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Polyester micro-plastic recycling and impurity removing method and equipment
The invention relates to the technical field of regeneration of waste polyester, in particular to a polyester micro-plastic recycling and impurity removing method and equipment. According to the method, the irradiation technology is adopted for treating the polyester micro-plastic, the polyvinyl chloride is removed by combining electron beam irradiation with the specific gravity method, the radiation dosage and time are accurately controlled, the polyvinyl chloride in the polyester micro-plastic can be effectively removed, the color of the polyester micro-plastic is not affected, and the treated polyester micro-plastic can meet the spinning requirement. The equipment is used for realizing the impurity removal method and comprises irradiation treatment equipment, a separation tank, a cleaning tank, a dehydrator and a drying tower. The equipment is simple in structure and convenient to operate, the radiation dosage and time can be accurately controlled in the impurity removal process, the surface temperature of the polyester micro-plastic is effectively controlled, and production and popularization are easy.
Owner:YUYAO DAFA CHEM FIBER CO LTD
Method for recovering tungsten from tungsten smelting soda boiling slag through reselection
The invention belongs to the technical field of tungsten smelting, and particularly discloses a method for recycling tungsten from tungsten smelting soda boiling slag through reselection, tungsten in the slag is recycled through a physical mineral separation method, a large number of acid-base reagents are not introduced, acid-base wastewater is not generated, and high-energy-consumption roasting or high-temperature acid-base leaching is not needed. The process is simple, large-scale treatment can be achieved, reagent consumption is low, energy consumption is low, closed-loop circulation of mineral separation water can be achieved, no wastewater is discharged, the process is environmentally friendly and free of pollution risks, meanwhile, indexes of the soda boiling residues subjected to innocent treatment can reach industrial solid waste, hazardous waste is converted into common solid waste, and the economic benefit is high. The environment-friendly treatment cost is low.
Owner:CHINA MOLYBDENUM +1
Flotation method for niobium-containing minerals
The invention relates to a flotation method for niobium-containing minerals, and belongs to the technical field of mineral separation. The method comprises the steps that niobium-containing ore is subjected to crushing, ore grinding and size mixing, obtained ore pulp is subjected to weak magnetic treatment to remove strong magnetic minerals, after the pH of magnetic separation tailings is adjusted, a flotation reagent containing an iron mineral inhibitor and an amine collecting agent is added for silicon-niobium bulk flotation, and after the pH of obtained silicon-niobium bulk concentrate is adjusted, the obtained silicon-niobium bulk concentrate is subjected to flotation separation. And a flotation reagent containing a hydroximic acid metal organic complex collecting agent and a siliceous mineral inhibitor is added for silicon-niobium separation flotation, and niobium concentrate is obtained. According to the method, iron gangue mineral removal is achieved through step-by-step flotation by means of the amine collecting agent, silicon separation is achieved by means of the hydroximic acid metal organic complex collecting agent, efficient enrichment of the niobium mineral is achieved, the step of strong magnetic iron removal is avoided, the process is simplified, and the loss rate of the niobium mineral is reduced.
Owner:CENT SOUTH UNIV
Beryllium ore beneficiation separation and enrichment method
The invention discloses a beneficiation, separation and enrichment method for beryllium ore, and belongs to the technical field of mineral processing and purification. In order to solve the problems of low recovery rate, low concentrate grade, large reagent dosage and serious environmental pollution, the beneficiation efficiency and the purity of beryllium ore concentrate are remarkably improved through comprehensive utilization of various separation technologies such as crushing, ore grinding, reselection and flotation, and the quality of the beryllium ore concentrate is improved through graded screening and gravity separation pre-enrichment. The method has the advantages that flotation reagent consumption and tailing generation are reduced to the greatest extent, environmental pollution is reduced, beryllium mineral high-selectivity recovery is realized, stirring effect and product quality are improved by optimally controlling stability of the stirring process, production cost and energy consumption are reduced, production efficiency and safety are improved, and the method is suitable for industrial production. Through the technical effects of fine adjustment strategy, dynamic adaptability, stirring effect optimization and system stability enhancement, optimal control of the stirring speed adjustment gradient is realized, and the stability and consistency of the stirring process are improved.
