Two-stage rhizoma alismatis cleaning device based on high-pressure water jet technology

Abstract

The invention discloses a two-stage rhizoma alismatis cleaning device based on a high-pressure water jet technology, and relates to the technical field of rhizoma alismatis cleaning, the two-stage rhizoma alismatis cleaning device comprises a second-stage cleaning module, the second-stage cleaning module comprises an inner cylinder, an outer cylinder and a high-pressure water jet module, at least one middle cylinder is arranged between the inner cylinder and the outer cylinder, and the high-pressure water jet module is arranged in the middle of the inner cylinder. The axes of the inner cylinder, the outer cylinder and the middle cylinder coincide, the inner cylinder is nested in the middle cylinder, the middle cylinder is nested in the outer cylinder, an annular gap is formed between every two adjacent cylinders, rhizoma alismatis enters the annular gaps through the grading conveying assembly, and the high-pressure water jet module flushes the rhizoma alismatis entering the annular gaps. The rollers on the two sides of the annular gap rotate reversely to rub the rhizoma alismatis, soil between the tuberous roots and fibrous roots is rubbed to be scattered, and the technical problem that the tuberous roots are difficult to separate from sludge and fibrous roots due to the fact that planting soil of the rhizoma alismatis in Sichuan is sticky and wet soil, the root system is developed and is tightly combined with the soil is solved in cooperation with cleaning of the high-pressure water jet module.

Description

Technical Field

[0001] This invention relates to the field of Alisma plantago-aquatica cleaning, and more specifically, to a two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology. Background Technology

[0002] Alisma or waterlogged mud thrives in marshes and is planted after the rice harvest in August each year, and harvested between December of that year and January of the following year, forming a closed-loop crop rotation with rice. Therefore, the industrialization of Alisma or waterlogged will be more promising under the rice-Alisma or waterlogged rotation model.

[0003] The soil for planting Alisma plantago-aquatica is a typical clayey and moist soil, characterized by fine particles, high plasticity, low porosity, poor drainage, and strong shear resistance. On the other hand, Alisma plantago-aquatica has a well-developed root system with a complex and varied distribution structure, tightly bound to the clayey soil to form a soil-root complex. The clayey soil has a high affinity for Alisma plantago-aquatica and strong shearing ability, making it extremely difficult to separate the tuberous roots from the silt and fibrous roots. Summary of the Invention

[0004] One objective of this invention is to provide a two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology. By having the rollers on both sides of the annular gap of the nested rollers rotate in opposite directions, a circumferential shear force field is formed within the annular gap. At the same time, it can also rub the Alisma plantago-aquatica, breaking up the soil between the tuberous roots and fibrous roots. Combined with the cleaning effect of the high-pressure water jet module, this solves the technical problem of difficulty in separating the tuberous roots from the silt and fibrous roots of Alisma plantago-aquatica, which is planted in clayey and moist soil and has a well-developed root system that is tightly bound to the soil.

[0005] This objective is achieved using the following technical solution:

[0006] A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology includes a two-stage cleaning module. The two-stage cleaning module comprises an inner cylinder, an outer cylinder, and a high-pressure water jet module. At least one intermediate cylinder is disposed between the inner and outer cylinders. The axes of the inner, outer, and intermediate cylinders coincide. The inner cylinder is nested within the intermediate cylinder, and the intermediate cylinder is nested within the outer cylinder. An annular gap exists between adjacent cylinders. The Alisma plantago-aquatica is transported to the annular gap via a graded transport component. The high-pressure water jet module sprays and washes the Alisma plantago-aquatica into the annular gap through high-pressure nozzles on the cylinder wall. The adjacent cylinders rotate in opposite directions, thus moving relative to each other within the annular gap, forming a circumferential shear force field. Simultaneously, this shear force and rubbing action effectively break the tight bond between the tuberous roots and fibrous roots of Alisma plantago-aquatica, as well as between the tuberous roots and the soil, separating the Alisma plantago-aquatica from the soil. Combined with the powerful rinsing of the high-pressure water jet, it can more thoroughly remove soil, fibrous roots, and other impurities from the surface and root system of Alisma plantago-aquatica, significantly reducing the impurity residue rate and ensuring medicinal value and safety.

