Lining wear resistance in high-temperature tunnel furnaces

Abstract

This paper continues the presentation of results from observations and studies over many years on lining wear in tunnel furnaces for firing periclase, periclase-spinelide, and periclase-spinel refractories. New wear data are given for basic refractories in the major constructional elements in a high-temperature furnace: in the wall lining and in the burner embrasures. The mechanism has been defined for the flaking in wall lining elements, and some preliminary conclusions are confirmed from earlier studies that provided the basis for recommendations on upgrading wall lining in tunnel furnaces at the Magnesite Group Corporation.