Amasistimu we-ventilator yezimayini zensimbi akuzona nje izinto ezisetshenziswayo—ziwumugqa wokuqala wokuzivikela ekuncishweni umoya, ekuqhumeni nasekucindezelekeni kokushisa. Emisebenzini yasemhlabeni wangempela, sibone ukwehluleka komoya okubangela ukukhishwa kwezimo eziphuthumayo—hhayi ngoba abalandeli bewohlokile, kodwa ngenxa yokuthi bebengacaciswanga ngokunqwabelana kwe-methane, ukulayishwa kothuli, noma ukuhluka kwengcindezi engazelelwe. Isigameko sango-2023 emayini ye-Shandong nonferrous sikuqinisekisile: i-axial fan yasekuqaleni ihlangabezane nemigomo yevolumu yokugeleza komoya ephepheni kodwa ayikwazanga ukusekela ingcindezi emile engaphezu kuka-1,800 Pa lapho ukumelana nesihlungi kukhuphuke ngo-40% ngemva kwamahora angu-72 okusebenza okuqhubekayo. Yilapho ukwethembeka kuyeka ukuba yithiyori.
Kungani “Ukugeleza Komoya Okwanele” Kuwukucabangela Okuyingozi
Izimayini zensimbi ezingaphansi komhlaba zidinga okungaphezulu kokuphuma kwevolumu. Zidinga ukusabela okuguquguqukayo, ubuqotho besakhiwo ngaphansi kokudlidliza, nokuziphatha okungaphumeleli endaweni eqhumayo. Uchungechunge lwe-FBD (dⅠ) oluvikela ukuqhuma komjovo ophikisana ne-axial flow ventilator yendawo—esetshenziswa ezimayini zama-hard-rock ezingaphezu kuka-37 kulo lonke elase-China naseNingizimu-mpumalanga ye-Asia—lwakhiwe ngokukhethekile ukuze kuvalwe lelo gebe. Idizayini yayo enezinjini ezimbili, ephendukayo iletha umfutho ophakeme ongu-22–28% kunamayunithi e-axial esiteji esisodwa ekufakweni kwamandla afanayo. Okubaluleke nakakhulu, isitifiketi sayo se-Class I, i-Division 1-proof-proof-proof-sakhelwe ku-geometry yezindlu zemoto, isixhumi esibonakalayo sokuvalwa kwe-shaft, kanye nenqubo yokuphonsa engavimbeli inhlansi.
Kodwa ukusebenza akukhona nje ngemininingwane. Kumayelana nokuthi kwenzekani lapho izinga lokushisa le-ambient lifinyelela ku-52°C, umswakama ohlobene ukhuphuka ngaphezu kuka-95%, futhi ukugxiliswa kothuli lwe-silica kudlula u-8 mg/m³. Kubanjwa ama-fan bearings. Ukushelela kokushayela amabhande. Ama-motor windings ayancipha. Kungakho ukukhetha komshini wokungenisa umoya wemayini yensimbi kufanele kuqale ngemephu yemvelo—hhayi ukuphequlula ikhathalogi. Siye sabona amakhasimende ehlisa isikhathi sokusebenza ngo-60% lapho ebelana ngemibiko yokuhlaziywa kwegesi ye-borehole kanye nezinhlelo zansuku zonke zokuthuthwa kwensimbi ngaphambi kokuphothula ukukhetha abalandeli. Idatha yangempela yehlula ukuqagela okuzenzakalelayo njalo.
Okuthathu Okungekona Ukuxoxiswana Ku-Metal Mine Ventilation Design
- Ubuqotho bokuvikela ukuqhuma kufanele budlulele ngale kwenjini. Abalandeli abalinganiselwe ngezindawo ze-Zone 1 basahluleka uma i-inlet ductwork ingenakho ukuqhubeka noma uma izithulisi zinezibophelelo ezingavikelwe. Uchungechunge lwe-FBD luhlanganisa amabhande aphansi aqinisekisiwe ngokuqondile ku-flange ekhwezayo—akukho ukufakwa kabusha kwenkambu okudingekayo.
- Ukuphatha uthuli akuyona inketho—kuyanqwabelana. Umlandeli oletha u-12,000 m³/h ekuqaleni wehla uya ku-9,300 m³/h ngemva kwezinsuku ezingu-14 ngaphandle kokulungiswa uma ukuhlunga kwe-inlet kunganele. Amafeni e-Titanium—aklanyelwe izindawo ezinokugqwala kakhulu, izindawo ezihuzuka kakhulu—agcina u->94% wokugeleza komoya okulinganiselwe ngezikhathi ezithile zezinsuku ezingu-30 ngaphandle kokuhlanza.
- Lawula ukusabela izindaba ngomshoshaphansi. Amadrayivu e-variable frequency (VFDs) kufanele asabele phakathi kwamasekhondi angu-1.2 kuzibangeli zezinzwa ze-CO. Amayunithi anamaluphu okulawula e-analog kuphela engeza imizuzwana engu-4–7 yokubambezeleka—isikhathi esanele sokuba ukugxiliswa kwe-methane kweqe umkhawulo we-LEL ongu-5% ezitobhini ezivaliwe.
