Plant material press solid-liquid separation device capable of preventing filter screen from coking

Abstract

This invention discloses a plant-based material pressing solid-liquid separation device to prevent filter screen slag buildup, specifically relating to the field of solid-liquid separation technology. It includes a support frame with a separation component mounted on it. The separation component includes a solid-liquid separation cylinder located in the middle of the support frame, with an inner liner at the bottom of the inner cavity of the solid-liquid separation cylinder and a slag collection box on one side of the top of the inner liner. This invention uses both scraping and rolling methods for dynamic secondary solid-liquid separation of the material. In particular, the rolling and pressing action of the pressing balls can penetrate deep into the gaps between materials, breaking through the dead zones present in traditional static solid-liquid separation, ensuring efficient and effective solid-liquid separation. Simultaneously, the elastic wrapping cover's deformation adaptability and flexible pressure adjustment allow it to adapt to plant-based materials with different hardness and moisture content, such as soft fruits and vegetables to hard nuts. It can process multiple types of materials without replacing core components, broadening the equipment's application scenarios.

Description

Technical Field

[0001] This invention relates to the field of solid-liquid separation technology, and more specifically, to a plant material pressing solid-liquid separation device that prevents filter screen slagging. Background Technology

[0002] Plant-based materials refer to natural raw materials derived from plants and used to extract specific components (such as oils, juices, active substances, etc.). Their core characteristic is a mixed structure containing "target soluble / solid-liquid separation components + insoluble solid matrix".

[0003] Soluble or solid-liquid separation target components: These are the core extraction targets of the process, such as oils (fat in soybeans, peanuts, and sunflower seeds), juices (sucrose juice in sugarcane, water and flavor substances in fruits and vegetables), and small molecule active substances (tea polyphenols in tea, and active ingredients in traditional Chinese medicine). Taking oil pressing as an example: the "crude oil" obtained after solid-liquid separation will contain a large amount of solid residue (such as soybean meal powder and peanut shell fragments). These residues not only affect the transparency of the oil (causing turbidity), but also oxidize and deteriorate during storage (enzymes or impurities in the residue accelerate oil rancidity). Therefore, a solid-liquid separation device for plant-based material pressing that prevents filter screen slagging is provided. Summary of the Invention

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a plant material pressing solid-liquid separation device that prevents filter screen slagging, aiming to solve the problems mentioned in the background art.

[0005] The present invention provides the following technical solution: a plant material pressing solid-liquid separation device for preventing filter screen slagging, comprising a support frame, wherein a separation component is provided on the support frame;

[0006] The separation assembly includes a solid-liquid separation cylinder disposed in the middle of the support frame. The bottom of the inner cavity of the solid-liquid separation cylinder is provided with an inner liner, and a slag storage box is provided on one side of the top of the inner liner.

[0007] The inner cavity of the inner liner is provided with a filter basket at the top and an inclined filter plate at the bottom of the filter basket. The inclined filter plate is inclined downward and extends to one side of the slag storage box.

[0008] A solid-liquid separation block is rotatably connected to the middle of the filter basket. Several solid-liquid separation strips are fixedly arranged on the outer side of the solid-liquid separation block. Brush plates are respectively arranged on both sides of the bottom of the solid-liquid separation block.

[0009] The solid-liquid separation block is provided with a reinforcing cylinder at the top, a squeezing disc at the bottom end of the reinforcing cylinder, a gas-gathering cavity in the middle of the reinforcing cylinder, an elastic cover inside the gas-gathering cavity, a number of elastic strips on the elastic cover, and the gas-gathering cavity is located on the outside of the solid-liquid separation block.

