313 results about "Copper ore" patented technology

The invention discloses a prospecting method, system and equipment for identifying polygonum capitatum plant indication copper ore through remote sensing, and belongs to the technical field of remote sensing prospecting. Comprising the following steps: acquiring remote sensing data in a target area, and establishing a spectrum database of polygonum capitatum plants and altered minerals related to copper ore; finely identifying the Polygonum capitatum plant and the distribution characteristics thereof by using a spectral data analysis processing technology; in combination with radar, multispectral and hyperspectral remote sensing data, performing construction-alteration mineral identification and fine mapping in a target area; fusing the polygonum capitatum plant, the distribution information of the polygonum capitatum plant and the construction-alteration mineral mapping result, establishing an ore prospecting prediction model for indicating the copper ore based on the polygonum capitatum plant, delineating copper ore abnormity in a target area, and performing deep learning method verification on a prediction result; and integrating multi-source data and field investigation, further verifying the predicted target region, and optimizing the prospecting model. The method can reduce the cost, improve the efficiency and accuracy, and simplify the prospecting process.

The invention belongs to the technical field of mineral exploration, and particularly discloses a copper ore prospecting method based on three-dimensional geological modeling. The method comprises the following steps: acquiring geological data of a target area; after extreme values in the geological data are recognized and removed through a box plot, the geological data are mapped to an interval of [0, 1], and the geological data are divided into terrain data, stratum data and mineral resource data; adopting Kalman filtering to enable the data to form fusion data, and generating a thematic map comprising a geological map, a mineralization anomaly map and a topographic slope map; based on the data and the thematic map, constructing a three-dimensional geologic model by a finite element method, and performing mining path planning by adopting a specific path planning algorithm formula; exploring by the mining equipment according to the planned path, acquiring geological data, comparing the geological data with the predicted data, re-planning the path and continuing exploring if the path is blocked, the resource recovery is out of tolerance and new mineralization is abnormal, otherwise continuing exploring according to the planned path. The method has the advantages of being high in exploration efficiency and data precision, low in comprehensive cost and high in adaptability.

The invention belongs to the technical field of mineral resource exploration, and provides a multi-source remote sensing data and AI combined copper ore exploration method and system, and the method comprises the following steps: obtaining multi-source remote sensing data of a target region through a plurality of remote sensing devices; preprocessing the multi-source remote sensing data to obtain fusion data; the fusion data are analyzed through an AI algorithm, and mineralization alteration areas and geological structure information are obtained through recognition; performing overlay analysis on the mineralization alteration area and the known geochemical anomaly area, analyzing the spatial relationship between the mineralization area and the structure in combination with the geological structure information, and judging the favorable mineralization part of the copper ore to obtain an analysis result; performing field investigation on the potential copper ore area determined by the analysis result, collecting rock samples for laboratory analysis, and verifying the accuracy of the analysis result; according to the method, the multi-source remote sensing data and the AI technology are comprehensively utilized, the target area is rapidly analyzed, the potential copper ore area is positioned, the workload of blind exploration is reduced, and the exploration efficiency is improved.

The invention provides a multi-source geophysical prospecting data fused Zenzenite rock mass contact zone anomaly method and system, and relates to the technical field of geophysical prospecting, the method comprises the following steps: executing joint denoising processing and time-frequency feature enhancement processing on a TFEM data set in a three-dimensional fused data volume, and outputting the optimized three-dimensional fused data volume; and based on the optimized three-dimensional fusion data body, by establishing a mapping relationship between magnetic, electric and polarization anomalies and a geologic body, quantifying the correlation between a multi-parameter combination and a mineralization index and screening an up-to-standard abnormal region, and finally delineating a magnetic anomaly gradient zone, a low-resistance region and a high-polarization anomaly co-occurrence ore prospecting target region three-dimensional distribution diagram. Through multi-source geophysical prospecting method collaboration, data deep fusion, quality optimization and accurate mapping, full-chain technology upgrading from data acquisition to target area delineation is realized, and the high efficiency of mineral exploration is improved.

