1313 results about "Beneficiation" patented technology

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 discloses a beneficiation process intelligent optimization control method and system based on a knowledge graph, and relates to the technical field of beneficiation process control, and the method comprises the steps: collecting static attribute data and dynamic operation data, constructing a causal knowledge graph, and obtaining a causal relationship between nodes in the causal knowledge graph and an optimization target constraint; based on a causal relationship between nodes in the causal knowledge graph and optimization target constraints, screening data from a historical database to form a high-value historical data set; according to the high-value historical data set, a reward function model is constructed, a strategy function is trained, and a reinforcement learning control strategy is obtained; running the reinforcement learning control strategy, generating a control instruction, and issuing the control instruction to the target equipment to obtain dynamic optimization control; and performing real-time monitoring on the dynamic optimization control, and performing anti-fact reasoning based on a causal knowledge graph when abnormal deviation of the running state is detected to obtain an anti-fact reasoning result.

The invention discloses a quality-divided treatment and recycling method for lead-zinc beneficiation wastewater, and belongs to the technical field of beneficiation wastewater treatment.The method comprises the steps that beneficiation tail water is introduced into a Fenton reaction tank, a catalyst is added firstly, then hydrogen peroxide is added, a Fenton oxidation reaction is conducted, after the Fenton oxidation reaction is finished, the beneficiation tail water is introduced into a coagulation reaction tank, caustic soda liquid is added, and the mixture is stirred and mixed uniformly; adding a precipitating agent, a flocculating agent and a stabilizing agent, and flocculating and settling the precipitate; introducing the beneficiation tail water added with the treatment agent into a honeycomb inclined tube sedimentation tank, further flocculating and settling, then returning flocculated precipitates in a bottom tank to a coagulation reaction tank, and discharging redundant bottom mud into a tailing pond; and settled clear water enters a clear water tank and is used as production water for ore grinding classification and flotation operation. According to the invention, through quality-divided treatment-quality-divided recycling of the beneficiation wastewater, it is ensured that the beneficiation tail water meets the requirements of ore grinding and flotation production indexes, the treatment cost of concentrate overflow water and filtered water is reduced, and the purpose of 100% recycling of the beneficiation wastewater after quality-divided treatment is achieved.

The invention relates to the technical field of mine beneficiation, and discloses a placer movable type gravity separation system and method, and the placer movable type gravity separation system comprises a movable type bearing base, an impact crusher, a spiral classifier and a plurality of parallel shaking tables; a spiral classifier is matched with an intelligent concentration monitoring system. The intelligent concentration monitoring system is composed of an ore pulp concentration sensor, a flow sensor, a PLC and an electric adjusting valve. The feeding end of each shaking table is connected with the discharging end of the spiral classifier through a flow dividing pipeline, and a flow distributing valve is arranged on the flow dividing pipeline. A damping device and crawler-type moving wheels are integrated at the bottom of the movable bearing base, the whole machine is in communication connection with the equipment through a central control cabinet, and data communication and material conveying closed-loop linkage of the raw material crushing unit, the ore pulp grading and concentration regulation and control unit, the multi-machine parallel gravity separation unit, the movable operation regulation and control unit and the central control unit are achieved. The intelligent control framework has the advantages of being accurate in ore pulp concentration regulation and control, high in treatment capacity and stable and reliable in moving operation.

The invention provides an acoustic emission ore pulp granularity online detection system and method based on a Hertz collision mode, and belongs to the technical field of ore dressing process monitoring and control. The system comprises an ore pulp bypass circulation module, a particle size calculation module and a particle size measurement control module. A built-in acoustic emission sensor is used for collecting acoustic emission signals generated by Hertz elastic collision between signal ore pulp particles and a probe; multi-band energy features and time domain features are extracted in combination with wavelet packet decomposition, and a fusion feature vector is constructed by fusing ore pulp flow velocity and density information; the fusion feature vector is input into a BP neural network model after dimension reduction processing, and the proportion of particles with the particle size smaller than a set threshold value in the ore pulp is predicted online. Full-process management of sampling, preparing, measuring and liquid discharging is achieved through automatic control, and the system has the advantages of being high in measuring precision and automation degree, low in cost, high in anti-interference capacity and the like, is suitable for continuous online monitoring of the ore pulp granularity on the ore dressing site and provides data support for flotation process optimization.

