High Strength Alumina Castable Description. Refractory materials that can withstand the friction or scouring of high-temperature solid materials or air flows containing solid powders are called High strength alumina castable. The initial setting time of High Strength Alumina Castable for CFB Boiler is not less than 30min and not more than 240min. High Strength Alumina Castable for CFB Boiler is Availability by RS Manufacturer.

High Strength Alumina Castable Production Process

High Strength Alumina Castable for CFB Boiler is composed of super grade alumina, corundum powder, high alumina powder, and high strength binder. During the operation of CFB boilers, the working temperature is generally 850-1050. The aluminum content of conventional wear-resistant refractory castables is very high, generally above 80%, and the maximum operating temperature is 1500.

High strength alumina castable for circulating fluidized bed boilers in power plants: It is generally formulated with sintered high alumina bauxite and fused corundum, and some are added with black silicon carbide, and the binder is made of high-purity calcium aluminate cement and fine silicon oxide powder.

Alumina suspension roasting furnace: Its physical and chemical performance requirements are similar to the wear-resistant and refractory castables of a circulating fluidized bed boiler, but no silicon carbide is added to the composition.

Wear-resistant and refractory castables for oil refining catalytic cracking devices: use electrofusion or sintered white corundum as aggregates, use high-purity calcium aluminate cement plus reactive alumina as binder, and require Fe2O3 content in the castables to be less than 0.05%.

Castable for the furnace furnace tapping furnace: use fused corundum (brown corundum or sub-white corundum) as aggregate. The powder is made of fused corundum powder, α-AL2O3 fine powder, SiO2 fine powder, Cr2O3 fine powder (or zircon) Fine powder) and pure calcium aluminate cement.

High Strength Alumina Castable Product Performance

Low thermal conductivity, low thermal capacity, and thermal shock resistance;
Strong resistance to slag penetration and good air tightness;
Erosion resistance, wear resistance, erosion resistance, high use temperature, long life, easy and fast construction;
The furnace wall can be demoulded within 4-8 hours after pouring, and has certain hardness. It is especially suitable for wall linings with complex shapes, easy construction and strong integrity of the furnace wall.

High Strength Alumina Castable Applications

It is a kind of hydraulic high-strength refractory castable used in the lining of thermal kiln at high temperature and easy to wear. Mainly used as high-temperature cyclone separator, circulating fluidized bed lining, and the lining of the furnace steel tank. Compared with traditional castables, it can greatly improve the boiler operation time, and is suitable for the top of the fire protection belt, the reflow device and the mixing chamber.

High Alumina Castable RS Manufacturer

Rongsheng High strength alumina castable refractory manufacturer has independent refractory castable production workshops, specializing in the production of refractory castable products for the thermal equipment and the CFB boilers, and our refractory castable products have been used in large-scale bidding projects many times. If you need refractory castable products and the High Strength Alumina Castable for CFB Boiler, please contact us.