sponge iron manufacturing process pdf
- Category:Continuous Rolling Mill Process
- Applications: : SPONGE IRON PLANT MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the reducing agent namely solid Most solid reduction process
sponge iron manufacturing process pdf
SPONGE IRON PLANT
MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the reducing agent namely solid Most solid reduction process use noncoking coal as reducing agent due to abundantly available noncoking coal The process proposed to be adopted is the rotary kiln proposes using Noncoking coal and iron oreThis product is known as direct reduced iron (DRI) or sponge iron Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as DR(PDF) i) Direct Reduced Iron: Production ResearchGate
sponge iron process
Jul 29, 2010· In general sized iron ore of 518mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 1520%The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the productThe 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 requiresThe Making of Iron & Steel SEAISI
Sponge iron making process LinkedIn SlideShare
Nov 09, 2014· Sponge iron making process 1 ALBERTUS SEPTYANTOKO 2 IRON ORE • Iron = 6567 % • SiO2 + Al2O3 = 23 % • CaO + MgO = 0,51 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 518 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical CompositionFeb 22, 2016· WALK BY INSPECTION OF A SPONGE IRON ROTARY KILN ???? 🤨 Duration: 2:53 GlobeTrotter JAY 11,066 views 2:53 Visit of Iron Pellet Manufacturing Sponge iron making full processCoalSponge Iron
Sponge Iron Composition & Manufacturing Process Lloyd's
Sponge iron making is a process in which iron ore lumps (typically 5mm18mm size) are tumbled with a ‘select’ grade of ironcoking 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 finishedsponge iron manufacturing process or kiln operation with a view to finding out major energy saving 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 of unreacted carbonEnergy Audit Methodology of Sponge Iron Manufacturing
Sponge iron making process LinkedIn SlideShare
Nov 09, 2014· Sponge iron making process 1 ALBERTUS SEPTYANTOKO 2 IRON ORE • Iron = 6567 % • SiO2 + Al2O3 = 23 % • CaO + MgO = 0,51 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 518 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical CompositionExceptionally in the fluidized bed process sized iron ore particles are used Few selected ores are suitable for direct reduction process Sponge iron is produced in a powdered form so, it acts as a good raw material that can very well mixed with other metals in the production of different types of ironA Thesis Submitted for Partial Fulfillment of the Degree
Direct Reduced Iron (DRI) Production Plant
Direct Reduced Iron (DRI) Production Plant NIPPON STEEL ENGINEERING CO, LTD Basic Concept or Summary S16 u A direct reduced iron (DRI) production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore (or ironTunnel 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 strength and thermal stability ofSPONGE IRON PRODUCTION FROM ORE COAL
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 pellet, iron ore lumps, or fines The reduction takes place using gaseous reductants (CO + Haccount for more than 90% of the world production of iron and steel powders, viz the Höganäs spongeiron process and the wateratomizing process The former process is based on reduction of iron ore, yielding a highly porous spongeiron which subsequently is comminuted to powder The latter process is based on atomization of a stream of liquidPRODUCTION OF IRON AND STEEL POWDERS
OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION
1 Krupp Sponge Iron Process The Krupp Sponge iron process uses a rotary kiln for the reduction of high grade lump ores or pellets (Fig 1) The feed is introduced together with reducing and desulphurizing agents (limestone or raw dolomite) into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge51 SPONGE IRON PLANT There is a plan to install 4x100 TPD DRI kilns for production of 1,20,000 TPA sponge iron Manufacturing Process The proposed plant uses the coal based process in which iron oxide in pellet/iron ore will be reduced with non coking coal in a rotary kiln to make sponge ironProject Proponent M/s BRGD Sponge and Iron Pvt Ltd
WELSPUN STEEL LIMITED
The process of sponge iron making aims to remove the oxygen from iron ore The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product Sponge iron manufacture is highly sensitive to raw material characteristicsNov 05, 2015· Midrex is an innovative ironmaking process, developed for the production of directreduced iron (DRI) from iron ores and primarily natural gasMidrex® the world’s leading directreduced iron production
Sponge Iron SEIL
Steel Exchange India Limited is having a Sponge Iron manufacturing unit in technical collaboration with world renowned M/s Mannesmann Demag of Germany (CODIR Process) With an installed capacity of 2x350TPD and can able to produce Sponge Iron of 0225 Million Tons per Annum 1 The main raw materials used for the production of sponge iron isSponge iron is a highly processed form of iron ore which contains metallic iron in the range of 8388% 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 through electrical arcSponge Iron – Prakash Industries Limited
