18 Nov
use of fines for sponge iron production in coal based rotary kiln

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use of fines for sponge iron production in coal based rotary kiln,f Cover - Sponge Iron IndiaGlobally ninety percent iron is produced through BF route. India produces . We should continue to look upon the new avenues to reduce our cost of production and to maximize the use of .. JSPL produces 1.3 MTPA DRI using rotary kilns based on coal. . l Lumps & Fines Ratio is 90:10 as against 60:40 if Iron ore is used.use of fines for sponge iron production in coal based rotary kiln,sponge iron production from ore -coal composite pellets in tunnel kilnAbstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln . Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, . production from beneficiated iron ore fines cakes. . Unlike rotary kiln, heating is external and therefore it permits the use of different.Prospects for Coal-based Direct Reduction . - Semantic ScholarDec 29, 2010 . a rotary hearth furnace (RHF). This paper outlines . 68.5 million tonnes in 2008, the production of coal- based DRI . a coal-based reduction process using a rotary hearth furnace (RHF) in . iron ore fines, steel mill waste and non-coking coal. This paper .. This impedes the commercial use of the process.

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Comments on use of fines for sponge iron production in coal based rotary kiln

Reduction of Iron ore with Non Coking Coal - CiteSeerX

use of coke. This becomes vital . the iron produced is classified as Direct Reduction process and . reduction behaviour of iron ore fines with non-coking coal fines .For this . Sponge Iron is the . rotary kiln/furnace in requisite proportion along with some . producers of DRI in the world and the largest in coal based. DRI.

RAW MATERIAL General The major Raw Materials required for .

General. The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-. Coking coal. Line.

sponge iron production from ore -coal composite pellets in tunnel kiln

Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln . Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, . production from beneficiated iron ore fines cakes. . Unlike rotary kiln, heating is external and therefore it permits the use of different.

accretion formation inside rotary kiln during sponge iron production

rotary kiln for sponge iron production. 6.1 Mechanism . agglomeration of fines nearer to the discharge end. . coal based rotary kiln of sponge iron production.

Optimization of Operating Parameters for Sponge Iron Production .

Keywords: Sponge iron process, Rotary kiln, ANN topologies, Optimum input parameters. . Due to promising availability of coal in India the coal based sponge iron . For this purpose one may use manual practice to see the outcome when one .. Slinger coal is fed as fines, medium and coarse coal pneumatically; however.

Modeling of Rotary Kiln for Sponge Iron Processing Using . - ethesis

Energy Balance in a Rotary Kiln sponge based iron making .. iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. . Another most common uses for sponge iron is manufacturing of wrought iron.

use of fines for sponge iron production in coal based rotary kiln,

Reduction of Iron ore with Non Coking Coal - CiteSeerX

use of coke. This becomes vital . the iron produced is classified as Direct Reduction process and . reduction behaviour of iron ore fines with non-coking coal fines .For this . Sponge Iron is the . rotary kiln/furnace in requisite proportion along with some . producers of DRI in the world and the largest in coal based. DRI.

use of fines for sponge iron production in coal based rotary kiln,

Articles - Production of.Process | IPFOnline - ResearchGate

May 22, 2015 . Articles - Production of Sponge Iron through Tunnel Kiln Process | IPFOnline . Coal. Www.HaasCNC com. Iron ore fines. India's total production of steel for . retorts, etc. are used while for coal based processes rotary kiln . Hoganas has developed a process in 1908, which uses coal as a reductant.

Mitigation of air pollution in sponge iron industries - Journal of .

furnaces are fed with the sponge iron for manufacture of steel or use . Sponge iron is produced by processes using coal and natural gas as the raw material. . ESP connects to a Rotary kiln to reduce the impact of air pollution. • Coal feed fines are reduced to reduce emissions. . Coal based plants should emit particulate.

Recovery and utilization of waste heat in a coal based sponge iron .

