366 results about "Magnetite" patented technology

The invention relates to the technical field of data analysis, in particular to a multi-source data-based concealed vanadium titano-magnetite bed target area delineation method and system, which comprehensively considers various factors possibly influencing drilling, such as geological condition complexity and drill bit wear risk, and has relatively low potential risks in various aspects of trajectory selection. The probability of unexpected conditions such as drill bit damage and borehole wall collapse in the drilling process can be effectively reduced, smooth drilling work is guaranteed, the drilling effect abnormity prediction result and the difficulty abnormity reflect the advantages and disadvantages of the drilling track from different angles, and the drilling efficiency is improved. The drilling effect anomaly prediction considers the influence of various abnormal conditions possibly occurring in the drilling process on the final drilling result, the difficulty anomaly focuses on the drilling difficulty of the trajectory, the two are fused and analyzed, the feasibility and the risk degree of each trajectory are evaluated more comprehensively and accurately, and the prediction accuracy is improved. And the influence degree of the track drilling process on ore deposit target area detection is reduced.

The invention belongs to the technical field of magnetite beneficiation, and particularly relates to a method for removing iron impurities in minerals through manual and automatic three-stage combination in magnet beneficiation, a three-stage iron removal system is arranged, the iron impurities and ferromanganese are detected step by step according to the size of the iron impurities and the property of magnets or ferromanganese, and a detected magnetic field is cooperatively calibrated step by step; and iron impurities in the ores are removed in a classified manner. Compared with the prior art, the system has the beneficial effects that a manual and automatic three-stage combined iron removal solution is adopted, large magnetic iron impurities, small magnetic iron impurities and ferromanganese impurities in the process are efficiently classified and removed in a targeted manner, damage of the iron impurities to equipment such as an ore crusher and a belt conveyor is avoided, the operation efficiency of the process is improved, and the production cost is reduced. And the problem of removing iron impurities in magnet beneficiation is solved.

The invention discloses an automatic medium adding method for a medium library of a coal preparation plant, a storage medium and electronic equipment, and the method comprises the steps: obtaining the medium library information of the medium library, and calculating the volume of a to-be-added concentrated medium, the mass of to-be-added magnetite powder and the volume of to-be-added clear water according to the medium library information; inputting the medium library information into a preset medium library digital twin model to obtain key information of the medium library; according to the coordinates of the highest point of the medium pile, a model prediction control algorithm is adopted to generate an optimal traveling track, and the traveling crane is controlled according to the real-time coordinates of the traveling crane, the traveling speed and the optimal traveling track; according to the mass of the magnetite powder to be added, the coordinates of the grab bucket, the opening and closing state of the grab bucket and the mass cumulant of the grabbed materials, direct medium discharging and / or differential medium discharging are / is executed; and if the medium placing in-place signal is received, a clean water pump and a blower device are controlled according to the volume of the clean water to be added. According to the invention, automatic medium adding of the coal preparation plant is realized, and control precision and efficiency are improved.

The invention relates to the technical field of ore particle screening, and discloses high-recovery-rate micro-fine-particle magnetite ore dressing equipment which comprises a mounting frame, a protective shell is fixedly mounted on the mounting frame, a screening assembly is arranged on the protective shell, and the screening assembly comprises a three-way pipe. In order to enable the high-recovery-rate micro-fine-particle magnetic iron ore preparation equipment to be suitable for efficient separation of high-added-value micro-fine-particle iron ore, the screening assembly is arranged, the screening assembly is matched with a power motor to drive a large belt wheel through a small belt wheel and a transmission belt, an output shaft drives an auger rod to push ore in a three-way pipe, feeding blockage is avoided, and the high-recovery-rate micro-fine-particle magnetic iron ore preparation equipment is suitable for efficient separation of high-added-value micro-fine-particle iron ore. And meanwhile, a centrifugal motor drives a trilateral frame to drive a centrifugal screen drum to rotate at a high speed, fine particles fall into a discharging hopper through screen holes by utilizing centrifugal force, and coarse particles are discharged from a first discharging pipe through a mounting drum. And the stirring paddle rotates synchronously to prevent the fine particles from accumulating in the funnel.

