4416 results about "Quartz" patented technology

The invention discloses a quartzite surface defect detection method, system and device, and relates to the technical field of image processing, and the method comprises the following steps: fixing a to-be-detected quartzite on a detection platform, and carrying out preprocessing; constructing a double-path polarization imaging light path; polarization parameter optimization is carried out based on the optical anisotropy characteristic of quartz stone, so that a polarization state difference is generated between a defect area and a normal area; under the condition of polarization parameter optimization, synchronously acquiring a first polarization image and a second polarization image through a double-path polarization imaging light path; performing polarization difference calculation on the first polarization image and the second polarization image to generate a polarization difference image; and carrying out contrast enhancement processing on the polarization difference image, identifying a defect area, carrying out defect classification, and outputting a quartz stone surface defect detection result. By optimizing polarization imaging parameter configuration and combining image processing, high-precision detection and intelligent classification of quartz stone surface defects are achieved, and the automation level and reliability of detection are improved.

The invention relates to the technical field of quartz sand detection, in particular to a quartz sand impurity detection method which comprises the following steps: acquiring spectral data of a quartz sand sample, and obtaining spectral line interference degrees of characteristic peaks according to energy distribution conditions of the characteristic peaks of the spectral data; based on the peak shape variation condition of each characteristic peak and the offset condition of each characteristic peak and a matrix characteristic peak, the matrix interference degree of each characteristic peak is obtained, and the interference intensity of each characteristic peak is obtained by combining the anti-interference degree of each characteristic peak so as to optimize the chaos regulation factor when the chaos mapping population is initialized; and finally, combining with an optimization algorithm to obtain a characteristic wave band with minimum interference, and detecting the purity and impurity content of the quartz sand based on the characteristic wave band. The quartz sand impurity detection precision can be improved.

The invention relates to the technical field of quartz product measurement, and particularly provides a quartz product diameter measurer and a quartz product diameter measuring method, and the quartz product diameter measurer comprises a clamping mechanism, a moving table, a supporting guide mechanism and a laser outer diameter measuring mechanism. According to the invention, the clamping mechanism, the laser outer diameter measuring mechanism and the supporting and guiding mechanism cooperate with each other, so that the laser outer diameter measuring mechanism measures the diameter of the quartz rod in the circumferential direction in the process that the clamping mechanism drives the quartz rod to rotate axially; meanwhile, the mobile station drives the laser outer diameter measuring mechanism to move in the axial direction of the quartz rod through the supporting and guiding mechanism to measure the diameter, so that the diameter measurement of the quartz rod in the axial direction and the circumferential measurement of different axial positions are realized, the comprehensiveness of the diameter measurement of the quartz rod is improved, and the measurement result has representativeness; and the precision of diameter measurement of the quartz rod is improved.

The present invention belongs to the technical field of glass preparation, and specifically relates to an ultra-white glass and a preparation method thereof. The ultra-white glass of the present invention is composed of the following raw materials by weight: 110 parts of quartz sand, 18-20 parts of sodium carbonate, 14-16 parts of colemanite, 4.5-5.5 parts of magnesia, 2.6-2.8 parts of calcined alumina, 1.1-1.3 parts of potassium oxide, 0.8-1.0 parts of zinc oxide, 1.5-1.7 parts of phosphorus pentoxide, 0.15-0.20 parts of strontium chloride, 0.3-0.34 parts of calcium fluoride, 0.25-0.27 parts of barium nitrate, and 0.16-0.18 parts of zirconium oxide. The ultra-white glass of the present invention has a synergistic effect between the raw materials to ensure that the prepared ultra-white glass has excellent whiteness and visible light transmittance.

The invention discloses a high-purity quartz sand reinforced chlorination purification method, and belongs to the technical field of inorganic non-metallic material processing. The method comprises the following steps: putting a quartz sand raw material containing crystal structure impurities into a roasting furnace, and synchronously introducing a gas chlorinating agent and a gas reducing agent into the roasting furnace for roasting to obtain purified quartz sand. According to the method, on the basis of conventional chloridizing roasting purification, a gas reducing agent is introduced to regulate and control the reaction atmosphere, efficient dissociation and chlorination of crystal structure impurities difficult to remove are promoted, and deep efficient purification of quartz sand is achieved. The method has the advantages of simple process equipment, high raw material applicability, high impurity removal efficiency and the like, and can be widely applied to production of 4N5-grade and above high-purity quartz sand.

