A continuous extraction apparatus for herbicide production

The dual-path design of the main and secondary pipelines and the convenient removal and installation of the filter screen solve the problem of production interruption caused by filter screen clogging, realize the rapid maintenance and continuous operation of the equipment, improve production efficiency and extraction rate, and ensure the purity and stability of the product.

CN122124498APending Publication Date: 2026-06-02SHANDONG KEXIN BIOCHEM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANDONG KEXIN BIOCHEM
Filing Date
2026-05-06
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing continuous extraction equipment requires shutdown and disassembly for cleaning when the filter screen becomes clogged, causing production line interruptions and affecting production efficiency and product stability.

Method used

It adopts a dual-path parallel design with main and secondary pipelines, and achieves seamless feeding through valve switching. It is also equipped with a convenient filter screen disassembly and assembly structure to ensure continuous delivery of raw material liquid. At the same time, the mixing uniformity and mass transfer efficiency are improved by multi-directional stirring of the mixing component and uniform addition of extractant in the extraction component.

Benefits of technology

This enables rapid equipment maintenance and continuous operation, avoids production interruptions, improves production efficiency and extraction rate, and ensures product purity and stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN122124498A_ABST
Patent Text Reader

Abstract

This invention provides a continuous extraction device for herbicide production, relating to the technical field of herbicide production equipment. It includes an extraction tank and a pretreatment component. The top of the extraction tank is equipped with a pretreatment cylinder, with a raw material inlet and a cleaning agent outlet fixedly connected to both ends of the top of the pretreatment cylinder. A pretreatment component is located between the extraction tank and the pretreatment cylinder. The pretreatment component includes a main pipeline fixedly connected between the extraction tank and the pretreatment cylinder. Through the pretreatment component and the parallel design of the main and secondary pipelines, when the filter screen becomes clogged due to impurities, the first valve can be quickly closed and the second valve opened, switching the feeding channel and ensuring a continuous supply of pretreated raw material liquid to the extraction tank. This avoids production line interruptions that could lead to decreased production efficiency. Furthermore, the convenient disassembly and assembly method allows for quick disassembly and cleaning of the filter screen, significantly shortening maintenance time and enabling the equipment to quickly return to normal operation.
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Description

Technical Field

[0001] This invention relates to the field of herbicide production equipment technology, and in particular to a continuous extraction device for herbicide production. Background Technology

[0002] In the industrial production process of herbicides, extraction is an indispensable and crucial separation and purification process, playing a decisive role in product quality and subsequent production efficiency. Its core purpose is to deeply separate the raw material liquid obtained after the chemical reaction, precisely extracting the effective active ingredients of the herbicide while efficiently removing various impurities, byproducts, and salts from the raw material liquid. This significantly improves the purity and activity of the herbicide product, laying a solid foundation for subsequent refining, drying, and molding processes, ensuring the efficacy stability and safety of the final herbicide product, and reducing the processing difficulty and production costs of subsequent processes. Currently, extraction equipment typically requires filtering impurities and residues from the raw material before operation to prevent impurities from interfering with the mass transfer effect of subsequent extraction. However, existing continuous extraction equipment only has a simple filter screen at the front end, with a simple structure and inconvenient maintenance. When the filter screen is clogged by impurities, the machine must be stopped for disassembly and cleaning, forcing the production line to be interrupted and unable to maintain continuous and stable operation. This not only significantly reduces production efficiency but also affects the continuity of the process and the stability of product output. Summary of the Invention

[0003] In view of this, the present invention provides a continuous extraction device for herbicide production. Through the pretreatment component and the parallel design of the main and secondary pipelines, when the filter screen in the main pipeline becomes clogged with impurities, the first valve of the main pipeline can be quickly closed and the second valve of the secondary pipeline opened, achieving seamless switching of the feeding channels. This ensures a continuous supply of pretreated raw material liquid to the extraction tank, avoiding production efficiency losses caused by production line interruptions. Furthermore, the convenient disassembly and assembly method allows for quick removal and cleaning of the filter screen, significantly shortening maintenance time and enabling the equipment to quickly return to normal operation.

