In HIsarna ironmaking process, iron ore is processed almost directly into liquid iron or hot metal The process is based around a type of blast furnace called a cyclone converter furnace, which makes it possible to skip the process of manufacturing pig iron pellets that is necessary for the basic oxygen steelmaking process
Iron - Manufacturing process related to the specified manufacture(s) December 2013 update: addition of new processes description and some modifications Related manufacture(s) Description of manufacturing process M-1: Iron Powders (Iron Powder made by sponge iron process, atomization processes (gas and water) and electrolysis)
DRI is also known as sponge iron, it is a solid-state direct reduction process (Fig 26) Coal, dolomite and iron ore or pellets are fed into one end of a rotary kiln, while sponge iron and char are withdrawn from the other end Primary and secondary airs are supplied to the kiln to initiate combustion and reaction processes (Choudhury, 2014 .
the sponge iron The reduction process consists of two procedures, which are primary reduction (solid carbon reduction) and secondary reduction The primary procedure mainly includes: (iron ore, rolled steel scales, etc) → Drying → Magnetic Separation → Crushing → Sieving → Canning → Entering Primary Reduction Furnace → Sponge Iron
Dear All, We are Implementing for Sponge Iron and Billet Manufacturing Industries, both are in different Plants I have few questions with respect to this 1 In Sponge Iron they have 3 kiln and they want separate Production order for each kiln, the k
Risk appraisal: Sponge iron plants Cerana Foundation, Oct 2006 6 Visible air pollution from point and area sources from sponge iron plants around Raigarh Solid waste dumps at sponge iron plants 3 Documented data Meteorology The meteorology of the area is summarized below The area has hot summers and cool winters
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
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 TI, AI & 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
Study on Accretion Formation on DRI kiln during spong iron production Chandrashekhar shrivas, Himanshu shrivas Abstract---Today is an era of competition, and contrary to this the Iron and steel industries are also suffering from the same One of the major challenges for sponge iron plant is the Accretion formation Through this
SEML was one of the first companies to install a sponge iron plant in the Siltara, Raipur area Sponge Iron or Direct Reduced Iron is produced by reducing Iron Ore (in the form of lumps/pellets) using non-coking coal in a rotary kiln The coal acts as the fuel as well as a reducing agent & Oxygen is removed from the Ore to produce Sponge Iron
Manufacturing process of Ductile Pipes by the process of Casting , In this report, you will get a brief idea about the manufacturing process of Ductile Iron Pipes that utilizes the process “casting” for its manufacture You will also get an idea about the materials used for the pipes, the machines involved, the tools required, quality .
Jul 29, 2010· We are the largest producer of sponge iron using non coking coal as a reductant and and are having the largest coal based plant in the world We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering
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
Iron sponge is a highly porous, coarsely powdered or granular form of iron metal with numerous applications in catalysis, gas purification, and alloy production Additional technical, research and safety (MSDS) information is available
Mar 01, 2019· Manufacturing Process Titanium is manufactured using what is known as the Kroll process It involves the extraction, purification, sponge purification, alloy creation, and forming and shaping, which is only a brief overview of the entire process At the beginning of the manufacturing process, the manufacturer receives the concentrates from the .
sponge iron, originating from Iron Ore, namely, silica and alumina and the sulphur and phosphorous contents adversely affect the economics in subsequent steel making operation Therefore, the ore should be high in iron content and low in , MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the
Table of ContentsElectric Furnace Production of Pig SteelMaking Pig Iron by Electric Furnace Regulation of CarbonPig Iron ImpuritiesLoss of Iron in the SlagAdaptability of the Process to Continuous OperationCost of Production of Pig IronPig Iron At the beginning of the use of the electric furnace, for the manufacture of calcium carbide and ferro-alloys, experimental work ,
sponge iron plants is found to be mushroomed at Badbil-Joda area (12) Jharsuguda district contain 10% (13) sponge iron plant of state followed by sambalpur 9% (10) District like Dhenkanal, jajpur , Anugul and Cuttack followed the top four district with Fig:3 showing Distribution of sponge iron plants in orissa
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 the products are air cooled, magnetically separated, screened and size wise in finished .
Nov 12, 2012· HAND BOOK OF SPONGE IRON MAKING IN ROTARY KILNS , Books about HAND BOOK OF SPONGE IRON MAKING IN ROTARY KILNS BY P C PRADHANDownload free books online: share with friends any PDF ebook on hand book of sponge iron , »More detailed
Energy integration of sponge iron production process , Indian sponge iron process of capacity 100 tpd is considered , Many investigators considered the process of sponge iron manufacturing and recommended improvement in that [1, 2, 3 and 4] It is found that during the operation in the coal
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 oreThis process is adopted by worldwide conventional sponge iron industri
Dec 24, 2018· Direct reduced iron (DRI), also called sponge iron, is produced from the direct reductionof iron ore (in the form of lumps, pellets, or fines) to iron ,
sponge iron manufacturing process or kiln operation with a view to finding out major energy sav-ing potential of the unit In the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process Substantial amount ,
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
A process of manufacturing a sponge iron with low sulphur content by depositing a charge made up of superposed layers of finely divided material on a moving hearth, at least one of the layers being substantially made up of iron oxides and at least another of the layers being made up of a mix of a solid reducing agent containing carbon and a desulphurizing agent, heating ,
Sponge manufacturing produces no harmful byproducts and little waste Sponge material that is lost in trimming, such as when an uneven end is cut off the large block, is ground up and recycled It can be thrown in the mixer at the beginning of the process, and become part of a new sponge
Dec 30, 2016· Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state It is a substitute for scrap and is mainly used in making steel through the secondary route The process of sponge iron making aims to remove the o.
i) Direct Reduced Iron: Production , This product is known as direct reduced iron (DRI) or sponge iron Processes that produce iron by reduction of iron ,
Iron Sponge Process The iron sponge process uses the chemical reaction of ferric oxide with H2S to sweeten gas streams This process is applied to gases with low H2S concentrations (300 ppm) operating at low to moderate pressures (50-500 psig)