3942results about "Flotation" patented technology

The invention is suitable for the technical field of quartz sand flotation, and particularly relates to a quartz sand flotation froth characteristic and dosage linkage control method which comprises the following steps: acquiring real-time process parameters and real-time image data; benchmark foam feature recognition is carried out based on the first image data, and the stable state and particle load characteristics of the foam under the current working condition can be accurately established; motion feature recognition is conducted on the second image data based on the reference foam features, and the dynamic evolution rule of the foam in the flotation tank can be captured in real time; real-time process parameters, moving foam characteristics and reference foam characteristics are combined to determine process adjustment parameters, and the residual state of chemicals in the system and the deviation condition of the flotation working condition can be quantitatively reflected; and the dosing control quantity is determined according to the process adjustment parameters, so that concentrate quality fluctuation and long-term potential quality hazards caused by excess or insufficiency are avoided, and the risk of secondary pollution is reduced.

The invention relates to the technical field of solid waste treatment, in particular to a flotation method and system for waste incineration fly ash decontamination and calcium conservation. The method comprises the steps that waste incineration fly ash is placed in a natural environment to be subjected to a natural carbonation reaction till the pH value is 7-9, pretreated fly ash is obtained and mixed with water, and then a collecting agent and a foaming agent are added for flotation separation; or mixing the waste fly ash by using the sulfuric acid aqueous solution as the flotation liquid, and then adding the collecting agent and the foaming agent for flotation separation; wherein the collecting agent is one or more of butyl xanthate, ammonium dibutyl dithiophosphate and N, N-diethyldithiocarbamate. By means of the method, heavy metal and chlorine salt in the fly ash can be removed, Ca-based components in the fly ash can be reserved, and therefore resource utilization of the waste incineration fly ash is achieved to the maximum extent.

The invention relates to the technical field of mineral flotation, in particular to mineral flotation equipment and a flotation process, and the mineral flotation equipment comprises a flotation machine box body, a partition plate, a bubble generation mechanism, an overflow drainage mechanism and a foam scraping mechanism; the flotation technology of the mineral flotation equipment comprises the following steps of ore feeding, bubble generating, bubble diffusing, foam generating, foam collecting, foam gathering and tailing discharging. According to the mineral flotation equipment and the flotation process, the output efficiency and quality of middlings are improved through the arrangement of the bubble diffusion assembly, scraping is facilitated through a scraping plate through the arrangement of the bubble accumulation mechanism, the collecting efficiency of the middlings is improved, abrasion of impurities to the rotor is reduced through a separation plate and a turnover plate arranged on the rotor, and the service life of the rotor is prolonged; the stacking flanges, the turbulent flow flanges, the first rotating blades are arranged in a bent mode, and the edges of the first rotating blades are arranged in a wavy mode, so that the turbulent flow capacity can be greatly improved, and the cavitation phenomenon is reduced.

The invention belongs to the technical field of quartz sand preparation, and provides a flotation synergistic process for high-purity quartz sand preparation, which comprises the following steps: crushing raw ore to obtain ore pulp, detecting the dispersity of the ore pulp after the concentration is adjusted, acquiring ore pulp state parameter data in real time in the detection process, and performing fluctuation analysis to obtain a flotation result; extracting ore pulp state parameters with fluctuation as pre-analysis risk parameters; and in combination with a historical detection database, identifying whether the pre-analysis risk parameter is associated with the occurrence of pseudo uniformity. A parameter association network is constructed based on Granger causality test, an adjustment sequence is determined by integrating an influence quantity coefficient and an intensity coefficient, influence paths and intensity among parameters are defined, adjustment blindness is reduced, quantitative sorting of optimization strategies is realized, parameters having significant influence on the system are preferentially processed, adjustment efficiency and pertinence are improved, and the method is suitable for large-scale popularization and application. The stability and the control precision of the detection system are guaranteed, the false uniformity risk is effectively reduced, and the accuracy of ore pulp dispersion uniformity detection is ensured.

