Powder conveying device for pesticide preparation

Abstract

The utility model belongs to the powder delivery technical field for pesticide preparation, and disclose a kind of powder delivery equipment for pesticide technical preparation, including: storage bin, screw feeding assembly, power device, conical discharge port, discharge port and pipeline anti-blocking component and so on structure, storage bin utilizes vacuum air extraction to create low oxygen environment, combine conical discharge port with vibration motor to guarantee raw material stable supply, screw feeding assembly is pushed powder under the driving of power device, to realize accurate control of delivery volume, pipeline anti-blocking component can quickly dredge blockage, ensure the continuity of conveying, discharge link sets up moisture-proof component and dustproof block, drying agent adsorbs moisture to prevent powder moisture absorption metamorphosis, annular filter screen intercepts dust, reduces environmental pollution and material waste, the equipment effectively solves the problems, such as low efficiency, easy to block, quality difficult control of traditional conveying equipment, with high-precision dosing, safety environmental protection characteristics, significantly improve the production quality and efficiency of pesticide technical preparation.

Description

Technical Field

[0001] This utility model relates to the field of powder conveying technology for pesticide preparation, specifically a powder conveying device for preparing pesticide technical. Background Technology

[0002] In the field of pesticide technical preparation, powder conveying is a crucial link in the production process, and the performance of the equipment directly affects production efficiency, product quality, and safety. With the rapid development of the pesticide industry, the requirements for the yield and quality of pesticide technical are becoming increasingly stringent. However, existing powder conveying equipment suffers from numerous technical bottlenecks, making it difficult to meet the demands of modern production.

[0003] From the perspective of conveying efficiency, traditional powder conveying equipment often suffers from frequent pipeline blockages due to structural design flaws. Because of the complex particle characteristics of pesticide technical powders, the powder easily accumulates at pipe bends and joints during conveying, causing interruptions. This blockage not only requires significant time for cleaning and maintenance but also severely impacts production progress, resulting in low overall production efficiency and making it difficult to meet the demands of large-scale continuous production.

[0004] Regarding quality assurance, some pesticide technical powders are highly hygroscopic and easily oxidized. Ordinary conveying equipment lacks specific protective measures and cannot effectively isolate the powder from external air and moisture. When the powder comes into contact with humid air or oxygen during transport, a chemical reaction can easily occur, leading to powder deterioration, reduced content of active ingredients, and ultimately affecting pesticide efficacy and product quality. Furthermore, the instability of powder quality can trigger a chain reaction in subsequent production stages, increasing production risks and costs.

[0005] Environmental and safety issues are equally important. During operation, some powder conveying equipment can generate large amounts of dust due to inadequate sealing or improper airflow control. This dust not only permeates the working environment, reducing visibility and contaminating production equipment, but can also be inhaled by operators, potentially causing respiratory illnesses with prolonged exposure and seriously threatening workers' health. Furthermore, leaked pesticide raw material dust pollutes the surrounding air, wastes materials, violates green production principles, and fails to meet environmental regulations, posing compliance risks to the company.

[0006] In conclusion, developing a new type of powder conveying equipment with multiple advantages such as high-efficiency conveying, quality assurance, and environmental safety has become an urgent need for the pesticide technical preparation industry to break through technical bottlenecks and achieve high-quality development. Utility Model Content

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this utility model provides a powder conveying device for the preparation of pesticide technical materials, thereby solving the problems mentioned in the background art regarding the impact of existing powder conveying devices on production efficiency and quality.

[0009] (II) Technical Solution

[0010] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a powder conveying device for the preparation of pesticide technical, comprising:

[0011] A storage silo, which is a cylindrical structure, is filled with powder raw materials for pesticide preparation.

[0012] A screw feeding assembly is provided below the storage silo. The screw feeding assembly includes an inclined conveying pipe and a feeding screw. The lower end of the conveying pipe is located directly below the storage silo. The feeding screw is located inside the storage silo and can rotate coaxially with respect to the storage silo.

[0013] A power unit is provided at the low horizontal end of the screw feeding assembly to drive the feeding screw to rotate.

