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54 results about "Waste dump" patented technology

A landfill site (also known as a tip, dump, rubbish dump, garbage dump or dumping ground and historically as a midden) is a site for the disposal of waste materials by burial. Landfill is the oldest form of waste treatment, although the burial of the waste is modern; historically, refuse was simply left in piles or thrown into pits.

Image recognition-based wasteyard mosquito suppression system for precisely throwing probiotics

The invention relates to the technical field of disease and pest control, in particular to an image recognition-based garbage dump mosquito suppression system for precisely throwing probiotics, which comprises an image acquisition and sensing module for acquiring image data, environmental parameters, mosquito characteristic data and garbage decomposition state data; the mosquito feature analysis center extracts mosquito species, density and gathering area features, and constructs a mosquito breeding risk assessment model in combination with environmental parameters; the breeding risk assessment module fuses landform, garbage distribution and mosquito activity data, assesses a mosquito breeding risk level and a key breeding area, and generates a breeding risk probability cloud picture; the probiotic delivery decision-making unit simulates inhibition effects of different probiotic formulas and delivery strategies, generates a delivery scheme, and drives the ground robot to perform targeted delivery; the self-adaptive regulation and control module monitors mosquito density change and probiotic activity in real time, and dynamically adjusts a putting scheme through a swarm intelligence algorithm. Therefore, the problems of high pollution cost, poor accuracy and the like in the prior art are solved.
Owner:JIANGMEN FENGQIANGSHENG AGRICULTURAL TECHNOLOGY CO LTD

Waste dump heavy metal pollution risk assessment system based on artificial intelligence

The invention relates to a waste dump heavy metal pollution risk assessment system based on artificial intelligence. The system comprises a regional data acquisition module, a data primary processing module, a soil assessment model construction module, a water body assessment model construction module and a comprehensive pollution risk assessment module. According to the invention, original data is obtained through data acquisition; a data primary processing method of grid standardization, fracture network topology construction, feature engineering and enhancement and data set segmentation is adopted; an improved random forest model is adopted as a soil evaluation model, a feature weighting mechanism and diffusion simulation of a multi-physical process are introduced, and pollution rules under different paths are simulated by using a multi-path learning strategy; a mixed deep learning model is adopted as a water evaluation model, a hydrological topology network is constructed, a special response function is designed, and meanwhile, delayed release and long-term accumulation characteristics of pollutants are captured by using a space-time memory mechanism, so that the risk evaluation precision of the underground water level is improved.
Owner:GUIZHOU UNIV +1

Method for identifying strip mine area reference ecosystem based on normal distribution function

The invention discloses a method for identifying a strip mine area reference ecosystem based on a normal distribution function, and belongs to the technical field of ecological restoration. Dividing a degradation area around the open pit coal mine into a protection and restoration area, and dividing the dumping site into an ecological reconstruction area; defining different types of reference ecosystems for the two regions on the basis of considering the succession law of the ecosystems, the spatial position of the waste dump and the ecological restoration direction, and identifying target regions of the various types of reference ecosystems; calculating the ecological system quality of each pixel in the target area by integrating remote sensing calculation results of various ecological parameters; normal distribution function fitting is carried out on the ecosystem quality of all pixels in each target area; and extracting pixels of ecological system quality in each target area, and carrying out spatial aggregation to obtain a reference ecological system. The remote sensing technology is utilized, statistics, ecology and mining knowledge are combined, and a reference ecological system can be quickly and accurately established for ecological restoration engineering of the open pit coal mine.
Owner:CHINA UNIV OF MINING & TECH

A method for monitoring the slope strength change of a waste dump side slope

The application discloses a kind of for the slope strength variation monitoring method of waste dump side slope, it is related to slope strength variation monitoring field.The application is based on strength reduction method, combines three-dimensional data grid and monitoring data fusion, dynamically evaluates slope strength variation, and real-time identification side slope instability risk is carried out through intelligent early warning mechanism.The application is based on reinforcement strength reduction method, combines geological data, considers the nonlinear deformation characteristics of soil body, uses nonlinear constitutive model to dynamically describe the stress-strain relationship of soil body, and adjusts strength reduction coefficient in real time in monitoring process, improves the accuracy of side slope stability evaluation.
Owner:四川沿江宜金高速公路有限公司

