148 results about "Polymetal" patented technology

The invention discloses a quality-divided separation and high-valued utilization method of coal gasification slag, a generated product and application, and belongs to the technical field of high-valued recycling of coal gasification slag. According to the method, the coal gasification slag is classified by adopting an alkali fusion-acid leaching two-step method, components in the coal gasification slag are classified into pure carbon components and a metal-containing acid leaching salt solution, a high-valued utilization method is provided for the classified components, and the carbon components are activated into an active carbon electrode material with a high specific surface area and applied to the field of energy storage. The metal-containing acid leaching salt solution is prepared into the metal cross-linked hydrogel, and the metal cross-linked hydrogel is applied to the field of coal flame retardance. The method can effectively solve the technical problem that the overall utilization is restricted by carbon ash caused by multi-metal component mixing and high carbon content of the coal gasification slag in the prior art.

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.

A process for the recovery of valuable metals from oxide minerals, particularly polymetallic nodules, is disclosed. The process is suitable for the recovery of Cu, Co, Ni, Fe, and Mn, which are the main metals of interest in these polymetallic nodules. Among other features, the present process is characterized by the handling of Fe, which is dissolved and retained in solution until the crystallization stage instead of being removed in an earlier stage. A mixed Mn-Fe residue is obtained, which, after heat treatment, yields a Mn-Fe oxide suitable for the steel or manganese industries. Excellent yields of Cu, Co, and Ni are obtained, while the Fe is leached and recovered along with the Mn.

The invention discloses a method for low-alkalinity flotation of lead-zinc (silver-containing) polymetallic ore based on a heterocyclic sulfydryl coordination polymer, which comprises the following steps of: adjusting the pH value of ore pulp to 7.5 + / -0.3, and sequentially carrying out roughing, scavenging and concentration by adopting a composite collecting agent according to a gradient flotation procedure; wherein the mass concentration of the ore pulp is 20-40%; the adding amount of the composite collecting agent is 150-300g / t of ore pulp; the composite collecting agent is composed of a modified heterocyclic sulfhydryl compound, C12-C18 alkylamine polyoxyethylene ether and a star-shaped branched nonionic surfactant according to the mass ratio of 1: (1-3): (0.5-2). According to the method, the complex silver polymetallic ore is subjected to efficient flotation under the low-alkalinity condition by applying the composite collecting agent based on the heterocyclic sulfydryl coordination polymer. Through deep exploration and optimization of a flotation reagent system, process parameters and a microcosmic action mechanism, the recovery rate of metal such as silver, copper and lead is remarkably increased, and the ore dressing cost is greatly reduced.

The application discloses a method for preparing vanadium electrolyte from vanadium-containing shale through a short process, and comprises the following steps: crushing, grinding and slurry preparation of vanadium-containing shale to obtain ore slurry; flotation of the ore slurry to obtain flotation concentrate; concentration of the flotation concentrate, sulfuric acid aging and water leaching to obtain vanadium-containing leaching solution; removal of aluminum from the vanadium-containing leaching solution to obtain post-aluminum-removal solution; neutralization and reduction pretreatment of the post-aluminum-removal solution to obtain post-pretreatment solution; one-stage extraction of the post-pretreatment solution to obtain vanadium-rich solution I; two-stage extraction of the vanadium-rich solution I to obtain vanadium-rich solution II; and oil removal treatment of the vanadium-rich solution II to obtain vanadium electrolyte. The method realizes efficient extraction of vanadium from multi-metal vanadium-containing shale through flotation and sulfuric acid aging and water leaching, directly uses the vanadium-containing leaching solution as raw material, and prepares vanadium electrolyte through neutralization and reduction pretreatment, one-stage extraction, two-stage extraction and oil removal process. The method has the characteristics of short process, low cost, environmental friendliness, strong adaptability of raw materials, less reagents and energy consumption, etc.

