Cooling history of a wet-granulated blast furnace slag ...

Cooling history of a wet-granulated blast furnace slag (GBS) of >99% glass fraction is studied. • Fictive temperature of GBS is approx. 160 K higher than T g under standard cooling conditions.. Glass structure is frozen-in at a viscosity of 10 5.9 Pa s.. Cooling rate of the quench is approx. 2.6 × 10 5 K s −1.. GBS is assigned to the class of hyperquenched glasses.

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Influence of the Thermal History of Granulated Blast ...

13-3-2020· Together with about 1180 million tons of hot metal (2017) about 380 million tons of blast furnace slag are produced yearly worldwide. Most of it (about 280 million tons) is quenched forming the glassy granulated blast furnace slag (GBS). For more than 130 years, this by-product is used as a clinker substitute in cement and concrete. Many approaches exist to evaluate the reactivity of ground ...

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Blast Furnace Slag - an overview | ScienceDirect Topics

Blast Furnace Slag. Blast furnace slag is used successfully in mud-to-cement conversion worldwide because of its economic, technical, and environmental advantages (Pessier et al., 1994). Slag-mix slurries were used as primary, temporary abandonment and sidetrack plug cements during prospect predrilling in the Gulf of Mexico.

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Wet Blast Furnace Slag - FTMLIE Heavy Machinery

Wet Blast Furnace Slag. 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

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Cooling history of a wet-granulated blast furnace slag ...

Granulated blast furnace slag (GBS) is a glassy by-product of the steel industry that is formed during quenching of the molten slag after the blast furnace in a water-jet.

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SAFETY DATA SHEET Ground Granulated Blast Furnace Slag

Granulated Blast Furnace Slag >90% 65996-69-2 Gypsum (CaSO 4 2H 2 0) 2-5% 10101-41-4 Section 4: First Aid Measures 4.1 Description of first aid measures Eye If in eyes, hold eyelids apart and flush continuously with running water. Continue flushing until advised to stop by a Poisons Information Centre, a doctor, or for at least 15 minutes.

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Blast Furnace Slag - User Guideline - Granular Base - User ...

Gradation: Blast furnace slag should be crushed and screened to produce a material that satisfies the grading requirements of granular base and subbase specifications, such as AASHTO M147. Compacted Density : The compacted density varies with size and grading of the slag, method of measuring, and bulk specific gravity of the slag.

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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 slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a strength enhancing ...

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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.

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THE DRY BLAST- FURNACE SLAG GRANULATION AS RESOURCE …

The dry process in the case of blast furnace, produces a cement grade granulate of equal quality to that produced by the wet process. Hence it has increased value due to reduced energy requirements in subsequent processing. So the dry blast-furnace slag granulation arrangement application can dissolve such problems: the dry even sized

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Blast furnace slag granulation | Climate Technology …

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.

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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.

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Effect of slag chemistry on the hydration of alkali ...

Granulated blast furnace slag, a by-product of the raw iron production, is almost exclusively used as a main ingredient of standard cements in Germany so far. A key aspect of slag research is therefore the identifica-tion of assessment criteria for the reactivity of ground granulated blast furnace slag …

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The conditions of ettringite formation by the reaction of ...

The mixing of granulated BF slag with air-cooled ones tended to enhance the ettringite formation. Furthermore, a technique for removing the ettringite formed in the slag was also developed. AB - Blast furnace (BF) slags have been utilized in cement, concrete aggregate, roadbed materials, and …

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US7410537B2 - Process for the production of Portland slag ...

Accordingly, the present invention provides an improved process for the production of Portland slag cement using granulated blast furnace slag, which comprises: (viii) forming of cement clinker by known process, (ix) ball-milling of cement clinker for a period ranging between 30-60 minutes in dry condition, (x) reducing size of granulated blast furnace slag by any process to obtain the size in ...

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TPT: 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. This results in a worldwide annual production of about 400 million tons of blast furnace slag.

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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 ...

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Granulated Blast Furnace Slag - U.S. Steel

Granulated Blast Furnace Slag Safety Data Sheet (SDS) USS IHS Number: 75687 Locations:Fairfield, Gary and Lake Erie Original: 12/16/2010 Revision: 07/01/2017 Expiration: 07/01/2020 Section 1 – Identification 1(a) Product Identifier used on Label: Granulated Blast Furnace Slag 1(b) Other Means of Identification: Granulated Slag

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Heat recovery in dry granulation of molten blast furnace …

11-6-2020· @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 developed for granulating molten slag …

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Importance of Hearth, Dead man and Tapping in Blast ...

Tapping a blast furnace is necessary not only to deliver the blast furnace products, but also essential to the safety of the furnace and the operators in the cast house. The tapping of blast furnace, also referred to sometimes as casting or drainage, is a process that removes hot metal and liquid slag from the blast furnace …

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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.

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US7410537B2 - Process for the production of Portland slag ...

Accordingly, the present invention provides an improved process for the production of Portland slag cement using granulated blast furnace slag, which comprises: (viii) forming of cement clinker by known process, (ix) ball-milling of cement clinker for a period ranging between 30-60 minutes in dry condition, (x) reducing size of granulated blast furnace slag by any process to obtain the size in ...

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

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.

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TPT: 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. This results in a worldwide annual production of about 400 million tons of blast furnace slag.

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Fly ash and Blast Furnace Slag for Cement Manufacturing

Granulated Blast Furnace Slag (GBFS) from primary steel making processes and Fly Ash (FA) from coal-fired power plants are currently used as additional cementitious materials. These are materials that can be added to clinker to produce cement or added to cement to produce concrete.

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Recovery of Lead from Lead Blast Furnace Slags

Initial characterization of the lead blast furnace slag received from Herculaneum was through a) wet chemical analysis b) scanning electron microscopy and c) particle size analysis. The chemical analysis was performed by dissolution of the slag in aqua regia followed by elemental assay by atomic absorption for lead, zinc and iron.

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Heat recovery in dry granulation of molten blast furnace …

11-6-2020· @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 developed for granulating molten slag …

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Granulated Blast Furnace Slag (GBS) - YouTube

6-5-2016· Loesche Grinding Plant for Blast Furnace Slag - Spenner Zement - Duration: 5:33. LoescheGroup 3,596 views. 5:33. Europe’s Biggest Blast Furnace - A colossus being made fit for the future ...

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Slag Furnace | Feed The Beast Wiki | Fandom

The slag furnace works similarly to the vanilla furnace, but has an extra output slot. It also uses twice the fuel. For most ores, it will produce an ingot with a low (20%) chance of making two instead of one, and also some Stone. Silver Ore will make Silver Ingots and Lead Ingots.Silver is used for Mirrors, which are needed to make Factorization Charge, and Lead is used for electrical wiring ...

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Importance of Hearth, Dead man and Tapping in Blast ...

Tapping a blast furnace is necessary not only to deliver the blast furnace products, but also essential to the safety of the furnace and the operators in the cast house. The tapping of blast furnace, also referred to sometimes as casting or drainage, is a process that removes hot metal and liquid slag from the blast furnace …

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