Ngemva kokushicilelwa koshicilelo luka-Okthoba Lwezimayini Zamazwe Ngamazwe, futhi ikakhulukazi isici sonyaka sokuchotshozwa nokuhanjiswa kwemigodi emgodini, sibhekisise enye yezinto ezibalulekile ezakha lezi zinhlelo, i-apron feeder.
Kwezimayini,ama-apron feedersdlala indima ebalulekile ekuqinisekiseni ukusebenza kahle nokwandisa isikhathi sokuphumula. Izicelo zabo kumasekethe okucubungula amaminerali ahlukahlukene kakhulu; nokho, amakhono abo aphelele awaziwa kahle embonini yonkana, okuholela emibuzweni eminingi ephakanyiswe.
UMartin Yester, iGlobal Product Support, iMetso Bulk Products, iphendula eminye yemibuzo ebaluleke kakhulu.
Ngamagama alula, i-apron feeder (eyaziwa nangokuthi i-pan feeder) iwuhlobo lwemishini yokuphakelayo olusetshenziswa ekusebenzeni okuphathekayo ukuze kudluliselwe (okuphakelayo) impahla kwezinye izinto zokusebenza noma kusuka kuhlu lwesitoreji, ibhokisi noma i-hopper ukuze kukhishwe impahla (insimbi/itshe). ) ngenani elilawulwayo.
Lezi ziphakeli zingasetshenziswa ezinhlelweni ezihlukahlukene emisebenzini yamabanga aphansi, eyesibili kanye nephakeme (yokubuyisela).
Ama-apron feeder e-tractor chain abhekisela kumaketango angaphansi kwenqola, ama-roller namasondo omsila aphinde asetshenziswe kuma-bulldozers kanye nabavubukuli.Lolu hlobo lokuphakelayo lulawula izimboni lapho abasebenzisi bedinga i-feeder engakwazi ukukhipha izinto ezinezici ezihlukahlukene. ukungena ezikhonkwaneni zangaphakathi namabhushi, kunciphisa ukuguga nokwelula impilo yemishini uma kuqhathaniswa namaketango omile.Iziphakeli zephinifa likagandaganda zinciphisa ukungcoliswa komsindo ukuze kusebenze kancane.Izixhumanisi zeketango ziphathwa ukushisa isikhathi eside.
Sekukonke, izinzuzo zifaka ukuthembeka okwengeziwe, izingxenye ezisele ezimbalwa, ukunakekelwa okuncane kanye nokulawulwa okungcono kokuphakelayo.Ngembuyiselo, lezi zinzuzo zikhulisa ukukhiqiza ngezingqinamba ezincane kunoma iyiphi iluphu yokucubungula amaminerali.
Inkolelo evamile mayelanaama-apron feedersukuthi kufanele zifakwe zivundlile.Hhayi-ke, ngokuphambene nenkolelo evamile, zingagxunyekwa emithambekeni!Lokhu kuletha izinzuzo nezici eziningi ezengeziwe.Lapho ufaka i-apron feeder emthambekeni, kudingeka isikhala esincane jikelele - hhayi kuphela ukuthambeka. nciphisa isikhala saphansi, futhi kunciphisa ukuphakama kwe-hopper etholayo.Iziphakeli zephinifa ezishelelayo zithethelela kakhulu uma kuziwa ezigabeni ezinkulu zempahla futhi, sekukonke, zizonyusa ivolumu ku-hopper futhi zinciphise izikhathi zomjikelezo wamaloli athuthayo.
Khumbula ukuthi kunezici ezithile okufanele uziqaphele lapho ufaka i-pan feeder emthambekeni wokuthuthukisa inqubo.I-hopper eklanywe kahle, i-engeli yokuthambekela, idizayini yesakhiwo sokusekela, nesistimu yamaphaseji nezitebhisi ezizungeze isiphakeli. zonke izici ezibalulekile.
Umbono oyiphutha ovamile mayelana nokusebenzisa noma iyiphi idivayisi ithi: “Ngokushesha kuzoba ngcono.”Mayelana neziphakeli zephinifa, akunjalo.Isivinini esiphezulu sivela ekutholeni ibhalansi phakathi kokusebenza kahle kanye nesivinini sokuthumela.Ahamba kancane kuneziphakeli zamabhande, kodwa ngesizathu esihle.
Ngokuvamile, isivinini esilungile se-apron feeder ngu-0.05-0.40 m/s. Uma insimbi ingagabi, isivinini singanyuswa sibe ngaphezu kuka-0.30 m/s ngenxa yokuncipha okungenzeka kokugqoka.
