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80results about How to "Raise the grade" patented technology

A method for enhancing the recovery of fine-grained titanium ore

ActiveCN117463510BGood dispersionImprove low temperature resistanceFlotationMagnetic separation
This invention discloses a method for enhancing the recovery of fine-grained titanium ore, belonging to the field of fine-grained titanium ore beneficiation technology. The steps include: (1) pre-enrichment; (2) preparation of modified collectors; (3) desulfurization; (4) multi-dimensional interface-controlled flotation; and (5) deep quality improvement. This invention, by adding a highly efficient activator, interacts with the surface of ilmenite to oxidize more ferrous ions to ferric ions, thereby increasing the number of active adsorption sites of the collector. Simultaneously, it modifies existing unsaturated fatty acid collectors, thereby increasing their dispersion, dissolution, and adsorption capabilities. Under the combined effect of these two factors, the flotation grade and recovery rate of fine-grained ilmenite are significantly improved, achieving the goal of enhancing the recovery of fine-grained titanium ore. The fine-grained titanium ore recovery method provided by this invention not only obtains qualified titanium concentrate, but also features flexible process implementation, low cost, small wastewater treatment volume, and no secondary pollution.
Owner:KUNMING UNIV OF SCI & TECH

A high-temperature molten slag granulation system coupled with cyclone heat exchange and water mist

This invention discloses a high-temperature molten slag granulation system coupled with cyclone heat exchange and water mist, including a granulation chamber, a high-temperature molten slag transition device disposed at the top of the granulation chamber, a granulation disc disposed inside the granulation chamber and below the high-temperature molten slag transition device, and a transmission shaft and motor for driving the rotation of the granulation disc. A slag outlet is provided at the bottom of the granulation chamber, and multiple spray nozzles are evenly arranged circumferentially on the upper part of the inner side wall of the granulation chamber. At least four tangential high-pressure air inlets are provided circumferentially below the spray nozzles on the side wall of the granulation chamber, each high-pressure air inlet being connected to a high-pressure blower. An arc-shaped guide baffle is provided on the inner side of each high-pressure air inlet. The system of this invention has a compact structure and no additional moving parts. It can adapt to different working conditions such as blast furnace slag and steel slag by only adjusting the air pressure and water volume, and has broad industrial application value.
Owner:CHINA NO 15 METALLURGICAL CONSTR GRP

Efficient energy-saving system for outputting green steam through coupling of shallow geothermal energy and high-temperature heat pump

ActiveCN224246174Umeet operating conditionsMeet production load needsHeat pumpsMechanical apparatusCirculator pumpCarbon sink
The utility model provides an efficient energy-saving system for outputting green steam through coupling of shallow geothermal energy and a high-temperature heat pump, and belongs to the technical field of energy systems. The problem that an existing steam supply system cannot generate green steam energy is solved. Comprising a shallow ground source heat pump system and a high-temperature heat pump system which are connected in series, the shallow ground source heat pump system comprises a buried pipe heat exchange system, a ground source side automatic make-up pump, a water collector, a ground source side circulating water pump, a water segregator and a ground source heat pump host, and the buried pipe heat exchange system is connected with the water collector and the water segregator; the high-temperature heat pump system comprises a heat source side circulating water pump, an evaporator, a compressor, an electronic expansion valve, a condenser, a flash evaporator, a high-temperature hot water circulating pump, a preheater and a high-temperature heat pump automatic make-up pump; according to the utility model, renewable geothermal energy and certain electric energy are utilized for assistance, high-temperature steam is output, the production load requirement of the park is met, carbon emission is avoided, carbon sink is increased, and the economic benefit is high.
Owner:CEEC SHANXI ELECTRIC POWER EXPLORATION & DESIGN INST

Method for improving flotation separation efficiency of micro-fine particle malachite