The invention provides lepidolite flotation wastewater treatment equipment and a flotation process, and relates to the technical field of wastewater treatment, the lepidolite flotation wastewater treatment equipment comprises a reaction tank, a stirring mechanism, a swing dosing mechanism and a spraying mechanism; the stirring mechanism comprises a mounting frame fixedly arranged at the top of the reaction tank, and a rotating shaft is vertically and rotatably connected to the inner side of the mounting frame. According to the scheme, a ferrous sulfate solution is finally added into the reaction tank through the spraying mechanism, then a diluted H2O2 solution is intermittently fed through the swing medicine feeding mechanism, the H2O2 solution generates strong oxidizing hydroxyl free radicals under the catalysis of the ferrous sulfate solution, and therefore hydrophobic chains and polar groups of residual medicine are destroyed, and the medicine is obtained. The lepidolite metallurgical flotation wastewater is degraded into small molecular organic matters or mineralized into CO2 and H2O, so that the phenomenon that the subsequent coagulating sedimentation or adsorption process is hindered by residual chemicals is avoided, the chemical oxygen demand and toxicity of the wastewater are reduced, the subsequent biological treatment on the wastewater is facilitated, and the treatment effect and efficiency of the lepidolite metallurgical flotation wastewater are effectively improved.

The invention provides a composite reagent system and a chalcopyrite and sphalerite collecting method, and belongs to the technical field of mineral processing. The composite reagent system comprises a histidine derived functional group collecting agent and a black agent, and the histidine derived functional group collecting agent (containing a total sulfur ester group, a sulfydryl functional group and a side chain imidazole ring) serves as a core and is compounded with the black agent according to a specific proportion to form a target combination-synergistic interaction flotation mechanism. The histidine derivative collecting agent derives high-activity functional groups under the alkaline condition, and after sulfydryl is dissociated, stable chemical bonds are formed by the dissociated sulfydryl and metal ions on the surfaces of the chalcopyrite and the zinc sulfide. The black powder serves as an auxiliary collecting agent, and the collecting capacity of fine-grain or low-activity sulfide minerals is enhanced through chemical adsorption of dithiophosphate radicals and metal ions on the surfaces of the chalcopyrite and the sphalerite. After the two components are compounded, the selective enrichment efficiency of copper-zinc minerals in the flotation process is remarkably improved.

The invention relates to the technical field of artificial intelligence, and discloses an intelligent dosing method and system for lead zinc ore flotation to improve the efficiency, stability and economic benefits of a flotation process. The method comprises the following steps: calculating a first cross-modal feature and a second cross-modal feature, fusing the first cross-modal feature and the second cross-modal feature with a bubble image feature and an element grade feature through residual connection, and then processing to obtain a multi-modal feature sequence; inputting the multi-modal feature sequence of each time step into an LSTM network to obtain a corresponding LSTM hidden state sequence; calculating the time attention weight of the hidden state sequence of each time step in the time window, and performing weighted summation on the corresponding LSTM hidden state sequence according to the time attention weight to obtain a context vector in the time window; and finally, sharing the weighted and summed context vector serving as an input to a full connection layer corresponding to the two detection heads so as to respectively obtain probability distribution of predicted medicament types and a dose value of each medicament.

