粒级与煤视相对密度测值准确性关系研究

1、粒级与煤视相对密度测值准确性关系研究1,?X>t?>2,?X?t1,?1,?1,?U1(1?b?,?710054;2?S?E>?W?,?710065)?:-S?,?4?5?GB/T69491998?,?l?/?5?-g?d?10mm13mm?-S6mm10mm?+?x?X,?x?B,2?x?d?!?2?,?d6mm10mm?-?5?-g?10mm13mm?+?x?X,?I?:?;?;?d?0?-g?0?:TQ5339?I?5?1:B?Q?:10077677(2010)03001502Analysisontherelationshipofsizefractiontoappare

2、ntrelativedensityofcoalLONGYaping1,TIANWeipeng2,TIANXinjuan1,WANGJieling1,XIAOWenzhao1,XUEQin1(1.XianResearchInstitute,ChinaCoalResearchInstitute,Xian710054,China;2.NationalCoalQualitySuperviseandInspectionCenter,Xian710065,China)Abstract:Inordertostudytheinfluenceofsizefractiontoapparentrelativeden

3、sity,testofapparentrelativedensitywascarriedoutbyreducingsizefractionarrangeof10mm13mmcombinedwithnationalstandardGB/T69491998.Theresultsindicatedthatthesizefractionof6mm10mmcouldreplace10mm13mmtotestapparentrelativedensityinallowingrangeoferror.Keywords:sizefraction;apparentrelativedensity;coalqual

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13、tricmethodandcalculationofnetcalorificvalueS.2?-?-?d?0?d?W?5?M?A-?:-g?5?H?q,19993?6?d?W?5?M?A-?:-g?5?H?q,2003>?7?-?:?(1981),?,?-s?-?,?0?)?4,?d?-s?W-g?-?-?c?>?X,(?.?t:20100319)(-6?Y16?)?d?:?,?-G?X11/3?c?c?d?10mm13mm?6mm10mm?,?+-?t?,?t?w?3X,?t<t005,20,?-?4?-G?:?Q?)?d?10mm13mm?6mm10mm?,?F?w?F?q?v?,X,?3-G?:?Q?)?X1-G?:?x?t?w?F?w?/mmF?wt?w-G?1013?6102251311/3?c?1013?610141000?c?1013?610196129?1013?610256087?l?-6?-G?:?Q?)?d10mm13mm?6?x?w?,?x?F?q?v?,X,3?0?N?d-?2?x?,?Y-?X,?2?X?x?)-g-?v?,?-S?-?d6mm10mm?-?10mm13mm?+?x?,?-x-?W6mm10mm?l,-?:?-?v,-?-?/-=-