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reducibility of iron ore and coke rate in blast furnace

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Iron and Steel - Converting by-products to feedstock - Steele

In addition to producing feedstock for its own blast furnaces, the mill also supplies a leading Indian steelmaker with extruded briquettes, which is charging between 3-5% in a high-volume furnace. Result: The homogenous blend of iron oxide fines and fine carbon particles have driven a 20%-plus reduction in coke rates.

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Chemical, Mineralogical and Metallurgical Characterization ...

blast furnace as a result of prior calcinations outside the furnace and thus reduces the coke rate (Singh and Deo, 1995). Incorporation of flux in the burden through sinter, therefore, greatly improves the blast furnace performance, since the formation of slag then becomes relatively easy and it forms at the correct level in the blast furnace.

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how sinter pellet coke consumption

reducibility of iron ore and coke rate in blast furnace - solutions. various factors which affect the reducibility of the iron ore pellet. Table 1 sets out data on coke consumption productivity and sinter composition and quality . Chat Online; consumption of coke in iron ore pelletising process

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Characterisation of the Physical and Metallurgical ...

The blast furnace is still the dominant form of iron production, but over the years, direct reduction methods have increased due to a number of reasons. Overall, iron production methods have optimal requirements with respect to the feed materials especially iron ore. In this study, tests were carried out on Muko iron ore from Uganda to analyse its suitability to meet the feed requirements of ...

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The Reducibility of the Iron Ore Materials as Instrument ...

The technique of defining the minimum coke consumption in blast furnace smelting allows for the calculation of the reserve of coke economy on the basis of thermodynamic principles. In this reserve the constitutive role belongs to the reducibility of the iron ore materials (the agglomerate and pellets). In the present paper, the questions of the reduction kinetics of the iron ore materials and ...

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Improving reducibility of iron ore pellets by optimization ...

(800-1000 °C). The reducibility improvement of iron bearing materials can improve the indirect reduction in blast furnace and thereby increase productivity and quality of hot metal and decrease energy consumption. Use of agglomerates such as pellets and sinter in blast furnaces is increasing day by day to utilize fines and concentrates ...

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Decreasing Coke Rate under All-Pellet Operation in Kobe No ...

low coke rate operation this time, and this section mainly focuses on the measures for raising the ore melt down temperature. 2.1 Effectof internal volume of blast furnace on ore melt down control In general, the furnace height decreases as the internal volume of the blast furnace decreases. For this reason, the height from tuyeres to the bottom

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Application of High Ratio Coke Mixed Charging Technique to ...

blast furnace operation in the future. Ore-coke mixed charging, in which coke is mixed in the sinter or iron ore raw material and charged into the blast furnace, is known as one technique for achiev-ing these objectives1,2). Although this is a technique which improves the permeability and reducibility of

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Of Iron Ore And Coke Rate In Blast Furnace

Ironmaking Blast Furnace. Iron is made by reacting iron ore (iron oxide and impurities), coke (a reductant) and limestone (CaCO 3) in a blast furnace.. Iron ores with lower iron content such as taconite are first processed to concentrate the iron level and drive off volatile impurities.

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Quality Improvement of Sintered Ore in Relation to Blast ...

As a result, the blast furnace attained a productivity coefficient as high as 2.37 t/d/m3 and a high ore/coke rate of 4.87 with a PCR of 161 kg/t-pig11). 3.2 Improvement of blast furnace operation by decreasing Al2O3 content in sinter Further extending the line of the above tests, in 2001 another series of tests were conducted for decreasing ...

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Recent Progress in Ironmaking Technology for 2 Mitigation ...

sintering machine, which produces sintered ore as a raw material for the blast furnace, coke ovens that produce coke, which is important as a reducing agent, and hot stoves that generate the high temperature (approx. 1 200°C) hot blast blown into the blast furnace. Large amounts of CO2 are generated by the reduction reaction (Fe2O3+3CO → 2Fe ...

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Recent Progress in Ironmaking Technology for 2 Mitigation ...

sintering machine, which produces sintered ore as a raw material for the blast furnace, coke ovens that produce coke, which is important as a reducing agent, and hot stoves that generate the high temperature (approx. 1 200°C) hot blast blown into the blast furnace. Large amounts of CO2 are generated by the reduction reaction (Fe2O3+3CO → 2Fe ...

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Influence of nut coke on iron ore sinter reducibility ...

(2010). Influence of nut coke on iron ore sinter reducibility under simulated blast furnace conditions. Ironmaking & Steelmaking: Vol. 37, No. 3, pp. 219-228.

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REDUCIBILITY OF ASWAN ORE AND SINTERS WITH VARYING ...

for a coke consumption rate of 300 kg/t., world requirements for coking coal would rise by the year 2000 to more than double the present re-quirement of the blast furnace. (1) This situation has led to the urgent search for the question of the "Reducibility" of iron ores or of sinters and pellets made of reducibility therefore gained its ...

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UDC 622 . 785 . 5 : 669 . 162 . 26 . 012 . 4 Quality ...

viscosity of the blast furnace slag were adequately maintained by composition control without top charging of lump flux (Case 2 of Table 1). As a result, the blast furnace attained a productivity coef-ficient as high as 2.37 t/d/m3 and a high ore/coke rate of 4.87 with a PCR of 161 kg/t-pig11). 3.2 Improvement of blast furnace operation by ...

