Without the need of an upstream drying system for the blast furnace slag energy and as a 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.
Lots of iron molten slag from blast furnace can be produced during iron making process. It is generally cooled by water quenching method which causes many problems, such as water consumption, serious pollution, energy wasting etc. To solve these problems, much more attention has been paid to various dry granulation methods.
Study on Treating Blast Furnace Slag by TYNA Granulation . Compared with old slag granulation process, 'TYNA' slag granulating process are economy in water and electricity, the consumption of water is reduced from 40m~3 to m~3 that of the electricity is from 10 kWh to 3 kWh per ton slag, which results both economic and environmental benefits.
blast furnace slag granulation 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 2 friendly substitute of clinker in cement production) rather than a difficult and costly waste material.
Formed from liquid blast furnace slag, it is a byproduct of hot metal production in blast furnaces and thus of the steel manufacturing process. 65 % of all the steel manufactured worldwide comes from the blast furnace/LD converter while only 35 % is produced by the electric furnace process.
Electric Arc Furnace Slag (EAF or steel furnace slag) Produced when scrap metal and fluxes are oxidized by the use of an electric current. Molten slag is generally placed into ground bays for cooling. Both BOF and EAF slags are somewhat heavier than Blast Furnace Slag and most quarried rock material. Uses include
Ground Granulated Blastfurnace Slag (GGBS) Lafarge Emirates' GGBS is a premium quality, supplementary cementitious material that can be combined with cement to produce concrete having several advantages namely reduced heat evolution, enhanced durability, better .
The main objective of the slag granulation plant is to process liquid blast furnace slag into valuable raw materials for the cement and construction industries. The value of the slag depends on its characteristics such as mineralogical, chemical, physical and mechanical properties, glass content, structure and moisture content.
Experimental investigation of glass content of blast furnace slag by dry granulation. Junxiang Liu. School of Materials and Metallurgy, Northeastern University,, Shenyang, Liaoning, 110819 People's Republic of China. Search for more papers by this author. Qingbo Yu. Corresponding Author.
Many translated example sentences containing "slag granulation" – PolishEnglish ... Slag granulation process makes it possible to reuse by products of hot metal production in the blast furnace ... reporting to slag from a recycling process which is subsequently used for road construction or as construction aggregate for example ...
Converting Granulated Blast Furnace Slag into Fine Aggregate 95 slags can be increased by optimizing granulation parameters such as water temperature and flow rate to produce slag sand similar to river sand. Based on this concept, several trials were conducted at blast furnace slag granulation
The process of granulation in blast furnace slag (BFS) by gas quenching can effectively recover the waste heat of BFS and improve the valueadded nature of the BFS byproduct. With decreasing temperature, BFS crystallizes into melilite, anorthite,
Slag cement, or ground granulated blastfurnace slag (GGBFS), has been used in concrete projects in the United States for over a century. Earlier usage of slag cement in Europe and elsewhere demonstrates that longterm performance is enhanced in many ways.
Depending on the availability of the raw materials and marketspecific requirements, further extenders are added to the common grinding process such as granulated blastfurnace slag. Mainly consisting of lime, silica acid, aluminum oxide, and magnesium oxide, blastfurnace slag is normally processed in granulation plants nowadays.
Granulated Blast furnace slag (GBS) is a light coloured 0/4mm glassy sand produced by the rapid quenching of molten blast furnace slag using large volumes of water. Production and Processing . GBS or Granulate as it is sometimes known is produced by rapidly cooling molten Blast furnace slag with water as the slag is tapped from the furnace.
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