47 results about "Surface mining" patented technology

The invention relates to the technical field of mining machine transmission mechanisms, in particular to an automatic tensioning system and an open-cast mining machine, and the automatic tensioning system comprises a speed reducer output wheel and a milling roller receiving wheel which are connected through a belt, and further comprises a tensioning part connected with the belt and used for adjusting the tensioning force of the belt; the control part is connected with the tensioning part and used for controlling the tensioning part to change the tensioning force of the belt; and the information acquisition module is used for acquiring the tensioning part information, the speed reducer output wheel information, the milling roller receiving wheel information, a first preset range value and a second preset range value. Compared with a traditional tensioning device of a fixed structure, the system can respond to the requirement for belt tensioning force change caused by various factors in the working process in real time, the appropriate tensioning degree of the belt is automatically maintained in the equipment operation process, the power transmission stability and the equipment operation efficiency are improved, and the system is suitable for popularization and application. And the equipment fault and the maintenance cost caused by the problems of belt slipping and the like are reduced.

The present application relates to the technical field of open-pit mining, in particular to a fully internal discharge period stripping and dumping balance method for open-pit coal mine, comprising: calculating internal discharge space utilization coefficient, ideal internal discharge space utilization coefficient and surplus dumping space; establishing a natural stripping and dumping curve, the natural stripping and dumping curve taking internal discharge space as horizontal coordinate and taking cumulative stripping amount as vertical coordinate, the slope of the natural stripping and dumping curve being internal discharge space utilization coefficient, defining the stage with slope less than ideal internal discharge space utilization coefficient as space surplus stage and defining the stage with slope greater than ideal internal discharge space utilization coefficient as space insufficient stage; finding a year limit set in which the sum of surplus dumping space of space insufficient stage and space surplus stage is 0; calculating the cost of each year limit in the year limit set and finding the year limit corresponding to the lowest cost, which is defined as optimal balance period; and formulating stripping and dumping operation plan by using the optimal balance period. The present application can judge the dumping space surplus and insufficient stages in fully internal discharge period, and improve internal discharge space utilization rate.

The invention relates to a landform-vegetation-hydrology-pond four-dimensional integrated comprehensive ecological restoration method suitable for an open-cast mining field, and belongs to the technical field of mine ecological restoration. Comprising the following steps of (1) landform and rock soil restoration, (2) soil vegetation restoration, (3) side slope hydrological regulation and control and (4) pond ecologication.According to the ecological restoration method, a four-dimensional integrated collaborative restoration technology system is adopted, and the ecological function of a mine is optimized through multi-dimension and multi-technology collaborative optimization.

The invention relates to a transportation method based on bridges and culverts, and relates to the technical field of open-cast mining. The transportation method based on the bridge and culvert comprises the steps that the bridge and culvert is arranged on one side of a first preset position, the bridge and culvert comprises a bridge body and at least one culvert penetrating through the bridge body, and the culvert communicates with the first preset position and a second preset position; each culvert comprises a first lane and a second lane which are opposite in driving direction; the first vehicle group transports materials through the bridge and culvert road; and the second vehicle travels from the second preset position to the first preset position through a first lane in the culvert, and travels from the first preset position to the second preset position through a second lane in the culvert. The bridge and culvert road and the culvert are arranged to form the vertical crossing transportation line, coal is transported to the crushing station through the end slope road and the culvert, the vertical crossing transportation line is formed, the conflict problem of horizontal intersection of the first vehicle group and the second vehicle on the end slope road is solved, potential safety hazards caused by vehicle crossing are avoided, and the safety of the crushing station is improved. And the vehicle transportation operation efficiency is improved.

A rod feeding apparatus of the type used in underground and surface mining core drilling is disclosed. The apparatus has a receptacle configured to contain outer rods in a rod storage area. A rod discharging mechanism is configured to support the rods within the rod storage area, and actuatable to displace the rods upwardly and discharge one or more rods from the rod storage area. A rod dispenser associated with the receptacle is adapted to receive the one or more rods discharged from the rod storage area by action of the rod discharging mechanism, and to expose them onto a rod collection area of the rod dispenser for access.

