32 results about "Sediment particle" patented technology

The invention provides a suspended sediment concentration inversion method capable of resisting particle size interference, which comprises the following steps of: standardizing the original acoustic echo intensity of each observation grid to obtain the standardized volume back scattering intensity; establishing a sonar equation considering the sound wave attenuation of the sediment particles, and performing explicit processing on the sonar equation considering the sound wave attenuation of the sediment particles to obtain an explicit inversion model which resists particle size interference and considers the on-way change of the sediment particle size; and performing model parameter calibration on the explicit inversion model, and performing suspended sediment concentration inversion on the river observation section based on the suspended sediment concentration inversion value of each observation grid. According to the method, the dependence of ADCP inversion of the suspended sediment concentration on suspended sediment particle size distribution is effectively eliminated, and the stability and accuracy of suspended sediment concentration inversion are improved. The particle size interference resistant explicit method can realize continuous and real-time suspended sediment concentration monitoring, and is suitable for various water environments such as rivers, lakes, reservoirs and the like.

The invention discloses a suspended sediment transportation and reservoir desilting system, and relates to the technical field of hydraulic engineering, the system comprises an acoustic control array module used for forming an acoustic potential well in water above a reservoir bottom sludge layer to capture sediment particle groups in the reservoir bottom sludge layer; the sediment gathering and collecting module is used for collecting sediment particle groups and gathering the sediment particle groups at a sediment gathering target point to form slurry; the control unit is used for generating an acoustic potential well moving path based on the acoustic control array module position information, the reservoir bottom terrain and the sediment collection target point, and is used for controlling emission parameters of the acoustic control array module based on the acoustic potential well and the movement state of the sediment particle population and the concentration of the sediment particle population; according to the invention, non-contact, directional and collaborative transportation of sediment particle groups can be realized, and the sediment particle groups are orderly guided to a collection point, so that low-energy-consumption, low-disturbance, high-efficiency and intelligent dredging operation is realized.

The invention discloses a device and method suitable for simulating the whole process of flocculation and sedimentation of sediment particles in a reservoir area, and belongs to the technical field of flocculation and sedimentation simulation. The device comprises a sediment uniform mixing device, a flocculation generator and a flocculation observation chamber; the silt uniform mixing device is located beside the flocculation generator, the flocculation generator comprises an inner cylinder and an outer cylinder, a water inlet is formed in the top of the flocculation generator, and the inner cylinder is driven by a motor to form water flow between the two cylinders; the flocculation observation chamber is located below the flocculation generator, a separation opening is formed in the top of the flocculation observation chamber, a water drainage opening is formed in the bottom of the flocculation observation chamber, a black background curtain is arranged on the inner wall of the back plate side of the flocculation observation chamber, a laser transmitter is arranged outside the flocculation observation chamber, and a CCD camera is arranged outside the flocculation observation chamber and used for observing the sedimentation process of floccules. According to the invention, the whole process from generation, development to sedimentation of the flocculating constituent is free from disturbance, quantitative simulation and observation can be realized, and a theoretical support is provided for research of reservoir sediment sedimentation and analysis of influence factors.

The application discloses a bridge scour simulation and boundary setting method for SPH water-sand two-phase flow, and comprises the following steps: model construction, including setting a bed sand layer area range and defining an inlet and outlet boundary area range; particle construction, including setting fluid particles and bed sand particles of a flow field area based on a multiphase flow theory, setting soil yield strength based on a HBP model and introducing a DP yield criterion, initializing inlet and outlet boundary particle parameters, setting particle type identification, and setting particle position identification; N-S control equation solving, obtaining corresponding flow force parameter results; entering a sediment solving module, including sediment particle conversion and viscosity updating calculation; entering an inlet and outlet boundary updating module, including inlet and outlet particle position retrieval, particle type conversion, and particle supplement and deletion; completing a calculation cycle and entering the next cycle; through secondary development based on the SPH multiphase flow theory, the application can realize numerical simulation of foundation local scour by applying the inlet and outlet boundaries to the multiphase flow model and introducing various structure and state models.

