Filtering device for pharmacy

Abstract

The utility model relates to the technical field of filtering equipment, and discloses a pharmaceutical filtering device which comprises a tank body and an electric push rod, the electric push rod is transversely installed in the middle of one end of the tank body, the extending end of the electric push rod penetrates into the tank body, an annular frame is arranged in the tank body at the tail end of the electric push rod, and an abutting block is arranged in the middle of the annular frame. Multiple layers of filter screens are fixed between the abutting block and the annular frame, the tail end of the electric push rod is fixed to the surface of the abutting block, and a feeding pipe communicated with the interior of the tank body is arranged on the side edge of the tank body above the electric push rod. According to the technical scheme, the filter screen is fixed on the inner side of the ring frame which can be driven to move left and right in the tank body, the ring frame can be driven to move left and right in the filtering process, and when the ring frame moves towards one end of the feeding pipe, liquid medicine which is not filtered by the filter screen is pressurized, so that the liquid medicine quickly passes through the filter screen and is efficiently filtered; in addition, the filter screen can move close to the hollow frame to be reversely washed, and the frequency of detaching and cleaning the filter screen is reduced.

Description

Technical Field

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

[0002] The pharmaceutical industry is an important part of the national economy, focusing on the production of medicines for the prevention, treatment and diagnosis of diseases. The pharmaceutical process includes the production of active pharmaceutical ingredients (APIs) and the production of pharmaceutical formulations. It has high requirements for raw materials and processes. In order to remove insoluble particles and impurities from drugs and improve the purity and safety of drugs, the API solution needs to be filtered. At the same time, filtration also helps to improve production efficiency, optimize production processes and ensure that the final product meets strict quality control standards.

[0003] In existing filtration technologies, the liquid medicine passes naturally through a filter screen or filter element due to gravity. When the filter screen has high precision and a small pore size, the liquid medicine passes through slowly, resulting in low filtration efficiency. Furthermore, the filter screen is prone to clogging and requires frequent cleaning, which is detrimental to efficient production. Therefore, we propose a pharmaceutical filtration device. Utility Model Content

[0004] The purpose of this invention is to provide a pharmaceutical filtration device. By fixing the filter screen inside the tank and moving it left and right on the inner side of a ring frame, the ring frame can be moved left and right during the filtration process. When it moves towards the feed pipe, it pressurizes the unfiltered liquid, allowing it to pass through the filter screen quickly and be filtered efficiently. In addition, the filter screen can move closer to the hollow frame so that it can be backwashed, reducing the frequency of disassembling and cleaning the filter screen, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pharmaceutical filtration device, comprising a tank and an electric actuator, wherein the electric actuator is horizontally installed at the middle position of one end of the tank, the extended end of the electric actuator penetrates into the interior of the tank, a ring frame is provided in the tank at the end of the electric actuator, a stop block is provided in the middle position of the ring frame, multiple layers of filter screen are fixed between the stop block and the ring frame, and the end of the electric actuator is fixed to the surface of the stop block, an inlet pipe communicating with the interior is provided on the side of the tank above the electric actuator, and an outlet pipe communicating with the interior is connected to the bottom of the tank away from the electric actuator; a hollow frame is fixed on the inner surface of the tank at the end away from the electric actuator, a plurality of nozzles facing the filter screen are evenly arranged on the surface of the hollow frame, and a water inlet pipe communicating with the hollow frame and penetrating to the outside of the tank is also provided.

[0006] By adopting the above technical solution, the medicine enters the tank and is filtered by the filter screen. During filtration, the filter screen moves back and forth. The medicine that has not passed through the filter screen is pressurized near the feed pipe and passes through the filter screen more quickly to achieve the purpose of efficient filtration. The filter screen can also be backwashed to achieve the purpose of rapid cleaning.

[0007] Optionally, a one-way valve is installed on the feed pipe, with the flow direction of the one-way valve facing the inside of the tank.

[0008] By adopting the above technical solution, when the ring frame moves towards the feed pipe, unfiltered liquid medicine is prevented from being pressurized and discharged from the feed pipe.

[0009] Optionally, the bottom of the tank at one end of the feed pipe is provided with a discharge port communicating with its interior, and a screw cap is screwed onto the discharge port.

[0010] By adopting the above technical solution, when backwashing and cleaning the filter screen, the screw cap is unscrewed to discharge sewage and impurities washed off.

[0011] Optionally, valves are installed on both the discharge pipe and the water inlet pipe to control the opening and closing of the discharge pipe and the water inlet pipe.

[0012] Optionally, a sealing ring is fixed around the outer ring of the ring frame, and the sealing ring is in contact with the inner wall surface of the tank.

[0013] By adopting the above technical solution, the possibility of unfiltered liquid medicine passing through the gap between the ring frame and the tank body is avoided.

[0014] Optionally, the tank body is split into two halves in the middle, and the middle part of the tank body is connected and fixed by a ring plate and a bolt locking the ring plate.

