A modular self-cleaning pharmaceutical synthetic filter

Abstract

This utility model relates to the field of pharmaceutical and chemical production equipment, and in particular to a modular self-cleaning pharmaceutical synthesis filter, including a treatment box and a collection box. The treatment box has first electric slide rails installed on both its front and rear sides. A first base is slidably connected between the two first electric slide rails, and a filter element is slidably connected inside the first base. A second base is connected to the top of the first base, and a placement rack is slidably connected inside the second base. An activated carbon filter assembly is placed in the placement rack. The bottom of the portion of the first electric slide rail extending out of the treatment box is connected to a sliding frame, and the front and rear sides of the collection box are slidably connected to the sliding frame. Through the coordinated control of the first and second electric slide rails, the first and second bases can be slidably replaced independently. Therefore, only the second base needs to be driven to replace the activated carbon filter assembly, while the filter element is retained for continued use through its self-cleaning function. This breaks the traditional linked replacement mode, extends the filter media life, and reduces operating costs.

Description

Technical Field

[0001] This utility model relates to the field of pharmaceutical and chemical production equipment, and in particular to a modular self-cleaning pharmaceutical synthesis filter. Background Technology

[0002] Pharmaceutical manufacturing is a vital industry for safeguarding human health, involving complex processes such as chemical synthesis, bio-fermentation, and formulation processing. However, the synthesis of pharmaceutical intermediates and the preparation of active pharmaceutical ingredients often generate waste gases containing pollutants such as volatile organic compounds, particulate matter, and acidic gases. If these waste gases are discharged directly without effective treatment, they will not only cause serious environmental pollution but may also harm the health of operators and nearby residents. Therefore, the purification and treatment of pharmaceutical manufacturing waste gases is one of the key issues that the industry urgently needs to address.

[0003] CN117599566B discloses a waste gas purification device and method for the synthesis of pharmaceutical intermediates. The device employs a multi-stage purification structure, including a pretreatment chamber and an activated carbon adsorption chamber. By incorporating replaceable activated carbon boxes, the activated carbon can be replaced without shutting down the system, thus ensuring continuous operation of the waste gas treatment system. In its technical solution, filters are installed in the pretreatment chamber to intercept large particulate impurities in the waste gas, while the activated carbon boxes are responsible for adsorbing organic pollutants. However, the filter and activated carbon box use a linked replacement mechanism, meaning that the filter must be replaced simultaneously when the activated carbon box is replaced. Although this design simplifies the operation process, it has significant drawbacks in practical applications.

[0004] Because large particulate impurities in pharmaceutical synthesis waste gas can usually be effectively removed through physical interception, the actual service life of filter elements is much longer than that of activated carbon adsorption materials. However, due to the structural coupling between the activated carbon box and the filter element, the filter element must be replaced every time the activated carbon box is replaced, resulting in a large amount of filter media that still has filtration capacity being discarded prematurely. In addition, most existing filter elements are designed for single use and lack self-cleaning or regeneration functions, further increasing operating costs and solid waste generation. Utility Model Content

[0005] To overcome the resource waste caused by synchronous replacement, this utility model provides a modular self-cleaning pharmaceutical synthesis filter, which aims to solve the above-mentioned shortcomings.

[0006] A modular self-cleaning pharmaceutical synthetic filter includes a processing box and a collection box. An air inlet pipe is connected to the bottom of the processing box, and an exhaust pipe is connected to the top of the processing box. First electric slide rails are installed on both the front and rear sides of the processing box. A first base is slidably connected between the two first electric slide rails. A filter element is slidably connected inside the first base. A second base is connected to the top of the first base, and a placement rack is slidably connected inside the second base. An activated carbon filter assembly is placed inside the placement rack. The bottom of the portion of each of the first electric slide rails extending out of the processing box is connected to a sliding frame. Both the front and rear sides of the collection box are slidably connected to the sliding frames. A waste hopper is connected forward to the top of the front sliding frame, and the sidewall of the waste hopper is connected to the processing box. A cleaning component for pushing the placement rack is provided rearward on the top of the rear sliding frame.

[0007] Furthermore, it is particularly preferred that the cleaning component includes a mounting frame, the front end of which is connected to the top of the slide, and second electric slide rails are installed on both the left and right sides inside the mounting frame. A movable frame is slidably connected inside the mounting frame, and the second electric slide rails are used to drive the movable frame. A blower is installed on the top of the movable frame, and an air outlet pipe is installed extending from the air outlet of the blower. The air outlet pipe is provided with a downward-facing slender notch.