[0004] This invention provides a continuous extraction device for herbicide production, specifically comprising: an extraction tank and a pretreatment component; The extraction tank is equipped with a pretreatment cylinder at its top. The top two ends of the pretreatment cylinder are fixedly connected to a raw material inlet and a purification agent outlet. A pretreatment assembly is provided between the extraction tank and the pretreatment cylinder. The pretreatment assembly includes: Main pipeline: It is fixedly connected between the extraction tank and the pretreatment cylinder. A first valve is installed on the main pipeline. A secondary pipeline is provided on one side of the main pipeline. A second valve is provided at one end of the secondary pipeline. Fixed frame: Fixedly connected to the middle of the main pipe. The inner side wall of the fixed frame is fixedly connected to the positioning slot. A filter screen is provided between the positioning slots. One end of the filter screen is fixedly connected to the connecting top plate. A handle is fixedly connected to the middle of the connecting top plate. Connecting side plates are fixedly connected to both sides of the connecting top plate. Inserted wedges are fixedly connected to the ends of the connecting side plates. Connecting side frame: It is fixedly connected to both sides of the fixed frame. The connecting side frame has a mating groove inside, a fixing rod is provided in the mating groove, and a spring is provided on the outside of the fixing rod. Movable groove: Located on the outer side of the connecting side frame, a movable slide frame is slidably installed in the movable groove. A through hole is opened on the inner side of the movable slide frame, and a movable groove is opened inside the movable slide frame. The fixed rod passes through the through hole and is fixedly connected to the limiting protrusion in the movable groove. A locking wedge is fixedly connected on the movable slide frame, and the locking wedge and the insert wedge engage with each other.

[0005] Furthermore, the pretreatment cylinder is equipped with a mixing assembly inside, which includes a deceleration frame, a rotating shaft, a first stirring rod, and a first bevel gear. The deceleration frame is fixedly connected to one end of the pretreatment cylinder, and a rotating shaft is rotatably installed between one side of the deceleration frame and one end of the pretreatment cylinder. The first stirring rod is fixedly connected to the outside of the rotating shaft, and the first bevel gear is fixedly connected to one end of the rotating shaft.

[0006] Furthermore, rotating sleeves are provided at both ends of the outer side of the rotating shaft, and a fixed convex frame is fixedly connected between the rotating sleeves. A second stirring rod is fixedly connected to the inner side of the fixed convex frame, and a second bevel gear is fixedly connected to the outer side of the rotating sleeve.

[0007] Furthermore, a first motor is fixedly installed on the top of the deceleration frame, and a third bevel gear is fixedly connected to the drive end of the first motor. The third bevel gear meshes with the first bevel gear and the second bevel gear.

[0008] Furthermore, the extraction tank is equipped with an extraction assembly, which includes a fixed recess and an extraction material tube. Fixed recesses are fixedly connected to both sides of the extraction tank, and a stirring shaft is rotatably installed between the fixed recesses. Stirring blades are fixedly connected to the outer side of the stirring shaft, and one end of the stirring shaft is fixedly connected to the drive end of the outer second motor. At the same time, an extraction material tube is fixedly connected to one side of the top of the extraction tank.

[0009] Furthermore, a connecting hopper is fixedly connected to the top of the extraction tube, and a retaining ring groove is formed on the inner side wall of the connecting hopper.

[0010] Furthermore, the connecting bucket has a rotating disk inside, a fixing protrusion ring is fixedly connected to the outside of the rotating disk, an alignment hole is opened on the rotating disk, and a drive shaft is fixedly connected to the top center of the rotating disk.

