BOILER BED MATERIALS
BOILER BED MATERIALS
Composition with refractory silica sand and other minerals, generally used in FBC & CFBC boilers. Also called as Boiler Sand or Bed Materials or Fire Clay Bed Materials.
Types:
- Refractory Bed Materials
- Packing size- 50 kg in gunny bag.
- Appearance- light yellowish.
Specifications:
|
CHEMICALPROPERTIES |
|
|
Alumina as AI₂O₃
|
28-32% Min
|
|
Silica as SiO₂
|
60-65% Max.
|
|
Alkalis (Na₂O + K₂O)
|
Less than 1.0%
|
|
Iron as Fe₂O₃
|
Less than 2.0% |
|
PHYSICAL PROPERTIES |
|
|
Particle Size
|
2.36mm to 0.85mm /2.00mm 0.85mm
|
|
Bulk Density
|
1050-1100kg/mᵌ
|
|
Shape
|
Sub angular to rounded
|
|
Hardness
|
6.8 to 7.2 MOHS
|
|
Nature
|
Dry
|
|
Initial Deformation Temperature (IDT)
|
>1300֠C |
- River Sand Bed Materials
- Packing size- 45 to 50 kg in once used cement bag.
- Appearance- golden yellow.
|
CHEMICAL PROPERTIES |
|
|
Alumina as AI₂O₃
|
5-7% Min
|
|
Silica as SiO₂
|
80-90% Max.
|
|
Other minerals
|
10-15%
|
|
Iron as Fe₂O₃
|
Less than 2.0% |
|
PHYSICAL PROPERTIES |
|
|
Particle Size
|
2.36mm to 0.85mm /2.00mm 0.85mm
|
|
Bulk Density
|
1150-1250kg/mᵌ
|
|
Shape
|
Sub angular to rounded
|
|
Hardness
|
6.8 to 7.2 MOHS
|
|
Nature
|
Dry
|
|
Initial Deformation Temperature (IDT)
|
>1100֠C |