Experience of Using Manganese-Containing Materials in …
ResultThe studies of the effect of manganese contained in the furnace charge when utilizing a combined blast under the EMZ conditions have shown that while operating on a reduced-quality coke, an increase in the MnO content of …
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Development of Pellet-Sinter Composite Agglomerate for Blast Furnace
ResultIn this work, the effect of high Blaine fineness (2700–3250 cm²/g) on the pellets properties has been studied and the optimum parameters to make it usable for blast furnace have been examined ...
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An investigation into the distinctive sintering performance …
ResultThis study is aimed to obtain better-quality Ni–Cr composite sinter for the production of 300 series stainless steel via the sintering-blast furnace process at lower cost. Based on the complementary advantages of limonitic nickel laterite and chromite, co-sintering pot tests of the two ores were conducted in various …
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Effect of Nut Coke-sinter Mixture on the Blast Furnace …
ResultIn meantime modern blast furnaces use nut coke with different amount (10–140 kg/t hot metal) and different grain size (10–40 mm) in the sinter layer to reduce the coke losses. The objective of this paper is to clarify the influence of nut coke on the shaft permeability and sinter reducibility under blast furnace …
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Evaluation of Sinter Quality for Improvement in …
ResultHigh RDI sinter deteriorates gas permeability ation and in operation with hydrogen gas (LNG, H2) in order in the upper part of the blast furnace because the particle to investigate the effects of sinter …
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Effect of Mixed Charging of Nut Coke and Sinter on …
ResultThe effect of hydrogen-rich smelting on the softening-melting behavior of the iron-bearing burden in a blast furnace (BF) was analyzed by simulating the actual burden structure of the BF and by ...
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Agglomeration behaviour of steel plants solid waste and its effect …
ResultProductivity is also calculated in case of sintering by taking +10 mm sinter size. Download : Download high-res image (210KB) Download : Download full-size image; Fig. 3. Top burning bed of sinter of laboratory grade sintering machine. ... Effect of recycling blast furnace flue dust as pellets on the sintering …
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An Overview of Utilization of Blast Furnace and Steelmaking …
ResultE. Crossin, The greenhouse gas implications of using ground granulated blast furnace slag as a cement substitute, Journal of Cleaner Production, 95 (2015) 101â€"108. [29] D. M. Sadek, Effect of cooling technique of blast furnace slag on the thermal behavior of solid cement bricks, Journal of Cleaner …
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(PDF) Impact of Sinter Basicity and Alumina on …
ResultTo increase the sinter proportion (70–80%) in blast furnace, lowering of CaO in sinter mix is a vital parameter to balance the flux supply without affecting the slag volume and …
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Effect of Mixed Charging of Nut Coke and Sinter on …
ResultThe indirect reduction rate in the upper part of the blast furnace was accelerated, and the reduction degree increased when the sinter arrived to the lower part of the blast furnace, which was a very effective factor to reduce the coke consumption of blast furnace. In the high-temperature zone, the solid-state …
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A Review of the Production of Ferromanganese in …
ResultStudies on production of high carbon ferromanganese in blast furnace with high proportion of sinter and improvement in manganese recovery
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Reduction of Iron Ore Pellets, Sinter, and Lump Ore under …
ResultA blast furnace (BF) is the dominant process for making iron in the world. ... The experiments are conducted isothermally with a blast furnace simulator (BFS) high-temperature furnace at four different temperatures (700, 800, 900, and 1000 °C) for 300 min. The experimental atmosphere consists of CO, ... Sinter, …
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Partition of valuable components between slag and metal in the blast
ResultThe 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 ...
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A review of high-temperature experimental techniques used …
ResultThe softening and melting (S&M) under load test is widely used as a laboratory-scale routine test to investigate the behaviour of ferrous burden materials in the cohesive zone (CZ). However, it has been more than 30 years since the last comprehensive review and over that time, operational conditions in large, high …
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Effect of basicity on wu¨stite sinter reducibility under …
ResultA sinter with good metallurgical performance can not only ensure smooth operation of the blast furnace but also reduce the blast furnace fuel ratio and increase the molten iron production.
