103 results about "Manganite" patented technology

According to the efficient smelting method and device for the silicon-manganese alloy, the manganese ore and the silica are crushed into proper particle sizes, the contact area between the raw materials is increased, the reaction speed is increased, the raw materials are fully reacted in the furnace, the proportion of the raw materials is adjusted, the reaction is more sufficient, and the qualified rate of products is increased; during smelting, a high-precision sensor is used for monitoring parameters such as temperature, pressure, current and voltage in the furnace in real time, a distributed control system is used for automatically adjusting smelting process variables such as electrode lifting, power supply power and raw material feeding speed according to the parameters monitored in real time, and it is ensured that reaction in the furnace is conducted in the optimal state; smelting hot air is filtered through the filter box and then discharged into the mixing box through the centrifugal suction pump, raw materials are scooped up and fall down while mechanical mixing is conducted, the sufficient mixing and preheating effect is guaranteed in cooperation with hot air introduction, and finally the effects of improving the heat source utilization rate, sufficiently mixing and preheating and efficiently smelting are achieved.

The invention discloses a manganese ore deposit exploration effect evaluation method and system based on a spread spectrum induced polarization method, and relates to the technical field of deposit exploration. The method comprises the following steps: constructing a three-dimensional geologic model of a mining area, initially arranging an exploration unit and acquiring actual exploration data, inverting the actual exploration data to generate an initial geologic profile map, performing exploration simulation in the three-dimensional geologic model and acquiring simulated exploration data, acquiring a distortion index and a spatial influence degree of the actual exploration data and constructing an exploration correction model; the exploration unit is reset, corrected exploration data are obtained, and inversion is carried out on the corrected exploration data to generate a corrected geological profile map; the effectiveness of various data obtained in the ore deposit exploration process can be improved, the distribution condition of an ore deposit can be better reflected, and then the accuracy of ore deposit exploration is enhanced.

The invention discloses a manganese ore prospecting method, device, equipment and medium, and relates to the field of data processing.The manganese ore prospecting method comprises the steps that a jet flow center area of a target area is determined according to gravity data of the target area and aeromagnetic data subjected to chemical pole anomaly processing; carrying out chemical test analysis on the manganese ore sample in the jet flow central area, and determining the characteristics of the manganese ore in the jet flow central area; performing French group manganese ore special geological mapping on the jet flow center area, and determining geological section information of a first section of the jet flow center area; determining a prospecting prediction area of the first section by combining the manganese ore characteristics and the geological section information; performing inversion on the French group manganese-containing ore layer of the jet flow center area in combination with known drilling data of the prospecting prediction area, and determining a three-dimensional model of the French group manganese-containing ore layer of the jet flow center area; and based on the three-dimensional model, performing audio magnetotelluric sounding on the jet flow center area, and optimizing predicted manganese ore data of each geographic position of the jet flow center area.

A light-absorbing heat-storage composite material comprises a photo-thermal material and a heat-storage material. The heat-storage material comprises at least one of hydroxide, hydrate, molten salt, and organic phase change heat-storage material. The photo-thermal material comprises brown manganese ore silicate, and the photo-thermal material is used to enhance the absorbance and photo-thermal conversion rate of the heat-storage material, and complete the heat storage at the same time. The invention also provides a method for preparing the light-absorbing heat-storage composite material. The prepared photo-thermal composite material is a photo-thermal storage integrated material that can directly convert light energy into thermal energy and store heat, with small heat energy loss, high photo-thermal conversion efficiency, and cost saving.

The utility model discloses a manganese ore leachate purification and separation device, which belongs to the technical field of preparation of hydrometallurgy electrode materials and comprises a purification tank, ultrasonic generators are fixedly mounted on two sides of the purification tank respectively; a stirring mechanism is arranged in the tank body and comprises a stirring shaft and a stirring paddle, the upper end of the stirring shaft is connected with a stirring motor fixed at the top of the purification tank, and the lower end of the stirring shaft is connected with the stirring paddle; a first feeding hole and a second feeding hole are simultaneously formed in the top of the purification tank; a discharging bottom cover of a metal filter screen is arranged at a discharging opening in the bottom of the purification tank, a discharging pipe and a blowback air pipe are connected to the outer portion of the discharging bottom cover, the other end of the discharging pipe is connected to a vacuum transfer pump, and the other end of the blowback air pipe is connected to a compressed air system. According to the utility model, the ultrasonic generator assists in strengthening and promoting the impurity removal reaction and accelerating the generation of particle precipitates, and meanwhile, high-frequency vibration inhibits the crystallization of manganese compounds, so that the device has the application advantages of greenness, high efficiency, low carbon and energy conservation.