[0010] Optionally, in one possible implementation, the bottom of each of the two grating plates is provided with an inclined groove, and a plurality of pressing balls are provided on one side of each inclined groove. The pressing balls are embedded in the grating plate and movably connected to the grating plate. An inner liner frame is provided inside the inner liner frame, and a vertical shaft is inserted into the inner liner frame. A spring is sleeved on the outside of the vertical shaft. A first toothed disc is movably connected to the top of the spring. A reinforcing column is provided at the top of the first toothed disc. The top of the reinforcing column is bolted to the solid-liquid separation block. The inclined filter plate is fixed to the outside of the reinforcing column. A second toothed disc is rotatably connected to one side of the inner liner frame. A first gear is provided at the top of the second toothed disc. A motor is provided on the side of the inner liner frame away from the second toothed disc. A second gear is provided at the output end of the motor. The second gear extends to the second toothed disc and meshes with the second toothed disc. The top of the first gear extends to one side of the first toothed disc and meshes with the first toothed disc.

[0011] Optionally, in one possible implementation, a hydraulic rod is provided at the top of the support frame, and a reinforcing air guide cylinder is provided at the output end of the hydraulic rod. The reinforcing air guide cylinder is slidably connected to the support frame and is located above the solid-liquid separation cylinder. An air pump is provided on the reinforcing air guide cylinder, and the output end of the air pump extends into the reinforcing air guide cylinder. A hollow screw is threadedly connected to the bottom end of the reinforcing air guide cylinder. The hollow screw is located at the top of the reinforcing cylinder, and several air inlet slots are opened on the outer side of the hollow screw.

[0012] The technical effects and advantages of this invention are as follows:

[0013] This invention uses a hydraulically driven extrusion disc combined with spiral convex patterns to first compact and push the material to the edges, avoiding accumulation in the center. The solid-liquid separation block, solid-liquid separation strip and chuck driven by the motor perform dynamic secondary solid-liquid separation of the material through scraping and rolling. In particular, the rolling and pressing of the pressing ball can penetrate into the gaps between the materials, breaking the dead corners of traditional static solid-liquid separation and ensuring the efficiency and effect of solid-liquid separation.

[0014] In the solid-liquid separation process, this invention utilizes a pneumatically driven elastic enclosure to expand and deform, forming an encapsulated solid-liquid separation mechanism that further squeezes out residual oil or juice. Simultaneously, the multi-stage solid-liquid separation process completes filtration concurrently. The dual filter design of the filter basket and inclined filter plate directly achieves solid-liquid separation during the solid-liquid separation stage, eliminating the need for additional filtration steps. This saves time and costs for subsequent purification and storage, laying the core foundation for the equipment's economic efficiency.

[0015] This invention solves the problem of traditional filter screen slagging through a dual mechanism of active guidance and real-time cleaning: A motor drives an inclined filter plate to rotate synchronously with the solid-liquid separation block. The inclined structure of the filter plate, combined with centrifugal force, quickly guides the intercepted residue to the slag collection box, preventing residue from accumulating on the filter pore surface. Simultaneously, an elastic cover, under air pressure, adheres tightly to the outer wall of the solid-liquid separation block, scraping away any residue adhering to its surface as the block rotates. Furthermore, the inclined grooves of the scraper plate and the pressing balls reduce material adhesion to components. This dynamic anti-clogging design effectively prevents filter screen blockage. The absence of slagging not only avoids the hassle of frequent shutdowns for cleaning but also prevents sudden pressure spikes caused by filter pore blockage, reducing the risk of filter screen damage.

[0016] This invention addresses the dynamic changes in reaction force generated by material compression. The spring, through elastic deformation, partially offsets this reaction force in real time, preventing rigid impact on the solid-liquid separation block. Simultaneously, it compensates for minor displacement deviations between the solid-liquid separation block and the elastic cover, ensuring pressure is evenly distributed across all areas of the material. This flexible compensation mechanism effectively prevents increased acid value of the target component due to localized carbonization. Furthermore, the elastic cover's adaptability to deformation and flexible pressure adjustment allows it to accommodate plant materials with varying hardness and moisture content, ranging from soft fruits and vegetables to hard nuts. This enables the processing of multiple material categories without replacing core components, broadening the equipment's application scenarios.

