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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
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
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
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
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
Magnetic attraction lining and double-medium energy-saving ore grinding system
The utility model discloses a magnetic suction lining and double-medium energy-saving ore grinding system, which comprises an ore feeding port, an overflow type mill cylinder, a magnetic suction lining, double grinding media, a hollow shaft neck and a reverse spiral blade, the whole magnetic suction lining has magnetism and is tightly attached to the overflow type mill cylinder by means of magnetic force; double grinding media are arranged in the overflow type mill cylinder and are used for grinding minerals; a hollow shaft neck is arranged at one end part of the overflow type mill cylinder body and is used for discharging mineral products; an ore feeding opening is formed in the other end part of the overflow type mill cylinder body and is used for guiding a sand setting product of the hydraulic classification cyclone to enter the overflow type mill cylinder body; reverse spiral blades are arranged on the hollow shaft neck, and the rotating direction of the blades in the ore grinding operation is opposite to the rotating direction of the overflow type mill barrel. Through the multi-layer and multi-link fine design, the whole ore grinding process is more efficient and accurate, and the utilization rate and the production efficiency of mineral resources are greatly improved.
Owner:ANHUI MASTEEL MINING RESOURCES GRP NANSHAN MINING CO LTD +1
Automatic separation seed water separation device for plant cultivation
The invention relates to the technical field of seed water separation, and discloses an automatic separation seed water separation device for plant cultivation, which comprises a water separation tank, one side of the top of the water separation tank is fixedly connected with an inclined U-shaped guide hopper, and the bottom of the inner wall of the water separation tank is fixedly connected with a partition plate; an inclined filter plate is fixedly connected between the top of the partition plate and the inner side face of the water separation tank. According to the automatic separation seed water separation device for plant cultivation, through the arrangement of the boiling assembly, seeds in the water separation tank can be subjected to surging and guiding treatment, the water-separated seeds are guided out through the discharging assembly, and the continuous water separation function is achieved; the problems that in the prior art, a water separation device can only carry out water separation treatment on a specified amount of seeds, after water separation is finished, separated seeds need to be guided out, and then the next round of water separation work can be carried out are solved, the continuous water separation function is lacked, then the water separation efficiency is reduced, and the water separation work of batch seeds cannot be met are solved.
Owner:GANZHOU YAOKUN AGRI CO LTD +2
A mineral separation method for separating and enriching tantalum, niobium and zinnwaldite from feldspar tailings
A mineral separation method for separating and enriching tantalum, niobium and zinnwaldite from feldspar tailings, comprising the following steps: Step 1: Predispersion; Step 2: Vibration classification; Step 3: Strong dispersion; Step 4: Magnetic rough separation; Step 5: Magnetic cleaning; Step 6: Strong dispersion; Step 7: Flotation rough separation; Step 8: Flotation cleaning; Step 9: First pressure filtration; Step 10: Magnetic scavenging; Step 11: Second pressure filtration; Step 12: Flotation scavenging. Compared with the prior art, the advantages of the present invention are as follows: (1) Using a high-speed shearing machine for dispersion can greatly improve the dispersion effect and is beneficial to the subsequent separation of various minerals; Using a high-intensity slurry magnetic separator can effectively remove slime, which is beneficial to the further flotation separation of tantalum and niobium minerals from zinnwaldite and improve the recovery rate; Using a flotation column for the separation of tantalum and niobium ore and zinnwaldite has a large processing capacity, a high recovery rate and environmental neutrality, which is beneficial to environmental protection.