The invention belongs to the technical field of drilling, and particularly relates to a manganese ore water-sensitive stratum geological drilling plugging enhancing method which comprises the following steps: step 1, injecting drilling mud containing a plugging material into a drill hole in a drilling process; and 2, vibration or pulse is applied to the slurry through a ground or underground device. According to the method, vibration or pulses are applied in the drilling process, so that pore throats and micro cracks near the well wall generate a periodic opening and closing effect, and a plugging material is continuously driven to enter and is compacted step by step under the action of dynamic pressure and is not limited to the surface layer of the well wall any more, so that the deepness, compactness and anti-scouring capacity of a plugging layer are improved; the safety and continuity of water-sensitive stratum drilling are enhanced, and the method has a good application prospect in the technical field of geological drilling.

The present application relates to the technical field of mineral processing, and more particularly to a manganese ore magnetic separation device and dry beneficiation process, wherein the magnetic separation device comprises a mounting frame, a first channel, a second channel, a distribution plate, a magnetic roller, a conveyor belt, a feeding mechanism and an auxiliary mechanism. The magnetic roller is composed of a roller shaft, an end cover and a plurality of magnetic rings, the magnetic rings comprising a magnetic gathering plate and a magnetic block and being tightly arranged by a screw rod. The feeding mechanism realizes uniform feeding through a vibration and suspension system. The auxiliary mechanism realizes the vibration and shunting of the ore sand through a guide strip. The beneficiation process comprises crushing, grinding, classification, roasting, magnetic separation and post-processing. The magnetic separation adopts a two-stage type of roughing and cleaning to improve the recovery rate. The present application has the advantages of high separation efficiency, high concentrate purity, low energy consumption, strong adaptability and the like, and is suitable for large-scale industrial production.

To provide a method and an apparatus for producing carbon-recovering type manganese-based alloys by which the reduction of CO2 discharge is made possible.SOLUTION: A method for producing a carbon-recovering type manganese-based alloy includes a step (A) of charging a manganese ore-derived raw material having a manganese oxidation degree of 1.0 to 1.1 and a carbonaceous material into an electric furnace to perform refining, and then performing slag / metal separation, and a step (B) of producing a synthetic fuel using carbon monoxide contained in a by-product gas generated from the electric furnace as a raw material.SELECTED DRAWING: None

The application discloses a preparation method of vanadium-doped and high-hydrated mangan-chromian spinel monocrystal under high temperature and high pressure. The cylindrical mangan-chromian spinel sample is prepared by taking solid rose triangular rhombic manganese carbonate crystal, solid chromium (III) acetate hydroxide crystalline powder, solid vanadium (IV) acetylacetonate oxide powder, solid oxalic acid powder, solid bixbyite powder, solid chromium hydroxide powder and liquid dilute nitric acid as starting raw materials; two pieces of water source sheets are made from the bixbyite powder and the chromium hydroxide powder with a weight ratio of 4:1; the two pieces of water source sheets are placed at two ends of the cylindrical mangan-chromian spinel sample and then are placed into a double-capsule structure experimental sample bin with an inner layer sleeve being a graphite tube and an outer layer sleeve being a gold-palladium alloy tube; the high temperature and high pressure reaction is carried out to obtain the mangan-chromian spinel monocrystal; and the preparation technology blank of the vanadium-doped and high-hydrated mangan-chromian spinel large-particle monocrystal under the current high temperature and high pressure conditions is solved.

This application belongs to the field of electrolytic manganese preparation technology, specifically providing a method for preparing electrolytic manganese from manganese carbonate ore through dry polishing pre-selection and multi-stage purification, including the following steps: a) crushing and screening the manganese carbonate ore to obtain ore of a first particle size; b) subjecting the ore of the first particle size to dry strong magnetic separation pre-selection and tailings removal to obtain pre-selected concentrate; c) grinding the pre-selected concentrate to obtain a grinding product of a second particle size; d) mixing the grinding product with water or return liquid for slurry treatment to obtain a slurry; e) mixing the slurry with sulfuric acid for chemical leaching to obtain a leaching slurry; f) subjecting the leaching slurry to multi-stage purification treatment to obtain a purified electrolyte; g) electrolyzing the purified electrolyte to obtain cathode electrolytic manganese. The electrolytic manganese obtained by this application has the advantages of high purity, low water load, and low reagent consumption.

