Waste gas solvent recovery mechanism for pesticide production

By adopting a combination design of isolation cylinder and installation cylinder in the pesticide production waste gas solvent recovery device, the problem of uneven use of activated carbon mesh is solved, achieving uniform filtration and convenient replacement of waste gas solvent, and improving the stability and maintenance convenience of the device.

CN223995501UActive Publication Date: 2026-03-17SHANDONG NUOHUA PESTICIDE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

In existing pesticide production waste gas solvent recovery devices, uneven use of activated carbon mesh leads to poor stability and adaptability, affecting filtration efficiency and ease of maintenance.

Method used

The system employs an internal isolation cylinder and installation cylinder structure within the recycling cylinder, combined with a separate installation design for the sealing plate and filter plate, to achieve uniform filtration and convenient replacement. The closed design of the feed pipe and discharge pipe ensures stable material feeding and discharging.

Benefits of technology

It improves the filtration precision and stability of waste gas solvents, enhances the adaptability and ease of maintenance of the equipment, and ensures the safety and efficiency of the filtration and recovery process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a waste gas solvent recovery mechanism for pesticide production, which comprises a recovery cylinder, the inside of the recovery cylinder is fixedly connected with an isolation cylinder, the side surface of the isolation cylinder is fixedly connected with a mounting cylinder, one end of the mounting cylinder is fixedly connected with the outer side surface of the recovery cylinder, the middle position of the mounting cylinder is provided with a connecting through groove, and the connecting through groove is fixedly connected with the isolation cylinder. A connecting hole is formed in one end of the mounting cylinder, sliding rods are slidably mounted on the two sides of the connecting hole, one end of each sliding rod is fixedly connected with a sealing plate, the other end of each sliding rod is slidably connected with a jacking spring in a sleeving mode, the jacking springs are connected to the inner side surface of the mounting cylinder in a jacking mode, and the ends of the sliding rods are fixedly connected with limiting blocks. A filter plate is slidably mounted at one end in the mounting cylinder, split mounting is performed in combination with the filter plate, uniform filtering can be performed after combined positioning, uniform maintenance and replacement are facilitated, adaptability is high, fineness and stability are improved, and mounting and use are facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of pesticide production, and more specifically, to a waste solvent recovery mechanism for pesticide production. Background Technology

[0002] The pesticide production process generates a large amount of waste gas containing volatile organic compounds (VOCs). Direct emission of these gases can severely pollute the atmosphere, affecting air quality, disrupting the ecological balance, and posing a threat to the health of workers in the production workshop. Therefore, effectively recovering the organic solvents from these waste gases has become an urgent problem to be solved. Waste gas solvent recovery devices have emerged to separate and recover organic solvents from waste gases, reducing environmental pollution and enabling resource reuse.

[0003] Application CN118874146A discloses a device and method for recovering solvents from waste gas in pesticide production, belonging to the field of agricultural production technology. It includes a recovery mechanism and a clamping mechanism. The recovery mechanism comprises a housing with a recovery chamber inside. A mounting frame is fixedly installed on the inner wall of the recovery chamber. A fixing plate is movably installed at the front end of the mounting frame. An activated carbon mesh is movably installed between the mounting frame and the fixing plate. An air inlet channel and an air outlet channel are respectively provided at the bottom and top of the recovery chamber. The input end of the air inlet channel is connected to an air inlet, and the output end of the air outlet channel is connected to an air outlet. Both the air inlet and air outlet are located at the rear end of the housing, with the air inlet positioned below the air outlet. This invention is simple to operate, structurally stable, and has low maintenance costs. It also significantly reduces downtime, improves the continuity of waste gas treatment and environmental protection effects, and has significant economic and social benefits.

[0004] In the above-disclosed structure, adsorption filtration can be achieved by installing multiple layers of activated carbon mesh inside the box. However, the layered structure results in the bottom layer adsorbing more while the upper layer comes into contact with less waste gas. This makes it difficult to use and replace the material evenly, affecting the stability of use and its poor adaptability. It also prevents uniform replacement after filtration, which needs to be improved. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a waste gas solvent recovery mechanism for pesticide production. By connecting an isolation cylinder inside the recovery cylinder, multiple installation cylinders can be positioned to filter and recover the solvent, reducing the impact of waste gas. Furthermore, by combining sealing plates through connection holes and installing filter plates separately, uniform filtration can be achieved after assembly and positioning. This facilitates unified maintenance and replacement, has high adaptability, improves precision and stability, and is beneficial for installation and use.

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A waste solvent recovery mechanism for pesticide production includes a recovery cylinder, an isolation cylinder fixedly connected inside the recovery cylinder, an installation cylinder fixedly connected to the side of the isolation cylinder, one end of the installation cylinder fixedly connected to the outer surface of the recovery cylinder, a connecting groove provided in the middle of the installation cylinder, a connecting hole provided at one end of the installation cylinder, sliding rods slidably installed on both sides of the connecting hole, a sealing plate fixedly connected to one end of the sliding rod, the sealing plate being tightly connected to one side surface of the connecting hole, a clamping spring slidably sleeved on the other end of the sliding rod, the clamping spring being tightly connected to the inner surface of the installation cylinder, a limit block fixedly connected to the end of the sliding rod, a filter plate slidably installed inside one end of the installation cylinder, a filter layer fixedly adhered to the surface of the filter plate, and one side surface of the filter plate being tightly connected to one end surface of the limit block.

