焦爐煤氣(qi)(qi)在燃燒室燃燒產(chan)(chan)生的(de)廢氣(qi)(qi)，經(jing)(jing)過(guo)蓄熱(re)(re)室格(ge)子(zi)磚回(hui)收(shou)部分顯(xian)熱(re)(re)后，經(jing)(jing)過(guo)小(xiao)煙(yan)道(dao)、廢氣(qi)(qi)交換(huan)開(kai)閉器、分煙(yan)道(dao)、總(zong)煙(yan)道(dao)、煙(yan)囪排(pai)(pai)入大(da)氣(qi)(qi)。這些廢氣(qi)(qi)進(jin)入煙(yan)囪前，其溫度約(yue)為270—300℃，經(jing)(jing)過(guo)煙(yan)道(dao)、煙(yan)囪排(pai)(pai)放的(de)廢氣(qi)(qi)中(zhong)含有的(de)大(da)量余(yu)熱(re)(re)得不到(dao)(dao)有效利(li)用(yong)(yong)(yong)，浪費了(le)可利(li)用(yong)(yong)(yong)的(de)廢熱(re)(re)能(neng)(neng)(neng)源。隨(sui)著國家(jia)節能(neng)(neng)(neng)減排(pai)(pai)政策(ce)和(he)監控力度的(de)加(jia)大(da)及企業提高競(jing)爭力需要，如將(jiang)這部分熱(re)(re)量用(yong)(yong)(yong)于余(yu)熱(re)(re)鍋爐等回(hui)收(shou)設備，不僅能(neng)(neng)(neng)合理(li)有效地開(kai)發(fa)和(he)利(li)用(yong)(yong)(yong)焦爐廢氣(qi)(qi)余(yu)熱(re)(re)資源，而且能(neng)(neng)(neng)解決焦化生產(chan)(chan)所需的(de)自用(yong)(yong)(yong)蒸(zheng)汽，實現企業的(de)節能(neng)(neng)(neng)降耗和(he)提高經(jing)(jing)濟效益(yi)。通過(guo)焦化煙(yan)氣(qi)(qi)余(yu)熱(re)(re)回(hui)收(shou)系統對(dui)這一部分煙(yan)氣(qi)(qi)余(yu)熱(re)(re)進(jin)行回(hui)收(shou)，并(bing)產(chan)(chan)生15噸/小(xiao)時、0.8MPa低(di)(di)壓飽和(he)蒸(zheng)汽供(gong)化產(chan)(chan)使(shi)用(yong)(yong)(yong)，大(da)大(da)降低(di)(di)了(le)生產(chan)(chan)成本，并(bing)起到(dao)(dao)節能(neng)(neng)(neng)環保效果。