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Industry > OTHERS |
The benefits of ceramic cups
1. No pollution
The ceramic cup is completely harmless, it will not be like a metal cup, and there is the possibility of ingesting harmful metals in long-term use.
2. Anti-corrosion and anti-erosion
Due to the existence of the ceramic cup, the molten iron is not in direct contact with the carbon bricks, which relieves the infiltration, erosion, and erosion of the molten iron and alkaline substances on the carbon bricks from the structural design, and the mullite and brown corundum used are all Advanced ceramic material with low thermal conductivity, high resistance to erosion and erosion. Eliminate the embrittlement layer of large carbon bricks.
3. Energy saving
Increased molten iron temperature and reduced heat loss: The ceramic cup is composed of a material with lower thermal conductivity than carbon bricks, which acts as an interlayer, thereby reducing heat loss through the furnace bottom and hearth. Correspondingly, the molten iron can be maintained at a relatively high temperature, which creates good energy-saving conditions for the production of the converter in the next step.
4. Easy to rewind operation
Due to the thermal insulation effect of the ceramic cup, the heat loss is reduced during the blast furnace shutdown period, which is conducive to the restoration of normal operation during rewinding.
5. Prevent molten iron leakage
Since the 1150°C isotherm, that is, the solidification line of molten iron, is close to the inner surface of the furnace lining, it is migrated to the inner surface, and the brick joints are narrowed due to the slightly positive residual expansion of the refractory material, so the penetration of molten iron is limited. The risk of hearth burn-through is minimized.