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the local iron ore raw materials are still many impurities which would lead to lower levels of iron in the material standard so that the standard product manufacture sponge iron will be difficult to achieve if there are impurities in the raw materials. The following are steps in the process for the processing of iron ore to sponge iron.
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Dec 14, 2013018332Direct Reduced Iron. 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 reducing gas is normally a mixture.
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Aug 07, 2016018332 Sponge iron produced by the process will be the high grade which contains 80 Fe, 12 FeO and 8 gangue material. After separation of sponge iron in the magnetic screenpulley, the remains are collected as char. Char has good amount of fixed carbon 25 - 30 and moderate GCV 2500 - 2600 KcalKg.
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Oct 25, 2013018332Coal gasification-based sponge iron plant of Jindal Steel amp Power Ltd in Angul, Odisha, may become a game changer in the coming years. This plant is likely to be commissioned in 2013. Cost of syn gas and efficient running of gasifiers will be the key of success of this promising sponge iron process
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coal based sponge iron process - . Sponge iron 1 Process 2 Problems 3 History 3.1 Use of sponge iron 4 See also 5 .various parts of the world through either natural gas or coal-based . learn more Sponge Iron DRI The Hira Group. Sponge Iron is a substitute of scrap in steel melting.
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Coal-based sponge iron process The process of the direct reduction of haematite in a rotary kiln is schematically described in the Fig. 1. Haematite and non-coking coal are fed to the kiln at controlled rates without pre-mixing and the charge moves through the kiln depending upon the rotation
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Oct 10, 2017018332Natural or direct shipping iron ores contain between 50-70 iron and can be fed directly into the blast furnace. Fe 3 O 4 decomposes when heated to ferrous oxide FeO and ferric oxide Fe 2 O 3 via Fe 3 O 4 FeO Fe 2 O 3. A specialized type of coal, called hard coal, is used to make coke, a porous form of carbon.
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2011-5-19 183 based sponge iron plant in a single location in India. It is used mainly for internal consumption. Ispat industries also has a sponge iron making capacity of 1.6 million tonnes. Outlook Sponge iron can be used along with normal coal in the electric arc furnace and can be used as hedge against the volatile price move-
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Sponge iron plants of 350TPD coal based rotarykilns 1 05 000 tons per annum capacity 2nos We procure coal from MahanadhiCoal Ltd and imported coal from South AfricaIndonesia As the coal received is of 0to 250mm size in case of MCL coal and 0-50mm in case of imported coal we have installed crushing and screening facility for the coal
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1. Energy saving reduction in consumption of coal in blast furnaces The use of DRI as blast furnace feed enables reduction in coal consumption in blast furnaces. When 100 kg of DRI is used for the production of 1 ton of molten iron, the consumption of coal in blast furnaces will be reduced by 50 - 60 kg. 2. Reduction in CO2 emission
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Sep 01, 2015018332The actual process of the coal based sponge iron production is based on SLRN 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.
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cost of sponge iron plant in indonesia pdf. Rotary Kiln Process of Making Sponge Iron - New Age International. hydrocarbon fuel and over-bed air in a rotary reactor. Fig. 2.4 Essential features of a reduction kiln in a rotary kiln sponge iron plant. Air. Fine coal. Sponge iron . Indias sponge iron production is accounted for by the three gas ...
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al based sponge iron process - stanstrizkov.cz. Energy survey of the coal based sponge iron industry ... 1-9-2015 The actual process of the coal based sponge iron production is based on SLRN 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 ...
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be broadly classied into two groups 1 coal-based DR proces s and 2 gas-based DR process. Details of DR processes, reoxidation, storage, tran sportation, and application of DRI are discussed in
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originally developed as an alternative to gas-based DRI, making DRI from iron-ore and coal. The process, however, has a drawback the DRI produced may have a decreased iron content andor increased sulfur content, depending on the quality of the coal used. This impedes the commercial use of the process for producing DRI from iron ore.
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Steel manufacturing Company in India, JSPL has worlds largest Coal-based Sponge Iron manufacturing facility at Raigarh, Chhattisgarh with capacity of 1.37 MTPA.
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brief process of coal based sponge iron rotary kiln manufacturer in Shanghai, China. brief process of coal based sponge iron rotary kiln is manufactured from Shanghai Xuanshi,It is the main mineral processing solutions. XSM stone crushing machine project-brief process of coal based sponge iron
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manufacturing process of high stability sponge iron briquette machine in lesotho. Our products includes five series crusher, sand making machine, powder grinding mill, mineral processing equipment and building materials equipment.Our leading products have crushing equipment, sand making equipment, mobile crusher, etc.,
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Sponge Iron Rotary Kiln Image. The coal base DRI rotary kiln process for production of DRI Sponge Iron has its many parameters to increase the quality as well as productivity which need careful operations throughout the process Number of DRI processes came up and rotary kiln process with solid coal as fuel found to be most acceptable process in the world
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Corex enables the cost-efficient and environmentally friendly production of hot metal from iron ore and coal. In the Corex process, all metallurgical work is carried out in two separate process reactors the reduction shaft and the melter gasifier. Since coking and sintering plants are not required for the Corex process, substantial cost ...
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Hydrogen-based metallurgical process In the HYBRIT- concept, specially developed iron ore pellets are reduced by hydrogen gas in a so-called direct reduction process. Reduction occurs in a solid state at a lower temperature than in the blast furnace process and produces an intermediate product, sponge iron or direct reduced iron DRI, with ...
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Lack of coal during the reduction process resulted in oxidation of iron phases Usui et al., 2004. Chander and Sharma 2007 showed that iron reduction to hematite slowed the nickel diffusion process, while that of wustite accelerated it. The research reported here was conducted to investigate the effects of particle size, reduction ...
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The process of reduction of iron ore pellets carried out at a temperature of 950 - 1200176C in a rotary kiln using pulverized burner modified UPT. Balai Pengolahan Mineral Lampung LIPI UPT. BPML - LIPI, which has been patented and established as one of the outcomes Innovator in 2010 fueled local coal and other sources of energy based on biomass.
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Recovery and utilization of waste heat in a coal based sponge iron process. The present work is an attempt to conserve energy in coal based sponge iron industry incorporating certain design modifications without disturbing the process technology. A typical sponge iron plant has been investigated to find out the potential areas where energy is ...
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