438results about "Earth drilling and mining" patented technology

A wellbore temperature optimization and predication method integrating numerical models and machine learning includes the following steps: establishing a wellbore-formation transient heat transfer model, obtaining an initial data set composed of relevant parameters, normalizing the initial data set, training a wellbore temperature prediction model by using a random forest algorithm, then optimizing the hyperparameters of the random forest algorithm by using a genetic algorithm, performing global optimization by using an annealing algorithm to obtain the optimized wellbore temperature and related parameters, calculating the wellbore temperature by substituting the optimized parameters into the wellbore-formation transient heat transfer model, and performing comparative verification on the optimized wellbore temperature and the calculated wellbore temperature.

The invention discloses a coal mine underground auxiliary transportation control system based on multi-source data fusion, and relates to the technical field of coal mine underground work transportation control. The multi-source heterogeneous data comprises a ground attachment coefficient, a coal seam inclination angle, a vehicle state and a roadway environment parameter; according to the method, multiple sensors are arranged on a roadway of a mine and a trackless rubber-tyred vehicle, multi-source heterogeneous data of a ground adhesion coefficient, a coal seam inclination angle, a vehicle state and roadway environment parameters related to auxiliary transportation are obtained in real time, and a two-way mapping model of a digital twinning and physical entity is constructed based on the multi-source heterogeneous data; model parameters are updated in combination with federal learning, a closed-loop cyclic feedback mechanism among the running state of a vehicle physical entity, roadway environment influence and a control instruction is realized, a roadway complex change environment can be continuously adapted, and the self-adaption and control learning ability is improved.

The utility model provides a mine branch draw shaft drilling transmission mechanism, belongs to the technical field of mine construction, and is used for drilling a plurality of parallel blast holes in the branch draw shaft construction process. The transmission mechanism comprises a drilling power source and a universal coupling, a plurality of transmission wheels are rotationally arranged on the drilling base plate, and transmission structures are arranged on the peripheries of the transmission wheels; the transmission wheels comprise at least one driving wheel and a plurality of driven wheels, the positions of the driving wheels are fixed, the positions of the driven wheels on the drilling base plate can be adjusted, penetrating shaft holes are formed in the centers of the driven wheels, the sections of the shaft holes are polygonal, and the shaft holes are in sliding fit with the drilling rod. The driving wheel and the driven wheel synchronize power through a transmission structure, and power is transmitted between the driving wheel and the drilling power source through a universal coupling. The mechanism effectively solves the problem of drilling parallel blast holes in branch draw shaft construction, improves the construction efficiency and accuracy, has the advantages of simple structure, convenience in operation, high adaptability and the like, and remarkably improves the automation level of mining.

The invention discloses a coal slipping hole with a multi-stage buffering function, and relates to the technical field of coal mine transportation, the coal slipping hole comprises a feeding port and a communicating pipe arranged at the bottom end of the feeding port, and the communicating pipe can be communicated with a discharging port of a raw coal pulverizer through the feeding port; further, the crushed raw coal can enter an inner cavity of the communicating pipe; the dust removal buffering mechanism is used for removing dust in the crushed raw coal, by arranging the dust removal buffering mechanism, the raw coal fragments discharged from the communicating pipe can be buffered, meanwhile, dust and dust in the raw coal can be absorbed and collected, and dust and dust removal work is achieved along with raw coal accumulation; and the anti-blocking mechanism is used for preventing raw coal from blocking in the dust removal buffering mechanism, and the wrapping box is arranged on the outer surface of the anti-blocking mechanism, so that the effect of multi-stage buffering of the raw coal during raw coal transportation is achieved.

A representation of a rock capillary network is obtained and initial and boundary conditions of fluid flow and mineral precipitation process simulations for the rock capillary network are set. One or more instances of a geometry evolution simulation are performed, each geometry evolution simulation comprising obtaining fluid flow vectors for the rock capillary network, identifying one or more hotspots of nucleation in the rock capillary network, starting a mineral precipitation analysis and estimating a mineral accumulation over a given time interval for at least the identified hotspots of nucleation, adjusting a pore geometry to an effect of mineral precipitation for the rock capillary network, and iteratively repeating each of the one or more geometry evolution simulations until corresponding stop criteria are met for each geometry evolution simulation. A resulting rock under analysis property is computed from an aggregate of results of the one or more geometry evolution simulations.