The invention discloses a wetland nitrogen cycle optimization method and system based on machine learning, and belongs to the technical field of ecological engineering.The method comprises the steps that according to a comprehensive environment data set, a transverse lateral infiltration path and a vertical priority flow path are recognized, spatio-temporal evolution simulation is conducted through a cellular automaton model, and a nitrogen migration path is constructed; analyzing the interaction between the water flow driving flux and the underground water level on the path resistance, and determining the broadening degree of the transverse lateral seepage path; if the widening degree exceeds a preset threshold value, integrating the water body turbulence intensity data and the flow velocity shear effect value, and obtaining a bubble escape rate and a surface sediment disturbance frequency; calculating the nitrogen saturation and the spatial distribution of the sediment particle suspension amount, and obtaining the total re-release flux through flux overlay analysis; and constructing a nitrogen loss flux model in combination with the fluctuation rule, simulating the change of the nitrogen loss proportion, and determining the net nitrogen loss flux. According to the invention, fine monitoring of the dynamic change of wetland nitrogen can be realized.

The invention provides an ancient coastal sand dam prediction method and device, equipment and a medium, and relates to the technical field of oil-gas exploration. Comprising the following steps: acquiring fluctuation data of an ancient landform in a region, wave mark parameters in sedimentary rock, sediment particle diameter and sediment density; according to the fluctuation data of the ancient landform, determining the gradient of the ancient landform of the region; determining the sedimentary paleo-water depth according to the wave mark parameter, the sediment particle diameter and the sediment density in the sedimentary rock; and the thickness of the ancient coastal sand dam is determined according to the paleo-terrain gradient and the sedimentary paleo-water depth. According to the method, the thickness of the paleo-coastal sand dam is determined by analyzing the paleo-terrain gradient and the sedimentary paleo-water depth in the area, the potential reservoir in the area is rapidly identified in the early stage of exploration, and a basis is provided for well drilling deployment.

The application relates to the technical field of salt rock underground storage, in particular to a salt rock storage water-soluble cavity sediment accumulation angle prediction method. The method comprises the following steps: preparing at least four groups of sediment samples according to different particle sizes; obtaining average particle parameters and average accumulation angles of the sediment samples; obtaining an initial prediction formula of the accumulation angle, wherein the initial prediction formula of the accumulation angle comprises four prediction parameters; calculating the prediction parameters according to the average particle parameters and the average accumulation angles, and determining an accumulation angle prediction formula, so as to realize the prediction of the sediment accumulation angle. The application solves the problems that the sediment particle accumulation angle is not easy to measure and is not accurately measured, improves the transparency of the underground sediment particle accumulation, and can be used not only for analyzing the dynamic accumulation angle change process of the salt cavity bottom sediment particles in the water-soluble cavity forming process, but also for predicting the sediment accumulation situation at the bottom of the unexplored salt cave.

A production apparatus for a shaped body containing sedimenting particles and a method for producing a shaped body containing sedimenting particles that can continuously mass-produce shaped bodies containing a fixed amount of sedimenting particles. A production apparatus for a shaped body containing sedimenting particles, the apparatus being provided with an ejection head that ejects a liquid containing sedimenting particles, as a liquid droplet, onto a droplet landing element, and a supply apparatus that supplies the liquid to the ejection head, wherein the supply apparatus includes a storage module that extends in a direction transverse to the vertical direction and that stores the liquid, a supply module that supplies the liquid in the storage module from one end in a central axis direction of the storage module, and an agitation unit that rotates the storage module in a circumferential direction about the central axis of the storage module to agitate the liquid inside the storage module.