[0017] In summary, the motor-driven solid-liquid separation block, solid-liquid separation strip, and pressing plate dynamically separate materials into solid and liquid components through both scraping and rolling. The rolling pressing balls, in particular, penetrate deep into the material gaps, breaking through the dead zones present in traditional static solid-liquid separation and ensuring efficient and effective separation. The inclined structure of the filter plate, combined with centrifugal force, quickly guides the intercepted residue to the storage box, preventing residue buildup on the filter pore surface. Simultaneously, the elastic cover, under air pressure, adheres tightly to the outer wall of the solid-liquid separation block, scraping away residue adhering to its surface in real time as the block rotates. Furthermore, the inclined grooves of the pressing plate and the pressing balls reduce material adhesion to components. The elastic cover's deformation adaptability and flexible pressure adjustment allow it to accommodate plant materials with varying hardness and moisture content, from soft fruits and vegetables to hard nuts. This enables the processing of multiple material categories without replacing core components, broadening the equipment's application scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this disclosure, the accompanying drawings used in some embodiments will be briefly described below. Obviously, the drawings described below are only drawings of some embodiments of this disclosure, and those skilled in the art can obtain other drawings based on these drawings. In addition, the drawings described below can be regarded as schematic diagrams and are not intended to limit the actual size of the product, the actual flow of the method, the actual timing of the signals, etc. involved in the embodiments of this disclosure.

[0019] Figure 1 This is a front view of the overall structure of the present invention.

[0020] Figure 2 This is a side view of the overall structure of the present invention.

[0021] Figure 3 This is a schematic diagram of the solid-liquid separation block, solid-liquid separation strip, filter basket, grating plate, inner liner cylinder and inclined filter plate of the present invention.

[0022] Figure 4 This is a schematic diagram of the reinforcing column, the first gear, the inner liner, the vertical shaft, the second gear, and the first gear of the present invention.

[0023] Figure 5 This is a schematic diagram of the solid-liquid separation block, solid-liquid separation strip, inclined filter plate, filter basket and baffle plate of the present invention.

[0024] Figure 6 This is a schematic diagram of the hydraulic rod, air pump, and reinforced air guide tube of the present invention.

[0025] Figure 7 This is a schematic diagram of the extrusion disc, reinforcing cylinder, and hollow lead screw of the present invention.

[0026] Figure 8 This is a schematic diagram showing the solid-liquid separation bar, chute, inclined groove, and pressing ball of the present invention installed on the solid-liquid separation block.

[0027] Figure 9 For the present invention Figure 2 A schematic diagram of the local structure at point A in the middle.

[0028] The attached figures are labeled as follows: 1. Support frame; 2. Solid-liquid separation cylinder; 3. Inner liner cylinder; 4. Slag collection box; 5. Filter basket; 6. Inclined filter plate; 7. Solid-liquid separation block; 8. Solid-liquid separation strip; 9. Grate plate; 10. Inclined trough; 11. Pressing ball; 12. Reinforcing cylinder; 13. Extrusion disc; 14. Gas collection chamber; 15. Elastic cover; 16. Inner liner frame; 17. Vertical shaft; 18. Spring; 19. First gear disc; 20. Reinforcing column; 21. Second gear disc; 22. First gear; 23. Motor; 24. Hydraulic rod; 25. Reinforcing air guide cylinder; 26. Hollow screw; 27. Air inlet groove; 28. Air pump; 29. ​​Second gear. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] This embodiment discloses a plant material pressing solid-liquid separation device to prevent filter screen slag buildup, aiming to solve the problem in the existing technology of solid-liquid separation processing of plant materials where residue easily adheres to the filter screen surface, clogging the filter pores and causing a significant decrease in filtration efficiency;

[0031] like Figure 1 As shown, the device uses a support frame 1 as its basic support structure. A solid-liquid separation cylinder 2 is fixedly installed in the middle of the support frame 1 by bolts. The solid-liquid separation cylinder 2 is made of 304 stainless steel, and its inner wall is smooth to reduce material residue. At the bottom of the inner cavity of the solid-liquid separation cylinder 2, an inner liner cylinder 3 is detachably connected by a slot. A slag collection box 4 is welded to the top right side of the inner liner cylinder 3, and its top opening communicates with the inner cavity of the inner liner cylinder 3 for collecting the separated solid residue.

