907results about "Earth drilling and mining" patented technology

The invention discloses a tension optimization control system and method for a tensioning device of an underground coal mine belt conveyor, and relates to the technical field of tensioning device optimization control. The method comprises the steps that S1, multi-source tensioning data are collected in real time, and data preprocessing is conducted on the multi-source tensioning data; s2, predicting a coal flow load based on historical multi-source tensioning data, and taking a dynamic compensation measure for a tensioning device; s3, in combination with the multi-source tensioning data and the coal flow load prediction result, collaborative distribution is carried out on the hybrid execution mechanism, and automatic regulation and control are carried out based on the collaborative distribution result; s4, abnormity is detected in real time based on the multi-source tensioning data, and early warning is carried out; s5, performing safety risk assessment according to the real-time multi-source tensioning data, and taking adaptive regulation and control measures in combination with a safety risk assessment result and an anomaly detection result; the problem that faults are caused due to the fact that high-frequency pulsation and short-time impact of belt tension are difficult to adjust in time is solved.

A method may include: providing one or more inputs to a hybrid data generator, wherein one of the one or more inputs is based at least in part on a wellsite location, wherein the hybrid data generator comprises a large language model, and wherein the large language model is based at least in part on a machine learning algorithm; utilizing an information handling system to generate a cement job design based at least in part on the one or more inputs and the hybrid data generator; performing at least a portion of a cementing operation based at least in part on the cement job design; and collecting at least one measurement from at least one sensor during the cementing operation.

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.

A mining narrow-gauge flat crane comprises a flat car frame and a lifting arm, the lifting arm is installed on the upper portion of the flat car frame, at least two sets of wheel pairs which are arranged in a front-back spaced mode are arranged at the bottom of the flat car frame, the wheel pairs are connected to a rail of a haulage roadway in a sliding mode, and telescopic supporting leg structures are arranged on the front side and the rear side of the flat car frame. The middle of the left side and the middle of the right side of the flat car frame are each provided with a propping column, the two propping columns are arranged in a bilateral symmetry mode, the flat car frame is further provided with a hydraulic pump station and a console, the underground power source provides power for a motor of the hydraulic pump station, and the hydraulic pump station provides hydraulic power for the lifting arm, the telescopic supporting leg structure and the propping columns. And the console controls the lifting arm, the telescopic supporting leg structure and the propping column to act respectively. The lifting device is flexible in lifting position, meets the requirement of lifting at various positions, has a car stabilizing function during lifting, is high in safety, and can greatly reduce the difficulty of manually loading and unloading materials and reduce the labor intensity of workers.

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 invention discloses an underground safety monitoring and polling device, and belongs to the technical field of coal mine safety polling. Comprising a conveying belt body and an inspection robot. A jacking and extending assembly is installed between the inspection robot and the supporting plate, when the detected cracks on the conveying belt body need to be repaired or marked, the jacking and extending assembly drives the supporting plate to descend and abut against the conveying belt body, and the walking conveying belt body drives the inspection robot and the conveying belt body to move synchronously; a cleaning roller is arranged on the other side, close to the supporting plate, of the bottom of the inspection robot, two spraying heads are arranged on the side, close to the supporting plate, of the cleaning roller at equal intervals, and a transmission mechanism drives the corresponding spraying heads to distinguish slight cracks or serious cracks, detected by the inspection robot, on the conveying belt body; according to the invention, respective processing can be carried out according to the crack degree, the detection efficiency is effectively improved, and the problem that an existing robot lacks an effective processing means is solved.

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 small-turning hinged support carrier, and relates to the technical field of carriers, the small-turning hinged support carrier comprises a front frame and a rear frame, the rear end of the front frame is hinged to the front end of the rear frame, the left side of the rear frame is provided with a left swing beam, the left swing beam is provided with a left front wheel and a left rear wheel, the right side of the rear frame is provided with a right swing beam, and the right swing beam is provided with a left rear wheel and a right rear wheel. A front right wheel and a rear right wheel are arranged on the right swing beam, a left steering oil cylinder and a right steering oil cylinder are further hinged between the rear end of the front frame and the front end of the rear frame, a left oil cylinder set is arranged between the left swing beam and the left side of the rear frame and used for adjusting the front-back inclination angle of the left swing beam, and a right oil cylinder set is arranged between the right swing beam and the left side of the rear frame and used for adjusting the front-back inclination angle of the right swing beam. A right oil cylinder set is arranged between the right swing beam and the right side of the rear frame and used for adjusting the front-back inclination angle of the right swing beam. According to the invention, the turning radius can be further reduced, so that the small-turning articulated bracket carrier can pass through a roadway with a smaller turning radius.

