1摘要工业作为我国第二支柱产业，在近十几年来发展非常迅速，虽然带了了可观的经济效益，但在工业生产中所产生的大量粉尘气体对大气的污染现象也不容忽视。为减少工业粉尘对环境的污染，世界各国制定了严格的环境保护要求。为了减少工业中粉尘的排放，除尘器的研发改良，以及燃煤的使用等等都在不断更改以符合粉尘排放标准。而目前最先进的除尘设备无机膜除尘器具备除尘效率高，稳定性好，结构紧凑易于维护等优点，且无机膜对于粉尘吸附效率高，抗腐蚀能力优秀，耐高温，因此能更有效应用于高温烟气的除尘。本文根据PLC技术在除尘方面的应用，来优化设计无机膜除尘器除尘控制系统，对其气力输送系统进行完善，实现粉尘的自动清除与输送。本系统采用西门子S7-200可编程逻辑控制器，通过STEP7-Micro/WIN32编程软件编程，来设计除尘设备粉尘清除与输送一体化的控制系统。经过对系统的实际调试，使预期目标得以实现。关键词：无机膜除尘；可编程逻辑控制器（PLC）；STEP7-Micro/WIN32；气力输送23AbstartIndustryasthesecondpillarindustryinchina,Inthelasttenyearstodevelopveryquickly,Althoughwithconsiderableeconomicbenefits,Butintheindustrialproductionofalargenumberofdustgaspollutionphenomenoncannotbeignored.Inordertoreducethepollutiontotheenvironmentofindustrialdust,Countriesaroundtheworldhavedevelopedstrictenvironmentalprotectionrequirements.Inordertoreducetheemissionofdustinindustry,Developmentandimprovementofdustcollector,Andtheuseofcoalandsoonareconstantlychanginginordertomeetthedustemissionstandards.Andatpresentthemostadvanceddustremovalequipmentinorganicmembranedustcollectorwithhighdustremovalefficiency,Goodstability,Compactstructureeasytomaintainandsoon,Andtheinorganicmembranehashighadsorptionefficiencyfordust,Excellentcorrosionresistance,Hightemperatureresistance,soitcanbemoreeffectivelyusedinthedustremovalofhightemperaturefluegas.BasedontheapplicationofPLCtechnologyindustremoval,Tooptimizethedesignofthedustcontrolsystemofinorganicmembranefilter,Perfectthepneumaticconveyingsystem,Automaticcleaningandconveyingofdust.ThissystemusestheSIEMENSS7-200programmablelogiccontroller,ThroughtheSTEP7-Micro/WINV4.0programmingsoftwareprogramming,Integratedcontrolsystemfordustremovalandtransportationofdustremovalequipment.Aftertheactualdebuggingofthesystem,Toachievethedesiredobjectives.Keywords:inorganicmembranedustremoval;programmablelogiccontroller(PLC);STEP7-Micro/WINV4.0;pneumaticconveying4目录摘要..........................................................................1Abstart.......................................................................2第一章绪论...................................................................41.1研究的目的和意义......................................................41.2研究现状..............................................................51.2.1除尘技术研究与发展现状..........................................51.2.2PLC发展现状及趋势..............................................51.3研究的主要内容........................................................61.3.1除尘设备简介....................................................61.3.2气力输送系统的完善..............................................61.3.4控制器的选择....................................................71.3.5确定除尘系统的控制原理..........................................8第二章除尘设备控制系统的硬件构成............................................102.1可编程控制器的特点...................................................102.2可编程控制器的构成...................................
