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ʻO ka hoʻoponopono ʻana i nāailele kala me Ellicott 370 Dragon® Dredge

LEPUBALIKA DOMINIKA - Ka mōʻaukala, nā kaʻina hana mining me nā helu uku hoʻōla maikaʻi ʻole i hopena i nā huelo me nā nui o nā mea i hiki ke loaʻa Hiki ke hoʻokō ʻia ka unuhi ʻana o kēia mea me ka hoʻohana ʻana i nā dredges.

Aia kekahi mau mea e hōʻoia ai i ka hoʻopili a me ka hana hou ʻana o nā lei.

    • Pono i nā hiehie nā kumu waiwai liʻiliʻi ke hoʻohālikelike ʻia i ka mining maʻamau. ʻO kahi laʻana, hiki i kahi dredge - i kahi ʻanuʻu hoʻokahi - lawe a lawe i nā mea i kahi mea kanu hana aia ma ʻelima mau kilomita ka mamao. Hoʻoemi kēia i nā kumukūʻai e pili ana i nā lako pono, nā hana, nā wahie, a me ka mālama ʻana.
    • Ke holomua i ka ʻenehana hana hou
    • Hoʻoponopono i ka hana ʻana no ka hana hoʻomohala hou no ka hoʻonui ʻana i ka wāwae wāwae a me ka ʻole e koi aku i nā palapala ʻokoʻa.

Las Lagunas, Pueblo Viejo Tailings Dam
Aia ka papahana ma Dominican Republic, 105km ʻākau o Santo Domingo. ʻO ka mea nona ka papahana ʻo Panterra Gold / Envirogold o Australia. Ua hoʻokumu ʻia nā huina gula a me nā kālā mai nā hana mining maʻamau ma waena o 1992 a me 1999. Ua maikaʻi ʻole ka loaʻa hou ʻana o ka hana mining (<30%) a ua waiho ʻia ka nui o nā ore i loko o ka dam. Loaʻa i ka dam ka 5,137 miliona metric tonnes o nā ore, e helu ana i ke gula 3.8 g / t a me 38.6 g / t kālā.

I ka 2012, ua kūʻai ʻo Envirogold i hoʻokahi Ellicott 370 Aliʻi® kalaiwa i ka hoʻopaʻa ʻana i ka huelo mai ka poʻokela a pākuʻi iā lākou i kā lākou hana hoʻoulu.

Hoʻohana ʻia ka dredge e lawe i ka waiwai o ka hohonu a hiki i 8m a hoʻomake iā lākou e like me ka slurry kahi mamao ma waena o 500m a me 800m a me kahi pahu kiʻekiʻe o 11m. Hoʻomaʻa ʻia ka slurry e hoʻohana ana i kahi paena HDPE 10-inch. Hoʻolaha ka dredge a pana i ka slurry me kahi pānaʻi 28%. Loaʻa nā ʻili i kahi mea Gravity Poma o 2.69 a me kahi pālolo wahine ikaika o 1.71t / m3.

I mea e hoʻonui ai i ka hana hana a hāʻawi mau i ke kūpono aʻe i ka hana, kūʻai ʻia ʻo Envirogold i kekona 370 dredge mai Ellicott® ma 2013.

Ke hoʻolako nei ka dredges i kēia manawa e hoʻolako i ka 24 hola i kēlā me kēia lā kanu hānai, nā lewa hou e hoʻokō ai i ka hana ʻana, me kahi pūʻulu o kahi (1) pākahi i ka dredge a me ʻelua mau mea kōkua (2) i kēlā me kēia hoʻololi.

I mea e hoʻopiʻi pono ai i nā hana a me ka wai mai ka hana dredging, ua hoʻokaʻawale ʻia ka pōpoki i nā ʻāpana liʻiliʻi i kapa ʻia ʻo ia he mau loko wai. Kahi ʻia ka ʻāpana o ka wahiʻu i hoʻokaʻawale ʻia, hana ʻia ka hana ʻole e hoʻokaʻawale i ke kāʻei hoʻihoʻi mai ka mea kanu, pēlā ka mālama ʻana i ka wāwae o ka dam. Hoʻohana ka hana dredge i ka wai i loaʻa ma ka ʻāpana. Hoʻopili hou ʻia ka wai wai i loko o ka wai i lalo o ka wai kuʻuna a ʻaʻohe pono nā wai hou.

I nā mahina ʻekolu o 2013, ua lawe ka pipi mua a kāomi kahe i ka 80,000 m3 o nā huelo i ka mea hoʻoili.

ʻO ka Ellicott Series 370 standard dredge kahi dredge ʻoki ʻoki diesel-Powered me kahi pauma 12 ″ x10 and a me 440 HP o ka mana i hoʻonoho ʻia. He mana ikaika loa ia, hilinaʻi a lawe ʻia hoʻi no kēia ʻano noi. Hāʻawi ʻia ka ʻāpana mua me kahi mea ʻoki kuʻuna, ʻoiai ka lua o ka anakahi i loaʻa kahi mea ʻokiʻoki pākeke

Ma o kahi kuikahi hana kūikawā, ua hoʻohana ka poʻe loea ʻo Ellicott Field Service i nā mea kanu ʻelua no ka manawa o 3 mau mahina ma 2014. Mālama kēia lawelawe i ka mea kūʻai aku e hoʻonui i ka hana o nā dredges a hoʻomaʻamaʻa i kāna mau mea hana i ka hana hoʻokō maikaʻi.

ʻO nā mākeke a me nā ʻenehana hana hou e hana hou ai i ka hana hou o nā kauka me ka nani. Ma muli o kona hiki ke hoʻōla pono i ka nui o nā waihona a lawe aku iā lākou me ka ʻole e pono ke pālua, ka ʻōheu kahi mea hana kūpono no kēia mau hana. Me nā makahikiʻoi aku o 125 ka hoʻolālā ʻana a me ka hana ʻana i ka pono kiʻekiʻe, ikaika a me nā kikowaena hilinaʻi maikaʻi loa, ʻo Ellicott Dredges kahi hopena kūpono!

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