291 results about "Pit water" patented technology

The invention relates to the technical field of mine safety monitoring and geophysical exploration, in particular to a mine water disaster intelligent alarm system responding to multi-dimensional physical field parameter abnormity, which comprises a full-space data acquisition module for acquiring monitoring area observation data and calling a background geological physical model; the ideal reference reconstruction module is used for constructing an ideal physical field reference in a non-abnormal state; the double difference extraction module is used for calculating an observation residual error of observation data relative to a reference and a theoretical residual error of simulation response relative to the reference; the inversion coupling verification module is used for driving the theoretical residual error to approach to the observation residual error and extracting parameter sensitivity characteristics; the intelligent alarm judgment module is used for analyzing sensitivity characteristics and convergence states; generating an alarm instruction if the feature is determined to be the entity fluid abnormal feature; if it is determined that the target abnormal interference feature is not the target abnormal interference feature, signal suppression processing is executed; according to the invention, the false alarm rate of mine water disaster detection is greatly reduced.

The invention discloses a coal mining water retention method, which comprises the following steps of: pre-calculating the height h0 of a water flowing fissure zone in a deep aquifer when the water yield Q2 of a coal mining mine is equal to the total water consumption Q1 of production and life of a mining area, and then calculating the corresponding mining height M0 when a coal seam below is mined according to the height h0 of the water flowing fissure zone; according to the mining height M0, the filling height M2 needing to be equivalently filled in the goaf is calculated, and materials are filled into the goaf behind along with advancing of the coal face during coal mining until the materials reach the height of M2, so that too high or too low development of the water flowing fissure zone can be inhibited, the filling height or thickness can be reduced, and the filling efficiency is improved. According to the method, the balance between the filling height of the goaf and the development height of the water flowing fractured zone is found in an equivalent filling mode, mine water generated during coal mining can meet the total water consumption of production and life of a mining area, the defects caused by complete filling can be avoided, the coal mining efficiency is improved, and the water retention effect is also improved.

The invention belongs to the technical field of coal mine green mining and disaster prevention and control, and particularly relates to a caving area gangue grouting and filling method for recycling underground coal mine water resources. And zero emission and efficient cyclic utilization of water resources are realized. The coal gangue is used as a main filling aggregate and is directly digested underground, so that the problems of land occupation and environmental pollution caused by ground stockpiling are avoided, and harmless and large-scale treatment of the coal gangue is realized. A water treatment system and a gangue treatment system are combined into a whole, the comprehensive operation cost of a mine in the aspects of water disaster prevention and control, gangue treatment and outsourcing of a water source is remarkably reduced through a cyclic operation mode, and the cost benefit is high. Accurate detection and effect verification of the previous and later ponding areas are carried out through a geophysical prospecting means, and measures such as directional drilling and safety monitoring are combined, so that controllability and safety of the whole operation process are ensured, and the safety and reliability are high.

The invention discloses a multi-dimensional comprehensive evaluation method for permeability resistance of overlying strata of a working face, and belongs to the technical field of mine engineering and geological safety evaluation. 12 types of core factors such as rock strength, rock core quality, physical and mechanical properties of rock mass, hydrological properties and mining influence characteristics are integrated; a full-process evaluation framework of data acquisition, index system construction, weight distribution, comprehensive modeling and verification optimization is constructed, an analytic hierarchy process and an entropy evaluation method are coupled to determine index weights, a dynamic evaluation model is constructed in combination with a fuzzy mathematics theory, and accurate classification and risk early warning of the permeability resistance of the overlying strata are realized. According to the method, through comprehensive analysis of a plurality of factors, the accuracy of overlying strata permeability resistance evaluation can be improved, so that the underground water permeation path and the permeation amount are predicted more accurately, the uncertainty is reduced, the comprehensiveness and the accuracy of evaluation are remarkably improved, and a scientific basis can be provided for mine water disaster prevention and control and safe mining.

