52 results about "Coal field" patented technology

The present application relates to geological exploration technical field, disclose a kind of thick loess plateau area coalfield 3D seismic exploration method, comprising the following steps: S101, artificial seismic source shooting record and superficial Rayleigh wave detector data are collected;S102, grid division is carried out to target area, and set to be inverted parameter;S103, vertical ray path time estimation, multilayer medium dispersion forward and poststack energy estimation are carried out;S104, according to first wave arrival time observation value, Rayleigh wave observation dispersion curve, theoretical ray path time, phase velocity and poststack energy generates multi-target error function;S105, target area is divided into three subdomains, differential evolution iteration is carried out, until local convergence;S106, establish a plurality of parallel annealing chain, set chain temperature and gradually decrease by chain, optimize to be inverted parameter, output optimal to be inverted parameter;S107, the static correction time difference and absorption compensation coefficient of each acquisition point are calculated.The present application improves coal seam structure imaging precision and exploration data reliability under complex surface conditions.

This invention discloses a method for optimizing and numerically simulating hydrological parameters of coalfield aquifers, relating to the field of coalfield hydrogeological exploration and groundwater numerical simulation technology. The method includes the following steps: Step S1: Obtain drilling monitoring data and historical hydrogeological data from multiple boreholes within the target coalfield area, construct an initial aquifer structure model, and generate an initial hydrological parameter field based on the initial aquifer structure model; Step S2: Based on the initial hydrological parameter field, construct an initial groundwater numerical simulation model, and calibrate and verify the initial groundwater numerical simulation model using preset observation well water level data to obtain a benchmark numerical simulation model; Through distributed fiber optic temperature and strain dual-field monitoring, and coupled Bayesian inversion of heat, solid, and fluid, this method overcomes the limitations of traditional pumping / pressure water tests, which suffer from single-point discretization, time lag, and the inability to obtain only static averages.

The application discloses a coalfield aquifer hydrological parameter optimization and numerical simulation method, relates to the technical field of coalfield hydrogeological exploration and groundwater numerical simulation, and comprises the following steps: step S1: obtaining drilling monitoring data and historical hydrogeological data of a plurality of drill holes in a target coalfield region, constructing an initial aquifer structure model, and generating an initial hydrological parameter field based on the initial aquifer structure model; step S2: constructing an initial groundwater numerical simulation model based on the initial hydrological parameter field, calibrating and verifying the initial groundwater numerical simulation model by using preset observation well water level data, and obtaining a benchmark numerical simulation model; through distributed optical fiber temperature and strain double-field monitoring, thermal, solid and flow coupling Bayesian inversion, the limitations of traditional pumping / pressure water tests, such as single-point dispersion, time lag and only static mean value acquisition, are broken through.

The invention discloses a coal field geology geophysical exploration data acquisition device, and relates to the technical field of coal field geology exploration, the coal field geology geophysical exploration data acquisition device comprises a supporting ring, the top of the supporting ring is fixedly connected with four L-shaped rods, the ends, away from the supporting ring, of the four L-shaped rods are jointly and fixedly connected with a supporting disc, and the supporting disc is located at the top of the supporting ring; through mutual cooperation of a second motor, a drill bit, a hammering disc, an air cylinder and other structures, the hammering disc can be firstly placed on the front side of the top of a supporting ring, a T-shaped plate on the top of the hammering disc is aligned with T-shaped grooves in limiting plates, then the hammering disc is pushed backwards, the hammering disc drives the T-shaped plate to move, the T-shaped plate moves into the T-shaped grooves in the two limiting plates, and therefore the purpose that the T-shaped plate is driven to move is achieved. And a threaded hole in the hammering disc is aligned with a threaded hole in the transverse plate, a threaded rod penetrates through the threaded hole in the transverse plate in a threaded mode and enters the threaded hole in the hammering disc, and further installation of the hammering disc is completed.

This invention discloses a method, apparatus, medium, and equipment for three-dimensional seismic fault identification in coalfields, relating to the field of fault identification. The method includes: acquiring raw three-dimensional seismic data of the area to be measured; denoising the raw three-dimensional seismic data using a deep learning model to determine the denoised three-dimensional seismic data; constructing a ResU-Net model for coalfield seismic fault identification; training the ResU-Net model; using the trained ResU-Net model to perform fault identification on the denoised three-dimensional seismic data, generating a fault probability volume; retraining the trained ResU-Net model using a training set to iteratively optimize the fault probability volume, determining the optimized fault probability volume; and performing fault identification based on the optimized fault probability volume and geological interpretation requirements to obtain the identification results.

