High-speed spiral conveying and feeding system suitable for low-viscosity solution

Abstract

The invention relates to the technical field of material conveying systems, in particular to a high-speed spiral conveying and feeding system suitable for low-viscosity solutions, which comprises a mounting base, a material conveying cylinder is arranged on the mounting base, and a spiral pressurizing mechanism for pressurizing and conveying the low-viscosity solutions is arranged in the material conveying cylinder. And the discharging end of the conveying cylinder is provided with an anti-scattering mechanism used for reducing rotation kinetic energy at the solution outlet, and the spiral pressurizing mechanism comprises a spiral conveying shaft rotationally installed in the conveying cylinder. By means of the structural design that the outer diameters of the first-stage pressurizing disc, the second-stage pressurizing disc and the third-stage pressurizing disc are sequentially increased, and gaps between the first-stage pressurizing disc, the second-stage pressurizing disc and the third-stage pressurizing disc and the inner wall of the material conveying cylinder are gradually reduced, a low-viscosity solution can be subjected to the gradually-enhanced extrusion effect in the conveying process, and the stable axial pressure gradient is formed; the backflow trend caused by high flowability of the low-viscosity solution can be effectively counteracted, and it is ensured that the solution always keeps a continuous and uniform flowing state in the obliquely upward conveying process.

Description

Technical Field

[0001] This invention relates to the field of material conveying systems, and more particularly to a high-speed screw conveyor feeding system suitable for low-viscosity solutions. Background Technology

[0002] Low-viscosity solutions (such as water, alcohol, solvents, and dilute chemical liquids) are widely used in industrial production, involving multiple fields such as food processing, fine chemicals, pharmaceutical manufacturing, and electronic materials. These solutions are usually transported by pumping or screw conveying. However, traditional screw conveyor equipment is mainly designed for powders, granules, or high-viscosity materials. When used for high-speed transport of low-viscosity solutions, the poor adhesion between the low-viscosity solution and the screw blades causes the solution to slip on the blade surface during high-speed rotation, making it impossible to obtain sufficient axial thrust. This results in a significant decrease in conveying efficiency. Furthermore, the centrifugal force generated by high-speed rotation causes the solution to splash in all directions the moment it leaves the screw, which not only wastes materials and pollutes the environment but also affects the stability of subsequent processes.

[0003] In response, some improvement solutions attempt to enhance conveying performance by changing the spiral structure or adding auxiliary devices, such as using variable lead spirals or adding turbulence-inducing elements. However, most existing technologies address single problems and lack systematic design, making it difficult to simultaneously achieve pressurized conveying and anti-scattering functions. Furthermore, the improvement solutions are structurally complex, difficult to manufacture, and costly, which is not conducive to practical application. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a high-speed screw conveying system suitable for low-viscosity solutions. It solves the technical problems that most existing technologies address single issues, lack systematic design, and struggle to simultaneously achieve multiple functions such as pressurized conveying, anti-scattering, self-cleaning, and angle adjustment. This system has the advantages of adapting to the characteristics of low-viscosity solutions, achieving high-speed and stable conveying, possessing self-cleaning capabilities, and having an adjustable angle.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-speed screw conveying feeding system suitable for low-viscosity solutions, including a mounting base, on which a conveying cylinder is provided. The conveying cylinder is provided with a screw booster mechanism for pressurizing and conveying low-viscosity solutions. The discharge end of the conveying cylinder is provided with an anti-splashing mechanism for reducing the rotational kinetic energy at the solution outlet. During the conveying of low-viscosity solutions, the screw booster mechanism can provide stable high-pressure fluid, the anti-splashing mechanism can ensure that the solution is discharged uniformly downwards, and the self-cleaning mechanism is used for cleaning after the conveying is completed. The screw booster mechanism includes a screw conveying shaft rotatably installed in the conveying cylinder, and a first-stage booster plate, a second-stage booster plate, and a third-stage booster plate sequentially sleeved along the axial direction at the discharge end of the screw conveying shaft. The back of the first-stage, second-stage, and third-stage booster plates are all provided with annular grooves. The bottom of the annular grooves is provided with backflow suppression holes penetrating the thickness direction of the booster plates. Several backflow suppression holes are uniformly provided along the circumference of the annular grooves.

[0006] Preferably, the outer diameters of the first-stage booster plate, the second-stage booster plate, and the third-stage booster plate increase sequentially. An annular gap is formed between the third-stage booster plate and the inner wall of the conveying cylinder. The gap between the third-stage booster plate and the conveying cylinder is the smallest, while the gap between the first-stage booster plate and the conveying cylinder is the largest.

