Refractory Bed Materials

Refractory Bed Material

THECNICAL SPECIFICATION
CHEMICAL PROPERTIES
Alumina as Al₂O₃	28-32% Min.
Silica as SiO₂	60-65% Max.
Alkalis (Na₂O + K₂O	Less than 1%
Iron as Fe₂O₃	Less than 2%
PHYSICAL PROPERTIES
Shape	Sub-angilar to Rounded
Hardness	6.8 to 7.2 MOHS
Nature	Dry
Initial Deformation Temprature (IDT)	Greater than 1300°C
FOR AFBC BOILERS
Particle Size	0.85 to 2.36 mm, 0.85 to 2.00 mm
Bulk Density	1050 to 1100 Kg/m³
FOR CFBC BOILERS
Particle Size	0.15 to 0.85 mm, 0.25 to 0.50 mm
Bulk Density	1100 to 1150 Kg/m³