The paper discusses the use of a secondary smelting technology for reinforcing steel (rebar) production at Baku Steel Company, LLC, noting the feasibility of adding metallized pellets to the furnace charge consisting of scrap metal and other manufacturing waste products. The addition of such pellets enhances the process of melting the charge in an electric arc furnace (EAF). The process utilizes direct-reduced iron (DRI) and hot-briquetted iron (HBI) pellets. The status of metallized pellet production in different countries was analyzed. The characteristics of DRI and HBI pellets were compared. The results of two EAF melting runs conducted at Baku Steel Company, LLC are presented. It is shown that the use of metallized raw materials in the EAF charge resulted in 87 to 90 % yield of usable metal. The rebar stock obtained from this steel meet the standard strength requirements. Various EAF pellet-charge layouts are demonstrated, noting the importance of continuous loading of the charge materials through the furnace roof. Alternatively, the pellets can be loaded into EAF through an opening in the furnace wall. At Baku Steel Company, LLC, pellets are loaded through the furnace port. It is shown that the mixture of materials is supplied to a bunker, and then loaded into the furnace using a belt.

中文翻译：

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金属化原料在电炉炼钢中的应用

该论文讨论了在 Baku Steel Company, LLC 使用二次冶炼技术生产钢筋（钢筋），并指出了将金属化球团添加到由废金属和其他制造废料组成的炉料中的可行性。这种球团的添加增强了在电弧炉 (EAF) 中熔化炉料的过程。该工艺使用直接还原铁 (DRI) 和热压块铁 (HBI) 球团。分析了不同国家金属化球团生产的现状。比较了 DRI 和 HBI 颗粒的特性。介绍了在 Baku Steel Company, LLC 进行的两次 EAF 熔炼运行的结果。结果表明，在 EAF 炉料中使用金属化原材料可产生 87% 至 90% 的可用金属。从这种钢材中获得的钢筋坯料符合标准强度要求。展示了各种 EAF 颗粒装料布局，并指出了通过炉顶连续装载装料的重要性。或者，可以通过炉壁上的开口将球团装入 EAF 中。在 Baku Steel Company, LLC，球团矿通过炉口装载。图中显示了将材料混合物供应到料仓，然后使用皮带将其装入炉中。