[0008] Furthermore, the connecting groove is located in the gap between the recovery cylinder and the isolation cylinder, and the mounting cylinder is circumferentially distributed at equal angles on the side of the isolation cylinder.

[0009] Furthermore, a push rod is fixedly connected to one side of the filter plate, and the push rod is slidably installed in the middle position inside the mounting cylinder.

[0010] Furthermore, a sealing cap is fixedly connected to one end of the push rod. The sealing cap is threaded onto one end surface of the mounting cylinder. The push rod and sealing cap are installed together through the filter plate, which can be positioned and combined to support the filter plate. This facilitates separate installation and ensures high efficiency and stability.

[0011] Furthermore, a feed pipe is fixedly connected to the lower surface of the recycling cylinder, and the feed pipe is located inside the isolation cylinder.

[0012] Furthermore, a discharge pipe is fixedly connected to one end surface of the recycling cylinder, and the discharge pipe is located above the mounting cylinder.

[0013] Furthermore, a cover plate is threadedly installed on the upper surface of the recycling cylinder, and a pressure plate is fixedly connected to one side surface of the cover plate. The pressure plate is pressed tightly onto the upper surface of the isolation cylinder. By installing the feed pipe and the discharge pipe, and combining the cover plate with the pressure plate, the cylinder can be sealed after being positioned, which is conducive to stable feeding and discharging for filtration and recycling. It is safe, stable, and highly adaptable.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] (1) This solution uses an internal isolation cylinder to connect the recovery cylinder to position multiple installation cylinders, which can filter and recover the solvent, reduce the impact of waste gas, and combine the sealing plate through the connection hole and the filter plate for separate installation. After being combined and positioned, it can be used for uniform filtration, which is convenient for unified maintenance and replacement. It has high adaptability, improves precision and stability, and is easy to install and use.

[0016] (2) The filter plate can be installed by mounting the push rod and sealing cover, which can be combined and positioned to support the filter plate, facilitate separate installation, and is efficient and stable.

[0017] (3) By installing the feed pipe and the discharge pipe, and combining the cover plate with the pressure plate, the system can be sealed after being positioned, which is conducive to stable feeding and discharging for filtration and recycling. It is safe, stable, and highly adaptable. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal cross-section of the present invention;

[0020] Figure 3 This is a partial cross-sectional view of the sealing plate connection of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the mounting cylinder of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the filter plate of this utility model.

[0023] Explanation of the labels in the diagram:

[0024] 1. Recycling cylinder, 11. Isolation cylinder, 12. Installation cylinder, 13. Connecting groove, 14. Connecting hole, 15. Sliding rod, 16. Sealing plate, 17. Tightening spring, 18. Limiting block, 2. Filter plate, 21. Filter layer, 22. Push rod, 23. Sealing cover, 24. Cover plate, 25. Pressure plate, 26. Feed pipe, 27. Discharge pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1 , Figure 3 and Figure 4A waste solvent recovery mechanism for pesticide production includes a recovery cylinder 1. An isolation cylinder 11 is fixedly connected inside the recovery cylinder 1. An installation cylinder 12 is fixedly connected to the side of the isolation cylinder 11. One end of the installation cylinder 12 is fixedly connected to the outer surface of the recovery cylinder 1. A connecting groove 13 is provided in the middle of the installation cylinder 12. A connecting hole 14 is provided at one end of the installation cylinder 12. Sliding rods 15 are slidably installed on both sides of the connecting hole 14. A sealing plate 16 is fixedly connected to one end of the sliding rod 15, and the sealing plate 16 is tightly connected to one side surface of the connecting hole 14. A clamping spring 17 is slidably sleeved on the other end of the sliding rod 15, and the clamping spring 17 is tightly connected to the inner surface of the installation cylinder 12. A limit block 18 is fixedly connected to the end of the sliding rod 15. A sliding over-mounted... The filter plate 2 has a filter layer 21 fixedly attached to its surface. One side of the filter plate 2 is tightly connected to one end of the limiting block 18. After the filter plate 2 is slidably installed into the installation cylinder 12, the limiting block 18 and the sliding rod 15 can be pushed to separate the sealing plate 16 and the connecting hole 14, allowing the solvent to flow through. This allows it to connect with the connecting groove 13, facilitating the filtration of the waste gas solvent. The solvent can then be recovered from the recovery cylinder 1, making it highly adaptable. When replacing the filter plate 2, it can be directly pulled out for separation. At this time, the tightening spring 17 tightens the limiting block 18, pushing the sliding rod 15 and the sealing plate 16 to slide back to their original positions. This can press them against the surface of the connecting hole 14 for sealing and isolation, preventing leakage, improving stability, and making it convenient, efficient, and highly adaptable.

