510 results about "Gold ore" patented technology

The invention relates to the technical field of gold ore flotation full-process monitoring and control, and discloses a gold ore flotation full-process intelligent monitoring and optimal control method and system. The method comprises the following steps: collecting flotation process parameters, and carrying out abnormal value detection and grading treatment; the graded data are fused, and a digital twinborn model is established; designing a negotiation control framework based on the model, and adjusting parameters by using a contract network protocol; and constructing a soft measurement model and an optimization strategy, and optimizing control parameters through a self-learning mechanism. The technical problems that global optimization is difficult to achieve due to unit independent control in an existing gold ore flotation control system, control decision is inaccurate due to simple data processing, key quality indexes are difficult to estimate due to lack of soft measurement means, and adaptability is poor due to limited system learning ability are solved.

The invention relates to the technical field of mining industry, and discloses an intelligent prediction method for gold ore beneficiation process parameters based on cloud and edge fusion, which realizes space-time correlation modeling of beneficiation process parameters and accurately depicts dynamic interaction influence among equipment. The cloud edge collaborative architecture considers global optimization and real-time response requirements, and the prediction stability under complex working conditions is effectively improved. The introduction of physical constraints enhances the applicability of the model in an actual production environment, a bidirectional feedback mechanism ensures the adaptive ability of the system in a dynamic change environment, and through the joint reasoning of a knowledge graph and a neural network, the consistency of a prediction result and a process principle is enhanced, and the risk of misjudgment under an abnormal working condition is reduced; the man-machine cooperation mechanism significantly improves the labeling efficiency of high-value samples, shortens the model iteration period, and ensures the continuous optimization capability of the prediction system in the actual production environment.

The invention relates to the technical field of geological exploration, provides a gold ore metallogenic three-dimensional prediction method and system based on structure information fusion, and breaks through the limitation that a traditional three-dimensional modeling method stops in the aspect of geometric description through fusion processing of multi-source data such as geological structures, ore body evolution processes and geochemical anomalies. Ore control structure information is fused with a geochemical trend and a space structure for the first time, a structure-geochemistry-ore body form collaborative prediction mechanism is realized, and blind ore recognition and peripheral prospecting capabilities are effectively enhanced. Meanwhile, a target region division mechanism based on multi-source layer overlapping is constructed, the credibility and precision of a prediction result are remarkably improved, and the prospecting requirement of a high-work-degree gold mining area is met. By adopting a mode of combining engineering modeling and mid-segment graph modeling, space errors generated by traditional interpolation modeling in a data sparse or form complex area are effectively avoided, and the authenticity and continuity of an ore body structure are improved.

The invention discloses a surface mine digital safety production management method and device and a medium, and relates to the technical field of intelligent mines, and the method comprises the steps: collecting rock mass physical and mechanical parameters of a gold mine mining area and three-dimensional geometric morphology data of a blasting working face, and taking the parameters as physical constraint conditions to construct a digital twinborn body; a preset target blasting scheme is called to be input into the element reinforcement learning agent, multi-round simulation deduction is carried out through a blasting scheme evaluation strategy, and a simulation deduction result is generated; when the peak particle vibration velocity in the simulation deduction result exceeds a preset peak particle vibration velocity threshold value, generating a parameter adjustment suggestion; and the parameter adjustment suggestion is fed back to the element reinforcement learning agent for iterative optimization until the peak particle vibration velocity does not exceed a preset peak particle vibration velocity threshold, and a blasting scheme is generated. Through autonomous exploration of the meta-reinforcement learning agent in the blasting parameter space, the blasting scheme evaluation strategy with adaptability and reliability can be efficiently generated.

The invention belongs to the technical field of nondestructive testing, and discloses a gold ore and iron ore metal content detection method. The method comprises the following steps: acquiring an XRF energy spectrum by using an X-ray tube, acquiring an LIBS spectrum by using double-pulse Nd: YAG laser, and acquiring a Raman spectrum by using a semiconductor laser; performing baseline correction on the LIBS spectrum, performing Savitzky-Golay smoothing pretreatment on the Raman spectrum, and respectively extracting three types of spectrum characteristics; constructing a physical constraint network model, inputting XRF, LIBS and Raman features, and then outputting the correction content, fusion weight and LIBS dominant factors of Fe / Au elements; and finally, through a dynamic weight fusion strategy, combining XRF, LIBS fusion weights and network output parameters, calculating to obtain the content of the gold ore and the content of the iron ore. The technical breakthrough of multi-element cooperative detection and complex matrix interference suppression is realized, and the detection precision of Fe and Au is effectively improved.