[0008] Furthermore, it is particularly preferred that a number of guide rods are connected to the middle of the front end of the second base. The guide rods are divided into upper and lower parts, and the same part of the guide rods is slidably connected to a pressing plate. Each guide rod is fitted with a return spring. One end of the return spring is connected to the second base, and the other end is connected to the pressing plate. Each pressing plate has a guide block connected to its front end, and the guide block is provided with an inclined surface.

[0009] Furthermore, it is particularly preferred that the front end of the movable frame is connected to a cushioning pad.

[0010] Furthermore, it is particularly preferred that the collection box is provided with an observation window made of transparent material.

[0011] Furthermore, it is particularly preferred that a protective pad is placed inside the waste hopper.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. Through the coordinated control of the first and second electric slide rails, the first and second bases can be slidably replaced independently. Thus, only the second base needs to be driven to replace the activated carbon filter component, while the filter element can be retained for continued use through the self-cleaning function. This breaks the traditional linkage replacement mode, extends the filter material life, and reduces operating costs.

[0014] 2. By using a blower and an air outlet pipe, a high-speed, vertically downward airflow impacts the bottom of the filter element, blowing the attached particles into the collection box. The particles are then locked in place by the cotton filter cloth. In-situ cleaning can be achieved without disassembling the filter element, reducing manual intervention and solid waste generation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram showing the connection relationship between the second base and the placement rack of this utility model.

[0017] Figure 3 This is a schematic diagram showing the connection between the collection box and the cotton filter cloth of this utility model.

[0018] Figure 4 This is an exploded view of the mounting structure of the mounting bracket and the second electric slide rail of this utility model.

[0019] Figure 5 for Figure 2 A magnified view of a portion of point A in the middle.

[0020] Figure 6 for Figure 4 A magnified view of a section at point B.

[0021] The above-mentioned attached drawings include the following reference numerals: 1. Air inlet pipe, 2. Processing box, 3. Exhaust pipe, 4. First electric slide rail, 5. First base, 6. Filter element, 7. Second base, 8. Placement rack, 9. Activated carbon filter assembly, 91. Waste hopper, 10. Slide rack, 11. Collection box, 12. Cotton filter cloth, 13. Mounting rack, 14. Second electric slide rail, 15. Moving rack, 16. Blower, 17. Air outlet pipe, 18. Squeezing plate, 19. Guide rod, 20. Return spring, 21. Guide block, 22. Buffer pad, 23. Observation window, 24. Protective pad. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0023] Example: A modular self-cleaning pharmaceutical synthetic filter, such as Figures 1-4As shown, the system includes an inlet pipe 1, a treatment box 2, an exhaust pipe 3, a first electric slide rail 4, a first base 5, a filter element 6, a second base 7, a placement rack 8, an activated carbon filter assembly 9, a waste hopper 91, a slide frame 10, a collection box 11, cotton filter cloth 12, and a cleaning assembly. The bottom of the treatment box 2 is connected to the inlet pipe 1, and the top of the treatment box 2 is connected to the exhaust pipe 3. First electric slide rails 4 are installed on both the front and rear sides of the treatment box 2. A first base 5 is slidably connected between the two first electric slide rails 4. A filter element 6 is slidably connected inside the first base 5. A second base 7 is connected to the top of the first base 5, and a placement rack 8 is slidably connected inside the second base 7. The activated carbon filter assembly 9 is placed inside the placement rack 8. After the exhaust gas enters the treatment box 2 through the inlet pipe 1, it first flows through the bottom of the filter element 6. Due to the inertia of the airflow, solid particles are intercepted and adhere to the bottom surface of the filter element 6. Subsequently, the exhaust gas enters the activated carbon filter assembly 9 through the through holes at the bottom of the second base 7 and the placement rack 8. Volatile organic compounds and harmful gases are adsorbed and purified here, and finally discharged through the exhaust pipe 3. The bottom of the first electric slide rail 4 extending out of the treatment box 2 is connected to the slide frame 10. The front and rear sides of the collection box 11 are slidably connected to the slide frame 10. The top of the front slide frame 10 is connected to the waste hopper 91, and the side wall of the waste hopper 91 is connected to the treatment box 2. The top of the rear slide frame 10 is provided with a cleaning assembly that pushes the placement rack 8 backward.

