Raw material to sponge iron making in kilns

Raw material to sponge iron making in kilns

Coal : The most critical raw material for sponge iron making. Process requirement Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a ‘select’ grade of non-coking coal and little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the

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  • SPONGE IRON PRODUCTION FROM ORE -COAL SPONGE IRON PRODUCTION FROM ORE -COAL

    Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns. The material bed in Tunnel kiln being stationary, it does not require high

  • Energy Audit Methodology of Sponge Iron Energy Audit Methodology of Sponge Iron

    Raw material mix-iron 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 and secondary airs are supplied to the Kiln to initiate the combustion and reaction processes. The reaction takes

  • Sponge iron from magnetite - A novel process developed in Sponge iron from magnetite - A novel process developed in

    2 days ago Along with it Sponge Iron, one of the essential raw materials used in steel productions, is bound to have a growing domestic demand. Accompanied by rising

  • Accretion Control in Sponge Iron Production Kiln using Accretion Control in Sponge Iron Production Kiln using

    2.3 SPONGE IRON PRODUCTION PROCESS PARAMETERS Kiln performance is influenced by many parameters which include temperature, kiln pressure, kiln inclination and speed, raw material characteristics, feed rate and burden composition, coal slinging and heat transfer, kiln gas atmosphere, quantity of char in the kiln discharge

  • Sponge Iron from Magnetite – A Novel Process Developed Sponge Iron from Magnetite – A Novel Process Developed

    Oct 12, 2021 Sponge Iron production usually employs the DRI Process, undertaking solid state reduction of hematite ores with equal proportions of coal. This is brought about by the use of a coal fired Rotary Kiln, with the environmental impact of the entire process putting Sponge Iron plants under ‘Red Category’ industries

  • New Sponge Iron Rotary Kiln Design In Sponge Iron New Sponge Iron Rotary Kiln Design In Sponge Iron

    Sep 10, 2020 In the newly designed sponge iron rotary kiln system, a coarse coal branch pipe and fine coal branch pipe are added at the kiln head. The original way of adding 100% coal at the kiln head is changed to 50-70% coal is added together with fine iron ore and dolomite through the mixing mode at the kiln tail, and the remaining 30-50% coal is added

  • Iron and Steel Making Machines - Electric Arc Furnace Iron and Steel Making Machines - Electric Arc Furnace

    Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because, while the input raw material gets just about 24hours for the reaction, the figures almost reverse in case of the Tunnel Kiln

  • Extracting More Sponge Iron Is Imperative To Boost Steel Extracting More Sponge Iron Is Imperative To Boost Steel

    Sep 29, 2019 The total capacity is reported to be about 11MT of sponge iron; in Chhattisgarh 4.5 MT, followed by 2.2 MT in Odisha and 1.6 MT in West Bengal. In India, most of the sponge iron producers do not have captive mines of any of the raw materials like hematite, non-coking coal and limestone, which are used for sponge iron production

  • (PDF) " A study on the accretion formation in DRI kilns (PDF) " A study on the accretion formation in DRI kilns

    IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE) e-ISSN: 2278-1684,p-ISSN: 2320-334X, Volume 12, Issue 6 Ver. V (Nov. - Dec. 2015), PP 98-103 www.iosrjournals.org “A study on the accretion formation in DRI kilns and possible ways for its reduction” Ms.Anjali Singh, Mr.Prabhas Jain Barkatullah university institute of Ttechnology ,bhopal Barkatullah university institute of

  • A Thesis Submitted for Partial Fulfillment of the Degree A Thesis Submitted for Partial Fulfillment of the Degree

    1.1 Image of a Sponge Iron Granule 2 1.2 Microscopic view of sponge iron 4 3.1 Material Balance in a Rotary Kiln sponge iron plant 14 3.2 Energy Balance in a Rotary Kiln sponge based iron making 14 3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24

  • Effluent and Emission Standards for Sponge Iron Plant Effluent and Emission Standards for Sponge Iron Plant

    Aug 07, 2021 The Sponge Iron Plant are free to explore other options/ possibilities to use char for generation of power. Char can be sold to local entrepreneurs for making coal briquettes. It can also be mixed with coal fines, converted to briquettes and used in brick kilns

  • US2754197A - Method and a rotary kiln for the manufacture US2754197A - Method and a rotary kiln for the manufacture

    US2754197A US311593A US31159352A US2754197A US 2754197 A US2754197 A US 2754197A US 311593 A US311593 A US 311593A US 31159352 A US31159352 A US 31159352A US 2754197 A US2754197 A US 2754197A Authority US United States Prior art keywords kiln iron air rotary kiln sponge iron Prior art date 1952-09-26 Legal status (The legal status is an assumption and is not a

  • SPONGE IRON PLANT SPONGE IRON PLANT

    RAW MATERIAL General 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 production can be classified into:

  • Sponge Iron - an overview | ScienceDirect Topics Sponge Iron - an overview | ScienceDirect Topics

    DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of

  • Sponge Iron - Sambhv Steel Sponge Iron - Sambhv Steel

    Jun 19, 2021 The material used is iron ores lumps/pellets, Coal and Dolomite. The direct reduced iron process is done in a rotary kiln at a temperature of around 850 ᵒ C- 1050 ᵒ C. Supply. Sponge Iron is supplied in lumps or as fines in HDPE bags

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