Argon oxygen furnace is a kind of refining
furnace, which is characterized byside-blowing oxygen through the bottom tuyere with an immersion way. When thetuyere center is blown in with oxygen, argon and mixed gas of nitrogen, theproportion of argen and oxygen should be adjusted, then, it can achieve thepurpose of decarburizing and retaining of chrome. Argon and nitrogen are used ascooling gas for tuyere ring to extend the life of tuyere. It can get the bestoperation by controlling the flow of the tuyere ring. And the flow of the tuyerecenter and tuyere ring can be controlled in master-control room.
The burningloss of tuyere, refractories and chrome is influenced greatly by the temperatureof molten steel. So we can offer a special online temperature measuring systemto buyers.
We adopt secondary combustion of top lance technology. It canincrease the volume of cold material put into the VOD and shorten the durationof smelting, and guarantee the continuous casting for multiple furnaces atlast.
We also use the charging system with a weigh on its multiple bunkers,which can be directly connected with control system of computer. Then thesmelting cycle will be shortened and labor intensity will be reduced.
Thisequipment has a control system of intellectualized smelting process, which candecrease the consumption of all kinds of raw materials and gas during thesmelting, and guarantee a stable quality of products.
New security design for smelting
It is aiming at theplugging of lance and the back-flow of molten steel which caused by electricityinterruption during smelting process.
AOD series refining furnaces have afunction to keep pressure of tuyere and contain uninterruptable power output tostop the above accidents, consequently improve the safety of smeltingprocess.