What are the application products of quartz sand?

Quartz is one of the most important mineral resources in the silicon age. Quartz is widely used and has unlimited potential. Quartz sand plays an irreplaceable role as the main basic raw material of new energy, new materials, new generation information technology and other emerging industries. Therefore, what products can quartz sand produce as a primary raw material? The following describes the application products of quartz sand.

1、 Industrial silicon — ingenious use of quartz sand grinding mill

Industrial silicon is obtained by smelting in electric arc furnace with quartz sand as raw material and carbonaceous material as reductant. Commonly used reducing agents mainly include charcoal, petroleum coke, coal, etc. They can reduce metal silicon from silica. In the photovoltaic industry, industrial silicon is the main raw material for manufacturing materials such as polysilicon; Industrial silicon is also the main raw material of organic silicon, which is used to produce silane, silicone, silicone oil and other products; In the alloy industry, industrial silicon is mainly used as an additive for non-ferrous alloys. When silicon is added to some non-ferrous metals, it can improve the strength, hardness and wear resistance of the base metal, and sometimes enhance the casting and welding properties of the base metal. Industrial silicon has become the main upstream product of the silicon based new material industry chain and the core raw material of many important sectors of the national economy.

2、 Silicon carbide — ingenious use of quartz sand grinding mill

Silicon carbide is an inorganic non-metallic material that has developed very rapidly in recent years. Because of its excellent characteristics such as high hardness, high temperature bearing capacity, oxidation resistance, wear resistance, high thermal conductivity, small thermal expansion coefficient, and resistance to acid and alkali chemical corrosion, silicon carbide ceramics have broad application prospects in semiconductor, electronics, automobile, atomic energy, environmental protection and energy conservation and other high-tech fields. One of the preparation methods of silicon carbide powder, carbothermal reduction method, is to use coke or kerosene to reduce silicon dioxide in quartz sand in a high temperature electric furnace to prepare silicon carbide ceramic block materials, and then obtain silicon carbide powder with different particle sizes through mechanical crushing, grading and other processes of a mill.

3、 Quartz Crucible — Ingeniously Using Quartz Grinding Mill Machine

Quartz crucible belongs to the subdivided product of quartz glass products, which has the properties of cleanness, homogeneity, high temperature resistance, etc. At present, it is widely used in the production process of refining crystalline silicon in the field of solar energy and semiconductor, and is a consumable in the production process of crystalline silicon. The demand for high-purity quartz sand and quartz sand crucible is expected to grow rapidly thanks to the accelerated expansion of silicon wafer production capacity and the increase of N-type silicon wafer permeability. The production of quartz crucible is to put high-purity quartz sand into a rotary molding mold with any tilt angle, use centrifugal force and molding rod to manually mold, move the crucible shaped rotating device to the electrode rod, then power on the electrode to start the arc and insert it into the shaped powder cavity, at the same time, start the vacuum system to quickly melt it into crucible shaped fused quartz, and take it out after cooling, Namely, the rough production of a quartz crucible is completed.

4、 Photovoltaic super white glass — ingenious use of quartz sand grinding mill

As a new material, ultrawhite glass has broad application prospects in solar photovoltaic industry, high-end cars, high-end buildings, high-end gardening buildings and high-end furniture, etc. due to its high transmittance and crystal clear characteristics. Photovoltaic glass production process: raw materials such as quartz sand and soda ash are melted into liquid glass, and ultra white calendered glass is obtained through calendering, annealing, cutting and other processes. After coating and tempering, the transparency and strength of the original sheet are further improved to become a finished photovoltaic glass.

5、 Glass fiber — ingenious use of quartz sand grinding mill

Glass fiber is a kind of inorganic non-metallic material with excellent performance. It has a wide variety of advantages, such as good insulation, strong heat resistance, good corrosion resistance and high mechanical strength. Glass fiber is made of quartz sand, pyrophyllite, kaolin, limestone and other ores through high-temperature melting, wire drawing, drying, winding and other processes. Its monofilament diameter is several microns to more than 20 microns, equivalent to 1/20-1/5 of a hair. Each bundle of fiber precursor is composed of hundreds or even thousands of monofilaments.

6、 Artificial Quartz Stone — Ingenious Use of Quartz Sand Grinding Mill

Artificial quartz stone is a composite material made of 93%~95% quartz and about 7% unsaturated polyester resin adhesive, pigment, curing initiator and other auxiliary reagents after curing and molding. It is hard, dense in structure, rich in color, wear-resistant, pressure resistant, high temperature resistant, corrosion resistant and impermeable. It is widely used in the market and is the fastest growing variety of artificial stone.

7、 Calcium silicate board — ingenious use of quartz sand grinding mill

Calcium silicate board is an inorganic building board with high strength and stable performance, which is mainly made of siliceous materials, calcareous materials and reinforced fibers through slurry forming, slab compaction and autoclave curing. It has the advantages of fire protection (reaching A1 standard), thermal insulation, anti-corrosion and mothproof, waterproof and moisture-proof, sound insulation, light weight, high strength, green and harmless. It is more energy-saving, environment-friendly, earthquake resistant and impact resistant than traditional panels. It can be widely used in the fields of interior and exterior wall insulation decoration, ceiling, cabin partition, billboard, etc., and has strong design and installation plasticity, time-saving and labor saving. Quartz sand is one of the most important raw materials in calcium silicate products, accounting for 40% of the quality of calcium silicate board raw materials.