[0007] Preferably, the feed end of the screw conveyor shaft is provided with a feed channel, and the upper end of the conveying cylinder is provided with a discharge channel. The opening direction of the discharge channel is perpendicular to the axis of the screw conveyor shaft. The outside of the conveying cylinder is provided with a conveying motor that is connected to the screw conveyor shaft for transmission. After the solution enters the conveying cylinder from the feed channel, it will flow obliquely upward under the action of the screw conveyor shaft and be discharged through the discharge channel.

[0008] Preferably, the anti-scattering mechanism includes at least one sidewall annular groove formed on the inner wall of the discharge end of the conveying cylinder, and a damping flange provided on the discharge end of the screw conveyor shaft and correspondingly engaged with the sidewall annular groove. The sidewall annular groove has a flow-facing slope facing the feeding direction, and the damping flange has a mating slope that matches the flow-facing slope. Through the matching design of the flow-facing slope and the mating slope, the damping flange forms a non-contact labyrinth seal with the sidewall annular groove during rotation, effectively dissipating the rotational kinetic energy in the solution while avoiding mechanical friction.

[0009] Preferably, the outer circumferential surface of the damping flange is provided with a spiral microgroove, the spiral direction of the spiral microgroove is the same as the conveying direction of the spiral conveying shaft, and multiple annular grooves are provided on the side wall and are distributed equidistantly along the axial direction.

[0010] Preferably, the discharge end of the conveying cylinder is equipped with a self-cleaning mechanism. The self-cleaning mechanism includes a sealing end cap fixedly installed at the discharge end of the conveying cylinder, an internal water tank axially formed inside the screw conveying shaft, a rotary joint on the sealing end cap, and a rotary sealing connection between the rotary joint and the end of the screw conveying shaft. A cleaning water pump is fixedly installed outside the conveying cylinder, a cleaning pipeline is connected between the output end of the cleaning water pump and the rotary joint, and a water inlet connector is provided at the input end of the cleaning water pump. Several cleaning inclined holes connected to the internal water tank are formed on the screw conveying shaft, and the water inlet connector is connected to an external water pipe. When the cleaning water pump is powered on, it will deliver clean water to the inside of the internal water tank through the cleaning pipeline and the rotary joint. Subsequently, the clean water will be sprayed out through the multiple cleaning inclined holes.

[0011] Preferably, the axis of the cleaning inclined hole forms an angle of 20°-45° with the radial direction of the screw conveyor shaft, the liquid outlet of the cleaning inclined hole faces the unloading channel, and multiple rows of cleaning inclined holes are opened along the axial direction of the screw conveyor shaft, with multiple holes evenly distributed along the circumference in each row.

[0012] Preferably, the mounting base is provided with a stable support mechanism for adjusting the tilt angle of the conveying cylinder and buffering operational vibrations. The stable support mechanism includes fixed vertical plates symmetrically arranged on the mounting base, an adjusting base hinged to the fixed vertical plates, an adjusting motor for driving the fixed vertical plates fixedly installed on the outer side of the fixed vertical plates, a lifting platform movably mounted on the mounting base, and a buffer pad for contacting the conveying cylinder at the upper end of the lifting platform. The conveying cylinder is mounted on the adjusting base, and the adjusting base can rotate under the drive of the adjusting motor, thereby adjusting the tilt angle of the conveying cylinder.

[0013] Preferably, the axis of the conveying cylinder is inclined at an angle of 30°-45° to the horizontal plane. This not only allows the solution to be conveyed upward with the help of gravity, reducing the load on the screw pressurization mechanism, but also ensures that the solution will not flow back quickly due to the large inclination angle when the machine stops, thus achieving a balance between conveying efficiency and backflow prevention performance.

[0014] Preferably, a transition chamber is formed between the three-stage pressurization plate and the anti-scattering mechanism. The high-pressure solution after three-stage pressurization is uniformly mixed and the pressure pulsation is reduced in this chamber. Then, it smoothly enters the anti-scattering mechanism for processing, which further improves the uniformity and stability of the output.

