1547 results about "Vanadium" patented technology

The invention discloses a multi-parameter coupling intelligent regulation and control method and system in a vanadium ore smelting process, relates to the technical field of non-ferrous metal smelting automatic control, and solves the problems of feeding deviation and resource chain scission caused by slow response of an existing heat balance model to ore impurity fluctuation, online sensing lag and process island. The impurity concentration and the dielectric constant are obtained in real time through an LIBS / XRF combined probe and a microwave dielectric spectrum, rheological disturbance is dynamically corrected through extended Kalman filtering, a dynamic coupling response model is input, a thermodynamic interference factor is calculated, and a leaching and precipitation strategy is generated; performing mother liquor tail gas material flow collaborative optimization in parallel, constructing a multi-dimensional control vector U, performing iterative updating through near-end strategy optimization in a digital twin and issuing the multi-dimensional control vector U to an edge PLC (Programmable Logic Controller) in a distributed manner, and finally correcting a model weight through online XRD (X-Ray Diffraction) feedback; according to the method, the adaptive capacity to complex vanadium ore component disturbance, the response precision of online control and the inter-process resource circulation efficiency are remarkably improved.

The invention relates to the technical field of filling materials, and particularly discloses an ardealite-based high-strength anti-seepage filling material and a preparation process thereof, the ardealite-based high-strength anti-seepage filling material comprises 50%-65% of pretreated ardealite, 15%-25% of Portland cement, 5%-15% of superfine slag powder, 5%-10% of electrolytic manganese residues, 5%-8% of silica fume, 3%-6% of metakaolin, 2%-4% of a composite alkali activator and 0.5%-1.2% of a polycarboxylic acid water reducer, 0.3%-0.8% of an organic silicon water repellent and 0.05%-0.1% of cellulose ether; according to the invention, through chemical reaction of Mn < 2 + > in the electrolytic manganese residue and SO4 < 2-> in the phosphogypsum, micron-sized manganite crystals (MnAl2 (SO4) 4. 22H2O) are generated to actively fill internal micro-cracks of the material, so that a filling body is endowed with a self-repairing function and the impermeability is improved, and a composite alkali activator composed of NaOH and water glass is used for synergistically activating potential gelling activity of the superfine slag powder and the silica fume, so that the self-repairing filling material is prepared. And the formation of hydration products is accelerated, and 0.3-0.5 T of pulsed magnetic field is applied in the stirring process, so that the manganite crystals are guided to orderly grow along the expected stress direction of the filling body, and the compressive strength is improved.

The invention discloses a method for preparing a carbon monoxide oxidation catalyst by using a waste vanadium-titanium catalyst and electroplating sludge, which realizes the mutual reaction of metal components in the electroplating sludge and components in the waste vanadium-titanium catalyst through the synergistic effect of various physical and chemical treatment methods and additives in the whole preparation process. The complex multi-metal catalyst can be used for photo-catalytic oxidation of carbon monoxide, has a remarkable oxidation effect and has a good application prospect.

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 steel smelting, and particularly discloses a comprehensive utilization method of vanadium titano-magnetite, which comprises the following steps: S1, preparing the vanadium titano-magnetite into pellets, and carrying out reduction reaction to obtain direct reduced iron; s2, a carbonaceous reducing agent and the direct reduced iron obtained in the step S1 are mixed and smelted in a melt separation electric furnace, and slag and molten iron are obtained; a slag former is not added in the smelting process, the purity of the titanium slag is improved through optimal design of the furnace profile of the melting electric furnace and combination of various smelting process control means, the problems that refractory materials of the melting electric furnace are excessively eroded, the service life is short, slag-metal separation is difficult, smelting is difficult to control and the like are solved, and the purposes of high-grade titanium slag and long service life of the melting electric furnace are achieved.

