Direct Oxygen Injection
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
The angle of the flame of this fixed wall mounted burner can be changed by
up to 30O in the vertical and horizontal directions. A remote-controlled
operation allows the flame to be directed at cold scrap or cold spots and
accelerates the meltdown in the furnace. The burner does not use any moving
part, providing worry-free operation which maximises your up-time and
minimises your cost.