[0014] A conical discharge port, wherein the conical discharge port is an inverted conical structure, the conical discharge port is located below the storage silo and communicates with the interior of the storage silo, and the feeder is provided at the tip of the conical discharge port to realize the transfer of powder raw materials from the storage silo to the screw feeding assembly;

[0015] The discharge port is located at the higher end of the conveying pipeline to achieve the lifting and conveying of powder raw materials;

[0016] A pipeline anti-clogging component includes a cleaning component and a blockage detector. The cleaning component is disposed on one side of the conveying pipeline, and the blockage detector is disposed at the discharge port. The blockage detector infers whether there is a blockage by detecting the output flow rate.

[0017] Preferably, the storage silo is provided with a sealing cover, the sealing cover is provided with a vacuum extraction port, the vacuum extraction port is connected to the inside of the storage silo, and a negative pressure device is provided on one side of the vacuum extraction port.

[0018] Preferably, the conveying pipe is provided with an upper pipe fixing point and a lower pipe fixing point at both ends. The conveying pipe is fixedly connected to the upper foundation through the upper pipe fixing point, and the conveying pipe is fixedly connected to the bottom foundation through the lower pipe fixing point. The feeding screw is rotatably connected to the upper pipe fixing point and the lower pipe fixing point.

[0019] Preferably, the power unit is either an electronically controlled servo motor or a variable frequency motor, and the power unit is fixedly installed on the bottom foundation. The output end of the power unit is coaxially and fixedly connected to the feeding screw.

[0020] Preferably, the feeder and the conveying pipe are provided with fitting pipe inlets, and a vibration motor is provided on one side of the feeder.

[0021] Preferably, the discharge port is a vertically downward discharge pipe, the discharge pipe is sealed to the conveying pipe, a moisture-proof component is provided below the discharge pipe, and a dustproof baffle is provided below the moisture-proof component.

[0022] Preferably, the moisture-proof component includes a drying chamber and a desiccant, the drying chamber being fitted onto the discharge pipe, and the drying chamber containing a desiccant.

[0023] Preferably, the dustproof barrier is a set of multiple annular filter screens, and the dustproof barrier is fixedly installed at the bottom of the desiccant corresponding to the discharge pipe.

[0024] Preferably, the cleaning component includes multiple sets of purge ports, each purge port is sealed to a delivery pipeline, the end of each purge port is connected to a high-pressure gas source, and each purge port is equipped with a solenoid valve.

[0025] (III) Beneficial Effects

[0026] Compared with the prior art, this utility model provides a powder conveying device for the preparation of pesticide technical, which has the following beneficial effects:

[0027] 1. This powder conveying equipment for the preparation of pesticide technical materials is equipped with a storage bin, a screw feeding assembly, a power unit, a conical discharge port, a discharge port, and a pipeline anti-clogging assembly. It conveys pesticide technical material powder through screw feeding, which has a fast conveying speed, accurate dosage, and can prevent powder from clogging the pipeline, thus greatly improving production quality and efficiency.

[0028] 2. Equipped with moisture-proof components and vacuum extraction ports, the storage silo is vacuumed to prevent the pesticide raw material powder from oxidizing, and the moisture-proof components prevent the pesticide raw material powder from absorbing moisture at the discharge port, effectively ensuring the quality of the pesticide raw material powder and significantly improving production quality.

[0029] 3. Equipped with a dustproof barrier, it can significantly reduce dust emissions, improve the working environment, protect the health of operators, prevent pesticide powder from polluting the air, reduce pesticide powder waste, improve dosage accuracy, and is environmentally friendly. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the screw feeding assembly and discharge port structure of this utility model;

[0032] Figure 3 This is a schematic diagram of the pipe anti-clogging component of this utility model;

[0033] Figure 4 This is a schematic diagram of the screw feeding assembly, moisture-proof assembly, and dustproof baffle structure of this utility model.

[0034] In the diagram: 1. Storage silo; 2. Screw feeding assembly; 3. Power unit; 4. Conical discharge port; 5. Discharge port; 6. Pipe anti-clogging assembly; 7. Sealing cap; 8. Vacuum extraction port; 9. Conveying pipe; 10. Upper pipe stop; 11. Lower pipe stop; 12. Feeding screw; 13. Feeder; 14. Pipe inlet; 15. Vibrating motor; 16. Discharge pipe; 17. Moisture-proof assembly; 18. Dustproof barrier; 19. Drying chamber; 20. Desiccant; 21. Purge port; 22. Solenoid valve. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Please see Figure 1-4 This utility model provides a technical solution:

[0037] A powder conveying device for the preparation of pesticide technical, comprising:

[0038] Storage bin 1 is a cylindrical structure and is filled with powder raw materials for pesticide preparation.

