简介:针对原料场控制系统的缺陷,将堆取料机与皮带机的通信、现场信号改为无线和总线系统后,故障率和误信号大大降低,取得了良好效果。
简介:PresentlytheironandsteelmakersarecompelledtoincorporaterationalinitiativestoreduceitsprocessingCO2totalemissions.Inthemediumandlongterm,theinjectionofsmallparticlesofbiocharthroughthetuyereesinblastfurnaces,herecalledBio-PCI,offersattractivefeaturesfromtheenvironmentalandmetallurgicalpointofview,asitisarenewablecarbonneutralreductantandpresentslesserimpuritiesthancoke.However,itsutilizationinironplantsisbeenhinderedbythetraditionallargeavailabilityofrelativelyeconomicalcoalandcoke.Asthecostoftheprincipalprocessinginputsincreases(coal,cokeandironore)thegapbetweenfossilandrenewablereductantsdecreases.Inthissense,ourcontributionaimstocomplementthemetallurgicalinquiryoftechnicalfeasibilitywithastrategicidentificationoftheareaswithbestprospectstobenefitsfromtheincorporationofBio-PCI:wherecanitflourish?.Ouranalysisleadstoindicatethatemergingcountriesinspecific,China,BrazilandIndia,areinaprimepositiontoincorporatetheBio-PCIastheysimultaneouslycomplywithagrowingironindustrybasedonblastfurnaces,andpossessanimportantpotentialforenergygenerationfromforestryresidues.
简介:从理论介绍和实际应用两方面讨论了PROFIBUS-DP网的工作原理,通过PLC实现对原料厂生产系统的监控和管理。
简介:作为自动化领域的热点之一,现场总线己成为自动化系统与分散的现场设备间信息交换的主要技术。本文结合400万吨铁选厂建设实际出发,将PROFIBUS-DP现场总线技术与电气设备技术相结合,组建了远程集中控制与就地控制相结合的控制网络,实现不同控制系统之间的信息共享效果显著。