Organic pre-treatment solid-liquid extraction apparatus

Abstract

This application relates to the field of solid-liquid extraction technology, and in particular to a solid-liquid extraction device for organic pretreatment. The device includes a base frame, a tank fixedly mounted on the inner side of the base frame, an adjustment mechanism fixedly mounted on the middle of the rear top of the tank, a filter device fixedly mounted on the top of the adjustment mechanism, and the bottom of the filter device inserted into the interior of the tank. By incorporating a filter device, this application ensures stable installation during assembly by cooperating with the circular frame and mounting block, and the support shaft and limiting arc groove, while also facilitating disassembly. The unique pore size design of the multi-layer filter screen enables layer-by-layer filtration, effectively intercepting impurities of different sizes and significantly improving the overall filtration effect, providing high-quality filtrate for subsequent processing. During processing, a brush plate prevents filter screen clogging, improving filtration stability. The auger and electric heating coil work together to ensure solution circulation and uniform temperature, comprehensively improving the solid-liquid extraction effect and ensuring efficient and stable operation of the device.

Description

Technical Field

[0001] This application relates to the field of solid-liquid extraction technology, and in particular to a solid-liquid extraction apparatus for organic pretreatment. Background Technology

[0002] In the field of modern analytical testing, solid-liquid extraction (SLE) is a crucial separation technique for extracting target components from solid samples, playing an irreplaceable role. Based on the difference in solubility of solutes in different solvents, it facilitates the transfer of the target solute from the solid phase to the liquid phase by ensuring sufficient contact between the solid sample and a suitable solvent. SLE is widely used in many fields such as environmental monitoring and drug development. For example, it is used to analyze organic pollutants in soil samples during environmental monitoring, and to extract effective components from solid raw materials such as medicinal plants during drug development. In the SLE process, the appropriate selection of solvent, methods to improve extraction efficiency (such as stirring, shaking, and heating), and subsequent separation and purification of the extract and solid residue all play a decisive role in accurately determining the content or properties of the target components.

[0003] With the development of technology, some solid-liquid extraction devices have emerged, such as the solid-liquid extraction device for organic pretreatment disclosed in Chinese Patent No. CN220194043U. This device effectively improves the filtration effect of the solution reaction in the solid by setting up multiple layers of storage filter plates with the filter mesh increasing from top to bottom. At the same time, the box-shaped storage filter plates can better store the solid after the reaction, avoiding the discharge liquid from containing particulate impurities. The spacing between adjacent storage filter plates can also be controlled by limiting tubes to enhance the extraction effect.

[0004] However, existing technologies still have many problems that urgently need to be solved. In practical use, the top of the filter plate of this device lacks an agitation and scraping structure, which causes impurities filtered out during application to easily adhere to the top of the filter screen. As filtration continues, the impurities will gradually clog the filter screen, seriously affecting the overall filtration efficiency. In addition, when disassembling and assembling the filter screen, it is necessary to remove them one by one from inside the device, which is cumbersome and difficult to remove quickly, greatly limiting work efficiency and convenience. In summary, existing solid-liquid extraction devices have obvious defects in structural design and functional implementation, and there is an urgent need for innovative and improved design to meet the ever-evolving analytical and testing needs. Summary of the Invention

[0005] In order to improve the filtration efficiency during the application of existing technologies, this application provides a solid-liquid extraction device for organic pretreatment.

[0006] This application provides a solid-liquid extraction device for organic pretreatment, which adopts the following technical solution: it includes a base frame, a tank body is fixedly installed on the inner side of the base frame, an adjustment mechanism is fixedly installed in the middle of the rear top of the tank body, a filter device is fixedly installed on the top of the adjustment mechanism, the bottom of the filter device is inserted into the inside of the tank body, a drain valve is fixedly installed at the bottom output end of the tank body, the input end of the drain valve is connected to the bottom of the tank body, a drain pipe is fixedly installed at the output end of the drain valve, reflux pipes are fixedly installed at equal intervals on the lower end of the outer surface of the tank body, the input end of the reflux pipe is connected to the bottom of the tank body, the output end of the reflux pipe is connected to the top of the tank body, and an electric heating coil is fixedly installed on the bottom inner wall of the tank body. The filtration device includes a top plate, which is fixedly installed on the top of the adjustment mechanism. A first motor is fixedly installed at the front end of the top of the top plate. A connecting shaft is fixedly installed through the top plate at the output end of the first motor. A top cover is rotatably connected to the bottom of the connecting shaft. A filtration mechanism is rotatably connected to the bottom of the top cover. The filtration mechanism is movably installed inside the tank. The top of the filtration mechanism is connected to the bottom of the connecting shaft.

