Introduction
Anhydrous taphole clay is manufactured from high-quality high-alumina chamotte, silicon carbide and clay as primary materials, incorporating special additives and composite binders. It is designed for large and medium-sized blast furnaces operating under high top pressure and high smelting intensity. The product features easy clay feeding, quick retreat after plugging, and easy drilling with a first-time opening rate exceeding 98%. It forms a protective mushroom-shaped build-up at the taphole that shields the hearth from erosion. Available in two grades—JH-TPN-1 and JH-TPN-2—to match different furnace volumes.
Key Advantages
01
Excellent Slag & Iron Resistance
Resists chemical attack from molten slag and iron with strong erosion resistance, ensuring long taphole service life and stable tapping operations.
02
High Taphole Depth Qualification Rate
Delivers taphole depth qualification rate exceeding 98%, with minimal hole enlargement and extended tapping duration per cast.
03
Easy Drilling & Stable Performance
Enables easy drilling with first-time opening rate above 98%, maintains consistent taphole depth, and ensures smooth, stable iron and slag flow.
Specification
| Item | JH-TPN-1 | JH-TPN-2 | Test Condition |
| Chemical Composition (%): ≥ | Al₂O₃ | 20 | 30 |
| SiC+C | 30 | 30 | |
| Bulk Density (g/cm³): ≥ | 1400℃×3h | 1.65 | 1.8 |
| Cold Crushing Strength (MPa): ≥ | 1400℃×3h | 8 | 15 |