The invention relates to the technical field of mining machinery, in particular to a gold mine mining blasting automatic trepanning device and a trepanning method.The gold mine mining blasting automatic trepanning device comprises a base plate, the base plate is an assembly carrier of the drilling device and can be externally connected with an engineering vehicle or an engineering mechanical arm, a mounting frame is fixedly mounted on the base plate, and the mounting frame is a frame body with an opening in the top; the guide frame is fixedly arranged at the top of the mounting frame, and the guide frame is an annular frame body internally provided with a clamping groove; the gear ring is rotationally mounted in a clamping groove in the guide frame; and the rotating frame is fixedly arranged in the gear ring. By means of the spiral blades on the drill rod, fragments generated in the drilling process are synchronously pushed out, the situation that the fragments are accumulated near the drill bit to affect efficiency is prevented, meanwhile, cooling water is allowed to enter a drilling area through the arrangement of the flow guide through hole and the connecting pipe in the drill bit, the fragments are helped to be flushed out of the hole, and the drilling efficiency is further improved.

The invention relates to a gold mine air-ground-in-well rapid collaborative exploration method, belongs to the field of geological exploration, and aims to solve the technical problems of data splitting, low target area positioning precision, insufficient deep prediction capability and the like in traditional gold mine exploration. By integrating air remote sensing, surface geological survey and underground detection data, a multi-source data standardization processing flow is established, and a progressive exploration system from wide-area screening to accurate positioning is realized by combining geological, geophysical and geochemical comprehensive analysis methods. The system adopts a dynamic feedback mechanism to optimize an exploration process, forms closed-loop analysis and prediction, improves exploration efficiency and accuracy, and reduces resource waste and exploration cost. The method is suitable for gold ore resource exploration under complex geological conditions, has remarkable economic benefits and application value, and can be widely applied to the field of mineral resource development.

The invention provides a dump leaching method for improving the leaching rate of gold ore, and belongs to the technical field of mineral processing. The method comprises the following steps: firstly, separating minerals into oversize products and undersize products; mixing sodium carboxymethyl cellulose, bentonite and ferrous sulfate to obtain a mixture, and granulating the undersize product by using the mixture as a binder; and mixing the undersize product particles with the oversize product, and carrying out cyanide-free dump leaching. According to the method, through graded granulation and heap building, the problem that heap building permeability is poor due to the fact that the gold ore contains many clay minerals is solved. In the granulation stage, ferrous hydroxide colloid generated by hydrolysis of ferrous sulfate in the binder can assist ore particle agglomeration, and particle stability is enhanced; during subsequent cyanide-free dump leaching, ferrous sulfate can be used as an auxiliary reducing agent and a catalyst in a thiourea gold leaching system to promote oxidation and dissolution of gold; meanwhile, ferrous ions can adjust the oxidation-reduction potential of a system, so that the thiourea gold leaching reaction is in a more favorable potential interval, the oxidation efficiency of thiourea is improved, invalid decomposition of thiourea is reduced, and therefore the use amount of thiourea and the use amount of agents are reduced.

The invention provides a method for measuring the object positions of gold ores above the medium fraction in heavy sand and application of the method, and belongs to the field of mineral processing.The method for measuring the object positions of the gold ores above the medium fraction in the heavy sand comprises the following steps that gold ores above the medium fraction in a heavy sand sample to be measured are selected, and the length, width and thickness of each gold ore are measured; calculating the observation volume of each gold mineral; a volume correction coefficient and color are introduced to calculate the mass of each gold mineral; and calculating the grade of the gold minerals above the medium grade. According to the method, the observed volume of the gold mineral is corrected by introducing the volume correction coefficient, so that the real volume closer to the reality is obtained, the density of the gold mineral is corrected through color formation, so that the real density closer to the reality is obtained, and the mass of the gold mineral obtained through volume and density calculation is more accurate; therefore, the calculated grade is more accurate.