The utility model belongs to the technical field of coal field seismic exploration, and particularly relates to a coal field seismic exploration soil hole backfill quality detection device which comprises a probe rod and a handle assembly detachably installed at the top end of the probe rod, a movable column is installed on the inner side of the bottom of the probe rod in a sliding mode, and a pressure sensor is fixedly installed at the top end of the movable column. The other end of the pressure sensor is fixedly installed with a probe rod, a probe is installed at the bottom end of the movable column, a central processing unit with the input end electrically connected with the pressure sensor is arranged in the probe rod, and the output end of the central processing unit is wirelessly connected with a handheld terminal. According to the utility model, the backfill quality can be rapidly detected, the average detection time of the backfill quality of each soil hole is one minute, and the device is small in size, simple in structure, easy to operate, low in manufacturing cost, light in weight, convenient to carry, suitable for field large-scale exploration operation, high in detection efficiency and higher in practicability.

The invention relates to the technical field of mine safety engineering, in particular to mechanical coal field fire extinguishing equipment which comprises a rack sleeve, a hinge end is arranged on the outer cambered surface of the rack sleeve, an abutting end is arranged in the middle of the inner cambered surface of the rack sleeve, a step end is arranged at the position, close to the abutting end, of the rack sleeve, and the inner cambered surface of the step end is sleeved with a sealing cover. The inner arc face of the sealing cover is sleeved with a fire extinguishing fluid conveying cavity, and a pressing sleeve is sleeved between the sealing cover and the fire extinguishing fluid conveying cavity. A conical outer partition cover and an inner arc cover face of the first-stage fire extinguishing mechanism surround a fire extinguishing area, fire extinguishing force can be concentrated, medium loss is reduced, directional conveying of a fire extinguishing medium is achieved through cooperation of a permeation suite and a ventilation sleeve, it is ensured that the fire extinguishing medium accurately acts on the core portion of the fire area, and fire extinguishing efficiency is improved. And a frame structure and a heat insulation cover net of the second-stage fire extinguishing mechanism can complementarily cover the edge and the gap area of the fire area and cooperate with the first-stage fire extinguishing mechanism, the fire extinguishing range is widened, the fire extinguishing efficiency is improved, and fire re-combustion is effectively avoided.

The utility model discloses a rock core collecting device for coal field geological drilling, which comprises a box body unit, the box body unit is used for collecting rock cores, a jacking unit comprises a jacking assembly and a driving assembly, and the jacking assembly is used for lifting one end of a long-strip rock core; the driving assembly is connected with the jacking assembly and used for driving the jacking assembly to ascend and reset. According to the rock core collecting device for coal field geological drilling, by arranging the jacking unit, when a long-strip rock core needs to be taken out, the driving assembly can drive the jacking assembly to ascend, and a supporting block in the jacking assembly lifts one end of the long-strip rock core, so that a certain gap is formed between the rock core and the placing plate, and a worker can easily take out the rock core conveniently; the problems of difficulty in operation and damage to the rock core caused by difficulty in taking out the rock core are solved, and the integrity of the rock core sample is ensured.

The invention relates to the technical field of gas phase medium collection, in particular to a multifunctional adjustable coal field underground gas sampling device which comprises a drilling machine and a sampling barrel, the drilling machine is detachably connected with the sampling barrel, and the drilling machine is used for drilling a hole in the ground of a target layer and downwards conveying the sampling barrel to the target layer after drilling is finished; a sampling channel is formed in the sampling barrel, the bottom of the sampling channel is communicated with a sampling cabin, packers are symmetrically arranged at the top and the bottom of the sampling cabin, and the packers are used for forming a sealing ring between the sampling barrel and a hole wall after the sampling cabin reaches a target layer; one end, far away from the sampling cabin, of the sampling channel is also communicated with a negative pressure collecting mechanism; the negative pressure collecting mechanism is used for generating negative pressure in the sampling channel and storing the collected gas. The accuracy of the collected gas sample can be improved.