Owner:SHANGHAI TAIYANG TECHNOLOGY CO LTD
Auxiliary device for rapeseed variety breeding
The utility model provides an auxiliary device for selecting and breeding rape varieties, comprising a box body, a feed box is fixedly installed on one side of the box body, a first inclined plate is fixedly installed inside the feed box, a feed port is fixedly opened on the top of the feed box, a discharge port is fixedly opened on the bottom end of one side of the box body, a fixed block is fixedly installed on one side of the box body, an inclined plate is fixedly installed on one side of the fixed block, a slot is fixedly opened on one side of the inclined plate, a hydraulic rod 2 is fixedly installed on one end of the groove, a partition is fixedly installed on the output end of the hydraulic rod 2, a collecting mechanism is provided on one side of the box body, a recycling mechanism is provided on one side of the collecting mechanism, a mixing mechanism is provided on the bottom end of the box body, a rotating motor is started to drive the vertical bevel gear to rotate, the vertical bevel gear drives the horizontal bevel gear to rotate, the horizontal bevel gear drives the rotating rod to rotate, the rotating rod drives the mixing blades to rotate, and then drives water and seeds to be fully mixed, so that the shriveled seeds are fully floated to the water surface, and the breeding quality is improved.
Owner:QINGHAI HUFENG AGRI TECH GRP CO LTD
Beneficiation method for micro-fine particle low-grade tin ore
The invention provides a beneficiation method of micro-fine particle low-grade tin ore. The beneficiation method comprises the following steps: (1) feeding; (2) physical reselection: a centrifugal drum of the physical concentrator rotates horizontally, and ore pulp is fed to the inner surface of the drum by an ore feeding device and is driven by the centrifugal drum to rotate along with the drum; (3) thickening; (4) the flotation process comprises the following steps: S1, feeding; s2, pulp mixing, wherein a flotation reagent is added into the ore pulp; the flotation reagents comprise a desulfurization flotation reagent and a floating tin flotation reagent, the desulfurization flotation reagent is added into the ore pulp for desulfurization flotation, and then the floating tin flotation reagent is added for floating tin flotation; s3, air inflation is carried out; s4, separating; and (5) secondary concentrate upgrading is conducted, specifically, flotation concentrate enters the physical concentrating machine again, secondary upgrading is conducted, and tin concentrate is obtained. According to the beneficiation method, the tin-containing grade of a tin concentrate product reaches 50% or above, and the comprehensive recovery rate reaches 55% or above.
Owner:CHENZHOU RUIZHI MINING TECHNOLOGY CO LTD
Building engineering waste treatment device with classified storage function
The invention discloses a building engineering waste treatment device with a classified storage function, and relates to the field of waste recycling, the building engineering waste treatment device comprises a treatment box and a material adding opening formed in the upper portion of the treatment box, a buoyancy separation chamber is arranged in the treatment box, and the buoyancy separation chamber and the material adding opening communicate with each other; and a floating collection mechanism is arranged above the buoyancy separation chamber. According to the building engineering waste treatment device with the classified storage function, by means of the ingenious layout of the buoyancy sorting chamber, waste such as wood and plastic is separated from building stone such as concrete, the waste is in a floating state, the waste sinks to the bottom, and then various substances are crushed through the first crushing mechanism and the second crushing mechanism, so that the waste treatment efficiency is improved. The solid waste is destroyed and conveniently recycled, after treatment is completed, materials are classified and stored through different classified storage boxes, the classified storage effect is achieved, useful metal objects in crushed objects can be sorted, and therefore the follow-up recycling process is greatly facilitated.
