您好,欢迎访问三七文档
当前位置:首页 > 学术论文 > 其它学术论文 > 8m大采高综采工作面成套装备研发及应用王国法
4511Vol.45No.11201711CoalScienceandTechnologyNov.2017“8m”【】≥3.5m43%。“”1495%14、、6~8m。8m。、、、。《》“8m”。8.8m8.2m、8m。、、。8m12311.1000132.2735003.7190998m、、、“”、8.2m、、、8m108。5.7t150t。8mTD82A0253-2336201711-0001-08Researchanddevelopmentandapplicationofsetequipmentof8mlargeminingheightfully-mechanizedfaceWANGGuofa1LIXiyong2ZHANGChuanchang3RENHuaiwei11.CoalMining&DesigningDepartmentTiandiScience&TechnologyCo.Ltd.Beijing100013China2.YankuangGroupCo.Ltd.Jining273500China3.ShaanxiFutureEnergyandChemicalCo.Ltd.Yulin719099ChinaAbstractFortheproblemsofsurroundingrockcontrolfor8mlargeminingheightstabilityandreliabilityofhydraulicsupportandlarge2017-09-30DOI10.13199/j.cnki.cst.2017.11.0019732014CB046302U16102511960—。Tel010-84262016E-mailwangguofa@tdkcsj.com.8mJ.201745111-8.WANGGuofaLIXiyongZHANGChuanchangetal.Researchanddevelopmentandapplicationofsetequipmentof8mlargeminingheightfully-mechanizedfaceJ.CoalScienceandTechnology201745111-8.120171145coalquantityadaptivecontinuousoperationrelevantresearchwascarriedout.Firstcouplingmechanicalmodelofhydraulicsupportandsurroundingrockwasestablishedthereasonableworkingresistanceofultralargeheighthydraulicsupportwasdeterminedbytwo-factorcontrolmethodandthree-levelcoactionsfaceguardmechanismandthedouble-telescopicpropwasdesignedwhichcouldcontrolribspal-lingandroofpressureefficientlyimprovingthereliabilityofthe8.2mminingheighthydraulicsupportbyusinghigh-tensilestructuralsteelandnewprocessofintelligentweldingbasedonthenon-polesoftstartsupersizechainandtransmissionsystemandthecontinuouscrushingdeviceofelectricdirectdrivetoothrollerthepaperdevelopedultralargecoalquantityself-adaptivescraperconveyorFinallybycomprehensiveusingthemultiplestudysuchascoalminingmachinewalktransmissiontechnologyfoldingbeltconveyor.advancedhydrau-licsupportandsoonthefirstsetof8mminingheightcompletesetsofequipmentwasdevelopedandtheindustrialtestwascarriedoutinNo.108workingfaceinJinjitanCoalMineofYankuangGroup.Thetestsindicatedthatthecompletesetofequipmentcouldcontrolroofandcoalwalleffectivelywhichhadgoodstabilityandreliabilitythecoalflowwassmoothandnobiglumpsofcoalwereblocked.Duringthetesttheworkingfacewasupto57000tonsandthemonthlyoutputreached1.5milliontons.Keywordsfully-mechanizedof8mlargeminingheightequipmentsetforgeneralexploitationhydraulicsupportofultralargeminingheightheavyscraperconveyor0、、、。6m6m。20056m1-3。200947m。20117m5、6。20148m。、、、、7-9、、8m。“”、8.2m、、、8.2m8m。18m8m、、、1“”“”110。1Fig.1Rotaryinstabilityandslideinstabilityofroof2、11。3、122。28m2017112Fig.2Pressurecoalandlargeblockcoalblockageofworkingfaceconveyer、、、。28m8m、13。8m。2.11。“+”3。2。2“-”。2“-”144、、cb2<6F1δ21-3aM()+F3a23M-a2M2aM-1()[]σt1cbF1δF3aσtM。3+-Fig.3Cantileverbeam+masonrybeammodelandhydraulicsupport-surroundingrockcouplingdynamicsmodel4-Fig.4Ribspallingoftensilecracking-slidingmechanicalmodelmechanicsanalysisF2—F4—Fd—Fmd—F3h—Fmm—mg—、、F4=F3h+Fd-Fzf1cosα-sinα-mgsinαcosα2f1α。3201711452.22.12“”、。。5。5Fig.5Displacementandsupportstrengthcurvesofcoalwallondifferentminingheight57m7.5m。7m。1.65~1.74MPa21000kN。8m。“-”。8.2m201kN≥4m。8.2m1。8.2mZY21000/38/82D。2.38.2m18.2m64.0m。1Table1Comparisonoftheparametersforultralargeminingheightschemes/m8.28.28.5/m2.052.252.40/mm530560600/kN210002300026000/MPa1.751.701.65/t7888996Fig.6Three-levelcoactionsfaceguardmechanismofultralargeheighthydraulicsupport2。15。74000L/min20%。7Fig.7Impactcolumnwithlargecylinderdiameterandenergydissipate2.48.2mQ890、Q115048m2017111615%。89、。8Fig.8Robotautomaticwelding9Fig.9Multi-layermulti-channelweldingprocess38m、。SGZ1400/3×16004800kW6000t/h、、。3.1SGZ1400/3×1600、、17。。10、、。10Fig.10Automaticretractableconveyertail3.2。56mm×187mm、60mm×181/197mm11、。11Fig.11Oversizechaindrivesystem3.312200kW8.6m/s。12Fig.12Largeblockcoalcontinuouscrushingdevice52017114548m、、。4.18m、。34137LS8148.0m2925kW。13347LS7/8Fig.13Transmissionsystemof3axialtypeand4axialtype7LS7/8installation4.215、。147LS8Fig.147LS8ultralargeheightminingcuttermachine4.38m4m15Fig.15Floortypefoldingfuselageofretractablebeltconveyor、、218-20。12-1416。。16Fig.16Advancesupportsystemoflarge-sectiongateroadway55.18m8m12-2108。2。6.0~8.4m5538m300m。20167120161013、。5.25.7t150t3。201784449m6.16t。ZY21000/38/82D13892kN21000kN。68m201711。0.8m。8.2m。0.5h1.5h1.55400t。2108Table2CorollaryequipmentofNo.108ultralargeheightminingface7LS81ZY21000/38/82D142ZYG21000/38/82DA/B2ZYT21000/28/53D6ZQL2×6400/28/531ZCZ26120/25/453SGZ1400/48001SZZ1600/7001PCM7001SDJ180/450/7×63013108201610—12Table3ProductionstatisticsfromOctobertoDecember2016ofNo.108workingface101112/t141.65153.76168.84154.75464.25/m496.00523.00536.00518.331555.0068m7m8m1“”、8m。2、、。3、、8m108。48m6~8m。、。References1.J.20131811-4.NINGYu.Currentstatusandthinkingoffull-mechanizedminingtechnologyinChinesecoalminesJ.CoalMiningTechnology20131811-4.2.J.20091411-4.WANGGuofa.ResearchonminingtechnologywithhighminingheightanddevelopmentofpoweredsupportforhighminingheightJ.CoalMiningTechnology20091411-4.3.J.201547101-48.WANGGuofaWUXingliPANGYihui.Keytechnologyofsafeef-ficientandsustainabledevelopmentincoalminegroupwith10MtcapacityJ.CoalEngineering20
本文标题:8m大采高综采工作面成套装备研发及应用王国法
链接地址:https://www.777doc.com/doc-6490036 .html