The invention discloses a method for evaluating the mineralization potential of porphyry copper-(gold-molybdenum) ore. The evaluation method comprises the following steps: determining candidate rock masses with relatively high mineralization potential according to an oxygen fugacity value of magma zircon and / or a magma water content value of hornblende in a rock sample in an evaluation area; the aluminum saturation index ASI of the candidate rock mass is measured and calculated, the distribution coefficient and the distribution coefficient ratio of Cu, Au and Mo between fluid and melt are determined according to the ASI, simulation calculation is conducted through a Rayleigh fractionation model according to the distribution coefficient and / or the distribution coefficient ratio, and the content ratio of Au to Cu to Mo to Cu of the candidate ore body is obtained. According to the method, the mineralization potential of the porphyry copper ore and the enrichment degree and grade of Cu, Au and Mo of potential ore bodies can be rapidly and accurately evaluated.

The invention provides a flotation separation method for complex and difficult-to-separate high-sulfur copper ore, and belongs to the field of mineral flotation, lime is adopted to adjust ore pulp to a low-alkali environment, and efficient recovery of valuable elements of copper, silver and sulfur is achieved under the combined action of an inhibitor and a synergist. A low-alkali copper separation process is adopted, copper-sulfur intergrowth and silver-containing minerals are prevented from being strongly inhibited in a high-alkali ore pulp environment, regrinding is introduced before copper concentration operation to promote dissociation of the copper-sulfur intergrowth, and the grade of copper concentrate is improved. During copper roughing, gangue minerals and pyrite are inhibited by adopting an inhibitor to prevent the gangue minerals and the pyrite from forming a cover on the surface of metal minerals, and selective inhibition on the pyrite is generated in the forms of strong oxidation, electrostatic adsorption, hydroxylated metal point adsorption and the like on the surface of the pyrite; the synergist is adopted to change the surface charge of gangue minerals, the argillaceous gangue is prevented from forming a mucus coating on the surface of the chalcopyrite by means of electrostatic repulsion, meanwhile, the flotation froth performance is enhanced, floating of the chalcopyrite is accelerated, and the copper separation effect is optimized.

The invention discloses a multi-component nano inhibitor for flotation separation of high-argillaceous copper sulphide ore and application, the nano inhibitor is a nano calcium carbonate-calcium oxide-sodium humate coating body, the nano inhibitor is applied to flotation separation of the high-argillaceous copper sulphide ore, collaborative optimization of slime inhibition and copper ore selective collection is achieved, and the flotation separation efficiency of the high-argillaceous copper sulphide ore is improved. And high-quality copper sulfide concentrate and sulfur concentrate are obtained. According to the method, the high specific surface area and the surface activity of the nano particles are utilized, under the weak alkaline environment without desliming, through the simple, convenient, economical and efficient mineral processing technology and reagent combination, efficient recovery of copper, gold and sulfur in the high-argillaceous ore is achieved, the use amount of lime is greatly reduced, and the technical problem of tailing sedimentation is solved.

The invention relates to the technical field of mineral exploration, in particular to sampling equipment for copper mine exploration, which comprises a base, a driving box body fixedly connected to the base, a drilling motor fixedly connected in the driving box body, a drilling rod coaxially and fixedly connected to an output shaft of the drilling motor, and a drill bit fixedly connected to the bottom end of the drilling rod. A plurality of sampling grooves are formed in the side wall of the drill rod in the circumferential direction, driving assemblies are embedded in the inner side walls of the sampling grooves, rotating shafts are fixedly connected to output parts of the driving assemblies, connecting blocks perpendicular to the rotating shafts are fixedly connected to the rotating shafts, sampling rods are rotationally connected to the connecting blocks, and tooth grooves are formed in the outer walls of the bottoms of the sampling rods; and the sampling rods are engaged with reciprocating gears through the tooth grooves, the reciprocating gears are fixedly connected with fixing rods, and the fixing rods are rotationally connected with the side walls of the sampling grooves. Transverse collection is added while vertical drilling sampling is conducted, energy-saving and intelligent transverse collection is achieved through the control system, and the sampling efficiency of copper ore exploration is improved.