Owner:YANCHENG YONGYE FOUNDATION ENG CO LTD
Elutriation system for efficient washing and separation of iron ore and control method of elutriation system
The invention belongs to the technical field of mine ore washing equipment, and relates to improvement of the production efficiency of an elutriation machine, in particular to an elutriation system for efficient iron ore washing and separation and a control method thereof.The elutriation system comprises a concentrate pulp mixer, an overflow groove, an elutriation barrel, a supporting platform, an ore washing water path and a control system; the concentrate pulp mixer is arranged above the elutriation barrel, the overflow groove is formed in the lower portion outside the concentrate pulp mixer and is in an inclined table shape, the tailing outlet is formed in the bottom of the inclined table, the middle of the interior of the overflow groove is connected with the elutriation barrel, a middle barrel body of the elutriation barrel is divided into an inner barrel body and an outer barrel body, and multiple sets of magnet exciting coils are arranged between the inner barrel body and the outer barrel body. The lower part of the inner cylinder is connected with an inverted-cone cylinder; a stirring impeller is arranged below the concentrate pulp mixer; the lower part of the elutriation barrel is filled with direct-flow water and rotational flow water through an ore washing water path; the system automatically recognizes working condition changes according to the ore feeding property, the material amount, field data and database set values, the optimal operation mode is selected, a magnetic field, an ore removal valve, a water supply valve and the like are controlled, efficient and intelligent separation of iron ore powder is achieved, and the optimal ore washing effect is achieved.
Owner:TAIYUAN IRON & STEEL (GRP) CO LTD +1
Cylindrical ore washing machine used for hydrometallurgical smelting of laterite nickel ore
Disclosed is cylindrical ore washer for hydrometallurgical smelting of laterite nickel ore, comprising a mounting bracket, a screening component, a regulator, and an ore-washing component. The screening component comprises a frame, a cylinder body, a screening cylinder, and a driving component. The cylinder body is rotatably mounted on the frame along an axis oriented in a first direction. The screening cylinder is housed within the cylinder body, with a feed inlet and a discharge outlet located at opposite ends along the first direction, respectively. The cylindrical wall of the screening cylinder is provided with multiple screen holes, and an inner side wall of the screening cylinder protrudes to form a baffle plate. This disclosure is capable of impeding the movement of ore towards the discharge outlet, thereby prolonging the residence time of the ore within the screening cylinder and enhancing both the ore-washing efficiency and cleaning effectiveness.
Owner:PT ESG NEW ENERGY MATERIAL +3
Jigging magnetic flotation column
The invention relates to the technical field of jigging magnetic flotation columns, and discloses a jigging magnetic flotation column which comprises an inner cylinder, a magnet exciting coil is fixedly connected to the periphery of the inner cylinder, and an outer cylinder is arranged on the periphery of the magnet exciting coil; a conical concentrator is fixedly connected to the bottom of the inner cylinder, and a pulsation mechanism is arranged on one side of the conical concentrator; and the inner cylinder is connected with a feeding mechanism. The technical problems that a large amount of washing water needs to be used for elutriating the magnetic separator, and the concentration of reagents is affected by adding water into a flotation column are solved, the magnetic separation method for magnetite by applying magnetic levitation is possible, the magnetic separation magnetic field intensity is synchronously and reversely adjusted, and the problems of overflow tailing black running and magnetic ore concentrate magnetic inclusion caused by jigging pulsation are solved; the accidents that the ore pulp of the flotation column runs out of the groove and overflows and the elutriation magnetic separator runs out of the groove and overflows are prevented, and the product recovery rate and the concentrate index are also improved.
Owner:SHIJIAZHUANG JINKEN TECH CO LTD
Application of sodium 2, 3-dimercaptopropanesulfonate as inhibitor in low-alkalinity copper-sulfur flotation separation
The invention provides application of sodium 2, 3-dimercaptopropanesulfonate as an inhibitor in low-alkalinity copper-sulfur flotation separation, and relates to the technical field of mineral separation. When the compound serves as an inhibitor, the compound, a collecting agent and a foaming agent are prepared into a composite flotation reagent and used for low-alkalinity flotation separation of chalcopyrite and pyrite, flotation separation is conducted through the steps of one-time roughing, at least one-time scavenging and at least one-time concentration after ore grinding and grading, and copper concentrate is collected; the method can effectively solve the problems that the copper-iron separation effect is poor in the process of flotation separation of the chalcopyrite and the pyrite, the copper recovery rate is low due to addition of a large amount of lime and the like, the chalcopyrite and the pyrite can be efficiently separated under the low-alkalinity condition through the specific flotation process, and the flotation effect on the chalcopyrite is improved.