[0015] By employing the above technical solution, the present invention provides a high-speed screw conveying system suitable for low-viscosity solutions, which has at least the following beneficial effects: 1. This invention, by setting up a spiral pressurizing mechanism, utilizes a structural design in which the outer diameters of the first-stage, second-stage, and third-stage pressurizing discs increase sequentially, and the gap between them and the inner wall of the conveying cylinder decreases step by step. This allows the low-viscosity solution to be subjected to progressively enhanced compression during the conveying process, forming a stable axial pressure gradient. This effectively counteracts the backflow tendency caused by the high fluidity of the low-viscosity solution, ensuring that the solution maintains a continuous and uniform flow state during the upward oblique conveying process.

[0016] 2. This invention, by setting up a spiral pressurization mechanism, utilizes the interaction between the annular groove and the backflow suppression hole. When the solution backflows, the backflow liquid enters the annular groove and is re-ejected into the mainstream area through the backflow suppression hole, thereby forming a vortex flow. The stronger the backflow, the faster the vortex rotates and the better the sealing effect, forming a dynamic backflow self-locking mechanism, which can significantly reduce energy loss and improve the reliability of the conveying system.

[0017] 3. By setting up an anti-splashing mechanism, the present invention utilizes the cooperation between the side wall annular groove and the damping flange to force the high-speed rotating solution to repeatedly change its flow direction when passing through multiple labyrinth channels, thereby gradually dissipating the harmful circumferential rotational kinetic energy into heat energy, while the axial propulsion speed is basically unaffected, thus completely solving the problem of outlet splashing caused by centrifugal force when transporting low-viscosity solutions at high speed.

[0018] 4. By setting up an anti-scattering mechanism, the invention has a spiral microgroove on the outer circumference of the damping flange with the same direction of rotation as the conveying direction of the spiral conveyor shaft. When rotating, it will generate an active pumping effect, which can force the solution that attempts to rotate or flow back along the wall to the discharge direction. Even in ultra-high speed conditions or at the moment of shutdown, it can effectively prevent the solution from flowing back and scattering.

[0019] 5. By setting up a self-cleaning mechanism, the present invention utilizes the cooperation between the internal water tank and the cleaning inclined hole to enable the cleaning liquid to be sprayed outward from the shaft at high speed, forming an impactful inclined water column that directly washes the surface of the spiral blades, the spiral root, and the inner wall of the conveying cylinder. This achieves comprehensive and rapid cleaning of the inside of the conveying system without disassembling the equipment, which can significantly reduce equipment downtime and improve production efficiency.

[0020] 6. By setting up a self-cleaning mechanism, the cleaning inclined hole axis forms a 20°-45° angle with the radial direction of the screw conveyor shaft, and multiple rows are opened along the axial direction, with each row evenly distributed around the circumference. This ensures that the cleaning water column can accurately cover the entire length of the screw and spray to the back of the blades and the dead corners at the root that are difficult to reach by traditional cleaning methods. In addition, the screw conveyor shaft will continue to rotate during the cleaning process, so that the cleaning wastewater will be continuously discharged from the unloading channel, realizing a continuous operation mode of cleaning and discharge at the same time, which is thorough and has no residual liquid problem.

[0021] 7. This invention, by setting up a stable support mechanism, using an adjusting motor to drive the base to rotate, and combining it with a hydraulically driven lifting platform to keep the buffer pad in contact with the conveying cylinder at all times, achieves precise angle adjustment of the conveying cylinder within the range of 30°-45°. This allows for gravity-assisted upward conveying of the solution, reducing the load on the screw pressurizing mechanism, and also ensures that the solution will not flow back quickly due to excessive tilt angle when the machine stops, providing a stable foundation for precise conveying. Attached Figure Description

[0022] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 The three-dimensional structure of the present invention Figure 1 ; Figure 2 The three-dimensional structure of the present invention Figure 2 ; Figure 3 This is a schematic diagram of the spiral booster mechanism in this invention; Figure 4 This is a schematic diagram of the annular groove in the present invention; Figure 5 This is a schematic diagram of the anti-scattering mechanism in the present invention; Figure 6 This is a schematic diagram of the sidewall annular groove in the present invention; Figure 7 This is a schematic diagram of the spiral microgroove structure in this invention; Figure 8 This is a schematic diagram of the self-cleaning mechanism in this invention; Figure 9 This is a schematic diagram of the cleaning oblique hole in the present invention; Figure 10 This is a schematic diagram of the stabilizing support mechanism in this invention.

