HEAT LOAD MEASURING METHOD OF BLAST FURNACE BODY

摘要

PURPOSE:To improve the accuracy of the measurement of the heat load of a blast furnace body, by measuring thermal flow bundles at the center of the bottoms of concave grooves set so that the isothermal curves in the concave grooves of a cooling device of the blast furnace body approximately be parallel in the height direction of the furnace body. CONSTITUTION:A plurality of concave grooves 10 for facilitating furnace wall inner surface firebrick support are arranged to a surface facing to the furnace inside of a stave cooler 3 at intervals in the furnace height direction, casting bricks 12 are casted into the concave grooves 10 and a detecting portion of a thermal flow meter 14 is mounted to a point A of the center of the bottoms of the concave grooves 10. When the depth l of the concave groove 10 is long and the width d is small, the isothermal curve large meanders in the concave groove 10; when the width d is lengthened and the depth l is shortened, the meandering of the isothermal curve is improved. The larger the heat transfer rate lambda of the casting bricks 12 is the less the less the effect of the depth l and width d of the concave grooves 10 becomes. Thus, the accuracy of the measurement of heat load can be bettered by selecting the shapes of the concave grooves 10, which do not produce the meandering of the isothermal curves, and the heat transfer rate lambda of the casting bricks 12.