1061 results about "Mineral Sources" patented technology

The invention discloses a method for filling and mining after ore caving, which includes the following steps: exploiting; mining quasi work; cutting work: including excavation of mine collection trench and patio cutting, cutting a patio at one end portion of a rock drilling chamber, cutting the patio by using a vertical deep hole ore falling stage chamber method, and enabling patio cutting to provide sufficient compensation space for actual mining; chamber extraction work: constructing a downward blasthole in the rock drilling chamber, filling and blasting, one-time blasting charging at the entire middle section height of the blasthole, and enabling blasting to adopt one-time lateral blasting and ore removal; filling and maintaining: closing all outlets communicated with a lower mine of the empty area, burying strainer pipes, leading in filling pipelines from the upper portion of the chamber, and filling and maintaining the chamber; and pillar recovery: recovering pillars after filling and maintaining the chamber, and the pillar recovery is the same as the chamber extraction work. The method for filling and mining after ore caving is high in recovery rate of mineral resources, small in blasting impact effect, low in cost and high in production efficiency.

The invention relate to a method of extracting scandium from red mud, the method utilize the red mud that come from the process of producing aluminum oxide from alumyte, in accordance with specific characteristics of red mud, applying hydrochloric acid leach, P204 abstraction, acid-washing edulcoration, sodium-hydroxide back extraction, ammonia modifier hydrolytic decomposition zirconium and titanate in hydrochloric acid solution, oxalic acid precipitating scandium and medium temperature calcining technique, the purity of final production Sc2O3 is 99.9%. Extracting scandium from red mud change refuse into available material, save mineral resources, benefiting environmental conservation. The invention also fills up the study vacant of isolation technique in high-strength zirconium titanate and scandium.

The invention relates to a direct prestack time migration method for the seismic data acquired under the undulant ground surface. The method is applied to reflection seismic data processing during earthquake exploration and is a prestack migration imaging method aiming at the seismic data acquired under the undulant ground surface. The method can be directly applied to the seismic data which is acquired under the undulant ground surface and is acquired at shot points and demodulation points of different heights. Accordingly, the method can avoid errors caused by field static correction processing as well as correct the speed of a speed reducing belt in a migration process. The method can self-adaptively determine time-varying migration aperture and can correctly compensate geometric spreading effect of seismic waves during an imaging process so as to obtain an amplitude-preserved common reflection point gather. The core of the method is to use a one-way wave theory and a stable phase point principle to analyze so that the travel time and the amplitude of the seismic waves, which depend on the speed and thickness of the speed reducing belt, the heights of the shot points and the demodulation points, and stacking speed based on a floating datum plane, are obtained. The method has important application value for the explorations of oil, gas and mineral resources in areas with complex ground surfaces.

The beneficiation method for zinc oxide ore includes milling, lead oxide floating, 1-3 grade of fine grain roughing of the tailings after lead oxide floating, 1-3 times of beneficiation for each roughed concentrate, roughing the middlings of the last time and the middlings of the first beneficiation, and final precise floating to obtain the concentrate. The present invention solves the technological problem of floating muddy zinc oxide ore by means of first floating of small grains and then the large grains, and has high zinc oxide ore recovering rate, reduced zinc oxide content in the tailings, lowered floating agent consumption and effective utilization of muddy zinc oxide ore.A

A bandage remains securely attached to the skin of a wearer during extended exposure to arid, humid or wet conditions. The bandage is readily removed from the attached condition upon application of pressure to its exterior surface. Adhesive portions of the contain pockets or microcapsules filled with an adhesive-inactivating ingredient. The pockets are formed in the backing layer. Microcapsules, if present, are incorporated in the adhesive. The adhesive inactivating ingredient comprises oil from vegetable source, mineral source or fatty acids. The wearer ruptures the pockets or microcapsules by applying pressure to the bandage above the adhesive portions. The adhesive-inactivating ingredient is thereby released at the skin-adhesive interface, permitting an easy, pain-free removal of the bandage.