[0032] like Figure 3 , Figure 5 As shown, a filter basket 5 is placed at the top of the inner cavity of the inner liner 3. An inclined filter plate 6 is welded to the bottom of the filter basket 5. The inclined filter plate 6 extends downward at an angle to the opening on one side of the slag storage box 4. The surface of the inclined filter plate 6 is provided with mesh holes to form a two-stage filtration structure.

[0033] like Figure 3 , Figure 8 As shown, a solid-liquid separation block 7 is rotatably connected to the middle of the filter basket 5 via a bearing. The solid-liquid separation block 7 has a conical structure. Several solid-liquid separation strips 8 are uniformly welded along the circumference on the outer side of the solid-liquid separation block 7. The solid-liquid separation strips 8 have an arc-shaped structure, with the arc consistent with the outer arc of the solid-liquid separation block 7. A guide channel is formed between two adjacent solid-liquid separation strips 8, which not only enhances the solid-liquid separation force of the material but also facilitates drainage. Two pressing plates 9 are symmetrically installed on both sides of the bottom of the solid-liquid separation block 7 via pins. Each pressing plate 9 has a sloping groove 10 at its bottom, with the sloping groove 10 having the same length as the pressing plate 9. Several pressing balls 11 are uniformly embedded on one side of each sloping groove 10. Their surfaces are smooth and are movably connected to the pressing plate 9, allowing free rotation and improving the solid-liquid separation effect.

[0034] like Figure 7 As shown, a reinforcing cylinder 12 is provided on the top of the solid-liquid separation block 7. The reinforcing cylinder 12 is a hollow cylinder, and an extrusion plate 13 is welded to the bottom end of the reinforcing cylinder 12. The extrusion plate 13 is a circular steel plate with the same diameter as the filter basket 5. Its bottom surface is provided with spiral convex patterns to enhance the extrusion and pushing effect on the material. A gas-gathering cavity 14 is provided in the middle of the reinforcing cylinder 12. The gas-gathering cavity 14 is an annular cavity. An elastic cover 15 is bonded to the inside of the gas-gathering cavity 14. The elastic cover 15 is made of food-grade silicone material, and several elastic strips are integrally formed on the outer side of the elastic cover 15. The gas-gathering cavity 14 is completely covered on the outside of the solid-liquid separation block 7. The inner wall of the elastic cover 15 and the outer wall of the solid-liquid separation block 7 form a solid-liquid separation cavity.

[0035] like Figure 4 As shown, an inner liner frame 16 is welded inside the inner liner cylinder 3, with a through hole at its center. A vertical shaft 17 is inserted into the through hole, and a spring 18 is sleeved on the outside of the vertical shaft 17. The top of the spring 18 is movably connected to a first gear disc 19 via a bearing. A reinforcing column 20 is welded to the top of the first gear disc 19, and its top is fixedly installed at the bottom center of the solid-liquid separation block 7 by bolts. At the same time, the bottom of the inclined filter plate 6 is fixed to the outside of the reinforcing column 20 by welding, and moves synchronously with the reinforcing column 20.

[0036] A second gear 21 is rotatably connected to the left side of the inner liner 16 via a bearing. A first gear 22 is welded to the top of the second gear 21, and the first gear 22 is coaxially arranged with the second gear 21. A motor 23, model Y132M-4, is fixedly installed on the right side of the inner liner 16 away from the second gear 21 via a motor mount. The output end of the motor 23 is connected to a second gear 29 via a coupling, and the second gear 29 extends above the second gear 21 and meshes with the second gear 21. The top of the first gear 22 extends to the right side of the first gear 19 and meshes with the first gear 19, forming a complete transmission mechanism.