The invention discloses an injection molding high-density alloy steel sintering integrated preparation process, which comprises the steps of alloy raw material proportioning, feed preparation, injection molding, continuous thermal desorption sintering treatment and enhanced heat treatment, and comprises the following steps: selecting gas atomization pure iron powder subjected to vacuum reduction treatment, and matching with chromium, nickel, molybdenum, vanadium, carbon, silicon, manganese and iron powder multi-component alloy proportioning; a phenolic resin-polyformaldehyde composite binder is adopted, 0.5-1.5% of a lubricating additive is added, internal mixing parameters are controlled under the protection of inert gas according to the powder-to-rubber ratio of 72-77%: 23-28%, and the problem that the compatibility of a single binder and alloy powder is poor is solved; three-section gradient temperature control injection molding and a continuous atmosphere furnace sectional degreasing-sintering integrated process are combined, and strengthening heat treatment is matched, so that sufficient diffusion of elements and densification of a green body are realized, and defects are avoided. The technology effectively solves the technical problems that traditional raw materials are high in impurity content and insufficient in element diffusion, and therefore the alloy steel sintering preparation efficiency can be improved.

The invention relates to a modified graphite felt, a preparation method thereof and application of the modified graphite felt in a vanadium redox flow battery, and belongs to the technical field of redox flow battery electrodes. The method comprises the following steps: mixing a graphite felt with a mixed solution, and carrying out thermal reaction to obtain a metal organic framework two-dimensional nanosheet loaded graphite felt; sintering the graphite felt loaded by the metal organic framework two-dimensional nanosheet to obtain a modified graphite felt; wherein the mixed solution comprises a nitrogen-containing organic ligand and a metal salt. According to the modified graphite felt, the surface of the modified graphite felt is coated with a layer of metal nitrogen-carbon two-dimensional nanosheets, the metal organic framework two-dimensional nanosheets are formed by the coordination reaction of the nitrogen-containing organic ligands and the metal salts, metal is uniformly dispersed in the organic framework two-dimensional nanosheets, and then the metal is uniformly dispersed in the metal nitrogen-carbon two-dimensional nanosheets; therefore, numerous metal active sites are uniformly distributed on the surface of the obtained modified graphite felt, nitrogen element doping is formed at the same time, and the electrochemical performance of the modified graphite felt electrode is improved.

A bismuth vanadate pigment comprising a bismuth- and vanadium-containing core doped with one or more of magnesium, calcium, aluminium and phosphorus, the doped core being coated with an oxidic coating comprising one or more of magnesium, calcium, aluminium and phosphorous.

The invention relates to the technical field of hydrometallurgy production, and particularly discloses a method for synergistically extracting gallium and scandium by coupling titanium white waste acid with vanadium extraction converter sludge, which comprises the following steps: mixing titanium white waste acid and vanadium extraction converter sludge in proportion, stirring and leaching to obtain a leaching solution; adding an extraction agent and a diluent into the leaching solution for extraction, and washing to obtain a gallium and scandium loaded organic phase; a first stripping agent is added into the loaded organic phase of gallium and scandium for stripping treatment, and a gallium stripping solution and a loaded organic phase of scandium are obtained; sequentially carrying out alkali precipitation, alkali dissolution and electrolytic treatment on the gallium reverse extraction solution to obtain crude gallium; a second stripping agent is added into the scandium-loaded organic phase for stripping treatment, and a scandium precipitation solution and an organic phase solution are obtained; and the scandium precipitation solution is filtered, washed and subjected to acid dissolution, and a scandium-containing solution is obtained. According to the method, the titanium white waste acid is effectively recycled, rare and precious metals in the vanadium extraction converter sludge are efficiently and synergistically extracted, and the method has a relatively good popularization prospect.

The application relates to a preparation method and application of a ball milling-calcination process-prepared cesium vanadium tungstate mixed heat insulation coating, and belongs to the technical field of heat insulation coatings. The application aims to solve the problems of high preparation cost, strict requirement on equipment, long preparation time and difficult morphology control of vanadium dioxide and cesium tungsten bronze used in the existing cooling coating. The prepared cesium vanadium tungstate mixed heat insulation coating is coated on the surface of glass, mainly aiming at blocking the infrared light thermal radiation in sunlight, the new type of high-efficiency heat insulation film utilizes the light absorption and phase change reflection characteristics of nanometer cesium tungsten bronze and vanadium dioxide to realize heat insulation. The application adjusts the proportion of cesium, vanadium and tungstate to adjust the heat insulation performance, the heat insulation coating is prepared through different proportions of acrylic resin / organic silicon resin, solvent, cesium vanadium tungstate mixed heat insulation coating and the like, and the heat insulation film with excellent infrared blocking property, good stability and excellent light transmittance is obtained.