PendingCN121776002AImprove flotation separation efficiencyto promote floatingFlotation
The invention belongs to the technical field of copper ore beneficiation, and particularly relates to a method for improving the flotation separation efficiency of micro-fine particle malachite. The method for improving the flotation separation efficiency of the micro-fine particle malachite comprises the following steps that quartz ore powder, malachite ore powder and water are mixed according to the mass ratio of 5: 1: (15-40), and first ore pulp is obtained; and a collecting agent is added into the first ore pulp, the final concentration of the collecting agent is made to range from 50 mg / L to 240 mg / L, and second ore pulp is obtained. Inorganic acid is added into the second ore pulp, flotation is conducted, and copper concentrate is obtained. Wherein the collecting agent is obtained by mixing a mixture of fatty acid, fatty alcohol-polyoxyethylene ether and polyethylene glycol according to the mass ratio of (70-82): (2-10): (8-28). The inorganic acid is selected from any one of sulfuric acid, hydrochloric acid and nitric acid. The mass concentration of the inorganic acid is 5%-25%, and 0.1 mL-0. 7mL of the inorganic acid is added into each liter of ore pulp. According to the method, the separation efficiency of the micro-fine particle malachite and the quartz is remarkably improved, and the copper recovery rate of the copper concentrate reaches 85.14%-86.6%.
Owner:WUHAN INST OF TECH

A short process of grinding and flotation for processing fine molybdenite

ActiveCN115970851BShort production processcompact processProcess efficiency improvementGrain treatmentsSlurryIndustrial engineering
The present application belongs to the field of non-ferrous metal dressing process, and relates to a grinding-flotation short process separation method for processing fine molybdenite. The process uses a high-pressure roller mill and a tower mill crushing and grinding process to replace the fine crushing and two-stage continuous ball milling operation in the traditional crushing and grinding process, and uses a flotation column to replace a flotation machine for flotation operation, thereby simplifying the production process flow of molybdenite. The present application has the advantages that the high-pressure roller mill and the tower mill change the crushing and grinding mode of the ore, significantly reduce the crushing and grinding energy consumption, and more effectively protect the flaky structure of molybdenite. The particle size distribution of the grinding product is reasonable, and the amount of fine and micro-fine particles (-20 μm) is reduced, thereby creating good conditions for the flotation operation. The flotation column is used for flotation, compared with the flotation machine, the recycling of middling slurry is reduced, the fine molybdenite that has been dissociated is fully recovered, and the recovery rate of molybdenite is improved. In addition, the flotation column flotation is beneficial to obtaining high-grade concentrate product, and improves the separation index and economic benefits of molybdenite.
Owner:SHENYANG SHENGSHI WUHUAN TECH CO LTD

Polyester cotton blending raw material fiber length grading device

The utility model relates to the technical field of polyester-cotton blending length grading, and discloses a polyester-cotton blending raw material fiber length grading device which comprises a measuring scale, the left end and the right end of the measuring scale are fixedly connected with limiting supporting plates, and the tops of the limiting supporting plates are connected with distance measuring sliding blocks in a sliding mode. According to the utility model, the positioning insertion plates are inserted into the distance adjusting sliding plates, and the distance adjusting sliding plates and the positioning insertion plates are two in number and are symmetrically distributed left and right by taking the measuring ruler as the center, so that the distance adjusting sliding plates can be positioned after being adjusted to proper positions and are prevented from sliding; the fixed plate is fixedly connected with the bottom of the distance adjusting sliding plate, the distance adjusting screw rod is in threaded connection with the interior of the distance adjusting sliding plate, and the distance adjusting screw rod is located at the bottom of the distance adjusting sliding plate, penetrates through the fixed plate and extends into the fixed vertical plate. The whole device can be flexibly adjusted according to different measurement requirements due to the multi-level adjusting structure.
Owner:XIANGYANG MINXIN TEXTILE CO LTD

A device for processing wood-plastic composite

ActiveCN224296584UAffect beautyAffect textureFiberStructural engineering
The utility model relates to the technical field of fiber plastic wood processing device, disclose a kind of fiber plastic wood production and processing device, including fixed frame, the inside lower side of the fixed frame is rotatably connected with lower press roll, the inside upper side of the fixed frame is provided with roller, the outside of the roller is equipped with embossed pattern, the left and right sides of roller are both provided with installation adjusting assembly, the left and right sides surface of roller is both fixedly connected with connecting cylinder, the inside fixed connection of connecting cylinder is equipped with sealed bearing, the side fixed connection of sealed bearing away from roller is equipped with connecting pipe. In the utility model, the cooperation of the connecting cylinder, the sealed bearing, the connecting pipe, the fixed cylinder, the partition, the deflector, the fixed plate and the communication pipe that are arranged, the temperature on the surface of the roller can be distributed in gradient, and the gradient interval can be changed continuously, so that the embossed depth changes randomly, the natural texture formed by the difference of growth environment of wood is simulated, the natural wood grain without repeated rule is realized, and the product grade is significantly improved.
Owner:SHANXI CHENGSHIXIN TRADING CO LTD