The invention discloses an injection and detection separated coal fire crack recognition plugging method and plugging system, and relates to the field of coal field drilling and coal field fire area governance. The plugging method comprises the steps that a drilling network is formed for coal fire area construction, observation holes are selected for combined electro-magnetic scanning, and data vectors before and after tracing medium injection are obtained; reconstructing the three-dimensional conductivity and magnetic conductivity distribution of the underground crack, obtaining the three-dimensional space distribution of the crack, and determining the grouting amount of the tracing plugging material; according to the system, heat dissipation drilling, crack recognition, plugging and depth control are integrated, and the whole process of high-temperature hole forming, tracing injection, electromagnetic scanning, inversion imaging, targeted grouting and effect verification is completed. According to the method, conductivity and magnetic conductivity two-parameter joint inversion is realized, the problems that natural geological anomalies and crack channels cannot be distinguished through single electrical method / magnetic method detection, the number of inversion result false anomalies is large and the like are solved, true three-dimensional and high-resolution stereo imaging of crack space distribution and connectivity is realized, and a high-precision target spot is provided for targeted grouting.

The invention discloses a method for promoting plant growth by utilizing residual heat energy in a coal field fire treatment area, and belongs to the field of heat energy utilization. Comprising the following steps: obtaining a heat conductivity coefficient lambda < soil > of a solid medium in a covering layer material of the coal field fire control area, a permeability coefficient k of the covering layer material and a porosity phi of the covering layer material; obtaining the thickness D of the covering layer material; obtaining heat energy temperature field distribution of the coal field fire control area according to the heat conductivity coefficient lambda < soil >, the permeability coefficient k and the porosity phi; respectively determining thermal gain temperature thresholds of trees, shrubs and plants by adopting a vegetation thermal gain temperature threshold determination method; and analyzing soil temperature distribution characteristics according to heat energy temperature field distribution of the coal field fire control area and the thickness D of a covering layer material, and selecting the most adaptive vegetation for planting in combination with thermal gain temperature thresholds of trees, shrubs and grass trees or planting the most adaptive vegetation after improving an adding structure of the coal field fire control area. The residual heat energy of the coal field fire treatment area can be effectively utilized.

The invention discloses a water-containing coal field exploration detection device which comprises a box body, a material taking opening is formed in the position, close to the bottom, of the front side of the box body, a material discharging opening is formed in the position, close to the top, of the right side of the box body, a T-shaped pipe is arranged at the top of the box body, a reciprocating air cylinder is arranged at the left end of the T-shaped pipe, and a power output shaft of the reciprocating air cylinder penetrates through the T-shaped pipe. According to the invention, through the mutual cooperation of the component metering mechanism, the material shaking mechanism, the feeding mechanism and other components, when a worker puts 1mL of a stock solution on a swing plate through a beaker by using a pipettor, 100mL of dilution water and the stock solution can be automatically mixed, the operation is simple, the operation is convenient, the labor intensity is reduced, the labor intensity is reduced, and the work efficiency is improved. The stock solution and the dilution water are fully and uniformly mixed, so that the uniformity is ensured, and the detection result is prevented from losing significance due to result errors.

The utility model discloses a cement paste stirring device for coalfield borehole hole sealing, including upper cylinder and lower cylinder, the upper cylinder and lower cylinder are all conical, wherein the upper cylinder lower part diameter is greater than the upper part diameter, the upper part diameter of lower cylinder is greater than the lower part diameter, the maximum diameter of upper cylinder is equal with the maximum diameter of lower cylinder, and the height of upper cylinder is lower than the height of lower cylinder, and the upper cylinder and lower cylinder are connected through the connecting flange between. Adopt the same taper upper cylinder and lower cylinder and assemble into the stirring cylinder, and adopt the stirring mechanism that can dismantle, can place to the lower cylinder after can be inverted upper cylinder when transportation, place to the inverted upper cylinder after the stirring mechanism dismantles, can reduce the overall volume of stirring device, convenient transportation can be applicable to the hole sealing cement paste stirring after field drilling operation.

The invention discloses an intelligent temperature measuring method for coal field fire extinguishing advanced detection drilling, an intelligent temperature measuring device for coal field fire extinguishing advanced detection drilling, intelligent temperature measuring equipment and a computer readable storage medium. Two independent temperature sensors are integrated at the end of the probe to synchronously collect temperature information in a drill hole. In the measurement process, the system carries out real-time comparative analysis on data of the two sensors, judges the working states of the sensors according to the deviation degree of the two sensors, executes self-adaptive weighted fusion output when the deviation is in a normal range, and automatically identifies an abnormal sensor and switches to a single-sensor reliable mode when the deviation exceeds a threshold value. In addition, the system establishes a dynamic thermal response compensation model according to thermal inertia parameters of the sensor, corrects a transient measurement value in the moving process of the probe in real time, and outputs a compensated steady-state equivalent temperature. According to the invention, the problems of insufficient temperature measurement reliability and thermal response lag of a traditional single sensor are effectively solved.