The invention is suitable for the technical field of quartz sand flotation, and particularly relates to a quartz sand flotation froth characteristic and dosage linkage control method which comprises the following steps: acquiring real-time process parameters and real-time image data; benchmark foam feature recognition is carried out based on the first image data, and the stable state and particle load characteristics of the foam under the current working condition can be accurately established; motion feature recognition is conducted on the second image data based on the reference foam features, and the dynamic evolution rule of the foam in the flotation tank can be captured in real time; real-time process parameters, moving foam characteristics and reference foam characteristics are combined to determine process adjustment parameters, and the residual state of chemicals in the system and the deviation condition of the flotation working condition can be quantitatively reflected; and the dosing control quantity is determined according to the process adjustment parameters, so that concentrate quality fluctuation and long-term potential quality hazards caused by excess or insufficiency are avoided, and the risk of secondary pollution is reduced.

The invention provides an early-strength rapid-repair grouting material and a preparation method thereof, and the early-strength rapid-repair grouting material is mainly prepared from the following raw materials: 50 to 150 parts of sulphoaluminate cement, 10 to 150 parts of aluminate cement, 200 to 350 parts of a regenerated gelling powder material, 1200 to 1400 parts of quartz sand, 50 to 100 parts of silica fume, 10 to 150 parts of mineral powder, 10 to 100 parts of fly ash, 15 to 50 parts of a composite retarder, 0.1 to 2 parts of a water reducing agent and 1 to 10 parts of an early strength agent. 0.01 to 1 part of a water-retaining agent and 200 to 300 parts of water. The early-strength quick-repair grouting material is characterized in that activated low-cementitious active mineral solid waste is adopted as a main cementitious material, and the product has excellent construction stability, low-carbon weather resistance, corrosion resistance, micro-expansion quick-hardening early strength and economical efficiency.

The invention belongs to the technical field of quartz sand preparation, and provides a flotation synergistic process for high-purity quartz sand preparation, which comprises the following steps: crushing raw ore to obtain ore pulp, detecting the dispersity of the ore pulp after the concentration is adjusted, acquiring ore pulp state parameter data in real time in the detection process, and performing fluctuation analysis to obtain a flotation result; extracting ore pulp state parameters with fluctuation as pre-analysis risk parameters; and in combination with a historical detection database, identifying whether the pre-analysis risk parameter is associated with the occurrence of pseudo uniformity. A parameter association network is constructed based on Granger causality test, an adjustment sequence is determined by integrating an influence quantity coefficient and an intensity coefficient, influence paths and intensity among parameters are defined, adjustment blindness is reduced, quantitative sorting of optimization strategies is realized, parameters having significant influence on the system are preferentially processed, adjustment efficiency and pertinence are improved, and the method is suitable for large-scale popularization and application. The stability and the control precision of the detection system are guaranteed, the false uniformity risk is effectively reduced, and the accuracy of ore pulp dispersion uniformity detection is ensured.

The invention discloses an electronic device parasitic parameter network analysis method based on point cloud deep learning and a related device, and the method comprises the steps: obtaining physical characteristic data in a laser-induced quartz material process, and the physical characteristic data comprises laser wavelength, pulse width, photon energy and material characteristics; and inputting the physical characteristic data into the trained neural network model, and predicting the damage threshold of the laser-induced quartz material. According to the machine learning method fusing physical information, unification of data efficiency and physical consistency is achieved, prediction precision and model expandability are remarkably improved, and the method is used for accurately predicting the damage threshold value of the quartz material under the specific laser condition, so that the laser processing technology is optimized, and the processing precision and efficiency of the quartz material are improved.

The invention provides a spacecraft quartz powder heat insulation tile which is prepared by adopting high-purity quartz powder (SiO2) as a main raw material and combining a high-temperature-resistant ceramic fiber reinforcement and a nano aerogel heat insulation layer through a high-temperature sintering process. The heat insulation tile has the following advantages: 1, the heat insulation tile has excellent high temperature resistance, and can tolerate 1600 DEG C high temperature for a long time and tolerate 1800 DEG C instantaneous thermal shock for a short time; 2, repeated use: the structure is stable, and high strength is still kept after multiple thermal cycles; light weight: the density is low (less than or equal to 0.5 g / cm < 3 >), and the load of a spacecraft is reduced; and 4, the thermal conductivity is low (less than or equal to 0.05 W / m.K), and heat transfer is effectively isolated. The method is suitable for thermal protection systems (TPS) of spacecrafts, such as thermal insulation of reentry capsules and rocket engine nozzles.