The invention discloses a special grinding aid for gold ore and a preparation method thereof, and belongs to the technical field of mineral processing, the special grinding aid for gold ore comprises the following raw materials: a monomer, an initiator, a chain transfer agent and a solvent; the monomers are an unsaturated polyether monomer A and an unsaturated carboxylic acid monomer B; or a monomer C containing an ethylenically unsaturated sulfonic acid group. The preparation method comprises the following steps: putting the raw materials into a water bath kettle, and polymerizing in a separate dropwise adding manner to prepare the special grinding aid for the gold ore. The prepared grinding aid can improve the problems of particle agglomeration, low fine grinding efficiency, low gold dissociation efficiency and the like in the gold ore grinding process, the concentrated utilization of the grinding aid limited in the fields of cement, ceramics and the like is improved, the grinding energy consumption can be reduced, and the material quality can be improved.

The invention is suitable for the technical field of resource exploration, and provides a gold mine target region optimization method and device based on element geochemical anomalies, and the method comprises the steps: obtaining the geochemical sample data of a plurality of sampling points in a research region; training the converter model by using the geochemical sample data to obtain a trained converter model; initializing model parameters of the trained converter model to obtain a student model; performing self-distillation training on the student model by using the geochemical sample data to obtain a geochemical data reconstruction model; inputting the geochemical sample data of the sampling points into a geochemical data reconstruction model for processing to obtain reconstructed geochemical data of the sampling points; and calculating a geochemical anomaly score of each sampling point based on the reconstructed geochemical data of each sampling point, and determining a gold mine target area in the research area based on the geochemical anomaly scores of the plurality of sampling points. The method can meet the requirement of accurately and optimally selecting the target region in gold mine exploration.

The invention discloses a gold mine rapid prospecting method suitable for a plateau desert region, and belongs to the field of gold mine prospecting, and the method comprises the steps: obtaining geological and chemical prospecting data, and selecting a prospecting region based on the geological and chemical prospecting data; acquiring a high-resolution satellite image of the prospecting area, and acquiring geological, construction and mineralization alteration characteristics of an abnormal area of the prospecting area based on the high-resolution satellite image to construct a geological data set; a gold ore metallogenic area prediction model is constructed based on the long and short term memory network and the convolutional neural network; and inputting the geological data set into the gold ore metallogenic area prediction model for calculation, and generating a gold ore metallogenic area delineation result. Compared with a traditional geological prospecting method, the method has the advantage that the prospecting cost can be remarkably reduced by utilizing the high-resolution satellite image and the deep learning model to perform gold ore metallogenic prediction. Meanwhile, due to the fact that the accuracy of the prediction result is higher, unnecessary drilling and sampling work can be reduced, and resources and time are further saved.

The invention provides a method for measuring the metal distribution rate of gold minerals, and belongs to the field of process mineralogy. According to the method for measuring the metal distribution rate of the gold minerals, reselection, magnetic separation, flotation and nitric acid treatment are sequentially conducted firstly, the gold minerals are accurately separated out, and preparation is made for subsequent measurement of the content and color of the gold minerals; then comprehensively considering the content and the color of the gold minerals and the overall gold grade of the gold ores, so that the metal distribution condition of the gold minerals in the ores can be more comprehensively evaluated; then, the actual content and the metal amount of the gold minerals are calculated, the gold grade of the gold minerals is combined, and finally the gold mineral metal distribution rate with high accuracy is obtained; besides, according to the method, by means of automatic mineralogical analysis and electronic probe testing, the analysis speed and efficiency are improved, and the time and errors of manual analysis are reduced; the result of the gold mineral metal distribution rate measured by the method can provide an important decision basis for mine enterprises, so that the enterprises can utilize resources more effectively, and the economic benefit is improved.

