Malo owononga kwambiri chifukwa cha kukhudzidwa kwa nthaka ndi malo a George Fisher Zinc Mine kudera la migodi la Mount Isa ku North Australia. Chotsatira chake, mwiniwake, Xstrata Zinc, wocheperapo wa gulu la migodi la Xstrata Plc., adafuna kuonetsetsa kuti dzimbiri zitetezeke potsekereza anangula pabowo pobowola poyendetsa.
DSI Australia idapereka mankhwala a TB2220T1P10R Posimix Bolts kuti aziyikapo. Mabotiwo ndi atali 2,200mm ndipo m'mimba mwake ndi 20mm. Mu kotala yachinayi ya 2007, DSI Australia idachita mayeso osiyanasiyana mogwirizana ndi Xstrata Zinc pamalopo. Kuyesaku kunachitika kuti apeze kuchuluka kwabwino kwambiri kwa anangula posintha makulidwe a mabowo ndi makatiriji a resin.
Chisankho chikhoza kupangidwa kuchokera ku 1,050mm utomoni wautali wa makatiriji okhala ndi zigawo zonse zapakatikati ndi pang'onopang'ono mu 26mm ndi 30mm diameter. Mukamagwiritsa ntchito katiriji ya 26mm m'miyendo ya 35mm yamtundu wa nangula, kutsekeka kwa 55% kunakwaniritsidwa. Chifukwa chake, mayesero ena awiri adachitidwa.
- Kugwiritsa ntchito katiriji yomweyi ya utomoni ndikuchepetsa m'mimba mwake mpaka 33mm m'mimba mwake kunafikira 80%.
- Kusunga m'mimba mwake 35mm ndi kugwiritsa ntchito katiriji yokulirapo ya utomoni wokhala ndi mainchesi 30 mm kumapangitsa kuti 87% itsekedwe.
Onse mayesero ena akwaniritsa mlingo wa encapsulation chofunika ndi kasitomala. Xstrata Zinc idasankha njira ina 2 chifukwa zobowola 33mm sizikanagwiritsidwanso ntchito chifukwa cha mawonekedwe amwala am'deralo. Kuonjezera apo, mtengo wokwera pang'ono wa makatiriji akuluakulu a resin ndi wochuluka kuposa momwe amagwiritsira ntchito kangapo ka 35mm kubowola.
Chifukwa cha mayeso opambana, DSI Australia idapatsidwa kontrakiti yopereka anangula a Posimix ndi makatiriji a resin 30mm ndi mwini mgodi, Xstrata Zinc.
Nthawi yotumiza: 11 月-04-2024