[0007] Optionally, a feeding valve is fixedly installed on one side of the top of the top cover, and the output end of the feeding valve passes through the top cover and is connected to the inside of the tank.

[0008] Optionally, a feeding pipe is fixedly connected to the top of the feeding valve, and a feeding hopper is fixedly connected to the top of the feeding pipe.

[0009] Optionally, the adjustment mechanism includes a fixed plate, which is fixedly connected to the rear middle of the base frame. A vertical rail is fixedly installed on the top of the fixed plate. A drive assembly is movably installed inside the vertical rail. A lifting frame is fixedly installed on the outside of the drive assembly. The top of the lifting frame is fixedly connected to the top plate.

[0010] Optionally, the drive assembly includes a rack and a movable frame, the movable frame being slidably connected to the interior of the vertical rail, the rack being fixedly connected to one side of the back of the vertical rail, a second motor being fixedly connected inside the movable frame, and a gear being fixedly connected to the output end of the second motor, the rack and the gear being meshed together.

[0011] Optionally, the filtration mechanism includes a rotating shaft rotatably connected to the bottom center of the top cover. The top of the rotating shaft is connected to the bottom of the connecting shaft. Mounting components are rotatably connected to the outer surface of the rotating shaft at equal intervals. A circular frame is movably mounted on the outer side of the mounting components. A filter screen is fixedly mounted at the bottom inside the circular frame. Agitating components are provided on the top of the mounting components on the outer surface of the rotating shaft. An auger is fixedly connected to the bottom of the outer surface of the rotating shaft.

[0012] Optionally, the tank body is fixedly connected with support shafts arranged in a ring at equal intervals, and the outer side of the circular frame is provided with limiting arc grooves at equal intervals, and the support shafts and limiting arc grooves are slidably connected.

[0013] Optionally, the mounting assembly includes a mounting groove and a rotating sleeve. The rotating sleeve is rotatably connected to the outer surface of the rotating shaft in a linear arrangement with equal spacing. The mounting groove is opened on one side of the circular frame. A mounting block is fixedly connected to the outer surface of the rotating sleeve, and the mounting block is slidably connected to the inner side of the mounting groove.

[0014] Optionally, the mounting assembly includes a mounting groove and a rotating sleeve. The rotating sleeve is rotatably connected to the outer surface of the rotating shaft in a linear arrangement with equal spacing. The mounting groove is opened on one side of the circular frame. A mounting block is fixedly connected to the outer surface of the rotating sleeve, and the mounting block is slidably connected to the inner side of the mounting groove.

[0015] Optionally, support rods are fixedly connected to both ends of the top of the slide plate, the ends of the support rods pass through the mounting frame, the support rods and the mounting frame are slidably connected, and the overall cross-sectional shape of the mounting groove and the cross-sectional shape of the mounting block are both arranged in a cross shape.

