47 results about "Rock fragment" patented technology

The invention relates to the field of tunnel blasting quality monitoring, and discloses an SAM model-based tunnel blasting gravel morphology automatic identification and analysis system and method, and the system comprises an image collection unit, an intelligent triggering unit, an auxiliary illumination unit and a central processing and control unit which are installed at the top of a tunnel. The method comprises the steps of detecting a transport vehicle in real time through a laser distance sensor serving as an intelligent triggering unit, and judging whether the vehicle is in a full-load broken stone state or not according to a distance threshold value; after confirmation, the camera and the light source are automatically triggered to complete image acquisition; the central processing and control unit calls a pre-trained SAM visual model to carry out panoramic instance segmentation on the collected images, an effective broken stone mask is extracted through a multi-stage post-processing algorithm, the equivalent physical diameter of each broken stone is calculated, and finally statistical analysis is carried out and a report is generated. According to the method, unattended operation and intelligentization of blasting rock particle size analysis are achieved, a model does not need to be trained for specific working conditions, and the analysis result is objective and accurate.

The utility model relates to the technical field of geological exploration, and discloses a drilling device for geological exploration, which comprises a working frame, the four connecting plates are fixedly connected to the four side surfaces of the working frame; the four fixing nails penetrate through the top faces of the four connecting plates in a sliding mode and extend to the positions below the four connecting plates, and a protection assembly is arranged on the inner side of the working frame. A drilling assembly is arranged in the protection assembly, the protection assembly comprises a protection frame, a sliding groove is formed in the top face of the working frame in a penetrating mode, and the bottom end face of the protection frame slidably penetrates through the top face of the working frame and extends into the sliding groove. Through the protection assembly, a first electric push rod is used for driving a supporting plate to ascend and descend, so that a protection frame slides in a sliding groove, the protection frame and a working frame block splashing substances such as broken stones drilled by a drill rod, the situation that surrounding workers are injured due to splashing of chippings is avoided, and potential safety hazards are reduced; and the safety of the device during drilling in geological exploration is improved.

A monitoring system for a working machine includes a measurement data acquisition unit configured to acquire measurement data of a ground surface on which a working machine is traveling; a state discrimination unit configured to distinguish a working state of the working machine; and a detection control unit configured to initiate a first process with respect to a rock fragment on the ground when the working state is distinguished as the first state, and to initiate a second process, different from the first process, when the working state is distinguished as the second state.

This invention relates to the field of coal mining technology, and more particularly to a personal protective device (PPE) for underground operations, comprising a drive base, a support frame, a lifting platform, a first protective component, and a second protective component. When in the protective state, the first and second protective components are in contact; when in the working state, they are separated. The advantages are that the cooperation between the drive base and the support frame allows the support frame to move along the length of the drive base; the lifting platform can lift workers to the working position on the tunnel roof, avoiding physical fatigue caused by prolonged overhead work. The first and second protective components can switch between the protective and working states: in the protective state, they are in contact to form a top protective structure, effectively shielding against falling rocks or broken rock fragments from the tunnel roof; in the working state, they are separated to create operating space, facilitating normal roof work for workers.

This invention provides a PDC single-tooth rock-breaking experimental device and a method for analyzing the rock-breaking mechanism. The experimental device includes a rock-breaking device body, a PDC tooth cutting depth adjustment mechanism, a cutting speed adjustment mechanism, and a cutting force measurement mechanism. The cutting speed adjustment mechanism can adjust the cutting speed of the rock sample; the rock-breaking device body is used to fix and install the cutting depth adjustment mechanism; the cutting depth adjustment mechanism can clamp the PDC tooth and precisely control its inclination angle and cutting depth; the cutting force measurement mechanism can monitor the cutting force on the rock sample. The method includes the following steps: setting parameters such as cutting depth, cutting speed, and inclination angle; monitoring the cutting force and recording the dynamic rock crushing process; sieving and collecting rock fragments, determining the mass fraction of different groups of rock fragments, and preliminarily determining the ductile-brittle crushing mode of the rock based on the distribution pattern of the rock fragments. This invention has the advantages of precisely controlling the cutting depth, PDC tooth inclination angle, and cutting speed.