The invention discloses a filling and transporting device for gold mine mining, which relates to the technical field of transporting devices and comprises a rack, conveying rollers are arranged on two sides of the rack, a conveying belt is arranged on the outer sides of the conveying rollers in a transmission manner, a row of cleaning rollers are arranged on the rack and positioned below the conveying belt, and a control component is arranged on the inner side of the conveying belt. According to the filling and conveying device for gold mine mining, impact force generated by falling of gold mine mining fillers is buffered through the first damping springs, the impact force generated by falling of the gold mine mining fillers can be effectively prevented from directly acting on the conveying belt, and therefore damage such as abrasion and deformation of the conveying belt caused by impact is reduced, and the service life of the conveying belt is prolonged; the equipment maintenance and replacement cost is reduced; buffering can absorb and disperse impact force, the influence of the impact force on the whole conveying system is reduced, the conveying belt is more stable in the operation process, and equipment vibration and shaking caused by the impact force are reduced.

The invention discloses a carlin type gold concentrate in-situ self-excitation and enhanced gold leaching method which comprises the following steps: adding an oxidizing agent and an alkaline reagent into a carlin type gold concentrate ore pulp system in a continuous, slow and proper adding manner at normal temperature and normal pressure, maintaining the oxidation potential of the ore pulp system to be-600 to-15.3 mV and the pH value to be 7 to 11, and carrying out in-situ self-excitation and enhanced gold leaching on the carlin type gold concentrate; and gold-loaded sulfide minerals in the gold concentrate are subjected to in-situ oxidation in a leaching system to generate stable thiosulfate as a gold leaching agent, so that in-situ self-excitation and enhanced gold leaching of the Carlin type gold concentrate are realized. According to the method, thiosulfate is formed through in-situ self-excitation, meanwhile, gold is extracted through in-situ complexing, consumption of external thiosulfate is reduced, pretreatment is not needed in the gold leaching process, the technology is simpler, the production cost is lower, the good gold extraction rate is guaranteed, meanwhile, no special requirement for equipment is needed, and the system is more controllable.

The invention discloses an environment-friendly gold leaching agent and an application method thereof. The environment-friendly gold leaching agent is formed by mixing halate, thiosulfate and an enhancer. The application method of the environment-friendly gold leaching agent comprises the following steps that gold ore is crushed and ground, the concentration of ore pulp is adjusted to be 30%-50%, then 0.2 wt%-5 wt% of the gold leaching agent is added, the pH of the ore pulp is adjusted to be 6-12, and stirring leaching is conducted for 8-36 hours at the normal temperature and the normal pressure. The environment-friendly gold leaching agent is formed by mixing common chemical reagents, the method is simple, the gold leaching rate is high, the reagent stability is high, gold leaching can be achieved under the neutral to alkaline condition, and the method is an environment-friendly gold leaching method.

The invention provides a method for measuring the oxidation rate of gold ore, and belongs to the technical field of process mineralogy. According to the method, the proportion of the unoxidized part (metal sulfide and crack) of the gold edge is obtained by measuring the contact length of the gold and the gold edge contact mineral, and the oxidation degree (the proportion of metal oxide and other gangue minerals) of the gold ore is obtained through conversion. Compared with traditional pretreatment modes such as crushing, ore grinding and ore dressing, the scheme does not destroy the original state of gold, and the test result is more accurate. Besides, the content proportion is represented by the proportion of the contact length of the edge contact mineral of the gold mineral and the gold, compared with the proportion of the test area, the error caused by the overlarge exposure area of the large-particle gold mineral can be weakened, the test result is more accurate, and the edge contact length of the gold and other minerals can also reflect the embedding state of the gold. The data measured by the testing method is closer to the actual production, and the definition of the gold ore oxidation rate is met.

The invention relates to a method for centrifugal desliming and waste pre-discarding and recovery rate improvement of gold ore, realizes direct waste pre-discarding of a part of low-grade slime, and belongs to the technical field of energy-saving production methods. Ore washing slime and placer are obtained after the ore is crushed and washed; the ore washing slurry is precisely classified into slurry with the size being-400 meshes and slurry with the size being 400 meshes; grinding and grading the placer to obtain ground and graded products; grinding and grading products and 400-mesh slime are subjected to main flotation operation, and main flotation concentrate and main flotation tailings are obtained; the-400-mesh slime is subjected to centrifugal classification, and slime centrifugal classification concentrate and centrifugal classification tailings are obtained; the centrifugal classification concentrate is subjected to mud flotation to obtain mud flotation concentrate and mud flotation tailings, and the mud flotation concentrate and the main flotation concentrate are combined into final flotation concentrate. According to the method, pre-discarding of the raw ore slime of the kaolin quartz vein type gold ore containing the ultra-fine particle raw mud is achieved, the production cost is reduced, the flotation recovery rate is increased, and economic benefits are created.

