Evaluation of Classification Possibility of Coke Breeze by Drag Force

• Autorzy: Lee Ji-A , Jin Bong-Min , Han Jeong-Whan

Identyfikatory

DOI

10.24425/amm.2024.147804

• Języki publikacji: EN

Abstrakty

EN

Sintered ore used as blast furnace burden materials is produced by mixing iron ore, coke, and limestone, then burning the coke and sintering the iron ore with the combustion heat. Among the coke charged, A particle size of 0.25 mm or less has an insignificant effect as a heat source and adhere to the surface of other materials to inhibit the reaction between oxygen and raw materials, thereby decreasing the quality of sintered ore. Therefore, to increase combustion efficiency, it is necessary to reduce the ratio of coke breeze in the charged coke. In this study, theoretical calculation, experiment and simulation were conducted to investigate the possibility of size classification by drag force in the process of dropping coke after being transported through a belt conveyor. The height of belt conveyor was at 1m, and velocity of the belt was 1.5, 2.3, and 2.6 m/s, which were considered as experimental variables. After falling, the distribution of coke particle size according to the horizontal travel distance was confirmed, and a fall trajectory prediction formula model was created through the drag model of polydisperse system and compared with the experimental and analysis results.

Słowa kluczowe

EN

powder processing; sintering process; coke breeze; numerical simulation; drag model

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2024
• Tom: Vol. 69, iss. 1
• Strony: 151--156
• Opis fizyczny: Bibliogr. 20 poz., fot., rys., tab., wzory

Twórcy

autor

Lee Ji-A

• Inha University, Department of Materials Science and Engineering, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea

• https://orcid.org/0009-0004-0977-1474

autor

Jin Bong-Min

• Inha University, Department of Materials Science and Engineering, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea

• https://orcid.org/0009-0008-8905-7746

autor

Han Jeong-Whan

• Inha University, Department of Materials Science and Engineering, 100 Inha-ro, Michuhol-gu, Incheon 22212, Republic of Korea

• https://orcid.org/0009-0008-5756-9376

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