Composite drainage plate with fast construction

The utility model belongs to the field of garbage field drainage, concretely relates to a composite drainage plate of quick construction, and the device includes: bottom plate, support part and filter part, the support part array sets up on the bottom plate, the support part is the structure of taper, the support part includes: male end, female end and connecting head, male end and female end are located two ends of bottom plate respectively, male end and female end are all hollow form structure, the connecting head is located in the middle of bottom plate, the filter part fixedly connected in the top of female end and connecting head, adjacent bottom plate is connected through male end and female end. The device cancels the reserved welding length of the edge of the original bottom plate, uses the support part which has as the connecting structure, provides a more quick and effective connecting mode, saves construction procedure and construction time.
Owner:SHANDONG ZHONGHAI XINKE ENVIRONMENTAL TECH CO LTD

Slope drainage structure of waste slag yard

The utility model relates to the field of waste slag field drainage, in particular to a waste slag field slope drainage structure which comprises a slope body, drainage ditches are arranged on the left side and the right side of the upper end of the slope body, installation grooves are formed in the drainage ditches, and vertical installation grooves are formed in the left end and the right end in each installation groove. A threaded rod is fixedly mounted at the position, located on the side of the mounting vertical groove, of the upper end of the drainage ditch, an intercepting and cleaning basket is arranged in the mounting groove, connecting vertical plates are fixedly mounted at the left end and the right end of the intercepting and cleaning basket correspondingly, fixing sleeve plates are fixedly mounted at the upper ends of the connecting vertical plates, and an ecological planting groove is formed in the upper end of the slope body; a flow guide edge I is fixedly mounted at the upper end of the slope body and positioned on the side of the ecological planting groove; by rotating the knob plate, the fixed lantern ring can be taken out conveniently, the connecting vertical plate and the interception cleaning basket can slide out conveniently, the convenience of dismounting and mounting structure operation is optimized, waste residues and sundries can be cleaned quickly and intensively, and the cleaning work efficiency of the waste residues and sundries in the drainage ditch can be improved.
Owner:SHAOGUAN WATER CONSERVANCY HYDRO POWER RECONNAISSANCE DESIGN INST

A drilling machine for hardware machining

PendingCN122274729Aquick dump handlingautomatic dumpingWaste dumpStructural engineering
This invention relates to the field of industrial processing technology and discloses a drilling machine for processing hardware parts. It includes a movable plate, a first electric telescopic rod fixedly connected to the left side of a fixed plate, a sliding rod fixedly connected to the bottom of a first fixed block, a pressing rod fixedly connected to the left side of the sliding rod, a transmission rod movably connected to the outside of the first fixed block, a telescopic spring fixedly connected inside a slide groove, a second electric telescopic rod fixedly connected inside a collection box, a pressure plate slidably connected inside the collection box, a buffer frame fixedly connected to the upper part of the pressure plate, and a buffer spring movably connected inside the buffer frame. During processing, the first electric telescopic rod drives the sliding block to move. Through the cooperation of the transmission rod and the fixed rod, and the telescopic spring, waste material in the collection box can be quickly dumped, thus achieving automatic waste dumping without manual labor and improving work efficiency.
Owner:SUZHOU TAIZHONGYI HARDWARE TECH CO LTD

A method for accelerating aerobic stabilization of a landfill

The application provides a method for accelerating aerobic stabilization of a landfill, and belongs to the technical field of landfill treatment, and comprises the following steps: arranging a leachate recharge well in a garbage layer and arranging two water injection pipes with different positions in the leachate recharge well; covering the garbage layer; and respectively adding leachate with different microbial compound inoculants into the water injection pipes with different positions. The method provided by the application can shorten the degradation time of organic matters in the garbage, accelerate the stabilization of the garbage, and reduce the operation cost of the stabilization.
Owner:BEIJING LONGTAO ENVIRONMENTAL REMEDIATION CO LTD

Method for constructing stream stone retaining dam by utilizing waste rocks of waste dump

