Pearlescent Sand: For perforated expanded perlite, generally used50Objective—70Goals and70Objective—90Purpose: Derived from the expansion of raw sand. Diatomite is a super-low-temperature, high-strength engineering expanded perlite, used as a deep refrigeration insulation material for low-temperature medium transmission pipelines, low-temperature medium storage cabinets, and other insulation and thermal insulation layers; it can also be used for equipment foundation insulation, such as cold boxes for oxygen production and other air separation purification equipment, ultra-low-temperature storage cabinets for natural liquefied gas transport vehicles and ships, etc.
Pearlescent sand (expanded perlite) is produced by粉碎, drying, and sieving perlite to a certain specification, followed by high-temperature roasting, resulting in white, spherical, loose granules. It is non-toxic, odorless, non-flammable, and non-corrosive. Due to its low thermal conductivity, reliable chemical stability, good filling fluidity, and low bulk density, it is widely used in industries such as industry, agriculture, national defense, environmental protection, chemicals, food, and construction.
Pearlescent sand is a super-low-temperature ultra-high-strength engineering-grade expanded perlite. As a deep cryogenic insulation material, it is used for insulation layers in low-temperature medium transmission pipelines and storage containers. It can also be used for equipment foundation insulation, such as cold boxes for oxygen production and air separation purification equipment, as well as ultra-low-temperature storage cabinets for natural liquefied gas transport vehicles and ships, and in other comprehensive engineering projects. It possesses performance that cannot be replaced by other insulation materials.
Our company has successfully developed an expanded perlite material in collaboration with domestic research institutions, designed for ultra-low temperature thermal engineering, particularly for insulation and heat preservation of air deep chilling separation and purification equipment. This material boasts significant features such as high strength, lightweight, uniform particle size, excellent thermal insulation properties, high purity, and low water absorption rate. Its thermal conductivity index under ultra-low temperature conditions surpasses that of similar products domestically and internationally, making it a substitute for imported products. Customers can specify particular product technical requirements based on their needs.
