85 results about "Uranium mine" patented technology

The invention belongs to the technical field of nuclear power, and particularly relates to a nuclear industry uranium mine mining equipment inspection management system. According to the nuclear industry uranium mine mining equipment inspection management system provided by the invention, the inspection point configuration model taking the equipment assets as the core is constructed, and deep binding of the inspection task and the equipment ledger is realized. On the basis, the system can automatically generate a matched inspection plan according to key parameters such as the operation cycle and the inspection frequency of the equipment, and accurate compilation and standardized configuration of tasks are achieved. The generation of the inspection plan does not depend on artificial experience any more, artificial omissions and configuration errors are effectively reduced, the systematicness and normalization of task coverage are improved, timely inspection and high-frequency management and control of high-risk equipment are guaranteed, and the rigid requirement of the nuclear industry for high-reliability operation and maintenance management is met.

The invention relates to the technical field of in-situ leaching uranium mining, and provides an in-situ leaching uranium mine unit pre-oxidation circulating system and method. The in-situ leaching uranium mine unit pre-oxidation circulation system comprises a liquid extraction drilling hole; a plurality of liquid injection drill holes; the drainage hole is connected with the drainage hole through an ore bed seepage channel; the deep well submersible pump is arranged in the liquid extraction drill hole; the buffer device comprises a tank body, a plurality of communicating pipes arranged at the lower part of the tank body and a sampling nozzle arranged on the tank body; two ends of the lifting pipe are respectively connected with an outlet of the deep well submersible pump and the top of the buffer device; the plurality of liquid injection well inner pipes are respectively connected with the corresponding communicating pipes of the buffer device and the liquid injection drill holes; wherein the deep well submersible pump is used for conveying leaching liquid in the liquid pumping drill holes to the buffer device through the lifting pipe, the leaching liquid is distributed through the buffer device, then is injected into the corresponding liquid injection drill holes through the liquid injection well inner pipes and flows back to the liquid pumping drill holes through the ore bed seepage channel, and a pre-oxidation circulation loop is formed. Pre-oxidation circulation is completed in advance, and the leaching time of a mining area is shortened.

The invention belongs to a uranium mine multivariate information fusion method, and particularly relates to a sandstone type uranium mine geochemical data multivariate information fusion method. The method comprises the following steps: (1) carrying out standardization processing on original geochemical analysis element data of the sandstone type uranium mine; (2) calculating a correlation coefficient matrix of the original data, and screening elements with correlation coefficients greater than 0.4 as sample data of information fusion; step (3), calculating a covariance matrix of the sample data; step (4), calculating; (5) calculating an accumulated variance contribution rate; (6) calculating the score coefficient of each principal component, and calculating the score of each principal component; and step (7), according to the comprehensive principal component data, making a comprehensive principal component map, and carrying out geological anomalous body identification. The method has the remarkable effects that multi-information fusion is carried out, the influence of external interference factors can be reduced, the purpose of improving the geochemical data abnormal contrast and the data processing reliability is achieved, and a reliable basis is provided for delineation of the prospective area of the sandstone type uranium mine.

The present application relates to a kind of extraction methods of uranium resource sample set in flight release feature, specifically to a kind of extraction methods of uranium resource sample set in flight release feature.The present application includes the following steps: step 1, known uranium deposit is converted into polygonal uranium mine area information;Step 2, sample label data in uranium mine area is generated according to fixed distance;Step 3, generate the flight release data of grid format;Step 4, the sample label corresponding to the feature value of flight release data generated by polygonal uranium mine area is calculated;Step 5, the calculation result is saved as uranium resource flight release sample data set.The present application can more accurately reflect the situation of flight release feature in uranium mineralization range.

