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The Production of IF Steels using RH Vacuum Degassing - SMS… pdf

various solutions for hot metal pretreatment facilities for desiliconisation, dephosphorisation and/or desulphurisation. Introduction. Liquid iron, supplied direct from the blast furnace is normally delivered to the steelmaking plant in refractory lined torpedoes or ladles. The choice of transport vessel is dependent upon.

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Reprocessing of metallurgical slag into materials for…

Several methods of reprocessing metallurgical (blast furnace) slag into materials for the building industry, based on melting aggregates with submerged combustion, were developed and tested. The first method involves melting hot slag with some additives directly in a slag ladle with a submerged gas-air burner, with the...

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Electric Arc Furnace Slag | ASA | Australasian (iron &…

EAFS is produced in an Electric Arc Furnace. The slag is dark grey in colour and is characteristically harder than blast furnace slag (BFS). ... On tapping, steel is drained from the furnace via a submerged taphole and the furnace is back tilted to prevent slag entering the steel ladle. Directed into pits adjacent to the process,...

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Steel slag recycling - Harsco Metals &…

Integrated steelmakers sell blast furnace slag - which is naturally cementitious in quality - into the cement industry. In addition, the slag from the BOS plant such as converter slag and ladle slag has useful properties once weathered to allow for expansion of the lime-bearing material. EAF slag is a strong and durable material...

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Slag from Pasminco's lead-zinc smelters, which is… pdf

Slag from Pasminco's lead-zinc smelters, which is rich in zinc, is transferred in thirteen tonne capacity ladles from the blast furnace to the slag fuming furnace. The cycle time is about three hours. The. Study Group was asked to examine whether heat could be conserved by some insulation strategy, without at any stage...

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Hyttsten.com - Merox

The raw material for Hyttsten and Hyttsand is blast furnace slag, which is produced parallel to iron manufacture in blast furnaces. At the SSAB plants approximately 500,000 tons of blast furnace slag is produced per annum. The slag which floats above the iron is tapped into a slag ladle through a runner. While draining, the...

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CO2 mineral sequestration with the use of ground granulated… pdf

6 Apr 2017 ... electric arc furnace slag, ladle furnace slag accelerated carbonation. 20−40. − the lowest pH, decreased leaching: Ca, Cu, Ba, Fe, Mn, Pb. Huijgen et al. ... blast furnace slag. EDTA. CH3COOH. HCl. −. − capture CO2 as 0.09 kg/kg nienczewski et al. 2008 mixture of rude carbon steel slag from the electric.

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Disposal of Blast Furnace Slag - Workington Iron and…

Prior to the second world war, the typical slag ladle and carriage was of the two axle, Dewhurst pattern in widespread use throughout the British Iron and Steel industry. During wartime blackout conditions it was necessary to secure a large fleet of 4 axle bogie slag ladles and carriages manufactured by Ashmore Benson...

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Slag - Jernkontoret

30 Sep 2016 ... In total, between 1–1.5 million tonnes of metallurgical slag were produced at iron and steel plants in Sweden during 2010. This production was distributed among a series of different slag types: blast furnace slag, LD slag, electric arc furnace slag, AOD slag, ladle furnace slag and slag from desulphurisation.

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Slag - Wikipedia

Slag is the glass-like by-product left over after a desired metal has been separated (i.e., smelted) from its raw ore. Slag is usually a mixture of metal oxides and silicon dioxide. However, slags can contain metal sulfides and elemental metals. While slags are generally used to remove waste in metal smelting, they can also...

Blast Furnace Slag - National Slag Association pdf

16. Types of Slag. ➢ Iron Blast Furnace Slag (BFS). • Air Cooled. • Granulated. • Pelletized. ➢ Steel Furnace Slag (SFS). • Basic Oxygen Furnace (BOF). • Electric Arc Furnace (EAF). ➢ Other Slags. • Foundry. • Cupola. • Ladle Metallurgical Furnace...

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Canadian Slag Association

Blast Furnace Slag has been used in Canada as a road and plant base material since the early 1900's. Steel Slag was originally used in the 1970's and and consisted of premium surface course HMA. There was extensive use in 1980's and by the 1990's there was in excess of 488,000 tonnes consumed in a variety of...

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Flight Dynamics and Sensible Heat Recovery of Granulated… pdf

20 May 2015 ... Then the pouring liquid slag was granulated into particles by the granulator and collector with the diameter of 2.4 m and height of 1.7 m. Fig. (1). Photo of experimental apparatus. 2.2. Results and Discussions. When liquid slag was poured from the turnover ladle, molten blast furnace slag fell from tundish to...