The invention belongs to the technical field of coal mine machinery, and discloses a monorail crane falling centralizing device and centralizing method.The centralizing device comprises a fixing plate arranged on the inner side of a ground rail, a transverse moving guide rail, a transverse moving frame, a follow-up mechanism, a longitudinal moving guide rail and two push rods; the transverse moving guide rail is arranged on the fixing plate, and the direction of the transverse moving guide rail is parallel to the direction of the ground rail. The transverse moving frame is in sliding connection with the transverse moving guide rail, and the follow-up mechanism is arranged in the transverse moving frame in a lifting mode. The longitudinal moving guide rail is arranged at the top of the follow-up mechanism, and the direction of the longitudinal moving guide rail is perpendicular to that of the ground rail; the two push rods are vertically arranged at the two ends of the longitudinal moving guide rail respectively and can slide along the longitudinal moving guide rail; the design stroke of the push rod to the center of the longitudinal-moving guide rail is half of the distance between the inner sides of left and right wheels of a mine car The monorail crane falling centralizer can replace manual push-pull centralizing of mine car falling, fast and efficient mine car falling centralizing is achieved, and the transportation efficiency and safety of monorail crane falling are greatly improved.

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 present invention provides an energy-storage emergency power supply and driving control method and apparatus for a mine induction motor hoist. The method comprises: acquiring working states of a mains power loop 1 and a mains power loop 2 in real time; on the basis of abnormal working states of the mains power loop 1 and the mains power loop 2, determining whether to disable a mains power supply mode and enable an emergency power supply mode; enabling the emergency power supply mode, and switching the hoist from mains power supply to emergency power supply; starting hoist auxiliary units and a hoist electric control unit, and determining whether the hoist meets an operation condition; receiving a hoist operation instruction, and on the basis of the operation instruction, controlling the hoist to operate; and exiting an emergency working mode, and switching the hoist from the emergency power supply to the mains power supply. The present invention uses a combination of new energy storage and conversion to replace the original diesel engine power generation system, solving the problem of emergency power supply of a control system for a mine induction motor elevator, allowing for rapid establishment of an emergency rescue hoisting channel, and providing a safety guarantee for mine workers and production.

The invention discloses an underground belt conveyor speed regulation control system and method based on vision assistance, and the system comprises an image collection device which is used for collecting a coal flow image; the ground control center is used for obtaining a coal flow detection result according to the coal flow image; the driving device is used for driving a belt of the belt conveyor to move; the speed regulation control device is connected with the explosion-proof frequency converter, and the speed regulation control device is used for adjusting the running speed of the belt conveyor according to the coal flow detection result; and the comprehensive protection device is connected with the speed regulation control device, and the comprehensive protection device is used for monitoring the running state of the belt conveyor. Real-time coal flow is calculated based on machine vision, and according to the change state of the coal flow, the PLC control unit adjusts the rotating speed of the explosion-proof motor by controlling the explosion-proof frequency converter, so that the running speed of the belt conveyor can be automatically adjusted according to the coal flow, and the optimized energy-saving control of the mine coal conveying system is realized.

A system, for controlling well site operations, comprising a machine learning engine, a predictive engine, a node system stack, and a blockchain. The learning engine includes a machine learning algorithm, an algorithmically generated earth model, and control variables. The learning algorithm generates a trained data model using the algorithmically generated earth model. The predictive engine includes an Artificial Intelligence (AI) algorithm. The AI algorithm generates a trained AI algorithm using the trained data model and earth model variables using the trained AI algorithm. The system stack is communicable coupled to the predictive engine, the learning engine, the blockchain, sensors, and a machine controller. The blockchain having a genesis block and a plurality of subsequent blocks. Each subsequent block comprising a well site entry and a hash of a previous entry. The well site entry comprises transacted operation control variables. The transacted variables are based on the generated earth model variables.

