22 results about "Aeolian sand" patented technology

The application discloses a fly ash-based sand-fixing system, a sand-fixing method and application. The sand-fixing system comprises fly ash-based sand-fixing particles, a fly ash-based sand-fixing plate device and a fly ash-based sand-fixing agent; the fly ash-based sand-fixing particles are laid on a sand surface layer and used for slowing down wind speed and intercepting floating sand; the fly ash-based sand-fixing plate device comprises a plate body and a fixing member, the plate body is perpendicular to a main wind direction, and the fixing member is used for achieving detachable splicing of adjacent plate bodies, so as to form a three-dimensional grid protection structure and block wind sand migration; and the fly ash-based sand-fixing agent is applied to the sand surface layer to form a consolidated layer and consolidate the surface sand body. The fly ash-based sand-fixing particles, the fly ash-based sand-fixing plate device and the fly ash-based sand-fixing agent are cooperated to form an initial stable layer, a physical barrier and a consolidated layer, and the sand-fixing system has the advantages of high strength, environmental protection, long-term effect and economy and is suitable for rapid treatment of desertification land.

This invention discloses a solar-powered long-distance, low-energy-consumption transportation method for desert sand. The method first uses ArcGIS software to acquire topographic and environmental data of the transportation area between the aeolian sand collection location and the mining area. This data is then further extracted and processed to form path feature parameters, including slope, elevation change, surface undulation, transportation distance, and unit energy consumption. Next, a minimum energy consumption route optimization model is established based on these path feature parameters. Candidate transportation routes are comprehensively evaluated for energy consumption, and the lowest-energy-consumption transportation route is selected. Further optimization is performed based on the segmented energy consumption requirements, path length, and slope change of the lowest-energy-consumption transportation route. Based on the distribution of nodes, the layout scheme of the transmission line and solar power supply functional units is determined, and the transmission line and power supply functional units are arranged along the route. The solar power supply functional units include solar power generation units, solar energy storage units, power conversion units, and power supply control units. Simultaneously, based on the high-load sections, slope-changing sections, turning sections, or fault-prone sections of the lowest energy consumption transportation route, a monitoring point layout scheme is determined, and monitoring and control terminals and sensors are set up to monitor the operating status of the transmission equipment in real time, promptly identify wear, deviation, and other fault risks, and provide early warnings and adjustments. This method achieves low-energy consumption optimization for long-distance desert sand transportation routes, as well as energy supply configuration, intelligent monitoring, and feedback control during the transportation process, solving the problems of difficult energy supply, high energy consumption, and insufficient equipment reliability in existing desert sand transportation processes.

The application belongs to the technical field of road engineering and foundation treatment, and provides a wind-sand composite roadbed resource intelligent grouting construction method and equipment, which comprises the following steps: after the foundation is leveled, wind-sand is used as the main filler to carry out layered paving and compaction of embankment and lower roadbed; grouting point positions are laid out on the lower roadbed layer; high-performance slurry is used to carry out pressure grouting, and based on the real-time collection results of the compaction degree, the penetration pressure-depth curve, the grouting flow, the lifting speed and the grouting amount per unit depth, the opening and closing of the grouting valve, the grouting pressure and the lifting speed are interlocked controlled or adaptively adjusted to form a continuous and uniform cement column reinforced body; the column top is controlled to be higher than the top surface of the lower roadbed to form a protruding section and is maintained until the preset strength is reached; then, geogrid is laid to make the column top protruding section penetrate and embed in the grid mesh, and the upper roadbed and the pavement structure are continuously constructed; the application takes into account the resource utilization of wind-sand, the collaborative utilization of industrial solid waste and the intelligent control in the construction process.

