An underwater solid-liquid two-phase sediment characteristic particle size separation and collection device

Abstract

The application is suitable for the technical field of fluid machinery, and provides an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device.The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device comprises a fine sand separator for separating and treating sediment, a feeding hopper is fixedly installed at the feeding end of the fine sand separator through bolts, and is used for guiding the sediment to be separated into the fine sand separator; a discharge pipe is fixedly connected to the discharge end of the fine sand separator, the discharge pipe is used for pumping the slurry after the separated sand through a slurry pump, and the discharge end of the slurry pump is communicated with a collection bin through a guide pipe; and a separation mechanism is arranged on the fine sand separator and is used for separating the sediment. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device provided by the scheme solves the problems that the existing equipment is difficult to meet large-scale underwater operation and the separation and treatment effect of fine sand is not ideal.

Description

Technical Field

[0001] This invention belongs to the field of fluid machinery technology, and in particular relates to an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device. Background Technology

[0002] Currently, in underwater operations, especially in key applications such as underwater mining, waste disposal, sewage treatment, and water purification, the separation and collection technology of solid-liquid two-phase sediment characteristic particle size has always been a focus of research and practice.

[0003] Currently, traditional solid-liquid separation technologies, such as filters and centrifuges, while capable of achieving solid-liquid separation to some extent, face numerous challenges in their application in underwater environments. Firstly, traditional equipment consumes a lot of energy, and due to the unique nature of the underwater environment, maintenance costs are significantly increased. Furthermore, the complexity and uncertainty of the underwater operating environment, such as variations in water flow velocity, the diversity of solid particle properties, and fluctuations in liquid viscosity, pose severe challenges to the operating efficiency and stability of traditional equipment. This is especially true in extreme environments such as deep-sea mining, where the vulnerability and maintenance difficulties of traditional equipment are even more pronounced.

[0004] However, to address these issues, in recent years, domestic and international research institutions and enterprises have been dedicated to developing new underwater solid-liquid two-phase separation and collection devices. For example, Ocean Management Company (OMI), one of the four major deep-sea mining conglomerates in the West, has successfully developed a hydraulic lift pump specifically for deep-sea mining. This pump achieves high lift concentration and efficiency by adopting a segmented multi-stage centrifugal pump design and a smooth transition flow channel. However, although such equipment has achieved certain application results in specific fields such as deep-sea mining, it still suffers from problems such as poor underwater operation and high maintenance costs. At the same time, domestic enterprises such as Luoyang Longzhong Heavy Industry Machinery have also launched innovative products such as sludge purification equipment. Through the combined use of components such as vibrating screens and hydrocyclones, it has achieved coarse and fine screening separation of sludge and dewatering of waste residue. Currently, existing fine sand separation and collection devices still face key problems: first, there are very few devices that can work normally underwater, and their underwater operation is poor, which cannot meet the needs of large-scale underwater operations; second, it is difficult to achieve ideal results after fine sand separation and treatment, and the separation accuracy, efficiency, and resource recovery rate all need to be improved.

[0005] Therefore, this invention proposes an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device, aiming to solve the problems existing in the prior art. Summary of the Invention

[0006] To address the problems of existing equipment being unable to meet the requirements of large-scale underwater operations and the unsatisfactory effect of fine sand separation, this invention provides an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device.

[0007] This invention is implemented as follows: an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device, comprising: a fine sand separator for separating and processing sediment, wherein a feed hopper is fixedly installed at the feed end of the fine sand separator by bolts for introducing the sediment to be separated; a discharge pipe fixedly connected to the discharge end of the fine sand separator, the discharge pipe being connected to a mud pump to pump mud after sand separation, the discharge end of the mud pump being connected to a collection bin through a guide pipe; a separation mechanism disposed on the fine sand separator for separating sediment; a transmission mechanism disposed on the fine sand separator for transmission; a crushing mechanism disposed in the feed hopper and the fine sand separator for crushing large impurities in the sediment; and a dispersing mechanism disposed in the feed hopper for dispersing large pieces of sediment.

[0008] Preferably, the separation mechanism includes: symmetrically fixed screens installed on the fine sand separator for screening sand particles in the silt; a rotatable flushing pipe disposed within the fine sand separator for spraying water to flush the silt and separate sand particles; a water supply pipe fixedly installed on the fine sand separator, the outlet of the water supply pipe being fixedly connected to the inlet of the flushing pipe via a rotary joint for supplying water to the flushing pipe; a high-pressure water pump disposed at the inlet of the water supply pipe for pumping water into the water supply pipe; a sealing cover disposed outside the screen for collecting fine silt particles for easy suction, the sealing cover being fixedly connected to a mud pump for suctioning fine silt particles into the water; and spiral blades disposed on the inner wall of the fine sand separator.

