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I-Pumps Convey Aragonite Slurry 6,000 izinyawo ku-Bahamas Mining Project kaMarcona

Source: Ukwakhiwa Komhlaba Nokwakhiwa Kwasolwandle

Isikhungo sokukhiqiza i-aragonite esiseduze neBimini, iBahamas idinga ukufafazwa kwamaminerali kufakwe emgodini ohlanganisiwe bese kuthi ngokudlulela ngezinyawo ze-6,000 zomugqa kwisitshalo esinamanzi e-Ocean Cay, isiqhingi esiseduze.

The Izimboni zeMarcona Ocean ukusebenza kusebenzisa i-24-inch Ellicott® i-cutter suction dredge "u-Allan Judith". I-dredge ihambisa islurry esikebheni "Guthrie III", lapho kunyathelwa khona nokunyathela ngokweqile, bese ingena ethangini eliqinisa bese ihanjiswa nge-slurry yamaphesenti angama-30 kuye kwangama-35.

I-Aragonite iyindlela ehlanzekile ye-calcium carbonate (CaCO3) encintisana ne-limestone yasekhaya yase-US. Kwenzeka ezigidini zamathani e-Grand Bahamas Bank futhi kwakhiwa ngokuphuma emanzini olwandle. Isetshenziselwa izinhloso ezinjengokukhiqiza usimende, ukwenza ingilazi, ukukhawulwa kwezolimo kanye nokungathathi hlangothi kokungcola kwe-acid yizinkampani zamakhemikhali. Izinto ezibonakalayo zinesakhiwo sokusanhlamvu esingaguquki, esiyindilinga, esincane futhi sincane kakhulu kunensimbi nokunye ukungcola.

UMarcona umba idiphozi elingama-22 amamayela ubude, amamayela amabili ububanzi nama-25 amamitha aminyene kumanzi angajulile eduze kweBimini.

Yenziwe ngamanye ama-cays amabili, noma iziqhingi, kusetshenziswa ama-cutter dredges "Allan Judith" kanye ne "Western Warrior", ukubuyiselwa kwe-Ocean Cay kwathatha unyaka owodwa ukudala amahektare angama-65. Selokhu selandisiwe laba cishe amahektare angama-90. I-Ellicott®  i-brand dredge isebenze ngokuthembekile njengethuluzi eliyimbumbulu lokumba lemayini iminyaka engaphezu kwe-20.

Isitshalo esisebenza esiqhingini siqukethe izihlukanisi zesishingishane i12 kanye nezikrini ze-12 zokudlidliza ezinciphisa okuqukethwe kwamanzi kube ngamaphesenti we-20. I-aragonite iyabe ihanjiswa ngebhande legceke liye kufakwa emaphaketheni wodwa, ewubeka ngaphezulu komhubhe ophilayo ondla ngebhande lokulayisha umkhumbi. Okuqukethwe kulayishwa emikhunjini ngesilinganiso samathani we-3,400 ngehora.

Inkampani isebenzisa umkhumbi wokuzilayisha we-70,000 DWT ukuhambisa izinto eziningi. Lo mkhumbi ungalayisha ngesilinganiso samathani we-4,000 ngehora. Ohambweni olufushane, isikebhe solwandle kanye nemikhumbi yeshaja esetshenziselwa ukuthunyelwa.

IMarcona Ocean Industries inesivumelwano sesikhathi eside nohulumeni waseBahamas sokusebenzisa wonke ama-aragonite nokunye okubalulekile ezindaweni ezine ezinkulu zokufaka imali - iBimini, iJoulter's Cay, uLimi lwase-Ocean kanye neSchooner's Cay. Idiphozi ingamakhilomitha angama-55 empumalanga yeMiami, eFlorida, kanti umkhiqizo uthunyelwa ezimakethe zase-East Coast naseGulf Coast.

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