[0023] In the diagram: 1. Mounting base; 2. Conveying cylinder; 3. Screw booster mechanism; 301. Feeding channel; 302. Discharge channel; 303. Screw conveyor shaft; 304. Conveying motor; 305. First-stage booster plate; 306. Second-stage booster plate; 307. Third-stage booster plate; 308. Annular groove; 309. Backflow suppression hole; 4. Anti-scattering mechanism; 401. Side wall annular groove; 402. Flow-facing ramp; 403. Damping convexity 404. Edge; 405. Fitting bevel; 406. Spiral microgroove; 5. Self-cleaning mechanism; 507. Sealing end cap; 508. Rotary joint; 509. Cleaning water pump; 5000. Cleaning pipeline; 5001. Water inlet connector; 501. Internal water tank; 502. Cleaning inclined hole; 6. Stable support mechanism; 601. Fixed vertical plate; 602. Adjustable base; 603. Adjustable motor; 604. Lifting platform; 605. Buffer pad. Detailed Implementation

[0024] 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.

[0025] Example 1 Traditional screw conveyors are primarily designed for powders, granules, or high-viscosity materials. When used for high-speed conveying of low-viscosity solutions, the poor adhesion between the solution and the screw blades causes the solution to slip on the blade surface during high-speed rotation, resulting in insufficient axial thrust and a significant decrease in conveying efficiency. To address this technical deficiency in existing technologies, such as... Figures 1-5 As shown, this embodiment proposes a high-speed screw conveyor feeding system suitable for low-viscosity solutions. It can adapt to the characteristics of low-viscosity solutions and achieve high-speed and stable conveying. The feeding system includes a mounting base 1, on which a conveying cylinder 2 is mounted. The conveying cylinder 2 is equipped with a screw pressurizing mechanism 3 for pressurizing and conveying low-viscosity solutions. The discharge end of the conveying cylinder 2 is equipped with an anti-splashing mechanism 4 for reducing the rotational kinetic energy at the solution outlet. The discharge end of the conveying cylinder 2 is equipped with a self-cleaning mechanism 5. The mounting base 1 is equipped with a stabilizing support mechanism 6 for adjusting the tilt angle of the conveying cylinder 2 and buffering the operating vibration. During the conveying of low-viscosity solutions, the screw pressurizing mechanism 3 can provide stable high-pressure fluid, the anti-splashing mechanism 4 can ensure that the solution is discharged downwards evenly, and the self-cleaning mechanism 5 is used for cleaning after the conveying is completed.

[0026] Specifically, the screw booster mechanism 3 includes a screw conveyor shaft 303 rotatably mounted inside the conveying cylinder 2. The screw conveyor shaft 303 has a feed channel 301 at its inlet end, and a discharge channel 302 at the upper end of the conveying cylinder 2. The opening direction of the discharge channel 302 is perpendicular to the axis of the screw conveyor shaft 303. A conveying motor 304, which is connected to the screw conveyor shaft 303, is located outside the conveying cylinder 2. After the solution enters the conveying cylinder 2 through the feed channel 301, it flows obliquely upward under the action of the screw conveyor shaft 303 and is discharged through the discharge channel 302. A primary booster plate 305 and a secondary booster plate 306 are sequentially fitted axially onto the discharge end of the screw conveyor shaft 303. The outer diameters of the pressure plate 306 and the three-stage booster plate 307, the first-stage booster plate 305, the second-stage booster plate 306 and the third-stage booster plate 307 increase sequentially. An annular gap is formed between the third-stage booster plate 307 and the inner wall of the conveying cylinder 2. The gap between the third-stage booster plate 307 and the conveying cylinder 2 is the smallest, and the gap between the first-stage booster plate 305 and the conveying cylinder 2 is the largest. An annular groove 308 is provided on the back of the first-stage booster plate 305, the second-stage booster plate 306 and the third-stage booster plate 307. A backflow suppression hole 309 penetrating the thickness direction of the booster plate is provided at the bottom of the annular groove 308. Several backflow suppression holes 309 are evenly provided along the circumference of the annular groove 308.

[0027] As can be seen from the above, during processing, the workers will add the low-viscosity solution to be conveyed into the inside of the conveying cylinder 2 through the feed channel 301. Subsequently, the screw conveyor shaft 303 will rotate at high speed under the drive of the conveying motor 304. Under the push of the blades of the screw conveyor shaft 303, the low-viscosity solution will be conveyed obliquely upward.