[0007] Compared to existing devices, most existing Alisma plantago-aquatica cleaning devices are single-drum or mesh belt conveyor cleaning machines. The main body of the single-drum cleaning machine is a rotating drum, which completes the rinsing by spraying with high-pressure nozzles. However, the clayey soil of Alisma plantago-aquatica has strong plasticity and high shear resistance, and forms a tightly intertwined complex with the well-developed fibrous roots. Unidirectional friction cannot generate enough shear force to destroy the complex structure. It can only remove the extremely loose soil on the surface. The clayey soil in the crevices of the fibrous roots and the folds of the tuberous roots is still tightly attached, and may even be compacted and embedded deeper by the rotation of the drum. The high-pressure spray of the mesh belt conveyor cleaning machine is perpendicular to the mesh belt, and the impact force is concentrated on the surface of the tuberous roots. It does not cover the root crevices well enough, and there are serious blind spots in cleaning the root crevices and hidden parts, resulting in low cleaning efficiency.

[0008] This invention allows Alisma plantago-aquatica to enter the annular gap of nested rollers. As the adjacent rollers on both sides of the annular gap rotate in opposite directions, Alisma plantago-aquatica is simultaneously subjected to the reverse frictional force of the two roller walls on the surface of the soil-root complex. This causes the sticky soil between the fibrous roots to be broken apart by shear force, solving the problem that traditional unidirectional friction cannot break through the bonding force of the complex. Combined with the flushing of the high-pressure water jet module, Alisma plantago-aquatica is separated from the soil.

[0009] Furthermore, the graded transport assembly includes a primary roller transport component, a secondary roller transport component, and a tertiary roller transport component. One end of each of the primary, secondary, and tertiary roller transport components abuts against the inlet of the annular gap. Each of the primary, secondary, and tertiary roller transport components includes several rollers. The multi-stage roller transport components transport the water plantain after it has been cleaned by the first cleaning module. The axial directions of the several rollers are parallel, and the primary, secondary, and tertiary roller transport components are arranged vertically from top to bottom. The water plantain after being cleaned by the primary cleaning module first enters the uppermost primary roller transport assembly. The adjacent primary roller transport components... The roller spacing is 7-8cm. Large-sized water chestnuts (greater than 8cm) are intercepted by the rollers of the primary roller transport assembly and transported to a designated annular gap for rubbing and cleaning. Water chestnuts smaller than 8cm fall through the gap of the primary roller transport assembly to the secondary roller transport assembly. The spacing between adjacent rollers in the secondary roller transport assembly is 5-6cm. Medium-sized water chestnuts are intercepted and transported by the secondary rollers. Water chestnuts smaller than 5cm continue to fall to the tertiary roller transport assembly. The spacing between adjacent rollers in the tertiary roller transport assembly is 3-4cm. Small-sized water chestnuts are transported by the tertiary rollers to a designated annular gap for rubbing and cleaning. Implementing graded rubbing and cleaning for water chestnuts of different sizes can significantly improve the cleaning effect and processing quality.

[0010] Furthermore, the width of the annular gap abutting with the primary roller conveyor is 8-9 cm, the width of the annular gap abutting with the secondary roller conveyor is 6-7 cm, and the width of the annular gap abutting with the tertiary roller conveyor is 4-5 cm. The width of the annular gap corresponds to a diameter of about 1 cm larger than that of the transported Alisma plantago-aquatica. This ensures that Alisma plantago-aquatica of the corresponding diameter can smoothly enter the gap, while avoiding the problem that when the annular gap is too wide, the Alisma plantago-aquatica will not be able to form effective compression and friction in the annular gap, resulting in insufficient kneading force.

[0011] Furthermore, spiral blades are fixedly connected to the inner sides of the outer cylinder and the middle cylinder. When the cylinder rotates, the spiral blades rotate synchronously with the cylinder. When the outer cylinder or the middle cylinder rotates clockwise, the spiral blades rotate clockwise. The clockwise spiral blades, in conjunction with the clockwise rotation of the cylinder, generate a thrust along the axial direction of the cylinder on the contacting Alisma plantago-aquatica. Under the combined action of gravity and the friction of the cylinder wall, the Alisma plantago-aquatica is pushed forward by the inclined surface of the spiral blades. When the outer cylinder or the middle cylinder rotates counterclockwise, the spiral blades rotate counterclockwise. The counterclockwise spiral blades, in conjunction with the counterclockwise rotation of the cylinder, convert the energy of the circular motion into an axial thrust for the material to move forward. The Alisma plantago-aquatica continuously tumbles and flips under the spiral push, and combined with the squeezing and kneading of the cylinder walls rotating in opposite directions on both sides of the annular gap, it can be cleaned from all directions.