The invention discloses a method, a system and equipment for calculating a three-dimensional form of an iron ore body. The method comprises the following steps: acquiring magnetic anomaly data and a magnetic anomaly region of a known hidden magnetite body in a target region; the first top surface burial depth of the magnetite body is calculated or obtained through drilling data based on the magnetic anomaly area, and magnetization intensity three-dimensional distribution of the magnetic anomaly area is obtained; delineating a magnetic body range smaller than preset magnetization intensity according to the first top surface burial depth of the magnetite body and the magnetization intensity three-dimensional distribution; calculating the second top surface depth of the iron ore body according to the preset magnetization intensity, and counting the minimum value of the difference between the second top surface depth and the first top surface burial depth; and extracting a magnetization intensity distribution range which is greater than the inversion of the minimum value of the depth difference in the magnetization intensity inversion result, and calculating the form numerical value of the iron ore body according to the magnetization intensity distribution range.

The invention belongs to the field of metallurgy, and particularly relates to a method for comprehensively recovering iron, vanadium, titanium, scandium and gallium through cooperation of vanadium titano-magnetite and red mud, which comprises the following steps: a) mixing vanadium titano-magnetite concentrate powder and red mud powder, roasting, leaching in water, and carrying out solid-liquid separation to obtain leached residues and leached liquid; b) mixing the leachate with a precipitant to precipitate vanadium, and carrying out solid-liquid separation to obtain vanadium-rich slag and vanadium-precipitated clear liquid; dissolving the vanadium-rich slag in a sulfuric acid solution, mixing the vanadium-rich slag with ammonium salt to react, carrying out solid-liquid separation, and roasting the obtained solid product ammonium polyvanadate to obtain V2O5; resin is used for adsorbing and desorbing gallium ions in the vanadium precipitation clear liquid, the pH of desorption liquid is adjusted to be alkaline, then electrolysis is conducted, and crude gallium is obtained; c) washing and drying the leaching residues to prepare pellets; after the pellets are pre-reduced, a carbonaceous reducing agent is mixed, melt separation treatment is carried out, and scandium-containing high-titanium slag and molten iron are obtained; and Ti and Sc in the scandium-containing high titanium slag are recycled. The method has the advantages of simple process, cleanness, high efficiency and the like.

The invention belongs to the technical field of ultra-lean magnetite crushing and beneficiation, and particularly provides an ultra-lean magnetite final powdering process combining a high-pressure roller mill with two-stage dry separation, which comprises the following specific steps: ultra-fine crushing, screening, first-stage dry magnetic separation and second-stage dry magnetic separation, and the ores return to the high-pressure roller mill to be crushed, the first to fourth steps are repeated, and the waste rocks are directly thrown out. According to the process, the secondary dry type magnetic separation process is added in the follow-up process of the screening process, oversize ore is subjected to secondary dry type magnetic separation and then returns to the high-pressure roller mill, the treatment principle that throwing can be carried out early, throwing can be carried out early, and collecting can be carried out early is achieved, waste rock and part of ore reaching the monomer dissociation degree are separated in advance, and the treatment capacity of the high-pressure roller mill is reduced; therefore, the problem that the treatment effect of the high-pressure roller mill final powder process on the ultra-lean magnetite is poor due to the fact that the disseminated particle size of the magnetite is not uniform is solved.

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 a method for enhancing biological leaching of copper in a waste circuit board by utilizing magnetite. The method comprises the following steps: adding the pre-crushed waste circuit board and magnetite into a 9K culture medium with the pH value of 1.8-2.0 according to a certain mass ratio, inoculating Acidithiobacillus ferrooxidans as a leaching strain, and carrying out a leaching reaction under a constant-temperature oscillation condition. The magnetite is added, so that the leaching of copper in the circuit board is remarkably enhanced, the leaching rate is remarkably improved, and the leaching period is shortened. And compared with the microbiological leaching result without magnetite, the copper leaching rate is improved by 12-32%. By utilizing the difference between the circuit board and the magnetite in particle size, the magnetite can be recycled from the leaching residues through a physical separation means for a new round of leaching. The method is simple in process, the strain is easy to culture, and the method has good environmental friendliness and is suitable for green and efficient recovery of copper in the waste circuit board.