[0009] Preferably, the transmission mechanism includes: an assembly box fixedly installed on the fine sand separator, wherein a motor and a speed regulator are provided inside the assembly box, and the output shaft of the motor is fixedly connected to the input shaft of the speed regulator via a coupling; a first transmission rod rotatably installed on the fine sand separator, the first transmission rod being fixedly connected to the output shaft of the speed regulator via a coupling; an assembly plate fixedly installed inside the fine sand separator, wherein a rotating rod is rotatably installed on the assembly plate, one end of the rotating rod being fixedly connected to the flushing pipe for driving the flushing pipe to rotate, and the other end of the rotating rod being fixedly installed with a first connecting rod via a coupling for transmission; and a first bevel tooth and a second bevel tooth respectively fixedly installed on the bottom end of the first transmission rod and the first connecting rod, the first bevel tooth meshing with the second bevel tooth for driving the first connecting rod to rotate.

[0010] Preferably, the crushing mechanism includes: a diversion shell and a mounting block fixedly installed inside the feed hopper; a cutter roller rotatably installed on the mounting block, one end of the cutter roller extending into the channel of the diversion shell for crushing large impurities in the mud and sand; cutter teeth fixedly installed in the channel of the diversion shell for cooperating with the cutter roller to crush large impurities in the mud and sand; a mounting plate fixedly installed inside the fine sand separator, on which a second transmission rod is rotatably installed, the second transmission rod being fixedly connected to the first connecting rod via a coupling; a first gear and a second gear fixedly installed on the second transmission rod and the cutter roller respectively, the first gear meshing with the second gear for driving the cutter roller to rotate.

[0011] Preferably, the dispersing mechanism includes: a spiral rod disposed in the feed hopper, the shaft of the spiral rod being fixedly mounted with a third transmission rod via a coupling, the third transmission rod being fixedly connected to the second transmission rod via a coupling for transmission; a connecting frame fixedly mounted on the spiral rod; and a dispersing frame fixedly mounted on the connecting frame for dispersing large pieces of mud and sand.

[0012] Preferably, a guide hopper is fixedly installed inside the fine sand separator, and multiple nozzles are fixedly installed on the flushing pipe for spraying water to flush away mud and sand.

[0013] Preferably, the top of the fine sand separator is symmetrically fixed with lifting rings, which are made of stainless steel and can be hooked by hoisting equipment.

[0014] Preferably, the dispersing frame is provided with dispersing teeth, which are evenly distributed to disperse large pieces of mud and sand.

[0015] Preferably, the assembly box is provided with a sealing inspection plate, which is fixedly connected to the assembly box by screws.

[0016] Preferably, the flow divider housing has a through hole, which is adapted to the third transmission rod so that it can pass through.

[0017] Compared with related technologies, the underwater solid-liquid two-phase sediment characteristic particle size separation and collection device provided by the present invention has the following beneficial effects:

[0018] Material is steadily introduced through the feed hopper, where large pieces of mud and sand are broken up by the dispersing frame and dispersing teeth in the dispersing mechanism, and large impurities are crushed by the cutter rollers and cutter teeth in the crushing mechanism. The solid-liquid separation is efficiently achieved by the screen and flushing pipe in the separation mechanism, while the motor and speed controller in the transmission mechanism provide power to ensure the coordinated operation of all components. Simultaneously, a mud pump and other components provide reasonable treatment of the mud and fine-particle mud and sand, ultimately improving separation accuracy, efficiency, and resource recovery rate. This solves the problems of existing equipment being unable to meet the requirements of large-scale underwater operations and poor fine sand separation effects. Furthermore, the device is stable, reliable, and easy to maintain. Attached Figure Description

[0019] Figure 1 This is a side view of a device for separating and collecting underwater solid-liquid two-phase sediment with characteristic particle size, provided by the present invention.

[0020] Figure 2 This is a side cross-sectional view of an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device provided by the present invention;

[0021] Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure;

[0022] Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure;

[0023] Figure 5 for Figure 2 An enlarged structural diagram of section C shown in the figure;

[0024] Figure 6 This is a schematic diagram of the main structure of the fine sand separator and flushing pipe in this invention;

[0025] Figure 7 This is a schematic diagram of the screw rod in this invention;

[0026] Figure 8 This is a schematic diagram of the structure of the screen in this invention.

[0027] Reference numerals: 1. Feed hopper; 2. Fine sand separator; 3. Screen; 4. Washing pipe; 5. Rotary joint; 6. Water supply pipe; 7. High-pressure water pump; 8. Discharge pipe; 9. Mud pump; 10. Assembly plate; 11. Rotating rod; 12. Mounting plate; 13. First connecting rod; 14. Assembly box; 15. First transmission rod; 16. First bevel gear; 17. Second bevel gear; 18. Motor; 19. Speed ​​regulator; 20. Diverter shell; 21. Mounting block; 22. Cutter roller; 23. Second transmission rod; 24. First gear; 25. Second gear; 26. Third transmission rod; 27. Spiral rod; 28. Connecting frame; 29. ​​Dispersing frame; 30. Cutter teeth; 31. Nozzle; 32. Guide hopper; 33. Lifting ring; 34. Guide pipe; 35. Collection bin; 36. Sealing cover; 37. Mud pump; 38. Spiral blade. Detailed Implementation

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification and the foregoing drawings are used to distinguish different objects, not to describe a particular order.

