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process flow diagram of direct reduction in qatar steel ,

Hot Products Used for process flow diagram of direct reduction in qatar steel company , Direct Reduced Iron , SL/RN Process Flow Diagram , coal based lurgi dri process flow chart iron ore terminal flow diagram process flow diagram at a mining industry...

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Iron ore pellets

In a DR process, iron ore pellets and/or lump iron ores are reduced by a reducing gas to produce DRI or hot briquetted iron HBI Depending on the generation of the reducing gas, two different DR processes are commercially available gas-based and coal/oil-based...

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direct reduction of iron plant schematics

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 elementary carbon produced from natural gas or coal...

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jindalsteel powerltdpdf Coal Iron

DRI PRODUCTION In India What is DRI and HBI Direct Reduced Iron DRI is a reduced Iron in Solid State reduction process produced from iron ore which is consequently used as a feedstock in EAF and Induction Furnace for Steel Making In India the coal based kiln type DRI plants became more popular because of availability of coal and to meet out the requirement of small steel plants As per the ....

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WELSPUN STEEL LIMITED

Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state It is a substitute for scrap and is mainly used in making steel through the secondary route , Sponge Iron Lumps Sponge Iron Fines Fe M 80 177 2 80 177 2 , SL/RN technology is a coal based rotary kiln direct reduction process...

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SL/RN Middle East Steel Industry

Suspended Hydrogen Reduction of Iron Oxide Concentrates This technology will require 38 less energy than the blast furnace process or 74 GJ/ton of hot metal Even when natural gas or coal is used significant reduction in carbon dioxide emissions 39 and 69 of ,...

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Lubrication of Girth Gears in Sponge Iron Plants

In coal based sponge iron kilns, depending on the quality of reductant coal used, about 60 of the total heat input is utilized in the reduction process About 40 of the heat input is discharged with the kiln waste gases and the kiln materials in the form of chemical heat...

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Quality requirements of iron ore for iron production ,

16 - Quality requirements of iron ore for iron production Author links open , oil and natural gas in the reduction zone of the furnace, which is typically a rotary kiln Typical examples of the coal-based process include the SL/RN and ACCAR process , Lin J, Peng XReduction behaviors of iron ore lump and pellets with H 2-CO gas ....

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direct reduction of iron ore from tunnel kiln process

The SL/RN Process is the most widely used coal based reduction Technology the world Theiron ore, coal and flux charged into the rotary kiln are rapidly heated up by Know More...

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animated spong iron manufacturing process

Jan 07, 2013 0183 32 A vertical retort is used for the reduction of iron ore as against a rotary kiln in coal based sponge iron process , also called sponge iron, is produced from direct reduction of iron ore in the form of lumps, , 2010 All the major sponge iron processes like SL/RN, ....

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Developments in Ferrous Production Metallurgy in

tio fot lump ores and pellets and that there was a considerable differ 173 , Iron Oxide Reduction An experimental investigation of , state of the art of the coal-based SL/RN process and suggested that it offers flexibility in the use of raw materials with plant capacities rang 173 ing from single kiln operation of ....

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continuous beneficiation iron ore

May 10, 2016 0183 32 Iron Ore Buyers In China, Wholesale Various High Quality Iron Ore Buyers In China Products from Global Iron Ore Buyers In China Suppliers and Iron Ore Buyers The buyers of Concentrate Magnetite Lump Iron Ore , mining grinding ball mill for ore, cement clinker, gypsum,glass,ceramic/high outout continuous ball mill...

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Sponge Iron in Jamshedpur, Jharkhand Sponge Iron Price ,

Sponge iron production using coal involves Reducing iron- ore with coal or lignite The reduction is carried out in a Rotary Kiln at a pre-determined temperature and controlled atmosphere The input raw material ie irons ore, coal and limestone in the required range of speeds...

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Emerging Technologies for Iron and Steelmaking

Several processes based upon the direct reaction of coal and iron ore in a rotary kiln, such as the SL/RN process, have reached various stages of development since the 1960s 20 Due to the high gangue and low specific productivity of these processes, they have not received a great deal of attention for commercial production Several processes ....