The invention belongs to the technical field of vanadium enrichment mechanisms of phosphorus vanadium ores, and discloses a research method of a vanadium enrichment mechanism in a diagenetic stage of phosphorus vanadium ores, which comprises the following steps: S1, sample collection and treatment; s2, rock ore identification and mineral composition analysis; s3, analyzing the occurrence state and microcell morphology of vanadium; s4, performing geochemical analysis on the whole rock; s5, in-situ microcell geochemical analysis is carried out; s6, phosphorus nodule analysis; s7, comprehensive analysis and mineralization model establishment; according to the method, mineralogy, total rock geochemistry, micro-area surface scanning and other multi-scale and multi-means research methods are comprehensively utilized, and the vanadium occurrence state, the ore-forming fluid evolution and the phosphorus-vanadium coupling relation are finely described; in-situ microcell geochemical analysis is introduced into phosphorus nodule analysis, the internal structure, the growth sequence and element distribution of the phosphorus nodule are directly revealed, obvious frontier and systematicness are achieved, and reliable theoretical support is provided for accurate exploration of vanadium ore resources and green and efficient dressing and smelting process research and development.

The invention discloses a metal mine production big data intelligent analysis method and device and a medium, and relates to the technical field of intelligent mine information, and the device comprises an acquisition and modeling module, an analysis module, a prediction and optimization module and a visualization module; the data acquisition unit is provided with a vibration sensor, a temperature sensor and a geological pressure sensor, and is used for acquiring mine equipment operation parameters, mineral processing process indexes and geological environment parameters in real time to obtain multi-source data; the data preprocessing unit is used for performing timestamp alignment, missing value compensation, noise elimination and unit normalization processing on the multi-source data to obtain standardized multi-source data; the feature extraction unit adopts a multi-head Transform network, performs space-time modeling and semantic feature fusion on standardized multi-source data, and outputs a tensor embedding vector, the risk identification result is converted into an executable process adjustment strategy, the crossing from passive early warning to active optimization is realized, and the efficiency and the intelligent level are enhanced.

The invention discloses a beneficiation optimization control method and system based on a knowledge graph, and relates to the technical field of mineral processing process control, and the method comprises the steps: collecting and preprocessing beneficiation whole process data, and generating an initial multi-modal data set; space-time process elements are extracted based on the initial multi-modal data set, and an initial beneficiation optimization knowledge graph is constructed; establishing a mineral separation process topological graph, bringing process equipment material topology into a mineral separation optimization knowledge graph, and constructing an evolutionary mineral separation optimization knowledge graph; performing timestamp alignment on the initial multi-modal data set through an evolutionary beneficiation optimization knowledge graph to obtain a time axis aligned multi-modal data set; hierarchical time sequence modeling and cross-modal correlation calculation are carried out on the multi-modal data set with the aligned time axes, and multi-modal time sequence correlation features are generated; and the multi-modal time sequence correlation characteristics are input into the evolution beneficiation optimization knowledge graph for reasoning, and an optimal beneficiation control strategy is obtained.

The invention discloses a beneficiation reagent raw material solid mixing device, and relates to the technical field of beneficiation reagent production equipment.The beneficiation reagent raw material solid mixing device comprises a base, an arc-shaped adjusting ring is slidably connected in the base, a first motor is installed at the end of the adjusting ring, and an output shaft of the first motor is fixedly connected with a spherical stirring barrel through a coupler; the spherical stirring barrel is rotationally connected with the adjusting ring, a barrel cover is arranged at an opening of the spherical stirring barrel, a connecting barrel is fixedly connected to the inner bottom wall of the spherical stirring barrel, and a second motor is arranged at the bottom of the spherical stirring barrel. The mixing uniformity and adaptability are improved by means of the multi-dimensional compound motion of the spherical mixing drum; the first motor drives the device to pitch and overturn, and cooperates with the annular baffle to destroy a flow field, eliminate dead angles and prevent layered settlement; and the second motor drives the stirring blade capable of axially sliding, and the stirring blade is dynamically close to the material during rotary shearing, so that radial and axial synchronous mixing is realized, and the efficiency is improved.

