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what effect magnetic sinter in blast furnace:

Improvement of sinter productivity by control of

2017-1-1 · Increase of gangue is not only the factor to influence sinter qualities, but also the factor to increase coke ratio in the blast furnace operation as the increase of slag ratio. Therefore, to cope with the deterioration of iron ore qualities, studies on alternative iron ore resources and development of its utilization technology have been required.

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Evaluation of Sinter Quality for Improvement in Gas ...

bility in the lower part of the blast furnace. For this reason, sinter with low RDI and high RI is considered to be appro-priate for improving gas permeability in the blast furnace. However, RDI tends to increase when RI is high. Against this background, various research3–7) on quality manage-ment indexes for sinter have been carried out to date, but

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Evaluation of Sinter Quality 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.

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Steelmaking Slag Beneficiation by Magnetic Separator

2015-1-3 · makes it possible to obtain products that meet the requirements of sintering and blast furnace production. The slags with particle size of -10 mm were enriched by the magnetic separator resulting and increase in Fe grade from 18% to 33%. The use of BOF slag in sinter blend

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Effect of Sinter Mix Composition and Additives on the ...

Increasing amounts of roll scale, ore fines, return fines, and blast furnace slag were most beneficial to feed permeability, sinter bulk density, and strength. Burnt lime additions improved feed permeability but were not beneficial to sinter strength or bulk density. Sinter

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Impact of Sinter Basicity and Alumina on Softening

2019-11-26 · It can be seen from the graph that the total fuel consumed by the blast furnace increases with an increase in alumina content of the sinter. Also, with an increase in alumina, slag of higher viscosity is produced, and thus, more and more fluxes as well as

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EFFECT OF MAGNETITE, HEMATITE AND PELLET

2017-2-6 · The trend has shown increasing gangue contents, leading to lower iron content and as a consequence, higher slag volumes in the blast furnace. In order to maintain iron content and gangue levels of sinter feed, the sinter ores became finer due to an

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Understanding Sinter and Sinter Plant Operations –

2015-3-15 · The degradation of sinter in the blast furnace occurs during reduction in the low temperature zone, and has a harmful effect on the burden strength in the furnace, with the consequent loss of permeability to reducing gases and an increase in coke consumption.

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CHAPTER-11 FUNDAMENTALS OF IRON ORE SINTERING

2012-8-16 · It has been conclusively proved in relation to the blast furnaces (BF) of SAIL- Bhilai, TATA STEEL, Schwelgerm and Ruhort (No.6) that Coke rate and productivity are greatly influenced by RI and RDI values of sinter. Understandably, the fines generated inside the furnace during reduction affect the permeability of the stack zone, increase the pressure drop and disturb the gas distribution causing channelling of he furnace.

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Sinter Quality and Process of Sintering Iron Ores –

2014-11-21 · Increasing MgO concentrations in the sinter increases the amounts of the spinel (magnesium aluminum oxides) and glassy phases. The presence of MgO in the sinter improves the RDI, because MgO stabilizes magnetite and thus decreases the hematite content, causing a lower stress in the sinter during the hematite to magnetite reduction in the

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why sinter is used in blast furnes - grunlandrosliny.pl

Blast Furnace (pig iron) – Blast furnace (Figure 2) is a process for producing liquid raw iron by smelting pellets or sinter in a reducing environment. The end products are usually molten metal, slag and blast furnace gas. In the reduction process, oxygen (O 2) is taken out of the pellets or sinter. Coke is often used as a reducing agent, as well

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Improvement of sinter productivity by control of

Increase of gangue is not only the factor to influence sinter qualities, but also the factor to increase coke ratio in the blast furnace operation as the increase of slag ratio. Therefore, to cope with the deterioration of iron ore qualities, studies on alternative iron ore resources and development of its utilization technology have been required.

Read More
Steelmaking Slag Beneficiation by Magnetic Separator

2015-1-3 · makes it possible to obtain products that meet the requirements of sintering and blast furnace production. The slags with particle size of -10 mm were enriched by the magnetic separator resulting and increase in Fe grade from 18% to 33%. The use of BOF slag in sinter blend

Read More
why sinter is used in blast furnace

Home > Mining News > what effect magnetic sinter in blast furnace.Blast-Furnace Production the production of pig iron by the reduction smelting of iron ores or pelletized iron-ore concentrates in blast furnaces. Why sinter is used in blast furnace - Answers.

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COMPARISON OF SINTER AND PELLET USAGE IN AN

2020-7-20 · 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 Sinter and pellets are agglomerated forms of iron ore, both suitable for use as blast furnace burden materials. The principle ...