This invention relates to the field of ferroalloy smelting technology and discloses a high-carbon ferromanganese and its preparation method, comprising the following steps: raw material pretreatment; converter preheating and bottom material laying: pretreated high-grade manganese ore, lime, and coke powder are mixed and added as bottom material to the CLU converter for preheating; iron addition and initial reduction: high-carbon ferromanganese is added to the converter, and graphite fragments are added, and initial reduction is carried out under a pure argon atmosphere; atmosphere control and second-stage reduction: when the carbon content of the molten iron drops to 5.0-5.8%, the reblowing gas is switched to a mixed gas of argon, CO, and CH4, and the remaining high-grade manganese ore, silicon carbide, ferrosilicon manganese alloy, and supplementary coke powder are added in batches, while adjusting the slag composition; endpoint judgment and iron tapping. The high-carbon ferromanganese of this invention has precise composition and high purity, and the preparation method is characterized by high efficiency, low consumption, greenness, and high manganese recovery rate, enabling the industrial-scale production of high-carbon ferromanganese.

To provide a manufacturing method of very low carbon ferromanganese that makes it possible to reduce CO2 exhaust in manufacture of ferromanganese and its manufacturing apparatus.SOLUTION: A method for producing an extremely low carbon manganese-based alloy, comprises: a step (1) of carbon-reducing manganese ore or reduced manganese ore; a step (2) of performing molten slag-metal separation; and a step (3) of reducing the separated molten slag with a non-carbon reductant to perform refining, followed by slag-metal separation.SELECTED DRAWING: None

The invention discloses a method for dissolving and purifying a manganese dioxide-containing mineral. The method comprises the following steps: crushing and grading the manganese dioxide mineral for later use; washing the graded material with dilute sulphuric acid, and then centrifugally filtering to obtain filter residues and filtrate; preparing filter residues into a solid solution with water, adding concentrated sulfuric acid and methyl sulfate for primary dissolution, and filtering to obtain lead-containing minerals and filtrate; and after excessive manganese ore is added into the filtrate, MnCO3 and H2O2 are added, manganese ore which is not completely reacted and obtained through filtering is dissolved again, ammonia water is added into the filtrate for impurity removal, and a MnSO4 solution is obtained. According to the method, manganese dioxide-containing minerals are crushed to obtain particles, the particles are prepared into a solid material solution for secondary reduction acid leaching, the contact area of the mineral particles and reducing agents such as methyl sulfate, methanol and hydrogen peroxide is greatly increased, and methyl sulfate is used as the reducing agent, so that the method has the advantages of high reaction rate, high efficiency, safer storage and transportation and the like; the extraction rate of manganese ions is improved, and the extraction time is shortened.

This invention relates to a method for the efficient separation of iron and manganese components in iron-manganese ore. The method involves mixing iron-manganese ore with intermediate products or vanadium products from the vanadium industry to obtain a mixture; roasting the mixture at high temperature to obtain roasted clinker; leaching the roasted clinker and then filtering it to obtain a manganese- and vanadium-containing leachate and an iron-containing leaching residue; adding a vanadium-precipitating additive to the obtained manganese- and vanadium-containing leachate and adjusting the pH value to induce precipitation; filtering after vanadium precipitation to obtain intermediate products or vanadium products from the vanadium industry and a manganese-containing supernatant; precipitating or drying the obtained manganese-containing supernatant to obtain a manganese product and manganese extraction waste liquid. This invention utilizes intermediate products or vanadium products from the vanadium industry to achieve mineral phase reconstruction of manganese minerals in iron-manganese ore. During this process, the intermediate products or vanadium products can be recycled, achieving efficient separation of iron and manganese in iron-manganese ore and efficient recycling of intermediate products or vanadium products from the vanadium industry.