[0016] In summary, this application includes the following beneficial technical effects: This device, through its adjustable mechanism, effectively enhances the convenience and efficiency of maintenance during use. When maintenance is required, the second motor is activated, driving the connected gear to rotate. Due to the precise meshing of the gear and rack, the gear's rotation drives the rack, allowing the movable frame to slide smoothly within the vertical rail. The movable frame's upward movement causes the lifting frame and top plate to rise, slowly pulling the filter device out of the tank. This allows for thorough and meticulous inspection and cleaning of the tank and filter device. After maintenance, the second motor is activated in reverse, causing the movable frame to move downward and the lifting frame to descend, precisely inserting the filter device into the tank. Furthermore, after the filter device is removed, the circular frame can be easily removed by sliding it on the mounting block. Utilizing the cooperation between the mounting block and the mounting groove, the circular frame can be easily removed for filter replacement and cleaning, improving the device's maintenance convenience and overall filtration efficiency. The filtration device of this apparatus allows each circular frame to be accurately fitted onto the outer surface of the mounting block via the mounting slot before processing. Then, the adjustment mechanism is activated to smoothly insert the filtration device into the tank. During installation, each support shaft is inserted into the limiting arc groove, and the support shaft and the limiting arc groove slide against each other to ensure that the circular frame is firmly installed inside the tank. The feeding valve is opened, and the material to be processed is guided by the feeding hopper and smoothly enters the tank. When the device is in use, the filter screens inside the multiple equally spaced circular frames have a unique design with the top filter screen having a larger aperture than the bottom. This design allows the material to be filtered layer by layer. The ingenious layout of multiple layers of filtration allows impurities of different sizes to be intercepted step by step, effectively improving the overall filtration effect of the device and providing high-quality filtrate for subsequent processing. During processing, the first motor can be started, driving the connecting shaft to rotate, which in turn drives the rotating shaft to rotate. The mutual limiting of the support shaft and the limiting arc groove ensures that the circular frame is stable inside the tank. The rotating sleeve allows the rotating shaft to rotate flexibly on the mounting block inside the circular frame, while the circular frame remains stationary. The rotation of the rotating shaft drives the mounting plate and mounting frame to rotate. The brush plate on the inner side of the mounting frame, under the reset action of the telescopic spring, stably brushes the top of the filter screen. The support rod assists in supporting the telescopic spring to prevent the filter screen from being blocked by impurities and improves filtration stability. At the same time, the rotating shaft drives the bottom auger to rotate, stirring the solution at the bottom of the tank and causing it to surge downwards. The solution flows back upwards through the reflux pipe. The electric heating coil is activated to heat the solution, causing it to tumble up and down, achieving continuous circulation filtration. This not only improves the filtration effect but also ensures that the temperature is evenly distributed inside the tank, comprehensively improving the solid-liquid extraction effect and ensuring the efficient and stable operation of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application; Figure 2 This is a schematic diagram of the rear view structure in an embodiment of this application; Figure 3 This is a bottom-view structural diagram of an embodiment of this application; Figure 4 This is a top view of the structure in an embodiment of this application; Figure 5 This is a schematic diagram of the filtering mechanism structure in an embodiment of this application; Figure 6 This is a schematic diagram of the separation state structure of the filter mechanism in the embodiments of this application; Figure 7 This is a top view of the structure of the installed components in the separated state in an embodiment of this application; Figure 8 This is a top-view structural diagram of the installation components in the separated state in an embodiment of this application; Figure 9 This is an embodiment of the present application. Figure 2 A magnified structural diagram at point A.

[0018] Reference numerals: 1. Base frame; 2. Tank body; 3. Adjustment mechanism; 31. Fixing plate; 32. Vertical rail; 33. Drive assembly; 331. Rack; 332. Movable frame; 333. Second motor; 334. Gear; 34. Lifting frame; 4. Drain valve; 5. Drain pipe; 6. Filtering device; 61. Top plate; 62. First motor; 63. Coupling shaft; 64. Top cover; 65. Feeding valve; 66. Filtering mechanism; 661. Rotating shaft; 66 2. Mounting components; 6621. Mounting slot; 6622. Rotating sleeve; 6623. Mounting block; 663. Circular frame; 664. Filter screen; 665. Agitator assembly; 6651. Mounting plate; 6652. Mounting bracket; 6653. Telescopic spring; 6654. Slide plate; 6655. Brush plate; 6656. Support rod; 666. Support shaft; 667. Limiting arc groove; 67. Feeding pipe; 68. Feeding hopper; 69. Screwdriver; 7. Backflow pipe. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-9 This application will be described in further detail.