Owner:GUANGZHOU XINYIDE MASCH TECH CO LTD
Method for recovering iron in tailings of copper separation from copper smelting slag through combination of microwave-assisted oxidizing roasting and magnetic separation
The invention discloses a method for recovering iron in tailings of copper separation from copper smelting slag through combination of microwave-assisted oxidizing roasting and magnetic separation, and belongs to the technical field of metallurgical solid waste resource utilization. The method comprises the steps that high-temperature copper smelting slag is subjected to water quenching, crushing and ore grinding, flotation and copper removal to obtain tailings containing silicon iron, after a calcium-based additive is added for ball milling and mixing, microwave oxidizing roasting is conducted under the oxygen-enriched condition, roasting products are subjected to high-gradient magnetic separation after crushing and ore grinding, and iron ore concentrate and magnetic separation tailings are obtained. According to the method, the strong wave-absorbing characteristic of fayalite is utilized, the roasting temperature and energy consumption are reduced through microwave heating, iron-silicon separation is achieved through a calcium-based additive, and iron is recycled through magnetic separation in one step. The final magnetic separation iron recovery rate reaches 85% or above, the iron ore concentrate grade exceeds 60%, magnetic separation tailings can be used as building materials, the process is simple, the cost is low, environment friendliness is achieved, the defects of a traditional process are overcome, and high-value utilization of solid waste is achieved.
Owner:KUNMING UNIV OF SCI & TECH
A high-efficiency recovery method of copper in chalcocite type copper concentrate sulfuric acid roasting acid leaching residue
The application provides a high-efficiency recovery method for copper in chalcocite-type copper concentrate sulfuric acid roasting and acid leaching residue, and belongs to the technical field of mineral processing.The application recovers sulfide copper minerals and intergrowth of the sulfide copper minerals and cupric ferrite in chalcocite-type copper concentrate sulfuric acid roasting and acid leaching residue through flotation, then recovers cupric ferrite and intergrowth of the cupric ferrite and the sulfide copper minerals in middlings and tailings in the flotation through magnetic separation, and finally recovers superfine cupric ferrite and copper mineral particles completely wrapped by gangue minerals in the tailings in the magnetic separation through chemical dissociation.The application uses the method of combination of flotation, magnetic separation and chemical dissociation, strengthens recovery of the copper in chalcocite-type copper concentrate sulfuric acid roasting and acid leaching residue, and the comprehensive recovery rate can reach 91.18%.
Owner:KUNMING UNIV OF SCI & TECH
Mechanical stirring type coarse particle fluidized bed flotation device and method
The invention provides a mechanical stirring type coarse particle fluidized bed flotation device and method.The groove body structure of a flotation groove comprises an inner groove body and an outer groove body, the inner groove body is arranged in the outer groove body, and a circulation channel is formed between the inner groove body and the outer groove body; the ore feeding distribution device is arranged at an ore feeding inlet in the upper part of the flotation tank body; the stirring device comprises a stator and an impeller which are arranged in the flotation tank body; the flow guide hole grid plate is arranged in the inner groove body and located above the stator and the impeller. Stable rising water flow is generated through the suction effect of the impeller and the circulation channel, the fluidization flotation process can be achieved without adding extra clear water, and the problem that a fluidization flotation column is large in water consumption is solved. The flow guide hole grid plate is arranged in the inner tank body, so that disordered fluid coming out of an impeller stirring area is converted into uniform and stable rising fluid, and the stability of a bed layer and mineralized bubbles is improved. The problems that a traditional flotation machine is poor in coarse particle recovery effect, and a fluidization flotation column is large in water consumption and poor in fine particle selectivity are solved.
Owner:BGRIMM MACHINERY & AUTOMATION TECH CO LTD
Method for separating iron powder through Bayer process red mud pretreatment
The method for separating the iron powder through Bayer process red mud pretreatment comprises the steps that Bayer process red mud slurry and a liquid medium are mixed, and mixed slurry is formed; adding a pretreatment aid into the mixed slurry, and pretreating the mixed slurry to modify the surface property of the red mud iron powder in the mixed slurry or improve the rheological property of the mixed slurry; the pretreated mixed slurry is subjected to rotational flow separation, the red mud iron powder is enriched in a solid enrichment phase obtained through rotational flow separation, and the solid enrichment phase containing the red mud iron powder and a liquid dispersion phase are obtained; separating the solid enriched phase containing the red mud iron powder to obtain iron oxide powder; and recycling the liquid dispersion phase as a liquid medium mixed with the Bayer process red mud slurry. According to the embodiment of the invention, through the synergistic effect of mixing, pretreatment and cyclone separation, the separation efficiency and grade of the red mud iron powder are effectively improved from multiple aspects of physical property adjustment, surface property modification and the like.