[0015] By adopting the above technical solution, the tank retains its ability to be disassembled, and can be disassembled for thorough cleaning when necessary.

[0016] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0017] 1. The technical solution of this application fixes the filter screen inside the tank and can be driven to move left and right. During the filtration process, the ring frame can be driven to move left and right. When it moves towards the feed pipe, it pressurizes the unfiltered liquid, allowing it to pass through the filter screen quickly and be filtered efficiently. In addition, the filter screen can also move closer to the hollow frame so that it can be backwashed, reducing the frequency of disassembling and cleaning the filter screen.

[0018] 2. The technical solution of this application allows the ring frame and filter screen to be moved closer to the side of the hollow frame, so that the nozzle on the surface of the hollow frame is closer to the filter screen, giving it a stronger impact force and thus cleaning it better. Attached Figure Description

[0019] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1This is a schematic diagram of the overall structure of the pharmaceutical filtration device of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the pharmaceutical filtration device of this utility model;

[0022] Figure 3 This is a schematic diagram of the inner structure of the ring frame of the pharmaceutical filtration device of this utility model.

[0023] In the diagram: 1. Tank body; 11. Feed pipe; 111. Check valve; 12. Discharge pipe; 13. Waste discharge port; 131. Screw cap; 14. Ring plate; 141. Bolt; 2. Electric actuator; 3. Ring frame; 31. Abutment block; 32. Filter screen; 33. Sealing ring; 4. Hollow frame; 41. Nozzle; 42. Water inlet pipe; 5. Valve. Detailed Implementation

[0024] Please see Figure 1-3 This utility model provides a technical solution: a pharmaceutical filtration device, including a tank 1 and an electric push rod 2. The tank 1 is placed horizontally for use. The electric push rod 2 is horizontally installed at the middle position of the right end of the tank 1. The protruding end of the electric push rod 2 penetrates into the interior of the tank 1. A ring frame 3 is provided in the tank 1 at the end of the electric push rod 2. A stop block 31 is provided in the middle position of the ring frame 3. A multi-layer filter screen 32 is fixed between the stop block 31 and the ring frame 3. The end of the electric push rod 2 is fixed to the surface of the stop block 31. The outer ring of the ring frame 3 is close to the inner wall surface of the tank 1. A sealing ring 33 is fixed around the outer ring of the ring frame 3. The sealing ring 33 is in contact with the inner wall surface of the tank 1.

[0025] A feed pipe 11 is provided on the side of the tank 1 above the electric push rod 2, and a discharge pipe 12 is connected to the bottom of the tank 1 away from the electric push rod 2. When in use, the liquid medicine enters the tank 1 from the feed pipe 11 on the right side, and is then filtered by the filter screen 32 and discharged to the left from the discharge pipe 12.

[0026] In addition, to increase the filtration speed, the electric actuator 2 can be controlled to first drive the ring frame 3 and the filter screen 32 to move to the left, and then move in the opposite direction to the right, gradually compressing the liquid medicine on the right side of the ring frame 3 that has not been filtered by the filter screen 32, so that the liquid medicine is heated and can be filtered through the filter screen 32 more quickly. Repeating this operation can increase the filtration speed of the liquid medicine. In order to prevent the liquid medicine from being discharged from the feed pipe 11 when the filter screen 32 and the ring frame 3 move to the right to compress it, a one-way valve 111 is installed on the feed pipe 11. The flow direction of the one-way valve 111 is towards the inside of the tank body 1, so that the liquid medicine can only enter the tank body 1 from the feed pipe 11 and prevent the liquid medicine from being pressurized and discharged from the feed pipe 11.

[0027] Additionally, a hollow frame 4 is fixed to the inner surface of the left side of the tank 1. Multiple nozzles 41 are evenly arranged on the right side surface of the hollow frame 4, facing the filter screen 32 inside the ring frame 3. A water inlet pipe 42 is also provided, which communicates with the hollow frame 4 and extends to the outside of the tank 1. Valves 5 are installed on both the discharge pipe 12 and the water inlet pipe 42 to control the opening and closing of the discharge pipe 12 and the water inlet pipe 42. When the surface of the filter screen 32 needs to be cleaned after a period of use, first close the valve 5 on the discharge pipe 12 and stop supplying the liquid to the inside of the tank 1. Control the electric actuator 2 to move the ring frame 3 and the filter screen 32 to the left side near the hollow frame 4. Open the valve 5 on the water inlet pipe 42 to allow high-pressure clean water to enter the hollow frame 4. Then spray it out from the nozzles 41 to the filter screen 32 inside the left ring frame 3, flushing down a large amount of impurities accumulated on the right side of the filter screen 32. Regularly backwash the filter screen 32 to reduce the frequency of cleaning when disassembling the device.