The invention provides a foundation pit water gushing iron ore grading thixotropic blockage reduction method which comprises the steps that iron ore tailings are crushed and screened into multi-stage particle size particles, and a customized mold is subjected to 3D printing based on foundation pit scanning data; paving particles in a mold layer by layer, doping iron powder, and cementing and curing cement paste to form a prefabricated body; the prefabricated body is installed to a water gushing area, the slurry viscosity is increased through a grading contact network, a weak gravitational flow state is triggered to be transiently changed to an anti-scouring state, and water flow speed reduction is achieved; alternating field induction micro-vibration is synchronously started during lateral grouting, and grout permeation and bubble discharge are driven; after solidification, the guide core body is pulled away, and remaining pore channels are self-compacted by a grading system to form an anti-seepage structure. The method has the advantages that the anti-scouring performance is enhanced; particle-slurry-foundation pit curved surface triple self-adaptive combination is carried out; the engineering cost is reduced.

The invention discloses a mine working face water inflow prediction method based on mining water yield comparison. The method comprises the steps that 1, the development height of a water flowing fissure zone is calculated; 2, counting the sandstone equivalent thickness, the sand-to-ground ratio, the core recovery rate, the brittle-plastic rock thickness ratio, the unit water inflow and the permeability coefficient in the development height of the water flowing fractured zone as multivariate data; 3, determining the comprehensive weight of each evaluation index in the multivariate data; 4, drawing a contour map of mining area mining water yield indexes; 5, giving a fitting equation of the water inflow of the working face and the water yield index, and predicting the water inflow of the working face; according to the method, the contour map of the mining water yield index of the mining area is formed by coupling all the parameters, the correlation equation of the mining water yield index and the water inflow is constructed, the water inflow of the working face to be mined can be predicted based on the known mining water yield index through the equation, and the method is easy to operate and high in practicability. And the method is of great significance to the construction of mine water disaster prevention and treatment and mine water treatment facilities.

The invention provides a mine water softening and dosing system and a control method, and belongs to the technical field of water treatment equipment, and the mine water softening and dosing system comprises water treatment equipment, a detection mechanism, an adjusting mechanism and a control unit. Through cooperation of the detection mechanism and the control unit, feed-forward detection and feed-back detection of softening treatment of mine water are achieved, and the control unit can achieve determination of the initial feeding amount of drugs and adjustment of subsequent feeding according to the feed-forward detection and the feed-back detection; the flow, alkalinity and pH value of inlet water and outlet water as well as the turbidity and alumen ustum image of the outlet water are detected at the same time, and the control system can comprehensively sense the water quality change and the treatment effect according to the detection result, so that the refined and automatic adjustment of the addition of various medicaments is realized, the dependence on human eye observation and manual test is reduced, and the operation is simple and convenient. The intelligent level and the operation efficiency of the whole water treatment process are improved.

The invention provides an intelligent optimization method and system for a mine water deep reinjection horizon, and the method comprises the steps: 1, constructing a three-dimensional geological twin body of a mining area, which comprises the definition of a multi-objective function: maximizing a safety objective f1; minimizing the economical efficiency target f2; the environmental protection target f3 is maximized; 2, multi-objective optimization and Pareto optimal solution set generation are carried out; step 3, intelligent decision and optimal horizon determination: step 301, selecting an optimal horizon; 302, chemical components of mine water are determined, and all buried layer positions are marked as preliminary screening layer positions; and step 303, obtaining comprehensive compatibility indexes of the preliminary screening horizon, and marking the preliminary screening horizon with the maximum value in the comprehensive compatibility indexes as a preferred horizon. According to the method, the horizon optimization efficiency is improved through dynamic modeling and multi-objective optimization, the optimization accuracy is ensured by means of multi-dimensional compatibility evaluation and multi-field coupling analysis, and a technical path with high efficiency and reliability is provided for scientific decision-making of the mine water reinjection horizon.