Mar 16, 2012 . iron exiting rotary kiln and further hot water is used to preheat air. To compute coal . Sponge iron is produced primarily both by using non-coking coal . Fines of iron ore at 900 oC. Kiln. Feeding. Iron ore: Feed coal: Dolomite . ing startup the steam quality is not suitable for turbine application,. (iii) any.

scrap supplements & alternative ironmaking 7 - Association for Iron .

Jan 9, 2017 . synthetic gas–based processes, and rotary kiln coal- based processes .. sponge iron industry to optimize the use of raw materials and byproducts .. in the form of fines or sludges, making direct use in metallurgical vessels.

Journal of Engineering Innovation And Research Recent .

Although iron was produced more than 3000 years ago, innovations in its manufacturing . Primus: This is a new coal based process for the . Corex. Midrex,HYL,. MidrexOXY+AREX. Rotary Kiln. Ore Fines. Star Furnace. Romelt . 1999, uses iron ore fines and coal. .. enables high grade sponge iron to be produced from.

The increasing role of direct reduced iron in global . - SAIMM

Synopsis. Direct reduced iron (DRI), produced by the reaction between iron . mainly through the electric arc furnace (EAF) route of steelmaking. The main DRI technologies in use are those of Midrex and Hyl, but in recent years a .. sponge iron. Defining DRI ... which utilizes iron ore fines and pulverised coal in a rotary.

Iron Ore Pelletization Technology and its . - ScienceDirect

calibrated lump and fines are required which corresponds to iron ore mining of approx. .. globules from very fine iron ore and are used for production of Sponge Iron .. The Kiln burner can use liquid gas or solid (Coal or wood) fuels separately or . rotary kiln where pellets are heated and fired uniformly, better know-how of.

Nitrogen in SL/RN Direct Reduced Iron - University of Pretoria

rotary-kiln coal-based processes such as the Stelco-Lurgi/Republic-National (SL/RN) rotary . little carbon dissolves in the sponge iron. . The plant of which production data were analysed in this work uses a large proportion of . (containing scrap, DRI fines – defined as ≤ 3mm material – constituting approximately 8% of.

use of fines for sponge iron production in coal based rotary kiln,

No. 11.7 HBI – Hot Briquetting of Direct Reduced Iron Technology .

direct reduced iron produced with the various processes of direct reduction. . The paper describes the characteristics of HBI and its current industrial application for . IMO distinguishes between DRI and "sponge iron which has been .. products from coal based processes (rotary hearth furnace) can be also briquetted hot.

Innovative technologies for sustainable processing of iron .

Dec 10, 2013 . technlogies: From ore fines to DRI. Smelting reduction. Direct reduction. SL/RN. • Rotary-kiln based. • Uses coal and lump ore.

studies on pollution control in sponge iron plants in west . - IRAJ

the conventional blast furnace route of the integrated iron and steel plants, in direct reduction itself, pollution . Sponge iron is produced using either coal or natural . sector largely depends on coal based sponge iron . treated DRI gases of rotary kiln have been reported . It can also be mixed with coal fines, converted to.

Accretion Control in Sponge Iron Production Kiln using Fuzzy Logic

rotary kilns, there is need to minimize accretion build up in the kiln. However due to the . application of Fuzzy Logic control. . Kiln Based Sponge Iron Production Process. Rotary ... This rise in accretion might be due to some coal fines and.

Metallurgical Characteristics and Effectiveness of Metallic Charges .

The use of direct reduced iron (DRI), hot metal, cold pig iron, decarburized granular . After pelletizing, concentrated fines were reduced to metallic pellets. . (3) The more carbon monoxide that is produced, the lower the electrode consumption . coal-based cold bonded pellet rotary kiln of the Luzhong metallurgical mining.

pig iron & HBI - OECD

Dec 5, 2011 . Created by the merger of the Hot Briquetted Iron. Association and the . Briquetted Iron (HBI), Direct Reduced Iron (DRI) and Iron Nuggets . •sponge iron producers using rotary kilns fired with coal ±20 mt. •LISCO . Crude steel production. 1,417. 1,639 . Linear (Brazilian iron ore 64% fines - $/tonne FOB).

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