[0039] The screw feeding assembly 2 is located below the storage silo 1. The screw feeding assembly 2 includes an inclined conveying pipe 9 and a feeding screw 12. The lower end of the conveying pipe 9 is located directly below the storage silo 1. The feeding screw 12 is located inside the storage silo 1 and can rotate coaxially with respect to the storage silo 1. The rotation of the feeding screw 12 will push the extruded powder to move upward along the conveying pipe 9. By controlling the rotation of the feeding screw 12, the output powder quantity can be controlled, and the dosage accuracy is very high.

[0040] Power unit 3 is located at the low horizontal end of screw feeding assembly 2 and is used to drive the feeding screw 12 to rotate.

[0041] The conical discharge port 4 is an inverted conical structure. The conical discharge port 4 is located below the storage silo 1 and is connected to the inside of the storage silo 1. A feeder 13 is provided at the tip of the conical discharge port 4 to transfer the powder raw material from the storage silo 1 to the screw feeding assembly 2.

[0042] The discharge port 5 is located at the higher end of the conveying pipeline 9 to realize the lifting and conveying of powder raw materials.

[0043] The pipeline anti-clogging component 6 includes a cleaning component and a blockage detector. The cleaning component is located on one side of the conveying pipeline 9, and the blockage detector is located at the discharge port 5. The blockage detector infers whether there is a blockage by detecting the output flow rate. The blockage detector determines whether there is a blockage based on the detected powder velocity. When a blockage occurs, the output powder velocity will suddenly decrease. It is recommended to use an existing high-precision photoelectric rotation sensor, which calculates the flow rate by rotating the probe as the powder falls. This method has very high accuracy. Other devices can also be used.

[0044] Furthermore, a sealing cover 7 is provided on the storage silo 1, and a vacuum extraction port 8 is provided on the sealing cover 7. The vacuum extraction port 8 is connected to the inside of the storage silo 1, and a negative pressure device is provided on one side of the vacuum extraction port 8. Through the vacuum extraction port 8 and the negative pressure device, air can be extracted from the storage silo 1, which can effectively prevent the pesticide raw material powder from oxidizing and deteriorating.

[0045] Furthermore, the conveying pipe 9 is equipped with an upper pipe fixing point 10 and a lower pipe fixing point 11 at both ends. The conveying pipe 9 is fixedly connected to the upper foundation via the upper pipe fixing point 10, and the conveying pipe 9 is fixedly connected to the bottom foundation via the lower pipe fixing point 11. The feeding screw 12 is rotatably connected to the upper pipe fixing point 10 and the lower pipe fixing point 11. The upper pipe fixing point 10 and the lower pipe fixing point 11 not only serve as structural connections and fixation, but also seal both sides of the conveying pipe 9 to achieve powder extrusion feeding.

[0046] Furthermore, the power unit 3 is either an electronically controlled servo motor or a variable frequency motor. The power unit 3 is fixedly installed on the bottom foundation, and its output end is coaxially and fixedly connected to the feeding screw 12. Both the electronically controlled servo motor and the variable frequency motor can control the rotation speed. The servo controller or variable frequency control component is provided by the motor supplier. The variable frequency motor has a smaller control range but lower cost, while the electronically controlled servo motor has a larger control range but higher cost.

[0047] Furthermore, the feeder 13 and the conveying pipe 9 are provided with fitting pipe inlets 14, and a vibrating motor 15 is provided on one side of the feeder 13. Compared with the power unit 3, the vibrating motor 15 cannot be fitted with a protective shell. The vibrating motor 15 generates vibration, and using a protective shell would easily cause it to loosen and be damaged. The vibration energy of the vibrating motor 15 is transmitted to the powder in the feeder 13 and the conical discharge port 4, which facilitates the powder to slide into the conveying pipe 9.

[0048] Furthermore, the discharge port 5 is a vertically downward discharge pipe 16, which is sealed to the conveying pipe 9. A moisture-proof component 17 is installed below the discharge pipe 16, and a dustproof baffle 18 is installed below the moisture-proof component 17.

[0049] Furthermore, the moisture-proof component 17 includes a drying chamber 19 and a desiccant 20. The drying chamber 19 is fitted onto the discharge pipe 16, and the desiccant 20 is disposed inside the drying chamber 19. The desiccant 20 can absorb moisture from the air and prevent the pesticide powder from absorbing water and deteriorating.