[0029] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0030] This invention provides an underwater solid-liquid two-phase sediment characteristic particle size separation and collection device, such as... Figure 1-8As shown, the underwater solid-liquid two-phase sediment characteristic particle size separation and collection device includes: a fine sand separator 2 for separating and processing sediment, wherein a feed hopper 1 is fixedly installed at the feed end of the fine sand separator 2 by bolts for introducing the sediment to be separated; a discharge pipe 8 fixedly connected to the discharge end of the fine sand separator 2, wherein the discharge pipe 8 is connected to a mud pump 9 to pump mud after the sand separation, and the discharge end of the mud pump 9 is connected to a collection bin 35 through a guide pipe 34; a separation mechanism provided on the fine sand separator 2 for separating sediment; a transmission mechanism provided on the fine sand separator 2 for transmission; a crushing mechanism provided in the feed hopper 1 and the fine sand separator 2 for crushing large impurities in the sediment; and a dispersing mechanism provided in the feed hopper 1 for dispersing large pieces of sediment.

[0031] In this embodiment, the underwater solid-liquid two-phase sediment characteristic particle size separation and collection device consists of a feed hopper 1, a fine sand separator 2, a discharge pipe 8, a mud pump 9, a guide pipe 34, a collection bin 35, and a separation mechanism and a transmission mechanism installed on the fine sand separator 2, as well as a crushing mechanism and a dispersing mechanism located in the feed hopper 1 and the fine sand separator 2. The sediment to be separated is introduced through the feed hopper 1, which is securely connected to the feed end of the fine sand separator 2 by bolts to ensure stable material input. The dispersing mechanism in the feed hopper 1 breaks up large pieces of sediment for subsequent processing. At the same time, the crushing mechanism in the feed hopper 1 and the fine sand separator 2 crushes large impurities in the sediment to prevent them from clogging key components. The separation mechanism on the fine sand separator 2 performs solid-liquid two-phase separation of the sediment. The separated sand is processed through a specific path, while the remaining mud is discharged through the discharge pipe 8, pumped by the mud pump 9, and transported to the collection bin 35 for collection through the guide pipe 34. In this process, the transmission mechanism provides power for the operation of each component within the fine sand separator 2, ensuring a stable and efficient separation process. The feed hopper 1, connected by bolts, ensures stable feeding and prevents material leakage. The crushing mechanism breaks down large impurities, preventing blockages and ensuring the normal operation of the device. The separation mechanism effectively separates mud and sand, improving separation accuracy, efficiency, and resource recovery rate, thus solving the problem of unsatisfactory fine sand separation results in existing systems. The synergistic action of the dispersing and crushing mechanisms makes the mud and sand entering the fine sand separator 2 more uniform, facilitating separation operations. The installation of the discharge pipe 8, mud pump 9, guide pipe 34, and collection bin 35 enables the orderly collection of separated mud, ensuring the continuity of device operation and the integrity of material processing. This improves underwater operation efficiency and the orderly recovery of resources, thereby solving the problem that existing equipment cannot meet the needs of large-scale underwater operations.

[0032] In a further preferred embodiment of the present invention, the separation mechanism includes: a screen 3 symmetrically fixedly installed on the fine sand separator 2 for screening sand particles in the silt; a rotatable flushing pipe 4 disposed within the fine sand separator 2 for spraying water to flush the silt and separate sand particles; a water supply pipe 6 fixedly installed on the fine sand separator 2, the outlet of the water supply pipe 6 being fixedly connected to the inlet of the flushing pipe 4 via a rotary joint 5 for supplying water to the flushing pipe 4; a high-pressure water pump 7 disposed on the inlet of the water supply pipe 6 for pumping water into the water supply pipe 6; a sealing cover 35 disposed outside the screen 3 for collecting fine silt particles for easy suction, a mud pump 37 fixedly connected to the sealing cover 35 for suctioning fine silt particles and discharging them underwater; and spiral blades 38 disposed on the inner wall of the fine sand separator 2.

[0033] In this embodiment, after the mud and sand to be separated enters the fine sand separator 2, the mud and sand are first preliminarily screened by symmetrically installed screens 3 to separate the sand particles from the mud and sand. The high-pressure water pump 7 is started to pump water into the water supply pipe 6. The water enters the rotatable flushing pipe 4 through the rotary joint 5. The flushing pipe 4 rotates and sprays water in the fine sand separator 2 to flush the mud and sand, further separating the sand particles from the mud and sand, making the mud and sand separation more thorough. The sealing cover 35 outside the screen 3 collects the fine mud and sand particles generated during the screening process to prevent them from spreading. The mud pump 37 on the sealing cover 35 sucks up the collected fine-particle mud and sand and discharges it underwater, quickly carrying away the fine-particle mud and sand; the spiral blades 38 on the inner wall of the fine sand separator 2 guide the coarse-particle mud and sand, making it easier to suck up and process; the synergistic effect of the screen 3 and the washing pipe 4 can more effectively screen and wash the mud and sand, separating the sand particles from the mud and sand more accurately, improving the separation precision, and helping to obtain purer sand particles and clearer mud; the setting of the sealing cover 35 effectively prevents fine-particle mud and sand from being trapped in the mud and sand. The sand diffuses during the screening process, keeping the inside of the device clean and preventing fine sand particles from interfering with subsequent separation operations. The mud pump 37 can quickly pump away the fine sand particles and discharge them underwater, improving the processing efficiency of fine sand particles. At the same time, the spiral blades 38 guide the flow of coarse sand particles, making the suction and processing of coarse sand particles smoother. The working efficiency of the entire separation mechanism is improved, further solving the problem that existing equipment cannot achieve ideal results after fine sand separation and improving the resource recycling rate.

