Our resources of ladle furnace slag


What is Slag? - Canadian Slag Association

Ladle Slag Raked Slag Clean up Slag from furnace pits. There are different sources - BOF vs EAF Steelmaker does affect slag quality Why is the CSA Interested in OPSS? Ontario produces ~80% of Canada's 16 M tonnes of steel Cannot make steel without making slag ~1.5 M tonnes BF slag ~1.2 M tonnes "Steel Slag" Appropriate specifications for the appropriate use of slag aggregates Technical …

Chemical wearing mechanism of refractory materials in …

* Riku Antero Mattila,University of Oulu,Laboratory of process metallurgy,P.O. BOX 4300,FIN-90014,OULUN YLIOPISTO,Finland. Tel: +358 8 553 1011 Fax: +358 8 553 2339. E-mail: [email protected] Wearing of the ladle slag line is the biggest refractory material problem with …

"Use of Ladle Furnace Slag as Filler in Hot Asphalt …

Worldwide, recycling of ladle furnace slag (LFS), one of the waste produced by ironmaking and steelmaking industries, actually represents a big challenge which involves different field of material and construction industry.

Recycling of ladle furnace slags - Research Online

Recycling of ladle furnace slags Abstract Ferrous industry slag is waste product of all steelmaking manufactures. These materials should be reused or

Ladle Metallurgy | ispatguru.com

A ladle furnace is used to relieve the primary process of steel making of many of the secondary refining operations. The main functions of a ladle furnace are as follows. Reheating of liquid steel by electric power which is conducted by graphite electrodes. Homogenization of steel temperature and chemistry through inert gas rinsing. Formation of slag layer that protects refractory from arc ...

Research Article Characterization of Ladle Furnace Slag ...

e ladle furnace slag is a nonhazardous industrial waste because the ecotoxicity evaluation by its eluate has shown that the LF slag does not contain constituents which might in any way a …

Vacuum Degassing of Steel - Vacuum Furnace …

Two methods of vacuum degassing: ladle degassing and stream degassing are discussed here. Ladle Degassing During steel manufacturing, the molten steel is poured from the melting furnace into a vessel referred to as a teeming ladle (Fig. 2).

Ferrous Slag – general information - Euroslag

secondary metallurgical slag, e.g., ladle furnace slag (SECS) other slags, e.g. de-sulphurisation slag Through careful selection of raw materials, maintaining a suitable process route, tightly controlled manufacturing procedures, appropriate cooling treatments a range of high quality construction, agricultural and other slag products are formed for use in large number of important applications.

Characterization of Ladle Furnace Slag from Carbon Steel ...

A promising type of steel slag for applications is the ladle furnace (LF) slag, which is also known as the basic slag, the reducing slag, the white slag, and the secondary refining slag. The LF slag is a byproduct from further refining molten steel after coming out of a basic oxygen furnace (BOF) or

Steady mathematical model of ladle furnace heat work

Adding ingredients into the ladle furnace causes thermal effect due to heating and melting, decomposition of metal compounds of ingredients, stirring with steel and slag, oxidation and metal transition into the slag [5, 6].

Fundamentals of Eaf and Ladle Slags and Ladle Refining ...

Slag foaming in the electric arc furnace (EAF) has not only lowered refractory and electrode … II) Introduction to slag fundamentals a) What is slag? b) The functions of slag c) The building blocks of slag d) Slag calculation example e) Slag basicity and optical basicity f) The fluxing effect and the concepts of solidus and liquidus temperatures g) The slag balance h) Slag requirements and a ...

OPTIMIZATION OF LADLE FURNACE SLAG FOR USE ... - …

Abstract. Ladle furnace slag is a by-product of the steel industry, deriving from the second stage of the production process, which presents some cementitious properties, mainly due to its high CaO content.

Efficiency of Furnace Slag Cutoff in the Process of Steel ...