The invention provides a high-precision mine water recharge dynamic monitoring system and method.The high-precision mine water recharge dynamic monitoring system comprises a distributed sound wave data acquisition subsystem, the distributed sound wave data acquisition subsystem is connected with one end of an armored optical cable, and the armored optical cable is fed into a recharge drill hole through an armored optical cable laying device; the recharge drill hole is further connected with a mine water recharge subsystem for mine water recharge. The sound wave signal processing and feature extraction subsystem comprises a wavelet multi-scale decomposition module, a target frequency band extraction module, a sub-band energy calculation module, a non-target frequency band suppression module and a signal reconstruction module; the intelligent injection channel identification and flow estimation subsystem comprises an injection channel identification module, a flow distribution calculation module and a dominant channel intelligent identification module. The system has the full-shaft and high-temporal-spatial-resolution dynamic monitoring capability, the injection profile dynamic analysis and dominant channel intelligent identification capability, the high reliability and long service life capability in an extreme environment, and the recharge process safety and optimization decision support capability.

The invention discloses a surface water-underground water-mine water coupling simulation scheduling method and system, and the method comprises the steps: obtaining a drainage basin around a target mine in a research region, and screening a reference point closest to the target mine; calculating a water quality fluctuation coefficient of a drainage basin where a reference point closest to the target mine is located on the influence drainage basin; calculating the influence weight of the influence basin on the target mine; and constructing a water balance equation of each influence drainage basin and an underground water control equation associated with the target mine water and the underground water, taking the amount of water permeating into the underground water in the influence drainage basin as an underground water source convergence item, simulating the change state of the mine water, and planning the water amount which can be scheduled at the current simulation scheduling moment of the target mine. The system comprises a water quality sensor, a water level sensor, a data acquisition module and data processing equipment. The method is suitable for dynamic optimization management of mining areas and surrounding complex water resource systems, and is especially suitable for water resource safety scheduling and water disaster prevention and control of mining areas with large water inflow.

The utility model is applied to the technical field of mine water treatment, and discloses graded filtering equipment for mine water treatment, which comprises a sinking bin, a switching motor is fixedly mounted in the lower end of the sinking bin, the upper end of an output shaft of the switching motor penetrates through the inner bottom surface of the sinking bin, and the upper end of the output shaft of the switching motor is fixedly connected with a driving disc; a pressure filtering mechanism is arranged in the upper end of the sinking bin, and mine water is filtered and recycled through underwater pressure of a mine. The graded filtering equipment for mine water treatment is provided with a pressure filtering mechanism and a suction filtering mechanism, primary filtering is conducted through a first-stage filtering net at a first liquid inlet, further filtering is conducted through a second-stage filtering disc in a liquid storage cavity, and secondary filtering is conducted through a third-stage filtering element in the middle section of a connecting pipe, so that multi-stage filtering of mine water is achieved; various impurities, suspended matters and harmful substances in the mine water can be effectively removed, and the quality of treated water is ensured to meet the reuse standard.

The invention belongs to the technical field of coal mining, and particularly relates to a key parameter design method for targeted grouting and filling pier stud water-preserved coal mining. The method comprises the steps that mine hydrogeology and mining geology data are collected, and the burial depth, the thickness, the physical and mechanical parameters and the gangue breaking and expanding coefficient of a coal rock layer are obtained; adopting discrete element numerical simulation to determine the caving zone height under the insufficient mining critical propulsion length; the drilling depth of the grouting drill hole and the caving zone void ratio are calculated; preparing and testing the mechanical strength and diffusion stacking angle of the grouting material in a laboratory; combining the critical coefficient of insufficient mining, applying a rock stratum subsidence probability integral method, and scientifically designing the interval, the radius and the grouting amount of filling pier columns; and finally, cement pier columns are formed in a caving zone through ground drilling and grouting, an overlying rock stratum is stably supported, and structural deformation of the aquifer is controlled. The method is simple in parameter design and high in accuracy, and space-time interference of a traditional filling process is avoided.