The invention discloses a deep sea multi-metal mineral resource exploration and comprehensive evaluation method. The evaluation method comprises the following steps: S1, data collection and arrangement; s2, selecting a pre-detected deep sea area multi-metal mineral resource exploration method and acquiring mineral resource characteristic data; s3, deep sea multi-metal mineral resource data processing and characteristic variable screening; s4, constructing a full-data three-dimensional geologic model, judging metallogenic geological conditions of the pre-detection area, and summarizing metallogenic rules and distribution occurrence characteristics; s5, establishing a resource comprehensive evaluation element index of the multi-metal resource evaluation model, and determining a self technical economic value and a weight coefficient of an external development condition; s6, establishing a geological model and a grade prediction model; and S7, performing comprehensive scoring and evaluation analysis. The method is characterized in that a deep sea ferro-manganese polymetallic nodule, cobalt-rich crusting and seabed (hydrothermal solution) polymetallic sulfide resource exploration and resource evaluation method is taken as a research object.

The application provides a comprehensive identification method for ore types of complex polymetallic mines, and relates to the technical field of geological mineral exploration, and comprises the following steps: (1) determining an ore type identification scheme and ore-forming elements corresponding to ore minerals and characteristic elements or characteristic compounds corresponding to gangue minerals; (2) performing primary identification on the ore types of field samples obtained from mines; (3) crushing and grinding the field samples; (4) performing geochemical testing on the ore-forming elements and characteristic elements or characteristic compounds of the crushed and ground field samples; (5) inversely calculating the gangue mineral content of the field samples according to the measured characteristic element or characteristic compound content; and (6) performing secondary identification on the ore types of the field samples according to the standard of the ore type identification scheme in step (1). The application provides a more scientific semi-quantitative method for the identification of ore types of complex polymetallic mines.

The invention provides a method for offshore smelting and processing of deep-sea nickel-cobalt-manganese polymetallic ore, and relates to the field of deep-sea mineral resource development. The method comprises the following steps: crushing, grinding and pulping the deep-sea nickel-cobalt-manganese polymetallic ore to obtain raw ore pulp; mixing the raw ore pulp with sulfuric acid to obtain a mixture, and carrying out high-pressure acid leaching with step-by-step heating on the mixture to obtain high-temperature and high-pressure acid leaching pulp; the high-temperature and high-pressure acid leaching ore pulp is subjected to step-by-step depressurization flash evaporation concentration, and concentrated ore pulp is obtained; carrying out solid-liquid separation on the concentrated ore pulp to obtain a leaching solution and leaching residues, precipitating nickel, cobalt and manganese in the leaching solution, and carrying out solid-liquid separation to obtain a nickel-cobalt-copper enrichment and a post-precipitation solution. According to the method, ore is subjected to rough smelting processing on the sea, only target components are recycled, enriched and transported back to the land for smelting, the transportation amount is reduced, most useless components are backfilled to the seabed after being cured, and the seabed after deep sea mining can be repaired easily.

The utility model relates to a multi-metal low-grade flotation tailing metal recovery system which comprises a stirring barrel, a discharging port of the stirring barrel is connected to a feeding port of a hydrocyclone through a sand pump, a sand settling port of the hydrocyclone is connected to a feeding port of a ball mill, and a discharging port of the ball mill is connected to a feeding port of a sand pump pool. An overflow opening of the hydrocyclone is connected to a feeding opening of the roughing flotation machine, a concentrate discharging opening of the roughing flotation machine is sequentially connected to the first flotation classificator, the second flotation classificator and the third flotation classificator, and a concentrate discharging opening of the third flotation classificator is connected to the first cyaniding carbon pulp system. According to the recovery system, concentrate and tailings of raw ore are subjected to roughing separation, then the roughing concentrate and the roughing tailings are subjected to three-stage concentration and two-stage scavenging, valuable metal is enriched in the concentrate as far as possible, the concentrate grade is improved, the scavenged tailings are further enriched and recovered through two-stage magnetic separation, and the recovery efficiency is improved. And finally, valuable metals in the concentrate are efficiently recovered by combining a cyaniding carbon slurry system.