The invention relates to the technical field of water conservancy projects and ecological restoration, in particular to a method for constructing a stream stone retaining dam through waste rocks of a waste dump, and the construction of the stream stone retaining dam comprises upstream area construction, retaining dam main body structure construction, downstream area construction, riverbed area construction and ecological slope protection construction. And the upstream area construction, the retaining dam main body structure construction, the downstream area construction and the riverbed area construction are all constructed by using waste rocks screened out of a waste dump. The method has the beneficial effects that the stream stone retaining dam is constructed by reusing the waste rocks of the waste dump, the waste rocks are reused, the waste rock treatment difficulty is reduced, the waste rock treatment cost is saved, the waste rock resource recycling rate is increased, the resource utilization rate is high, and high-value utilization of the waste rocks of the waste dump is achieved.
Owner:MCC NORTH (DALIAN) ENG TECH CO LTD

A drainage system and construction method for a slope-type spoil ground

The application provides a slope type waste dump drainage system and a construction method. The drainage system comprises a surface drainage system, a shallow drainage system and a deep drainage system. The surface drainage system comprises a water intercepting ditch and a plurality of horse paths. The water intercepting ditch is arranged around the edge line of the waste dump. The horse paths are arranged across the surface of the waste dump. The inner side of the horse paths is provided with a horse path drainage ditch. The shallow drainage system comprises a plurality of deep intercepting drainage channels and drainage blind trenches. The deep intercepting drainage channels are arranged below the ground surface line of the waste dump in a horizontal and vertical staggered manner. The deep drainage system comprises drainage holes. The drainage holes are arranged below the lower limit of the strong weathering zone and are distributed in a zigzag shape. A plurality of deep drainage holes are arranged in the drainage holes. The surface drainage system composed of the water intercepting ditch and the horse path drainage ditch, the shallow drainage system composed of the deep intercepting drainage channels and the drainage blind trenches and the deep drainage system composed of the drainage holes and the deep drainage holes are combined in a manner of high efficiency and rapidity to reduce the underground water level line and discharge the surface seepage, thereby effectively ensuring the stability of the waste dump.
Owner:POWERCHINA HUADONG ENG CORP LTD

Disposal device for radioactive waste

The application discloses a kind of radioactive waste dumping devices, comprising: support, waste dumping bucket, moving mechanism, main body fixing frame, turnover mechanism, receiving mechanism, moving mechanism is set on support, moving mechanism is connected with waste dumping bucket, and moving mechanism is used to move waste dumping bucket;Turnover mechanism is set on main body fixing frame, and turnover mechanism is used to receive waste dumping bucket placed on the moving mechanism on turnover mechanism, and waste dumping bucket is turned over;Receiving mechanism is located below turnover mechanism, and receiving mechanism is used to receive radioactive waste dumped after waste dumping bucket is turned over.The radioactive waste dumping device in the application cooperates with waste dumping by transporting waste dumping bucket and passive turnover mechanism, can improve waste recovery efficiency, reduce decontamination difficulty, and improve the reliability of the waste dumping operation process.
Owner:CHINA NUCLEAR POWER ENGINEERING CO LTD

Crushing device for kitchen waste treatment

The utility model discloses a crushing device for kitchen waste treatment, which relates to the field of kitchen waste treatment and comprises a kitchen waste crushing box and a waste dumping part arranged on one side of the kitchen waste crushing box. A plurality of chains are arranged on one side of the kitchen waste crushing box and located on one side of the guide rail, a first connecting cross rod and a second connecting cross rod are arranged on the outer walls of the chains, a limiting frame is arranged on one side of the first connecting cross rod, and a supporting frame is arranged on the side wall of the second connecting cross rod. The kitchen waste treatment device can improve the kitchen waste treatment efficiency and reduce the labor intensity of treatment personnel.
Owner:YANG ZHOU JIN RUN XIN HUAN BAO KE JI YOU XIAN GONG SI

Slag dump long-term stability dynamic evaluation method based on day-ground-room conjoint analysis