The utility model relates to collecting device technical field especially, it relates to a sediment interface water in situ collection device with prevent blocking microfiltration head. The utility model provides such a sediment interface water in situ collection device with prevent blocking microfiltration head, including cylinder, water outlet pipe, valve, screen, threaded block, first suspension ball, counterweight, motor and rotating frame, the cylinder is hollow column, and its upper portion outside is spaced apart and is equipped with a plurality of water inlets along the circumference, and the lower left side of cylinder is connected and is communicated with water outlet pipe, and the valve is installed on water outlet pipe, and the screen is detachably connected with the upper side in the cylinder. Through screen filtration sampling water, effectively block sediment particle and macromolecular impurity, cooperate motor drive's rotating frame, can remove flocculent pollutant, biological membrane etc. blocking object on the surface of screen in real time, solve the problem that traditional screen is easy to block.

This invention relates to the field of sediment and water sample filtration technology, specifically to a high-efficiency and environmentally friendly automatic sediment and water sample filtration cabinet. It includes a cabinet body and multiple filtration devices. Two doors are rotatably connected to the surface of the cabinet body. Multiple water sample bottles are inserted inside the cabinet body. The multiple filtration devices are located inside the cabinet body, each filtration device including a support plate fixedly connected to the inside of the cabinet body. The water sample bottles are inserted inside the support plate. A connecting plate is inserted inside the cabinet body, and multiple filter papers are inserted inside the connecting plate, positioned directly below the water sample bottles. A fixing plate is fixedly connected inside the cabinet body. Through the parallel design of multiple water sample bottles, multiple filter papers, and multiple containers, dozens or even hundreds of water samples can be filtered simultaneously, thereby improving processing efficiency. The high-frequency micro-vibration generated by the vibration motor is transmitted to the filter paper through the connecting plate, which can disperse the sediment particles accumulated on the filter paper in real time, reducing sediment adsorption and clogging of the filter paper pores.

The invention discloses a river suspended sediment concentration measurement method and equipment, and the method comprises the steps: taking a region non-local diffusion equation based on a near-field dynamics differential operator as a core to carry out profile inversion, and carrying out the measurement of the suspended sediment concentration through a predefined weight function and a finite interaction domain; bridging is achieved between a local Rouse model and a global fractional order model, and the physical constraint that sediment particles cannot be instantly sent to the free water surface in a near-bed turbulence event is met, so that the full-water-depth suspended sediment concentration is reconstructed through a small number of actual measurement points. The river suspended sediment concentration measuring method provided by the invention better conforms to the actual distribution condition of suspended sediment in a natural river, the obtained result is more accurate, and further scientific guidance can be provided for engineering sediment measurement.

The invention relates to the technical field of sediment detection equipment, in particular to sediment thickness detection equipment for foundation construction, which comprises a moving device, a regulation and control device arranged in the moving device, a lowering device arranged at the top of the moving device and a detection probe arranged on the outer side of the lowering device, the moving device comprises a fixed frame body, rotating wheels arranged at the corners of the outer side wall of the fixed frame body and two sets of downward pressing parts arranged in the fixed frame body. The position, making contact with the top face of the pull-down frame, of the cam continuously changes in the rotating process of the rotating shaft, then the traction rope is discontinuously pulled down through the pull-down pulley, manual work is simulated, the detection probe discontinuously moves upwards in the downward moving process, certain disturbance is generated when the detection probe is lowered, and the detection accuracy is improved. Therefore, the probe is prevented from being blocked by sediment particles, and the probe is ensured to be more accurately lowered to the top surface of the sediment layer while the jamming phenomenon is prevented.

The application discloses a suspended sediment transport and reservoir dredging system, and relates to the technical field of hydraulic engineering.The system comprises an acoustic control array module, a sediment collection module and a control unit.The acoustic control array module is used for forming an acoustic potential well in water above a reservoir bottom silt layer to capture a sediment particle group in the reservoir bottom silt layer; the sediment collection module is used for collecting the sediment particle group to gather at a sediment collection target point to form a slurry; and the control unit is used for generating an acoustic potential well moving path based on position information of the acoustic control array module, a reservoir bottom topography and the sediment collection target point, and for controlling emission parameters of the acoustic control array module based on a motion state of the acoustic potential well and the sediment particle group and a concentration of the sediment particle group.The application can realize non-contact, directional and cooperative transport of the sediment particle group, orderly guide the sediment particle group to a collection point, and realize low-energy-consumption, low-disturbance, high-efficiency and intelligent dredging operation.

