Conclusions
A technology was developed and adopted for producing high-density (porosity 12% or less) highalumina kaolin refractories to close tolerances, and of producing similar bricks but of increased thickness (345 × 150 × 150 mm).
It was found that the shrinkage of the fired brick is stabilized when 25% Polzhsk kaolin is added to the Novoselitsy kaolin to be calcined to chamotte.
The quality of the refractory can be improved, i.e., the Al2O3 content can be increased by using Novoselitsy kaolin alone while the density can be increased by increasing the proportion of the combination-ground mixture in the batch to 50–55%. In this case it will be necessary to use M-114 or SM-568 type roller mixers in place of the 115M edge-runner mixers, and an 88-ton stepped-action hydraulic press in place of an SM-143 toggle press.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
Literature cited
R. Ya. Rutkovskii, B. I. Levitanskii, and L. D. Yupko, Ogneupory, No. 8, 4–15 (1971).
N. V. Pitak, E. A. Ginyar, B. I. Levitanskii, et al., Ogneupory, No. 7, 28–37 (1968).
Z. Mackenzie, Refractories J., No. 4, 132–146 (1966).
T. Kochi, Refractories J., No. 6, 234–241 (1963).
J. L. Evans, Refractories J., No. 4, 6–22 (1971).
V. A. Sazhin, I. M. Kolesnik, I. P. Davydov, et al., Ogneupory, No. 7, 7–11 (1968).
Z. Mackenzie, Trans. Brit. Ceram. Soc.,61, No. 11, 795–807 (1962).
Author information
Authors and Affiliations
Additional information
Translated from Ogneupory, No. 1, pp. 6–8, January, 1975.
Rights and permissions
About this article
Cite this article
Bakalkin, A.P., Pitak, N.V., Starshinov, B.N. et al. High-density kaolin refractories for the lining of a 5000 m3 blast furnace. Refractories 16, 6–8 (1975). https://doi.org/10.1007/BF01287876
Issue Date:
DOI: https://doi.org/10.1007/BF01287876