[0034] In a further preferred embodiment of the present invention, the transmission mechanism includes: an assembly box 14 fixedly installed on the fine sand separator 2, wherein a motor 18 and a speed regulator 19 are disposed inside the assembly box 14, and the output shaft of the motor 18 is fixedly connected to the input shaft of the speed regulator 19 via a coupling; a first transmission rod 15 rotatably installed on the fine sand separator 2, wherein the first transmission rod 15 is fixedly connected to the output shaft of the speed regulator 19 via a coupling; an assembly plate 10 fixedly installed inside the fine sand separator 2, wherein a rotating rod 11 is rotatably installed on the assembly plate 10, one end of the rotating rod 11 is fixedly connected to the flushing pipe 4 for driving the flushing pipe 4 to rotate, and the other end of the rotating rod 11 is fixedly installed with a first connecting rod 13 via a coupling for transmission; and a first bevel tooth 16 and a second bevel tooth 17 respectively fixedly installed on the bottom end of the first transmission rod 15 and the first connecting rod 13, wherein the first bevel tooth 16 and the second bevel tooth 17 mesh with each other for driving the first connecting rod 13 to rotate.

[0035] In this embodiment, the assembly box 14 is fixedly installed on the fine sand separator 2, providing a relatively enclosed and stable installation space for the internal motor 18 and speed regulator 19. The motor 18 serves as a power source, and its output shaft is fixedly connected to the input shaft of the speed regulator 19 via a coupling. During operation, the motor 18 starts and outputs power, which is first transmitted to the speed regulator 19. The assembly box 14 allows the motor 18 and speed regulator 19 to operate stably in a protected environment, avoiding interference and erosion from external factors (such as water and sediment), extending their service life, and ensuring the stability and reliability of the entire transmission system. The motor 18 provides the initial power for the entire transmission mechanism and related components such as the flushing pipe 4, serving as the power source for the rotation of the flushing pipe 4. The presence of the speed regulator 19 allows for flexible adjustment of the output speed of the motor 18 according to actual needs, thereby controlling the rotation speed of components such as the flushing pipe 4. For example, when processing mud and sand materials with different properties (such as different viscosity) or different flow rates, the speed can be adjusted to a suitable speed by the speed regulator 19 to achieve the best flushing and separation effect, improving the adaptability of the device to different working conditions. The first transmission rod 15 is rotatably mounted on the fine sand separator 2, and one end of it is fixedly connected to the output shaft of the speed regulator 19 through a coupling. When the speed regulator 19 receives the power from the motor 18 and adjusts the speed, it will transmit the power to the first transmission rod 15, causing it to start rotating. The first transmission rod 15 acts as a bridge between the speed regulator 19 and the subsequent transmission components. It accurately transmits the appropriate power and speed adjusted by the speed regulator 19, ensuring the continuity and stability of the entire transmission link, so that the subsequent transmission actions related to the flushing pipe 4 can be carried out according to the predetermined requirements, providing the necessary power transmission guarantee for the effective rotation of the flushing pipe 4. The mounting plate 10 is fixedly installed inside the fine sand separator 2, providing a stable rotating mounting base for the rotating rod 11. One end of the rotating rod 11 is fixedly connected to the flushing pipe 4, and the other end is fixedly installed with the first connecting rod 13 via a coupling.When the first transmission rod 15 rotates, it transmits power to the first connecting rod 13 through subsequent transmission components, thereby driving the rotating rod 11 to rotate, ultimately realizing the rotation of the flushing pipe 4. The fixed installation of the mounting plate 10 ensures the stability of the rotation of the rotating rod 11, preventing wobbling or deviation during the transmission of power to drive the flushing pipe 4. This ensures that the flushing pipe 4 can rotate smoothly, facilitating uniform and effective water spraying. The rotating rod 11 is directly connected to the flushing pipe 4, effectively transmitting the power from the first connecting rod 13 to the flushing pipe 4, thus enabling... The flushing pipe 4 can rotate according to a predetermined rhythm and direction, achieving all-round flushing of mud and sand, improving the flushing effect and efficiency. The first connecting rod 13 plays the role of connecting and transmitting power in the entire transmission link. It further transmits the power from the first transmission rod 15 to the rotating rod 11, ensuring the continuity and accuracy of power transmission, enabling the entire transmission system to work together and drive the flushing pipe 4 to rotate smoothly. The first bevel tooth 16 is fixedly installed at the bottom end of the first transmission rod 15, and the second bevel tooth 17 is fixedly installed on the first connecting rod 13, with the first bevel tooth 16 and the second bevel tooth 17 meshing. When the first transmission rod 15 rotates, the power is transmitted from the first transmission rod 15 to the first connecting rod 13 through the meshing transmission of the first bevel tooth 16 and the second bevel tooth 17, thereby driving the first connecting rod 13 to rotate. This ensures that the flushing pipe 4 can receive stable power drive and rotate smoothly, further improving the working efficiency and reliability of the entire device.