[0011] Furthermore, the top of the rotating disk is provided with a fixed carrier, the bottom of the fixed carrier is provided with a rotating slot, a guide pipe is fixedly connected to the outside of the fixed carrier, a hopper is fixedly connected to the top of the guide pipe, and a discharge hole is provided at the bottom of the hopper, with the discharge hole aligned with the guide pipe.

[0012] Furthermore, a cone-shaped hopper is fixedly connected inside the hopper, and a third motor is installed inside the cone-shaped hopper. The drive end of the third motor passes through the fixed carrier and is fixedly connected to the drive shaft column.

[0013] Furthermore, a discharge pipe is fixedly connected to the bottom of the extraction tank, a third valve is provided on the discharge pipe, and a pump body is fixedly installed on one side of the extraction tank. One end of the pump body is connected to the inside of the extraction tank through an extraction pipe, and the other end of the pump body is fixedly connected to a discharge pipe.

[0014] The continuous extraction equipment for herbicide production provided by this invention has the following beneficial effects: By setting up the pretreatment components and adopting a dual-path parallel design of main and secondary pipelines, when the filter screen in the main pipeline becomes clogged due to impurities, the first valve of the main pipeline can be quickly closed and the second valve of the secondary pipeline can be opened, achieving seamless switching of the feeding channels. This ensures that the pretreated raw material liquid is continuously delivered to the extraction tank, avoiding the decline in production efficiency caused by production line interruption. At the same time, the convenient disassembly and assembly method allows for quick removal and cleaning of the filter screen, significantly shortening maintenance time and enabling the equipment to quickly return to normal operation.

[0015] By setting up the mixing components, the first motor drives the third bevel gear to rotate. The meshing relationship between the third bevel gear and the first and second bevel gears simultaneously enables the rotating shaft and the rotating sleeve to rotate synchronously in opposite directions. This, in turn, drives the first and second stirring rods to rotate in opposite directions, forming a multi-directional stirring effect. This breaks the limitation of insufficient mixing in the traditional single stirring method, allowing the raw material liquid and the impurity removal agent in the pretreatment cylinder to come into contact in all directions, further improving the uniformity of mixing.

[0016] By setting up the extraction component, the rotating disk is driven by a third motor to rotate intermittently, so that the alignment holes on the rotating disk are periodically aligned with the outlet of the guide tube, achieving uniform dripping of the extractant. This changes the problem of excessively high local concentration and insufficient mixing caused by the traditional one-time addition of extractant. Combined with the continuous stirring of the stirring blades, the extractant and the pretreated raw material liquid gradually come into contact and mix thoroughly, which greatly improves the mass transfer efficiency between the two phases. This ensures that the effective components of the herbicide can be fully transferred from the raw material liquid to the extractant, significantly improving the extraction rate and product purity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 A schematic diagram of the overall structure according to the present invention is shown; Figure 2 A schematic diagram of the pretreatment component structure according to the present invention is shown; Figure 3 A schematic diagram of the partial component breakdown structure in the preprocessing component according to the present invention is shown; Figure 4 The invention is shown Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 A schematic diagram of the hybrid component structure according to the present invention is shown; Figure 6 A schematic diagram of the structure of some components in the hybrid assembly according to the present invention is shown; Figure 7 A schematic diagram of the extraction component structure according to the present invention is shown; Figure 8 A schematic diagram of the structure of some components in the extraction assembly according to the present invention is shown; List of reference numerals 1. Extraction tank; 101. Pretreatment cylinder; 1011. Raw material inlet; 1012. Impurity removal agent inlet; 2. Preprocessing components; 201. Main pipeline; 2011. First valve; 2012. Secondary pipeline; 2013. Second valve; 202. Fixed frame; 2021. Positioning slot; 2022. Filter screen; 2023. Connecting top plate; 2024. Handle; 2025. Connecting side plate; 2026. Inserted wedge block; 203. Connecting side frame; 2031. Connecting groove; 2032. Fixing rod; 2033. Spring; 204. Moving groove; 2041. Moving slide frame; 2042. Perforation; 2043. Limiting protrusion; 2044. Movable groove; 2045. Locking wedge; 3. Hybrid components; 301. Reduction frame; 3011. Rotating shaft; 3012. First stirring rod; 3013. First bevel gear; 302. Rotating sleeve; 3021. Fixed convex frame; 3022. Second stirring rod; 3023. Second bevel gear; 303, First motor; 3031, Third bevel gear; 4. Extraction components; 401. Fixed concave block; 4011. Stirring shaft; 4012. Stirring blades; 4013. Second motor; 402, Extraction feed pipe; 4021, Connecting hopper; 4022, Rotary ring groove; 403, Rotating disk; 4031, Fixed convex ring; 4032, Alignment hole; 4033, Drive shaft column; 404, Fixed carrier; 4041, Rotating slot; 4042, Guide pipe; 4043, Hopper; 4044, Conical hopper; 4045, Discharge hole; 4046, Third motor; 405. Discharge pipe; 4051. Third valve; 406. Pump body; 4061. Extraction pipe; 4062. Discharge pipe. Detailed Implementation

