Argon oxygen furnace is a kind
of refining furnace, which is
characterized by side-blowing
oxygen through the bottom
tuyere with an immersion way. When the tuyere center is
blown in with oxygen, argon
and mixed gas of nitrogen, the
proportion of argon and oxygen
should be adjusted, then, it
can achieve the purpose of
decarburizing and retaining of
chrome. Argon and nitrogen
are used as cooling gas for
tuyere ring to extend the life
of tuyere. It can get the best
operation by controlling the
flow of the tuyere ring. And
the flow of the tuyere center
and tuyere ring can be
controlled in master-control
room.
The burning loss of tuyere, refractories and chrome is
influenced greatly by the
temperature of molten steel. So we can offer a special online
temperature measuring system
to buyers.
We adopt secondary
combustion of top lance
technology. It can increase the
volume of cold material put into
the VOD and shorten the
duration of smelting, and
guarantee the continuous
casting for multiple furnaces at
last. We also use the charging
system with a weigh on its
multiple bunkers, which can be
directly connected with control
system of computer. Then the
smelting cycle will be shortened
and labor intensity will be
reduced.
This equipment has a control
system of intellectualized
smelting process, which can
decrease the consumption of all
kinds of raw materials and gas
during the smelting, and
guarantee a stable quality of
products.
New security design for
smelting: It is aiming at the plugging of
lance and the back-flow of
molten steel which caused by
electricity interruption during
smelting process. AOD series
refining furnaces have a
function to keep pressure of
tuyere and contain
uninterpretable power output
to stop the above accidents, consequently improve the
safety of smelting process.
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