Hot stove refractories
Consisting of a combustion chamber and a checker chamber, the hot stove is a heat-storage type of heat-exchanging furnace that produces hot blasts blown through tuyeres into the blast furnace.
In the checker chamber, the checker bricks with numerous gas holes through them are piled up, playing the role of storing heat provided by the hot combustion gas.
Characteristics of refractories required for hot stove furnaces
Three or four hot stoves are installed beside one blast furnace, and operated alternately in combusting fuel and in blowing hot blasts of 1100 - 1300℃. Being exposed to such high temperatures, the hot stove refractories must be sufficiently durable against compression under high temperature for a long time showing as little deformation as possible.
General requirements of hot stove refractories are
＊Volumetric stability at relatively high temperatures
＊Little residual shrinkage
＊High specific heat
＊Thermal spalling resistance
＊Corrosion resistance
Long before others, Krosaki Harima Corporation developed and supplied excellent hot stove refractories which fulfill the requirements mentioned above, using its experience and knowledge accumulated over many years.
Hot stove
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Figure of a Hot stove
