Pharmaceutical waste gas filtering pretreatment device

Abstract

This utility model relates to the field of waste gas filtration pretreatment technology, specifically a pharmaceutical waste gas filtration pretreatment device, including a housing. An air inlet box is fixedly installed on the surface of the housing, an air inlet pipe is fixedly installed on the side of the air inlet box, a permeable plate is fixedly installed inside the air inlet box, and a first filter box is fixedly installed on the surface of the air inlet box. In this utility model, the dual filtration system of the first and second filter boxes effectively intercepts large particles and fine impurities in the waste gas, improving filtration efficiency. A cylinder in the cleaning box pushes a push plate to operate a cleaning brush, automatically cleaning impurities accumulated on the filter plate surface, reducing the need for manual intervention and extending the service life of the filtration system. Spray pipes are evenly arranged in the second filter box, and the fine water droplets released through atomizing nozzles enhance the ability to capture residual particles in the waste gas, while simultaneously reducing the temperature of the treated gas and optimizing the waste gas treatment effect.

Description

Technical Field

[0001] This utility model relates to the field of waste gas filtration and pretreatment technology, and in particular to a pharmaceutical waste gas filtration and pretreatment device. Background Technology

[0002] Currently, many pharmaceutical factories generate waste gases to varying degrees during research and development and production processes. If these gases are discharged directly outdoors without treatment, they will cause significant environmental pollution to the factory area and surrounding areas. In the traditional field of pharmaceutical waste gas treatment, common methods include using basic filtration systems and chemical scrubbing devices to reduce pollutants in emissions. While these methods can reduce air pollution to some extent, they still have many shortcomings. First, single filtration systems are inefficient when dealing with high-concentration or variable-property waste gases, easily leading to rapid clogging of the filter media and high maintenance and replacement costs. Furthermore, while chemical scrubbing methods can treat certain types of pollutants, their effectiveness in removing particulate matter and microparticles is limited, and the operation is complex; the use and handling of chemical reagents may also cause secondary pollution problems. In addition, these traditional methods often fail to adequately consider energy and operational efficiency, resulting in high long-term operating costs. The design of waste gas treatment systems also lacks sufficient flexibility to cope with changes in the composition and concentration of waste gases during production, which is particularly prominent in the pharmaceutical industry, as the production of different drugs may generate waste gases with drastically different properties. Therefore, the widespread application of such treatment equipment is limited. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] This utility model adopts the following technical solution: a pharmaceutical waste gas filtration pretreatment device, comprising a shell, an air inlet box fixedly installed on the surface of the shell, an air inlet pipe fixedly installed on the side of the air inlet box, a permeable plate fixedly installed inside the air inlet box, a first filter box fixedly installed on the surface of the air inlet box, a cleaning box fixedly installed on the surface of the first filter box, a second filter box fixedly installed on the surface of the cleaning box, filter plates fixedly installed inside both the first and second filter boxes, a cylinder fixedly installed on the side of the cleaning box, a push plate fixedly installed at the output end of the cylinder, cleaning brushes fixedly installed on both the upper and lower sides of the push plate, an air outlet hood fixedly installed on the surface of the second filter box, a water tank fixedly installed inside the shell, a connecting pipe fixedly installed between the water tank and the second filter box, and a spray pipe fixedly installed at the end of the connecting pipe.

[0005] Preferably, an exhaust pipe is fixedly installed at the top of the exhaust hood, and an exhaust fan is fixedly installed inside the exhaust pipe. Here, the exhaust fan enhances the exhaust gas emission speed, improves the ventilation efficiency of the entire device, prevents exhaust gas from accumulating, and ensures that the emitted gas is concentrated and discharged through the exhaust pipe, preventing the exhaust gas from directly escaping into the surrounding environment and improving environmental quality.

[0006] Preferably, an inlet pipe is fixedly installed on the side of the water tank, and a water pump is fixedly installed on the side of the shell. The output end of the water pump is connected to a connecting pipe. Here, the water tank is automatically supplied with water and circulated through the inlet pipe and the water pump, simplifying the operation process and enabling rapid water supply to meet the needs of handling large volumes of waste gas or long-term operation.

