sponge iron process pdf

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sponge ironpptx | Iron | Steelmaking

Sponge iron is the product created when iron ore is reduced to metallic iron, in the presence of coal, at temperatures below the melting point of iron The external shape of the ore is retained with 30% reduction in weight due to oxide reduction resulting in change in ,...

US3964898A - Process for batch production of sponge iron ,

Sponge iron is produced by a process including a charging step during which an iron oxide is arranged as a stationary bed in a furnace chamber, a heating step during which a hot, preferably non-reducing atmosphere is cased to flow through the stationary bed, and a reduction step during which a hot reducing atmosphere is caused to flow through the stationary bed to reduce the iron oxide to ....

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN ,

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN A ROTARY KILN B L SENGUPTA A B CHATTERJEA, G P MATHUR V A ALTEKAR* ABSTRACT ON the background of the imbalance in the occurrences of vast deposits of high grade iron...

PRODUCTION OF IRON AND STEEL POWDERS

The Höganäs sponge iron process, is essentially a chemical process in which finely divided iron ore is being reduced with coke breeze yielding a spongy mass of solid metallic iron, which can readily be comminuted to iron powder...

Development of energy conservations scenarios for sponge ,

The process flow diagram of conventional coal-based sponge iron plant is shown in Fig 1The operating data shown in Fig 1 is taken from a typical Indian sponge iron plant In the conventional process kiln feed, which consists of iron ore, feed coal, and dolomite, is fed to the rotary kiln...

Energy Audit Methodology of Sponge Iron Manufacturing ,

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 of un-reacted carbon...

US2462900A - Reduction accelerator for the sponge iron ,

similar reducing agents in the rotary kiln sponge iron process undernormal operating conditions usually involves operating temperatures about 2000 Fahrenheit, and a processing time within that temperature range of approximately 80 minutes in order to produce highly metallized (approximately 95 percent) sponge iron...

Energy integration of sponge iron production process

Although the making of sponge iron through direct reduction is being practiced in India, it still is having loopholes due to the non-optimal process parameters, high energy consumption and old running process technology motivation of the present work...

iron and steel manufacturing processppt | Steel | Iron

iron and steel manufacturing processppt - Free download as Powerpoint Presentation (ppt), PDF File (pdf), Text File (txt) or view presentation slides online , solid Sponge Iron Smelting Reduction Technologies In this process, the hot metal (liquid iron) is produced from iron ore in two steps Ores are partly reduced in the first step ....

DRI , THE SPONGE IRON INDUSTRIE FULL VIDEO - YouTube

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 ...

A novel process for stationary hydrogen production: the ,

The sponge iron reaction process is a cyclic process for water splitting, whereby a syngas is consumed The syngas reacts with iron oxide (magnetite, Fe 3 O 4 ) to produce a reduced form of iron oxide (wuestite or iron)...

SPONGE IRON/DIRECT REDUCED IRON (DRI), HOT ,

31 Sponge Iron/Direct Reduced Iron-It is the resulting product (with a metallization degree greater than 82 percent) of solid state reduction of iron ores or agglomerates (generally of high grade), the principal constituents of which are Metallic iron, residual iron...

Recovery and utilization of waste heat in a coal based ,

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...

SPONGE IRON PLANT PPT - YouTube

Oct 25, 2016· DESIGN OF WASTE HEAT RECOVERY SYSTEM IN A SPONGE IRON PLANT A thesis submitted in partial fulfillment of the Requirements for the degree of Terra Ferra Sponge Iron Private Limited is a Belgaum ....

De-centralised hydrogen production by an integrated ,

De-centralised hydrogen production by an integrated biomass gasification/sponge iron process Thorsten Gerdes, Monika Willert-Porada Chair of Material Processing, University of Bayreuth, D-95440 Bayreuth, Germany...

A Thesis Submitted for Partial Fulfillment of the Degree ,

Sponge iron, also called Direct-reduced iron (DRI),[2] is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal...

Energy survey of the Sponge Iron Process - chemenglthse

The e ciency of the H ogan as Sponge Iron Process is de ned as the energy needed for the reduction reactions compared to the en-ergy added to the system The process e -ciency is about 40% and decreases slightly with decreased pushing time Other com-panies in the sponge iron business achieve...

Energy Conservation in Sponge Iron Production Process ,

Sponge iron is the metallic form of iron produced from direct reduction of iron oxide below the fusion temperature of iron ore (1535ºC) utilizing hydrocarbon gases or carbonaceous fuels such as coal...

Sponge Iron Manufacturing - [PDF Document]

EXECUTIVE SUMMARY 1 Sponge Iron is iron ore reduced directly in solid state using coal gas, natrual gas or coal as reductants and is also known as Directly Reduced Iron,...

advantages of limestone in sponge iron process

advantages of limestone in sponge iron process The Processes of Iron and Steel Making - Scribd The Processes ofIron and Steel Making This page has ,...

Direct Reduced Iron and its Production Processes ,

Direct reduced iron (DRI) is technically defined as iron ore which has been reduced to metal without melting it Hot briquetted iron (HBI) is a densified form of DRI to facilitate its handling and transport...

Melting behaviour of sponge iron in - [email protected]

Sponge iron used in these experiments was produced from two different processes namely, (i) coal based direct fired rotary kiln process at RDCIS (SAIL), Ranchi, and (ii) Coal based indirectly fired vertical retort furnace process developed at NML...

AN INVESTIGATION FOR GENERATION OF ENERGY ,

The process flow diagram of conventional coal based sponge iron plant is shown in figure 1 The operating data, shown in figure 1, is taken from a typical Indian coal based sponge iron plant where iron ore, feed coal and dolomite...

status of sponge iron plant, Orissa - vasundharaodishaorg

The process of sponge iron involves the removal of oxygen from iron ore During this process, the departing oxygen causes micro pores in the ore body making it porous The final product, when observed under a microscope, resembles a honeycomb structure looking spongy in texture....

Sponge iron reaction - Wikipedia

The sponge iron reaction (SIR) is a chemical process based on redox cycling of an iron-based contact mass, the first cycle is a conversion step between iron metal (Fe) and wuestite (FeO), the second cycle is a conversion step between wuestite (FeO) and magnetite (Fe 3 O 4)...

Recovery and utilization of waste heat in a coal based ,

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...

Sponge iron making process pdf - WordPress

Sponge Iron production using coal involves reducing iron ore with solDirect-reduced iron DRI, also called sponge iron, is produced from direct reduction of This process of reducing the iron ore in solid form by reducing gases is called...

DESIGN OF WASTE HEAT RECOVERY SYSTEM IN A SPONGE ,

Sponge iron is the metallic form of iron produced from reduction of iron oxide below the fusion temperature of iron ore (1535 o C) by utilizing hydrocarbon gases or carbonaceous fuels as coal...

SPONGE IRON PLANT PPT - YouTube

Oct 25, 2016· DESIGN OF WASTE HEAT RECOVERY SYSTEM IN A SPONGE IRON PLANT A thesis submitted in partial fulfillment of the Requirements for the degree of Terra Ferra Sponge Iron Private Limited is a Belgaum ....

Figure 10:E x-CCGT Energybalanced iagram

2 Sponge Iron with Steel Melting Shop Sponge Iron 3 Sponge Iron with Steel Melting Shop and Others (Ferro Chrome, FeMn, SiMn, Pig Iron, Ferro Silicon, Rolling Mills etc)...