The invention provides a method for dynamically evaluating the long-term stability of a waste slag yard based on day-ground-room conjoint analysis, and belongs to the field of waste slag yard stability evaluation. The method comprises the following steps: firstly, performing double integration through PS-InSAR deformation monitoring in combination with elevation data before and after construction to obtain volume variation and soil mass density of the waste slag field in different periods, and solving the problem that the soil mass density changes along with time; then, the water content and the compaction degree of the soil body of the waste slag field in different periods are obtained through combination of field monitoring and indoor testing, and the problem that the compaction degree changes along with time is solved. Secondly, building a function relation among the physical property parameters of the soil body, the moisture content and the compaction degree based on indoor testing, and solving the problem that the physical property parameters of the soil body change along with the environment; and finally, constructing a function relation among the stability safety coefficient, the moisture content and the compaction degree based on a strength reduction method, solving the problem that the existing evaluation cannot respond to the change of field conditions in time, and providing a reliable evaluation method for the dynamic evaluation of the long-term stability of the waste slag field.
Owner:GUANGXI UNIV +1

Method for inhibiting toxic and harmful gas in leachate pool of urban garbage dump

The invention relates to a method for inhibiting toxic and harmful gas in a leachate pool of an urban garbage dump. The method comprises the steps of three-dimensional closed system construction, precise spraying adsorption system configuration and flexible operation and maintenance of an auxiliary system. According to the invention, gas diffusion is blocked through the three-dimensional sealing cover, and a high-pressure micro-mist spraying technology is combined, so that micron-sized adsorbent mist is in full contact with harmful gas, the adsorbent has high-efficiency adsorption capacity on multi-component gases such as hydrogen sulfide and carbon monoxide, the concentration of the harmful gas in a sealed space is greatly reduced, and the removal efficiency can reach 90% or above; the selected composite adsorbent takes modified zeolite as a core component, harmless treatment or recycling can be performed after adsorption saturation, and no new pollutants are generated; meanwhile, the closed system avoids direct contact between the adsorbent and the external environment, and overcomes the defects that in the prior art, the treatment efficiency of poisonous and harmful gas in the percolate pool of the urban garbage dump is low, the poisonous and harmful gas is easy to diffuse, and secondary pollution is possibly generated.
Owner:INNER MONGOLIA LINGLINGQI TECHNOLOGY CO LTD

Channel type waste dump and method of dumping waste

PendingCN122304311ASoft clayDitch
This invention relates to the fields of water conservancy and hydropower construction and soil and water conservation, and discloses a ditch-type spoil heap, including a ditch, a spoil retaining dam, and an in-reservoir storage area. The spoil retaining dam is located downstream of the ditch, and the in-reservoir storage area includes a first storage area and a second storage area. The first storage area is located upstream of the spoil retaining dam and can be used for storing rocky spoil; the second storage area is located upstream of the first storage area and can be used for storing soil spoil. During spoil heaping, the upstream slope of the spoil retaining dam forms the first storage area for storing rocky spoil, and the upstream side of the first storage area forms the second storage area for storing soft clay spoil. This achieves large-capacity storage of soft clay, improves the space utilization rate of the spoil heap and the capacity for disposing of engineering spoil. By adopting a classified and zoned storage method, the risk of siltation and water environment deterioration downstream of the second storage area is reduced, thus controlling soil erosion at its source. This invention also provides a spoil heaping method.
Owner:POWERCHINA ZHONGNAN ENG

Net to prevent damage from crows scattering garbage.

Provides a protective net to prevent crows from scattering garbage discarded at a garbage dump. [Solution] A double-layered net is created by overlapping a short net 1 and a long net 2 and connecting them at the upper end. The upper end of the double-layered net is installed at a high position in the garbage area, with the long net 2 facing the garbage side and the short net 1 facing the side where crows enter the garbage area, and the lower end of the long net 2 is extended further towards the side where crows 8 enter than the short net 1. Even if a crow 8 approaches the garbage 7 to make contact and lifts the short net 1, it cannot make contact with the garbage 7 because of the long net 2. Furthermore, since the crow 8 itself is stepping on the long net 2, it becomes difficult for it to lift the long net 2, thus preventing the crow 8 from making contact with the garbage 7.
Owner:榎田 圭吾

