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Heat recovery in dry granulation of molten blast furnace slag

@article{osti_5610662, title = {Heat recovery in dry granulation of molten blast furnace slag}, author = {Tetsuro, N. and Hiroshi, N. and Koichi, F. and Tsukio, I.}, abstractNote = {In a research and development project undertaken jointly between Ishikawajima-Harima Heavy Industries Co. and Sumitomo Metal Industries, Ltd., a process has been ...

Blast Furnace Slag Granulation | Iron Making WRT ...

Blast Furnace Slag Granulation Saint-Gobain ceramic materials extend the lifetime of slag granulation equipment over traditional refractory lined and hardened steel components. Abrasion and corrosion can hinder operational efficiency and increase downtime. Wear resistant materials from Saint-Gobain provide excellent abrasion and corrosion ...

Energy saving | ClimateTechWiki

Blast furnace slag granulation Cement is a global commodity, manufactured at thousands of plants. The industry is consolidating globally, but large international firms account for …

Dry Granulation of Blast Furnace Slag - Steel360 News

Liquid slag produced in a blast furnace (BF)is at a temperature of around 1500?C and has a sensible heat of around 400Mcal/ton. BF slag is rich in CaO, SiO2, Al2O3, and MgO which are similar to the components of Portland cement. When this liquid BF slag is cooled fast enough then the solidified slag has a large percentage of glassy phase with high cementations activity and hence it can be used ...

cost to set up a blast furnace slag cement plant - BINQ Mining

Nov 02, 2012· Blast furnace slag granulation | ClimateTechWiki. While substitution of ground granulated blast furnace slag for up to … there are about 30 steel slag cement plants … In cement manufacturing, cost … »More detailed

for sale blast furnace granulated slag grinding plant

Blast furnace slag granulation | ClimateTechWiki. Cement is a global commodity, manufactured at thousands of plants. ... Large amounts of electricity are used …

Blast Furnace Slag - Material Description - RMRC

Blast Furnace Slag - Material Description ORIGIN In the production of iron, iron ore, iron scrap, and fluxes (limestone and/or dolomite) are charged into a blast furnace along with coke for fuel. The coke is combusted to produce carbon monoxide, which reduces the iron ore to a molten iron product.

Ground granulated blast-furnace slag - Wikipedia

Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine powder.Ground -granulated blast furnace is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ...

Heat recovery process modelling of semi-molten blast ...

As a valuable byproduct of the iron-making process, blast furnace slag with temperature up to 1450–1650 ° C contains a tremendous amount of sensible heat. Dry granulation and waste heat recovery via a moving bed is an attractive alternative to the conventional water quenching method due to energy-savings and the reduction in water consumption.

Production of Granulated Blast Furnace Slag at Sparrows ...

Granulation water is cleaned, cooled, and recycled for the next furnace tap and slag granulation. The entire granulation system is environmentally clean with no discharge of water or gases. After the slag is dewatered, it is removed from the filter beds and transported to stockpile at the grindingandprocessing plant. Slag recovered from ...

Blast furnace slag granulation at cast house – IspatGuru

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 furnace.

Blast Furnace Slag Granulation / Ironmaking / Our ...

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.

eaf slag granulation plant - Mine Equipments

Blast furnace slag granulation | ClimateTechWiki Cement is a global commodity, manufactured at thousands of plants. ... The physical structure and gradation of granulated slag depend on the chemical ... If the total worldwide BOF and EAF steel slag resource of 100 Mt to 200 Mt per yearwas ...

Blast Furnance Slag - User Guideline - Portland Cement ...

Moisture in blast furnace slag, which occurs in the granulation process or in pelletized slag, should be removed by drying prior to the use of GGBFS as either an additive to Portland cement or a mineral admixture to Portland cement concrete. Grinding

building construction using by granulated furnace steel slag

Blast furnace slag granulation | ClimateTechWiki. The principal and most visible market for cement is the construction industry in a ... Blast furnace slag (BFS, see Wikipedia ground granulated blast-furnace slag…

Blast Furnace Slag | National Slag Association

Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace.When the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag.

AISTech2018 Dry Slag Granulation – The Future Way to ...