The invention discloses a method for carrying out reduction roasting on ferromanganese ore through peanut shells and carrying out low-intensity magnetic separation to separate iron and manganese, and belongs to the technical field of metallurgy and mineral processing. The method comprises the following steps: mixing peanut shell powder with ferromanganese ore powder, roasting in a protective atmosphere, cooling, and separating out iron ore concentrate and manganese ore concentrate through a low-intensity magnetic separation method. According to the method, reduction of iron and manganese in the ferromanganese ore is achieved through reducing gas generated in the reduction roasting process of the peanut shells, then the magnetic difference between the reduced iron ore and manganese ore is effectively utilized, and the iron ore concentrate and the manganese concentrate are obtained through low-intensity magnetic separation. The iron ore concentrate and the manganese concentrate obtained through the method can be used for the metallurgical industry, meanwhile, resource utilization of the peanut shell solid waste is achieved, and environmental pollution is reduced.

The present application relates to the technical field of manganese ore granularity detection, and specifically discloses a manganese ore granularity online detection and sorting method based on machine vision, which collects manganese ore two-dimensional color images and three-dimensional depth point cloud sequences, generates particle three-dimensional models through instance segmentation masks, calculates equivalent spherical diameter data sets and particle size frequency histograms, performs Gaussian mixture fitting on the histogram, extracts coarse particle peak positions, fine particle peak positions and valley bottoms, obtains an overlapping area and splits the overlapping area into pure coarse, pure fine and undetermined particle sets, extracts texture and morphological feature cascades, trains a binary classifier using the pure coarse and pure fine sets as pseudo-labels, generates a target state evaluator, inputs the undetermined particle set into the evaluator to obtain confidence probabilities, extracts particles falling into an intermediate uncertain interval and marks the particles as double-attribute transition state particles, divides the probabilities into double-node data objects, calculates a valley bottom mixed index by taking the proportion of the transition state particles, and outputs speed adjustment and sweeping magnetic pole compensation instructions to improve sorting precision and robustness.

The application relates to a preparation method of a manganese-containing pellet and a blast furnace smelting method, which comprises the following steps: step a, crushing, water-fine grinding and drying treatment are carried out on high-manganese lump ore to obtain high-manganese concentrate; step b, the high-manganese concentrate and bentonite are uniformly mixed according to a preset ratio to obtain a mixture; step c, the mixture is added into a disc pelletizer, and a pellet core is obtained in a water dripping ball forming mode; step d, based on the pellet core, the water content ratio and the balling time added into the disc pelletizer are controlled, so that the residual mixture of the mixture is uniformly wrapped on the outer layer of the pellet core, and a manganese-containing pellet is obtained. The method improves the traditional preparation method of the manganese-containing pellet, improves the quality of the manganese-containing pellet, and obtains the manganese-containing pellet meeting the performance standard of the blast furnace smelting. The blast furnace adding mode is optimized, the utilization efficiency of the manganese ore is improved, the iron loss is reduced, and the smelting of the high-titanium slag is improved.

The invention aims to provide a process for smelting 200-series stainless steel in a VOD (Vacuum Oxygen Decarburization) furnace, which comprises the following steps: adding manganese mineral powder into a steel ladle in advance, then pouring molten stainless steel subjected to primary decarburization in an AOD converter into the steel ladle after slag stopping and tapping, and transporting the steel ladle to a VOD furnace station for vacuum decarburization treatment and reduction treatment after vacuum breaking. The addition amount of the manganese mineral powder is limited by the fact that the thickness of slag in a steel ladle at the initial stage of the vacuum decarburization step is smaller than or equal to 70 mm. The manganese ore is used as one of the manganese alloy sources, the cost is low, the manganese ore powder is firstly added to the bottom of the steel ladle and then poured into the molten steel, the manganese ore powder can be rapidly melted and prevented from escaping, the manganese ore powder is fully utilized in the VOD smelting process, and the yield of the manganese ore powder is increased; in addition, the manganese mineral powder serves as slag and an oxidizing agent in the vacuum decarburization process, the amount of blown oxygen needed by VOD decarburization is reduced, the VOD smelting time is shortened, and the VOD smelting efficiency is improved.