[0028] When the solution flows through the first-stage pressure booster 305, the second-stage pressure booster 306, and the third-stage pressure booster 307, the solution is subjected to progressively stronger squeezing action due to the increasing outer diameter of the pressure boosters. The pressure continuously rises, forming a stable pressure gradient. At the same time, some of the backflow liquid in the solution enters the annular groove 308 and is then re-ejected into the mainstream through the backflow suppression hole 309, thus forming a local vortex flow. This vortex consumes the energy of the backflow liquid and produces a dynamic sealing effect on the mainstream. The stronger the backflow, the faster the vortex rotates and the better the sealing effect.

[0029] Finally, the high-pressure solution, after being pressurized in three stages, will reach the upper end of the conveying cylinder 2 and be discharged downward from the unloading channel 302, which is perpendicular to the axis of the screw conveyor shaft 303, thus completing the high-speed, stable, and backflow-proof conveying process of the low-viscosity solution.

[0030] This embodiment employs a spiral booster mechanism 3, utilizing a structural design where the outer diameters of the first-stage booster plate 305, second-stage booster plate 306, and third-stage booster plate 307 increase sequentially, while the gap between them and the inner wall of the conveying cylinder 2 decreases progressively. This design allows the low-viscosity solution to experience progressively stronger compression during transport, forming a stable axial pressure gradient. This effectively counteracts the backflow tendency caused by the high fluidity of the low-viscosity solution, ensuring that the solution maintains a continuous and uniform flow state during the upward oblique transport process. Furthermore, by incorporating the spiral booster mechanism 3, and utilizing the interaction between the annular groove 308 and the backflow suppression hole 309, when backflow occurs, the backflowing liquid enters the annular groove 308 and is re-ejected into the mainstream area through the backflow suppression hole 309, thus forming a vortex flow. The stronger the backflow, the faster the vortex rotates and the better the sealing effect, forming a dynamic backflow self-locking mechanism. This significantly reduces energy loss and improves the reliability of the conveying system.

[0031] Example 2 To prevent the centrifugal force generated by the high-speed rotation of the solution from causing it to splash outwards at the moment of detachment from the spiral, resulting in material waste and environmental pollution, based on Example 1, as follows: Figure 3 , Figure 5 , Figure 6 as well as Figure 7 As shown, this embodiment includes an anti-scattering mechanism 4. Specifically, the anti-scattering mechanism 4 includes at least one sidewall annular groove 401 formed on the inner wall of the discharge end of the conveying cylinder 2, and a damping flange 403 formed on the discharge end of the screw conveyor shaft 303 and correspondingly cooperating with the sidewall annular groove 401. The sidewall annular groove 401 has a flow-facing slope 402 facing the feeding direction, and the damping flange 403 has a matching inclined surface 404 that matches the flow-facing slope 402. Through the matching design of the flow-facing slope 402 and the matching inclined surface 404, the damping flange 403 forms a non-contact labyrinth seal with the sidewall annular groove 401 during rotation, effectively dissipating the rotational kinetic energy in the solution and avoiding mechanical friction. The outer circumferential surface of the damping flange 403 is provided with a spiral microgroove 405. The spiral direction of the spiral microgroove 405 is the same as the conveying direction of the screw conveyor shaft 303. Multiple sidewall annular grooves 401 are formed and are equidistantly distributed along the axial direction.

[0032] As can be seen from the above, when the high-speed rotating solution pressurized by the spiral booster mechanism 3 enters the discharge end of the conveying cylinder 2, it needs to pass through the labyrinth channel formed by multiple side wall annular grooves 401 and damping flanges 403 in sequence.

[0033] First, the solution enters the side wall annular groove 401 under the guidance of the inverted ramp 402. After impacting the mating ramp 404 of the damping flange 403, it is forced to change its flow direction, so that the rotational kinetic energy is gradually dissipated.

[0034] Meanwhile, the spiral microgrooves 405 on the outer circumference of the damping flange 403 rotate in the same direction as the conveying direction of the spiral conveying shaft 303. When rotating, they will generate a pumping effect, thereby actively pushing the solution that is trying to rotate or flow back along the wall towards the discharge direction.

[0035] Moreover, since the flow-facing ramp 402 of the sidewall annular groove 401 faces the feed direction, and the mating ramp 404 of the damping flange 403 matches it, this asymmetrical structure makes the solution less resistant when flowing in the forward direction, while it is strongly damped when attempting to rotate or flow back, thus effectively preventing solution backflow.

[0036] After being damped step by step by multiple sidewall annular grooves 401 and damping flanges 403, the harmful circumferential rotational kinetic energy in the solution is largely converted into heat energy and consumed. Finally, it enters the unloading channel 302 in a stable axial flow state, achieving uniform discharge without splashing.