Owner:GUANGDONG PROVINCE DABAOSHAN MINING CO LTD +1
Movable type placer gravity separation system and separation method
The invention relates to the technical field of mine beneficiation, and discloses a placer movable type gravity separation system and method, and the placer movable type gravity separation system comprises a movable type bearing base, an impact crusher, a spiral classifier and a plurality of parallel shaking tables; a spiral classifier is matched with an intelligent concentration monitoring system. The intelligent concentration monitoring system is composed of an ore pulp concentration sensor, a flow sensor, a PLC and an electric adjusting valve. The feeding end of each shaking table is connected with the discharging end of the spiral classifier through a flow dividing pipeline, and a flow distributing valve is arranged on the flow dividing pipeline. A damping device and crawler-type moving wheels are integrated at the bottom of the movable bearing base, the whole machine is in communication connection with the equipment through a central control cabinet, and data communication and material conveying closed-loop linkage of the raw material crushing unit, the ore pulp grading and concentration regulation and control unit, the multi-machine parallel gravity separation unit, the movable operation regulation and control unit and the central control unit are achieved. The intelligent control framework has the advantages of being accurate in ore pulp concentration regulation and control, high in treatment capacity and stable and reliable in moving operation.
Owner:SHANGHAI RUNWAY GLOBAL CO LTD
Method and device for removing gas-liquid inclusion in quartz sand
The invention discloses a method and a device for removing gas-liquid inclusion in quartz sand. The method comprises the following steps: S1, roasting quartz raw ore; s2, carrying out water quenching and high-voltage electric pulse treatment on the quartz ore subjected to roasting treatment in S1; and S3, purifying the quartz ore obtained in the step S2 to obtain the high-purity quartz sand. According to the method, when the quartz is treated through high-voltage electric pulse water quenching, plasma explosion, thermal stress expansion and the like are generated on a mineral interface, then shock waves and a destructive power field are formed, cracks are generated and expanded, and expansion cracks are generated on the mineral interface in ores while monomers dissociate the quartz and gangue minerals are removed; a discharge channel is established for gas-liquid inclusions and impurities wrapped by the gas-liquid inclusions, damage to aggregative fluid inclusions on the surface layers of quartz particles is intensified, and a high-purity quartz sand raw material with higher quality is provided for semiconductors and photovoltaic quartz glass products.
Owner:WUHAN UNIV OF TECH
Automatic medium adding method for medium warehouse of coal preparation plant, storage medium and electronic equipment
The invention discloses an automatic medium adding method for a medium library of a coal preparation plant, a storage medium and electronic equipment, and the method comprises the steps: obtaining the medium library information of the medium library, and calculating the volume of a to-be-added concentrated medium, the mass of to-be-added magnetite powder and the volume of to-be-added clear water according to the medium library information; inputting the medium library information into a preset medium library digital twin model to obtain key information of the medium library; according to the coordinates of the highest point of the medium pile, a model prediction control algorithm is adopted to generate an optimal traveling track, and the traveling crane is controlled according to the real-time coordinates of the traveling crane, the traveling speed and the optimal traveling track; according to the mass of the magnetite powder to be added, the coordinates of the grab bucket, the opening and closing state of the grab bucket and the mass cumulant of the grabbed materials, direct medium discharging and / or differential medium discharging are / is executed; and if the medium placing in-place signal is received, a clean water pump and a blower device are controlled according to the volume of the clean water to be added. According to the invention, automatic medium adding of the coal preparation plant is realized, and control precision and efficiency are improved.
Owner:SHENHUA XINJIANG ENERGY CO LTD
Intermittent online weighing densimeter for dense medium coal preparation plant
The utility model belongs to the field of densimeters, and particularly relates to an intermittent online weighing densimeter for a dense medium coal preparation plant. The intermittent online weighing densimeter for the dense medium coal preparation plant comprises a constant-volume container, a weighing support and a first three-way pipe, the constant-volume container is arranged above the weighing support, a plurality of weighing sensors are evenly distributed between the constant-volume container and the weighing support, an opening is formed in the top of the constant-volume container, and the first three-way pipe is connected with the constant-volume container. One branch pipe of the first three-way pipe is communicated with the opening, the other two branch pipes of the first three-way pipe are a feeding pipe and a water inlet pipe respectively, and a discharging opening is formed in the center of the bottom of the constant-volume container. According to the utility model, a mode of combining intermittent on-line weighing and flushing is adopted, heavy medium suspension liquid is introduced into the constant-volume container, the constant-volume container is weighed through the weighing sensor after being fully filled, and then the density value is calculated. The whole process is safe and has high precision.
