The upper stack is typically the lowest temperature area of the blast furnace, with abrasion via solid burden being the primary mode of wear.
Upper and Lower Stack Products
The SiC 85P (silicate bonded SiC) material offers a cost-effective lining solution for the upper stack, with MS2R and MS6 alumina-based (Al2O3) products also offering viable options.
Si3N4 (Refrax® 20 SBF) and SiAlON (Sicanit® AL3) bonded materials are an ideal choice where there is a likelihood of abrasion via solid burden, alkali and zinc attack, molten iron and slag corrosion, and thermal fluctuations.
Saint-Gobain Performance Ceramics & Refractories’ shotcrete materials are also a suitable option for stack lining: Sialfrax 18 for the lower stack and Alfrax 60 Shot for the middle and upper stack.
Blast Furnace Area Materials Solutions Upper stack Refrax 20 SBF
Nitride bonded Silicon Carbide
Mortar SiC P / Carbofrax 8SCarbofrax 8S
Silicon Carbide Base
Mortar SiC PMS2R
High AluminaMS6
High Alumina
Mortar Coral, Mortar, Alfrax 90 FixTBLower stack Refrax 20 SBF
Nitride bonded Silicon Carbide
Mortar SiC P / Carbofrax 8SCarbofrax 8S
Silicon Carbide Base
Mortar SiC PMS2R
High Alumina
Mortar Coral, Mortar AL 100 S or FP, Alfrax 90 FixTBSicanit Al3
Silicon Carbide Base Sialon Bond
Improved alkali and oxydation resistance
Mortar SiC P / Carbofrax 8SBosh and Belly Refrax 20 SBF
Nitride bonded Silicon Carbide
Mortar SiC P / Carbofrax 8SSicanit Al3
Silicon Carbide Base Sialon Bond
Improved alkali and oxydation resistance
Mortar Sic P / Carbofrax 8SCoranit 3S
High Alumina Corundum Sialon bond
Low thermal conductivity
Mortar Alfrax 90 FixTBTuyere belt MonoCoral
High Alumina
Precast Ultra-Low Cement Corundum Big Block
Mortar Alfrax 90 FixTB
MonoGuard
High Alumina
Precast no cement big block
Increased Iron and Slag resistance, high strength and stability
Max. recommended temperature: 1,800 °C
Mortar Alfrax 90 FixTBSicanit TB
Silicon Carbide Base Sialon Bond
Brick assembly
Mortar SiC PHearth Coranit AL
High Alumina Corundum Sialon bond
Iron/Slag Corrosion resistant, good Abrasion and Alkali Corrosion Resistance
Mortar 337Coranit SlagR
High Alumina Corundum Sialon bond
3rd generation
Improved Mechanical Stability; better Slag & Iron and excellent Abrasion Resisitance
Mortar 337Ceramic Pad MS4F
High Alumina
Iron resistant and stable
Mortar Coral, Mortar Alfrax 90 FixTB
| Shotcrete Solutions | Monolithic Repair Solutions | ||
| Middle/Upper stack | SHOTCRETE | ALFRAX 60 SHOT Low cement 60% Alumina High Strength, Hight abrasion resistance High adhesion, low rebound loss |
|
| Lower stack | SIALFRAX 18 SHOT Sol-gel Alumina - Silicon Carbide - Carbon based High adhesion, low rebound loss High alkali and abrasion resistance |
SIALFRAX 18 SHOT+ Sol-gel Alumina - Silicon Carbide - Carbon based High adhesion, low rebound loss, high alkali resistance Excellent strength and excellent abrasion resistance |
|
| Bosh | SIALFRAX 30 SHOT Sol-gel Alumina - Silicon Carbide - Carbon based High adhesion, low rebond loss, very high akali resistance High abrasion resistance |
SIALFRAX 30 SHOT+ Sol-gel Alumina - Silicon Carbide - Carbon based High adhesion, low rebound loss, very high alkali resistance Excellent strenght and excellent abrasion resistance |
|
Documents
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Brochures & FlyersIronmaking Blast FurnaceCrude steel production begins with the reduction process, whereby iron ore reacts with carbon sources inside the blast furnace. It is imperative that...
PDF | 1.24 MB -
Brochures & FlyersIronmaking Coranit Ceramic CupIronmaking production begins with the reduction process, where the iron ore reacts with the carbon sources (coke) inside the blast furnace.
PDF | 845.39 KB
