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Jerin 370 Dragon® Dredge

Sauya kayan ma'adinai (Zinare da Azurfa) tare da Ellicott Dredges

DOMINICAN REPUBLIC - Tarihi, hanyoyin hakar ma'adinai tare da ƙarancin farfadowa sun haifar da hakan wutsiya mai mahimmanci tare da mahimmancin kayan da ake iya murmurewa. Haɓakar wannan kayan ana iya cimma shi ta amfani da dredges.

Akwai dalilai da yawa waɗanda ke ba da hujja hakar da sake sarrafa wutsiya:

  • Tailings yana buƙatar ƙananan albarkatu idan aka kwatanta da ma'adinai na al'ada. Misali, bakin ruwa zai iya - a mataki daya - cirewa da jigilar kayan zuwa injin sarrafa shi wanda yake nesa da nisan kilomita daya. Wannan yana rage farashin da ya danganci kayan masarufi, aiki, man fetur da kuma kulawa.
  • Ci gaba a cikin fasahar sarrafawa
  • Yin sarrafa ta ta bada damar ƙarin samarwa ba tare da ƙara ƙafafun ƙafa ba kuma ba tare da buƙatar ƙarin izinin ƙasa ba.

 Las Lagunas, Dam Pueblo Viejo Tailings Dam

Aikin yana cikin Jamhuriyar Dominica, kilomita 105 daga arewacin Santo Domingo. Mai aikin shine Panterra Gold / Envirogold na Ostiraliya. An samar da wutsiyar zinare da azurfa daga ayyukan hakar ma'adinai na al'ada tsakanin 1992 da 1999. Abubuwan da aka dawo da su na asali ba su da kyau (<30%) kuma an sanya ma'adanai masu yawa a cikin madatsar. Dam din yana da kimanin metric tan miliyan 5,137 na karafa, wanda ya kai gwal 3.8 g / t da kuma 38.6 g / t azurfa.

A cikin 2012, Envirogold ya sayi ma'aunin Ellicott 370 guda ɗaya don cire wutsiya daga madatsar ruwa kuma ya tura su zuwa ga aikin sarrafa su.

dredger-Dominican-Republic-Gwanin-Tailings-370HP-01-1

Anyi amfani da dredge din ne dan zakulo kayan daga zurfin har zuwa 8m kuma a turo su kamar yadda nisan dake tsakanin 500m zuwa 800m da kuma tashar hawa mai hawa 11m. Ana yin famfo slurry ta amfani da bututun HDPE mai inci 10. Dredge yana haifar da pumps slurry tare da ƙimar 28%. Jigon wutsiya suna da Nauyin Nauyin Nauyin Nau'in 2.69 da kuma yawan jike mai yawa na 1.71t / m3.

Don haɓaka ƙarfin samarwa da kuma samar da ƙarin sassauci ga aikin, Envirogold ya saya na biyu 370 dredge daga Ellicott a cikin 2013.

Dredges a halin yanzu suna aiki don samar da saurin 24 a kowace rana don ciyar da shuka, madadin dredges don cimma nasarar samarwa, tare da ma'aikatan jirgin guda (1) na kowane dredge da mataimakan guda biyu (2) a kowane juyi.

dredger-Dominican-Republic-Gwanin-Tailings-370HP-02-1

Don kyakkyawan sarrafa abubuwa da ruwa daga aikin haƙa, an raba dam ɗin zuwa ƙananan ƙananan sassan da aka sani da tafkunan ruwa. Da zarar an lalata wani ɓangare na madatsar, sai a yi amfani da gurɓataccen abin da aka ƙirƙira don sake sanya wutsiyar da aka sarrafa daga shuka, don haka a kiyaye sawun dam ɗin. Aikin rami ya yi amfani da ruwan da ke cikin madatsar ruwan. An sake zagaya ruwan dredging din zuwa ramin dredging don haka ba a buƙatar ƙarin ruwa.

A cikin farkon watanni uku na 2013, dredge na farko an cire shi kuma ya tsoma kamar 80,000 m3 na wutsiya zuwa ga shuka aiki.

The Ellicott Series 370 daidaitaccen dredge Dredge ne mai ɗauke da dizal mai jan wuta tare da famfo 12 10 x440 ″ da XNUMX HP na ƙarfin shigar duka. Abu ne mai matukar ƙarfi, abin dogaro kuma mai ɗauke da madaidaiciyar manufa don wannan nau'in aikace-aikacen. An kawo sashin farko da abun yanka na yau da kullun, yayin da na biyu ya hada da mai yankan guga.

dredger-Dominican-Republic-Gwanin-Tailings-370HP-03-1

Ta hanyar kwangila na ayyuka na musamman, masu fasaha na sabis na Ellicott Field sunyi aiki da dredges guda biyu na tsawon watanni na 3 a cikin 2014. Wannan sabis ɗin ya ba abokin ciniki damar iyaƙatar samar da dredges tare da horar da masu aikinta akan ingantattun ayyukan dredging.

Kasuwa da dabarun kere kere sun sa aikin sake sarrafa wutsiya ya zama da kyau. Saboda ƙarfinsa don amintar da ɗimbin kayan da jigilar su ba tare da buƙatar ninkawa ba, raguwa shine mafi kyawun aikin waɗannan ayyukan. Tare da fiye da shekaru 125 na ƙirar ƙira da ƙera mafi ƙarancin inganci, mafi ƙarfi da abin dogaro na ruwa, Ellicott Dredges shine madaidaicin mafita!

Labaran Labarai da Nazari