dry slag granulation
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dry slag granulation

Dry Slag Granulation: A Path to Improving the Safety and ...

Aug 23, 2016  For slag handling to become inherently safe, our industry must eliminate the potential contact of water with molten slag. This is today feasible with the advent of dry granulation technologies, a review of which is presented, and it thus falls to us, in the metallurgical sector, to lead the way in their final stages of development and adoption.

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Design and Operation of Dry Slag Granulation Pilot Plant ...

Feb 22, 2019  Dry granulation could convert molten slag to SCM and also recover a large fraction of the heat in molten slag. Dry Slag Granulation The concept of dry granulation is that molten slag is atomized under centrifugal forces on a spinning disc, and the liquid droplets generated are rapidly quenched and solidified using air to produce solid slag ...

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Some Fundamental Aspects of Dry Slag Granulation Process

Some Fundamental Aspects of the Dry Slag GranulationProcess . Sharif Jahanshahi*, Yuhua Pan and Dongsheng Xie . CSIRO Minerals Down Under National Research Flagship, Clayton, Victoria, 3168, Australia . Abstract: There is a growing interest in development of a dry slag granulation (DSG) process so as to recover the

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

dry slag granulation pilot plant is outlined below: Process Air Supply A radial fan is installed to supply the granulator and the various air cooling chambers with process air. Based on the thermal balance of the granulator an air amount of maximal 180,000 Nm³/h is provided to cool the granules down to target temperature. This air amount and ...

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EP2922976B1 - Dry slag granulation system and method ...

Dry slag granulation system and method Download PDF Info Publication number EP2922976B1. EP2922976B1 EP13794861.8A EP13794861A EP2922976B1 EP 2922976 B1 EP2922976 B1 EP 2922976B1 EP 13794861 A EP13794861 A EP 13794861A EP 2922976 B1 EP2922976 B1 EP 2922976B1 Authority EP European Patent Office Prior art keywords tundish granulator

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

dry slag granulation pilot plant is outlined below: Process Air Supply A radial fan is installed to supply the granulator and the various air cooling chambers with process air. Based on the thermal balance of the granulator an air amount of maximal 180,000 Nm³/h is provided to cool the granules down to target temperature. This air amount and ...

More

Some Fundamental Aspects of Dry Slag Granulation Process

Some Fundamental Aspects of the Dry Slag GranulationProcess . Sharif Jahanshahi*, Yuhua Pan and Dongsheng Xie . CSIRO Minerals Down Under National Research Flagship, Clayton, Victoria, 3168, Australia . Abstract: There is a growing interest in development of a dry slag granulation (DSG) process so as to recover the

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Dry Granulation of Blast Furnace Slag Steel360 News

Apr 04, 2019  Dry slag granulation process is essentially to atomize the liquid slag and then to cool the particles rapidly so as to produce a glassy slag. Heat is recovered from the slag in the following ways. As the spray of slag particles moves outwards from the atomizer, heat is lost by radiation to the vessel and by convection to the air moving through ...

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Dry Slag Granulation with Heat Recovery - ABM Proceedings

Dry Granulation Concept. Dry slag granulation is based on molten slag atomisation using a variable speed rotating cup or dish (see Figure 1). The slag is delivered on to the centre of the cup from a slag runner via a vertical refractory lined pipe. The rotation of the cup forces the slag outwards to the cup lip where it is atomised (see Figure 2).

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RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A PATH

Molten slag from pyrometallurgical furnaces is tapped at high temperature, carrying a large amount of thermal energy. But the common slag dumping and water granulation methods used for slag treatment do not permit energy recovery. Furthermore, water is present in these processes and while operations are designed to minimize risks of steam explosions, from the contact of slag with water, these ...

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Dry slag granulation with integrated heat ... - Publications

Jun 27, 2011  Dry slag granulation could make a fundamental change in slag treatment. In this new approach, molten slag is atomized under centrifugal forces on a spinning disc, and the droplets generated are quenched and solidified quickly using air, with simultaneous heat recovery. The process produces solid slag granules suitable for cement-making and hot ...

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Energy–environment–economy evaluations of commercial scale ...

Jun 01, 2016  A prototype dry slag granulation system was proposed and designed in commercial scale. • The input and output flows of each slag-treatment system were identified. • Life cycle assessment on the dry slag granulation method and water quenching methods was carried out. • Economic costs and returns during the lifetime of slag were calculated.

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Technical Papers

Dry Slag Granulation: A Path to Improving the Safety and Sustainability of the Metallurgical Sector Author(s): L.C. So, S. Mostaghel, G. Chahal, S. Faucher, S.K. Lee, S.-Y. Oh Conference of Metallurgists, August 23–26, 2015, Toronto, Ontario, Strategies to use

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Innovating for Nature Primetals Technologies

Dry slag granulation, a technology that is still in development, recovers heat energy from blast-furnace slag, and lots of it—approximately 1.7 gigajoules per ton of slag. All of these solutions, directly or indirectly, lower the amount of CO 2 released into the atmosphere by a steel plant.

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Granulation and Heat Recovery from Metallurgical Slags ...

Dec 09, 2019  Fleischanderl A, Fenzl T, Neuhold R (2018) Dry slag granulation—the future way to granulate blast furnace slag. In: AISTech 2018 conference proceedings, pp 87–94. 45. Olli A (2018) Personal communication. Nov 2018. 46. Fenzl T, Neuhold R, Rummer B (2017) Installation of a dry slag granulation pilot plant at blast furnace A of Voestalpine.