The invention provides an impurity removal method of a gallium-rich solution for a gallium-based fluorescent powder precursor, and belongs to the field of preparation of gallium-based fluorescent powder precursors. The method comprises the following steps: adding an oxidizing agent into an initial gallium-rich solution to carry out a first reaction so as to remove organic impurities in the initial gallium-rich solution and obtain a first gallium-rich solution; adding a composite impurity removal reagent into the first gallium-rich solution to carry out a second reaction to remove impurity elements such as calcium, silicon and vanadium in the first gallium-rich solution so as to obtain a second gallium-rich solution; and adding a sulfide type reagent into the second gallium-rich solution to carry out a third reaction so as to remove copper and iron impurity elements in the second gallium-rich solution, thereby obtaining the gallium-rich solution for the gallium-based fluorescent powder precursor. According to the method, various key impurity elements such as organic matters, alkaline earth metals, metalloids and heavy metals are directionally and efficiently removed through the impurity removal logic of oxidation impurity breaking, synergistic precipitation and deep vulcanization, so that the total content of the key impurity elements in the gallium-rich solution is remarkably reduced.

The invention relates to a preparation method of bainite steel with high toughness and strength at low temperature, and the strength and toughness of the bainite steel at low temperature are improved by designing process parameters and steel ingot components. The bainite steel with high toughness and strength at low temperature is finally obtained by designing the components of the steel ingot, avoiding the addition of elements such as nickel, molybdenum and vanadium, reducing the material cost and the processing difficulty and accurately controlling the cooling rate of heat treatment. The prepared bainite steel is composed of strip-shaped bainite and thin strip-shaped retained austenite, and the volume fraction of the retained austenite is 5-10%. The tensile strength is not lower than 1240 MPa, the normal-temperature impact is not lower than 120 J, and the impact toughness at-40 DEG C is not lower than 80 J.

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 relates to a brake pad or a disc brake caliper, comprising a support plate receiving a friction material. According to the invention, the support plate is made from low-alloy carbon steel containing less than 0.3% by weight of carbon and vanadium in an amount between 0.2 and 0.3% by weight.

The invention provides a preparation method of a carbon-coated manganese-titanium-doped sodium vanadium phosphate positive electrode material, which comprises the following steps: sequentially adding raw materials of a carbon source, a vanadium source, a phosphorus source, a sodium source, a manganese source and a titanium source into deionized water according to a molar ratio, stirring until the solution becomes clear, and carrying out high-temperature calcination through a sol-gel method and a tubular furnace to prepare a Na (4-x) MnV1-XTix (PO4) 3 / C positive electrode material. The target material is of a sea rock similar structure, the surface of the target material is provided with multiple holes, and due to the morphology, the specific surface area of the material is larger, multiple active sites are provided, and the reaction rate is increased. And the surface is coated with carbon, so that the conductivity of the material is greatly improved. Through a double-doping strategy of partially replacing transition metal vanadium sites with titanium and manganese doping, the prepared electrode material has relatively good cycle stability.

The invention relates to the technical field of metallurgy, and provides a method and system for preparing a spongy TC4 alloy raw material, and the method comprises the following steps: heating and mechanically stirring titanium tetrachloride, aluminum trichloride and vanadium tetrachloride according to a component proportion required for preparing a TC4 alloy to form a uniform chloride mixture; the chloride mixture is subjected to a reduction distillation reaction in the presence of magnesium, and inert gas is continuously introduced in the reaction process for stirring; and after the reaction is completed, separating the byproduct magnesium chloride to obtain the spongy TC4 alloy raw material. According to the scheme, use of high-cost metal raw materials is avoided from the source, meanwhile, the complex steps of electrode preparation and repeated smelting are omitted through the one-step reduction distillation reaction, and energy consumption and time cost are greatly reduced.