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Influence of nut coke on iron ore sinter reducibility ...

(2010). Influence of nut coke on iron ore sinter reducibility under simulated blast furnace conditions. Ironmaking & Steelmaking: Vol. 37, No. 3, pp. 219-228.

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coke grinder blast furnacecoke grinder coke

reducibility of iron ore and coke rate in blast furnace. influence of sinter on coke rate of blast furnace reducibility of iron ore and coke rate in blast furnace Jun 10 2012 The blast furnace is still the dominant form of iron production but over throat are coke lump ores and agglomerated ores in the form of sinter or reducibility of iron ore ...

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Minerals | Free Full-Text | New Trends in the Application ...

Iron and steel-making sector is one of the most important sectors due its great impact on the global growth and economy. The production rate of steel has sharply increased in the recent years [].However, the iron- and steel-making sector is one of the highest energy and carbon-consuming sectors [].About 70% of the total steel production relies directly on coal and coke inputs.

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Iron Ore Materials and Coke Quality Characteristics and ...

Jan 01, 2013· Reducibility is an ability of iron ore material to give oxygen from ferrous oxide to reducing gas with greater or smaller velocity. Its role increases as the blast furnace improving and the coke consumption decreasing. The reducibility of the iron ore materials is defined in accordance with Russian Federation State Standard < 17212­84.

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(PDF) Optimum nut coke for the iron making blast furnaces

It is shown that the reducibility of the iron ore materials is the basic reserve of economy the scarce and expensive coke in the blast furnace smelting. View full-text Article

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Improving reducibility of iron ore pellets by optimization ...

(800-1000 °C). The reducibility improvement of iron bearing materials can improve the indirect reduction in blast furnace and thereby increase productivity and quality of hot metal and decrease energy consumption. Use of agglomerates such as pellets and sinter in blast furnaces is increasing day by day to utilize fines and concentrates ...

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LKABs Experimental Blast Furnace for Evaluation of Iron ...

The experimental blast furnace has a working volume of 8,2 m3 and a diameter at tuyere level of 1,2 m. It is designed to operate at a low fuel rate. During hot commissioning a coke rate of 510-515 kg/thm was reached. This meets our demands well, and is important as it ensures that the composition of the reducing gas is similar to that in a ...

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Blast Furnace – Official Minecraft Wiki

Aug 09, 2020· Blast furnaces are similar to furnaces, but can smelt only ore blocks and tools/armor made of iron, gold or chainmail.Smelting equipment yields one iron or gold nugget from their respective materials. Once an item and a fuel are placed into the blast furnace, the block state changes to lit and the item is smelted twice as fast as a regular furnace. Fuel is also used at double the rate of ...

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Application of High Ratio Coke Mixed Charging Technique to ...

blast furnace operation in the future. Ore-coke mixed charging, in which coke is mixed in the sinter or iron ore raw material and charged into the blast furnace, is known as one technique for achiev-ing these objectives1,2). Although this is a technique which improves the permeability and reducibility of

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Enhancement of Iron Ore Sinter Reducibility through Coke ...

Enhancement of Iron Ore Sinter Reducibility through Coke Oven Gas Injection into the Modern Blast Furnace Elsayed Abdelhady MOUSA,1)* Alexander BABICH2) and Dieter SENK2) 1) Central Metallurgical Research and Development Institute (CMRDI), P. O. Box 87-Helwan, Cairo, Egypt.

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Reduction of Iron Ore Pellets, Sinter, and Lump Ore under ...

Herein, the reducibility of the iron ore pellet, sinter, and lump ore in the BF shaft are focused on. The experiments are conducted isothermally with a blast furnace simulator (BFS) high‐temperature furnace at four different temperatures (700, 800, 900, and 1000 °C) for 300 min.

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Preparation of MgO added iron ore pellets and effects on a ...

Iron ore pellets as the indispensable burden of blast furnace show many benefits, such as high iron grade(> 63%TFe), high physical strength and uniform and size distribution, high and even porosity, less loss on ignition or volatiles, easy reducibility, and lower abrasion during transportation and use [1]. In recent years, under the pressure of ...

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coke grinder blast furnacecoke grinder coke

reducibility of iron ore and coke rate in blast furnace. influence of sinter on coke rate of blast furnace reducibility of iron ore and coke rate in blast furnace Jun 10 2012 The blast furnace is still the dominant form of iron production but over throat are coke lump ores and agglomerated ores in the form of sinter or reducibility of iron ore ...

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Compare Agglomerated VS Sized Ore in Blast Furnace

The Japanese iron and steel industry has been developed remarkably, supported by the increase of steel demand. In particular, progress in various technical aspects of the ironmaking process, including burden materials, equipment, and operation has greatly contributed to the increase in productivity and the reduction of the fuel rate in blast furnaces.

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Reduction of Iron Ore Pellets, Sinter, and Lump Ore under ...

Herein, the reducibility of the iron ore pellet, sinter, and lump ore in the BF shaft are focused on. The experiments are conducted isothermally with a blast furnace simulator (BFS) high‐temperature furnace at four different temperatures (700, 800, 900, and 1000 °C) for 300 min.

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