[0012] Furthermore, the cylinders on both sides of the annular gap are provided with protrusions or brush heads. The protrusions can increase the contact pressure between the cylinder and the surface of Alisma plantago-aquatica, forming point-like extrusion during relative movement, which can effectively peel off stubborn stains in crevices and folds. The dense bristles of the brush head can penetrate into the fine depressions on the surface of Alisma plantago-aquatica, separating stubborn impurities from the epidermis. It is particularly effective in cleaning residual impurities in crevices, effectively improving the cleanliness of Alisma plantago-aquatica.

[0013] Furthermore, it also includes a coaxial reversing mechanism, which includes a gear assembly, a central shaft, and a sleeve shaft. The gear assembly includes a first gear, a second gear, and a connecting gear. Both the first gear and the second gear mesh with the connecting gear. The first gear and the second gear have the same axis, and the axis of the connecting gear is perpendicular to the first gear and the second gear.

[0014] When the first gear rotates clockwise around its own axis, it drives the middle connecting gear to rotate counterclockwise. The counterclockwise rotating connecting gear drives the second gear to rotate clockwise. Since the axis of the connecting gear is perpendicular to the axes of the first and second gears, the spatial vectors of the first and second gears are opposite, thus making the first and second gears coaxial and reversed.

[0015] The sleeve shaft is fitted onto the central shaft, and the first gear is fixedly connected to the central shaft. The central shaft is fixedly connected to the inner cylinder and the intermediate cylinder spaced apart from the inner cylinder. Furthermore, the inner cylinder, outer cylinder, and intermediate cylinder all include an outer wall and an inner wall. The outer wall and the inner wall are connected by a first spring. The first spring connection gives the inner wall a certain elastic expansion and contraction capacity. When the water chestnut moves in the annular gap, the expansion and contraction of the spring will cause the inner wall to produce a small-amplitude, rapid reciprocating motion. This micro-vibration superimposed on the rotational friction of the cylinder can break the bonding force between the stubborn soil and the epidermis, making the soil easier to crush and peel off. At the same time, the compression of the first spring can also absorb some of the impact force, avoiding rigid compression of the water chestnut by the inner wall and mechanical damage to the water chestnut epidermis.

[0016] Furthermore, the high-pressure water jet module includes several high-pressure nozzles, which are evenly distributed on both sides of the cylindrical wall of the annular gap. The nozzle heads face the annular gap, and the high-pressure water flow can directly disperse and peel off the stubborn soil on the surface of Alisma plantago-aquatica after it has been kneaded through impact force. In particular, it can further break down the adhesion between the sludge and the surface, especially the sludge hidden in the depressions of the surface, and at the same time remove the peeled impurities in time to avoid secondary pollution.

[0017] Furthermore, the angle between the spray direction of the high-pressure nozzle and the tangential direction of the cylinder rotation is 15°-30°. When the inner wall rotates clockwise with the cylinder, the water flows in the direction of the inner wall rotation, forming a combined force with the clockwise friction force of the inner wall on the Alisma plantago-aquatica, making the mechanical friction more thorough. At this time, the outer wall of the same annular gap rotates counterclockwise, thereby driving the water flow to rotate counterclockwise. The counterclockwise rotation of the outer wall and the clockwise rotation of the inner wall form a reverse shear force, continuously rubbing the material to remove sludge. The clockwise water flow on the inner wall and the counterclockwise water flow on the outer wall form an annular vortex in the gap. The water flow circulates along the annular gap, continuously rinsing the surface of the material. In particular, the circulating water flow can continuously penetrate and carry out the residual sludge hidden in the gap, improving the decontamination efficiency. The radial force at an angle of 15°-30° is sufficient to penetrate the sludge layer. Combined with the spiral water flow formed by the tangential force, it can completely wrap around the surface of Alisma plantago-aquatica, avoiding excessive impact that could damage the skin. At the same time, it is sufficient to penetrate the sludge layer. Combined with the spiral water flow formed by the tangential force, it ensures the effective removal of stubborn sludge from Alisma plantago-aquatica.

