Refractory materials for steam boilers?
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I would like to ask what materials are currently used for boiler insulation and refractory materials? Is perlite used for the insulation layer? Are there still corresponding material standards?
Is there anything clear? Could you provide the information?
Common refractory materials used in boilers: coarse and fine aggregates, refractory cement, refractory bricks； Insulation material: aluminum silicate fiber board (white), rock wool (yellow)
Reinforcing layer: Generally, refractory bricks + lightweight insulating castables + aluminum silicate fiber boards are used. External insulation: Generally, rock wool or aluminum silicate fiber cotton is used
The design follows Appendix B of DLT 5072-2007, Design Code for Insulation Paints in Thermal Power Plants, which lists the properties of commonly used insulation materials
The standard for refractory materials is DL/T 777-2012 Refractory Materials for Boilers in Thermal Power Plants. Both standards are available for free download online; you can search for them and download them yourself