The invention belongs to the technical field of mine geological exploration, and relates to a mine geological rock crushing and sampling device which comprises a mounting pipe, a mounting plate is slidably connected to the inner side of the mounting pipe, a crushing cone is arranged on the end face of the mounting plate, a screw hole is formed in the crushing cone, a screw is in threaded connection with the interior of the screw hole, and the other end of the screw is fixedly connected with the mounting plate. An anti-splashing assembly matched with the crushing cone is arranged on the mounting pipe, a pop-up assembly matched with the mounting plate is arranged in the mounting pipe, a locking mechanism matched with the pop-up assembly is arranged in the pop-up assembly, and a grip is fixedly connected to the outer side of the mounting pipe; the anti-splashing assembly is used for preventing rocks from splashing and collecting rock particles, and the anti-splashing assembly further comprises a crushing mechanism. A crushing point is covered with the collecting shell, so that crushed rocks cannot be splashed outwards, and the problem that the splashed rock fragments are extremely prone to causing personal injury to operators can be effectively solved.

The invention discloses a high-pressure water jet drilling method and nozzle based on authigenic abrasives, and relates to the field of geological drilling equipment.The nozzle of a double-layer structure comprises a nozzle inner sleeve and a nozzle outer sleeve which are coaxially arranged together in a sleeved mode, at least one sand suction hole is formed in the side wall of the nozzle outer sleeve, and the front end of the nozzle inner sleeve is located in the nozzle outer sleeve; a confluence area is formed at the outlet of the nozzle jacket; the sand suction holes are communicated with the confluence area to generate a siphonic effect, external rock debris is sucked into the confluence area and mixed with a high-speed water column, and then the rock debris is accelerated to form high-speed abrasive water jet to impact the rock surface. Abrasive water jet is formed by self-generated rock debris of the drill bit, mechanical, hydraulic and abrasive triple rock breaking is achieved by combining rotation of the drill teeth, and the drilling speed and the rock breaking efficiency are greatly improved; the double-layer structure nozzle modular design is adopted, the structure is compact, assembling and maintaining are rapid and convenient, ground complex abrasive adding equipment is not needed, local materials are used, and zero-cost abrasive supply is achieved.

The invention discloses coal seam CO2 phase change perforation fracturing anti-reflection gas extraction equipment and method, and relates to the technical field of coal mine gas prevention and control. The device comprises a device body, a coal clearing mechanism is arranged at the top of the device body and used for clearing and scraping coal rock fragments on the inner wall of the hole, and meanwhile a collecting mechanism is arranged below the coal clearing mechanism and used for collecting the cleared coal rock fragments. The coal cleaning mechanism comprises a movable pipe rotationally mounted in the equipment body; through the coal cleaning mechanism, a threaded rod can be driven to drive a movable ring to move, so that a rotating rod, a connecting pipe and a conical rod enter a hole, then a movable pipe is driven to rotate, the rotating rod, the connecting pipe and a cleaning scraper are driven to rotate through a limiting groove and a limiting plate, coal rock fragments on the inner wall of the hole are scraped, and the conical rod can push the coal rock fragments in the hole during resetting; and the coal rock fragments on the inner wall of the hole are effectively cleaned, abrasion or damage caused by contact of the air bag and the coal rock fragments in subsequent operation is avoided, the blasting effect of the subsequent fracturing pipe is guaranteed, and therefore gas is better extracted.

The application relates to the technical field of civil engineering materials, and discloses a filler for red-layer soft rock roadbed and a preparation method thereof. The method comprises raw material pretreatment, step-by-step composite mixing, stabilization treatment and vibration compaction forming. Through accurate progressive control of the step-by-step composite mixing process, mechanical interlocking fusion of coarse aggregate strengthening components and red-layer soft rock fragments is first realized, then an active curing agent is introduced to activate deep reaction, and finally molecular-level coating of a hydrophobic modification material is realized, so that the problem of weak interface bonding caused by uneven mixing of components in traditional processes is solved, a continuous three-dimensional network structure is formed in the filler, and the overall deformation coordination and structural compactness are improved; through dynamic balance of temperature field distribution, the risk of molecular chain rupture caused by heat accumulation in local areas is inhibited, so that the filler still maintains stable hydrophobic properties and volume integrity under an extreme dry-wet cycle environment.