The invention provides a beneficiation method for high-sulfur copper ore containing mud and pyrrhotite, and belongs to the technical field of ore separation processes. According to the method, the mineral processing technology of copper rapid flotation, enhanced flotation, copper rough concentrate differential regrinding, step-by-step concentration, copper tail sulfur flotation and sulfur tail magnetic separation and a CD-ND + CD-SD combined inhibitor are adopted for synchronously inhibiting argillaceous gangue and pyrite, ethionine ester, isopropyl xanthate and ethionine xanthate collect copper minerals step by step, interference of the argillaceous gangue to the preferential copper flotation process is reduced, and the copper flotation efficiency is improved. The effective inhibition on sulfur is realized under the condition of relatively low pH. The copper and sulfur separation technical scheme combining low-alkali-acid-free flotation and magnetic flotation is constructed, interference of argillaceous gangue on the sulfide ore flotation process is reasonably and effectively controlled, the technological process is short and stable, the copper and sulfur separation index is excellent, the copper and sulfur ore separation recovery rate and grade index are improved, and the method is suitable for industrial production. The method effectively solves the problem of clean and efficient beneficiation and recovery of high-sulfur copper ore containing mud pyrrhotite, and provides a new effective method for clean and efficient recovery of similar copper and sulfur resources.

The present invention belongs to the field of geological sampling technology, and particularly relates to a sampling device and a sampling method for copper ore exploration, comprising: a vehicle body, a mobile support portion is provided at the bottom of the vehicle body, a lifting device is fixedly connected to one side of the top of the vehicle body, a lifting plate is fixedly connected to the movable end of the lifting device, an automatic leveling drive assembly is installed on the lifting plate, a drilling sampling assembly is installed at the center of the automatic leveling drive assembly, the automatic leveling drive assembly is transmission-connected to the drilling sampling assembly, and a central slot for the drilling sampling assembly to pass through is provided in the middle of the vehicle body. The device does not require manual leveling, simplifies the leveling steps, facilitates the drilling sampling assembly to directly and vertically drill into the soil, and greatly improves the sampling efficiency.

The invention discloses an activation method of silicon malachite minerals and a flotation method of high-alkalinity copper oxide ore or copper cobalt oxide ore, and belongs to the technical field of ore dressing. According to the method, crystalline phase transformation and site reconstruction are carried out on the surface of the silicon malachite, so that the surface of the silicon malachite is activated to enhance the flotation separation effect of the silicon malachite, and the problem that the silicon malachite is difficult to float and recover due to high surface hydrophilicity is solved. The method for activating the silicon malachite can also be used for flotation of complex high-alkalinity copper oxide (or copper-cobalt) ore, the high-alkalinity copper oxide (or copper-cobalt) ore is treated through the positive and negative combined flotation process, and the purposes that the recovery rate of copper and cobalt in the high-alkalinity copper oxide (or copper-cobalt) ore is larger than 90%, and the removal rate of calcium and magnesium is larger than 70% can be achieved. Compared with an existing copper oxide (copper-cobalt ore) flotation process, the method has the advantages of being simple in process, high in adaptability, small in toxicity, low in cost, high in economic benefit and easy to industrially popularize and apply.

The invention discloses a method for obtaining copper and ferrous sulfate from low-grade sulfur-oxygen mixed iron-copper ore, which comprises the following steps: dry-grinding the iron-copper ore, performing low-temperature roasting modification on the dry-ground ore powder to obtain modified ore powder and roasting flue gas, collecting and cooling the roasting flue gas to obtain a crystallization product, and returning the crystallization product to roasting for recycling. The modified mineral powder is subjected to enhanced acid leaching, the acid leaching condition is controlled, and acid leaching residues and leachate are obtained; extracting and reversely extracting the leachate, controlling extraction and reverse extraction conditions to obtain raffinate, copper-rich liquid and an organic phase, recycling the organic phase after acid pickling and iron removal, performing flocculating settling on the raffinate to obtain supernate and settling slag, and performing evaporative crystallization treatment on the supernate to obtain ferrous sulfate. The method can efficiently recover copper in the refractory low-grade sulfur-oxygen mixed iron-copper ore, fully utilizes iron resources, and has the characteristics of simple process, high applicability, high copper recovery rate and the like. And the follow-up emulsification risk of the copper extraction agent can be effectively reduced, and follow-up recovery of copper is facilitated.