The invention provides submerged arc sintered flux for welding SA-508Gr. 3C1.1 steel in third-generation nuclear power equipment and a preparation method of the submerged arc sintered flux. The submerged arc sintered flux comprises, by weight, 20-40 parts of fluorite, 35-50 parts of magnesia, 15-30 parts of aluminum oxide, 10-20 parts of wollastonite, 1-5 parts of silica powder, 0.5-2 parts of silicon iron, 2-5 parts of manganese ore, 1-5 parts of calcium titanate and 1-5 parts of rare earth materials. And the water glass accounts for 25-30% of the sum of the flux powder. The flux provided by the invention has good welding manufacturability, excellent slag removal, beautiful formation and more excellent mechanical properties.

The present invention relates to a method for efficiently separating iron and manganese components from ferromanganese ore based on step-by-step leaching. The method comprises: mixing the ferromanganese ore with an intermediate product or a vanadium product from the vanadium industry to obtain a mixed material; calcining the mixed material at high temperature to obtain a roasted clinker; subjecting the roasted clinker to primary and secondary leaching to obtain a manganese-containing leachate and a vanadium-containing and iron-containing leach residue; precipitating or drying and crystallizing the obtained manganese-containing leachate, and filtering to obtain a manganese product and a manganese-extracted waste liquid; leaching the vanadium-containing and iron-containing leach residue, controlling the pH of the leaching system with an alkaline solution, and filtering after leaching to obtain a vanadium-containing leachate and an iron-containing leach residue. The method of the present invention achieves efficient separation of iron and manganese from ferromanganese ore, as well as efficient recycling of vanadium-containing intermediate products or vanadium products from the vanadium industry.

The invention provides a manganese ore borehole histogram alteration symbol self-adaptive filling method based on geological semantics, and relates to the field of manganese ore geological map drawing, and the method comprises the steps: designing a basic pattern library and a rock pattern library; geological semantics of manganese ore drilling are constructed; establishing an alteration dictionary table through geological semantics; setting alteration symbol replacement rules; according to a rock name in geological semantics, combining with a rock pattern library to obtain the height and width of a single rock pattern; alteration information of rock is extracted, and an alteration information table is constructed in combination with the alteration dictionary table; drawing a rock pattern by combining the height and the width of a single rock pattern through geological semantics; and the rock pattern symbols in the rock patterns are replaced by the alteration pattern symbols through geological semantics in combination with the alteration symbol replacement rule and the alteration information table, the alteration patterns are drawn, and self-adaptive filling of the manganese ore drill hole histogram alteration symbols is completed. According to the technical scheme, the computer is used for mapping, and the working efficiency is high.

The present application belongs to the field of arsenic-containing soil remediation, and particularly relates to a remediation agent for arsenic-containing soil, which comprises steel slag, manganese ore, ferrous source and modified fly ash in a weight ratio of 1-3.5:1-3.5:3-7:1-5; the modified fly ash is a product obtained by subjecting fly ash to iron precipitation, aldehyde amine polycondensation and organic acid modification; and the present application also provides a method for remediation of arsenic-containing soil by using bidens pilosa in combination with the remediation agent. The present application can unexpectedly realize synergy based on the components and proportions of the remediation agent and the combination of bidens pilosa, and can significantly improve the effective arsenic content in soil.

This invention belongs to the field of silver-manganese composite material preparation, and provides an efficient method for preparing silver-manganese composite materials. The method uses crypto-potassium manganese dioxide or α-MnO2 tunnel nanorods as a framework. After controllable reduction to construct defects, silver species are impregnated and anchored using a silver-ammonia complex solution. Following drying and air fixation treatment, silver-loaded defective manganese oxide octahedral molecular sieves are obtained. In the resulting material, silver can be stably distributed at surface defect sites and / or 2×2 tunnel opening sites, forming Ag-O-Mn interfaces. This method balances interfacial reactivity, pore structure stability, and low migration and long-term stability of silver species, solving the problem of simultaneously achieving high activity and structural stability, and has good application value.

The application discloses a method for quickly and effectively treating the accumulation of a blast furnace hearth. The method combines manganese ore furnace washing, large air volume, small ore batch, full coke, concentrated addition of circulating clean coke, and material distribution adjustment, clearly defines the ore batch and load during the furnace washing, adjusts the material distribution, controls the [Si] and [Mn] of the molten iron, the (MnO) in the slag, the physical heat, the binary basicity, the water temperature difference, the air volume usage, the number of air supply tuyeres, the addition amount and addition mode of the manganese ore at different stages, and other operations, so that the accumulation of the hearth can be eliminated and the furnace condition can be restored to the normal level in only 3-10 days.

