煤巷高冒区自然发火机理及防治技术冯会杰

2019－05－281980—2017。553000。、。X10901－3。、。TD752B1671－749X201905－0065－04Mechanismandpreventiontechnologyofspontaneouscombustioninhigh-fallingareaofcoalroadwayFENGHui-jieDawanCoalMineGuizhouShuichengMiningCo．Ltd．Liupanshui553000ChinaAbstractCoalspontaneouscombustionofhigh-fallingareaincoalroadwayisoneofthemainhiddendangersincoalminewhichseriouslythreatensthesafetyproductionunderthemine．Aimingatthecoalspontaneouscombustioninthehigh-fall-ingareaofcoalroadwaybasedontheoccurrencestateoffloatingcoaltheprocessofheattransferandmasstransferofre-mainedcoalinhigh-fallingareawasanalyzedandthemainlocationandcauseofcoalspontaneouscombustionwereob-tained．Basedonthecharacteristicsofwater-solublecompositecolloidfillingmaterialthekeycontroltechnologyofcoalspontaneouscombustionwasanalyzed．Combinedwiththeactualsituationofcoalspontaneouscombustioninthehigh-fallingareaofNo．X10901-3workingfaceacomprehensivepreventionandcontroltechnologyusingthreephasefoamcoolingandwater-solublecompoundcolloidpluggingwasproposed．Practiceshowsthatthistechnologycanquicklyandeffectivelypre-ventspontaneouscombustionoftheresidualcoalinhigh-fallingarea．Keywordshigh-fallingareaspontaneouscombustionheatandmasstransferthree-phasefoamwater-solublecompositecolloid0。56%1-2。、3。。。56514。、。。、3、1。。。12。f51。f=T1－T2Δy=ΔTΔy1T1—T2—Δy—。T1＞T2ΔT=T1－T2。1。。。3。6。2。f=ΔθΔy=－dθdy2f—θ—。。。。。7。。。4。、、、、8。。、、9。4．1662019、、、。1。111∶110s22∶112s35∶115s60s410∶120s90s4．2X10901－39#Ⅱ。340～390m6．3m5°。。。CO。、。①—。25mm、。。2②—1∶5。。3。239151、765。COCO4。4CO4CO1000×10－6CO。CO。5、X10901－3、。。1．J．200313376-78．2．M．2008．3．J．2006356758-777．4．J．2012441273-76．5．M．1995．6．J．200423672-73．7．J．200836358-61．8．J．201439679-81．9．———J．2004357檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪檪16-18．814。EBZ-120。1．J．20183312177-178．2．J．201322555-5570．3．J．201019542-4245．4．J．200928316-18．5．J．201827928-2835．6．J．201745972-78．7．、J．20184711212-214．8．J．20154610101-103107．862019