Lapho Ngaphandle Kweshalofu Kuphephile Ngokunele
Abanye bangase baphikise ngokuthi abalandeli bezimboni ezijwayelekile basebenza kahle ngezesekeli zokuphepha ezingeziwe. Kodwa-ke, ukungeza izindawo ezivalekile ezivikela ukuqhuma kufeni ye-axial yenhloso evamile kudala amabhodlela ashisayo, kunciphisa ukufinyelela kwesevisi, futhi kunqamula izitifiketi zemishini yoqobo. Okubi nakakhulu, yethula amaphuzu amasha okuhluleka: ukulahlekelwa kokucindezelwa kwe-gasket, ukuwohloka kwe-conduit seal, kanye nokukhathala okubangelwa ukudlidliza kwezintambo. Ukwenza ngendlela oyifisayo akuphathelene nokunethezeka—kumayelana nokususa ukuxhumana lapho ubungozi bugxila khona.
I-Zibo Hongcheng Fan Co., Ltd. yakha lesi simiso ekuhambeni kwayo komsebenzi. Lapho imayini yethusi e-Yunnan idinga ifeni enamandla angu-3,200 Pa static pressure ku-8,500 m³/h kuyilapho isebenza ngokuqhubekayo ku-75°C izinga lokushisa lokukhipha umoya, onjiniyela abazange balungise imodeli ekhona. Baphinde basebenzisa amaphrofayili e-blade twist ku-ANSYS CFX, bakhethe i-Inconel 625 yamahabhu we-rotor, futhi baqinisekisa ukubekezelela ukunwetshwa kokushisa phakathi nokuhlolwa kokushiswa kwamahora angu-120. Umphumela? Iyunithi egunyazwe ku-GB 3836.1–2021 kanye ne-ISO 8573–1 Ikilasi lesi-2 lokungcoliswa kwensipho—ilethwa emavikini angu-11, hhayi izinyanga eziyisithupha.
Okuza Ngemva Kwe-invoyisi Okubaluleke Kakhulu
I-ventilator yemayini yensimbi ayizuzi inani layo ngesikhathi sokufakwa-izibonakalisa ngesikhathi sokushintsha kwesithathu kweviki 17. Yilapho ama-harmonics okudlidliza eveza ukungahambi kahle, lapho ukuthwala amathrendi okushisa kuveza ukungqubuzana kokugcoba, futhi lapho umqondo wokulawula uveza izimbungulu ze-firmware. I-Zibo Hongcheng Fan Co., Ltd. ihlanganisa ukulungela ukuhlonza okukude kuwo wonke amayunithi e-FBD namayunithi ochungechunge lwe-titanium: Usekelo lwe-Modbus TCP, izinzwa ezingaphakathi kwezinga lokushisa/ukucindezela/ukudlidliza, kanye nezilawuli zomqondo ezithuthukiswayo ze-firmware. Ochwepheshe basezindaweni abalindi ukuwohloka—babona ukuchezuka ngo-3% wokwanda kwe-amplitude, hhayi u-30%.
Isevisi ayisebenzi. Kuyabikezela. Ithimba labo lonjiniyela besicelo libuyekeza izikimu zokungenisa umoya ezimayini ngaphambi kokulethwa—hhayi ukuze kuthengiswe, kodwa ukuze kuhlabe umkhosi ukungafani kobude bepayipi, isiphithiphithi esibangelwa indololwane, noma ukulungiswa kokuminyana okusekelwe ekuphakameni okushintsha izidingo zamandla ehhashi kufika ku-11%. Lokho kunaka kuvimbela ukubuyiselwa kwenkundla ezibizayo futhi kugcina izindiza zithobelana nezindinganiso zokuphepha zase-China ze-AQ 2013–2018.
Ukungena komoya okubalulekile ngokuphepha akunasikhala sokufaka engozini. Yonke i-ventilator yezimayini yensimbi kufanele iphendule imibuzo emithathu ngaphambi kokuthunyelwa: Ingabe iyasinda emvelweni? Ingabe isabela kuzimpawu ezisongela ngokushesha kunesikhathi sokusabela komuntu? Ingabe i-ecosystem yayo esekelayo ilindele izindlela zokuhluleka—hhayi nje ukuzibhala phansi? I-Zibo Hongcheng Fan Co., Ltd. iphendula ngoyebo—hhayi njengezimangalo zokumaketha, kodwa njengemibiko yokuhlola, amalogi enkambu, namarekhodi okucwaninga ezinkampani zangaphandle. Ngoba ngaphansi komhlaba, ukugeleza komoya akukalwa ngama-cubic metres ngomzuzu. Kukalwa ezimpilweni ezisekelwayo, amashifu aqediwe, futhi izimo eziphuthumayo ziyagwenywa.
