Here is a description of the BOF process (MSU): This process rose directly out of the Bessemer process, and can be traced as the Linz-Donawitz process brought to market in the 1950s (Warrian). The Basic Oxygen Furnace The Basic Oxygen Furnace process, or BOF, makes steel using raw material inputs. Today, two distinct processes make up the bulk of worldwide steel production: the Basic Oxygen Furnace process and the Electric Arc Furnace process (MSU). Once Bessemer’s process hit the market, steel production skyrocketed, setting the stage for continuous innovation in the industry. Though steel’s roots can be traced back to early human civilizations (Warrian, 11-2), it was not until the 19th century that Sir Henry Bessemer’s new process enabled the inexpensive production of mass produced steel. This alloy can be up to 1,000 times stronger than iron, making steel an extremely useful and sturdy building material (ScienceKids). But what is steel, and why is it so important? Steel is an alloy, meaning that it is made by combining iron with another element, usually (but not always) carbon. Equipped with advanced PLC control system and smelting model.What is Steel? Globally, steel can be found in a variety of products and structures – from personal vehicles to the Burj Khalifa: the world’s largest skyscraper. Raw material (DRI, HBI), lime and alloy automatic charging system could be equipped.Ĩ. Scrap steel continuous charging and preheating system could be applied thus save energy, reduce consumption and improve smelting efficiency.ħ. Fume collection rate is increased due to adopting furnace roof fourth hole and other fume discharging methods.Ħ. Power consumption for per ton of steel and smelting period are reduced due to adopting furnace door C-O lance and furnace wall coherent oxygen lance.ĥ.
Impendence of large current reducing due to the cooper and steel composited conductive arm and large section water cooled cable.Ĥ.
Slagless tapping and tapping temperature reducing result from EBT.ģ. Refractory material saving due to the water cooled roof and water cooled panels.Ģ. Additional charging during the melting process and primary alloying process.ġ. Partial hot metal charging or charging pig iron, sponge iron (DRI) and hot briquetted iron (HBI).ģ. Used for scrap melting, decarbonization, dephosphorization, desulfuration, deoxygenationĪnd molten steel heating etc, for melting steel of different grades and components.Ģ.
Electric arc furnace steelmaking full#
With comprehensive energy utilization technology, furnaces of carbon steel lance and furnace door cluster oxygen lance are used for two times burning of CO in molten pool, making full use of chemical energy in flue gas to reduce electricity consumption and build foamed slag and using high impedance technology to raise two When the secondary voltage is increased, the electric power is relatively stable, the impact on the power grid is reduced, the short network system current is smaller, the energy consumption and electrode consumption are reduced, and the effective input of electric power is improved.ġ. Modern steelmaking electric furnace has widely adopted new technologies such as water cooled furnace cover, water cooled furnace wall, conductive lateral arm and eccentric bottom (EBT) tapping. Its structure for the furnace cover rotary open top feeding, torque motor electrodes automatic adjustment movements, large cross-section of water-cooled cables, furnace and the furnace cover upgrading tilting rotation using hydraulic, electrical control by PLC control, technology advanced.Īccording to the power of the furnace is divided into ordinary power, high power, ultra-high power electric furnace. 40Ton Electric Arc Furnace Steel Melting Equipment in Industrial ProductionĮAF arc for a heat source to scrap as raw material for steel smelting general, high-quality carbon steel, alloy steel for various equipment for smelting.
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