[0020] Example 1: Please refer to Figures 1 to 8 : This invention proposes a continuous extraction device for herbicide production, comprising: an extraction tank 1 and a pretreatment component 2; The top of the extraction tank 1 is provided with a pretreatment cylinder 101. The top two ends of the pretreatment cylinder 101 are fixedly connected to a raw material inlet 1011 and a purification agent inlet 1012. A pretreatment assembly 2 is provided between the extraction tank 1 and the pretreatment cylinder 101. The pretreatment assembly 2 includes: Main pipe 201: Fixedly connected between extraction tank 1 and pretreatment cylinder 101. A first valve 2011 is installed on the main pipe 201. A secondary pipe 2012 is provided on one side of the main pipe 201. A second valve 2013 is provided at one end of the secondary pipe 2012. Fixed frame 202: Fixedly connected to the middle of the main pipe 201. The inner side wall of the fixed frame 202 is fixedly connected to the positioning slot 2021. The positioning slot 2021 is provided with a filter screen 2022. One end of the filter screen 2022 is fixedly connected to the connecting top plate 2023. The middle of the connecting top plate 2023 is fixedly connected to the handle 2024. The two sides of the connecting top plate 2023 are fixedly connected to the connecting side plates 2025. The end of the connecting side plate 2025 is fixedly connected to the insert wedge block 2026. Connecting side frame 203: It is fixedly connected to both sides of the fixed frame 202. The connecting side frame 203 has a mating groove 2031 inside. A fixing rod 2032 is provided in the mating groove 2031. A spring 2033 is provided on the outside of the fixing rod 2032. Movable groove 204: Located on the outer side of the connecting side frame 203, a movable slide frame 2041 is slidably installed in the movable groove 204. A through hole 2042 is opened on the inner side of the movable slide frame 2041, and a movable groove 2044 is opened inside the movable slide frame 2041. The fixed rod 2032 passes through the through hole 2042 and is fixedly connected to the limiting protrusion 2043 in the movable groove 2044. A locking wedge 2045 is fixedly connected on the movable slide frame 2041, and the locking wedge 2045 and the insert wedge 2026 engage with each other.