The invention discloses a heat treatment process for improving the obdurability of die steel, and belongs to the technical field of metal heat treatment. The invention relates to a heat treatment process for improving the toughness of die steel, which adopts a die steel material with a specific component proportion, and the die steel material comprises carbon, chromium, molybdenum, vanadium, tungsten, nickel, niobium, niobium carbide and trace boron element. By sequentially implementing austenitizing, quenching, deformation heat treatment, multi-stage subzero treatment, pulsed magnetic field assisted tempering, gradient surface hardening and nano-precipitation regulation treatment, the hardness and toughness of the die steel are remarkably improved. Particularly, through the synergistic effect of multiple advanced heat treatment means, the martensite structure is effectively refined, carbide precipitation is strengthened, the surface hardness and the core toughness are improved, the comprehensive performance of toughness and toughness is achieved, and the method is suitable for the field of high-performance injection molds and hot-working molds.

The invention belongs to the technical field of pyrometallurgy and hydrometallurgy, and discloses an efficient leaching method for Joule thermal shock strengthened vanadium titano-magnetite. The Joule thermal shock strengthened vanadium-titanium resource efficient leaching comprises the steps that low-grade vanadium-titanium magnetite ore powder and a carbon source are mixed and then subjected to Joule thermal shock activation treatment, and an obtained activation product is leached through dilute acid or organic acid, so that valuable metal such as vanadium, titanium and iron can be efficiently leached out. Vanadium titano-magnetite and a small amount of carbon powder are subjected to Joule thermal shock, so that the valence state of metal ions is reduced, and the leaching activity of metal is improved. The Joule thermal shock strengthening low-grade vanadium titano-magnetite acid leaching method has the advantages of being high in activation efficiency, high in metal element leaching efficiency and the like.

A preparation method for high-nitrogen austenitic stainless steel. The high-nitrogen austenitic stainless steel comprises the following chemical components in percentages by weight: carbon: ≤0.02%; silicon: 0.4-0.8%; manganese: 10.2-12.5%; chromium: 24.5-26.5%; nickel: 13.5-16.5%; molybdenum: 3.2-4.8%; nitrogen: 0.75-0.95%; phosphorus: ≤0.03%; sulfur: ≤0.0025%; vanadium: 0.016-0.022%; niobium: 0.026-0.034%; copper: 0.2-0.35%; aluminum: 0.01-0.02%; cerium: 0.015-0.025%; and the balance of iron and inevitable impurities. The preparation method comprises the steps of raw material charging, vacuum melting, refining, nitrogen-added alloying, deoxidation and desulfurization, casting, electroslag remelting, and secondary casting. The preparation is implemented by using the processes of smelting in a pressurized induction furnace and electroslag remelting under a protective atmosphere; and nitrogen is added by using a method in which a nitrogen alloy and pressurized nitrogen permeation are combined.

The invention discloses a copper-based catalyst for catalyzing partial hydrogenation of nitrocyclohexane to prepare cyclohexanone-oxime as well as a preparation method and application of the copper-based catalyst. The catalyst comprises a main active component and an auxiliary active component, the main active component is copper, the auxiliary active component is selected from one or more of titanium, vanadium, chromium, molybdenum, zirconium, cadmium, indium, tin, antimony, niobium, silver, iron, zinc, magnesium, aluminum, bismuth, manganese, lanthanum, gold or lead, the total molar ratio of the copper to the auxiliary active component is (100-1): 1, and the catalyst is prepared by adopting a coprecipitation method or a supported impregnation-coprecipitation method. And the process is simple and green. Under mild conditions, the catalyst can realize the conversion rate gt of nitrocyclohexane; the selectivity of cyclohexanone-oxime is greater than or equal to 99%, and the method is obviously superior to the existing non-noble metal system, and is low in cost, good in stability and suitable for industrial production of green synthesis of caprolactam.