The invention belongs to the technical field of precision measurement, and discloses a heating, excitation and frequency cracking measurement method for a quartz hemispherical harmonic oscillator, which adopts an infrared light source to uniformly heat the quartz hemispherical harmonic oscillator, and performs excitation through a piezoelectric excitation sheet based on a'four-antinode 'vibration mode of the quartz hemispherical harmonic oscillator. The method comprises the following steps: reading a vibration signal through a laser vibration meter, analyzing the direction of a frequency splitting decomposition and stiffness non-uniform axis of the quartz hemispherical harmonic oscillator, performing etching de-weighting through an ion beam, and trimming the stiffness non-uniformity of the quartz hemispherical harmonic oscillator. According to the method, the problem that the circumferential rigidity of the quartz hemispherical resonator is not uniform is solved, and compared with the conventional harmonic oscillator frequency cracking trimming method, the harmonic oscillator frequency cracking is leveled from the rigidity trimming angle, so that the temperature change interference resistance characteristic of the frequency cracking after trimming of the quartz hemispherical resonator gyroscope is improved.

The invention relates to the technical field of crucible defect detection, in particular to a quartz crucible defect detection device based on machine vision, which comprises a quartz crucible, a detection probe and a shading mechanism for bearing the quartz crucible, a crucible wall cleaning mechanism is arranged in the quartz crucible, and a continuous driving mechanism is arranged outside the detection probe; the shading mechanism comprises a plurality of bearing assemblies which are evenly distributed and fixed by the truss, cantilevers movably installed on the bearing assemblies and a shading cover installed at the top ends of the cantilevers. The assembly line type bearing platform is provided for the inverted quartz crucibles, after the uniformly distributed quartz crucibles are adsorbed and fixed by the shading mechanism, the arranged shading cover can be matched with the curtain to provide an external light blocking environment for the quartz crucibles, and the detection probes extending into the inner cavities of the quartz crucibles can operate under the condition of avoiding the interference of light pollution of the surrounding environment; therefore, high-precision detection of cracks on the inner wall of the detection probe under the light blocking effect of the detection probe can be ensured.

The invention is suitable for the technical field of quartz sand purification, and particularly relates to a quartz sand purification acid liquor concentration automatic compensation control method which comprises the following steps: acquiring an acid liquor concentration parameter sequence; wherein the acid liquor concentration parameter sequence is used for indicating the change of the acid liquor concentration from the beginning of purification to the preset purification time, and the acid liquor concentration reflected by the acid liquor concentration parameter sequence is located in an effective concentration interval; performing segmentation processing based on the acid liquor concentration parameter sequence to obtain sub-parameter segments; determining a compensation opportunity based on the sub-parameter segments; wherein the compensation opportunity is used for indicating the opportunity of adding the acid liquor next time; extracting consumption characteristics of each sub-parameter section; obtaining an initial compensation amount based on the plurality of consumption features; an actual compensation amount is determined based on the initial compensation amount and the compensation opportunity. According to the method, the compensation opportunity and the compensation amount can be sectionally determined based on the acid liquor concentration change rule, so that the purification effect of the quartz sand is improved.

The invention discloses a method for preparing synthetic quartz sand by a sol-gel method, which comprises the following steps: mixing silicon alkoxide and an alcohol solvent, and stirring to form a homogeneous solution marked as L1; mixing an acidic catalyst, an alcohol solvent and ultrapure water to form a mixed solution, and recording the mixed solution as L2; dropwise adding the L1 solution into the L2 solution, and continuously stirring and hydrolyzing to obtain sol; dropwise adding ammonia water into the sol until the pH value is 5-10, and standing in a vacuum drying oven to obtain wet gel; and drying and sintering the wet gel to obtain the high-purity synthetic quartz sand. The gelation time is accurately controlled through acid-base two-step catalysis, the production period is shortened, and the production efficiency is improved; meanwhile, the size and uniformity of silicon dioxide particles are controlled by controlling the dripping speed of a silicon source, so that the sintering temperature of the synthesized quartz sand is greatly reduced, and the solvent is recycled through distillation when wet gel is dried, so that the production cost is reduced, and the pollution to the environment is reduced.

