39results about "Testing machines" patented technology

The invention discloses a relay bin device capable of intelligently detecting and adjusting the mineral height and a deep-sea mining system.The relay bin device comprises a relay bin, a height adjusting unit, a detecting unit and a self-cleaning unit, the height adjusting unit comprises a shell assembly, an air bag assembly and a piston assembly, the shell assembly is arranged in the relay bin, and the air bag assembly is arranged in the relay bin; the air bag assembly is arranged in the shell assembly, a high-pressure air chamber is formed in the air bag assembly, the movable end of the piston assembly extends into the high-pressure air chamber and is in sealed sliding connection with the high-pressure air chamber, and the movable end of the piston assembly can move up and down in the axial direction of the relay bin by inflating and deflating the high-pressure air chamber so as to adjust the height of mineral particles; the detection unit comprises a high-pressure waterproof radar and a high-pressure waterproof ultrasonic sensor, and the high-pressure waterproof radar and the high-pressure waterproof ultrasonic sensor are arranged on the two sides of a discharging port of the relay bin respectively; the cleaning end of the self-cleaning unit faces the high-pressure waterproof ultrasonic sensor and is used for cleaning the high-pressure waterproof ultrasonic sensor regularly.

The invention relates to the technical field of civil engineering, in particular to a red sandstone multi-bench combined mechanical cold excavation construction method which comprises the following steps: S1, generating a rock mass model by adopting three-dimensional laser scanning and AI geological analysis, and dynamically optimizing mechanical configuration and excavation parameters by combining a BIM numerical simulation rehearsal bench scheme; accurate rehearsal and parameter optimization of a stair flight scheme are achieved through three-dimensional laser scanning, AI geological analysis and BIM numerical simulation, a scientific basis is provided for construction, dynamic adaptation and process correction of excavation operation are achieved with the help of rock mass hardness sensing, intelligent parameter matching and particle size recognition technologies, the construction efficiency and the crushing quality are improved, and the construction cost is reduced. Real-time monitoring, trend prediction and grading response of slope stability are achieved through a multi-source sensing network, a digital twin model and edge calculation, construction safety is guaranteed, and the intelligent level, operation efficiency and safety controllability of red sandstone multi-bench mechanical cold excavation are remarkably improved.

The present invention relates to an integrated raise caving mining method for mining deposits in rock mass comprising: developing at least one raise in the rock mass, developing a drawbell in the rock mass, wherein at least a portion of the drawbell is excavated from the at least one raise, initiating caving through undercutting, wherein at least a part of an undercut is created by gradually expanding the drawbell in upwards direction by excavation, developing at least two drawpoints into the drawbell, wherein the drawpoints are developed from drifts arranged on different levels and progressively drawing fragmented rock from the at least one drawbell through the drawpoints. The present invention also relates to use of an integrated raise caving mining method for mining deposits. The present invention also relates to an integrated raise caving mining infrastructure, a machinery, a control system of an integrated raise caving mining infrastructure, and a data medium.

The invention relates to a coal rock recognition system based on dust sampling, a coal mining machine and a method, the coal rock recognition system comprises a sampling pipe, a negative pressure module, a separating and drying module, a material bin, a detection pipe, a pump unit and an LIBS detection device, the negative pressure module is used for providing negative pressure for the sampling pipe to suck dust; the separating and drying module is used for carrying out gas-solid separation and drying treatment on the dust; the material bin is used for receiving the dried dust particles; the detection pipe is communicated with the material bin; the pump unit is used for mixing dust particles in the material bin with airflow to form gas-solid two-phase flow; and the LIBS detection device is used for detecting dust particles in the gas-solid two-phase flow. The dust near the cutter head of the coal mining machine is directly sampled, and the dust is subjected to gas-solid separation and drying treatment, so that laser can be prevented from directly acting on the gas-containing dust, the detection safety is ensured, dust particles are not interfered by water mist and gas during detection, and the detection accuracy is improved. And the dust amount required by LIBS detection can be stably supplied.