A beneficiation method for improving a grade of a magnesium-containing copper sulfide ore concentrate includes: crushing and grinding an ore to a fineness degree allowing 55% to 65% of particles to pass through a 0.074 mm sieve, adding an adjusting agent lime, collecting agents butylxanthate and kerosene, and a foaming agent methyl isobutyl carbinol (MIBC) to obtain a copper-molybdenum-sulfur mixed concentrate; re-grinding the copper-molybdenum-sulfur mixed concentrate to a fineness degree allowing 75% to 82% of particles to pass through a 0.048 mm sieve, adding lime, a magnesium-containing silicate inhibitor, a collecting agent 1, and MIBC to obtain a copper-molybdenum mixed concentrate; and adding sodium sulfide, kerosene, and MIBC to the copper-molybdenum mixed concentrate to obtain a high-grade copper concentrate. The beneficiation method adopts mixed flotation of copper-molybdenum, regrinding for separating copper and molybdenum from sulfur, and magnesium removal from a copper concentrate to allow quality improvement for the copper concentrate.

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 discloses a method for measuring the oxidation rate of silver ore, and relates to the technical field of mineral processing and process mineralogy analysis. The determination method comprises the following steps: preparing and segmenting a sample; silver grade calibration and reselection enrichment are carried out, and products with different mineralogical characteristics are obtained; carrying out automatic mineralogical analysis to obtain the type, content and dissemination characteristics of silver minerals; chemical leaching correction coefficient determination, wherein phase state distribution of silver is obtained through stepped chemical leaching, and the correction coefficient is calculated; determining a gangue wrapping correction coefficient, analyzing the silver content of the residue and calculating the correction coefficient; and finally, calculating the silver ore oxidation rate based on the automatic mineralogy analysis data and the correction coefficient. According to the method, through multi-technology fusion and data correction, the accuracy and reliability of measurement of the oxidation rate of the silver ore with low silver mineral content and uneven distribution are remarkably improved, and accurate data support is provided for formulation of a mineral separation process.

The invention discloses a beneficiation method for tin-silver symbiotic polymetallic ore and application of the beneficiation method, and relates to the technical field of mineral separation. Comprising the steps that after tin-silver symbiotic polymetallic ore is ground, undersize minerals are obtained through a high-frequency screen, silver-copper flotation is conducted on the undersize minerals, and silver-copper concentrate and silver-copper tailings are obtained; the silver-copper tailings are subjected to lead-zinc-sulfur flotation, and lead concentrate and zinc-sulfur tailings are obtained; and the zinc-sulfur tailings are subjected to zinc-sulfur flotation, and zinc-sulfur concentrate and tin-sulfur tailings are obtained. The concentration of ore pulp in the ore grinding process is controlled, it is guaranteed that cassiterite and sulfide minerals are fully dissociated, then a first inhibitor is added in the lead-zinc-sulfur flotation process, the valuable metal recovery efficiency can be enhanced by optimizing the flotation process and collaboratively innovating a reagent formula according to the complex characteristics of tin-silver symbiotic polymetallic ore, and the recovery rate of the tin-silver symbiotic polymetallic ore is increased. The contents of silver, copper and tin in the tailings are obviously reduced, and efficient utilization of resources and reduction of solid wastes are realized.

The invention provides an on-line monitoring and early warning method for whole-process beneficiation wastewater, and belongs to the field of on-line monitoring and early warning, and the method comprises the steps: deploying an on-line monitoring group for a corresponding link according to the wastewater treatment attribute of each link in the whole-process beneficiation wastewater process of a factory, and according to the mapping relation between the historical abnormal event and the treatment experience of each link, constructing an on-line monitoring group for the corresponding link; determining the participation effect of each historical abnormal water quality parameter in the historical abnormal event in the corresponding link and an adjustment scheme surrounding the historical abnormal water quality parameters, and establishing a response strategy library; establishing an input and output parameter model associated with the corresponding link according to the connection relationship of each link, and determining a current water quality abnormal parameter of the corresponding link according to a water quality analysis result to generate a water quality abnormal event; and comprehensively matching all the water quality abnormal events with the response strategy library, and determining and adjusting an early warning response strategy of each link. Problems in the wastewater treatment process can be quickly found and solved, and the risk that wastewater discharge does not reach the standard is effectively reduced.

