Iron Pellet Reduction In Sponge Iron Kilns

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Direct reduction of iron (DRI) – 'Sponge iron'

Mar 03 2008Sponge 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 true density from 4 4 gm/cc to 7 8 gm/cc in this product

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iron pellet reduction in sponge iron kilns

iron pellet reduction in sponge iron kilns|italy crusher- process of iron reduction in tunel kin and rotary kiln reduction in sponge iron kilns to find your need rotary kiln iron ore pellet process | Crusher News can be achieved by using of iron ore as against a rotary kiln in coal based sponge iron of Iron Ore PelletsTUNNEL KILN

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Sponge Iron in Mumbai स्पंज आयरन मुंबई Maharashtra

The metallic Iron obtained from Iron Ore or Iron Ore pellets by direct reduction in Coal based Rotary Kilns is called as Sponge Iron The name sponge Iron comes due to the porous structure of the reduced Sponge Iron due to removal of oxygen from the Iron Ore (Hematite) structure when observed through the

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iron ore fines tunnel kiln for pellet

Iron Pellet Reduction In Sponge Iron Kilns We have manufactured tunnel kiln that can produce quality sponge iron from any combination of iron ore fines iron ore pellets etc Our tunnel kiln's reaction time is 42 hours that product superior iron metal Chat with sales rotary kiln iron ore pellet process mulberrycottage €????

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Flow of materials in rotary kilns used for sponge iron

Abstract Looking forward to the need of developing coal-based sponge iron technology in India a country having no significant resources of either coking coal or natural gas the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975

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sponge iron process

Jul 29 2010In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20% 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 product

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use of fines for sponge iron production in coal based

Iron Ore after due reduction inside the kiln is discharged to a rotary cooler of 3 5 mtr and non magnetic elements and screening of DRI for lumps and fines and recognized as one of the leading coal based sponge iron technology in the world

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use of fines for sponge iron production in coal based

Iron Ore after due reduction inside the kiln is discharged to a rotary cooler of 3 5 mtr and non magnetic elements and screening of DRI for lumps and fines and recognized as one of the leading coal based sponge iron technology in the world

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iron pellet reduction in sponge iron kilns

Sponge Iron - Shree Nakoda Ispat Ltd Sponge Iron also known as Direct Reduced Iron is produced from Hematite Iron ore (5 Oxide pellets (6 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln

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Sponge Iron Plant

In the DRI plant production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at

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iron ore fines tunnel kiln for pellet

Iron Pellet Reduction In Sponge Iron Kilns We have manufactured tunnel kiln that can produce quality sponge iron from any combination of iron ore fines iron ore pellets etc Our tunnel kiln's reaction time is 42 hours that product superior iron metal Chat with sales rotary kiln iron ore pellet process mulberrycottage €????

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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 de-sulphurizing agents (lime-stone or raw dolomite) into an inclined rotary kiln heated counter current to the flow of hot gas and reduced to form sponge iron

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sponge iron kiln reduction

Sponge Iron Plant - Suppliers Exporters in Chhattisgarh In the DRI plant production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a

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tunnel kiln and iron powder reduction

The H246 gan228 s 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 1200176 C for 60 hours producing a sponge iron cake that is

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iron ore pellets manufacturing process by tunnel kiln

sponge iron production from ore -coal composite pellets in tunnel kiln the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron Keywords Tunnel Kiln Iron ore-coal composite pellets Sponge iron good and so the process finds application in reduction

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Reduction Efficiency of Iron Ore–Coal Composite Pellets in

Reduction of iron ore coal composite pellets in tunnel kiln emerges with an edge over all other systems studied Performance parameters like percentage metallic iron formed percentage metallization reduction efficiency carbon utilization efficiency energy efficiency have been calculated and found to be significantly higher for composite pellets than the other systems studied

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What is the difference between pellets and sinter?