Lead-zinc ore dense medium grading selection-flotation combined separation system

The utility model relates to the technical field of lead zinc ore beneficiation, in particular to a lead zinc ore dense medium grading selection-flotation combined separation system which comprises a dense medium separation system and a flotation system, and the dense medium separation system comprises a crushing and screening unit, a dense medium coarse fraction separation unit, a dense medium fine fraction separation unit and a fine ore water treatment unit. An outlet of the crushing and screening unit is divided into a coarse fraction outlet, a fine fraction outlet and a fine ore outlet, the coarse fraction outlet is connected with the dense medium coarse fraction separation unit, the fine fraction outlet is connected with the dense medium fine fraction separation system, and the fine ore outlet is connected with the fine ore water treatment unit. A coarse-fraction gravity concentrate outlet of the dense-medium coarse-fraction separation unit, a fine-fraction gravity concentrate outlet of the dense-medium fine-fraction separation unit and a concentrated fine ore outlet of the fine ore water treatment unit are respectively connected with the flotation system, so that the flotation system has the advantages of high economic benefit, low production cost, energy conservation, environmental protection and the like; and the lead-zinc ore beneficiation efficiency and the metal recovery rate are effectively improved.
Owner:SHENZHEN ZHONGJIN LINGNAN NONFEMET COMPANY +2

A method for cascade separation and resource utilization of calcium-free chromium residue by reducing alkali roasting reinforced calcium-free chromium residue

ActiveCN117660750BHigh enrichment efficiencyRaise the gradeProcess efficiency improvementSlagCascade
This invention relates to a method for enhanced cascade separation and resource utilization of calcium-free roasted chromium slag through reducing alkaline roasting. The specific steps are as follows: Calcium-free roasted chromium slag, a reducing agent, and an alkaline reagent are mixed to obtain a chromium slag mixture; the chromium slag mixture is placed at a first temperature and held for a first time under an inert atmosphere, causing the iron oxides in the chromium slag mixture to be reduced, and the aluminum and chromium oxides to be sodium-treated, while inhibiting the reduction of chromium oxides, resulting in a reduced chromium slag mixture; the reduced chromium slag mixture is filtered to obtain filter residue and an aluminum-enriched filtrate, which can be used for alumina production and the recovery of the alkaline reagent; under an inert atmosphere, the filter residue is placed at a second temperature and held for a second time. Due to the separation of aluminum in the filter residue, metallic iron can be efficiently separated by melting, and chromium can be efficiently enriched in the molten residue. This invention can efficiently achieve the cascade resource utilization of iron, chromium, and aluminum components in calcium-free roasted chromium slag.
Owner:CHONGQING UNIV OF TECH

A luminous window frame

This utility model relates to the field of window frame technology, and in particular to a luminous window frame, comprising a window frame body, a photovoltaic panel installed on the peripheral sidewall of the window frame body, a battery drive box installed inside the window frame body, and two right-angle lamps respectively installed at the two bottom corners of the inner cavity of the window frame body. The photovoltaic panel is electrically connected to the battery drive box, and the two right-angle lamps are also electrically connected to the battery drive box. The light emitted by the two right-angle lamps crosswise illuminates two opposite sides of the inner cavity of the window frame body. This utility model has a simple structure and low cost. By combining photovoltaic power generation and lighting decoration on the window frame, the window frame has a novel structure and good decorative effect, which helps to enhance visual impact and visual enjoyment, thereby improving the grade of the window frame. Moreover, photovoltaic power generation is energy-saving and environmentally friendly.
Owner:LUMENHUB LIGHTING CO LTD

Process for recovering calcium fluoride from calcium fluoride sludge

ActiveCN120483221BEfficiently obtainedgreen gained
The application belongs to the field of sludge recovery, and particularly relates to a method for recovering calcium fluoride from calcium fluoride sludge, wherein the calcium fluoride sludge is pretreated under ultrasonic waves, the power of the ultrasonic waves is above 20 KHz; a flotation reagent is added to the system after ultrasonic treatment for rough selection, and calcium fluoride rough selection material is collected; the flotation reagent comprises an inhibitor and a collector, the collector comprises formula 1 and formula 2 in a weight ratio of 1:1-2, the pH of the slurry in the flotation stage is 3-5.5; the acid for regulating the pH of the slurry is at least one of hydrochloric acid and nitric acid. The application innovatively adopts an ultrasonic process to pretreat the calcium fluoride sludge, and then cooperates with combined collectors in subsequent flotation and joint control of the pH of the flotation process, so that synergy can be achieved, and high-grade calcium fluoride can be efficiently and greenly obtained based on simple processes and means.
Owner:CENT SOUTH UNIV

