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Quart Sand Grinding Production Line2023-06-15 11:38:59
About Quartz
Quartz is one of the main rock-forming minerals, the main component is SiO 2, colorless and transparent, often containing a small amount of impurities, and become translucent or opaque crystals, hard texture, Mohs hardness is 7.Quartz is a kind of mineral resources with very stable physical and chemical properties, and the crystal belongs to the oxide mineral of the tripartite crystal system. Quartz blocks, also known as silica, are mainly raw materials for the production of quartz sand (also known as silica sand).
About Quartz Sand
Quartz sand is a hard, wear-resistant, chemically stable silicate mineral, its main mineral composition is SiO2. Quartz sand in a variety of colors often milky white, colorless, gray. Hardness is 7, brittle, conchoidal fracture. Grease luster, density of 2.65 g/cm ³, its chemical, thermal and mechanical properties have obvious anisotropy. Insoluble in acid, slightly soluble in KOH solution, melting point 1750℃.Classification of Quartz Sand
Quartz sand according to quality can be divided into ordinary quartz sand, refined quartz sand, high purity quartz sand, molten quartz sand:
1. Ordinary Quartz Sand
SiO2≥90~99%, FeO ≤0.06~0.02%, refractoriness 1750~1800℃. The appearance is partially large particles, with yellow skin cyst on the surface. Grain size range 5~220 mesh, can be produced according to user requirements.
2. Refined Quartz Sand
SiO2≥99~99.5%, Fe2O3≤0.02~0.015%. Select high quality ore for complex processing. Particle size range of 5~480 mesh, can be produced according to user requirements, the appearance of white or crystalline.
3.High Purity Quartz Sand
SiO2≥99.5~99.9%, FeO≤0.005%. It is made of 1~3 grade natural crystal stone and high-quality natural stone, carefully selected and finely processed. The particle size ranges from 1~0.5mm, 0.5~0.1mm, 0.1~0.01mm, 0.01~0.005mm.
4.Molten Quartz Sand
Chemical composition: SiO2:99.9~99.99%. Fe2O3:10PPM~25PPM. Max Li2O content: 1~2PPM. Max Al2O3 content: 20~30PPM. Max K2O content: 20~25PPM. Max Na2O content: 10~20PPM.
The Main Use of Quartz Sand
Quartz is widely used in industry, is one of the important industrial minerals, widely used in glass, casting, ceramics and refractory materials, metallurgy, construction, chemical, plastics, rubber, abrasives and other industries.In recent years, the output of quartz crucible is limited, the reason is the shortage of high purity quartz sand, with the continued expansion of the photovoltaic industry, the demand for quartz crucible is also increasing day by day, under the contradiction of insufficient supply and demand, the production of high purity quartz sand or will become a development prospect.
Quartz crucible is the key consumable in the production of silicon wafer, and its quality has great influence on Czochra silicon wafer. The core of the quality of quartz crucible is the raw material of high purity quartz sand, and each layer of quartz crucible has certain requirements for the quality of quartz sand. High purity quartz sand has great influence on the quality of quartz crucible, which is mainly reflected in the purity, gas-liquid inclusions, particle size distribution, consistency.etc
Quartz crushing and grinding process
Quartz powder is made of pure quartz by crushing, sorting, cleaning, acid treatment, high temperature melting, medium crushing, fine grinding, grading, iron removal and other processes to meet the requirements of the powder. Common quartz powder has 150 mesh, 200 mesh, 325 mesh, 400 mesh, 600 mesh, 1500 mesh, 2000 mesh.The process of quartz sand crushing production line is:Stock bin→ Vibrating feeder → Jaw crusher (Coarse crushing) → cone crusher (secondary processing) → Vibrating screen → Finished product (multi-layer vibrating screen can be separated from finished products of different particle sizes).
The process of quartz sand grinding production line is roughly as follows:
Stock bin→ Vibration feeder → Jaw crusher → bucket elevator → Electromagnetic vibration feeder → quartz grinding mill → Finished powder (different fineness of powder, the selection of powder grinding mill is different).
Products with fineness less than 120 are generally called quartz sand, and products with fineness greater than 120 are called quartz powder (refined quartz sand).
Crusher and Grinding mill recommendation
Jaw crusher
Jaw crusher series have features of big crushing ratio, uniform products size, simple structure, reliable work, easy maintenance and low cost. It is widely used in stone mining, metallurgy industry, building material, highway, railway, water conservancy and chemical industries. Various materials with compression resistance less than 320MPa can be crushed.
Cone crusher
HCS series single cylinder cone crusher with hydraulic-driven system is a kind of new type high efficient crushing equipment which is developed by Clirik engineers through over 20 year's effort of design, manufacture, sale, and after-sale service in crushing industries. It is widely used in primary crushing, secondary crushing, tertiary crushing and fine crushing.
Ultrafine grinding mill
Capacity: 0.5~45t/hMax feeding size: 20 mm
Finished size: 325~3000mesh
Advantages
1.This grinding mill has 40% higher production capacity than other mills.2.The key transmission parts are made of high-quality casting materials, more wear-resistant.
3.Particle size adjustable: 325~3000 mesh.
4.Closed mill, not easy to produce dust, in line with environmental protection needs.
Ultrafine vertical mill
Capacity: 0.2~45 t/hMax feeding size: 30mm
Finished size: 325~3000 mesh
Advantages
1.Ultrafine vertical mill can freely change the fineness of the powder to be processed, from 325 mesh to 3000 mesh.2.Our optimized of ultrafine vertical mill, grinding wheel, flow guide system, internal circulation system, ensure the grinding efficiency of the grinding equipment, compared with the traditional grinding equipment production 10-20%.
3.ultrafine vertical mill grading wheel is made of wear-resistant material, and after heat treatment process, long service life.
The wearing parts of grinding wheels and disks are made of wear-resistant alloys to ensure a long service life under severe wear conditions in the field of barite and talc processing, reducing the replacement cost of wearing parts and minimizing the user's maintenance downtime.
4.Ultrafine vertical mill adopts PLC control and touch screen operation to realize automatic operation of vertical mill production line, and can display and save real-time operation data such as speed, temperature, pressure and pressure difference.
And according to the pressure, pressure difference, current and other data collected at each point, automatic feeding can be realized. Automatic operation simplifies complex vertical mill operation. In addition, it can also realize remote control, remote fault analysis and troubleshooting, data analysis and other functions through Internet connection.