【英文标准名称】:StandardTestMethodforGrindabilityofCoalbytheHardgrove-MachineMethod
【原文标准名称】:粉碎机法测定煤炭易磨性的标准试验方法
【标准号】:ASTMD409/D409M-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D05.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:粉碎易磨性指数(HGI);粉碎^DOI:^INDEXTERMS:Coalproducts;可磨性;粉碎机方法;过滤分析-煤炭/焦炭
【英文主题词】:grindability;Hardgrove-GrindabilityIndex(HGI);pulverization;Coalproducts;Grindability;Hardgrovemachinemethod;Sieveanalysis--coal/coke
【摘要】:Thistestmethoddevelopsameasurementofgrindingorpulverizingcharacteristicsthatcanbeusedtoevaluatetheyield,orenergyinput,orboth,requiredinagrindingorpulverizingprocess.1.1Thistestmethodcoversthedeterminationoftherelativegrindabilityoreaseofpulverizationofcoalsincomparisonwithcoalschosenasstandards.Apreparedandsizedsamplereceivesadefiniteamountofgrindingenergyinaminiaturepulverizer,andthesizeconsistofthepulverizedproductisdeterminedbysieving.Theresultantsizeconsistisusedtoproduceanindexrelativetotheeaseofgrinding(HardgroveGrindabilityIndex(HGI)).1.1.1Somecoals,suchassomehigh-volatilebituminous,subbituminous,andlignitecoals,canundergophysicalchangeasthenaturalorseammoistureisreleasedduringhandlingandpreparation.Thischangeisoftensufficienttoalterthegrindabilitycharacteristicsthatwillbereportedwhentestedinthelaboratoryandcouldproducedifferentindicesdependentontheconditionsofdryingandthemoisturelevelofthe1.18-mmby600-x03BC;m(No.16x00D7;No.30)(seeTestMethodD4749)materialsusedforthetest.Therefore,therepeatabilityandreproducibilitycitedinthistestmethodmaynotapplyforthesehigh-volatilebituminous,subbituminous,andlignitecoals.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Itisrecognizedthatthetermweightisconsideredequivalenttomassasusedinthistestmethod.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:
【国际标准分类号】:73_040
【页数】:17P.;A4
【正文语种】: