Makina ochotsera fumbi la migodi ya malasha sizowonjezera zomwe mungasankhe-ndiwo chitetezo chakutsogolo ku matenda opumira, chiwopsezo cha kuphulika, komanso kutsika kwa nthawi yopanga. Muzochitika zenizeni padziko lonse lapansi ku Shandong, Shanxi, ndi Inner Mongolia, tawona kulephera kwa mpweya kumayambitsa kuyimitsidwa kosakonzekera mkati mwa maola 72. Kuchulukana kwafumbi pamakona amagalimoto? Zatsimikiziridwa m'magawo atatu osiyana amaso a malasha chaka chatha. Kusagwirizana kwa mafani pambuyo pa miyezi isanu ndi umodzi yogwira ntchito mosalekeza? Nkhani yobwerezedwa-mpaka ogwiritsira ntchito atasinthira ku mayunitsi opangidwa ndi cholinga, okhazikika bwino okhala ndi ma bere ophatikizika osindikizidwa fumbi.
Chifukwa chiyani mafani a Standard Amalephera Mobisa
Chofanizira cha axial chomwe chimagwiritsidwa ntchito nthawi zonse chimasuntha mpweya. A fani yochotsa fumbi la malasha imasuntha mpweya *ikupulumuka* zinthu zowononga, chinyezi chambiri, mpweya wodzaza ndi methane, komanso kusinthasintha kwamagetsi komwe kumachitika m'ma gridi akutali amigodi. Zolephera zambiri zimabwerera kumalingaliro atatu osagwirizana:
- Lingaliro #1: "Fumbi ndi fumbi lopangidwa ndi mpweya." Zoona zake: Fumbi la malasha limanyamula chiwongolero chokhazikika, limamatirira pamalo opangira ma electrostatically, ndipo limawononga masamba a aluminiyamu pa 0.08 mm/chaka pansi pa katundu wopitilira.
- Lingaliro #2: "Umboni wosaphulika = wosalekerera fumbi." Zoona zake: Nyumba yagalimoto yovomerezeka ya Ex-d imalepheretsa kuyaka-koma siyiletsa fumbi kutseka zipsepse zoziziritsa, kukweza kutentha kwa mafunde ndi 22 ° C kuposa malire omwe adavotera.
- Lingaliro #3: "CFM yapamwamba nthawi zonse imatanthauza kuwongolera bwino." Zoona zake: Mpweya wa chipwirikiti, wosakhazikika, umazunguliranso fumbi m’malo molilanda kumene kuli gwero. Kuchotsa kogwira mtima kumafuna ma profayilo othamanga ofananira ndi kapangidwe ka hood - osati kutulutsa kosasinthika.
Tidayezera izi mu 2023 retrofit pa Datong underground longwall panel. Kusintha 30 kW mix-flow unit ndi FBD series (dⅠ) counter-rotating axial fan inadula mawonekedwe a fumbi lopumira ndi 64%—osati chifukwa inkasuntha mpweya wochulukirapo, koma chifukwa chakuti mapindikidwe ake apawiri amapitilira 18 m/s kugunda kwamphamvu polowera ku scrubber, ngakhale kukana zosefera kumakwera.
Zofunikira Zinayi Zosakambirana
Kufotokozera a fani yochotsa fumbi la malasha kumatanthauza kuika patsogolo uinjiniya wotsimikiziridwa m'munda kuposa zolemba zamakalata. Izi ndi zomwe zili pansi pano:
- Kusanja kwamphamvu kotsekedwa ndi fumbi: Ma rotor okhazikika mpaka G2.5 giredi *pambuyo* kusonkhana kwathunthu-kuphatikiza zishango zafumbi ndi zolumikizirana shaft-osati zotengera zopanda kanthu. Kugwedezeka kosagwirizana kumathandizira kuvala ndi 3.7 × m'malo afumbi.
- Mapangidwe olimbana ndi corrosion: Nyumba zazitsulo zamagalasi zimalephera pomwe H₂S imakumana ndi condensation. Mafani a Titaniyamu amalimbana ndi kukhudzana ndi mpweya wa asidi; Chitsulo cha kaboni chokutidwa ndi ISO 12944 C5-M chimatenga nthawi yayitali 3 × kuposa utoto wamba pama sump onyowa.