[0020] This application discloses a solid-liquid extraction apparatus for organic pretreatment. For example... Figure 1-9 As shown, the system includes a base frame 1, a tank 2 fixedly installed on the inner side of the base frame 1, an adjustment mechanism 3 fixedly installed in the middle of the rear top of the tank 2, a filter device 6 fixedly installed on the top of the adjustment mechanism 3, the bottom of the filter device 6 inserted into the inside of the tank 2, a drain valve 4 fixedly installed at the bottom output end of the tank 2, the input end of the drain valve 4 connected to the bottom of the tank 2, a drain pipe 5 fixedly installed at the output end of the drain valve 4, backflow pipes 7 fixedly installed at equal intervals at the lower end of the outer surface of the tank 2, the input end of the backflow pipes 7 connected to the bottom inside the tank 2, the output end of the backflow pipes 7 connected to the top inside the tank 2, and an electric heating coil fixedly installed on the bottom inner wall of the tank 2. The filter device 6 includes a top plate 61, which is fixedly installed on the top of the adjusting mechanism 3. A first motor 62 is fixedly installed at the front end of the top of the top plate 61. A connecting shaft 63 is fixedly installed through the top plate 61 at the output end of the first motor 62. A top cover 64 is rotatably connected to the bottom of the connecting shaft 63. A filter mechanism 66 is rotatably connected to the bottom of the top cover 64. The filter mechanism 66 is movably installed inside the tank 2. The top of the filter mechanism 66 is connected to the bottom of the connecting shaft 63. The base frame 1 of this device supports and fixes the tank 2. During solid-liquid extraction, the adjusting mechanism 3 can control the raising and lowering of the filter device 6. When it is necessary to insert the filter device 6 into the tank 2 for operation, the adjusting mechanism... 3. Operation: The top plate 61 and its connected filter device 6 are pushed downwards, allowing the filter mechanism 66 to smoothly enter the tank 2. At this time, the organic mixture to be treated can enter the tank 2. The first motor 62 is started, and its output end drives the connecting shaft 63 to rotate. The connecting shaft 63 further drives the filter mechanism 66 to operate. The components inside the filter mechanism 66 work together to filter the mixture. During the filtration process, the electric heating coil at the bottom of the tank 2 can heat the mixture to assist the solid-liquid extraction process. At the same time, the reflux pipe 7 transports the liquid at the bottom of the tank 2 to the top to form a circulation and improve the extraction effect. After filtration is completed, the drain valve 4 is opened, and the treated liquid is discharged through the drain pipe 5.

[0021] Please refer to Figures 4-8The mounting component 662 includes a mounting groove 6621 and a rotating sleeve 6622. The rotating sleeves 6622 are linearly arranged at equal intervals and rotatably connected to the outer surface of the rotating shaft 661. The mounting groove 6621 is opened on one side of the circular frame 663. A mounting block 6623 is fixedly connected to the outer surface of the rotating sleeve 6622 and slidably connected to the inner side of the mounting groove 6621. The agitating component 665 includes a mounting disc 6651. The mounting discs 6651 are linearly arranged at equal intervals and fixedly connected to the outer surface of the rotating shaft 661. The mounting discs 6651 are all located at the upper end of each circular frame 663. A mounting bracket 6652 is fixedly installed on one side of component 1. Telescopic springs 6653 are linearly arranged and fixedly connected within the mounting bracket 6652 at equal intervals. A sliding plate 6654 is fixedly connected to the bottom of the telescopic springs 6653. A brush plate 6655 is fixedly connected to the bottom of the sliding plate 6654. Support rods 6656 are fixedly connected to both ends of the top of the sliding plate 6654. The ends of the support rods 6656 penetrate the mounting bracket 6652, and the support rods 6656 and the mounting bracket 6652 are slidably connected. The overall cross-sectional shape of the mounting groove 6621 and the cross-sectional shape of the mounting block 6623 are both cross-shaped, using an assembly... The components 662 and 665 work together to ensure that, during installation, the rotating sleeves 6622, with their equally spaced linear arrangement and rotatable connection to the outer surface of the rotating shaft 661, allow the mounting blocks 6623 fixed to their outer surface to easily mount the circular frame 663 onto the rotating shaft 661 via a sliding connection with the mounting grooves 6621. Both the mounting grooves 6621 and the mounting blocks 6623 have a cross-shaped cross-section, ensuring a stable connection and accurate positioning. During operation, the rotating shaft 661 rotates, causing the mounting discs 6651 fixed to its outer surface to rotate synchronously. The mounting discs 6651 are located at various positions... At the top of the circular frame 663, a telescopic spring 6653 inside a mounting bracket 6652 on one side will expand and contract due to its own elasticity and mechanical movement during device operation. The sliding plate 6654 connected to the bottom of the spring can move up and down under the action of the spring, driving the bottom brush plate 6655 to brush the filter screen inside the circular frame 663. The support rods 6656 at both ends of the top of the sliding plate 6654 pass through the mounting bracket 6652 and can slide to connect with it, playing an auxiliary support and guiding role, ensuring the stability of the brush plate 6655 during the up and down movement, thereby effectively preventing the filter screen from being blocked by impurities and maintaining the filtration effect.