The aspects of the disclosed embodiments relate to a system for transferring a crawler chassis work machine, wherein the system includesan articulated frame steered transfer vehicle with a tow point, at least one dump hinge implemented with a transverse pivot shaft, a dump bed articulated with thee dump hinge, and a support point placed at a distance below the dump hinge,a low trailer with a platform for supporting the work machine on the low trailer during transfer, and a drawbar for fastening the low trailer pivotally to the tow point for towing the low trailer with the transfer vehicle,a draw arrangement supported to the pivot shaft and the support point non-rotatably with a torque arm included in the draw arrangement, wherein the draw arrangement includes a draw element for connecting the low trailer to the transfer vehicle with the draw arrangement.

The invention discloses an underground material intelligent transportation auxiliary system based on magnetic navigation and an AGV. The underground material intelligent transportation auxiliary system comprises a navigation system, a safety monitoring system, a dispatching system and a control system. The navigation system is used for outputting positioning information data of the traction machine head and transmitting the positioning information data to the control system. The safety monitoring system is used for transmitting obstacle signal data, gas concentration data and mine car load data to the control system. The dispatching system is used for outputting a traction machine head dispatching instruction to the control system. The control system receives traction machine head real-time positioning information data transmitted by the navigation system, obstacle signal data / gas concentration data / mine car load data transmitted by the safety monitoring system and dispatching instruction data transmitted by the dispatching system, and outputs a control instruction to the execution mechanism; the executing mechanism comprises an electric control steering device, an electric control braking device and an electric control accelerator device and is used for executing the control instruction transmitted by the control unit, controlling steering and braking of the traction machine head and driving according to the set speed.

The invention relates to the technical field of mining equipment, in particular to a device and method for power generation through kinetic energy recovery, the device comprises a machine body, a bearing plate and a power generator, and the machine body is a hollow container with an opening in the upper end; the bearing plate is elastically arranged in the machine body through a spring device, and a fixed crushing structure is arranged on the bearing plate; the generator rotor is connected with the bearing plate through the motion conversion structure, so that the linear motion of the bearing plate is converted into the rotary motion of the generator rotor through the motion conversion structure; the fixed crushing structure comprises a mounting part, a retainer and an extrusion part. Through mutual cooperation of the mounting part, the retainer, the first elastic element and other structures, the effect of automatically fixing ores on the bearing plate is achieved, the ores are prevented from being popped out of the machine body by the spring device, and kinetic energy of the ores is fully recycled. And meanwhile, through cooperation of an extrusion part, a retainer, a driving gear, a rack and other structures, the effect of crushing the ore by utilizing kinetic energy of the ore is achieved, and subsequent transportation of the ore is facilitated.

The invention discloses a CNN-LSTM fused geothermal exploitation productivity optimization prediction system, which belongs to the technical field of geothermal productivity prediction, and comprises the following process modules: S1, data acquisition; s1-1, geological exploration equipment; s1-2, geothermal well monitoring equipment is used; s1-3, monitoring equipment of the heating system; s2, data preprocessing; s2-1, a missing value processing unit; s2-2, an abnormal value detection unit; s2-3, carrying out unit normalization; s3, a feature screening module; s3-1, a correlation analysis unit; and S4, a model construction module. The CNN-LSTM fused geothermal exploitation productivity optimization prediction system not only can realize comprehensive data coverage so that the model can accurately capture dynamic changes of a geothermal system, but also can reduce redundant variables through feature screening so as to realize accurate prediction, dynamic optimization and intelligent regulation and control of geothermal exploitation productivity; high-precision, high-efficiency and high-adaptability technical support is provided for scientific development of geothermal energy, and the geothermal energy is promoted to advance towards the predictable, controllable and sustainable direction.

The invention relates to a protection device for preventing iron from being wound into a belt conveyor, and belongs to the technical field of belt conveyors. Comprising a frame, two I-shaped supports and two moving blocks are arranged at the head end of the frame in a sliding mode, two transmission rollers distributed up and down are rotationally arranged between the two I-shaped supports, an adjusting roller is rotationally arranged between the two moving blocks, and a loading frame is arranged between the upper ends of the two I-shaped supports; the left side and the right side of the head end of the frame are each fixedly provided with a fixing base, a row of supporting rollers are arranged in each fixing base in a sliding mode, and a first linkage mechanism is arranged between the supporting rollers and the loading frame. A second linkage mechanism is arranged between the I-shaped bracket on one side and the moving block; the problem that coal accumulation is formed at the machine head end of the belt conveyor when supporting materials are detached at present is solved.