The invention discloses a precious metal vein open-cast mining blasting parameter optimization intelligent calculation system, which comprises a data acquisition module, a double-target coupling algorithm module and an intelligent decision execution module, and is characterized in that the data acquisition module, the double-target coupling algorithm module and the intelligent decision execution module are in communication connection in sequence; the data acquisition module is used for acquiring vein geological grade data, carbon emission related data, slag recovery related data and equipment operation data; the dual-target coupling algorithm module is used for constructing a vein grade grade-rock stratum hardness-blasting energy parameter-carbon emission intensity quaternary mapping model on the basis of the collected data, and the vein grade grade-rock stratum hardness-blasting energy parameter-carbon emission intensity quaternary mapping model is constructed. Optimized weights are automatically distributed based on the vein grade, precise energy control blasting parameters are adopted for a high-grade area, and precious metal loss caused by excessive crushing is reduced; and optimizing the parameters of the low-grade area to guarantee the basic dissociation effect.

The invention discloses an open-pit mine continuous mining system and mining technology, and relates to the field of open-pit mining technology, the mining system comprises a cutting and transshipping all-in-one machine, a mine receiving car, a cable car, a crawler belt self-moving type sealing-tape machine and an end slope sealing-tape conveyor; the cutting and transshipping all-in-one machine comprises a mining machine and a transshipping sealing-tape machine between which a rotary supporting device is arranged; two conical spiral rollers are arranged on one side of a mining machine body, and receiving, crushing and transporting devices are arranged on the two sides of the advancing direction. A track is laid on a truss structure of the crawler belt self-moving type sealing-tape machine; the end slope rubber belt conveyor, the crawler belt self-moving type rubber belt conveyor and the ground rubber belt conveying system are in lap joint to form a continuous conveying system. Wherein the mining process comprises the steps of cutting coal by a mining machine, moving along with a mine receiving car and a cable car, conveying materials to the ground through each device, timely adjusting the direction by a transfer adhesive tape machine, and completing mining circulation. The mining continuity and efficiency of the strip mine are improved, the energy consumption and pollution are reduced, and the device moving time is shortened.

The present application relates to the technical field of equipment overhaul management, and discloses a kind of open pit mining equipment's overhaul management method and system, method includes: based on time period acquisition open pit mining equipment's vibration operating parameter;Periodic variation analysis is carried out to the vibration operating parameter of each time period, and the abnormal variation value of open pit mining equipment in each time period is calculated;Curve fitting is carried out to all abnormal variation values, and the abnormal variation value curve is obtained, and the abnormal variation value curve is processed, and the operating abnormal coefficient of open pit mining equipment is calculated;According to the relationship between operating abnormal coefficient and preset operating abnormal coefficient, it is judged whether open pit mining equipment needs to be overhauled and managed, can deeply fuse the overhaul management method of vibration parameter time sequence analysis, dynamic abnormality quantitative evaluation and intelligent decision-making judgment, to realize the abnormal fault accurate identification and accurate overhaul of open pit mining equipment fault, so as to improve equipment reliability, reduce maintenance cost, and guarantee mine safety production.

The present application relates to the technical field of strip mining machine, and particularly relates to a filter core life prediction method, an electronic device and a medium. The method constructs state information of the engineering machinery hydraulic circuit in a first preset time period into a plurality of sample features (each sample feature represents an operating state in a single preset unit time), and trains an original model to obtain a life prediction model, so that the model can learn the degradation law and time sequence characteristics of the filter core under different working conditions from historical operation samples. In actual application, real-time state information in a second preset time period is collected and input into the life prediction model, and the remaining service life of the filter core after the second preset time period is directly output.