The invention discloses a Mars soil simulant performance evaluation method based on spectrum-mechanics combined characterization, which comprises the following steps: acquiring surface soil chemical components and physical and mechanical reference data of a target Mars area, taking basalt, magnetite and hematite as raw materials, solving the optimal mass ratio by adopting an optimization algorithm, and preparing a sample. Then, systematic spectrum characterization is carried out on the sample, and components and spectrum characteristic data of the sample are obtained; and meanwhile, carrying out physical and mechanical property test on the sample to obtain mechanical property data. Further, spectrum and component data serve as independent variables, mechanical data serve as dependent variables, an associated data set is constructed, the influence weight is analyzed, and a component-structure-performance quantitative relation is established. And finally, based on all the data and the internal association thereof, calculating the comprehensive similarity between the simulant and the real Mars soil, and generating a comprehensive performance evaluation report. According to the method, multi-dimensional and standardized quantitative evaluation of chemical, mineral and mechanical properties of the Mars soil simulants is realized.

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 a technical method of a lean magnetite dry-discarded tailing recleaning recovery process, and relates to the technical field of iron ore recovery. The technical method of the lean magnetite dry-discarded tailing recleaning and recycling process is characterized by comprising the following specific operations: S1, stacking coarse tailings at one place; s2, adding the coarse tailings obtained in the step S1 into a vertical shaft crusher; s3, the materials obtained in the step S2 are added into a double-layer efficient fine powder sieve, then the materials with the particle size being 0-6 mm serve as stone powder to be subjected to the step S4, the materials with the particle size being 6-16 mm serve as melon seed slices to be subjected to the step S5, the materials with the particle size being larger than 30 mm serve as medium four stones to be subjected to the step S6, and if other materials exist, the materials with the particle size being larger than 30 mm serve as medium four stones to be subjected to the step S6. According to the lean magnetite dry-discarded tailing recleaning and recycling process technical method, existing coarse tailing (0-30 mm) building material products are subdivided, and the standard of mainstream building material products in the market is met; and fine-fraction (0-6 mm) fine ore resources in the coarse tailings are subjected to re-separation and recovery, so that the metal loss is reduced, and the metal recovery rate is increased.

The invention discloses an all-component comprehensive utilization method for limonite type laterite-nickel ore, and belongs to the technical field of mineral processing and metallurgy. According to the method, multi-stage preheating and selective reduction are combined, accurate regulation and control of ore phase conversion are achieved by optimizing temperature and atmosphere conditions, metallic nickel and cobalt generated through reduction form a stable complex in the ammonia leaching process, and magnetite serves as an indissolvable magnetic phase to be left in slag. The reaction temperature is effectively reduced, the energy consumption is reduced, and the gas-solid mass transfer efficiency and the heat transfer efficiency are remarkably improved. The mineral structure is regulated and controlled through selective reduction, the adverse effects of excessive reduction, sintering, follow-up leaching difficulty and the like of iron oxide in the high-temperature roasting process of a traditional rotary kiln are avoided, and efficient selective leaching of nickel and cobalt and recovery and enrichment of magnetic iron ore are achieved. And meanwhile, the nickel and cobalt leaching efficiency is remarkably improved, interference of iron impurities on a leaching solution is reduced, and an economical and feasible new technical path is provided for resource comprehensive utilization and green metallurgy development of the limonite type laterite-nickel ore.

