Maximizing efficiency in ladle preheating
With its powerful OXYGON solution, Linde now offers an effective means of optimizing vessel preheating processes. This technology moves beyond conventional burner designs to harness highly efficient flameless oxyfuel combustion.
The principle of flameless oxyfuel
• During combustion, flue gases are mixed into the combustion reaction zone to dilute the reactants. This distributes the combustion, delays the release of heat and lowers the peak flame temperatures – all of which reduce NOx emissions.
• Mixing flue gases into the flame also disperses energy throughout the entire vessel, ensuring faster, more uniform heating. The dispersed flame contains the same amount of energy but distributes it much more effectively throughout the vessel.
Maximize your efficiencies in ladle preheating with OXYGON.
Our OXYGON preheating system is available in two versions for different vessel sizes and different levels of flexibility. Safety is a top priority at Linde LienHwa, so we make sure that all of our products and solutions comply with the relevant safety standards.
OXYGON 400 for vessels with capacities from 1 to 20 tonnes
For whom?
OXYGON 400 is an oxyfuel system with a nominal power of 400 kW. It is ideal for customers looking for a simple, efficient method of preheating typical foundry vessels with capacities from 1 to 20 tonnes.
Features
• Integrated burner pilot and UV cell
• Leak testing to ensure safety at all times
• Simpler, more compact and lighter installation than air/fuel systems with recuperative/regenerative technologies
• Flowtrains for fuel and oxygen
• Semi-flameless combustion
• Compliance with local safety standards
• Programmable heating curves for drying and reheating
• Based on on/off operation
OXYGON XL for vessels with capacities from 30 to 150 tonnes
For whom?
OXYGON XL is based on the same technology as OXYGON 400, but comes with a more advanced control system as well as a 1.5 MW burner suitable for vessels with capacities from 30 to 150 tonnes.
Features
• Integrated burner pilot and UV cell
• Leak testing to ensure safety at all times
• Simpler, more compact and lighter installation than air/fuel systems with recuperative/regenerative technologies
• Flowtrains for fuel and oxygen
• Compliance with local safety standards
Your benefits with OXYGON.
Ensured and consistent ladle temperature
• Reduced overheating in EAF and BOF, which reduces wear and tear on refractory materials, as well as electrode consumption and electricity
• Reduced additional heating in the ladle furnace
Maximizing refractory lifetime through controlled combustion
• Advanced ratio control minimizes sooty fumes and is suitable for drying modern refractories
• Advanced combustion programmes ensure optimized heating curves
Increased energy efficiency and lower emissions
• Up to 55 percent fuel savings due to removal of nitrogen ballast
• Integration of combustion control system in the process chain to avoid unnecessary heating
• Additional energy savings due to lower tap temperatures in melting or metal treatment process
• Reduced NOx emissions and fuel-based SOx and CO₂ emissions
Reduced number of ladles in operation
• Shorter preheating times enable the same output with fewer ladles
• Reference projects have proven that OXYGON helps to reduce the ladle reheating time from 90 min to 40 min, enabling the number of ladles to be cut from five to four.
