Electric arc furnace dust injection into iron and steel melts

被引：0

作者：

Dofasco Inc., Hamilton, Ont. ^{[1
]}

不详 ^{[2
]}

机构：

[1] Dofasco Inc., Hamilton, Ont.

[2] Steel Research Centre, McMaster University, Hamilton, Ont.

来源：

Can Metall Q | 2006年 / 1卷 / 1-8期

关键词：

D O I：

10.1179/cmq.2006.45.1.1

中图分类号：

学科分类号：

摘要：

The dust generated during electric arc furnace (EAF) steelmaking contains zinc and lead. The dust can be injected into the furnace to enhance the zinc and lead grades in the dust; however, the kinetics of this operation is poorly understood. The kinetics was studied in experiments in which dust was injected into 70 kg heats of iron or steel in an induction furnace. Supplemental additions of carbon and oxygen to overcome the heat load on the system were also investigated. The zinc content increased from 16% Zn to 60 - 80% Zn. About 50% of the zinc in the dust dissolved in the iron or steel. The ZnO in the dust is shown to be reduced by dissolved carbon and the zinc vapour dissolved in the iron. The implications for EAF dust recycling are discussed. © Canadian Institute of Mining, Metallurgy and Petroleum.

引用

页码：1 / 8

页数：7

共 11 条

[1]

Schmitt R.A., Minimizing electric arc furnace dust generation, Electric Furnace Conference Proceedings, 56, pp. 567-581, (1998)

[2]

Zunkel A.D., Recycling of Metals and Engineered Materials, pp. 227-236, (2000)

[3]

Jensen J.T., Wolf K., Reduction of EAF dust emissions by injecting it into the furnace, MPT International, 3, pp. 58-62, (1997)

[4]

Evans L.G., Hogan L.C., Recycling of EAF dust by direct injection, Electric Furnace Conference Proceedings, 44, pp. 367-372, (1986)

[5]

Drissen A., Kuehn M., Heinen K., Jung H., Economical and ecological dust recycling by dust injection, European Electric Steel Congress, 5, pp. 178-186, (1995)

[6]

Sasamoto H., Fujisawa A., Behaviour of zinc on dust recycling in EAF, Electric Furnace Conference Proceedings, 56, pp. 123-125, (1998)

[7]

Maedgen D.R., Hunt H.D., An update on project S.T.A.R.: Zero waste program at chaparral steel, Electric Furnace Conference Proceedings, 56, pp. 561-566, (1998)

[8]

Colbert D., Electric Arc Furnace Dust Injection into Iron and Steel, (1999)

[9]

Deo B., Boom R., Fundamentals of Steelmaking Metallurgy, (1993)

[10]

Ellis A., Glover J., Mechanism of fume formation in oxygen steelmaking, Journal of the Iron and Steel Institute, 209, pp. 593-599, (1971)

← 1 2 →