The invention discloses a system for mineralizing carbon dioxide by micro-nano bubble reinforced base solid waste and an application method.The system for mineralizing carbon dioxide by micro-nano bubble reinforced base solid waste comprises a micro-nano bubble generation and injection unit, a mineralization reaction unit and a circulating water treatment unit, the micro-nano bubble generation and injection unit comprises a micro-nano bubble generation device, a gas supply pipeline and a water supply pipeline, the mineralization reaction unit comprises a mineralization reactor, and a quartz sand filling layer and a nylon screen are arranged at the bottom of the mineralization reactor. Through the multi-unit integrated coupling design, the micro-nano bubbles are creatively utilized to strengthen the gas-liquid-solid three-phase synergistic reaction process, the column type filling structure and the sectional type reaction mechanism are combined, the carbon dioxide mass transfer efficiency and the mineralization reaction rate are effectively improved, and the system has the advantages of being high in system adaptability, stable in continuous operation, flexible in module deployment and the like; the method is suitable for efficient treatment of alkaline solid waste and carbon dioxide sequestration collaborative scenes, and has good engineering popularization prospects and resource utilization value.

The invention discloses an artificial quartz stone plate fine trimming device, and belongs to the technical field of plate trimming devices, the artificial quartz stone plate fine trimming device comprises a bottom plate, a trimming frame, a moving device, an inner wall mounted on the trimming frame and used for driving an artificial quartz stone plate to move, and a moving frame mounted on the top of the outer wall of the moving device and used for driving the artificial quartz stone plate to move. The rack is used for placing artificial quartz stone plates. According to the artificial quartz stone plate fine trimming device, a centering mechanism is matched with a third forward and reverse motor to drive a third two-way threaded rod to rotate, so that two clamping plates are close to each other on a second guide rod, an artificial quartz stone plate can be accurately fixed to the center position of a moving frame, the position precision of the plate in the trimming process is guaranteed, and the trimming quality is improved; the height of the feeding table is adjusted through the lifting component to be matched with the height of the moving frame, then the plates are pushed to the moving frame from the feeding table through the feeding component, automatic feeding of the plates is achieved, and the machining efficiency is improved.

The invention relates to the technical field of spectrum detection, in particular to a method for detecting the content of trace elements in quartz sand. The method comprises the following steps: acquiring spectral data of a quartz sand solution with gradient change of concentration; in each concentration spectrum, calculating an overlapping index according to the position and peak height difference of a spectrum peak and a previous spectrum peak, and screening abnormal spectrum peaks; analyzing the cross interference of the abnormal spectrum peak and the previous spectrum peak to obtain a distortion representation degree; obtaining the deviation influence degree according to the deviation of the abnormal spectrum peaks influenced by the silicon peaks among different concentrations, obtaining the concentration change interference degree according to the deviation amplitude variation trend of the distortion representation degree in the continuous concentration spectrum data in the ordered concentration, and correcting the spectrum data of the abnormal spectrum peaks to detect the content of the trace elements. According to the method, the spectrum data deviation of the quartz sand under the gradient concentration change is dynamically analyzed and quantified, so that the interference of the silicon element on the trace elements is eliminated, and the accuracy and reliability of the detection result of the content detection of the trace elements in the quartz sand are improved.

The invention discloses a purification method for removing quartz inclusion, which comprises the following steps: calcining a quartz sand raw material at high temperature for a certain time, then taking out and quickly putting into cold water for cold quenching; dehydrating quartz sand, feeding into a microwave reactor, heating to a set temperature, and keeping for a period of time; after the reaction is finished, cleaning the quartz sand with ultrapure water; filling the quartz sand into a high-temperature and high-pressure reactor, introducing supercritical carbon dioxide and hydrogen fluoride mixed gas, and keeping the temperature and the pressure for a period of time; and after the reaction is finished, discharging gas to obtain the high-purity quartz. Through two-stage heat treatment, a channel between gas-liquid inclusions in quartz particles and the outside can be efficiently opened, and meanwhile, the supercritical method ensures that impurities in the inclusions can be effectively dissolved out; the treatment time is short, the required temperature is low, the acid consumption is less than 10%, and the method has the advantages of high efficiency and low cost.