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The Late-Model Technology Dry Granulator Process With High ...

Jul 24, 2021  DRY SLAG GRANULATION WITH HEAT RECOVERY* A well balance between roller speed, hydraulic Effect of Process Variables on Granules and pressure, screw feeder speed, granulator speed, Tablet Properties roller gap and screen selection is critical for Speed of material feed system viz. screw successful formulation of drugs through RCDG feeder/combi vent feeder, roller and granulator

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(PDF) Experimental study of rotating dry slag granulation ...

Experimental study of rotating dry slag granulation unit: Operating regimes, particle size analysis and scale up. Download. Related Papers. CFD simulation of free surface flow and heat transfer of liquid slag on a spinning disc for a novel dry slag granulation process. By Peter Witt.

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Experimental investigation on granulation characteristics ...

Feb 05, 2021  The DSG technology mainly involved two strategies: slag granulation and heat exchange . Gas quenching granulation technique is a kind of dry slag granulation (DSG) technique. For the gas quenching granulation technique, the molten slag is granulated by aerodynamic force to form droplets which are cooled to form solid slag particles.

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RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: A

2.3 Dry Slag Granulation Significant research and development has occurred in the area of Dry Slag Granulation (DSG) over the past decades. Development of DSG technologies is driven by the desire to improve safety and sustainability of conventional slag handling methods. The most significant advantage of DSG is that it provides a safer and more

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(PDF) Experimental study of rotating dry slag granulation ...

Experimental study of rotating dry slag granulation unit: Operating regimes, particle size analysis and scale up. Download. Related Papers. CFD simulation of free surface flow and heat transfer of liquid slag on a spinning disc for a novel dry slag granulation process. By Peter Witt.

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(642e) Dry Granulation of Blast Furnace Slag for Heat ...

Nov 07, 2013  Using dry slag granulation at integrated steel and iron mills will gain access to the sensible heat of the blast furnace slag. The recovered energy can be used for the production of steam or electricity or for other useful preheating processes. An energy

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CFD modelling of dry slag granulation using a novel ...

of Liquid Slag on a Spinning Disc for a Novel Dry Slag Granulation Process”, Progress in Computational Fluid Dynamics, Vol. 10, Nos. 5-6, 2010, pp. 292-299. 7. Y. Pan, P. J. Witt, B. Kuan, and D. Xie, “CFD Simulation of Slag Droplet Formation by a Spinning Disc in Dry Slag Granulation Processes”, 8th International Conference on CFD

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

Aug 09, 2014  The dry slag granulation process is essentially to atomize the liquid slag and then to cool the particles rapidly so as to produce a glassy slag. The atomization is done using a rotary cup air blast atomizer. The particles cool as they travel through

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THE DRY BLAST- FURNACE SLAG GRANULATION AS

THE DRY BLAST- FURNACE SLAG GRANULATION AS RESOURCE AND ENERGY ECONOMY IN THE METALLURGY Elena Konchenko Donetsk National Technical University, Ukraine Slag treatment is the main ecological problem of the modern Ukraine metallurgy manufacture. The blast-furnace slag is the by-product of the ironmaking process.

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Dry Slag Granulation with Waste Heat Recovery

Aug 09, 2016  CSIRO’s Dry Slag Granulation Process Technical Challenges – Optimum disc and reactor design – Handling of hot granules – Compact reactor for efficient recovery of high grade waste heat and lower capital cost Concept Development 2006/7 Motor Air Hotair >600 C Discharge 500 C 100 C Slag 1500 C Air ICST 2012, Dresden 6 7.

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Development of Molten Slag Dry Granulation and Heat ...

Development of Molten Slag Dry Granulation and Heat Recovery in Steel Industry. The difficulties of molten metallurgical slag (including blast furnace slag and steel slag,etc.) heat recovery caused by low thermal conductivity and high enthalpy are analyzed.The processes of molten slag dry granulation combined heat recovery by physical means ...

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Technical Papers

Dry Slag Granulation: A Path to Improving the Safety and Sustainability of the Metallurgical Sector Author(s): L.C. So, S. Mostaghel, G. Chahal, S. Faucher, S.K. Lee, S.-Y. Oh Conference of Metallurgists, August 23–26, 2015, Toronto, Ontario, Strategies to use

More

Innovating for Nature Primetals Technologies

Dry slag granulation, a technology that is still in development, recovers heat energy from blast-furnace slag, and lots of it—approximately 1.7 gigajoules per ton of slag. All of these solutions, directly or indirectly, lower the amount of CO 2 released into the atmosphere by a steel plant.

More

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 developed for granulating molten slag discharged from ...

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Global Slag

Dry slag granulation saves on transportation costs owing to the dry product, involves no drying at the cement factory, the dry granules do not freeze in winter thanks to low water content and the granulated slag has a higher bulk density (1.3-1.4t/m3) than water-cooled granulated slag (1.0-1.1t/m3).

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CN102329900B - Liquid steel slag dry-process granulating ...

The invention relates to a liquid steel slag dry-process granulating device and a sensible heat recovery method. The liquid steel slag dry-process granulating device comprises a feeding device, a dry-process granulator, a cyclone separator and a sensible heat recovery device, wherein the dry-process granulator, the cyclone separator and the sensible heat recovery device are mutually

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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.

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