A method for regulating the dispersion behavior of MgO to reduce magnesium residues in the MHP precipitation process

PendingCN122588372Alow costRaise the grade
This invention provides a method for controlling the dispersion behavior of MgO to reduce magnesium residue in the MHP precipitation process. The method includes preparing a precipitant slurry by mixing an MgO-containing precipitant, a silicate-containing dispersant, and water; then mixing the precipitant slurry with a nickel-cobalt solution to carry out a precipitation reaction; and finally, after solid-liquid separation, washing, and drying, obtaining a nickel-cobalt hydroxide MHP product with a magnesium residue of ≤1%. This invention uses a specific silicate dispersant to effectively reduce the agglomeration of MgO particles. After forming the precipitant slurry, it maintains the alkali-adjusting precipitation effect of MgO as the main precipitant while effectively reducing the magnesium residue in MHP and controlling the silicon impurity content. This method helps solve the technical problems of high magnesium residue and the easy introduction of excessive impurities by inorganic dispersants in existing MHP precipitation processes using MgO, effectively improving the purity of the MHP product.
Owner:JINGMEN GEM NEW MATERIAL CO LTD +1

Antimony-gold concentrate flotation antimony removal process

The invention discloses an antimony-gold concentrate flotation antimony removal process, belongs to the technical field of ore flotation, and aims to solve the technical problem that the gold enrichment performance and antimony removal performance of antimony-gold concentrate flotation need to be further improved in the prior art. According to the method, a step-by-step interface regulation and control system composed of an arsenic directional collecting agent, an antimony selective collecting agent and a lead chelating dispersing agent is constructed, and interface substrate reforming, target phase interface recognition strengthening and terminal interface convergence are sequentially achieved in ore pulp, so that a flotation layering environment with gradient selectivity is formed; according to the technical scheme, the interface stability of associated impurities such as arsenic, antimony and lead can be weakened step by step while interface activation of gold particles is kept, and efficient purification of refractory gold concentrate is achieved.
Owner:GUANGDONG SHENGXIANG NEW MATERIAL TECH CO LTD

A bow

ActiveCN224398465Ueasy to operateNot easy to hurt handsBows/crossbowsBowstringMechanical engineering
The utility model relates to the technical field of sports goods, specifically, relates to a bow. The bow comprises a bow body, the bow body is installed with a bowstring, the bow body is installed with a push-pull rod capable of moving forwards and backwards, the push-pull rod has a launching channel extending in the forward and rear direction, the front end and both sides of the launching channel are open, the bowstring passes through the side of the launching channel, and the push-pull rod is installed with an operating device for fixing and releasing the bowstring. The application has the advantages that: 1, the combination of the push-pull rod and the operating device is used to pull and release the bowstring, which is more convenient and less likely to hurt the hand compared with directly pulling the bowstring with the fingers in the traditional method; 2, arrows or projectiles are launched through the launching channel, are guided through the launching channel, are convenient to aim at, have higher precision, and are favorable to improving the result.
Owner:WEIFANG KAIMEI PRECISION MASCH CO LTD

Low-consumption and high-efficiency flotation reagents for high-calcium fine-mud fluorite ore, application of flotation reagents and flotation methods

PendingCN122538325Aselective inhibitionGuaranteed efficient selectivity
This invention relates to the field of ore flotation technology, specifically a low-consumption, high-efficiency flotation reagent for high-calcium, fine-muddy fluorite ore, its application, and a flotation method. The flotation reagent includes a modifier, a compound depressant, a compound collector, and a frother. The modifier includes sodium carbonate; the compound depressant includes water glass, carboxymethyl starch, sodium hexametaphosphate, and sodium lignosulfonate; the compound collector includes oleic acid, oxidized paraffin soap, sodium dodecyl sulfonate, and benzoyl hydroxamic acid; and the frother includes pine oil. Through the complementary functions of the compound depressant and the compound collector, highly efficient selective inhibition of high-calcium gangue and highly selective collection of fluorite are achieved, effectively dispersing fine mud, reducing froth entrainment, and ultimately obtaining a fluorite concentrate with a stable grade ≥97.0%, meeting the quality requirements of metallurgical and acid-grade fluorite products. This reduces the negative impact of fine nuclei on flotation, stabilizes the fluorite recovery rate, and increases the fluorite recovery rate by 3-6%, achieving dual stability in grade and recovery rate.
Owner:NORTHWEST RES INST OF MINING & METALLURGY INST

