Mining, tshwj xeeb tshaj yog cov mining hauv av, yog ib qho kev lag luam nyuaj tshaj plaws thiab muaj kev phom sij hauv ntiaj teb. Cov neeg ua haujlwm ntsib ntau yam kev pheej hmoo, los ntawm qhov kub thiab txias thiab cov av noo siab mus rau cov pa roj carbon monoxide, kev siv tshuab, thiab kev hem thawj ntawm hluav taws. Ua kom muaj kev nyab xeeb thiab ua haujlwm tau zoo ntawm cov khoom siv mining hauv ib puag ncig yuav tsum muaj cov khoom muaj zog thiab txhim khu kev qha, thiab ib qho tseem ceeb tshaj plaws hauv kev ua haujlwm tsuas yogtxoj kab kev mining.
Mining cables tshwj xeeb yog tsim los tiv thaiv cov kev xav tau nyob hauv av. Lawv yuav tsum tsis yog tsuas yog xa lub zog xwb, tab sis kuj ua kom muaj kev sib txuas lus, kev xa cov ntaub ntawv, thiab kev ua haujlwm zoo ntawm cov tshuab kev nyab xeeb. Xaiv txoj cai cable rau hauv av mining yog ib qho tseem ceeb rau kev tiv thaiv tus nqi poob qis, ua kom cov neeg ua haujlwm muaj kev nyab xeeb, thiab tswj xyuas tag nrho cov txiaj ntsig ntawm kev ua haujlwm mining.
1. Nkag siab txog Cov Kev Sib Tw ntawm Kev Ua Dej Num Mining Ib puag ncig
Underground mining ib puag ncig nthuav tawm cov kev sib tw tshwj xeeb uas tsis pom nyob hauv lwm qhov chaw lag luam. Cov kev sib tw no suav nrog:
Kub siab heev: Cov mines hauv av tuaj yeem muaj qhov kub thiab txias los ntawm qis qis mus rau tshaj 50 degree (122 degree F), nyob ntawm qhov tob thiab qhov chaw nyob. Qhov kub hloov pauv tuaj yeem cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hluav taws xob thiab cov cables.
High humidity thiab noo noo: Cov mines hauv av feem ntau ntub lossis ntub ib puag ncig. Cov dej noo tuaj yeem nkag mus rau hauv cov cables, ua rau muaj peev xwm luv luv, corrosion, lossis txo cov rwb thaiv tsev.
Lub cev hnav thiab tsim kua muag: Mining cables yuav tsum tiv taus kev ntxhov siab tas li. Lawv tuaj yeem raug rau cov tshuab hnyav, cov npoo ntse, abrasions, thiab cuam tshuam los ntawm cov khoom txav. Nyob rau tib lub sijhawm, cables tuaj yeem hnav los ntawm kev khoov, twist, lossis crushing.
Tshuaj lom neeg: Cables siv nyob rau hauv mines feem ntau raug rau cov roj, tshuaj, thiab lwm yam corrosive tshuaj, uas yuav degrade cov khoom thiab shorten lub lifespan ntawm cables.
Hluav Taws Xob: Hluav taws xob hluav taws xob yog ib qho kev pheej hmoo tseem ceeb hauv qhov chaw mining, tshwj xeeb tshaj yog muaj cov pa hluav taws xob zoo li methane. Cov kab hluav taws xob tiv thaiv hluav taws yog qhov tseem ceeb los tswj kev ruaj ntseg thiab cov khoom siv hluav taws xob thaum muaj hluav taws kub.
Kev vibration thiab lub cev txav: Cov kab hluav taws xob yuav tsum tau hloov pauv thiab muaj peev xwm txav tau nrog cov khoom siv mining, uas tej zaum yuav raug kev vibrations hnyav los yog kev txav mus tas li nyob rau hauv qhov tsis sib xws.
Xav txog cov kev cov nyom no, nws yog qhov tseeb tias tsis yog txhua lub cables tsim nyog rau kev ua haujlwm hauv av. Txoj cai cable yuav tsum tau tsim tshwj xeeb los tiv thaiv cov mob hnyav no thaum tswj xyuas hluav taws xob ncaj ncees.
2. Cov ntsiab lus tseem ceeb uas yuav tsum tau xav txog thaum xaiv Mining Cables rau kev ua haujlwm hauv av
Thaum xaiv cov mining cables rau ib puag ncig hauv av, ntau yam tseem ceeb yuav tsum tau xav txog:
2.1 Insulation thiab Sheath Material
Cov khoom siv rwb thaiv tsev yog ib qho tseem ceeb tshaj plaws ntawm cov kab hluav taws xob siv nyob rau hauv underground mining. Lub rwb thaiv tsev yuav tsum tau tiv thaiv cov hlau los ntawm ya raws, tshuaj lom neeg, thiab kub heev. Qee cov khoom siv rwb thaiv tsev feem ntau siv xws li:
Rwb thaiv tsev: Roj hmab cables yog qhov hloov tau yooj yim thiab ruaj khov. Lawv muaj kev tiv thaiv zoo heev rau kev puas tsuaj, tshuaj lom neeg, thiab qhov kub thiab txias, ua rau lawv muaj kev xaiv nrov rau kev ua haujlwm hauv av. Rubber-insulated cables kuj tiv taus dej, roj, thiab acids, uas feem ntau muaj nyob rau hauv ib puag ncig mining.