[0037] like Figure 1 , Figure 6 As shown, a hydraulic rod 24 is fixedly installed at the top of the support frame 1 via a crossbeam. The hydraulic rod 24 is a model HOB-100×500, with its output end facing downwards and connected to a reinforcing air guide cylinder 25 via a flange. The reinforcing air guide cylinder 25 is a hollow cylinder, and its outer side is slidably connected to a slide rail on the support frame 1 via a slider, ensuring that the reinforcing air guide cylinder 25 moves stably in the vertical direction when the hydraulic rod 24 is driven. The reinforcing air guide cylinder 25 is located directly above the solid-liquid separation cylinder 2 and is coaxially arranged with the solid-liquid separation block 7.

[0038] An air pump 28, model VAY882, is bolted to the outside of the reinforced air guide tube 25. The output end of the air pump 28 extends into the interior of the reinforced air guide tube 25 via an air pipe. A valve is installed on the air pipe to prevent airflow backflow and facilitate air release. A hollow screw 26 is threaded to the bottom end of the reinforced air guide tube 25. Several air inlet slots 27 are evenly distributed on its outer side. The bottom end of the hollow screw 26 extends to the top opening of the reinforced tube 12 and communicates with the inner cavity of the reinforced tube 12, so that the high-pressure airflow output by the air pump 28 can be transported to the air gathering chamber 14 through the reinforced air guide tube 25, the air inlet slots 27, and the hollow screw 26.

[0039] The specific working principle is as follows, taking soybeans as an example. After the soybeans are washed, dried, and crushed for pretreatment, the top cover of the solid-liquid separation cylinder 2 is opened, and the material is uniformly fed into the filter basket 5. The filter basket 5, as the primary filtration carrier, can initially intercept large impurities. At the same time, the material is evenly spread within the filter basket 5 by the solid-liquid separation block 7, laying the foundation for subsequent uniform solid-liquid separation.

[0040] Start the hydraulic rod 24. The output end of the hydraulic rod 24 pushes the reinforcing air guide cylinder 25 vertically downward along the slide rail of the support frame 1. Since the bottom end of the reinforcing air guide cylinder 25 is fixed to the hollow screw 26 by threads, the hollow screw 26 moves down synchronously and inserts into the top inner cavity of the reinforcing cylinder 12, driving the reinforcing cylinder 12 and the extrusion plate 13 to move closer to the material in the filter basket 5.

[0041] When the spiral ridges at the bottom of the extrusion disc 13 come into contact with the material, they exert downward pressure on the material through extrusion, breaking down the cell wall structure of the soybean and causing the oil inside the cells to initially seep out. On the other hand, as the extrusion disc 13 moves downward, the spiral ridges push the material towards the edge of the filter basket 5, preventing the material from accumulating in the central area. At this time, the seeped oil passes through the mesh of the filter basket 5 due to gravity and enters the gap between the inner liner 3 and the filter basket 5, completing the first stage of filtration.

[0042] While the hydraulic rod 24 continues to apply pressure, the motor 23 is started, which drives the second gear 29 to rotate. Since the second gear 29 meshes with the second gear disk 21, the second gear disk 21 rotates synchronously and drives the coaxial first gear 22 to rotate; the first gear 22 meshes with the first gear disk 19, thereby driving the first gear disk 19 to rotate around the vertical axis 17, ultimately making the first gear disk 19 rotate smoothly.

[0043] The first toothed disc 19 drives the solid-liquid separation block 7 to rotate synchronously via the reinforcing column 20. The arc-shaped solid-liquid separation strips 8 on the outer side of the solid-liquid separation block 7 rotate with it, performing scraping-type solid-liquid separation on the material at the edge of the filter basket 5. The guide channel between adjacent solid-liquid separation strips 8 can guide the grease in the material to the mesh of the filter basket 5, while preventing the material from getting stuck between the solid-liquid separation strips 8 and forming clumps.