[0037] This embodiment, by setting an anti-splashing mechanism 4, utilizes the cooperation between the side wall annular groove 401 and the damping flange 403 to force the high-speed rotating solution to repeatedly change its flow direction when passing through multiple labyrinth channels, thereby gradually dissipating the harmful circumferential rotational kinetic energy into heat energy, while the axial propulsion speed is basically unaffected, completely solving the problem of outlet splashing caused by centrifugal force when conveying low-viscosity solutions at high speeds. Moreover, by setting an anti-splashing mechanism 4, this embodiment has a spiral microgroove 405 with the same rotation direction as the conveying direction of the spiral conveying shaft 303 on the outer circumferential surface of the damping flange 403. When rotating, it will generate an active pumping effect, which can force the solution that attempts to rotate or flow back along the wall to the discharge direction, effectively preventing solution backflow and splashing even under ultra-high speed conditions or at the moment of shutdown.

[0038] Example 3 To prevent the accumulation of residual low-viscosity solution in dead corners such as the root of the spiral blades and the bottom of the spiral groove after the conveying process, based on the above embodiments, such as Figure 1 , Figure 2 , Figure 8 as well as Figure 9As shown, this embodiment includes a self-cleaning mechanism 5. Specifically, the self-cleaning mechanism 5 includes a sealing end cap 501 fixedly installed at the discharge end of the conveying cylinder 2, an internal water tank 506 axially formed inside the screw conveyor shaft 303, a rotary joint 502 on the sealing end cap 501, the rotary joint 502 being rotatably and sealingly connected to the end of the screw conveyor shaft 303, a cleaning water pump 503 fixedly installed outside the conveying cylinder 2, a cleaning pipeline 504 connecting the output end of the cleaning water pump 503 and the rotary joint 502, and a water inlet connector 505 at the input end of the cleaning water pump 503. The 3 has several cleaning inclined holes 507 that communicate with the internal water tank 506. The water inlet connector 505 is connected to the external water pipe. When the cleaning water pump 503 is powered on, it will transport clean water to the inside of the internal water tank 506 through the cleaning pipe 504 and the rotary connector 502. Then, the clean water will be sprayed out through multiple cleaning inclined holes 507. The axis of the cleaning inclined hole 507 forms an angle of 20°-45° with the radial direction of the screw conveyor shaft 303. The outlet of the cleaning inclined hole 507 faces the unloading channel 302. Multiple rows of cleaning inclined holes 507 are opened along the axial direction of the screw conveyor shaft 303, and multiple holes are evenly distributed along the circumference in each row.

[0039] As can be seen from the above, after the conveying task is completed, the water inlet connector 505 is connected to the external water source and the cleaning water pump 503 is started. Then, the clean water will be conveyed to the rotary joint 502 through the cleaning pipeline 504, and then enter the internal water tank 506 opened along the axial direction inside the spiral conveying shaft 303 through the rotary sealing structure.

[0040] Since the cleaning inclined hole 507 is connected to the internal water tank 506, and the axis of the cleaning inclined hole 507 forms an angle of 20°-45° with the radial direction of the screw conveyor shaft 303, the clean water sprayed out at high speed from the inclined hole will form an inclined water column with a certain impact force, thereby quickly rinsing the surface of the screw blade, the root of the screw, and the inner wall of the conveying cylinder 2, and washing away the residual low viscosity solution.

[0041] At the same time, the screw conveyor shaft 303 will continue to rotate, thereby continuously discharging the cleaning wastewater in the conveying cylinder 2 out through the unloading channel 302.

[0042] This embodiment, by setting up a self-cleaning mechanism 5, utilizes the interaction between the internal water tank 506 and the cleaning inclined hole 507 to allow the cleaning fluid to be sprayed outward at high speed from the shaft center, forming an impactful inclined water column that directly washes the surface of the spiral blades, the spiral root, and the inner wall of the conveying cylinder 2. This achieves comprehensive and rapid cleaning of the conveying system without disassembling the equipment, significantly reducing equipment downtime and improving production efficiency. Moreover, by setting up the self-cleaning mechanism 5, the axis of the cleaning inclined hole 507 forms an angle of 20°-45° with the radial direction of the spiral conveying shaft 303, and multiple rows are opened along the axial direction, with each row evenly distributed circumferentially. This ensures that the cleaning water column can accurately cover the entire length of the spiral and spray into the blade back and root dead corners that are difficult to reach by traditional cleaning methods. In addition, the spiral conveying shaft 303 will continue to rotate during the cleaning process, so that the cleaning wastewater will be continuously discharged from the unloading channel 302, realizing a continuous operation mode of cleaning and discharge simultaneously, ensuring thorough cleaning without residual liquid accumulation.

