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直接还原铁. 本词条由 “科普中国”科学百科词条编写与应用工作项目 审核 。. 直接还原铁 (DRI-Direct Reduced Iron)是精铁粉或氧化铁在炉内经低温还原形成的低碳多孔状物质，其化学成分稳定，杂质含量少，主要用作电炉炼钢的原料，也可作为转炉炼钢的冷却剂，如果经二次还原还可供粉末冶金用。.
2012-1-5 Direct-Reduced Iron. Direct reduced iron is iron ore in the form of lumps, fines or pellets that have had the oxygen removed by using hydrogen and carbon monoxide. From: Encyclopedia of Energy, 2004. Related terms: Hydrogen; Basic Oxygen Furnace; Electric
2 天前 Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon monoxide (CO) which acts as reducing agent.
The term direct reduced iron, or DRI, has a generic meaning which covers a number of products with a variety of properties and hazards. There has been a disturbing increase in the number of potential life threatening incidents involving the carriage of direct reduced iron (DRI).
In the direct-reduced iron (DRI) process, the iron ores are reduced directly to sponge iron by gaseous reducing agents! Electro-steel process. In the electric steel process, the sponge iron obtained from the direct reduced iron process is used for crude steel making. In general, scrap is also added to this process as well as pig iron from the blast furnace process.
2021-1-30 Direct reduced iron. Direct reduced iron ( DRI ), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon produced from natural gas or coal. Many ores are suitable for direct reduction.
Direct Reduced Iron (DRI) Market Outlook & Key Findings As direct reduced iron significantly lowers the need for batch charges that eventually raises the overall cost-efficiency and productivity of the process, DRI remains among the favored feed for electric arc furnaces (EAF)
2012-12-18 India is the largest producer of Direct Reduced Iron in the world with annual capacity of nearly 10 Mt comprising coal and gas based DRI plants. India has the largest coal based DRI capacity. The industry is faced with problems relating to raw materials availability and their quality.
1,721 direct reduced iron products are offered for sale by suppliers on Alibaba, of which other iron accounts for 1%, casting accounts for 1%. A wide variety of direct reduced iron options are available to you, such as casting. You can also choose from control, gate, and butterfly direct reduced iron, as well as from welding direct reduced
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