The application provides a kind of based on scanning electron microscope image deep-sea sediment particle three-dimensional structure reconstruction method: obtain the scanning electron microscope image of deep-sea sediment particle and carry out gray scale, filtering and contrast enhancement;Based on automatic threshold segmentation and connected domain analysis lock target particle area, and synchronous cutting gray scale and binary image;To target particle binary mask is maximum connected domain reservation, hole filling and size standardization processing;Gray value is mapped to relative height and shield background area, generate only cover target particle height field;Based on the height field generates multi-view three-dimensional graph, color height distribution graph, center profile, error band, local refinement reconstruction graph and height classification graph.Through the technical scheme of the application, the efficiency and stability of particle morphology contrast analysis can be improved without changing the existing scanning electron microscope hardware, realizing the automatic extraction, background shielding, three-dimensional morphology reconstruction and quantitative expression of deep-sea sediment particles in a single SEM image.

This utility model relates to the technical field of water sampling devices, specifically a water sampling and collection device, including a suction pipe, a blocking section, a sedimentation pipe, and a filter pipe. The blocking section is located at the bottom of the suction pipe and is used to intercept and clean suspended matter at the bottom of the suction pipe. The sedimentation pipe is fixedly located at the top of the suction pipe and is used to settle particulate impurities in the sampled water. The filter pipe is fixedly located at the top of the sedimentation pipe and is used to filter particulate impurities in the sampled water. This utility model uses a blocking net at the bottom of the suction pipe to block suspended matter such as algae from entering the suction pipe, and a rotating cleaning brush removes debris from the surface of the blocking net. The spiral upward sedimentation pipe reduces the flow rate of the sampled water, causing the sediment particles to settle. The filter element filters out suspended particles such as bacteria and rust, as well as some colloids. The multi-stage filtration structure works together to not only intercept sediment particles in the sampled water but also filter out smaller suspended particles, improving the quality of the collected water sample.

The invention discloses an offshore marine ranching area sediment sampling instrument, and relates to the technical field of marine ranching sampling, the offshore marine ranching area sediment sampling instrument comprises a mounting floating plate floating in an offshore area, the upper surface of the mounting floating plate is fixedly connected with a winding assembly, and a steel rope is wound on the winding assembly; the lower end of the steel rope is fixedly connected with a collecting box for collecting, and the lower surface of the collecting box is fixedly connected with a fixing plate. According to the offshore marine ranching area sediment sampling instrument, after a collection box is in contact with sediments, a waterproof motor drives a gear to rotate, so that a stirring plate rotates together, the sediments below the collection box are fully stirred, and in the stirring process, the inflow and outflow amount of seawater in the collection box can be adjusted by controlling opening and closing of an electromagnetic valve in a water inlet assembly; the electromagnetic valve is opened at the initial stage of stirring, so that part of seawater carries the stirred sediment particles to enter the collection box, and the electromagnetic valve is closed after the sediment particles are preliminarily precipitated, so that the collection efficiency and the purity of a collected sample are improved.

The invention discloses a device and method for detecting particle size distribution of particles in an offshore oil-containing water body, the device comprises a light source, a microscopic imaging device, a control module and an image processing module, and the light source comprises a white light source and an ultraviolet light source; the control module is configured to control the white light source to emit light, and the microscopic imaging device obtains a microscopic image; controlling the ultraviolet light source to emit light, and acquiring a fluorescence image by the microscopic imaging device; the image processing module is used for receiving the microscopic image and the fluorescence image and matching the microscopic image with the fluorescence image to obtain a corresponding relationship between the particulate matters in the microscopic image and the fluorescence image; removing particulate matters in the fluorescence image from the particulate matters in the microscopic image to obtain a real particulate matter image; and obtaining particle size information of the particles according to the real particle image. Petroleum molecules can be excited to fluorescence under the irradiation of specific light intensity, and other sediment particles do not have fluorescence reaction, so that the distribution state of the oil molecules is obtained through fluorescence and is deducted as a background, and accurate particle size distribution information of the particles can be obtained.