A rigid waterproof non-shrinkage anti-crack low-carbon concrete

ActiveCN116768543Bautonomic reliefRelieve drynessMoisture capacityUltimate tensile strength
The application discloses a preparation method of low-shrinkage low-heat low-carbon concrete, and has the technical characteristics that high-water-absorption autoclaved silicate functional aggregate is used to replace gravel and yellow sand, and the mass sum of fly ash and mineral powder in the cementing material can be up to 60% at most. The high-water-absorption water-saturated autoclaved silicate functional aggregate and the expanding agent are added into the concrete, the humidity is released through the functional aggregate, the internal curing and the expansion of the expanding agent are cooperated, the self-shrinkage, the drying shrinkage and the hydration heat shrinkage of the concrete are reduced, and the strength of the concrete is improved; the grading of the fine aggregate of the superfine yellow sand is improved through the addition of the fine functional aggregate, the working performance of the concrete is improved, and the low-carbon environmental protection of the concrete is realized through the large amount of mineral admixtures.
Owner:ZHEJIANG ZHONGJIN ENVIRONMENTAL PROTECTION TECH CO LTD

An embedded flip cover parking lock convenient to maintain

ActiveCN224396148UWith overload protection functionImprove bearing strengthElectric/magnetic detectionRadio wave reradiation/reflectionElectrical batteryRadar
The utility model discloses an embedded flip parking stall lock convenient to maintain, including parking stall lock bottom cavity seat, the parking stall lock bottom cavity seat top surface rotation is connected with the flap component, and the flap component one side is provided with first access cover, and the flap component other side is provided with second access cover, and the parking stall lock bottom cavity seat inside is provided with monitoring part, and the monitoring part includes geomagnetic sensor and radar, and the parking stall lock bottom cavity seat inside still is provided with battery box, and the battery box is with monitoring part setting in first access cover just below, and the parking stall lock bottom cavity seat inside is provided with rotating mechanism, and the flap component one side is provided with angle sensor, and embedded installation reduces the damage of vehicle rolling and external force impact to parking stall lock, and good waterproof, anti -rust design can avoid internal component because of damp, rust and damage to prolong the service life of parking stall lock, and beautiful practical, and the design of ground level makes parking lot whole looks more neat and beautiful.
Owner:SHUNTENG SMART ENERGY (SUZHOU) CO LTD

Beneficiation method for preconcentration of copper cobalt oxide ore

The invention discloses a beneficiation method for pre-enrichment of copper cobalt oxide ores, and particularly relates to the technical field of beneficiation of copper cobalt oxide of low-grade and high-calcium magnesium minerals. The beneficiation step of copper oxide cobalt ore pre-enrichment comprises the steps that copper oxide cobalt ore is crushed to-60 mm; three particle fractions of-60 + 10 mm,-10 + 0.5 mm and-0.5 mm are screened out; carrying out photoelectric separation on a sample with the size fraction of-60 + 10 mm to obtain copper cobalt oxide concentrate I and tailings; carrying out dense medium separation on the sample with the size fraction of-10 + 0.5 mm to obtain copper cobalt oxide concentrate II and tailings; carrying out magnetic separation on a sample with the particle size of-0.5 mm to obtain copper oxide cobalt concentrate III and tailings; and all concentrates are combined, and copper cobalt oxide ore pre-enrichment is completed. According to the method, the copper cobalt oxide ore can be pre-enriched, a large amount of tailings can be discarded, the follow-up selected copper cobalt grade and the selected ore quantity are greatly improved, the cost is reduced, the efficiency is improved, meanwhile, most carbonate ore is discarded, the use amount of acid in the leaching operation process can be remarkably reduced, and the sorting cost is saved.
Owner:WUGANG NONFERROUS METALS CO LTD +1