[0022] Please refer to Figures 1-4 and Figure 9The adjustment mechanism 3 includes a fixed plate 31, which is fixedly connected to the middle of the rear side of the base frame 1. A vertical rail 32 is fixedly installed on the top of the fixed plate 31. A drive assembly 33 is movably installed inside the vertical rail 32. A lifting frame 34 is fixedly installed on the outside of the drive assembly 33. The top of the lifting frame 34 is fixedly connected to the top plate 61. The drive assembly 33 includes a rack 331 and a movable frame 332. The movable frame 332 is slidably connected to the inside of the vertical rail 32. The rack 331 is fixedly connected to one side of the back of the vertical rail 32. A second motor 333 is fixedly connected inside the movable frame 332. A gear 334 is fixedly connected to the output end of the second motor 333. The rack 331 and the gear 334 are meshed together. During use, the fixed plate 31 is fixed to the middle of the rear side of the base frame 1 to provide stable support for the overall adjustment mechanism 3. The vertical rail 32 on its top is the running track of the movable parts. When it is necessary to adjust the filter... When the filter 6 is adjusted for height, the drive assembly 33 plays a crucial role. The second motor 333 is started, and the output of the motor drives the gear 334 to rotate. Since the gear 334 meshes with the rack 331 fixed on one side of the back of the vertical rail 32, the rotation of the gear 334 is converted into the linear motion of the rack 331, thereby driving the movable frame 332 to slide smoothly inside the vertical rail 32. The movable frame 332 is connected to the lifting frame 34. The sliding of the movable frame 332 drives the lifting frame 34 to move synchronously. The top of the lifting frame 34 is fixedly connected to the top plate 61 of the filter device 6. In this way, the movement of the lifting frame 34 can accurately drive the top plate 61 and the connected filter device 6 to rise or fall, so as to meet the needs of the equipment for the position of the filter device 6 at different working stages. For example, the filter device 6 is lowered and inserted into the tank 2 before the equipment is started, and the filter device 6 is raised for operation during maintenance.

[0023] Please refer to Figures 4-8The filter mechanism 66 includes a rotating shaft 661, which is rotatably connected to the bottom center of the top cover 64. The top of the rotating shaft 661 is connected to the bottom of the connecting shaft 63. Mounting components 662 are rotatably connected to the outer surface of the rotating shaft 661 at equal intervals. A circular frame 663 is movably mounted on the outer side of the mounting components 662. A filter screen 664 is fixedly mounted at the bottom inside the circular frame 663. Agitating components 665 are provided on the outer surface of the rotating shaft 661 at the top of the mounting components 662. The lowest point of the outer surface of the rotating shaft 661 is fixedly connected to... The filter mechanism 66 is equipped with an auger 69. Inside the tank 2, support shafts 666 are fixedly connected in a ring at equal intervals. Limiting arc grooves 667 are equally spaced on the outer side of the circular frame 663. The support shafts 666 and the limiting arc grooves 667 are slidably connected. When the filter mechanism 66 is working, the first motor 62 drives the connecting shaft 63 to rotate, and the rotating shaft 661 connected to the bottom of the connecting shaft 63 rotates accordingly. The rotating shaft 661 is rotatably connected to the bottom of the top cover 64, providing power for the operation of the entire filter mechanism 66. The outer surface of the rotating shaft 661 is rotatably connected to... Mounting assembly 662 allows the circular frame 663 to be easily mounted on the rotating shaft 661. The filter screen 664, fixed at the bottom inside the circular frame 663, is a key component of the filter, used to intercept impurities. The agitator assembly 665, located on the outer surface of the rotating shaft 661 at the top of the mounting assembly 662, operates synchronously when the rotating shaft 661 rotates. The mounting plate 6651 drives the mounting bracket 6652 to rotate, and the telescopic spring 6653 inside the mounting bracket 6652 pushes the sliding plate 6654 and the brush plate 6655 to brush the top of the filter screen 664. To prevent impurities from clogging the filter screen and ensure filtration efficiency, the auger 69 fixed at the bottom of the outer surface of the rotating shaft 661 agitates the solution at the bottom of the tank 2 when the rotating shaft 661 rotates, promoting solid-liquid mixing and separation. The ring-shaped support shafts 666 inside the tank 2 are slidably connected to the limiting arc grooves 667 on the outer side of the circular frame 663, ensuring that the circular frame 663 is stably installed inside the tank 2 without hindering the corresponding movement of the circular frame 663 when the rotating shaft 661 rotates, thus achieving efficient solid-liquid filtration and extraction functions.