The invention discloses a physical permeation increasing device and method for improving the permeability of a sandstone type uranium ore layer, relates to the technical field of in-situ leaching uranium mining, and aims to solve the problems that in the sandstone type uranium ore layer process, due to the fact that the permeability of an ore layer is poor, the drilling hole liquid pumping and injecting amount is affected, and the productivity is seriously affected in the existing mining technology. The device comprises a cavitation pipe column inserted into a casing pipe, the cavitation pipe column comprises an oil pipe arranged in the casing pipe, a filter is arranged on the lower portion of the cavitation pipe column, a cavitator is arranged at the bottom of the cavitation pipe column, the top of the cavitation pipe column is connected with the bottom of a Christmas tree, and water return pipelines are connected to the two sides of the Christmas tree respectively. The Christmas tree is connected with the water storage tank through a water return pipeline, the top of the Christmas tree is connected with a high-pressure water faucet pipe, and pump injection equipment is arranged between the high-pressure water faucet pipe and the water storage tank.

The invention relates to the field of small-caliber core drilling, in particular to a composite sheet drill bit for sandstone type uranium mine rope coring. The drill bit comprises a drill bit body, the drill bit body is arranged at the foremost end of a drilling pipe, the drill bit body is of an annular structure, a plurality of fan-shaped tire bodies are arranged at the top end of the drill bit body, a water gap is formed between every two adjacent tire bodies, composite sheets are further arranged on the drill bit body, the composite sheets are arranged between every two adjacent tire bodies, and every two adjacent composite sheets are symmetrically arranged in a staggered mode. The compact drill bit has the advantages that the compact drill bit is simple in structure, the service life of the compact drill bit can be effectively prolonged, and the rock core recovery rate of a sandstone stratum is increased. The inner and outer gauge protection strips can effectively reduce drill bit abrasion and reduce wire line coring drill lifting times. The drill bit is further characterized in that the rotation stability of the drill bit at the hole bottom is effectively improved through the design of the eight-wing composite sheet, jumping of a drilling tool is avoided, and the adaptability of the drill bit to different stratums is improved. In addition, the multi-water-gap design of the drill bit can prevent a cutting tool mud drum from being passivated, the problems of pump suffocation, difficulty in inner pipe salvage and the like in the drilling process are reduced, and therefore the drilling speed is increased.

This invention pertains to data processing technology for seismic exploration of sandstone-type uranium deposits, specifically an adaptive denoising method for sandstone-type uranium deposit seismic data based on sparse transform. The method includes: inputting noisy raw two-dimensional seismic data y; initializing the maximum number of iterations I, setting the outer iterative accumulator i=1, and designing a search range J for the denoising coefficient truncation percentage; for each i, calculating the curvelet transform coefficients s of y; for each j within the search range, applying hard thresholding for denoising, and performing an inverse curvelet transform on the denoised coefficients to obtain the denoised seismic data y. j ; Calculate the noise removal ε corresponding to each j j The entropy; compare the calculated noise ε removed for each j. j The entropy is calculated, and the percentage corresponding to the maximum entropy within the search range is taken as the optimal denoising effect, and the corresponding seismic data is output. If i reaches the maximum number of iterations, the loop is exited, and the denoised seismic data corresponding to the current maximum entropy value is used as the output result. This invention can protect the effective signal while suppressing random noise.

The invention belongs to the technical field of sandstone type uranium ore geological drilling, and particularly relates to a compact mudstone stratum coring bit suitable for sandstone type uranium ore geological drilling. According to the drill bit, the inner cutting teeth and the outer cutting teeth are arranged in a staggered mode, the top ends of the inner cutting teeth and the outer cutting teeth are located at different heights and are arranged in a stepped mode, so that in the rotating process of the drill bit, the high-position cutting teeth firstly make contact with a stratum for cutting to form a broken free face, and the low-position cutting teeth further cut to expand the formed cutting free face; a stratum cutting free surface is enlarged compared with a drill bit in the prior art, so that the effect of improving the drilling efficiency is achieved. In addition, the water gaps are evenly distributed close to the cutting teeth, and cut rock debris is removed in time.

The present application relates to a kind of sandstone uranium mining method of uranium mining.The method includes: according to the interval between the interval between liquid pumping well and liquid injection well and the permeability of stratum is determined, and according to the thickness of ore bed determines four perforation segments;One liquid pumping well and one liquid injection well correspond to four perforation segments;And each of the perforation segment corresponds to the direction of surrounding well;When indicating the perforation segment on the liquid pumping well, the surrounding well is liquid injection well, when indicating the perforation segment on the liquid injection well, the surrounding well is liquid pumping well;The length of the perforation segment is obtained and is perforated, and according to the length of the perforation segment, the liquid pumping well and the liquid injection well are fractured from bottom to top, until the direction of four perforation segments on any well is fractured;Injection agent is injected into the liquid injection well after fracturing, and leaching solution is extracted from the liquid pumping well after fracturing;The leaching solution is treated, and uranium product is obtained.The present application reduces the cost while improving the permeability, and improves the uranium leaching amount.

