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relationship of sinter in blast furnace coke rate

relationship of sinter in blast furnace coke rate

Dec 13, 2016 · As an effect of the increases of temperature and carbon loss rate, the strength of coke had a negative linear relationship with the temperature in the indirect reduction zone in a blast furnace. The carbon loss rate of coke in the stock column of a blast furnace is about 36% and the strength can be decreased by more than 90%

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coke rate - an overview | sciencedirect topics

coke rate - an overview | sciencedirect topics

The temperature distribution inside a sintering bed is dictated by the addition of fuel in the sinter mixture. The effect of coke rate on dioxin emissions was therefore investigated using pilot-scale sinter pot tests (Yu et al., 2012). The concentration of dioxins in the flue gas appeared to decrease with increasing coke rate most likely due to the less conducive temperature at the higher coke rate for the formation of …

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sinter quality and process of sintering iron ores – ispatguru

sinter quality and process of sintering iron ores – ispatguru

Nov 21, 2014 · Fig 1 Schematics of sinter mix and product sinter Sintering process is a generic term that is used to describe the process of agglomeration of a green mix of iron ores, fluxes and coke and plant solid wastes having a particle size of -10 mm so as to produce sinter which can withstand operating pressure and temperature conditions existing in a BF

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factors affecting coke rate in a blast furnace – ispatguru

factors affecting coke rate in a blast furnace – ispatguru

Jun 29, 2014 · Blast furnace coke rate reduces by around 2 % with the blast temperature increasing by 100 deg C. High top pressure also reduces the coke rate in the blast furnace. With every increase of top pressure of the blast furnace by 0.1 kg/sq cm there is a reduction of around 0.1 % in the coke rate

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(pdf) blast furnace performance under varying pellet

(pdf) blast furnace performance under varying pellet

Nov 26, 2018 · Use of pellet gives rise to uniform bed permeability in comparison with iron ore or sinter. This leads to better gas–solid contact resulting in higher productivity at reduced coke and fuel rate

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blast furnace operation- an overview | sciencedirect topics

blast furnace operation- an overview | sciencedirect topics

The sintering process begins with the preparation of a sinter mixture consisting of iron ore fines, fluxes, solid fuel (called bonding agents in Japan) such as coke breeze, and return fines from the sinter plant and blast furnace as well as recycled ferruginous materials …

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evaluationof sinterquality for improvement in gas

evaluationof sinterquality for improvement in gas

High RDI sinter deteriorates gas permeability in the upper part of the blast furnace because the particle size of the sinter is easily reduced by reduction degradation (powdering) in the furnace. In the lower part of the furnace, the sinter reducibility index (RI), RDI, tumble index (TI), gangue content V g , and gangue melting point T mg influence the KS value

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cokeovens-sinter-bf-bof route | sail

cokeovens-sinter-bf-bof route | sail

Reduction in coke rate in blast furnaces; SINTERING PROCESS A Sinter Plant typically comprise the following sub-units as shown below. SINTERING PROCESS. The raw materials used are as follows - Iron ore fines (-10 mm), coke breeze (-3 mm), Lime stone & dolomite fines ( …

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reduction of iron ore pellets,sinter, and lump ore under

reduction of iron ore pellets,sinter, and lump ore under

Mar 23, 2020 · A blast furnace (BF) is the most common process for hot metal production in the world. The BF is charged with metallurgical coke and iron‐bearing materials separately, which leads to a layered structure. The iron‐bearing materials consist of iron ore pellets, lump ore, and sinter. When the charge material descends, it is reduced by CO and H 2. In the ideal situation, iron‐bearing materials reduce …

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iron ore agglomeration technologies| intechopen

iron ore agglomeration technologies| intechopen

May 18, 2017 · The problem is that increasing FeO content affects coke rate, deteriorates the sinter reducibility [35, 36], and can also affect blast furnace productivity . Al 2 O 3 content (%) (min. 0.6, max. 1.8, typical 1.35 ): sinter quality is related with Al 2 O 3 content as when Al …

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reengineering bluescope steel's port kemblasinter…

reengineering bluescope steel's port kemblasinter…

As part of the analysis that yielded the relationship between sinter burden and blast furnace fuel rate, mentioned previously in the present work, it was also found that for a given amount of sinter in blast furnace feed • + 1% “Goethite 1” in sintering blend = -0.15 kg/t Blast Furnace Fuel Rate While such a relationship is not unexpected given the relationship in Fig. 10, and previous findings by Loo (1991) a …

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effectof sintermixcomposition andadditives on the

effectof sintermixcomposition andadditives on the

Effect of variations in sinter feed composition on sinter strength, bulk density, re-ducibility, chemical composition, and microstructure were determined by sintering experimental samples on a production sintering machine. Increasing amounts of roll scale, ore fines, return fines, and blast furnace slag were most beneficial to feed permeability, sinter bulk density, and strength

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char formation by coal injection and its behavior in the

char formation by coal injection and its behavior in the

The activation energy of char is lower and its reactivity in CO 2 atmosphere is higher compared to the coal; 2) the activation energy of coke significantly decreases in the presence of char, and thus, the solution loss reaction temperature of coke might be shifted to lower value; 3) the effect of char on burden reduction is temperature‐dependent: at lower temperatures around 900 °C, the presence of char influences the reduction of sinter …

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sintering| eurotherm by schneider electric

sintering| eurotherm by schneider electric

Two important properties of sinter are basicity, which is controlled by the amount of limestone, and strength, which is controlled by coke content. The sinter is now suitable for use in the blast furnace. Conveyors transport the material to the blast furnace stock house, where it is added to other materials to form the blast furnace burden

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