A system for managing well site operations comprising a well site operations module, a chain of blocks of a distributed network, and a sensor bank and control module. The operations module generates earth model variables using a physics model, well log variables or seismic variables, or both, and a trained AI / ML algorithmic model. The chain of blocks comprises a plurality of subsequent blocks. Each subsequent block comprises a well site entry and a hash value of a previous well site entry. A well site entry comprises transacted operation control variables. The well site operations module generates production operation control variables or development operation control variables from earth model variables. The well site entry can also include transacted earth model variables and sensor variables. The sensor bank and control module provides well log variables and the operations module couples control variables to the control module to control well site equipment.

The present application relates to roadway rescue technical field, especially in a kind of roadway rescue equipment material collaborative equipment, solve the prior art is to separate equipment and material transport, material is mainly pipeline, this traditional transport mode, it is not convenient for fast transport, and then greatly reduce the efficiency of material and equipment transport problem.A kind of roadway rescue equipment material collaborative equipment, including frame, the inner side of frame is fixedly connected with support plate, and the top of support plate is fixedly connected with several bearing frames.The way proposed in the present application uses clamps to hold the equipment securely, which can improve the stability of the equipment. At the same time, the pipes can be placed on the arc-shaped plate in the frame, which can carry the pipes. The press plate can be used to stabilize the pipes. The track wheels can be used to transport the equipment and pipes simultaneously in the roadway, which greatly improves the efficiency of transportation.

The invention relates to the technical field of engineering resource configuration optimization, in particular to a tunnel construction electric machine sectional type mechanical optimization configuration method, which comprises the steps of determining a charging adaptation value of a charging pile to an electric machine based on the battery capacity of the electric machine and the output power of the charging pile; based on the drilling footage of each cycle and the section area of the tunnel, calculating the total slag removal amount of each cycle of the tunnel; calculating the dumper times per cycle based on the total ballast discharge amount per cycle and the single loading capacity of the dumper; determining a single operation cycle of the dumper based on the transportation distance, the dumper speed and the loading and unloading time; determining the number of the dump trucks based on the single operation cycle; according to the dumper times per cycle and the dumper number, the dumper round-trip times are calculated and determined; the installation position of the charging pile is determined, and the electric machinery is charged in sequence according to the flow rhythm; according to the method, the tunnel muck removal efficiency is effectively improved, and meanwhile, the accuracy of segmented mechanical optimization configuration of the tunnel construction electric machinery is improved.

A movable meeting platform for a tunnel comprises a slope trolley, a slope track, a flat trolley, a high platform and a meeting track, the tunnel track is arranged on the tunnel, the slope trolley and the flat trolley are movably arranged on the tunnel track, the slope track is arranged on the slope trolley, the high platform is arranged on the flat trolley, and the meeting track is arranged on the slope trolley. The meeting track is arranged on the high platform, and the slope track is in butt joint with the meeting track. According to the utility model, the slope trolley and the flat trolley are arranged, and the slope trolley and the flat trolley can move by utilizing the original track so as to realize the integral movement of the meeting platform, so that the meeting platform can be moved to other positions of a tunnel for use without repeated assembly and disassembly, thereby effectively improving the construction efficiency, shortening the construction period and saving the construction cost; in addition, the original track in the tunnel does not need to be dismantled, and therefore waste of manpower and material resources caused by dismantling of the original track is avoided.

Techniques for measuring well systems using tube waves may include performing a simulation of a stage of the well system based, at least in part, on stage design characteristics. The techniques may further include determining expected stage characteristics based, at least in part, the simulation. The techniques may further include generating measured stage characteristics based, at least in part, on a tube wave signal corresponding to a tube wave that occurred in the well system. The techniques may further include determining at least one stage efficiency metric based, at least in part, on the expected stage characteristics and the measured stage characteristics.

