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Electric arc furnace steelmaking has a strong adaptability to the charge. It uses scrap steel as the main raw material, but it can also use solid and liquid iron-containing raw materials, such as molten iron (blast furnace or ironmaking furnace), sponge iron (DRI), hot briquette (HBI), pig iron blocks, etc.
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Analysis of advantages of eAF bottom blowing technology (1) Promote the melting of scrap steel, reduce the soft melting phenomenon of cold zone, in order to help eliminate the existence of cold zone in the process of eAF steelmaking. (2) it is beneficial to improve the reaction rate of steel slag i
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The operation of adjusting the slag composition, alkalinity, viscosity and reaction ability in the production of steel and iron. For example, the oxygen blowing operation is to generate slag with sufficient fluidity and alkalinity, which can transfer enough oxygen to the metal surface, so as to reduce the sulfur and phosphorus below the upper limit of the planned steel grade, and make the oxygen spray splash The amount of slag and spillage is minimized.
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The structure of the EBT electric furnace is to change the tapping trough of the traditional electric furnace into a tapping box, and the tapping opening is vertically downward at the bottom of the tapping box.The lower part of the tap hole is equipped with a tap hole opening and closing mechanism t
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Although EAF steelmaking has many advantages, however, due to the problems of scrap and electricity cost in China, EAF steelmaking can not compete with converter steelmaking in ordinary steel and long-term products. EAF steelmaking only occupies a leading position in the production of special steel
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