The application discloses a water conservation coal mining process evaluation and screening method suitable for Jurassic coalfield, and belongs to the technical field of coal mining. The method solves the problems that the existing evaluation method cannot fully combine the geological characteristics of the Jurassic coalfield, the index weight determination is not scientific enough, and the optimization result lacks robustness test. The main points of the method are to construct a three-dimensional index system including water conservation effect, economic benefit and engineering feasibility, and to include indexes such as separation layer development time sequence matching degree which are aimed at the Jurassic coalfield; after collecting the original data of the selected process, the objective weight is calculated by using the entropy weight method, the coefficient of variation method and the CRITIC method, and then the geometric mean method is used to combine the most weight; the data is processed by dimensionless, the linear weighted comprehensive method is used to calculate the comprehensive evaluation value and sort the optimal process, and finally the robustness of the optimization result is verified through the sensitivity analysis. The method is mainly used for providing basis for scientifically selecting and evaluating the water conservation coal mining process of the Jurassic coalfield mine.

The utility model relates to the technical field of geological exploration sampling, and one embodiment of the utility model provides coal field geological exploration sampling equipment which comprises a rack, a lifting rod, a first motor, a baffle and a fixing mechanism, a spiral drill rod is arranged in the rack, the lifting rod is arranged in the rack through a lifting mechanism and used for driving the spiral drill rod to perform height movement, and the first motor is used for driving the baffle to perform height movement; the first motor is installed on the lifting rod, the output end of the first motor penetrates through the lifting rod and is axially and fixedly connected with the top end of the spiral drill rod, the two baffles are arranged on the rack through the opening and closing mechanism and used for blocking soil on the spiral drill rod, and the fixing mechanism is arranged on the rack and used for fixing the rack to the ground. By means of the technical scheme, the technical problem that in the prior art, when soil is brought out of a hole by a spiral drill rod, soil is prone to scattering around the hole, soil depth information is difficult to correspond, and the sampling effect is prone to being affected is solved.

The invention discloses a coal field underground cavity area tar detection and pollutant degradation collaborative treatment system, which belongs to the field of tar detection and degradation and comprises a detection unit, a data analysis unit, a preparation preparation unit, an injection well unit and a monitoring unit. A three-dimensional space distribution model is generated through multi-source physical field data fusion, a composite carrier is constructed by utilizing microencapsulated bacterial liquid and micro-nano bubbles, and collaborative treatment of chemical oxidation and biodegradation is realized by adopting a staged pulse injection strategy. The system can accurately identify pollution spatial distribution, solves the problem of colonization of strains on hydrophobic surfaces, significantly improves the degradation efficiency of tar pollutants, realizes dynamic optimization of the treatment process through closed-loop monitoring, and has the outstanding advantages of high treatment precision, strong adaptability and low operation cost.

The utility model relates to the technical field of coal field fire extinguishing blasting filling and plugging, in particular to a coal field fire extinguishing blasting pipe filling and plugging device which comprises a plugging column, a rotating rod is connected into the plugging column in a penetrating mode, a rotating shaft is fixedly connected to the lower end face of the rotating rod, and first bevel gears are connected to the upper end and the lower end of the exterior of the rotating shaft in a sleeved mode. Second bevel gears are connected to one ends of the two first bevel gears in a meshed mode, double-end lead screws are connected to the interiors of the two second bevel gears in a penetrating mode, threaded blocks are connected to the left sides and the right sides of the exteriors of the two double-end lead screws in a meshed and sleeved mode, and connecting rods penetrating through the plugging columns are fixedly connected to one ends of the four threaded blocks; a supporting plate located on one side of the plugging column is fixedly connected between the upper connecting rod and the lower connecting rod, and a plurality of evenly-arranged anti-skid protrusions are fixedly connected to the surface of the supporting plate. Through the adjustable function of the supporting plate, the supporting plate can be adjusted according to the diameter of a hole, it is guaranteed that the supporting plate is completely attached to the inner wall, and the plugging effect is improved.