The invention discloses a high-altitude permafrost region porphyry type copper polymetallic mine exploration technology combination method which can improve the prospecting success rate. The method includes the following steps: A, determining a metallogenic system as a collision orogenic metallogenic system in cooperation with a collision orogenic regional geological background according to the output spatial-temporal characteristics of a permafrost region porphyry type copper molybdenum mine typical mineral deposit and numerous mineral occurrences; B, measuring stream sediments with the aim of observing geochemical halos on the upper portion of a porphyry body mineral body, defining a magnetic abnormity region through high-accuracy magnetic measurement, and defining a remote sensing predicting region with the aim of forecasting mineral resources such as copper, lead and zinc through high resolution remote sensing; C, conducting 1:1 soil profile or petrochemistry profile, groove and well exploratory exposure on explored abnormal or mineralization clues; D, defining a mineralized region or the mineral body; E, verifying the defined mineralized region or mineral body through drilling; F, determining the mineral body or the mineral deposit. By means of the method, the prospecting working period of a porphyry type copper molybdenum mineral region can be shortened, and meanwhile numerous metal mineral bodies can be explored.

The invention discloses a beneficiation method for low-grade mixed copper ore containing molybdenum. According to the properties and characteristics of the low-grade mixed copper ore containing molybdenum, the copper and molybdenum bulk floatation and re-separation principle technological process is adopted, and high-efficiency concentration of minerals is achieved by using a combination of butyl xanthate and a high-efficiency collector M201 during copper and molybdenum bulk floatation operation; high-efficiency reagent removal of bulk concentrates is achieved through a concentration dewatering and fine grinding method during copper and molybdenum separation operation so that the impact of a large number of reagents existing in copper-lead bulk concentrates on copper and molybdenum separation can be reduced; and moreover, copper minerals are suppressed by means of suppressant F-6, so that separation of copper and molybdenum is effectively realized, and the copper content and molybdenum content of the concentrates are effectively reduced. Meanwhile, in order to stabilize the floatation indexes, the floatation process is optimized for site production, namely, branching and streaming floatation; accordingly, the purpose of comprehensive recovery and utilization of mineral resources is achieved.

The invention discloses a making method of paper plaster board, which comprises the following steps: mixing the phosphogypsum and desulfuration plaster according to the weight ratio at 50-90:50-10; drying until the free water content under 5 percent; sintering the plaster at 160-220 DEG C continually to form the calcined gypsum powder with 5-9 percent crystal water; cooling in the bin; placing to obtain the architecture plaster powder; stirring the plaster powder with white corn starch latex, foaming agent, glass fiber and water evenly into material paste; compounding the roof and bottom of paper plaster board through plate-typed molder. The invention saves the natural plaster resource and cost, which improves the product property.

The invention relates to a zinc hydrometallurgy production process. According to the zinc hydrometallurgy production process provided by the invention, reduction leached supernate is subjected to preneutralization, then zinc dust is added for replacing indium, after the indium is separately removed, oxygen with the concentration being not lower than 98 percent is filled into liquid obtained after the indium is deposited, controlling the temperature in the range of 160 to 200 DEG C and controlling the pressure in the range of 1,000 to 2,000kPa, so that iron precipitates in the liquid obtained after the indium is deposited enter slags. The iron removed liquid obtained by the zinc hydrometallurgy production process has the iron content being lower than 1.2g / l, the iron removed liquid can be directly returned to be subjected to neutral leaching, and the system has stable production working conditions and is beneficial to stable production; in the iron slags obtained by the zinc hydrometallurgy production process, the zinc content is lower than 1 percent, the zinc loss is low and the zinc recovery rate is high; the iron slags can be directly sold to a cement plant and an iron and steel plant to be used as the raw materials without being stacked in a slag field, so that the zinc hydrometallurgy production process is beneficial to environmental-protection and the comprehensive utilization of resources and mineral resources are saved.

The invention provides an anisotropic three-dimensional prestack time migration method which is applied to processing reflection seismic data in seismic exploration and relates to a prestack time migration method aiming at three-dimensional seismic data acquisition. The method takes into account the effect of the velocity anisotropy of an earth medium on the travel time and the amplitude value propagated by a seismic wave and can independently determine the migration velocity and the anisotropic parameters during the migration process, therefore, a migration image which is accurately homed and is preserved in amplitude is obtained. The method determines the three-dimensional time-varying migration aperture in an anisotropic medium according to an underground structure time-varying inclination angle and can simultaneously press the migration noise during the migration process. With the adoption of the method, the efficient and parallel calculation is realized through reasonable distribution of the seismic data among compute nodes of a cluster computer. The method has the key point that the travel time, the amplitude value and the imaging weight coefficients of the seismic wave and an incident angle in the anisotropic medium are solved with the application of a one-way wave operator with deep migration and the steady phase point principle; and has the important application value for oil-gas and mineral resource exploration.