The invention discloses a lightweight copper ore sorting method based on dual-energy X-rays. The lightweight copper ore sorting method comprises the following steps that a dual-energy X-ray transmission graph of copper ore is collected; a CBAL2-Net model is constructed; an improved ResNet-50 model is constructed; taking the CBAL2-Net model as a student model, taking the improved ResNet-50 model as a teacher model, and designing a comprehensive knowledge distillation strategy to perform distillation operation on the student model and the teacher model to obtain a Res-CBAL2-Net model; the collected images are input into a Res-CBAL2-Net model, and the copper ore is sorted; according to the method, based on the constructed student model and the improved teacher model, a comprehensive strategy fusing multiple different distillation strategies is designed to conduct knowledge transfer on the model, the target model Res-CBAL2-Net is obtained, and compared with an existing mainstream model, the accuracy of copper ore separation is greatly improved.

The invention discloses a low-grade copper ore image sorting method based on deep learning. The low-grade copper ore image sorting method comprises the following steps that a dual-energy X-ray image of low-grade copper ore is obtained; constructing a time step embedded U-Net network, and inputting the dual-energy X-ray image of the low-grade copper ore into the time step embedded U-Net network to generate a diversified copper ore dual-energy X-ray image; constructing a self-adaptive copper ore sorting model; the diversified copper ore dual-energy X-ray images are input into a self-adaptive copper ore sorting model, and copper ore is sorted; according to the method, the separation process is optimized by fusing the dual-energy X-ray imaging technology and the data enhancement technology, compared with traditional single-energy imaging, the difference of copper minerals and waste rocks in an image feature space is enhanced, the recognition difficulty of a model on complex textures is reduced, the number of links of crushing and flotation of invalid ores can be reduced, and the separation efficiency is improved. The energy consumption and the use amount of chemical agents are obviously reduced.

The invention discloses a grading magnetic-flotation combined beneficiation method for sulfur-oxygen mixed copper ore. The grading magnetic-flotation combined beneficiation method comprises the steps of ore grinding and screening, magnetic separation, grading, copper sulfide flotation, copper oxide roughing and copper oxide enhanced scavenging. According to the method, strong magnetic separation is adopted in the mill grading system to recover part of coarse-grain copper oxide, excessive grinding of copper oxide minerals in the ore grinding process is reduced, early recovery can be achieved, the comprehensive recovery rate of copper oxide is increased, meanwhile, release of copper ions in the ore grinding process is reduced, and the adverse effect on follow-up copper sulfide flotation is relieved. The efficient copper oxide vulcanizing agent is composed of sodium sulfide and sodium pyrosulfite, the stability of a film in the vulcanizing process is enhanced, meanwhile, the inhibition effect on pyrite is enhanced, and the flotation separation efficiency of copper oxide is improved. In addition, by adopting an efficient reagent and precise regulation and control, copper oxide concentrate is directly obtained through open circuit of copper oxide roughing and enhanced scavenging concentrate, and the copper metal falling loss caused by closed cycle is reduced.

The invention discloses a method for improving the removal efficiency of COD (Chemical Oxygen Demand) and total oil in overflow water of a tailing pond of a copper mine, which comprises the following steps: S1, adjusting the pH (Potential of Hydrogen) of copper ore copper separation alkaline wastewater to 4.5 to 5.5 by adopting an acidic medicament; s2, the wastewater with the pH adjusted enters an iron-carbon micro-electrolysis reaction tank; s4, the wastewater subjected to advanced oxidation treatment enters a neutralization reaction tank, the pH of the wastewater is adjusted to 8-9 through an alkaline agent, the reaction is sufficient, and then a modified macromolecule anion flocculant solution is added. According to the technology, through the technical scheme of wastewater pH adjustment, iron-carbon micro-electrolysis oxidation, reduction reaction, advanced oxidation with sodium persulfate and flocculent precipitation, the concentration of pollutants such as COD and total oil in the copper ore copper separation alkaline wastewater can be remarkably reduced, and the problem that the removal efficiency of COD and total oil in existing copper ore copper separation wastewater is not high is solved; the risk that the wastewater affects the environment is effectively reduced, and a foundation is provided for effective utilization of the treated wastewater.