Owner:中创实(北京)科技有限公司
Glass bead screening device
The invention discloses a glass bead screening device, and relates to the technical field of glass bead sorting devices.The glass bead screening device comprises an inner flotation barrel, and a stirring rotating disc is installed at the bottom of the inner flotation barrel in a fixed-axis rotating mode; the outer separation centrifugal barrel is rotatably mounted on the outer side of the inner flotation barrel through a slewing bearing fixed shaft, the centrifugal separation interlayer is divided into a plurality of separation chambers by the separation partition plates, the outer protection barrel is fixedly mounted on a base, and the inner flotation barrel is fixedly connected with the base through a plurality of supporting columns. Floating glass beads are sorted in an overflow mode, and the outer sorting centrifugal barrel is driven to rotate in the overflow process of the glass beads, so that the glass beads with different liquid level heights enter different sorting chambers, and the hollow glass beads are screened and classified according to the density; and further, glass bead products meeting different requirements are sorted out.
Owner:CNBM RESEARCH INSTITUTE FOR ADVANCED GLASS MATERIALS GROUP CO LTD
Dense medium shallow slot separation ash reduction and leaching chlorine reduction joint production device and production process
The invention relates to the technical field of coal ash reduction and chlorine removal, and provides a dense-medium shallow-slot separation ash reduction and leaching chlorine reduction joint production device and a production process, a separation piece is provided with an overflow port, and the overflow port is used for conveying clean coal; a frame; the conveying part is arranged on the rack, is positioned below the overflow port and is used for conveying clean coal; the first storage bucket is rotationally arranged on the rack, and the first storage bucket is provided with a plurality of first water leakage holes; the second storage barrel is arranged on the rack and located in the first storage barrel, the conveying part leads to the second storage barrel, the second storage barrel is provided with a second water leakage hole, after the first storage barrel rotates, the first water leakage hole is communicated with or canceled from the second water leakage hole, and after the first water leakage hole is canceled from the second water leakage hole, the second storage barrel is used for storing water and clean coal; the first water leakage hole and the second water leakage hole are communicated and then used for discharging water. By means of the technical scheme, the problem that in the prior art, the heavy medium shallow groove separation ash reduction and chlorine removal effect is poor is solved.
Owner:HUANENG COAL TECH RES CO LTD +1
Coal gangue all-component resource utilization method based on grading and grading process
The invention relates to a coal gangue all-component resource utilization method based on a grading and grading process, and belongs to the technical field of solid waste resource utilization. Aiming at the technical bottlenecks of high component mixing degree, low resource utilization rate, low product added value and the like in the traditional coal gangue treatment process, the method innovatively constructs an integrated process system of three-stage crushing and screening coordinated multi-path resource conversion. The specific implementation process comprises the steps that firstly, size grading is conducted on coal gangue through a combined crushing system of a jaw crusher, a hammer crusher and an impact crusher, and accurate separation of coarse coal, stone and soil is achieved through a three-stage vibration screening system according to the selective crushing characteristics of different minerals in the aspects of density, hardness and mechanical properties. Wherein the materials with the size fraction larger than 25 mm are subjected to impact type crushing to strengthen quartz component decomposition and separation, the materials with the size fraction ranging from 25 mm to 6 mm are subjected to multi-section hammer type crushing to promote kaolin enrichment, and finally coarse coal, stone and soil products are formed.
