Liang Qian, Susen Cheng,  and Hongbo Zhao, Quantificational indexes for design and evaluation of copper staves for blast furnaces, J. Univ. Sci. Technol. Beijing, 15(2008), No. 1, pp. 10-16. https://doi.org/10.1016/S1005-8850(08)60003-1
Cite this article as:
Liang Qian, Susen Cheng,  and Hongbo Zhao, Quantificational indexes for design and evaluation of copper staves for blast furnaces, J. Univ. Sci. Technol. Beijing, 15(2008), No. 1, pp. 10-16. https://doi.org/10.1016/S1005-8850(08)60003-1
Metallurgy

Quantificational indexes for design and evaluation of copper staves for blast furnaces

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  • The quantificational and normative design is the precondition of improving the design of copper staves for blast furnaces. Based on a 3-dimensional temperature field calculation model, from the view point of heat transfer and long campaigns note with the core of forming accretion, the forming-accretion-ability (FAA) and the rib hot surface maximum temperature difference (△Tmax) as quantificational indexes to direct and evaluate the design of copper staves for blast furnaces were presented. The application of the two indexes in design essentially embodies the new long campaigns in the stage of design. With the application of the two indexes, good results can be obtained. Firstly, it was suggested that the rib height of a copper stave can be reduced to 15 mm, which is a new method and theory for the reduction of copper staves. Secondly, the influence of insert on FAA and △Tmax, is decided by the volume of insert. According to this, the principle of design for the hot surface geometry of copper staves was put forward that the ratio of the rib hot surface to the copper stave hot surface (abbreviated as the ratio of rib to stave) must be maintained in the range of 45% to 55%; for the present copper stave with a 35-40 mm thick rib, the ratio of rib to stave in the range of 50% to 55% can optimize the design of copper staves; for the copper stave with a smaller rib thickness, for example 15 ram, the ratio of rib to stave in the range of 45% to 50% can optimize the design of copper staves. It can be summarized that the thicker the rib thickness, the larger is the ratio of rib to stave.
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