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granulation von eaf slag


Slag ratio of BOF and EAF is about 120kg/t steel Percentage of reclamation is 2 40 in 1980 For several cases a risk of the expansion and the alkali risk

Types of iron and steel slag NIPPON SLAG ASSOCIATION

When it is ejected from a blast furnace the slag is molten at a temperature of approximately 1 500℃ Depending on the cooling method used it is classified either as air cooled slag or granulated slag Air cooled slag The molten slag flows into a cooling yard where it is cooled slowly by natural cooling and by spraying with water

Stabilization of EAF slag for use as construction material

The EAF slag samples were mixed together with stabilizers for melting at 1600 o C and then cooling in a crucible system With a laboratory granulation system the liquid EAF slag was cooled rapidly using air Samples from the tests were characterized by different techniques including XRD and SEM

slag granulation steelmaking

Slag Granulation with Continuous Dewatering Ironmaking Slag Granulation with the INBA Dewatering System Molten slag is often considered as a waste material when it is cast into slag pits INBA slag granulation and dewatering system is the proven route for converting molten slag into a value added product for the cement industry

Jorn Bohlke et al Treatment of Industrial Lead and Zinc

LeadZincSlagSAF EAFHollow electrode von Blei und Zink konnen dabei gleichzeitig die Wirt vided in water granulated form so that the particle size was about 0 5 to 5 mm Figure 2 gives an impression of one treated slag 3 Thermodynamical modelling


An EAF slag with 47 1 FeO and basicity B3 of 1 66 was provided by OneSteel Sydney Steel mill which was further analysed by XRF and its composition is given in Table4 TABLE 4 COMPOSITION OF EAF SLAG USED FOR THIS INVESTIGATION Component Composition wt CaO 24 1 FeO 47 1 Al 2 O 3 4 9 SiO 2 9 6 MgO 10 2 MnO 4 8 Basicity = CaO SiO

New technology for the recovery of chromium from EAF

During the production of stainless steel in an electric arc furnace a significant part of the charged chromium is transferred to the slag With the new technology of aluminium injection chromium is recovered from the slag thus alloying components and costs are saved Typical mechanically processed Al granules used for the EAF slag injection grain size approx 1 ndash2 mm

Electric Arc Furnace Granulated Slag for Sustainable Concrete

EAF granulated slag showed higher density than natural aggregates as a consequence of their high iron content 20 ÷ 30 vs weight Hence the higher the amount of slag was in the mix the higher the density of concrete Wastes showed higher water absorption compared to

MSDS Slag Material Safety Data Sheet

MSDS Slag Page 5 of 6 Revised 03/01/14 Section 9 PHYSICAL AND CHEMICAL PROPERTIES Physical State Solid powder Evaporation Rate NA Appearance Gray/black or brown/tan powder pH in water 8 11 Odor None Boiling Point >1000 o C Vapor Pressure NA Freezing Point None solid Vapor Density NA Viscosity None solid Specific Gravity 2 3

Canadian Slag Association

Exp Expanded pelletized blast furnace slag GG Ground Granulated blast furnace slag EAF Electric Arc Furnace steel slag Slag Processing Company Plant Location Steel Company Serviced Canadian Slag Services Nanticoke ON

Characterization of Slag Rec dry granulated EAF slag

dry granulated EAF slag M Gelfi G Cornacchia R Roberti M Svanera F Uberto Università degli Studi di Brescia Brescia Italy ASO Siderurgica Ospitaletto Brescia Italy The aim of ASO Siderurgica in developing the SLAG REC system for the treatment of EAF slag is

slag granulation process

Modeling on Dry Centrifugal Granulation Process of Molten them slag granulation process by a centrifugal force which is also called DCG process has proved its advantages due to its simpleness controllability less energy consumption and more sensible heat recovery in the past years 5–9 In this Modeling on Dry Centrifugal Granulation Process of Molten Blast Furnace Slag

Electric Arc Furnace Slag

The slag is dark grey in colour and is characteristically harder than blast furnace slag BFS It has a density about 2025 greater than basalt or BFS It crushes to a cubical shape EAFS in common with most steel slags is subject to slight dimensional expansion until it fully hydrates Until this occurs care should be taken not to place

UDC 669

treatment this slag is sometimes called secondary refining slag or ladle slag As shown in Fig 1 nearly 80 of blast furnace slag is granulat ed slag produced by rapidly cooling hot molten slag initially at a temperature of about 1 500 C with a jet of high pressure water Granulated slag is vitreous and looks sandy

Eaf Slag Granulation Plant

Eaf Slag Granulation eaf slag granulation plant Titanium Slag Price eaf slag granulation plant offers 122 titanium slag price products About 59 of these are rotary drying equipment 28 are welding rods and 2 are industrial furnace SLAG REC innovationseeds eu

Chemical characteristics of iron and steel slag NIPPON

The primary components of iron and steel slag are limestone CaO and silica SiO 2 Other components of blast furnace slag include alumina Alsub>2 O 3 and magnesium oxide MgO as well as a small amount of sulfur S while steelmaking slag contains iron oxide FeO and magnesium oxide MgO the case of steelmaking slag the slag contains metal elements

Composite Materials of Aluminium/Granulated Slag and

properties of the composite material as a function of the granulated slag and electric arc furnace dust content At present the best results concern the Al/granulated slag composites reaching compressive strengths up to 370 MPa KEYWORDS recycling sintering Al/Granulated slag composites Al/EAF dust composites hardness compressive strength

slag granulation process

XSM Machinery chinese technology for blast furnace slag granulation proces in mineral processing aspects widely used many customers get Inquire Now slag granulation definition English A process for producing granulated slag sand from blast furnace slag by granulating the slag by means of a water jet in