The utility model discloses a flotation machine scraper cleaning device which comprises a mounting plate, a rotating shaft is rotatably connected to the interior of the mounting plate, a rotating roller is fixedly installed at the end of the rotating shaft, when a scraper in a flotation machine needs to be cleaned, the rotating shaft rotates and drives the rotating roller to rotate along with the rotating shaft, and under the action of centrifugal force, the scraper in the flotation machine is cleaned. A limiting groove formed in the outer wall of the scraping plate slides on the outer wall of a limiting block fixedly installed on the inner side of the sliding frame, an I-shaped balancing weight slides in the sleeve frame under the action of centrifugal force and gravity and pushes a limiting plate, the limiting plate and the scraping plate are thrown out of the sleeve frame, the scraping plate can conduct flotation work at the moment, and along with rotation of the scraping plate, the sleeve frame is far away from a flotation tank; at the moment, the I-shaped balancing weight slides towards the interior of the sleeve frame, the limiting plate is driven to slide along with the I-shaped balancing weight, the scraping plate slidably arranged on the inner side of the limiting plate slides towards the interior of the sleeve frame along with the limiting plate, the outer wall of the scraping plate makes contact with the scraping frame arranged on the outer wall of the sleeve frame, and impurities attached to the outer wall of the scraping plate are scraped and cleaned under the limitation of the scraping frame.

The invention discloses an efficient combined regulator for easily-argillized copper oxide cobalt ore and a beneficiation method. The efficient combined regulator comprises the following components in parts by weight: 250-350 parts of sodium citrate and 1100-1200 parts of sodium hydrosulfide. Sodium citrate has high dispersing capacity, and the efficiency of selective adsorption between the argillization copper-cobalt ore and the medicament can be improved; meanwhile, the complexing ability of sodium citrate on ions, such as Fe, Ca and Mg, influencing agent adsorption on the surface of the ore is high, in addition, products obtained after complexing of the Fe, Ca and Mg ions can be dissolved in water, and action sites are provided for selective adsorption of a vulcanizing agent (NaHS) and a collecting agent amyl xanthate (PAX). According to the combined regulator and the beneficiation method provided by the invention, the problem of poor reagent selectivity in the flotation process of the argillization copper-cobalt ore can be obviously improved, the vulcanization effect of a vulcanizing agent is enhanced, and selective adsorption of a collecting agent is promoted, so that the recovery rate of copper and cobalt metals in the copper-cobalt oxide ore under the condition of serious ore argillization is improved.

The invention belongs to the field of photovoltaic module recovery, and particularly relates to a method for recovering glass and silicon powder from a waste photovoltaic module. The method comprises the following steps: (S1) crushing the waste photovoltaic module, and mixing the obtained powder with water to form slurry; (S2) adjusting the pH value of the slurry to be alkaline to obtain alkaline slurry; (S3) the alkaline slurry is mixed with a collecting agent, an inhibitor and a foaming agent, then flotation separation is conducted, and coarse silicon powder and a glass foam layer are obtained; (S4) cleaning the coarse silicon powder to obtain a silicon powder product; and (S5) sequentially carrying out defoaming, solid-liquid separation and washing on the glass foam layer to obtain a glass product. By optimizing the slurry pH, flotation reagent combination, washing and other process conditions, the separation effect of the silicon powder and the glass powder is improved, the problem that separation is not thorough due to similar surface properties in a traditional physical separation method is solved, the reagent residual quantity on the surface of the silicon powder is reduced, and the subsequent purification cost is reduced.

The utility model belongs to the technical field of flotation machines, and particularly relates to a flotation machine scraper cleaning device which comprises a flotation machine main shell, first fixing rings are symmetrically arranged on one side of the upper side of the flotation machine main shell, a first shaft rod is rotationally arranged between the first fixing rings, and scraper mechanisms are arranged on the outer side of the first shaft rod at equal intervals. The scraping plate mechanism comprises a sleeve, connecting rods and scraping plates, the sleeve is fixedly connected to the outer side of the first shaft rod in a sleeving mode, the connecting rods are symmetrically arranged on the outer side of the sleeve in a surrounding mode, and the scraping plates are arranged at the ends, away from the sleeve, of the connecting rods. The bristles can brush the upper side face of the arc-shaped blanking plate and the upper side face of the scraping plate about to rotate away from the arc-shaped blanking plate, the scraping plate can be cleaned in time in the separation process, ore grain foam scraped by the scraping plate can be rapidly cleaned out of the arc-shaped blanking plate, the ore grain foam is prevented from rotating back to the surface of ore pulp along with the scraping plate, and the ore pulp quality is improved. Therefore, the effect of scraping ore grain foam next time is prevented from being affected, and the overall efficiency of ore grain separation is guaranteed.