The preparation method of the quartz crucible comprises the following steps that a crucible green body is prepared, the crucible green body comprises a first quartz sand layer and a second quartz sand layer which are sequentially arranged from outside to inside, and the second quartz sand layer comprises quartz sand and barium carbonate; the purity of the quartz sand in the first quartz sand layer is smaller than that of the quartz sand in the second quartz sand layer; the crucible green body is fired, and a crucible body is obtained; a protective coating is sprayed to the inner surface of a crucible body through inert gas, then gradient heating heat treatment is conducted after carbon dioxide gas is introduced, the quartz crucible is obtained, the quartz crucible comprises the crucible body and a protective layer located on the inner surface of the crucible body, and the protective layer comprises barium carbonate, nano silicon dioxide and barium borate. According to the preparation method of the quartz crucible, the binding force between the protective coating and the inner surface of the quartz crucible can be improved, the corrosion resistance of the quartz crucible is improved, and the service life of the quartz crucible is prolonged.

The invention relates to the technical field of glazes, and particularly discloses an antifouling glaze with a snow velvet effect and a preparation method thereof. The glaze comprises the following raw materials in parts by weight: 35-45 parts of quartz stone, 4-6 parts of zinc oxide, 7-8 parts of strontium carbonate, 4-5 parts of barium carbonate, 7-9 parts of calcite, 8-10 parts of talc, 5-8 parts of kaolin, 0.01-0.1 part of titanium dioxide and 1-5 parts of a microcapsule repairing agent. According to the glaze, a large number of fine willemite crystals can be separated out, so that a flickering crystal flower effect is generated, and a glass phase between the crystals is very compact, so that the unification of a visual effect and an antifouling function is realized. Even if the surface is scrubbed to generate scratches, the surface can be recovered through self-repairing, so that the antifouling effect is further improved.

The invention discloses a multi-parameter water quality detection device and method, and the device comprises a collection front end which is made of a quartz material, is integrated with a UV optical module and an electrochemical module, and is used for collecting optical and electrochemical signals of water quality parameters; the temperature probe is used for measuring the environment temperature in real time and outputting a temperature compensation signal; the detection electrode is used for driving and detecting the total dissolved solids through alternating voltage; the UV detection module comprises a UV emission lamp bead and a UV photosensitive lamp bead, is arranged in the collection front end in a correlation manner and is used for detecting the absorbance of the water sample so as to calculate the chemical oxygen demand and the total organic carbon; and the control mainboard is electrically connected with the temperature probe, the detection electrode and the UV detection module, is internally provided with a temperature compensation algorithm, and is used for processing signals and outputting TDS, COD and TOC parameters. According to the invention, UV optics, electrochemistry and temperature compensation technologies are integrated, the limitation of traditional single-parameter detection is broken through, integrated detection of TDS, COD and TOC multiple parameters is realized, and the problem of synchronous measurement of multiple parameters is solved.

The invention relates to the technical field of quartz sand pickling, and discloses a quartz sand pickling device and a method thereof.The quartz sand pickling device comprises a mounting unit, a transmission unit, a limiting rotating unit, a discharging unit and a material changing unit, the mounting unit comprises a mounting shell, a sliding door is arranged on the outer side wall of the mounting shell, and a feeding port is formed in the upper portion of the mounting shell; four supporting legs which are mutually symmetrical in pairs are arranged at the bottom of the mounting shell, and an acid washing liquid placing box is arranged at the bottom of an inner cavity of the mounting shell. According to the quartz sand pickling device, a guide plate vertically moves downwards through a driving assembly, when the guide plate vertically moves downwards, a sealing rod can vertically move downwards, so that quartz sand is discharged and enters an acid pickling liquid containing box arranged below for pickling and cooling, and meanwhile, the driving assembly can further drive a heating box to rotate; and an internal structure of the limiting rotating unit vertically moves downwards, so that the material changing unit can change the placed quartz sand.