Hla-Txuas Polyethylene (XLPE): XLPE yog cov thermoset polymer uas muaj cov khoom siv zoo tshaj plaws thiab ua haujlwm rau cov tshuaj, qhov kub thiab txias, thiab noo noo. Nws yog feem ntau siv hauv cov hluav taws xob cables rau kev ua haujlwm tsuas yog vim nws muaj peev xwm tswj tau nws cov khoom nyob rau hauv qhov kub thiab txias.
Polyvinyl Chloride (PVC): PVC yog cov khoom siv rwb thaiv tsev uas muaj kev tiv thaiv zoo rau cov dej noo thiab tshuaj lom neeg, tab sis nws yuav tsis haum rau ib puag ncig uas muaj qhov kub thiab txias heev. PVC feem ntau yog siv nyob rau hauv qis-voltage thiab kev sib txuas lus cables.
Tsawg Haus luam yeeb Zero Halogen (LSZH): LSZH cables yog tsim los txo qis kev tso pa tawm ntawm cov pa taws thiab cov pa phem thaum muaj hluav taws kub, uas yog qhov tseem ceeb hauv cov mines hauv av uas tsis muaj qhov cua. Cov kab hluav taws xob no feem ntau siv hauv kev sib txuas lus, teeb pom kev zoo thaum muaj xwm ceev, thiab kev ruaj ntseg.
2.2 Kub Resistance
Qhov kub hauv cov mines hauv av tuaj yeem sib txawv heev, thiab cov cables yuav tsum muaj peev xwm tiv taus cov kev kub ntxhov no yam tsis muaj kev puas tsuaj. Nws yog ib qho tseem ceeb uas yuav tau xaiv cov kab hluav taws xob uas tau raug ntsuas rau qhov ntsuas kub uas tsim nyog rau lub mine.
Tsawg-kub Resistance: Nyob rau hauv ib puag ncig txias, cables yuav tsum muaj peev xwm nyob twj ywm thiab tsis ua nkig, uas tuaj yeem ua rau tawg.
Kub-kub Resistance: Cables siv nyob rau hauv cov cheeb tsam uas muaj qhov kub thiab txias, xws li nyob ze ntawm cov tshuab lossis cov chaw ua haujlwm, yuav tsum muaj peev xwm tiv taus cua sov yam tsis muaj melting lossis poob hluav taws xob rwb thaiv tsev. Hluav taws kub-resistant los yog nplaim hluav taws-retardant cables feem ntau siv nyob rau hauv cov mob no.
2.3 Mechanical Strength thiab Durability
Underground mining cables raug rau cov neeg kho tshuab tsis tu ncua, suav nrog rub, khoov, thiab puas. Lawv yuav tsum muaj peev xwm tiv taus cov kev ntxhov siab no yam tsis muaj kev tawg.
Armored Cables: Rau kev tiv thaiv ntxiv tiv thaiv kev puas tsuaj, armored cables feem ntau siv. Cov cables no tau nruab nrog steel hlau armor uas tiv thaiv cov neeg xyuas sab hauv los ntawm kev cuam tshuam, puas, thiab crushing. Hom kab no zoo tagnrho rau ib puag ncig uas yuav muaj kev puas tsuaj rau lub cev, xws li hauv tunneling lossis thaj chaw uas muaj cov khoom hnyav.
Yooj yim: Cov kab hluav taws xob hauv kev ua haujlwm mining feem ntau yuav tsum tau hloov pauv kom tiv thaiv kev txav ntawm cov tshuab. Rubber-insulated cables thiab hloov tau yooj yim PVC cables feem ntau siv rau hauv cov xwm txheej no vim tias lawv tuaj yeem daws qhov kev ntxhov siab ntawm kev khoov tas li yam tsis muaj kev puas tsuaj.
2.4 Dej thiab dej tsis kam
Hauv kev ua haujlwm hauv av hauv av, dej yog ib qho kev txhawj xeeb. Cov dej noo los ntawm cov dej hauv av, cov dej xau, los yog condensation tuaj yeem ua rau cov kab hluav taws xob puas tsuaj, tshwj xeeb tshaj yog cov uas tsis zoo. Mining cables siv nyob rau hauv xws li ib puag ncig yuav tsum tau tsim los tiv thaiv cov dej ingress, uas yuav ua rau luv luv Circuit Court, corrosion, los yog ua tiav cable tsis ua hauj lwm.
Waterproofing: Ntau cov kab hluav taws xob mining muaj cov tsho tsis muaj dej tsis zoo lossis cov txheej txheem los tiv thaiv cov dej nkag mus rau hauv lub cable. Cables uas ntsuas raws lisubmersiblelos yogdej-resistantNws yog ib qho tseem ceeb nyob rau hauv cov cheeb tsam uas lawv yuav raug dej nyab los yog high humidity.