The present disclosure provides a method and device for monitoring generation of coal mine vibration and its response to vibration wave, the device comprises a frame, a vibration triggering device, an surface building model, an surface monitoring system, and an underground monitoring system. The present disclosure can simulate the mechanical process and phenomenon of high-energy and strong vibrations triggered by the fracture of the high-level thick-hard rock layers.

The invention relates to the technical field of hydraulic directional drilling machines, in particular to a stable-transmission hydraulic directional drilling machine for a coal mine, which comprises a drill bit and further comprises a crawler-type power source and a hydraulic directional drilling machine, and the drilling power source comprises a push rod used for pushing the drill rod to advance. Through a coal seam hardness detection mechanism, when a coal seam becomes soft, a permanent magnet plate drives a conducting strip to slide through the change of the overflow hydraulic oil amount of a hydraulic motor, the resistance of a slide rheostat is changed, a PLC detects current to judge the coal seam softening degree, and then the power of a first hydraulic pump and the power of a second hydraulic pump are adjusted to change the propelling and rotating speed; when the coal seam hardens, high-pressure hydraulic oil pushes the piston head to squeeze redundant hydraulic oil into the detection box, the moving distance of the squeezing plate is detected through the infrared distance meter, the PLC calculates and judges the coal seam hardening degree, the power of the hydraulic pump is adjusted to achieve parameter adjustment, and then real-time change can be achieved according to the coal seam hardness.

The invention discloses a shale bedding development degree quantitative characterization method which specifically comprises the following steps: step 1, acquiring a full-diameter shale core, and determining a bedding surface of the full-diameter shale core; step 2, processing the full-diameter shale core to obtain a plunger rock sample or a square rock sample, and marking a bedding direction for the plunger rock sample or the square rock sample; step 3, drying the plunger rock sample or the square rock sample; 4, measuring the size and weight of the plunger rock sample or the square rock sample, and measuring the longitudinal wave propagation time of sound waves in the plunger rock sample or the square rock sample through sound wave measuring equipment to obtain the longitudinal wave speed; and step 5, acquiring the development index of the rock core bedding based on the longitudinal wave velocity. The method can be widely applied to characterization of the rock bedding development degrees under different scales, and the judgment efficiency of the rock bedding development degrees is improved.

The application discloses a deep stratum detection "underground+ground" fusion data processing method, which comprises the following steps: collecting underground multi-source data by using an intelligent probe rod, processing the data into original digital signals, saving the original digital signals by using an underground memory, and acquiring continuous depth data by using a ground equipment; compressing and modulating the original digital signals at a high code rate or a low code rate; transmitting the signals in the form of power carrier in a through-cable drill rod by power driving, and then outputting the signals, or first transmitting the signals in a first through-cable drill rod, then re-collecting the signals in a relay short section, and then transmitting the signals in a second through-cable drill rod and outputting the signals; when the transmission line is disconnected, synchronizing and fusing the corresponding data between the data and time and the corresponding data between the detection depth and time, and finally outputting the data of the transmission line as the final data output. The method can collect large amounts of data, has many types and strong visibility, and can more intuitively reflect the underground conditions.

The invention relates to a machine chisel (100), a retaining device (300), a removing system (600) and a method. The machine chisel (100) can comprise: a chisel tip (102); a shank (104), which extends away from the chisel tip along a longitudinal axis (107) of the machine chisel; and a reference body (106), which has at least one scale (112) which is made of a magnetisable material and can be detected by sensors, the reference body, the shank and the chisel tip being rigidly connected to one another. The retaining device (300) can comprise: a chisel holder (302) having an opening (316) to receive a machine chisel; a locking device (202, 402) which is designed to make a form fit with the machine chisel received in the opening, thereby limiting movement of the machine chisel; a receiving region (320) to receive a portion of the machine chisel, the accommodating region being exposed relative to the opening; and at least one sensor (306), which is disposed on the receiving region and is designed to contactlessly detect the portion extending into the receiving region, and / or the reference body (106) being designed to be connected to the shank (104) with a form fit.

