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The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron .
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 ...
The direct reduction process uses palletized iron or natural 'lump' ore. Process. Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a 'select' grade of iron-coking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before ...
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 ...
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.
Oct 10, 2019· Sometimes known as direct-reduced 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 that is created by the use of a reducing gas that emits from coal or a natural gas source. This type of iron can be produced in several different types of furnaces, including coke or charcoal ovens, .
outlook of the iron ore mining regions in particular and India in general will become pastoral with such investments. Use of pellets to manufacture sponge iron All most all the coal based sponge iron plants use iron ore lumps. The requirement is generally 1.8 t/ t of sponge iron. This high requirement is mainly due to the fines generated in
Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 500 TPD) Solid state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI).
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 5-20mm can be used in all coal based rotary kiln processes.
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 K.Ramu, C.Ramesh, A.Rajasekaran During the process of manufacture of sponge iron, coal injection plays a v... IRON ORE & MGM IRON ORE .
Sizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of Iron ore, MPS (Mean particle size), its physical properties like T.I., A.I. & chemical properties like Fe (T), LOI, gangue content In Sponge Iron Process, two types of coal are being used such as feed coal and injection coal.
Direct Reduced Iron Technology and Status of Industrial Application Wolfgang R. Schütze ... of industrial plants for the hot briquetting of direct reduced iron went into operation. Ad- ... Pellets and lump ore (gas based reduction) Pelletized fine ore (coal based reduction) Figure 9: Cross sections through briquettes made with material from ...
Sponge iron is a highly processed form of iron ore which contains metallic iron in the range of 83-88% 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 .
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.
make sponge iron from coal and iron ore process. who make sponge iron from coal and iron ore process. Your daily source of the latest news on base & industrial metalsCopper, Aluminum, Nickel, Zinc, Lead, world markets and base metals mining. who make sponge iron from coal and iron ore process .
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 ore.This process is adopted by worldwide conventional sponge iron industries.
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.
Now a days,sponge iron is a name in steel making process.There are different methods to manufacture sponge iron but in India largely coal based process are carried out.In this process ...
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 .
The process of DRI or sponge Iron making can be classified into different categories as given below: (A) Rotary Klin Process Rotary Kiln method is very important for sponge iron production using non-coking coal as a reluctant. The Iron ore is charged from one end with non-coking coal which is in the lump form or pellets and heated from
Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel. Indeed, it has been argued that iron ore is "more integral to the global economy than any other commodity, except perhaps oil".
Dec 14, 2013· Direct reduced iron (DRI) is also known as sponge iron. It is produced by the reduction of iron ore (in the form of lumps or pellets) by either non-coking coal or a reducing gas produced by reforming of natural gas. The reducing gas can also be produced by the gasification of coal.
The basic raw materials for the production of sponge iron are iron ore, non coking coal and dolomite. Iron Ore: Iron ore is the source of iron and available in oxide form namely hematite(Fe2O3). As only oxygen can be removed from the iron ore during the process of making sponge iron iron,ores rich in iron content of 65percent and above is ...
Sometimes known as direct-reduced 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 ...
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