Innovative Hydrovacuum Technology Of Granulation Of Metal Melts

Gorbenko, I.F.; Sakhvadze, David; Tsirekidze, T.I.

doi:10.15407/sem2018.04.06

Sovrem. elektrometall.

2018

DOI: 10.15407/sem2018.04.06

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Innovative Hydrovacuum Technology Of Granulation Of Metal Melts

I.F. Gorbenko¹,

David Sakhvadze²,

T.I. Tsirekidze³

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Cited by 4 publications

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“…The new development is based on a radically different effect, the essence of which is to initiate the process of forced vertical (vacuum) suction of a liquid jet and its dispersion when it enters the rarefied core of a hydromechanical vortex [3]. The process is dynamic and continuous.…”

mentioning

confidence: 99%

Technological line for production of activated powders by hydro-vacuum dispersion of liquid metals

Sakhvadze,

Jandieri,

Sakhvadze

et al. 2024

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mentioning

confidence: 99%

Technological line for production of activated powders by hydro-vacuum dispersion of liquid metals

Sakhvadze,

Jandieri,

Sakhvadze

et al. 2024

InterConf+

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Physical and Technological Features of Mechanoactivation of Powder Particles Formed during Hydro-Vacuum Dispersion of Metallic Melts

Jandieri,

Sakhvadze,

Saralidze

et al. 2024

Phys. Metals Metallogr.

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A new technological approach to the granulation of slag melts of ferrous metallurgy: obtaining glassy fine-grained granules of improved quality

Sakhvadze

Jangveladze²,

Sakhvadze³

2021

J. Eng. Appl. Sci.

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The technological factors required to improve the operational properties of granulated metallurgical slags demanded in the building industry have been analyzed. In order to satisfy these factors, a new technology for hydro-vacuum granulation of slag melts (HVG) has been developed. It is shown that the main advantage of the proposed HVG process is the provision of forced high-speed vortex convection of water, with the effect of vertical suction, crushing, and degassing of the three-phase (water–slag granules–water vapor) heterogeneous medium formed during the overcooling and solidification of slag. It is proved that the high-speed volumetric disintegration and overcooling with the degassing effect sharply reduces a degree of aggressive gas/vapor impact on the being cooled particles of slag, which, in turn, leads to the reduction of the perforation degree of the granules. The obtained granules are distinguished by stable fractionation and improved, well-defined dense amorphous glassy structure, the water-holding capacity of which has reduced from 45–50% to 25–13%, the actual moisture content from 24–20% to 6–4%, while the hydraulic activity in terms of CaO-uptake increased from the conventional 320–360 mg/g to 610–650 mg/g. Pilot scale research demonstrated that the designed equipment for the HVG technology allows sustainable control of the quality of granules, and it has the potential for further development and implementation.

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Innovative Hydrovacuum Technology Of Granulation Of Metal Melts

Cited by 4 publications

References 0 publications

Technological line for production of activated powders by hydro-vacuum dispersion of liquid metals

Technological line for production of activated powders by hydro-vacuum dispersion of liquid metals

Physical and Technological Features of Mechanoactivation of Powder Particles Formed during Hydro-Vacuum Dispersion of Metallic Melts

A new technological approach to the granulation of slag melts of ferrous metallurgy: obtaining glassy fine-grained granules of improved quality

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