[0050] Furthermore, the dustproof baffle 18 consists of multiple sets of annular filter screens, and is fixedly installed at the bottom of the desiccant 20 corresponding to the discharge pipe 16. The dustproof baffle 18 can intercept diffused powder and reduce dust pollution.

[0051] Furthermore, the cleaning assembly includes multiple sets of purge ports 21, each of which is sealed to the conveying pipeline 9. A high-pressure gas source is connected to the end of each purge port 21, and a solenoid valve 22 is installed on each purge port 21. When pipeline blockage is detected, the solenoid valve 22 is opened to allow high-pressure gas to enter the conveying pipeline 9, thereby clearing the pipeline and resolving the powder blockage problem.

[0052] Structural Description:

[0053] Storage bin 1: A cylindrical structure used to fill and store powder raw materials for pesticide preparation;

[0054] Screw feeding assembly 2: Located below the storage silo, it includes an inclined conveying pipe 9 and a feeding screw 12, used to push and extrude powder to achieve lifting and conveying;

[0055] Power unit 3: Installed at the low horizontal end of the screw feeding assembly, it is an electric servo motor or frequency converter motor used to drive the feeding screw to rotate;

[0056] Conical discharge port 4: An inverted conical structure is set below the storage bin and connected to its interior. A feeder 13 is located at the tip of the cone to transfer powder from the storage bin to the screw feeding assembly.

[0057] Discharge port 5: Located at the higher end of the conveying pipeline, it is a vertically downward discharge pipe 16 used to lift and discharge powder raw materials;

[0058] Pipeline anti-clogging component 6: includes a cleaning component installed on one side of the conveying pipeline and a blockage detector at the discharge port, used to detect and clear pipeline blockages;

[0059] Sealing cover 7: Covers the storage silo to isolate the storage silo from the outside world;

[0060] Vacuum extraction port 8: Located on the sealing cover and connected to the inside of the storage silo, with a negative pressure device on one side for removing air from the storage silo;

[0061] Conveying pipe 9: It is inclined, with the lower end located directly below the storage silo and in contact with the feed inlet 14 of the feeder, for conveying powder;

[0062] Pipeline fixed 10: Set at both ends of the conveying pipeline for fixed connection with the upper foundation and rotatable connection with the feeding screw;

[0063] Pipeline 11: Located at both ends of the conveying pipeline, used for fixed connection with the bottom foundation and rotatable connection with the feeding screw;

[0064] Feeding screw 12: It is installed in the storage silo and can rotate coaxially with the storage silo. It passes through the conveying pipe and is rotatably connected to the upper and lower fixed points of the pipe. It is used to push and extrude powder.

[0065] Feeder 13: Located at the tip of the conical discharge port, it fits into the inlet 14 of the conveying pipeline and is used to control the powder entering the screw feeding assembly;

[0066] Pipeline inlet 14: It is set on the feeder and the conveying pipeline and is attached to each other, for powder to enter the conveying pipeline from the feeder;

[0067] Vibration motor 15: Located on one side of the feeder, it is used to generate vibration and transmit it to the powder in the feeder and the conical discharge port to enhance the powder flowability;

[0068] Discharge pipe 16: Vertically downward, sealed connection with the conveying pipe, used to discharge powder raw materials;

[0069] Moisture-proof component 17: Located below the discharge pipe, it includes a drying chamber 19 sleeved on the discharge pipe and a desiccant 20 inside the chamber, used to absorb moisture and prevent the powder from absorbing moisture;

[0070] Dustproof baffle 18: Multiple sets of ring-shaped filters are fixedly installed at the bottom of the desiccant corresponding to the discharge pipe to intercept diffused powder and reduce dust pollution;

[0071] Drying chamber 19: Installed on the discharge pipe, used to contain desiccant 20 to form a drying environment;

[0072] Desiccant 20: Placed inside the drying chamber, it is used to absorb moisture from the air and prevent the powder from absorbing water and deteriorating.

[0073] Purge port 21: Multiple sets, sealed connection to the conveying pipeline, with the end connected to a high-pressure gas source and equipped with a solenoid valve 22, used to introduce high-pressure gas to clear the pipeline;

[0074] Solenoid valve 22: Located on the purge port, it is used to control the flow of high-pressure gas to achieve pipeline unblocking.