A lighted side trim strip

ActiveCN224690085UNo light attenuation problem will occurachieve sealingMechanical engineeringLight attenuation
The utility model provides a kind of luminous side trim, belong to automobile parts technical field.A kind of luminous side trim includes LED flexible light source band, side trim body and sealing strip;The utility model is by being provided with LED flexible light source band, and is provided with the installation cavity extending along its length direction on side trim body, and LED flexible light source band and sealing strip are all installed in installation cavity, and the cavity mouth of installation cavity is towards the side wall sheet metal of vehicle arrangement, so that LED flexible light source band can form luminous band at the connecting place between the side trim body and side wall sheet metal of entire vehicle side, realize self luminous by LED flexible light source band, can avoid the light attenuation problem caused by length change, simultaneously, still, it can be through the flexible deformation of itself adapt the bending of side trim body, and adapt the length change of side trim, ensure that the area where the side trim of vehicle side is can form luminous band, more higher in aesthetic quality and grade, visual effect is better, improve vehicle individualization.
Owner:NINGBO YINZHOU MINDA MACHINERY

Method for recycling titanium concentrate from reselection spiral tailings

The invention relates to the technical field of mineral processing, and provides a method for recycling titanium concentrate from reselection spiral tailings, which comprises the following steps of: concentrating and dehydrating the reselection spiral tailings to obtain concentrated ore pulp; the concentrated ore pulp is subjected to first-stage iron removal treatment, and ferromagnetic iron minerals are removed; first-stage strong magnetic separation is conducted on the ore pulp obtained after first-stage iron removal treatment, and first-stage strong magnetic concentrate is obtained; grinding and grading the first-stage strong magnetic concentrate; carrying out second-stage iron removal treatment on the ore grinding and grading pulp; second-stage strong magnetic separation is conducted on the ore pulp obtained after second-stage iron removal treatment, and second-stage strong magnetic concentrate is obtained; the second-section strong magnetic concentrate is sequentially subjected to concentration and third-section iron removal treatment, and flotation feed ore is obtained; and the flotation feed ore is subjected to flotation, and titanium concentrate is obtained. According to the method, the titanium concentrate can be efficiently recycled from the reselection spiral tailings at low cost, the titanium resource utilization rate is increased, and the tailings storage cost and the environmental protection pressure are reduced.
Owner:SICHUAN VANADIUM & TITANIUM IND INVESTMENT & DEVELOPMENT CO LTD +1

Data sample screening and reconstruction method in high nickel matte flotation process modeling

The invention discloses a data sample screening and reconstruction method in high nickel matte flotation process modeling, relates to the technical field of high nickel matte flotation process data modeling, and solves the technical problem of data validity in an actual modeling process. The method comprises the following steps: selecting a system lag parameter p according to the actual process of a high nickel matte flotation system, and reconstructing data samples; marking invalid data; integrating discontinuous data in time, and constructing mutually independent sample data sets; carrying out matrix recombination on the extracted samples, and carrying out RNN modeling. According to the invention, data are preprocessed according to the actual working condition of high nickel matte, invalid data are removed, and some data blocks which are discontinuous in time are obtained.
Owner:JINCHUAN GROUP NICKEL COBALT CO LTD

A biological agent packing material for simultaneous removal of ammonia nitrogen and nitrate, its preparation method and reactor

PendingCN122079363AEffective and multi-dimensionalGood water flow characteristicsWater contaminantsWaste water treatment from animal husbandryWater dischargeIndustrial waste water
A biological agent packing material, its preparation method, and its reactor for the simultaneous removal of ammonia nitrogen and nitrate are disclosed. The steps include: sludge enrichment and acclimatization, preparation of biological agent, preparation of steel slag and coal gangue micro-packing material, and biofilm formation. The reactor includes, from top to bottom, steel slag and coal gangue microporous packing material, porous aeration plates, guide plates, a support layer, a microporous aeration system, and filter plates. A backwash valve is installed at the bottom of the reactor, and the flow rate is controlled by a backwash water tank through a backwash flow meter. Backwashing is achieved by an inlet pump pumping water in conjunction with the porous aeration plates. An exhaust port is provided at the top of the reactor, and the water discharged through the outlet enters a sedimentation tank for sedimentation and drainage. The steel slag and coal gangue microporous packing material used in this invention simultaneously removes ammonia nitrogen and nitrate under the driving action of iron circulation. The preparation process is simple, suitable for domestic sewage and industrial wastewater, and features no secondary pollution, high biological activity, low cost, and simple operation and management. It has significant effects in the simultaneous removal of ammonia nitrogen and nitrate.
Owner:XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY

Method for preparing metallurgical dephosphorizing agent by synchronously gasifying effect of vaporizing flue gas of calcium-based reinforced metallurgical furnace and desulfurizing flue gas

