4480results about "Wet separation" patented technology

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.

The invention relates to the field of polytetrafluoroethylene particle recovery, in particular to a polytetrafluoroethylene particle recovery device. A treatment box is installed on the upper portion of a machine body, the interior of the treatment box is connected with a discharging pipe through a guide channel, the discharging pipe is installed in the treatment box arranged on one side of the machine body, and a guide slope is arranged at the bottom end of the treatment box; a partition plate and a separation screen are installed on one side of the upper portion of the guide slope, a recycling roller mechanism is arranged on one side of the upper portion of the separation screen, and a discharging port is formed in the position, away from the lower portion of the separation screen, of the lower portion of the separation screen. According to the polytetrafluoroethylene particle cleaning device, polytetrafluoroethylene particles enter the treatment box to be cleaned after being primarily processed and crushed, waste particles are screened through a separation screen and an air nozzle during cleaning, the particles float to the top and are fished and recycled through a recycling roller mechanism, and a multi-stage screen and a spiral conveying mechanism are arranged in the recycling roller mechanism; particles can be effectively classified, screened and conveyed, the recycling effect of the material particles is guaranteed, impurity doping can be avoided, and the production quality is improved.

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.

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.

The invention discloses a desliming device for mining and beneficiation operation, and relates to the technical field of mineral engineering, in particular to a desliming device for mining and beneficiation operation, which comprises a main machine body, a U-shaped groove is attached and connected to the top of the main machine body, and a flow dividing box is arranged at one end of the main machine body; and a hydrocyclone is arranged between the main machine body and the flow dividing box. According to the desliming device for mining and beneficiation operation, fine separation of minerals with different densities and particle sizes is achieved through stirring of the U-shaped groove, screening of the sieve plate, separation of the hydrocyclone and extrusion of the mesh belt, the desliming quality is improved, finally, final solid-liquid separation is achieved through relative movement and extrusion of the upper mesh belt and the lower mesh belt, and the desliming efficiency is improved. By means of the device, it is ensured that substances in different phase states are separated and treated according to an expected mode, the convenience and the environmental protection property of subsequent treatment are improved, the problem that silt is difficult to clean in traditional equipment is solved through the convenient cleaning mode of all the parts, and the fault risk and secondary pollution caused by silt residues of the equipment are reduced.

The present invention relates to an apparatus and a method for separation of graphite and black mass from spent lithium-ion batteries. The present invention provides an economical, clean and green method for separation of graphite and black mass from spent lithium-ion batteries by simple physical operations such as wet sieving and washing with water followed by mechanical processes such as density separation, sonication and magnetic separation without generating any effluent.

The invention relates to the technical field of coal dressing, and provides a dechlorination jigging device and process for coal dressing, and the dechlorination jigging device and process comprises the following steps: S1, pretreatment: immersing high-chlorine raw coal in water for conveying; s2, jigging separation: the raw coal is subjected to jigging separation, in a frequency period, the rest period accounts for 30%-50% of the whole frequency period, and coal products and gangue are obtained after separation; s3, conveying and dehydration: spraying water is added when the coal product subjected to jigging separation is conveyed, after spraying is completed, the coal product is dehydrated, dechlorination of the coal product is completed, and a dechlorinated coal product is obtained; and S4, desulfurization: carrying out desulfurization treatment on the dechlorinated coal product to obtain a final refined product. By means of the technical scheme, the problem that chlorine elements in raw coal are inconvenient to efficiently remove through a coal dressing process in the prior art is solved.

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.

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.

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.

The utility model discloses a construction waste recycled aggregate washing purification device, and relates to the technical field of recycled aggregates. The side part of the water tank is provided with a hoisting assembly and an overflow box, the hoisting assembly is provided with a cleaning assembly positioned in the water tank, the bottom of the overflow box is connected with a water pump, and a return pipe is connected between the output end of the water pump and the side part of the water tank; a filter plate is placed in the overflow box, two hanging pieces corresponding to the overflow box are arranged on the upper side of the filter plate, an overflow groove is formed in the side portion of the water containing box and located between the two hanging pieces, and the cleaning assembly and the filter plate are located below the overflow groove. The overflow box, the filter plate and the overflow tank are matched, light and floating garbage can be conveniently collected in a centralized mode, the influence on passing ability of large and small garbage is reduced, the filter plate can be conveniently lifted out or positioned through the hanging piece, and therefore the filtered garbage can be conveniently removed.