The utility model relates to the technical field of blasting, in particular to a deep hole blasting device for open-cast mining, which reduces the shaking of an electric three-jaw chuck in the descending process, reduces the shaking of an explosive charge, prevents the explosive charge from colliding with the inner side wall of a deep hole when the explosive charge is put in the deep hole, and is high in safety and reliability. Comprising an electric moving trolley and an electric three-jaw chuck. A cavity is formed in the protection cylinder, the upper end and the lower end of the protection cylinder are open, the protection cylinder is installed on the electric moving vehicle through the lifting mechanism, the lifting mechanism is used for lifting the protection cylinder, the guide mechanism is installed on the electric three-jaw chuck and the protection cylinder, and the height adjusting mechanism is used for adjusting the height of the protection cylinder. The guide mechanism is used for guiding the electric three-jaw chuck, and the height adjusting mechanism is used for adjusting the height of the electric three-jaw chuck.

The invention discloses a crab-type deep-sea mining vehicle, which belongs to the technical field of underwater operation equipment, and comprises a vehicle body walking along a straight line, an ore plowing arm mounted at the front end of the vehicle body in the moving direction and capable of performing ore plowing action on a mining area on one side of the vehicle body, and a collecting arm mounted at the rear end of the vehicle body in the moving direction and used for collecting along the working path of the ore plowing arm, mining operation is completed in a mode of profiling crab movement, the plough arm and the collecting arm which are functionally differentiated in form are arranged, the plough arm is used for turning over the sediment mud surface, the collecting arm is used for collecting ore turned out of the sediment mud surface, the device is suitable for surface mining, suction equipment does not need to be used, and the risk of generating sediment plume is avoided from the source; according to the device, the disturbance to a deep sea ecological system is reduced, the requirement of sustainable development is met, meanwhile, the damage to the sediment mud surface is small, large-scale cutting equipment is not depended on, the device is compact in structure and low in gravity center, and subsidence on a soft sediment layer is effectively avoided.

This application provides a replaceable mining rake mechanism and an underwater mining vehicle. The replaceable mining rake mechanism is connected to the mining vehicle body. The mining rake mechanism includes: a mounting frame for connection to the mining vehicle body; a drive unit mounted on the mounting frame, with a docking portion on its main shaft; a mining rake detachably connected to the drive unit via the docking portion and rotated by the drive unit; and a locking assembly mounted on the mounting frame for clamping or releasing the mining rake connected to the drive unit. This solves the problem in the prior art where the mining rake mechanism is difficult to replace after wear and requires the entire mining vehicle to be lifted to a surface mining vessel for replacement, increasing maintenance time.

The present application relates to coal mining technology field, especially to a kind of coal mine working face surface mining subsidence pit monitoring method and system, coal mine working face surface mining subsidence pit monitoring method includes: target hard difficult collapse rock stratum is reformed, to reduce the strength, integrity and integrity of target hard difficult collapse rock stratum;The roof strata of working face initial mining stage are carried out surrounding rock structure detection, determine the damage range, strength and joint fissure distribution of target hard difficult collapse rock stratum of working face initial mining stage roof;The roof strata of working face initial mining stage are carried out pre-splitting, damage the integrity and strength of target hard difficult collapse rock stratum;The position of working face mining predicted subsidence pit is grouted and filled;Monitoring working face initial mining stage mining working face roof strata microseismic event, surface real-time displacement and surface subsidence during working face mining process.Effectively control roadway under the influence of double thick coal seam and hard roof working face mining surface subsidence pit management problem.

The invention provides a coal mine perforation blasting high-temperature hole temperature measuring device and method, and relates to the technical field of open-cast mining perforation blasting and coal mine safety. The device comprises a temperature measuring assembly, a connecting cable, a concentrator, a digital display processing unit, an alarm unit, a data transmission module and a power supply. According to the invention, the temperature in the blast hole can be accurately measured in real time, and the high-temperature risk is pre-warned, so that the safety production of a coal mine is guaranteed.