[0018] Furthermore, it also includes a primary cleaning module, which includes a cleaning cylinder with a vibration module below it. The vibration module generates high-frequency vibration, causing the water chestnuts inside the cleaning cylinder to continuously tumble and collide in the water flow. Utilizing the impact force of the water and the friction between the materials, floating mud and loose surface contaminants are first removed. A drain outlet is provided on one side of the cleaning cylinder to promptly discharge detached sludge and prevent contaminants from accumulating in the water and re-attaching. The water chestnut outlet is provided on the other side of the cleaning cylinder and is connected to a transport module, allowing the water chestnuts cleaned by the primary cleaning module to be transported to the secondary cleaning module. This module achieves the initial effect of removing surface floating mud and loosening silt, while also reducing the load on the secondary cleaning module, allowing it to directly target difficult-to-remove sludge and effectively improve the removal rate of stubborn sludge.

[0019] Compared with existing technologies, the two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology provided by the present invention has the following beneficial effects:

[0020] 1. The present invention provides a two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology. By rotating the two rollers in opposite directions in the annular gap of the nested rollers, a circumferential shear force field and kneading action are formed. Combined with the rinsing of the high-pressure water jet module, it can efficiently separate Alisma plantago-aquatica tuberous roots from silt and fibrous roots. This solves the separation problem caused by the characteristics of the planting soil and root system of Alisma plantago-aquatica, and ensures the medicinal value and safety of Alisma plantago-aquatica. It has good application prospects and promotion value.

[0021] 2. The two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology of the present invention connects the inner wall and the outer wall of the drum through a first spring. The elastic extension and contraction of the spring allows the inner wall to adapt to the size and shape of Alisma plantago-aquatica, which not only enhances the kneading friction of stubborn sludge in the folds of the skin, but also absorbs the impact force through buffering, avoiding material damage caused by rigid extrusion.

[0022] 3. The present invention provides a two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology. The device cleans Alisma plantago-aquatica through two-stage cleaning modules. The first-stage cleaning module uses vibration and other methods to efficiently remove surface mud and loose impurities, reducing the subsequent cleaning load or affecting the rubbing effect. The second-stage cleaning module targets the stubborn residual mud and precisely removes deep-seated contaminants. This not only improves the overall cleaning efficiency, but also allows for step-by-step adjustment of the cleaning intensity to minimize damage to the Alisma plantago-aquatica epidermis while thoroughly removing contaminants. This provides clean and intact raw materials for subsequent cutting processes, ensuring the quality and processing precision of the final product.

[0023] 4. The two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology of the present invention uses high-pressure nozzles set on the inner and outer walls of the drum. The nozzles face the annular gap. The rotating nozzles can spray high-pressure water jets onto the material from a constantly changing angle as the drum moves, achieving no dead angle coverage of the Alisma plantago-aquatica surface. This solves the problem of blind spots in rinsing that exist with fixed nozzles. In addition, the centrifugal force generated by the rotation of the nozzles can enhance the stability and impact of the water jet. At the same time, it can make the water flow form a spiral motion trajectory within the annular gap. The vortex effect generated during its flow can also enhance the disturbance to the Alisma plantago-aquatica surface, improve the thoroughness of cleaning, and prevent sludge from accumulating in the gap. Attached Figure Description

[0024] The accompanying drawings, which are provided to further illustrate embodiments of the invention and constitute a part of this invention, are not intended to limit the scope of the invention.

[0025] Figure 1 This is a schematic diagram of a two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to the present invention.

[0026] Figure 2 This is a schematic diagram of the structure of the graded transport component in this invention;

[0027] Figure 3 This is a schematic diagram of the three-stage roller conveyor structure in this invention;

[0028] Figure 4 This is a schematic diagram of the structure of the secondary cleaning module in this invention;

[0029] Figure 5 This is a three-dimensional structural diagram of the inner cylinder, outer cylinder, and intermediate cylinder of the secondary cleaning module in this invention;

[0030] Figure 6 This is a schematic diagram showing the positional structure of the spiral blades relative to the inner cylinder, outer cylinder, and intermediate cylinder in this invention.

