Expansion / shrinkage of bottom masses hearth during firing

G. D. Apalkova

doi:10.17073/1683-4518-2020-3-61-64

Expansion / shrinkage of bottom masses hearth during firing

G. D. Apalkova

https://doi.org/10.17073/1683-4518-2020-3-61-64

Full Text:

Abstract

The actualization of the problem of shrinkage phenomena in the process of firing the bottom, contributing to the opening of joints and the formation of cracks, is shown. The modern methods and means of studying expansion / shrinkage of the bottom masses during firing are analyzed. The expansion / shrinkage of bottom masses, differing in the ratio of the carbon component (anthracite) and artificial graphite in their composition, was investigated. It has been established that shrinkage phenomena decrease in a row from anthracite mass to graphitoanthracite. Studies have shown that the difference in the scale of linear changes during structural shrinkage is quite significant ― about 20 %. It was noted that the minimization of shrinkage phenomena contributing to the opening of joints and the formation of cracks is one of the factors to reduce the risk of leakage of the bottom of the cell. In this regard, it is advisable to optimize the rate of shrinkage of the bottom masses during the firing process at the stage of its structural adjustment, taking into account the conditions of their operation

Keywords

carbon lining materials, bottom masses, interblock seams, expansion / shrinkage of bottom masses,

About the Author

G. D. Apalkova

ФГАОУ ВО «Южно-Уральский государственный университет»
Russian Federation

References

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Supplementary files

For citation: Apalkova G.D. Expansion / shrinkage of bottom masses hearth during firing. NOVYE OGNEUPORY (NEW REFRACTORIES). 2020;(3):61-64. https://doi.org/10.17073/1683-4518-2020-3-61-64

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