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Improved operation of a large-scale blast furnace using a …
Result1. Introduction. A large-scale iron-making blast furnace (BF) is one of the core unit operations in the steel industry that currently provides 70% of the hot metal (pig iron) for the worldwide steel production [1].An industrial blast furnace is a huge energy-intensive metallurgical installation with a typical annual production of …
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Effect of manganese furnace dust content in furnace dustfine manganese
ResultThe samples were sintered in a muffle furnace at 1 100°C for 15– 20 min. from publication: Reduction of Zinc Oxide in Manganese Furnace Dust with Tar | Manganese furnace dust is formed when ...
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Quality Improvement of Sintered Ore in Relation to Blast …
ResultTo sustain stable furnace operation under such a difficult condition, the company has concentrated efforts on the improvement of the quality of sinter, especially …
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Blast Furnace Ironmaking
ResultThe sintering process is an important thermochemical process in the blast furnace ironmaking system. It involves the heating of fine iron ore with flux and coke fines or coal to produce a semi-molten mass that solidifies into porous pieces of sinter with the size and strength characteristics necessary for feeding …
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Operation of blast furnaces at high top pressure
ResultI.A. Kuzmtn. (Blast furnace superintendent at the Gherepovets plant) Inthe blast furnace shops of the Cherepovets plant, here are two furnaces of 1007 and 1033 cu m effective volume designed foroperating at a high top pressure of 1.5 atm gage. Since April, 1956, furnace No. 1has been operating at a high top pressure of over …
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Effect of High-Sintering-Temperature Reduction …
Resultcal and technical support for the evaluation of the coke thermal performance and blast furnace application. 2. Experiment 2.1. Sample The samples used in this work were prepared by mixing industrial sinter and coke. This is high-basicity sinter for blast furnace (w(CaO)/w(SiO2) = 1.91). See Table1for its
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Effect of high MgO/Al2O3ratio (1.2 to 2.2) on sintering …
ResultThe sintering pot test was used to investigate the effect of MgO/Al2O3ratio in the range of 1.2 to 2.2 on the sintering behavior of iron ore. The main characterization methods of X-ray diffraction ...
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Blast furnace ironmaking and its ferrous burden quality …
ResultThe integrated iron and steelmaking route involves blast furnace (BF) ironmaking followed by basic oxygen furnace (BOF) steelmaking. The BF uses sinter, pellets, and lump ore as iron-bearing raw materials, and coke and pulverized coal as fuel and reducing agents to produce hot metal with consistent quality for …
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(PDF) Preparation of MgO added iron ore pellets and effects …
ResultThe mode of its addition to the blast furnace changed from, initially, as raw flux in the form of dolomite, to via sinter, with the argument that raw flux demands energy for its decomposition ...
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Blast Furnace
ResultBlast furnace gas is produced during the iron oxide reduction in blast furnace iron making in which iron ore, coke and limestone are heated and melted in a blast furnace and is an indigenous process gas of the steelworks industry (Pugh et al., 2013 ). Blast furnace gas has a high carbon monoxide (CO) content and a low …
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Effect of Recycling Blast Furnace Flue Dust as Pellets on …
Resultwith using the flue dust pellets, while productivity of both the sinter machine and sinter machine at blast furnace yard decreases. Also the vertical velocity of the sinter machine and the weight loss during the reduction of produced the sinter by hydrogen decrease. Keywords: Blast furnace flue dust, Pelletization, Iron ore, …
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Blast Furnace Productivity and the Influencing Parameters
ResultSinter 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. Control of burden distribution plays an important role in the improvement of the productivity of the …
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Hot metal yield optimization of a blast furnace based on constructal
ResultThe 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.
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Manganese Ferroalloys Technology
ResultBlast furnace smelting has serious disadvantages, such as high coke consumption (~1500 to 2000 kg/t of alloy, which is five to six times higher than in …
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High lump use in the blast furnace -implications …
ResultThe basicity required for iron ore sinter is set by blast furnace slag composition requirements, and therefore varies with the proportion lump iron ore in the burden. Increasing the …
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