Owner:CHALCO SHANDONG CO LTD
Method for purifying feldspar concentrate through superconducting strong magnetic separation
The invention discloses a method for purifying feldspar concentrate through superconducting high-intensity magnetic separation, which belongs to the technical field of purification of high-quality industrial raw materials and comprises the following steps of crushing, ore grinding, desliming, high-intensity magnetic roughing, high-intensity magnetic concentration, grading, fine particle high-intensity magnetic concentration and solid-liquid separation and dehydration. Aiming at the differences of hardness, granularity, dissociation degree, specific susceptibility and the like between the feldspar ore and associated minerals contained in the feldspar ore, a reasonable physical mineral separation process is selected, and the raw ore is selected into three products, namely a building raw material which can be used as raw materials of cement, aerated bricks and the like, and a medium-grain feldspar concentrate and a fine-grain feldspar concentrate which can be used as raw materials of photovoltaic glass; in addition, all the processes are environment-friendly physical ore dressing, no pollution is generated, a flotation process is not needed, zero emission of tailings and tail water is achieved, and the method is suitable for large-scale production and application.
Owner:SHANDONG HUATE MAGNET TECH CO LTD
Gravity-flotation synergistic recovery stage grading process for tin-containing spodumene ore
The invention discloses a reselection-flotation synergetic recovery stage grading process for tin-containing spodumene ores, stage separation is realized by adopting a reselection-flotation synergetic beneficiation method, the process is efficient and green, ore properties such as specific gravity, granularity and dissemination relationship of the tin-containing spodumene ores are fully utilized, metal loss of lithium and tin caused by over-grinding is avoided, and the quality of the tin-containing spodumene ores is improved. And meanwhile, recovery of spodumene and associated cassiterite in coarse and fine particle fractions is achieved through the dense medium mineral separation, reselection and flotation processes, minerals in different particle fractions are recovered in a stepped mode under the optimal equipment environment and technological parameters, and valuable metal resources such as tin and lithium are recovered to the maximum extent. In addition, the invention creatively provides the method for recycling tin through reselection of the lithium concentrate smelting slag, and full recycling of resources can be truly achieved.
Owner:ZIJIN MINING GROUP CO LTD +1
A polymetallic tin placer beneficiation process
The application discloses a multi-metallic sand tin ore beneficiation process, adopts the equal floatation-mixed floatation-gravity separation backwater process, lead concentrate yield is 0.39%, lead grade is 16.62%, recovery rate is 15.93%; zinc concentrate yield is 1.08%, zinc grade is 39.32%, zinc recovery rate is 46.92%, the gravity separation indexes are as follows: tin concentrate yield is 0.39%, tin content is 40.57%, tin recovery rate is 51.66%; low-grade tin concentrate yield is 0.51%, tin content is 3.17%, tin recovery rate is 5.28%. The beneficiation process recovers lead, zinc and tin in the sand tin ore, has high beneficiation indexes and good beneficiation effect.
Owner:LIUZHOU HUAXI COLORED DESIGN & RESEARCH INSTITUTE CO LTD
A beneficiation separation method of high-copper and low-zinc type high-sulfur polymetallic ore
The application discloses a beneficiation separation method for high-copper and low-zinc high-sulfur polymetallic ore, which comprises the following steps: A, after crushing the raw ore, ball milling and grading are performed, the sand is returned to the ball mill, and the overflow product is fed into a copper roughing process; B, copper roughing is performed; C, the roughing concentrate is subjected to copper cleaning process to obtain copper concentrate, and the roughing tailings are fed into a copper scavenging process; D, copper scavenging is performed, the scavenging tailings are subjected to grading, the sand is returned to the ball mill, and the overflow product is fed into a zinc roughing process; E, zinc roughing is performed, the roughing concentrate is subjected to zinc cleaning process to obtain zinc concentrate, and the roughing tailings are subjected to zinc scavenging process to obtain zinc tailings. The application efficiently realizes the separation of copper concentrate and zinc concentrate by fully utilizing the mineral particle size distribution characteristics, introducing a particle size grading system and improving the flotation reagent, and has the technical characteristics of high separation yield, easy operation, stable separation index and the like.
