Design and Operation of Dry Slag Granulation Pilot …
Journal of Sustainable Metallurgy (2019) 5:181–194 183 1 3 1.2-m-diametergranulatorwasdesignedandconstructedto provetheconceptatCSIROinMelbourne.Thiscouldoper -
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Effect of process parameters on dry centrifugal granulation of molten
Request PDF | Effect of process parameters on dry centrifugal granulation of molten slag by a rotary disk atomizer | Dry centrifugal granulation (DCG) experiments for blast furnace slag (BFS) were ...
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Increasing the Efficiency of Slag Granulation Plant in …
Fig.3: Slag Granulation Plant Process The process of slag granulation involves pouring of molten slag through a high pressure water spray in a granulation head, which is located very close …
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[PDF] Dry Slag Granulation
The design and erection for Phase 2 pilot-plant at the site of voestalpine Stahl in Linz has been fin ished in May 2017 followed by a intense commissioning phase. Since Ju ne 2017 discontinuous batch campaign operation are executed to gain know-how and allow for process optimization for lat er commercialization of the process.. This paper su mmarizes the major results until …
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Modeling on Dry Centrifugal Granulation Process of …
In this study, a physical and mathematical model of slag flow behavior in DCG process is established. The DCG process with a flat disc at different mass flow rate, temperature or …
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A Review of Granulation Process for Blast Furnace Slag
11ügranulated slag Figure 2. INBA process. 4 Dry granulation process On the blast furnace slag treatment technology, for a long time, water quenching process has token the leading position. However, there are many defects of water-quenching slag method, which can be roughly concluded as follow: a mass of sensible heat unrecovered, high
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[PDF] CFD modelling of dry slag granulation using a novel …
Slags generated in metallurgical industry are high volume by-products or wastes containing a large amount of heat. In blast furnace ironmaking, for example, for every tonne of hot metal produced, about 300 kg of slag is generated. The cooling of molten slag to ambient temperature can release up to 1.8 GJ/t of thermal energy. Blast furnace slags are currently either water …
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Evaluation of Influence of Air Quenching Granulation Process …
It is a steelmaking slag treatment process causing serious pollution and large land occupation and having significant safety problems. In rotating drum process, molten steelmaking slag is poured into a gap between two drums at an appropriate flow rate. Steelmaking slag is crushed by rolling depression, and granulation is achieved.
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Some Fundamental Aspects of Dry Slag Granulation …
The present paper covers some of the fundamental aspects of the reactions taking place during dry granulation of molten slag. In particular, the cut in sulphur emission from slag during DSG …
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(PDF) Valorization of LF slag: the Pittini Group …
CSIRO has been working on a dry granulation process, integrated with heat recovery, since 2002. It involves a rotary disc that atomizes molten slag to produce liquid droplets, which are rapidly ...
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Outotec SAF Smelting
the ferroalloy production process. Outotec Slag Granulation Typically, slag is granulated by using water sprays during tapping. Granulation is a cost-effective way to process slag for further usage. Because the granulation process uses water recycled from other water circuits in the plant, fresh water intake is minimized.
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(PDF) Dry slag granulation with integrated heat recovery
The iron and steel industry produces a waste product, slag. Dry Spinning Disc Granulation (DSDG) process has been experimentally tried, widely, for the granulation of Blast Furnace (BF) slag, with ...
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(PDF) Current status and future direction of …
PDF | On Oct 1, 2012, Sharif Jahanshahi and others published Current status and future direction of CSIRO's dry slag granulation process with waste heat recovery | Find, read and cite all the ...
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Blast Furnace Slag Granulation Technology | PDF
Blast Furnace Slag Granulation Technology - Free download as PDF File (.pdf), Text File (.txt) or read online for free. This document summarizes blast furnace slag granulation plant technology. A modern blast furnace can produce over 1 million tonnes of slag per year. Slag granulation using water sprays is an established process that simplifies blast furnace operations and provides an …
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Increasing the Efficiency of Slag Granulation Plant in …
Fig.3: Slag Granulation Plant Process The process of slag granulation involves pouring of molten slag through a high pressure water spray in a granulation head, which is located very close proximity to the blast furnace. Granulation process is controlled by quenching of the slag in cold water. This process does
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[PDF] Thermophysical processes in dry granulation of …
Mathematical model for theoretical analysis of thermophysical processes of melt drops solidification is examined during their motion inside cooling gas, applying to granulation task. The heat exchange equations during granulation, taking into account convection, heat conductivity in solid phase and Stefan conditions on the boundary of phase transition, are …
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RECENT DEVELOPMENTS IN DRY SLAG GRANULATION: …
introduce the Ecomaister-Hatch dry slag granulation process, and elaborate on future applications of the technology in the processing of argon oxygen decarburization and blast furnace slags.
