近十年來,由于能(neng)(neng)(neng)源緊(jin)張,隨著(zhu)節(jie)能(neng)(neng)(neng)工(gong)作進(jin)(jin)一步(bu)(bu)開展。各種新(xin)型,節(jie)能(neng)(neng)(neng)先進(jin)(jin)爐型日趨(qu)完善(shan),且采(cai)(cai)用(yong)(yong)新(xin)型耐火纖維(wei)等專業保溫(wen)材料后使得爐窯(yao)散熱損(sun)失明顯下降(jiang)。采(cai)(cai)用(yong)(yong)先進(jin)(jin)的燃燒裝置(zhi)強化了(le)燃燒,降(jiang)低(di)了(le)不完全燃燒量(liang),空燃比也趨(qu)于合理。然而,降(jiang)低(di)排煙(yan)熱損(sun)失和回(hui)收煙(yan)氣余熱的技術仍進(jin)(jin)展不快。為了(le)進(jin)(jin)一步(bu)(bu)提高窯(yao)爐的熱效率,達到節(jie)能(neng)(neng)(neng)降(jiang)耗的目(mu)的,回(hui)收煙(yan)氣余熱也是一項重要的節(jie)能(neng)(neng)(neng)途徑。