The invention relates to the technical field of marine deposition backflow sand recovery, and discloses a marine deposition backflow sand recovery method which comprises the following steps: (1) backflow tail mud collection and concentration regulation and control: systematically collecting overflow tail mud from a mortar ore storage hopper and a hydraulic classifier in a marine deposition sand beneficiation process, pumping the backflow tail mud into a slurry mixing tank, and carrying out slurry mixing and concentration regulation and control on the overflow tail mud; the mass concentration is accurately regulated and controlled within the range of 32%-48%; the backflow tail mud generated in the marine sedimentary sand beneficiation process is collected through the system, a multi-step cooperative treatment technology is adopted, especially ultrasonic cavitation and mechanical cooperative dispersion, enhanced secondary scrubbing, precise hydraulic cyclone classification and other technical means are adopted, particle aggregates formed by wrapping of salt and fine mud are effectively dissociated, and the separation effect is good. Therefore, qualified quartz sand particles of + 0.15 mm which are lost in the tail mud originally are efficiently recovered, the overall recovery rate of the quartz sand is remarkably improved, waste of precious silicon resources is reduced, and the comprehensive utilization level of the resources is improved.

The invention discloses a beneficiation reagent quantitative adding device, and relates to the field of beneficiation reagent quantitative adding, the beneficiation reagent quantitative adding device comprises a mounting frame, the mounting frame is slidably connected with a sliding frame, the top of the sliding frame is fixedly connected with a liquid storage cylinder, the top of the liquid storage cylinder is provided with a feeding pipe, the sliding frame is provided with a water pump, and a water inlet of the water pump is fixedly connected with the bottom wall of the liquid storage cylinder; a water outlet of the water pump is fixedly connected with a liquid discharging pipe, a liquid outlet of the liquid discharging pipe faces the container, a first electromagnetic valve is installed on the liquid discharging pipe, and a backflow pipe is connected between a backflow opening of the water pump and the liquid storage cylinder. The impeller is driven to rotate through the water pump, the stirring frame and the inclined stirring blades are driven to stir material liquid, ore dressing agent precipitation is effectively prevented, and uniform mixing is guaranteed; the sliding frame reciprocates along the mounting frame and is matched with the guide block to automatically adjust the angle of the spray head, so that switching between horizontal spreading and parabolic spreading of feed liquid is realized, the spreading range and uniformity are remarkably improved, the beneficiation effect is enhanced, and the working efficiency is improved.

The application discloses a multi-metallic sand tin ore beneficiation process, adopts the equal floatation-mixed floatation-gravity separation backwater process, lead concentrate yield is 0.39%, lead grade is 16.62%, recovery rate is 15.93%; zinc concentrate yield is 1.08%, zinc grade is 39.32%, zinc recovery rate is 46.92%, the gravity separation indexes are as follows: tin concentrate yield is 0.39%, tin content is 40.57%, tin recovery rate is 51.66%; low-grade tin concentrate yield is 0.51%, tin content is 3.17%, tin recovery rate is 5.28%. The beneficiation process recovers lead, zinc and tin in the sand tin ore, has high beneficiation indexes and good beneficiation effect.

The invention discloses a collecting funnel wear-resistant lining type automatic deviation rectifying and distributing device, belongs to the technical field of mine and mineral processing production, and solves the problems of unbalance loading and deviation caused by deviation of a discharging point in multi-conveying-belt transportation and high maintenance cost of a wear-resistant lining plate. The device comprises a main body supporting and driving system (an integrated bracket, an air cylinder, a bracket and a jackscrew), a deviation monitoring and control system (a deviation sensor, a PLC (Programmable Logic Controller) control box and an electromagnetic valve) and a wear-resistant buffering system (a wear-resistant rubber buffering curtain), the deviation of the conveying belt is monitored in real time through the deviation sensor, the PLC control box drives the air cylinder to drive the support to move transversely, the angle of the buffer curtain is adjusted in combination with the jackscrew, a'monitoring-feedback-adjusting 'closed loop is formed, and dynamic deviation correction of a discharging point is achieved. The buffering curtain replaces a traditional metal lining plate, abrasion is reduced, and replacement is convenient. The device improves the stability of a transportation system, reduces the maintenance cost and adapts to severe working conditions of mines.