[0007] Preferably, the cleaning brush is in contact with the surfaces of the filter plates in filter box one and filter box two, respectively. Limiting strips are fixedly installed inside filter box one and filter box two, and the cleaning brush slides between the filter plate and the limiting strips. Here, the cleaning brush directly contacts the surface of the filter plate, effectively removing attached impurities, reducing filter plate clogging, and improving filtration efficiency.

[0008] Preferably, the spray pipes are evenly distributed inside the second filter box, and atomizing nozzles are fixedly installed on the lower surface of the spray pipes. This ensures that the spray range covers the entire filtration area, resulting in more uniform pretreatment of the exhaust gas and effectively reducing the particle concentration and temperature in the exhaust gas.

[0009] Preferably, a rotating shaft is rotatably connected inside the air intake box. The rotating shaft is located between the vent plate and the inner bottom surface of the air intake box, and a drive blade and a fan blade are fixedly mounted on the surface of the rotating shaft. Here, the drive blade, in conjunction with the air intake pipe, optimizes airflow guidance, improves the speed and efficiency of exhaust gas entering the device, and the rotation of the fan blade enhances gas flow, avoids dead zones, and improves the uniformity of airflow inside the filtration device.

[0010] Preferably, the drive blade corresponds to the air inlet of the air inlet pipe, and the drive blade is located below the fan blade. Here, the airflow direction is optimized, airflow turbulence is reduced, the overall efficiency of the filtration device is improved, the airflow inside the device is more stable, and airflow short-circuiting is avoided.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. In this utility model, the dual filtration system of No. 1 and No. 2 filter boxes effectively intercepts large particles and fine impurities in the exhaust gas, improving filtration efficiency. The cylinder in the cleaning box pushes the push plate to operate the cleaning brush, automatically cleaning the impurities accumulated on the surface of the filter plate, reducing the need for manual intervention and extending the service life of the filtration system. The spray pipes are evenly arranged in the No. 2 filter box, and the fine water droplets released by the atomizing nozzles enhance the ability to capture residual particles in the exhaust gas, while reducing the temperature of the treated gas and optimizing the exhaust gas treatment effect.

[0013] 2. In this utility model, a rotating shaft is set inside the air intake box. Combined with the coordinated work of the drive blade and the fan blade, the exhaust gas has undergone preliminary airflow conditioning before entering the filter box, reducing airflow turbulence entering the filtration system. The drive blade corresponds to the air inlet of the air intake pipe to ensure maximum efficiency in utilizing the intake power. The rotation of the fan blade helps to avoid internal dead corners and maintain the uniformity of airflow in the device. This not only improves the overall filtration performance but also prevents the problem of low local filtration efficiency caused by uneven airflow. Attached Figure Description

[0014] Figure 1 This utility model provides a schematic diagram of a pharmaceutical waste gas filtration and pretreatment device;

[0015] Figure 2 A rear view of a pharmaceutical waste gas filtration pretreatment device is provided for this utility model;

[0016] Figure 3 A cross-sectional view of a pharmaceutical waste gas filtration pretreatment device is provided for this utility model;

[0017] Figure 4 A schematic diagram of the air inlet box of a pharmaceutical waste gas filtration pretreatment device is provided for this utility model;

[0018] Figure 5 A partial exploded view of a pharmaceutical waste gas filtration pretreatment device is provided for this utility model;

[0019] Figure 6 This invention provides a schematic diagram of the spray pipe of a pharmaceutical waste gas filtration pretreatment device.

[0020] Legend:

[0021] 1. Shell; 2. Water tank; 3. Water pump; 4. Connecting pipe; 5. Air inlet box; 6. Air inlet pipe; 7. Ventilation plate; 8. Rotating shaft; 9. Drive blade; 10. Fan blade; 11. No. 1 filter box; 12. Cleaning box; 13. No. 2 filter box; 14. Filter plate; 15. Cylinder; 16. Push plate; 17. Cleaning brush; 18. Limiting strip; 19. Spray pipe; 20. Atomizing nozzle; 21. Air outlet hood; 22. Air outlet pipe; 23. Exhaust fan; 24. Water inlet pipe. Detailed Implementation

[0022] 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.

