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A new system oj fixing the temperature oj hot blast jor a blast Jurnace is pro,bosed. This new system is composed oj two or more hot stoves and a temperature equalizer which is a heat accumulator filled with checker bricks. The hot blast J rom a hot stove, whose temperature challges with the lal1se if time, is passed through the temperature equalizer. The temperature oj hot blast at the exit Q{ temperature equalizer was calculated ill several cases, al/d the result shows that it can be kept nearly equal to the average value oj the temperature Q{ hot blast at the exit if hot slove, as obtained by the staggered-rap-parallel operation. The secolld proposal is that the h~at tranifer coefficient oj all ordinury FreYIl type checker brick can be increased by 2 to 2.6 times by reducing the inner diameter sectiolls at the gas passages. By using these new(y designed checker bricks, the Juel gas cOl/sumptioll can be remarkably saved and it becomes possible to obtaill hot blast oj the desired temperature with lower combustion gas temperature.

Proposals of Hot Blast Stove Design