[0036] In a further preferred embodiment of the present invention, the crushing mechanism includes: a diversion shell 20 and a mounting block 21 fixedly installed in the feed hopper 1; a cutter roller 22 rotatably installed on the mounting block 21, one end of the cutter roller 22 extending into the channel of the diversion shell 20 for crushing large impurities in the mud and sand; cutter teeth 30 fixedly installed in the channel of the diversion shell 20 for cooperating with the cutter roller 22 to crush large impurities in the mud and sand; a mounting plate 12 fixedly installed in the fine sand separator 2, a second transmission rod 23 rotatably installed on the mounting plate 12, the second transmission rod 23 being fixedly connected to the first connecting rod 13 via a coupling; a first gear 24 and a second gear 25 respectively fixedly installed on the second transmission rod 23 and the cutter roller 22, the first gear 24 meshing with the second gear 25 for driving the cutter roller 22 to rotate.

[0037] In this embodiment, both the diversion shell 20 and the mounting block 21 are fixedly installed inside the feed hopper 1. The diversion shell 20 forms a specific channel, and some of the mud and sand will flow into the channel of the diversion shell 20 after entering the feed hopper 1. The mounting block 21 provides a support point for the rotating installation of the cutter roller 22, so that the cutter roller 22 can be stably installed in a suitable position inside the feed hopper 1. The channel structure of the diversion shell 20 can play a preliminary guiding and diversion role for the mud and sand entering the feed hopper 1, so that the mud and sand can contact the cutter roller 22 and the internal cutting teeth 30 more orderly, improving the crushing efficiency and uniformity. The mounting block 21 ensures the firmness and stability of the installation of the cutter roller 22, avoiding the swaying or displacement of the cutter roller 22 during high-speed rotating crushing, ensuring the safety and effectiveness of the crushing operation; the cutter roller 22 is rotatably installed on the mounting block 21, with one end extending into the channel of the diversion shell 20. During the entire operation of the device, the cutter roller 22 rotates receiving power from the transmission mechanism, cooperating with the cutter teeth 30 in the channel of the diversion shell 20 to crush large impurities in the mud and sand. The cutters on the cutter roller 22 generate powerful shearing and impact forces through high-speed rotation, effectively crushing large impurities in the mud and sand into smaller particles. The cooperation with the cutter teeth 30 further enhances the crushing effect. The interaction between the two can handle large impurities of various shapes and hardness, allowing the mud and sand to undergo preliminary refinement before entering the fine sand separator 2, preventing large impurities from clogging the screen 3 or other components of the fine sand separator 2, ensuring the stable operation of the entire device, and also helping to improve the accuracy and efficiency of subsequent separation processes. The cutter teeth 30 are fixedly installed in the channel of the diversion shell 20, forming a relative motion with the rotating cutter roller 22. When the mud and sand flows through the channel of the diversion shell 20, the cutter roller 22 and the cutter teeth 30 work together, with the cutter teeth 30 playing a fixed cutting and crushing auxiliary role. The cutter teeth 30 and the cutter roller 22 together construct a crushing space, increasing the crushing points and crushing methods for large impurities. The cutting teeth 30 can perform secondary crushing of large impurities that are not completely crushed by the cutter roller 22, or fix them so that the cutter roller 22 can better apply force for crushing, thereby improving the thoroughness and effect of crushing. This results in smaller and more uniform impurity particles in the mud and sand entering the subsequent stages, which is beneficial to the fine processing of mud and sand by the entire device. The mounting plate 12 is fixedly installed inside the fine sand separator 2, providing a rotating mounting base for the second transmission rod 23. The second transmission rod 23 is fixedly connected to the first connecting rod 13 through a coupling, thereby receiving power from the first connecting rod 13 and starting to rotate. The first gear 24 is fixedly installed on the second transmission rod 23, and the second gear 25 is fixedly installed on the cutter roller 22. The first gear 24 and the second gear 25 mesh. When the second transmission rod 23 rotates, the power is transmitted to the cutter roller 22 through gear meshing, driving the cutter roller 22 to rotate.

[0038] In a further preferred embodiment of the present invention, the dispersing mechanism includes: a spiral rod 27 disposed in the feed hopper 1, the shaft of the spiral rod 27 being fixedly mounted with a third transmission rod 26 via a coupling, the third transmission rod 26 being fixedly connected to the second transmission rod 23 via a coupling for transmission; a connecting frame 28 fixedly mounted on the spiral rod 27; and a dispersing frame 29 fixedly mounted on the connecting frame 28 for dispersing large pieces of mud and sand.