A kind of thick soft coal seam working face roof following excavation along floor mining process method, coal seam thickness and mechanical parameters are obtained by advanced detection technology, and based on coal seam thickness and mechanical parameters, target thick soft coal seam is screened, at the same time, working face size is set, roof following of airway and floor along of working face layer position arrangement mode are determined, and the geometric parameters of layer position transition are calculated;In layer position transition section, gradually down to the floor from the roof layer position of airway along the tendency direction of working face, smoothly transition to the floor layer position of working face;In the airway advanced floor section, gradually down to the floor along the advancing direction of working face, realize the strike smooth connection of airway and working face mining layer position;According to the layer position requirement of roof following excavation and floor mining, fully mechanized caving mining is implemented, and the mining ratio and caving step distance are controlled.The method can realize safe and efficient mining of thick soft coal seam.

The present application relates to a kind of coal rock identification system based on dust sampling, coal winning machine and method, including sampling tube, negative pressure module, separation drying module, material bin, detection tube, pump unit and LIBS detection device, negative pressure module is used to provide negative pressure suction dust for sampling tube;Separation drying module is used to carry out gas-solid separation and dry processing to dust;Material bin is used to receive the dust particle after drying;Detection tube is communicated with material bin;Pump unit is used to make dust particle in material bin and airflow mix and form gas-solid two-phase flow;LIBS detection device is used to detect dust particle in gas-solid two-phase flow.The present application directly samples the dust near the cutter head of coal winning machine, and carries out gas-solid separation and dry processing to dust, can avoid laser directly acting on dust containing gas, ensure the safety of detection, while dust particle is also not interfered by water mist and gas when detecting, and dust amount required by LIBS detection can also be stably supplied.

The invention relates to the technical field of mining, and provides a stope impact risk quantitative dynamic evaluation method and system based on static pre-evaluation and dynamic correction. After a static risk index of stope impact risk is determined through a static pre-evaluation method, multi-source dynamic information of the current state of a stope is obtained; and dynamically correcting the static danger index of the stope impact danger, and finally determining a dynamic danger coefficient of the stope impact danger so as to dynamically evaluate the mine stope impact danger. Therefore, a complete evaluation closed loop of the stope impact danger is formed in the stope impact danger evaluation; the dynamic danger coefficient is dynamically updated along with changes of monitoring data and production activities of the stope, automatic lifting of the stope impact danger level is achieved, and conversion of stope impact danger evaluation from static division to dynamic diagnosis and from qualitative judgment to quantitative calculation is achieved.

This invention discloses a method and system for identifying coal body structure, comprising: determining the coal type of the coal to be evaluated and its corresponding sensitive logging parameter cross-plot; extracting sensitive logging data of the coal to be evaluated based on the sensitive logging parameters corresponding to the coal type; and identifying the coal body structure of the coal to be evaluated using the sensitive logging parameter cross-plot based on the sensitive logging data. This invention improves the accuracy and efficiency of coal body structure identification results.

This application relates to the field of mechanical control technology, specifically to a coal mining machine control method, device, electronic equipment, and medium. A coal mining machine control method is applied in a server of a coal mining machine, which includes a frequency converter and a brake. The method includes: responding to a user's start action of the coal mining machine; acquiring first information; the first information including a first inclination angle of the working face; if the first inclination angle of the working face is greater than a preset first value and less than a preset second value, then calculating a first holding torque based on the first information; adjusting the output torque of the frequency converter based on the first holding torque; when the output torque of the frequency converter is equal to the first holding torque, sending a brake release signal to the brake to allow the coal mining machine to move on the working face. This application calculates the holding torque of the coal mining machine based on the inclination angle of its current position, ensuring that the coal mining machine can move stably on the working face after startup and will not slip.

Provided are an early warning and emergency device for a sudden stress change in surrounding rock and a method of use, which relates to the technical field of underground mining. The device includes a front shell, a rotating body, a rear shell, a driving device, a stress monitoring unit, an acoustic and optical early warning unit, a high-pressure jet mechanism, and a data analysis controller. By using the device of the present disclosure, a cloud map of sudden stress changes in surrounding rock can be formed in real time, timely monitoring can be carried out in a case where the stress in the surrounding rock undergoes a high-intensity sudden change, the self-positioning temporary patrol robot is mobilized to perform temporary support for the sudden stress change point of the surrounding rock and timely transmit a sudden stress change early warning signal to remind nearby workers to evacuate in time.

