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.
Material Solutions
Monolithic Repair Solutions
| Blast Furnace Area | Materials Solutions | |||
| Upper stack | Refrax 20 SBF Nitride bonded Silicon Carbide Mortar SiC P / Carbofrax 8S |
Carbofrax 8S Silicon Carbide Base Mortar SiC P |
MS2R High Alumina |
MS6 High Alumina Mortar Coral, Mortar, 336 |
| Lower stack | Refrax 20 SBF Nitride bonded Silicon Carbide Mortar SiC P / Carbofrax 8S |
Carbofrax 8S Silicon Carbide Base Mortar SiC P |
MS2R High Alumina Mortar Coral, Mortar AL 100 S or FP, 336 |
Sicanit Al3 Silicon Carbide Base Sialon Bond Improved alkali and oxydation resistance Mortar SiC P / Carbofrax 8S |
| Bosh and Belly | Refrax 20 SBF Nitride bonded Silicon Carbide Mortar SiC P / Carbofrax 8S |
Sicanit Al3 Silicon Carbide Base Sialon Bond Improved alkali and oxydation resistance Mortar Sic P / Carbofrax 8S |
Coranit 3S High Alumina Corundum Sialon bond Low thermal conductivity Mortar 336 |
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| Tuyere belt |
MonoCoral
|
MonoGuard High Alumina Precast no cement big block Increased Iron and Slag resistance, high strength and stability Max. recommended temperature: 1,800 °C Mortar 336 |
Sicanit TB Silicon Carbide Base Sialon Bond Brick assembly Mortar SiC P |
|
| Hearth | Coranit AL High Alumina Corundum Sialon bond Iron/Slag Corrosion resistant, good Abrasion and Alkali Corrosion Resistance Mortar 337 |
Coranit SlagR High Alumina Corundum Sialon bond 3rd generation Improved Mechanical Stability; better Slag & Iron and excellent Abrasion Resisitance Mortar 337 |
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| Ceramic Pad | MS4F High Alumina Iron resistant and stable Mortar Coral, Mortar 336 |
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| 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 |
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