[0031] Figure 7 This is a schematic diagram of the outer cylinder structure of the secondary cleaning module in this invention;

[0032] Figure 8 This is a schematic diagram of the coaxial reversing mechanism in this invention;

[0033] Figure 9 This is a side view of the structure of the secondary cleaning module in this invention;

[0034] Figure 10 This is a schematic diagram of the high-pressure nozzle structure of the secondary cleaning module in this invention;

[0035] Among them, 1-inner cylinder, 2-outer cylinder, 3-intermediate cylinder, 4-first-stage roller conveyor, 5-second-stage roller conveyor, 6-third-stage roller conveyor, 7-roller, 8-waterweed inlet, 9-spiral blade, 10-sieve hole, 11-central shaft, 12-sleeve shaft, 13-first gear, 14-second gear, 15-connecting gear, 16-outer wall, 17-inner wall, 18-first spring, 19-high-pressure nozzle, 20-cleaning cylinder, 21-first motor, 22-vibrating block, 23-second spring, 24-drain outlet, 25-waterweed outlet, 26-transport module, 27-second motor. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0038] Example 1

[0039] like Figure 1 and Figure 5 The illustrated two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology includes a two-stage cleaning module. The two-stage cleaning module comprises an inner cylinder 1, an outer cylinder 2, and a high-pressure water jet module. At least one intermediate cylinder 3 is disposed between the inner cylinder 1 and the outer cylinder 2. The axes of the inner cylinder 1, outer cylinder 2, and intermediate cylinder 3 coincide. The inner cylinder 1 is nested within the intermediate cylinder 3, and the intermediate cylinder 3 is nested within the outer cylinder 2. An annular gap exists between adjacent cylinders. The Alisma plantago-aquatica enters the annular gap via a graded transport component. The high-pressure water jet module flushes the Alisma plantago-aquatica into the annular gap through high-pressure nozzles 19 set on the inner and outer walls. When the Alisma plantago-aquatica is transported to the annular gap, the adjacent cylinders rotate in opposite directions to apply frictional forces in opposite directions to the Alisma plantago-aquatica. This generates a continuous tearing force on the sticky sludge and hardened mud clumps embedded in it, destroying their bonding force with the epidermis and breaking the colloidal adsorption state of the sludge formed by moisture. This causes the sticky mud layer that was originally tightly attached to the epidermis to be peeled off layer by layer, solving the separation problem caused by the characteristics of the planting soil and root system of Alisma plantago-aquatica, and ensuring the appearance and medicinal value of the medicinal material.

[0040] In some embodiments, such as Figure 2 and Figure 3As shown, the graded transport assembly includes a primary roller transport component 4, a secondary roller transport component 5, and a tertiary roller transport component 6. One end of the primary roller transport component 4, the secondary roller transport component 5, and the tertiary roller transport component 6 abuts against the inlet of the annular gap. An Alisma inlet 8 is provided above the primary roller transport component. After being cleaned by the primary cleaning module, Alisma is transported to the Alisma inlet 8 through the transport module 26. Each of the primary roller transport components 4, 5, and 6 includes several rollers 7. The axes of the rollers 7 are parallel, and the primary roller transport component 4, the secondary roller transport component 5, and the tertiary roller transport component 6 are arranged sequentially from top to bottom in the vertical direction.

[0041] After Alisma plantago-aquatica falls from the Alisma plantago-aquatica inlet 8 to the primary roller conveyor 4, the distance between adjacent rollers 7 of the primary roller conveyor 4 is 7-8cm. Large-sized Alisma plantago-aquatica larger than 8cm is intercepted by the rollers 7 of the primary roller conveyor 4 and transported to the designated annular gap for rubbing and cleaning. Other Alisma plantago-aquatica falls from the gap between the rollers 7 to the secondary roller conveyor 5, the distance between adjacent rollers 7 of the secondary roller conveyor 5 is 5-6cm. Medium-sized Alisma plantago-aquatica is intercepted and transported by the secondary roller conveyor 5. The remaining small-sized Alisma plantago-aquatica falls to the tertiary roller conveyor 6, the distance between adjacent rollers 7 of the tertiary roller conveyor 6 is 3-4cm, so that these light and small-sized impurities can automatically leak out from the gap between the rollers during transportation, while screening out immature small-sized Alisma plantago-aquatica with insufficient medicinal efficacy.

[0042] In some embodiments, the width of the annular gap abutting against the primary roller conveyor 4 is 8-9 cm, the width of the annular gap abutting against the secondary roller conveyor 5 is 6-7 cm, and the width of the annular gap abutting against the tertiary roller conveyor 6 is 4-5 cm.

