Air Products Home

Ask the Experts Metals

Would it help to add oxygen to my cupola? If so, how should it be added?

Russell Hewertson
Manager of Combustion Technology

Adding oxygen to your hot or cold blast cupolas can provide many benefits, including increased production rates, reduced coke usage, alloy solids injection into the melt zone, coke replacement with natural gas and reduced afterburner loads. The simplest way to add oxygen is to enrich the blast air. Since the oxygen isn’t targeted to a particular zone, however, the benefits are typically suboptimal. Oxygen lances (subsonic and supersonic) within the tuyeres require more equipment but provide significantly better results, particularly in production rates and coke savings. Supersonic oxygen–natural gas burners, which are retrofitted into the tuyeres, allow for even greater coke savings and production increases, plus reduced alloy losses of silicon and manganese. These burners can also be used in tandem with a solids injection lance to add fine alloy particles or recycled fines directly to the melt zone.

To discuss the right solution for your operation, give us a call at 800-654-4567. Mention code 749.
← Back to Foundry
An error has occured, please fix the highlighted fields.
To request a quote or for more information about Air Products, please fill out the form below, and an Air Products representative will contact you shortly.
Please use the form below to contact us.

What can we answer for you?

  1. What kind of inquiry?

If you would prefer to contact us by phone, you can call any of our Air Products locations worldwide by visiting Worldwide Locations & Phone Numbers.


This site uses cookies to store information on your computer. Some are essential to make our site work; others help us to better understand our users. By using the site, you consent to the placement of these cookies. Read our Legal Notice to learn more.