The invention discloses a method for extracting copper fine powder by flotation of copper-containing ore, which belongs to the technical field of mineral processing, and comprises the following steps: after copper-containing raw ore is crushed, ground and classified by a cyclone, overflow enters flotation, and settled sand is returned for regrinding; sodium carbonate is added into graded overflow to adjust the pH, a sodium hexametaphosphate-polyacrylamide composite dispersant is added, and copper sulfate is added and stirred after low-temperature microwave heating; gradient flotation is conducted, specifically, copper sulfide is roughly selected, the pH is adjusted, an amino-sulfonic acid group synergistic modified layered double metal hydroxide / cobalt ferrite composite collecting agent is added, and rough concentrate 1 is obtained through high-frequency pulse air inflation flotation; copper oxide roughing is conducted, clear water is supplemented to adjust the pH, and a collecting agent is supplemented to obtain rough concentrate 2; scavenging is performed for three times, a collecting agent is added for flotation, and concentrate returns to the previous stage; the rough concentrates are combined, and magnetic impurities are removed through high-gradient magnetic separation to obtain magnetic concentrates; and carrying out microbiological leaching on tailings to recover copper. The composite collecting agent is prepared through layered double hydroxide carrier synthesis, amino modification, sulfonic acid group grafting and cobalt ferrite anchoring.

A geothermally powered copper production system includes a geothermal system with a wellbore extending from a surface into an underground magma reservoir. A hopper receives a copper oxide ore that is crushed and provided to a leach heap to produce a copper-rich pregnant leach solution. The pregnant leach solution is provided to a settler that is heated by a heat transfer fluid heated by the geothermal system, and a product of the settler is used to prepare a copper product. A hopper receives a copper sulfide ore that is crushed and provided to a flotation tank. The flotation tank is heated by a heat transfer fluid heated by the geothermal system, and a product of the flotation tank is used to prepare a copper product.

The invention discloses a copper ore preselection method based on a generative adversarial network and low-rank linear pooling. The copper ore preselection method comprises the following steps that a high-energy X-ray transmission image and a low-energy X-ray transmission image of copper ore are obtained; fusing the high-energy X-ray transmission image and the low-energy X-ray transmission image by adopting an improved generative adversarial network to obtain a dual-energy X-ray fusion image; constructing a copper ore pre-selection model; inputting the high-energy, low-energy and dual-energy X-ray fusion images of the copper ore into the model for feature extraction, fusing each extracted feature vector by adopting low-rank trilinear pooling, and then classifying to obtain a pre-selection result of the copper ore; according to the copper ore pre-selection model designed by the invention, through improving low-rank bilinear pooling and using a low-rank trilinear pooling feature fusion strategy, combined representation solution of three image features is realized, multi-modal data input requirements can be met, and the classification performance of copper ore target ore and waste rock is further improved.

Methods, compositions and systems are provided that improve recovery of copper from previously leached copper ores. A reset solution comprising a chelating agent and a reducing agent is provided to a heap of previously leached and passivated ore to improve copper recovery kinetics in subsequent leaching stages.

The invention belongs to the field of flotation, and particularly relates to a composite inhibitor for copper sulphide ore, an inhibition method, a copper-molybdenum separation method and a flotation reagent thereof.The composite inhibitor for the copper sulphide ore comprises a component A, a component B, a component C and a component D according to the weight ratio of (3-7): (1-2): (1-2): (1-3); wherein the component A is a compound shown in a formula 1 (1); the component B is a compound shown in a formula 2; the component C is konjac mannan; component D is a compound represented by formula 3. The research shows that the component A and the component D are innovatively combined, and flotation of the copper sulphide ore can be accidentally inhibited with high selectivity on the basis of combination and synergy of special groups between the component A and the component D.

