recycling of ladle slag in the eaf improvement of the
A way to reduce environmental impact of ladle furnace slag
Jul 18 2013 · 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 properties. The main purpose of the case study presented in this paper concerns the reduction of potential LF slag environmental impacts because of its intrinsic
Get Price
Evaluation of Internal Slag Reuse in an Electric
replacement of lime and dolime with ladle furnace slag with or without the partial recovery of EAF slag. The effect of the two process modifications on the production route the environmental and energy impacts and steel quality were evaluated through advanced simulation. In particular the simulations
Get Price
Saad AliTechnische Universität ChemnitzPakistan
Scrap management to prevent delays manage sufficient opening of carbon in EAF to minimize refractory errosion Institute of Scrap Recycling Ladle Refining (LRF/Ladle Furnace operations) Control slag formation with nill carry over slag from eaf Making of G-60 SR-01 02 03 steel Desulphurization practice control the aluminium wt. .
Get Price
Recycling EAF Steel Dust
The SDR recycling facilitylocated in Northwest Alabamacan currently process more than 240 000 tons of EAF dust annually. Effective October 1 2009 SDR became a part of the Grupo Promax a widely diversified industrial group owner of Zinc Nacional with over 30 years of experience in the recycling of EAF
Get Price
Fundamentals of Eaf and Ladle Slags and Ladle Refining
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 simple slag classification III) Foamy slag fundamentals and their practical application to
Get Price
RECYCLING OF LF-WHITE SLAG La Metallurgia Italiana
The type of recycling evaluated in the present study mainly consists in the reuse of the ladle slag and refractory injecting them into the Electric Arc Furnace. The recycling of ladle slag can permit to achieve interesting advantageous results decreasing the amount of dumped material the cost of EAF fluxes and improve the slag foaminess.
Get Price
Recycling management conservation of resources
Oct 09 2020 · Ladle slag The slag used in the production process in the ladle furnaces is granulated by rapid cooling and is then returned into the steel production process as EAF slag (recycling management). Refractory waste furnace vessel The refractory waste occurring when lining up the lower furnace vessel consists of fine material brick fragments or
Get Price
Chapter Treatments and Recycling of Metallurgical Slags
Because ladle slag is a premelted flux when it is recycled in the steelmaking process it is easy to be remelted. This type of slag has good physical properties
Get Price
A way to reduce environmental impact of ladle furnace slag
Jul 18 2013 · 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 properties. The main purpose of the case study presented in this paper concerns the reduction of potential LF slag environmental impacts because of its intrinsic
Get Price
2009 065 MASTER S THESIS Improvement of the
tap hole sand EAF slag and part of deoxidation products (Al2O3 and SiO2) which have floated to the top of the steel and other impurities are removed at the mechanical deslagging process. The steel in the ladle is then transported further in a ladle wagon to the heating unit where it is
Get Price
Slag recyclingrecovery
Of the 16.3 Mta of steelworks slag in Europe 52.3 are BOF slag 34.9 are EAF slag and 12.6 are other types of steelworks slag. Of this amount 11.8 Mta or 72.4 was recovered 15.3 went to interim storage and 12.3 to dumps and landfills. The recovery or recycling
Get Price
(PDF) Recycling MgO-C Refractory in the EAF of IMEXSA
According with this investigation recycling 1 ton/heat at the beginning of the process leads to improve the slag foaming properties resulting in a decrease in the consumption of electrical energy longer refractory life due to reach a MgO concentration closer to the saturation limit additionally it also decreases both the consumption of
Get Price
(PDF) Recycling of ladle slag in the EAF Improvement of
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
Get Price
Recycling Ladle Furnace Slag as Flux in Steelmaking A
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.