[0024] Please refer to Figures 1-4A feeding valve 65 is fixedly installed on one side of the top of the top cover 64. The output end of the feeding valve 65 passes through the top cover 64 and is connected to the inside of the tank body 2. A feeding pipe 67 is fixedly connected to the top of the feeding valve 65, and a feeding hopper 68 is fixedly connected to the top of the feeding pipe 67. During use, the material to be processed is first placed in the feeding hopper 68. The feeding hopper 68, with its large opening area, facilitates the concentrated feeding of materials. The material enters the feeding pipe 67 connected to it through the feeding hopper 68. The feeding pipe 67 plays the role of guiding the material transmission. The top of valve 65 is fixedly connected, allowing materials to flow smoothly into it. The output end of the feeding valve 65 passes through the top cover 64 and is connected to the inside of the tank 2. By controlling the opening and closing of the feeding valve 65, the flow rate and speed of materials entering the tank 2 can be precisely adjusted. When the feeding valve 65 is open, the material falls into the tank 2 through the output end of the feeding valve 65 under the action of gravity, thereby achieving efficient and stable delivery of the material to be processed into the tank 2, providing raw material supply for subsequent related process operations in the tank 2, such as solid-liquid extraction and mixing reaction.

[0025] The implementation principle of the solid-liquid extraction device for organic pretreatment in this application embodiment is as follows: This device, through its ingeniously designed adjustment mechanism 3, significantly improves the convenience and efficiency of equipment maintenance. Specifically, during device use, when maintenance is required, the second motor 333 can be started. When the second motor 333 runs, it drives the connected gear 334 to rotate. Due to the precise meshing connection between the gear 334 and the rack 331, as the gear 334 rotates, the rack 331 moves accordingly under the action of meshing transmission, thereby driving the movable frame 332 to slide smoothly inside the vertical rail 32. When the movable frame 332 moves upward, the connected lifting frame 34 also moves upward synchronously. The upward movement of the lifting frame 34 pushes the top plate 61 upward. Through this linkage mechanism, the upward movement of the top plate 61 can drive the filter device 6 to slowly extend from inside the tank 2. At this time, the staff can conveniently perform comprehensive and detailed maintenance and cleaning work on the inside of the tank 2 and the filter device 6. After maintenance and cleaning are completed, simply start the second motor 333 to rotate in reverse. The reverse rotation of the motor will drive the gear 334 to rotate in the opposite direction, which will cause the movable frame 332 to slide downward inside the vertical rail 32. As the movable frame 332 moves downward, the lifting frame 34 will also descend, thereby accurately inserting the filter device 6 into the tank 2 and restoring the normal operation of the device. In addition, when the filter device 6 extends out of the tank 2 and the round frame 663 needs to be removed, it can be slid on the mounting block 6623 by pulling the round frame 663. By utilizing the sliding cooperation between the mounting block 6623 and the mounting groove 6621, each round frame 663 can be easily removed from the mounting block 6623 on the outer surface of the rotating shaft 661, so as to efficiently replace and clean the filter screen 664. This series of designs can effectively improve the convenience of the device in subsequent maintenance processes, making it easy and quick to pull out the filter device 6 inside the entire tank 2, providing great convenience for the maintenance of the device and further improving the overall filtration efficiency of the device.

[0026] Meanwhile, the filter device 6 installed in this device plays a crucial role in the entire processing process and has many significant advantages. Before the processing operation, each circular frame 663 must first be accurately fitted onto the outer surface of the mounting block 6623 through the mounting groove 6621. After the fitting is completed, the adjustment mechanism 3 is activated to move the entire filter device 6 downwards, allowing it to be smoothly inserted into the tank 2. During the installation process, each support shaft 666 will be precisely inserted into the limiting arc groove 667. Through the mutual sliding limiting action between the support shaft 666 and the limiting arc groove 667, the circular frame 663 can be ensured to be properly inserted into the tank 2. The frame 663 is securely and reliably installed inside the tank 2. At this time, the feeding valve 65 is opened, and the material to be processed is added into the feeding hopper 68. With the help of the auxiliary guiding function of the feeding hopper 68, the material can smoothly enter the tank 2 through the feeding valve 65. During the use of the device, the filter screen pores inside the multiple equally spaced circular frames 663 exhibit a unique design feature, that is, the filter screen pores at the top are all larger than those at the bottom. This design enables the material to be filtered layer by layer when passing through the filtration device 6. The ingenious layout of the multi-layer filtration effectively improves the overall filtration effect of the device.