The application discloses a wind-sand environment simulation experiment table and application thereof, and relates to the technical field of wind-sand environment simulation experiments, and comprises a box body, the box body is provided with a transparent cover, the transparent cover covers half of the shell of the box body, sand filter screens are screw-connected to the front end and the rear end of the box body, and circular sand filter screens are fixedly connected to the middle portions of the sand filter screens. The wind-sand environment simulation experiment table and application thereof automatically guide the sand in the sand tank to the small magnetic valve pipe and the large magnetic valve pipe, ensure that the wind-sand assembly can continuously output the sand from the magnetic valve pipe structure under the condition of sand, and avoid the interruption phenomenon, so that the sand can be finally completely drained from the sand tank, sand particle residues are avoided, the problem of manually cleaning the sand particles in the sand tank is avoided, and the accurate statistics and collection of the total amount of sand changes in the wind-sand environment simulation experiment are facilitated.

This invention proposes a dynamic feedback optimization method and system for jet grouting support parameters in aeolian sand tunnels, relating to the fields of tunnel engineering and underground structure reinforcement technology. Based on drilling and geophysical data, a three-dimensional a priori constraint model of the aeolian sand strata is established. The section to be reinforced is divided into several construction units, and optical fibers are deployed to construct a three-dimensional optical fiber monitoring grid. Based on the construction units, jet grouting operations are initiated, using perceptible jet grout for grouting. Multi-source monitoring data and equipment parameters are collected simultaneously during the construction process, and grout characteristics are extracted by combining the optical fiber signals from the three-dimensional monitoring grid. Based on these characteristics and the aforementioned a priori constraint model, a three-dimensional pile formation effect field is reconstructed using an inversion algorithm. The inversion results are spatially compared with the design objectives, and parameters are back-calculated for insufficient areas. Model predictive control or multi-objective optimization algorithms are used to adaptively adjust the grouting parameters. This achieves visualization of the jet grouting reinforcement process, precise control, and intelligent quality control.

The present application relates to the technical field of ecological monitoring, in particular to a mobile ecological damage intelligent monitoring device for nature reserves, comprising a vehicle body and a collection box, a collection pipe and a collection cover are sequentially installed on the top of the collection box in communication, the collection cover is used for capturing sand and soil particles in wind sand and conveying them to the collection mechanism in the collection box through the collection pipe, sand and soil particles are captured by the collection cover, then conveyed to the inside of the collection box through the collection pipe, and stored through the sample storage tube in the collection mechanism, as the number of sand and soil particles collected in the sample storage tube increases, the sample storage tube will rotate as a whole under the action of gravity in cooperation with the driving mechanism, further storing the collected sand and soil particles in different sample storage tubes, realizing the collection and independent storage of sand and soil particles at different time periods in the wind erosion process.

The present application relates to a railway wind-sand protection system, which is used between the windward side of railway and the leeward side of sand dune, and comprises a sand-sealing and grass-growing belt, a mixed sand-fixing belt, a sand-blocking belt, a water diversion channel and a sand flushing channel. The sand-sealing and grass-growing belt, the mixed sand-fixing belt and the sand-blocking belt are arranged in the first direction in sequence, the sand-sealing and grass-growing belt is located on the side of the mixed sand-fixing belt close to the railway, and the sand-blocking belt is located on the side of the mixed sand-fixing belt close to the sand dune. The water diversion channel and the sand flushing channel are arranged on one side of the sand-blocking belt in the second direction. The water diversion channel is provided with a first outlet and a second outlet, the first outlet is used for guiding water to the sand-blocking belt, and the second outlet is communicated with the sand flushing channel. The present application can improve the sand-blocking and sand-fixing effect and provide a good operating environment for the railway.