A method and apparatus for evaluating light-weight cement (LWC) bond conditions in production well in presence or absence of the tubing. The apparatus includes a tool string that can be lowered into the casing or the tubing. The tool string includes a segmented transducer ring matrix to excite the surrounding medium resulting in vibrations. The tool string further includes an impedance measurement circuit that can determine natural resonance frequencies of the structural components. The impedance measurement circuit can determine certain non-harmonic resonance mode shapes for mechanical impedance measurements that are sensitive to the LWC bond conditions. A machine learning model can be used for segmented impedance measurements to correct effects from the tubing eccentricity inside the casing. Lab calibration generates bond index mapping table and the field logging impedance measurement data can be processed into the bond indexes to further evaluate LWC bond conditions.

The invention relates to the technical field of coal mine mechanical equipment, and discloses a support carrier for a coal mine narrow roadway, which comprises a carrier body, steering wheels and rear wheels are arranged on the two sides of the carrier body, a traction hanging table is arranged at the front end of the carrier body, a rotating groove is formed in the top of the carrier body, and a mounting groove is formed in the bottom of the rotating groove. A rotating groove is formed in the vehicle body, a rotating structure is arranged in the rotating groove, a power structure for driving the rotating structure to rotate is arranged in the vehicle body, and transfer structures are arranged on the two sides of the top of the vehicle body. The whole structure is low in height, small in size and convenient to use in a narrow roadway, the rotating action of the hydraulic support is achieved through the rotating structure and the power structure which are designed uniquely, the positions of the main supporting frame and the auxiliary supporting frame can be adjusted, and practicability is high.

The invention discloses a virtual angle sensor online measurement method based on a graph neural network. The method comprises the following steps: acquiring an environment magnetic field signal of a magnetometer and a motion attitude signal of an inertial sensor; training to obtain a graph neural network model capable of predicting the incidence relation between the environment magnetic field signal and the motion posture signal; when a drill bit is at a low speed in a drilling detection interval, inputting a collected motion attitude signal of an inertial sensor into the graph neural network model for reverse prediction, and performing compensation calibration on an environment magnetic field signal detected by a magnetometer; and when the drill bit is at a high speed in the drilling detection interval, measuring the drilling environment magnetic field of the drill bit by using the compensated and calibrated magnetometer as the input of the corrected and trained graph neural network model so as to predict the motion attitude of the output drill bit, and correcting the drift error of the inertial sensor. According to the invention, mutual correction of the magnetometer and the inertial sensor is realized, and the problem that errors exist in the magnetometer and the inertial sensor during measurement while drilling is solved.

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 modularized flexible wheel type belt conveyor comprises a vehicle head arranged on the left side, a plurality of modularized vehicle bodies are hinged to the right side of the vehicle head, the modularized vehicle bodies are sequentially hinged end to end to form an inter-module connecting structure, and each modularized vehicle body comprises a front axle and a rear axle which are arranged on the left side and the right side respectively. Steering parts are arranged on the front and rear sides of the lower ends of the front axle and the rear axle respectively, wheels are arranged at the lower end of each steering part, and the steering parts are rotationally connected with the corresponding front axle and rear axle along the vertical axis; a connecting part is arranged between the front axle and the rear axle and comprises a front traction structure and a rear traction structure, the left end and the right end of the front traction structure are hinged to the front end of the front axle and the front end of the rear axle respectively, and the left end and the right end of the rear traction structure are hinged to the rear end of the front axle and the rear end of the rear axle respectively. According to the invention, curve transportation can be realized under the condition that only the vehicle head is used for traction.

The invention relates to the technical field of mine safety equipment, in particular to a stall protection device for a mine trackless rubber-tyred vehicle, which comprises a left stand column and a right stand column, a left fence is arranged on the left stand column, a right fence is arranged on the right stand column, a left cylinder is fixed in the middle of the left stand column, and a right cylinder is fixed in the middle of the right stand column. A U-shaped steel pipe is inserted into every two steel pipes of the left fence and the right fence, the U-shaped ends of the U-shaped steel pipes are located outside the fences, the two ends of the U-shaped steel pipes are fixed in the steel pipes of the fences and connected with steel wire ropes, and the tail ends of the steel wire ropes are connected with dampers on the roadway ground after the steel wire ropes penetrate out of the fences. The lock hooks can hook the U-shaped steel pipes on the left fence and the right fence. When the mine trackless rubber-tyred vehicle stalls, the mine trackless rubber-tyred vehicle collides with the intercepting nets on the left fence and the right fence, the intercepting nets are separated from the left fence and the right fence under the collision condition, and the stalled mine trackless rubber-tyred vehicle is stopped under the action of the damper.