Isivinini esiphezulu siphazamisa ukusebenza: uma isivinini sakho siphezulu kakhulu, uzibeka engcupheni yokuguga okusheshayo ezintweni ezisetshenziswayo.Ukusebenza kahle kwamandla nakho kuyehla ngenxa yokwanda kwesidingo samandla.
Enye inkinga okufanele ikhunjulwe lapho usebenzisa i-apron feeder ngesivinini esikhulu ukwanda kwamathuba ezinhlawulo.Kungase kube nemiphumela elimazayo phakathi kwempahla nepuleti.Ngenxa yokuba khona okungenzeka kothuli olubalekayo emoyeni, ukudalwa kwezinhlawulo kudala izinkinga eziningi kuphela, kodwa futhi kudala indawo yokusebenza eyingozi kakhulu kubasebenzi bebonke.Ngakho-ke, ukuthola isivinini esikhulu kubaluleke nakakhulu ekukhiqizeni kwezitshalo nokuphepha kokusebenza.
Iziphakeli ze-apron zinemikhawulo uma kukhulunywa ngosayizi kanye nohlobo lwensimbi. Imikhawulo izohluka, kodwa impahla akufanele ilahlwe ngokungenanjongo esiphakelini. Akufanele ucabangele kuphela uhlelo lokusebenza lapho uzosebenzisa khona okokuphakelayo, kodwa nalapho lokho i-feeder izofakwa ohlelweni.
Ngokuvamile, umthetho wemboni wamasayizi wesiphakeli sephinifa okufanele ulandelwe ukuthi ububanzi bepani (isiketi sangaphakathi) kufanele buphindwe kabili kobukhulu bengxenye enkulu yezinto ezibonakalayo.Ezinye izici, njenge-hopper evulekile eklanywe kahle ehlanganiswe nokusetshenziswa "i-rock flip plate", ingase ithinte usayizi wepani, kodwa lokhu kusebenza kuphela ezimweni ezithile.
Akuvamile ukuthi ukwazi ukukhipha u-1,500mm wezinto ezibonakalayo uma kusetshenziswa isiphakeli esingu-3,000mm esibanzi.Into engalungile engu-300mm ekhishwe kuzinqwaba ze-crusher ore noma amabhokisi okugcina/okuxuba ngokuvamile akhishwa kusetshenziswa i-apron feeder ukuze kuphakelwe isigaxa sesibili.
Lapho wenza usayizi wesiphakeli sephinifa kanye nesistimu yokushayela ehambisanayo (motho), njengezingcezu eziningi zemishini embonini yezimayini, ulwazi nolwazi lwalo lonke uhlelo lubaluleke kakhulu.Ukulinganisa kwe-apron feeder kudinga ulwazi oluyisisekelo lwedatha yasembonini ukuze ugcwalise ngokunembile indlela yokunquma. kudingwa “Ishidi Ledatha Yesicelo” (noma umphakeli uthola ulwazi lwakhe).
Imibandela eyisisekelo okufanele icatshangelwe ihlanganisa izinga lokudla (izinga eliphezulu nelivamile), izakhiwo zezinto ezibonakalayo (njengomswakama, ukuhleleka kanye nokuma), ubukhulu bobukhulu bebhulokhi ye-ore/rock, ukuminyana kwenqwaba ye-ore/rock (isilinganiso esiphezulu nesincane) kanye nokudla kanye ne-Outlet. izimo.
Nokho, ngezinye izikhathi okuguquguqukayo kungase kwengezwe enqubweni yokulinganisa yesiphakeli sephinifa okufanele kufakwe.Okuhlukile okwengeziwe okwengeziwe abahlinzeki okufanele babuze ngakho ukucushwa kwe-hopper. Ngokukhethekile, i-hopper cut length opening (L2) itholakala ngenhla ngqo kwe-apron feeder.Lapho esebenzayo, lena ipharamitha eyisihluthulelo hhayi kuphela yokulinganisa kahle i-apron feeder, kodwa nesistimu yokushayela.
Njengoba kushiwo ngenhla, ukuminyana kwenqwaba ye-ore/rock kungenye yezidingo ezijwayelekile eziyisisekelo futhi kufanele kubandakanye usayizi wesiphakeli esisebenzayo. /m³) noma amaphawundi ku-cubic foot (lbs/ft³). Inothi elikhethekile okufanele likhunjulwe ukuthi ukuminyana kwenqwaba kusetshenziselwa iziphakeli zephinifa, hhayi ukuminyana kwezinto eziqinile njengakwezinye izisetshenziswa zokucubungula amaminerali.