Jun 11 2017Pellets are uniformely sized with purity of 63%- 68% contributing to faster reduction and high metallization rates Pellets with their high uniform mechanical strength and high abrasive strength increase production of sponge iron by 25% to 30% with same amount of fuel

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REDUCTION BEHAVIOUR OF IRON ORE PELLETS

DRI or Sponge Iron is a porous solid-state product of direct reduction process which is produced either in lump or pellet form DRI is a good substitute for steel scrap for producing steel in EAF BOF etc which resulted a rapid growth of the sponge Iron Industry In view of

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WELSPUN STEEL LIMITED

Iron Ore In sponge iron making iron ore is reduced in solid state Unlike in the conventional steel melting processes the gangue content of iron ore cannot be separated as a slag Therefore it becomes imperative to select an ore with a high Fe content and a low

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Sponge Iron in Mumbai स्पंज आयरन मुंबई Maharashtra

The metallic Iron obtained from Iron Ore or Iron Ore pellets by direct reduction in Coal based Rotary Kilns is called as Sponge Iron The name sponge Iron comes due to the porous structure of the reduced Sponge Iron due to removal of oxygen from the Iron Ore (Hematite) structure when observed through the

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SPONGE IRON PRODUCTION FROM ORE

Keywords Tunnel Kiln Iron ore-coal composite pellets Sponge iron Thermal efficiency Carbon utilization efficiency Percentage metallic iron 1 INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products [1-2] In the year 1908 use of tunnel kiln started for iron oxide reduction This

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direct reduced iron tunnel kiln

Direct reduced iron powder mill the use of tunnel kiln for iron ore reduction - MT Mill Reduction Reaction In Tunnel Kiln Process For Iron Ore Last Developed a new type of tunnel kiln direct reduction iron (DRI) production and cooling the refined ore powder is reduced into direct reduced iron (sponge iron

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Sponge Iron (DRI)

Iron Ore Pellet is used for reduction After reduction of iron ore pellet the product resembles sponge because of pores left behind after removal of oxygen As such it is called Sponge Iron 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

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iron pellet reduction in sponge iron kilns

iron pellet reduction in sponge iron kilns|italy crusher- process of iron reduction in tunel kin and rotary kiln reduction in sponge iron kilns to find your need rotary kiln iron ore pellet process | Crusher News can be achieved by using of iron ore as against a rotary kiln in coal based sponge iron of Iron Ore PelletsTUNNEL KILN

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OVERVIEW OF PROBLEMS IN SPONGE IRON INDUSTRY

x Higher Proportion of sponge iron can be used in steel making xi Higher yield in steel making by 2-3%compared to use of sponge iron from lump ore If the above advantages are considered the use of pellets in rotary kiln sponge iron process will become techno-economically advantageous in spite of higher price of pellets compared to lump ore price

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reduced iron tunnel kiln produce Swaziland

Mar 31 2018 Sponge Iron / Dri Production Tunnel Kiln Buy Sponge Iron By using tunnel kiln to produce DRI is that mix the iron ore concentrate pulverized iron ore concentrate will be reduction and get the direct reduced iron concentrate fines to oxidized pellet the production cost is

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OVERVIEW OF PROBLEMS IN SPONGE IRON INDUSTRY

x Higher Proportion of sponge iron can be used in steel making xi Higher yield in steel making by 2-3%compared to use of sponge iron from lump ore If the above advantages are considered the use of pellets in rotary kiln sponge iron process will become techno-economically advantageous in spite of higher price of pellets compared to lump ore price

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sponge iron process

During the process of manufacture of sponge iron coal injection plays a very vital role in maintaining the product quality Due to highly endothermic nature of Boudouard reaction heat has to be continuously supplied in entire reduction zone of rotary kiln Generally the length of reduction zone is 60-70% of total kiln

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Lubrication of Girth Gears in Sponge Iron Plants

Oct 03 2011In coal based sponge iron kilns depending on the quality of reductant (coal) used about 60% of the total heat input is utilized in the reduction process About 40% of the heat input is discharged with the kiln waste gases and the kiln materials in the form of chemical heat

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tunnel kiln for sponge iron design

direct reduced iron by tunnel kiln - nenss Design Tunnel Kiln Sale In Australia - Stone Crushing tunnel sponge iron kiln processiron ore processing plant direct reduction of iron ore from tunnel kiln process 4 Flow charts for tunnel kiln process for direct

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sponge iron from iron concentrate tunnel kilns

Boudouard reaction dolomite DRI Iron ore metallization non coking coal pellets reduction Rotary kiln Sponge iron Sulphur Coal based Direct Reduction Rotary Kiln Process The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials

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