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 cement sheath sealing performance simulation method considering a well wall mud cake and fracturing working condition, which comprises the following steps: establishing a three-dimensional deformable solid model of a borehole, then dividing the model into a sleeve, a cement sheath, a mud cake and a stratum in sequence from inside to outside, and carrying out grid division; material parameters are given to the casing pipe, the cement sheath and the stratum; establishing an element set used for defining a mud cake material, then endowing the element set in a grid of the mud cake, considering the heterogeneity of the mud cake, and obtaining a material parameter of the mud cake based on a Python code; boundary conditions are set, and meanwhile loads are applied to the casing pipe; cohesive units are inserted into the interface of the casing and the cement sheath, the interface of the cement sheath and the mud cake and the interface of the mud cake and the stratum, linear damage evolution is conducted based on Maxs damage, and then the equivalent plastic strain and the micro-gap size of the cement sheath in the load loading process are obtained. According to the method, the real existence condition of the well wall mud cake is considered, and the interface micro-gap development condition of the well cementation two-interface can be simulated.

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.

The invention relates to the technical field of coal mine mechanical equipment, in particular to a scraper conveyor middle trough suitable for a large-mining-height and large-transportation-volume environment, and the scraper conveyor middle trough suitable for the large-mining-height and large-transportation-volume environment is provided with a trough body assembly. The groove body assembly comprises a baffle groove side, a shovel plate groove side, a supporting plate, a bottom sealing plate, a first replacement plate and a second replacement plate, the two ends of the supporting plate are fixedly connected with the baffle groove side and the shovel plate groove side respectively, the bottom sealing plate is located below the supporting plate, and the two ends of the bottom sealing plate are fixedly connected with the baffle groove side and the shovel plate groove side respectively. The two ends of the first replacement plate are detachably installed on the baffle ledge and the supporting plate respectively, and the two ends of the second replacement plate are detachably installed on the shovel plate ledge and the supporting plate respectively. Thus, when the middle plate of the middle trough is abraded, only the first replacement plate or the second replacement plate needs to be detached, then a new first replacement plate or second replacement plate needs to be replaced, the middle plate of the middle trough can be replaced without welding, and the replacement efficiency of the middle plate of the middle trough is improved.

Disclosed herein is a workflow for evaluating the cement between a casing string and the surrounding formation in a wellbore and for determining casing string eccentricity using sector cement bond log (CBL) data. This method involved using a cement bond logging tool with an extended acquisition time window to capture multiple interface echoes. From this sector CBL data, a data matrix of waveform information is generated, with each row representing waveform data from different azimuthal sectors. Through singular value decomposition, the principal components of the matrix are identified. Subsequent component analysis emphasizes significant components of waveforms. The significant waveform components are then used to model waveforms using local cluster modeling. The method proceeds by analyzing decomposed data to pinpoint cement zones, compute an eccentricity index for casing deviation, and detect cement channels.

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 underground conveying monitor for intelligent mining comprises a conveying belt body, sliding grooves are formed in the front surface and the rear surface of the conveying belt body, and a set of electric push rods are fixed to the front side and the rear side of the conveying belt body; the conveying belt is characterized in that the output end of the electric push rod is fixed to one side of the supporting moving roller, a set of water tanks are mounted at the top of the mounting block, and a monitoring body for monitoring materials at the top of the conveying belt body is mounted at the bottom of the mounting block. According to the under-mine conveying monitor for intelligent mining, an elastic air bag is arranged, the outer side of the elastic air bag is extruded through an extrusion mechanism, a water source at the lower end of a water spraying pipe can be extruded through gas, water spraying treatment can be conducted on the water source through the water spraying pipe, and the water source can conduct water spraying treatment on the bottom position of the monitoring body; and dust on the surface of the monitoring body can be cleaned through a water source.

The utility model provides a dumbbell pin and a device capable of dynamically detecting elongation and fracture of the dumbbell pin, which are applied to the technical field of underground detection equipment, the device comprises a detection assembly and a detection line, the detection assembly comprises a gear set and a detection piece, the detection line is wound on the gear set, the detection piece is meshed with the gear set through a detection gear, and the gear set is connected with the detection line. When the detection line deforms, the gear set is driven to rotate to drive the detection gear to rotate, so that the detection piece can monitor the deformation of the detection line. The rotation angle of the gear set is detected through the detection piece, the deformation amount of the detection line is monitored in real time, and therefore the working state of the dumbbell pin is judged, the structure is simple, cost is low, and the situation of communication interruption does not exist.