A method for quickly restoring the condition of a blast furnace can restore abnormal and abnormal conditions to normal in less than one week by systematically adjusting the air supply system, heat system, slag making system and charging system of the blast furnace. The invention has strong systematicity and operability, avoids the use of fluxes such as manganese ore and fluorite that have a greater impact on the blast furnace, saves the cost of restoring the condition of the blast furnace to the maximum extent, and greatly reduces the labor intensity of blast furnace workers.

This invention discloses an iron-manganese ore air flotation roasting magnetization device and its usage method, relating to the field of mineral processing technology. The device includes a feeding unit, a drying and preheating unit, an oxidation furnace, a first gas-solid separator, a reactor, a closed indirect heat exchange unit, and a magnetic separation unit connected in sequence. The outlet of the first gas-solid separator is connected to the inlet of the reactor via a first airlock mechanism. The outlet of the reactor is connected to the inlet of the closed indirect heat exchange unit via a second airlock mechanism. The closed indirect heat exchange unit employs indirect heat exchange. The feeding unit is connected to the inlet of the reactor via a third airlock mechanism. A temperature monitoring unit is installed in the reactor to monitor its internal temperature. A controller is used to control the third airlock mechanism to adjust the temperature inside the reactor based on the temperature measured by the temperature monitoring unit. This device and its usage method avoid the defects caused by secondary oxidation, ensure fluidization and reduction uniformity, and guarantee a stable and controllable reducing atmosphere within the reactor.

The invention relates to the technical field of mineral processing and environmental protection, in particular to a method for preparing iron ore concentrate and manganese concentrate through biomass hydrothermal reduction of manganese ore. According to the method, under the alkaline condition, the ferromanganese ore and the biomass are mixed for a hydrothermal reaction, the biomass generates reducing gas to convert iron minerals in the ferromanganese ore into ferromagnetic minerals, a hydrothermal product is obtained, and then iron concentrate and manganese concentrate are separated out through magnetic separation. According to the method, iron phase conversion is achieved through the one-step hydrothermal reduction method, iron and manganese are efficiently separated in combination with magnetic separation, the separation problem of the low-grade ferromanganese ore is solved, the method has the advantages of being high in iron and manganese recovery rate, high in resource utilization efficiency, clean, capable of saving energy, simple in process, suitable for industrialization and the like, the economic and environment-friendly benefits are remarkable, and a new way is provided for resource utilization of the ferromanganese ore.

This invention belongs to the field of manganese ore flotation, specifically disclosing a novel flotation method for rhodochrosite. The method involves pre-oxidizing the surface of rhodochrosite with an oxidant, followed by flotation using a flotation reagent containing sulfur-nitrogen-hydroxyoxime acid collectors to obtain rhodochrosite concentrate. This invention enhances the surface reactivity of rhodochrosite by oxidizing it, thereby strengthening the interaction between rhodochrosite and sulfur-nitrogen-hydroxyoxime acid collectors, achieving highly efficient flotation separation and enrichment of rhodochrosite. Compared with existing rhodochrosite flotation processes, the oxidation flotation method uses lower collector dosages, exhibits better selectivity, and has promising prospects for industrial application.

The cooling device comprises a cooling structure, the cooling structure comprises a middle plate, a sliding groove, a mounting block and an air blower, the sliding groove is formed in the center of the lower end of the middle plate, the sliding groove is arranged in a cross shape, the mounting block is arranged in an annular shape, and the upper end of the mounting block slides in the sliding groove; the lower end of the mounting block is in threaded fastening with the upper end of the air blower; the movable guiding structure comprises universal wheels, a guiding frame, a guiding groove, a supporting column and a guiding block, the four universal wheels are symmetrically distributed below the middle plate in two groups, the guiding frame is arranged on the outer surface of the storage tank in a sleeving mode, the guiding groove is formed in the middle of the guiding frame, one end of the guiding block is fixed to the supporting column, and the other end of the guiding block slides in the guiding groove. The air blower can be quickly positioned, the position of the whole device can be quickly rectified without affecting the position deviation of the air blower so as to be adjusted to a reasonable position, time and labor are saved, convenience and rapidness are achieved, and the operation efficiency can be improved.