Multi-stage pressurized filter cartridge structure of vinegar residue extrusion dewatering machine

Abstract

This utility model relates to solid-liquid separation equipment technology, and discloses a multi-stage pressurized filter cylinder structure for a vinegar residue extrusion dewatering machine. It includes a base plate, a support fixedly connected to the rear top of the base plate, a hydraulic assembly fixedly connected to the inner top wall of the support, a connecting base slidably connected to the center of the top of the base plate, a liquid collection tank fixedly connected to the top of the connecting base, a motor fixedly connected to a groove in the top of the connecting base, and a connecting shaft fixedly installed at the output end of the motor. In this utility model, the motor drives the connecting shaft to rotate, causing the connecting plate and adjusting components to rotate around the fixed filter cylinder. When the adjusting components rotate, they block the filter holes, allowing for rapid adjustment of the filter hole diameters of multiple filter cylinders according to different materials and processing levels. This ensures that different sized particles remain in the corresponding filter cylinders during the extrusion filtration of the vinegar residue, achieving precise filtration and solving the problem of not being able to quickly and accurately adjust the filter hole diameter for the dewatered material.

Description

Technical Field

[0001] This utility model relates to solid-liquid separation equipment technology, and in particular to a multi-stage pressurized filter cartridge structure for a vinegar residue extrusion dewatering machine. Background Technology

[0002] Vinegar lees are a byproduct of vinegar brewing. They are rich in water, organic matter, and certain nutrients. Fresh vinegar lees typically have a water content of around 70%-85%. This high water content not only results in a large volume of vinegar lees, occupying a lot of storage space, but also makes them prone to bacterial and mold growth, leading to spoilage, foul odors, and environmental pollution. Furthermore, high water content makes vinegar lees unsuitable for subsequent processing and utilization. For example, when used as feed, fertilizer, or biomass energy raw material, excessive moisture will affect its quality and utilization efficiency. Therefore, dehydration treatment of vinegar lees is necessary.

[0003] A search revealed Chinese patent publication number CN222560440U, which discloses an extrusion dewatering machine. This machine includes a base, a rotating disc, a drive motor, a column, an extrusion piston, and three dewatering components. Each dewatering component includes a support block, a first sliding block, a second sliding block, a dewatering cylinder, a first hinge shaft, a second hinge shaft, and a tilting motor. The column is mounted on the base, and a hydraulic cylinder body is fixed to the upper end of the column. An extrusion piston is mounted on the piston rod of the hydraulic cylinder. When the extrusion piston slides within the dewatering cylinder, it extrudes and dewaters the material. This extrusion dewatering machine utilizes a vertically moving extrusion piston to dewater the material. By controlling the extrusion pressure and duration, the degree of dewatering can be effectively adjusted. Furthermore, the three-station setup enables continuous production and high efficiency.

[0004] While existing extrusion dewatering devices can effectively dewater materials, they cannot quickly adjust the filter pore size according to the size of the material to be dewatered, thus failing to achieve efficient dewatering when extruding and dewatering vinegar residue. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a multi-stage pressurized filter cylinder structure for a vinegar residue extrusion dewatering machine, which aims to improve the problem of not being able to quickly and accurately adjust the filter hole diameter for the dewatered material.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a multi-stage pressurized filter cylinder structure for a vinegar residue extrusion dewatering machine, comprising a base plate, a bracket fixedly connected to the rear top of the base plate, a hydraulic component fixedly connected to the inner top wall of the bracket, a connecting base slidably connected to the center of the top of the base plate, a liquid collection tank fixedly connected to the top of the connecting base, a motor fixedly connected to the groove at the top of the connecting base, a connecting shaft fixedly installed at the output end of the motor, a connecting ring fixedly connected to the top of the motor, three filter cylinders arranged at the bottom inside the liquid collection tank, a connecting plate arranged at the bottom of each of the three filter cylinders, an adjusting component fixedly connected to the top of each of the three connecting plates, filter holes opened on the surface of each of the three filter cylinders, and a cleaning component arranged at the top of the connecting base.