[0043] Example 4 To maximize stability and minimize energy consumption during the material conveying process, based on the above embodiments, such as... Figure 1 , Figure 2 as well as Figure 10 As shown, this embodiment includes a stabilizing support mechanism 6. Specifically, the stabilizing support mechanism 6 includes fixed vertical plates 601 symmetrically arranged on the mounting base 1. An adjusting base 602 is hinged to the fixed vertical plate 601. An adjusting motor 603 for driving the fixed vertical plate 601 is fixedly installed on the outer side of the fixed vertical plate 601. A lifting platform 604 is movably mounted on the mounting base 1. A buffer pad 605 that contacts the conveying cylinder 2 is provided at the upper end of the lifting platform 604. The conveying cylinder 2 is mounted on the adjusting base 602, and the adjusting base 602 can rotate under the drive of the adjusting motor 603, thereby stabilizing the material. The tilt angle of the conveying cylinder 2 is adjusted so that its axis is tilted at an angle of 30°-45° to the horizontal plane. This allows the solution to be conveyed upward with the help of gravity, reducing the load on the screw pressurizing mechanism 3. It also ensures that the solution will not flow back quickly due to the large tilt angle when the machine stops, thus achieving a balance between conveying efficiency and anti-backflow performance. A transition chamber is formed between the three-stage pressurizing plate 307 and the anti-scattering mechanism 4. The high-pressure solution after three-stage pressurization is uniformly mixed and the pressure pulsation is reduced in this chamber. Then it smoothly enters the anti-scattering mechanism 4 for processing, further improving the uniformity and stability of the output.

[0044] As can be seen from the above, the conveying cylinder 2 is fixedly installed on the adjusting base 602. The adjusting base 602 is hinged to the fixed vertical plate 601 symmetrically arranged on the mounting base 1, forming a support structure that can rotate around the hinge point.

[0045] When it is necessary to adjust the conveying angle of the conveying cylinder 2, the adjusting motor 603 on the outside of the fixed vertical plate 601 will be powered on and started, thereby driving the adjusting base 602 to rotate up or down. When the adjusting base 602 rotates, the tilt angle of the conveying cylinder 2 will be adjusted.

[0046] At the same time, the hydraulically driven lifting platform 604 will move up or down synchronously, thereby ensuring that the buffer pad 605 always keeps in contact with the conveying cylinder 2. During the operation of the equipment, the buffer pad 605 is made of elastic material and keeps in contact with the conveying cylinder 2. It can absorb the vibration energy generated by the high-speed rotation of the screw conveyor shaft 303 and prevent the vibration from being transmitted to the mounting base 1 and the ground.

[0047] This embodiment uses a stable support mechanism 6, an adjusting motor 603 to drive the adjusting base 602 to rotate, and a hydraulically driven lifting platform 604 to keep the buffer pad 605 in contact with the conveying cylinder 2. This allows for precise angle adjustment of the conveying cylinder 2 within the range of 30°-45°. This not only allows for gravity-assisted upward conveying of the solution and reduces the load on the screw pressurizing mechanism 3, but also ensures that the solution will not flow back quickly due to excessive tilt angle when the machine stops, providing a stable foundation for precise conveying.

[0048] The control method of this invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0049] It should be noted that, in this document, relational terms such as first-level and second-level are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed screw conveyor feeding system suitable for low-viscosity solutions, comprising a mounting base (1) and a conveying cylinder (2) mounted on the mounting base (1), characterized in that: The conveying cylinder (2) is equipped with a spiral pressurizing mechanism (3) for pressurizing and conveying low viscosity solutions, and the discharge end of the conveying cylinder (2) is equipped with an anti-scattering mechanism (4) for reducing the rotational kinetic energy at the solution outlet. The spiral booster mechanism (3) includes a spiral conveying shaft (303) rotatably installed inside the conveying cylinder (2), and a first-stage booster plate (305), a second-stage booster plate (306), and a third-stage booster plate (307) sequentially sleeved on the discharge end of the spiral conveying shaft (303) along the axial direction. The outer diameters of the first-stage booster plate (305), the second-stage booster plate (306), and the third-stage booster plate (307) increase sequentially, gradually strengthening the axial compression of the solution. The back of the first-stage booster plate (305), the second-stage booster plate (306), and the third-stage booster plate (307) are all provided with an annular groove (308). The bottom of the annular groove (308) is provided with a backflow suppression hole (309) through the thickness direction of the booster plate. The backflow liquid is re-sprayed into the annular groove (308) through the backflow suppression hole (309) to form a vortex ring, so as to generate dynamic damping seal for the backflow liquid.