The invention relates to the technical field of mine water treatment and utilization, and discloses a mine water resource comprehensive utilization system and method based on multi-target coupling, and the system comprises a multi-source mine water collection module which collects mine water in different underground areas; the hierarchical storage and adjustment module is used for performing hierarchical storage and adjustment on the mine water; the target guiding purification module is used for carrying out targeted purification treatment on the adjusted mine water to generate standard industrial water to be used or irrigation water to be used; the multi-scene utilization module is used for conveying the industrial to-be-used water or the irrigation to-be-used water which reaches the standard to a corresponding water utilization scene and carrying out industrial or agricultural scene water supply utilization; the intelligent coupling regulation and control center module is used for establishing a dual-objective function for maximizing the water resource utilization rate and minimizing the system energy consumption according to the monitoring state data of all the modules and the initial system control instruction and constraint conditions, and performing iterative solution by adopting a multi-objective particle swarm optimization method to generate an optimal control instruction; the utilization rate of mine water resources is greatly increased.

The invention relates to the technical field of mine water disaster prevention and control, in particular to a mine water disaster treatment slurry stone body recognition system and method based on an infrared spectrum. According to the technical scheme, the mine water disaster treatment slurry stone body recognition system and method based on the infrared spectrum comprises a rock debris preprocessing and conveying control module, a spectral data acquisition and control module and an intelligent recognition and output control module; by arranging the rock debris conveying and preprocessing module, continuous receiving and rapid preparation of rock debris are achieved, meanwhile, the near infrared spectrum detection module conducts spectrum scanning on flowing rock debris above a conveying belt and captures molecular fingerprint information, and generated spectrum data are transmitted to the data processing and intelligent recognition module; the recognition result is synchronously fused with parameters such as drilling depth and pumping pressure, a dynamic slurry diffusion map is generated, the recognition process and the drilling process are kept synchronous, the distribution condition of slurry stone bodies at different depths can be visually seen, and therefore the real-time performance of slurry stone body recognition is effectively improved.

The invention aims to provide a coal mine water inrush body deep ex-situ dredging and restoring method and system, and belongs to the technical field of coal mine water disaster prevention and control. The system comprises a water inrush body recognition module, a drainage depressurization system, a closed pipeline collection system, a storage stratum screening and well design module, a high-pressure storage ectopic dredging system and a safety monitoring system. According to the method, the water inrush body is identified by finely evaluating the hydrogeological conditions, the optimal hydrogeological parameters are obtained by using the parameter inversion model and the particle swarm optimization, and drainage and pressure reduction are guided; a reservoir capacity grade dynamic evaluation system is established, a deep suitable stratum is screened, collected mine water is stored back to the deep part by using high-pressure equipment, and full-period safety monitoring is performed in combination with a multi-source data fusion early warning model. The strategic reserve of the mine water depth is achieved, the underground water ecology is effectively maintained, and the treatment cost and the safety risk are remarkably reduced.

The utility model provides a ground drilling, grouting and water plugging device suitable for a metal mine, and relates to the technical field of mine water disaster prevention and control, the ground drilling, grouting and water plugging device comprises a petroleum casing pipe, a grouting drill rod, a rubber umbrella cover, a first grouting device and a second grouting device, the grouting drill rod is arranged in the petroleum casing pipe; the rubber umbrella cover is arranged between the oil casing and the grouting drill rod, the grouting drill rod is sleeved with the rubber umbrella cover, and the arrangement height of the rubber umbrella cover is lower than the top end of the oil casing; the first grouting device is fixedly connected with the grouting drill rod through a pressure-resistant steel pipe; the second grouting device is fixedly arranged on the oil casing pipe, and the connecting position of the second grouting device and the oil casing pipe is lower than the bottom end of the rubber umbrella cover. External incoming water of a broken zone of a mining area can be blocked, the water inrush influence of excavation and construction is reduced, the grouting efficiency is improved, the slurry loss is reduced, and the service life of the mining area is prolonged. Therefore, excavation safety is guaranteed, and construction cost is reduced.