The invention belongs to the technical field of mining equipment, and particularly relates to a continuous mining and loading machine for open-cast mining and a working method. A material collecting device; the ore stripping device is arranged at the front end of the chassis, the ore stripping device can be switched between a high position and a low position, the ore stripping device is used for conducting ore stripping on an open-pit mine layer at the high position, stripped ore materials fall on the collecting device and the ground, and the ore stripping device is used for sending the ore materials on the ground to the collecting device at the low position; the temporary storage device is arranged at the rear end of the chassis; and the walking device is arranged on the chassis. Through integration of the high-position stripping function and the low-position material stripping function of the ore stripping device, the opening and closing material stripping and collecting function of the material collecting device and the material storing and buffering function of the material storing and buffering device, the technical bottlenecks that traditional equipment is long in operation window period, low in ore loading efficiency and poor in operation continuity are effectively solved, whole-process integrated continuous operation of stripping, material collecting and conveying is achieved, and the working efficiency is improved. And the mining efficiency of a large surface mine can be effectively improved.

The invention provides a method for calculating the safe distance between a dumping site outside a strip mine and a stope, and belongs to the technical field of open-cast mining design. The calculation method comprises the following steps: acquiring a safety distance between a slope base line of a lowermost step of the outer waste dump and a slope top line of an uppermost step of the stope according to respective slope forms of the outer waste dump and the stope, calculating a composite slope stability coefficient according to the safety distance, and comparing the slope stability coefficient with a slope safety reserve coefficient Fst, and the minimum safety distance meeting the safety requirement between the outer dumping site and the stope is obtained. According to the method, the slope stability change trend under different safety distances is researched, on the premise that the slope safety is guaranteed, the surface mine dumping distance is shortened, the economic benefits of the surface mine are improved, and the problem of reserving the safety distance between an outer dumping site and a stope is reasonably solved.

The invention provides a surface mining resource accurate positioning method, which relates to the field of mining, and comprises the following steps: obtaining the average grade of a sample of each drill hole in each production step of a mining area; the drill holes with the average grade larger than a first threshold value serve as resource enrichment drill holes; based on the grade interval and the distance between the resource enrichment drill holes, all the resource enrichment drill holes in each production step are divided into a plurality of ore body groups; dividing the reserve boundary of the ore body group on each production step according to the distance between the drill hole adjacent to the ore body group on each production step; according to the method, the system, the equipment and the medium for accurately positioning the open-cast mining resources, accurate positioning, closer to the actual field production, of the ore bodies on all the steps is achieved, and accurate positioning of the ore bodies on all the steps is achieved. And a more scientific design basis is provided for open-cast mining.

This invention discloses a big data-driven optimization method and system for tailings dam recovery schemes, relating to the field of mineral resource recovery and intelligent optimization technology. The system's operation includes: constructing a detailed three-dimensional digital model of the dam area; conducting value zoning evaluation to delineate high-value recovery zones and low-value replacement zones; implementing surface mining and pipeline transportation of high-value zones using a floating sand mining platform; simultaneously filling low-value materials into the goaf to maintain stress balance; and dynamically regulating the hydraulic system based on intelligent monitoring data of the entire dam area to ensure the safety of the dry beach length and phreatic line. The system comprises six modules: multi-source data acquisition, digital modeling, intelligent zoning evaluation, recovery operation execution, synchronous filling and reinforcement, and dynamic monitoring and balance control. This application achieves synergistic optimization of efficient high-value tailings recovery and dam structural safety through spatial replacement and dynamic balance mechanisms.

The application discloses a mining method for open-pit mine, which comprises the following steps: performing overall perforation on the blasting pile of open-pit mining, performing secondary ore circle on the blasting pile after the test result is obtained, optimizing the blasting sequence according to different types of ores or waste rocks and the free surface of blasting, performing regional blasting according to the blasting sequence, achieving the purpose of sub-blasting, creating conditions for sub-shovel and sub-loading, and reducing the loss and dilution rate of mining.