The invention discloses a method for comprehensively recovering valuable metals in high-iron bonded copper oxide ore, and belongs to the technical field of resource recovery. According to the method, the high-iron bonded copper oxide ore is subjected to precise ore phase conversion, so that limonite in the high-iron bonded copper oxide ore is converted into magnetite. In the ore phase conversion process, pores and cracks are generated on the surface of the high-iron bonded copper oxide mineral, and grain boundary dislocation occurs between iron minerals and copper minerals, so that release of the bonded copper minerals is promoted; the ore phase conversion product is subjected to mechanical activation, selective enhanced leaching and solid-liquid separation, and iron-rich leaching residues and copper-rich leaching liquid are prepared; and the iron-rich leaching residues are further subjected to low-intensity magnetic separation, and efficient recovery of iron ore concentrate is easily achieved. According to the method, the iron ore concentrate and the copper-rich leachate are finally obtained, and efficient comprehensive recovery of iron and copper valuable metals in the high-iron combined copper oxide ore is achieved.

A method for rapid prediction of porphyry copper mineralization potential based on spectral characteristics of tourmaline, includes collecting and collating data related to magma-fluid evolution, petrography and mineralogy of a porphyry copper deposit in a working area, systematically, distinguishing magmatic tourmaline from hydrothermal tourmaline in the working area, and further distinguishing phases and generations of the hydrothermal tourmaline; collecting hydrothermal tourmaline samples of the same phase and generation; performing short-wave infrared spectroscopy measurement on the collected hydrothermal tourmaline samples; extracting spectral characteristics of the Fe—OH wavelength and Mg—OH wavelength of the tourmaline samples based on The Spectral Geologist (TSG); and when the Fe—OH wavelength is less than 2245.75 nm, and the Mg—OH wavelength is greater than 2356.57 nm in the short-wave infrared spectrum of the samples, indicating that the porphyry copper deposit in an area where the samples are located has a great metallogenic potential.

The flotation recovery method comprises the following steps: carrying out ore grinding and dissociation treatment on raw copper ore, then carrying out roughing, and grading roughing tailings to obtain three-fraction ore pulp products of + 200 meshes, 200-400 meshes and-400 meshes; the + 200-mesh ore pulp product is subjected to coarse grain flotation, a combined collecting agent of disulfide diisopropyl xanthate and isopropyl xanthate is adopted for recycling coarse grain copper minerals, and obtained rough concentrate is returned to the ore grinding operation; carrying out fine particle flotation on the ore pulp product with the size of-400 meshes by adopting a fine particle flotation collecting agent, and combining obtained rough concentrate with copper roughing rough concentrate for concentration; ore pulp products of 200-400 meshes are directly used as tailings. According to the method, the lost coarse and fine copper minerals in the ore pulp can be intensively recovered, and the copper flotation recovery rate can be increased.

The invention discloses a copper ore classification method based on a lightweight sliding window converter. The method comprises the following steps: acquiring a dual-energy X-ray image of copper ore and constructing a data set; constructing a lightweight copper ore classification model, inputting the dual-energy X-ray image of the copper ore into the lightweight copper ore classification model, and classifying the copper ore; the method for constructing the lightweight copper ore classification model comprises the following steps: constructing an improved sliding window converter and a lightweight sliding window converter; taking the improved sliding window converter and the lightweight sliding window converter as a teacher model and a student model respectively; performing knowledge distillation on the teacher model and the student model to obtain a lightweight copper ore classification model; according to the method, a lightweight copper ore classification model is designed, and the parameter quantity of the model is reduced while the classification performance of the model is improved by combining comparative learning and knowledge distillation.