The invention discloses opaque quartz glass and a preparation method thereof. The preparation method comprises the steps that an induction heating furnace is used, the atmosphere in the furnace is a protective atmosphere which does not participate in the reaction, and the pressure of the protective atmosphere is 10000-90000 Pa; the quartz sand is placed in an induction heating furnace, the temperature is increased to 1400-1570 DEG C, and the quartz sand is preheated; raising the temperature to 1650-1710 DEG C at the speed of not more than 0.2 DEG C / s, so that the quartz sand is uniformly heated; raising the temperature to 1740-1900 DEG C at the speed of not less than 0.2 DEG C / s, so that the quartz sand reaches the melting temperature and is sintered; and finally, cooling at the speed of not more than 2 DEG C / s to obtain the opaque quartz glass. The density of the opaque quartz glass is 0.9-2.19 g / cm < 3 >, the bubble size is 1-300 [mu] m, the transmittance of the opaque quartz glass at the wave band of 380-3000 nm is less than 20% when the thickness is 2 mm, the transmittance of the opaque quartz glass at the wave band of 380-3000 nm is less than 3% when the thickness is 5 mm, and the hardness is 1000-6900 MPa.

The invention belongs to the technical field of glass, and particularly relates to high-light-transmittance glass and a preparation method of the high-light-transmittance glass. The raw materials comprise the following components in parts by weight: 20 to 30 parts of quartz sand, 15 to 18 parts of sodium carbonate, 8 to 10 parts of limestone, 5 to 7 parts of dolomite, 0.3 to 0.5 part of a clarifying agent, 0.2 to 0.3 part of a coloring inhibitor, 0.1 to 0.2 part of lithium carbonate, 0.05 to 0.1 part of titanium dioxide, 0.1 to 0.3 part of zirconium oxide, 2 to 4 parts of aluminum oxide, 1 to 3 parts of boron oxide, 0.3 to 0.5 part of nano silicon dioxide sol and 1 to 3 parts of a high-temperature-resistant agent; and 1-5 parts of a wear-resistant agent. The quartz sand, the sodium carbonate, the limestone, the dolomite, the clarifying agent, the coloring inhibitor, the lithium carbonate, the titanium dioxide, the zirconium oxide, the aluminum oxide, the boric oxide, the nano silicon dioxide sol, the high-temperature-resistant agent and the wear-resistant agent are used as raw materials, so that the prepared glass is high in light transmittance, and meanwhile, the performance requirements of high strength, low spontaneous explosion rate and the like are met.

The invention provides probe type mineral multi-element laser-induced breakdown spectroscopy detection equipment. The equipment is characterized in that a sealed quartz optical window is mounted on the side surface of a probe box; the laser faces the sealed quartz optical window and emits laser pulses to the detected mineral; the convex surface of the quartz crescent focusing lens faces the laser, the concave surface of the quartz crescent focusing lens faces the sealed quartz optical window, and laser pulses are focused on the surface of detected mineral to generate plasma; the dichroscope is used for reflecting the plasma emission light to the double-lens group; the emitted light is converged through the double-lens group to form a plasma image with weakened chromatic aberration; the spectrograph is coupled with the plasma image through an optical fiber mechanism and records spectrums of different wavebands; therefore, after the focus point of the reflected light of the crescent focusing lens is pushed far to the laser, the optical element is prevented from being damaged; the imaging chromatic aberration of a plasma image is reduced by the double-lens group; the optical fiber mechanism balances spectral intensities of different wavebands and suppresses a continuous spectrum through spatial resolution.

The invention relates to a method for removing impurities in quartz ore through cascade chloridizing roasting, and belongs to the technical field of quartz sand purification. The method comprises the following steps: crushing cleaned natural quartz ore, and carrying out ball milling to obtain quartz ore particles; the quartz ore particles are heated to 400-700 DEG C at a constant speed, HCl gas is introduced, and first-stage roasting is carried out for 2-3 h; heating the quartz ore particles roasted at the first stage to 800-1100 DEG C at a constant speed, introducing Cl2, roasting at the second stage for 2-3 hours, and cooling to room temperature at a constant speed; and adding the quartz ore particles roasted at the second stage into deionized water, stirring at room temperature, carrying out water leaching for 4-8 hours, carrying out solid-liquid separation, and drying to obtain the high-purity quartz particles. According to the method, the quartz ore particles are subjected to two-stage cascade chloridizing roasting, different inclusion impurities in the quartz ore are removed, the removal rates of the final impurities Fe, Al, Na and K can reach 99.92%, 71.52%, 80.19% and 85.79%, and the light transmittance can reach 90% or above.