Each year, approx. 400 million tons of blast furnace slag is produced worldwide with a tapping temperature of around 1,500°C. Currently, the slag is granulated in wet granulation plants using large volumes of water and to date it has not been possible to utilize the remnant heat energy of the molten slag, with approx. 1.7 GJ of energy per ton.

Granulated Blast Furnace Slag (GBS) - YouTube

May 06, 2016· Europe's Biggest Blast Furnace - A colossus being made fit for the future ... Loesche Grinding Plant for Blast Furnace Slag - Spenner Zement - Duration: 5:33. LoescheGroup 3,262 views.

miningblast furnace slag granulation climatetechwiki

Blast furnace slag granulation ClimateTechWiki. Cement is a global commodity, manufactured at thousands of plants. Large amounts of electricity are used grinding the raw materials and finished cement. Blast furnace slag (BFS, see Wikipedia ground granulated blastfurnace slag) is a When crushed or milled to very fine cementsized particles ...

on fertilizer production blast furnace slag

Blast furnace slag granulation ClimateTechWiki. The primary distinction among the three types is the percentage of slag they contain. Slag cement may contain portland cement (see on Wikipedia) or hydrated lime (or both) while the other two are blends of Portland cement and slag only.

Some Fundamental Aspects of Dry Slag Granulation Process

molten blast furnace slags and recovered the heat in form of hot air. The product was found to be more than 98% glassy and showed comparable cementitious properties with water granulated slags. Furthermore, it was demonstrated that sulphur emission from the slag could be suppressed through dry granulation with air, thus avoiding sulphur emission to

NewCem | Lafarge Canada

This morphology change provides the slag with its cementitious properties. The granulated slag is then ground to a controlled fineness, typically greater than that of GU portland cement, and the finished product, called ground granulated blast furnace slag (GGBFS) is ready for shipment to our customers. The NewCem® Slag Cement Advantage

Dry Granulation of Blast Furnace Slag for Energy Recovery ...

Aug 09, 2014· Dry Granulation of Blast Furnace Slag for Energy Recovery Around 300 kg of liquid slag is produced as byproduct while producing one ton of hot metal in a blast furnace (BF). This slag is at a temperature of around 1500 deg C and has a sensible heat of approximately 400 M Cal per ton.

Tarmac | Blast Furnace Slag

The rapid cooling of molten slag by large quantities of water produces sand-like granule aggregate. Primarily ground into a cement replacement known as ground granulated blast furnace slag (GGBS) this is used in ready-mixed and precast concrete and masonry, floor levelling compounds and high temperature resistant building products.

Blast Furnace Slag - an overview | ScienceDirect Topics

Blast Furnace Slag. Blast furnace slag (BFS) is a product of iron production, which has been widely investigated and utilized, particularly as a supplementary cementitious material for cement or alkali-activated material, owing to its high hydraulic property or alkali activation reactivity.

IBMD - Granulated Blast Furnace Slag Manufacturer in India

The process of slag granulation involves pouring the molten slag through a high-pressure water spray in a granulation head, located in close proximity to the blast furnace. Granulation process is the controlled quenching of the slag in cold water which does not give time for crystalline growth to take place. During this process of quenching ...

slag granulation process - podlahy-anhydritove.eu

Blast furnace slag granulation | ClimateTechWiki. Blast furnace slag (BFS, see Wikipedia ground granulated blast-furnace slag) is a nonmetallic byproduct of the manufacture of pig iron in a blast furnace. BFS consists primarily of silicates, aluminosilicates, and …

TPT: Dry Granulation of Blast Furnace Slag for Heat Recovery

Dry Granulation of Blast Furnace Slag for Heat Recovery Blast furnace slag is known as a by-product 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.

Blast furnace slag granulation | Climate Technology Centre ...

Blast furnace slag is a nonmetallic byproduct of the manufacture of pig iron in a blast furnace. BFS consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates. BFS forms when slagging agents (e.g., iron ore, coke ash, and limestone) are added to the iron ore to remove impurities.

slag granulation process pdf - etsiviaggiarecisl.it

Ground granulated blast-furnace slag - Wikipedia. Ground granulated blast-furnace slag. Ground-granulated blast-furnace slag ... To cool and fragment the slag a granulation process can be applied in which molten slag is subjected to jet streams of water or air under pressure. ... in the pelletization process the liquid slag is partially cooled with water and subsequently projected into the air ...