The invention relates to the technical field of sandstone type uranium mine drilling and well completion, and provides a chambering type in-situ leaching drilling secondary well completion quality control method and device, a medium and equipment, and the method comprises the steps: obtaining the original formation logging characteristics of a target logging section and the after-chambering formation logging characteristics; calculating a three-dimensional characteristic evaluation index based on the hole-expanded formation logging characteristics and the original formation logging characteristics; when the three-dimensional characteristic evaluation index does not meet the preset requirement, reaming construction is conducted again; when the three-dimensional characteristic evaluation indexes meet preset requirements, a filter is put down for gravel throwing, and the gravel throwing rate of the reaming position is calculated after gravel throwing; when the gravel throwing rate meets a preset threshold value, well completion quality evaluation is completed, and an evaluation report is determined; and when the gravel throwing rate does not meet the preset threshold value, secondary gravel throwing construction is conducted. According to the embodiment of the invention, the three-dimensional characteristic index of the reaming position is combined with the gravel throwing rate of the reaming section, so that the multi-dimensional control of the drilling well completion quality of the sandstone type uranium mine is realized, the leaching effect of the ore bed is improved, and the service life of the drilling hole is prolonged.

A hydrothermal type uranium mine deep structure detection method based on electromagnetic method combined inversion, comprising: based on wide area electromagnetic method and magnetotelluric method, respectively acquiring wide area electromagnetic data set and magnetotelluric data set of each measuring point on the measuring line, and synchronously collecting the resistivity of rock samples, and generating a physical parameter table according to the resistivity; the wide area electromagnetic data set and the magnetotelluric data set are subjected to one-dimensional Occam inversion, and first resistivity profile and second resistivity profile are respectively generated; according to the depth weight function, the physical parameter table, the first resistivity profile and the second resistivity profile, an initial resistivity model is generated; the inversion objective function is iteratively solved by using the combined inversion algorithm, and the two-dimensional resistivity inversion profile is output when the iteration is terminated; the two-dimensional resistivity inversion profile is interpreted according to the physical parameter table, and a three-dimensional structural framework is established by using the interpretation result; based on the three-dimensional structural framework and the two-dimensional resistivity inversion profile, the target area in the target mine field is obtained.

The invention discloses a uranium mine logging instrument based on ultrashort pulse neutrons and a working method thereof, and relates to the field of uranium mine exploration logging. The logging instrument comprises a control communication short section, an ultrashort pulse neutron generator used for emitting fast neutron pulses with the pulse width smaller than 1 microsecond to a stratum, a shielding body and a double-thermal-neutron detection assembly used for detecting thermal neutrons and epithermal neutrons on measuring points consistent in space, all of which are sequentially arranged in the axial direction of the logging instrument. The gamma detector is used for detecting inelastic scattering gamma rays emitted by stratum elements and capturing gamma rays, and the fast neutron detector is used for detecting and outputting source intensity monitoring signals of fast neutron pulses in real time. According to the logging instrument, the ultra-short fast neutron pulse is emitted, the neutron yield is detected in real time, the neutron time spectrum and gamma-ray energy spectrum multi-dimensional information with an accurate timestamp are obtained in a combined mode, high-precision and anti-interference inversion is conducted on the stratum uranium content, and stratum information is obtained efficiently and accurately.