The invention discloses an electric control method and an electric control system for cutting pick replacement of an open-cast mining machine, and belongs to the technical field of coal mining equipment. According to the electric control method, the operation box controls the motor to drive the cutting pick roller to rotate, then the controller controls the cutting pick replacing tool to replace damaged cutting picks, traditional manual operation is replaced, the cutting pick replacing tool greatly reduces the manual operation intensity, the replacing time of a single cutting pick is shortened, the replacing efficiency is effectively improved, and meanwhile the replacement cost is reduced. According to the method, a front safety barrier is constructed through forced safety logic that a toolbox is opened to trigger a sensor, the sensor transmits a first signal to a controller, and the controller responds to and controls a mining machine to stop. When a worker opens the tool storage box and prepares to replace cutting picks, the system automatically stops the mining machine, the risk that a roller rotates accidentally or parts are operated mistakenly due to the fact that a motor and a hydraulic system are started due to misoperation in traditional manual replacement is avoided from the source, and the personal safety of the worker during short-distance operation is guaranteed.

The invention discloses an underwater cluster type green mining system and method, and relates to the technical field of deep sea mining, and the underwater cluster type green mining system is composed of a wave energy power generation device, a storage cabin, an energy storage ball, a collecting and processing device, an underwater mining vehicle and a mining ship. The wave energy power generation device captures wave energy and stores the wave energy in an energy storage ball on the seabed, the energy storage ball supplies power to the collecting and processing device through a cable, the collecting and processing device wirelessly charges the underwater mining vehicle through a wireless charging transmitting end and a wireless charging receiving end, and the underwater mining vehicle collects minerals and sends the minerals to the collecting and processing device. And the ore is conveyed to a storage cabin on the sea surface through an ore lifting vertical pipe and a conveying pump and collected by a mining ship. The wave energy power generation device captures renewable wave energy and replaces diesel oil for power generation, electric power supply of a sea surface mining ship is not needed, an underwater mining vehicle and a collecting and processing device are deployed on the seabed, mining operation is prevented from being affected by sea surface extreme weather, and uninterrupted green mining all the year round is achieved.

The invention relates to a simulation method designed to provide an immersive experience to users in virtual environments in which heavy machinery is used, for example the mining, agriculture, port, maritime, electrical or construction industries. The method includes virtual reality anchor markers for positioning the user inside the compartment of a piece of heavy machinery or any type of structure, and comprises precisely simulating operation in underground and open-pit mining environments, agricultural fields and large constructions or movements of earth, without including sophisticated hardware other than a virtual reality headset.

The present invention relates to method for preparation of surface mining, said method comprising the steps of: capturing an image of a surface mining area comprising a bench, a crest of bench and a face of bench, defining, with a first software means, a virtual crest of bench from said captured image, wherein said virtual crest of bench is an approximation of the crest of bench in said captured image, generating, with a second software means, a position of at least one drill hole on said bench based on at least said virtual crest of bench.

The utility model discloses a drainage device for open-cast mining, which belongs to the technical field of drainage equipment and comprises a floating plate, a drainage mechanism is arranged on the inner side of the floating plate and comprises a water pumping pipe movably mounted on the inner side of the floating plate, a connecting pipe is connected to the outer wall of the top of the water pumping pipe, and the drainage device further comprises a positioning mechanism slidably connected with the floating plate. The positioning mechanism comprises a plurality of cutting rods slidably connected with the floating plate, a positioning plate is mounted among the cutting rods, a filter frame is connected to the bottom of the floating plate, and the bottom end of the water pumping pipe is located on the inner side of the filter frame. Through the arrangement of the floating plate and the drainage mechanism, the drainage mechanism is installed on the floating plate and can directly float on the water surface to pump water, the drainage mechanism can automatically descend along with the descending of the water surface, the water pumping pipe can always keep the depth deep into the water, the height does not need to be manually adjusted, and the water pumping pipe cannot be directly embedded into an ore bed to cause blockage; and through the arrangement of the positioning mechanism, the floating plate can be prevented from floating at will to affect drainage.