The application provides a flow sand area photovoltaic power plant wind-sand prevention system and application thereof. The system comprises a filling type surrounding net sand prevention barrier and a filling type surrounding net sand fixation barrier arranged at the periphery of the photovoltaic power plant, and a through vehicle type sand prevention barrier and a through vehicle type sand fixation barrier arranged in an inter-board corridor at the inner edge of the photovoltaic power plant. The filling type surrounding net sand prevention barrier and the filling type surrounding net sand fixation barrier are used to prevent and fix sand, and most of the sand sources in the windward direction are intercepted and fixed outside the field area. The through vehicle type sand prevention barrier and the through vehicle type sand fixation barrier are used to prevent and fix sand in the inner edge zone of the photovoltaic panel array area, so that a small amount of flowing sand passing through the peripheral protection measures is fixed. The system protection concept is adopted, and the system protection of the body+periphery is formed. The peripheral sand sources are cut off, the wind-sand problem of the whole photovoltaic field area in the flowing sand area is effectively solved, and the convenience of maintenance is considered. No additional operation and maintenance channel needs to be reserved.

The present application belongs to the technical field of erosion wear test, in order to solve the problem that it is difficult to switch or superimpose various medium erosion conditions in the same device, a fan blade material erosion test device and method based on annular jet disc are provided, which comprises a container cabinet, a disc jet unit, a sample rotating motion unit and a bottom circulating water tank unit; the annular jet disc is provided with a medium flow channel extending in the circumferential direction; the nozzles located in the corresponding area of the liquid disc pipeline constitute a water jetting area for rain erosion; the nozzles located in the corresponding area of the sand disc pipeline constitute a sand jetting area for wind-sand or gas-solid mixed erosion; the sample rotates around its own axis under the drive of the rotating table assembly to simulate the tangential motion state of the fan blade in the actual operation process. The device can stably simulate the rain erosion, wind-sand erosion and their combined effect of the fan blade.

The utility model discloses an ecological vegetation recovery is with wind -proof sand fixation device, including support frame, sand fixation net and planting container, the planting container is hung in the square unit of support frame, fills water -retaining matrix and plant seed in the planting container, the bottom of support frame is equipped with anchor structure, is used for fixing support frame in the sandy land, still including deflector, and the deflector is obliquely installed on the top windward surface of support frame, the utility model discloses compared with prior art advantage lies in: grid -like support frame cooperation sand fixation net, effectively blocks the sand particle flow, the deflector of top windward surface oblique installation, can reduce the wind speed and guide the direction of wind, reduce aeolian sand erosion, fill the water -retaining matrix of water -absorbing resin, humus and sand according to the specific proportion mixture in the planting container, collocation local drought -resistant shrub or herbaceous plant seed, bottom is equipped with water -permeable hole and guarantees the reasonable infiltration of moisture content, provides good environment for the growth of plant, promotes the sandy land vegetation recovery, forms stable ecological system.

The application discloses a kind of active sand barrier wind-sand protection system, its construction method and wind-sand protection method.The active sand barrier wind-sand protection system includes first active sand barrier unit, second active sand barrier unit and third active sand barrier unit sequentially arranged along the main wind direction, the first active sand barrier unit includes multiple concentric wave-shaped active sand barriers sequentially arranged along the direction perpendicular to the main wind direction, the second active sand barrier unit includes multiple groups of concentric wave-shaped active sand barriers arranged in dot-matrix on the ground, each group of concentric wave-shaped active sand barriers includes three concentric wave-shaped active sand barriers arranged in pin shape on the ground, and the third active sand barrier unit includes multiple square active sand barriers, multiple square active sand barriers are connected to each other and arranged in mesh on the ground.The active sand barrier wind-sand protection system provided by the application has a three-dimensional wind-blocking and sand-storing structure, and can maintain and expand the original sand barrier pattern to the surrounding, effectively reducing the cost of sand control and improving the effect of sand control.

