近十年來,由(you)于(yu)能(neng)(neng)源緊張,隨著節能(neng)(neng)工作進一步開展。各種(zhong)新(xin)型(xing),節能(neng)(neng)先進爐(lu)型(xing)日趨完(wan)善,且采用新(xin)型(xing)耐火纖(xian)維等專業(ye)保(bao)溫材料后使得爐(lu)窯(yao)散熱(re)損失明(ming)顯下降(jiang)(jiang)。采用先進的燃燒裝(zhuang)置強化(hua)了(le)燃燒,降(jiang)(jiang)低(di)了(le)不完(wan)全燃燒量,空(kong)燃比也(ye)趨于(yu)合理(li)。然而,降(jiang)(jiang)低(di)排煙熱(re)損失和回收(shou)煙氣(qi)余(yu)熱(re)的技術(shu)仍(reng)進展不快。為了(le)進一步提高窯(yao)爐(lu)的熱(re)效率(lv),達到節能(neng)(neng)降(jiang)(jiang)耗的目(mu)的,回收(shou)煙氣(qi)余(yu)熱(re)也(ye)是一項重(zhong)要的節能(neng)(neng)途徑。