Owner:JIANGSU INST OF GEOLOGY & MINERAL RESOURCES DESIGN
Heavy medium cyclone separation ash reduction and leaching chlorine reduction joint production device and production process
PendingCN121060707ASolid solvent extractionWet separationProcess engineeringEnvironmental engineering
The invention relates to the technical field of coal production, and provides a heavy medium cyclone separation ash reduction and leaching chlorine reduction joint production device and a production process, the heavy medium cyclone separation ash reduction and leaching chlorine reduction joint production device comprises a rack, and a heavy medium cyclone and a leaching chlorine reduction device which are sequentially arranged on the rack, the dense medium cyclone is used for separating coal, the leaching chlorine reduction equipment is used for receiving the coal, a liquid leaching agent is contained in the leaching pool, the conveying part is arranged in the leaching pool in a circulating conveying mode, the stirring parts are rotationally arranged relative to the conveying part and move along with the conveying part, and the multiple stirring parts are distributed in the circumferential direction of the conveying part. The stirring part is used for stirring the coal on the conveying part when moving to the position above the conveying part along with the conveying part, and is used for disturbing the liquid flow of the leaching agent when moving to the position below the conveying part. By means of the technical scheme, the problems that in the prior art, coal moves in a stacking state during coal leaching and dechlorination, the coal makes insufficient contact with a leaching agent, and the leaching efficiency is low are solved.
Owner:HUANENG COAL TECH RES CO LTD +1
Retired wind power blade product-mixed fiber sorting system
The invention discloses a decommissioned wind power blade product-mixed fiber sorting system, which comprises a pretreatment system, a primary sorting system and a secondary sorting system, and is characterized in that a vibrating screen of the pretreatment system is used for removing residual dust and carbon deposition impurities on a decommissioned wind power blade product so as to realize primary cleaning; a calcium chloride solution with the saturated solution density of 1.81 t / m < 3 > to 1.83 t / m < 3 > at the temperature of 60 DEG C to 70 DEG C is contained in a salt water tank of the primary sorting system, so that the density of the calcium chloride solution is kept between the carbon fiber density and the glass fiber density, and therefore, after the pretreated retired wind power blade product is put into the salt water tank, the calcium chloride solution is separated from the glass fiber; the carbon fibers and the glass fibers can float or sink in a flotation manner, so that a primary separation function is realized; according to the characteristic that the carbon fibers and the glass fibers are different in color, the secondary sorting system separates a small amount of residual carbon fibers in the glass fibers or separates a small amount of residual glass fibers in the carbon fibers by arranging a color sorter, so that the advantage of improving the purity of the fibers is achieved.
Owner:GUANGZHOU INST OF ENERGY CONVERSION CHINESE ACAD OF SCI
Normal-temperature efficient recovery method for low-grade tungsten in gold, antimony and tungsten multi-metal symbiotic ore
The invention discloses a normal-temperature efficient recovery method for low-grade tungsten in gold, antimony and tungsten multi-metal symbiotic ore. The method comprises the steps that raw ore is ground and then subjected to shaking table reselection, reselected concentrate, reselected middling and reselected tailings are obtained, foam flotation is conducted on the reselected middling, sulfide ore is floated out, coarse-grain tungsten minerals are recycled through reselection of the flotation tailings, ore grinding is conducted on the reselected tailings, gold and antimony bulk flotation is conducted, then scheelite flotation and tungsten concentrate flotation are conducted under the action of a combined collecting agent, and finally tungsten concentrate is obtained. According to the method, aiming at the characteristic that the granularity of the tungsten mineral in the gold-antimony-tungsten symbiotic ore is uneven in thickness distribution, a proper ore grinding separation process and proper ore grinding fineness are selected, the tungsten mineral is prevented from being over-crushed, and underground wastewater is reasonably utilized, so that the use amount of clear water is effectively reduced, and meanwhile, the underground wastewater is recycled; furthermore, an ore pulp heating process is omitted in the tungsten ore concentration stage, the fuel cost is greatly reduced, and therefore the production cost is greatly reduced on the premise that the tungsten concentrate recovery rate is guaranteed.
Owner:HUNAN CHENZHOU MINING CO LTD
Lead-zinc ore dense medium grading selection-flotation combined separation system and separation process
The invention 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 and a separation process, and the system comprises a dense medium separation system and a flotation system. 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, and the fine fraction outlet is connected with the fine ore water treatment unit; the fine fraction outlet is connected with the dense medium fine fraction separation system, the fine ore outlet is connected with the fine ore water treatment unit, and a coarse fraction gravity concentration concentrate outlet of the dense medium coarse fraction separation unit, a fine fraction gravity concentration concentrate outlet of the dense medium fine fraction separation unit and a concentrated fine ore outlet of the fine ore water treatment unit are connected with the flotation system. The method has the advantages of high economic benefit, low production cost, energy conservation, environment friendliness and the like, and the lead-zinc ore dressing efficiency and the metal recovery rate are effectively improved.