The present invention provides a method for treating heap leaching cyanide tailings of gold mines, a composite bacterial community, a bacterial agent and a preparation method. The composite bacterial community comprises a TDB-1 strain, a TCD-1 strain and a Z-90 strain, wherein the TDB-1 strain is a Pseudomonas putida strain, and the deposit number is CGMCC No.21602. The TCD-1 strain is a Methylorubrum pseudosasae, and the deposit number is CGMCC NO.24728. The Z-90 strain is a Burkholderia sp., and the deposit number is CGMCC No.9970. The above-mentioned composite bacterial community can effectively remove cyanide, thiocyanide and metal-cyanide complexes. The present method has the advantages of simple operation, high reduction efficiency, stable effect, good impact resistance and low cost.

The invention discloses a large-scale double-impeller leaching stirring tank, and relates to the technical field of gold ore leaching stirring tanks, the large-scale double-impeller leaching stirring tank comprises a transmission part, a bridge part, a stirring part and a tank body part, the transmission part comprises a motor, a high-speed coupler, a speed reducer, a low-speed coupler, a rack and a bearing support; the bearing support comprises a main shaft, a bearing body, a thrust bearing, an upper self-aligning roller bearing, an upper gland, a lower self-aligning roller bearing, a lower gland and a half coupling; the stirring part comprises an upper end shaft, a lower end shaft, an upper hub, a lower hub and blades; a shaft end fixing device is arranged in the center of the bottom of the tank body part; an inflating device is arranged at the lower part of the tank body. The device is used for gold ore pulp leaching operation, the treatment capacity is large, ore flow movement is stable, ore pulp mixing is uniform, air enters the ore pulp through a special inflation device, the ventilation capacity is large, the structure is simple, air dispersion is uniform through blade stirring, and the leaching rate can be effectively improved.

The invention belongs to the technical field of hydrometallurgy, and particularly relates to a pretreatment method for improving the leaching rate and the carbon adsorption rate of high-sulfur-arsenic gold ore. Comprising the following steps that the high-sulfur-arsenic gold ore is ground and then prepared into ore pulp; a green oxygen activating agent and hydrogen peroxide are sequentially added into the ore pulp, oxidation pretreatment is conducted on the high-sulfur-arsenic gold ore, ore pulp activating liquid is formed, and the green oxygen activating agent is a mixture of calcium oxide, sodium persulfate and soluble bivalent iron salt; and adding a gold leaching agent into the ore pulp activation solution, adjusting the pH value of the ore pulp to 9-12, carrying out stirring gold leaching treatment, filtering to obtain a leaching solution, and then adding activated carbon to adsorb and extract gold. According to the method, a stronger oxidation environment is provided, meanwhile, the residual concentration of arsenate radicals in the solution is effectively reduced, the leaching rate of gold and the adsorption rate of activated carbon are greatly increased, excellent oxidation performance and environment friendliness are shown, and a more sustainable high-sulfur-arsenic gold ore pretreatment process is provided.

The invention discloses a precious metal leaching agent based on thiosulfate and a precious metal leaching process. The leaching agent contains thiosulfate, a thiourea-based catalyst and an iron-based oxidizing agent, and the molar ratio of the thiosulfate to the thiourea-based catalyst to the iron-based oxidizing agent is (0.05-5): (0.005-1): (0.005-1). According to the leaching agent, on the basis of the synergistic effect of all the components, the dissolution efficiency of precious metal is improved, generation of polysulfate in side reaction is greatly reduced, and follow-up precious metal recovery is facilitated. A leaching process adopting the leaching agent comprises the following steps: exposing precious metal sites of a precious metal-containing material, adding the leaching agent, adjusting the pH value of a leaching system, carrying out a leaching reaction, and carrying out solid-liquid separation after the reaction is finished, so as to obtain a precious metal leachate. According to the technology, by controlling the pH value of the system and the adding amount of the leaching agent, leaching of different grades and types of precious metal-containing materials can be achieved under the normal temperature condition, and tests show that by taking gold ore as an example, the gold recovery rate of the technology can reach 100% at most.