Efficiency of Furnace Slag Cutoff in the Process of Steel Reladle A. N. Smirnov1, K. E. Pismarev2, S ... use of ladle-furnace units and vacuum vessel [1, 2]. New high-basic slag is built up to provide the maximum efficiency of refining process in the ladle. Upon that, slag mass entering the ladle from steelmaking unit is suggested to be minimized in this flow diagram. This slag reduces ...

Analysis of Refining Processes in Steel Ladle Treatment

Analysis of Refining Processes in Steel Ladle Treatment I. D. Buga1, A. I. Trotsan2, B. F. Belov2, O. V. Nosochenko2, I ... ladle slag. These slags are formed from the liquid furnace slags that enter the ladle when metal tapping from a melting unit and in the process of adding reduction alloys, ferroalloys, solid slag-forming mixtures consisting of precalcined lime, calcium fluoride and other ...

OPTIMISATION OF THE SLAG MODE IN THE LADLE DURING THE ...

The process of forming ladle slag within secondary metallurgy depends on the quantity of the used slag-making agents (CaO and the fluxing agents based on Al 2O 3), the method of steel deoxidation, the intensity of stirring, the corrosion (wear) of the ladle lining and the quantity of the overflowing slag. A formed mixture of individual oxides represents slag, the composition of which ...

EVALUATION OF LADLE SLAG AS A POTENTIAL MATERIAL FOR ...

paper provides an overview of possible uses of ladle slag (the slag from a ladle furnace and vacuum-oxygen-decarburization processes). As a preliminary research, ladle slag …

Optimization of Steel Production: Ladle Furnace Slag and ...

The application of the slag model at the ladle metallurgical facility can increase the life of the refractory and can result in reduced usage of additives to generate sufficient MgO and CaO.

RECYCLING OF STEELMAKING SLAG FROM ELECTRIC ARC FURNACE

treatment in ladle furnace. This process produces slag with only small variations in composition and properties. The aim of the work presented in this contribution was to study the possibilities of EAF slag recycling into the refining – remelting process in EAF and to recognize all possible positives and negatives of the recycling. Though electric arc furnaces used in foundries producing ...

Control of Slag and Insoluble Buildup in Ladles, Melting ...

Slag Composition: The composition of furnace and ladle slag is often very complex. The slags that The slags that form in electric furnace melting result from complex reactions between silica …

Control of Gas Bubbles and Slag Layer in a Ladle Furnace ...

ring methods in a ladle furnace.1 The strong slag/metal reaction with a high gas flowrate is preferable for desulfurization. The bubble cleaning effect with a low gas flowrate has also been widely utilized to remove inclusions. An electromagnetic stirrer (hereafter EMS) can create an effective stirring in the melt while keeping the whole melt surface covered by the slag layer. As a result of ...

Steel Slag - Material Description - User Guidelines for ...

These different types are referred to as furnace or tap slag, raker slag, synthetic or ladle slags, and pit or cleanout slag. Figure 18-1 presents a diagram of the general flow and production of different slags in a modern steel plant.

Secondary Refining - American Iron and Steel Institute

A Ladle Furnace is used to relieve the primary melter of most secondary refining operations, and its primary functions are: § Reheating of liquid steel through electric power conducted by graphite

(PDF) Recycling of ladle slag in the EAF: A way to improve ...

Electric arc furnace slag (EAFS) was used as coarse aggregate and ladle furnace slag (LFS) as fine aggregate and filler. Initially, the properties of both slags and their suitability to be used in ...

LF – Ladle Furnace - meltshop365

LF – Ladle Furnace meltshop365 LF – Intelligent process automation for ladle furnaces meltshop365 for ladle furnaces ensures reproducible and documented quality and efficient and ergonomic use of resources through intelligent process automation.

A way to reduce environmental impact of ladle furnace slag

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 ...

The processed electric arc furnace ladle slag order 2014

slag: • a written statement of compliance certifying that all thegenerator requirements set out in this order have been met; • a copy of the electric arc furnace ladleslag exemption, or a link to the EPA