The application relates to a wind sand improvement technology, and discloses a wind sand improvement method and a wind sand improvement system, which comprises the following steps: inputting wind sand raw materials into a multi-stage crushing device for grading crushing treatment; wherein the multi-stage crushing device at least comprises a primary crushing unit and a secondary grinding unit; the wind sand is subjected to impact crushing through the primary crushing unit, so that the particles with a particle size greater than A are crushed to below A; wherein A is 2-2.5 mm; the primary crushing product is conveyed to the secondary grinding unit for grinding, so that the particles with a particle size greater than B are crushed to below B, and B is smaller than A; the particle size distribution is monitored in real time during the grinding process, and when the sum of the powder particles with a particle size C-B and the clay particles with a particle size less than C accounts for more than 20% of the total weight, the grinding treatment is stopped; wherein C is smaller than B; the target value is greater than 20%; and the wind sand improvement product is obtained as a target soil material. The application aims to realize wind sand improvement at low cost and high efficiency.

The application discloses a signal receiving device for wireless communication and relates to the technical field of communication devices. The surface of the shell of the device is usually provided with corresponding heat dissipation grooves; when wind-sand weather occurs outdoors, sand and stone particles in the air can easily enter the device, causing damage to the device; meanwhile, condensed water drops during heat dissipation can easily accumulate in the interior of the shell, affecting the operation of the device. The outer baffle and the inclined guide plate are matched to increase the tortuosity of the path of air outflow, and meanwhile, the entry of sand and stone particles into the interior of the shell through the air grooves due to large wind-sand outdoors is avoided, so that the damage of internal parts of the device is avoided; meanwhile, the inclined guide plate is matched with the foam ring pad, a gap is formed between the shell and the outer cover plate by the foam ring pad, the buffering effect is increased by the buffering effect of the foam ring pad, the water drops condensed on the surface of the inclined guide plate can be guided to the gap by the inclined guide plate, and the water drops are prevented from flowing in the interior of the shell, so that the internal device is prevented from being damp.

This invention discloses a method and apparatus for evaluating the skid resistance performance of asphalt pavement under aeolian sand conditions. The method involves acquiring environmental data and a three-dimensional texture point cloud of the target asphalt pavement area under aeolian sand conditions; extracting macroscopic and microscopic texture features from the three-dimensional texture point cloud to obtain target texture feature data; and inputting the environmental data and target texture feature data into a pre-trained target skid resistance performance evaluation model to output the skid resistance performance evaluation result corresponding to the target asphalt pavement area. This invention analyzes the nonlinear influence of pavement texture-related features on skid resistance performance, which has a stronger representational ability than the features used in existing methods. Furthermore, the use of a target skid resistance performance evaluation model overcomes the problem of existing methods lacking data-driven machine learning models, thus improving the efficiency and accuracy of pavement skid resistance performance evaluation.

The application discloses a phase-shifting transformer with sand protection function and relates to the field of transformers.The phase-shifting transformer comprises a transformer main body provided with a heat dissipation fan, a bearing frame installed on the transformer main body, a filter assembly corresponding to the heat dissipation fan installed on the bearing frame, and a sand protection structure arranged in the bearing frame and axially sliding along the filter assembly under the driving of a driving device.The sliding frame drives a plurality of blocking assemblies to rotate in the moving process, so that the blocking assemblies close the inner rotating frame and abut on the filter assembly, supporting force is provided for the filter assembly, the filter assembly is prevented from being damaged under the action of the sand, the filter assembly is blocked, the sand is prevented from entering the transformer and affecting the normal work of the transformer, the transformer is prevented from being subjected to faults such as electric leakage and current flow, and the safety and service life of the transformer are further improved.

This application discloses a ventilation structure and energy storage system, relating to the field of energy storage equipment technology. It includes a housing and a first filter assembly. The housing has an air inlet and an air outlet. The air inlet is located on one side of the housing along a first direction, and the air outlet is located on one side of the housing along a second direction, where the first and second directions intersect. The housing includes a first sidewall opposite to the air inlet in the first direction, which guides airflow to a first area of ​​the air outlet. The first filter assembly is disposed within the housing and includes a guide plate that guides airflow to a second area of ​​the air outlet, at least a portion of which is located outside the first area. With this configuration, the first filter assembly can filter and protect against external rainwater or sand infiltration. The guide plate directs the airflow, ensuring uniform wind load at the air outlet and forming a stable wind direction barrier, thereby improving waterproofing and sandproofing capabilities.

