What are the applications of pearlescent sand in pressure vessels?
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What are the applications of pearlescent sand in pressure vessels? What are the components of pearlescent sand?
Insulation material, composition: SiO2 (72%), TiO2 (0.09%), AlO3 (12.31%), Fe2O3 (0.54%), MnO (0.06%), MgO (0.14%), CaO (1.00%).
Pearlescent sand? This is likely to be used more in low-temperature applications, such as cryogenic chambers and low-temperature storage tanks; it seems to be used less in other areas.
This is what is used to fill low-temperature storage tanks, to provide insulation and keep them cold.
Surprising materials, typically used in low-temperature containers
This post was last edited by zjq1962 on 2018-1-31 at 14:26. The following information comes from 360 Baike: Glitter sand (expansive perlite for ultra-low temperature and high-strength engineering applications) is a product obtained by heating finely selected small particles of mineral sand in a vertical kiln using natural gas as a heat source, resulting in expansion. The enhanced version of this product features an organic silicon coating applied to its surface, thereby creating a water-repellent structure. The color, bulk density, and specifications of the product are similar to those of ordinary expanded perlite. This product is primarily used for the insulation layer construction in large-scale ultra-low temperature thermal engineering applications, such as oxygen production air separation units, as well as vehicles and ships used for the cryogenic transport of natural gas, liquid hydrogen, liquid nitrogen, and liquid oxygen. This product has excellent ultra-low temperature insulation performance. Chemical composition: SiO2: 72(%) TiO2: 0.09(%) AlO3: 12.31(%) Fe2O3: 0.54(%) MnO: 0.06(%) MgO: 0.14(%) CaO: 1.00(%)
It is mainly used for insulating the tank walls. The mineral powder is heated and expanded, then filled and compacted.