Mar 11, 2016· The presentation gives features, properties and various details of direct reduced iron
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DRI is also known as sponge iron, it is a solid-state direct reduction process (Fig 26) Coal, dolomite and iron ore or pellets are fed into one end of a rotary kiln, while sponge iron and char are withdrawn from the other end Primary and secondary airs are supplied to the kiln to initiate combustion and reaction processes (Choudhury, 2014 .
Sponge Iron Production By Direct Reduction Of Iron Oxide This book provides a fascinating study of the very important emerging field of direct reduction in which iron ore is 'directly reduced' in the solidstate, using either natural gas or noncoking coal, to produce a highly metallised material, referred to as sponge iron (or direct reduced iron)
Direct Reduced Iron (DRI) is the product of the direct reduction of iron ore in the solid state by carbon monoxide and hydrogen derived from natural gas or coal See more information about the production of ,
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 The process of sponge iron making aims to remove the oxygen from iron ore
Dec 19, 2017· India is the world's largest producer of sponge iron, most of which is produced primarily through the coal based method of production Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route,.
As of 2015, the volume of direct-reduced iron production in Egypt was 245 million metric tons The entire mining sector of Egypt generated a value of 327 billion Egyptian pounds to the GDP of the .
This book provides a fascinating study of the very important emerging field of direct reduction in which iron ore is ‘directly reduced’ in the solid-state, using either natural gas or non-coking coal, to produce a highly metallised material, referred to as sponge iron (or direct reduced iron) This intermediate product is subsequently melted in electric arc furnaces or induction furnaces .
Direct-reduced iron is also known as sponge iron and is sold as briquettes, lumps, or pellets It is typically used in smaller scale steel mills to enhance the condition of the steel that is manufactured During the reduction process in the production of direct reduced iron, either coal or a special gas — commonly containing a combination of .
The original goal was to produce direct reduced iron (in solid state) The SLRN Process : In 1965 the very first DRI developed was the Outokumpu Process by a consortium including STELCO of Canada, Lurgi, Republic Steel (USA) and National Lead, which caused the process to also be commonly known as SLRN This process adapted the conventional .
Iron-process iron making process - YouTube Sep 29, 2012 Sponge iron is not useful by itself, but can be processed to create wrought iron The sponge is removed from the furnace, called a bloomery, and repeatedly beaten with heavy hammers and folded over to remove the slag, oxidise any carbon or carbide and weld the iron together
Table of ContentsProperties and Quality DemandsMetallurgical Test MethodsLKAB Pellets for Direct Reduction The iron ores mined by LKAB in the north of Sweden have excellent beneficiation properti This gives LKAB a favourable position as regards the production of low silica pellets for direct, reduction LKAB have concentrated on developing and marketing grades of pellets for the Midrex .
Dec 02, 2019· As of 2015, the volume of direct-reduced iron production in Egypt was 245 million metric tons The entire mining sector of Egypt generated ,
Direct Reduced Iron (DRI) Production Plant NIPPON STEEL & SUMIKIN ENGINEERING CO, LTD Basic Concept or Summary S-16 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 gas
producing iron with slrn process sponge iron production by direct reduction slrn pdf YouTube Dec 6, 2013 sponge iron production by direct reduction slrn pdf washer machine, vibrating screen, belt conveyor, etc for quarry plant to process iron, gold, Process Description and operational optimization
Mar 07, 2019· No They aren’t The source of both pig iron and sponge iron are iron ore In case of pig iron, the ore is reduced and melt in the blast furnace and the preliminary product is liquid iron, which solidifies to pig iron On the other hand, sponge ir.
for production of iron by different gas These advancements require comprehensive models for better control of the proc ess conditions and the pr oduct properti In the present thesis fundamental aspects in reduction of iron oxide were investigated The experimental studies on reduction of iron oxide pellets were performed under well-controlled
Jul 29, 2010· The Fe total content in sponge iron purely depends on Fe con tent in iron ore and the degree of reduction achieved in the process Fe total content of 90%min is required for steel making requirement Fe metallic: Fe metallic content in sponge iron depends on ,
Direct Reduced Iron (DRI) – International Iron Metallics Association This process of reducing the iron ore in solid form by reducing gases is called direct reduction The conventional route for making steel consists of sintering or
China Group For Reduction Iron Ore Slrn producing iron with slrn process DRI production Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, without melting, as in the blast furnace
Nov 03, 2016· The direct reduction process HBI is the product of reducing iron ore with natural gas This is called the direct reduction process and is an environmentally-friendly production process; a DRI plant uses natural gas which is more environmentally sound than coke The reduction process takes place in the reduction tower
Apr 30, 2011· The key difference between sponge iron and pig iron is that we can produce sponge iron by direct reduction of iron ore through reducing agents whereas the production of pig iron is by melting iron ore with charcoal and limestone at very high pressur Sponge iron and pig iron are different forms of iron that we can produce from iron ores that occurs naturally under the surface of ,
Sponge iron is an intermediate product of steel formed during direct reduction of iron ore with aid of regulated temperatures and pressures within a rotary kiln The greatest
Direct Reduced Iron (DRI) The world market for steel is expected to continue to increase The volume of steel produced by the, now old-fashioned, blast furnace process is already very low and will continue to decline relative to the volume of steel produced by the electric arc process, for which DRI is the raw material The world production
Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials
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 reduction gases only dissolve oxygen from the iron or This causes the iron ores to crack on the surface The appearance resembles a porous sponge, which is why the deoxidized and thus strongly ferrous iron ore is also called sponge iron Sponge iron is a highly ferrous ore from the direct reduced iron ,
reduction 3) Chemical requirements:-- Apart from the removal of oxygen, no other major chemical change takes place in direct reduction The gangue material in sponge iron, originating from Iron Ore, namely, silica and alumina and the sulphur and phosphorous contents adversely
Jan 17, 2017· we are trying to take a look at the sponge iron industrie , how we making sponge iron by coal based if you like please subscribe and comment ,please comment.