66results 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.

A method of analysing ore, wherein the method includes, during excavation, scanning / sensing ore, by using a sensor. The sensor is located at a position which is (i) spaced from a bucket / shovel of an excavator and (ii) operatively higher relative to the bucket / shovel. The sensor is also directed towards the bucket / shovel, so that the sensor can scan / sense operatively downwardly towards / into the bucket / shovel. The sensor may be secured to, or mounted on, an excavator at a position which is spaced from a bucket / shovel of the excavator.

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 invention relates to a method (50) comprising the steps of: - using a sensor to acquire (110) an image of the sample composed of grains; - applying (120), to the image (1), a convolutional neural network in order to obtain a contour map (C) associating, with each pixel of the image, a value equal to one unit when that pixel belongs to a contour of a grain and otherwise equal to zero; - applying (130), to the contour map (C), a segmentation algorithm in order to obtain a segmented image (S) comprising a plurality of regions, one region being separated from a neighbouring region by a contour having a thickness of a single pixel; and - applying (140), to the segmented image (S), one or more geometric processing operations in order to calculate physical quantities for each grain so as to characterise the lithology of the sample (3).

A coal mine heading face transient electromagnetic advanced detection system provided by the present invention comprises a detection device, the detection device comprises a mounting box, an upper cover, a transmit-receive mechanism and a transient electromagnetic instrument, the transmit-receive mechanism and the transient electromagnetic instrument are arranged on the inner side of the mounting box, the transmit-receive mechanism comprises a folding frame and a transmit-receive coil, and the folding frame comprises a first rotating rod, a movable rod and a U-shaped frame. The movable rods are symmetrically and fixedly mounted at the two ends of a first rotating rod, and the first rotating rod is rotationally mounted in one end of the mounting box. The receiving and transmitting coil can be unfolded through rotation adjustment of the U-shaped frame and the screw tube, the angle of the receiving and transmitting mechanism can be rotationally adjusted through the adjusting mechanism, advanced detection of a coal mine tunneling face at multiple angles is facilitated, operation by a single person is facilitated, time and labor are saved, and through cooperation of the linkage mechanism and the adjusting mechanism, the working efficiency is improved. The transient electromagnetic instrument and the receiving and transmitting coil can be conveniently stored in the mounting box, and the transient electromagnetic instrument and the receiving and transmitting coil can be carried in a storage box.

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 present invention relates to a cuttings collector for obtaining drill cuttings from subterranean wellbores, at least comprising: a) a cuttings collector stem provided with a double helix cutter acting as a conveyor screw having two transport paths, b) an external wall surrounding one of the two transport paths and a lower wall closing said one transport path at the lower end thereof, c) the cuttings collector stem, at the upper end thereof, being provided with a top sleeve having an opening and closing arrangement so that cuttings that are collected can be guided into a desired transport path.

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.

Mining shovel with compositional multispectral and / or hyperspectral imaging and associated methods and systems are disclosed herein. In some embodiments, a mining detection system includes a mining bucket carrying a multispectral and / or hyperspectral imaging system and various sensors directed toward material entering and positioned within the bucket. The bucket can also carry a control enclosure housing image and sensor processing equipment that receives and analyzes the data collected by the multispectral and / or hyperspectral imaging system and the sensors. The disclosed systems and methods can provide real-time compositional analysis of mined materials at the mining site, which can be used to manage a mining field, including generating and transmitting instructions for where the material within the bucket should be delivered based on the data collected from the multispectral and / or hyperspectral imaging system and the sensors.

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 present invention relates to an integrated raise caving mining method for mining deposits in rock mass comprising: developing at least one raise (102,102a-f,202,302a-g,402a-e) in the rock mass (10), developing a drawbell (100,100a-c, 200a-g,300a-f,400a-e) in the rock mass (10), wherein at least a portion of the drawbell is excavated from the at least one raise (102,102a-f,202,302a-g,402a-e), initiating caving through undercutting, wherein at least a part of an undercut is created by gradually expanding the drawbell (100,100a-c, 200a-g,300a-f,400a-e) in upwards direction by excavation, developing at least two drawpoints (106,206,406) into the drawbell (100,100a-c, 200a-g,300a-f,400a-e), wherein the drawpoints (106) are developed from drifts (115,207,407) arranged on different levels and progressively drawing fragmented rock (101) from the at least one drawbell through the drawpoints (106,206,406). 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 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.

This invention discloses a lithology identification system and method for boreholes. The identification method comprises the following steps: S1: Establishing a database of the main properties of the rock; S2: Controlling the drilling assembly to drill; S3: When the drilling assembly reaches the test point, the information acquisition component on the drilling assembly collects the rock information at the test point and feeds it back to the information processing module; S4: The information processing module analyzes the collected rock information to determine the performance parameters of the collected rock sample; S5: Controlling the drilling assembly to continue drilling, and repeating S2-S3 until all test point samples in the borehole have been collected and analyzed. The drilling assembly includes a shell, through which a connecting rod rotatably connects to the shell is installed. A drill bit is fixedly installed at the lower end of the connecting rod, and the drill bit is located below the shell and rotatably connected to it. Several information acquisition components are evenly distributed on the side of the shell. This invention facilitates the identification of rock properties in boreholes and improves the accuracy of lithology identification in boreholes.

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 present invention belongs to the field of intelligent detection technology and specifically discloses an intelligent anchoring system and method for underground engineering. The system includes: a movable chassis, an automatic continuous drilling subsystem arranged on the movable chassis, and an automatic monitoring subsystem and a data analysis subsystem arranged on the automatic continuous drilling subsystem; the automatic continuous drilling subsystem includes: a mechanical arm connected to the movable chassis, a rotating platform connected to the end of the mechanical arm, and a drilling unit connected to the rotating platform; the automatic monitoring subsystem is used to monitor the drilling parameters in real time during the drilling process and transmit them to the data analysis subsystem; the data analysis subsystem uses a rock strength inversion model and a structural surface inversion model to invert the rock strength parameters and rock structural surface characteristics in real time, realize quantitative evaluation of the surrounding rock during the drilling process, and timely anchor the surrounding rock fracture area. The present invention can realize in-situ detection of deep underground engineering, especially deep mines.

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.

Method performed by a system for determining one or more parameters to use for drilling a subsequent hole in a rock to approach a target, wherein the target is related to a subsequent blasting of the rock. The system drills a first hole in the rock. The system collects data relating to the rock, which data is collected from a drill rig during drilling of a first hole in the rock. The system determines at least one drilling parameter, based on the collected data of the rock. The system drills a second hole in the rock using the at least one drilling parameter, thereby approaching the target.

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.

In accordance with an example aspect of the present invention, there is provided a method of active hyperspectral mineralogical sensing during raw ore mining under in-situ conditions, where the method includes irradiating a point on a surface of a mining material with a first broadband light signal having an irradiation range within a wavelength range of about 1350 nm to about 2500 nm, the first broadband light signal having an irradiation range within a wavelength range of about 1350 nm to about 2500 nm, to enable determination of information relating to at least one water-related absorption characteristic, carbonate-related absorption characteristic or hydroxide-related absorption characteristic; receiving a reflected version of the first broadband optical signal, where the reflected version of the first broadband optical signal is a reflection from the mining material at a different wavelength within an illumination range of the first broadband optical signal; determining a reflection spectrum for the point of the mining material based on the reflected version of the first broadband light signal; and further determining the information relating to at least one water-related absorption characteristic, carbonate-related absorption characteristic or hydroxide-related absorption characteristic based on the reflection spectrum; and performing qualitative and quantitative mineralogical analysis based on the information relating to at least one water-related absorption characteristic, carbonate-related absorption characteristic or hydroxide-related absorption characteristic.

To provide information that is useful for adjusting construction plans according to the hardness and softness of the ground and a state of soil.SOLUTION: A model processing unit refers to drilling data showing distribution of drilling input energy for each drilling point, identifies change points where the amount of change in the drilling input energy in the excavation direction is greater than a predetermined change amount threshold, and determines a boundary surface passing through change points where a change trend of the drilling input energy is common among three or more drilling points. The embodiment of the present application can be realized by any form, including an information processing device and an information processing method.SELECTED DRAWING: Figure 2