近十年來,由于能(neng)源緊(jin)張,隨著節能(neng)工作進(jin)一步(bu)開展(zhan)。各種新型(xing)(xing)(xing),節能(neng)先進(jin)爐(lu)(lu)型(xing)(xing)(xing)日趨完善,且采用(yong)(yong)新型(xing)(xing)(xing)耐火纖維等專(zhuan)業(ye)保溫材料后(hou)使得爐(lu)(lu)窯散熱損失(shi)明(ming)顯下降。采用(yong)(yong)先進(jin)的燃(ran)燒(shao)裝(zhuang)置強化了燃(ran)燒(shao),降低(di)了不(bu)完全燃(ran)燒(shao)量,空燃(ran)比也趨于合理。然而(er),降低(di)排煙(yan)(yan)熱損失(shi)和回收(shou)煙(yan)(yan)氣余(yu)熱的技(ji)術仍進(jin)展(zhan)不(bu)快。為了進(jin)一步(bu)提(ti)高窯爐(lu)(lu)的熱效率(lv),達到節能(neng)降耗的目的,回收(shou)煙(yan)(yan)氣余(yu)熱也是一項重(zhong)要的節能(neng)途(tu)徑。