Mine ventilation fan rotor kutadza kumisa kuyerera kwemhepo-uye mumigodhi yepasi pevhu, zvinoreva njodzi yekukurumidza kuhupenyu, kugadzira, uye kutevedzera mutemo. Takatsiva pamusoro pe 217 rotors mhiri kweFBD series explosion-proof axial fans in Shandong and Shanxi coal mines kubvira 2022. Muzviitiko zvose, chikonzero chechikonzero chakanga chisina kuparara kamwe kamwe-chaifungidzirwa kupfeka masked nekusawirirana kwekutarisa, kuiswa kusina kurongeka, kana kugadziriswa kunononoka. Gwaro iri rinoburitsa zvatinoona pa-saiti: kwete dzidziso, asi matanho chaiwo, nguva, uye zvikumbaridzo zvinoparadzanisa kushanda kwakachengeteka kubva pakumanikidzwa kuvharwa.
Kana Kutsiva Kusingakurukurirane—Hakusi Kungokurudzirwa
Mugodhi wemhepo inofefetera fan rotor inoshanda pasi pekunyanya kushushikana kwemagetsi: kutenderera kunoramba kuripo pa1,450-2,980 rpm, kuratidzwa kune abrasive marasha guruva, hunyoro, uye kupisa bhasikoro. Vibration spikes pamusoro pe4.2 mm/s (RMS, ISO 10816-3 Zone C) chiratidzo cherotor kusaenzana-kwete kungotakura kupfeka. Isu tinoyera izvi zuva nezuva tichishandisa handheld laser vibrometers panguva yekuchinja handover. Kana vibration ichikwira 18% vhiki-pa-vhiki * uye * chikamu chekuongorora chinoratidza hukuru 1 × frequency, rotor kutsiva kunotanga mukati maawa makumi manomwe nemaviri. Kumirira kutsemuka kunoonekwa kana kugaya kunonzwika kunokoka kukundikana kukuru. Rotor muFBD-6.3 (dⅠ) mafani atadza pakati-shift mushure memaawa gumi nemana ekushanda pasina kuenzanisazve - kunyangwe ne "zvakanaka" kuverenga kuverenga.
Iyo Four-Stage Maintenance Protocol Inodzivirira 91% yeRotor Kukundikana
Isu tinosimbisa iyi kutevedzana pane yega saiti yemugodhi pane yedu mine ventilation fan rotor mayunitsi anoshanda:
- Danho 1 - Pre-removal diagnostics: Dzima simba, kiya kunze tag kunze (LOTO), wobva waona zero voltage. Shandisa chiratidzo chedhiya kumepu yekumhanya pahub uye blade matipi-inodarika 0.12 mm inoratidza deformation zvachose.
- Nhanho 2 - Inodzorwa disassembly: Bvisa mablades kutanga-kwete hub. Shandisa macalibrated torque wrenches (kwete maturusi ekuita) akaiswa ku85 N·m for M12 fasteners paFBD series. Kukanganwa nhanho iyi kunotenderedza hub flange pa63% yeakarangarira rotors.
- Danho rechitatu - Precision reconditioning: Chenesa mashizha ultrasonically mu pH-neutral solvent. Ongorora mhepo yega yega kudzika kwegomba> 0.08 mm (yakayerwa nedhijitari yakadzika geji). Tsiva chero blade nekukukurwa kwepasi kunodarika 12% yekukora kwepakutanga.
- Danho rechina - Dynamic balancing: Kuenzana kusvika kuG2.5 giredhi paISO 1940-1. Usambofa wakasvetuka izvi-kunyangwe rotor nyowani. Yedu yebvunzo lab yakawana 74% ye "off-the-sherufu" inotsiva yakapfuura 5.1 mm/s vibration isati yaenzanisa.
Nei “Kungofanana Neakare” Ndiyo Yakanyanya Kukanganisa Chikanganiso
Vamwe vashandisi vanoodha ma rotor akafanana kuti vadzivise kufanirwa. Asi kuneta kwezvinhu hakugadziriswe. Rotor iyo yakamhanya 18 mwedzi mupamusoro-methane mugero ine microstructural shanduko hapana yekuona yekuongorora kubata. Isu ikozvino tinopa ese ekutsiva rotor ane traceable kupisa-kurapwa zvitupa uye batch-specific tensile simba data (min. 725 MPa goho reQ345B simbi). Titanium rotor-yenzvimbo dzinoparadza gasi-inoda kuzere ASTM B265 Giredhi 2 kuongororwa. Kushandisa zvisina-certified parts voids explosion-proof certification (GB 3836.1–2021) uye inokonzeresa kupihwa chitupa-inodhura $12,000+ uye 17 days downtime.
Real-World Mutengo & Nguva Yenguva Kuparadzana
Kutsiva mine ventilation fan rotor haisi yechikamu chemutengo wega. Hezvino izvo chaizvo zvinofambisa tsono:
- Basa: 6.5 maawa mashoma (kusanganisira LOTO, diagnostics, kuenzanisa, kudzokorora). Vanamazvikokota vane hunyanzvi chete-hapana vanodzidzira pamabasa akakosha-nzira.
- Chirango chekurega basa: Pamatani miriyoni 1.2/gore rinobuda, awa yega yega isina mhepo inodhura madhora zviuru zvisere nemazana mana mukugadzirwa kwakarasika + $2,100 muzvirango zveventilation system (pamutemo wekuchengetedza dunhu).
- Zvikamu: Standard kabhoni-simbi rotor: $2,150. Kuputika-uchapupu hwakasimbiswa titanium rotor: $9,800. Nguva yekutungamira: 11 bhizinesi mazuva akajairwa; 4 mazuva kuratidza (neprepayment).
- Mari yakavanzika: Kutsiva kusingaenzaniswi kunokonzera kutadza kubereka nguva isati yakwana mumwedzi 3.2 paavhareji-kuwedzera $1,320 muzvikamu zvisina kurongwa nebasa.
Isu tinoronda ma metrics aya pamakumi mana nemanomwe anoshanda emugodhi makondirakiti. Iyo ROI yeyakarongwa rotor kutsiva maawa gumi nemaviri ega ega? 3.8x kuderedzwa kwekubuda kwemhepo isina kurongwa. Icho hachisi chekuchengetedza - inshuwarisi yekushanda.
Izwi rekupedzisira: Kuchengetedza Kunotanga paRotor
A mine ventilation fan rotor haisi kushandiswa. Ndiyo moyo kinetic yehupenyu hwako-rutsigiro system pasi pevhu. Kuverenga kwese kwekudedera, torque yega yega, giredhi rekuenzanisa riripo nekuti mumwe munhu akambomirira kwenguva refu-uye akabhadhara nemari inopfuura mari. Zibo Hongcheng Fan Co., Ltd. inovaka rotor kune GB/T 1236 uye ISO 5801 zviyero-asi zviyero hazvireve chinhu pasina chirango chekuuraya. Tanga nhasi: dhonza matanda ekudengenyeka kwemwedzi wapera. Kana chero yuniti inoratidza kuverenga katatu kwakatevedzana pamusoro pe3.5 mm/s, rongedza kutsiva izvozvi. Kwete chikamu chinotevera. Kwete mushure mekuongorora kunotevera. Zvino. Nekuti mukufefetedza kwemugodhi, muganho wekukanganisa unoyerwa nemamirimita — nemasekonzi.