The application provides a kind of cutting speed control method and system of cantilever type heading machine, belong to coal mine cutting field, cutting speed control method includes: obtaining the image of coal wall to be cut;The edge of the image of coal wall to be cut is detected, and the gray value of edge pixel point is set to 255, the gray value of non-edge pixel point is set to 0, to obtain edge image;The edge image is grid processed, to obtain grid image;For any grid in grid image, according to the gray value of each pixel point in the grid, the geological intensity index value in the grid is determined, which can quantitatively represent the stability of each position of coal rock mass;The preset cutting path of cantilever type heading machine on the coal wall to be cut is obtained;Based on the preset cutting path, according to the geological intensity index value of each grid in the grid image, the rotating speed of the cutting head of the cantilever type heading machine is automatically adjusted, the adaptive energy-saving control of the cutting head of the cantilever type heading machine is realized, and the cutting efficiency is improved.

According to an example aspect of the present invention, there is provided a method for active hyperspectral mineralogy sensing during a Run-of-Mine in field conditions, wherein the method comprises illuminating a point on a surface of a mining material with a first broadband light signal having a range of illumination within a wavelength range of about 1350 and about 2500 nm, to enable the determination of information related to at least one water-related, carbonate-related or hydroxide-related absorbance feature, receiving a reflected version of the first broadband light signal, wherein said reflected version of the first broadband light signal is a reflection from the mining material at different wavelengths within the range of illumination of the first broadband light signal, determining a reflectance spectrum of the point of the mining material based on said reflected version of the first broadband light signal and further determining said information related to at least one water- related, carbonate-related or hydroxide-related absorbance feature based on the reflectance spectrum and performing qualitative and quantitative mineralogy analysis based on said information related to at least one water-related, carbonate-related or hydroxide-related absorbance feature.

The invention belongs to the technical field of coal mine underground hydraulic fracturing, and particularly relates to a hydraulic fracturing real-time control system based on microseism monitoring and an application method. The system comprises a microseism detection device, a data analysis and processing unit, a fracturing pump control system and a feedback adjustment system, in the hydraulic fracturing process, the microseism detection device can capture microseism events generated in the fracturing process in real time and convert energy, orientation and the like of the microseism events into electric signal data; the data are transmitted to a data analysis processing unit, the data analysis processing unit analyzes the crack extension trend and extension strength in the fracturing process in real time, and a hydraulic fracturing parameter adjusting module automatically adjusts the pressure and flow of a fracturing pump and the crack direction according to the data of a pressure sensor, a flow sensor and the like and the calculated data; the hydraulic fracturing effect is optimized, an intelligent closed-loop system of perception-analysis-decision-execution is formed, potential damage to a coal seam structure is reduced, and operation safety is guaranteed.

A system for monitoring a mining operation. The system includes a first sensor arrangement which is positioned at a first location and which is configured to scan / sense part of a portion of ore ("ore portion") at the first location. The system also includes a second sensor arrangement which is positioned at a second location which is different from the first location and which is configured to scan / sense part of at least a sub-portion of the ore portion ("ore sub-portion") at the second location. A processor performs a first characterisation by characterising the ore portion using data obtained from the first sensor arrangement. The processor also performs a second characterisation by characterising the ore sub-portion using data obtained from the second sensor arrangement. The processor then compares the first characterisation with the second characterisation.

