Inject your business with one of our state-of-the-art systems that lowers costs and improves productivity in your electric arc furnaces (EAF) and cupolas. Introducing pure oxygen into your metal production operations can result in a more efficient use of your resources, improved productivity and lower costs. And because our injection technologies have been installed worldwide, you can trust our expertise and experience to boost your business.
COJET® Gas Injection
Our COJET® Gas Injection system uses a process and injector nozzle that delivers a 1.5-meter laser-like coherent jet of oxygen at supersonic speeds into the molten bath in an electric arc furnace. The fixed, wall-mounted injector nozzle retains the original diameter and velocity of the oxygen jet, delivering precise amounts of oxygen to the steel bath with less cavity formation and splash compared to traditional manipulators. Once the oxygen jet impinges on the steel bath, the concentrated momentum of the oxygen beam dissipates in the steel as fine bubbles, providing deep penetration and effective slag-metal mixing. The nozzle also operates as a conventional sidewall burner to melt scrap and as a supplemental oxygen source for post-combustion, improving furnace productivity and decreasing power consumption.
In addition, COJET Gas Injection Technology allows for automatic furnace operation, decreases metal production costs through lower power consumption, extended furnace life, decreased maintenance and decreases refractory erosion, arc flare damage and maintenance gunning. It also enhances slag foaming, speeds decarburisation, eliminates the need for lance manipulators, decreases splashing and improves slag-metal stirring.
Argon Oxygen Decarburisation (AOD)
Today, over 75% of the world’s stainless steel is made using the Argon Oxygen Decarburisation (AOD) process invented by Linde. AOD provides an economical way to refine stainless steel with minimal loss of precious elements thanks to argon dilution. AOD is also widely used for the production of specialty alloys such as silicon steels, tool steels, nickel-based alloys and cobalt-based alloys. It combines higher metallic yields with lower material costs and cleaner metal, coupled with increased productivity.
Optifire® Fluidic Burner
If you operate an electric arc furnace or any scrap melting furnace, you’ll want to add the productivity-boosting firepower of Linde’s OPTIFIRE ® fluidic burner to your plant. Linde’s OPTIFIRE® burner delivers big results:
- Increases productivity
- Improves heating uniformity
- Reduces heating time
- Helps to eliminate cold spots
- Makes efficient use of chemical energy