The application provides a sandstone uranium mine gas-liquid alternating leaching method, which comprises the following steps: S1, injecting a leaching agent into a core column filled with a naturally broken sample until the leaching agent fills the core column; S2, injecting oxygen into the core column, raising the pressure in the core column to a first target pressure P1 and maintaining the pressure until a first target time, so that the sample reacts under the action of the leaching agent containing dissolved oxygen to form a reaction solution; S3, transferring the reaction solution in the core column to the intermediate container; the application has the beneficial effect that the sample in the core column is subjected to gas-liquid alternating leaching, the oxygen in the leaching liquid reacts with the sample to alternately change into an oxygen-rich gaseous state, so that the mineral is in a wetted state, the surface liquid film layer is thinned, the diffusion of oxygen at the gas-liquid interface is facilitated, the oxidation rate is accelerated, when the liquid film surface and the ion concentration difference in the leaching agent are converted into an oxygen-rich liquid state again, the hydrodynamic dispersion process is accelerated, and thus the leaching rate is improved.

The invention discloses a PAN-based electrostatic spinning uranium adsorption film as well as a preparation method and application thereof, and relates to the technical field of uranium resource recovery and wastewater treatment such as seawater / salt lake brine and uranium mine wastewater. The preparation method comprises the following steps: respectively filling a PAN-based spinning solution and two monomer solutions into three injectors of electrostatic spinning equipment, and then carrying out electrostatic spinning to enable the two monomer solutions and the PAN-based spinning solution to be subjected to synergistic spinning to obtain a primary electrostatic spinning membrane; the two monomer solutions are an amino monomer solution and an aldehyde monomer solution, and the molar ratio of an amino monomer to an aldehyde monomer is 1: 1; and spraying the surface of the primary electrostatic spinning film wet by acetic acid, and then carrying out hot pressing treatment to obtain the PAN-based electrostatic spinning uranium adsorption film. According to the preparation method, a PAN-based spinning solution and two monomer solutions are adopted for synergic spinning, so that nano-pore channels exist in the PAN-based electrostatic spinning uranium adsorption film, and a COF-like adsorbent is uniformly loaded on the surface of nano-fibers.

The invention provides a uranium mine distribution prediction method based on seismic exploration, and the method comprises the following steps: dividing surface grids, arranging artificial seismic sources and detectors at grid nodes, obtaining exploration underground rock stratum distribution information corresponding to the grid node where each artificial seismic source is located, training an ideal uranium mine distribution grid model, and predicting uranium mine distribution. And inputting the exploration underground rock stratum distribution information into the ideal uranium mine distribution grid model, outputting ideal underground rock stratum distribution information, calculating an ideal error, determining a prediction position according to the ideal error and a preset error, and taking the prediction position as a reference to obtain predicted uranium mine distribution information outside the exploration area. According to the uranium mine distribution prediction method based on seismic exploration, the uranium mine distribution prediction accuracy and reliability can be improved.

The present application belongs to the technical field of uranium mine, and particularly relates to a method for evaluating the effect of intermediate-basic rock intrusion reformation on uranium mineralization in sandstone type uranium mine, which comprises the following steps: step one, data collection; step two, field core observation and sample collection; step three, evaluation of the space-time relationship between intermediate-basic rock intrusion reformation and uranium mineralization; step four, evaluation of the influence of intermediate-basic rock intrusion reformation on the physical property of ore-bearing layer; step five, evaluation of the influence of intermediate-basic rock intrusion reformation on groundwater migration and driving mechanism; step six, evaluation of the influence of intermediate-basic rock intrusion reformation on uranium mineralization; and step seven, comprehensive analysis and evaluation of the uranium mineralization effect of intermediate-basic rock intrusion reformation in sandstone type uranium mine. The method comprehensively evaluates the influence of intermediate-basic rock intrusion reformation on the formation and preservation of uranium mine, identifies the uranium mineralization effect of intermediate-basic rock intrusion reformation in sandstone type uranium mine, and establishes a sandstone uranium mineralization pattern diagram of intermediate-basic rock intrusion reformation.

