Monolithic refractories for BF
Monolithic refractories for blast furnace body Upper part of stack and throat of blast furnaceFireclay high strength abrasion-resistant castablesApplication Joints between two-layer converse-buckled c
Monolithic refractories for blast furnace body Upper part of stack and throat of blast furnace
Fireclay high strength abrasion-resistant castables
Application
Joints between two-layer converse-buckled cooling stave of stack upper parts and furnace shell, joints between steel bricks
and furnace shell, some pipes for crude coal gas system.
Item | Fireclay high strength abrasion- resistant castables | |
Chemical composition，% | Al2O3 ≧ | 45 |
Refractoriness,℃ | ≧ | 1750 |
Bulk density(110℃×24h), g/cm3 ≧ | 2.1 | |
Modulus of rupture | 110℃×24h ≧ | 4 |
600℃×3h ≧ | 4 | |
1000℃×3h ≧ | 5 | |
Crushing strength MPa | 110℃×24h ≧ | 30 |
600℃×3h ≧ | 35 | |
1000℃×3h ≧ | 40 | |
Permanent linear change after heating, % (1000℃×3h) | ±0.5 | |
Gunning mix for blast furnace
For repairing the BF
Refractories cushion morta
The products are made from alumina-silica materials or silicon carbide as main raw materials, and resin, inorganic binder and cushion material as additives. The products are used to cushion the thermal expansion stress as the filler for alumina silicate based or silicon carbide based refractories body of industrial furnaces, such as blast furnace, hot blast furnace.
Item | RCM50 | RCM70 | |
Chemical composition，% | SiC ≧ | 50 | - |
Al2O3 ≧ | - | 70 | |
Crushing strength，MPa | 110℃×24h ≧ | - | 0.5 |
200℃×6h ≧ | 1.0 | - | |
1000℃×3h ≧ | 0.25 | 0.2 | |
Shrinkage（1000℃），% ≦ | 1.0 | 1.0 | |
Thermal compression rate（1MPa×1000℃），% ≧ | 30 | 15 | |
Application | Fill the dilatation joint of lower part of convvex stage of cooling stae, converse- buckled cooling stave. | Fill the dilatation joints of various lining bricks for BF and HBS | |
Water-free refractories mortar
This product is a kind of mixed refractories powder made from SiC or corundum as main raw materials with small quantity of additives, and composite resin as binder. The product has been successfully used in BF with different volumes .
Self-flowing castables
Fill the gap between furnace throat brick and furnace shell.
SiC ramming mix
Fill the leveling layer of upper parts of cooling stave eave tile, and other
parts of BF.
Monolithic refractories for Lower part of stack, belly and bosh of blast furnace
Water-free injection mix for BF
The product, pumping injection refractories mix, is made from resin as binder, corundum, bauxite and carbon as filler, adding other materials or additives. It is used for filling the gap between cooling stave and furnace shell of BF. The products have been successfully used in BF with different volumes.
Corundum ramming mix
For fill the ring joints of ceramic cup.
Carbon ramming mix
The product, refractories ramming mix, is made from electrode graphite, flake graphite, calcined anthracite and SiC as aggregates, resin, etc. as binders, adding additives, then mixing. The product has been used in large and medium BF
Carbon mortar
Refractories mortar for BF
Filler for cooling stave joints