This invention discloses a device and method for co-collecting polymetallic nodules and rare earth elements in deep sea. The collection device includes a mining vehicle, a mineral collection device mounted on the mining vehicle, and an underwater robot. The mining vehicle is equipped with a solidification liquid tank for loading a solidification solution for the soft, rare earth substrate. The solidification liquid tank is connected to the underwater robot, which is equipped with a spraying device for spraying the solidification solution onto the coexisting area of ​​polymetallic nodules and rare earth elements. The mineral collection device collects and transports the polymetallic nodules and the solidified rare earth solids into a storage bin within the mining vehicle. This invention utilizes an underwater robot to spray the solidification solution onto the soft, rare earth substrate in the coexisting area, thereby solidifying the soft, rare earth substrate into rare earth solids. This facilitates collection by the mineral collection device, prevents the flow and dispersion of the soft, rare earth substrate, reduces disturbance during the collection process, avoids the formation of plumes, and achieves efficient co-collection of polymetallic nodules and rare earth elements.

The invention discloses a method for flotation separation of lead-zinc-sulfur polymetallic sulfide ore by using high-salt water, which utilizes the foamability of salt ions of the high-salt water and the positive influence of a stable foam layer, does not use a foaming agent in the whole process, and utilizes the natural foamability of the salt ions to carry out carbon roughing, lead roughing, zinc-sulfur floatable roughing and the like. The problem that concentration separation is difficult is solved without using a foaming agent, particularly, floating separation of most carbon in the roughing stage can be completed by using the foaming property of salt ions in the carbon roughing stage without adding any agent, and the agent cost can be remarkably reduced. The zinc-sulfur separation problem of the high-salt-content water is solved by adopting a zinc-sulfur concentrate thickening-fresh water size mixing and regrinding-fresh water separation process which can float zinc-sulfur and the like of the high-salt-content water. Furthermore, a lead rough concentrate thickening-fresh water size mixing and regrinding-fresh water separation process is adopted, mutual content of lead and zinc is sequentially reduced by reducing salt ions, reducing the strong foamability of salt water and weakening the stability of a foam layer, and the quality and recovery rate of main metal are improved.

The invention provides a tungsten polymetallic tailing recovery method and system, and the method comprises the following steps: carrying out crushing and first mineral separation to realize first enrichment so as to obtain a first fraction mineral; second screening is carried out on the first-size-fraction minerals, second mineral separation is carried out on the fifth-size-fraction minerals with the large particle size obtained through second screening, second enrichment is carried out according to the density, and second concentrate is obtained; small-particle-size fourth-particle-size minerals obtained through second screening and the second concentrate are graded according to a preset particle size grading rule, multi-stage jigging ore separation is carried out, third enrichment is carried out according to the density, and third concentrate is obtained; and after multiple times of enrichment, the third concentrate is ground and subjected to mineral separation, and target concentrate is obtained. Through multi-stage crushing, dense medium ore dressing according to density and multi-stage jigging ore dressing, multiple enrichment is carried out, the ore dressing efficiency is effectively improved, the ore grinding amount of grinding is reduced, the grinding cost is reduced, and the production cost is reduced.

The application provides a copper-molybdenum smelting slag multi-metal collaborative recovery method based on composite conditioning and external field strengthening, and relates to the field of comprehensive utilization of non-ferrous metal secondary resources. The method comprises the following steps: mixing liquid copper-molybdenum slag and a composite conditioning agent to obtain a mixture; in low-frequency alternating electromagnetic field strengthening treatment, the mixture is subjected to smelting reaction to obtain flue gas, molten slag and matte phase droplets; the matte phase droplets are cooled and ground to obtain ground matte phase; under alkaline conditions, a'mixed roughing- asynchronous separation' process is adopted, the ground matte phase and a collector are mixed for roughing to obtain copper-molybdenum mixed rough concentrate; the copper-molybdenum mixed rough concentrate and an inhibitor are mixed for cleaning to obtain copper concentrate and molybdenum concentrate, and finally, the copper recovery rate is greater than or equal to 92%, the molybdenum recovery rate is greater than or equal to 95%, and the smelting slag is deeply depleted and harmlessly disposed.