The invention discloses a mine water level monitoring device with a desilting function, which relates to the technical field of water level monitoring and comprises a monitoring machine body, a monitoring rod, an upper sleeve, a lower sleeve, a buoyancy plate, a sliding mechanism, a magnetic mechanism and a stirring mechanism. The monitoring machine body is installed in a reservoir through an installation part, an intelligent detection sensor module is arranged in the monitoring machine body, the monitoring rod is fixed to the lower portion of the monitoring machine body and inserted into the reservoir, the upper sleeve and the lower sleeve are arranged on the monitoring rod in a spaced mode, and the buoyancy plate is movably installed on the peripheral side of the sleeve. The sliding mechanism opens a lower sleeve water suction port and is in butt joint with the magnetic mechanism; during water pumping, high-pressure water flow impacts the turbine, the magnetic mechanism drives the buoyancy plate to rotate, the stirring mechanism synchronously acts to reduce friction force, the stirring piece is unfolded to stir water in the reservoir, and sludge is mixed in the water and discharged along with drained water, the device achieves synchronous water level monitoring and dredging, manual dredging is not needed, and the labor cost is saved; and stable operation of monitoring equipment is ensured.

This disclosure relates to an underground water purification system for preventing siltation and a method for purifying and storing mine water. The system includes: an underground suspended solids purification section and an underground water reservoir; the water outlet of the underground suspended solids purification section is in fluid communication with the water inlet of the underground water reservoir; a filter adsorption material is installed in the underground suspended solids purification section; the underground water reservoir includes a closed space for self-purification of the water, and the closed space contains collapsed rock masses from a mined-out area. The system of this disclosure effectively purifies and stores mine water, and the underground water reservoir has a long service life.

The application relates to the technical field of mine water disaster monitoring, in particular to a mine water disaster early warning method based on geoelectric field parameter change; the method comprises the following steps: acquiring multi-dimensional geoelectric field parameters in real time and synchronously, performing time sequence feature extraction and fusion calculation on the multi-dimensional geoelectric field parameters, and obtaining a global early warning index; generating a primary early warning signal based on the global early warning index; constructing a three-dimensional geological model based on existing geological data, and generating a high-risk area according to an iterative growth rule; determining the early warning level of the primary early warning signal based on the high-risk area and early warning thresholds at all levels, and performing corresponding early warning response; the application realizes efficient early warning and hazard source positioning of mine water disasters, reduces the false alarm rate and the missed alarm rate of water disasters, and improves the reliability of early warning and the pertinence of emergency response.

The present application relates to the technical field of mine safety monitoring and geophysical exploration, in particular to a mine water disaster intelligent alarm system responding to multi-dimensional physical field parameter anomaly, comprising: a full-space data acquisition module: obtaining monitoring area observation data and calling background geological physical model; an ideal benchmark reconstruction module: constructing an ideal physical field benchmark under an anomaly-free state; a double-difference extraction module: calculating observation residuals of observation data relative to the benchmark and theoretical residuals of simulation responses relative to the benchmark; an inversion coupling verification module: driving the theoretical residuals to approximate the observation residuals and extracting parameter sensitivity characteristics; an intelligent alarm decision module: analyzing sensitivity characteristics and convergence state; determining as entity fluid anomaly characteristics to generate an alarm instruction; determining as non-target anomaly interference characteristics to execute signal suppression processing; the present application greatly reduces the false positive rate of mine water disaster detection.

The invention discloses combined water purification equipment suitable for mine water treatment, and relates to the technical field of water treatment.The combined water purification equipment is characterized in that a purification assembly is placed in a flocculation box and a microbiological treatment box, and a filler frame in the purification assembly is filled with a flocculating agent or microbial flora to treat mine water; the first hole is formed in the bottom of the purification box and used for water inflow, and the second hole is formed in the top of the purification box and used for mine water overflow, so that flocculent impurities generated by purification treatment of the mine water can be deposited in the purification box along with blockage formed by deposition of the flocculent impurities and flowing of the mine water from bottom to top; and the purification assembly can automatically ascend when reaching the maintenance period, so that automatic lifting operation of flocculent impurities is synchronously realized, the situation that the flocculent impurities are deposited at the bottoms of the flocculation box and the microbiological treatment box and are difficult to clean is avoided, the use convenience of the device can be effectively improved, and improvement of the mine water purification treatment efficiency is facilitated.

