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Direct reduced iron Wikipedia

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 reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting point of iron. Reduced iron derives its name from these processes, one example bein

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Direct Reduced Iron (DRI) Production Plant

u A direct reduced iron (DRI) production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore (or iron ore pellets) with reducing gases. u While the produced DRI is mainly used as the raw material of electric steelmaking, it is also used as blast furnace feed for energy saving (reduction in coke consumption) and increased production of

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Direct reduced iron and production of DRI part 2 YouTube

11/03/2016· Direct reduced iron and production of DRI part 1 Duration: 11:26. The HBI direct reduction process voestalpine in Texas Duration: 1:53. voestalpine AG 12,100 views. 1:53 . How do I find

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Midrex® the world’s leading direct-reduced iron

05/11/2015· Midrex is an innovative ironmaking process, developed for the production of direct-reduced iron (DRI) from iron ores and primarily natural gas. You want to k...

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Direct reduced iron final.ppt LinkedIn SlideShare

Direct reduced iron final.ppt 1. Daewoo International Corporation 2. History Established as Daewoo Corporation (1967) Became member company of POSCO Group (2010) Major Business International Trading Project Organizing Natural Resource Development Manufacturing : Textile, Cement, Steel Processing etc Global Network Total : 95 Asia 46, Middle East 7, Africa 12, Europe 9 CIS 8, America

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Direct Reduced Iron |authorSTREAM

26/11/2013· Direct Reduced Iron authorSTREAM Presentation. PowerPoint Presentation: DESCRIPTION OF KILN:- The kiln has been designed based on certain L/D ratio, percentage degree of inclination, rpm etc. Kiln has a length of 70.8 m and a shell diameter of 4.2 meter. the kiln has inclination of 2.5% ,rests on four support stations . iron–ore dolomite and about 43-45% coal of the total coal

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Direct Reduction Process an overview ScienceDirect Topics

DRI is also known as sponge iron, it is a solid-state direct reduction process (Fig. 2.6). Coal, dolomite and iron ore or pellets are fed into one end of a rotary kiln, while sponge iron and char are withdrawn from the other end. Primary and secondary airs are supplied to the kiln to initiate combustion and reaction processes (Choudhury, 2014

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What is DIRECTLY-REDUCED IRON? What does YouTube

12/10/2017· The direct reduction process uses pelletized iron ore or natural "lump" ore. One exception is the fluidized bed process which requires sized iron ore particles. The direct reduction process can

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Direct reduced iron and production of DRI part 1 YouTube

11/03/2016· Shenwu's new regenerative rotary hearth furnace direct reduction iron making process Duration: 10:36. Arman Waste Management Limited 2,030 views. 10:36.

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MIDREX Processes 神戸製鋼所

MIDREX Processes Masaaki ATSUSHI, Hiroshi UEMURA, Takashi SAKAGUCHI Plant Engineering Department, Iron Unit Division, Natural Resources & Engineering Business Since 1978, when a plant based on the MIDREX process was built in Qatar for producing direct reduced iron, Kobe Steel and MIDREX Technologies, Inc., have collaborated to make many technical improvements in the process.

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Direct-Reduced Iron Process (DRI) NIPPON STEEL

NIPPON STEEL ENGINEERING CO., LTD. provides new iron source technology that enables the achievement of productivity improvements, operational cost reductions, CO 2 emissions reductions, and capital investment reductions through the optimal combination of Tenova HYL and Danieli's natural gas-based direct-reduced iron technology (ENERGIRON) with our blast furnace equipment

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OVERVIEW OF THE STEELMAKING PROCESS

Direct reduction Scrap Ladle (Refining) Electric arc furnace (Steelmaking) Iron Ore Pellets Electric Arc Furnace Steelmaking Continuous casting Design by Blisscommunication / Cover photo: ThyssenKrupp Steel / Tubes photo: Salzgitter The process shown above is illustrative only and is not designed to show the steelmaking process in detail.

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(PDF) i) Direct Reduced Iron: Production ResearchGate

In book: Encyclopedia of Iron, Steel, and Their Alloys (pp.pp 1082-1108) Chapter: i) Direct Reduced Iron: Production; Publisher: CRC Press, Taylor and Francis Group, New York.

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Direct-Reduced Iron an overview ScienceDirect Topics

SIS in steel production: Production of direct reduced iron involves reduction of iron ores in pallet or lump form in the presence of reducing gas comprising CO and H 2. SIS plays an important role in this process, which is a stone process rather than a normal iron extraction process. The shaft furnace used in this process operates at 6 kg/cm 2 and 1000°C. The greatest hazard is associated

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Production of Direct Reduced Iron in Rotary Hearth

Production of Direct Reduced Iron in Rotary Hearth Furnace The reduction of iron oxides by volatiles in a rotary hearth furnace process: Part II. The reduction of iron oxide/carbon composites Metallurgical and Materials Transactions B, 2006, Volume 37, Number 2, Pages 223-229<br />[5] Fu-ming Zhang, “Progress of rotary hearth furnace reduction technology, ibid” pp. 1347–1352<br />[6

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Finex® the ironmaking solution of the 21st century

10/09/2015· Finex® is an innovative ironmaking process jointly developed by Primetals Technologies and the Korean steel producer Posco for the production of hot-metal based on the direct use of fine ore

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Midrex shaft process LinkedIn SlideShare

Midrex shaft process 1. MIDREX PROCESS • The “Midrex Process” using The midrex Shaft Furnace to converts iron oxide in pellet or lump form into highly metallized direct reduced iron. 2. Con’t “Simple Process” Most naturally occuring iron ore exist as hematite (Fe2O3). In this process, the chemically bonded oxygen in the iron ore is

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The Making of Iron & Steel SEAISI

Reduction: lronmaking Iron ore, as mined, is a combination of iron with oxygen and various other unwanted substances, generally known as "gangue". The first metallurgical step is to reduce iron ore to metallic iron, a process which is mostly carried out in a blast furnace, using coke as both a fuel and reducing agent. The metallic iron produced

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GASIFICATION AND THE MIDREX? DIRECT REDUCTION PROCESS

GASIFICATION AND THE MIDREX DIRECT REDUCTION PROCESS By: Rob Cheeley Senior Sales Engineer, Midrex Direct Reduction Corporation INTRODUCTION The production of direct reduced iron (DRI), a basic raw material for making steel, is concentrated in a

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(DRI) Direct Reduction Iron Plant Flowsheet Options

(DRI) Direct Reduction Iron Plant Flowsheet Options 1. DRI Plant Flowsheet Options By: Gerard B. Hawkins Managing Director, CEO 2. DRI Processes Types using Steam Reforming HYL type flowsheets Midrex type flowsheets Lookalikes exist in each category 3. DRI Processes HYL III Process

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