[0043] Example 2

[0044] Based on Example 1, such as Figure 6 As shown, spiral blades 9 are fixedly connected to the inner sides of the outer cylinder 2 and the middle cylinder 3. When the outer cylinder 2 or the middle cylinder 3 rotates clockwise, the spiral blades 9 rotate clockwise. The spiral blades 9 fixed to the inner side of the cylinder wall rotate synchronously with the cylinder. The inclined spiral surface will apply a thrust along the axial direction of the cylinder to the Alisma plantago-aquatica. At the same time, the friction force generated by the rotation of the cylinder will drive the Alisma plantago-aquatica to move synchronously with the spiral blades 9. When the outer cylinder 2 or the middle cylinder 3 rotates counterclockwise, the spiral blades 9 rotate counterclockwise. When rotating counterclockwise, the inclined surface of the spiral blades will also form an axial thrust pointing towards the discharge end. Combined with the rotational friction force, it will push the Alisma plantago-aquatica forward. The spiral blades 9 allow the Alisma plantago-aquatica to move directly to the subsequent process while being rubbed and cleaned by the reverse rotation, without the need for an additional conveying device.

[0045] In some embodiments, protrusions or brush heads are provided on both sides of the annular gap cylinder.

[0046] Example 3

[0047] Based on Examples 1 and 2, such as Figure 8 As shown, it also includes a coaxial reversing mechanism, which includes a gear assembly, a central shaft 11, and a sleeve shaft 12.

[0048] like Figure 4 As shown, the gear assembly includes a first gear 13, a second gear 14, and a connecting gear 15. The first gear 13 and the second gear 14 both mesh with the connecting gear 15. The first gear 13 and the second gear 14 have the same axis. The axis of the connecting gear 15 is perpendicular to the first gear 13 and the second gear 14. The first gear 13 is fixedly connected to a central shaft 11, and the second gear 14 is fixedly connected to a sleeve shaft 12.

[0049] When the first gear 13 rotates clockwise around its own axis, the first gear 13 can rotate around its own axis, driving the middle connecting gear 15 to rotate counterclockwise. The counterclockwise rotating connecting gear 15 drives the second gear 13 to rotate clockwise. Since the axis of the connecting gear is perpendicular to the axes of the first and second gears, the spatial vectors of the first gear and the second gear are opposite, thus making the first and second gears coaxial and reversed.

[0050] The sleeve shaft 12 is sleeved on the central shaft 11. The central shaft 11 is fixedly connected to the inner cylinder 1 and the intermediate cylinder 3 spaced apart from the inner cylinder 1 by a fixing rod. The sleeve shaft 12 is connected to the intermediate cylinder 3 adjacent to the inner cylinder 1. Therefore, the inner cylinder 11 and the cylinder spaced apart from the inner cylinder 1 rotate in the same direction. The second gear 13 is fixedly connected to the sleeve shaft 12. The sleeve shaft 12 is fixedly connected to the intermediate cylinder 3 adjacent to the inner cylinder 1. The cylinder adjacent to the inner cylinder 1 rotates in the opposite direction to the inner cylinder 1, so that the cylinders on both sides of the annular gap rotate in opposite directions, generating frictional forces in opposite directions on the contacting Alisma plantago-aquatica, forming a shearing and kneading effect, and breaking down the stubborn sludge structure.

[0051] like Figure 7 As shown, the rotation of the outer cylinder 2 can be achieved through belt drive, chain drive, or gear drive, etc. In this embodiment, the outer cylinder 2 is preferably powered by a second motor 27. The output shaft of the second motor 27 is connected to the driving pulley, and the rotating shaft of the outer cylinder 2 is connected to the driven pulley. The belt is fitted on the driving pulley and the driven pulley, so that the outer cylinder 2 rotates around the axis. Power is transmitted by the friction between the belt and the pulley, which has the advantages of smooth operation and low noise.

[0052] Example 4

[0053] Based on Examples 1 to 3, such as Figure 4 and Figure 9As shown, the inner cylinder 1, outer cylinder 2 and intermediate cylinder 3 each include an outer wall 16 and an inner wall 17. The outer wall 16 and the inner wall 17 are connected by a first spring 18. When Alisma plantago-aquatica enters the annular gap for rubbing and cleaning, the first spring 18 can absorb the impact energy through compression deformation.