The invention relates to a paste filling material as well as a preparation method and application thereof, and belongs to the technical field of filling materials. The paste filling material provided by the invention is prepared from the following components in parts by weight: 20 to 30 parts of cement, 50 to 60 parts of coal gangue and 15 to 25 parts of mine water, the coal gangue comprises coarse-fraction coal gangue and fine-fraction coal gangue, the particle size of the coarse-fraction coal gangue is 5mm-20mm, and the particle size of the fine-fraction coal gangue is 1t; the mass ratio of the coarse-fraction coal gangue to the fine-fraction coal gangue is (6: 4)-(9: 1); meanwhile, an aggregate model conforming to specific particle size distribution is generated in a programmed mode through a Python script, and proper particle size distribution is designed. According to the paste filling material disclosed by the invention, wastes such as coal gangue and mine water are used, so that the utilization rate of the wastes is high, and the integration of mining, filling and discharging is realized, namely coal mining, filling and mine water recycling are synchronously carried out.

The invention discloses a mine water sampling device, and relates to the technical field of mine water sampling, the mine water sampling device comprises a moving assembly and a sampling assembly arranged on the moving assembly, and also comprises an adjusting assembly arranged on the moving assembly, and the adjusting assembly can adjust the moving assembly when the moving assembly is inclined to reduce the possibility of rollover. And the driving motor is arranged on the moving assembly, and the driving motor is used for driving the whole device to move in the horizontal direction. Through cooperation of the sampling device and the driving motor, due to the fact that the concentrations of pollutants at different positions of continuous ponding are different due to various factors at the ponding position, ponding at different positions needs to be sampled, the driving motor drives the device to move, different sampling barrels are replaced, and the sampling efficiency is greatly improved. Accumulated water at different positions can be conveniently sampled, and the sampling efficiency is higher.

The utility model relates to liquor making equipment technical field, specifically disclose a pit convenient to collect cellar bottom water. Including cellar pool body, the filter micropore partition that slides and installs in the cellar inside, is located the inverted ladder platform collection tank of the partition lower reaches, with the liquid storage box and automatic pumping system of communication of collection tank. Through the filter of partition and cellar bottom water, the collection tank high -efficiently guides the yellow water to the liquid storage box, and the liquid level sensor triggers the water pump to be pumped through the liquid outlet pipe, long pipe and tee pipe automatically, solves the problem that traditional manual extraction yellow water is low in efficiency, and the problem that the breakage rate of fermented grains is high, realizes the pollutionless collection of cellar bottom water and the complete protection of fermented grains, improves liquor quality and production efficiency.

The invention discloses a mine water recharge pretreatment device which comprises a supporting plate, the outer side of the top of the supporting plate is sleeved with a shell, one side of the top of the shell is fixedly connected with a supporting frame, one side of the supporting frame is fixedly connected with a box body, and the center axis of the top of the box body is fixedly connected with a first motor; and the output end of the first motor is fixedly connected with a first stirring roller. Through the staged stirring design and the rapid mixing stage, a flocculating agent is in full contact with mine water, charge neutralization is completed, flocs are promoted to collide and agglomerate into large and dense flocs in the slow flocculation stage, the flocs are prevented from being damaged by strong turbulence, and the flocculation effect is improved; secondly, the multi-shell design is matched with switching of the flow guide pipes, materials can be processed in parallel, the hydraulic retention time is flexibly adjusted, and the processing efficiency is improved; water and sediments are separated through a mechanical structure after sedimentation, operation is convenient, the sediments are treated in a centralized mode, the occupied area of the device is small, and the space utilization rate is high.

