sponge iron roller kiln reduction technology

Accretion Control in Sponge Iron Production Kiln using

2 KILN BASED SPONGE IRON PRODUCTION PROCESS Rotary kilns are found in many processes that involve processing of solids This study focuses on sponge iron kiln based process The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal Patra et al 2005 The...

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tunnel kiln iron oretunnel kiln iron ore reduction

Process Of Iron Reduction In Tunnel Kiln And Rotary Kiln Reduction of iron ore briquettes into dri in the tunnel goodrich offers third generation tunnel kiln process from china to convert soft iron ore lumps or briquetted iron ore fines into direct reduced iron dri dri or sponge iron is a highquality metallic product and used as a feedstock in the induction furnace electric arc furnace...

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By this time the iron ore comes to the inlet end of the main kiln the temperature of the iron ore reaches about 550 degree centigrade to 600 degree centigrade With the introduction of preheating kiln for utilising the sensible heat in the kiln off gases for the following benefits could be acheived 10-15 reduction in coal consumption...

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sponge iron process

Jul 29 2010 0183 32 In general the gangue content in sponge iron varies from 4 to 8 Carbon content 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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PDF i Direct Reduced Iron Production

This product is known as direct reduced iron DRI or sponge iron Processes that produce iron by reduction of iron ore in solid state below the melting point are generally classified as DR...

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Some Studies on Energy Savings in Sponge Iron Plants

Aug 29 2003 0183 32 This paper presents the potential for energy savings in various capacity sponge iron plants by estimating heat transfer rates using stabilized and optimized temperature data within the rotary kiln/reactor Process Characteristics and Industrial Application of Rotary Kiln Iron Ore Reduction Technology from Lurgi at ISCOR 1983...

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New Technology Tunnel Kiln to make Sponge Iron / DRI in

Nov 22 2011 0183 32 CASE Group has set up India s first DRI / Sponge Iron unit using Tunnel Kiln The Kiln which is 194m in length is the longest in India was successfully fired on 20/11/2011 at MTPL Wardha...

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Tunnel Kiln Technology

Main Feature Of Rapid Reduction Technology To Compare With Traditional Tunnel Kiln Technology 1 Not chang formula and method of loading and unloading 2 Reduction speed 2-3 times faster 3 Lower 1/3 reducer consumption 4 Lower 1/3 energy consumption 5 Recycle coking coal from tailing powder Picture Of Products Prepressing Sponge Iron...

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STUDY ON REDUCTION OF IRON ORE CONCENTRATE IN ROTARY KILN

In this reduction process of iron oxide would be reduced by CO to metallic iron Fe The experimental results showed that the metallization without oxygen injection produced the best metallization at 1 100 176 C and the ratio of carbon/iron FC/Fe of 052 to result 8454 contained 7468 Fe and 8834 Fe total...

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SPONGE IRON PRODUCTION FROM ORE

Keywords Tunnel Kiln Iron ore-coal composite pellets Sponge iron Thermal efficiency Carbon utilization efficiency Percentage metallic iron 1 INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products 1-2 In the year 1908 use of tunnel kiln started for iron oxide reduction This...

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STUDY ON REDUCTION OF IRON ORE CONCENTRATE IN

STUDY ON REDUCTION OF IRON ORE CONCENTRATE IN ROTARY KILN TO PRODUCE DIRECT REDUCED IRON STUDI REDUKSI KONSENTRAT BIJIH BESI DALAM TUNGKU PUTAR MENGHASILKAN DIRECT REDUCED IRON NURYADI SALEH and SITI ROCHANI Research and Development Centre for Mineral and Coal Technology Jalan Jenderal Sudirman 623 Bandung 40211...

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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 SL/RN technology is a coal based rotary kiln direct reduction process The sponge iron kilns give off hot gases rich in carbon di-oxide WSL has...

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Rotary Kiln Maintenance Procedures

Rotary Kiln Maintenance Procedures State of the Art Rotary Kiln Maintenance Technology 5078 Bristol Industrial Way Bldg 100 Buford GA 30518 Phone 770 831-8229 Fax 770 831-3357...

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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 coalMany 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...

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Simulation of Rotary Kiln Used in Sponge Iron Process

out The role of kiln is to convert the raw material iron ore coal and dolomite into the sponge iron 8 Detail reaction mechanism of the process is discussed below There are two reduction reactions First reaction converts iron ore to iron oxide which further reacts with CO to produce metallic iron Fe which is called sponge iron...

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Flow of materials in rotary kilns used for sponge iron

Looking forward to the need of developing coal-based sponge iron technology in India a country having no significant resources of either coking coal or natural gas the Research and Development Division of the Tata Iron and Steel Company Limited TISCO set up a rotary kiln based direct reduction pilot plant in 1975 In this pilot plant a totally indigenous technology for production of...

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German Kiln Technology Tunnel kilns

German Kiln Technology An der Buschdorfer Burg 73 D-53117 Bonn Cell 49 0 160 90 27 81 45 Tel 49 0 228 90 91 92 1 Fax 49 0 228 90 91 92 3...

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2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

2 D Model of Sponge Iron Rotary Kiln Developed Using CFD Gajendra Kumar Gaurav and Shabina Khanam Research Scholar and Assistant professor Department of Chemical Engineering Indian Institute of Technology Roorkee Roorkee - 247 667 India _____ Abstract The present paper deals with 2D CFD model of rotary kilns employed in sponge iron process...

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Types of Sponge Iron Technology

Types of Sponge Iron Technology GAS BASED SPONGE IRON TECHNOLOGY The gas based process works on counter current principle The gases pass through the solid charge The solid charge is rotated in a vertical kiln and gas passes through the charge Heat is provided for reduction reaction and carbon is converted into carbon monoxide...

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Direct Reduction Technologies SAIL

Direct reduction processes are of significance and can form an alternative to a conventional Blast furnace Solid sponge iron direct reduced iron or DRI is produced by removing oxygen from the ore The technique of Direct reduction varies according to the type of reducing agents employed and the metallurgical vessel in which they are reduced...

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Heat and Mass Transfer in Reduction Zone of Sponge Iron

Numerical prediction is performed on reduction zone of iron ore reactor which is a part of counter current gas-solid reactor for producing sponge iron The aim of the present study is to investigate the effect of reduction gas composition and temperature on quality and capacity of sponge iron products through mathematical modeling arrangement and simulation...

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German Kiln Technology Technical ceramics

German Kiln Technology GKT is a major supplier of sintering lines and kilns for producing all kinds of technical ceramics such as For the firing process GKT offers the most diverse selection of equipment dependant on capacity and procedure operating electrically or with fossil fuels...

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New Concept of Hot Metal Production using Rotary Kiln

The idea of this technology is to utilize the heat or energy contained in sponge iron temperature of sponge iron >1000 o C at the end of rotary kiln before it is cooled by rotary cooler to...

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reduction iron kiln reduction iron kiln Suppliers and

Alibaba offers 1 673 reduction iron kiln products A wide variety of reduction iron kiln options are available to you such as warranty of core components local service location and key selling points...

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PDF Rotary Kiln Manufacture Gary Li

Dajia rotary kiln and sponge iron rotary kiln has been developed for performing drying calcination and sintering work in a continuous process Widely used for cement pet coke calcination dolomite bauxite sponge iron and other materials it uses hot gases for the operation...

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