[0027] Furthermore, during the processing, the first motor 62 can be started to drive the connecting shaft 63 to rotate. The rotation of the connecting shaft 63 in turn drives the rotating shaft 661 to rotate. During the rotation of the rotating shaft 661, due to the mutual limiting effect between the support shaft 666 and the limiting arc groove 667, the circular frame 663 can be stably positioned in the predetermined position inside the tank 2. It is worth noting that the rotating sleeve 6622 is rotatably connected to the outer surface of the rotating shaft 661, which allows the rotating shaft 661 to rotate flexibly on the mounting block 6623 inside the circular frame 663, while the circular frame 663 remains relatively stationary. The rotation of the rotating shaft 661 will drive the various mounting discs 6651 on its outer surface to rotate synchronously. The rotation of the mounting discs 6651 will in turn drive the mounting bracket 6652 to rotate. At this point, the brush plate 6655 inside the mounting bracket 6652 will perform a comprehensive and meticulous brushing operation on the top of the filter screen 664. During the brushing process, the telescopic spring 6653 will push the sliding plate 6654 downward through its own reset action, thereby ensuring that the brush plate 6655 can always maintain stable contact with the top of the filter screen 664, achieving continuous and uninterrupted brushing. This brushing method can effectively prevent the filter screen 664 from being clogged by attached impurities, further improving the filtration efficiency. In addition, during the brushing process, the support rod 6656 can play an important role in assisting and supporting the telescopic spring 6653, enabling the telescopic spring 6653 to stably drive the brush plate 6655 to perform brushing and cleaning, thereby significantly improving the stability of the filtration process.

[0028] Meanwhile, during the use of the device, the rotation of the rotating shaft 661 can also drive the auger 69 at its bottom to rotate. When the auger 69 rotates, it will fully agitate the solution at the bottom of the tank 2 on the one hand, and drive the solution to surge downwards on the other hand. At this time, as the solution flows downwards, it will flow back upwards through the backflow pipe 7. The backflow pipe 7 can backflow the liquid from the bottom of the tank 2 to the top of the tank 2. On this basis, the electric heating coil at the bottom is activated to heat the solution, which can cause the solution inside the tank 2 to form a dynamic circulation of up and down rolling during filtration. This circulation method can not only achieve continuous circulation filtration and further improve the filtration effect, but also the up and down rolling of the solution can make the temperature evenly fill the inside of the tank 2, thereby comprehensively improving the overall solid-liquid extraction effect of the device and ensuring that the device can achieve a high-efficiency, stable and high-quality working state during the processing. After the processing is completed, the discharge valve can be opened and the processed material can be discharged through the discharge pipe.