[0039] In this embodiment, the screw rod 27 is disposed inside the feed hopper 1, and its shaft is fixedly connected to the third transmission rod 26 via a coupling. The third transmission rod 26 is in turn fixedly connected to the second transmission rod 23 via a coupling. During operation, power is transmitted from the second transmission rod 23, through the third transmission rod 26, to the screw rod 27, driving it to rotate. The third transmission rod 26 acts as a bridge, accurately transmitting the power from the second transmission rod 23 to the screw rod 27, ensuring the continuity and stability of power transmission. Upon receiving power, the screw rod 27 rotates, and its spiral structure can agitate and transport the mud and sand material in the feed hopper 1 to a certain extent. On the one hand, agitation allows the mud and sand to be distributed more evenly within the feed hopper 1, preventing localized accumulation. On the other hand, this conveying action facilitates smoother movement of the mud and sand towards subsequent crushing mechanisms and other components, providing a more stable and uniform material flow for subsequent processing stages, thus improving the smoothness and continuity of the entire device's operation. The connecting frame 28 is fixedly mounted on the screw rod 27 and moves synchronously with the rotation of the screw rod 27. It provides a mounting foundation for the disintegrating frame 29, enabling the disintegrating frame 29 to be stably positioned in a suitable location. The fixed installation of the connecting frame 28 ensures the stability of the disintegrating frame 29 during operation. It can withstand various forces generated by the disintegrating frame 29 when disintegrating large pieces of mud and sand, preventing the disintegrating frame 29 from shaking or falling off, ensuring the overall reliability and effectiveness of the disintegrating mechanism, and enabling the disintegrating operation to proceed continuously and stably. The disintegrating frame 29 is fixedly mounted on the connecting frame 28 and located within the feed hopper 1. When the screw rod 27 rotates, it drives the connecting frame 28 and the dispersing frame 29 to move together. The dispersing frame 29, through its specific structure, disperses large pieces of mud and sand. The main function of the dispersing frame 29 is to disperse large pieces of mud and sand in the feed hopper 1. Its structural design can apply appropriate impact and shear forces to large pieces of mud and sand, breaking them down into smaller particles or clumps, so that the mud and sand can reach a relatively uniform state before entering the subsequent crushing mechanism. This not only helps the crushing mechanism to crush impurities in the mud and sand more efficiently, and makes smaller pieces of mud and sand easier to process, but also makes the mud and sand entering the fine sand separator 2 more uniform in terms of particle size, which facilitates the separation mechanism to better perform solid-liquid two-phase separation, further improving the overall separation effect and working efficiency of the device. This helps to solve the problem that existing equipment cannot meet the needs of large-scale underwater operations and the unsatisfactory fine sand separation effect.

[0040] In a further preferred embodiment of the present invention, a guide hopper 32 is fixedly installed inside the fine sand separator 2, and a plurality of nozzles 31 are fixedly installed on the flushing pipe 4 for spraying water to flush the mud and sand.

[0041] In this embodiment, the guide hopper 32 is fixedly installed inside the fine sand separator 2. When the silt and sand are introduced into the fine sand separator 2, they flow and are processed within the separator's internal space. The guide hopper 32 guides the material flow direction, allowing the silt and sand to move along a predetermined path within the fine sand separator 2. This helps to regulate the flow path of the silt and sand within the separator 2, preventing problems such as material accumulation and insufficient processing caused by disordered flow. By rationally guiding the flow of the silt and sand, it ensures that the silt and sand contact other components within the fine sand separator 2 more evenly, improving the efficiency and effectiveness of the entire separation process. The nozzles 31 are fixedly installed on the flushing pipe 4, and multiple nozzles are evenly distributed on the flushing pipe 4. When the flushing pipe 4 starts operating, high-pressure water supplied through the water supply pipe enters the flushing pipe 4, and water is sprayed from these nozzles 31 to flush the silt and sand within the fine sand separator 2. The arrangement of multiple nozzles 31 enables multi-angle and all-round flushing of the silt and sand. Compared to a single nozzle, multiple nozzles can cover a wider area, ensuring that sand and mud at different locations within the fine sand separator 2 are thoroughly washed. This significantly improves the breaking up of sand clumps, the separation of sand particles from slurry, and the removal of impurities from the surface of sand particles. Through comprehensive washing, sand particles are more thoroughly flushed out of the sand mixture, increasing their purity. Simultaneously, it better separates slurry from sand particles, further enhancing the separation accuracy and efficiency of the device. This contributes to obtaining higher-quality sand products and purer slurry to meet diverse industrial or resource recycling needs.

[0042] In a further preferred embodiment of the present invention, the top of the fine sand separator 2 is symmetrically fixed with lifting rings 33, which are made of stainless steel and can be used for hoisting equipment.

