煉鐵高爐熱風爐作用(yong)是把鼓風(feng)加(jia)(jia)熱(re)(re)到(dao)要求的(de)溫(wen)度(du),用(yong)以提(ti)高(gao)高(gao)爐的(de)效益(yi)和效率;它是按“蓄熱(re)(re)”原理工作的(de)。在燃燒室里(li)燃燒煤氣,高(gao)溫(wen)廢氣通過格(ge)(ge)子(zi)(zi)磚并(bing)使之蓄熱(re)(re),當格(ge)(ge)子(zi)(zi)磚充分加(jia)(jia)熱(re)(re)后,熱(re)(re)風(feng)爐就可改為送(song)(song)(song)風(feng),此(ci)時(shi)有關燃燒各(ge)閥關閉(bi),送(song)(song)(song)風(feng)各(ge)閥打開,冷風(feng)經格(ge)(ge)子(zi)(zi)磚而被(bei)加(jia)(jia)熱(re)(re)并(bing)送(song)(song)(song)出。高(gao)爐裝有3-4座熱(re)(re)風(feng)爐時(shi),兩或三座加(jia)(jia)熱(re)(re),一座送(song)(song)(song)風(feng),輪流更換時(shi),兩座加(jia)(jia)熱(re)(re)。