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For Products of building aggregates, LCK can offer such core crushing machines like jaw crusher, impact crusher, cone crusher and sand-making machine. So far, we have developed 10 series which include over 100 machine models that can be matched freely so as to meet various demands on yielding and types of building aggregates.

Development of energy conservations scenarios for sponge ...

The process flow diagram of conventional coal-based sponge iron plant is shown in Fig. 1.The 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.

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sponge iron process

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.

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Sponge Iron | Gagan Tmt

Sponge iron will be manufactured through the coal-based route in which crushed iron ore is converted into DRI. A long, slightly inclined, slowly rotating kiln is employed to carry out the reduction. The process would be designed to carry out reduction using solid reductant like non-coking coal.

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Sponge Iron Industry - SlideShare

Pollution in the Coal Based Sponge Iron Industry in India Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website.

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Analyses of Different Modifications Proposed for the ...

The process flow diagram (PFD) of a typical coal-based sponge iron plant is shown in Fig. 1 a. Different streams in PFD are assigned individual numbers and henceforth each stream will be referred through its respective number.

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Sponge Iron - an overview | ScienceDirect Topics

Commercial sponge iron powder production dates back to 1903 with the ... In the coal-based rotary kiln process, the char and hot gases are available for reuse. ... codeveloped by VAI and POSCO for the production of hot metal based on the direct use of iron ore fines and noncoking coal. Unlike the COREX® process, fine iron ore is charged into a ...

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WELSPUN STEEL LIMITED

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 oxygen from iron ore.

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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

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Sponge Iron Plants | Steel Manufacturing Companies in ...

| Download Brochure. The company has the world's largest coal-based sponge iron manufacturing facility at Raigarh, Chhattisgarh and stands out as the market leader in coal-based sponge iron …

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Setting up of modalities for normative coal requirement in ...

The contribution of coal based sponge iron to the total production in India has remained above 60 per cent since 2004-05. The contribution of coal based sponge iron has been on the rise.

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Sponge Iron - Manufacturing Process

The processes employing coal are known as solid-reluctant of coal-based processes while those employing reducing gases are known as gas-based processes. Sponge Iron produced by gas-based process is normally hot briquette and hence it is also known as Briquetted Iron (HBI).

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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

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Coal Based Sponge Iron Production Process - Buy Sponge ...

The processes employing coal are known as solid-reluctant of coal-based processes while those employing reducing gases are known as gas-based processes. Sponge Iron produced by gas-based process is normally hot briquette and hence it is also known as Briquetted Iron.

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ORISSA SPONGE IRON AND STEEL LTD.

OSIL Process subsequently became popular and was widely accepted and recognized as one of the leading coal based sponge iron technology in the world.. OSIL set up its Project & Engineering Division at Bhubaneswar in 1992 to enable setting up of Sponge Iron plants in the country based on its patented process.

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Simulation of Fluidized Bed Dryer using CFD for Preheating ...

The process flow sheet of a typical coal-based sponge iron plant with material and energy balanced operating data is shown in the figure. 1. The overall production capacity of the plant is 100tpd. In this process screened iron ore (6.5tph), coal (3.529tph) and …

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Coal based DRI Plant from Electrotherm - YouTube

Dec 25, 2014· Coal based DRI (Sponge Iron) plant using Rotary Kiln from Electrotherm.

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Direct Reduced Iron | Industrial Efficiency Technology ...

Direct Reduced Iron (DRI), also known as Sponge Iron, offers an alternative steel production route to BF-BOF and Scrap-EAF routes. In DRI, iron ore is reduced in its solid state – unlike BF process where a liquid metal is formed during reduction. DRI can then be transformed to steel in electric arc furnaces. DRI production is common in Middle East, South America, India and Mexico.

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Direct reduced iron - Wikipedia

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.

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CASE STUDY ON THRESHOLD PROBLEM Sponge Iron …

CASE STUDY ON THRESHOLD PROBLEM Sponge Iron Production Process Process description This is the case study of typical coal based sponge iron plant of 500 tonne per day capacity. The process flow diagram (PFD) of the sponge iron process is shown in Fig. 1.

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(PDF) i) Direct Reduced Iron: Production - ResearchGate

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 ore (in solid state) below the melting ...

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SPONGE IRON PLANT

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 …

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Sponge Iron Composition & Manufacturing Process - Lloyd's ...

DRI is successfully manufactured through either gas or coal-based technology. Iron ore is reduced in solid state at 800-1050 c either by reducing gas (H2+CO) or coal. The direct reduction process uses palletized iron or natural 'lump' ore. Process. Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled ...

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coal based sponge iron process - winkelsinwijsheid.nl

While gas-based sponge iron process is highly eco-friendly and energy efficient, coal-based sponge iron process is a highly energy intensive activity and leads to …

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Energy integration of sponge iron production process

The process flow sheet of a typical coal-based sponge iron plant with material and energy balanced operating data is shown in the figure. 1. The overall production capacity of the plant is 100tpd. In this process screened iron ore (6.5tph), coal (3.529tph) and dolomite (0.2tph) are charged into the rotary kiln. About 40% of total 5.958 tph coal ...

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coal based sponge iron process - zacarafarm.com

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 ore. Contact Now.

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STEEL MAKING: DRI ROUTE - VIABLE OPTION

Gas Based Vs Coal Based Production of DRI in India India, the world's largest producer of sponge iron 23 MMT, expected to maintain its lead in the near future. Sponge iron production grew at a CAGR of 11 per cent to reach a level of 21.09 million tonne in 2008-09 compared to 12.54 million tonne in 2004-05.

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(PDF) Energy survey of the coal based sponge iron industry

The efficiency of the coal based sponge iron process is defined as the energy needed for the reduction reactions com- pared to the energy added to the syst em. Due to chemical reactions and ...

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Sponge Iron - HIRA - Godawari Power & Ispat Limited

Sponge Iron is a substitute of scrap in steel melting. Although the reduction in the kiln is not direct, the CO gas reduces the impurities and oxides of hematite and the resultant DRI is in the solid form, this process is known as Direct Reduction Process. Coal based DRI process is mainly preferred on account of better non contaminated Iron (Fe ...

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Direct Reduced Iron and its Production Processes ...

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.

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coal based sponge iron plants in us - alsds.eu

Recovery and utilization of waste heat in a coal based sponge iron process of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among.

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