The utility model discloses a pair of inclined nose pliers convenient for collecting scrap iron, which comprises a pliers body, a lantern ring is fixedly connected to the outer side of the pliers body, a pin shaft is rotatably connected to the inner side of the lantern ring, and a pliers handle is fixedly connected to one side, far away from the pliers body, of the lantern ring. According to the device, by arranging the collecting assembly, when the hands of an operator are relaxed, under the elastic action of an extension spring, a connecting block drives a fixing sleeve to reset through a movable rod, so that the pincer body is kept in an open state, the operator can conveniently keep the pincer body open without additional force after completing one-time shearing, and preparation work of next-time shearing operation is conveniently conducted; and when the magnet is close to an area where the scrap iron is generated. The iron scraps can be attracted to the outer cover on the outer side of the magnet under the magnetic effect of the magnet, the containing groove is formed in the wall of the outer cover, and when the outer cover retracts into the hollow rod, the iron scraps can be conveyed into the containing groove, so that the iron scraps can be better gathered on the outer side of the outer cover.

To improve reducibility of an iron ore raw material to be used in an operation of a blast furnace and to further reduce a ratio of reducing materials in the blast furnace.SOLUTION: The present invention relates to a method for determining a charging area of iron ore raw material when charging the iron ore raw material and coke into the furnace. A relation between two different temperatures, Tlow and Thigh (where Thigh>Tlow) as a reduction temperature to magnetite when the iron ore raw material is reduced to magnetite and the time required for the magnetite in the iron ore raw material to reach a predetermined reduction rate due to a reduction rate when the magnetite in the iron ore raw material is reduced to metallic iron, is determined in advance; and a charging area for the iron ore raw material in the furnace is determined using the relation.SELECTED DRAWING: Figure 2

The invention discloses a sefstromite grinding and selecting method which comprises the following steps: performing coarse grinding and selecting on a sefstromite raw material to separate out fine-grained ilmenite and coarse grinding and selecting weak magnetic concentrate; carrying out spiral-flow type grading on the coarse grinding and separation weak magnetic concentrate, carrying out fine grinding on a sand setting product obtained by spiral-flow type grading, and carrying out spiral-flow type grading on an obtained ore discharging product again; an overflow product obtained through spiral-flow type grading is graded through a high-frequency screen, and an oversize product of the high-frequency screen is subjected to superfine grinding; mixing the ore grinding product obtained by superfine grinding with the undersize product of the high-frequency sieve, and performing primary separation to obtain primary separation section weak magnetic concentrate and primary separation section weak magnetic tailings; and elutriating the weak magnetic concentrate in the primary separation section to obtain the vanadium-titanium-iron concentrate. According to the vanadium-titanium-iron ore grinding separation method, the cost of the vanadium-titanium-iron ore concentrate purification process can be reduced, the product quality of the vanadium-titanium-iron ore concentrate is improved, and efficient recovery of the vanadium-titanium-iron ore concentrate is achieved.

The invention discloses a method for efficiently extracting iron from copper slag through non-molten hydrogen reduction, and belongs to the technical field of green resource utilization of metallurgical solid waste. Hydrogen is introduced to carry out reduction roasting on copper slag pellets, and a reduction auxiliary is added in a matched mode to dissociate fayalite in the copper slag; the purposes of strengthening the hydrogen reduction effect and improving the metal iron reduction rate are achieved, magnetite, fayalite and iron elements in other iron-containing silicate phases in the copper slag are reduced into metal iron, meanwhile, reduction products are treated through ore grinding and magnetic separation, and the iron ore concentrate grade is effectively improved. The method has the characteristics of simple reduction process and low carbon emission, and has high economic benefits.

The invention belongs to the technical field of vanadium titano-magnetite sintering, and particularly discloses a method for preparing high-alkalinity sinter from low-iron high-titanium high-vanadium magnetite. The method for preparing the sintered ore provided by the invention comprises the following steps: crushing low-iron high-titanium high-vanadium magnetite, sulfuric-acid slag, a flux and a carbon-containing fuel; 20-40 parts of low-iron, high-titanium and high-vanadium magnetite, 6-20 parts of sulfuric-acid slag, 8-24 parts of flux, 2-4 parts of carbon-containing fuel and 6-12 parts of return mine are blended, and a mixture is formed; and adding water into the mixture, granulating to obtain a ball material, and sintering to obtain the sintered ore. According to the method, the solid waste sulfuric-acid residue is added in the ore blending process, element regulation and control of the sintered material are achieved, and resource reutilization of the solid waste sulfuric-acid residue can also be achieved; a flux is added in the sintering process, and high-quality binder phase calcium ferrite is generated under lower alkalinity by regulating and controlling sintering alkalinity and element composition, so that the strength performance of the sintered ore is effectively improved.

