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Electrotherm E&T is the foremost manufacturer of Coal Based Rotary Kiln for Sponge Iron 100 TPD 350 TPD Download Rotary Kiln PDF to get more product information The quantity of coal feed is adjusted to get the required degree of production and to sustain the process Adjustment of coal quantity can be done from the ends of the reactor
·Greenfield project for a DRI based Steel plant to produce Sponge Iron 198 000TPA; Mild Steel Billets 345 800TPA; Rerolled Steel Products through Hot Charging and through Reheating Fur nace 342 144TPA; Ferro Alloys 35 000 TPA and/ or Pig iron 70 000 TPA from 9 MVA x 2Nos
·The process integration principles are applied to conserve energy in Option 1 and Option 2 For Option 1 MW power is generated using heat of waste gas which gives payback period as years
Direct reduction iron or sponge iron is an old method for producing hydrogen Milne et al 2006; Peña et al 2010; Biljetina and Tarman 1981 that was replaced by more efficient and economic the interest in sponge iron as a hydrogen production process has grown again although the technology still has some major technical and economic challenges to
·Smelting Reduction Figure 2 The smelt reduction vessel SRV is the core technology component of the Hismelt process Source RioTinto While years of ironmaking technology innovations have optimized blast furnace productivity two alternative processes—smelting reduction and direct iron reduction— are growing in adoption The
·The process flow diagram PFD of the sponge iron process is shown in Fig 1 Different streams in the PFD are assigned individual number and henceforth each stream will be referred through its respective number Detailed operation of this plant is discussed in the work of Prasad et al [2011] The operating parameters for this process
Iron sponge process An example of a hydrogen sulfide scavenger process is the iron sponge process also called the dry box process which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids Anerousis and Whitman 1984 The process was implemented during the 19th century and
6 ·The procedure of sponge iron making aims to expel the oxygen from iron ore It is produced by direct reduction of iron ore in solid state either by reducing gas or non coking coal at 1000 1050 °C The resulting iron is highly porous in nature and hence the name sponge iron
·India is the world s largest producer of sponge iron accounting for 13 per cent of the global production 8 Sponge iron is produced using either coal or natural gas Since coal is available in India the sector largely depends on coal based sponge iron which contributes about 80 per cent of the total capacity in the country9
·is seen that the growth of sponge iron industry in last few years is unremarkable and today India is the largest producer of sponge iron as it covers 16% of global output According to Sponge Iron Manufacturers Association [1] India has produced around 23 million tonnes of sponge iron in the financial year of 2009 2010 Sponge
·A new route for making steel from iron ore based on the use of hydrogen to reduce iron oxides is presented detailed and analyzed The main advantage of this steelmaking route is the dramatic reduction 90% off in CO2 emissions compared to those of the current standard blast furnace route The first process of the route is the production of hydrogen by
·Sponge iron is produced by low temperature reduction of iron ore in a rotary furnace shaft furnace or reactor Since the reduction temperature is lower than the melting temperature of the ore the iron ore still maintains the shape of the ore after solid state reduction and has a porous and low density sponge like structure hence the name
·Review of Sponge Iron Making Process Historical Development Sponge iron was the main source of iron for many centuries before the blast furnace technology of iron making got developed During that time sponge iron was developed in shallow hearths using charcoal which worked both as reductant and fuel
·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
Energy Efficiency 2011 4 321 333 DOI /s12053 011 9108 8 Development of energy conservations scenarios for sponge iron industry using process integration Anil K Prasad & Radha K Prasad & Shabina Khanam Received 20 March 2010 / Accepted 3 January 2011 / Published online 16 January 2011 # Springer Science Business Media 2011 Abstract
·The BOS process uses pure oxygen injected by a lance for refining the relatively impure hot metal and scrap is used for temperature control The electric arc furnace uses primarily electrical energy to supply heat to melt scrap steel sponge iron or mixtures of scrap and other iron units Compared to the BOS process the EAF requires
·Data 1 includes temperatures profiles and air inlet at positions AT 1 to AT 3 and MF 1 and MF 2 inside the kiln whereas flow rates of iron ore feed coal slinger coal and sponge iron is
·Present work deals with two design modifications proposed for sponge iron plant First design accounts for preheating of kiln air using waste gas exiting from ESP For second design water is heated using hot sponge iron to preheat rotary kiln air A model is developed to compute coal demand of process based on different factors For each modification economic
·Making an iron rich porous slag sponge iron Iron/Carbon Phase Diagram Iron shows a eutectic with Carbon allowing for a lower melting alloy Body Centered Tetragonal 6 7 8 Carbon content can be reduced Process annealing A process used to relieve stress in a cold worked carbon
·Raw material utilization and waste generation for the DRI suggest that tonnes of ore tonnes of non coking coal and tonnes of dolomite are needed to produce 1 tonne of sponge iron and tonnes of solid wastes [2 5] This implies that for every 10 tonnes of sponge iron produced almost 2 tonnes of solid wastes are produced in the form of semi
The Iron Sponge Process a technology used for removing hydrogen sulphide H2S from biogas can potentially use various biodegradable wastes as the supporting material for the H2S adsorption media providing improved flexibility and cost effectiveness In this study ground garden waste digested garden waste and spent tobacco were evaluated as supporting
Midrex Process Midrex is the most successful gas based DR process; it is a continuous process It is basically a countercurrent process where a hot and highly reducing gas 95vol % of this gas mixture being hydrogen and carbon monoxide with a ratio of H 2 CO varying from to reduces lump iron ore or pellets to metallic iron as the metallic charge descends through
·The Iron Age began when the humans probably by chance discovered iron sponge when they were heating iron ores that were easily reduced paid to achieve both an incomplete combustion and a reductant environment in the furnace favoring the formation of the sponge iron which after the forging process had the following approximate chemical
·Sponge iron powder The Höganäs process is a direct reduction method for production of sponge iron powder using magnetite ore Fe3O4 and carbon as raw materials The reduction process takes place in a gas fired tunnel kiln at around 1200°C for 60 hours producing a sponge iron cake that is crushed milled and
