blast furnace sinter lump rate

blast furnace sinter lump rate

(PDF) INTERACTION BETWEEN LUMP ORE AND SINTER

Usually, the softening and m elting (S&M) property of individual lump ore is thought to be inferior to iron ore sinter. However, it has been demonstrated that mixing ~20% lump ore with high...

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

The experimental atmosphere consisted of CO, CO2, H2, H2O and N2 simulating the conditions in blast furnace shaft. It was found that lump ore has lowest reduction rate in all test conditions and at...

Increasing the Sinter Ratio at Isdemir’s Blast Furnace#4 ...

2016-11-29 · At Iskenderun Iron and Steel Co. (ISDEMIR) Blast Furnace #4 investigations for raising the Sinter ratio have been performed. The iron bearing burden of the blast furnaces consists mostly of Pellets, Sinter and iron ore lumps. Among these materials Pellet have the highest iron content, but they are also the most expensive of these materials.

Reduction of Iron Ore Pellets, Sinter, and Lump Ore

2020-1-30 · 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 lay-ered structure.The iron-bearing materials consist ofironorepel-lets, lump ore, and sinter. When the charge material descends, it is reduced by CO and H 2. In ...

Lump Ore and Sinter Behaviour during Softening and

KEY WORDS: softening and melting tests; ferrous burden materials; lump ores; fluxed sinter; blast furnace. 1. Introduction The iron-bearing materials – termed the ferrous burden and is generally composed of sinter, lump ores and pellets – are charged into a blast furnace together but coke is charged separately. The alternate charging of ...

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

2020-3-23 · It is shown that the lump ore has the slowest reduction rate at each studied temperature. Pellets were the fastest to reduce in 700 °C, but already at 800 °C, sinter bypasses it and has the highest rate of reduction. Sinter has the highest reduction degree at 900 and 1000 °C. Figure 3

9.1.3 Alumina in Blast Furnace/Corex Burden

2017-9-8 · slag rate, reduced output and increased energy consumption through coke rate. Based on the above study, correlation of Alumina in Sinter with Blast Furnace carbon rate was conducted. As per the study, every 1% increase of Alumina in BF burden, carbon rate in Blast Furnaces

STRATEGIES FOR THE PRODUCTION OF LOW SILICON

2012-7-26 · The various parameters associated with blast furnace over five years period are presented in Table 2. The hot blast tempetature is consistantly lower and needs improvement. Sinter rate and % sinter in burden have shown declining trend in the current year and needs to be raised to at least 1200 kg/THM and 75% respectively for achieving improved ...

Factors affecting Coke rate in a Blast Furnace – IspatGuru

2014-6-29 · 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. Decreasing of fines content in the charge materials improves the coke rate of the blast furnace

Studying on Softening and Melting Behavior of Lump Ore

The beginning softening temperature declined and the ending softening temperature increased because of high porosity, which resulted in wide softening temperature interval. The charging ratio of lump ore A should be improved. Lump ore B should be distributed in the center of the blast furnace. Lump ores C and D should be used less.

Increasing the Sinter Ratio at Isdemir’s Blast Furnace#4 ...

2016-11-29 · At Iskenderun Iron and Steel Co. (ISDEMIR) Blast Furnace #4 investigations for raising the Sinter ratio have been performed. The iron bearing burden of the blast furnaces consists mostly of Pellets, Sinter and iron ore lumps. Among these materials Pellet have the highest iron content, but they are also the most expensive of these materials.

(PDF) INTERACTION BETWEEN LUMP ORE AND SINTER

The primary-slags formation behaviors of sinter, lump ores and integrated burdens were studied to explore the high temperature interaction between sinter and lump ores in blast furnace.

Perfect Sinter—The Dream of the Blast Furnace Operator

2011-10-11 · ♦ Constant basicity B2 and B4 adapted to best suit the overall blast furnace burden Another aspect to consider is that most blast furnaces operate using a mixture of sinter, pellets and lump ore. Pellets and lump ore, however, are normally marketed with specific chemical compositions and qualities.

Hot metal yield optimization of a blast furnace based on ...

2016-6-1 · The physical model for a blast furnace is showed in Fig. 1.The sinter ore, pellet ore, lump ore and coke are fed into the blast furnace from its top, and their dosage are D sinter, D pellet, D lump and D coke, respectively.Blast and pulverized coal are blew into the furnace from the tuyere at high velocity.

Fine Ore Injection into Blast Furnace through Tuyeres

2012-9-14 · Fine Ore Injection into Blast Furnace through Tuyeres Masaaki NAITO*1 Kazuyoshi YAMAGUCHI*2 Hiromitsu UENO*3 Kenji TAMURA*2 Abstract To determine the maximum rate of fine ore injection into a blast furnace while maintaining a desired deadman temperature, we developed a test apparatus capable ... positions of the sinter, lump ore and coke to be ...