The invention relates to an inversion method for copper elements in soil in vegetation-covered areas on the basis of measured spectra of leaves. The inversion method includes steps of firstly, acquiring and preprocessing images; secondly, carrying out in-situ sampling; thirdly, processing samples; fourthly, measuring and preprocessing the spectra of the leaves; fifthly, measuring the contents of the copper elements in the soil samples; sixthly, computing vegetation indexes and spectral parameters; seventhly, analyzing correlations and selecting parameters; eighthly, building models; ninthly, carrying out large-area inversion on the content of the copper elements in the soil. The inversion method has the advantages that images of the content of the copper elements in the large-area soil inthe vegetation-covered areas can be obtained, accordingly, indication information and mineral exploration clues can be provided to mineral resource investigation, and scientific bases can be providedto land quality evaluation and soil comprehensive treatment; heavy metal pollution diffusion conditions of the soil and control effect evaluation can be obtained on the basis by means of multi-temporal analysis; the inversion method is wide in detectable range and high in speed, monitoring can be carried out in real time, and the like.

The invention belongs to the fields of integrated utilization technology of magnesite and environmental protection, and relates to an integrated utilization method of low grade magnesite. The method comprises steps of: magnesite fragmentation; ore grinding; ore dressing; ore dressing product calcining; conversion of calcined useful components into magnesium salt to prepare high purity magnesium oxide or direct electrolysis of the calcined useful components into magnesium metal or preparation of refractory material; and recovery utilization of gas generated by calcination. The invention comprehensively utilizes useful ingredients in the magnesite, realizes zero discharge of magnesite mine tailing, increases utilization rate of low grade magnesite and efficiently utilizes ore resource; and especially, fluidized roasting by a horizontal fluidized bed saves energy consumption and maximize economic benefit.

The invention discloses a direct prestack time migration method for three-dimensional seismic data acquired from irregular surfaces, and the method is applied to the processing on reflected seismic information in seismic exploration. The method can be used for directly carrying out three-dimensional seismic data migration imaging (at different elevations) on shot points and geophone points acquired from irregular surfaces without statically correcting a processing process. In the method, no vertical emergence and incidence assumption is performed on nearsurface seismic wave propagation, therefore, the method can adapt to the situations which have no obvious low velocity region and velocity-reduction region such as high-velocity rock outcropping, and the like. In the method, the seismic wave propagation in near surfaces or stratums is described by using two equivalent speed parameters; and the two equivalent speed parameters can be determined according to the straightness of lineups inmigrated gathers, thereby avoiding the difficulties in near-surface velocity modeling. By using the method disclosed by the invention, the gathers subjected to migration can be subjected to remainingstatic correction, thereby effectively compensating the inherent errors existing in a land acquisition technology. The method has important application value in oil, gas and mineral resource exploration in complex surface areas.

The invention discloses a mineral resource multi-information processing method based on a GIS and a system thereof. The method comprises that: step one, a mineralization rule and a conceptual model are established; step two, an independent conditional diagram layer is established according to the conceptual model; step three, spatial analysis modeling is performed according to the independent conditional diagram layer; and step four, a prediction unit is generated according to results of the spatial analysis modeling. Automation of the sharing and operation processes of a mineral resource prediction model is realized by the method.

The invention relates to a method and device for detecting liquid samples by using breakdown spectroscopy. The device utilizes the ultrasonic atomization method to atomize the liquid samples to form massive and dense droplets in the air, breaks down and induces plasma and radiates an emission spectra signal. The method comprises the following steps: high-frequency oscillation is generated by the ultrasonic transducer (3) of the device of the invention to ensure that the liquid samples (4) in a sample cell (5) generate fog droplets, with the aid of a supply fan and an exhaust fan (13), columnar mist is generated above an air duct (6); plasma is generated at the edge of the columnar mist through breakdown, the plasma emission spectra signal is collected by a collection lens (7) and enters a spectrograph (9) through optical fiber (8) to split light; and finally a photoelectric sensor (11) fits with an ICCD detector (10) to collect spectral data. The method of the invention can reduce the breakdown threshold, increase the ablation efficiency and prolong the life of plasma. The detection device is applicable to the field component detection analysis field of the environment and mineral resources and the detection method has higher signal-to-background ratio and lower cost compared with the similar methods.