[0024] like Figure 1 , Figure 4 and Figure 6 As shown, the cleaning assembly includes a mounting bracket 13, a second electric slide rail 14, a movable frame 15, a blower 16, and an air outlet pipe 17. The front end of the mounting bracket 13 is connected to the top of the slide 10. The second electric slide rail 14 is installed on both the left and right sides inside the mounting bracket 13. The movable frame 15 is slidably connected inside the mounting bracket 13. The second electric slide rail 14 is used to drive the movable frame 15. The blower 16 is installed on the top of the movable frame 15. The air outlet of the blower 16 extends to install the air outlet pipe 17. The air outlet pipe 17 is provided with a downward-facing slender notch. After the filter assembly is replaced, the second electric slide rail 14 drives the movable frame 15 to slide forward along the mounting bracket 13. The buffer pad 22 at the front end of the movable frame 15 contacts the rear end of the placement frame 8, and the push force causes the placement frame 8, along with the activated carbon filter assembly 9, to slide out from the second base 7. The high-speed airflow forms a vertical downward air curtain through the slender notch of the air outlet duct 17, which impacts the bottom surface of the filter element 6. The airflow peels the attached particles from the filter element 6, and the particles fall into the collection box 11 under the action of gravity. The cotton filter cloth 12 captures the falling particles through its fiber structure.

[0025] like Figure 2 and Figure 5As shown, it also includes a squeezing plate 18, guide rods 19, a reset spring 20, and guide blocks 21. Four guide rods 19 are connected to the middle of the front end of the second base 7. The guide rods 19 are divided into upper and lower parts, with two rods on each side. The two guide rods 19 in the same part are slidably connected to the squeezing plate 18. Each guide rod 19 is fitted with a reset spring 20. One end of the reset spring 20 is connected to the second base 7, and the other end is connected to the squeezing plate 18. Each front end of the squeezing plate 18 is connected to a guide block 21. The guide block 21 is provided with an inclined surface. After the old activated carbon filter component 9 is removed and replaced with a new component, during the pushing process, the inclined surfaces of the guide blocks 21 on both sides of the placement rack 8 contact the squeezing plate 18. The squeezing plate 18 moves backward along the guide rods 19 and compresses the reset spring 20, providing guiding space for the placement rack 8.

[0026] like Figure 6 As shown, it also includes a buffer pad 22. The front end of the movable frame 15 is connected to the buffer pad 22. When the placement frame 8 and the activated carbon filter assembly 9 are separated from the second base 7, the buffer pad 22 first contacts the rear end of the placement frame 8.

[0027] like Figure 3 As shown, it also includes an observation window 23. The collection box 11 is equipped with an observation window 23 made of transparent material. Staff can directly observe the particle adhesion on the surface of the cotton filter cloth 12 inside the collection box 11 through the observation window 23 and clean or replace the filter cloth as needed.

[0028] like Figure 1 As shown, it also includes a protective pad 24. The protective pad 24 is placed in the waste hopper 91. When the activated carbon filter assembly 9 slides from the slide 10 into the waste hopper 91, the protective pad 24 absorbs the impact energy of falling through its own deformation, while increasing the friction of the contact surface and slowing down the sliding speed of the assembly.

[0029] Exhaust gas enters the treatment chamber 2 through the inlet pipe 1 and is filtered by the filter element 6 and activated carbon filter assembly 9 inside the treatment chamber 2. The bottom of the filter element 6 filters particles that move with the exhaust gas and mainly adheres to the bottom surface of the filter element 6. The activated carbon filter assembly 9 adsorbs harmful substances in the exhaust gas. The bottom of the second base 7 and the placement rack 8 are both through holes. After filtering for a period of time, the filter components are replaced. That is, the first base 5 is driven to move laterally by the first electric slide rail 4, which drives the second base 7 on top of it to slide out of the treatment chamber 2 at the same time, so that another set of filter components moves into the treatment chamber 2 to maintain the filtration operation.

