Steelmaking slag (BOS or EAF) mainly consist of dicalciumsilicate (Ca 2 SiO 4), dicalciumferrite (Ca 2 Fe 2 O 5) and wuestite (Fe 1 -x- y,Mg x,Mn y)O z The physical properties of iron and steel slags depend on the chemistry as well as the cooling condition and can be influenced by processing once the slag is removed from the furnace
the molten slag to lower the viscosity and adjust the slag composition making it suitable for making glass ceramics The liquid slag is air granulated and heat can be recovered Component modification of steelmaking slag in an air quenching process to improve grindability was reported
31 Cooling of the steelmaking slag As steelmaking slag is formed, it is in a molten or red-hot state at a temperature of 1,300-1,700°C Therefore, steelmaking slag must be immediately subjected to the cooling process upon removal Ordinarily, this is performed in a ,
Products › Ironmaking and steelmaking › Slag Granulation , Slag granulation using water sprays is now an established technology that not only simplifies blast furnace casting floor operations but also provides an economical route for producing of a valuable raw material for a host of industri
Concrete Produced by Steel-Making Slag (Basic Oxygen Furnace) Addition in Portland Cement Hasan Alanyali,* Mustafa C¸o¨l, Muharrem Yilmaz, and S¸adi Karago¨z Faculty of Engineering, Kocaeli University, Izmit-Kocaeli, Turkey A steel-making slag (basic oxygen furnace) obtained from the Kardemir Steelworks was modiﬁed to be used as a clinker
Alibaba offers 1,272 slag granulation products About 38% of these are other metals & metal products, 2% are other non-metallic minerals & products, and 1% are granulators A wide variety of slag granulation options are available to you, such as free sampl
May 01, 2014· Read "Valorization of steel slag by a combined carbonation and granulation treatment, Minerals Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips
Mar 16, 2015· Mark Cooksey: Steel making is one of the world’s largest industries and it produces over 300 million tonnes of slag every year So slag is the waste product from iron making [Image changes to show the spinning disc for the slag granulation process and ,
The Scope 1 and Scope 2 emissions from the iron ore-based integrated steelmaking route, the blast furnace (BF)—basic oxygen , Nakahara T, Onous H, Ichimura S, Kondo M (1985) Development of slag blast granulation plant characterised by innovation of the slag treatment method, heat recovery and recovery of slag as resourc Mitsubishi .
IRONMAKING AND STEELMAKING Slag Granulation Systems Efficient blast furnace slag granulation contributes to low-cost hot metal and turns a residue into a resource 10/117 A modern blast furnace can produce more than a million tons per annum of slag Slag granulation using water sprays is now an established technology that not only simplifies .
Granulated blast furnace slag - Mineral Products Association Molten slag taken from the bottom of the furnace is granulated Granulation , Granulate is produced in modern, high cost, state of the art granulating plants which are computer controlled and environmentally friendly ,EAF carbon steel slag
Slag granulation using water sprays is now an established technology that not only simplifies blast furnace casting floor operations but also provides an economical route for producing of a valuable raw material for a host of industri The slag granulation plant comprises three sections: for granulation, dewatering and storage
May 05, 2013· Blast furnace slag granulation at cast house Blast Furnaces normally generate 250 to 350 Kg of liquid slag for every ton of hot metal produced This molten slag is at around 1400 – 1550 deg C temperature Till seventies blast furnace (BF) slag was considered a waste product and was being dumped at a convenient place away from the blast .
The invention relates to the granulation of molten slag directly from metallurgical furnac Known installation granulated slag containing slag chute, which consistently are hydrogenerator, a hopper - sump with grate and overflow device and coupled with well installed the airlift, connected in turn with the dehydrator carousel with feeding hopper and the discharge hopper, and well air pump .
STEEL-SLAGS AS FILLER MATERIAL IN CONCRETE 387 Materials In order to evaluate the possibility of modifying slags and thus their effect on concrete properties, wet grinding of two steel-slags was performed Electric arc furnace slag (EAF) and stainless steelmaking slag (AOD) were investigated Quartz sand (sand from the Baltic sea) was used as
Nov 14, 2018· The combined use of steelmaking slag and hydrogen peroxide (H2O2) can decompose organic pollutions due to the ferrous ion produced from FeO in steelmaking slag reacting with H2O2 to form Fenton’s reagent which has strong oxidation Steelmaking slag can also be used as raw material for coagulant preparation
The current state of ironmaking and steelmaking slags valorisation in China is reviewed in this paper The hot stage processing processes with respect to BF slag granulation and steel slag pyrolytic self-slaking have made progress and are applied in a number of large steelmaking companies in China Current researches and
Steelmaking slag consists of converter slag that is generated by converter and electric arc furnace slag that is generated during the electric arc furnace steelmaking process that uses steel-scrap as the raw material Converter slag In the same way as air-cooled blast furnace slag, converter slag is cooled slowly by natural cooling and water .
Home » Products » Ironmaking and steelmaking Ironmaking and steelmaking Direct reduction, scrap processing, melting, refining and recovery plants 1/6 RESET Iron ore processing ENERGIRON Scrap , Slag Granulation Systems Steel Plant Model BOF (Basic Oxygen Furnace) Sublance-Based .
This work reports the results of a combined accelerated carbonation and wet granulation treatment applied to Basic Oxygen Furnace (BOF) steel slag with the aim of producing secondary aggregates for civil engineering applications and of storing CO 2 in a solid and thermodynamically stable form The tests were carried out in a laboratory scale granulation device equipped with a lid and CO 2 .
A new dry granulation process for molten slag is described The process produces a slag product of high glass content, suitable for cement manufacture, and allows heat recovery from the slag Experimental tests have been carried out on a laboratory-scale plant to prove the new process
Abstract: A large amount of various molten oxides, such as steelmaking slag and lava, is cooled without heat recovery For example, the amount of slag as a byproduct of steelmaking, over 1723 K in temperature, reaches 30 million tones annually Although the systems for efficient heat recovery from molten slag have been proposed, the technology has not established yet
Dry Slag Granulation Water granulation is the most commonly used method to handle blast furnace slag and requires a granulation and a dewatering step to process the slag In water granulation, the energy in the slag is lost from water evaporation and cooling and is difficult or impossible to recover
In modern blast furnaces around 025-030 tons of liquid slag with a temperature of approximately 1450°C are produced per ton of pig iron A number of slag heat recovery systems have been proposed However none have yet been applied commercially due to technical difficulties that arise in the development of a safe, reliable and energy-efficient system
We have set up a team with hundreds of technical engineers to resolve a series of problems during project consultation, on-site surveys, sample analysis, program design, installation, commissioning and maintenance guidance.