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Open AccessArticle

Exploring Efficiencies: Examining the Possibility of Decreasing the Size of the Briquettes Used as the Batch in the Electric Arc Furnace Dust Processing Line

AGH University of Science and Technology, Faculty of Mechanical Engineering and Robotics, Department of Manufacturing Systems, 30-059 Kraków, Poland
Sustainability 2020, 12(16), 6393; https://doi.org/10.3390/su12166393
Received: 8 July 2020 / Revised: 3 August 2020 / Accepted: 5 August 2020 / Published: 8 August 2020
Sintering of well-prepared briquetted mixtures in a shaft furnace is one of the possible methods of electric arc furnace dust (EAFD) utilization. Simultaneously, some metal oxides from exhaust gases can be separated. In this way, various metals are recovered, particularly zinc. As a result, zinc-free briquettes are produced with a high iron content, which can be used in the steelmaking process. This method is still being developed. In Ostrowiec Świetokrzyski, Poland, a prototype line of a new method for the reduction of zinc oxide in a shaft furnace with simultaneous sintering of briquettes was installed. The batch for the shaft furnace was actually briquetted in the roller press, which produces briquettes with a volume of 13 cm3. It may prove beneficial to reduce the size of the resulting briquettes, as a smaller size could prove more efficient in reducing zinc in the furnace. Decreasing the volume of the briquettes causes an increase in the power consumption in the drive system and brings an increase in the briquetting force, which occurred in the compaction zone. It could be harmful to the roller press construction. The aim of this article was to prove that decreasing the volume of briquettes of the EAFD mixtures had no negative effects on the roller press which was installed in the prototype line. View Full-Text
Keywords: EAFD processing; briquetting; EAFD briquette; zinc recovery; briquetting conditions EAFD processing; briquetting; EAFD briquette; zinc recovery; briquetting conditions
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Bembenek, M. Exploring Efficiencies: Examining the Possibility of Decreasing the Size of the Briquettes Used as the Batch in the Electric Arc Furnace Dust Processing Line. Sustainability 2020, 12, 6393.

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