[0044] The two chute plates 9 at the bottom of the solid-liquid separation block 7 rotate synchronously with the solid-liquid separation block 7. When the inclined groove 10 at the bottom of the chute plate 9 comes into contact with the material surface, it guides the material toward the inclined filter plate 6. At the same time, the movable pressing ball 11 on one side of the inclined groove 10 rotates freely under the action of material friction, rolling and pressing the material to further squeeze out residual oil. The smooth surface of the pressing ball 11 can prevent the material from sticking together.

[0045] When the first toothed disc 19 rotates, it drives the inclined filter plate 6 to rotate synchronously through the reinforcing column 20. The inclined filter plate 6 performs secondary filtration on the grease after it has been filtered by the filter basket 5, intercepting fine residues; at the same time, the rotating inclined filter plate 6 generates centrifugal force, causing the residues to slide quickly along the inclined surface towards the residue collection box 4, preventing the residues from accumulating on the surface of the filter holes and forming slag, thus ensuring that the filtration channel is always unobstructed.

[0046] During the dynamic solid-liquid separation process, the valve of the air pump 28 is simultaneously opened to deliver high-pressure airflow into the reinforced air guide cylinder 25. After the airflow is gathered in the reinforced air guide cylinder 25, it enters the air gathering chamber 14 of the reinforced cylinder 12 through the air inlet groove 27 on the outside of the hollow screw 26, causing the air pressure in the air gathering chamber 14 to continuously increase.

[0047] As the air pressure inside the gas-gathering chamber 14 increases, the elastic cover 15 expands and deforms. The elastic strips on its outer side adhere tightly to the outer wall of the solid-liquid separation block 7, and perform enveloping solid-liquid separation of the material as the solid-liquid separation block 7 rotates. The elastic strips can penetrate into the gaps between materials to squeeze out residual grease. At the same time, the deformation of the elastic cover 15 can adapt to changes in the compression of the material, avoiding excessive local pressure that could lead to carbonization of the material.

[0048] When the elastic cover 15 is in an expanded state, its inner wall moves relative to the outer wall of the solid-liquid separation block 7, scraping and cleaning the residue adhering to the surface of the solid-liquid separation block 7; at the same time, the annular channel formed between the elastic cover 15 and the solid-liquid separation block 7 can guide the squeezed-out grease to the filter basket 5, further improving the grease recovery rate.

[0049] During solid-liquid separation, the material is compressed, generating an upward reaction force that continues as the material transitions from a loose to a compacted state. At this time, the spring 18, fitted onto the outside of the vertical shaft 17, provides flexible support to the first toothed disc 19 through its elastic deformation, offsetting part of the dynamic reaction force and preventing the solid-liquid separation block 7 from experiencing a rigid impact due to a sudden change in reaction force, thus protecting the equipment components.

[0050] Because uneven compression of materials may occur in some areas during solid-liquid separation, slight displacement deviations may occur between the solid-liquid separation block 7 and the elastic cover 15 in the vertical direction. The elastic deformation of the spring 18 can compensate for this displacement deviation in real time, ensuring stable pressure transmission of the material by the extrusion plate 13, the solid-liquid separation block 7, and the elastic cover 15, avoiding localized inadequate compaction or excessive solid-liquid separation, and improving the uniformity of solid-liquid separation.

[0051] After solid-liquid separation is completed, the valve of air pump 28 is closed to release the air pressure in the gas collection chamber 14, and the elastic cover 15 returns to its natural contraction state; then the motor 23 is turned off, and the first gear plate 19 and the solid-liquid separation block 7 stop rotating; finally, the hydraulic rod 24 is controlled to retract, driving the reinforcing air guide cylinder 25, the hollow screw 26 and the reinforcing cylinder 12 to return to their initial positions.

