Dazzle Refractory Boiler Bed Material

We are offering refractory boiler bed material. Our refractory bed material of low ferric high temperature product, is processed from selected super heat duty refractory aggregates of moderate alumina contents and of highly dense texture. This very special bed material of refractory aggregates fired at a temperature of 1400 centigrade has many special characteristics that make it a perfect material for obtaining smooth and perfect fluidization in fluidized bed combustion boilers with high economy of operations.
Special characteristics:
• fully screened material with accurately controlled particle size distribution • free from dust fine & over sized particles • highly resistant material against clinker formation • perfect product for obtaining smooth fluidized action • exceptional chemical purity with low alkali and low iron contents • high i.d.t. (initial deformation temperature) • no free iron particles - passed through iron separators • perfectly controlled particle density and bulk density
bed material specifications for fbc boiler
chemical properties
alumina as al2o3
30% - 40%
silica as sio2
50-60% max.
Alkalies na2o + k2o
less than 1%
iron as fe2o3
less than 2.5%
titanium oxide tio
less than 1%
physical properties
particle density
2.00 gmcc
bulk density
1000-1100 kgm³
initial deformation temperature
> 1300° c
maximum particle size
2.80 mm
minimum particle size
0.85 mm
note : other sizes also available on request