Hydrogen production by steam–iron process ScienceDirect
It is a cyclic process for water cleavage, whereby coal is consumed Coal is gassified to a lean reducing gas, containing carbon monoxide and hydrogen This gas reacts with iron oxides (haematite Fe 2 O 3, magnetite Fe 3 O 4, wuestite FeO) to produce a reduced form of iron oxide (wuestite FeO, iron Fe) The reduced iron oxide is reoxidisedConducting complete energy audit (both process and utility) of a sponge iron unit is challenging as there is no laid down procedure to audit the process side Further, the average heat to power ratio (kWth/kWe) of sponge iron plants ranges fromEnergy Audit Methodology of Sponge Iron Manufacturing
Sponge Iron SEIL
Steel Exchange India Limited is having a Sponge Iron manufacturing unit in technical collaboration with world renowned M/s Mannesmann Demag of Germany (CODIR Process) With an installed capacity of 2x350TPD and can able to produce Sponge Iron of 0225 Million Tons per Annum 1 The main raw materials used for the production of sponge iron isSponge iron is a highly processed form of iron ore which contains metallic iron in the range of 8388% 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 through electrical arcSponge Iron – Prakash Industries Limited
Hydrogen production by steam–iron process ScienceDirect
It is a cyclic process for water cleavage, whereby coal is consumed Coal is gassified to a lean reducing gas, containing carbon monoxide and hydrogen This gas reacts with iron oxides (haematite Fe 2 O 3, magnetite Fe 3 O 4, wuestite FeO) to produce a reduced form of iron oxide (wuestite FeO, iron Fe) The reduced iron oxide is reoxidisedConducting complete energy audit (both process and utility) of a sponge iron unit is challenging as there is no laid down procedure to audit the process side Further, the average heat to power ratio (kWth/kWe) of sponge iron plants ranges fromEnergy Audit Methodology of Sponge Iron Manufacturing
Project Proponent M/s BRGD Sponge and Iron Pvt Ltd
51 SPONGE IRON PLANT There is a plan to install 4x100 TPD DRI kilns for production of 1,20,000 TPA sponge iron Manufacturing Process The proposed plant uses the coal based process in which iron oxide in pellet/iron ore will be reduced with non coking coal in a rotary kiln to make sponge ironThe process reduces iron ore using a reforming gas made from natural gas The DRI is used mainly as the raw material for electric arc furnaces (EAFs), as a clean iron source substitute for scrap iron Pores are left behind in the DRI after oxygen has been removed These pores, if filled with water, for example, can cause the iron to reoxidize withMIDREX Processes 神戸製鋼所
Pig Iron Manufacturing Process
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 ferroalloys, experimental work was conducted in itProcess Description: Sponge iron is produced using noncoking coal by the process of reduction of iron are in a rotary kiln The reduction is carried out in a rotary kiln of a predetermined temperature and controlled atmospheric pressure The input raw material such as ironF ocus Steelworld
iron and steel manufacturing processppt | Steelmaking | Steel
Iron And Steel Manufacturing Process Four steps: Iron Making Process producing iron from iron ore Methods in iron Making Process 1 CokeovenSinterBF route 2 Direct Reduction Technique 3 Smelting Reduction Technologies CokeovenSinterBF route used by integrated steel plants that produce steel from iron ore In this process, the iron oreTherefore, it is now a trend to install rotary kiln technology for production of sponge iron in Indonesia due to direct utilization of bituminous coal Besides rotary kiln based process, some(PDF) New Concept of Hot Metal Production using Rotary
Sponge Iron Industry LinkedIn SlideShare
Nov 17, 2012· Sponge Iron units do not use the pollution control equipmentSource: WBPCB,2011 34 35 West Midnapore, CSE Report• People’s movement very strong against the sponge iron industry especially Rashmi Cement/ Ispat in 2009, in West Midnapore• Maoist politics emerged solely due to pollution from sponge iron plants in West Midnapore•SPONGE IRON PRODUCTION FLOW CHART Raw Material Feeding to Kiln (Iron Ore, Coal, Dolamite) Rotary Kiln (Conversion of Raw Iron Ore into Sponge Iron) Cooler (Sponge Iron Cooling below 100deg by external Water Cooling) Intermediate Bin Desired Quality (for Blending) Screening in Product HouseSPONGE IRON PRODUCTION FLOW CHART Raw Material
manufacturing process of sponge iron seminar ppt
sponge iron process Iron Ore Pelletizing Process: An Overview 1172018· Iron ore and iron ore pellets are important sources of iron for manufacturing steel The iron ore production has significantly expanded in recent years, owing to increasing steel demands in Iron and Steel Manufacturing Process Ppt Free download as Powerpoint Presentation (ppt), PDF File (pdf), Text File (txt) or view presentation slides online iron nd steel Iron and Steel Manufacturing Process Ppt