Melting Furnace Centrifugal Fan For Metallurgical Industry

A smelting furnace is a key piece of equipment used to melt metal ingots and scrap metal, add alloying components, and then, through operations like slagging and refining, smelt the desired alloy.

The Role of Centrifugal Fans in a Smelting Furnace System:

1. Combustion Support and Combustion Efficiency Improvement
1. Oxygen Supply
By delivering oxygen-enriched air into the smelting furnace, a combustion-supporting centrifugal fan significantly increases combustion speed and temperature, ensuring complete fuel combustion and improving thermal efficiency.
2. Combustion Stability Control
Air volume must be precisely matched to furnace requirements: Excessive air volume can extinguish the flame, while insufficient air volume results in incomplete combustion and increased energy consumption.

2. Fume Exhaust and Environmental Protection
1. High-Temperature Flue Gas Emissions
Fume exhaust centrifugal fans use negative pressure to extract high-temperature flue gases (including harmful gases such as SO₂ and FH₂) generated during the smelting process, maintaining furnace cleanliness and extending equipment life.
2. Dust Treatment
In processes such as aluminum casting, dust removal centrifugal fans effectively recover dust, reducing environmental pollution and meeting environmental requirements.

III. System Stability and Energy Saving
1. Heat Recovery
Some centrifugal fans can recover waste heat from exhaust gases for preheating raw materials or drying pulverized coal, reducing energy consumption.
2. Negative Pressure Maintenance
Precisely controlling air pressure ensures stable air circulation, prevents high-temperature flue gas from escaping, and ensures production safety.

Special Applications
Cupola smelting: Centrifugal fans must overcome high resistance to deliver air, ensuring the required air pressure and flow rate for bottom coke combustion.
Vacuum smelting: Some centrifugal fans are used to maintain an inert atmosphere to prevent metal oxidation.