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Effect Of High Manganese Sinter In Blast Furnace

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Effect of Oxides of Magnesium and Manganese and the ...

Mar 28, 2016 · It was established by laboratory studies and confirmed by factory tests that the filterability of molten blast-furnace slag is affected by the presence of the oxides MgO, MnO, and CaO, which are added to charge that is used to make sinter. The magnitude of this effect depends on the composition of the minerals that contain these oxides.

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(PDF) Effect of Sintering Performance of the Utilization ...

Effect of Sintering Performance of the Utilization of Blast Furnace Solid Wastes as Pellets ... large tonnage of different grades of fer ro-manganese (Medium and High carbon ferro-manganese) and ...

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ERAMET Manganese uses electric furnaces as well ERAMET are ...

The high permeability of the sinter allows an increased blast volume and thus an increased productivity of the blast furnaces, leading to lower specific thermal losses. The high reducibility reduces the fixed carbon consumption. Both effects have been taken into account in a blast furnace model developed by ERAMET Research Center.

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(PDF) Blast Furnace Performance Under Varying Pellet ...

Nov 26, 2018 · The results are based on the effect observed in the blast furnace operation. Discover the world's research. 19+ million members; ... the BF, due to high strength in comparison with sinter.

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A Case Study ofthe Production ofHigh-grade Manganese ...

44 per cent manganese sinter from a feed of 38 per cent carbonaceous manganese are. The use of the 44 per cent manganese sinter resulted in large savings in trans­ port cost per manganese unit, as well as a decreased energy consumption (15 per cent) and an increased manganese throughput in the smelling furnaces producing ferromanganese alloys.

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Evaluation of Sinter Quality for Improvement in Gas ...

Therefore, in the present research, the authors reproduced the atmosphere in the blast furnace during high PCR operation and in operation with hydrogen gas (LNG, H 2) in order to investigate the effects of sinter quality and reducing gas composition on RDI and softening under load, in terms of pressure drop. Based on the results of these ...

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Effect of High Al2O3 Slag on the Blast Furnace Operations

lower part of the blast furnace. So, it will be important to keep good slag fluidity at the blast furnace opera-tions such as, drainage of tapping and keeping good permeability. In order to clarify the effect of high Al 2O 3 slag fluidity on the blast furnace, high Al 2O 3 slag (20%) test op-erations of experimental blast furnace have been ...

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

2.2 Effect of High Ratio Coke Mixed Charging on Blast Furnace Operation 2.2.1 Effect on permeability of cohesive zone If high ratio coke mixed charge is performed in an actual blast furnace, there is concern that the thickness of the coke layer (coke slit) charged between the raw material layers may decrease, deteriorating gas perme-

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Effect of reduction conditions on structure and phase ...

Feb 01, 1999 · The aim of this work was to examine the use of mixtures of high basicity ore sinters and acidic pellets in blast furnace charge. The proportion of high basicity sinters and acidic pellets depends on both the nature and basicity of the latter and is used to obtain desired slag properties as well as sufficient reducibility and mechanical strength of the furnace charge.

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Blast Furnace Productivity and the Influencing Parameters ...

Jun 23, 2013 · Blast furnace productivity greatly depends on the quality of sinter. Sinter is to have optimum grain distribution, high strength, high reducibility, high porosity, softening temperatures greater than 1250 deg C, constant FeO content in the range of 7 % to 8 % and constant basicity.

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Sintering characteristics of manganese ore fines from ...

sintering studies at the R&D Centre of Paramount Sinters Pvt. Ltd. The studies indicated that fluxed sinter with very good strength and porosity could be produced. The sinters showed a high degree of reduction and even metalization was noticed. The chemical and physical characteristics indicated that sinters can be used in ferro manganese furnaces.

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Effect of MgO on Emergence of Blast Furnace Primary Slag ...

Abstract. Based on the furnace burden of high content of Al 2 O 3, the process of softening and melting and the characteristic of primary slag were studied with the increase of MgO content in the sinter and adding some MgO into the pellet.The results showed that the content of MgO in the primary slag increased with the increase of MgO in the sinter and pellet.

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Manganese Distribution between Slag and Metal in the ...

Daily average slag and the corresponding hot metal samples were collected from blast furnace No.3 (1033m3 useful volume) of the Egyptian Iron and Steel Company (EISCO) charged with 100% self- fluxing sinter over a period of two months (from July to August 2015). The analyses of slag and metal were used to investigate the effects of temperature and basicity, defined as CaO/SiO2, on manganate ...