[0007] The above technical solution utilizes a base plate as the fundamental support structure. Its top rear bracket provides a stable mounting foundation for the hydraulic components, which apply a squeezing force to the vinegar residue inside the filter cartridges. The sliding connection between the base and the base plate allows for flexible positioning of the liquid collection tank, facilitating subsequent cleaning or material handling. The motor is installed in a groove in the connecting base, and its output shaft is fixed to the connecting plate. When the motor operates, it drives the connecting plate and adjusting components to rotate around the filter cartridges. The three filter cartridges are fixed to the top of the motor via connecting rings, forming a stationary filtration unit. The rotating adjusting components dynamically change the pore size by blocking the filter holes. This structural design overcomes the limitations of traditional fixed-pore filter cartridges, allowing for rapid adjustment of filtration precision based on the humidity and particle size characteristics of the vinegar residue. This enables differentiated filtration of materials with different dewatering requirements within the multi-stage filter cartridges. Liquid flows through the filter holes into the liquid collection tank and is discharged, while solids remain in the corresponding filter cartridges according to their particle size, effectively improving the adaptability and efficiency of the dewatering process.

[0008] As a further description of the above technical solution:

[0009] The cleaning assembly includes a cylinder, which is fixedly connected to a connecting base. A rotary controller is fixedly connected to the top of the cylinder, and a connecting rod is fixedly connected to the bottom of the rotary controller. Multiple high-pressure nozzles are fixedly connected to the bottom of the connecting rod, and a first water pump and a second water pump are fixedly connected to the top corner of the connecting base.

[0010] Through the above technical solution, the structural design of the cleaning component achieves an innovative automated cleaning function. The cylinder is fixed on the connecting base, and its extension and retraction can drive the rotary controller to move vertically. The rotary controller is connected to the high-pressure nozzle via a connecting rod, forming a lifting and rotating cleaning unit. The first and second water pumps at the corners of the connecting base are responsible for delivering clean water and cleaning fluid to the high-pressure nozzle, respectively. After the squeezing operation is completed, the cylinder first lifts the rotary controller, causing the high-pressure nozzle to move with the connecting rod to the top of the filter cartridge and liquid collection tank. Then, the rotary controller starts rotating, driving the high-pressure nozzle to cut into the filter cartridge and liquid collection tank. The gap between the filter cartridge and the collection tank allows the water pump to operate sequentially, spraying high-pressure water and cleaning solution onto the inner wall through the nozzle. Combined with the downward movement of the cylinder, this covers the bottom of the filter cartridge and the entire inner wall of the liquid collection tank. The 360-degree rotation of the connecting rod ensures thorough cleaning without any blind spots, preventing vinegar residue from clogging the filter holes. After cleaning, the cylinder lifts the cleaning components and stores them outside the liquid collection tank. This integrated design eliminates the need for manual disassembly of the filter cartridge, completing the cleaning process automatically. This improves equipment maintenance efficiency, reduces manual operation costs, and effectively solves the problem of cumbersome cleaning in traditional dehydration equipment.

[0011] As a further description of the above technical solution:

[0012] The hydraulic assembly includes a hydraulic cylinder, which is fixedly connected to a bracket. Three extrusion blocks are fixedly connected to the bottom of the hydraulic cylinder, and five pressure sensors are provided at the bottom of the three extrusion blocks.

[0013] The above technical solution involves fixing the hydraulic cylinder to the support in the hydraulic assembly. The three extrusion blocks at the bottom are shaped to fit the gaps in the filter cartridge. During operation, the hydraulic cylinder pushes the extrusion blocks downward from the inside to the outside, extruding the vinegar residue in the filter cartridge in sequence. The pressure sensor at the bottom detects the real-time pressure, making it easy to monitor the extrusion effect and realize the multi-stage pressure extrusion function.

[0014] As a further description of the above technical solution:

[0015] The three filter cartridges are arranged concentrically in the liquid collection tank, and the filter holes on the inner and outer surfaces of the three filter cartridges become smaller and smaller.

[0016] The above technical solution involves three filter cartridges nested concentrically inside a liquid collection tank, with the pore size decreasing from the inside to the outside. When the vinegar residue is squeezed in the central filter cartridge, water and small particles flow through the pores into the outer filter cartridge. Through multi-layer filtration and squeezing, solid-liquid separation and graded treatment are achieved. Compared with single-stage filtration, this improves dehydration efficiency and treatment effect.

[0017] As a further description of the above technical solution:

[0018] The adjacent filter cartridges and adjusting components are slidably connected, and the connecting plate is rotatably connected to the filter cartridges.