This utility model relates to the technical field of soil drilling construction, and in particular to a borehole wall protection device for collapsed and fractured rock formations in geological drilling. It includes a jetting cylinder and a rubber plug. The jetting cylinder is fixed at one end in the axial direction, and a reverse drill bit is provided at the other end. Multiple grouting holes are opened on the jetting cylinder. After the grouting device is connected to the drill rod, the rubber plug is in a compressed and expanded state. This utility model can perform wall protection in deeper boreholes, thereby reducing problems such as rock fragments falling out and causing drill bit jamming, and improving the borehole success rate.

This invention relates to the technical field of drilling equipment and its application, specifically a full-well mechanical energy specificity drilling device and its application method based on drilling data. The device includes a cylinder, a drill bit, and a fixed base. A base is mounted on the upper part of the drill bit, and the fixed base is parallel to the outer side of the base. The upper part of the fixed base is fixedly connected to the cylinder via a connecting rod. An inner seat is mounted on the outer side of the base. Multiple push rods are spaced circumferentially around the outside of the fixed base, and vertical grooves corresponding to the push rods are spaced circumferentially around the inner seat. The push rods pass through the vertical grooves from top to bottom. This invention, by setting a fixed base on the drill bit and designing push rods, a top head, a linkage mechanism, and a long rod, allows the long rod to be positioned within the gaps between the breaking teeth, thereby pushing away stuck rock fragments, preventing the gradual accumulation of rock fragments, ensuring that the drilling efficiency of the drill bit does not decrease, and ensuring normal drilling progress.

The present invention discloses a rock fragment lithology analysis method based on a multi-level fusion image algorithm and X-ray diffraction. The method includes: S1: acquiring rock fragment image data at different resolutions; S2: generating a multi-level rock fragment image feature matrix; S3: preliminarily generating a lithology classification result; S4: generating supplementary data for X-ray diffraction analysis; S5: fusing the supplementary lithology analysis data with the preliminarily generated lithology classification result to ultimately generate a comprehensive lithology classification result; S6: inputting the comprehensive lithology classification result into a dynamic adaptive analysis system, which adaptively adjusts the analysis strategy based on the complexity of the rock fragment sample and optimizes the parameters of the dual-path convolutional neural network model and multimodal analysis algorithm through real-time feedback and learning mechanisms; S7: outputting an analysis report containing mineral distribution, crystal structure, and comprehensive lithology classification results. The present invention improves the classification accuracy of different types of rock fragment samples by approximately 15%.

A method includes taking at least one image of a plurality of returned rock fragments from a wellbore using a camera, analyzing the at least one image with an image analysis program to detect a caving in the plurality of returned rock fragments, constructing a model of the caving, and incorporating the model of the caving into a finite element geomechanics model of the wellbore using a meshing program to create an adjusted model of the wellbore.

A monitoring system for a working machine includes a measurement data acquisition unit configured to acquire measurement data of the ground on which the working machine travels; a measurement data adaptation unit configured to adapt at least part of the measurement data based on a distance from the working machine; and a rock fragment determination unit configured to determine the presence or absence of a rock fragment on the ground in the adapted measurement data.

The utility model provides a broken rock formation easy to return type reamer, which comprises a guide head, a drill bit body and a connecting cylinder, which are coaxially arranged. The guide head and the drill bit body are provided with multi-stage cutting tooth devices, wherein the guide cutting teeth at the front end of the guide head can be accurately positioned and preliminarily break rocks, the front cutting teeth at the upper end of the drill bit body are densely distributed to efficiently break rock layers, the rear cutting teeth at the lower end cut the rock fragments in the hole and the deformed hole wall during back drilling to break the jam. The drill bit body and the guide head are provided with annular slag discharge grooves on the outer sides, which form a spiral slag discharge channel in cooperation with the flushing holes on the body to improve the slag discharge efficiency. The cutting teeth are detachably connected with the tooth holes through threads, which facilitates replacement and maintenance. The coaxial integrated structure and the high-strength material design reduce the eccentric wear and prolong the service life. The utility model realizes efficient drilling and smooth back drilling in the broken rock formation, significantly improves the operation efficiency, reduces the equipment loss and has good engineering application value.