The invention discloses a solid potassic salt mine underground screening and crushing integrated ore storage bin system, and belongs to the technical field of solid potassic salt mine mining. The system is composed of a roadway type raw ore bin, a feeding chamber and a vertically-arranged screening and crushing chamber. The raw ore bin is communicated with the main transportation roadway and is internally provided with a bulldozer; the feeding chamber is provided with a surge bin and a screw feeder; a linear vibrating screen and a double-geared-roller crusher are arranged in the screening and crushing chamber. The core of the method is that oversize coarse grain materials are returned to a surge bin through an oversize transfer belt conveyor to form closed-loop crushing circulation, and it is ensured that the ore removal granularity is smaller than or equal to 20 mm. The problem that sylvite ore is prone to deliquescence and hardening is fundamentally solved through the roadway type ore storage bin, underground storage, screening and crushing integrated operation is achieved, the ore directly enters an ore dressing, decomposing and crystallizing workshop after being lifted to the ground, the ground ore dressing links are reduced, occupied ground sites are reduced, the working efficiency and the system reliability are improved, and the production cost is reduced. The method is especially suitable for efficient mining of deliquescent solid potassic salt ore.

A fully-mechanized coal mining hydraulic support transfer device comprises a supporting seat used for bearing a disassembled fully-mechanized coal mining hydraulic support, two opposite indicating grooves are formed in the supporting seat, the placing position can be determined based on the indicating grooves when the disassembled fully-mechanized coal mining hydraulic support is placed on the supporting seat, and a plurality of wheels and a plurality of supporting plates are arranged at the bottom of the supporting seat. The supporting base is provided with two opposite vertical plates in the advancing direction of the supporting base, the supporting plate and the vertical plates extend towards the lower side of the supporting base, and gaps exist between the supporting plate and the ground and between the vertical plates and the ground. The placing position of the disassembled fully-mechanized mining hydraulic support can be determined according to indication of the indication groove, it is guaranteed that the gravity center of the disassembled fully-mechanized mining hydraulic support is located at a proper position, and the stability of the transfer device is enhanced.

The utility model provides a chain wheel type electric garbage cleaning transfer trolley. The transfer trolley comprises a flat plate supporting frame and a muck hopper arranged on the flat plate supporting frame, chain type walking mechanisms are symmetrically arranged on the two sides of the flat plate supporting frame, and a driving position and an operation table are arranged on the flat plate supporting frame. The chain walking mechanism comprises a walking driving mechanism, a walking chain, a walking beam fixed to the side face of the flat plate supporting frame and a plurality of chain riding wheels rotationally installed on the walking beam, and the walking driving mechanism comprises a driving motor and a main driving wheel installed at the output end of the driving motor. The walking chain is arranged outside the main driving wheel and the chain supporting wheels in a sleeving mode, and the main driving wheel and the chain supporting wheels are in transmission connection through the walking chain. The garbage truck can stably walk on the hollowed-out bottom surface of the box culvert, is not clamped in the hollowed-out area of the bottom surface of the box culvert, does not turn over, can guarantee normal transportation of garbage, improves the garbage transportation efficiency, and accordingly improves the construction efficiency.

This utility model discloses a chute liner for mining, comprising a steel plate. The bottom of the steel plate is cast with low-carbon alloy steel, and the upper part is cast with high-chromium alloy. Hard alloy rods are embedded within the high-chromium alloy. Both the steel plate and the low-carbon alloy steel have an arc-shaped structure. During liner casting, the steel plate needs to be embedded within a foam-made mold layer, and the surface of the steel plate needs to be ground and pickled to ensure it is rust-free. This invention solves the problem that many current large-scale mine chute liners are produced using only high-chromium cast iron. The bottom of the chute liner and the chute body are both arc-shaped, and if the fit between the liner and the chute body is not tight, voids will occur. The liner is easily cracked under the impact of stones, requiring the addition of filler during installation, increasing the installation difficulty. Furthermore, high-chromium cast iron has high wear resistance but poor machinability.