The invention discloses a preparation method of a standardized sheet for a thermoelectric test of minerals or mineral materials and alloys, belongs to the technical field of mineralogy, material science and prospecting prediction, and establishes a preparation process of a universal mineral or mineral material and alloy thermoelectric sheet. Covering all semiconductor mineral types or mineral material types such as pyrite, magnetite, graphite and sintered ore; accurate thickness control is achieved through a double-face polishing-loading sheet supporting structure, in-situ testing of the thermoelectricity of minerals or mineral materials and alloys is achieved, and the testing precision is improved; by adopting a conductive adhesive-copper plate composite structure, the interface resistance is reduced, the supporting strength is met, and the requirement of eliminating detection interference is met; residual colloid is thoroughly removed through ultrasonic cleaning, and the insulation effect is avoided; according to the standardized sheet, the hollow aminated phenolic resin nanosphere is used as a conductive substrate and is used for bonding a sample and a copper plate, the contact resistance between the sample and an electrode can be greatly reduced, and the accuracy of test data is improved.

The present invention relates to the technical field of magnetic separation in ore dressing plants, and particularly to a continuous separation device for upgrading high-grade ores. It includes a frame, a vibrating feeding unit, a plate-type rough magnetic separation unit, and a roller-type fine magnetic separation unit; the vibrating box of the vibrating feeder in the vibrating feeding unit is arranged obliquely from the feeding end to the discharging end; the plate conveyor of the plate-type rough magnetic separation unit is fixedly connected in the vibrating box at the same inclination; the rough separation waste stone chute is fixedly connected to the bottom of the feeding end, the rough separation concentrate chute is fixedly connected to the bottom of the discharging section, and the fine magnetic separation feeding hopper is fixedly connected to the bottom of the rough separation concentrate chute; the roller-type fine magnetic separation unit includes a fine magnetic separation sorting roller, and the fine magnetic separation sorting roller is installed in the fine magnetic separation feeding hopper; a longitudinal partition plate is arranged between the roller and the material flow below the fine magnetic separation sorting roller, dividing it into a fine separation waste stone discharging hopper and a fine separation ore discharging hopper. It realizes the continuous multi-stage separation of magnetite, and on the basis of obtaining ideal product indexes, reduces the equipment, infrastructure investment, and operation and management costs.

The magnetic separation column comprises an ore feeding hopper, a tailing overflow groove, a separation column body, an electromagnetic system, a concentrate opening and a water feeding pipe, the ore feeding hopper is arranged at the top of the separation column body, the lower portion of the separation column body is communicated with the separation column body, the tailing overflow groove is formed in the upper portion of the separation column body, the concentrate opening is formed in the bottom of the separation column body, and the electromagnetic system is arranged outside the separation column body in a sleeved mode. The water supply pipe is inserted into the lower part of the sorting column; the device is characterized by further comprising a magnetism gathering medium body, the magnetism gathering medium body is fixedly arranged in the separation column, and the top of the magnetism gathering medium body corresponds to the uppermost electromagnetic system. According to the utility model, the phenomenon that fine-particle magnetite moves upwards along with rising water flow and enters tailings to cause black running is effectively avoided, so that the recovery rate of iron ore concentrate is increased, and the grade of the tailings is reduced.

