OXYGEN LANCE MANIPULATOR

The carbon oxygen lance mainly refers to the EAF smelting, generally referring
to the carbon oxygen lance at the EAF furnace door, as well as the furnace wall
carbon oxygen burners also called KT lance. The furnace door carbon oxygen
manipulator is equipped with two water-cooled nozzles, some with two water-
cooled oxygen lances, and some with combination oxygen lance.

The former consists of two oxygen lances arranged around, one is a Laval
supersonic oxygen lance and the other is a carbon lance used for direct hole
carbon powder spraying; The latter is equipped with two spray lance arranged
above and below the overall lance, with a supersonic oxygen lance below, which
is also a Laval nozzle, and a carbon lance above.

ADVANTAGES
OXYGEN LANCE MANIPULATOR ADVANTAGES
oxygen lance manipulator Advantages
During smelting, the spray lance inside the furnace door gradually inserts into
the furnace as the scrap steel melts. Compared with traditional smelting
processes, the use of EAF carbon oxygen lance has the following advantages:

The furnace door carbon oxygen lance injects oxygen into the molten pool at
Mach 2 supersonic speed, which changes the Chemical equilibrium in the molten
pool and greatly increases the amount of CO in the molten pool.

The whole process of foam slag smelting, due to the participation of carbon
injection, the conditions for the whole process of foam slag smelting are
improved, the splash is reduced, the power utilization rate is increased, the
noise is reduced, and the quality is improved;

As the temperature of the flue gas increases, sufficient oxygen reacts with
carbon. Compared with traditional systems, free oxygen is used for CO
combustion during decarbonization, resulting in a weaker oxidizing atmosphere
in the furnace, reducing electrode and refractory consumption.

WHY
WHY SUCH LANCE SYSTEM IS NEEDED?
Carbon removal.

Promotion reduction reaction.

Slag forming.

Horizontal stirring of liquid bath.

Remote control.

Optimal height (up and down) adjustment for different process stages.

Increase of oxygen efficiency and productivity.

Increase of chemical reaction to speed up liquid melting down.

For more information about different types of furnaces used in metallurgy,
please feel free to contact us!

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