http://www.epa.gov/nsr/ghgdocs/ironsteel.pdf
Efficient Ladle Preheating
The ladle of the caster needs to be preheated, usually using gas burners. Fuel consumption for preheating the ladle containing liquid steel is estimated at 0.02 GJ/t-steel. Heat losses can occur through lack of lids and through radiation. The losses can be reduced by by installing temperature controls, installing hoods, by improved ladle management to reduce preheating need, and through the use of recuperative burners and oxyfuel burners.
| Development Status | Products |
|---|---|
|
Commercial
|
steel
|
Efficient Ladle Preheating Costs & Benefits
| Parent Process: Casting | |
|---|---|
| Energy Savings Potential |
In a US based facility installation of recuperative heaters reduced fuel consumption for ladle preheating by 28%. This system saves approximately 14 TJ/y of natural gas. |
| CO2 Emission Reduction Potential |
Emissions reduction of 1.1 kg CO2/t-steel is estimated (US EPA, 2010). |
| Costs |
Capital costs of ladle heaters are reported to be $70 000/unit (Worrell et al., 2010. p. 97). |
Efficient Ladle Preheating Publications
Available and Emerging Technologies for Reducing Greenhouse Gas Emissions from the Iron and Steel Industry
Page Number:
9
Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry
The U.S. Environmental Protection Agency’s (EPA) energy guide, Energy Efficiency Improvement and Cost Saving Opportunities for the U.S. Iron and Steel Industry, discusses energy efficiency practices and technologies that can be implemented in iron and steel manufacturing plants. This guide provides current real world examples of iron and steel plants saving energy and reducing cost and carbon dioxide emissions.
http://www.energystar.gov/ia/business/industry/Iron_Steel_Guide.pdf?25eb-abc5
Page Number:
97
Efficient Ladle Preheating Resources
Ladle Preheating Systems up to 300 Ton Capacity
Date:
May
2012
http://www.metalandsteel.com/Products/ladle-pre-heating-systems-up-to-300-ton-ca...