High Alumina Castable High-Performance Wear Resistant 75%-95% Al2O3 For Rotary Kiln Lining CFB Boiler Industry Kiln
High Alumina Castable is an advanced refractory material engineered by mixing high-quality raw materials including bauxite, Mullite, andalusite, or Corundum as the primary aggregates. These are combined with finely ground additives such as Silica Powder and α-alumina powder to enhance density and thermal properties. Refractory cement acts as the key binder, ensuring cohesion and strength, while specialized chemical additives are incorporated to optimize performance parameters like workability, setting time, and resistance to thermal shock. The formulation is highly customizable and is frequently adjusted according to specific industrial applications—whether for ladles, furnaces, kilns, or incinerators—to meet varying operational demands.
In comparison to conventional dense castables, High Alumina Castable exhibits superior performance in extreme conditions. It is designed to withstand significantly higher operating temperatures, often exceeding 1600°C, while maintaining excellent structural integrity. Moreover, it demonstrates markedly higher Cold Crushing Strength (CCS), resulting in improved durability, longer service life, and enhanced resistance to mechanical wear and abrasion. These characteristics make it the material of choice for critical high-temperature zones across steel, cement, and petrochemical industries, where both thermal and mechanical stresses are severe. Its adaptability and robust performance ensure reliability in the most demanding thermal environments.
|
Item
|
LDSHA75
|
LDSHA80
|
LDSHA85
|
LDSHA95
|
|
Service Temp ℃
|
1600
|
1650
|
1700
|
1750
|
|
Bulk Density (g/cm3)
(Dried at 110℃)
|
2.5
|
2.6
|
2.7
|
3.0
|
|
CCS 110℃
(Mpa) 1100℃
1500 ℃
|
65
55
80
|
70
60
85
|
90
80
100
|
95
85
110
|
|
MOR 110℃
(Mpa) 1100℃
1500℃
|
10
9
11
|
11
9
12
|
12
10
13
|
13
12
15
|
|
Max Grain Size (mm)
|
6
|
6
|
6
|
6
|
|
Chemical Analysis(%)
Al2O3
Fe2O3
|
75
2.5
|
80
2.0
|
85
1.8
|
95
1.2
|
|
Application Guidelines
Mixer
Placement
Water/Mixer Temp℃
Mixing Time(Min):Dry/Wet
|
P
V/T
20±5
2/5
|
P
V/T
20±5
2/5
|
P
V/T
20±5
2/5
|
P
V/T
20±5
2/5
|
|
Water % (Typical)
|
7-9
|
7-9
|
6-8
|
6-7
|
Advantages:
1.High refractory temperature and high load softening temperature
2.High density, low porosity.
3.High cold crushing strength and mechanical strength
4.Exceptional High-Temperature Stability: Formulated to maintain structural integrity and strength under continuous exposure to ultra-high temperatures.
5.Improved Corrosion Resistance: Offers better defense against chemical attack from slags and fluxes in aggressive melting and processing environments.
Applications:
1.Non-Ferrous Metal Processing: Aluminum holding & melting furnaces, copper refining vessels.
2.Aluminum smelting furnaces
3.Steelmaking industry, including ladles, tundishes and induction furnaces
4.Waste & Biomass Incineration: Primary chambers, slagging zones, and cyclone areas.
5.Petrochemical: High-temperature reformers and cracking units.
Product Tags:
|
|
Wear Resistant High Alumina Castable 75% - 95% Al2O3 For Rotary Kiln Lining CFB Boiler Images
|
