Contact Us

C o n t a c t U s

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

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

Optimization of Lump Ore Proportions in Blast

The sinter with iron ore fines mean particle size 2.63 mm showed physical and metallurgical properties within the acceptable range, which is required for blast furnace operation. Sinter with mean

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

Blast Furnace Ironmaking ScienceDirect

Describes the iron ore burden materials charged to the blast furnace (BF): lump ore, sinter, and pellets. 2. Gives an overview of the iron ore minerals used and the related processing techniques. 3. Compares the physical and chemical properties of the iron ore charge materials, as

of a Blast Furnace Simulated by the Discrete

2019-12-24  A blast furnace is a reactor with approximately 5000 m3 of volume to produce pig iron from ore particles. Iron ore (sinter, lump, and pellet) and coke particles are alternately stacked at the topmost layer of the blast furnace, and the hot gas is blown from tuyeres at the bottom of the furnace. Iron

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.

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. the adhering rate

Effect of Nut Coke-sinter Mixture on the Blast Furnace

The influence of nut coke rate on the pressure drop of sinter is given in Figs. 5and 6. Generally, it can be seen that the pressure drop decreased with rising nut coke rate in the sinter–nut coke mixture. This effect became more re-markable at higher flow rate and Reynolds number (Reynolds number under the blast furnace conditions 600Re800).

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

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. the adhering rate

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.

UDC 669 . 162 . 26 : 622 . 341 . 1-18 Blast Furnace

2012-9-14  the reducing agents rate in the blast furnace when the partially reduced ore was a shaft furnace is used when reducing lump ore or pellets. 2) Final reduction & melting process of iron ore used for sinter and improves the properties of sinter. (7) The practice of blowing natural gas directly into the blast

Application of High Ratio Coke Mixed Charging

2019-4-3  above, the changes in blast furnace operation when the sinter ratio is changed were predicted using the 2-dimensional simulator. The effects of the sinter ratio and the coke mixed charging ratio were investigated for base operational parameters (productivity: 2.0 t-pig/ m3·d, coke ratio: 387.5 kg/t-pig, PCR: 89.1 kg/t-pig, blast rate: 7 780

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

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

Modern Blast Furnace Ironmaking GBV

2011-1-14  ChapterII TheBlast Furnace: Contents andGas Flow 11 2.1 Thegeneration ofgasandgasflowthroughthe burden 11 2.2 Furnaceefficiency 15 2.3 Anexampleofgasflowand contentsof ablast furnace 16 ChapterIII TheOreBurden: Sinter, Pellets, LumpOre 19 3.1 Introduction 19 3.2 Ironore 20 3.3 Qualitydemands for the blast furnaceburden 22 3.4 Sinter 26 3.5

LKAB's Experimental Blast Furnace and Pellet Development

2017-2-6  LKAB’s experimental blast furnace with a hearth than with sinter in terms of productivity and fuel rate. In recent years, the main focus has been to develop a pellet and the mixtures of pellets and lump ore, the furnace did not show a drastic change in resistance to gas flow.

Understanding Sinter and Sinter Plant Operations

Understanding Sinter and Sinter Plant Operations. satyendra; March 15, 2015; 2 Comments ; fluxes, Iron ore fines, SCFA, sinter, sinter plant. basic sinter, sintering machine,; Understanding Sinter and Sinter Plant Operations Sintering is a process of agglomeration of fine mineral particles into a porous and lumpy mass by incipient fusion caused by heat produced by combustion of solid fuel

(PDF) The production of large blast furnaces of China

The ironmaking blast furnace (BF) is an energy-intensive process, requires a considerable amount of carbon-related materials such as coke, coal, or natural gas, and releases enormous amounts of

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.

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. the adhering rate

iron ore pellets versus sinter in blast furnace

iron ore pellets versus sinter in blast furnace. Sintering of Iron Ore Carmeuse Using sinter in place of lump ore and pellets helps to reduce blast furnace fuel rate and CO 2 emissions Adding fluxed sinter feed to the blast furnace increases softening and melting temperature and improves reduction Sinter strength plays an important role in deciding PCI rate in the blast furnac

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

富氢气氛下不同含铁炉料的还原行为

2019-10-11  In order to explore the influence of hydrogen-rich on the upper burden of blast furnace, the reduction behavior of different iron-containing burdens under the condition of hydrogen-rich is studied. The pulverization experiment found that under the condition of 20%H 2 (volume percent), the pulverization rate of lump ore and sinter is obviously improved, and RDI >3.15 mm is increased by

iron ore pellets versus sinter in blast furnace

Using sinter in place of lump ore and pellets helps to reduce blast furnace fuel rate and CO 2 emissions Adding fluxed sinter feed to the blast furnace increases softening and melting temperature and improves reduction Sinter strength plays an important role in deciding PCI rate in the blast furnac. Chat Now

Modern Blast Furnace Ironmaking GBV

2011-1-14  ChapterII TheBlast Furnace: Contents andGas Flow 11 2.1 Thegeneration ofgasandgasflowthroughthe burden 11 2.2 Furnaceefficiency 15 2.3 Anexampleofgasflowand contentsof ablast furnace 16 ChapterIII TheOreBurden: Sinter, Pellets, LumpOre 19 3.1 Introduction 19 3.2 Ironore 20 3.3 Qualitydemands for the blast furnaceburden 22 3.4 Sinter 26 3.5

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

Main Features of a Modern High Capacity Blast

The blast temperature of some of the high capacity BFs is in the range of 1,250 deg C to 1300 deg C. Dehumidified blast The dehumidified blast eliminates the loss of heat needed for the decomposition of the water in the blast furnace. This in turn raises the flame temperature, promotes higher PCI rate and thus reduces the coke rate.

Studying on Softening and Melting Behavior of Lump

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.