The invention discloses bentonite grease. The bentonite grease comprises grease base oil, a thickening agent and a polarity dispersing agent, wherein the grease base oil is furfural refined oil of naphthenic base crude oil; and the thickening agent is organic bentonite. Antioxidant and / or pigment is added into the bentonite grease. The furfural refined oil of a mineral source is taken as the grease base oil and the antioxidant is added into the bentonite grease, so that the bentonite grease has high oxidation stability and corrosion resistance; and moreover, the addition of the pigment can play a role in endowing a product with a special appearance and an auxiliary grease variety distinguishing function. The preparation method of the invention is simple and easy to operate.

The invention provides a low-grade potassium sodium feldspar quarry floatation and purification process and belongs to the technical field of ore separation. The process includes double ore grinding, double magnetic separation, ore concentrate floatation and the like. The process has the advantages that quality and recycling rate of potassium sodium feldspar concentrate are increased evidently, the process is simple, low in cost, especially suitable for the field of ore separation of the low-grade potassium sodium feldspar complex and difficult in separation, high-grade potassium sodium feldspar concentrate with high recycling rate can be floated from low-grade raw ore, ore resource utilization rate is increased, and the process is significant to developing and utilizing low-grade or secondary ore resources.

The invention provides a wet copper extraction process used in high mud-content copper oxide ores of cold areas. The process comprises the following steps: crude ores are crushed and sieved, coarse fraction ores are sent to a storage yard for piling, fine fraction ores are sent to an ore washing system for washing and grading; placer ores are sent to the storage yard for the piling after washing the ores, and mud ores are sent to an agitation tank for agitation leaching; leaching solution which is obtained from heap leaching and agitation leaching processes is sent for extraction and stripping; stripping concentration solution is sent to an electrodeposition process, and a qualified cathode copper product is obtained; leached slag from the agitation leaching is neutralized and sent to a tailings reservoir for piling. The process has good permeability, fast copper leaching rate, and greatly improved copper leaching rate and leached copper yield per day by the grading and the heap leaching of the coarse fraction ores; and the copper leaching rate is improved and the ore utilization rate is greatly improved by the agitation leaching of minus 0.074mm size fraction ores. The method is applicable to the development and the application in the wet copper extraction process used in the high mud-content copper oxide ores of the cold areas, solves the difficult technical problems of poor bing permeability and slow copper leaching rate, widens the use range of copper ore resources and improves the comprehensive utilization rate of the copper.

The invention belongs to the technical field of mineral separation in iron and steel metallurgy industry, and particularly relates to a new method for recycling iron minerals in magnetic separated gangues, which adopts a method for recycling the magnetic separated gangues through staged magnetic separation, regrinding, fine screening and a magnetic separation column process: sending the magnetic separated gangues recycled by a recycling machine to a concentrated low-intensity magnetic separator; feeding the separated iron minerals into a ball mill for ball milling and discharging, and sendingthe minerals to a first segment of dehydration tank by a pump through a pump box; sending the dehydrated concentrate to a second segment of magnetic separator; sending the selected concentrate to a high frequency vibrating screen, returning substances on the screen to a feeding box of the concentrated low-intensity magnetic separator, and feeding the products under the screen into a third segmentof magnetic separator; sending the magnetic separated concentrate into a feeding box of a magnetic separation column to cause the concentrate to automatically flow to the magnetic separation column; and returning the gangues in each segment of magnetic separator to the gangue recycling machine. The concentrate at the magnetic separation column is the final concentrate, and the gangue at the firstsegment of magnetic separation recycling machine is the final gangue. The invention has reasonable process flow, can improve the grade of the reclaimed iron minerals in the magnetic separated ganguesthrough reasonable separation, fully utilize mineral resources, reduce the waste and loss of metals, obtain good indexes and simultaneously obtain remarkable economic benefit.

The present invention relates to comprehensive utilization of mineral resource. Through stepped grinding, stepped magnetic separation, combined magnetic separation-gravitational separation, B and Fe in vonsenite are separated to produce B concentrate, which is used in producing borax, and B-Fe concentrate, which is used in producing iron and steel product and high activity boron-rich sludge. The present invention enriches B2O3 of raw mineral into B concentrate mainly and Fe into B-Fe concentrate through effective separation and provides high-grade and high-activity un-expensive material for boron producing industry while utilizing reasonably the separated Fe concentrate.

A composite drying agent is prepared from attapulgite and the strong water absorbent of water-soluble salt through proportional mixing, granulating, and baking or slight sinter.