The utility model discloses a sand barrier structure for mobile sand land management relates to sand barrier technical field, including sand layer, the sand layer is laid with cover layer on sand blocking layer, and the cover layer is laid with pressure cover layer on sand blocking layer, a plurality of support columns, a plurality of support columns are arranged at intervals, and the bottom end of every support column is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface layer and is inserted into sand surface

The application relates to a curved wind and sand prevention shutter. The shutter comprises a window frame, a shutter plate arranged at one end of the inner side of the window frame, a wind and sand prevention mechanism arranged at the other end of the inner side of the window frame and located at the back side of the shutter plate, a first frame and a screen net. The outer wall of the first frame is attached to the inner wall of the window frame, the screen net is arranged on the inner side of the first frame, a water overflow plate is arranged at the top of the side of the first frame facing the shutter plate, the water overflow plate extends along the width direction of the first frame, a water inlet pipe is arranged between the water overflow plate and the first frame, and the water inlet pipe is used for conveying water in the water overflow plate. The application can efficiently prevent wind and sand while reducing the influence on the ventilation efficiency.

The present application relates to the technical field of building materials, in particular to a method for preparing an impermeable cushion layer from solidified aeolian sand, comprising the following steps: S1, batching: 55-65 parts of aeolian sand, 30-40 parts of construction waste and 5-10 parts of Portland cement are weighed as raw materials; S2, mixing: the raw materials are stirred uniformly, and then a thickening agent, an expanding agent, additional water, a water reducing agent and an impermeable agent are added in sequence, and the mixture is stirred again to obtain a mixed material; S3, forming: the mixed material is pressed into a solidified aeolian sand, and then cured for 26-30 days to obtain the impermeable cushion layer. The aeolian sand and the construction waste are used together, the aeolian sand can effectively prevent frost heaving, the construction waste can promote the cementation of the components and improve the impermeability of the impermeable cushion layer, and the aeolian sand and the construction waste are both existing materials in desert areas, which can effectively reduce transportation costs.

This invention discloses an environmental monitoring device for measuring windblown sand content, belonging to the technical field of environmental monitoring equipment. It includes a sand collection component comprising a top plate with several baffles connected to its bottom surface. These baffles are arranged in a circular array around the central axis of the top plate, forming a V-shaped sand collection channel between adjacent baffles. The front end of the V-shaped sand collection channel forms a sand inlet, and the bottom end forms a sand outlet. A sand collecting hopper has an upper interface at the top and a lower sand outlet at the bottom, with the upper interface connecting to the sand outlet. The lower part is circular. A measuring cup includes a cup body with a sealed bottom and an open top, the cup body fitting over the lower sand outlet through the open top, and a drain outlet at the bottom of the cup body. This invention overcomes the shortcomings of existing technologies, such as inaccurate weighing due to sand sample moisture content, low efficiency of natural air drying, poor adaptability to the field, and data distortion.

The application provides sintered aeolian sand ceramic sand and a preparation method thereof. The sintered aeolian sand ceramic sand of the application uses aluminum slag as aluminum material and steel slag powder as a fluxing component to prepare sintered ceramic sand, and turns industrial waste into treasure. The application uses aeolian sand powder as silicon material to prepare sintered aeolian sand ceramic sand with a large amount of aeolian sand powder, which plays a positive role in the sustainable development of mineral resources and the resource utilization of aeolian sand. The sintered aeolian sand ceramic sand prepared by the application has a bulk density less than 1200kg / m 3 , a cylinder compressive strength more than 22MPa, a 1h water absorption less than 10%, and belongs to high-strength light aggregate. The product has excellent performance by reasonably controlling the formula ratio.