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Steel making process – ArcelorMittal

In the former process, iron ore is the main raw material. In an electric furnace, scrap iron is used and occasionally also sponge iron. Sponge is an intermediate product, which is produced from iron ore by means of direct reduction (= DRI or directly reduced iron) and that is then further reduced and smelted in an electric furnace.

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Making steel | ArcelorMittal

There are three main raw materials needed to make steel. Iron ore, coal and scrap steel. To make steel, raw materials are first turned into liquid iron, either in a blast furnace or using the direct reduced iron process. Steels produced by either of the two methods are cast using a continuous casting machine.

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MIDREX Processes -

2. MIDREX process Fig. 3 is a flow chart for the MIDREX process. Either lump ore, or pellets prepared for direct reduction ironmaking, are charged as raw material from the top of a shaft furnace. The ore is reduced inside the furnace and the reduced iron is discharged from the bottom of the furnace. Reductant gas blown

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CO2 Reduction Catalysts and Catalysis

Reduction • Water Gas Shift Reaction • Introducing CO. 2. Reduction Catalysts • Methods • Synthesis of Catalysts and Chemical Environments • CV and Theory • IR-SEC • Results • Smieja • Franco • Riplinger • Fischer-Tropsch • Conclusions . 4 •

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Hydrogen Uses in Ironmaking - Energy

is a proven technology for industrial production of iron, using "fossil" hydrogen at scale. The process can reduce CO 2 emissions by 50%-80% over traditional BF-BOF. Direct reduction can be a bridge technology for ironmaking as Hydrogen becomes available at scale New plants can be built or existing plants can be converted to H 2 as

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OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION …

iron could be lowered to 3.5-3.7 kilo-caloriesIton of sponge iron with partial recirculation of char. The trials yielded adequate data for designing a commercial prototype, or for industrial production of sponge iron. Introduction The direct reduction - processes, developed for converting iron …

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Vincent Chevrier, Ph.D. GM Business Development

•MIDREX NG® is a proven technology for industrial production of iron, using "fossil" hydrogen at scale. The process can reduce CO 2 emissions by 50%-80% over traditional BF-BOF. •Direct reduction can be a bridge technology for ironmaking as Hydrogen becomes available at scale

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make sponge iron from coal and iron ore process

The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic ironSponge iron making full process_Coal base DRI YouTube,Dec 24, 2018· Direct reduced iron (DRI), also called sponge iron,[1] is produced from the direct reductionof iron ore (in the form of lumps, pellets, or fines) to iron

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Alternative Iron making processess - SlideShare

Jan 18, 2014· presentation on alternative iron making smelting processess, relevance to INDIA. First, iron ore fines are reduced (de-oxidized) step by step in fluidized reduction furnace, and become bigger particles by HCI roller. Coking coals are processed to coal fines using special technology, and these fine particles are where the word FINEX comes from ...

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"DR Grade Pellet Quality, Supply and Prices"

•direct reduction processes: – chemical change is removal of oxygen from ore – remaining constituents stay with direct reduced iron product but increase in concentration due to the removal of oxygen – these affect process economics of subsequent EAF melting vessel • Blast furnace, smelting reduction processes – formation of refining slag allows modification of hot

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ppt in iron ore pellet reduction process

Direct reduced iron Wikipedia. Process. Direct reduction processes can be divided roughly into two categories: gas-based, and coal-based. In both cases, the objective of the process is to drive off the oxygen contained in various forms of iron ore (sized ore, concentrates, pellets, mill scale, furnace dust, etc.), in order to convert the ore to metallic iron, without melting it (below 1,200 ...

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The Use of Hydrogen in the Iron and Steel Industry

iron added to dilute the tramp elements such as copper and zinc to improve final product quality • DRI – D irect R educed I ron is one of the iron products added to the scrap to increase purity • DRI is iron ore that has been reduced to iron with syngas without melting • DRI processes in U.S. generally use natural gas to reduce ...

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Direct Reduction Iron Process Ppt - Evert Bioenergie

Direct Reduction Iron Process Ppt. 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 few …

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Cost Effectiveness Analysis of HYL and Midrex DRI ...

