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熱(re)(re)(re)風(feng)(feng)(feng)(feng)管(guan)(guan)道的(de)作用(yong)是將熱(re)(re)(re)風(feng)(feng)(feng)(feng)從(cong)熱(re)(re)(re)風(feng)(feng)(feng)(feng)爐(lu)(lu)輸送和分配到高(gao)爐(lu)(lu)的(de)各(ge)個(ge)風(feng)(feng)(feng)(feng)口(kou)裝置。從(cong)熱(re)(re)(re)風(feng)(feng)(feng)(feng)爐(lu)(lu)出來的(de)熱(re)(re)(re)風(feng)(feng)(feng)(feng)（1000℃～1280℃）先經過與每座熱(re)(re)(re)風(feng)(feng)(feng)(feng)爐(lu)(lu)相(xiang)連接的(de)熱(re)(re)(re)風(feng)(feng)(feng)(feng)支(zhi)管(guan)(guan)匯入(ru)(ru)熱(re)(re)(re)風(feng)(feng)(feng)(feng)主管(guan)(guan)，再通(tong)過混風(feng)(feng)(feng)(feng)室或豎管(guan)(guan)進入(ru)(ru)環(huan)在高(gao)爐(lu)(lu)本體外(wai)的(de)熱(re)(re)(re)風(feng)(feng)(feng)(feng)圍(wei)管(guan)(guan)，在熱(re)(re)(re)風(feng)(feng)(feng)(feng)圍(wei)管(guan)(guan)內熱(re)(re)(re)風(feng)(feng)(feng)(feng)將分配到高(gao)爐(lu)(lu)周圍(wei)的(de)送風(feng)(feng)(feng)(feng)支(zhi)管(guan)(guan)裝置進入(ru)(ru)高(gao)爐(lu)(lu)風(feng)(feng)(feng)(feng)口(kou)。