第46卷第9期2023年9月煤矿安全环保与煤炭加工关于炼焦煤矿井天然焦及热变煤分选的探索煤炭与化工CoalandChemicalIndustryVol.46No.9Sep.2023梁增田（开滦能源化工股份范各庄矿业分公司，河北唐山063100）摘要：本文根据范各庄矿12煤层2227工作面受岩浆岩影响，导致煤层受热变质的范围和程度，对变质煤样品中的天然焦及热变煤浮沉数据及关键指标进行了化验，为降低变质煤对炼焦精煤的污染，通过煤层搭配调控入洗原煤煤质及洗煤过程提高一段分选比重，降低二段分选比重的方法，可以大幅降低变质煤对炼焦精煤的污染，稳定精煤各项指标，同时将天然焦选入中煤，增加了企业经济效益。本文对炼焦煤矿井受岩浆岩影响导致产生的变质煤通过洗选去除，降低对炼焦煤指标的影响具有参考价值，同时对天然焦及热变煤回收利用具有借鉴意义。关键词：岩浆岩；变质煤；天然焦；热变煤；洗选；配洗；比重中图分类号：TD94文献标识码：B文章编号：2095-5979（2023）09-0119-03ExplorationontheseparationofnaturalcokeandthermalcoalincokingcoalmineLiangZengtian(FangezhuangMiningBranchofKailuanEnergyandChemicalCo.,Ltd.,Tangshan063100,China)Abstract:Inthispaper,accordingtotheanalysisoftherangeanddegreeofcoalseamthermalmetamorphismcausedbymagmaticrockinNo.2227Faceof12coalseaminFangezhuangCoalMine,thefloatingandsinkingdataandkeyindexesofnaturalcokeandthermalcoalinmetamorphiccoalsamplesaretested.Inordertoreducethepollutionofmetamorphiccoaltocokingcleancoal,thecoalseamcollocationisusedtocontrolthequalityofrawcoalintowashingandthecoalwashingprocesstoimprovetheproportionoffirststageseparationandreducetheproportionofsecondstageseparation.Themethodcangreatlyreducethepollutionofmetamorphiccoaltocokingcleancoal,stabilizetheindexesofcleancoal,andatthesametime,naturalcokeisselectedintomediumcoal,whichincreasestheeconomicbenefitsofenterprises.Thispaperhasreferencevaluefortheremovalofmetamorphiccoalcausedbymagmaticrockincokingcoalminebywashingandreducingtheimpactoncokingcoalindex,andhasreferencesignificancefortherecoveryandutilizationofnaturalcokeandthermalcoal.Keywords:magmaticrock;metamorphiccoal;naturalcoke;thermalcoal;washing;washing;proportion断层影响越来越大，部分断层...