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ERAMET Manganese uses electric furnaces as well ERAMET

The high permeability of the sinter allows an increased blast volume and thus an increased productivity of the blast furnaces, leading to lower specific thermal losses. The high reducibility reduces the fixed carbon consumption. Both effects have been taken into account in a blast furnace model developed by ERAMET Research Center.

Read More

A Case Study ofthe Production ofHigh-grade Manganese ...

44 per cent manganese sinter from a feed of 38 per cent carbonaceous manganese are. The use of the 44 per cent manganese sinter resulted in large savings in trans­ port cost per manganese unit, as well as a decreased energy consumption (15 per cent) and an increased manganese throughput in the smelling furnaces producing ferromanganese alloys.

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Main Features of a Modern High Capacity Blast Furnace ...

Sep 20, 2019 · Fig 1 Major advanced technologies and the features of a modern high capacity blast furnace. Raw materials preparation technologies. Major raw materials preparation technologies include (i) use of sinter with low silica content and high reducibility, (ii) optimizing of coal blending for coking of coals, (iii) blending technology for raw materials, (iv) control of load of harmful elements, (v ...

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Effect of Al2O3, MgO, and CaO/SiO2 on Viscosity of High ...

May 29, 2015 · The effects of Al 2 O 3, MgO, and binary basicity on the viscosity of high alumina blast furnace slag are studied systematically at the temperatures of 1773 K and below using the orthogonal experimental design method.The results show that, at fixed binary basicity (CaO/SiO 2) between 1.1 and 1.2, higher Al 2 O 3 content increase the slag viscosity due to the polymerization of the aluminate ...

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Effect of reduction conditions on structure and phase ...

Feb 01, 1999 · The aim of this work was to examine the use of mixtures of high basicity ore sinters and acidic pellets in blast furnace charge. The proportion of high basicity sinters and acidic pellets depends on both the nature and basicity of the latter and is used to obtain desired slag properties as well as sufficient reducibility and mechanical strength of the furnace charge.

Read More

Blast Furnace Productivity and the Influencing Parameters ...

Jun 23, 2013 · Blast furnace productivity greatly depends on the quality of sinter. Sinter is to have optimum grain distribution, high strength, high reducibility, high porosity, softening temperatures greater than 1250 deg C, constant FeO content in the range of 7 % to 8 % and constant basicity.

Read More

Application of High Ratio Coke Mixed Charging Technique

2.2 Effect of High Ratio Coke Mixed Charging on Blast Furnace Operation 2.2.1 Effect on permeability of cohesive zone If high ratio coke mixed charge is performed in an actual blast furnace, there is concern that the thickness of the coke layer (coke slit) charged between the raw material layers may decrease, deteriorating gas perme-

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Manganese Sinter Production with Wood Biomass Application ...

A large amount of finely dispersed manganese ore left after benefication operations or blown out from the furnaces is unsuitable for direct use in electric furnaces and blast furnaces, therefore it is necessary to granulate it in order to have the efficient use of its fine ore particles in metallurgy. To make our research more of practical use, we found it is reasonable not only work over ...

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Full-Scale Experimental Test Production of High-Basicity ...

Nov 23, 2020 · However, the strength specifications of the sinter were improved: The concentration of 0–5-mm fines decreased from 19.32% to 15.89%, and the yield of +5 mm size class in a drum test increased from 65.9% to 72.3% through optimization of the sintering process parameters. The use of high basicity sinter in blast-furnace smelting reduced the ...

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High temperature applications - IPCO

High creep rupture strength; Steel belts for sintering. Steel belt sintering (SBS) furnaces provide a highly efficient means of converting different ores into pellets ores. These include ferrule chrome, niobium, iron, manganese and nickel, as well as steel plant dust. The material is conveyed through the furnace on a perforated steel belt.

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Off-gas Dust in an Experimental Blast Furnace Part 2 ...

where fines were blown to the furnace top. Sinter was either unreduced or reduced to magnetite. The particle size distri-bution showed that approximately 25% of the material was finer than 0.5mm. Gupta et al.3) studied coke at high tem-peratures and its influence on coke fines in the blast furnace dust from three different blast furnaces.

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Influence of MgO in form of magnesite on properties and ...

The effect of MgO on blast furnace slag is fairly well established, but its effect on sintering and sinter quality is unclear especially on high chromium, vanadium, titanium magnetite (Cr–V–Ti magnetite) sinters. In the present study the effect of MgO, in the form of magnesite (MgCO 3), on sintering rate was calculated. Cr–V–Ti ...

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Manganese Sinter Production with Wood Biomass Application ...