The invention discloses slurry pouring equipment for reservoir danger removal and reinforcement construction, which comprises a single stirring barrel and a double stirring barrel, and is characterized in that the single stirring barrel is provided with a first power mechanism, a feed port positioned at the top, an output pipe positioned at the bottom of the side surface and a first rotating shaft driven by the first power mechanism; and a mixing structure is mounted on the surface of the first rotating shaft. According to the invention, the single stirring barrel and the double stirring barrels are combined together through a combined design, so that the single stirring barrel can continuously perform stirring operation, and the double stirring barrels can store and mix slurry output by the single stirring barrel at any time and can also produce slurry by themselves; the formed integral combined structure not only can complete multiple mixing operations and adding additives in the midway, but also can form recovery of precipitated particles, so that the output quality of the slurry is improved and the waste of the slurry is reduced while the mixing efficiency is improved.

GPU parallel acceleration based on sediment particle tracking, tracing method and equipment, belong to the field of ocean hydrodynamic simulation and Lagrangian particle tracking, in order to overcome the problem that the prior art is difficult to accurately simulate the motion trajectory of sediment in complex water flow, wave, tide and other multi-element dynamic field, the particle is arranged in the calculation domain of two-dimensional hydrodynamic mathematical model, the input information of arranging the particle, including the position coordinates of the particle, the state of the particle in the next time step is judged according to the probability of deposition and siltation, the state includes the starting state and the deposition state, the state of the particle in the next time step is judged according to the starting probability, the state includes the starting state and the deposition state, the present application is fast and accurate analysis of the source and transport path of sediment, which provides solid guarantee for scientific management of sediment accumulation and sustainable development of coastal zone.

The present application relates to the technical field of geological disaster prediction, in particular to a seabed liquefaction prediction system based on neural network, which comprises a parameter change extraction module, a response model training module, a disturbance feature division module, a liquefaction probability statistics module and a risk prediction output module.In the present application, the change rates of sediment particle density and effective stress in different depth intervals are extracted layer by layer to build a longitudinal response relationship, which can capture the continuous change characteristics of the sediment layer with the increase of depth, and the response differences under different time sequence disturbance conditions are compared in depth by means of residual neural network, so that the coupling relationship between disturbance information and sediment structure can be dynamically described, and the phased change of disturbance behavior can be effectively corresponded.The liquefaction probability of each depth interval is calculated by combining the disturbance feature and the response model, and the interval risk groups are formed under different time periods, and then the risk amplitude change trend and the jump boundary between disturbance stages are compared.

The invention provides a slope sediment starting flow velocity and bed load sediment transport rate prediction method and a model building method, and belongs to the technical field of hydraulics and river dynamics in natural science research. The method comprises the following steps: firstly, determining an acting force of sediment on a slope and an expression of the acting force, establishing a stress balance equation of sediment particles in a critical state, and introducing the force expression to obtain a slope sediment starting velocity initial expression; replacing the near-bottom flow velocity in the sediment starting critical flow velocity formula with the vertical line average flow velocity to obtain a slope sediment starting flow velocity prediction formula; parameters are determined according to an open channel sediment critical initial movement flow velocity measurement experiment, fixed parameters of a prediction formula are obtained, and meanwhile, a bed load sediment transport rate expression is established for prediction. According to the method, a sediment starting flow velocity formula which has simple and easily-obtained parameters and is suitable for a slope, a gentle slope and a flat bed is established, the model also comprises the prediction of the sediment transport rate, and the result also has relatively high reliability.