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sl rn direct reduction

coal based reduction lump iron sl rn tional SL/RN direct reduction plants based on a rotary , In the SL/RN process, iron ore, coal, and a desulfurizing , lump coal is used as the reductant...

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SL/RN Downstream Consulting Pty Ltd

The SL/RN process is a kiln based direct reduction process which produces hot or cold DRI from lump, pellets, fines including iron sands and ilmenite ore The process is coal based and works at high temperature and near atmospheric pressure...

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DRI Basics Steelmaking Iron

Gas-Based Processes Iron Ore Natural Gas Process Gas Preparation Fines Pellets/Lumps p Feedstock Preparation p Process Gas Reduction Unit Coal Hot Briquetting Cold/Hot Discharge HBI DRI...

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Seminar on HYL Process

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...

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SL/RN Process Industrial Efficiency Technology Measures

The so-called Stelco-Lurgi/Republic Steel-National Lead SL/RN process is a widely used coal-based DRI-making process which uses a rotary kiln The process uses lump ore, pellets, beach sand or ilmenite ore and solid carbon to produce hot or cold DRI The process operates at high temperature and atmospheric pressure...

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world iron steel industry trends steelmaking technology energy

Coal-based iron making processes such as Corex, based on iron ore lump or pellets, have made only slow progress Other iron making processes based on coal and iron ore fines continue to be researched and promoted, but have made little impact at a global scale...

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china group for reduction iron ore slrn

coal based reduction lump iron sl rn - labourworxsacoza china group for reduction iron ore slrn , reduction process uses pelletized iron ore or natural lump , for iron ore and ยป Learn More producing iron ,...

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New Method of DRI Production Financial Tribune

Kavir Damghan Steel Company is to employ the so-called Stelco-Lurgi/Republic Steel-National Lead SL/RN method to produce direct reduced iron The technology, which will be imported from India ....

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Mathematical model of the SL/RN direct reduction process ,

The model is based on steady state principles and is capable of quantitatively describing the different chemical reactions in the kiln such as reduction, Boudouard reaction, coal devolatilization, combustion in the freeboard together with the mass and heat flows...

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Studies on Energy Integration for Modification in Existing ,

It is observed that the coal is the major source of energy for the Sponge iron plant and all energy conservation schemes will lead to a decreased consumption of coal Based on the principles of process integration, the present work investigates operational modifications which can lead to efficient energy integration in a coal based Sponge iron plant being operated with SL/RN process...

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direct reduced iron process flow

US 3 billion Welspun Group is an , For the direct reduction of iron ore the , Now the coal if the desired temp for reduction process is obtained , iron ore with Get More Info , DRI is the Direct reduction of Iron Ore by some reductant The Reductant may be the Solid or Gas Get More Info...

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sponge iron process

Jul 29, 2010 0183 32 The carbon content in sponge iron produced by coal based rotay kiln processes are generally low and is in the range og 008 to 020 The carbon content in gas based processes can be controllrd to a level of 15 to 20 based on requirement for steel making...

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Panel DRI technologies optimisation and evolution, where ,

DIRECT REDUCED IRON DRI/HBI coal-based gas-based ----- ----- Rotary Rotary Fluid Shaft Fluid Kiln Hearth Bed Furnace Bed , fines lump ore SL/RN Inmetco Circofer Midrex FINMET DRC Fastmet HyL Iron Carbide others Circored Fluid Bed Processes ....

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Prospects for Coal

Most coal-based reduction processes including SL/RN2 employ rotary kilns Pellets, or lump-ore, mixed with coal are/is charged into the rotary kilns2 and heated by coal burners to produce DRI To avoid the , reduction of iron oxide by carbon monoxide Eq 3 2...

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Thermal kiln / rotary by Outotec DirectIndustry

The SL/RN process was developed in the early 1960s by Outotec in collaboration with three US compani The process principles are the basis for numerous rotary kiln plants and still represent the dominant technology for the direct reduction of lump ore or pellets using coal...

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coal based slrn direct reduction process

coal based reduction lump iron sl rn slrn process dri pdf - medi-zonecoza 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....

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