The invention belongs to the technical field of underground roadway pipeline installation, and particularly relates to a robot suitable for coal mine underground roadway pipeline installation, a translation power source is fixed on a transport vehicle chassis, and the translation power source drives a movable sliding table to reciprocate in the direction perpendicular to the traveling direction of a transport vehicle through a translation transmission mechanism; the rotating power source is fixed to the movable sliding table and drives the vertical lifting mechanism to rotate through the rotating transmission mechanism. One end of the forking clamping hand is rotationally connected with the output end of the vertical lifting mechanism, the other end of the forking clamping hand is a forking pipeline clamping end, the inclined mechanism is installed on the vertical lifting mechanism, the output end of the inclined mechanism is connected with one end of the forking clamping hand, and the forking clamping hand is driven to drive a clamped pipeline to do pitching motion; temporary brackets are symmetrically arranged on the front side and the rear side of the translation mechanism and fixed to a transport vehicle chassis. The device has the characteristics of small structural space and wide moving range.

The invention relates to the technical field of transportation equipment accessory devices, in particular to a mining transportation device and a transportation method thereof.The mining transportation device comprises a mounting plate and folding assemblies, and the folding assemblies are evenly mounted on the mounting plate; the folding assembly comprises an overturning mechanism, buckling assemblies, an extending device, a stabilizing structure and a supporting assembly, a shaft seat is arranged on the mounting plate, the overturning mechanism penetrates through the shaft seat and is rotationally connected with the mounting plate, the buckling assemblies are uniformly mounted on the overturning mechanism, and the bottom end of the extending device is connected with the top end of the overturning mechanism. The top end of the stabilizing structure is connected with the bottom end of the mounting plate, and the top end of the supporting assembly is connected with the bottom end of the mounting plate.

The invention discloses a natural caving mining method continuous transportation system, and relates to the technical field of mining, the natural caving mining method continuous transportation system comprises a fixed frame, a mixed conveyer belt and a small ore conveyer belt, and further comprises a damping guide mechanism arranged on the fixed frame, a first rotating mechanism arranged on the fixed frame, a connecting support column and a support beam, the second rotating mechanism and the T-shaped sliding groove are arranged on the supporting beam, the moving assembly is arranged on the supporting beam, and the driving mechanism, the large ore conveying belt and the conveying rollers are arranged on the moving assembly; the mixed ore is conveyed to one end close to the conveying roller through the mixed conveying belt, and the small ore falls off through a gap between the conveying roller and the mixed conveying belt under the action of gravity and falls on the small ore conveying belt below; and the large ore blocks continue to move forwards and are guided to the large ore conveying belt by the conveying rollers to be transferred. Separation and transportation of large and small ores are achieved, small ores are prevented from entering a coarse crushing link, and therefore energy consumption is reduced.

The utility model discloses a detachable anchor net transport vehicle which comprises a flat car body, the flat car body comprises a fixed supporting plate and a movable supporting plate, a main sliding rail is arranged on the inner side of the fixed supporting plate, and a sliding block is arranged on the outer side of the movable supporting plate. Four movable stand columns are arranged above the flat car body, and cross beams are connected between the adjacent movable stand columns. A baffle is connected between the flat car body and each cross beam, and one end of each baffle is hinged to the corresponding cross beam. The upper surface, located in the containing space, of the flat car body is provided with a pair of storage racks in parallel, and a plurality of vertically-arranged anti-skid nails are evenly distributed on the pair of storage racks. The width of the flat car body can be adjusted according to the length of a carried anchor net. Meanwhile, the anchor net is arranged on the storage rack in the containing space defined by the movable stand columns, net edges are prevented from hurting vehicle coupling personnel, limiting is conducted through the anti-skid nails, and the overall stability and safety in the transportation process are improved.

This invention discloses a sealing device for underground conveyor belt ventilation doors in coal mines. It includes a conveyor belt passing through a ventilation door wall, with a sealing device installed at the opening of the ventilation door where the conveyor belt passes through the ventilation door wall. The sealing device includes a fixed frame, with a lower baffle plate at the lower end of the fixed frame. The lower baffle plate has a through hole for the return conveyor belt. A follow-up adjustment component is installed at the lower part of the upper baffle plate to adjust the sealing distance according to different cross-sectional heights of the material in the conveyor belt. This invention, by installing a control follow-up adjustment component at the lower part of the upper baffle plate of the conveyor belt ventilation door sealing device, which can adapt to changes in the height of coal on the conveyor belt, precisely adjusts the sealing distance based on real-time changes in the pressure difference of the intersecting roadway. This fundamentally solves the problem of material blockage on the conveyor belt during coal transport, maximizing the sealing of coal and achieving stable ventilation operation in the intersecting roadway.