[0021] After the raw materials and impurity removal agent are initially mixed, the first valve 2011 on the main pipeline 201 is opened, allowing the mixed raw materials to flow through the main pipeline 201. The raw material liquid passes through the filter screen 2022 in the fixed frame 202 within the main pipeline 201 to filter solid impurities. The filtered raw material liquid smoothly enters the extraction tank 1, achieving pretreatment before extraction. When the filter screen 2022 becomes clogged due to impurity accumulation, simply close the first valve 2011 and open the second valve 2013 to switch to the secondary pipeline 2012 for feeding, ensuring a continuous supply of raw material liquid to the extraction tank 1 without interrupting production. Subsequently, the operator presses the movable sliding frame 2041 to move it within the movable groove 204, causing it to disengage the locking wedge 2045 from the insert wedge 2026. Then, the operator can grasp the handle 2024 to pull out the filter screen 2022 for cleaning and maintenance. After maintenance... After installation, the filter screen 2022 is inserted back into the fixed frame 202 through the positioning slot 2021. At this time, the insert wedges 2026 on both sides of the connecting top plate 2023 are inserted into the docking slot 2031. During the movement of the insert wedges 2026, they press the locking wedges 2045, causing the locking wedges 2045 to synchronously drive the moving slide frame 2041 to press the spring 2033 on the fixed rod 2032. When the filter screen 2022 is installed in place, the insert wedges 2026 can no longer press the locking wedges 2045, causing the spring 2033 to lose pressure. Then, under the reaction force of the spring 2033, the moving slide frame 2041 is pushed to move. The moving slide frame 2041 then drives the locking wedges 2045 and the insert wedges 2026 to achieve self-locking, thereby completing the installation and fixing of the filter screen 2022. Then the conveying channel can be switched back to the main pipe 201.

[0022] Example 2: Based on Example 1, wherein, as Figure 5 and Figure 6 As shown, the pretreatment cylinder 101 is equipped with a mixing component 3. The mixing component 3 includes a deceleration frame 301, a rotating shaft 3011, a first stirring rod 3012, and a first bevel gear 3013. The deceleration frame 301 is fixedly connected to one end of the pretreatment cylinder 101. The rotating shaft 3011 is rotatably mounted between one side of the deceleration frame 301 and one end of the interior of the pretreatment cylinder 101. The first stirring rod 3012 is fixedly connected to the outside of the rotating shaft 3011, and the first bevel gear 3013 is fixedly connected to one end of the rotating shaft 3011.

[0023] Rotating sleeves 302 are provided at both ends of the outer side of the rotating shaft 3011. A fixed protrusion 3021 is fixedly connected between the rotating sleeves 302. A second stirring rod 3022 is fixedly connected to the inner side of the fixed protrusion 3021. At the same time, a second bevel gear 3023 is fixedly connected to the outer side of the rotating sleeve 302.

[0024] A first motor 303 is fixedly installed on the top of the deceleration frame 301. A third bevel gear 3031 is fixedly connected to the drive end of the first motor 303. The third bevel gear 3031 meshes with the first bevel gear 3013 and the second bevel gear 3023.

[0025] The material to be mixed is fed into the raw material inlet 1011 and the impurity removal agent inlet 1012. Then, the first motor 303 is started to drive the third bevel gear 3031 to rotate. Since the third bevel gear 3031 meshes with the first bevel gear 3013 on the rotating shaft 3011 and the second bevel gear 3023 on the rotating sleeve 302, the first bevel gear 3013 and the second bevel gear 3023 are driven to rotate synchronously in opposite directions. This causes the first stirring rod 3012 and the second stirring rod 3021 to rotate in opposite directions through the rotating shaft 3011 and the rotating sleeve 302, respectively. This achieves all-round stirring of the raw material liquid and the impurity removal agent, so that the impurity removal agent can fully contact and react with the impurities in the raw material liquid, complete the efficient impurity removal, and lay the foundation for the subsequent extraction process.

[0026] Example 3: Based on Examples 1 and 2, wherein, as shown in Example 3... Figure 7 and Figure 8 As shown, the extraction tank 1 is equipped with an extraction assembly 4. The extraction assembly 4 includes a fixing recess 401 and an extraction material pipe 402. The fixing recesses 401 are fixedly connected to both sides of the extraction tank 1. A stirring shaft 4011 is rotatably installed between the fixing recesses 401. A stirring blade 4012 is fixedly connected to the outside of the stirring shaft 4011. One end of the stirring shaft 4011 is fixedly connected to the drive end of the second motor 4013 on the outside. At the same time, the extraction material pipe 402 is fixedly connected to one side of the top of the extraction tank 1.

