plc在选煤厂中的应用

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1、山东大学硕士学位论文devicethereliabilityandautomationdegree．AtthesametimetheuseofSiemensconfigurationsoftware，WinCCdesignofPCcontrolsystem，realizedatareal—timerecordingandmonitoring，andhastherecordinquiry，alarm，redundancyandnetworkreleasefunction．ThemaincontentSareasfollows：Firstly，t

2、hispaperintroducestheChinesecoalindustry’Sbasicsituation，thecurrentmainexistingcoalintothewashrateisinsufficient，industrialcoalcontainingash，sulfurcontentiShigh，andtheproblemsuchasdifferenceofcoalpreparationequipmentlevel：elaboratedintheapplicationofcentralizedcontrolsystem

3、incoalpreparationplantofnecessity，describesthePLCcontrolsystemforcoalpreparationplanteach1inkofproductionbroughtaboutasignificantchange：pointsoutthesourceofthesubjectandresearchofJiningmininggroupcanalcoalpreparationplantprojectgeneralsituation，introducedthecoalpreparationp

4、lantofthenonpressurethreeproductsheavymediumcoalpreparationprocess．Secondly，thepaperi1lustratesthecontrolsystemofcoalpreparationplantdesignofthemaintrainofthoughtandcontent，detailsabouttheprojecttoachievetheoveral1goalandwil1meettherequirementsforeachsubsystem，thedelineatio

5、nofthescopeoftheproject，introducedthecomputersystemnetworkstructureandmonitoringsystemofthefunctionalrequirements，1isttheoverallsystemcontrolframework．Onceagain，thedetailedexplanationofthecentralizedcontrolsystemofcoalpreparationplanthardwareresearchanddesign，i1lustratedbyt

6、heSiemenscompanyS7—300seriesPLCseveralmainfunctionmodulesandrelatedprinCipies，makeeachsubsystemoftheI／O1ist，andrespectirelyintroducedtheirsystemPLCdetailedconfigurationandaportionofthedevicecontrolprinciplegraphandtheexternalwiringdiagram，andillustratesthecontrolsystemofcoa

7、l4山东大学硕士学位论文preparationplantbymonitoringthetemperature，liquid1evel，pressureandotherparametersrelatedcontent．Then．totalkaboutwithSiemenscompanyS7一一300seriesPLCmatchingSTEP7programmingsoftware，thesoftwarecanreliably，accuratelycontrotoperation，real—timemonitoringandrecordingof

8、coalconveyingprocessoperationcondition，andbeabletopresenta11kindsofemergencyevents