The invention belongs to the technical field of steel smelting, and particularly discloses a dynamic control method and system for a melt separation deep and shallow reduction process, electronic equipment and a storage medium. The method comprises the steps that vanadium-titanium metallized pellets prepared by reducing vanadium-titanium magnetite are mixed with a reducing agent and a slag adjusting material for melt separation, and a melt separation product is obtained; collecting process parameter data of the melt separation process; calculating the components of the melt separation primary slag according to the acquired data, and dynamically calculating and monitoring the content of FeO in the melt separation slag in real time by combining the components of the melt separation primary slag with the acquired data; and determining the melt reduction degree, the melt ending time point and the melt product type according to the content of FeO in the melt slag and the stabilization time of FeO, and obtaining a target melt product. Melt separation is carried out in one melt separation enrichment device, the FeO content in melt separation slag is monitored in real time, accurate control over the deep and shallow melt separation reduction process is simply and conveniently achieved, meanwhile, iron loss is effectively controlled, and carbon emission and equipment investment are reduced.

The present application discloses a beneficiation method for copper-containing high-sulfur magnetite ore, which relates to the field of mineral processing technology. The specific steps include: S1, crushing pre-selection to remove large particles; S2, magnetic separation stage to strengthen separation of iron concentrate; S3, pre-treatment of the undersize product in step S1 and the magnetic separation tailings in S2 using sodium silicate-polyepoxysuccinic acid modification; sodium silicate-polyepoxysuccinic acid is a composite of sodium silicate and polyepoxysuccinic acid, with the addition amount of PESA being 0.2-0.4 kg / t; sodium silicate modulus 2.8-3.2, Na2O content ≥8.5%, SiO2 content ≥26.5%; addition amount is 1.2-2.5 kg / t; S4, concentration desliming-flotation combined to obtain a copper-sulfur mixed concentrate; S5, copper-sulfur separation. This method can achieve better sorting effect and increase the yield of high-grade copper.

The invention discloses a magnetic separation, enrichment and recovery process for low-grade vanadium titano-magnetite, which belongs to the technical field of comprehensive utilization of vanadium titano-magnetite, adopts a combined mineral separation process of dry pre-enrichment and tailing discarding, wet grinding, concentration and refinement, combination of gravity and magnetism and middling retreatment, selects mature industrial equipment and optimizes the combination. High-efficiency dry pre-selection equipment, wet grinding equipment, a multi-section reselection and middling retreatment system and solid-liquid separation equipment are utilized, a large amount of tailings are discarded at the front end of a mine, iron and titanium are efficiently separated and comprehensively recycled in the middle main process, the recycling rate bottleneck is broken through through the middling retreatment technology, near-zero discharge of wastewater is achieved, and compared with a conventional process, water can be saved by 50-60%, and the economic benefit is high. According to the method, the grinding and separation cost is saved by 60-70%, the energy-saving effect is remarkable, the purposes of cost reduction, efficiency improvement, comprehensive utilization of resources and clean production are achieved, the production and technical problems of low-grade vanadium titano-magnetite mine enterprises in arid and water-deficient areas are effectively solved, and the method is suitable for large-scale production and application.

The invention relates to the technical field of beneficiation, and particularly provides a beneficiation process for tungsten-molybdenum ore with calcium and magnesium ions easy to separate out. According to the beneficiation process disclosed by the invention, the iron ore concentrate, the molybdenum sulfide concentrate and the tungsten molybdenum oxide concentrate can be comprehensively obtained by improving the magnetic separation process, the flotation reagent combination, the desliming, the ore washing and other operation procedures; the problem of loss of tungsten and molybdenum metal along with magnetic concentrate due to the existence of a large amount of magnetite-molybdenite and magnetite-tungsten-molybdenum oxide ore intergrowth of the ore is effectively solved, and the problem of low molybdenum sulfide flotation index due to mismatching of a sulfuration flotation process is solved; the core problem that a large number of calcium and magnesium ions are separated out and react with a fatty acid collecting agent to cause heating flotation failure is solved, the technical bottleneck troubling the type of mine for more than ten years is successfully overcome, and the tungsten and molybdenum resource comprehensive recovery competitiveness of related enterprises can be remarkably improved.