[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A solid-liquid extraction device for organic pretreatment, characterized in that; Includes a base frame (1), a tank (2) is fixedly installed on the inner side of the base frame (1), an adjustment mechanism (3) is fixedly installed in the middle of the rear top of the tank (2), a filter device (6) is fixedly installed on the top of the adjustment mechanism (3), the bottom of the filter device (6) is inserted into the inside of the tank (2), a drain valve (4) is fixedly installed at the bottom output end of the tank (2), the input end of the drain valve (4) is connected to the bottom of the tank (2), a drain pipe (5) is fixedly installed at the output end of the drain valve (4), a backflow pipe (7) is fixedly installed at equal intervals at the lower end of the outer surface of the tank (2), the input end of the backflow pipe (7) is connected to the bottom inside of the tank (2), the output end of the backflow pipe (7) is connected to the top inside of the tank (2), and an electric heating coil is fixedly installed on the bottom inner wall of the tank (2). The filter device (6) includes a top plate (61), which is fixedly installed on the top of the adjustment mechanism (3). A first motor (62) is fixedly installed on the front end of the top of the top plate (61). The output end of the first motor (62) passes through the top plate (61) and is fixedly installed with a connecting shaft (63). The bottom of the connecting shaft (63) is rotatably connected to a top cover (64). The bottom of the top cover (64) is rotatably connected to a filter mechanism (66). The filter mechanism (66) is movably installed inside the tank (2). The top of the filter mechanism (66) is connected to the bottom of the connecting shaft (63). The adjustment mechanism (3) includes a fixed plate (31), which is fixedly connected to the middle of the rear side of the base frame (1). A vertical rail (32) is fixedly installed on the top of the fixed plate (31). A drive assembly (33) is movably installed inside the vertical rail (32). A lifting frame (34) is fixedly installed on the outside of the drive assembly (33). The top of the lifting frame (34) is fixedly connected to the top plate (61). The filtration mechanism (66) includes a rotating shaft (661), which is rotatably connected to the bottom center of the top cover (64). The top of the rotating shaft (661) is connected to the bottom of the connecting shaft (63). The outer surface of the rotating shaft (661) is rotatably connected with mounting components (662) at equal intervals. A circular frame (663) is movably mounted on the outside of the mounting components (662). A filter screen (664) is fixedly mounted at the bottom inside the circular frame (663). Agitating components (665) are provided on the outer surface of the rotating shaft (661) at the top of the mounting components (662). An auger (69) is fixedly connected to the bottom of the outer surface of the rotating shaft (661). The mounting assembly (662) includes a mounting groove (6621) and a rotating sleeve (6622). The rotating sleeve (6622) is rotatably connected to the outer surface of the rotating shaft (661) in a linear arrangement with equal spacing. The mounting groove (6621) is opened on one side of the circular frame (663). The outer surface of the rotating sleeve (6622) is fixedly connected to a mounting block (6623), and the mounting block (6623) is slidably connected to the inner side of the mounting groove (6621). Multiple circular frames (663) and their filter screens (664) are equidistantly distributed along the axis of rotation (661), and the mesh size of the multiple filter screens (664) decreases from top to bottom; The agitation assembly (665) includes a mounting plate (6651), which is linearly arranged at equal intervals and fixedly connected to the outer surface of the rotating shaft (661). The mounting plates (6651) are all located at the upper end of each circular frame (663). A mounting bracket (6652) is fixedly installed on one side of the mounting plate (6651). The mounting bracket (6652) is linearly arranged at equal intervals and fixedly connected to the inside of the mounting bracket (6652). A sliding plate (6654) is fixedly connected to the bottom of the sliding plate (6654). A brush plate (6655) is fixedly connected to the bottom of the sliding plate (6654).

2. The solid-liquid extraction apparatus for organic pretreatment according to claim 1, characterized in that: A feeding valve (65) is fixedly installed on one side of the top of the top cover (64), and the output end of the feeding valve (65) passes through the top cover (64) and is connected to the inside of the tank (2).

3. The solid-liquid extraction device for organic pretreatment according to claim 2, characterized in that: The top of the feeding valve (65) is fixedly connected to a feeding pipe (67), and the top of the feeding pipe (67) is fixedly connected to a feeding hopper (68).

4. The solid-liquid extraction apparatus for organic pretreatment according to claim 3, characterized in that: The drive assembly (33) includes a rack (331) and a movable frame (332). The movable frame (332) is slidably connected to the inside of the vertical rail (32). The rack (331) is fixedly connected to one side of the back of the vertical rail (32). A second motor (333) is fixedly connected inside the movable frame (332). A gear (334) is fixedly connected to the output end of the second motor (333). The rack (331) and the gear (334) are meshed together.

5. The solid-liquid extraction apparatus for organic pretreatment according to claim 4, characterized in that: The tank (2) is fixedly connected with support shafts (666) arranged in a ring at equal intervals. The outer side of the circular frame (663) is provided with limiting arc grooves (667) at equal intervals. The support shafts (666) and the limiting arc grooves (667) are slidably connected.

6. The solid-liquid extraction apparatus for organic pretreatment according to claim 5, characterized in that: The top two ends of the slide plate (6654) are fixedly connected with support rods (6656), the ends of the support rods (6656) pass through the mounting frame (6652), the support rods (6656) and the mounting frame (6652) are slidably connected, and the overall cross-sectional shape of the mounting groove (6621) and the cross-sectional shape of the mounting block (6623) are both arranged in a cross shape.

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