1.14kV Coal Mine Shearer Cable

Lub 1.14kV shearer cable yog lub zog txawb hluav taws xob rau kev siv tshuab ua haujlwm tag nrho hauv cov mines hauv av. Nws yog tsuas yog siv los xa cov khoom siv hluav taws xob thiab tswj cov cim rau cov thee shearers. Cov qauv siv hauv tsev feem ntau suav nrog MCP thiab MCPTJ. Ua raws li lub teb chaws cable naming qauv, M stands rau kuv- siv cable, C rau shearer dedication, P rau metallic shielding qauv, thiab TJ rau tensile zog tus tswv cuab nrog saib xyuas core. Nrog rau qhov ntsuas hluav taws xob ntawm 0.66 / 1.14kV, lub cable no sib tw rau qis -voltage fais fab faib system ntawm cov cuab yeej siv hauv av thiab ua haujlwm raws li tus qauv txhawb nqa cable rau kev ua haujlwm ntawm cov thee mining.

Shearer cables tau tso mus tas li nyob rau hauv cov av mining ntsej muag nrog kev ua haujlwm zoo ib yam thiab nyuaj. Txoj kev hauv av muaj cov av noo siab nrog cov dej sib xyaw ua ke. Thaum lub sij hawm ua hauj lwm, lub cable txav reciprocally nrog lub shearer nyob rau hauv tas li khoov, dragging thiab hloov chaw. Nws yog feem ntau raug rau cov neeg kho tshuab compression, kev sib txhuam thiab kev cuam tshuam los ntawm cov thee thiab pob zeb. Cov cheeb tsam mining muaj cov khoom tawg xws li methane thiab thee hmoov av. Kev txwv los ntawm qhov chaw hnyav li no, lub cable yuav tsum ua kom tau raws li qhov yuav tsum tau ua rau lub zog siv tshuab, nplaim hluav taws kub thiab tawg- pov thawj kev ua tau zoo kom haum rau siab - kev pheej hmoo ua hauj lwm scenarios.

Raws li kev ua haujlwm hauv av, shearer cables yuav tsum ua raws li cov qauv kev lag luam uas yuav tsum tau ua. Tag nrho cov khoom tsim nyog hauv tsev tau ua raws li MT 818.4-2009, lub teb chaws tus qauv rau mine cables. Cov khoom raug cai yuav tsum tau txais MA daim ntawv pov thawj kev nyab xeeb. Nyob rau hauv cov nqe lus ntawm dabtsi yog khoov qaug zog kuj, lub cable yuav tsum tau tiv thaiv lab ntawm dabtsi yog khoov voj voog yam tsis muaj conductor breakage thaum lub sij hawm tas mus li reciprocating zog. Mechanically, lub sheath, filling thiab shielding txheej yuav tsum nyob twj ywm tsis muaj kev puas tsuaj los yog delamination nyob rau hauv dragging, compression thiab cuam tshuam. Kev soj ntsuam daim ntawv pov thawj npog txhua yam muaj zog, nplaim hluav taws kub qib, rwb thaiv tsev tiv thaiv thiab thaiv kev txuas ntxiv mus rau tus qauv tsim khoom zoo thiab ua kom muaj kev nyab xeeb hauv av.

Cov nplaim hluav taws kub hnyiab yog qhov ntsuas kev nyab xeeb tseem ceeb rau kuv cov cables. Cov khoom siv cable ua tiav nws tus kheej-kev tua hluav taws kom tsis txhob muaj nplaim taws tawm ntawm cov kab thiab txo cov hluav taws kub hnyiab. Tus neeg xyuas pib siv ntau-strand saj zawg zog qauv los txo cov hlau qaug zog tshwm sim los ntawm nquag txav thiab tuav ntev -lub sij hawm hluav taws xob stability.

Lub shearer cable txais yuav ntau- txheej txheej txheej. Txhua txheej ua tiav cov haujlwm kom hloov mus rau qhov hnyav hauv av yam tsis muaj kev tsim kho dua tshiab. Chav Kawm 5 lossis Chav Kawm 6 cov khoom siv ua tau zoo ntawm cov khoom siv tooj liab tau siv rau kev khoov zoo heev. Tinned tooj liab conductors yog xaiv tau rau qhov chaw ntub dej kom qeeb oxidation. Ethylene Propylene Roj Hmab (EPR) lossis nplaim taws- cov ntaub ntawv polymer retardant feem ntau yog siv rau rwb thaiv tsev, muab kev ua haujlwm ruaj khov dielectric thiab elastic deformation tsis kam.

