Suitable retention and recovery technology of floor coal at ends of fully mechanized face with great mining heights.pdfVIP
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Suitable retention and recovery technology of floor coal at ends of fully mechanized face with great mining heights.pdf
MiningScienceandTechnology(China)21(2011)281-285
B 7 |。 t ■
A R T IC L E IN F O A B S T R A C T
Articlehistory: Gatewaysatfacesofgreatminingheightsaremostlydrivenalongtheroofofcoalseams.Forgateway
Received2September2010 heightrestrictions。a1—3mfloorcoalisretained.1eavingatriangularfloorcoaIatthefaceends。causing
Received inrevisedform alOSSofcoa1.In ordertoimprovecoalrecovervratesand toensureefficiencyofequipmentatcoal
22Octobet2010
miningfaces.weinvestigatedsuitableretentionmethodsandrecoverytechnologyoffloorcoglatface
Accepted28November2010
ends.Theupperfloorcoalcandirectlyberecoveredbyashearerwithfloordinting.Thelowerfloorcoaljs
recoveredbyshearerwithfloordintingafteradvancedfloordintingandretainingastepforprotecting
Keywords:
coalsidesin ahaulagegateway.Fieldpracticeshowsthatthismethodacnimprovethecoalrecovery
Greatminingheights
ratesatfullymechanizedworkingfaceswithgreatminingheights.
Floorcoalatfaceends
FIoorcoalrecovery Copyright@ 2011.ChinaUniversityofMining&Technoloyg.AIlrightsreserved.
Floordinting
Stepforprotectingcoalside
ofrkeepingthemachinesworkingsafelyandefficientlyandalsoofr
therecoveryofthefloorcoa1.
ComparedtofulIvmechanizedtopcoalcaving.fullymechanized
minesw ithgreatminingheightshaveadvantagesofhighercoal
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