Autonomous unloading method and device, electronic equipment and storage medium

The invention provides an autonomous unloading method and device, electronic equipment and a storage medium, and relates to the technical field of autonomous unloading, the autonomous unloading method and device are used for unloading from a self-loading and unloading garbage truck to a mobile garbage station, and the self-loading and unloading garbage truck comprises a box body lifting oil cylinder, a tail camera and a scraper mechanism; the method comprises the following steps: acquiring a pressure signal of a box body lifting oil cylinder and image data acquired by a tail camera; determining an estimated value of the weight of garbage in the box body of the self-loading and self-unloading garbage truck based on the pressure signal; identifying a garbage filling state in a garbage hopper of the mobile garbage station based on the image data; an unloading control instruction is generated based on the estimated value and the garbage filling state; and based on the discharging control instruction, a box body lifting oil cylinder is controlled to execute lifting or stopping action, and a scraper mechanism is synchronously controlled to execute opening or closing action, so that automatic discharging is carried out. In the mode, manual intervention is not needed, the single dumping amount can be automatically controlled, garbage overflow is avoided, and the unloading efficiency and the operation safety are remarkably improved.
Owner:NANJING GOLDEN DRAGON BUS CO LTD

A construction method of a waste dump sinkhole structure

The application relates to the technical field of hydraulic engineering, and particularly provides a spoil ground fall hole structure and a construction method, which comprises a drainage ditch, a prefabricated concrete pipe and a lead wire stone cage. The drainage ditch is arranged on the top surface of the spoil ground, the lead wire stone cage covers the entrance of the fall hole, and the prefabricated concrete pipe is vertically arranged above the lead wire stone cage. The upper end of the prefabricated concrete pipe is communicated with the bottom of the drainage ditch. The drainage ditch, the brick masonry structure, the prefabricated concrete pipe and the lead wire stone cage are arranged. The water flow of the spoil ground is guided through the drainage ditch and discharged into the prefabricated concrete pipe, so that the short-term heavy rainfall is timely discharged, and the soil erosion and landslide caused by the short-term heavy rainfall to the spoil ground are prevented. The water flow is filtered through the lead wire stone cage and discharged into the fall hole. Meanwhile, the multiple lead wire stone cages are used as the foundation of the prefabricated concrete pipe, so that the overall structure is more stable, the original hydrogeological condition is maintained as much as possible, and the ecological environment is protected.
Owner:CHINA WATER RESOURCES BEIFANG INVESTIGATION DESIGN & RES CO LTD

Flying dust spraying system and method for open pit coal mine waste dump

The invention provides an open-pit coal mine waste dump raised dust spraying system and method.The open-pit coal mine waste dump raised dust spraying system comprises a support, wind blocking mechanisms, a wind power driving mechanism, a spraying mechanism and a recycling mechanism, airflow in the horizontal direction is effectively blocked through the wind blocking mechanisms arranged on the two sides of the support, and initial generation and diffusion of raised dust are restrained; the wind power blade fan located at the top of the support is used for capturing overhead high-speed airflow, the wind energy is transmitted to the wind guiding assembly through the transmission assembly, and therefore active guiding and air pressure adjusting of air in the protection area are achieved, the negative pressure suction effect caused by acceleration of the airflow above the wind shielding facility is weakened, dissipation of dust-containing air is effectively restrained, and the protection effect is improved. And moreover, multi-layer water mist coverage is implemented through the spraying mechanism, the capturing efficiency of dust with different particle sizes is improved, fog drops with adsorbed dust are collected through the recycling mechanism, and the problems that the ground is slippery and muddy due to water mist sedimentation are solved.
Owner:SHENHUA ZHUNGER ENERGY

Mining area ecological restoration effect evaluation method in combination with multi-source data

The invention discloses a mining area ecological restoration effect evaluation method combined with multi-source data, which comprises the following steps of: firstly, constructing a mining area ecological restoration evaluation system through multi-source remote sensing data and soil physicochemical property data, and starting from two criterion layers of stability and adaptability by adopting an analytic hierarchy process; establishing a multi-layer index structure including soil nutrients, volume weight, water content, gradient, earth surface deformation, vegetation coverage and diversity; an optical remote sensing image and a radar image are processed through an SBAS-InSAR technology to obtain earth surface deformation and vegetation information, and physical and chemical properties of soil are analyzed in combination with field sampling; and finally, quantitative evaluation of the ecological restoration effect of the mining area is realized through weight calculation and consistency check. The application result of the method in the Shengli north waste dump shows that the method can comprehensively and objectively reflect the ecological restoration condition of the mining area, and a scientific basis is provided for continuous management and optimization of ecological restoration of the mining area.
Owner:JIANGSU OCEAN UNIV