The invention relates to the technical field of equipment maintenance management, and discloses a maintenance management method and system for open-cast mining equipment, and the method comprises the steps: collecting vibration operation parameters of the open-cast mining equipment based on a time period; performing periodic change analysis on the vibration operation parameters in each time period, and calculating an abnormal change value of the open-cast mining equipment in each time period; performing curve fitting on all the abnormal change values to obtain an abnormal change value curve, processing the abnormal change value curve, and calculating an operation abnormal coefficient of the open-cast mining equipment; according to the relation between the operation abnormity coefficient and the preset operation abnormity coefficient, whether maintenance management needs to be carried out on the open-cast mining equipment is judged, and the maintenance management method can deeply integrate vibration parameter time sequence analysis, dynamic abnormity quantitative evaluation and intelligent decision judgment. Abnormal fault accurate identification and accurate maintenance of open-cast mining equipment faults are realized, so that the equipment reliability is improved, the maintenance cost is reduced, and safe production of mines is guaranteed.

The present application relates to the technical field of coal mine geological data analysis, and specifically discloses a coal mine geological data analysis method based on three-dimensional modeling technology and a storage medium, which comprises the following steps: mine three-dimensional model construction, front mining wall danger analysis, mine surface mining danger analysis, roof stratum mining danger analysis, side wall mining danger analysis, and mine mining danger grade evaluation; the present application comprehensively analyzes the mining safety from four angles of the front mining wall, the surface, the roof stratum and the left and right side walls of the mine, improves the comprehensiveness of the mine mining safety analysis, analyzes the mining safety of the surface layer according to the surface deformation and the surface water pressure, improves the accuracy of the mining safety analysis of the surface layer, analyzes the mining safety of the roof stratum according to the rock thickness change and the overburden pressure change, and reduces the risk of mine collapse in the mining process.

The invention provides a surface mine transportation channel based on edge diversion, belongs to the technical field of surface mining transportation, and solves the problems that the mining quantity is large, the transportation efficiency is low and the traffic safety risk is high. The first connection cutting and the second connection cutting are arranged at the edges of the two ends of the mining horizontal operation platform respectively; and each of the first connection cutting and the second connection cutting comprises an inlet section horizontally connected with the upper part, a straight connection section connected with the edge of the mining horizontal operation platform, and an outlet section horizontally connected with the lower part. According to the method, the prepared mining quantity of the stope center is released, the resource recovery rate and economic benefits are improved, and meanwhile the passage capacity and the transportation safety are improved.

This invention discloses a surface mining intensity index calculation model based on mining parameters. It uses mining width, mining depth, loose layer thickness, mining face thickness, and mining speed as factors to evaluate surface mining intensity. A 3x3 Boltzmann calculation model is constructed to obtain a surface mining intensity coefficient, which is then used as an index to measure surface mining intensity. This invention, by considering four mining parameters—mining thickness, mining depth, working face width, and working face advance speed—to obtain the surface mining intensity coefficient, provides a more comprehensive evaluation compared to previous methods that used mining sufficiency and whether the surface had reached the critical maximum subsidence value.

The invention provides a cutting roller and an open-cast mining machine, and belongs to the technical field of strip mine rock soil stripping equipment.The cutting roller comprises a roller body, a material throwing plate and a cutting tooth seat, the cutting tooth seat and the material throwing plate are both arranged on the side face of the roller body and synchronously rotate along with the roller body, and the cutting tooth seat is used for stripping mineral materials on a working face; the material throwing plate is used for throwing stripped mineral materials, the barrel is selected to be of a structure comprising large-diameter sections and a small-diameter section, the diameter of the large-diameter sections is larger than that of the small-diameter section, the two large-diameter sections are arranged at the two axial ends of the small-diameter section respectively and are coaxially arranged, and the side face of the small-diameter section and the end faces of the two large-diameter sections form a material storage space. The storage space is located in the middle of the barrel and used for temporarily storing the stripped mineral materials, and the problem that the mineral materials are scattered due to the fact that a traditional cylindrical barrel does not have a storage area is solved.