[0075] Working Principle: The storage silo 1, as the core component for material storage, adopts a cylindrical structure design. This structure allows for uniform distribution of powder raw materials within the silo, reducing dead zones and accumulation. The pesticide raw material powder filled inside the silo is isolated from the outside environment by a sealing cover 7. The vacuum extraction port 8 on the sealing cover 7 is connected to a negative pressure device, allowing for vacuuming of the silo. When the negative pressure device is activated, air is gradually extracted from the silo, creating a low-oxygen environment. This effectively prevents easily oxidized pesticide raw material powder from reacting with oxygen, thus ensuring the chemical stability of the powder. During the material conveying preparation stage, the conical discharge port 4 below the storage silo 1 plays a crucial role. The inverted conical structure design allows the powder to naturally gather towards the tip of the cone under gravity. The feeder 13 at the tip of the cone serves as the control gate for material entry into the conveying system. The vibrating motor 15 on one side of the feeder 13 generates high-frequency vibration. This vibration is transmitted through the feeder 13 to the powder in the conical discharge port 4, reducing the friction between powder particles, increasing flowability, and facilitating the smooth entry of the powder into the screw feeding assembly 2, effectively avoiding bridging and blockage at the feed port. The screw feeding assembly 2 is the core power unit of the entire conveying equipment, and its working principle is based on screw propulsion technology. The inclined conveying pipe 9 has its lower end located directly below the storage silo 1, closely fitting the feed port 14 of the feeder 13, while the higher end has the discharge port 5. The feeding screw 12 runs through the entire conveying pipe 9 and is rotatably connected to the conveying pipe 9 through the upper fixed end 10 and the lower fixed end 11. When the power unit 3 drives the feeding screw 12 to rotate, the screw's spiral blades move relative to the inner wall of the conveying pipe 9, and the powder moves upward along the inclined direction of the conveying pipe 9 under the push of the spiral blades. This conveying method has the following characteristics: First, by controlling the rotation speed of the power unit 3, the rotation speed of the feeding screw 12 can be precisely controlled, thereby achieving precise adjustment of the powder conveying amount and achieving a high level of dosage accuracy. Second, the continuous rotation of the screw ensures that the powder maintains a stable flow state during the conveying process, avoiding the pipeline pressure fluctuations and blockage risks that may occur with pulse conveying. The power unit 3 can be equipped with either an electric servo motor or a frequency converter motor according to actual production needs. The electric servo motor has advantages such as high control accuracy, fast response speed, and wide speed range, enabling precise control of the rotation speed of the feeding screw 12, and is suitable for production scenarios with extremely high dosage requirements. The frequency converter motor has the advantages of low cost and low energy consumption. By adjusting the power supply frequency, the motor speed can be adjusted, effectively reducing equipment operating costs while meeting certain accuracy requirements. The pipeline anti-blockage component 6 is a key part to ensure the continuous and stable operation of the equipment, consisting of a cleaning component and a blockage detector working together. The blockage detector is installed at the discharge port 5 and uses a high-precision photoelectric rotation sensor to monitor the falling speed of the powder in real time.When the powder flows normally within the conveying pipe 9, its falling speed is relatively stable, and the sensor outputs a stable electrical signal. Once a blockage occurs, the powder's falling speed suddenly decreases, and the sensor, detecting the signal change, immediately transmits the signal to the control system. The cleaning component's purge ports 21 are distributed along one side of the conveying pipe 9 and connected to a high-pressure gas source via solenoid valves 22. When the control system receives a blockage signal, it quickly triggers the corresponding solenoid valve 22 to open, and high-pressure gas instantly rushes into the conveying pipe 9 to purge and clear the blockage. This high-pressure purging method is fast and efficient, capable of removing accumulated material from the pipe and restoring normal conveying in a short time. After the material is conveyed to the discharge port 5, it is discharged through a vertically downward discharge pipe 16. Moisture-proof components 17 and dustproof barriers 18 installed below the discharge pipe 16 further ensure the quality of the powder and the safety of the production environment. The drying chamber 19 of the moisture-proof component 17 is fitted outside the discharge pipe 16, and the chamber is filled with desiccant 20. When the powder passes through the discharge pipe 16, the desiccant 20 can absorb moisture from the surrounding air, creating a dry environment and effectively preventing the hygroscopic pesticide powder from absorbing moisture and clumping and deteriorating during the discharge process. The dust baffle 18 adopts a multi-ring filter structure, which is fixedly installed at the bottom of the desiccant 20 corresponding to the discharge pipe 16. When the powder is discharged from the discharge pipe 16, some diffusion and dust may occur. The ring filter can effectively intercept these diffused powder particles, causing dust to deposit on the filter surface, thereby reducing the emission of dust into the working environment. This design not only improves the air quality in the workshop and protects the health of operators, but also reduces the waste of pesticide powder and improves the utilization rate of raw materials.