The invention provides an aluminium-magnesia carbon brick and a preparation method thereof, belonging to the field of refractory materials. The raw materials of the aluminium-magnesia carbon brick include 30-80 parts of waste aluminium-magnesia carbon brick grains, 3-40 parts of special grade bauxite chamotte, 3-10 parts of magnesia, 3-10 parts of magnesia-alumina spinel, 5-8 parts of graphite, 3-15 parts of micro powder additives and 2.2-3.5 parts of organic bonds by weight. The preparation method is characterized by sorting, hydrating, drying and grinding the waste aluminium-magnesia carbonbricks from the steel mills and then mulling the waste aluminium-magnesia carbon brick grains with other raw materials, forming and carrying out heat treatment to prepare the aluminium-magnesia carbon brick. The energy-saving and environment-friendly aluminium-magnesia carbon brick prepared by the invention has high compression strength, low porosity, good resistance to molten steel corrosion andservice life reaching or exceeding the service lives of the traditional aluminium-magnesia carbon bricks. In the invention, the waste aluminium-magnesia carbon bricks are rationally utilized and consumption of the mineral resources is reduced.

The invention relates to a ferronickel smelting technology which takes the production waste of nickel oxide ore and stainless steel as raw material. The ferronickel smelting technology comprises the following steps: the nickel oxide ore and the stainless steel with the grain diameter of below 15mm are smelted to remove dust and stainless steel acid cleaning sludge to obtain mixed ore by mixing; the mixed ore and coke powder and industrial honey are mixed to make lump ore; the lump ore is calcined to obtain calcined ore; the calcined ore and coke are sent into an ore heating furnace to obtain the ferronickel by smelting. The technology is a novel ore heating furnace ferronickel-smelting technology, and realizes the recycling and reuse of the production waste of the stainless steel, thus solving the pollution problem of the waste to the environment; simultaneously, elements such as the ferronickel, etc. in the production waste of the stainless steel can be effectively recycled, thus avoiding the waste of mineral resources; traditional solvents such as fluorite and dolomite, etc. are not needed to be used, thus reducing the discharging pollution of fluoride and the possibility of introducing other metallic impurities into the ferronickel; by adopting the technology of the invention, power consumption can be reduced by 300 degrees for producing one ton of the ferronickel.

The invention discloses a mineral processing technology for comprehensively recycling iron phosphorus from low-grade high phosphorus vanadium titanium magnetite. The low-grade high phosphorus vanadium titanium magnetite is subjected to stage grinding and low intensity magnetic separation processes to obtain iron ore concentrate and magnetic separation tailings; the magnetic separation tailings uses low temperature flotation to recycle phosphorus after concentration, wherein the low temperature flotation is as follow: adding a slurry pH adjusting agent, an inhibitor and a collecting agent to the slurry of magnetic separation tailings, adjusting the pH of the slurry to 9-10, and performing flotation under 15-20 DEG C. The technology provided by the invention puts forward a mineral processing technology for comprehensively recycling iron phosphorus aiming at the low-grade high phosphorus vanadium titanium magnetite, which firstly adopts the low intensity magnetic separation method to recycle iron from ores and then adopts the low temperature flotation method to recycle phosphorus from tailings, thus realizing efficient utilization of such kind of mineral resources and increasing the economic benefits of concentrators. The low temperature flotation of the technology can reduce the subsequent costs of processing phosphate ores, improve the benefit of the comprehensive utilization of resources, reduce the production cost and achieve low cost and efficient recycling of phosphorus.

The invention relates to a novel flotation method of lead-antimony-zinc sulphide ores, particularly for selecting low-grade complex refractory lead-antimony-zinc sulphide ores. A method of ore selecting and washing is adopted, which combines washing and selection and eliminates interference of unfavorable factors such as harmful ions, drugs, slurry and the like on the selection of the low-grade lead-antimony-zinc so as to effectively improve the ore selection technical economical indexes of low-grade lead-antimony-zinc sulphide ores. The method has great significance on the improvement of utilization rate of ore resources and effective recovery of old, incomplete and waste ore resources and secondary resources, imposes important influence on the ore selection area suffering increasing insufficiency of ore resources, and is suitable for floating recovery of low-grade non-ferrous metals such as lead, non-ferrous metal, zinc and molybdenum.