[0027] The top of the extraction tube 402 is fixedly connected to a connecting hopper 4021, and the inner side wall of the connecting hopper 4021 is provided with a locking ring groove 4022.

[0028] The connecting bucket 4021 has a rotating disk 403 inside, and a fixing protrusion ring 4031 is fixedly connected to the outside of the rotating disk 403. An alignment hole 4032 is opened on the rotating disk 403, and a drive shaft column 4033 is fixedly connected to the top center of the rotating disk 403.

[0029] The top of the rotating disk 403 is provided with a fixed carrier 404, the bottom of the fixed carrier 404 is provided with a rotating slot 4041, the outer side of the fixed carrier 404 is fixedly connected with a guide pipe 4042, the top of the guide pipe 4042 is fixedly connected with a hopper 4043, the bottom of the hopper 4043 is provided with a discharge hole 4045, and the discharge hole 4045 is aligned with the guide pipe 4042.

[0030] The hopper 4043 is fixedly connected to the inside of the cone hopper 4044. The cone hopper 4044 is equipped with a third motor 4046. The drive end of the third motor 4046 passes through the fixed carrier 404 and is fixedly connected to the drive shaft column 4033.

[0031] A discharge pipe 405 is fixedly connected to the bottom of the extraction tank 1. A third valve 4051 is provided on the discharge pipe 405. A pump body 406 is fixedly installed on one side of the extraction tank 1. One end of the pump body 406 is connected to the inside of the extraction tank 1 through an extraction pipe 4061. The other end of the pump body 406 is fixedly connected to a discharge pipe 4062.

[0032] The pretreated raw material liquid enters the extraction tank 1. At this time, the second motor 4013 is started to drive the stirring shaft 4011 to rotate. The stirring blades 4012 on the outside of the stirring shaft 4011 rotate accordingly to stir the raw material liquid in the extraction tank 1. Simultaneously, the third motor 4046 is started to drive the drive shaft 4033 to rotate intermittently, which in turn drives the rotating disk 403 to rotate in the connecting hopper 4021. The extractant in the hopper 4043 is collected by the conical hopper 4044 and enters the guide pipe 4042 through the discharge hole 4045. The rotating disk 403 aligns with the rotation. The outlet of the orifice 4032 is aligned with the outlet of the guide pipe 4042 to achieve intermittent and uniform dripping of the extractant, so that the extractant and the raw material liquid are in full contact. During the extraction process, the stirring blade 4012 continuously stirs to accelerate the transfer of the active ingredient of the herbicide from the raw material liquid to the extractant, thus completing the extraction mass transfer. After the stirring stops, the liquid is divided into upper and lower layers. At this time, the pump body 406 is started, and the upper layer of extract phase is extracted through the extraction pipe 4061 and then transported to the subsequent process through the discharge pipe 4062. Finally, the lower layer of raffinate is discharged through the discharge pipe 405 at the bottom of the extraction tank 1 to complete the extraction process.