The application discloses a coalfield underground cavity area tar detection and pollutant degradation synergistic treatment system, belongs to the field of tar detection and degradation, and comprises a detection unit, a data analysis unit, a preparation unit, an injection well unit and a monitoring unit. A three-dimensional space distribution model is generated through multi-source physical field data fusion, a composite carrier is constructed by using microencapsulated bacterial liquid and micro-nano bubbles, and a phased pulse injection strategy is adopted to realize the synergistic treatment of chemical oxidation and biological degradation. The system can accurately identify the spatial distribution of pollution, solve the colonization problem of bacterial strains on hydrophobic surfaces, significantly improve the degradation efficiency of tar pollutants, realize dynamic optimization of the treatment process through closed-loop monitoring, and has the outstanding advantages of high treatment precision, strong adaptability and low operation cost.

The invention relates to a seismic exploration data analysis method, system and device for a complex structure area of a coal field and a medium. The method comprises the following steps: performing pre-stack depth migration imaging on coal field seismic data to obtain a pre-stack seismic data volume; diffracted waves and reflected waves of the pre-stack seismic data volume are separated, and an initial separated diffracted wave field and a reflected wave field are obtained; performing feature extraction on the initial separation diffracted wave field to obtain a polarity reversal feature parameter set; based on the mapping relation library, performing matching inversion on the polarity inversion characteristic parameter set to obtain local geologic body attribute parameters; constructing a dynamic phase correction operator according to the local geologic body attribute parameters to correct the initial separation diffracted wave field to obtain a fidelity diffracted wave field; and respectively carrying out migration imaging and fusion processing on the fidelity diffracted wave field and the reflected wave field to obtain an enhanced imaging data body of the complex structure area of the coal field. By adopting the method, the resolution capability and interpretation reliability of seismic exploration data on a complex geological structure can be improved.

The invention relates to the technical field of water gushing simulation, and discloses a test device for simulating water gushing and sand bursting of a unconsolidated formation, the test device comprises a first barrel, the surface of the first barrel is oppositely provided with partition plates, the inner bottom wall of the first barrel is uniformly provided with a plurality of axial sliding grooves along the circumferential direction, and one side, far away from the partition plates, of the surface of the first barrel is fixedly connected with an air pump; the output end of the air pump is fixedly connected with an air conveying pipe, a pressurizing assembly is arranged on the inner wall of the first barrel, and confining pressure is applied to the sand layer filled in the first barrel during testing in the working state. Through the arrangement of the water injection assembly, when water bursting and sand bursting simulation is carried out, the physical thickness of a thin film and the prefabricated depth of a cross-shaped film breaking line can be adjusted, different thicknesses and completeness of a key waterproof thin rock layer between a water-rich unconsolidated formation and an underlying sand layer in the two-Huai coal field area are simulated, and the sand bursting simulation test after thin rock layer bursting is achieved; and a plurality of test data in the same environment can be accurately simulated, so that the experiment efficiency is greatly improved.

The application discloses an intelligent coalfield seismic exploration method based on machine learning, and relates to the technical field of geological exploration.The method processes seismic wave time series data, combines resistivity distribution, constructs multi-source feature expression of residual distribution, imaging energy distribution and resistivity distribution, and realizes spatial recognition of abnormal regions by using machine learning.On the basis of the recognition of the abnormal regions, resistivity gradient distribution, resistivity spatial variation function and imaging energy attenuation rate and other features in each region are further extracted, different abnormal regions such as water-rich structures, mined-out areas and fault fracture zones are classified, after the classification of the types of the abnormal regions, resistivity gradient, resistivity spatial variation function and imaging energy attenuation rate are introduced under a unified velocity model updating framework, the direction, amplitude and spatial change relationship of the velocity updating amount are constrained, and partitioned constraint inversion of the abnormal regions is realized.

The application discloses a kind of automatic deviation correction methods in deep hole drilling of coalfield drilling, it is related to coalfield drilling technical field, the application will be determined to deviation correction attitude by four attitude solution algorithm, while the modeling of drilling attitude estimation problem based on Kalman filter is established to avoid the drift and error accumulation problem of attitude quaternion, effectively inhibit the drift and error accumulation in sensor data, by deviation calculation, the actual measured drilling attitude is compared with preset direction, the deviation between actual direction and preset direction is determined, the risk and injury possibility of operator in dangerous environment are reduced, automatic drilling deviation detection and correction are realized, reduce manual intervention, improve drilling operation efficiency, reduce manual operation error.