The present application relates to sewage remediation technical field, particularly to a kind of in-situ microbial pumping and injection remediation method of acid uranium mining groundwater.The method provided by the present application has the following advantages:1) the present application uses contaminated raw water to culture sulfate-reducing bacteria into bacterial solution, and continuously injects bacterial solution into the area to be repaired, and supplements new culture medium, so as to realize the continuous pumping and injection of bacterial solution, by reasonably controlling the continuous pumping and injection ratio (15%, 20% pumping and injection alternately), increase the reproduction and expansion rate of functional microorganisms, enhance the self-reproduction and repair effect of in-situ microorganisms, realize the efficient removal of iron, uranium and sulfate, reduce the degree of water pollution;2) low cost: sulfate-reducing bacteria is a kind of biological catalyst that can self-reproduce, by suitable pumping and injection ratio, in-situ biological sustainable remediation effect can be realized, and the cost of groundwater pumping and treatment is reduced;3) environmentally friendly: sulfate-reducing bacteria is non-toxic and harmless to the environment, and will not cause secondary pollution.

This invention provides a method for 226 Ra and 210 This invention relates to the field of radioactive ion extraction and separation, specifically a composite membrane for Pb separation, its preparation method, and its applications. The method includes the following steps: mixing polyacrylonitrile, crown ether, and an ionic liquid to obtain a spinning solution; spinning this solution to form a composite membrane. This invention enables the separation of Pb from uranium ore digestion solutions. 226 Ra and 210 The effective extraction and separation of Pb reduces radioactive pollution in the environment and enables the recycling of environmental resources. At the same time, the preparation method is simple and low-cost, and the resulting composite membrane is non-toxic and harmless, which is conducive to industrial application.

The invention relates to the technical field of coal and uranium mining control, in particular to a coal and uranium integrated mining stratum migration control system and an application method. Aiming at the problem of overlying strata displacement instability caused by mining-induced stress superposition in coal-uranium collaborative mining, the invention provides the following technical scheme: the device comprises a geological mechanism, a coal-uranium production mechanism, a fracturing filling mechanism and a uranium concentration control mechanism; the geological mechanism comprises a surface layer, a uranium layer, a coal seam, a water-bearing layer, a caving field, a fracture field and a stratum subsidence field; wherein the uranium layer is located below the surface layer and soaked in the water-bearing layer, the coal layer is located obliquely below the uranium layer, and the water-bearing layer penetrates through the uranium layer and the coal layer; the coal uranium production mechanism comprises a production control device, a liquid injection well and a liquid pumping well which are connected. According to the method, cyclic utilization of the in-situ leaching solution of the uranium mine reservoir is improved, scientific and technical support is provided for safe, efficient and green mining of coal uranium resources in a mining area, and efficient cyclic utilization and migration inhibition of the uranium resources in uranium mine mining are achieved.

The application discloses a method for jointly mining coal and symbiotic uranium mine, and belongs to the technical field of mine exploitation. The method is specifically as follows: a coal mine field is divided into three zones, one wing of the field is a uranium mine preferential mining zone, the other wing is a coal mine mining zone, and the middle part is a protection zone; liquid pumping and injecting wells for in-situ leaching of the uranium mine are arranged in the coal mine underground; then, a coal seam in the coal mine mining zone of the coal mine field is mined, and meanwhile, the liquid pumping and injecting wells for the uranium mine are constructed downwardly by using a mining preparation roadway in the uranium mine preferential mining zone to perform in-situ leaching of the uranium mine; after the uranium mine is mined, the overlying coal seam of the uranium mine is mined, and the underlying coal seam of the uranium mine is mined by using a filling type or in-situ unmanned mining. The method for jointly mining the coal mine and the uranium mine can avoid the influence of uranium mine mining on subsequent coal mine mining, saves engineering quantity, and improves the confidentiality of uranium mine mining.

The invention provides a safe plugging and controllable flowback system for a uranium ore blasting and permeation increasing process, and belongs to the technical field of safe blasting plugging, and the safe plugging and controllable flowback system for the uranium ore blasting and permeation increasing process comprises a blasting section, a first plugging section, a flowback connecting sleeve and a second plugging section which are sequentially connected from bottom to top, a first air bag is arranged on the periphery of the first plugging section; a pressure relief hole communicated with the outside is formed in the side wall of the flowback connecting sleeve, and a second air bag is arranged on the periphery of the second plugging section. The safe plugging and controllable flowback system for the uranium ore blasting and permeation increasing process further comprises an air compressor, a first gas channel and a second gas channel, the air compressor is used for inflating and deflating the first gas bag and the second gas bag, the first gas channel sequentially penetrates through the second plugging section and the flowback connecting sleeve, and the second gas channel sequentially penetrates through the second plugging section and the flowback connecting sleeve. The first gas channel is communicated with the first gas bag and is communicated with the first gas bag, and the second gas channel is communicated with the second gas bag.