Strip mine dump slope intelligent safety early warning system based on Internet of Things technology

The invention belongs to the technical field of waste dump supervision, and particularly relates to an intelligent safety early warning system for a strip mine waste dump slope based on the Internet of Things technology, which comprises a slope Internet of Things sensing module, a sensing data fusion preprocessing module, an intelligent slope risk research and judgment module, a patrol response tracking module and a slope safety supervision end, according to the method, the slope of the strip mine dumping site is comprehensively monitored, a standardized and high-reliability monitoring data set is generated through abnormal value elimination, format unification and multi-source fusion, and the slope risk is identified by means of a historical risk database and a machine learning intelligent model in combination with preprocessed accurate data. Early warning is triggered and patrol personnel are scheduled in time based on the risk research and judgment result, and the whole patrol process is tracked, so that effective supervision of the strip mine dumping site is realized to ensure the safety of the strip mine dumping site, supervision of the slope of the strip mine dumping site is enhanced in time by reasonably evaluating the supervision risk of the strip mine dumping site, and the safety of the strip mine dumping site is improved. The slope safety and stability are further ensured.
Owner:CHINA THIRD METALLURGICAL GRP

Surface soil layered covering and curing device for open pit coal mine dumping site

The utility model relates to the technical field of coal mines, in particular to an opencast coal mine waste dump surface soil layered covering and solidifying device which comprises a material box and a threaded sleeve, a first bearing is embedded in the top of a fixing frame, a first fixing rod is fixedly installed on an inner ring of the first bearing, and a motor is installed on the top of the fixing frame above the first fixing rod. First stirring rods are installed on the outer side of the section, extending into the material box, of the first fixing rod in an annular array mode, a connecting rod is welded to the bottom of the first fixing rod, second fixing rods are welded to the bottom of the connecting rod, reciprocating lead screws are fixedly installed on inner rings of two second bearings, and the threaded sleeves are connected with the reciprocating lead screws in an engaged mode; a support is welded to the side, away from the material box, of the threaded sleeve, and a pressing plate is installed at the bottom of the support. The material mixing device has the advantages that material particles attached to the inner wall of the material box are scraped down and backfilled to the ground in the process of mixing the materials in the material box, and the materials are compacted on the ground.
Owner:ORDOS JIAXINDE COAL CO LTD

Method for determining dumping priority of dumping site and related device thereof

The invention relates to a method for determining the dumping priority of a dumping site and a related device thereof. The method comprises the following steps: acquiring multi-source sensing data of target operation equipment; wherein the multi-source sensing data at least comprises point cloud data, position data and image data; generating a target operation map according to the multi-source sensing data; wherein the target operation map comprises a plurality of operation sub-regions; calculating the operation priority of each operation sub-region based on a preset priority algorithm; and based on the operation priority, controlling the target operation equipment to discharge soil from the operation sub-region. According to the scheme, the waste dump can be dynamically partitioned, the transportation cost of a transportation machine is reduced, and the operation efficiency and safety of the waste dump are improved.
Owner:LUOBO NETWORK (HANGZHOU) INFORMATION TECHNOLOGY CO LTD

Zero-carbon atmospheric condensation water collecting device for strip mine dump in arid and semi-arid areas