[0023] 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.

[0024] Example 1

[0025] Please see Figure 1-6This utility model provides a technical solution: a pharmaceutical waste gas filtration pretreatment device, including a shell 1, an air inlet box 5 fixedly installed on the surface of the shell 1, an air inlet pipe 6 fixedly installed on the side of the air inlet box 5, a permeable plate 7 fixedly installed inside the air inlet box 5, a first filter box 11 fixedly installed on the surface of the air inlet box 5, a cleaning box 12 fixedly installed on the surface of the first filter box 11, a second filter box 13 fixedly installed on the surface of the cleaning box 12, and filter plates 14 fixedly installed inside both the first filter box 11 and the second filter box 13. A cylinder 15 is fixedly installed, and a push plate 16 is fixedly installed at the output end of the cylinder 15. Cleaning brushes 17 are fixedly installed on both the upper and lower sides of the push plate 16. The cleaning brushes 17 are respectively attached to the surfaces of the filter plates 14 of filter box 11 and filter box 13. Limiting strips 18 are fixedly installed inside filter box 11 and filter box 13. The cleaning brushes 17 slide between the filter plates 14 and the limiting strips 18, directly contacting the surface of the filter plates 14, effectively removing attached impurities, reducing clogging of the filter plates 14, and improving the filtration effect. An exhaust hood 21 is fixedly installed on the surface of filter box 13. A water tank 2 is fixedly installed inside the shell 1. A connecting pipe 4 is fixedly installed between the water tank 2 and the second filter box 13. A spray pipe 19 is fixedly installed at the end of the connecting pipe 4. The spray pipes 19 are evenly distributed inside the second filter box 13. Atomizing nozzles 20 are fixedly installed on the lower surface of the spray pipes 19 to ensure that the spray range covers the entire filtration area, making the pretreatment of exhaust gas more uniform and effectively reducing the particle concentration and temperature in the exhaust gas. A water inlet pipe is fixedly installed on the side of the water tank 2, and a water inlet pipe is fixedly installed on the side of the shell 1. Pump 3, the output end of which is connected to connecting pipe 4, enables automatic water supply and circulation of water tank 2 through water inlet pipe and pump 3, simplifying the operation process and enabling rapid water supply to meet the needs of large flow of waste gas or long-term operation. A vent pipe 22 is fixedly installed at the top of vent hood 21, and an exhaust fan 23 is fixedly installed inside the vent pipe 22. The exhaust fan 23 enhances the exhaust speed of the waste gas, improves the ventilation efficiency of the entire device, prevents waste gas from accumulating, and the exhaust gas is concentrated and discharged through the vent pipe 22 to avoid the waste gas from directly escaping into the surrounding environment and improve environmental quality.

[0026] Example 2

[0027] Please see Figure 3-4The air intake box 5 is rotatably connected to a rotating shaft 8, which is located between the air permeable plate 7 and the bottom surface of the air intake box 5. The rotating shaft 8 is fixedly mounted with a drive blade 9 and a fan blade 10. The drive blade 9 works with the air intake pipe 6 to optimize the airflow direction and improve the speed and efficiency of the exhaust gas entering the device. The rotation of the fan blade 10 enhances the gas flow, avoids dead corners, and improves the uniformity of the airflow inside the filter device. The drive blade 9 corresponds to the air inlet of the air intake pipe 6 and is located below the fan blade 10. This optimizes the airflow direction, reduces airflow turbulence, improves the overall efficiency of the filter device, makes the airflow inside the device more stable, and avoids airflow short circuits.