The invention belongs to the technical field of rare earth element separation, and particularly relates to a fluidization, separation and enrichment method for rare earth element carrier ore of mine solid waste. Comprising the following steps that a mixture of pulverized coal and ferrosilicon powder serves as a separation medium and is added into a vibration gas-solid separation fluidized bed device, and the vibration frequency, the amplitude parameter and the gas speed of pulse airflow of the vibration gas-solid separation fluidized bed device are set according to the density of mine solid waste rare earth element carrier minerals, the separation granularity and the content of rare earth elements; the mine solid waste rare earth element carrier minerals form a scattered fluidization environment with uniform and stable density under the vibration-airflow synergistic effect of the vibration gas-solid separation fluidized bed, density gradient layering is carried out, and separation and pre-enrichment of rare earth elements in the mine solid waste rare earth element carrier minerals are achieved. According to the method, high-density coal gangue containing high rare earth elements is efficiently and accurately sorted, and the problem of pre-enrichment of the rare earth elements in mine solid waste rare earth element carrier minerals is effectively solved.

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.

The invention discloses a mineral separation magnetic separator for muddy tungsten polymetallic ore and a recovery system for recovering black tungsten, and relates to the technical field of mineral separation of the muddy tungsten polymetallic ore. The blending box is used for blending raw material ore pulp with the concentration of 30%; the bottom of the blending box is transmitted to the permanent magnet separator through a transmission pump connecting pipeline, and a return pipeline I and a circulating pump I are mounted on the permanent magnet separator; magnetically separating the raw ore pulp by a permanent magnetic separator to obtain weak magnetic concentrate pulp; the bottom of the permanent magnetic separator is provided with a transmission pipeline and connected with the high-intensity magnetic separator, and the transmission pipeline is connected with a transmission pump; the concentrate thickener is used for blending and concentrating to obtain concentrated ore pulp with the concentration of 25-35%; a centrifugal concentrator; a return pipeline II and a circulating pump II are arranged on the centrifugal separator, and the number of cycles is three; and the frequencies of the centrifugal separator are respectively 50HZ, 40HZ and 30HZ. The technical problems that argillization tungsten ore cannot be recycled, and materials with proper tungsten concentration cannot be selected through magnetic separation and gravity separation, and the recycling difficulty is large are solved.

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.

The invention relates to a coarse particle fluidized bed column separation kinetic analysis device and method, belongs to the technical field of mineral processing and resource recovery, and solves the problem that fluidized bed column separation kinetic analysis is difficult to systematically develop. The device comprises a fluidized bed column, a filling medium, a slurry supply unit, a water supply unit and a gas supply unit, the fluidized bed column comprises a barrel body, the filling medium is arranged in the barrel body, the volume of the filling medium is reduced from bottom to top in a layered mode, the slurry supply unit comprises a slurry mixing barrel and a first conveying pipeline, and the first conveying pipeline is communicated with the slurry mixing barrel and the top of the barrel body; and the water supply unit is communicated with the air supply unit and then communicated with the lower part of the barrel body. According to the invention, the multi-element and multi-scale filling medium is adopted to disperse fluid and assist fluidization, and is limited between the two screens, so that the use amount of clear water and materials is reduced, a fluidized bed column separation dynamic test is optimized from the aspect of structure, the follow-up wastewater treatment amount of coarse grain mineral fluidized bed column separation of an actual separation plant is reduced, and the production cost is reduced. And the production cost of a selection plant is saved.

The invention discloses a comprehensive utilization process for kaolin tailings. The comprehensive utilization process comprises the following steps: scrubbing the kaolin tailings; the scrubbed kaolin slurry is sieved by a 5mm linear sieve, waste rocks of + 5mm are used as sand-gravel materials, and the waste rocks of-5mm are classified into 2-5mm, 0.1-2mm and-0.1 mm; the method comprises the following steps: grinding and grading ore with the particle size of 2-5mm, returning and regrinding the ore with the particle size of + 0.6 mm, removing tail mud with the particle size of-0.045 mm by grading the ore with the particle size of-0.6 mm, carrying out magnetic separation on the ore with the particle size of 0.045-0.6 mm, carrying out 1-2 sections of strong magnetic separation on the obtained magnetic separation concentrate to obtain strong magnetic concentrate, heating, adding chemicals, scrubbing, and carrying out chemical removal, desliming and washing to obtain primary photovoltaic glass sand and graded fine sand; the method comprises the following steps of: grinding and screening the ore with the particle size of 0.1-2mm, grinding and screening the ore with the particle size of + 0.6 mm until the ore with the particle size of-0.6 mm is completely ground, carrying out spiral chute reselection on the ore with the particle size of-0.6 mm to obtain heavy ore and light ore, carrying out 2-3 sections of magnetic separation on the light ore to obtain magnetic concentrate, carrying out flotation to obtain mica, carrying out graded desliming on the product in a flotation tank, and carrying out graded fine sand with the particle size of-0.1 mm; carrying out heating, chemical adding and scrubbing at the particle size of 0.1-0.6 mm, and then carrying out chemical removal, desliming and washing to obtain secondary photovoltaic glass sand; the yield of the obtained product is higher, and the product index is better.