The invention discloses a method for calculating an optimal ultra-deep coefficient in cut blasting based on an ultra-deep blasting theory in the technical field of ultra-deep cut blasting. The method comprises the following steps: firstly, analyzing a mechanical equilibrium relationship in a movement process of rock fragments in a blasting groove cavity; according to the calculation method, the hole digging depth and the ultra-deep coefficient required by the blast hole can be quantified, the dynamic resistance in the groove cavity can be calculated after the rock mass to be blasted is broken, and the optimal ultra-deep value under different hole depths can be verified through a contrast test, so that the hole digging depth and the ultra-deep coefficient of the blast hole can be calculated. Theoretically calculating an ultra-deep coefficient setting reference under the limit equilibrium state of crushing and throwing, due to the fact that when the method is used for determining slotting blasting parameters and technologies, interference of human experience value taking on blasting parameter and blasting technology selection is reduced, the method can quantitatively analyze the blasting hazard effect, and the blasting quality is improved. The effect of a blasting scheme is measured by using the broken lumpiness of rocks after blasting and circulating footage, and for blasting in various complex environments, the depth of a blast hole is accurately calculated by calculating an ultra-deep coefficient, so that a proper blasting design scheme is more accurately selected.

The disclosed technology relates to an artificial rock formation designed to resemble natural sand, coral, and sediment reef rock, composed of bonded aggregate mix particles. The aggregate mix consists of sand, crushed coral, crushed seashells, rock fragments, or a combination thereof, which are bonded together into larger shapes using a bonding agent, while maintaining a visible granular structure. The resulting formation exhibits a free-form or naturally irregular surface, determined in general by the spray pattern and by the fact that some particles are not fully encapsulated by the bonding agent. The artificial rock does not require large structural components for stability and retains the natural appearance of its constituent materials without visibly encapsulating a bonding layer. The final product may be used for aquariums, decorative applications, ensuring a realistic texture and structure suitable for various ecological and ornamental uses.

Techniques for determining a rock fragment size and size distribution include determining rock fragment parameters associated with a well systems. The techniques further include determining a fractal dimension based, at least in part, on the rock fragment parameters. The techniques further include determining a rock fragment size distribution based, at least in part, on the fractal dimension.

The utility model relates to the field of coal mines, in particular to a drilling well with a slurry solid-liquid separation function, which comprises a drilling platform. The drilling platform further comprises a filtering box, a filtering frame, a rotating shaft, a first transmission disc and a transmission assembly, the filtering box is installed on the left front side of the upper surface of the drilling platform, and the filtering frame is arranged in the filtering box; through the arrangement of the filter box and the filter frame, when the drilling platform works, a generated slurry and rock debris mixture can be discharged into the filter frame through a pipeline, rock debris in the slurry and rock debris mixture is filtered through the filter frame, and then the first transmission disc is driven to rotate through the transmission assembly; and the first transmission disc can drive the rotating shaft to rotate when rotating, so that the left end of the filtering frame rotates, the filtering frame has a dumping action, a worker can conveniently clean rock debris in the filtering frame, the purpose of pretreating a mixture of slurry and rock debris is achieved, and the follow-up operation burden of the centrifugal vibrating screen is relieved.