A large amount of finely dispersed manganese ore left after benefication operations or blown out from the furnaces is unsuitable for direct use in electric furnaces and blast furnaces, therefore it is necessary to granulate it in order to have the efficient use of its fine ore particles in metallurgy. To make our research more of practical use, we found it is reasonable not only work over ...

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Characterisation of iron ore sinter and its behaviour ...

Jul 18, 2013 · The sinter is mainly composed of unassimilated hematite, precipitated hematite and magnetite phases and glassy calcium silicate (slag). Manganese was concentrated in magnetite phase forming a solid solution of 'magnetite–jacobsite spinel'. Calcium ferrites were not detected in the sinter due to its low basicity (CaO/SiO2≈1).

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6. Blast Furnace Products.pptx - Modern Iron and ...

• To a large extent, silicon, manganese, phosphorus and sulphur contents of hot metal are influenced by the amount of input of these elements into a blast furnace. • About 60% of the silica comes from the oxide feed (lump ore, sinter and pellets), and the remainder from the coke ash.

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(PDF) Introduction of manganese in pellet batch as a means ...

At the same time, introducing manganese of Titanomagnetites, I.P. Bardin i razvitie metallurgii v concentrate in the sinter batch cannot be expected to SSSR (I.P. Bardin and the Development of Metallurgy improve blast furnace smelting beyond the use of Mn in the Soviet Union), Moscow: Nauka, 1976, pp. 371– as a component in the furnace batch.

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Factors Controlling High-temperature Zone Resistance to ...

Iron ore sintering is a very important process in steel plants, which can provide iron-bearing material for blast furnace. With world steel production continually increasing, especially in Asian-Pacific region, the demand for sinter in blast furnace continues to increase. In order to meet the demand and keep economic benefit, sinter productivity

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High temperature applications - IPCO

High creep rupture strength; Steel belts for sintering. Steel belt sintering (SBS) furnaces provide a highly efficient means of converting different ores into pellets ores. These include ferrule chrome, niobium, iron, manganese and nickel, as well as steel plant dust. The material is conveyed through the furnace on a perforated steel belt.

Read More

Off-gas Dust in an Experimental Blast Furnace Part 2 ...

where fines were blown to the furnace top. Sinter was either unreduced or reduced to magnetite. The particle size distri-bution showed that approximately 25% of the material was finer than 0.5mm. Gupta et al.3) studied coke at high tem-peratures and its influence on coke fines in the blast furnace dust from three different blast furnaces.

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AIST - Digital Library

A Revolution in Blast Furnace Cooling. A Study of High-Temperature Imperfections Detected on Light-Gauge Coated Sheet Steel. ... Non-Metallic Inclusion Change in the Third-Generation AHSS With High Manganese, Aluminum and Silicon Contents ... Optimizing Sinter Chemistry to Counter Alumina Effect.

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Steel - Basic oxygen steelmaking | Britannica

The charge. When oxygen contacts blast-furnace iron, a great amount of heat is released by the ensuing exothermic reactions, especially the oxidation of silicon to silica, so that using only blast-furnace iron would result in a liquid steel temperature too high for casting.Therefore, before the hot metal is added, a specific amount of scrap is charged into the furnace.

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INTER-INFLUENCING FACTORS IN AFFECTING BF COKE RATE ...

A blast furnace (BF) is a multivariate system which is subjected to a large number of ... Functional Representation of a Blast Furnace The effect of variables on the response can be well represented to a certain degree of ... Low ash & high sinter period (3-year monthly average data) Avg. (CV) Range Avg.(CV) Range ...

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RU2119958C1 - Method of washing blast furnace hearth ...

FIELD: ferrous metallurgy. SUBSTANCE: hearth is washed with washing agglomerate sintered from charge containing, wt %: fire scale, 82-84; iron-ore concentrate, 7.6-8.2; manganese ore, 4.3-4.6; crude fluxes (limestone-dolomite mixture), ≤ 4.0. Washing agglomerate is loaded into furnace by substituting ore components in 3 to 20 charges daily while ore to coke ratio is reduced by 5-10%.

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AIST - Digital Library

Blast Furnace Campaign Extension at CherMK – Severstal ... Compressive Strength of Bonding Phase and Its Effect on Strength of Sinter During Sintering Process. ... Nitrogen Removal from Manganese-Alloyed Advanced High-Strength Steel (AHSS) in a Tank Degasser: Kinetic and Thermodynamic Model.

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Blast Furnace Anatomy #1 – To the Heart of Steelworks ...

Now, the blast furnace will melt all the raw materials and extract only the iron (Fe), where coke and pulverized coal fuel the raw materials. Coke is a grey, hard, and porous fuel made by heating coal up to 1000℃. Inside the furnace, coke is the main heat source melting various materials.

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