The invention belongs to the field of mineral resource processing, and particularly relates to a seabed deep-sea polymetallic nodule pretreatment and valuable element extraction method, which comprises the following steps: carrying out rapid heating and heat preservation pretreatment on a mixed material containing seabed deep-sea polymetallic nodule, a carbon material and an additive by adopting an electrified resistance heating mode to obtain a pretreated material; wherein the temperature rise rate of rapid temperature rise is 100-500 DEG C / s; the pretreatment temperature is 800 to 1000 DEG C; the additive comprises at least one of alkali metal salt, alkaline earth metal salt or ammonium salt. According to the method, the seabed deep-sea polymetallic nodule, the carbon material and the additive are innovatively subjected to instantaneous heating pretreatment, so that the physicochemical structure of the seabed deep-sea polymetallic nodule can be optimized, the subsequent leaching behavior of the seabed deep-sea polymetallic nodule is further optimized, and the extraction rate of valuable elements of the seabed deep-sea polymetallic nodule is improved.

The present application relates to a process for separating chemical elements M1, M2 and / or M3 contained in a solid sample, such as end of life batteries or black masses, wherein M1 is an alkali metal, M2 is a transition metal and M3 is aluminum.

The invention discloses a method for recovering metal by reducing deep-sea polymetallic oxidized ore through high-temperature hydrogen plasma, which comprises the following steps: dehydrating and drying the deep-sea polymetallic oxidized ore collected at the seabed, then adjusting the binary alkalinity of the deep-sea polymetallic oxidized ore to 0.15-0.20 (the binary alkalinity represents the mass ratio of CaO to SiO2), and smelting by using a hydrogen plasma electric arc furnace, and after smelting is finished, a melt is poured out, smelting slag and smelting alloy are separated, and nickel-copper-cobalt-iron smelting alloy and manganese-rich slag are collected. And finally, the high-value alloy and the manganese-rich slag are obtained in one step through separation of the slag and the metal alloy.

This invention belongs to the field of deep-sea resource development and intelligent robot technology, specifically relating to a planktonic multi-legged ore-collecting robot and method with autonomous sensing, positioning, and grasping functions. This invention is used for low-disturbance, high-efficiency collection of discontinuous and unevenly distributed mineral resources such as polymetallic nodules and cobalt-rich crusts in complex deep-sea terrain. It includes a biomimetic multi-legged pressure-resistant shell module, a multimodal autonomous sensing and positioning system, a multi-legged cooperative flexible grasping system, an intelligent buoyancy and cooperative propulsion system, an autonomous control system, an energy management module, and a data processing and storage unit. This invention employs a composite movement mode combining a biomimetic multi-legged structure and planktonic drive, enabling intelligent identification and compliant grasping of ore, avoiding the collection of waste rock, and improving resource recovery grade and economic benefits.

The present application relates to the technical field of metal ore geophysical exploration, and discloses a magnetic logging identification method suitable for tungsten-molybdenum polymetallic ore in the south Qinling tectonic belt, which comprises the following steps: step 1, drilling holes in the exploration area, and carrying out nine-parameter geophysical logging on each drilling hole, wherein the nine parameters include natural gamma, natural potential, apparent resistivity, magnetic susceptibility, apparent polarization rate, magnetic measurement three components, hole inclination, hole diameter and well temperature. The magnetic logging identification method suitable for tungsten-molybdenum polymetallic ore in the south Qinling tectonic belt establishes a multi-parameter collaborative logging identification system suitable for tungsten-molybdenum polymetallic ore in the south Qinling tectonic belt, uses parameters such as natural gamma and apparent resistivity to divide the lithology, uses apparent polarization rate and magnetic susceptibility as the core to identify the mineralization zone, uses the magnetic measurement three components to judge the blind ore body, realizes the integrated exploration process of 'lithology division-mineralization zone delineation-blind ore body identification', and effectively overcomes the defects of single parameter and insufficient information utilization of the traditional method.