The utility model discloses a fireproof heating device for gold ore test, which relates to the technical field of gold ore, and comprises a protection box, one side of the protection box is movably connected with a door body through a hinge, the protection box is internally provided with a material taking device for taking out a material storage barrel, and the material taking device comprises a connecting frame. A sliding block is fixedly connected to one side of the connecting frame, and a sliding groove is formed in the inner wall of the protection box. Through mutual cooperation of the protection box, the connecting frame, the sliding block, the sliding groove, the air cylinder, the L-shaped block, the moving groove, the arc-shaped frames, the storage barrel, the fixing plate and the electric push rod, the telescopic end of the air cylinder can push the L-shaped block to transversely move towards the side close to the storage barrel in the moving groove, meanwhile, the L-shaped block can drive the arc-shaped frames to move, and after the two arc-shaped frames make contact, the arc-shaped frames can be fixed through the fixing plate. A user places the storage barrel at the bottom of the inner wall of the arc-shaped frame, and then materials in the storage barrel can be heated.

The invention belongs to the technical field of hydrometallurgy, and particularly relates to a pretreatment method for enhancing peroxide to improve the leaching rate of high-sulfur-arsenic gold ore. Comprising the following steps that the high-sulfur-arsenic gold ore is ground and then prepared into ore pulp; an oxidizing agent is added into the ore pulp, oxidation pretreatment is conducted on the high-sulfur-arsenic gold ore under the catalytic action of ultraviolet light, and ore pulp activation liquid is formed; and the pH of the ore pulp activating solution is adjusted to 9-12, a gold leaching agent is added into the ore pulp complexing solution, and stirring gold leaching treatment is conducted. According to the method, efficient oxidation of sulfide and arsenide is achieved under the mild condition through the synergistic effect of photocatalysis and chemical oxidation, the leaching rate of gold is remarkably increased, compared with a conventional peroxide oxidation method for pretreatment, the leaching rate can be increased by 10%-35%, and meanwhile the agent use amount and environmental pollution are reduced.

The invention relates to the technical field of mine geological survey, and discloses mine geological survey equipment which comprises a shell, a grinding mechanism is arranged on the shell, and the grinding mechanism is used for grinding a mine hole; the grinding mechanism comprises a mounting pipe slidably arranged on the shell, a plurality of grinding wheel assemblies are arranged on the mounting pipe in the circumferential direction at equal intervals, each grinding wheel assembly comprises a rotating cylinder rotationally arranged on the mounting pipe, a first sliding groove is formed in each rotating cylinder, and a sliding rod is slidably arranged in each first sliding groove; one end of the sliding rod is elastically connected with the inner wall of the first sliding groove through a first spring, and the other end of the sliding rod is connected with a grinding wheel. According to the mine geological survey equipment, the inner wall and an inlet of a special-shaped mine hole drilled during geological survey of mines such as a gold mine can be polished, and a high-quality survey hole channel inner wall is provided for installation of underground detection equipment; and a mine hole inner wall treatment technology with high-precision fitting capability, dynamic self-adaptive adjustment characteristic and high-strength wear resistance is realized.

The invention discloses a rapid enrichment-atomic absorption spectrum analysis method for low-content gold in gold ore, and relates to the technical field of gold ore analysis and detection.The rapid enrichment-atomic absorption spectrum analysis method comprises the following steps that an ore sample and a solid composite additive are mixed and roasted at the low temperature of 500-650 DEG C, and the additive contains alkali metal carbonate and zinc oxide; sulfur fixation, catalytic oxidation of organic carbon and stabilization of volatile elements can be synchronously realized; the method comprises the following steps: roasting gold-loaded activated carbon, dissolving the gold-loaded activated carbon in aqua regia to obtain a to-be-enriched solution, enabling the solution to pass through an adsorption column filled with modified activated carbon, pretreating the activated carbon with a 1-10% ammonium citrate solution to improve the selective adsorption capacity of the activated carbon on gold chloride complex ions, ashing the gold-loaded activated carbon, dissolving residues, fixing the volume, and measuring by using an atomic absorption spectrometry. According to the rapid enrichment-atomic absorption spectrum analysis method for the low-content gold in the gold ore, through cooperation of low-temperature roasting of the composite additive and selective adsorption of the modified activated carbon, the decomposition efficiency and enrichment selectivity of the ore difficult to treat are improved.

