Reducibility Of Iron Ore And Coke Rate In Blast Furnace

reducibility of iron ore and coke rate in blast furnace

Factors affecting Coke rate in a Blast Furnace Factors affecting Coke rate in a Blast Furnace BF is a counter current reactor in which the reducing gas is produced by the gasification of the carbon of the BF coke with the oxygen of the hot blast injected via tuyeres in the lower part of the furnace

Factors affecting Coke rate in a Blast Furnace | ispatguru

The effect of automatic process control on the blast furnace coke rate is in the range of 3 % to 5 % Blast temperature is other parameter which influences the coke rate in a blast furnace Blast furnace coke rate reduces by around 2 % with the blast temperature increasing by 100 deg C

CFD Investigation of the Effects of Iron Ore Reducibility

Reducibility and Coke Reactivity on Blast Furnace Operation ties of the iron ore and coke The reducibility of iron ore and the all coke rate due to the iron ore having a higher degree of

CFD investigation of the effects of iron ore reducibility

The effects of iron ore reducibility and coke reactivity in the shaft region of a blast furnace are studied A sensitivity analysis of varying reaction rates of ore and coke on gas utilization

CFD Investigation of the Effects of Iron Ore Reducibility

ties of the iron ore and coke The reducibility of iron ore and the reactivity of coke are key param-eters that affect the blast furnace coke rate To reduce the coke rate via pulverized coal injec-tion (PCI) and natural gas injec-tion additions, it is important to understand the behavior of …

reducibility of iron ore and coke rate in blast furnace

The reducibility of iron ore pellets of a specific chemistry can be improved by the optimization of physical increase the performance of pellet in blast furnace, it …

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

MATHEMATICAL MODELLING OF A BLAST FURNACE …

consumer properties of the prepared iron ore raw materials (1) Reducibility is ability of iron ore material to give oxygen from ferrous oxide to reducing gas with greater or smaller velocity Its role increases in process of blast furnace improving and the coke rate reduction Reducibility is defined as the attitude of weight of the taken

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 237 t/d/m3 and a high ore/coke rate of 487 with a PCR of 161 kg/t-pig11) 32 Improvement of blast furnace operation by

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

MATHEMATICAL MODELLING OF A BLAST FURNACE …

consumer properties of the prepared iron ore raw materials (1) Reducibility is ability of iron ore material to give oxygen from ferrous oxide to reducing gas with greater or smaller velocity Its role increases in process of blast furnace improving and the coke rate reduction Reducibility is defined as the attitude of weight of the taken

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 237 t/d/m3 and a high ore/coke rate of 487 with a PCR of 161 kg/t-pig11) 32 Improvement of blast furnace operation by

blast furnace flow chart of making iron - centre-du-bien

Iron is made by reacting iron ore (iron oxide and impurities), coke (a reductant) and limestone (CaCO 3) in a blast furnace A specialized type of coal, called hard coal, is used to make coke…

Enhancement of Iron Ore Sinter Reducibility through Coke

Energy network within the integrated steel works should be used more efficiency to reduce the energy consumptions and CO 2 emissions The injection of free resources of coke oven gas (COG), which is rich with hydrogen, into the modern blast furnace is one of such measures

Using a Mathematical Model of Counter-Current Flow in a

Flow in a Blast Furnace to Evaluate Reducibility of Iron‐Ore‐Bearing Raw Materials Pavlina Pustejovska, Jiri Tuma, Vladimir Stanek, Jiri Kristal, Simona Jursova, and Jiri Bilik The systematic research of the properties of the ore charge for blast furnaces has been

HIGH PRODUCTIVITY AND COKE RATE REDUCTION

HIGH PRODUCTIVITY AND COKE RATE REDUCTION AT SIDERAR BLAST FURNACE #2(1) Oscar Lingiardi(2) Oscar Burrai(2) Claudio Partemio(2) Fernando Giandoménico(2) Pedro Etchevarne(3) Juan Manuel Gonzalez(3) Siderar is the largest steel company in Argentina and is located in San Nicolás, in the Province of Buenos Aires

Iron and Steelmaking | Blast Furnace | Iron

Replacement rate of coke by injected fuels depends on economical favourableness and on technological factors that have dimension larger than 6 ores and other undesirable impurities we consider fluxes ignition temperature and optimal lumpinessProduction of pig iron in a blast furnace pieces of ore material is further utilized for

FACTORS AFFECTING COKE RATE IN A BLAST FURNACE

Decreasing of fines content in the charge materials improves the coke rate of the blast furnace in the range of 04 % to 07 % High top pressure also reduces the coke rate in the blast furnace With every increase of top pressure of the blast furnace by 01 kg/sq cm there is a reduction of around 01 % in the coke rate

