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Blast furnace slag is known as byproduct from the production of hot metal at integrated steel and iron mills. Approximately 300 kg of this liquid slag with a temperature of about 1500 °C is tapped together with each ton hot metal. This means a worldwide annual production of about 400 million tons of blast furnace slag.
While substitution of ground granulated blastfurnace slag for up to 70% of the portland cement in a mix has been used, there appears to be an optimum substitution percentage that produces the greatest 28day strength. This is typically 50% of the total cementitious material but depends on the grade of ground granulated blastfurnace slag used.
The process uses ambient temperature synthesis to produce geopolymer cement from two major industrial waste, fly ash and granulated blast furnace slag. .
DRY SOLIDIFICATION WITH HEAT RECOVERY OF FERROUS SLAG Heribert MOTZ1, ... Wet granulated blast furnace slag is used worldwide as a ... Therefore each alternative cooling technology for liquid blast furnace slag must guarantee material properties comparable to those of wet granulated slag.
Granulated Blast Furnace Slag. Granulated blast furnace slag is a glassy granular material that varies, depending on the chemical composition and method of production, from a coarse, popcornlike friable structure greater than mm (No. 4 sieve) in diameter to dense, sandsize grains passing a mm (No. 4) sieve.
Jan 02, 2019· Slag is commonly aircooled in large pits and used for landfill or used for roadbased materials after crushing and screening. In some modern integrated steelworks, molten blast furnace slag is granulated using water jets — producing a glassy product which can be used as valuable feed in cement manufacturing by replacing ordinary Portland cement and significantly reducing the .
Abstract: An experimental programme is planned to study the effect of using copper slag (CS), granulated blast furnace slag (GBFS) and silicomanganese slag (SiMn) as fine aggregate on the properties of concrete.
Resources, Conservation and Recycling 40 (2003) 71–80 Recovery of silica gel from blast furnace slag Maurizia Seggiani∗, Sandra Vitolo Dipartimento di Ingegneria Chimica, Chimica Industriale e Scienza dei Materiali, Università di Pisa, Via Diotisalvi 2, 56126 Pisa, Italy Received 10 January 2002; accepted 28 January 2003 Abstract This work concerns a process for the recovery of silica ...
Iron recovery from a lead slag in Henan province was carried out with the technique of coalbased direct reduction followed by magnetic separation. Scanning electron microscopy (SEM) was used to investigate the transformation of ironcontaining minerals and the particle size of metallic iron generated by coal reduction. The results showed that technique is feasible for iron recovery from the ...
Groundgranulated blastfurnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a byproduct of iron and steelmaking) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.
Blast furnace (BF) slag is the principal byproduct formed during the ironmaking process, which generates a considerable amount of thermal energy. However, to simultaneously recover the maximum amount of residual heat and obtain vitreous slag using a low conduction coefficient of air is a primary challenge of the dry granulation technique, which has not been solved by either fundamental ...
Granulated Blast Furnace Slag Safety Data Sheet (SDS) USS IHS Number: 75687 ... labeled containers for recovery or disposal in accordance with federal, state, and local regulations. Follow applicable OSHA regulations (29 CFR ) and all other pertinent state and ... Iron Oxides 10 mg/m³ (as iron oxide fume) mg/m³ mg/m³ (as iron ...
The ground granulated blast furnace slag (GGBFS) is a byproduct of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability. This material is obtained by the heating of iron ore, limestone and coke at a temperature about 1500 degree ...
The slag used in the process is a nonmetallic substance formed simultaneously with iron in a blast furnace. As the slag is discharged from the blast furnace, it is quickquenched with water becoming a granulated glass of sandlike consistency. The slag is then ground to a particle size comparable to Portland cement.
Granulation of molten slag for heat recovery. ... As the main byproduct in the ironmaking process, blast furnace slag (BF slag) contains a high amount of sensible heat which is a potential heat ...
and more sensible heat recovery in the past –9) In this Modeling on Dry Centrifugal Granulation Process of Molten Blast Furnace Slag Qingming CHANG, 1)* Xianwang LI,2) Hongwei NI, Wenyuan ZHU,2) Chenggang PAN 1) and Shengde HU 1) The Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Qingshan ...
Portland and steel slaggranulated blast furnace slag (GBFS)cement Portland system were ... Since EAF slag DT has high iron oxide content, solid solution of FeO, typically one of the ... Filling effect of fine particle of steel slag might also improve mechanical resistance of blended cement [8,9]. ...
Slag handling is an important aspect of modern blast furnace operation. Today, blast furnace slag is a saleable product (granulated slag sand used as CO 2friendly substitute of clinker in cement production) rather than a difficult and costly waste Wurth has developed the INBA ® slag granulation process, incorporating our proprietary dynamic INBA dewatering drum.
Nov 11, 2016· To determine the factors that influence the diameter of granulated particles, a paraffin test platform for gas quenching granulation was established. The influences of air velocity, air flow rate, liquid mass flow rate, and liquid pipe diameter on the final particle .
Preparation of high purity nano silica particles from blastfurnace slag ... In the blast furnace process, iron ore, coke, ... The slag used in this study was granulated blast slag of P steel mill that had been piled up separately. After a grinding process, only
Overview of Slag Usage Technology Development at Various Works. Nippon Steel Sumitomo Metal Corporation has eight integrated iron and steel works with blast furnace in .... the required number of rotations of the equipment, weight percent ... ing slag or the case of replacing both coarse aggregates and fine ag ..... blast furnace slag ...
Blast furnace slag is one kind of solid waste, which is discharged from blast furnace. And the temperature of molten slag ranges from 1450 to 1650 ºC. In 2014, the output of blast furnace iron was more than billion tons, and there were about billion tons molten slag discharged from iron .
Nov 07, 2013· for the blast furnace slag energy and as in consequence CO 2 can be saved. In summary dry granulation of blast furnace slag allows an environmental friendly and sustainable subsequent processing for one of the last big heat recovery potentials at a modern blast furnace. [1] References [1] McDonald, I., Long, E., Werner, A.
Abstract: Alkaliactivated systems, formed by the alkaline activation are inorganic materials characterized by the potential of ecological use. The objective of experiment was to investigate the influence of different activators on selected properties of alkaliactivated systems based on granulated blast furnace slag.
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