May 06, 2021

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:
SiO2≥97.5% 
Al2O3:0.7-0.3% 
Fe2O3:0.4-0.1%  
H2O≤0.5%。
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 www.9silica.com, or contact us directly by +86-18118821087(whatsapp).

Lasted news & technology
Jun 15 2021

The season of continuous spring rain will still have a serious impact on the production of quartz sand.

Jun 10 2021

In the sand washing plant, if we want to produce high-purity quartz sand, we need to choose the right raw materials, so how to determine the raw materials of high-purity quartz sand?

Jun 07 2021

Due to its superior properties, spherical quartz powder is widely used in high-tech fields such as integrated circuit copper clad laminate, epoxy plastic sealant, aerospace, fine chemical industry and daily cosmetics.

Jun 05 2021

Therefore, most of the colored quartz sands we see on the market are artificially dyed.

Jun 03 2021

ICP detection technology is an important support and component of high purity quartz technology, which has not only practical significance but also theoretical significance to promote the development of high purity quartz technology in China

Jun 02 2021

It is necessary to strengthen the mineralogy, petrology and mineralogy of high-purity quartz mineral resources, focus on the process mineralogy characteristics of raw materials, such as chemical composition, useful minerals (quartz), harmful

Jun 01 2021

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.

May 31 2021

The processing technology of high-purity quartz sand mainly includes classification, scrubbing, chemical acid leaching, flotation, gravity separation, magnetic separation, chlorination roasting and microbial leaching.

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