Electric Smelting Furnace of Ore

Section 7 of volume 2, 93 pages, in Miller’s report, covers the electric smelting of iron ore as tried and as it is being done throughout the world The Dominion of Canada made electric iron in 1906 and demonstrated that, metallurgically, a sustained operation could be carried on But the furnace was converted to produce ferro-alloys

Blast Furnace System | Industrial Efficiency Technology

In a blast furnace (BF) the iron oxides are reduced and the resulting iron is melted Approximately 70% of the global steel production involves the use of BFs On charging 30% CCB, coke rate and the total reducing agents rate are reduced by 302% and 63% respectively Blast Furnace System …

The Reducibility of the Iron Ore Materials as Instrument

In the present paper, the questions of the reduction kinetics of the iron ore materials and diffusion processes at reduction of iron from its oxides are considered 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 …

Innovative Uses of Hydrogen in Steelmaking

BOF Steel Coke Oven Coal O2 Scrap/HBI 1500 °C Liquid ‘Hot Metal’ Blast Furnace sinter Lump Iron Ore Fine Iron Ore Coke fuel reductant structure

Modeling of iron ore reactions in blast furnace

Iron ore (pellet, sinter and lump ore) is gradually reduced to iron in blast furnace The reductions are a serial of heterogeneous gas solid reactions that take place from the top of the furnace and throughout the shaft region of the furnace

The Reducibility of the Iron Ore Materials as Instrument

In the present paper, the questions of the reduction kinetics of the iron ore materials and diffusion processes at reduction of iron from its oxides are considered 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 …

Innovative Uses of Hydrogen in Steelmaking

BOF Steel Coke Oven Coal O2 Scrap/HBI 1500 °C Liquid ‘Hot Metal’ Blast Furnace sinter Lump Iron Ore Fine Iron Ore Coke fuel reductant structure

Modeling of iron ore reactions in blast furnace

Iron ore (pellet, sinter and lump ore) is gradually reduced to iron in blast furnace The reductions are a serial of heterogeneous gas solid reactions that take place from the top of the furnace and throughout the shaft region of the furnace

17_Feb_2017_1955544871JRVYJTHPFR | Blast Furnace | Iron Ore

Feb 17, 2017 · Lower coke rate due to the saving in the heat requirement in the Blast Furnace since the calcinations of the fluxes take place in the sintering process outside the Blast Furnace and better reducibility of the charge material

Iron Ore Processing for the Blast Furnace

blast furnace process The iron ore concentrate is now mixed and ready for the pelletizing process Pelletizing A pellet plant contains a series of balling drums where the iron ore concentrate is formed into soft pellets, in much the same manner that one rolls a snowball, to make a pellet about the size of a marble (between 1/4" and 1/2")

What is coke rate in blast furnace - Answers

According to steelnic; Coke Rate is measured in Kgs of BF Coke consumed per tonne of Hot Metal produced in the Blast Furnace(Kg/THM) By convention, this excludes coke (nut/pearl coke) mixed

Development of Ferro-Coke Process for Mitigating CO2

Metallic iron Carbon(coke) Binder Ore particle Coal particle ・Improve sinter reducibility Ferro-coke Coke Blast furnace Inner reaction simulator 30% of conventional coke was replaced with Ferro-coke Different mixing conditions with Ferro-coke were tested

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

Blast furnace productivity and the influencing parameters

The blast furnace is a counter current reactor in which the reducing gas is produced by the gasification of the carbon of the coke with the oxygen of the hot blast injected via tuyeres in the lower part of the furnace

Blast Furnace Operation with 100% Extruded Briquettes Charge

As a result the coke consumption for the 100% of the BREX in the charge has fallen on about 200 kg/t compared to the 100% rich iron ore charge operation of blast furnace It can also be seen that Si content in pig iron has approached the level typical for large blast furnaces

Charging of a blast furnace with iron ore and coke - YouTube

May 15, 2012 · This is one of the blast furnaces of VoestAlpine, the steel company in Leoben in Austria Note the container advancing upwards, which charges either iron ore or metallurgical coke into the furnace

The Role of Reducibility in Achievement of the Minimal

The limit of perfection of a blast-furnace smelting, including in its concept a minimal theoretically possible coke consumption, is determined by a thermodynamic equilibrium of oxidation-reduction reactions in separate zones of a furnace

Reducibility and reduction swelling behaviour of some iron

Iron ore pellets are used for the production of hot metal in blast furnaces and DRI/HBI in direct reduction processes A blast furnace is a shaft furnace, which is charged with iron bearing materials (pellets, sinters and/or lump ore), reducing agents (metallurgical coke…

Influence of nut coke on iron ore sinter reducibility

AbstractOne of the most important factors to increase the economic efficiency of the blast furnace process is to reduced coke losses (undersieve product known as nut coke) In recent years there has been increased interest in mixing nut coke in the sinter layers

Location

CONTACT INFO