[0028] Working Principle: In the operation of the pharmaceutical waste gas filtration pretreatment device, the waste gas is first introduced into the inlet box 5 through the inlet pipe 6. The permeable plate 7 helps disperse the airflow to evenly enter the first filter box 11. During the process of the waste gas entering the inlet box 5, the waste gas blows the drive blade 9 to rotate, which in turn drives the rotating shaft 8 to rotate, thereby causing the rotating shaft 8 to drive the fan blade 10 to rotate. Through the combined work of the drive blade 9 and the fan blade 10, the direction of the airflow is optimized and the flow of the airflow is enhanced, allowing the waste gas to enter the first filter box 11. The filter plate 14 in the first filter box 11 initially filters the waste gas, intercepting large particulate impurities. The waste gas then flows into the second filter box 13, where it undergoes further fine filtration through the filter plate 14. After passing through the filter plate 14 of the second filter box 13, the water in the water tank 2 is sent to the spray pipe 19 by the water pump 3. The spray pipe 19 is evenly distributed inside the second filter box 13. Fine water mist is sprayed out through the atomizing nozzle 20 to help capture the remaining fine particles and reduce the gas temperature. The thoroughly treated gas finally enters the exhaust pipe 22 through the exhaust hood 21. The exhaust fan 23 accelerates the gas flow in the exhaust pipe 22, promotes the rapid discharge of gas, and prevents the exhaust gas from lingering in the equipment. After long-term use, the filter plate 14 needs to be cleaned. At this time, the cylinder 15 in the cleaning box 12 pushes the push plate 16. The cleaning brush 17 on the push plate 16 slides back and forth between the filter plate 14 and the limit strip 18 to remove the impurities accumulated on the filter plate 14 and maintain the filtration efficiency.

[0029] 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 pharmaceutical waste gas filtration pretreatment device, comprising a housing (1), characterized in that: An air inlet box (5) is fixedly installed on the surface of the housing (1). An air inlet pipe (6) is fixedly installed on the side of the air inlet box (5). A vent plate (7) is fixedly installed inside the air inlet box (5). A first filter box (11) is fixedly installed on the surface of the air inlet box (5). A cleaning box (12) is fixedly installed on the surface of the first filter box (11). A second filter box (13) is fixedly installed on the surface of the cleaning box (12). Filter plates are fixedly installed inside both the first filter box (11) and the second filter box (13). 14) A cylinder (15) is fixedly installed on the side of the cleaning box (12). A push plate (16) is fixedly installed at the output end of the cylinder (15). Cleaning brushes (17) are fixedly installed on both the upper and lower sides of the push plate (16). An air hood (21) is fixedly installed on the surface of the second filter box (13). A water tank (2) is fixedly installed inside the shell (1). A connecting pipe (4) is fixedly installed between the water tank (2) and the second filter box (13). A spray pipe (19) is fixedly installed at the end of the connecting pipe (4).

2. The pharmaceutical waste gas filtering pre-treatment apparatus according to claim 1, characterized by: An exhaust pipe (22) is fixedly installed at the top of the exhaust hood (21), and an exhaust fan (23) is fixedly installed inside the exhaust pipe (22).

3. The pharmaceutical waste gas filtering pre-treatment apparatus according to claim 1, characterized by: A water inlet pipe (24) is fixedly installed on the side of the water tank (2), and a water pump (3) is fixedly installed on the side of the shell (1). The output end of the water pump (3) is connected to the connecting pipe (4).

4. The pharmaceutical waste gas filtering pre-treatment apparatus according to claim 1, characterized by: The cleaning brush (17) is attached to the surface of the filter plate (14) of the first filter box (11) and the second filter box (13), respectively. The first filter box (11) and the second filter box (13) are fixedly installed with a limiting strip (18), and the cleaning brush (17) slides between the filter plate (14) and the limiting strip (18).

5. The pharmaceutical waste gas filtering pre-treatment apparatus according to claim 1, characterized by: The spray pipes (19) are evenly distributed inside the second filter box (13), and atomizing nozzles (20) are fixedly installed on the lower surface of the spray pipes (19).

6. The pharmaceutical waste gas filtration pretreatment device according to claim 1, characterized in that: The air intake box (5) is rotatably connected to a rotating shaft (8), which is located between the air vent plate (7) and the bottom surface of the air intake box (5). A drive blade (9) and a fan blade (10) are fixedly installed on the surface of the rotating shaft (8).

7. The pharmaceutical waste gas filtration pretreatment device according to claim 6, characterized in that: The drive blade (9) corresponds to the air inlet of the air inlet pipe (6), and the drive blade (9) is located below the fan blade (10).

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