The invention provides a fine grain flotation machine impeller of a three-layer structure, and relates to the technical field of ore dressing. The impeller comprises a framework disc, the outer end face of the framework disc is provided with a connecting flange used for being installed with a power component of the flotation machine in a matched mode, and the inner circumferential face of the framework disc is provided with a circle of outer-layer blades which are evenly arranged at intervals. A closed ring is arranged at the end, away from the connecting flange, of the framework disc, the bottom ends of the outer-layer blades are arranged on the inner side of the closed ring, and a circle of inner-layer blades are evenly arranged on the outer side of the center hole in the framework disc at intervals. A circle of middle blades which are evenly arranged at intervals and fixedly connected with the inner end face of the framework disc are arranged between the outer-layer blades and the inner-layer blades. The structure of the outer-layer blade, the framework disc and the closing plate forms a gradually-shrinking closed flow channel, so that the initial kinetic energy and local turbulent kinetic energy of mineral particles and bubbles are increased, the collision mineralization probability of the bubbles and the mineral particles is increased, the pressure at the outlet of a gradually-shrinking opening is released, nano-bubble precipitation is facilitated, and the recovery of micro-fine particle mineralization is improved.

The invention relates to the technical field of mineral processing data processing, in particular to a preparation method of a high-calcium fluorite and barite paragenic ore combined inhibitor, which comprises the following steps: collecting multi-source process mineralogy data output by an X-ray fluorescence spectrometer, an automatic mineral analyzer and the like, converting the multi-source process mineralogy data into a structured format, and constructing a process mineralogy database; based on historical data of a database, a random forest algorithm is adopted to train a correlation model, the correlation rule of mineral characteristics such as calcite content, fluorite particle size distribution and barite monomer dissociation degree and the inhibitor ratio is learned, and parameters of the optimization model are fed back through a flotation test. The combined inhibitor solves the problem of selective separation caused by similar surface properties through a synergistic effect of covering active sites of fluorite calcium by modified water glass, regulating active sites of barite barium by citric acid and assisting in enhancing inhibition by modified starch, and solves the problem of low efficiency of multi-source data integration through structured data processing and model closed-loop optimization; the flotation separation efficiency and the concentrate grade are improved.

The invention relates to the technical field of mineral flotation separation, in particular to micro-fine particle mineral jet mineralization flotation equipment which comprises a water spraying device, an overflow groove and a flotation column body. The flotation column body is of a cylindrical structure, the upper end and the lower end of the flotation column body are open, and the lower end is a tailing outlet. The overflow groove is formed in the upper end of the flotation column body; the water spraying device is positioned above the overflow groove; an upper efficient mineralization layer and lower micro-nano bubbles are arranged on the flotation column main body; the high-efficiency mineralization layer (I) comprises at least one group of high-efficiency mineralization components and comprises an oscillating jet device, a bubble generator and a feeding pump which are connected in sequence; the micro-nano bubbles (II) comprise at least one group of bubble components, and each bubble component comprises an oscillating jet device and an inflator pump. The gas-liquid mixing effect is enhanced through oscillation flowing, the collision probability and the adhesion strength of bubbles and micro-fine mineral particles are remarkably increased, meanwhile, the equipment structure design is more compact, and efficient separation can be achieved under the low-energy-consumption condition.