The invention discloses an igneous rock distribution range prediction method and system based on multiple integrals and a medium, and the method comprises the steps: determining the general distribution range of igneous rocks, carrying out the whole-region tracking of the top and bottom surfaces, and obtaining an igneous rock top enveloping surface and an igneous rock bottom enveloping surface; the method comprises the following steps: acquiring original seismic data, and performing multiple integration on the original seismic data based on a multiple integration algorithm to obtain a data volume after multiple integration; calculating a transverse gradient attribute based on the frequency-reduced seismic data volume after multiple integration; and according to the transverse gradient attribute, calculating a root-mean-square amplitude attribute between the igneous rock top envelope surface and the igneous rock bottom envelope surface, so that the igneous rock distribution range can be predicted. According to the method, the igneous rock distribution range is quickly and accurately predicted in combination with seismic data multiple integration and transverse gradient attribute methods, and technical support is provided for exploration deployment. The method is particularly suitable for predicting the igneous rock distribution range in a less-drilling-well area.

A system for monitoring a mining operation includes a first sensor arrangement which is positioned at a first location and which is configured to scan / sense part of a portionof ore at the first locati

The invention provides an intelligent vibration isolation efficient self-adaptive vibration cutting robot and a control method thereof. The robot comprises a cutting system, a cutterhead posture adjusting and vibration isolation system, a main control system and an airborne system. The cutting system is integrated with a rock hardness detection device, and rock hardness data are obtained in real time through a detection oil cylinder and a magnetostrictive displacement sensor; the cutterhead posture adjusting and vibration isolating system adopts the combination of an adjusting oil cylinder and a diaphragm type energy accumulator to realize dynamic vibration isolation; and the main control system intelligently identifies rock characteristics based on a BP neural network, matches optimal cutting parameters, and cooperatively adjusts excitation frequency, vibration isolation rigidity and cutterhead attitude through multi-loop PID (Proportion Integration Differentiation) control. Full-process self-adaptive optimization of cutting parameters, rigidity-adjustable intelligent vibration isolation and multi-system cooperative control are achieved, the operation efficiency and reliability are remarkably improved, vibration transmission is effectively restrained, and the method is suitable for complex rock stratum unmanned construction scenes.

The invention relates to the technical field of coal field exploration, and discloses a one-hole multi-purpose exploration method for coal field exploration, which comprises the following steps: acquiring coal samples in a plurality of drill holes, and measuring and recording data such as category, density, volume and the like of the coal samples. The coal samples of the same category are classified into the same category by dividing the first category and the second category of the coal samples, and the coal samples are further divided into a plurality of sub-categories. And calculating the real volume and the carbon content according to the density and the volume ratio of each sub-category. The method further comprises the following steps: comparing the coal samples to be detected, determining the sub-categories to which the coal samples belong, and recording the volume and density data of the coal samples. By improving the utilization rate of coal field drilling, efficient exploration with one hole for multiple purposes is achieved, meanwhile, the coal sample classification precision is improved, resource waste is reduced, and the exploration efficiency and the data accuracy are remarkably improved.

The application discloses a kind of planning shearer mining speed based on dynamic gas geological model: step one: initial gas content database is built;Step two: working face gas content geological model is built;Step three: according to working face gas content test data, working face gas content is formulated according to different RGB color display legend;Step four, according to step legend, the three-dimensional display of gas content model is realized;Step five: the best mining speed of shearer in current position is calculated;Step six: the best mining speed of shearer corresponding to any position point is obtained;Step seven: the best mining speed of all position points is issued to shearer, and shearer is executed according to the mining data issued.The application plans the best mining speed of working face according to the gas geological condition of working face, realizes the safe recovery of working face, and solves the problem that the mining speed of shearer is not matched with the gas geological condition of working face in intelligent mining.

A microwave-disc cutter integrated mechanical continuous mining device and a use method thereof relate to the technical field of rock breaking and comprise an equipment platform, a disc cutter cutting system, a microwave cracking system, a loading device and a cantilever crane, the microwave cracking system and the disc cutter cutting system are fixed on the equipment platform, and the loading device and the cantilever crane are installed at the front end of the equipment platform. A metal mine microwave mechanical longwall mining method is provided, rock breaking is carried out in a synchronous motion mode of microwaves and machines, the microwave cracking mode comprises overall cracking by high-power microwaves and local rapid cracking by a microwave coaxial line arranged in the disc cutter, so that the cutting speed of the ore is greatly improved; the method of cutting the side of the ore body by the disc cutter technology is adopted, the original principle of mechanical rock breaking is changed from the previous compression cracking to tension cracking, and the rock breaking cost is greatly reduced in the principle of rock breaking.