[0019] Through the above technical solution: adjacent filter cartridges and adjusting components are slidably connected, and the connecting plate is rotatably engaged with the filter cartridge. Each filter cartridge is equipped with an adjusting component and a connecting plate, the size of which increases with the size of the filter cartridge. This structure allows the adjusting component to rotate around the filter cartridge to adjust the degree of filter hole occlusion, meet the needs of different material processing, achieve flexible control, and improve the adaptability and practicality of the equipment.

[0020] As a further description of the above technical solution:

[0021] The connecting shaft is fixedly connected to the connecting plate, and the connecting ring is fixedly connected to the filter cartridge.

[0022] The above technical solution involves fixing the connecting shaft to the connecting plate and the connecting ring to the filter cartridge. After the motor starts, the connecting shaft rotates, and because the connecting ring is fixed, it drives the connecting plate to rotate around the stationary filter cartridge. This structure, through a combination of static and dynamic elements, achieves dynamic adjustment of the filter cartridge's filter holes by the adjusting components.

[0023] As a further description of the above technical solution:

[0024] The three extrusion blocks are concentrically nested, the four pressure sensors are fixedly connected to the two outer extrusion blocks, and the one pressure sensor is fixedly connected to the central extrusion block.

[0025] The above technical solution involves three concentrically nested extrusion blocks, with pressure sensors fixed to each block. The shape of the extrusion blocks is adapted to the gap between the filter cartridges, allowing for precise application of the vinegar residue between each filter cartridge during extrusion. The pressure sensors monitor pressure changes in real time, facilitating control of the extrusion process and enabling effective extrusion and dehydration of the vinegar residue at different filter cartridge levels, thus optimizing the overall processing flow.

[0026] As a further description of the above technical solution:

[0027] The bottom of the four high-pressure nozzles extends into the liquid collection tank and the filter cartridge, and the four high-pressure nozzles are respectively set in the gap between the filter cartridge and the liquid collection tank.

[0028] The above technical solution involves placing four high-pressure nozzles in the gap between the liquid collection tank and the filter cartridge, with their bottoms extending deep inside. The cylinder extends and retracts, and the connecting rod rotates, driving the nozzles to rotate around the center, thus achieving all-round cleaning of the inner walls of the liquid collection tank and the filter cartridge. This design avoids manual disassembly and cleaning, simplifying the maintenance process.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the connecting shaft is driven by a motor to rotate, causing the connecting plate and adjusting component to rotate around the fixed filter cylinder. When the adjusting component rotates, it blocks the filter holes. The filter hole diameter of multiple filter cylinders can be quickly adjusted according to different materials and processing degrees. This allows different sized particles to remain in the corresponding filter cylinders during the squeezing and filtration of vinegar residue, achieving precise filtration and solving the problem of not being able to quickly and accurately adjust the filter hole diameter for the dehydrated material.

[0031] 2. In this utility model, after the cylinder drives the rotary controller to move, the height exceeds the liquid collection tank. After the high-pressure nozzle is rotated by the rotary controller, it extends into the gap between the filter cartridge and the collection tank. The water pump delivers water and cleaning liquid. With the extension and retraction of the cylinder and the rotation of the connecting rod, the nozzle cleans the inner wall 360 degrees. After cleaning, the parts can be stored, which solves the problem of troublesome cleaning inside the filter cartridge after dehydrating the vinegar residue. Attached Figure Description

[0032] Figure 1 This is a perspective view of the multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine proposed in this utility model;

[0033] Figure 2 This is a schematic diagram of the hydraulic cylinder of the filter cartridge structure of the vinegar residue extrusion dewatering machine proposed in this utility model;

[0034] Figure 3 This is a schematic diagram of the connecting shaft of the multi-stage pressure filter cylinder structure of the vinegar residue extrusion dewatering machine proposed in this utility model;

[0035] Figure 4 A schematic diagram of the hydraulic cylinder of the multi-stage pressure boosting filter cartridge structure of the vinegar residue extrusion dewatering machine proposed in this utility model;

[0036] Figure 5 This is a schematic diagram of the high-pressure nozzle of the multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine proposed in this utility model.