The invention relates to a single silt particle impact test device and a use method thereof, and belongs to the field of silt particle impact dynamics research in the field of hydraulic machinery. The device comprises a power control system, an air gun launching system, a high-speed photographing system and a universal adjusting system, wide-range regulation and control of the particle impact speed are achieved through the power control system, the particle size and trajectory are precisely regulated and controlled through the air gun launching system, the high-speed photographing system captures the particle motion trail and the surface deformation recovery process of a test piece, and precise simulation of particle multi-angle impact is completed through the universal adjusting system. The device can realize the wide range of speed (10-100 m / s), the wide range of particle size (1-5 mm) and the wide range of impact angle (5-90 degrees), and can effectively reproduce the impact damage behavior of multi-scale sediment particles on the wall surface of the device under the working condition of hydraulic machinery. The device can efficiently carry out a single sediment particle impact test, is accurate in regulation and control, is wide in applicability, and has an important application value for related research of hydraulic machinery sediment impact.

The application discloses a double-layer structure ground sound detection and sediment classification method based on multi-sound feature fusion, which is suitable for HF-SSBP profile detection, fusion of multi-dimensional sound features and double-layer structure ground sound detection and sediment classification, fully excavates sound echo information of the HF-SSBP, extracts multi-dimensional acoustic features such as reflection coefficient, layer structure, first wave waveform, positive and negative reflection matrix, sub-band reflection coefficient and sub-band positive and negative reflection matrix, constructs a multi-sound feature joint ground sound model dominated by sediment granularity and assisted by density and porosity based on the Folk triangle classification method, adopts contribution degree fusion and regularization regression to inhibit collinearity and overfitting, and improves environmental applicability through laboratory calibration and field correction, so that effective classification of bottom sediments is realized, and the stability, layered resolution capability and classification precision of seabed sediment identification are significantly improved, and the engineering applicability of the model in a complex field environment is enhanced.

The application relates to a sediment particle dynamic detection method and a detection system, and relates to the technical field of river sediment detection technology. The method comprises the following steps: S1, obtaining a high-pressure sediment sample, performing metering, and then performing pressure reduction treatment to form a to-be-detected sample; S2, screening the to-be-detected sample according to particle size to form a first sample and a second sample; S3, performing turbidity detection and dilution on the sample by using a transmission-scattering ratio method; S4, irradiating the first sample with multi-wavelength combined shaping light, and obtaining particle morphology and component information based on parameter analysis; S5, performing imaging detection on the second sample, obtaining a polarization image and a spectral image, and fusing and analyzing the polarization image and the spectral image to obtain particle morphology and component information; and S6, integrating detection data, identifying and classifying through a machine learning model, and outputting a detection result. Through the steps of high-pressure sampling, pressure reduction, particle size screening, turbidity detection and dilution, double-channel detection and data integration, the labor intensity is reduced, and the detection efficiency is improved.

The invention discloses a construction method of a hydrate-containing sediment model and a program product. The method comprises the following steps: acquiring a sediment sample, determining the grain composition of the sediment sample, and establishing a rigid wall body playing a role in constraining a boundary; generating a plurality of sediment particles in the rigid wall body through a fixed random number according to the particle gradation of the sediment sample, so as to obtain a first sediment model with the porosity as a target porosity; determining an occurrence form corresponding to the hydrate particles, and generating the hydrate particles in pore spaces of the sediment particles in the first sediment model according to the occurrence form to obtain a second sediment model; updating the rigid wall body of the second sediment model into a membrane boundary composed of a plurality of membrane particles to obtain a third sediment model, and updating the third sediment model according to a preset contact model to obtain a target sediment model. Therefore, the accuracy, authenticity and operability of target sediment simulation are improved.