The invention provides a gold ore phase analysis method, and belongs to the field of mineral analys.The gold ore phase analysis method comprises the steps that a gold ore sample is prepared into ore pulp, the pH value is adjusted to 10-11, ultrasonic cavitation treatment is conducted after polyethylene glycol is added, and limonite turbid liquid and sedimentation bottom mud are obtained through separation; the turbid liquid is subjected to flocculation precipitation, drying, roasting, acid dissolution and impurity removal, and the limonite gold-loaded grade is obtained through the mass difference before and after dissolution and gold concentration determination; separating metal sulfide ore heavy minerals and gangue minerals from the settled bottom mud through artificial heavy elutriation, performing acid dissolution and impurity removal on the metal sulfide heavy minerals, and calculating the gold loading grade of the metal sulfide heavy minerals through mass difference and gold concentration determination; after gangue minerals are subjected to oxidizing roasting, the gold content is measured after concentrated acid dissolution; and calculating the distribution rate of gold based on the result. The gold loading grade and distribution of the limonite phase, the metal sulfide ore phase and the gangue mineral phase are measured in a split-phase mode, the method is highly matched with the gold ore development process, operation is easy and convenient, the result is reliable, and beneficiation and metallurgy technological process formulation and technical index pre-judgment can be effectively served.

The invention relates to the technical field of ball mills, in particular to a gold ore production ore ball mill with adjustable feeding amount, which comprises a base, the base is used for supporting the whole ball mill component, the top of the base is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with a driving gear; according to the ore grinding machine, the feeding assembly, the protruding block and the top plate are arranged, so that a screen can do reciprocating motion in the feeding hopper, ore materials added into the feeding hopper are screened, and the granularity of the ore entering the ball grinding machine is more uniform; therefore, invalid work of the ball mill can be reduced, grinding efficiency is improved, grinding time is shortened, and energy consumption is reduced. Overlarge ore particles may cause excessive wear and impact on a lining and a grinding medium of the ball mill, and even cause equipment failure; the damage can be reduced by screening in advance, the service life of the ball mill is prolonged, and the maintenance cost is reduced.

The invention discloses a gold mine target region optimization method and system based on spatial constraint modified embedded geochemical anomalies and a memory. The method comprises the following steps: acquiring geochemical data of a target area, and preprocessing to obtain a spatially serialized standardized data matrix and an adjacent matrix; according to the method, global Transform coding modeling is adopted to obtain a hidden state sequence of global element interaction characteristics of each sampling point of a target area, then unitary potential energy and binary potential energy are constructed in sequence, a geochemical abnormal area identification model of each sampling point of the target area is established in combination with CRF, and the geochemical abnormal area marked by the model is subjected to abnormal scoring and marking. And through comprehensive evaluation, gold mine target region optimization is completed. Based on the system containing the computer program memory provided by the method, the problems of large calculation amount and low accuracy in the prior art can be effectively solved, and through tests, the area under the ROC curve of the gold mine target region optimization process by adopting the system can reach 0.92, and the obvious advantages of the system are shown.

The invention discloses a method for quantitatively testing the content of organic carbon and disseminated particle size in gold ore, and belongs to the technical field of gold ore detection. The method comprises the steps of sample preparation and quantitative testing, wherein palm wax serves as a cementing agent, barite serves as a standard sample, and a to-be-tested sample is prepared through melting, mixing, consolidation, polishing and carbon spraying; the quantitative test is based on an automatic process mineralogy test system, palm wax backgrounds are removed through backgrounds deduction, an energy spectrum library is established to recognize organic carbon and barite particles, the area ratio of the organic carbon and the barite particles is measured, the mass ratio is converted by combining the density ratio, the organic carbon content of raw ore is inversely calculated, and meanwhile, the particle size distribution of the organic carbon is counted. The method solves the problem that the content and granularity of organic carbon cannot be accurately quantified at the same time in the prior art, has the advantages of high test precision, high efficiency, comprehensive parameters and simplicity and convenience in operation, and can provide key data for optimization of a gold ore cyanidation leaching process.