The utility model relates to the technical field of drilling equipment, in particular to a protective device for geological exploration drilling. The device comprises a shell, a liquid outlet and a slag outlet are formed in the side wall of the shell, a circular truncated cone base is fixedly arranged at the top of the shell, a threaded hole is formed in the circular truncated cone base, a threaded sleeve is arranged in the threaded hole, and a center hole is formed in the threaded sleeve; a rotary sleeve is rotationally connected to the circular truncated cone base, two placement bases are fixed to the rotary sleeve, the two placement bases are both movably connected with holding blocks, and rolling wheels are installed on the two holding blocks; the threaded sleeve is located above the two enclasping blocks, and the rotary sleeve is fixedly connected with a material cleaning plate. The protection device for geological exploration drilling can prevent slurry from flowing and scattering and rock debris from splashing, has a good protection effect, and can prevent the working environment from being damaged; the material cleaning plate is driven by the drill rod to clean rock debris efficiently and conveniently, manpower is saved, no extra power device needs to be arranged, the structure is simple, and implementation is easy; when rock debris is cleaned, the drill rod can work normally, and the drilling efficiency is guaranteed.

The invention relates to the technical field of mining, and discloses a surface collapse range prediction and control method, which comprises the following steps of: constructing a rock stratum motion calculation model based on a Lagrange element and discrete element coupling method, and simulating a conversion and evolution process of a stope overburden stratum from a continuous medium to a discontinuous medium; a model constitutive relation is set according to actually-measured rock mass mechanical parameters, the chamber excavation process is simulated in a unit deletion mode, and the rock stratum motion state and the earth surface displacement field are obtained through cyclic calculation of the modules; determining a slump boundary and a slump angle according to the calculated earth surface displacement field, and predicting an earth surface slump range based on the slump angle; according to the critical discrete body column supporting principle, the collapse pit in the prediction range is filled with discrete bodies, and the edge wall rock mass slice falling is controlled by maintaining the height of the critical discrete body column. The prediction result is accurate, effective control can be carried out, and normal production of the mine and the safety of the surrounding environment are guaranteed.

The present application relates to the field of geological drilling technology, and discloses a kind of based on intelligent perception and the prevention of sticking pipe system and control method of the coordination of fragment capture-transportation-rolling, realize the efficient safe removal of annular bulk fragment and the independent prevention and control of sticking risk.The present application acquires multi-source signal by multi-source fusion perception short section in real time, and the downhole intelligent control unit autonomously distinguishes hole wall instability and bulk rock fragment sticking risk;When sticking hazard occurs, carry out drilling fluid circulation preliminary chip removal first, and if the risk is not removed, drive annular fragment screen capture assembly to expand, and intercept oversized rock fragments exceeding screen aperture.Subsequently, the drill pipe is lifted and the hard rock section with complete well wall is identified, and the crushing roller is pressed against the rock mass in the hard rock section to achieve rolling and crushing relying on the rotary power of the drilling machine.

This invention discloses a rock-breaking sampling device for asteroids and its usage method. The rock-breaking sampling device includes a mobile platform, a rock collection component and a thermal stripping component installed at the front end of the mobile platform, and a solar panel installed at the rear end of the mobile platform. The thermal stripping component includes a microwave generator, a waveguide, and a microwave irradiation plate connected in sequence. The microwave irradiation plate thermally strips the rock fragments located at the front end of the mobile platform to form stripped rock fragments. The rock collection component includes a jet curtain pipe, a rock collection pipe, a rock collection box, an air pump, a second control valve, an air storage tank, a first control valve, and an air compressor arranged in sequence along the airflow direction. The exhaust port of the air compressor is connected to the front end of the jet curtain pipe through a pressure-resistant pipe to form a circulating airflow. This invention satisfies the requirements of continuous and effective crushing of asteroid rocks under conditions of equipment miniaturization and low power; and ensures long-term, high-volume continuous mining operations during a single spacecraft launch.

The invention provides an apparatus for preventing surrounding loose rock fragments from falling or collapsing into a bore hole during drilling and immediately after removal of a drill string from the bore hole. The apparatus includes bore hole sleeve for a bore hole drill, the sleeve including a tube member adapted to be coupled to a mast of a mobile bore hole drill and to be positioned within the collar region of a bore hole, the tube member including a longitudinal internal passage for receiving a drill string therethrough and an external surface for facing outwardly against a wall of the bore hole.

