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The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of process is adopted by worldwide conventional sponge iron industries.
Jul 29, 2010· All the Sponge Iron processes are very sensitive to the physical an chemical characteristics of raw materials. Extensive testing is required for evaluating the suitability of these raw materials for the manufacture of Sponge Iron. Iron Ore: Lump iron ore in the size range of 520mm can be used in all coal based rotary kiln processes.
Most of the plants in India use DRI process—a solid state direct reduction process by which iron ore is reduced to sponge without phase change (Figure 1). Raw material mixiron ore, dolomite and coal are fed to one end of rotary Kiln and product sponge iron along with char is taken out from the other end. Apart from this, primary
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. .
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.
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 your opinion .
The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and NonCoking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron .
why we are use wash coal in sponge iron – Grinding Mill China. Direct reduced iron – Wikipedia, the free encyclopedia Directreduced iron (DRI), also called sponge iron is produced from direct . in various parts of the world . »More detailed
The direct reduction process uses palletized iron or natural ''lump'' ore. Process. Sponge iron making is a process in which iron ore lumps (typically 5mm18mm size) are tumbled with a ''select'' grade of ironcoking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before ...
Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using calibrated ore and non coking coal. However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process.
Sponge Iron Plant. The major raw materials required for production of sponge iron by the rotary kiln process are sized graded iron ore and noncoking coal limestone in small quantities is also required to scavenge the sulphur iron ore the quality requirement of sized ore for. Oline Chat
Iron Ore: In sponge iron making, iron ore is reduced in solid state. Unlike in the conventional steel melting processes, the gangue content of iron ore cannot be separated as a slag. Therefore, it becomes imperative to select an ore with a high Fe content and a low .
Grain Size of Sponge Iron: Induction furnaces users always prefer to use fines of sponge iron (Coal Based sponge iron in sizes from 2mm to 5mm) than lumps as fines give better yield and hence less power consumption. So good sponge iron manufactures always try to use iron ore in the size of 5mm to 12 mm, which gives better quality sponge iron.
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 by a reducing gas or elemental carbon ...
Sponge iron is a highly processed form of iron ore which contains metallic iron in the range of 8388% obtained by direct reduction without melting it. Due to high porosity, the resulting iron is called sponge iron. It is used as a raw material for manufacturing steel .
How to use magnetite iron ore to make sponge iron in coal, the idea of the process of how to make sponge iron from iron ore is basically to add coal to remove oxygen from iron by adding non coking coal and to remove sulfur by adding lime stone, the iron ore and coal are crushed in crushers and screened to the recommended sizes (5mm mm ...
coal in the process of iron ore lejardindecrespieres be. make sponge iron from coal and iron ore process Sponge Iron WELSPUN STEEL LIMITED When the desired temp is reached Iron ore coal lime stone or dolomite are fed Now the coal if the desired temp for reduction process is obtained iron ore with This Co2 reacts with carbon from coal. Get price
Aug 30, 2013· IRON ORE MGM IRON ORE Iron ores are rocks minerals from which metallic iron can be extracted. types of iron ore. a) oxide ores ... COAL INJECTION IN ROTARY KILN,, During the process of manufacture of sponge iron, coal injection plays a v... IRON ORE MGM IRON ORE .
Sometimes known as directreduced iron, sponge iron is a product that is produced using iron ore. The iron ore is often in the form of pellets or lumps, and is subjected to a reduction process ...
sponge iron ore beneficiation christoartfair. Iron ore pellets and Pelletizing processes ispatguru. Iron ore pellets and Pelletizing processes. Pelletizing is a process that involves mixing very finely ground
sponge iron from magnetite iron ore How to use magnetite iron ore to make sponge iron in coal . the idea of the process of how to make sponge iron from iron ore is basically to add coal to remove oxygen from iron by adding non coking coal and to remove sulfur by adding lime stone, the iron ore and coal are crushed in crushers and screened to the recommended sizes (5mm mm), then mixed and ...
Mar 16, 2013· Fig 1 DRI process principle. Major DRI production processes are either gas based or coal based. Feed material in a DRI process is either iron ore sized to 10 to 30mm or iron ore pellets produced in an iron ore pellet plant. In the gas based plant the reactor, the reduction reaction takes place is a shaft furnace.
Iron making. Iron ore is mined in around 50 countries – the largest producers are Australia, Brazil and China. Around 98% of iron ore is used in steelmaking. During the ironmaking process, a blast furnace is fed with the iron ore, coke and small quantities of fluxes (minerals, such as limestone, which are used to collect impurities).
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.
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