The ladle furnace slag after rapid air cooling (hereinafter referred to as CLFS) used in the experiment was the LFS discharged from the process of refining-aluminum-stabilized steel in a ladle furnace, which was heated to 1450 °C in the furnace and cooled rapidly by air-quenching system [31]. ... Steelmaking Slag Recycling as Raw Material and ...
Similarly, the internal circulation of refining slag during steelmaking includes its utilization as a flux in other smelting processes (such as those conducted in Linz–Donawitz and electric arc furnaces) and recycling in a ladle refining furnace.[15,16,17,18,19,20,21] A particular slag can be efficiently recycled by adjusting its chemical ...
While some steelmaking slags have been widely characterised and, to a certain extent reused, ladle furnace (LF) slag is used in different applications because of its specific …
Study of Recycling Potential of Ladle Furnace Slag (LFS) form Production Process of Hot Rolled Coil Steel มิตรชัย รัตนวงศ$*, เทอดพงศ ศรีสุขพันธุ ... Keywords: Ladle furnace slag, Ready mixed concrete 748 . HS-183
Slag is a by-product formed in most metallurgical process. During the steelmaking process a large amount of slag is produced, which becomes a source of waste, which in many instances is land filled. Such areas filled with waste materials have become a significant source of pollution. Slag recycling is then becoming important in recent years.
This article investigated the cradle-to-gate environmental impact of granulated blast furnace slag (GBFS) produced in the steel industry and replacement of blast furnace (BF) slag (50%) in place of clinker in Portland slag cement using …
The construction industry is a potential area that may recycle ladle slag as a sustainable replacement to cement binder, thereby reducing the consumption of cement, conserving natural resources, and alleviating greenhouse gas emissions. ... The solution was used to activate a mix between ladle slag and arc furnace slag. Furthermore, Xu and Yi ...
The use of synthetic fluxes in secondary steelmaking not only improves the properties of top slag and steel quality but also increases the production cost. Ladle furnace (LF) slag can be used as a replacement to synthetic fluxes owing to its chemical and mineralogical compositions. Valorization of LF slag helps in sustainable steelmaking and also reduces steel …
The setting times of individual cement types varied based on their compositions, yet they attained standard values. According to the initial setting time results provided in Table 3, it can be concluded that ladle slag is a pozzolanic material due to the shorter setting time compared to various cements (C-1 – C-4) [48].Therefore, the pozzolanic properties of steel …
Further refining of the steel products from the BOF and EAF in a ladle furnace (LF) results in the production of ladle refined furnace (LF) slag 1. Most steel slags produced were considered waste and disposed of in landfills. ... Varanasi et al. 13 studied the recycling of LF slag as a flux in steel making. Dash et al. 11 reviewed the powdering ...
The invention provides an LF (Ladle Furnace) hot steel slag recycling process. The process is characterized in that deslagging indicates that residual hot steel slag in a steel ladle is poured into molten steel of a steel ladle of a next ladle, and then refining raw materials are added, wherein the sulfur capacity of the residual hot steel slag is larger than 0.020.
A hot-state steel slag and process technology, which is applied in the field of steel-making and refining in the metallurgical industry, can solve the problems of environmental pollution, waste of heat and waste of hot-state refining slag, save the amount of deoxidizer added, improve the yield of molten steel, reduce The effect of production costs
This paper reviews the production process, the mineralogical and morphological properties, stabilization techniques, and the applications of ladle furnace (LF) slag. One of the …
If the S in hot ladle furnace slag is removed, the treated slag can be reused at a ladle refining station; this approach reduces the consumption of mineral resources and …
Utilization of ladle furnace slag as cement partial replacement: influences on the hydration and hardening properties of cement. Construct. Build. Mater., ... Recycling ladle furnace slag as flux in steelmaking: a review. Journal of Sustainable Metallurgy, 5 (4) (2019), pp. 449-462, 10.1007/s40831-019-00243-9. View in Scopus Google Scholar
Only few studies aimed at evaluating the possibility of recycling LFS in road pavements: Pasetto and Baldo [12] focused on reusing different industrial by-products (steel slag, ladle slag, foundry sand, coal ash and glass wastes) to produce cement bound mixtures for base and sub-base layers. The results showed that the cement-treated recycled mixture containing …
Recycling ladle furnace (LF) slag helps in sustainable steel making and reduces steel production costs. This paper focuses on recycling Si/Mn/Al-killed LF slag as a replacement for CaO–Al2O3-based ...
LF slag recycling was carried out by Mobarakesh Steel Company (MSC) by means of recycled LF slag obtained from Al-killed steelmaking process. Slag crushed to − 2.5 mm was blended with calcined bauxite and high calcium lime for trials. The compositions of LF slag and trial synthetic slag …
A new technique is presented to recycle ladle slag within the electric arc furnace through the injection system. The dilution of the chemical species contained in the slag and their combination with the species featuring the EAF slag afford a double advantage: the final slag is structured by chemical species that do not lead to the formation of powders and better …
Ladle refined furnace (LRF) slag is a residue of the secondary metallurgy process [24] of steel manufacturing, which is also called ladle ... Recycling LRF slag for improving soil for different geotechnical applications is an economical and environment-friendly approach as utilizing LRF ensures sustainable solid waste management along ...
In view of the present problem of sulfur enrichment in the metallurgical recycling process of ladle furnace (LF) refining slag, a simple and efficient method of removing sulfur from this slag was proposed. The proposed method is compatible with current steelmaking processes. Sulfur removal from LF refining slag for SPHC steel (manufactured at a certain steel plant in …
Slag recycling is then becoming important in recent years. Recycling can be an efficient option to reduce such waste. Fluorspar (Calcium Fluoride) is . ... The third type of slag is Ladle Furnace (LF) slag, which is generated during the secondary steelmaking in the Ladle Furnace process. After completion of the primary
Ladle slag generated at the steelworks Acciaierie Bertoli Safau (ABS), Italy was used. It consisted of a mixture of slag derived from a vacuum oxygen decarburization process and ladle furnace slag in the approximate weight ratio of 40:60. The Portland cement used was CEM I (52.5R) according to standard SIST EN 197-1 (2011).
These reviews considered the application of BOF, EAF, Linz-Donawitz (LD), ground granulated blast furnace (GGBF), and LF slag, emphasizing the reuse of BOF and EAF slags. Najm et …
This study reviews the latest technologies for the recycling of steel slag (SS) and ladle refining slag (LFS), as well as the recent advancements in impurity element recovery using an applied …
Ladle Furnace (LF) slag handling – also known as white slag, secondary refining slag or secondary metallurgy slag (SMS) – currently represents a significant safety, environmental, operational and financial concern for Electric Arc Furnace steel producers.Ladle furnace slag is produced in the so-called secondary metallurgy process, representing the final stages of …
Recycling of ladle furnace slags (PDF) Recycling of ladle furnace slags | Sima Aminorroaya Yamini - Academia.edu Academia.edu no longer supports Internet Explorer.
Introduction: Innovation is the heartbeat of progress. The Ladle Furnace (LF), while pivotal in steelmaking, faces several limitations that impede efficiency, sustainability, and cost-effectiveness…
Recycling the ladle furnace slags is a key issue for environment. These slags can lose their compact structure and assume a powdered form as a result of interactions between the solidified slag ...
Ladle furnace slag is produced through the addition of lime (CaO), and dolomitic limestone (CaO.MgO) in the electric furnace. The resulting byproduct, ladle furnace slag, contains high concentrations of calcium oxide. Due to high CaO concentrations the material can be used in the production process of cement, as a limestone replacement.