Pho kungani ukuminyana kwenqwaba kubaluleke kangaka?Iziphakeli zephinifa ziyiziphakeli zevolumu, okusho ukuthi ukuminyana kwenqwaba kusetshenziswa ukunquma isivinini namandla adingekayo ukuze kukhishwe amathani athile ento ngehora.Inani elincane lokuminyana kwenqwaba lisetshenziselwa ukunquma isivinini, futhi ubukhulu bobuningi benqwaba bunquma amandla (i-torque) edingwa isiphakeli.
Sekukonke, kubalulekile ukusebenzisa ukuminyana "kobuningi" okulungile kunokuthi "okuqinile" ukuze usayizi wesiphakeli sakho sephinifa. Uma lezi zibalo zingalungile, izinga lokuphakelayo lokugcina lenqubo engezansi lingaba sengozini.
Ukunquma ubude be-hopper shear kuyisici esibalulekile ekunqumeni okulungile nasekukhethweni kwe-apron feeder kanye nesistimu yokushayela (motor).Kodwa lokhu kuqinisekile kanjani?Ubude be-hopper shear ubukhulu obusuka epuleti elingemuva le-hopper eyisiketi ukuya kubha yokugunda endaweni i-outlet end ye-hopper.Kuzwakala kulula, kodwa kubalulekile ukuqaphela ukuthi lokhu akufanele kudidaniswe nosayizi wengaphezulu le-hopper ebambe into.
Inhloso yokuthola lesi silinganiso sobude be-shear ye-hopper ukunquma umugqa wangempela wendiza yokugunda wento futhi lapho okubalulekile kusiketi kuhlukanisa khona (izikere) kwinto (L2) ku-hopper.Ukumelana kwe-shear kwento ngokuvamile kuyalinganiselwa. ukuba phakathi kuka-50-70% wawo wonke amandla/amandla.Lokhu kubalwa kobude be-shear kuzoholela ekutheni kube namandla angaphansi (ukulahlekelwa ukukhiqizwa) noma amandla angaphezu kwamandla (ukwenyuka kwezindleko zokusebenza (i-opex)).
Ukuhlukaniswa kwemishini kubalulekile kunoma yisiphi isitshalo.Njengoba kushiwo ngaphambili, i-apron feeder ingagxunyekwa emithambekeni ukuze konge isikhala.Ukukhetha ubude obufanele be-apron feeder ngeke nje kunciphise izindleko ezinkulu (capex), kodwa futhi kunciphise ukusetshenziswa kwamandla nezindleko zokusebenza.
Kodwa bunqunywa kanjani ubude obuphelele? Ubude obufanele besiphakeli sephinifa yilelo elingahlangabezana nomsebenzi odingekayo ngobude obufushane kakhulu. izinto ezisetshenziswayo eziya ezansi nomfula futhi kuqedwe amaphuzu okudlulisa (kanye nezindleko ezingadingekile).
Ukuze unqume isiphakeli esifushane nesingcono kakhulu, isiphakeli sephinifa sidinga ukubekwa ngendlela evumelana nezimo ngaphansi kwe-hopper (L2). Ngemva kokunquma ubude bokugunda nokujula kombhede, ubude bubonke bungancishiswa ukuze kuvinjelwe lokho okubizwa ngokuthi "ukuzishayela ngokwakho" ukuphela kokukhishwa lapho i-feeder ingenzi lutho.
Ukukhetha isistimu yokushayela elungile yesiphakeli sakho sephinifa kuzoncika ekusebenzeni nezinjongo zesiphakeli.Ama-Apron Feeders aklanyelwe ukusebenza ngesivinini esiguquguqukayo ukuze akhiphe endaweni yokubeka futhi afunze ezansi nomfula ngezinga elilawulwayo ukuze asebenze kahle kakhulu.Izinto ezibonakalayo zingahluka ngenxa yezinto. njengesizini yonyaka, umzimba wensimbi noma ukuqhunyiswa kanye namaphethini okuxuba.
Izinhlobo ezimbili zokushayela ezifanele isivinini esiguquguqukayo amadrayivu emishini esebenzisa izinciphisi zegiya, ama-variable frequency motors nama-variable frequency drives (VFDs), noma ama-hydraulic motors namayunithi kagesi anamaphampu aguquguqukayo. okukhethwa kukho ngenxa yentuthuko yezobuchwepheshe kanye nezinzuzo zezindleko ezinkulu.
Amasistimu okushayela ama-Hydraulic anendawo yawo, kodwa awabhekwa njengefanelekile phakathi kwamadrayivu amabili aguquguqukayo.
Isikhathi sokuthumela: Jul-14-2022
