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Application of quartz sand in refractories

Because of its unique physical and chemical properties, quartz sand plays an important role in aviation, aerospace, electronics, machinery and IT industry. Quartz sand has high temperature resistance, low coefficient of thermal expansion, high insulation, corrosion resistance, piezoelectric effect, resonance effect and its unique optical properties.
Refractory material is mainly composed of quartz sand, which is a necessary material for various induction furnace lining used in metal smelting.
silica sand
The main technical indexes of quartz sand as refractory are as follows:
Bulk density: 1.9-2.1g/cm
Liner bulk density: 1.75-1.8g/cm
Fire resistance: A(1500-1700 centigrade)
Fire resistance: H,C(1500-1700 centigrade)
Size: 5.1-0.021mm
Refractory quartz sand is widely used in the lining of induction furnace with frequency, medium frequency, frequency conversion and core for smelting ferrous and non-ferrous metals. The reason why quartz sand can be used as refractory material is that all physical and chemical indexes of quartz sand are very stable below 1750 ℃. Quartz sand filter material is white and a kind of crystal, which is a kind of white spherical crystal under normal condition. High purity quartz sand is mainly used in the raw material and glaze of porcelain, high silica brick, ordinary silica brick and silicon carbide for kiln.
Due to the large demand for refractory materials, the market demand for refractory quartz sand is more and more vigorous. Therefore, it is the needs of many customers to establish a quartz sand washing plant to produce refractory quartz sand, which can obtain good benefits.

For more information about quartz sand purification and sand washing plant equipment, please visit, or contact us directly by +86-18118821087(whatsapp).

Lasted news & technology

The flotation method provided by Sinonine can effectively remove feldspar in quartz sand, which is widely used in quartz sand washing plant and has achieved good results.


Sinonine high purity silica sand washing plant can work 7x24 hours to Meet the needs of customers in large production., +8618118821087


Raw sand go into silica sand washing plant to become high purity sand.


High-purity quartz powder has excellent optical, thermal, chemical stability and radiation resistance, so it has a wide range of applications in electronic industry, optical communications, military and other fields. With the development of electronic industry, optical communication, laser, optics a


sand washing plant for high purity sand


After drying by fluidized bed dryer system, the moisture content of silica sand can be less than 0.5%, and the moisture distribution is very uniform.


Most of the hydraulic graders in sand washing plants adopt the automatic control system, which has achieved good results.


The processing technology of high purity quartz sand washing plant usually includes complex processes such as calcination, water quenching, classification, magnetic separation, flotation, acid leaching, cleaning and chlorination roasting.

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