[0033] The specific usage and function of this embodiment: In this invention, the material to be mixed is first fed into the pretreatment cylinder 101 through the raw material inlet 1011 and the impurity removal agent inlet 1012. The first motor 303 is started to drive the third bevel gear 3031 to rotate. Since the third bevel gear 3031 meshes with the first bevel gear 3013 on the rotating shaft 3011 and the second bevel gear 3023 on the rotating sleeve 302, it drives the first bevel gear 3013 and the second bevel gear 3023 to rotate synchronously in opposite directions, so that they pass through the rotating shaft 3011. 011 and the rotating sleeve 302 respectively drive the first stirring rod 3012 and the second stirring rod 3021 to rotate in opposite directions, realizing all-round stirring of the raw material liquid and the impurity removal agent, so that the impurity removal agent and the impurities in the raw material liquid can fully contact and react, and complete efficient impurity removal. Then, the first valve 2011 on the main pipe 201 is opened, so that the mixed raw material flows through the main pipe 201. The raw material liquid passes through the filter screen 2022 in the fixed frame 202 in the main pipe 201 to complete the filtration of solid impurities. The filtered raw material liquid smoothly enters the extraction tank 1, and then starts. The second motor 4013 drives the stirring shaft 4011 to rotate, and the stirring blades 4012 on the outer side of the stirring shaft 4011 rotate accordingly, stirring the raw material liquid in the extraction tank 1. At the same time, the third motor 4046 is started, driving the drive shaft 4033 to rotate intermittently, which in turn drives the rotating disk 403 to rotate in the connecting hopper 4021. The extractant in the hopper 4043 is collected by the conical hopper 4044 and enters the guide pipe 4042 through the discharge hole 4045. As the rotating disk 403 rotates, the alignment hole 4032 aligns with the guide pipe. The outlet of 4042 is aligned to achieve intermittent and uniform dripping of the extractant, ensuring full contact between the extractant and the raw material liquid. During the extraction process, the stirring blade 4012 continuously stirs, accelerating the transfer of the herbicide active ingredients from the raw material liquid to the extractant, thus completing the extraction mass transfer. After stirring stops, the liquid separates into upper and lower layers. At this time, the pump body 406 is started, and the upper extract phase is extracted through the extraction pipe 4061 and then transported to the subsequent process through the discharge pipe 4062. Finally, the lower raffinate is discharged through the discharge pipe 405 at the bottom of the extraction tank 1 to complete the extraction process.

Claims

1. A continuous extraction apparatus for herbicide production, comprising: Extraction tank (1) and pretreatment assembly (2); The top of the extraction tank (1) is provided with a pretreatment cylinder (101), and the top two ends of the pretreatment cylinder (101) are fixedly connected with a raw material inlet (1011) and a purification agent inlet (1012). A pretreatment assembly (2) is provided between the extraction tank (1) and the pretreatment cylinder (101), characterized in that the pretreatment assembly (2) includes: Main pipe (201): Fixedly connected between extraction tank (1) and pretreatment cylinder (101), a first valve (2011) is installed on the main pipe (201), a secondary pipe (2012) is provided on one side of the main pipe (201), and a second valve (2013) is provided at one end of the secondary pipe (2012). Fixed frame (202): Fixedly connected to the middle of the main pipe (201). The inner side wall of the fixed frame (202) is fixedly connected to the positioning slot (2021). A filter screen (2022) is provided between the positioning slots (2021). One end of the filter screen (2022) is fixedly connected to the connecting top plate (2023). A handle (2024) is fixedly connected to the middle of the connecting top plate (2023). Connecting side plates (2025) are fixedly connected to both sides of the connecting top plate (2023). Inserted wedges (2026) are fixedly connected to the ends of the connecting side plates (2025). Connecting side frame (203): It is fixedly connected to both sides of the fixed frame (202). The connecting side frame (203) has a mating groove (2031) inside. A fixing rod (2032) is provided in the mating groove (2031). A spring (2033) is provided on the outside of the fixing rod (2032). Movable groove (204): Located on the outer side of the connecting side frame (203), a movable slide frame (2041) is slidably installed in the movable groove (204). A through hole (2042) is opened on the inner side of the movable slide frame (2041), and a movable groove (2044) is opened inside the movable slide frame (2041). A fixed rod (2032) passes through the through hole (2042) and is fixedly connected to the limiting protrusion (2043) in the movable groove (2044). A locking wedge (2045) is fixedly connected on the movable slide frame (2041), and the locking wedge (2045) and the insert wedge (2026) engage with each other.