Rubber fillers tau teem caij nruab nrab ntawm cov cores kom muaj lub voj voog ncig -section thiab tiv thaiv cov tub ntxhais dislocation nyob rau hauv compression. Ib txheej cushion sab hauv qhwv cov tub ntxhais cable kom stabilize cov qauv sab hauv thiab txo cov kev sib txhuam interlayer. Lub shielding system yog lub hauv paus kev ruaj ntseg tivthaiv, muaj xws li ib tug theem shielding thiab tag nrho cov tooj liab braided shielding. Txhua lub zog tseem ceeb yog qhwv nrog cov khoom siv tiv thaiv kev tiv thaiv, thiab tag nrho cov tinned tooj liab braid npog lub cable sib dhos. Cov qauv no sib npaug ntawm qhov hluav taws xob thiab suppresses electromagnetic cuam tshuam. Nyob rau hauv cov ntaub ntawv ntawm rwb thaiv tsev tawg, txhaum tam sim no ntws los ntawm lub shielding txheej rau ceev ceev grounding, ua rau kom tiv thaiv thiab txiav tawm lub hwj chim kom tsis txhob arc ignition ntawm flammable underground gas.

Cov khaubncaws sab nraud povtseg ua los ntawm aramid fiber ntau lossis hlau xaim tau ntxiv rau cov qauv tshwj xeeb kom dais axial nro thiab txo cov neeg xyuas pib kev ntxhov siab, feem ntau siv rau ntev -nruab deb thiab loj- inclination ua hauj lwm lub ntsej muag. Lub plhaub sab nrauv yog ua los ntawm neoprene, chlorosulfonated polyethylene lossis polyurethane elastomer. Cov pa roj carbon dub ntxiv los txhim kho kev puas tsuaj, tsim kua muag thiab kev laus ua haujlwm. Qee cov sheaths yog tsim los nrog tsa ridges kom txo tau kev sib txhuam poob thaum rub

Shearer cables feem ntau txais yuav cov qauv kev teeb tsa ntawm 3 lub zog cores + 1 grounding cores + ntau yam tswj cores. Fais fab cores lees txais lub zog loj xa mus; lub hauv paus tseem ceeb muab kev tiv thaiv equipotential; tswj cores kis pib, saib xyuas thiab tawm tswv yim teeb liab. Cov ntsiab lus tseem ceeb sib txawv sib txawv shearer lub zog ntsuas tau teev nyob rau hauv cov lus hauv qab no:

Cov kab no feem ntau yog siv rau hauv av tag nrho cov tshuab mining ntsej muag. Ntxiv nrog rau cov thee shearers, nws kuj yog sib xws nrog scraper conveyors, mobile substations thiab lwm yam khoom siv hluav taws xob hauv av. Nws yoog mus rau kev ua haujlwm nrog kev txav mus los, cov av noo tas li thiab muaj kev phom sij tawg, ua tau raws li cov kev cai dav dav ntawm kev lag luam thee mining.

Lub 1.14kV shearer cable yog cov roj hmab tshwj xeeb uas kho tau - sheathed saj zawg zog cable tsim rau underground mining tej yam kev mob. Nws cov txheej txheem tiv thaiv ntau- txheej txheem, hloov pauv tus neeg xyuas pib thiab ob qhov thaiv kev tiv thaiv tau tsim los ua kom tau raws li cov neeg siv khoom txav thiab tawg- cov ntaub ntawv pov thawj. Raws li tus qauv txhawb nqa cable rau tag nrho cov tshuab mining ntsej muag, nws muab kev ua haujlwm ruaj khov thiab muaj kev nyab xeeb rau cov cheeb tsam hauv av thiab tau dav siv rau cov khoom siv hluav taws xob thiab cov teeb liab kis ntawm cov khoom siv hluav taws xob hauv av.