9.1.3 Alumina in Blast Furnace/Corex Burden

2017-9-8 · slag rate, reduced output and increased energy consumption through coke rate. Based on the above study, correlation of Alumina in Sinter with Blast Furnace carbon rate was conducted. As per the study, every 1% increase of Alumina in BF burden, carbon rate in Blast Furnaces

Review on improving gas permeability of blast furnace ...

2019-10-4 · In blast furnace, this phenomenon often occurs in low-temperature lump zone, most seriously between 500 and 550 °C, bringing two negative effects: (1) The generated powder ores were partly blown out from the top of blast furnace along with gas, decreasing the utilization rate of ore; (2) the remaining powder ores clog voids of burden bed and ...

NEELACHAL ISPAT NIGAM LTD - NINL

2017-9-22 · 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. Parameters Affecting Sinter Quality:

Factors affecting Coke rate in a Blast Furnace – IspatGuru

2014-6-29 · 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. Decreasing of fines content in the charge materials improves the coke rate of the blast furnace

Recent Progress in Ironmaking Technology for 2

2019-4-3 · ral gas which are injected directly into the blast furnace. Coke produced by the coke ovens is screened, after that coke breeze is used as a bonding agent for sinter, and lump coke is charged to the blast furnace. The coke oven gas (C gas) and blast furnace gas (B gas) generated by the coke ovens and blast furnace are used as fuels in

Increasing the Sinter Ratio at Isdemir’s Blast Furnace#4 ...

2016-11-29 · At Iskenderun Iron and Steel Co. (ISDEMIR) Blast Furnace #4 investigations for raising the Sinter ratio have been performed. The iron bearing burden of the blast furnaces consists mostly of Pellets, Sinter and iron ore lumps. Among these materials Pellet have the highest iron content, but they are also the most expensive of these materials.

Perfect Sinter—The Dream of the Blast Furnace Operator

2011-10-11 · ♦ Constant basicity B2 and B4 adapted to best suit the overall blast furnace burden Another aspect to consider is that most blast furnaces operate using a mixture of sinter, pellets and lump ore. Pellets and lump ore, however, are normally marketed with specific chemical compositions and qualities.

IRON ORE TREATMENT: Baffinland lump ore passes blast ...

2009-9-27 · The German steelmaker consumed the lump ore in one of the world's largest blast furnaces at a rate of 16% Mary River ore and 84% sinter. Michael Zurowski, executive VP of Baffinland, said, "Baffinland's Mary River lump iron ore has now passed the ultimate test, the rigours of the commercial blast furnace.

COMPARISON OF SINTER AND PELLET USAGE IN AN

2020-7-20 · process. The remainder will have to be pelletized and added to the blast furnace burden to replace declining sinter and lump ore supplies. Hatch has compared the merits of using sinter and pellets in the blast furnace to help steel producers evaluate the impact of increased pellet usage in the blast furnace burden. 2.2 Comparing Sinter and Pellets

Alert Blast Furnace & Sintering (August 2016)

2016-9-5 · Alert Blast Furnace & Sintering (August 2016) 1. Recent advances in iron ore sintering. L. Lu, O. Ishiyama. ... Studies using mixtures of fluxed sinter and lump ore indicate that blast furnace burdens can easily accommodate 20% ore. ... sinter quality and fuel rate

Review on improving gas permeability of blast furnace ...

2019-10-4 · In blast furnace, this phenomenon often occurs in low-temperature lump zone, most seriously between 500 and 550 °C, bringing two negative effects: (1) The generated powder ores were partly blown out from the top of blast furnace along with gas, decreasing the utilization rate of ore; (2) the remaining powder ores clog voids of burden bed and ...

Natural Gas and PCI in the Blast Furnace - Steel-Insights,

2018-1-19 · Coke Rate, kg/T 370 409 365 349 397 . Gas Rate. Kg/T 115 91 99 107 95 . Coal Rate kg/T 0 0 0 0 0 . Oxygen, % of Blast 33.1 30.0 25.6 25.9 27.4 . Flame Temp, C 1852 2027 1827 1819 1804 . F 3366 3681 3321 3306 3279

NEELACHAL ISPAT NIGAM LTD - NINL

2017-9-22 · 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. Parameters Affecting Sinter Quality:

Why Chinese steelmakers are using less scrap in their ...

2019-7-10 · Scrap can be charged at a maximum rate of ~10% of the Fe burden A BF requires ~960 kg of Fe burden to produce 1 tonne of hot metal (i.e. 960 kg/thm) and, due to the respective Fe contents of sinter, lump and pellet, this typically requires a total of

Recent Progress in Ironmaking Technology for 2

2019-4-3 · ral gas which are injected directly into the blast furnace. Coke produced by the coke ovens is screened, after that coke breeze is used as a bonding agent for sinter, and lump coke is charged to the blast furnace. The coke oven gas (C gas) and blast furnace gas (B gas) generated by the coke ovens and blast furnace are used as fuels in