The utility model relates to an arid and semi-arid area strip mine dump zero-carbon atmospheric condensation water collecting device, which belongs to the technical field of atmospheric condensation water collection, and is characterized in that an air inlet fan is communicated with one or a combination of an air inlet device and a power supply device which are used for driving the air inlet fan to rotate; a condensing device for generating atmospheric condensed water is mounted in the shell; according to the utility model, the hydrophilic material and the hydrophobic material are combined, so that the water collecting and converging process is optimized, and the dew loss is reduced; through the design of the electrostatic brush and the brush rotating support, automatic condensed water collection is achieved, manual intervention is reduced, a photovoltaic power generation panel is used as a power supply device, self-sufficiency of clean energy is achieved, dependence on traditional energy is reduced, carbon emission is reduced, a storage battery is used for storing electric energy, and it is ensured that under the condition that illumination is insufficient, energy is saved. The device can still operate normally; for arid and semi-arid regions, moisture in the atmosphere can be effectively utilized, and the waste dump maintenance cost is reduced.
Owner:CHINA UNIV OF MINING & TECH

A long-term stability dynamic evaluation method for a waste dump based on a sky-ground-room combined analysis

This invention provides a dynamic assessment method for the long-term stability of spoil heaps based on a combined air-ground-indoor analysis, belonging to the field of spoil heap stability assessment. First, by using PS-InSAR deformation monitoring and combining it with elevation data before and after construction, double integrals are performed to obtain the volume change and soil density of the spoil heap at different times, addressing the issue of soil density changing over time. Then, by combining on-site monitoring and indoor tests, the soil moisture content and compaction degree of the spoil heap at different times are obtained, addressing the issue of compaction degree changing over time. Second, based on indoor tests, functional relationships between soil physical property parameters and moisture content and compaction degree are constructed, addressing the issue of soil physical property parameters changing with the environment. Finally, based on the strength reduction method, a functional relationship between the stability safety factor and moisture content and compaction degree is constructed, addressing the problem that existing assessments cannot respond promptly to changes in on-site conditions, providing a reliable assessment method for the dynamic assessment of the long-term stability of spoil heaps.
Owner:GUANGXI UNIV +1

Method for synergistically improving barren loess in waste dump of open pit coal mine in northern area through red mud magnetizing roasting iron separation residues and coal mine black water

The invention discloses a method for synergistically improving barren loess of a northern open pit coal mine dumping site through red mud magnetizing roasting iron separation residues and coal mine black water, the red mud residues can be harmlessly treated and recycled through magnetizing roasting and water quenching cooling, the red mud residues are utilized by 100%, the stockpiling occupied area of each ton of red mud is reduced by 0.5 m < 3 >, and soil improvement (1% of the red mud magnetizing roasting iron separation residues and 1% of the coal mine black water) is achieved. The field water holding rate of the barren loess in the mining area can be increased from 46.37% to 62%, the saturation infiltration rate can be reduced from 70.32 mm / h to 52 mm / h, the volume weight can be reduced by 12%, the nitrogen leaching loss can be reduced by 40%, the organic matter can be increased from 0.8% to 2.1%, and through specific magnetizing roasting parameters (the ratio of the red mud to the lignite is 100: 35, the temperature is 1000-1200 DEG C, and the time is 90-150 min, the yield of the loess in the mining area can be increased by 20%). The conversion from the red mud-based hematite to the magnetic hematite and the dissolution of Na2O (orthogonal experiment verification) are realized (the optimal combination is 100: 35 / 1100 DEG C / 120min), and water quenching cooling (the rate gt; and then carrying out 0.5-1.0 T magnetic separation to obtain iron ore concentrate of which the TFe is greater than or equal to 85% and residues of which the magnetic hematite content is greater than or equal to 15%.
Owner:GUONENG BAOTOU ENERGY CO LTD SHUIQUAN OPEN PIT COAL MINE +3

A maintenance method for solving the degradation of turf caused by salt precipitation of abandoned slag in a cold region tunnel

PendingCN122349920AFreeze thawingWaste dump
The present application relates to a kind of maintenance methods for solving the degradation of turf caused by salt precipitation of waste dump in cold region tunnel, comprising the following steps: S1 waste dump surface shaping and slope stabilization treatment;S2 laying salt-blocking isolation layer;S3 seed or seedless functional pill preparation: seed or seedless functional pill includes, in turn, from inside to outside, nutrient soil layer, intermediate closed-cell microporous heat-insulating and moisture-retaining layer and outer layer weak acid slow-release coating layer;Seed functional pill takes grass seed as center;Seedless functional pill takes the nutrient soil layer with a diameter of 4-6 mm as center;S4 adopt sowing type or transplanting type repair mode to build planting layer;S5 partition irrigation and maintenance management;S6 overwintering and green period monitoring maintenance.The present application can weaken the migration of water and salt to turf root zone during freeze-thaw process, alleviate root zone secondary salinization, improve the overwintering preservation rate of turf and long-term covering stability, and at the same time reduce the ecological restoration cost of waste dump in cold region.
Owner:NORTHWEST INST OF ECO ENVIRONMENT & RESOURCES CAS +1