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Handling of Hot Metal in Blast Furnace Iron Making |…

10 Feb 2016 ... In 1915, there was first use of the torpedo type ladles. These railroad mounted ladles carried 90 tons but were increased to 150 tons by 1925. Handling of hot metal in the cast house. The main trough, iron runner, slag runner, tilting runner and others are employed on the cast house floor to transfer the HM...

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Blast Furnace 'Elisabeth' | Bilston Iron &…

Continuing on down the hill brought you directly in front of the slag side of the cast house and the railway line on which the slag 'pots' (ladles) would be hauled to position on. The cast house floor itself was some twenty or thirty feet above ground level. When the furnace was flushing slag, a train of pots would be in position...

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Kein Folientitel - Euroslag ppt

are produced from blast furnace, converter or ladle slags. Careful selection and processing of appropriate slag qualities ensure an effective activity in the soil. Application of silicate materials neutralises soil acidity and supplies the soil with plant nutrients. Fig. 1: Production of fertilisers from Blast Furnace and Steel...

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Possible Uses of Steelmaking Slag in Agriculture: An ... -… pdf

16 Mar 2012 ... refining operation, after steel pouring into a ladle, the slag is poured into a vessel and is subsequently tapped .... discharged to a cooling yard or to a slag ladle and they are naturally cooled with moderate sprinkling. ... Blast furnace slag can be used also in agriculture because of its high sorption capacity of.

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Dneprotyazhmash

The traction slag cars with the ladles for blast-furnace slag and the ladles for steelmaking are produced. The slag car consists of: bearing frame; railway carriages (two biaxial railway carriages); ring support ladle; ladle tilting mechanism; automatic coupler. Advantages: enforced axle bearings. The slag car is supplied with...

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GLOSSARY: Euroslag

Basic Oxygen Furnace (BOF) - also known as LD-converter- is a steel making furnace, in which hot metal from the blast furnace – with some amounts of steel scrap- ... Product obtained by milling of basic oxygen furnace slag (BOS) as well as by sieving of disintegrated basic oxygen furnace slag (BOS) or ladle slag from the...

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Characterization of ladle furnace basic slag for…

However, the properties of this slag are far from uniform, and it is possible to distinguish between four broadly different types: blast furnace slag (BFS), basic oxygen furnace slag (BOFS), electric arc furnace (EAF) acid slag and ladle furnace (LF) basic slag, also called refining slag. Each type of slag has its own...

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Industrial uses of slag (the use and re-use of iron and…

18 Jul 2013 ... With respect to steelmaking slag, emphasis has in recent years been placed on hot metal treatment before refining and ladle treatment after decarburisation. The bulk removal of silicon, phosphorous and sulphur from the hot metal product of the blast furnace by specially designed slags prior to refining in a...

The use of ladle furnace slag for the removal of hexavalent… pdf

ternative solution regarding environmental pollution [8]. The main slag types generated from the iron and steelmaking industries are classi- fied as follows: (i) blast-furnace slag (iron- making slag), and (ii) steel-furnace slag: (a) basic-oxygen-furnace (BOF) slag, (b) electric-arc-furnace (EAF) slag, and (c) ladle.

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Transport ladle - Rath Group

A profitable and safe transport of molten iron from the blast furnace to the steelplant with torpedo, tube or transfer ladles is virtually inconceivable without an optimal ... refractory castables, ramming masses and gunning materials, withstanding the erosion of molten iron and blast furnace slag during aeration and deaeration.

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Characteristics and cementitious properties of ladle…

Since ladle slag fines contain a high content of free CaO, they cannot be used to replace Portland cement due to potential soundness problems. In this study, 40% of ground blast furnace slag by mass was blended with 60% of those ladle slag fines samples to make blended cement mass. Cementitious property of such a...

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Utilization of ironmaking and steelmaking slags pdf

converter refining, from electric arc furnace processes and from ladle furnace processes. the slags from other steelmak- ing processes, from tundish of continuous caster and from pig iron treatment processes are not included in this paper. Blast fUrnace slag. Besides pig iron blast furnace produces two important by-products...

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Recycling of ladle furnace slags - Research Online -… pdf

Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or stocked. There is abundant literature on the subject of reuse and recycling of blast furnace(BF), basic oxygen furnace(BOF), electric arc furnace(EAF). However, due to the fact that ladle furnaces(LF) have only been.

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ladle refining and slag conditioning - Magnesita… pdf

definition applies to smelting operations and primary steelmaking operations (blast furnace or ferrochrome smelting). In the blast furnace slag originates from the gangue in the ore, ash in the coal, and the fluxes (lime, doloma, Al2O3) that were added to melt the gangue and coal ash so that the slag can be tapped from the...