This invention discloses a method for the comprehensive utilization of copper-nickel mixed slag resources, belonging to the field of non-ferrous metal metallurgy and solid waste resource utilization technology. The method includes the following steps: 1) mixing and conditioning the copper-nickel mixed slag with a slag-forming agent and a reducing agent, controlling the basicity of the copper-nickel mixed slag to be 0.6-2.4, forming a conditioned slag material; 2) after step 1), melting and reducing the conditioned slag material at 1300-1600℃ to obtain a metallic phase and slag; 3) subjecting the slag to gradient roasting to volatilize valuable metals in stages; 4) after step 3), separating the obtained volatiles by alkaline leaching, and purifying the rare and dispersed metals by solution extraction; 5) utilizing the remaining slag resources; combining the synergistic process of melt reduction and gradient roasting, the method achieves the cascade recovery of multiple metals in the copper-nickel mixed slag and the resource utilization of the slag phase.

This invention relates to a collector agent in the flotation of lead, zinc and optionally copper comprising S-alkyl-4,5-dihydro thiazole (Formula la) or N-alkyl-2- thiazolidinethione (Formula lb) or a mixture thereof wherein R1 is a C1 to C18 alkyl, C2 to C18 alkenyl, C3 to Cw cycloalkyl, C6 to C18 aryl or an alkyl ether group of the formula -(CH2)nOCH3, where n is a number from 1 to 18, such group optionally being substituted.

This invention discloses an external circulating cooling system for land-based testing of a deep-sea polymetallic nodule mining vehicle. It includes a power water supply unit, a spray module, a coolant recovery unit, and an air-cooling module, integrated into a non-powered, follow-up cooling vehicle. Connected to the mining vehicle via a mechanical hinge, it can move synchronously with the vehicle. The coolant inside the radiator tank, after passing through a regulating valve and filter assembly, is delivered in two paths by the power water supply pump. The first path provides power fluid to the Venturi jet device, and the second path delivers it to the nozzle array to spray and cool the hydraulic module, the core heat-generating component of the mining vehicle. The cooled coolant, after heat exchange, collects in a collection tank and is then drawn back to the radiator tank by the negative pressure of the Venturi jet device, achieving closed-loop cooling in conjunction with a variable frequency cooling fan. This invention, combined with an infrared thermal imager and a PLC control box, achieves intelligent temperature control. It features a compact and lightweight structure, requires no modification to the mining vehicle itself, has high heat dissipation efficiency, high coolant recovery rate, and effectively extends the duration of continuous land-based testing.

The application provides a heavy medium separation method for phosphate ore, fluorite ore, barite ore and polymetallic ore, which comprises the following steps: separating the ore corresponding to the real-time operation state data of the ore through a preset gradient density heavy medium separation system; the gradient density heavy medium separation system has a partition independent medium recovery module and a suspension liquid density intelligent control module; and the separation density characteristics are obtained through the partition independent medium recovery module and the suspension liquid density intelligent control module. The application can realize the accurate separation of polymetallic associated ore, obtain various products such as phosphate concentrate, fluorite concentrate and barite concentrate, and improve the resource utilization rate. In addition, the anti-mud interference control algorithm is generated through a medium non-magnetic substance content accumulation prediction model, which effectively deals with the separation challenge of ore with different mud content and grade, and ensures the stability and separation precision of the system under complex working conditions.

