3D Model Studies on the Effect of Bed and Powder Type Upon Radial Static Pressure and Powder Distribution in Metallurgical Shaft Furnaces

• Autorzy: Panic B.

Identyfikatory

DOI

10.1515/amm-2017-0224

• Języki publikacji: EN

Abstrakty

EN

The flow of gases in metallurgical shaft furnaces has a decisive influence on the course and process efficiency. Radial changes in porosity of the bed cause uneven flow of gas along the radius of the reactor, which sometimes is deliberate and intentional. However, holdup of solid particles in descending packed beds of metallurgical shaft furnaces can lead to unintentional changes in porosity of the bed along the radial reactor. Unintentional changes in porosity often disrupt the flow of gas causing poor performance of the furnace. Such disruptions of flow may occur in the blast furnace due to high level of powder content in gas caused by large amount of coal dust/powder insufflated as fuel substitute. The paper describes the model test results of radial distribution of static pressure and powder hold up within metallurgical reactor. The measurements were carried out with the use of 3D physical model of two-phase flow gas-powder in the moving (descending) packed bed. Sinter or blast furnace pellets were used as packed bed while carbon powder or iron powder were used as the powder. Wide diversity within both static pressure distribution and powder distribution along the radius of the reactor were observed once the change in the type of powder occurred.

Słowa kluczowe

EN

blast furnace; system descending packed bed–gas-powder; pressure; holdup powder

• 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: 2017
• Tom: Vol. 62, iss. 3
• Strony: 1449--1452
• Opis fizyczny: Bibliogr. 11 poz., rys., tab.

Twórcy

autor

Panic B.

• Silesian University of Technology, Institute of Metals Technology, Katowice, Poland

Bibliografia

• [1] R. C. Brown, H. Shi, G. Colver, S.-C. Soo, Powder Technology 138 (2-3), 201-210 (2003).
• [2] L. Guan, Z. Gu, Z. Yuan, L. Yang, W. Zhong, Y. Wu, S. Sun, Fuel 163, 122-128 (2016).
• [3] J. Xu, S.-L. Wu, Gulo, K.-P. Du, 6th International Congress on the Science and Technology of Ironmaking 2012, ICSTI 2012; Rio de Janeiro; Brazil; 14 October 2012 through 18 October 2012; Code 99237, 1, 414-424 (2012).
• [4] H. Nogami, Y. Ueki, Yasuaki, T, Murakami, S. Uesda, Tetsu-To--Hagane Journal of the Iron and Steel Institute of Japan, 100 (2), 227-245 (2014).
• [5] S. Kikuchi, T. Kon, S. Ueda, S. Natsui, R. Inoue, T. Ariyama, ISIJ International, 55 (6), 1313-1320 (2015).
• [6] T. Merder, J. Pieprzyca, M. Warzecha, Metalurgija, 48 (3), 143-146 (2009).
• [7] M. Saternus, T. Merder, P. Warzecha, Solid State Phenomena, 176, 1-10 (2011).
• [8] B. Wright, P. Zulli, Z.Y. Zhou, Powder Technology 208 (1), 86-90 (2011).
• [9] S.-W. Du, Ch.-P. Yeh, W.-H. Chen, Ch.-H. Tsai, J. A. Lucas, Fuel 143, 98-106 (2015).
• [10] B. Panic, Metalurgija, 52 (2), 177-180 (2013).
• [11] B. Panic, Metalurgija, 50 (3), 183-187 (2011).

Uwagi

EN

This work was supported by Polish Ministry for Science and Higher Education under internal grant BK264/RM2/2016 for Institute of Metals Technology, Silesian University of Technology, Poland.

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017)