Refractory Configuration for Aluminum Melting Furnace

As the core equipment in aluminum production, the working environment of the aluminum melting furnace extends far beyond the melting point of molten aluminum (660°C). In actual production, the furnace temperature needs to be maintained between 800°C and 1200°C. Liquid aluminum and its alloying elements possess extremely high permeability and chemical reactivity. This means that a scientifically sound and professionally configured refractory material system plays a crucial role. It directly determines the furnace’s operating efficiency, energy consumption, molten aluminum quality, and overall production costs—a key system in this process.

3 Main Types of Aluminum Melting Furnace

Horizontal Aluminum Melting Furnace

Furnace Type: Cuboid
Features: There are dead corners at the four corners of the furnace chamber, with large metal loss and uneven temperature of molten aluminum.
Temperature: Flue gas discharge temperature is 700-800℃.
Maintenance: Medium repair or major repair is required within 1-2 years. The furnace door and its surrounding areas often need minor repairs, with a high maintenance frequency.

Vertical Aluminum Melting Furnace

Furnace Type: Cylinder
Features: Fast heat transfer in the furnace chamber, uniform temperature of molten aluminum, and high thermal efficiency.
Maintenance: Low daily maintenance workload, low maintenance cost, and long interval between medium repair or major repair.

Regenerative Aluminum Melting Furnace

Furnace Type: Cylinder
Features: A vertical furnace and air system are added, flue gas waste heat is fully recovered, with small heat loss and low energy consumption.
Maintenance: Low daily maintenance workload and long maintenance interval.

Detailed Refractory Configuration for Aluminum Melting Furnace

Here we take a regenerator aluminum melting furnace as an example to introduce its refractory material configuration.