典型有色金属冶炼烟气余热回收利用研究

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1、eatRecoveryandReuseofNonferrousMetallurgyFlueGasAbstractNonferrousmetallurgyisahigh—energyindustry．Intheenergyconsumptionconstitute，theresidual—heatresourcemakesupabout60％ofthetotalenergyconsumption，andtheproportionoffluegaswasteheatupto80％intheresid

2、ual-heatresource．Therefore，reusingthewasteheatofnonferrousmetallurgyfluegashasimportantsignificanceforreducingtheenergyconsumptionofnonferrousmetallurgicalindustry．However,thereissuchgreatpotentialofwasteheatrecoveryandreuseofnonferrousmetallurgyflue

3、gasduetotheinherentcharacteristicsofnonferrousmetallurgyfluegasandcurrentlyfluegasrecoveryproblems．So，wetakecopperpyrometallurgy,aluminumsmeltingandzincpyrometallurgyastheexamples，andselecttypicalnon-ferrousmetalsmeltingequipmenttoresearchthewastehea

4、trecoveryandreuseofnonferrousmetallurgyfluegas．Inthepaper,weusetheexergyoffluegastoevaluatethevalueofwasteheatrecoveryandreuseoffluegas，theenergyleveloffluegastomeasurethequalityoffluegasresidual．heatresource．Thefluegasresidual—heatresourceofthetypic

5、alprocessofcopperpyrometallurgy,aluminumsmeltingandzincpyrometallurgyareanalyzedrespectivelyandarebasedonthequantity,qualityoffluegasandtherequirementsofcustomersandthegraderecoveryprincipleofenergylevelmatching．Atthesarfletime，wechoosetheappropriate

6、recoverymethodoffluegas，andconstructrespectivelythewholemodelofwasteheatrecoveryandreuseoffluegasindifferentprocess．Intheprocessofcopperpyrometallurgy,wetakecurrentrelativelyadvanced，themostwidelyusedflashsmeltingfurnace，converterandrotaryanodefurnac

7、eastheexamples，thewasteheatresourcesoftheprocessofmattesmelting，theprocessofmatteconvertingandtheprocessoffirerefiningofblistercopperincopperpyrometallurgyareanalyzedrespectively．Meanwhile，basedonthewayofusingwasteheatreasonablytosuitableheatconsumer

8、inproductionprocessandthegraderecoveryprincipleofenergylevelmatching,themodelofwasteheatrecoveryandreuseoffluegasincopperpyrometallurgyisconstructed，andtheresultanalysisofwasteheatrecoveryforusingthismodelintheannualoutputthreehundredthousandtonscopp