[0026] The working process of this utility model is as follows: The medicine liquid is put into the suction filter tank 1. A negative pressure is formed in the collection chamber between the lower end of the liquid guiding cone 502 and the bottom plate of the suction filter tank 1 through the suction filter tube 7. A pressure difference is generated on the upper and lower end faces of the filter disc device 601. The medicine residue and waste are trapped above the filter disc device 601, and the liquid flows into the collection chamber from the liquid outlet 504. After the suction filtration is completed, the cylinder device 602 drives the filter disc device 601 to move upward to the upper end of the collection tank 5 through the telescopic rod 603. The drive device 3 drives the cleaning plate device 4 to move back and forth, scraping the medicine residue and waste off the filter disc device 601 and discharging it into the collection cylinder 2. The first motor 202 drives the drive gear 203 to rotate. The drive gear 203 drives the discharge device 9 to rotate through the gear ring 904. The discharge scraper 903 drives the medicine residue and waste in the collection cylinder 2 to be discharged from the waste discharge outlet 201. The medicine residue and waste separated by filtration are automatically cleaned and discharged for collection.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model 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 basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and all changes falling within the meaning and scope of the equivalents of the claims are intended to be included within this utility model.

[0028] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A suction filter for the production of acetaminophen comprising a suction filter tank provided with a suction filter tube and a liquid discharge port at the lower end, characterized in that, The outer side of the upper end of the suction filter tank is provided with a concentric material collecting cylinder, a discharging device is rotatably connected in the material collecting cylinder, a radial driving device is arranged on the upper end surface of the material collecting cylinder, a cleaning plate device is arranged on the driving device, a liquid collecting tank is fixedly connected in the suction filter tank, the liquid collecting tank comprises a liquid collecting cylinder, a liquid guiding cone cylinder is fixedly connected to the lower end of the liquid collecting cylinder, a filtering device is arranged in the liquid collecting cylinder, the filtering device comprises a filtering disc device and a cylinder device, the filtering disc device is in sliding sealing connection with the inner wall of the liquid collecting cylinder, the cylinder device is fixedly installed on the liquid guiding cone cylinder, and the filtering disc device is connected with the cylinder device through an extension rod.

2. The suction filter for the production of acetaminophen according to claim 1, characterized in that, A waste material discharge port is arranged on the bottom plate of the material collecting cylinder, a first motor is fixedly connected to the outer wall of the material collecting cylinder, a driving gear is arranged on the first motor, the driving device comprises a mounting bracket, the mounting bracket is fixedly connected to the upper end surface of the material collecting cylinder in a symmetrical mode, a screw rod is rotatably connected between the two mounting brackets, one end of the screw rod is connected with a second motor, and parallel guide rods are fixedly connected to the two sides of the screw rod.

3. The suction filter for the production of acetaminophen according to claim 2, characterized in that, The discharging device comprises an outer rotating ring and an inner rotating ring, the outer rotating ring and the inner rotating ring are coaxial with the center line of the suction filter tank and are rotatably connected with the material collecting cylinder, a discharging scraper is fixedly connected between the outer rotating ring and the inner rotating ring, a gear ring is arranged on the outer wall of the outer rotating ring, and the gear ring is in meshing connection with the driving gear.

4. The suction filter for the production of acetaminophen according to claim 2, characterized in that, The cleaning plate device comprises a bearing platform, screw holes are formed in the bearing platform, guide holes are formed on the two sides of the screw holes, the screw holes are in transmission connection with the screw rod, and the guide holes are in sliding connection with the guide rods.

5. The suction filter for the production of acetaminophen according to claim 1, characterized in that, An installation cover with an opening downward is arranged on the outer conical surface of the liquid guiding cone cylinder, and a liquid outlet is formed in the lower end of the liquid guiding cone cylinder.

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