The invention provides a polymetallic sulphide ore flotation process capable of increasing a zinc index, belonging to the technical field of ore dressing. Aiming at the disturbing influence of excess reagents and other minerals in a polymetallic sulphide ore flotation system on a zinc flotation index, the polymetallic sulphide ore flotation process adopts the process steps including sulphide ore mixed flotation, reagent removal and impurity removal, zinc-sulphur mixed flotation, zinc-sulphur separation and the like, other sulphide ores with good flotability relative to zinc are preferably floated, and then zinc flotation is carried out, so that the quality and recovery rate of zinc concentrate are significantly improved. Meanwhile, the comprehensive recovery of lead, antimony, sulphur, copper and other metals is realized, and the emission of heavy metals is reduced. The polymetallic sulphide ore flotation process also can be used for increasing the utilization rate of mineral resources, and has great significance for the exploitation and utilization of low-grade or secondary mineral resources.

The invention relates to a deeply buried iron mineral resource underground mining and concentrating integration system, which is characterized in that only one main hoisting shaft is arranged, positions adjacent to the main hoisting shaft are provided with an underground concentrating mill, an underground filling station and an underground water sump; the left side and the right side of the main hoisting shaft are uniformly provided with at least one blind shaft, and positions adjacent to the main hoisting shaft and the blind shaft are both provided with a main orepass; the footwall side of the top of an ore body is provided with a main horizontal haulage roadway, and both ends of the roadway are provided with air shafts; and the underground concentrating mill comprises a cycle chamber, a conical chamber, a screening chamber, a powder ore chamber, a grinding chamber, a sorting chamber and a product delivery chamber. The invention has the main characteristics that the concentrating mill, the underground filling station and the under water sump are arranged underground so as to realize short-distance hoisting of mined deeply buried mineral resources, the concentrated tailings and waste rocks are directly used underground, the overall mining cost can be reduced by 10 to 30 percent without damaging the earth surface, environment pollution is reduced, and the ecological environment is protected.

The invention discloses a stoping technology for a dam slope tailing of a tailing dam. The stoping technology comprises the following steps: assigning 1-2 rows of gravel piles (4) in the front of each stoping step; assigning a row of unwatering, pumping and reinforcing facilities comprising unwatering pump drainage water wells (3) and the gravel piles (4) at intervals; adopting submersible pumps to conduct groundwater pump drainage in the unwatering pump drainage water wells (3); excavating a tailing in the area on a first construction separated layer (8) of the tailing stoping in a dry type; conducting construction on slope surface protection measures (7) after the tailing stoping of the tailing pound tailing stacking dam slope; constructing tailing stacking dam side slope stepped drainage ditches (6); repeating the constructing steps, and excavating a tailing in the area on a second construction separated layer (9) of the tailing stoping of tailings stacking dam slope. The stoping technology solves the problem of safety and stability of the stacking dam side slope during tailing stoping of a valley type tailing stacking dam slope, reduces vast capital cost and land-use cost of new-building a tailing pond, realizes recovery of the most valuable tailings in the tailing pond, and improves mineral resource utilization ratio and economic benefits.

The invention belongs to the technical field of power and electronics control, and relates to a power supply device in the direct current electric exploration technology applied to the field of uranium ore resources and environment exploration. The power supply device comprises an accumulator, a solar battery component, an inversion controller and the like, wherein the inversion controller uses an STC single chip as a core and converts the electrical energy of the accumulator into alternating current staircase voltage to be output and supplied to the high-voltage electrode on a mind field, the frequency of the output voltage can be switched and changed in five levels, and the single side value of the output voltage can be switched and regulated in ten levels. The invention uses the solar photovoltaic generating technology to provide power supply, uses the single chip and a CAN communication module to realize the intellectualization and networking of the power supply control device, uses the inversion technology and the frequency conversion technology, uses the PID algorithm, carries out remote switching through an upper computer and a CAN bus network, has multi-frequency and multi-voltage optional output, has the characteristics of safety, high speed, high efficiency, stability and reliability, and provides much convenience for the workers conducting electric exploration of field uranium ore resources and other mineral resources.

The invention provides a mining method for transitioning underground ore bodies from an open stope mining method to a caving mining method, and aims at solving the problems of low working safety, large ore recycling lean loss rate, complicated construction organization and the like in a transitioning period of the two mining methods in the prior art. The mining method comprises the steps: 1, dividing regions, determining a critical exposure area, determining a stopping region and determining a region stopping sequence; 2, recycling interparietal columns; 3, generating waste stone coverage layers; 4, recycling ore pillars in adjacent regions; 5, drawing ores; 6, recycling a bottom structure. The mining method has the benefits that the potential safety and the problems of ore recycling lean loss rate and the like in a mutual transitioning process of the two mining methods are solved, and conditions are created for comprehensively using ore resources, prolonging the service life of a mine and enhancing the total economic benefit of an ore deposit.