[0027] Please see Figure 2 and Figure 5 The connecting groove 13 is located at the gap between the recovery cylinder 1 and the isolation cylinder 11. The mounting cylinder 12 is circumferentially distributed at equal angles on the side of the isolation cylinder 11. A push rod 22 is fixedly connected to one side of the filter plate 2. The push rod 22 is slidably installed in the middle of the inside of the mounting cylinder 12. A sealing cover 23 is fixedly connected to one end of the push rod 22. The sealing cover 23 is threaded onto one end surface of the mounting cylinder 12. The push rod and sealing cover can be combined for installation and positioning, which is beneficial for supporting the filter plate and facilitating separate installation. It is efficient and stable. The push rod 22 is connected to the sealing cover 23, which can support the filter plate 2 to be inserted into the inside of the mounting cylinder 12. It is beneficial for separate installation and can also be evenly aligned for filtration, improving stability. It can also be disassembled and replaced separately, which is convenient for unified management and improves the use effect.

[0028] Please see Figure 1 and Figure 2The lower surface of the recovery cylinder 1 is fixedly connected to the feed pipe 26, which is located inside the isolation cylinder 11. One end surface of the recovery cylinder 1 is fixedly connected to the discharge pipe 27, which is located above the mounting cylinder 12. The upper surface of the recovery cylinder 1 is threaded with a cover plate 24, and one side surface of the cover plate 24 is fixedly connected to a pressure plate 25. The pressure plate 25 is pressed and connected to the upper surface of the isolation cylinder 11. By installing the feed pipe and the discharge pipe, and combining the cover plate with the pressure plate, they can be combined and positioned for sealing, which is conducive to stable feeding and discharging for filtration and recovery. It is safe, stable, and highly adaptable. Solvent can be introduced into the feed pipe 26, which will buffer and filter the waste gas inside the isolation cylinder 11. Then, it will flow back into the recovery cylinder 1 through the mounting cylinder 12 for storage. After accumulation, it can be discharged from the discharge pipe 27 for convenient processing and recovery. It is efficient and stable. By connecting the cover plate 24 to the pressure plate 25, the isolation cylinder 11 and the recovery cylinder 1 can be sealed separately, which is convenient and stable. They can also be opened separately for cleaning and maintenance, which is highly adaptable.

[0029] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A kind of waste gas solvent recovery mechanism for pesticide production, including recovery cylinder (1), the inside fixed connection of recovery cylinder (1) has isolation cylinder (11), the side fixed connection of isolation cylinder (11) has installation cylinder (12), it is characterized by: One end of the installation cylinder (12) is fixedly connected to the outer surface of the recovery cylinder (1), the middle position of the installation cylinder (12) is provided with a connecting groove (13), one end of the installation cylinder (12) is provided with a connecting hole (14), the both sides of the connecting hole (14) are slidably provided with a sliding rod (15), one end of the sliding rod (15) is fixedly connected with a sealing plate (16), the sealing plate (16) is tightly connected to the one side surface of the connecting hole (14), the other end of the sliding rod (15) is slidably sleeved with a tight spring (17), the tight spring (17) is tightly connected to the inner side surface of the installation cylinder (12), the end of the sliding rod (15) is fixedly connected with a limiting block (18), the inside of the installation cylinder (12) is slidably provided with a filter plate (2), the surface of the filter plate (2) is fixedly attached with a filter layer (21), the one side surface of the filter plate (2) is tightly connected to the one end surface of the limiting block (18).

2. The waste gas solvent recovery mechanism for pesticide production according to claim 1, characterized in that: The connecting groove (13) is located at the gap position between the recovery cylinder (1) and the isolation cylinder (11), and the installation cylinder (12) is equally angularly circumferentially distributed on the side surface of the isolation cylinder (11).

3. The waste gas solvent recovery mechanism for pesticide production according to claim 1, characterized in that: One side of the filter plate (2) is fixedly connected with a push rod (22), and the push rod (22) is slidably installed in the middle position of the inside of the installation cylinder (12).

4. The waste gas solvent recovery mechanism for pesticide production according to claim 3, characterized in that: One end of the push rod (22) is fixedly connected with a sealing cover (23), and the sealing cover (23) is threadedly installed on the one end surface of the installation cylinder (12).

5. The waste gas solvent recovery mechanism for pesticide production according to claim 1, characterized in that: The lower surface of the recovery cylinder (1) is fixedly connected with a feeding pipe (26), and the feeding pipe (26) is located inside the isolation cylinder (11).

6. The waste gas solvent recovery mechanism for pesticide production according to claim 1, characterized in that: One end surface of the recovery cylinder (1) is fixedly connected with a discharging pipe (27), and the discharging pipe (27) is located above the installation cylinder (12).

7. The waste gas solvent recovery mechanism for pesticide production according to claim 1, characterized in that: The upper surface of the recovery cylinder (1) is threadedly installed with a cover plate (24), one side surface of the cover plate (24) is fixedly connected with a pressing plate (25), and the pressing plate (25) is tightly connected to the upper surface of the isolation cylinder (11).

Citation Information

Patent Citations

  • Waste gas solvent recovery device and method for pesticide production

    CN118874146A