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Experimental study of rotating dry slag granulation unit: …
This paper focuses on an experimental study of dry slag granulation process using an analogue for BF slag (a mixture of rosin and paraffin wax). This analogue can be used to experimentally study dry slag granulation at a relatively low temperature of 130 °C compared to BF slag at 1500 °C. Different ranges of operating conditions in terms of ...
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Simulation of ligament mode breakup of molten slag by …
Request PDF | On Jun 5, 2015, Dongxiang Wang and others published Simulation of ligament mode breakup of molten slag by spinning disk in the dry granulation process | Find, read and cite all the ...
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Some Fundamental Aspects of the Dry Slag Granulation …
the atmosphere through H 2S or acid mist, which could be a significant issue around water granulation plants. The CSIRO's Dry Slag Granulation (DSG) process is as a continuous two-step process ...
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Modeling on Dry Centrifugal Granulation Process of
Request PDF | Modeling on Dry Centrifugal Granulation Process of Molten Blast Furnace Slag | Lots of iron molten slag from blast furnace can be produced during iron making process. It is generally ...
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Process and Equipment Design for the Dry Slag …
Process and Equipment Design for the Dry Slag Granulation Technology | 343 4 Process and Equipment for Dry Slag Granulation Technology Based on the results above, the process and equipment of DSG technology was de-signed by the author. The process was as follows. The BF slag was transported to the slag treatment plant by the slag tank.
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Effects of granulator structure and cooperating mode with slag …
Since the 1980 s, Pickering et al. [5] proposed the dry centrifugal granulation process to treat high-temperature liquid slag. Later the dry centrifugal granulation technology has been paid more attention and research by scholars at home and abroad because it has the advantages of uniform slag particle size, high vitreous content, high waste heat recovery efficiency, and …
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Granulation and Heat Recovery from Metallurgical Slags
Metallurgical slags are produced at a massive rate of over 750 Mt/year, and carry a thermal energy equivalent to 40 Mt/year of coal. The potential mineral and thermal energy values of slags are in the order of $22 b and $3–6 b per year. Such attractive figures, together with tightening legislation on disposal of slag and the carbon footprint associated with the loss of …
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Prediction on particle size characteristics of high …
Request PDF | Prediction on particle size characteristics of high-temperature liquid blast furnace slag in a centrifugal granulation process | The centrifugal granulation technique has the ...
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Physical modeling of dry slag granulation process for …
Request PDF | On Jun 12, 2017, Kali Prasad published Physical modeling of dry slag granulation process for clinker production | Find, read and cite all the research you need on ResearchGate
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(PDF) Experimental study of rotating dry slag granulation …
This paper focuses on an experimental study of dry slag granulation process using an analogue for BF slag (a mixture of rosin and paraffin wax). This analogue can be used to experimentally study dry slag granulation at a relatively low temperature of …
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(PDF) ON HYDRODYNAMICS OF DRY SLAG GRANULATION OF LD/BOF SLAG
The iron and steel industry produces a waste product, slag. Dry Spinning Disc Granulation (DSDG) process has been experimentally tried, widely, for the granulation of Blast Furnace (BF) slag, with ...
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Economic and environmental evaluation of slag …
Wet granulation Dry granulation Fig. 18 Comparison of estimated capital and operating costs for the integrated dry slag granulation and heat recovery process with conventional wet granulation for ...
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Experimental investigation on granulation characteristics …
The gas quenching granulation technique was first developed by Mitsu-bishi Heavy Industries and Nippon Kokan KK (now JFE) [12].In the early works, airflow velocity was less than 100 m·s −1 [13], which brought about two problems: one was that impact kinetic energy was not enough, the obtained slag particle diameter was larger (the average diameter is about 2–4 …
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