The invention belongs to the field of flotation, and particularly relates to a method for flotation of copper cobalt oxide ore by using magnesium-containing tailing water, the magnesium-containing tailing water is used as flotation water to carry out five-stage roughing on the copper cobalt oxide ore, the first-stage roughing is carried out under a vulcanizing agent and a xanthate-thionocarbamate collecting agent, and the second-stage roughing is carried out under the action of a flotation agent; and the second-stage roughing is carried out under the condition of containing a compound additive, a vulcanizing agent and xanthate-hydroximic acid. The third-stage roughing is carried out under the action of a vulcanizing agent and xanthate-hydroximic acid; and the fourth-section roughing process and the fifth-section roughing process are carried out under the action of a hydroximic acid collecting agent. The compound additive comprises a component A and a component B with a structure shown in a formula 1 (# imgabs0 #); the component A comprises at least one of ammonium carbonate, ammonium bicarbonate, ammonium nitrate, ammonium acetate, ammonium sulfate and ammonium chloride; and the composite collecting agent comprises a xanthate collecting agent and a hydroximic acid collecting agent. By means of the method, the problem of flotation degradation caused by magnesium-containing tailing water recycling can be solved, and the excellent flotation effect can be achieved.

The present invention provides a kind of beneficiation method of low-grade spodumene ore, belongs to the field of mineral processing technology, and the method comprises the following steps: raw ore grinding, stirring and slurrying, flotation and other steps, wherein the stirring and slurrying operation uses YLH-01 as an adjusting agent, stirs under the original slurry pH condition, optimizes the rheological properties of the slurry, solves the problem that the fine mud covers the mineral surface and affects the ore sorting, and the flotation operation further improves the separation effect of spodumene and gangue minerals by the selective adsorption of collector PL2-01 on the spodumene surface, and realizes the efficient sorting of low-grade spodumene. The present invention is a new beneficiation method with good stability, good separation effect, high separation index and strong adaptability, which is suitable for promotion and application.

The invention relates to a flotation process automatic control method for intelligently optimizing a reinforcement learning algorithm. In the mineral flotation operation process, a flotation reagent system needs to be precisely controlled, for example, the dosage of reagents such as a collecting agent, an inhibitor and a foaming agent is adjusted, or process reaction parameters such as the pH value of ore pulp, the flotation temperature and the reagent reaction time are adjusted, so that the flotation index reaches the best, and maximum utilization of mineral resources is achieved. Main equipment for adding flotation reagents is a variable frequency pump, the reagent amount is adjusted through PID, meanwhile, process index data of a flotation tank are collected through a sensor, the whole control algorithm is optimized through improved FPA reinforcement learning, flotation process index data parameters serve as environment state observation values of reinforcement learning intelligent agents, and the flotation process index data parameters are calculated. Meanwhile, the design environment is rewarded according to the conditions meeting the flotation requirements, and the intelligent agent is trained through repeated environment interaction. And finally, during operation, the intelligent agent continuously gives an optimal action value parameter of a flotation cell actuator in real time, and unmanned reinforcement learning optimization control of mineral flotation is achieved.

The invention provides a beneficiation method of micro-fine particle low-grade tin ore. The beneficiation method comprises the following steps: (1) feeding; (2) physical reselection: a centrifugal drum of the physical concentrator rotates horizontally, and ore pulp is fed to the inner surface of the drum by an ore feeding device and is driven by the centrifugal drum to rotate along with the drum; (3) thickening; (4) the flotation process comprises the following steps: S1, feeding; s2, pulp mixing, wherein a flotation reagent is added into the ore pulp; the flotation reagents comprise a desulfurization flotation reagent and a floating tin flotation reagent, the desulfurization flotation reagent is added into the ore pulp for desulfurization flotation, and then the floating tin flotation reagent is added for floating tin flotation; s3, air inflation is carried out; s4, separating; and (5) secondary concentrate upgrading is conducted, specifically, flotation concentrate enters the physical concentrating machine again, secondary upgrading is conducted, and tin concentrate is obtained. According to the beneficiation method, the tin-containing grade of a tin concentrate product reaches 50% or above, and the comprehensive recovery rate reaches 55% or above.

