dry slag granulation



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RECENT DEVELOPMENTS IN DRY SLAG GRANULATION A PATH ,

23 Dry Slag Granulation Significant research and development has occurred in the area of Dry Slag Granulation DSG over the past decad 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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DRY SLAG GRANULATION DEVICE METHOD

1 A directional dry slag granulation device, the device comprising a rotary atomising granulator having a centreline axis of rotation a slag stream feed and a position controller wherein a slag stream fall point on the rotary granulator for slag from the slag stream feed is offset from and non-concentric with the centreline axis of rotation of the rotary granulator wherein the rotary ,...

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PDF Heat Recovery from Slag through Dry Granulation

Dry slag granulation at a spinning disc Key Results/Findings A conceptual flowsheet has been developed in the 1 st year by June 2007 of the project based on process modelling and focused ,...

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Northam Converter Dry Slag Granulation

22-10-2020 0183 32 However, a dry slag granulation system had not yet been deployed in the non-ferrous industry Although it has demonstrated success in the steelmaking industry for decades, adoption of a dry granulation solution in non-ferrous industries has been challenged by the technical risks associated with process uncertainties and by the financial risks associated with investing capital in new equipment...

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Dry Slag Granulation System And Method

A dry slag granulation system comprises a rotary atomising granulator 5 and a tundish 3 wherein the tundish comprises a delivery outlet 4 an overflow outlet 7 and a set of moveable mounts 8a, 8b The device further comprises at least one of a tundish weight sensor 9 a granulator drive...

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EP2922976B1

Dry slag granulation system and method Download PDF Info Publication number EP2922976B1 EP2922976B1 EP137948618A 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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CSIRO Research Publications Repository

27-06-2011 0183 32 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...

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Some Fundamental Aspects of the Dry Slag Granulation Process

Keywords molten slag, dry granulation, heat recovery, kinetics, sulphur transfer, dynamic wetting and spreading 1 Introduction Each year hundreds of millions tonnes of slags are produced as byproducts of ferrous and non-ferrous metallurgical industries worldwide...

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EXPERIENCES FROM TESTS USING A INDUSTRIAL TEST

EXPERIENCES FROM TESTS USING A INDUSTRIAL TEST-RIG FOR DRY GRANULATION OF BF-SLAG Mikael Lindvall 1 , Lars-Olov , Anders Stenberg2, Diana Orrling2, Martin 214 lund1, Maria Landberg3 1Swerea MEFOS 2SSAB Merox 3Lule 229 University of Technology MSc, Research Engineer, mikaellindvall swerease...

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PDF Dry slag granulation with integrated heat recovery

Dry slag granulation with integrated heat recovery July 2011 Conference 1st International Conference on Energy Efficiency and CO2 Reduction in the Steel Industry EECR Steel 2011 At ,...

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THE DRY BLAST

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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Blast furnace slag obtained from dry granulation method as ,

Dry granulation slag can be used as an excellent material substitution for cement The crystalline and amorphous C AS H formed in dry granulation slag cement paste The later strength of dry granulation slag cement mortar was higher than that of cement mortar article info Article history Received 14 June 2016 Received in revised form 7 ,...

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642e Dry Granulation of Blast Furnace Slag for Heat ,

07-11-2013 0183 32 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 process An energy ,...

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Dry Granulation of Blast Furnace Slag for Energy Recovery ,

09-08-2014 0183 32 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 BF slag is rich in CaO, SiO2, Al2O3, and MgO which are ,...

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Dry Slag Granulation Device Method

Dry slag granulation is a relatively undeveloped technology which uses a rotary atomiser, typically a spinning cup or dish, to convert molten slag for example obtained as a by-product of iron making in a blast furnace into granules, without the addition of water to cool and harden the slag...

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DRY SLAG GRANULATION SYSTEM AND METHOD

1 A dry slag granulation system comprising a rotary atomising granulator 6 and a tundish 3 wherein the granulator comprises a cup or disk 5 wherein the tundish comprises a delivery outlet 4 , an overflow outlet 7 and a set of moveable mounts 8a, 8b and wherein the device further comprises at least one of a tundish weight sensor, a granulator drive motor power sensor 13 , a ,...

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Dry Granulation of Slags for Producing Cement Binder

Dry granulation atomisation is emerging as an alternative technology, the resulting solid product does not require drying, and possibilities exist for recovering heat energy from the hot slag CSIRO Minerals has well-developed skills and equipment in pilot-scale pyrometallurgical treatment, and granulation of molten slag, including traditional wet, and also dry methods...

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Dry Slag Granulation with Heat Recovery

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...

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Instantaneous measurements of granular blast furnace slag ,

Abstract An instantaneous measurement method was developed to measure the surface temperature and surface emissivity of blast furnace slag for investigating dry granulation and waste heat recovery from blast furnace slagThe system was used to measure temperature-gray scale and emissivity-temperature relationships from granular blast furnace slag images captured by a high-speed camera based on ,...

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Design and Operation of Dry Slag Granulation Pilot Plant ,

22-02-2019 0183 32 CSIRO Dry Slag Granulation Process Overview The CSIRO dry granulation process involves a two-step operation involving a granulator and a moving bed counter-current heat exchanger as shown in Fig 1 The granulator receives and atomizes molten slag to produce liquid droplets, which are rapidly quenched to become solid granul...

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Experimental study of rotating dry slag granulation unit ,

25-08-2016 0183 32 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 130 176 C compared to BF slag at 1500 176 C...

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Dry Granulation of Blast Furnace Slag

04-04-2019 0183 32 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 Atomization is done using a rotary cup air blast atomizer Fig 1 The particles cool as they travel through the air and are then cooled further in a fluidized bed Both of these cooling processes provide ,...

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Dry slag granulation producing valuable by

23-08-2016 0183 32 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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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 Metal Recovery Slag

18-05-2020 0183 32 Dry Slag Granulation With Waste Heat Recovery Dry slag granulation with waste heat recovery 1Minerals down under national research flagship current status future direction of csiros dry slag granulation process with waste heat recovery icst 2012, dresden, germany 1-3 october, 2012 sharif jahanshahi and dongsheng xie 2 Get Price...

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