The utility model provides a mine underground cut blasting hole calibration device based on a drill jumbo, and belongs to the field of geotechnical engineering.The mine underground cut blasting hole calibration device based on the drill jumbo comprises a hole calibration device body, a PLC, a signal transmitting unit and a signal receiving unit; through the cooperation of the signal transmitting unit and the signal receiving unit, the position information of the blast hole can be accurately detected and transmitted, so that the position of the blast hole calibration device can be accurately adjusted by the PLC, and marking near a target blast hole is facilitated; meanwhile, according to the fed-back target blast hole length information and the rock mass hardness information detected by the rock mass hardness tester, the PLC determines accurate data, given by the blast hole calibration device, of an agent needed by blasting of the blast hole near the blast hole, and controls the code spraying device to spray the accurate amount of the agent needed by blasting of the blast hole near the blast hole; in this way, follow-up manual filling operation of the blast hole with the accurate quantity of the agents is facilitated.

The present application relates to the technical field of extraterrestrial resource development, in particular to a microwave-mechanical self-adaptive anchoring device for asteroid resource mining. The device comprises a mechanical arm, a microwave generator, an anchoring drill and an anchoring shell. The mechanical arm is internally provided with a microwave transmission channel, and the microwave generator guides the microwave to the anchoring shell through the channel; the anchoring shell is made of microwave absorbing material and can absorb microwave to heat and assist in melting the surrounding asteroid soil. The anchoring drill is driven by a conical structure and a ring-shaped push plate to drive the anchoring shell to drill down synchronously, and the mechanical lower arm is separated after anchoring is completed through a disengaging plate, a disengaging block and a limiting groove. The system identifies the dielectric properties of the asteroid soil through a dielectric detection device, self-adaptively adjusts the microwave working parameters, and realizes closed-loop control of the melting temperature by using a thermocouple. Through microwave melting anchoring, a fused anchoring body is formed in situ, which has the advantages of high anchoring strength, small disturbance to the asteroid, strong environmental adaptability, safe detachment and the like.

The application provides a coal mine tunneling face transient electromagnetic advanced detection system, which comprises a detection device, wherein the detection device comprises a mounting box, an upper cover, a receiving and transmitting mechanism and a transient electromagnetic instrument arranged on the inner side of the mounting box, the receiving and transmitting mechanism comprises a folding frame and a receiving and transmitting coil, the folding frame comprises a first rotating rod, a movable rod and a U-shaped frame, the movable rod is symmetrically fixedly installed at the two ends of the first rotating rod, and the first rotating rod is rotatably installed in the inner side of one end of the mounting box. Through rotation adjustment of the U-shaped frame and the solenoid, the receiving and transmitting coil can be unfolded, the angle of the receiving and transmitting mechanism can be rotationally adjusted through the adjusting mechanism, the coal mine tunneling face can be conveniently detected in multiple angles, one person can conveniently operate, time and labor are saved, and through cooperation of the linkage mechanism and the adjusting mechanism, the transient electromagnetic instrument and the receiving and transmitting coil can be conveniently retracted into the inner side of the mounting box, and the transient electromagnetic instrument and the receiving and transmitting coil can be conveniently stored and carried.

The height adjustment correction method for mine drilling equipment based on vector digitization comprises the following steps: digitizing the geological profile vector map corresponding to the mining area; inputting the digitized image into the adjustment correction device as a standard database, and at the same time, the adjustment correction device enters the working state; the adjustment correction device drives the mine drilling equipment to move towards the mining area, and the detection probe of the mine drilling equipment extends into the mining area for detection; referring to the digitized image in the standard database, combining the detection height set by the detection probe of the mine drilling equipment and the specific position of the mine drilling equipment on the digitized image, the real-time height data is fed back to the adjustment correction device; the detection probe detects the number and type of minerals corresponding to the accurate mining area height and feeds back to the digitized image for supplementary correction.