PendingCN122643860Apromote lysispromote generationFlue gasDust control
The application provides a method for synchronously preparing a metallurgical dephosphorizing agent by gasifying flue gas of a calcium-based reinforced metallurgical furnace and desulfurizing flue gas, and belongs to the technical field of metallurgical energy-saving and environmental protection. The method uniformly loads calcium-based materials on coal gasification raw materials through pretreatment loading, sprays the calcium-based materials into a metallurgical furnace gasification flue through a spraying system on the metallurgical furnace gasification flue, realizes coal gasification under the action of high-temperature flue gas, and the loaded calcium-based materials play a role in strengthening organic fuel cracking gasification in the process. Meanwhile, sulfur-containing flue gas released by the organic fuel is solidified by the calcium-based materials, the solidification products enter a dust removal system with dust, the calcium-based materials react with iron-containing components in the dust in the metallurgical furnace gasification flue to generate calcium ferrite with dephosphorizing metallurgical performance, and the calcium ferrite enters the dust removal system with the dust. The collected dust removal ash is used for high-value dephosphorizing agent production after being separated and purified through magnetic separation, and provides an effective way for the sustainability and economical production of the metallurgical industry.
Owner:WUHAN UNIV OF SCI & TECH

A method for flotation separation of chalcopyrite and pyrite

This application provides a method for flotation separation of chalcopyrite and pyrite, relating to the field of mineral flotation. The method involves mixing and flotation of the minerals to be processed, including chalcopyrite and pyrite, with a chalcopyrite collector to obtain chalcopyrite concentrate and pyrite tailings. The general structural formula of the chalcopyrite collector is: [Formula omitted]. This chalcopyrite collector utilizes the high selective affinity of its propyne ester group for copper-active sites on the chalcopyrite surface and its inertness to iron sites on the pyrite surface, achieving precise identification and collection of chalcopyrite from the molecular structure of the reagent, significantly improving the grade and recovery rate of the copper concentrate. The R group is a hydrophobic group facing the pulp, significantly enhancing the surface hydrophobicity of the chalcopyrite particles, thereby enabling them to adhere to flotation bubbles and float.
Owner:BEIJING MINING & METALLURGICAL TECH GRP CO LTD

A flotation recycling method for waste lithium-ion batteries with zero fluorine and carbon emissions

This invention discloses a flotation recycling method for waste lithium-ion batteries that produces no fluorine and no carbon emissions. The method includes: subjecting a mixture of positive and negative electrodes from waste lithium-ion batteries to low-temperature treatment, causing the surface binder to deform and exposing the surface of the positive electrode material particles; performing at least one of the following steps: adjusting the treated material to obtain a flotation slurry; sequentially adding an organic hydrophilic inhibitor, a collector, and a frother to the flotation slurry for flotation to obtain sediment; adjusting the sediment, adding the collector and frother, and performing flotation again to obtain ternary lithium concentrate. This invention utilizes low-temperature treatment to shrink and deform the organic film on the surface of the positive electrode material particles, exposing the particles and amplifying the hydrophilicity / hydrophobicity difference between the positive electrode material and graphite. The organic hydrophilic inhibitor binds to the hydrophilic surface of the positive electrode material particles, inhibiting the floating of the positive electrode material, thereby enhancing the flotation separation effect.
Owner:ZHENGZHOU UNIV +1

A rainproof and water-blocking structure for the bottom frame of doors and windows

This utility model discloses a rainproof and water-blocking structure for the lower frame of doors and windows, mainly composed of a water-blocking plate, a slot seat, and a snap-on edge with a snap-on head at one end and fixedly connected to the water-blocking plate at the other end. The slot seat has an upper fixed end and a lower fixed end located below the upper fixed end. The water-blocking plate is connected to the upper fixed end through its upper edge, and the snap-on edge is connected to the lower fixed end through its snap-on head. This utility model guides rainwater flow through the physical structure of the water-blocking plate, rather than relying on chemical waterproofing methods such as sealant to achieve waterproofing. Therefore, it reduces the dependence on auxiliary waterproofing methods such as sealant and significantly improves the reliability of waterproofing.
Owner:CHENGDU GUOCHUANG DOORS & WINDOWS CO LTD