Characteristics of steel slag under different cooling

The results show that the disintegrated ladle slag was made volume stable by water granulation which consisted of 98 glass However EAF slag 1 EAF slag 2 and the BOF slag formed 17 1 and 1 glass respectively The leaching test showed that the glass containing matrix did not prevent leaching of minor elements from the modified slags

Technical Review UDC 669

Granulated 20 049 10 384 21 030 10 792 Sub total 24 639 13 073 25 885 13 477 Steelmaking BOF 11 036 5 572 11 810 6 569 EAF 2 726 77 2 011 65 Sub total 13 762 5 649 13 821 6 634 Grand total 38 401 18 722 39 706 20 111 kton Fig 1 Uses of iron/steel slag FY 2012

Electric Arc Furnace Slag in Concrete

15 11 2004  Abstract This paper describes the work carried out in laboratory to produce concrete with good properties using oxidizing electric arc furnace EAF slag as fine and coarse aggregate To do this the slag obtained in the steelmaking process must be crushed and stabilized First a suitable mortar must be made and tested

Types of Slag Features of BOFS CHC Resources Corp

EAF slag must go through the oxidation phase and the reduction phase therefore it can be divided into two types namely oxidation slag and reduction slag In addition the gas and suspended particles that are emitted in this production process are collected by air pollution control equipment


EAF slag aggregates for radiation shielding applications Discussion Coffee break Application of ground granulated blast furnace slag as concrete additive in Germany the k value concept of DIN EN 206 The use of ground granulated blast furnace slag as a concrete addition performance concepts of the European concrete standard EN 206 Euroslag 2015


granulated BF slag s air cooled BF slag lump granulated ratoi hot m etal productoni Figure 2 Change of granulation ratio of BF slag1 Steelmaking slag In the steelmaking process molten metal is refined and converted into steel either in a basic oxygen furnace BOF or an electric arc furnace EAF and the molten steel

Microtexture Performance of EAF Slags Used as Aggregate in

EAF slags by exposing them to outdoor weather and regular spraying for at least 90 days may avoid any expansive phenomenon allowing a safe use of such slag as aggregate in concrete production Furthermore the fine powder covered on the slag surface after crushing needs to be removed in order to have edged shaped granules

slag granulation plant

The granulated slag samples were collected and analyzed for specific gravity bulk density and structure through slag granulation plant onesittingdegree eaf slag granulation plant in Belgaum India Crusher South Africa granulation of electric furnace slag The SLAG REC project for an innovative direct dry granulation Learn More Main

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

Ground granulated blast furnace slag

08 02 2017  Ground Granulated Blast Furnace Slag Ground Granulated Blast Furnace Slag GGBFS is a by product of the steel industry Ground Granulated Blast furnace slag is the nonmetallic product consisting essentially of silicates and aluminosilicates of calcium and of other bases that is developed in a molten condition simultaneously with iron in a blast furnace


about the use of EAF slag in SCC in substitution to medium or coarse aggregates In 9 ground granulated blast furnace slag was added as fine in substitution to cement in SCC similarly in 10 EAF slag combined with AOD slag was used as filler in SCC but since some investigation 11 revealed that EAF slag as fine aggregates in the ordi

Dust Reutilization System for Electric Arc Furnace EAF

Dust Reutilization System for Electric Arc Furnace EAF Steelmaking EAF dust contains Fe and Zn They can be separated from slag by EAF Smelter Recovery of high purity Fe and ZnO is achieved Another process uses rotary kiln as reactor This will get ZnO powder but Fe and slag are agglomerated

dry granulation copper slag

Dry Granulation Copper Slag In Egypt 07/03/2019 Dry Granulation Copper Slag In Egypt The slagrec project for an innovative direct dry granulation of eaf slag after only one treatment process completely eliminating the risk of swelling and a new system for eaf slag dry granulation has been developed free online free consultaion Solutions Cases We provide quality and

Grounded Granulated Blast Furnace Slag GGBFS Packaging

New Bharat Refractories Ltd Offering Grounded Granulated Blast Furnace Slag GGBFS Packaging Type Packet at Rs 3400/metric ton in Kolkata West Bengal Read about company Get contact details and address ID


Granulation of the excess hot metal is a process that deals with these issues and produces a by product with no slag contamination and minimal or no oxidation Use of Granulated Pig Iron GPI in the Electric Arc Furnace EAF for steelmaking 144 Robinson Road #17 01 Robinson Square Singapore 068908 65 6384 5186

Pilot Experiences of Swerea MEFOS on Slag Recycling 12 pt

Fig 3 Water granulation unit for slag granulation and two slag product samples from one of test campaigns a Water granulator b Water granulated glassy slag c Metallurgical powder calcium aluminate product 2 1 3 Treatment of EAF slag and EAF dust from stainless steelmaking for Cr Ni and Zn recovery

Electric arc furnace granulated slag for sustainable

This paper deals with the use of industrial by products from electric arc furnace EAF granulated slag for the partial replacement of natural aggregates commonly used to manufacture concrete Three different gradings of EAF granulated slag were considered

UDC 669

treatment this slag is sometimes called secondary refining slag or ladle slag As shown in Fig 1 nearly 80 of blast furnace slag is granulat ed slag produced by rapidly cooling hot molten slag initially at a temperature of about 1 500 C with a jet of high pressure water Granulated slag is vitreous and looks sandy