[0054] In some embodiments, the inner cylinder 1 has 8-10 first springs 18 distributed circumferentially on its wall to avoid sparse support points due to its small diameter. The middle cylinder 3 has 12 first springs 18 distributed circumferentially on its wall to accommodate medium diameters. The outer cylinder 2 has 16-18 first springs 18 distributed circumferentially on its wall. Since the diameter is large, more support points are needed to ensure that the force on the water chestnut is uniform within the annular gap.

[0055] Example 5

[0056] Based on Examples 1 to 4, such as Figure 9 As shown, the high-pressure water jet module includes several high-pressure nozzles 19, which are evenly arranged on the cylindrical wall on both sides of the annular gap, with the nozzle heads facing the annular gap.

[0057] In some embodiments, such as Figure 10 As shown, the spray direction of the high-pressure nozzle 19 on the inner wall is at an angle of 15°-30° to the opposite direction of the rotation tangent of the cylinder, and the spray direction of the high-pressure nozzle 19 on the outer wall is at an angle of 15°-30° to the rotation tangent of the cylinder. The relative speed during rotation enhances the scouring force on the material, and the water flow on the inner wall forms a circumferential scouring, which improves the cleaning quality.

[0058] In some embodiments, a row of nozzles is arranged circumferentially every 10-20cm along the axial direction of the cylinder, with 4-8 high-pressure nozzles 19 evenly distributed in each row along the circumferential direction. In the axial direction, the length of the cylinder is 2m, and 9-11 rows of high-pressure nozzles 19 are provided.

[0059] In some embodiments, the high-pressure nozzle 19 is fixedly connected to the cylinder wall by means of threaded connection, welding or interference fit.

[0060] In some embodiments, a water spray pipe is provided between the outer wall 16 and the inner wall 17 of the cylinder. The water spray pipe is connected to a high-pressure water pump outside the cylinder through a rotary sealing joint. The rotary sealing joint can ensure a seal while allowing the rotating part to rotate freely with the cylinder, ensuring a stable input of high-pressure water flow.

[0061] In some embodiments, the inner cylinder, outer cylinder and intermediate cylinder are all provided with sieve holes 10. The sieve holes 10 are evenly distributed on the cylinder wall. The diameter of the sieve holes is 0.8-1.2mm. This ensures that the fine mud, debris and sewage stripped off during the washing process can pass through the sieve holes smoothly and be discharged. It also prevents the tubers of Alisma plantago-aquatica from leaking out of the sieve holes and prevents material loss.

[0062] In some embodiments, the water spray pipe is arranged in a ring between the outer wall 16 and the inner wall 17 of the cylinder. The water spray pipe is arranged in a ring along the circumference of the cylinder. The high-pressure nozzle 19 is connected to a branch of the ring pipe. This arrangement can ensure uniform water flow distribution.

[0063] Example 6

[0064] Based on Examples 1 to 5, such as Figure 1 As shown, it also includes a primary cleaning module, which includes a cleaning cylinder 20. A vibration module is located below the cleaning cylinder 20. A drain outlet 22 is located on one side of the cleaning cylinder 20, and a water plantain discharge outlet 23 is located on the other side of the cylinder. Harvested water plantain is fed into the cylinder 20 of the primary cleaning module. Water plantain typically carries a large amount of field soil, weeds, and other impurities. A spring is located below the cleaning cylinder 20. Activating the first motor 21 causes the vibrating block 22 to vibrate, generating vibration in the cylinder 20. Under vibration, the water plantain collides and rubs against each other, while simultaneously contacting the inner wall of the cylinder, causing most of the easily detachable soil and impurities on the surface to be removed. Impurities such as grass are initially separated. As the cleaning process continues, wastewater and impurities are discharged through the drain outlet 22 below the cylinder 20. The pre-cleaned water plantain moves to the water plantain outlet 23, which is connected to the transport module 24 so that the water plantain cleaned by the first-stage cleaning module is transported to the second-stage cleaning module via the transport module 26. In the second-stage cleaning module, adjacent cylinders rotate in opposite directions to rub the water plantain. The spiral blade 9 pushes the water plantain to move in the annular gap. At the same time, the high-pressure nozzle 19 sprays high-pressure water into the annular gap to deeply clean the water plantain, removing residual stubborn sludge and impurities. Finally, it is transported to the collection box for collection.