[0030] After replacement, the second electric slide rail 14 drives the moving frame 15 to slide forward. The buffer pad 22 at the front end of the moving frame 15 presses against the placement rack 8 and the activated carbon filter assembly 9, thereby pushing the placement rack 8 and the activated carbon filter assembly 9 out of the second base 7. At this time, the blower 16 is turned on. The air blown by the blower 16 diffuses through the air outlet pipe 17 and restricts the airflow to blow vertically downward. Since the bottom of the second base 7 is through-hole, the air blown by the air outlet pipe 17 comes into contact with the filter element 6. Moreover, the downward airflow can blow out the particles adsorbed at the bottom of the filter element 6. The falling particles fall into the collection box 11. The cotton filter cloth 12 can lock the particles according to its own characteristics, preventing the airflow from blowing the particles away again. The moving frame 15 slowly passes through the second base 7, pushing the placement rack 8 and the activated carbon filter assembly 9 to detach from the second base 7. The placement rack 8 and the activated carbon filter assembly 9 fall into the waste hopper 91, keeping them safe. The pad 24 acts as a buffer. When replacing the activated carbon filter assembly 9 in the placement rack 8, the placement rack 8 is pushed into the second base 7. When the two sides of the placement rack 8 align with the second base 7, the placement rack 8 first contacts the inclined surface of the guide block 21. During the pushing process, the placement rack 8 squeezes the guide block 21 and the squeezing plate 18. The squeezing plate 18 slides along the guide rod 19, compressing the return spring 20. The squeezing plates 18 on both sides guide the placement rack 8 smoothly into the second base 7 through the inclined surface of the guide block 21, ensuring a stable connection. This completes the replacement of the activated carbon filter assembly 9 and the cleaning of the filter element 6. After the rear end of the placement rack 8 enters the second base 7, the placement rack 8 moves horizontally within the second base 7. The squeezing plate 18 is not squeezed by the placement rack 8. The return spring 20 pushes the squeezing plate 18 to slide back along the guide rod 19 through elastic reset. The filter element awaits the next replacement of the filter element.

[0031] Observe the surface condition of the cotton filter cloth 12 inside the collection box 11 through the observation window 23, pull out the collection box 11, and slide the collection box 11 along the slide 10 to clean or replace the cotton filter cloth 12.

[0032] The above are merely embodiments of this utility model and are not intended to limit the scope of this utility model. All equivalent substitutions made within the principles of this utility model should be included within the protection scope of this utility model. Contents not described in detail in this utility model are existing technologies known to those skilled in the art.

Claims

1. A modular self-cleaning pharmaceutical synthesis filter, characterized in that, The system includes a processing box (2) and a collection box (11). The bottom of the processing box (2) is connected to an air inlet pipe (1), and the top of the processing box (2) is connected to an exhaust pipe (3). First electric slide rails (4) are installed on both the front and rear sides of the processing box (2). A first base (5) is slidably connected between the two first electric slide rails (4). A filter element (6) is slidably connected inside the first base (5). A second base (7) is connected to the top of the first base (5), and a container for placing filters is slidably connected inside the second base (7). The rack (8) contains an activated carbon filter assembly (9). The bottom of the first electric slide rail (4) extending out of the processing box (2) is connected to a slide frame (10). The collection box (11) is slidably connected to the slide frame (10) on both the front and rear sides. The top of the front slide frame (10) is connected to a waste hopper (91), and the side wall of the waste hopper (91) is connected to the processing box (2). The top of the rear slide frame (10) is provided with a cleaning assembly that pushes the rack (8) backward.

2. A modular self-cleaning pharmaceutical synthesis filter as claimed in claim 1, characterized in that, The cleaning assembly includes a mounting bracket (13), the front end of which is connected to the top of the slide (10). A second electric slide rail (14) is installed on both the left and right sides of the mounting bracket (13). A movable frame (15) is slidably connected inside the mounting bracket (13). The second electric slide rail (14) is used to drive the movable frame (15). A blower (16) is installed on the top of the movable frame (15). An air outlet pipe (17) is installed on the air outlet of the blower (16). The air outlet pipe (17) has a downward-facing slender notch.

3. The modular self-cleaning pharmaceutical synthetic filter as described in claim 2, characterized in that, The second base (7) has several guide rods (19) connected to the middle of its front end. The guide rods (19) are divided into upper and lower parts. The same guide rod (19) is slidably connected to a pressing plate (18). Each guide rod (19) is fitted with a return spring (20). One end of the return spring (20) is connected to the second base (7), and the other end is connected to the pressing plate (18). Each pressing plate (18) has a guide block (21) connected to its front end. The guide block (21) is provided with an inclined surface.

4. The modular self-cleaning pharmaceutical synthetic filter as described in claim 3, characterized in that, The front end of the mobile frame (15) is connected to a buffer pad (22).

5. A modular self-cleaning pharmaceutical synthetic filter as described in claim 4, characterized in that, The collection box (11) is equipped with a transparent observation window (23).

6. A modular self-cleaning pharmaceutical synthesis filter as described in claim 5, characterized in that, A protective pad (24) is placed inside the waste hopper (91).

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