Apr 27, 2016· agglomerate fine iron ore dust in conjunction with other material (typically limestone) to form a product that can be added to the blast furnace. Another alternative to hot molten iron making is the direct reduction method. In this method, iron is reduced in …

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Direct Reduction Reformer - Schmidt + Clemens

Solutions for Direct Reduction Reformers Our products - tailor-made for your specific requirements Schmidt+Clemens is the Market leader for centrifugally cast tubes for DRI thanks to the trust of many customers around the world, which has allowed us to provide more than 18.000 assemblies since 1986.

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direct reduced iron authorstream

Direct Reduced Iron |authorSTREAM PowerPoint Presentation: Introduction of DRI Sponge iron is a term given to the product obtained by reduction of iron ore in solid state. Sponge iron is a mixture of reduced metallic iron, unreduced iron oxide and the associated with …

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Pig iron - blast furnace route | International Iron ...

Pig Iron Production - Blast Furnace Route. More than 1.1 billion tonnes of blast furnace iron was produced globally in 2016. Blast furnace economics are such that larger units have lower unit production costs, hence there has been a trend to bigger and bigger furnaces. Modern blast furnaces produce more than 10,000 tonnes per day.

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HYL Process for Direct Reduction of Iron Ore – IspatGuru

Apr 22, 2017· HYL process for direct reduction of iron ore was the fruition of research efforts begun by Hojalata y L.mina, S.A. (later known as Hylsa), at the beginning of the 1950s. After the initial evaluation of the concept, it was decided to install a process using a tunnel furnace and several runs were undertaken. The first batch was made by using an ...

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iron processing | Britannica

Direct reduction, in which iron ores are reduced at temperatures below the metal's melting point, had its origin in such experiments as the Wiberg-Soderfors process introduced in Sweden in 1952 and the HyL process introduced in Mexico in 1957. Few of these techniques survived, and those that did were extensively modified.

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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.com / 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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CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING

iron oxides are the major mineral phases for siliceous sinter, the ferrites, magnetite and mixed calcium iron silicates are the major mineral phases for fluxed sinter . Sintering is a fast process and it is unlikely that equilibrium will be reached during sintering. The reaction mechanism proposed for self fluxing sinter is summarized below :

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Seminar on HYL Process - SlideShare

Dec 23, 2013· Generally all process are used the coal for reduction of iron ore. In substitution of coal we can use the natural gas and some fuel gas for reduction of iron ore and production of DRI commercially in HYL. 4. DRI is the Direct reduction of Iron Ore by some reductant. The Reductant may be the Solid or Gas.

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SPONGE IRON PLANT

MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the reducing agent namely solid. Most solid reduction process use non-coking coal as reducing agent due to abundantly available non-coking coal. The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore.

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Direct reduced iron final.ppt - SlideShare

Jul 15, 2015· Direct reduced iron final.ppt 1. International Corporation 2. History Established as 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, …

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IRON Direct Reduction - The Forefront Technology 1. THE …

•ENERGIRON - Pioneering in direct reduction since the 1950s with the WORLD'S FIRST INDUSTRIAL PLANT in 1957; • ENERGIRON is the unique direct reduction technology that, with the same process scheme configuration, lets you choose the best energy source - natural gas, reformed gas, Syngas from a coal gasifier or even Coke Oven Gas without any modification;

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Hazard Identification, Risk Assessment, and Control ...

Objective: The aim of the study was to identify all the possible hazards at different workplaces of an iron ore pelletizing industry, to conduct an occupational health risk assessment, to calculate the risk rating based on the risk matrix, and to compare the risk rating before and after the control measures.

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Iron Ore Reduction - an overview | ScienceDirect Topics

The iron-ores that are charged into the process go through fluidized bed reactors where they are heated and reduced to Direct Reduced Iron (DRI). The DRI is then charged into the melter gasifier where the final reduction and melting as well as the production of reducing gas by gasification of coal with oxygen takes place ( Schenk, 2011 ).

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Direct Reduction Process - an overview | ScienceDirect Topics

The direct reduction processes in combination with the melting of directly reduced iron to produce steel in the EAF offer an alternative to the BF-BOF route. The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. Sponge iron can be ...

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