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Ladle Furnace Slag in Construction | Journal of Materials…

Ladle furnace reducing slag is a common byproduct in steelmaking of carbon and low alloy steels. After air cooling and weathering over several days, this material is completely ground into fine white particles. Physical, chemical, and crystalline characterizations were performed in order to verify possibilities for its direct...

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Iron and Steel Slag - USGS Mineral Resources… pdf

consisting essentially of calcium silicates and other bases that is developed in a molten condition simultaneously with iron in a blast furnace." To the casual observer, one of the most striking features of an iron and steel plant is the site of a mountainous slag pile that presents a continuous display as ladle after ladle pours its...

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Solidification Conditions to Reduce Porosity of Air-cooled…

In this study, air-cooled slag manufactured by the cooling yard method was investigated. At the yard studied here, the blast furnace generated 300–400 t of molten slag in one tap. The molten slag was transported to the cooling yard by slag ladles,...

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Characterization of Ladle Furnace Slag from Carbon Steel…

1 Aug 2013 ... There are four types of iron and steel industry slags, namely, the blast furnace (BF) iron slag, the basic oxygen furnace (BOF) the steel slag, the electric arc furnace (EAF) steel slag, and the ladle furnace (LF) basic slag, also called the secondary refining slag or the white slag. The ladle furnace basic slag is...

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Steel Slag - Material Description - User Guidelines for…

In addition to slag recovery, the liquid furnace slag and ladle slags are generally processed to recover the ferrous metals. This metals recovery operation (using magnetic separator on conveyor and/or crane electromagnet) is important to the steelmaker as the metals can then be reused within the steel plant as blast furnace...

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Reaction of iron and steel slags with refractories -… pdf

Slag corrosion and erosion has been a major wear factor for refractories wear in contact with molten iron and steel. In blast furnace ironmaking, the slag/iron interface plays a more important role than does the slag/refractory interface. On the other hand in steelmaking, the slag in the ladles and tundish predominantly affect...

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Prämab: Transport Vehicles, Ladle Transport Cars

Metallurgical Vehicles, Ladle Cars, Slag Cars, Coil Cars. Manufacturing optional either according to our in-house engineering or according to the basic- and/or detail engineering of our customer: Ladle Transport Car; Metallurgical Vehicles; Ladle Car; Tundish Transfer Car; Slag Ladle Car; Hearth Furnace Bogie; Scrap...

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The use of ladle furnace slag for the removal of hexavalent…

30 Aug 2016 ... The ladle furnace slag is a by-product of the steel industry. Its adsorption potential for the hexavalent chromium ions from aqueous solutions was examined, and the results are presented in this paper. The equilibrium modeling of an adsorption proces was carried out and the equilibrium parameters were...

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What is Slag? | Australian Steel Mill Services

Molten iron runs into torpedo ladles that are on rail tracks. Blast Furnace Slag is a co-product of the iron making process. It is removed from the blast furnace and allowed to cool. ASMS then further process and market the blast furnace slag into useful products for the construction industry such as concrete aggregates, road...

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Steel Authority Of India Ltd. vs Commissioner Of C. Ex. on 4 March…

When ladles are broken, iron deposited in ladles is recovered as skull scrap. This scrap of iron viz. CI skull scrap arises in Ladle Breaking Yard out of molten iron and contain only iron. Similarly, the slag arising at the top of the blast furnace is also tapped and removed in the ladles to slag dump yard. This slag also contains...

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Coating Formation in Transport and Casting Ladles ... -… pdf

It is possible to segregate the slag from the hot metal at blast furnace discharge by modifying the design and lining of the transport channels. The coat ing thickness on the hot metal in the transport ladles prior to transfer to the mixer or casting ladles fluctu ates widely. At Russian metallurgical enterprises 0.2–. 0.6% (or more)...

note on ladle brick1 - Wiley Online Library pdf

Refractory work2 in a steel department begins with the lining of ladles used in transporting the molten metal from the blast furnace to a metal mixer, Bessemer .... NOTE ON LADLE BRICK. 825 the slag test. The slag test, calling for exposure of five sides of the brick to the temperature of molton slag badly overfires the brick.

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Steel Furnace Slag | ASA | Australasian (iron & steel)…

The BOS vessel is an open-topped container with a removable cover, in which approximately 50 tonnes of steel scrap – in addition to some 200 tonnes of molten iron brought direct from the blast furnace in brick lined ladles – is placed. An oxygen lance is lowered into the vessel and a violent reaction takes place. Lime is...

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