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Sintering and desulphurizing of iron ore materials

2018-6-7 · sinter made from magnetic concentrates is no longer massive but open and cellular in structure, and deserves a preference for furnace use as compared with natural ores. Silicate of iron, which composes heating furnace cinder and is difficult to reduce in the blast furnace, does not occur in the sinter produced by the continuous down-draft ...

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Pellet Degradation & Effect on Blast Furnace

2019-2-8 · From the blast-furnace test, carried out with a burden consisting of 45% of pellets and 45% of sinter with basicity ratio about 2.2, and at constant driving rate, it follows that there is no significant relationship between the disintegration value of the pellets and the blast-furnace

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Copper staves for blast furnaces - KME

2016-3-3 · fluctuations. Blast furnace burden with more than 70 % sinter can result in peak loads of 100,000 to 200,000 W/m 2. While burden with a high percent - age of pellets or lump can generate peak heat loads of over 400,000 W/m 2. Depending on the expected heat load, different cooling elements have to be applied (see table below).

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Effect of FeO Content in Ore on the Properties of

The content and stability of FeO in sinter are the important comprehensive indicators to assessing the sintering production. They not only reflect the quality and energy consumption of agglomerates, but also influence the smelting results of blast furnace. The effects of the FeO content of original ores on the FeO content in sinter and the creating ability of calcium ferrite are discussed in ...

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Adverse effects of 9 elements in iron ore on its

2021-7-12 · In blast furnace smelting, all the copper is reduced into cast iron. 8 Titanium (Ti): it can improve the wear resistance and corrosion resistance of steel. However, during the smelting of the blast furnace, the slag will deteriorate, and about 90% of the titanium will enter into the slag.

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Adverse effects of 9 elements in iron ore on its

2021-7-12 · In blast furnace smelting, all the copper is reduced into cast iron. 8 Titanium (Ti): it can improve the wear resistance and corrosion resistance of steel. However, during the smelting of the blast furnace, the slag will deteriorate, and about 90% of the titanium will enter into the slag.

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COMPARISON OF SINTER AND PELLET USAGE IN AN

2020-7-20 · 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 Sinter and pellets are agglomerated forms of iron ore, both suitable for use as blast furnace burden materials. The principle ...

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Sintering and desulphurizing of iron ore materials

2018-6-7 · sinter made from magnetic concentrates is no longer massive but open and cellular in structure, and deserves a preference for furnace use as compared with natural ores. Silicate of iron, which composes heating furnace cinder and is difficult to reduce in the blast furnace, does not occur in the sinter produced by the continuous down-draft ...

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Effect of alkali on different iron making processes

2017-12-17 · enter blast furnace mainly through the raw materials. The problem mainly occurs because of their circulation of alkali in the blast furnace which leads to their accumulation in the blast furnace. The alkali have effect on the iron ore charge as well as the coke

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The balance of TiTanium and vanadium in The blasT

trate of 200 kg in the sinter mix allowed a sinter of a TiO 2 content from 0,46 to 0,51 % and a V content from 0,056 to 0,058 % to be obtained. The blast-furnace charge for the production of pig iron containing increased contents of titanium and vanadium was composed of sinter

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Improvement of sinter productivity by control of

Increase of gangue is not only the factor to influence sinter qualities, but also the factor to increase coke ratio in the blast furnace operation as the increase of slag ratio. Therefore, to cope with the deterioration of iron ore qualities, studies on alternative iron ore resources and development of its utilization technology have been required.

Read More
Effect of FeO Content in Ore on the Properties of

The content and stability of FeO in sinter are the important comprehensive indicators to assessing the sintering production. They not only reflect the quality and energy consumption of agglomerates, but also influence the smelting results of blast furnace. The effects of the FeO content of original ores on the FeO content in sinter and the creating ability of calcium ferrite are discussed in ...

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Size Segregation of Sinter in Top Bunker of a Bell-less ...

The size segregation of sinter in a top bunker of a bell-less type blast furnace was experimentally investigated by the use of a full scale model as well as a 1/10 scale model and the following results were obtained.The size variation during discharging from the bunker was significantly reduced by the installation of a simple stone box of suitable size at the suitable vertical position in the ...

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Effect of MgO and Basicity on Microstructure and ...

2016-2-3 · The metallurgical properties of iron ore sinter mainly depends on sinter mineralogy and microstructure, which in turn depends on the chemical composition of the sinter mix. In order to meet blast furnace requirement on sinter quality, it is essential to optimize the MgO in sinter mix and sinter basicity to get desired properties.

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Pellet-Sinter Composite Agglomerate of Iron Oxide

P-SCA for use in blast furnace has been developed with Indian iron ore to utilize the micro-fines in sintering. The salient features of the process are as follows: It also uses steel plant's waste materials viz. LD sludge, mill scale etc (5-10%) with iron oxide microfines. The process yields a very good quality sinter even at the lower basicity ...

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