[0037] Legend:

[0038] 1. Base plate; 2. Bracket; 3. Hydraulic components; 301. Hydraulic cylinder; 302. Extrusion block; 303. Pressure sensor; 4. Connecting base; 5. Liquid collection tank; 6. Filter cartridge; 7. Adjusting component; 8. Connecting plate; 9. Filter hole; 10. Connecting ring; 11. Connecting shaft; 12. Motor; 13. Cleaning components; 1301. Cylinder; 1302. First water pump; 1303. Second water pump; 1304. Rotation controller; 1305. Connecting rod; 1306. High-pressure nozzle. Detailed Implementation

[0039] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0040] Reference Figures 1-3 An embodiment of this utility model provides a multi-stage pressurized filter cylinder structure for a vinegar residue extrusion dewatering machine, including a base plate 1, a bracket 2 fixedly connected to the top rear part of the base plate 1, a hydraulic component 3 fixedly connected to the inner top wall of the bracket 2, a connecting base 4 slidably connected to the center position of the top of the base plate 1, a liquid collection tank 5 fixedly connected to the top of the connecting base 4, a motor 12 fixedly connected to the groove at the top of the connecting base 4, a connecting shaft 11 fixedly provided at the output end of the motor 12, a connecting ring 10 fixedly connected to the top of the motor 12, three filter cylinders 6 provided at the bottom inside the liquid collection tank 5, a connecting plate 8 provided at the bottom of each of the three filter cylinders 6, an adjusting component 7 fixedly connected to the top of each of the three connecting plates 8, filter holes 9 opened on the surface of each of the three filter cylinders 6, and a cleaning component 13 provided at the top of the connecting base 4;

[0041] Specifically, the rotation of motor 12 drives the connecting shaft 11 to rotate. Since the connecting shaft 11 is fixedly connected to the three connecting plates 8, the three connecting plates 8 and the adjusting component 7 are also driven to rotate. The three filter cartridges 6 are fixedly connected to the connecting ring 10, and the connecting ring 10 is fixedly connected to motor 12. Therefore, even when the filter cartridges 6 are stationary, the connecting plates 8 and the adjusting component 7 are driven to rotate around the filter cartridges 6. When the adjusting component 7 rotates, it blocks the filter holes 9 on the outer surface of the filter cartridges 6, causing the diameter of the filter holes 9 to decrease. During the filtration of vinegar residue, the pore size of the filter holes 9 in the multiple filter cylinders 6 is quickly adjusted according to the different materials being processed and the degree of processing. Finally, the vinegar residue is placed in the central filter cylinder 6. After being squeezed by the hydraulic component 3 and filtered by the multiple filter cylinders 6 and filter holes 9, the liquid part flows into the liquid collection tank 5 and is discharged through the drain port on the liquid collection tank 5. The vinegar residue is left in different filter cylinders 6 from large to small, which solves the problem of not being able to quickly and accurately adjust the pore size of the filter holes 7 for the dehydrated material.

[0042] Reference Figure 5The cleaning component 13 includes a cylinder 1301, which is fixedly connected to the connecting base 4. A rotation controller 1304 is fixedly connected to the top of the cylinder 1301, and a connecting rod 1305 is fixedly connected to the bottom of the rotation controller 1304. Multiple high-pressure nozzles 1306 are fixedly connected to the bottom of the connecting rod 1305. A first water pump 1302 and a second water pump 1303 are fixedly connected to the top corner of the connecting base 4.

[0043] Specifically, after the extrusion process is completed, cylinder 1301 starts, driving rotary controller 1304 to move upward. Connecting rod 1305 and high-pressure nozzle 1306 are brought to the top of liquid collection tank 5 and filter cartridge 6 by the rotation of rotary controller 1304. Then, first water pump 1302 and second water pump 1303 start sequentially, delivering water and cleaning fluid to high-pressure nozzle 1306. The high-pressure water jet from high-pressure nozzle 1306 cleans the inner walls of liquid collection tank 5 and filter cartridge 6. At the same time, high-pressure nozzle 1306 can be activated by cylinder 1301. The downward movement of the cylinder 1305 cleans the bottom of the inner walls of the liquid collection tank 5 and the filter cartridge 6. At the same time, the connecting rod 1305 can be rotated around the liquid collection tank 5 and the filter cartridge 6 by the rotary controller 1304, cleaning the inner walls of the liquid collection tank 5 and the filter cartridge 6 360 degrees. After cleaning, the high-pressure nozzle 1306, the connecting rod 1305 and the rotary controller 1304 are lifted again by the cylinder 1301 and then moved down, stored on one side of the outside of the liquid collection tank 5. This solves the problem of troublesome cleaning of the inside of the filter cartridge 6 after dehydrating the vinegar residue.