[0065] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0066] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology, characterized in that, The system includes a two-stage cleaning module, which comprises an inner cylinder (1), an outer cylinder (2), and a high-pressure water jet module. At least one intermediate cylinder (3) is provided between the inner cylinder (1) and the outer cylinder (2). The axes of the inner cylinder (1), the outer cylinder (2), and the intermediate cylinder (3) coincide. The inner cylinder (1) is nested inside the intermediate cylinder (3), and the intermediate cylinder (3) is nested inside the outer cylinder (2). There is an annular gap between adjacent cylinders. The Alisma plantago-aquatica enters the annular gap through a graded transport component. The high-pressure water jet module is used to rinse the Alisma plantago-aquatica that has entered the annular gap. The adjacent cylinders rotate in opposite directions to rub the Alisma plantago-aquatica.

2. The two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 1, characterized in that, The graded transport assembly includes a primary roller transport component (4), a secondary roller transport component (5), and a tertiary roller transport component (6). One end of each of the primary roller transport component (4), secondary roller transport component (5), and tertiary roller transport component (6) abuts against the inlet of the annular gap. Each of the primary roller transport component (4), secondary roller transport component (5), and tertiary roller transport component (6) includes several rollers (7). The axial directions of the rollers (7) are parallel, and the primary roller transport component (4), secondary roller transport component (5), and tertiary roller transport component (6) are arranged sequentially from top to bottom in the vertical direction. The distance between adjacent rollers (7) of the primary roller transport component (4) is 7-8 cm, the distance between adjacent rollers (7) of the secondary roller transport component (5) is 5-6 cm, and the distance between adjacent rollers (7) of the tertiary roller transport component (6) is 3-4 cm.

3. The two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 2, characterized in that, The width of the annular gap that abuts against the first-stage roller conveyor (4) is 8-9 cm, the width of the annular gap that abuts against the second-stage roller conveyor (5) is 6-7 cm, and the width of the annular gap that abuts against the third-stage roller conveyor (6) is 4-5 cm.

4. The two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 1, characterized in that, The outer cylinder (2) and the middle cylinder (3) are fixedly connected to a spiral blade (9). When the outer cylinder (2) or the middle cylinder (3) rotates clockwise, the spiral blade (9) rotates to the right. When the outer cylinder (2) or the middle cylinder (3) rotates counterclockwise, the spiral blade (9) rotates to the left.

5. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 1, characterized in that, The cylinders on both sides of the annular gap are provided with protrusions or brush heads.

6. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 1, characterized in that, It also includes a coaxial reversing mechanism, which includes a gear assembly, a central shaft (11), and a sleeve shaft (12). The sleeve shaft (12) is sleeved on the central shaft (11), the central shaft (11) is fixedly connected to the inner cylinder (1) and the intermediate cylinder (3) spaced apart from the inner cylinder (1), and the sleeve shaft (12) is connected to the intermediate cylinder (3) adjacent to the inner cylinder (1). The gear assembly includes a first gear (13), a second gear (14), and a connecting gear (15). The first gear (13) and the second gear (14) are both meshed with the connecting gear (15). The first gear (13) and the second gear (14) have the same axis. The axis of the connecting gear (15) is perpendicular to the first gear (13) and the second gear (14). The first gear (13) is fixedly connected to a central shaft (11), and the second gear (14) is fixedly connected to a sleeve shaft (12). The first gear (13) can rotate around its own axis.

7. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 1, characterized in that, The inner cylinder (1), outer cylinder (2) and intermediate cylinder (3) each include an outer wall (16) and an inner wall (17), and the outer wall (16) and the inner wall (17) are connected by a first spring (18).

8. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 7, characterized in that, The high-pressure water jet module includes several high-pressure nozzles (19), which are evenly arranged on the inner wall (17) and outer wall (16) of the cylinder, with the nozzles of the high-pressure nozzles (19) facing the annular gap.

9. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 8, characterized in that, The angle between the spray direction of the high-pressure nozzle (19) and the rotational tangent of the cylinder is 15°-30°.

10. A two-stage Alisma plantago-aquatica cleaning device based on high-pressure water jet technology according to claim 1, characterized in that, It also includes a primary cleaning module, which includes a cleaning cylinder (20), a vibration module below the cleaning cylinder (20), a drain outlet (22) on one side of the cleaning cylinder (20), and a water chestnut outlet (23) on the other side of the cylinder. The water chestnut outlet (23) is connected to a transport module (24) so ​​that the water chestnut can be transported to the secondary cleaning module.

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