爐外脫硫過(guò)程控制系統(tǒng)設(shè)計(jì)及終點(diǎn)含硫量的預(yù)報(bào)研究.pdf

1、東北大學(xué)碩士學(xué)位論文爐外脫硫過(guò)程控制系統(tǒng)設(shè)計(jì)及終點(diǎn)含硫量的預(yù)報(bào)研究姓名：王素杰申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：控制科學(xué)工程指導(dǎo)教師：王福利2001.2.1東北大學(xué)碩士研究生畢業(yè)論文摘要AbstractAsanimportanttacheoftheworldadvancedsteel—makingroutine，thehotdesulphurizitionprocessCaneffectivelyreducethesulphurcontentin

2、thehotmetalbeforeitsenteringtheconventorItplaysanimportantroleinimprovingthesteel’Squalityreducingtheconsumeofenergyandrawmaterialandenhancingtheenterprise’ScompetitioninmarketBecausethehotdesulphurizitionprocessisveryco

3、mplexanddi筒cultformanuaIoperationitiSnecessarytointroducecomputercontr01ThefollowingtasksarecarriedoutwiththebackgroundofthehotdesulphurizitionprojectinChengdeIron&steelCorporationThethesisintroducestheoriginanddevelopme

4、ntofthehotmetaldesulphurizition，analysestheactualityofautomationoftheprocessDistributioncontrolsystemwasadoptedtodeveloptheprocesscontrolsystembasedonthedesignprinciplesofadvancing，reliabilityandpracticabilityItwasshowni

5、nthepracticethatthesystemsatisfiedthetechnicalneedToovercomethebiglaginmeasuringthefinalsulphurcontent，weappliedthemodemsoftsensortechnologytohotmetaldesulphurizitonThesoftsensortechnologyorganicallycombinesthetechnicalm

6、echanismandthecontroltheorytogetherItcancontinuouslycomputetheparametersthatcarmotbemeasuredoraredimculttomeasureInacertainextenditcallreplacetheon—lineanalyzerandaccomplishthereal—timemeasuringaswellasatItomationoftheop

7、erativeequipmentThethesisoutlinesthebasicmethodsofthesoftsensorandfoCUSonthesoftsensormodelingusingartificialneuralnetworkBasedontheanalysisofthehotmetaldesulphurizitionmechanicmodelwechoosedthesecondaryvariableswhichaff

8、ectthefinalsulphurcontentAccordingtothespotdata，wedevelopedaBP—network—basedmodeltopredictthefinalsulphurcontentThesimulationresultsshowthevalidityofthemethodsKeyWords：Hotmetaldesulphurizition，DCS，SoftsensorNeuralnetwork