- Ungwiro wotsimikizira kuphulika pansi pa kupsinjika kwa kutentha: Ma motors ayenera kusunga certification ya Ex-d pa 110°C mozungulira—nthawi zambiri pafupi ndi ma conveyor drives. Izi zimafunika kutsekereza * ndi* mabokosi osagwiritsa ntchito chitsulo cha Class H kuti aletse kufalikira kudzera m'mabawuti okwera.
- Kukonza kotheka ndi utumiki: Palibe disassembly yofunikira kuti mukhale ndi m'malo. Akatswiri a pamalopo ku Xuzhou adatsimikiza kuti adalowa m'malo mwa 9-19 centrifugal blower m'mphindi 47 - pogwiritsa ntchito ma wrench awiri okha popanda crane.
Deployment Real Deployment: Zomwe Zimagwira Ntchito Komwe
Palibe yankho lachilengedwe. Kugwiritsa ntchito kumatengera kapangidwe kake:
- Mitu yachitukuko: Mafani a FBD olimbana ndi ma axial amatulutsa 12–28 kPa static pressure—yokwanira kukankhira mpweya kupyola 500+ metres ya ducting uku mukusunga kuthamanga kwa nkhope. Mapangidwe awo amagetsi apawiri amachotsa kutsetsereka kwa lamba ndikupangitsa kuti pakhale kuyambika kuti apewe kuwomba kwa gridi.
- Bomba la malasha & malo osinthira: Mafani a anti-corrosion centrifugal okhala ndi masamba okhota chakumbuyo amanyamula fumbi lokwana 350–450 g/m³ popanda kutsika. Tidayesa gawo limodzi mosalekeza kwa miyezi 14 pamalo ochapira a Yanzhou - ogwira ntchito mkati mwa ± 1.3% ngakhale tinkayeretsa tsiku lililonse.
- Masiteshoni apansi panthaka: Mafani a titaniyamu osaphulika amakhala chete pa 72 dBA - ngakhale atadzaza. Kupanga kwawo kopanda maginito kumachotsa kutentha kwa eddy komwe kuli pafupi ndi ma switchgear apamwamba kwambiri.
Mphamvu yokoka zinthu. Wogwiritsa ntchito molakwika 45 kW fan akuthamanga 24/7 amawononga $ 18,700 / chaka mumagetsi okha (pa $ 0.08 / kWh). Ufulu fani yochotsa fumbi la malasha-Kukometsedwa kwa kukana kwamakina, osati kutulutsa kwapamwamba-kudula komwe ndi 22-31% popanda kusiya kugwiritsa ntchito bwino.
Kusankha Wokondedwa Wanu, Osati Chogulitsa Chokha
Mufunika uinjiniya wa ntchito - osati kalozera wa PDF. Makasitomala a Heilongjiang atanena kuti kung'ambika kobwerezabwereza m'mapaipi awo otulutsa sulfurization, gulu lathu linatumiza mainjiniya am'munda wokhala ndi makina onyamula ma vibrometer ndi tinthu tating'ono. Choyambitsa? Resonance pa 1,740 RPM ikugwirizana ndi ma boiler pulsation frequency. Yankho: Kuwerengera kwamasamba kosinthidwa mwamakonda ndi malo owonjezera - kuperekedwa m'masiku 11.
Zibo Hongcheng Fan Co., Ltd fani yochotsa fumbi la malasha m'nyumba-kuchokera ku zoyika za titaniyamu zamakina olondola kwambiri kupita kumayendedwe osaphulika agalimoto-pansi pa ISO 9001-aligned inspection protocols. Chigawo chilichonse chimayesedwa kwa maola 48 ndikutsitsa fumbi lofananira lisanatumizidwe. Palibe ma subcontracting akunja. Palibe "standard" kunyengerera.
Ubwino wa mpweya wapansi panthaka sikutanthauza kutsata - ndi kupitiriza. Ndiko kusiyana pakati pa kusintha komwe kumakhala koyera ndi komwe kumayimitsidwa ndi alamu yoyambitsa fumbi ya methane. Sankhani chokupiza chopangidwira zenizeni za mgodi-osati malonjezo a kabukuka.