A fermented honeysuckle tea and its preparation method

ActiveCN116210781BTight shapeflat shapeTea substituesChlorogenic acidLactic bacteria
This invention proposes a honeysuckle fermented tea and its preparation method, including selecting unopened honeysuckle buds, blanching them to obtain honeysuckle bud blanching material; taking honeysuckle flowers and fragrant lotus flowers, withering them at low temperature, drying them, and pulverizing them to obtain composite flower powder; pre-treatment of honeysuckle branches and leaves: taking honeysuckle branches and leaves, withering them naturally to obtain withered branches and leaves; mixing some of the honeysuckle bud blanching material, flower powder, and withered branches and leaves, inoculating them with lactic acid bacteria solution, micro-fermenting them, mixing the micro-fermentation product with the honeysuckle bud blanching material, stirring, and steam drying to obtain honeysuckle fermented tea. The honeysuckle fermented tea obtained by this invention has a chlorogenic acid content of 1.75-2.14%. It has a fine, tight, uniform, clean, and greenish-yellow appearance. The aroma is harmonious with the floral fragrance, pure and long-lasting. The taste is sweet, smooth, fresh, and mellow. The tea soup is clear and bright. The tea leaves are tender, uniform, and bright. The sensory evaluation score is 97 points. It is of good quality, high grade, and has excellent brewing resistance. All tested items meet the requirements of GH / T1091-2014 "Substitute Tea". The product quality is stable.
Owner:HUNAN LONGHUI YIDU SELENIUM RICH TEA CO LTD

A beverage bottle with puncture function

ActiveCN224278216UNo sense of obtrusivenessComfortable to hold
This utility model discloses a beverage bottle with a puncture function, relating to the field of beverage packaging. The beverage bottle includes a bottle body, a storage bottle, a puncture component, an inner cap, and an outer cap. The outer diameter of the storage bottle is the same as that of the bottle body and is screwed onto the first opening of the bottle body via threads. The puncture component is axially movable within the sealed cavity of the storage bottle. The inner cap is screwed onto the second opening at the top of the storage bottle, and its driving structure is coupled with the movement of the puncture component. When screwed on, it pushes the puncture component downwards to puncture the bottom of the storage bottle through a sliding transmission on an inclined plane. The outer cap has the same outer diameter as the bottle body and is fitted over the inner cap. This utility model achieves a smooth transition in appearance, is easy and convenient to operate, and improves safety and product quality.
Owner:LUOBEI HAOSHAN ECONOMIC & TRADE CO LTD

Process for smelting manganese-rich slag from magnetically roasted manganese ore

The application provides a process for smelting manganese-rich slag from magnetized roasted manganese ore, and belongs to the technical field of manganese-rich slag production. The process comprises a preheater, a rotary kiln, a cooler and a blast furnace smelting process. After the manganese ore is magnetized and roasted in the rotary kiln, the cooled and magnetically separated and proportioned material is sent into the blast furnace for smelting, fire enrichment, separation and extraction to produce the manganese-rich slag. The application changes the production process, and performs hot melting roasting on low-grade polymetallic symbiotic and associated difficult-to-select primary lean manganese ore to produce the manganese-rich slag through fire enrichment, separation and extraction.
Owner:金冶(内蒙古)工程技术有限公司

Fine fraction flotation machine with inflation system and use method of fine fraction flotation machine

PendingCN121755350AIncrease the probability of collisionImprove efficiencyFlotationHigh concentrationAeration system
The invention provides a fine fraction flotation machine with an inflation system and a using method of the fine fraction flotation machine. The fine fraction flotation machine comprises a groove body, a foam groove, a scraper component, an ore pulp annular pipe, an air annular pipe, a plurality of inflator assemblies and a tailing box. The ore pulp ring pipe and the air ring pipe are concentrically arranged at the top of the tank body, and the inflator assemblies are evenly arranged along the ore pulp ring pipe and used for fully mixing ore pulp and air in a pipeline and shearing the mixture to form fine bubbles, and then the fine bubbles are evenly sprayed into the cross section of the tank body through the branch pipes. No mechanical stirring exists in the tank body, turbulent flow is rapidly weakened after mixed fluid enters the tank body, and efficient static separation of mineralized bubbles and gangue minerals is achieved. The collision probability and the recovery rate of fine-grain minerals can be remarkably improved, gangue entrainment is effectively restrained, the concentrate grade is guaranteed, the inflation amount is adjustable, the structure is simple, operation is stable, and the flotation device is suitable for flotation operation of the high-concentration fine-grain minerals.
Owner:BGRIMM MACHINERY & AUTOMATION TECH CO LTD