The invention belongs to the technical field of uranium mining and smelting, and particularly relates to a hydraulic spiral slag returning device and method for returning cut slag in an in-situ leaching uranium mining well. According to the device, continuous, active and efficient conveying and discharging of cutting slag in the cutting cavity are achieved through the synergistic effect of the rotating spiral pipe and the drill bit in combination with hydraulic pushing. Compared with the traditional methods such as pure hydraulic flushing and stirring or drill lifting slag salvaging, the device shortens the single slag return operation time to be less than 1 hour, and improves the cut slag return rate to be more than 90%, so that the construction efficiency is greatly improved, and the quality of subsequent well completion operation is ensured.

The invention discloses a coal gasification slag-based porous sponge for uranium mine wastewater treatment and a preparation method thereof, relates to the field of radioactive wastewater treatment and solid waste recycling, and aims to solve the technical problems of poor adsorption inertia, poor interface stability and insufficient selectivity of the existing coal gasification slag-based material in strongly acidic uranium mine wastewater. According to the technical key points, the method comprises the following steps: step 1, preparing an alkaline solution, putting the coal gasification slag into the alkaline solution for etching treatment, and collecting the treated coal gasification slag to obtain solid powder A; 2, grinding and mixing the solid powder A and urea, and performing pyrolysis treatment in a nitrogen atmosphere to obtain nitrogen-doped coal gasification slag-based porous sponge B; 3, placing the porous sponge B in a mixed acid solution of nitric acid and hydrochloric acid for carboxylation modification to obtain sponge C with the surface rich in carboxyl; step 4, immersing the sponge C into a PEI aqueous solution; pEI is chemically bonded with the sponge through carboxyl on the sponge C, and the coal gasification slag-based porous sponge is obtained.

The application provides an in-situ leaching uranium mining process well structure and an implementation method thereof, and relates to the field of in-situ leaching uranium mining.The structure comprises a casing string, the casing string comprising a casing, a filter pipe and a sand setting pipe, the bottom of the sand setting pipe being provided with a first flow-through hole, a grouting cavity being formed in a wellhead when the casing string is used to be arranged in the inside of the wellhead; a subsidy casing, the subsidy casing being fixedly connected to the inner wall surface of the filter pipe, the bottom of the subsidy casing being flush with the bottom of the filter pipe, the top of the subsidy casing being higher than the top of the filter pipe, and a plurality of second flow-through holes being arranged at the top of the subsidy casing, the plurality of second flow-through holes being communicated with the grouting cavity and the first flow-through hole; and a cement slurry detection device, the cement slurry detection device being used to feed back the density value of the overflowed cement slurry at the second flow-through hole.The application can conveniently and accurately position the ore layer section, can reduce the invalid dilution of the leaching agent or the leaching liquid, and can realize the efficient mining of the uranium mine.

The embodiment of the invention discloses an online measuring device, method and system for uranium concentration of uranium mine leaching liquid. In the device, a first assembly or a second assembly can be adopted when the uranium mine leaching liquid is conveyed from a first pipeline to a measuring pool containing a lead shielding part. When uranium mine leaching liquid is conveyed to the measuring pool containing the lead shielding part through the first assembly, first energy spectrum data measured by the gamma-ray energy spectrum detection part does not contain U-235 gamma ray characteristic peaks. Second energy spectrum data measured by the gamma-ray energy spectrum detection part contains U-235 gamma ray characteristic peaks when uranium mine leaching liquid is conveyed to the measurement pool containing the lead shielding part through the first assembly, so that the uranium concentration can be determined according to the first energy spectrum data and the second energy spectrum data. In this way, no extra reagent needs to be added in the uranium concentration measuring process, and the uranium concentration measuring process is not affected by the content of radioactive daughters.