The invention discloses a raw ore mineral parameter-based tailing index dynamic prediction method, which comprises the following steps of: establishing a quantitative correlation model of mineral parameters and tailing indexes according to the grade alpha of a target element in a raw ore, the weight content W of a target mineral, the content D of the target element in the target mineral and the dissociation degree under a certain fineness condition; based on the model, tailing indexes corresponding to different intergrowth types can be predicted in real time, a traditional laboratory multi-round verification test is replaced, reagent consumption is reduced, and the test period is shortened. And meanwhile, optimal ore dressing process parameters are reversely deduced by setting an environmental protection threshold value, collaborative optimization of the resource recovery rate and environmental protection compliance is achieved, and the technical problems of resource waste and excessive emission in a traditional ore dressing process are solved.

The application discloses a beneficiation separation method for high-copper and low-zinc high-sulfur polymetallic ore, which comprises the following steps: A, after crushing the raw ore, ball milling and grading are performed, the sand is returned to the ball mill, and the overflow product is fed into a copper roughing process; B, copper roughing is performed; C, the roughing concentrate is subjected to copper cleaning process to obtain copper concentrate, and the roughing tailings are fed into a copper scavenging process; D, copper scavenging is performed, the scavenging tailings are subjected to grading, the sand is returned to the ball mill, and the overflow product is fed into a zinc roughing process; E, zinc roughing is performed, the roughing concentrate is subjected to zinc cleaning process to obtain zinc concentrate, and the roughing tailings are subjected to zinc scavenging process to obtain zinc tailings. The application efficiently realizes the separation of copper concentrate and zinc concentrate by fully utilizing the mineral particle size distribution characteristics, introducing a particle size grading system and improving the flotation reagent, and has the technical characteristics of high separation yield, easy operation, stable separation index and the like.

The invention discloses a sulfur-containing magnetite beneficiation method which specifically comprises the following steps: S1, raw material preparation: crushing sulfur-containing magnetite to obtain small-particle sulfur-containing magnetite; s2, physicochemical property determination: detecting the particle size of the small-particle sulfur-containing magnetite, the content of magnetite in the small-particle sulfur-containing magnetite and the content of sulfur minerals in the small-particle sulfur-containing magnetite; s3, magnetic separation: according to the physicochemical properties of the small-particle sulfur-containing magnetite detected in the step S2, automatically controlling the magnetic field intensity of a magnetic separation process through a controller, and carrying out magnetic separation to obtain magnetite and sulfur-containing ore; the magnetic field intensity of the magnetic separation process is dynamically adjusted according to the iron ore particle size of the sulfur-containing magnetite, the magnetite content in the sulfur-containing magnetite and the sulfur mineral content, the trends of iron minerals and sulfur minerals are accurately controlled, optimal adjustment of the element trends is achieved, and the recovery rate of iron and sulfur is increased.

The invention discloses an advanced treatment method of tungsten beneficiation wastewater, which is characterized in that a composite flocculant is adopted to flocculate the tungsten beneficiation wastewater, and the composite flocculant is mainly composed of cationic polyacrylamide, a flocculant A and lignocellulose, the flocculant A comprises at least one of polyferric sulfate, polyaluminum chloride, polyaluminum ferric chloride, polyaluminum ferric sulfate, ferric sulfate, ferrous sulfate and aluminum chloride. According to the advanced treatment method for the tungsten beneficiation wastewater, under the action of the composite flocculant, the cost of a treatment agent can be reduced to about 0.16-0.20 yuan / m < 3 >, the cost reduction amplitude is as high as 80% or above, the treatment time can be shortened to be within 10 min, the precipitation time is greatly shortened, meanwhile, suspended solids in the wastewater can be effectively removed, actual production requirements are met, and the method is suitable for industrial production. The method has the advantages of low treatment cost, high treatment efficiency, good removal effect, good adaptability and the like, can realize advanced treatment of the tungsten beneficiation wastewater, and is high in use value and good in application prospect.