This utility model discloses an excavator and its dual-bucket cylinder protection device. The dual-bucket cylinder protection device includes a protective cover connected to the bucket head via a first fixing component and a track connected to the cylinder via a second fixing component. The protective cover is positioned above the piston rod. Slide grooves are provided on both sides of the track. Sliding blocks matching the slide grooves are provided on the inner walls of both sides of the protective cover. The sliding blocks are slidably connected to the slide grooves. The first fixing component includes a first support frame fixed to both sides of the protective cover via a first fastener. A first fixing frame is fixedly connected below the first support frame via a third fastener. The second fixing component includes a second support frame fixed to the track via a second fastener. A second fixing frame is fixedly connected below the second support frame via a fourth fastener. This device effectively blocks mineral and rock fragments splashed in the mining environment, preventing the piston rod from being hit or scratched, achieving dynamic protection of the piston rod throughout its stroke, and significantly reducing the risk of surface damage.

The present invention belongs to the field of shale oil exploration technology and discloses a method for finding oil-rich strata in terrestrial shale oil layers based on the paleomagnetic characteristics of rocks. The present invention utilizes the correlation between volcanic sedimentary materials and oil and gas distribution in shale oil layers, thereby using the paleomagnetic characteristics of shale samples as the connection point between volcanic activity and organic matter enrichment, guiding the rapid and accurate positioning of organic-rich strata in shale. Since the magnetic susceptibility test does not require rock powder, only about 10 g of rock fragments are required, and about 30 samples can be tested in 1 hour, the machine hourly fee is 3,000 yuan / hour, and each sample is about 100 yuan. Therefore, the use of the method of the present invention can save a lot of time and testing costs. It is conducive to the testing of a large number of samples and is applied to the selection of organic-rich strata in the early stages of exploration.

A method for depth determination of drilled cuttings is disclosed. Tracers are injected and transported downhole along the mud flow (204, 205) and adhere to cuttings. Cuttings impregnated with tracers are detected at the surface (108) based on molecular weight, emission wavelength or radio frequency features used to encode the tracers. When a specific batch of tracers is released into the mud, the identification code identifies the depth of the drill bit. In addition to mud properties, flow rate, drilled volume and rate of penetration, formation characteristics and well specifications, detection data is transmitted to and analyzed by a tracer analysis and control engine (202). The tracer analysis and control engine (202) controls an internet of things controller (203) that adjusts parameters of a tracer injection pump (206) to enable intelligent controlled release, thereby optimizing the depth characterization process.

A rock sample analysis tray for visual and / or instrumental analysis of crushed rock samples is provided. The analysis tray includes a plurality of compartments having side walls spanning between a closed end and an open end. Each compartment includes opening at the open end and tapered wall sections extending from the side walls to the opening. The opening includes a lip. The analysis tray is configured to be attached to a specimen tray that is commonly used to transport and store rock samples. The analysis tray includes an attachment mechanism to attach the analysis tray to the specimen tray. Upon attachment, the lip of each opening nestles into a corresponding compartment in the specimen tray such that samples contained in the specimen tray can be easily transferred to the analysis tray for measurements and easily returned to the specimen tray thereafter.

The invention discloses a method for evaluating rock crushing efficiency based on mass percent determined by critical size of rotary cutting debris, which specifically comprises the following steps: step 1, carrying out a rotary cutting experiment, deducing an analytic relational expression of drilling pressure F1 and cutting force F2, and obtaining a relation between Z and cutting depth h according to the analytic relational expression of F1 and F2, Mohr-Coulomb criterion and fracture mechanics theory; 2, according to the relation between Z and the cutting depth h, the relation between the critical rock debris size Z and the cutting force F2 is obtained, and therefore the critical rock debris size Z is obtained; and step 3, classifying the rock debris according to the critical rock debris size Z obtained in the step 2 to obtain mass percentages of different types of rock debris, obtaining a rock debris crushing index RCB according to the mass percentages, and evaluating the rock crushing efficiency by using the RCB. The problem that in the prior art, the debris generation mechanism cannot be revealed from the angle of machine-rock interaction, and consequently evaluation on the rock crushing efficiency is inaccurate is solved.