The present application relates to a method for determining high content copper, lead and zinc in polymetallic ore and copper-lead-zinc alloy by ICP-AES, and belongs to the technical field of ICP-AES analysis and testing, and the specific steps are as follows: the polymetallic ore and copper-lead-zinc alloy sample is decomposed into wet salt by aqua regia; then hydrochloric acid-ammonium acetate mixed extraction liquid is added, and the mixture is heated to micro-boiling for 10-15 min; the extracted sample is diluted with deionized water in a 250 mL volumetric flask; the diluted sample is shaken and left to clarify; 5 mL of supernatant solution is taken out with a 10 mL large-volume pipette and placed in a 50 mL colorimetric tube, 5 mL of hydrochloric acid-ammonium acetate mixed extraction liquid is added, and the mixture is diluted and shaken; the obtained sample is subjected to ICP-AES testing to determine the content of copper, lead and zinc. The present application avoids complicated operation, solves the problem of serious low test results caused by mutual influence of lead, copper and zinc during testing, and can improve the testing accuracy of high content copper, lead and zinc in polymetallic ore and copper-lead-zinc alloy.

The invention relates to the technical field of comprehensive utilization of dangerous solid waste resources, in particular to a process for extracting multi-metal resources in high-arsenic indium-containing smoke dust, which comprises the following steps: mixing and roasting, obtaining arsenic trioxide and roasting slag, carrying out high-acid leaching treatment on the roasting slag, dissolving indium, and separating lead and bismuth in the roasting slag to obtain a high-indium solution; separating indium and zinc, and performing back extraction; according to the method, the indium-containing waste electrolyte and the high-indium solution are mixed, then the extracting agent is used for extraction, the acidity and the indium concentration of the high-indium solution can be reduced, the extraction recovery rate can be increased, and valuable metal in the waste electrolyte can be recycled. The electrolyte is driven by external force to generate rotational flow, so that the concentration of ions near the electrode is increased under the action of centrifugal force, indium metal is directly obtained, the step of replacing by using zinc powder is omitted, the cost of the indium metal extraction process is reduced, and the extraction efficiency of the indium metal is improved.

The invention discloses a method for extracting metal salts and metals from polymetallic ores or polymetallic materials. The method comprises the following steps: 1) raw material pretreatment: crushing and grinding raw materials into particles; 2) full-wet dissolution extraction: leaching corresponding acid, a corresponding oxidant, a corresponding catalyst and water from the product obtained in the step 1) by using the required metal, stirring and heating to boiling until the required metal in the raw materials is dissolved in the liquid; (3) carrying out solid-liquid separation on the leached product in the previous step, and carrying out mother liquor cooling on the mother liquor subjected to the solid-liquid separation to separate metal elements which can be subjected to alum formation and metal elements which cannot be subjected to alum formation; and (4) sequentially separating out salts of metal elements capable of forming vitriol from the metals capable of forming vitriol according to a sequence from strong vitriol forming capability to weak vitriol forming capability of the metals. The problems that in the prior art, cost is high, and pollution to the environment is large are solved.

The application discloses a kind of complex geological conditions under multi-metal ore blending unit automatic division method, comprising the following steps;Step 1: collecting rock powder test data;Step 2: the rock powder test data collected is preprocessed;Step 3: based on space geometry, find out blast pile borehole boundary point by means of-shape method, form peripheral boundary polygon, and-shape method is used to approach blast pile boundary;Step 4: the blast pile borehole boundary point is expanded outward;Step 5: by means of Voronoi diagram algorithm, blast hole is divided into tessellation polygon on the level, and the range including influence area is formed;Step 6: fine ore blending unit solution division and evaluation, the inverse ratio of the square of the distance of ore block and each ore blending center is weighted, the attribution proportion of each ore block to different unit is calculated, and ore blending unit division is realized.The application realizes the whole process automation from rock powder test data acquisition processing, boundary extraction, unit division to resource quantity estimation.

