Copper Cooling stave
For ESR copper mould tubes, it could be supplied as welded or forged.The material:1. TP2 also known as M1φ,CU-DHP or SF-CU DIN 1787, is for welded type2. T2 also known as M1, ASTM C11000 or DIN E-CU58
Cooling Role of Copper Cooling Jackets in Metallurgical Furnaces or Blast Furnaces
The cooling role of copper cooling jackets in metallurgical furnaces or blast furnaces is primarily reflected in the following aspects:
1. Efficient Heat Transfer and Heat Dissipation
Rapid Heat Conduction:
Leveraging copper’s high thermal conductivity, copper cooling jackets swiftly transfer internal furnace heat to circulating coolant, reducing the furnace body temperature.
Their surface-cooling structure (e.g., copper cooling walls) prevents direct high-temperature heat flow from impacting the furnace shell, dissipating heat via coolant circulation.
Thermal Balance Maintenance:
During blast furnace operations, copper cooling jackets stabilize heat dissipation, control temperature fluctuations in the furnace body, and prevent equipment damage caused by overheating.
2. Protecting Refractory Materials and Extending Service Life
Physical and Chemical Protection:
Installed between the furnace lining and shell, copper cooling jackets directly withstand high temperatures, mechanical erosion, and chemical corrosion, reducing wear on refractory materials.
By lowering the operating temperature of refractories, they delay thermal melting and spalling, increasing refractory lifespan by over 30%.
Mitigating Thermal Stress Damage:
Copper’s strong resistance to thermal stress minimizes the risk of furnace lining cracks caused by rapid temperature changes, ensuring continuous and efficient furnace operation.
3. Replacing Refractory Materials and Optimizing Structure
Simplified Furnace Design:
Copper cooling jackets can partially replace traditional refractories, reducing furnace wall thickness while enabling active heat dissipation through coolant circulation.
For example, using copper cooling walls in blast furnace shafts reduces slag crust detachment frequency and enhances stability in the furnace belly area.
4. Practical Challenges and Maintenance
Key Maintenance Considerations:
Thermal load fluctuations and slag crust thickness must be controlled to avoid coolant channel damage in copper cooling jackets.
Increasing coolant flow rate, velocity, and auxiliary external water spray cooling can improve long-term stability.