The invention provides a beneficiation method for copper-zinc associated gold ore, and relates to the field of beneficiation. The raw ore is subjected to pulping, copper, zinc and other floatable roughing, and copper, zinc and other floatable rough concentrate and copper, zinc and other floatable roughing tailings are obtained; performing copper separation roughing on the iso-floatable rough concentrate to obtain copper rough concentrate and separation roughing tailings, performing concentration on the copper rough concentrate to obtain copper concentrate, and performing scavenging on the separation roughing tailings to obtain zinc scavenging concentrate; zinc-sulfur mixed roughing is carried out on floatable roughing tailings such as copper and zinc to obtain zinc-sulfur roughing concentrate and zinc-sulfur roughing tailings, zinc-sulfur concentration is carried out on the zinc-sulfur roughing concentrate to obtain zinc-sulfur concentrate, zinc-sulfur separation roughing is carried out on the zinc scavenging concentrate and the zinc-sulfur concentrate to obtain zinc rough concentrate and sulfur rough concentrate, and scavenging is carried out on the sulfur rough concentrate to obtain sulfur concentrate; zinc concentration is carried out on the zinc rough concentrate to obtain gold-containing zinc concentrate, carbon leaching is carried out on the gold-containing zinc concentrate to obtain leached ore pulp and gold-loaded carbon, filter pressing is carried out on the leached ore pulp to obtain zinc concentrate and cyanogen-containing barren liquor, and the gold-loaded carbon is analyzed to obtain regenerated carbon and pregnant solution. According to the method, efficient comprehensive recovery of raw ore is achieved.

The invention provides a method for synchronously recovering iron and rare earth from iron separation tailings, which comprises the following steps of: roasting the pretreated iron separation tailings in a graphite crucible to obtain a roasted product; the roasted product is crushed and screened, oversize products and undersize products are obtained, and the oversize products are reduced iron products; the screen underflow and an acid solution are mixed for leaching, and leaching liquid containing rare earth elements and acid leaching residues are obtained; and adding a precipitant into the leachate to obtain a precipitate containing rare earth elements, and recovering fluorite concentrate from the acid leaching residues. According to the method, the traditional disjunction mode of pre-enrichment and then smelting is broken through, a roasting-acid leaching integrated process with deep beneficiation and smelting coupling is provided, the complex pre-enrichment link is abandoned, efficient and synchronous recovery of iron and rare earth is achieved, and the method has the advantages of being short in process, low in energy consumption, few in flotation reagent, high in rare earth recovery rate, high in resource comprehensive utilization rate and the like.

The invention provides a gold mineral exploration method, device and system and a storage medium. Relates to the technical field of mineral exploration. The gold mineral exploration method comprises the following steps: acquiring a backscattered electron image of a sample to be detected, and screening bright mineral phase particles based on a preset gray threshold; performing energy spectrum analysis to obtain an actually measured energy spectrum corresponding to each bright mineral phase particle; and determining the gold-bearing minerals in the to-be-detected sample according to the actually measured energy spectrum. According to the method provided by the invention, the gold-bearing mineral is determined by analyzing the actually measured energy spectrum, and the identification accuracy and the automation efficiency of the micro-fine gold are improved; the method can effectively solve the problem of missed judgment caused by energy spectrum signal mixing and low matching degree due to fine or wrapped particles in a traditional method, so that more accurate process mineralogy data is obtained, and a reliable basis is provided for formulating an efficient dressing and smelting recovery scheme.

The invention relates to the technical field of mineral separation, and provides a segmented enrichment and recovery method for lithium-containing porcelain clay ore co-associated with rubidium and cesium, which comprises the following steps: grinding the lithium-containing porcelain clay ore to obtain ground ore pulp; the ore grinding pulp is subjected to sedimentation desliming, and settled sand and slime are obtained; the settled sand is subjected to size mixing, and to-be-separated ore pulp is obtained; lepidolite flotation is conducted on the to-be-separated ore pulp through a lepidolite collecting agent, and lithium separation tailings and lepidolite concentrate containing rubidium and cesium are obtained; carrying out potassium feldspar flotation on the lithium separation tailings by adopting a potassium feldspar collecting agent to obtain re-separation tailings and potassium feldspar concentrate containing rubidium and cesium; and fluoride-free separation of feldspar and quartz is conducted on the recleaning tailings, and feldspar concentrate and quartz concentrate are obtained. According to the segmented enrichment and recovery method provided by the invention, comprehensive utilization of co-associated rubidium and cesium in the ore can be realized to the greatest extent while the recovery of the main utilization mineral lepidolite is preferentially ensured, and qualified feldspar products and quartz products are obtained.