Owner:SHENZHEN ZHONGJIN LINGNAN NONFEMET COMPANY +2
Step-by-step enrichment flotation method for niobium ore
The invention discloses a step-by-step enrichment flotation method for niobium ore, and belongs to the technical field of mineral processing. The method comprises the steps that niobium ore is subjected to crushing, ore grinding and size mixing, then weak magnetic treatment is carried out to remove strong magnetic minerals, after pH adjustment is carried out on magnetic separation tailings, a siliceous mineral inhibitor, a foaming agent and a hydroximic acid metal organic complex collecting agent are added for iron-niobium bulk flotation, and obtained iron-niobium pre-enriched concentrate is subjected to reagent removal treatment; and then an amine collecting agent and an iron mineral inhibitor are adopted for iron-niobium separation flotation, and niobium concentrate is obtained. According to the method, the collecting characteristic advantages of a hydroximic acid metal organic complex collecting agent and an amine collecting agent on siliceous minerals, iron minerals and niobium minerals are combined, efficient separation of silicon, iron and niobium is achieved by conducting flotation desiliconization firstly and then conducting flotation deferrization, the conventional desiliconization and deferrization technological process is simplified, the loss rate of the niobium minerals is reduced, and the yield of the niobium minerals is increased. The resource utilization of the niobium ore is effectively realized.
Owner:CENT SOUTH UNIV
A method for extracting lithium from lithium-containing china clay ore by magnetic-flotation combination
The present invention provides a method for the beneficiation of lithium-containing china clay ore by magnetic flotation combined with lithium extraction, adopts the process of "graded desludging-fine mud magnetic separation-magnetic product and graded coarse sand combined flotation" to carry out the beneficiation and recovery of lithium mica, adopts weak magnetic-strong magnetic step-by-step recovery of fine lithium mica in magnetic separation operation, adds YF3-2 as a dispersant and ZY-07 as a collector in flotation operation, performs flotation separation of lithium mica and gangue, improves the separation effect of lithium mica, and obtains feldspar powder with high whiteness, realizing efficient and comprehensive recovery of lithium-containing china clay ore. The present invention is a new method for beneficiation of lithium-containing china clay ore that is stable, efficient, has strong adaptability, good separation effect, high recovery index, and high product added value, and is suitable for promotion and application.
Owner:JIANGXI UNIV OF SCI & TECH
Spiral sand washer for cleaning quartz sand
The invention provides a spiral sand washer for cleaning quartz sand, and belongs to the technical field of quartz sand production equipment, the spiral sand washer comprises a cleaning tank and a spiral blade, and a gap filling strip sleeves the spiral blade along the spiral direction of the spiral blade, the gap filling strip comprises a plurality of rubber strips which are sequentially distributed in the spiral direction of the spiral blade, and each rubber strip is provided with two elastic bags. The gap filling strip is arranged on the outer side of the spiral blade in a sleeving mode, the elastic bag capable of being pressurized to expand is arranged on the gap filling strip, and the gap between the spiral blade and the cleaning tank can be adjusted by adjusting the expansion degree of the elastic bag, so that the cleaning device adapts to cleaning of quartz sand with different particle sizes, and loss of the quartz sand is reduced; the gap filling strip is composed of a plurality of independent rubber strips, and the expansion degree of the elastic bag on each rubber strip can be independently adjusted, so that the gap between the spiral blade and the cleaning tank can be adjusted in a segmented mode, loss of quartz sand is effectively reduced, and meanwhile abrasion of equipment is reduced.
