湿法冶金置换过程的实时优化

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1、万方数据东北大学硕士学位论文AbstractReal—timeOptimizationofHydrometallurgyCementationProcessAbstractAstherapiddevelopmentofmetallurgicalindustry，makingfulluseoflow-gradenonferrousmetalresourceshasbecomemoreandmoreimportanttothes订ategyofsustainabledevelopmentinChina．Asoneofthetwoextractiont

2、echnologiesofsmelting，hydrometallurgyhastheadvantagesonhighpercentageofrecoveryofvaluedmetals，protectionoftheenvironmentandachievementofthecontinuityandautomationintheproductionprocess．Thereforehydrometallurgyismoresuitableforrecoveringlow-grademetalresources．Cementationproce

3、ssisanimportantprocedureofgoldhydrometallurgy．Thecontrolofcementationproductionprocessisstayinthelevelofoff-lineanalysis，experienceadjustmentsandmanualcontrolnowinChina．Theseresultinlowproductivity，highconsumptionandinstabilityofproductqualityinthevastmajorityofgoldhydrometal

4、lurgyenterprises，whichrestrictthedevelopmentofChina'sgoldhydrometallurgyindustry．Thisthesisaimsattheoptimizationofthequalityofproductsincementationprocessofhydrometallurgy．Basedondeeplyanalyzingtheproductionprocessandcharacteristicsofcementationproductionprocess，itisresearche

5、dcomprehensivelyandsystematicallyonthemodelingandoptimizationofthecementationprocessofhydrometallurgy．Themainresearchesaresummarizedasfollows：1．Throughanalyzingthebasicprincipleofcementationprocess，themajorfactorsaffectingthecementationprocesswerebrieflyanalyzedfirstly．Basedo

6、ntheprincipleofreactionkineticsandrelationshipofmaterialbalance，thedynamicfirstprinciplemodelofcementationprocesswasestablished．Bymodelsimulation，thedynamicandsteadystatefeaturesofthecementationprocesswererevealed．Thesecondaryvariablesofthedatamodelingwereidentified．Andthefou

7、ndationofdatamodelingwasestablished．Toaimatthedifficultyofobtainingaccuratelytheparametersofthedynamicfirstprinciplemodelandtheinfluencesofsomeassumptionsontheaccuracyofthemodel，thedatamodelsofcementationprocesswereestablishedusingtheKernelPartialLeastSquarealgorithm．Bysimula

8、tionexperiment，theefficiencyofthedatamodelingmethodWasverified．2．Aim