Get PriceFundamentals of Eaf and Ladle Slags and Ladle Refining
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 simple slag classification III) Foamy slag fundamentals and their practical application to
Get Price
Recycling EAF Steel Dust
The SDR recycling facilitylocated in Northwest Alabamacan currently process more than 240 000 tons of EAF dust annually. Effective October 1 2009 SDR became a part of the Grupo Promax a widely diversified industrial group owner of Zinc Nacional with over 30 years of experience in the recycling of EAF
Get Price
Recycling EAF Steel Dust
The SDR recycling facilitylocated in Northwest Alabamacan currently process more than 240 000 tons of EAF dust annually. Effective October 1 2009 SDR became a part of the Grupo Promax a widely diversified industrial group owner of Zinc Nacional with over 30 years of experience in the recycling of EAF
Get Price(PDF) A Review on Recycling of Refractories for the Iron
Refractory materials are essential for the production of iron and steel. They are used in the direct reduction modules coke oven batteries blast furnaces hot metal transport and pretreatment oxygen converters electric furnaces steel ladles
Get PriceA way to reduce environmental impact of ladle furnace slag
Jul 18 2013 · 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 properties. The main purpose of the case study presented in this paper concerns the reduction of potential LF slag environmental impacts because of its intrinsic
Get Price
(PDF) Recycling MgO-C Refractory in the EAF of IMEXSA
According with this investigation recycling 1 ton/heat at the beginning of the process leads to improve the slag foaming properties resulting in a decrease in the consumption of electrical energy longer refractory life due to reach a MgO concentration closer to the saturation limit additionally it also decreases both the consumption of
Get Price
Recycling Ladle Furnace Slag as Flux in Steelmaking A
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.
Get Price
Characteristics of steel slags and their use in cement and
Sep 01 2018 · Currently steel slags can be recycled for internal metallurgical purposes (Yi et al. 2012) or used in road construction (Pasetto and Baldo 2010a b 2015 2016) cement and concrete (Carvalho et al. 2017 Yi et al. 2012) bituminous mixes (Skaf et al. 2017) fertilizer (Yi et al. 2012) and soil improvement (Poh et al. 2006).
Get Price
Recycling of ladle slag in the EAF improvement of the
Recycling of ladle slag in the EAF improvement of the foaming behavior and decrease of the environmental impactVolume 104 Issue 4M. Guzzon C. Mapelli F. Memoli M. Marcozzi
Get Price
Chapter Treatments and Recycling of Metallurgical Slags
Because ladle slag is a premelted flux when it is recycled in the steelmaking process it is easy to be remelted. This type of slag has good physical properties
Get Price
Treatment and characterisation of electric arc furnace
Ladle refining slag from the steel refining processes in the ladles. The blast furnace slag after granulation and grinding finds extensive use in cement and concrete. The steel slag however is yet to find a value added application except for its occasional usage as a cementitious binder. More often than not it is used as a landfill material.
Get Price
Chemical Mineralogical and Morphological Properties of
Steel slag is a byproduct of the steelmaking and steel refining processes. This paper provides an overview of the different types of steel slag that are generated from basic-oxygen-furnace (BOF) steelmaking electric-arc-furnace (EAF) steelmaking and ladle-furnace steel refining processes. The mineralogical and morphological properties of BOF and electric-arc-furnace-ladle EAF(L) slag
Get Price
steel slag recycling plants worldcrushers
Jul 11 2013 · RECYCLING OF LADLE SLAG IN THE EAF IMPROVEMENT OF THE FOAMING BEHAVIOUR AND DECREASE OF THE ENVIRONMENTAL IMPACT Osvaldo Bonetti Stefana S.p.A. Ospitaletto (Italy) Process for Recycling of Steel Industry Iron Bearing By
Get Price
Emission Factor Documentation for AP-42 Section 12.5.1
The slag is typically removed by tipping the furnace backwards and pouring the molten slag out through a slag door1 at which point the slag is further processed (i.e. cooled cured and sized) into a product. After completion of the batch the tap hole is opened and the steel is poured from the EAF into a ladle for transfer to the next
Get Price
Fundamentals of Eaf and Ladle Slags and Ladle Refining
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 simple slag classification III) Foamy slag fundamentals and their practical application to
Get Price
