{"id":3773,"date":"2022-06-02T23:16:33","date_gmt":"2022-06-02T23:16:33","guid":{"rendered":"https:\/\/alimak.com\/se\/project\/mt-isa-mines-svenska\/"},"modified":"2022-06-02T23:21:30","modified_gmt":"2022-06-02T23:21:30","slug":"mt-isa-mines-svenska","status":"publish","type":"project","link":"https:\/\/alimak.com\/se\/project\/mt-isa-mines-svenska\/","title":{"rendered":"Mt Isa gruvor"},"content":{"rendered":"

Alimak arbetar n\u00e4ra Downer EDI f\u00f6r att slutf\u00f6ra demonteringen av en 34 \u00e5r gammal hiss och installationen av en ny Alimak-hiss vid Mt Isa Mines. Med en lyfth\u00f6jd p\u00e5 252m ger Alimak industrihiss kritisk underh\u00e5llstillg\u00e5ng till blysm\u00e4ltverkets skorstensstapel.<\/strong><\/p>

\u00c5TKOMST SKORSTENEN<\/strong><\/p>

Glencore Xstratas Mt Isa Mines \u00e4r en av de st\u00f6rsta gruvverksamheterna i Australien, med en silver-bly-zinkstr\u00f6m som producerar mer \u00e4n 30 000 ton zinkkoncentrat, 170 000 ton r\u00e5bly och 230 ton silverbly i \u00e4delmetaller varje \u00e5r.<\/p>

Gruvans blysm\u00e4ltningsskorsten byggdes 1978 och \u00e4r 270 meter h\u00f6g, vilket g\u00f6r den till Australiens st\u00f6rsta sj\u00e4lvb\u00e4rande struktur. En Electruck Easiriser-hiss installerades ursprungligen i skorstensschaktet, vilket ger tillg\u00e5ng till de sex niv\u00e5erna i skorstensstapeln f\u00f6r inspektion och underh\u00e5ll av strukturens flygplansfyrar. Efter 34 \u00e5rs anv\u00e4ndning avvecklades Electtruck-hissen 2012 och ersattes med en ny Alimak SE 700 industrihiss.<\/p>

DEMONTERING, DEMONTERING OCH INSTALLATION<\/strong><\/p>

Slutf\u00f6randet av projektet skedde i tv\u00e5 steg: det f\u00f6rsta var borttagandet av den ursprungliga Electtruck-hissen och det andra involverade installation och drifts\u00e4ttning av den nya Alimak SE 700.<\/p>

P\u00e5 kundens rekommendation slutf\u00f6rde Downer demonteringen och demonteringen av Electtruck-hissen. Under demonteringen anv\u00e4ndes hisskorgen som en arbetsplattform, vilket gjorde det m\u00f6jligt f\u00f6r Downer-bes\u00e4ttningen att k\u00f6ra hisskorgen till \u00f6nskad h\u00f6jd, demontera 6m sektioner av masten och sedan s\u00e4nka dessa genom hisskorgen till marken under med hj\u00e4lp av en golvmonterad vinschsystem.<\/p>

N\u00e4r borttagningen av Electruck var klar b\u00f6rjade Alimaks tekniker installationen av den nya Alimak SE 700 industrihiss. Installationen skedde ungef\u00e4r p\u00e5 samma s\u00e4tt som demonteringen av Electtrucken, med 9 m l\u00e4ngder av den nya masten vinschad upp genom den nya Alimak SE hisskorgen. Alimaks tekniker anv\u00e4nde taket p\u00e5 den nya hisskorgen som en arbetsplattform f\u00f6r att f\u00e4sta var och en av de nya mastsektionerna p\u00e5 skorstenens befintliga buntst\u00f6d.<\/p>

Med tanke p\u00e5 det begr\u00e4nsade utrymmet i skorstenen var Alimak-hissen den idealiska l\u00f6sningen, eftersom den kunde konfigureras f\u00f6r att passa det befintliga utrymmet med endast mindre modifieringar. Med en lyfth\u00f6jd p\u00e5 252m, med \u00e5tkomst till 5 v\u00e5ningsplan, var nya Alimak SE ett snabbare och mer p\u00e5litligt alternativ till den \u00e5ldrande Electtruck-hissen. Med en hastighet av 1,0 m\/s kommer Alimak-hissen att g\u00f6ra den 252 m l\u00e5nga resan till toppen av skorstenen p\u00e5 under 4,5 minuter, medan den ursprungliga Electtruck-hissen tog n\u00e4stan 7 minuter.<\/p>

TILLG\u00c5NG F\u00d6R KRITISKT UNDERH\u00c5LL OCH INSPEKTIONER<\/strong><\/p>

P\u00e5 grund av h\u00f6jden p\u00e5 skorstenen \u00e4r strukturen f\u00f6rsedd med viktiga varningslampor f\u00f6r flygplan som kr\u00e4ver veckovisa inspektioner och periodiska f\u00f6r\u00e4ndringar. Med majoriteten av fyrarna placerade p\u00e5 taket av skorstensstapeln, kan tekniker resa 252 meter till den \u00f6versta avsatsen i Alimak-hissen. D\u00e4rifr\u00e5n ger en extern stege tillg\u00e5ng till takbelysningssystemen. Utan Alimak-hissen skulle personalen beh\u00f6va kl\u00e4ttra upp i ett internt stegsystem, vilket skulle vara b\u00e5de tidskr\u00e4vande och farligt.<\/p>

ALIMAK P\u00c5 SKORSTEN<\/strong><\/p>

Alimak har slutf\u00f6rt ett flertal installationer p\u00e5 skorstenar runt om i Australien, inklusive Callide Power Station (220m), Kogan Creek Power Station (160m), Tarong Power Station (210m) och Loy Yang Power Station (260m). Alimaks industrihissar med kuggst\u00e5ng \u00e4r den idealiska \u00e5tkomstl\u00f6sningen f\u00f6r kraftverkskonstruktioner, minskar risken f\u00f6r fall fr\u00e5n h\u00f6jd, eliminerar anstr\u00e4ngning fr\u00e5n kl\u00e4ttring och ger enkel \u00e5tkomst f\u00f6r inspektioner, utsl\u00e4pps\u00f6vervakning och underh\u00e5ll.<\/p>

HISSDETALJER<\/strong><\/p>

Plats: Mt Isa Mines, Queensland, Australien<\/p>

Anv\u00e4ndning: Skorstensskorsten<\/p>

Hisstyp: Kuggst\u00e5ng<\/p>

Hissmodell: Alimak SE 700<\/p>

Kapacitet: 700 kg<\/p>

Lyfth\u00f6jd: 252 m<\/p>

GALLERI<\/strong> <\/p>

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