This application discloses a coal facies logging classification method, system, equipment, storage medium, and program product, belonging to the field of coalfield geological exploration technology. First, by selecting reference wells and collecting multi-source data, a reliable data foundation is provided for coal facies classification, avoiding the limitations of subjective assignment. Second, by evaluating the correlation between coal facies parameters and logging data, logging data categories that conform to geological laws are selected, effectively eliminating noisy data irrelevant to coal facies types and improving the effectiveness of the training dataset used for model training. By determining the significance between logging data and coal facies types, a reliable statistical correlation between the logging data used for model training and coal facies types is ensured, improving the quality of model training and the accuracy of prediction. Finally, by training a coal facies evaluation model and applying it to prediction wells, the objectivity and accuracy of coal facies classification are guaranteed. This solves the technical problems of strong subjectivity and low classification efficiency in existing technologies.

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 invention discloses a support vector machine (SVM)-based method for intelligently identifying bauxite under a coal seam, which comprises the following steps of: firstly, collecting the existing logging data and ore test results of a coal field to delineate a bauxite layer under the coal seam, and selecting five logging parameters of natural gamma (GR / CPS), long spacing gamma (GGL / CPS), lateral resistivity (LL3 / omega.M), compensation sound wave (BCA / us / m) and compensation density (CDN / g / cm < 3 >) to train an SVM model; and detecting the bauxite under the coal seam of the blind well by using the trained model. And then carrying out segmented sampling on an ore-bearing section of logging data, establishing a training set and training a regression SVM (RSVM) model, and realizing prediction of the ore grade by adopting the RSVM. According to the method, a new technical means is provided for reasonable development and efficient application of bauxite resources, the exploration efficiency and the resource evaluation accuracy are improved, and resource waste is reduced.

The invention relates to the technical field of stratified water stopping devices for hydrogeological exploration, in particular to a stratified water stopping device for hydrogeological exploration of a coal field under complex hydrogeological conditions, which comprises a phreatic bed collecting barrel and a confined water layer collecting barrel, and a fixing seat is arranged between the phreatic bed collecting barrel and the confined water layer collecting barrel. The phreatic water layer collecting barrel and the confined water layer collecting barrel are connected with the fixing base through length adjusting assemblies, and a fixing mechanism is arranged in the fixing base. The layered water stopping device has the beneficial effects that by arranging the angle adjusting assembly, the unfolding angle of the guide wheel can be adjusted so that the guide wheel can adapt to drill holes with different diameters, the application range of the guide wheel can be widened, and the layered water stopping device can be more stable and reliable when put down; the situation that water cannot flow into the phreatic layer collecting barrel and the confined water layer collecting barrel respectively due to the fact that the distance between the phreatic layer and the confined water layer is too large is avoided, and the water taking precision is improved.

The utility model provides a rock core collecting device for coal field geological drilling, which comprises a box body comprising a rectangular bottom plate and a side plate vertical to the bottom plate; the side plates comprise long side plates and short side plates; the positioning mechanisms are respectively positioned at four corners of the bottom plate and comprise positioning seats and positioning blocks which are matched with each other; the section of the positioning seat is L-shaped; the section of the positioning block is in a positive direction, and one side relatively far away from the positioning seat and the corresponding end surface of the positioning seat are positioned on the same plane; the separating mechanism comprises positioning plates detachably installed between every two adjacent positioning mechanisms and separating plates installed between every two opposite rows of positioning plates in a bridging mode. The positioning mechanisms are arranged at the four corners of the box body correspondingly, the positioning mechanisms are matched with the detachably-mounted positioning plates, then partition plates can be arranged in the box body in the first direction or the second direction at intervals correspondingly, and therefore the rock core storage cavity used for containing rock cores is formed; meanwhile, the width of the rock core storage cavity can be effectively controlled by changing the interval between the partition plates, and then the rock core storage device is suitable for rock cores of different sizes.

The application provides a coalfield geological drilling coring device, which comprises a bottom plate, a through hole arranged in the middle of the bottom plate, a portal frame arranged above the through hole, a base plate arranged on the portal frame and capable of being lifted, a drilling mechanism comprising a driving motor fixedly arranged on the base plate and a driving head connected with the driving motor, a clamping mechanism comprising a base fixedly arranged on the bottom plate and a first clamping assembly and a second clamping assembly arranged on the base in a vertical direction, the first clamping assembly being arranged above the second clamping assembly and being in liftable connection with the base. The clamping mechanism arranged on the bottom plate can clamp and fix the drill pipe through the second clamping assembly when the drilling mechanism is separated from the drill pipe, and can clamp and position the newly installed drill pipe through the first clamping assembly. The clamped and positioned drill pipe does not need manual operation, and only needs to be pressed and rotated by the drilling mechanism to make the two ends of the drill pipe respectively threadedly connected with the driving head and the drill pipe arranged below.