The invention provides an oblique coil electromagnetic classificator for separating weak magnetic impurities from strong magnetic concentrate, which comprises a separation cylinder, an ore feeding device and a flushing device, an ore feeding pipe of the ore feeding device extends into the separation cylinder from the top end of the separation cylinder, the flushing device is arranged below the ore feeding pipe, and an oblique coil is arranged on the outer side of the separation cylinder, so that the weak magnetic impurities can be separated from the strong magnetic concentrate. Magnetic lines of force are obliquely distributed, magnetic linkages formed by magnetic particles are oblique, the whole magnetic linkages can be efficiently impacted in cooperation with vertical component force Fz of water flow of the flushing device, and scattering of magnetic aggregates is facilitated; the tail control flat coil and the concentrate gathering flat coil at the upper end and the lower end effectively control tailings and concentrates respectively, so that the separation efficiency of strong magnetic concentrates and weak magnetic impurities is improved, for example, in the iron-titanium separation operation of vanadium titano-magnetite ore dressing, ilmenite mixed into iron ore concentrates can be reduced, the grade of the iron ore concentrates can be improved, and titanium metal resources can be fully recycled.

The invention discloses an arsenic-containing copper-zinc polymetallic ore beneficiation method and an arsenic-containing mineral inhibitor, and belongs to the field of beneficiation. The arsenic-containing mineral inhibitor comprises the following components by mass percent: 40-60% of lime; 30%-40% of ferrous cyanide salt; and 10%-20% of a sulfomethylation modified tannin extract. The sulfomethylation modified tannin extract is prepared from the following raw materials in percentage by mass: 40-60% of tannin extract; 10-20% of sodium hydroxide; 15 to 25% of formaldehyde; and 5-15% of sulfuric acid. According to the method, the lime, the ferrocyanide and the sulfomethylation modified tannin extract are innovatively compounded according to a specific proportion and are in mutual synergistic interaction, the selectivity of arsenic mineral inhibition can be effectively improved, the agent dosage is reduced, the long-term effect of inhibition is enhanced, deep arsenic reduction can be achieved in the mineral separation process, and the concentrate quality and the recovery rate are improved.

The invention relates to the technical field of mineral processing, and particularly provides a flotation concentrate quality evaluation method. According to the flotation concentrate quality evaluation method, systematic and quantitative comprehensive evaluation is carried out by combining multiple parameters such as the concentrate grade, the harmful impurity content, the yield, the mineral granularity characteristic and the dissociation degree characteristic, and accurate data support can be provided for concentrate quality judgment and mineral separation process optimization.

The utility model provides a vanadium-titanium magnetite concentrate three-section grinding separation device which comprises an ore separation box, the ore separation box is provided with a feeding end and a discharging end; the upgrading raw ore tank is connected with the feeding end; the cyclone is connected with the discharging end; the cyclone is provided with a tower mill; a feeding hole of the magnetic separator is connected with a discharging hole of the cyclone; the magnetic separator is provided with a tailing outlet and a magnetic separation outlet; the filtering machine is connected with the magnetic separation ore outlet; and the filter is provided with a concentrate outlet. Compared with the prior art, the three-section grinding and separation device for the vanadium-titanium magnetite concentrates adopts a specific structure and a connection relation, realizes better integral interaction, effectively improves the quality of the vanadium-titanium magnetite concentrates through three-section grinding and separation, ensures that the quality of the vanadium-titanium magnetite concentrates is improved and the yield is stable, continuously reduces the beneficiation production cost and the ironmaking cost, and improves the quality of the vanadium-titanium magnetite concentrates. And the requirement of an existing blast furnace on vanadium-titanium magnetite concentrate materials is met.