The invention relates to the technical field of copper oxide beneficiation, in particular to a surface altered copper oxide ore flotation composite regulator and application and recovery methods thereof. The composite regulator is composed of sodium pyrophosphite, PAC, sulfonated tannin, sodium lignin sulfonate and sodium fluosilicate; the weight ratio of the sodium pyrophosphite to the PAC to the sulfonated tannin to the sodium lignin sulfonate to the sodium fluosilicate is (5-10): (1-3): (5-10): (15-20): (5-10); under the action of targeting of a composite regulator and surface active points of alkaline earth metal minerals and aluminosilicate minerals, the slime is selectively dispersed, gangue minerals are inhibited, attachment of the slime to the surfaces of the copper minerals is eliminated, and interference of the slime to the action of the copper minerals and agents and flotation is reduced; the recovery method is stable and reliable, the copper recovery rate is high, the cost is low, the process is easy to control, and the technical problem that surface altered copper oxide ore beneficiation and recovery are difficult is solved.

The invention relates to a large-scale industrial development method for low-grade complex secondary copper sulfide ore, and belongs to the field of mineral engineering. According to the method, ores with different clay contents are classified, raw ores of high-clay ores are directly heaped, the permeability of ore heaps is improved, low-clay ores are crushed and heaped, and the ore leaching rate is increased; aiming at the problem of high pyrite content, pile sealing is performed in advance to control pyrite oxidation, biological population regulation and control are performed to inhibit pyrite oxidation, a solution is reasonably dispatched to reduce acid, copper rainwater is discharged to the bottom of a mining pit to be stored, and after rainwater in the pit is diluted, the pH is increased, and Fe < 3 + > generates precipitate to settle at the bottom of the pit, so that the iron and acid reducing effect is achieved, and environmental protection accidents are reduced.

The invention relates to a method for regulating and deacidifying in a bioleaching process of low-grade copper sulphide ore, aiming at the problem of excessive acid caused by excessive oxidation of pyrite in a dump leaching system, a thiocyanate bactericide is added into the bioleaching system of the low-grade copper sulphide ore, and the thiocyanate bactericide is dissolved in a spray liquid of the bioleaching system, and is added into the spray liquid of the bioleaching system; under the catalytic action of mineral leaching microorganisms, oxidation of ferrous ions is enhanced, so that the oxidation-reduction potential of a solution is increased, oxidation of pyrite is intensified, acid accumulation is excessive, the thiocyanate bactericide can remarkably inhibit the activity of part of sulfur-oxidizing bacteria and even kill part of sulfur-oxidizing bacteria, and therefore the activity of ferrous oxide is reduced; compared with the prior art, the method has the advantages that the sulfur oxidation activity of microorganisms is greatly influenced, but the oxidation influence on iron is relatively small, so that the acid leaching is reduced under the condition that the copper leaching of the copper sulfide ore is not influenced, the copper leaching is not influenced, the acid leaching is reduced, the production cost is reduced, the environmental influence is reduced, and the like.

The invention provides a sulfur-substituted carbon low-carbon smelting method for multi-source complex copper ore, and belongs to the technical field of metallurgy, the method comprises the following steps: aiming at a multi-source copper concentrate phase to be fed into a furnace, constructing a batching model taking the Cu element content as a target function and the S-free phase content as a constraint condition, and calculating the components and content of the fed phase through a multi-target algorithm; performing material balance and heat balance prediction by using an XGBoost prediction model according to the in-furnace phase components and content; and a heat balance result is analyzed and fed back in real time, the real-time feedback operation is dynamically adjusted, and the low-carbon smelting optimal batching scheme with thiocarbon is obtained. According to the method, machine learning, an intelligent algorithm and a batching scheme are combined, the smelting process is simulated, carbonaceous fuel combustion is accurately mastered, the carbon emission is controlled, and compared with a traditional technology, the carbon emission is reduced.

A system for dynamic oxidation of a heap of copper ore includes a “process island” for formulating and dispensing oxidizing reactive mixtures having predetermined compositions, and irrigating the heap with the mixtures to progressively transform the ore and maintain conditions for enhanced recovery of metal by heap leaching, solvent-extraction and electrowinning. In embodiments, the system is adapted to obtain copper metal from the refractory copper mineral chalcopyrite.