Owner:SICHUAN LIWU COPPER IND +1
Intelligent seedling raising device and method suitable for garden planting
PendingCN120435953ASeed immunisationGerminating apparatusAgricultural engineeringMechanical engineering
The invention discloses an intelligent seedling culture device and method suitable for garden planting, and relates to the technical field of seed and seedling culture. The intelligent seedling raising device and method suitable for garden planting comprise a material uniformizing plate, a plurality of sliding ways are formed in the top of the material uniformizing plate in a penetrating mode, the inner wall of each sliding way is slidably connected with a moving plate, a surrounding groove and strip-shaped grooves are formed in the bottom of the material uniformizing plate, a plurality of strip-shaped plates are connected to the side face of a surrounding frame at equal intervals, and the material uniformizing plate is connected with a square plate in an inserted mode; corner plates are connected to the four corners of the square plate, and the corner plates are used for fixing the first cloth towel and the second cloth towel. According to the intelligent seedling raising device and method suitable for garden planting, seeds are screened through buoyancy, the soaked and disinfected seeds fall onto a rotatable material uniformizing plate, the seeds are evenly distributed in a placement cavity with the height capable of being changed, the material uniformizing plate in the horizontal state is pushed into a square plate, the square plate is wrapped by two pieces of flat cloth towels, and the seeds are evenly distributed in the placement cavity. And the connection work among the seed germination accelerating steps is automatically completed.
Owner:PINGYIN COUNTY ENVIRONMENTAL SANITATION & GREENING MANAGEMENT CENT
Solid waste resourceful treatment method for intelligent environmental protection
The invention relates to the technical field of waste treatment, and particularly discloses an intelligent and environment-friendly solid waste resourceful treatment method which comprises the following steps: feeding mixed solid waste into a magnet crushing device for vibrating and crushing, and in the crushing process, acquiring material crushing state images at a first time point and a second time point by using a high-speed camera; meanwhile, an electromagnet working current signal between two time points is collected through a current sensor, and then a deep learning algorithm is introduced to extract material crushing state change characteristics from the material crushing state images at the two time points; and intelligent adjustment of the crushing force is realized on the basis of a nonlinear interaction response relationship between a working current time sequence fluctuation mode of the electromagnet and the change of a material crushing state. And after crushing is completed, generated gas, liquid and solid waste particles are classified, treated and recycled. In this way, the dynamic change of the solid waste in the crushing process can be mastered in time, and the crushing force can be rapidly adjusted to optimize the crushing effect.
Owner:郑州洁普智能环保技术有限公司
Raw material cleaning equipment for can processing
PendingCN120788243AClimate change adaptationFood treatmentAgricultural engineeringElectric machinery
The invention relates to the technical field of tank body processing equipment, and discloses raw material cleaning equipment for can processing, which comprises a support frame, a cleaning bin is arranged on the support frame, a feeding port and a water adding port are formed in the top of the cleaning bin, and a discharging port is formed in the bottom of the cleaning bin; the cleaning bin is internally provided with a cleaning paddle driven by a motor, the side part of the cleaning bin is provided with a scum discharge channel, the scum discharge channel is communicated and connected with a scum discharge pipe, and the scum discharge channel and the discharge port are respectively provided with a valve; the discharge outlet is connected with a material conveying mechanism; according to the bean raw material cleaning device, efficient cleaning of bean raw materials and automatic removal of light impurities can be achieved, the defect of manual fishing is avoided, and the automation degree and the production efficiency of a production line are improved.
Owner:HENAN TIANZHONG YILONG FOOD CO LTD