2. The continuous extraction equipment for herbicide production according to claim 1, characterized in that: The pretreatment cylinder (101) is equipped with a mixing component (3). The mixing component (3) includes a deceleration frame (301), a rotating shaft (3011), a first stirring rod (3012), and a first bevel gear (3013). The deceleration frame (301) is fixedly connected to one end of the pretreatment cylinder (101). The rotating shaft (3011) is rotatably installed between one side of the deceleration frame (301) and one end of the interior of the pretreatment cylinder (101). The first stirring rod (3012) is fixedly connected to the outside of the rotating shaft (3011). At the same time, the first bevel gear (3013) is fixedly connected to one end of the rotating shaft (3011).

3. A continuous extraction device for herbicide production according to claim 2, characterized in that: Rotary sleeves (302) are provided at both ends of the outer side of the rotating shaft (3011). A fixed convex frame (3021) is fixedly connected between the rotating sleeves (302). A second stirring rod (3022) is fixedly connected to the inner side of the fixed convex frame (3021). At the same time, a second bevel gear (3023) is fixedly connected to the outer side of the rotating sleeve (302).

4. A continuous extraction device for herbicide production according to claim 2, characterized in that: The top of the deceleration frame (301) is fixedly mounted with a first motor (303), and the drive end of the first motor (303) is fixedly connected with a third bevel gear (3031). The third bevel gear (3031) meshes with the first bevel gear (3013) and the second bevel gear (3023).

5. A continuous extraction device for herbicide production according to claim 1, characterized in that: The extraction tank (1) is provided with an extraction assembly (4). The extraction assembly (4) includes a fixed recess (401) and an extraction material pipe (402). Fixed recesses (401) are fixedly connected to both sides of the extraction tank (1). A stirring shaft (4011) is rotatably installed between the fixed recesses (401). A stirring blade (4012) is fixedly connected to the outside of the stirring shaft (4011). One end of the stirring shaft (4011) is fixedly connected to the drive end of the second motor (4013) on the outside. At the same time, an extraction material pipe (402) is fixedly connected to one side of the top of the extraction tank (1).

6. A continuous extraction device for herbicide production according to claim 5, characterized in that: The top of the extraction tube (402) is fixedly connected to a connecting hopper (4021), and the inner side wall of the connecting hopper (4021) is provided with a locking ring groove (4022).

7. A continuous extraction device for herbicide production according to claim 6, characterized in that: The connecting bucket (4021) has a rotating disk (403) inside. A fixing protrusion ring (4031) is fixedly connected to the outside of the rotating disk (403). An alignment hole (4032) is opened on the rotating disk (403). A drive shaft column (4033) is fixedly connected to the top center of the rotating disk (403).

8. A continuous extraction device for herbicide production according to claim 7, characterized in that: The top of the rotating disk (403) is provided with a fixed carrier (404), the bottom of the fixed carrier (404) is provided with a rotating slot (4041), the outside of the fixed carrier (404) is fixedly connected with a guide pipe (4042), the top of the guide pipe (4042) is fixedly connected with a hopper (4043), the bottom of the hopper (4043) is provided with a discharge hole (4045), and the discharge hole (4045) is aligned with the guide pipe (4042).

9. A continuous extraction device for herbicide production according to claim 8, characterized in that: The hopper (4043) is fixedly connected to a cone hopper (4044), and a third motor (4046) is installed inside the cone hopper (4044). The drive end of the third motor (4046) passes through the fixed carrier (404) and is fixedly connected to the drive shaft column (4033).

10. A continuous extraction device for herbicide production according to claim 1, characterized in that: The bottom of the extraction tank (1) is fixedly connected to a discharge pipe (405), and a third valve (4051) is provided on the discharge pipe (405). A pump body (406) is fixedly installed on one side of the extraction tank (1). One end of the pump body (406) is connected to the inside of the extraction tank (1) through an extraction pipe (4061), and the other end of the pump body (406) is fixedly connected to a discharge pipe (4062).