The invention relates to a waste photovoltaic panel recycling method which comprises the following steps: crushing a waste photovoltaic panel until the size of the waste photovoltaic panel is 80-160 meshes, and preparing powder; carrying out acid leaching treatment on the powder, and respectively collecting a leaching solution and a solid material; an acid leaching solution adopted in the acid leaching treatment is a mixed acid aqueous solution of hydrochloric acid and sulfuric acid; the pH of the leachate is adjusted to be neutral with an alkaline agent, then the leachate is mixed with metal iron to be subjected to a replacement reaction, and metal copper is prepared; the solid material is mixed with water, hydrofluoric acid and a flotation agent are added into the obtained mixture for flotation treatment, floats and precipitates are collected respectively, the floats comprise silicon powder, the precipitates comprise glass powder, and the flotation agent comprises one or two of hexadecyl potassium hydrogen phosphate and sodium dodecyl sulfate. According to the recycling method, the silicon powder, the glass powder and the metal copper can be comprehensively recycled from the waste photovoltaic panel.

The invention discloses a beneficiation method for efficiently recovering barite from heat treatment drilling waste. The beneficiation method comprises the following steps that (1) the drilling waste containing the barite is subjected to wet screening classification; (2) performing magnetic separation on the undersize product to obtain a magnetic product and a non-magnetic product; (3) carrying out primary roughing and primary concentration on the non-magnetic product to obtain a barite powder product 1; and (4) the roughing tailings are subjected to scavenging for three times, scavenged concentrates are combined and then subjected to fine selection for two times, and a barite powder product 2 is obtained. According to the method, barite in the heat treatment drilling waste is efficiently recycled by adopting a beneficiation method, two different grades of barite powder products are obtained and can serve as drilling fluid raw materials to be recycled, resource utilization of the waste is achieved, and meanwhile environmental hazards are reduced.

The invention belongs to the technical field of mineral processing, and particularly relates to a synthetic method and application of a carboxymethyl-phosphorylated bifunctional chitosan inhibitor. The synthetic method of the carboxymethyl-phosphorylated bifunctional chitosan inhibitor comprises the following steps: (1) carrying out acid activation pretreatment; (2) phosphorylation reaction; (3) carboxymethylation modification; and (4) carrying out solid-liquid separation and drying. The invention also provides an application of the carboxymethyl-phosphorylated bifunctional chitosan inhibitor. According to the synthetic method of the carboxymethyl-phosphorylated bifunctional chitosan inhibitor disclosed by the invention, the synthesized carboxymethyl-phosphorylated chitosan inhibitor realizes the function switching of'two states in one dose ', the tedious operation of frequently replacing medicaments in the traditional process is avoided, and meanwhile, the medicament residue interference is eliminated.

The invention discloses a semi-supervised flotation working condition recognition method based on spatial-temporal feature fusion, and belongs to the field of industrial process monitoring. The method comprises the steps that flotation froth videos are collected and preprocessed to obtain a data set of a preset proportion; constructing a student model fused with spatial-temporal characteristics to predict each working condition category; a teacher model is constructed, and index moving average of student model parameters is used for updating so as to maintain stability and guide learning of the student model; and calculating supervision loss based on the labeled training set, calculating consistency loss based on the unlabeled training set, and performing semi-supervised training on the model by minimizing the total loss. According to the method, a spatial-temporal characteristic representation model is embedded into a semi-supervised learning framework, foam state evolution characteristics are fully represented, and high-precision working condition recognition is realized by using limited labeled samples; through the spatio-temporal feature fusion method of the cross additive attention mechanism, mutual enhancement of spatio-temporal features is realized, the time complexity is reduced, and the calculation efficiency is improved.