[0028] The bottom of the tank 1 at one end of the feed pipe 11 is provided with a discharge port 13 that communicates with the inside of the tank. A screw cap 131 is screwed onto the discharge port 13. When backwashing the filter screen 32, the screw cap 131 on the discharge port 13 is unscrewed so that the impurities after rinsing the filter screen 32 are discharged from the discharge port 13 along with the sewage. After cleaning, the screw cap 131 is screwed back onto the discharge port 13 and the valve 5 on the water inlet pipe 42 is closed. The liquid medicine can continue to be supplied to the inside of the tank 1 and the valve 5 on the discharge pipe 12 can be opened to continue the liquid medicine filtration work.

[0029] The tank body 1 is split into two halves in the middle, and the middle part of the tank body 1 is connected and fixed by a ring plate 14 and a bolt 141 locking the ring plate 14. When the filter screen 32 needs to be thoroughly cleaned, the bolt 141 can be unscrewed to open the tank body 1 from the ring plate 14, allowing the filter screen 32 to be exposed for more thorough cleaning.

[0030] In use, the feed pipe 11 is connected to the liquid supply pipe, the discharge pipe 12 is connected to the discharge pipe, and the water inlet pipe 42 is connected to the high-pressure water source. During use, the valve 5 on the discharge pipe 12 is kept open. The liquid enters the inside right side of the tank 1 through the feed pipe 11, is filtered by the filter screen 32 inside the ring frame 3, and flows to the left. Finally, it is discharged to the outside through the discharge pipe 12. In order to increase the filtration speed, the electric actuator 2 can be connected to the industrial control equipment and controlled to first drive the ring frame 3 and the filter screen 32 to the left, and then move in the opposite direction to the right. This gradually compresses the liquid that has not been filtered by the filter screen 32 on the right side of the ring frame 3, so that the liquid is heated and can be filtered through the filter screen 32 more quickly. Repeating this operation can increase the filtration speed of the liquid. After a period of use, cleaning can be performed: First, close valve 5 on the discharge pipe 12 and stop supplying the liquid medicine to the tank 1. Unscrew cap 131 on the discharge port 13. Control electric actuator 2 to move the ring frame 3 and filter screen 32 to the left side near the hollow frame 4. Open valve 5 on the inlet pipe 42 to allow high-pressure clean water to enter the hollow frame 4. Then, spray water from nozzle 41 onto the filter screen 32 in the left ring frame 3 to flush down a large amount of impurities accumulated on the right side of the filter screen 32. Finally, the impurities are discharged from the discharge port 13 along with the wastewater. After cleaning, screw cap 131 back onto the discharge port 13 and close valve 5 on the inlet pipe 42. You can continue to supply the liquid medicine to the tank 1 and open valve 5 on the discharge pipe 12 to continue the liquid medicine filtration. Of course, when stopping filtration, you can also unscrew bolt 141 to disassemble the tank 1 from the ring plate 14 to allow the filter screen 32 to be exposed for more thorough cleaning.

Claims

1. A pharmaceutical filtering device comprising a tank (1) and an electric pushrod (2), characterized in that: The electric push rod (2) is horizontally installed at the middle position of one end of the tank (1). The extended end of the electric push rod (2) penetrates into the interior of the tank (1). A ring frame (3) is provided in the tank (1) at the end of the electric push rod (2). A stop block (31) is provided in the middle position of the ring frame (3). A multi-layer filter screen (32) is fixed between the stop block (31) and the ring frame (3). The end of the electric push rod (2) is fixed to the surface of the stop block (31). A feed pipe (11) communicating with the interior is provided on the side of the tank (1) above the electric push rod (2). A discharge pipe (12) communicating with the interior is connected to the bottom of the tank (1) away from the electric push rod (2). A hollow frame (4) is fixed on the inner surface of the tank (1) away from the electric push rod (2). Multiple nozzles (41) facing the filter screen (32) are evenly arranged on the surface of the hollow frame (4). A water inlet pipe (42) is also provided that communicates with the hollow frame (4) and extends through to the outside of the tank (1).

2. The pharmaceutical filtration apparatus according to claim 1, wherein: A one-way valve (111) is installed on the feed pipe (11), and the flow direction of the one-way valve (111) is towards the inside of the tank (1).

3. The pharmaceutical filtration device of claim 1, wherein: The bottom of the tank (1) at one end of the feed pipe (11) is provided with a discharge port (13) that communicates with the interior of the tank, and a screw cap (131) is screwed onto the discharge port (13).

4. The pharmaceutical filtration device of claim 1, wherein: Valves (5) are installed on both the discharge pipe (12) and the water inlet pipe (42) to control the opening and closing of the discharge pipe (12) and the water inlet pipe (42).

5. The pharmaceutical filtration device of claim 1, wherein: The outer ring of the ring frame (3) is fixed with a sealing ring (33), which is in contact with the inner wall surface of the tank body (1).

6. The pharmaceutical filtration device of claim 1, wherein: The tank (1) is split into two halves in the middle position, and the middle position of the tank (1) is connected and fixed by a ring plate (14) and a bolt (141) locking the ring plate (14).

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