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 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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nickel ore sintering kiln design
Nickeloxide sinter cake 3035 up to 50 Blast furnace''s common specifications are mainly: m², m²,2 m², m², m², m²,8 m²,10 m²,11m² and so company can design and produce different specification and structures blast furnace based on customer''s actual demand.
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Effect of alkali on different iron making processes
Dec 17, 2017· 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 which inturn effects the entire operation and its efficiency.
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Steel Basic oxygen steelmaking | Britannica
The charge. When oxygen contacts blastfurnace iron, a great amount of heat is released by the ensuing exothermic reactions, especially the oxidation of silicon to silica, so that using only blastfurnace iron would result in a liquid steel temperature too high for, before the hot metal is added, a specific amount of scrap is charged into the furnace.
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CHAPTER11 FUNDAMENTALS OF IRON ORE SINTERING
High competitiveness amongst the iron and steel industries has forced the operators to radically modify their operation in several fronts including the raw material preparation through sintering. In this regard It is essential to understand the sintering fundamentals. EFFECT OF SINTER AND ITS QUALITY ON BLAST FURNACE (BF) PERFORMANCE
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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 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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A review of the production of ferromanganese in blast furnace
Nov 10, 2014· Blast furnace Mn recovery Slag high basicity (upper limit: avoid formation) high MgO% Al2O3 <15% to avoid formation High temperature where liquid metal and slag drip through coke (here most of the reduction occurs) sinter must have the required chemistry and a short range of softening temperature air blast must be injected ...
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Influence of sinter basicity (CaO/SiO2) on low and high ...
Iron ore sinter, constituting a major proportion of blast furnace burden, significantly impacts the blast furnace performance. The chemical composition of iron ore fines, particularly alumina, sinter basicity and sinter MgO together with the thermal conditions that sinter blends are subjected to play an important role in the formation of mineral phases in sinter.
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Effect of copper, sulfur, arsenic and antimony on silver ...
The sinter produced in Mexico has historically been different from that around the world in which the Mexican sinter contains high silver and bismuth concentrations. CHAO et al [6] and MORRIS et al [7] reported the gas composition, temperature and pressure as a function of the height above the tuyeres in a commercial lead blast furnace.
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Effect of basicity on wüstite sinter reducibility under ...
(2014). Effect of basicity on wüstite sinter reducibility under simulated blast furnace conditions. Ironmaking Steelmaking: Vol. 41, No. 6, pp. 418429.
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iron ore pellets versus sinter in blast furnace
iron ore pellets versus sinter in blast furnace – Grinding ... How a Blast Furnace Works AISI: American Iron and Steel. The iron ore, pellets and sinter then become the liquid iron produced in the blast furnace with any of ...
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(PDF) Blast Furnace Performance Under Varying Pellet ...
Particularly, the flux optimization becomes more important when the furnace is operated at either high pellet [18][19] [20] or high sinter [21] operation. Therefore, the present attempt is made to ...
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Effect of basicity on wüstite sinter reducibility under ...
(2014). Effect of basicity on wüstite sinter reducibility under simulated blast furnace conditions. Ironmaking Steelmaking: Vol. 41, No. 6, pp. 418429.
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Influence of high grade iron ore usage on the performance ...
of using high grade ore to the performance of Sintering and Blast Furnace processes in terms of energy savings, CO 2 emissions, and logistic benefits to the mills in the region. Keywords: high grade iron ore, sinter, blast furnace, Brazilian fines, pot sinter, Alumina * Msc. Metallurgical Engineer RD Technical marketing – Vale Brasil
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Parameters Affecting the Production of High Carbon ...
In the high carbon ferromanganese making process at SMC, different local manganese ores and imported manganese sinter are blended along with the reducing agent (coke) and flux materials (dolomite and limestone) are mixed outside of the furnace (often called charge mix).
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OPERATION AT HIGH PELLET RATIO AND WITHOUT .
OPERATION AT HIGH PELLET RATIO AND WITHOUT EXTERNAL SLAG FORMERS – TRIALS IN AN EXPERIMENTAL BLAST FURNACE Nicklas Eklund1, Bo Lindblom1, JanOlov Wikström2 1LKAB, Box 952, SE971 28 Luleå, Sweden 2MEFOS, Box 812, SE971 25 Luleå, Sweden Abstract Blast furnaces that operate with pellet and sinter are normally using high basicity sinter
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The Effect on Blast Furnace Process of Changed Pellet Size ...
sinter plant was closed down. The average pellet burden is two thirds MPBO (Olivine pellets from LKAB ... Manganese slag 8 6 kg/thm Coldbonded briquettes 3 51 kg/thm ... The only effect that can be seen on the blast furnace process is a decrease in gas utilisation of two units.
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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 operations 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 operations of experimental blast furnace have been ...
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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 blastfurnace 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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RUC1 Method of washing blast furnace hearth ...
FIELD: ferrous metallurgy. SUBSTANCE: hearth is washed with washing agglomerate sintered from charge containing, wt %: fire scale, 8284; ironore concentrate, ; manganese ore, ; crude fluxes (limestonedolomite mixture), ≤ Washing agglomerate is loaded into furnace by substituting ore components in 3 to 20 charges daily while ore to coke ratio is reduced by 510%.
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Recent Progress in Ironmaking Technology for 2 Mitigation ...
material for the blast furnace, coke ovens that produce coke, which is important as a reducing agent, and hot stoves that generate the high temperature (approx. 1 200°C) hot blast blown into the blast furnace. Large amounts of CO2 are generated by the reduction reaction (Fe2O3+3CO → 2Fe+3CO2) in the blast furnace and the
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Factors affecting Coke rate in a Blast Furnace – IspatGuru
Jun 29, 2014· Blast furnace coke rate reduces by around 2 % with the blast temperature increasing by 100 deg C. High top pressure also reduces the coke rate in the blast furnace. With every increase of top pressure of the blast furnace by kg/sq cm there is a reduction of around % in the coke rate.
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Production of HighCarbon Ferromanganese in Blast Furnace
Nov 14, 2013· Partial reduction of the higher manganese oxides may also occur during sintering. Blast Furnace Operation In comparison to iron making, high gas temperatures are required in ferromanganese production because the reduction of manganese (II) oxide takes place at a higher temperature than is required for the reduction of wustite.
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