[0044] Reference Figure 4 The hydraulic component 3 includes a hydraulic cylinder 301, which is fixedly connected to the bracket 2. Three extrusion blocks 302 are fixedly connected to the bottom of the hydraulic cylinder 301, and five pressure sensors 303 are provided at the bottom of the three extrusion blocks 302.

[0045] Specifically, the shape of the hydraulic component 3 is the same as the shape of the gap between the multiple filter cartridges 6. When the hydraulic component 3 is pushed by the hydraulic cylinder 301 to move downwards from the inside to the outside, it squeezes the vinegar residue in the filter cartridges 6 in sequence. The pressure sensor 303 at the bottom of the hydraulic component 3 is used to detect the real-time pressure so as to observe the squeezing effect.

[0046] Reference Figure 2 Three filter cartridges 6 are nested concentrically in the liquid collection tank 5, and the filter holes 9 on the inner and outer surfaces of the three filter cartridges 6 become smaller and smaller.

[0047] Specifically, by setting up three concentric nested filter cylinders 6, the vinegar residue is squeezed in the center, and the water in it and the vinegar residue smaller than the filter holes 9 on the center filter cylinder 6 flow to the outer filter cylinder 6 through the squeeze. After repeated operation, the vinegar residue is finally fully squeezed.

[0048] Reference Figure 2 The adjacent filter cartridges 6 and the adjusting component 7 are slidably connected, and the connecting plate 8 and the filter cartridges 6 are rotatably connected;

[0049] Specifically, each filter cartridge 6 is provided with a corresponding adjusting component 7 and a connecting plate 8 on its outer side, wherein the diameter of the adjusting component 7 and the connecting plate 8 increases as the filter cartridge 6 is enlarged.

[0050] Reference Figure 3 The connecting shaft 11 is fixedly connected to the connecting plate 8, and the connecting ring 10 is fixedly connected to the filter cartridge 6;

[0051] Specifically, when the motor 12 starts, it drives the connecting shaft 11 to rotate. Since the connecting ring 10 is fixedly connected to the top of the motor 12, the connecting ring 10 remains stationary, thereby causing the connecting plate 8 to rotate while the filter cartridge 6 remains stationary.

[0052] Reference Figure 4 The three extrusion blocks 302 are concentrically nested, the four pressure sensors 303 are fixedly connected to the two extrusion blocks 302 on the outer ring, and the pressure sensor 303 is fixedly connected to the central extrusion block 302.

[0053] Specifically, since the three extrusion blocks 302 fit the gap between the three filter cylinders 6, the three extrusion blocks 302 can extrude vinegar residue between the filter cylinders 6. During the extrusion process, the pressure sensor 303 set at the bottom of the extrusion block 302 detects the real-time pressure.

[0054] Reference Figure 5 The bottom of the four high-pressure nozzles 1306 are inserted into the liquid collection tank 5 and the filter cartridge 6. The four high-pressure nozzles 1306 are respectively set in the gap between the filter cartridge 6 and the liquid collection tank 5.

[0055] Specifically, when the four high-pressure nozzles 1306 are inserted between the filter cartridge 6 and the liquid collection tank 5, the extension and retraction of the cylinder 1301 and the rotation of the connecting rod 1305 drive the four high-pressure nozzles 1306 to rotate around the center of the liquid collection tank 5 and the filter cartridge 6, thereby thoroughly cleaning the inner walls of the liquid collection tank 5 and the filter cartridge 6.

[0056] Working principle: When the extrusion dewatering is performed, the motor 12 at the top of the base plate 1 starts and the connecting shaft 11 at its output end rotates accordingly. Since the connecting shaft 11 is fixedly connected to the three connecting plates 8, the connecting plates 8 will drive the adjusting component 7 to rotate around the filter cylinder 6. The filter cylinder 6 is fixed to the top of the motor 12 through the connecting ring 10 and is in a stationary state. When the adjusting component 7 rotates, it will block the filter holes 9 on the outer surface of the filter cylinder 6, thereby changing the size of the filter holes 9. In this way, when filtering vinegar residue, the size of the filter holes 9 of multiple filter cylinders 6 can be quickly adjusted according to the difference in material type and processing requirements, so that under the extrusion of the hydraulic component 3, particles of different sizes of vinegar residue can remain in different filter cylinders 6, achieving targeted filtration.

