简介:摘要:通风空调制冷机组管道施工是安装空调工程施工中的一个关键步骤,制冷机组管道施工一旦出现难题,将会引发一系列安全隐患。因而,施工队伍要全面了解并了解安装简单方式,保证工业化生产时的稳定和稳定性,确保大家应用期内安全性,提升大家的生活质量和生活品质,进而进一步提高在我国智能控制系统组装技术实力,推动生产制造通风空调领域内的持续发展和兴盛。
简介:摘要:自开始以无人模式投入正式运用以来,为了更安全平稳各项指标满足运营标准,本文讲述了运行过程中OCC和BOCC自主切换设计和故障下切换场景。
简介:Sincetheexcessivecapacityinsteelmakingandcontinuouscastingatpresent,andthelimiteddevelopmentmarginofCCtechnologyandequipmentinscale,thefurtherdevelopmentmustbemadeinaprofoundanddetailizedway.ThispaperenumeratestheitemsofCCtechnologyandequipment,whichneedtobedetailizedfromseveralaspectssuchasrollarrangementdesign,equipmentdesignandproductionoperation,anditpointsoutthatdetailizationisthefuturedirectionofCCtechnologyandequipment.Theitemsinrollarrangementdesignincludeeliminatingperiodicmeniscusfluctuationbyadjustingspacebetweenrollsreasonably;takingspecialmeasurestoavoiddangerousregionsofcastingspeed,inordertoreducethecenterporosityandcenterlinecrackofslab;optimizingthemajorradiusandthelengthofouterarcofcasterbeforestraighteningpointtoavoiddangerousregionofcastingspeed.Theitemsinequipmentdesignincludechoosingasuitablestructureofsupportandguidingrollaccordingtotheconcreteconditionsofcaster;accordingtobulgingshapeofslab,thinkingmoreaboutrestrictionofshelltobulgingforce,discussingtheforceonrollers,optimizingsplitrolltosupportslab;safetyfactorshouldbeconsideredtogetherwithcalculationmethodofthebearingnominalstaticload.Theitemsinaspectsofcontinuouscastingoperationincludethedelicacydivisionandthefunction-positioningofoperationmodesforCCmachineduetotheconsiderationofdynamicsoftreduction;monitoringandcontrollingsystemofCCmachinemustbefurtherdetailizedtoimprovethestabilityofproductionoperationandslabquality.Inadditiontothethreeaspectsmentionedabove,thisarticlepointsoutmanyotheritemsalso,suchashomogenizationofsecondarycoolingofslab,qualitycontrolofsurfaceandinternalofslab,andsoon.Thisarticleemphasizes,somekeytechnologiesneedtoberesearchedalso,andalltheseresearcheswillneverstop.
简介:用漆酶/木聚糖酶体系(LXS)对OCC浆料进行改性,以改善浆料强度;并探讨了酶改性后浆料强度与酶改性产生的自由基之间的关系,以及浆料强度提高的原因。结果表明:LXS对OCC浆料改性,能明显提高浆料强度。当酶用量10IU/g时,与对照浆相比,抗张指数、环压指数和湿抗张指数分别提高了37.1%、23.2%和50.4%,其中湿抗张指数的提高更为显著。采用LXS改性时,产生的自由基浓度与纸浆强度成正比关系,即自由基浓度越大,纸浆强度越高。通过对LXS改性对纸浆自由基浓度、纤维结晶度、接触角和红外光谱影响的研究,从理论上解释了漆酶改性能提高浆料强度的原因。