Lower operating cost
Reference impact from lower gas consumption and heat recovery.
Natural Gas / LPG Heating
Gas-Fired BA Furnace
A fuel-efficient bright annealing route for plants with stable natural gas or LPG supply and high annual strip output.
Energy Route
Combustion control, insulation and heat recovery define the gas cost per tonne.
AKS gas-fired systems combine accurate air-gas ratio control, high-grade insulation and double-muffle heat recovery so the furnace can reduce fuel use without sacrificing strip surface brightness.
- Suitable for natural gas or LPG heat source.
- Double-muffle heat recovery can reduce energy consumption by about 15%.
- Reference gas consumption: 25-26 m³/t for 201 series and 23-24 m³/t for 304 series under target process conditions.
| Factor | AKS reference | Typical market level |
|---|---|---|
| Gas consumption | 25-27 m³/t | 30+ m³/t |
| Insulation | High-grade insulation material | Variable material quality |
| Cooling result | Lower exit temperature, bright white surface | Higher exit temperature, yellowing risk |
| Stability | High continuous operation target | Medium stability |
Combustion + Atmosphere
Fuel efficiency must still protect the BA/2BA strip surface.
A gas-fired bright annealing furnace must control both combustion and protective atmosphere. AKS treats heating, atmosphere and cooling as one process route.
| Maximum heating temperature | 1100°C reference |
|---|---|
| Heating uniformity | ±2°C reference |
| Furnace atmosphere | Nitrogen, hydrogen, dissociated ammonia or argon |
| Total power | Gas route reference: 350 kW |
Operating Economics
When the line runs year-round, fuel savings become a production advantage.
For high-volume mills, saving 2-5 m³ of gas per tonne can materially affect annual operating cost and delivery competitiveness.
Monthly output uplift
Continuous stable operation supports higher order delivery capacity.
Yield target
Stable surface brightness reduces rework and scrap.
Want to estimate gas-fired furnace payback?
Send current gas use per tonne, monthly output, gas price and strip specifications. AKS can help frame a fuel-saving calculation.