Owner:JIANGSU FENGMING QUARTZ TECH CO LTD
All-particle-size heavy medium beneficiation system and beneficiation method
The present invention relates to the technical field of heavy medium beneficiation, in particular to an all-particle-size heavy medium beneficiation system and beneficiation method. The system is characterized by comprising a grading unit, a heavy medium coarse fraction separation unit, a fine fraction desliming unit, a heavy medium fine fraction separation unit, and a fine fraction demediation / dehydration unit. The grading unit is a unit for dividing a material into a coarse fraction and a fine fraction. A coarse fraction outlet of the grading unit is connected to the heavy medium coarse fraction separation unit, and a fine fraction outlet of the grading unit is sequentially connected to the fine fraction desliming unit, the heavy medium fine fraction separation unit, and the fine fraction demediation / dehydration unit. The present invention overcomes the defects of the particle size lower limits of heavy medium separation and has advantages such as having a high selection comprehensive yield, a good separation effect, and low production costs, requiring little equipment investment, and being energy-saving and environmentally friendly.
Owner:WEIHAI HAIWANG HYDROCYCLONE
Ilmenite beneficiation equipment and ilmenite beneficiation method
The invention relates to the technical field of mineral separation, in particular to ilmenite preparation equipment and method.The ilmenite preparation equipment comprises an ilmenite preparation mechanism, the ilmenite preparation mechanism comprises a supporting frame, a driving mechanism is arranged on the supporting frame, and a spiral groove and the driving mechanism are jointly provided with an anti-accumulation mechanism; the driving mechanism is used for driving the anti-accumulation mechanism to ascend and descend on the spiral groove in a spiral path, and a plurality of separation mechanisms are arranged on the spiral groove. The device has the advantages that the anti-accumulation mechanism is driven by the driving mechanism, the unblocking plate and the unblocking piece are adjusted according to conditions and needs for operation, and the treatment flexibility of the blocked position of heavy ore particles is improved under the condition that the interference to ore pulp flowing is reduced; the flow velocity of the middling zone is slowed down through the separation mechanism, separation of light and heavy ore particles in the middling zone is accelerated, and the separation effect is improved; and through cooperation of the anti-accumulation mechanism and the separation mechanism, the heavy ore particles in the wave-shaped groove position are regularly released.
Owner:HUBEI CHANGJIANG NEW MATERIAL RES & DESIGN INST CO LTD
Enzyme treatment comprehensive equipment for chicken feed
The invention provides an enzyme treatment comprehensive device for chicken feed, and relates to the technical field of chicken feed treatment.The enzyme treatment comprehensive device comprises a screening device, and a main body of the screening device is an arched bin; the screening device comprises a conveying channel, two sets of screening device plates are rotationally arranged outside the conveying channel through bearings, each screening device plate is of a T-shaped structure, and the screening device plates are rotationally arranged in the inner walls of the two sides of the screening device. Connecting plates are fixedly arranged on the sides between the two groups of sifter plates; a feeding hopper with an upward opening is fixedly arranged on the front side of the conveying channel; the screening function is efficient and clean, feed can be fully stirred and screened through cooperation of the two sets of rotating screening device plates and the surrounding screening net, powdery particles in the feed can be accurately separated, meanwhile, the air outlet nozzles driven by the air pump eject air flow, the falling and falling speed of the powdery particles can be increased, and the screening effect is good. And powder can be prevented from drifting away along with airflow through an intercepting net at the top of the screening equipment, and the screened powder is stably guided out through a spiral output rod after being gathered through a V-shaped plate.
Owner:SHANDONG YUKOU POULTRY
Energy-saving mine separation equipment
PendingCN121155758AWater/sewage treatmentMagnetic separationElectric machineAgricultural engineering
Owner:ANHUI JINRISHENG MINING
Intelligent coal gangue washing method guided by deep reinforcement learning and evolutionary computation
The present invention introduces an intelligent coal gangue washing method guided by deep reinforcement learning and evolutionary computation. It involves several steps: S1 involves installing various sensors at key control points of a jig to achieve comprehensive, real-time data acquisition and maintain consistent data collection frequencies; S2 includes gathering data on a server via OPC protocol, using deep reinforcement learning to devise control strategies for jig operations under good communication, and employing evolutionary algorithms when communication is disrupted; S3 entails sending these control strategies back to the control unit through OPC protocol, enabling automated operation of the jig. This method enhances jig operation efficiency through intelligent control, utilizing deep learning, evolutionary computation, and surrogate models to optimize performance even when operational data is incomplete.
Owner:CHINA UNIV OF MINING & TECH