The embodiment of the invention discloses an intelligent cooperative regulation and control method and system for coal mine underground water treatment and back-supplement, and the method comprises the steps: obtaining the inflow water quality time sequence data of primary mine water, and predicting the optimal inflow water flow based on the inflow water quality time sequence data through a bidirectional long-short-term memory network, adjusting the water inflow of the sedimentation tank to the flow so as to carry out sedimentation pretreatment on the primary mine water; multi-dimensional membrane operation parameters of the ultrafiltration membrane are obtained after pretreatment, the pollution degree of the ultrafiltration membrane is determined based on the parameters through a variational auto-encoder, an ultrafiltration membrane cleaning strategy is dynamically adjusted based on the pollution degree, and cleaning operation is executed; and after cleaning, acquiring underground hydrological data and refilling water quality data of the target refilling area, and determining a distribution scheme of each refilling well by utilizing a water volume dynamic distribution prediction model fusing a time sequence convolutional network, a gating mechanism and a self-attention mechanism in combination with the underground hydrological data and the refilling water quality data. And according to the distribution scheme, water reaching the standard is supplemented to the target underground water layer through the corresponding supplementing well.

The present disclosure provides a mine water solidification material composition and a preparation method and application thereof, and the mine water can be purified by using the composition, the mine water can be further fully utilized, the comprehensive utilization efficiency of the mine water is improved, the solid waste is harmlessly treated, and land destruction and environmental pollution are reduced.

The utility model relates to the technical field of charging piles, in particular to a waterproof sealing assembly and a buried lifting charging pile. In order to solve the problems that an existing buried charging pile is insufficient in single-layer sealing waterproof performance and water is prone to entering a pit during lifting, a double-sealing and water guiding structure is adopted in the scheme. The sealing assembly comprises a ground box pre-buried in a concrete base layer, and a top cover is arranged on the top. An inclined first sealing edge is arranged around the top cover and is in contact with the ground box to form a first waterproof layer; a sealing frame is additionally arranged at the bottom of the top cover and pressed with the top face of the ground box to form a second waterproof layer. A water retaining frame is fixed to the top of the ground box, and a bent arc-shaped part of the water retaining frame can block surface water flow. The charging pile body drives the chain wheel and chain mechanism to ascend and descend through the motor, the water guide pipe introduces accumulated water outside the water retaining frame into the bottom water tank, and the liquid level sensor triggers the water pump to automatically drain water. The structure improves the sealing reliability, reduces the pit water accumulation risk, and prolongs the service life of equipment.

This invention belongs to the field of thermal energy recovery and automation control, specifically relating to an intelligent control system for mine water waste heat recovery. The system includes a production condition sensing device, a multi-source thermal monitoring device, an energy value analysis center, a dynamic load dispatching terminal, a multi-media heat exchange actuator, and a flexible thermal energy storage system. The system collects real-time mine production conditions and multi-source thermal parameters, constructs an energy asset model using a discrete state transition probability model, and, based on a game theory bidding mechanism and electricity price fluctuation trend prediction, guides the heat exchange actuator and storage system to perform optimized allocation and predictive storage of thermal energy. This invention transforms fluctuating heat sources into predictable energy assets, achieving the lowest-cost and most energy-efficient energy configuration scheme in a multi-source coupled environment, improving resource utilization, and ensuring the stability of energy supply in the mining area.

The application discloses a coal seam water inrush danger monitoring method and system based on repeated disturbance in an ecological fragile area, and relates to the technical field of mine water disaster prevention and control. The method comprises the following steps: comprehensively determining engineering geological conditions according to the vertical depth of the wind oxidation zone and the coal seam characteristic parameters; performing numerical simulation by using a numerical model; based on the positions of the fan lanes of the coal seam working faces in the mine field exploration line graph, determining the water prevention and isolation coal rock pillar setting under repeated disturbance of the coal seam working face near the ecological fragile area coal seam hidden outcrop by using the development heights of the two zones and the height inhibition coefficients of the wind oxidation zone two zones when the coal seam working faces are mined for different lengths, and monitoring the water inrush danger of the working face according to the roof failure characteristics of each working face in the regional roadway. The application can realize real-time and accurate water inrush danger monitoring of the working face near the coal seam hidden outcrop.