The invention belongs to the technical field of quartz sand preparation, and discloses high-purity quartz sand and a preparation method thereof. The method comprises the following steps: by taking water, mixed alkali and silicon powder as raw materials, uniformly stirring the silicon powder, the water and an additive to prepare silicon sludge, adding the rest raw materials into a reaction kettle, heating, then adding the silicon sludge into the reaction kettle in a frequency division manner, reacting to obtain a sodium silicate solution, removing anion and cation impurities, then adding an acid solution, heating to obtain silicic acid gel, and drying to obtain the silica gel. The silicic acid gel is subjected to freezing treatment, vacuum microwave drying and chloridizing roasting after unfreezing are conducted, and the high-purity quartz sand is obtained. According to the preparation method, the quartz sand with the purity higher than 99.9999% can be synthesized, the granularity of the quartz sand can be controlled according to the adding proportion of the acid solution, the content of gas-liquid inclusion in the quartz sand is remarkably reduced, and the quality of the quartz sand is improved.

The invention discloses a method for preparing ultra-high-purity quartz by multi-stage synergistic purification of quartz ore, and belongs to the technical field of ultra-high-purity quartz preparation. According to the method, natural quartz ore is used as a raw material, mineral impurities, lattice impurities and inclusions in quartz are deeply removed through multi-stage synergistic processes such as low-temperature plasma activation, biological leaching, supercritical CO2-assisted acid leaching, microwave-assisted chloridizing roasting and pulsed electric field enhanced acid leaching, and finally a high-purity quartz product with the SiO2 purity larger than or equal to 99.998% (4N8 grade) is obtained. According to the invention, a low-temperature plasma activation technology, microbial metallurgy, supercritical fluid extraction and a pulsed electric field strengthening technology are organically combined, so that the energy efficiency bottleneck and environmental protection limitation of a traditional high-purity quartz preparation process are broken through; the obtained quartz sand product can reach the standards of high-purity quartz sand for semiconductor quartz glass and high-purity quartz sand for photovoltaic quartz crucibles.

The invention relates to the technical field of mineral resources, in particular to a field quality evaluation method and system for vein quartz ore for high-purity quartz, and the method comprises the following steps: shooting vein quartz ore by using image acquisition equipment, analyzing image data, identifying and marking impurities on the surface of the ore by identifying color and texture information on the surface of the ore, and evaluating the quality of the vein quartz ore. And generating surface impurity marking information. According to the method, the image data of the vein quartz ore is analyzed, various impurities on the surface of the ore are detected and recognized, edge information recognition is combined, the size of the ore is evaluated, and reflection and refraction data of the ore under various spectrums are analyzed, so that the transparency of the ore is accurately evaluated, the density of the ore is calculated, and the compressive strength is measured; the physical characteristics of the ore are evaluated, the purity index of the ore is calculated according to the relation between various characteristics and purity of the ore, and comprehensive quality evaluation of the vein quartz ore under the field condition is achieved.

The invention relates to the technical field of quartz sand purification, and discloses a quartz sand acid quenching purification device and a using method thereof.The quartz sand acid quenching purification device comprises a shell and supporting legs fixedly connected to the bottom end of the shell, a stirring mechanism is arranged in the shell, a drying mechanism is arranged below the stirring mechanism, and a discharging mechanism is arranged above the stirring mechanism; the stirring mechanism comprises a supporting seat fixedly connected to the top end of the shell, a double-shaft motor is installed at the top end of the supporting seat, a first gear is fixedly connected to the output end of the left side of the double-shaft motor, the first gear is meshed with a second gear, and crushing rollers are fixedly connected to the outer walls of the other ends of the first gear and the second gear; the double-shaft motor can drive the rotating column to rotate, so that the first stirring blade is driven to move up and down, and meanwhile, the first stirring blade is driven to rotate while revolving, so that quartz sand and aqua regia in the partition frame are fully stirred, corrosion is accelerated, and the purification efficiency is improved.