2. The high-speed screw conveyor feeding system for low-viscosity solutions according to claim 1, characterized in that: An annular gap is formed between the three-stage booster plate (307) and the inner wall of the conveying cylinder (2).

3. The high-speed screw conveyor feeding system for low-viscosity solutions according to claim 1, characterized in that: The feed end of the screw conveyor shaft (303) is provided with a feed channel (301), and the upper end of the conveying cylinder (2) is provided with a discharge channel (302). The opening direction of the discharge channel (302) is perpendicular to the axis of the screw conveyor shaft (303). The outside of the conveying cylinder (2) is provided with a conveying motor (304) that is connected to the screw conveyor shaft (303) for transmission.

4. The high-speed screw conveyor feeding system for low-viscosity solutions according to claim 1, characterized in that: The anti-scattering mechanism (4) includes at least one side wall annular groove (401) opened on the inner wall of the discharge end of the conveying cylinder (2), and a damping flange (403) provided on the discharge end of the screw conveyor shaft (303) and correspondingly cooperating with the side wall annular groove (401). The side wall annular groove (401) has a flow-facing slope (402) facing the feeding direction, and the damping flange (403) has a matching inclined surface (404) matching the flow-facing slope (402).

5. A high-speed screw conveyor feeding system suitable for low-viscosity solutions according to claim 4, characterized in that: The outer circumferential surface of the damping flange (403) is provided with a spiral microgroove (405), and the spiral direction of the spiral microgroove (405) is the same as the conveying direction of the spiral conveying shaft (303).

6. A high-speed screw conveyor feeding system suitable for low-viscosity solutions according to claim 1, characterized in that: The discharge end of the conveying cylinder (2) is provided with a self-cleaning mechanism (5). The self-cleaning mechanism (5) includes a sealing end cap (501) fixedly installed at the discharge end of the conveying cylinder (2). An internal water tank (506) is provided axially inside the screw conveying shaft (303). A rotary joint (502) is provided on the sealing end cap (501). The rotary joint (502) is rotatably sealed to the end of the screw conveying shaft (303). A cleaning water pump (503) is fixedly installed on the outside of the conveying cylinder (2). A cleaning pipeline (504) is connected between the output end of the cleaning water pump (503) and the rotary joint (502). A water inlet connector (505) is provided at the input end of the cleaning water pump (503). Several cleaning inclined holes (507) connected to the internal water tank (506) are provided on the screw conveying shaft (303).

7. A high-speed screw conveyor feeding system suitable for low-viscosity solutions according to claim 6, characterized in that: The axis of the cleaning inclined hole (507) forms an angle of 20°-45° with the radial direction of the screw conveyor shaft (303), and the outlet of the cleaning inclined hole (507) faces the unloading channel (302).

8. A high-speed screw conveyor feeding system suitable for low-viscosity solutions according to claim 1, characterized in that: The mounting base (1) is provided with a stable support mechanism (6) for adjusting the tilt angle of the conveying cylinder (2) and buffering the vibration of operation. The stable support mechanism (6) includes a fixed vertical plate (601) symmetrically arranged on the mounting base (1). An adjustable base (602) is hinged on the fixed vertical plate (601). An adjustable motor (603) for driving the fixed vertical plate (601) is fixedly installed on the outside of the fixed vertical plate (601). A lifting platform (604) is movably installed on the mounting base (1). A buffer pad (605) that contacts the conveying cylinder (2) is provided at the upper end of the lifting platform (604).

9. A high-speed screw conveyor feeding system suitable for low-viscosity solutions according to claim 8, characterized in that: The axis of the conveying cylinder (2) is inclined at an angle of 30°-45° to the horizontal plane.

10. A high-speed screw conveyor feeding system suitable for low-viscosity solutions according to claim 1, characterized in that: A transition chamber is formed between the three-stage booster plate (307) and the anti-scattering mechanism (4).

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