The utility model relates to the technical field of magnetite identification, and discloses a simple magnetite identification device which comprises a magnet, a storage mechanism is arranged outside the magnet, and a cleaning mechanism is arranged on the side wall of the magnet; the storage mechanism comprises a shell, the shell is arranged outside the magnet, a vertical rod is fixedly connected to the interior of the shell, a first rotating rod is rotatably connected to the exterior of the vertical rod, a second rotating rod is rotatably connected to the exterior of the vertical rod, a magnifying lens is fixedly connected to the bottom of the first rotating rod, and the bottom of the second rotating rod is fixedly connected to the top of the magnet. The first rotating rod is arranged on the top of the second rotating rod. According to the magnet identification device, dust attached to the surface of the magnet can be brushed away through the brush by holding the shell, the problem that the identification result is affected due to the fact that the device is single in structure, inconvenient to store and prone to being in contact with foreign objects to cause abrasion is solved, and through the structure, the magnet is convenient to store, and the multifunctionality of the identification device is improved.

The utility model discloses a high-strength ball head hanging ring, and relates to the technical field of mechanical structure design. Comprising a connecting ring, a sheath is arranged at the bottom of the connecting ring, magnets are fixedly connected to the top of the sheath, and the magnets are annularly arrayed along the central axis of the sheath; a ball head body is arranged at the bottom of the connecting ring; the outer wall of the sliding assembly is in sliding connection with the outer wall of the connecting ring, and the sliding assembly is used for protecting the connecting ring; through the arrangement of the fixing device, when the ball head body needs to be replaced, only simple operation steps are needed, the protective sleeve slides upwards, limitation of the limiting assembly on the connecting assembly is relieved, and then the connecting block slides out of the fixing block, so that the ball head body is replaced more conveniently and rapidly; the time cost of maintenance and replacement is reduced, and the purpose of the high-strength ball head hanging ring is achieved.

The invention discloses application of sodium dodecyl amino propionate in flotation separation of newly-generated magnetite and quartz, and belongs to the technical field of iron ore flotation separation. The compound serves as a collecting agent and is used for separating new magnetite and quartz obtained through reduction roasting-magnetic separation, and efficient separation is achieved by adjusting the pH of ore pulp, adding an activating agent and controlling flotation conditions. The iron grade of the obtained iron ore concentrate is not less than 61%, and the recovery rate is not less than 85 The agent has the advantages of being good in low-temperature solubility, high in selectivity, short in technological process and the like, is suitable for industrial production, remarkably improves the quality of iron ore concentrate, and solves the problems that an existing collecting agent is poor in selectivity and insufficient in adaptability.

The invention provides a vanadium titano-magnetite beneficiation method which comprises the following steps: carrying out dry screening after carrying out coarse crushing and medium crushing on vanadium titano-magnetite raw ore, and carrying out dry tailing discarding on dry screening undersize; carrying out ultrafine crushing on the concentrate subjected to dry type tailing discarding, and carrying out weak magnetic pre-concentration roughing and weak magnetic pre-concentration scavenging on the screen underflow; weak magnetic pre-separation roughing concentrate and weak magnetic pre-separation scavenging concentrate are combined and then subjected to first-stage grinding, and classified undersize products are subjected to first-stage weak magnetic roughing and first-stage weak magnetic scavenging; first-stage weak magnetic roughing concentrate and first-stage weak magnetic scavenging concentrate are combined and then enter second-stage ore grinding, and after screening, undersize products are subjected to second-stage weak magnetic roughing and second-stage weak magnetic scavenging; the second-section weak magnetic roughing concentrate and the second-section weak magnetic scavenging concentrate are combined and then subjected to third-section ore grinding, then quality-improving and impurity-reducing magnetic separation is conducted, the quality-improving and impurity-reducing magnetic separation concentrate is concentrated and filtered to obtain superfine iron ore concentrate, and the quality-improving and impurity-reducing magnetic separation tailings are treated to obtain superfine titanium concentrate; the method provided by the invention can realize comprehensive utilization of iron and titanium resources.