The invention provides a method for separating and recovering titanium, iron and vanadium from vanadium-titanium-iron concentrate, and relates to the technical field of comprehensive utilization of vanadium-titanium magnetite. Vanadium-titanium-iron concentrate obtained through mineral separation is subjected to grinding treatment and then leached through high-concentration hydrochloric acid, and acid leaching liquid containing ions such as iron and vanadium and acid leaching residues mainly containing oxides such as titanium and silicon are obtained; leaching the acid leaching residues with sodium hydroxide alkali liquor, removing SiO2 impurities in the acid leaching residues to obtain alkali leaching residues, and washing and heating the alkali leaching residues to obtain a high-purity TiO2 product; carrying out high-temperature pyrolysis on the pickle liquor to prepare superfine powder iron oxide red, and absorbing hydrogen chloride gas formed by pyrolysis by water to form hydrochloric acid for recycling; the method comprises the following steps: washing iron red with water to remove chlorine salt impurities in the iron red, leaching vanadium in the iron red by using a carbonate solution, and filtering to obtain a vanadium solution and iron leaching residues.

A method of preparing a metal matrix composite powder for additive manufacturing, by mixing a metal powder with a ceramic powder, binding the mixed powders together to form an electrode; and using the electrode in an electrode induction gas atomisation (EIGA) process to prepare the metal matrix composite powder. The ceramic can be TiB2, SiC, AlN or a MAX-phase ceramic, the latter having the formula Mn+1AXn where M is a metal, A is an A-group element and X is C, N and / or B, e.g. Ti3SiC2, Al4SiC4 or Al8SiC7. The metal powder can be steel (e.g. stainless steel), titanium, aluminium, cobalt, magnesium, copper, refractory metals, PGMs vanadium and alloys thereof (e.g. 6061 aluminium). Binding to form the electrode can be by cold isostatic pressing, sintering and / or the application of pressure. The powder can be processed by laser powder bed fusion AM or direct energy deposition printing.

The present application provides a kind of method for extracting metal gallium by vanadium extraction converter sludge, comprising the following steps: S1: vanadium extraction converter sludge is leached with leaching agent, and gallium leaching solution is obtained;S2: the gallium leaching solution of step S1 is extracted, and gallium-containing organic phase is obtained;S3: the gallium-containing organic phase of step S2 is back-extracted, and gallium-containing aqueous phase is obtained;S4: the gallium-containing aqueous phase of step S3 is treated to obtain gallium-containing precipitate, and the gallium-containing precipitate is dissolved in alkali to obtain gallium-containing alkali solution, which is treated by electrolysis to obtain metal gallium.The raw material for extracting gallium is unique, the gallium content is high, the gallium extraction process is short, the impurity removal effect is good, and the by-product produced has higher purity and better economic value.

The invention discloses a preparation method of a high-quality solid welding wire. The preparation method comprises the following steps of S1, raw material selection and pretreatment, S2, a drawing forming process, S3, surface treatment, S4, aftertreatment and finishing, S5, quality detection and control and S6, packaging and storage. Before work starts, raw materials are selected, low-carbon steel is selected, the purity of S is controlled to be smaller than or equal to 0.010%, the purity of P is controlled to be smaller than or equal to 0.015%, the size is controlled to be phi 5.5-6.5 mm, then oxide skin is removed through sulfuric acid for 5-10 min, after flushing is conducted through high-pressure water, residual acid is neutralized through alkali liquor, corrosion is prevented, then hot air drying is conducted at the temperature of 100-120 DEG C, it is guaranteed that no water exists on the surface, and the low-carbon steel is obtained. According to the method, the raw materials are pretreated, so that the cleanliness of the raw materials is improved, the production quality of the thick solid welding wire is improved, then the raw materials are smelted after being pretreated, and then a mixture of rare earth, deoxidized silicon, alloy vanadium and copper phosphorus tungsten carbide is added according to different environment requirements so as to increase the variety of the welding wire.

The invention discloses high-performance bridge steel and a production method thereof, and belongs to the technical field of ferrous metallurgy. The bridge steel comprises the following chemical components in percentage by mass: 0.09%-0.11% of carbon; silicon: less than or equal to 0.55%; 1.4%-1.6% of manganese; less than or equal to 0.018% of phosphorus; sulfur: < = 0.005%; 0.15% to 0.20% of niobium; less than or equal to 0.08% of vanadium; 0.006% to 0.03% of titanium; 0.01 to 0.02 percent of chromium; 0.01% or less of nickel; less than or equal to 0.3% of copper; 0.01% to 0.045% of aluminum; less than or equal to 0.3% of molybdenum; not more than 0.008% of nitrogen; and the balance of iron and inevitable impurities. According to the high-performance bridge steel and the production method thereof, by optimizing the component design and the production process, production of the bridge steel with high strength, low yield ratio, high toughness and good welding performance can be achieved.