[0043] In this embodiment, lifting rings 33 are symmetrically fixedly installed on the top of the fine sand separator 2. When it is necessary to move, install, or maintain the fine sand separator 2, lifting equipment (such as a crane hook) can be hooked onto the lifting rings 33, and the lifting and moving of the fine sand separator 2 can be achieved by the pulling force applied by the lifting equipment. This facilitates the movement and installation of the equipment: the presence of the lifting rings 33 makes it more convenient for the fine sand separator 2 to be moved between different work sites during the assembly process of the entire device. At the installation site, workers can easily and accurately lift the fine sand separator 2 to the predetermined position and install it, without the need for laborious and difficult-to-precise manual handling by multiple people, greatly improving installation efficiency and reducing labor intensity. When the equipment needs to be relocated or rearranged, the lifting work can also be completed quickly and conveniently. This also facilitates the maintenance and repair of the equipment: when the fine sand separator 2 needs regular maintenance, repair, or needs to be disassembled for inspection due to malfunction, the lifting rings 33 allow maintenance personnel to easily lift it from its operating position and move it to a suitable maintenance site. This allows maintenance personnel to more easily perform comprehensive inspections, repairs, and parts replacements, reducing maintenance difficulties and extended repair times caused by equipment mobility limitations. This ensures the equipment's normal operating cycle and improves maintainability. The lifting ring 33 is made of stainless steel, which possesses excellent corrosion resistance, high strength, and durability. In underwater operating environments, equipment frequently comes into contact with water, silt, and various corrosive substances. The stainless steel lifting ring 33 effectively resists these corrosive factors, ensuring that its structural integrity and strength remain unaffected during long-term use. This allows it to reliably undertake the hooking task of lifting equipment, guaranteeing the safety and stability of the equipment lifting process.

[0044] In a further preferred embodiment of the present invention, the dispersing frame 29 is provided with dispersing teeth, which are evenly distributed and used to disperse large pieces of mud and sand.

[0045] In this embodiment, the dispersing teeth are arranged on the dispersing frame 29 and are evenly distributed. When the dispersing frame 29 moves within the feed hopper 1 with the rotation of the screw rod 27, these evenly distributed dispersing teeth come into direct contact with and interact with large pieces of mud and sand. The evenly distributed dispersing teeth ensure that a relatively uniform impact force and shear force are applied to the large pieces of mud and sand during the rotation of the dispersing frame 29. Each dispersing tooth can be regarded as an independent point of action. When the dispersing frame 29 rotates, these points of action collide with and cut the large pieces of mud and sand in sequence, thereby effectively breaking down the large pieces of mud and sand into smaller particles or clumps. Compared with the case of no dispersing teeth or unevenly distributed dispersing teeth, this evenly distributed dispersing teeth can more comprehensively and efficiently disperse large pieces of mud and sand, so that the mud and sand can reach a relatively uniform state before entering the subsequent crushing mechanism.

[0046] In a further preferred embodiment of the present invention, a sealing inspection plate is provided on the assembly box 14, and the sealing inspection plate is fixedly connected to the assembly box 14 by screws.

[0047] In this embodiment, the sealing inspection plate is mounted on the assembly box 14 and fixedly connected to the assembly box 14 by screws. When it is necessary to inspect, maintain, or check the operating status of components such as the motor 18 and speed controller 19 inside the assembly box 14, the screws can be unscrewed and the sealing inspection plate removed to expose the internal space of the assembly box 14, allowing maintenance personnel to directly access the relevant components for corresponding operations. After the inspection or maintenance work is completed, the sealing inspection plate is then re-fixed to the assembly box 14 with screws.

[0048] In a further preferred embodiment of the present invention, the flow divider shell 20 is provided with a through hole, which is adapted to the third transmission rod 26 and allows it to pass through.

[0049] In this embodiment, the diverter housing 20 has a through hole that is compatible with the third transmission rod 26. During the assembly of the device, the third transmission rod 26 will pass through the through hole, so that the third transmission rod 26 can connect with the second transmission rod 23 while realizing its own transmission function.

[0050] It is worth noting that the circuits, electronic components, and modules involved in this invention are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this invention does not involve improvements to the software and methods.

[0051] In summary, compared with related technologies, the underwater solid-liquid two-phase sediment characteristic particle size separation and collection device proposed in this invention steadily introduces materials through the feed hopper 1. Large pieces of sediment are broken up by the dispersing frame 29 and dispersing teeth in the dispersing mechanism, and large impurities are crushed by the cutter roller 22 and cutter teeth 30 in the crushing mechanism. Solid and liquid are efficiently separated by the screen 3 and flushing pipe 4 in the separation mechanism. The motor 18 and speed regulator 19 in the transmission mechanism provide power to ensure the coordinated operation of all components. Simultaneously, the mud pumps 9 and 37 provide reasonable treatment of the mud and fine sediment particles, ultimately improving separation accuracy, efficiency, and resource recovery rate. This solves the problems of existing equipment being unable to meet the requirements of large-scale underwater operations and poor fine sand separation effects. Furthermore, the device is stable, reliable, and easy to maintain.

