煤礦科技英語——8. COAL CUTTING MACHINES SHEARER
8-1MajorComponentsofShearers[1]Althoughtherearemanymodels,theshearerhasseveralcommonbasiccomponents.Adouble-endedranging-drumshearer[2],forexample,consistsoffourmajorcomponents:electricmotors[3],gearh...
煤礦科技英語——9. POWERED SUPPORTS
9-1IntroductionModernlongwallminingemploysself-advancinghydraulicpoweredsupports[1](whichwillsimplybecalledpoweredsupportsinthisbook)atthefacearea.Thesupportsnotonlyholduptheroof,pushthefacechainconve...
煤礦科技英語——10. ARMORED FACE CONVEYOR
1.IntroductionInlongwallcoalmining,thecoalcutdownbytheshearerortheplowistransportedbythearmoredfacechainconveyor(AFC),whichislaidacrossthefullfacewidth,totheheadentryT-junction,whereitistransferredtot...
煤礦科技英語——11. VENTILATION
11-1TheMainFunctionsofVentilation[1]Ventilationisoneofthemostimportantaspectsoflongwallmining.Themainfunctionsofventilationinlongwallminingis:A.Supplyoffreshairattolerableheatandhumiditylevels[2]forth...
煤礦科技英語——12. METHANE CONTRAL
1.IntroductionInlongwallcoalmining,thecoalcutdownbytheshearerortheplowistransportedbythearmoredfacechainconveyor(AFC),whichislaidacrossthefullfacewidth,totheheadentryT-junction,whereitistransferredtot...
煤礦科技英語——13. Dust Control [1]
13-1IntroductionThefinecoalandrockparticlesproducedinundergroundminingarecalledthedust.Thesizesoftheparticlesaredenotedbytheirdiameterinmicrometers（μm）.Thedustthatissuspendedinandmovedwiththeairinvent...
煤礦科技英語——14. MINE FIRES [1]
14-1FactorsCausingMineFiresCoalasafossilfuelcancatchfirebybothnaturalandman-madecauses.Somecausesofcoalfirescanbefoundin:A.Spontaneouscombustion[2]B.ForestfiresclosetocoalseamsC.Travelingfirefromonese...
煤礦科技英語——15. ENVIRONMENTAL ISSUES [1]
Becausesignificantvolumesofearthmustbedisplacedtominecoal,coalminesandtheresultingrockwaste[2]canharmtheenvironment.Furthermore,burningcoalreleasesenvironmentallyharmfulchemicalcompoundsintotheair.15-...
煤礦科技英語——16. MINING SUBSIDENCE
16-1IntroductionMiningsubsidence[1],likeanearthquake[2],isageologichazardthatcanstrikewithlittleornowarningandcanresultinverycostlydamage[3].However,unlikeanearthquake,miningsubsidencegenerallyaffects...
煤礦科技英語——17. SUB-LEVEL CAVING [1]
17－1TheSupportsforSub-LevelCavingCharacteristicsofthesupportsforsub-levelcaving:Shieldorchockshieldsupportsaredesignedforuseintheminingofthickseamsbythesub-levelcavinglongwallmethod.Thesupportsarealso...
澳大利亞煤礦安全培訓——永良公司專業(yè)培訓
項目簡介：隨著國家改革開放步伐的加快，我國的各行各業(yè)都處在一個經濟騰飛的階段，在經濟發(fā)展的同時也暴露出很多問題。煤礦行業(yè)的安全問題就是比較突出的一個方面。目前我國煤炭行業(yè)存在很多安全問題，百萬噸煤炭的傷亡事故率居高不下，給國家財產和人民生命安全造成嚴重損失。澳大利亞的煤礦企業(yè)有著優(yōu)良的安全紀錄和經驗，連續(xù)四年百萬噸煤的傷亡事故率為零，如此優(yōu)良的安全紀錄是值得我們關注的。結合澳大利亞煤礦公司的先進管...