The invention relates to a mining unit support carrying robot which comprises a unit support carrying arm vehicle set, the unit support carrying arm vehicle set comprises a first walking unit, the first walking unit is provided with a carrying mechanical arm, the carrying mechanical arm comprises a vertical lifting arm, and the bottom of the vertical lifting arm is connected with the first walking unit; the top of the vertical lifting arm is connected with a horizontally-arranged lateral arm, the bottom of the vertical lifting arm is connected with the first walking unit through a rotating mechanism, or the top of the vertical lifting arm is connected with the lateral arm through the rotating mechanism, the lateral arm comprises a fixed arm, and the two ends of the fixed arm are connected with side arms in a telescopic mode or connected with the side arms in a swinging mode. According to the carrying robot, the two unit supports can be consigned or hoisted at the same time, the carrying procedure of the unit supports can be simplified, the carrying efficiency of the unit supports can be improved, and intelligent control can be achieved.

The invention relates to a hydrate exploitation tubular column mechanical analysis method and device based on an actual structure and a marine environment load, a medium and equipment. The method comprises the steps that a hydrate exploitation tubular column is simplified according to actual working conditions; establishing a hydrate exploitation string motion differential equation by adopting a Hamiltonian variation principle; according to the basic parameters of the marine environment and the actual configuration parameters of the hydrate exploitation pipe column, calculating and analyzing by adopting a Morison equation to obtain a marine environment load and a load borne by the hydrate exploitation pipe column, and substituting the marine environment load and the load borne by the hydrate exploitation pipe column into a motion differential equation of the hydrate exploitation pipe column; and converting the motion differential equation of the hydrate exploitation tubular column after the marine environment load and the load borne by the hydrate exploitation tubular column are substituted into a kinetic equation of the hydrate exploitation tubular column which can be iteratively solved by a program, and obtaining the mechanical property response of the hydrate exploitation tubular column through coupling iteration.

The invention is suitable for the technical field of automatic control of mining auxiliary transportation equipment, and provides an underground monorail crane predictive control method and system based on a digital road spectrum, and the method comprises the following steps: obtaining a position and a road spectrum; a parameter online identification step; a target speed dynamic correction step; a composite torque instruction generation step; a driving execution and braking cooperation step; the method has the beneficial effects that speed self-adaptive correction is realized through road spectrum pre-reading and parameter online identification, and the smooth torque is output in combination with composite predictive control, so that pure-electric-drive stable speed regulation of the monorail crane is realized. According to the scheme, instability slipping under complex working conditions is effectively overcome, the safety risk that mechanical braking intervention is triggered due to the fact that the speed is out of control is avoided, and the response speed, the operation stability and the intrinsic safety level of a whole machine system are remarkably improved.

The invention discloses a method for realizing ore removal and transportation of trackless equipment in an open stope subsequent filling mining method, which comprises the following steps of: 1) after shoveling ores in a stope ore collecting trench through a stope ore removal access, loading the ores into an ore transportation truck in a pit of a truck ore loading point at a communication port of a stope ore removal roadway and a stope transportation roadway by a carry-scraper; (2) after the in-pit ore transporting truck is filled with ore, the in-pit ore transporting truck runs through a series of roadways, the ore produced in the upper middle section is transported to a mining area concentrated draw shaft to be unloaded, and the ore produced in the lower middle section is directly transported to a mine main draw shaft to be unloaded; (3) ore in the mining area concentrated draw shaft is transported to the mine main draw shaft to be unloaded through an in-pit ore transporting truck at the lower middle section; 4, the ore in the mine main draw shaft is finally lifted to the earth surface through the main vertical shaft skip bucket. According to the method, the number of the draw shafts in the stope is greatly reduced, the height of the draw shafts is reduced, the mining preparation engineering cost is reduced, and the impact damage degree of falling of the ore in the draw shafts to the shaft wall is reduced.

The invention provides a double-locking control method for a hydraulic lifting gap bridge. According to the double-locking control method for the hydraulic lifting gap bridge, zero falling risk of the reversed loader pedestrian gap bridge under the condition that a hydraulic system fails or is powered off can be achieved, and the operation safety and the system stability are remarkably improved through a double-redundancy mechanism of hydraulic locking and electromagnetic locking and high-precision closed-loop control.