Moisture-Resistant rwb thaiv tsev: Qee cov cables tau tsim tshwj xeeb nrog cov rwb thaiv tsev ya raws los tiv thaiv qhov degradation ntawm cov khoom rwb thaiv tsev nyob rau lub sijhawm.
2.5 Nplaim-Resistance thiab hluav taws kev nyab xeeb
Vim tias muaj kev pheej hmoo siab ntawm hluav taws xob hluav taws xob hauv cov mines hauv av, cov nplaim hluav taws xob yog qhov tseem ceeb rau kev tiv thaiv cov neeg ua haujlwm thiab cov khoom siv. Cov cables no yog tsim los tswj cov hluav taws xob conductivity thiab kev ncaj ncees ntawm cov qauv txawm tias thaum muaj hluav taws kub.
Hluav taws kub-Retardant rwb thaiv tsev: Ntau cov cables siv hauv mines yog tsim los ntawm cov khoom siv hluav taws kub-resistant los yog nplaim hluav taws-retardant rwb thaiv tsev. Cov ntaub ntawv no tiv thaiv lub cable los ntawm kev ntes hluav taws lossis cia nws ua haujlwm txuas ntxiv txawm tias nyob hauv qhov kub thiab txias.
Tsawg Haus luam yeeb Zero Halogen (LSZH): Ntxiv nrog rau cov nplaim taws, LSZH cables feem ntau siv hauv cov mines vim tias lawv tawm cov pa taws tsawg thiab tsis muaj halogen gases thaum combustion. Qhov no yog qhov tseem ceeb rau kev ua kom ntseeg tau tias cov neeg ua haujlwm hauv av tuaj yeem khiav tawm tau zoo thaum muaj hluav taws kub.
2.6 Electromagnetic cuam tshuam (EMI) Kev Tiv Thaiv
Kev ua haujlwm hauv av hauv av feem ntau koom nrog cov khoom siv hluav taws xob loj uas tsim hluav taws xob cuam tshuam (EMI), uas tuaj yeem cuam tshuam kev sib txuas lus thiab cov ntaub ntawv xa mus. Mining cables uas siv rau kev sib txuas lus lossis cov ntaub ntawv teeb liab yuav tsum tau tiv thaiv kom tsis txhob cuam tshuam qhov no.
Shielded Cables: Cov teeb liab thiab kev sib txuas lus cables feem ntau tiv thaiv nrog cov ntaub ntawv zoo litooj liab braidlos yogntawv citiv thaiv EMI. Qhov no ua kom ntseeg tau tias cov teeb liab tseem pom tseeb thiab tsis muaj kev cuam tshuam, uas yog qhov tseem ceeb rau kev ua haujlwm ntawm kev sib txuas lus, ceeb toom xwm txheej ceev, thiab kev saib xyuas.
3. Hom Mining Cables
Muaj ntau ntau yam ntawm cov mining cables, txhua tus tsim rau cov kev siv tshwj xeeb thiab ib puag ncig.Nkag siab txog qhov sib txawv ntawm cov mining cablesNws yog ib qho tseem ceeb thaum xaiv qhov tsim nyog rau ib qho kev lag luam mining.
3.1 Fais fab Cables
Fais fab cables yog siv los xa cov hluav taws xob hluav taws xob rau cov tshuab hnyav, nrog rau kev xyaum, conveyors, twj, thiab cua tshuab. Cov cables no feem ntau loj dua qhov loj thiab yog tsim los nqa high voltage thiab loj tam sim no loads.
3.2 Tswj Cables
Cov kab hluav taws xob tswj tau siv los tswj kev ua haujlwm ntawm cov khoom siv mining, nrog rau cov motors, sensors, thiab keyboards. Cov cables no feem ntau muaj qis dua voltage thiab hloov tau yooj yim dua kom haum rau kev txav ntawm cov tshuab.
3.3 Teeb liab thiab kev sib txuas lus Cables
Cov cables no yog siv rau kev xa cov teeb liab, cov ntaub ntawv, thiab kev sib txuas lus. Cov teeb liab cables feem ntau tsis tshua muaj hluav taws xob thiab feem ntau siv hauv cov tshuab xws li xov tooj cua ob txoj kev, intercoms, thiab cov chaw taws teeb tswj.
3.4 Trailing Cables
Trailing cables yog hloov tau yooj yim, hnyav-lub luag haujlwm cables siv los muab lub zog rau cov khoom siv mobile mining xws li shovels, drills, thiab mining trucks. Cov cables no yog tsim los tiv thaiv qhov kev txav mus tas li ntawm cov tshuab thiab cov neeg kho tshuab hnyav.
3.5 Hluav taws kub-Resistant Cables
Cov kab hluav taws xob tiv thaiv hluav taws yog qhov tseem ceeb rau kev tswj xyuas hluav taws xob thiab kev sib txuas lus thaum muaj hluav taws kub. Lawv feem ntau yog siv nyob rau hauv kev ruaj ntseg systems, teeb pom kev zoo thaum muaj xwm ceev, thiab hluav taws kub tswb circuits.