[0052] Open the side door of the residue box 4 and take out the collected soybean meal residue; at the same time, clean the removable filter basket 5 and the inclined filter plate 6 to remove residual impurities and ensure that the filtration effect is not affected when used next time.

[0053] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A plant material pressing solid-liquid separation device for preventing filter screen caking, comprising a support frame (1), characterized in that: The support frame (1) is provided with a separation component; The separation assembly includes a solid-liquid separation cylinder (2) disposed in the middle of the support frame (1), an inner liner cylinder (3) is provided at the bottom of the inner cavity of the solid-liquid separation cylinder (2), and a slag storage box (4) is provided on one side of the top of the inner liner cylinder (3). The inner cavity of the inner liner (3) is provided with a filter basket (5) at the top and an inclined filter plate (6) at the bottom of the filter basket (5). The inclined filter plate (6) is inclined downward and extends to one side of the slag box (4). The filter basket (5) is rotatably connected to a solid-liquid separation block (7), and a number of solid-liquid separation strips (8) are fixedly arranged on the outside of the solid-liquid separation block (7). The bottom sides of the solid-liquid separation block (7) are respectively provided with a baffle plate (9). The solid-liquid separation block (7) is provided with a reinforcing cylinder (12) at the top, and a squeezing disc (13) is provided at the bottom end of the reinforcing cylinder (12). A gas-gathering cavity (14) is provided in the middle of the reinforcing cylinder (12). An elastic covering (15) is provided inside the gas-gathering cavity (14). Several elastic strips are provided on the elastic covering (15), and the gas-gathering cavity (14) covers the outside of the solid-liquid separation block (7). The top of the support frame (1) is provided with a hydraulic rod (24), and the output end of the hydraulic rod (24) is provided with a reinforcing air guide cylinder (25). The reinforcing air guide cylinder (25) is slidably connected to the support frame (1), and the reinforcing air guide cylinder (25) is located above the solid-liquid separation cylinder (2). An air pump (28) is provided on the reinforced air guide cylinder (25). The output end of the air pump (28) extends into the reinforced air guide cylinder (25). A hollow screw (26) is threaded to the bottom end of the reinforced air guide cylinder (25). The hollow screw (26) is located at the top of the reinforced cylinder (12), and several air inlet slots (27) are opened on the outer side of the hollow screw (26).

2. The plant material pressing solid-liquid separation device for preventing filter screen slagging according to claim 1, characterized in that: The bottom of each of the two grating plates (9) is provided with a sloping groove (10), and a number of pressing balls (11) are provided on one side of each sloping groove (10). The pressing balls (11) are embedded in the grating plate (9) and are movably connected to the grating plate (9).

3. The plant material pressing solid-liquid separation device for preventing filter screen slagging according to claim 1, characterized in that: The inner liner (3) is provided with an inner liner frame (16), a vertical shaft (17) is inserted into the inner liner frame (16), a spring (18) is sleeved on the outside of the vertical shaft (17), and a first toothed disc (19) is movably connected to the top of the spring (18).

4. The plant material pressing solid-liquid separation device for preventing filter screen slagging according to claim 3, characterized in that: The top of the first toothed disc (19) is provided with a reinforcing column (20), the top of the reinforcing column (20) is installed on the solid-liquid separation block (7) by bolts, and the inclined filter plate (6) is fixed on the outside of the reinforcing column (20).

5. A plant-based material pressing solid-liquid separation device for preventing filter screen slagging according to claim 4, characterized in that: A second gear (21) is rotatably connected to one side of the inner liner (16), and a first gear (22) is provided on the top of the second gear (21). A motor (23) is provided on the side of the inner liner (16) away from the second gear (21), and a second gear (29) is provided at the output end of the motor (23).

6. A plant-based material pressing solid-liquid separation device for preventing filter screen slagging according to claim 5, characterized in that: The second gear (29) extends to the second gear disk (21) and meshes with the second gear disk (21), and the top of the first gear (22) extends to one side of the first gear disk (19) and meshes with the first gear disk (19).

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