The invention provides a dosage prediction method and system based on multi-mode flotation froth digital characterization, and relates to the technical field of froth flotation. The method comprises the following steps: collecting multi-modal data of a foam state in a metal ore flotation process, wherein the multi-modal data comprises an RGB image, a video sequence and a three-dimensional point cloud; constructing three foam feature extraction networks, and respectively extracting RGB features, video dynamic features and three-dimensional point cloud features of the multi-modal data; fusing the extracted RGB features, the video dynamic features and the three-dimensional point cloud features based on a cross-modal attention mechanism to generate multi-modal features; constructing an expert knowledge base, wherein the expert knowledge base comprises structured rules and historical cases; and constructing a dosage decision model based on an expert knowledge base and a large language model, converting the multi-modal features into standardized vector representation, retrieving the expert knowledge base by utilizing similarity matching, and generating a dosage adjustment strategy. According to the invention, accurate prediction from foam multi-mode characteristics to dosage adjustment can be realized.

The invention provides a beneficiation and enrichment method for high-molybdenum oxide ore, which comprises the following steps of: performing fraction magnetic separation on a product after ore grinding, regrinding magnetic separation coarse particle tailings, mixing the reground product with magnetic separation fine fraction tailings to perform low-potential sulphide ore flotation, performing oxidized ore flotation on sulphide ore flotation tailings, and the like. And finally, the molybdenum concentrate with the high recovery rate and grade is obtained, the molybdenum ore separation and enrichment effect is achieved, and the fine disseminated-particle-size refractory molybdenum oxide ore resources in the high-oxidation-type molybdenum ore are effectively and comprehensively recycled. In order to quickly optimize and obtain the optimal condition of oxidized ore flotation, the flotation inhibitor with the good inhibition effect is determined through the pure ore flotation test, the flotation collecting agent with the high selectivity is selected through the molecular simulation calculation method, and the flotation efficiency and selectivity are improved. The method provided by the invention can be widely applied to the fields of development of high-oxidation molybdenum ore mines and recycling of fine-fraction refractory molybdenum oxide ore resources in tailings after sulfuration flotation.

The invention belongs to the technical field of ardealite purification. More specifically, the invention relates to an ardealite purification method. The method comprises the following specific purification steps: carrying out ball milling on the phosphogypsum to adjust the sphericity of the phosphogypsum to 0.55-0.65, so as to obtain a ball-milled material; adjusting the water content of the ball-milled material to 20-25% to obtain a wet ball-milled material; after completely freezing the wet ball-milled material, freezing and squeezing for 10-30 minutes under the condition that the pressure is 2.0-5.0 MPa, so as to obtain a squeezed material; the squeezed material is added into a flotation tank, water is added into the squeezed material, and then the pH value is adjusted to 2.5-2.7; and then adding a trapping agent, carrying out ultrasonic stirring reaction, then adding a foaming agent, continuously carrying out ultrasonic stirring reaction, scraping bubbles, collecting residual slurry in a flotation tank, dehydrating and drying to finish the purification of the phosphogypsum. The natural pH (Potential of Hydrogen) of the phosphogypsum is 2.4 to 2.6; in addition, the whiteness of the ardealite is 30 to 35 percent.

The invention belongs to the field of flotation, and particularly relates to a lithium-containing china clay ore flotation method which comprises the following steps: carrying out flotation on to-be-separated minerals of lithium-containing china clay ore in a flotation reagent containing a collecting agent to obtain lithium china clay ore concentrate; the collecting agent is characterized in that the collecting agent is a compound shown in the formula 1 # imgabs0 #; and / or a product obtained by carrying out an addition reaction on a formula 2 (R-NH2) and a formula 3 # imgabs1 # in advance and then carrying out a saponification reaction with an alkali. According to the collecting agent for the lithium china clay ore, the component shown in the formula 1 is innovatively adopted as the collecting agent for the lithium china clay ore, in this way, on the basis of intermolecular coupling of beta-NH-and-COOM, the collecting agent can accidentally adapt to the surface characteristics of target minerals of the lithium china clay ore, high-selectivity collecting can be achieved, and effective collecting under the low-temperature and mild conditions can be achieved.