The invention discloses a uranium-containing mine water treatment system and a uranium-containing mine water treatment method. The uranium-containing mine water treatment system comprises a precipitation system, a uranium treatment system, a filtering system, an induced crystallization reaction system, a sodium chloride industrial salt generation system and a sodium sulfate industrial salt generation system, the induced crystallization reaction system is connected with a concentrated water outlet of the filtering system, the sodium chloride industrial salt generation system is connected with a produced water outlet of the induced crystallization reaction system, and the sodium sulfate industrial salt generation system is connected with a concentrated water outlet of the induced crystallization reaction system. Before hardness removal, uranium in mine water is removed through the uranium treatment system, then filtering is conducted through the filtering system, calcium and magnesium ions are removed through the induced crystallization reaction system, and finally sodium chloride industrial salt and sodium sulfate industrial salt are generated through the sodium chloride industrial salt generation system and the sodium sulfate industrial salt generation system respectively. The purification treatment effect of the mine water is improved, a set of complete mine water treatment system is provided, and the system has wide popularization significance.

The utility model relates to the technical field of uranium mining, and discloses a tubular column assembly and a fracturing system. The tubular column assembly comprises a first sleeve and a second sleeve. The first sleeve is made of a first material. One end of the second sleeve is connected with one end of the first sleeve, so that the second sleeve is axially communicated with the first sleeve. And the second sleeve is made of a second material. Wherein the first material is different from the second material. According to the pipe column assembly, the second sleeve is axially communicated with the first sleeve, and the whole pipe column assembly is formed. The first material and the second material are different, so that the compressive strength is improved, the fracturing construction condition is met, the reservoir fracturing transformation effect is improved, the cost is reduced, and the economical efficiency is improved.

The invention discloses a column leaching device and method for electric field reinforced uranium ore leaching, the column leaching device comprises an electric field reinforced high-pressure leaching column and an ion exchange device, two openings are formed in an insulating cylinder in the electric field reinforced high-pressure leaching column at intervals, and the two openings are connected with openings located in the two ends of the ion exchange device through guide pipes respectively; according to the electric field enhanced uranium ore column leaching device, the mode that the electric field enhanced high-pressure leaching column is combined with the ion exchange device is adopted, a directional electric field is formed in the leaching column, the electric field is maintained on the basis of the salt bridge principle, and then the purpose of electric field enhanced uranium ore column leaching is achieved; the device overcomes the defects that an existing column leaching device is single in function and cannot undertake an electric field enhanced leaching experiment, has the advantages of being easy and convenient to operate and reliable in performance, and is high in practicability.

The invention belongs to a rapid drawing method, and particularly relates to a rapid drawing method for two extrapolation points, perpendicular to a straight line, of a sandstone type uranium mine plane graph. The method comprises the following steps: S1, setting a ten-digit code of a working area; s2, determining an arbitrary engineering point and an arbitrary engineering straight line in the working area plan; S3, determining an extrapolation distance mode in which the arbitrary engineering point is vertical to the arbitrary engineering straight line in the working area plan; s4, calculating; s5, solving an azimuth angle; and S6, solving an extrapolation point. The method has the advantages that the method is suitable for rapidly drawing the two extrapolation points, perpendicular to the straight line, of all kinds of sandstone type uranium mine plane graphs, and is particularly suitable for compiling, storing and managing electronic and digital ore body horizontal projection graphs, the collected data is reliable in precision, labor intensity is relieved, and the method is simple, rapid, economical and feasible.

The invention relates to the field of sandstone type uranium mine logging, in particular to an artificial intelligence-based sandstone type uranium mine logging data lithology automatic identification method. Comprising the following steps: preparing logging data; data cleaning is carried out; analyzing and processing logging data; carrying out abnormal point processing, median filtering, normalization processing and feature engineering on the data; selecting and training a model; testing and optimizing the model; and lithology identification: inputting logging data to be identified into the optimal model, and outputting an automatic identification result of lithology and lithofacies. According to the method, the efficiency and accuracy of sandstone type uranium mine logging data lithology identification are remarkably improved, the data processing flow is optimized through a systematized and modularized technical architecture, the labor cost is reduced, digital transformation in the uranium mine exploration field is powerfully promoted, and the method has important practical application value and industry popularization significance.