To provide a method for spraying, a method for removing water-containing sediment using the spraying method, and a spraying apparatus, the method allowing a granular treatment agent to be sprayed accurately onto a target site in such a manner that the agent becomes embedded in soft sediment.SOLUTION: The spraying method of the present invention sprays a granular treatment agent, in which the granular treatment agent is introduced into an air stream generated by compressed air and is sprayed by ejecting the granular treatment agent together with the air stream. The spraying method sprays the granular treatment agent so that it becomes embedded in soft sediment B located ahead of the ejection direction of the air stream. The present invention further provides a method for removing water-containing sediment using the spraying method, in which the soft sediment B is water-containing sediment and the granular treatment agent is a fluidizer that fluidizes the water-containing sediment.SELECTED DRAWING: Figure 1

The invention discloses a multi-parameter online measurement method for overflowing water sediment particles. The method comprises the following steps: sampling the overflowing water sediment particles at a constant speed from different depths in a pressure pipeline, mixing, diluting and introducing into a measurement channel; the parallel line polarized light irradiates sediment particles of the sediment turbid liquid in the measurement channel, and a polarization holographic image is formed on the target surface of the polarization camera; processing the polarized holographic image by using a pixel extraction algorithm and an image interpolation algorithm to obtain sub-holographic images; reconstructing by using a holographic reconstruction algorithm; calculating polarization parameters and phase distribution of the sediment particles from a reconstruction result, and analyzing to obtain the particle size and the concentration of the sediment particles to finish measurement. The invention also discloses a multi-parameter on-line measuring device for the flowing water sediment particles by adopting the method. The multi-parameter on-line measuring device comprises a constant-speed sampling and diluting system, a polarization holographic measuring system, a measuring flow channel and a data processing system. The method and the device provided by the invention can realize multi-parameter online measurement of the sediment particles in the water body.

The invention discloses a sediment flow hydrological intelligent real-time monitoring device, and relates to the technical field of sediment flow monitoring, the sediment flow hydrological intelligent real-time monitoring device comprises a fixing frame, the lower surface of the fixing frame is fixedly connected with a monitoring main shell and a side shell, and the inner bottom wall of one side of the monitoring main shell is fixedly provided with a flow sensor; the output end of the first motor is fixedly connected with a cleaning and scraping mechanism, the first filter plate and the second filter plate are rotationally cleaned and scraped in the rotating process of the rotating roller, the outer surface of the center of the rotating roller is in transmission connection with a sand dredging mechanism, and sand entering the centrifugal cylinder is dredged through reciprocating of a sand dredging rod; a centrifugal rotating mechanism is fixedly installed in the lower shell, separated sediment particles are conveyed into the inner shell through centrifugal force in the rotating process, and the weight of sediment is monitored in real time through a weighing sensor in the inner shell. And the stability of long-term real-time monitoring of the sediment flow is improved.

The invention discloses a special-shaped drilling fluid circulation tank and a sediment cleaning method.The special-shaped drilling fluid circulation tank comprises a circulation tank body, and the side portion of the circulation tank body is sunken inwards to form a tank body special-shaped area; the jet flow assembly extends into the tank body special-shaped area and is used for blowing particles deposited on the top of the tank body special-shaped area; and the stirring assembly is arranged in the circulating tank body and used for stirring the drilling fluid in the circulating tank body to avoid particle accumulation. According to the special-shaped drilling fluid circulation tank, through the mutual cooperation effect of the stirring assembly and the jet flow assembly, deposition of particles in the special-shaped tank body is effectively avoided, and the stability and uniformity of drilling fluid in the tank body are guaranteed.

The invention discloses a sediment particle tracking and tracing method and device based on GPU parallel acceleration, belongs to the field of ocean hydrodynamic simulation and Lagrange particle tracking, and aims at solving the problem that in the prior art, it is difficult to accurately simulate the motion trail of sediment in complex water flow, wave, tide and other multi-element dynamic fields. The input information of the particles is arranged, the input information comprises the position coordinates of the particles, the states of the particles in the next time step are judged according to the silt falling probability, and the states comprise the starting state and the silt falling state; according to the starting probability, the state of the particles in the next time step is judged, and the states comprise the starting state and the deposition state, the sediment source and the transportation path are rapidly and accurately analyzed, and a solid guarantee is provided for scientific treatment of sediment deposition and sustainable development of a coastal zone.