[0057] After the extrusion operation is completed, the cylinder 1301 on the connecting base 4 is activated, driving the rotary controller 1304 to move upward, thereby moving the connecting rod 1305 and the high-pressure nozzle 1306 to the top of the liquid collection tank 5 and the filter cartridge 6. Then, the first water pump 1302 and the second water pump 1303 are activated in sequence to deliver water and cleaning fluid to the high-pressure nozzle 1306. The high-pressure nozzle 1306 sprays water, while the cylinder 1301 drives it to move downward. The rotary controller 1304 drives the connecting rod 1305 to rotate, so that the high-pressure nozzle 1306 performs a 360-degree cleaning on the inner wall of the liquid collection tank 5 and the filter cartridge 6. After cleaning, the cylinder 1301 drives the relevant components to lift and move downward, storing them on the outside of the liquid collection tank 5 to ensure that the device is clean and does not affect subsequent use.

[0058] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. The multi-stage pressurization filter cartridge structure of the vinegar residue extrusion dewatering machine, comprising a bottom plate (1), characterized in that: A bracket (2) is fixedly connected to the rear top of the base plate (1). A hydraulic component (3) is fixedly connected to the inner top wall of the bracket (2). A connecting base (4) is slidably connected to the center of the top of the base plate (1). A liquid collection tank (5) is fixedly connected to the top of the connecting base (4). A motor (12) is fixedly connected to the groove at the top of the connecting base (4). A connecting shaft (11) is fixedly installed at the output end of the motor (12). A connecting ring (10) is fixedly connected to the top of the motor (12). Three filter cylinders (6) are installed at the bottom inside the liquid collection tank (5). A connecting plate (8) is installed at the bottom of each of the three filter cylinders (6). An adjusting component (7) is fixedly connected to the top of each of the three connecting plates (8). Filter holes (9) are opened on the surface of each of the three filter cylinders (6). A cleaning component (13) is installed at the top of the connecting base (4).

2. The multi-stage pressurized filter cartridge structure of the vinasse expeller dewaterer according to claim 1, characterized in that: The cleaning component (13) includes a cylinder (1301), which is fixedly connected to the connecting base (4). A rotary controller (1304) is fixedly connected to the top of the cylinder (1301), and a connecting rod (1305) is fixedly connected to the bottom of the rotary controller (1304). Multiple high-pressure nozzles (1306) are fixedly connected to the bottom of the connecting rod (1305). A first water pump (1302) and a second water pump (1303) are fixedly connected to the top corner of the connecting base (4).

3. The multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine according to claim 1, characterized in that: The hydraulic assembly (3) includes a hydraulic cylinder (301), which is fixedly connected to the bracket (2). Three extrusion blocks (302) are fixedly connected to the bottom of the hydraulic cylinder (301), and five pressure sensors (303) are provided at the bottom of the three extrusion blocks (302).

4. The multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine according to claim 1, characterized in that: The three filter cartridges (6) are arranged in a concentric nested arrangement in the liquid collection tank (5), and the filter holes (9) on the inner and outer surfaces of the three filter cartridges (6) become smaller and smaller.

5. The multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine according to claim 1, characterized in that: The adjacent filter cartridges (6) are slidably connected to the adjusting member (7), and the connecting plate (8) is rotatably connected to the filter cartridges (6).

6. The multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine according to claim 1, characterized in that: The connecting shaft (11) is fixedly connected to the connecting plate (8), and the connecting ring (10) is fixedly connected to the filter cartridge (6).

7. The multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine according to claim 3, characterized in that: The three extrusion blocks (302) are concentrically nested, the four pressure sensors (303) are fixedly connected to the two extrusion blocks (302) on the outer ring, and one pressure sensor (303) is fixedly connected to the central extrusion block (302).

8. The multi-stage pressurized filter cartridge structure of the vinegar residue extrusion dewatering machine according to claim 2, characterized in that: The bottoms of the four high-pressure nozzles (1306) are inserted into the liquid collection tank (5) and the filter cartridge (6), and the four high-pressure nozzles (1306) are respectively set in the gap between the filter cartridge (6) and the liquid collection tank (5).

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