The invention relates to the technical field of mineral resource recycling and reusing, in particular to a beneficiation method for recycling bismuth resources from polymetallic ore concentrate tailings, which comprises the following steps: obtaining the polymetallic ore concentrate tailings containing bismuth and bismuthite inhibitor sodium sulfide; concentrating the tailings to discharge sodium sulfide, diluting, and then adding a reagent removal agent and a sulfur removal agent for activating treatment to finish the procedures of concentration reagent removal and surface de-intercalation; and roughing, concentration and scavenging are conducted, and bismuth concentrate is obtained. According to the beneficiation method, the surface of the bismuthite subjected to reagent removal treatment can be effectively repaired and optimized, so that the hydrophobic floatability of the bismuthite is recovered and enhanced; meanwhile, the accurate selection and dosage control of the gangue inhibitor ensure that other impurities are effectively inhibited while the bismuth is activated and floated, and the grade of bismuth concentrate is guaranteed.

The invention provides an ocean polymetallic crusting mineralization prediction method. The method comprises the following steps: establishing a mineral-geochemical mapping model reflecting an occurrence mechanism of mineralization elements; constructing a multi-factor coupling metallogenic mechanism judgment model for comprehensively representing three types of control factors, namely a hydrodynamic condition, a seawater geochemical condition and a microbial action; the method comprises the following steps: establishing quantitative evaluation indexes corresponding to the biogeochemical process of each stage according to three microscopic growth stages of multi-metal crusting from colloid formation, metal adsorption to precipitation mineralization, and forming a microscopic mineralization stage evaluation system; coupling a mineral-geochemical mapping model, a multi-factor coupling metallogenic mechanism judgment model and a microscopic metallogenic stage evaluation system, and establishing a bidirectional simulation model; and inputting known crusting quality parameters, inverting the bidirectional simulation model and outputting deduced macroscopic geological environment characteristics, and screening a sea and mountain area with similar environment characteristics in a target sea area according to the macroscopic geological environment characteristics so as to delineate a favorable prospective area of the multi-metal crusting.

The invention belongs to the technical field of mineral processing, and particularly relates to a method for improving the grade of sulfur concentrate by utilizing a centrifugal cyclone separation principle. The method for improving the grade of the sulfur concentrate by utilizing the centrifugal cyclone separation principle comprises the following steps: crushing, screening, grinding and grading the iron-copper-sulfur polymetallic ore, then carrying out bulk flotation, and finally obtaining copper concentrate and sulfur tailings through separation flotation. Sulfur tailings are conveyed to an ore feeding pool, water is added for size mixing, then the sulfur tailings are conveyed into a cyclone for centrifugal rotational flow, sand is discharged from a bottom flowing opening to form settled sand, filtering and dewatering are conducted, and sulfur concentrate is obtained. According to the method for improving the grade of the sulfur concentrate by using the centrifugal cyclone separation principle, the sulfur grade can be improved without introducing redundant chemicals by using the centrifugal cyclone separation principle and adopting a desliming, product extraction and concentration integrated treatment method, the process is simple, and the influence of the chemicals and the like on the environment is reduced.

The present application relates to the technical field of deep-sea mining, and particularly relates to a deep-sea polymetallic nodule collecting device, which comprises a grid cabin body, a grid shovel is arranged on one side of the grid cabin body in the advancing direction and is lower than the feed inlet, a conveying roller is arranged between the grid shovel and the feed inlet, a corrugated roller is arranged between the conveying roller and the feed inlet, and the grid shovel, the conveying roller and the corrugated roller jointly constitute a continuous conveying framework for conveying the polymetallic nodules to the feed inlet. The continuous conveying framework for conveying the polymetallic nodules to the grid cabin body is formed by arranging the conveying roller and the corrugated roller on the grid shovel, the polymetallic nodules scooped up by the grid shovel are pushed to the annular groove of the corrugated roller along the grid gap by the elastic pieces on the surface of the conveying roller, the polymetallic nodules are continuously conveyed to the grid cabin body for storage in the manner of rotating transportation and prying off by the crowbar, and the low-disturbance collection of the polymetallic nodules on the seabed is realized by matching the grid shovel for collection.