[0076] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder conveying device for the preparation of pesticide technical, characterized in that, include: Storage bin (1), the storage bin (1) is a cylindrical structure, and the storage bin (1) is filled with powder raw materials for pesticide preparation; The screw feeding assembly (2) is located below the storage bin (1). The screw feeding assembly (2) includes an inclined conveying pipe (9) and a feeding screw (12). The lower end of the conveying pipe (9) is located directly below the storage bin (1). The feeding screw (12) is located inside the storage bin (1) and can rotate coaxially with respect to the storage bin (1). Power unit (3), the power unit (3) is located at the low horizontal end of the screw feeding assembly (2) and is used to drive the feeding screw (12) to rotate; A conical discharge port (4) is an inverted conical structure. The conical discharge port (4) is located below the storage bin (1) and communicates with the inside of the storage bin (1). A feeder (13) is provided at the tip of the conical discharge port (4) to transfer the powder raw material from the storage bin (1) to the screw feeding assembly (2). The discharge port (5) is located at the higher end of the conveying pipe (9) to realize the lifting and conveying of powder raw materials; Pipeline anti-blocking component (6), the pipeline anti-blocking component (6) includes a cleaning component and a blockage detector, the cleaning component is disposed on one side of the conveying pipeline (9), and the blockage detector is disposed at the discharge port (5), the blockage detector infers whether there is a blockage by detecting the output flow rate.

2. The powder conveying equipment for preparing pesticide technical material according to claim 1, characterized in that: The storage silo (1) is provided with a sealing cover (7), and the sealing cover (7) is provided with a vacuum extraction port (8). The vacuum extraction port (8) is connected to the inside of the storage silo (1), and a negative pressure device is provided on one side of the vacuum extraction port (8).

3. The powder conveying equipment for preparing pesticide technical material according to claim 1, characterized in that: The conveying pipe (9) is provided with an upper pipe fixed (10) and a lower pipe fixed (11) at both ends. The conveying pipe (9) is fixedly connected to the upper foundation through the upper pipe fixed (10) and the conveying pipe (9) is fixedly connected to the bottom foundation through the lower pipe fixed (11). The feeding screw (12) is rotatably connected to the upper pipe fixed (10) and the lower pipe fixed (11).

4. A powder conveying device for preparing pesticide technical material according to claim 1, characterized in that: The power device (3) is either an electric servo motor or a variable frequency motor. The power device (3) is fixedly installed on the bottom foundation. The output end of the power device (3) is coaxially and fixedly connected to the feeding screw (12).

5. A powder conveying device for preparing pesticide technical according to claim 1, characterized in that: The feeder (13) and the conveying pipe (9) are provided with fitting pipe inlets (14), and a vibration motor (15) is provided on one side of the feeder (13).

6. A powder conveying device for preparing pesticide technical according to claim 1, characterized in that: The discharge port (5) is a vertically downward discharge pipe (16). The discharge pipe (16) is sealed to the conveying pipe (9). A moisture-proof component (17) is provided below the discharge pipe (16), and a dustproof baffle (18) is provided below the moisture-proof component (17).

7. A powder conveying device for preparing pesticide technical according to claim 6, characterized in that: The moisture-proof component (17) includes a drying chamber (19) and a desiccant (20). The drying chamber (19) is sleeved on the discharge pipe (16), and the desiccant (20) is placed inside the drying chamber (19).

8. A powder conveying device for preparing pesticide technical material according to claim 7, characterized in that: The dustproof baffle (18) is a set of multiple ring-shaped filter screens, and the dustproof baffle (18) is fixedly installed at the bottom of the desiccant (20) at the corresponding discharge pipe (16).

9. A powder conveying device for preparing pesticide technical material according to claim 1, characterized in that: The cleaning assembly includes multiple sets of purge ports (21), each of which is sealed to the conveying pipe (9). The end of each purge port (21) is connected to a high-pressure gas source, and each purge port (21) is equipped with a solenoid valve (22).

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