Balling equipment based on garbage dump fly ash treatment

The utility model relates to balling equipment based on wasteyard fly ash treatment, which belongs to the technical field of balling equipment based on wasteyard fly ash treatment, and comprises a support seat, a support frame is obliquely mounted on the right side of the support seat, a shell is fixed on the inner wall of the support frame, a motor is fixed on the right side of the support frame, and the motor is fixed on the right side of the support frame. A rotating rod is fixed to an output shaft of the motor, a granulating disc is fixed to the peripheral wall of the rotating rod, and a discharging mechanism is arranged on the shell; the discharging mechanism comprises a discharging pipe fixed to the bottom face of the shell, an adjusting rod is rotationally connected to the bottom face of the shell, an adjusting plate is slidably connected to the peripheral wall of the adjusting rod, and a plurality of screening pipes are fixed to the top face of the adjusting plate. According to the balling equipment based on garbage dump fly ash treatment, the shell can play a shielding role, fly ash balls are prevented from flying out of the equipment along the inner wall of the granulation disc, the shell blocks the fly ash balls and gathers the fly ash balls in the shell to play a collecting role, and the fly ash balls are conveniently collected and discharged.
Owner:WUHU CONCH VENTURE IND CO LTD +3

System and method for treating garbage leachate in garbage dump

The invention relates to a garbage landfill leachate treatment system and method, the system comprises a leachate collection assembly and a garbage incinerator, and the leachate treatment system is used for classified storage of garbage leachate according to different time lengths. The interior of a hearth of the garbage incinerator is divided into a combustion area, a penetrating fluid spraying area and a urea spraying area in an echelon mode in the exhaust direction of smoke, the combustion area is provided with a first sensor used for outputting the total amount of nitric oxide, and a second sensor used for outputting the remaining amount of nitric oxide is arranged between the urea spraying area and the penetrating fluid spraying area. The leachate spraying area is provided with a first atomizing nozzle which is respectively connected with the long-term storage tank and the immediate storage tank, and the urea spraying area is provided with a second atomizing nozzle which is respectively connected with the urea storage tank. Based on the system, a garbage leachate treatment method is implemented, namely, the leachate is classified, stored and cultured according to different time lengths, so that the ammonia nitrogen concentration of the leachate is increased; and blending percolate according to the total amount of nitric oxide in the incinerator for denitration.
Owner:YINCHUAN ZHONGKE ENVIRONMENTAL PROTECTION POWER CO LTD

Method and device for preferentially selecting design of waste slag field, electronic equipment and storage medium

The embodiment of the invention provides an optimization selection method and device for waste slag field design, electronic equipment and a storage medium, and relates to the technical field of geotechnical engineering.The method comprises the steps that the attribute value of a target analysis factor in each to-be-evaluated waste slag field design is obtained, the target analysis factors comprise one or more of an ecological land occupation rate, a maximum slag stacking height, a slag stacking coefficient and a stacking height coefficient; for each to-be-evaluated abandoned slag yard design, according to a pre-configured scoring rule, respectively mapping an attribute value of each target analysis factor in the abandoned slag yard design into a single factor score for representing the value rationality of the attribute value, determining a comprehensive score of the abandoned slag yard design according to the abandoned slag yard design and the single factor score corresponding to each target analysis factor; and determining an optimal abandoned slag yard design according to the comprehensive score of each abandoned slag yard design to be evaluated. By applying the embodiment of the invention, the optimal waste slag field design can be determined from the plurality of to-be-evaluated waste slag field designs.
Owner:NORTHWEST ENGINEERING CORPORATION LIMITED