dry slag granulation

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

22-02-2019· 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 granules suitable for use as a SCM, as per water granulation.

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 ...

Reactivity and performance of dry granulation blast ...

01-01-2019· The dry granulation slag were ground using ball milling, and then, the slag powder were mixed with clinker. Fig. 2 shows particle size distributions for cement clinker and dry granulation slag with different milling time, which were determined by using a laser diffraction particle size analyzer. The particle size distribution for dry granulation slag with 20-min-milled was about 36% of the ...

(PDF) Dry slag granulation with integrated heat recovery

Design and Operation of Dry Slag Granulation Pilot Plant. CSIRO has been working on a dry granulation process, integrated with heat recovery, since 2002. It involves a rotary disc that atomizes ...

DRY SLAG GRANULATION DEVICE & METHOD - SIEMENS PLC

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 ...

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

Dry slag granulation is based on molten slag atomization using a variable speed rotating cup or dish (see Fig. 1). The slag is fed from the slag runner via a vertical refractory lined pipe directly onto the center of the rotating cup.

Northam Converter Dry Slag Granulation - Hatch Ltd

22-10-2020· 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.

Dry slag granulation: producing valuable by-products from ...

The CSIRO's Dry Slag Granulation (DSG) process is as a continuous -step prtwo ocess as shown in Figure 1. The molten slag is first atomized using a spinning disc and the fine droplets (< 2 mm) produced contact with flowing air and

(PDF) Dry slag granulation of modified BOF slag

Dry slag granulation is the key to molten slag heat recovery. In this paper, we will present our current status on BOF slag modification and dry granulation. Therefore, the paper will be composed ...

Dry Granulation of Blast Furnace Slag | Steel360 News

04-04-2019· 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 the vessel.

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

slag granulation process - arboassistent.nl

THE DRY BLAST- FURNACE SLAG GRANULATION AS RESOURCE AND ENERGY ECONOMY IN THE METALLURGY Elena Konchenko Donetsk National Technical University, Ukraine Iron And Steel – Kalenborn Slag granulation, for example in the production of slag sand as a replacement for clinker, has become a procedure that is used all over the world.

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 ...

Dry Slag Granulation System And Method - Patent Details

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

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

Figure 4: Predicted relationship between slag tapping rate and disc spinning speed for maintaining different film thickness (Disc radius: 25 mm, Liquid slag viscosity: 0.7 Pa s, Liquid slag density: 2590 kg m-3). In summary, CFD modelling has played a key role in the design, operation and scale up of CSIRO's dry slag granulation process.

Hatch Ironmaking Technologies | Dry Slag Granulation ...

Dry Slag Granulation. Water granulation is the most commonly used method to handle blast furnace slag and requires a granulation and a dewatering step to process the slag. In water granulation, the energy in the slag is lost from water evaporation and cooling and is difficult or impossible to recover.

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

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

Dry Slag Granulation with Heat Recovery - ABM Proceedings

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

(PDF) Some fundamental aspects of the dry slag granulation ...

Some fundamental aspects of the dry slag granulation process. Yuhua Pan. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 35 Full PDFs related to this paper. READ PAPER. Some fundamental aspects of the dry slag granulation process. Download.

DRY SLAG GRANULATION SYSTEM AND METHOD - PRIMETALS ...

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 ...

dry granulation slags - bijzonderevakantielocatie.nl

Dry Slag Granulation (DSG) - YouTube Click to view on Bing4:10. May 09, 2019 · Primetals Technologies has developed a new innovative blast furnace dry slag granulation process with heat recovery at the voestalpine pilot plant in Linz, Austria.

Dry slag granulation - the environmentally friendly way to ...

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