The invention discloses a method for improving hydrogen-based reduction-electric furnace melt separation efficiency of vanadium titano-magnetite, which comprises the following steps: (1) mixing the vanadium titano-magnetite with slaked lime, magnesite, bentonite and water to obtain a mixture, and pelletizing to obtain green pellets; the addition amount of the slaked lime and the magnesite is controlled to enable the binary alkalinity of the mixture to be 0.4-0.6 and the quaternary alkalinity to be 0.6-0.8; (2) the green pellets are dried and roasted, and oxidizing pellets are prepared; (3) the oxidizing pellets are subjected to hydrogen group reduction, and DRI containing vanadium and titanium is obtained; and (4) adding the DRI into an electric furnace, and then adding carbon for melt separation to obtain vanadium-containing molten iron and titanium-containing slag. According to the method, calcium and magnesium are added into the pellets, the ore phase structure of the vanadium-titanium ore pellets is changed, the reducibility of the vanadium-titanium magnetite pellets is improved, the vanadium-titanium DRI metallization ratio is increased, additional flux does not need to be added in the DRI melt separation process, the vanadium-titanium yield is larger than 92%, and the method has good application prospects.

Provided here are methods for producing a shaped metal-supported catalyst. One such method includes the steps of mixing a support hydroxide with an aqueous mixture of an active metal compound to form a malleable mixture of an active metal incorporated support hydroxide, passing the malleable mixture through a molding device to produce a shaped metal-supported wet catalyst; and drying and calcining the shaped metal-supported wet catalyst. The support hydroxide contains one or more of aluminium hydroxide, silica hydroxide, zirconia hydroxide, cerium hydroxide, titanium hydroxide, lanthanum hydroxide, gallium hydroxide, or niobium hydroxide. The active metal compound can be one or more of vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, and rhenium.

The invention discloses a reconfigurable intelligent metasurface device with switchable transmission and reflection polarization conversion based on deep learning and a design method, and belongs to the technical field of multifunctional metasurface devices and computers. The device comprises a top metal resonator, a middle dielectric layer and a bottom functional layer containing a vanadium dioxide phase change material. The phase state of VO2 is changed through external excitation, dynamic switching of the device between a transmission polarization conversion working mode and a reflection polarization conversion working mode can be achieved, and the problem that an existing device is single in function is solved. The design method comprises the steps that a forward prediction network embedded with physical mechanism constraints is constructed, a loss function of the forward prediction network comprises data loss and physical loss based on a polarization conversion rate physical formula, and the physical consistency of prediction is improved; and constructing a reverse design network based on bidirectional LSTM and CBAM attention mechanisms, and rapidly solving device structure parameters according to the target spectrum. According to the invention, full-space multifunctional regulation and control of the device are realized, and the design efficiency and reliability are remarkably improved.

The invention discloses a metallurgical solid waste all-component collaborative recovery and high-value utilization method, and belongs to the technical field of metallurgical resource recycling and green metallurgy. According to the method, blast furnace gas sludge, iron-manganese slag and vanadium extraction converter sludge are synergistically blended, and after briquetting and drying, reduction smelting is carried out in an inert atmosphere. Reducing the iron into molten iron; volatile metals such as zinc, indium and gallium are evaporated and enter flue gas, and gallium-indium alloy, crude zinc and residual ash are recovered in a graded manner through a multi-stage condensation system; the slag is subjected to acid leaching to enrich scandium, the leaching liquid is separated to extract vanadium, manganese and scandium, and the leaching slag is used for preparing low-carbon cement. According to the method, all-component collaborative recovery of valuable metals in various metallurgical solid wastes and building material utilization of residual solid wastes are realized, and the method has the advantages of high resource efficiency and environmental friendliness.

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.