[0052] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0053] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. An underwater solid-liquid two-phase sediment characteristic particle size separation and collection device, characterized in that, Suitable for underwater operating environments, including: A fine sand separator (2) for separating and processing mud and sand, wherein the feed end of the fine sand separator (2) is fixedly installed with a feed hopper (1) by bolts for introducing the mud and sand to be separated; A discharge pipe (8) is fixedly connected to the discharge end of the fine sand separator (2). The discharge pipe (8) is connected to the first mud pump (9) to pump mud after sand separation. The discharge end of the first mud pump (9) is connected to the collection bin (35) through the guide pipe (34). A separation mechanism installed on the fine sand separator (2) is used to separate mud and sand materials. The separation mechanism includes: A screen (3) is symmetrically fixed on the fine sand separator (2) for screening sand particles in the mud and sand material; A rotatable flushing pipe (4) is installed inside the fine sand separator (2) for spraying water to flush the mud and sand material and separate the sand particles; A water supply pipe (6) is fixedly installed on the fine sand separator (2). The outlet pipe of the water supply pipe (6) is fixedly connected to the inlet end of the flushing pipe (4) through a rotary joint (5) for supplying water to the flushing pipe (4). A high-pressure water pump (7) is installed at the inlet end of the water supply pipe (6) to pump water into the water supply pipe (6); A sealing cover (36) is installed outside the screen (3) to collect fine particles of mud and sand for easy suction. A second mud pump (37) for suctioning fine particles of mud and sand into the water is fixedly connected to the sealing cover (36). Spiral blades (38) are installed on the inner wall of the fine sand separator (2); A transmission mechanism for transmission is provided on the fine sand separator (2), the transmission mechanism comprising: An assembly box (14) is fixedly installed on the fine sand separator (2). The assembly box (14) contains a motor (18) and a speed regulator (19). The output shaft of the motor (18) is fixedly connected to the input shaft of the speed regulator (19) through a coupling. Rotate the first transmission rod (15) mounted on the fine sand separator (2), the first transmission rod (15) being fixedly connected to the output shaft of the speed regulator (19) via a coupling; An assembly plate (10) is fixedly installed inside the fine sand separator (2). A rotating rod (11) is rotatably installed on the assembly plate (10). One end of the rotating rod (11) is fixedly connected to the flushing pipe (4) for driving the flushing pipe (4) to rotate. The other end of the rotating rod (11) is fixedly installed with a first connecting rod (13) through a coupling for transmission. A first bevel tooth (16) and a second bevel tooth (17) are respectively fixedly installed on the bottom end of the first transmission rod (15) and the first connecting rod (13). The first bevel tooth (16) and the second bevel tooth (17) mesh with each other and are used to drive the first connecting rod (13) to rotate. The crushing mechanism installed in the feed hopper (1) and the fine sand separator (2) is used to crush large impurities in the mud and sand; The dispersing mechanism installed in the feed hopper (1) is used to disperse large pieces of mud and sand.

2. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 1, characterized in that, The crushing mechanism includes: The diversion shell (20) and the mounting block (21) are fixedly installed inside the feed hopper (1); Rotate the cutter roller (22) mounted on the mounting block (21), one end of the cutter roller (22) extending into the channel of the diversion shell (20) for crushing large impurities in the mud and sand; The blades (30) are fixedly installed in the channel of the diversion shell (20) for cooperating with the blade roller (22) to crush large impurities in the mud and sand. A mounting plate (12) is fixedly installed inside the fine sand separator (2). A second transmission rod (23) is rotatably mounted on the mounting plate (12). The second transmission rod (23) is fixedly connected to the first connecting rod (13) through a coupling. A first gear (24) and a second gear (25) are respectively fixedly installed on the second transmission rod (23) and the cutter roller (22). The first gear (24) meshes with the second gear (25) to drive the cutter roller (22) to rotate.

3. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 2, characterized in that, The disintegration mechanism includes: The screw rod (27) is installed in the feed hopper (1). The shaft of the screw rod (27) is fixedly installed with a third transmission rod (26) through a coupling. The third transmission rod (26) is fixedly connected to the second transmission rod (23) through a coupling for transmission. A connecting bracket (28) is fixedly installed on the screw rod (27); The disintegration frame (29) is fixedly installed on the connecting frame (28) and is used to break up large pieces of mud and sand.

4. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 1, characterized in that, The fine sand separator (2) is fixedly installed with a guide hopper (32), and the flushing pipe (4) is fixedly installed with multiple nozzles (31) for spraying water to flush the mud and sand.

5. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 1, characterized in that, The top of the fine sand separator (2) is symmetrically fixed with lifting rings (33), which are made of stainless steel and can be used for hoisting equipment.

6. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 3, characterized in that, The dispersing frame (29) is equipped with dispersing teeth, which are evenly distributed and used to disperse large pieces of mud and sand.

7. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 1, characterized in that, The assembly box (14) is provided with a sealing inspection plate, which is fixedly connected to the assembly box (14) by screws.

8. The underwater solid-liquid two-phase sediment characteristic particle size separation and collection device as described in claim 3, characterized in that, The flow divider shell (20) has a through hole, which is adapted to the third transmission rod (26) so that it can pass through.

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