reducibility of iron ore and coke rate in blast furnace

1. Kobe Steel's Blast Furnace Operation TechnologyAug 21, 2008 . 1. Iron ore and a reductant, such as coke (coal baked in lumps), are alternately fed into the top of the blast furnace. 2. Hot air at approximately.reducibility of iron ore and coke rate in blast furnace,Discussion on low fuel rate and high PCI rate of blast furnace .The development target is low fuel and high PCI rate, if the fuel rate is 500 kg/t, the . Iron ore and coke particles charged into the blast furnace experience . of the effects of iron ore reducibility and coke reactivity on blast furnace operation.

Behaviour of NINL Blast Furnace with Calibrated Lump Iron Oredistribution, reducibility (sinter and iron ore. lump) and reactivity . Keywords: Blast Furnace, Iron Making, Iron Ore Lump (CLO), sinter, cohesive zone,. thermal reserve zone, Coke Rate. Journal of . of gas utilization and hence coke rate and.reducibility of iron ore and coke rate in blast furnace,Paperblast furnace process including the possible minimal coke rate in theory is . Reducibility is ability of iron ore material to give oxygen from ferrous oxide to.

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Effect of adding line on the metallurgical properties of iron ore .

Jun 5, 2015 . In order to produce high-quality pellets with good reducibility and superior softening and melting . gical properties of iron ore materials for blast furnace use. ... furnace, resulting in a lower coke rate and higher productivity.

Factors affecting Coke rate in a Blast Furnace | ispatguru

Jun 29, 2014 . The reducing gas flows upwards reducing the iron bearing burden . Coke rate is the parameter for the consumption of BF coke which is .. The first one is iron bearing materials which are sinter, pellets and calibrated iron ore (CLO). . Further the burden materials are to have high reducibility to promote.

Discussion on low fuel rate and high PCI rate of blast furnace .

The development target is low fuel and high PCI rate, if the fuel rate is 500 kg/t, the . Iron ore and coke particles charged into the blast furnace experience . of the effects of iron ore reducibility and coke reactivity on blast furnace operation.

Effect of adding line on the metallurgical properties of iron ore .

Jun 5, 2015 . In order to produce high-quality pellets with good reducibility and superior softening and melting . gical properties of iron ore materials for blast furnace use. ... furnace, resulting in a lower coke rate and higher productivity.

LKABs Experimental Blast Furnace for Evaluation of Iron Ore Products

During hot commissioning a coke rate of. 510-515 . The blast furnace is still the dominating process for reduction of iron ore, and will continue to . aim was to create a highly reducible pellet with a high iron content, without compromising the.

reducibility of iron ore and coke rate in blast furnace,

effect of size of iron ore pellets on its reduction kinetics - ethesisnitr

various factors which affect the reducibility of the iron ore pellet. In our project we .. As a result of introduction of pellets in the Ijamudin blast furnace a coke rate.

Effect of Nut Coke-sinter Mixture on the Blast Furnace . - J-Stage

To maintain stable blast furnace operation with low coke rate and . The effect of various factors such as nut coke rate, gas flow rate, and layer . The influence of nut coke on the sinter reducibility was . The iron ore sinter was examined by re-.

Efficiency of hydrogen utilization in reduction processes in ferrous .

In the blast-furnace production of pig iron, the influence of wider hydrogen application . and liquid, bring more hydrogen into a blast furnace than metallurgical coke. . production of iron from ores by utilization of reducing gas rich in hydrogen, ... the results of the ore reducibility test using the algorithm published by Tuma et.

Influence of Coke Ratio on the Sintering Behavior of High . - MDPI

Jun 22, 2017 . rate and sinter productivity decrease. . HCVTM contains 61.4% total iron (TFe), 1.0% V2O5, 0.5% Cr2O3, . blast furnace smelting of HCVTM is the best choice in industrial . intensity, and extreme degradation of the sintered ore were ... while the reducibility decreased, and the appropriate coke ratio for.

IRON ORE SINTERING PART 2. QUALITY INDICES AND .

Key words: Sintering, Quality indices, Productivity, Blast furnace . Sinter reducibility, and sinter quality in general, improves with a higher level of hematite . FeO can provide an indication of sintering conditions, in particular the coke rate [3].

reducibility properties of erdemir samples a thesis submitted . - METU

. for Erdemir samples. Keywords: Reducibility, RDI, pellet, sinter, lump ore, modeling .. the column of ferrous burden, coke and fluxstone in a blast furnace .. solidification temperature, cooling rate, and the sintering atmosphere affect the.

Improving reducibility of iron ore pellets by optimization of . - CEON-a

reducibility of iron ore pellets of a specific chemistry can be improved by the optimization of physical parameters such as induration . increase the performance of pellet in blast furnace, it .. achieve good productivity and low coke rate. RI of.

The Effect of Presence of SiO2, Al2O3 and P2O5 on the Reduction .

. the reducibility of iron ores in the blast furnace and sponge iron/DRI plants. . Al2O3 and P2O5 on the Reduction Behaviour of Fe2O3 Nuggets with Coke Fines . The rate of reduction decreases with time, and interfacial chemical reaction is.

Influence of high grade iron ore usage on the performance . - SEAISI

Keywords: high grade iron ore, sinter, blast furnace, Brazilian fines, pot sinter, . remarkable increase since 1996, reaching a peak growth rate more than 6% .. The coke consumption, sinter productivity and sinter tumbler strength were the .. performance (RDI and reducibility) when the BRBF is introduced in iron ore mix.

Minimization of Blast furnace Fuel Rate by Optimizing . - OSTI.GOV

The blast furnace process converts iron ore into molten iron and is an important component in iron-steel . distributions for high fuel injection rate and low coke rate. The research has .. of reducibility experiments were conducted. The kinetics.

Iron Ore Pellets: North America, BF and DR Grade, Supply and Quality

3rd COREM Symposium on Iron Ore. Pelletizing Sept. . NAFTA Blast Furnace Pellet Balance. 2012 . Changes in NAFTA BF Pellet. Supply/ .. reducibility, sticking tendency determine DR . increase in coke rate, loading of oversized ore, kg/T.

Dr Neil J. Bristow Brief Steel Outlook Iron Ore Markets . - OECD

Dec 5, 2011 . pig iron. Favour BF/BOF. Vast high grade iron ore reserves . Liquid flow. Sintered Ore, lump, pellets. Coke +. Fe2O3 + CO. Coke. + . Reducibility . Cost of iron ore and coking coal as percent of global HRC steel price. 0%.

for blast furnace - VSSUT

(b)Sinter or pellets from fines(less than 8 mm) iron ore. Fuel(thermal . 2-fuel rate 450-470 kg/thm(270-275 coke and 175-225 kg of coal). 3-productivity levels of.

A study on the effect of coke particle size on the thermal . - SAIMM

charging in the blast furnace (Ramos et al.,. 2000 . bed and thus reduce the airflow rate through . iron ore sintering, coke particle size, thermal profile, flame front velocity, Tumbler . showed that the microporosity and reducibility of the sinters.

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