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.

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.

A method for controlling a data center, comprising a plurality of server systems, each associated with a cooling system and a thermal constraint, comprising: a concurrent physical condition of a first server system; predicting a future physical condition based on a set of future states of the first server system; dynamically controlling the cooling system in response to at least the input and the predicted future physical condition, to selectively cool the first server system sufficient to meet the predetermined thermal constraint; and controlling an allocation of tasks between the plurality of server systems to selectively load the first server system within the predetermined thermal constraint and selectively idle a second server system, wherein the idle second server system can be recruited to accept tasks when allocated to it, and wherein the cooling system associated with the idle second server system is selectively operated in a low power consumption state.

The invention relates to energy-saving mine separation equipment which comprises a separation system body, the separation system body comprises a material feeding module, a separation module, a detection module and an adjusting module, particles with different densities are rapidly layered through centrifugal force generated by high-speed rotation, and the separation efficiency is improved; sorting parameters such as the rotating speed, the feeding amount and the bubble size are dynamically adjusted through the automatic adjusting module, intelligent operation is achieved, energy consumption is reduced, the spiral plates and the hollow shaft which are designed to be of a hollow structure are adopted, the weight is reduced, the stability of equipment under high-speed running is improved, the distance between the spiral plates is accurately controlled through the adjusting motor, and the efficiency is improved. And in addition, the equipment further has good adaptability, sorting conditions can be flexibly adjusted according to the characteristics of different mineral aggregates, maintenance is convenient, the service life of the equipment is prolonged, the maintenance cost is reduced, and high efficiency, energy conservation and automatic control in the sorting process are ensured through the overall design.

The utility model discloses a sawtooth wave jigger which comprises a rack, an ore dressing groove, a conical hopper, a cam mechanism and a sieve plate, the sieve plate is formed by splicing a plurality of groups of sieve net assemblies, each sieve net assembly comprises a sieve bearing frame, a sieve net and a sieve pressing frame, a fixed steel ring is arranged on the inner wall of the ore dressing groove in a protruding mode, and the sieve bearing frame is detachably connected to the fixed steel ring. The screen is pressed and installed on the screen bearing frame through the screen pressing frame, a positioning groove is formed in the side edge of the screen bearing frame, and a positioning protruding strip is arranged on the other side edge, opposite to the positioning groove, of the screen bearing frame. The screen plate is formed by splicing the multiple sets of screen assemblies, after abrasion and damage occur, the corresponding screen assemblies can be replaced, the whole screen plate does not need to be replaced, operation is easy and convenient, time and labor are saved, the taken-out screen assemblies can be independently replaced with screens to be reused, and the use cost is effectively saved; when the two adjacent screen assemblies are spliced, the positioning protruding strips are clamped into the positioning grooves, and the overall stability and reliability of the screen plate can be effectively improved.

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.

The invention provides a novel filtration apparatus for the selective separation of metals from a mixture thereof. The invention also provides a method for the separation and isolation of metals from a sample using electrochemical precipitation.

The invention relates to the technical field of mineral processing, in particular to a Bayan obo tailing ore phase reconstruction and efficient separation method which comprises the following steps: heating raw ore, and introducing hydrogen-based gas for hydrogen-based pre-reduction to obtain a reduction product; adding a modifier into the reduction product, carrying out high-temperature melting modification and heat preservation to obtain molten slag and molten iron, and separating the molten iron to obtain modified slag; cooling the modified slag under the condition of a preset cooling rate, preserving heat, and performing water quenching treatment to obtain a slag sample; and crushing and grinding the slag sample, and carrying out flotation treatment to obtain flotation perovskite containing niobium and rare earth and flotation tailings. A clean and environment-friendly hydrogen group is used as a reducing agent for pre-reduction, and the method has huge environmental benefits. The high-temperature melting state at the last stage of melting modification provides favorable conditions for ore phase reconstruction, and the ore phase reconstruction process does not need to roast or re-melt a treated object, so that high energy consumption caused by secondary heating is avoided, the process is shortened, and the energy consumption is reduced.

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.

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.

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.

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.

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.