The invention discloses a method for comprehensively recovering lithium beryllium resources in spodumene tailings, and belongs to the technical field of mineral separation. The method comprises the steps that after spodumene tailings are subjected to size mixing, amine and fatty acid serve as a combined collecting agent, flotation I is conducted, and mica concentrate and tailings I are obtained; after size mixing is conducted on the tailings I, sodium sulfide and phosphate serve as a combined inhibitor, a metal-hydroximic acid organic complex and fatty acid serve as a combined collecting agent, flotation II is conducted, and lithium beryllium bulk concentrate and tailings II are obtained; and after size mixing is conducted on the lithium beryllium bulk concentrate, flotation III is conducted with phosphate and EDTA as a combined inhibitor and fatty acid as a collecting agent, and beryllium concentrate and lithium-containing tailings are obtained. By means of the method, the beryllium concentrate with the BeO grade being 4.448% and the recovery rate being 64% can be obtained, meanwhile, the lithium concentrate with the Li2O grade being 4.8% and the recovery rate being 57.6% can be produced, deep comprehensive recovery of the lithium beryllium resources in the spodumene tailings is effectively achieved, and the economic benefit capacity is large.

The utility model discloses an SF type flotation machine for phosphoric acid beneficiation. The SF type flotation machine comprises a groove body, a power system, a center cylinder, a stirring system and a scraper system. The air distributor is arranged to uniformly distribute the sucked air, so that a large amount of fine bubbles can be formed, and the generation of the bubbles is further facilitated; the slurry on the dispersing cover can be sucked into an upper impeller cavity through the through holes, so that slurry upper circulation is formed; the backward-inclined lower blade and the backward-inclined upper blade are arranged, so that slurry in the tank is subjected to upper and lower double circulation, and the suspension of coarse-grain minerals is facilitated; a large gap between the impeller and the dispersion cover is arranged, and the air suction amount is large. The ore pulp and air are self-sucked, the air suction amount is large, the number of auxiliary devices is small, and operation and maintenance are easy.

The invention relates to the technical field of jigging magnetic flotation columns, and discloses a jigging magnetic flotation column which comprises an inner cylinder, a magnet exciting coil is fixedly connected to the periphery of the inner cylinder, and an outer cylinder is arranged on the periphery of the magnet exciting coil; a conical concentrator is fixedly connected to the bottom of the inner cylinder, and a pulsation mechanism is arranged on one side of the conical concentrator; and the inner cylinder is connected with a feeding mechanism. The technical problems that a large amount of washing water needs to be used for elutriating the magnetic separator, and the concentration of reagents is affected by adding water into a flotation column are solved, the magnetic separation method for magnetite by applying magnetic levitation is possible, the magnetic separation magnetic field intensity is synchronously and reversely adjusted, and the problems of overflow tailing black running and magnetic ore concentrate magnetic inclusion caused by jigging pulsation are solved; the accidents that the ore pulp of the flotation column runs out of the groove and overflows and the elutriation magnetic separator runs out of the groove and overflows are prevented, and the product recovery rate and the concentrate index are also improved.

The invention relates to a barite and quartz flotation separation method, which belongs to the technical field of mineral flotation, and comprises the following steps: crushing, grinding and screening raw ore; the granules are made into ore pulp, the ore pulp is placed in an inflatable flotation machine, a regulator, an inhibitor and a collecting agent are sequentially added, barite rough concentrate is enriched at the bottom of a flotation tank of the inflatable flotation machine, and a foam layer of the flotation machine is quartz-rich tailings; and the barite rough concentrate is placed in an inflatable flotation machine to be subjected to direct flotation, an inhibitor and a collecting agent are sequentially added, and an upper-layer foam product of the inflatable flotation machine is barite concentrate. According to the method, one-time reverse flotation and one-time direct flotation are adopted, the technological process is shortened, loss of barite in the flotation process is reduced, and the recovery rate and purity of the obtained barite concentrate can both reach 91% or above.