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Gishirin “Namomin kaza” Zarewa a cikin Tekun Gishiri

Source: Ma'adinai & Ginin Dredging na Duniya

Tekun Gishiri yana gefen kudu na Kogin Urdun. Tekun Gishiri da gabar da ke kewaye da ita sune mafi ƙasƙanci a duniya - mita 400 ƙasa da matakin teku. Sunan "Matattu" an ba shi wannan jikin ruwa ne saboda yawan ma'adanai da ƙarancin iskar oxygen. Wannan haɗin yana hana kowane irin nau'in rayuwa ya wanzu a wannan yankin.

Isra'ilawa suna aiki ta hanyar Matattu Kayan Aiki (DSW), wani kaso na 90 bisa dari na Israel Chemical Ltd. (ICL).

Ana gudanar da aikin Jordan ta Kamfanin Arab Potash (APC), wanda mallakar gamayyar gwamnatocin Gabas ta Tsakiya, musamman Jordan. Yawan shekara-shekara da DSW ke samar da dankalin turawa ya kai kimanin tan miliyan 2.2.

Aikin samar da ma'adanai (galibi potash, wanda ake amfani da shi don noman gona), ya danganta ne da tsinkayen ma'adanai a gindinann magudanar da mutum ya lalace, rarar ma'adanai da yawa, abubuwan da suka dace auger da sarrafa shi cikin kyau. abu. Wani muhimmin sashi na aiwatar shine rage haɓakar gishirin tebur (NaCl) a ƙarshen ƙarshen tafkunan. Sabili da haka, kashi na farko na aiki shine ke malalo ruwan daga cikin teku zuwa cikin tafkin kilogram na 80 sq. A cikin wannan tafkin, brine, tare da ƙaramin abun ciki na NaCl ana tsoma shi cikin tafkunan ƙarshe na samar da kayayyaki.

A tsakiyar '80s an lura da wani abu na halitta a cikin kandamin roba. NaCl ya fara daɗaɗa a cikin sifofin "namomin kaza" a sassa daban-daban na tafkin. Ginshikan gishiri sun fara girma daga zurfin zurfin ƙasa. Da zarar sun isa saman, sai suka fara girma cikin hanzari a gefuna, wanda ya samar da wani nau'i wanda yayi kama da naman kaza. Wadannan namomin kaza sun iyakance yanayin fili da karfin danshi na kududdufin. Mutanen DSW sun fara neman mafita ga wannan matsala a matakai biyu: akan matakin kimiyya don dalilin abin da ya faru, kuma ta hanyar fasaha yadda za a cire naman kaza.

A wannan lokacin wata ƙungiyar Oceana Marine Ltd. suna cikin ginin masana'antar DSW tare da girka ingantaccen sarrafawa da tsarin kewayawa don masu siyar da gas ɗin na DSW. Ganin matsalar naman kaza, sarrafa Oceana ya yanke shawarar bincika yiwuwar ingantaccen, kayan aikin injin da zasu iya cire tushen gishirin mai ƙarfi.

Bayan gudanar da bincike na farko, Oceana ya gayyaci masana'antun da ke cikin dajin don su gwada matsalar kuma su ba da mafita. Ellicott® International na Baltimore, Maryland ta bincika shafin kuma an nemi ta ba da "garantin aiki."

Oceana management yanke shawarar cewa Ellicott® kayan aiki iri ne suka fi dacewa da aikin. Dalilan wannan kuwa sune:

  • Kwarewa a cikin dredging abu mai wuya.
  • Ellicott® International na Baltimore, Maryland ta amince da samar da “garantin aiki” don tabbatar da kayan aikin su na iya hakar rijiyoyin naman kaza yadda ya kamata.
  • Kamfanin yana da damar ginawa da jigilar kayan da ya dace tsakanin watanni shida.

Oceana aka zaɓi (tare da yarda da DSW) Ellicott® alama B890 bagwheel dredge, gyara tare da radiators na musamman da sauran kayan aiki don aikin. Dredge yana da excavator na duwatsun 100 HP, jigilar jigilar kaya, da injunan CAT.

An sanya hannu kan kwangilar aikin matukin jirgin tsakanin DSW da Elliana (wani kamfani ne mai hadin gwiwa wanda aka kafa tsakanin Ellicott® da Oceana.) Yankin aikin ya kasance ya raba tashoshi shida na tsawon tsawon 23km, 50m, ta hanyar wuraren da aka fi mayar da hankali da shi (yadudduka kashi 30-40.) Sakamakon aikin matukin jirgin ya tabbatar da iyawar dredge don aiwatar da aikin. . Yayin wannan aikin, Elliana ta kashe lokaci mai yawa a cikin shirin.

Tsarin gishirin yana da matukar wahala, yana da kusan 3,000 psi da matsakaita na psi 1,500. Elliana ya ci gaba tare da haɓakawa ga zane-zanen dredge na gaba. A lokacin 1990, DSW ta fara karɓar takaddama daga kamfanonin haƙo duwatsu a duniya don share fili na kilomita 30. An ba wa kamfanonin Isra’ila biyu kwangilar shekaru uku. Oceana ta fara aiki a 2. A wannan matakin ne Ellicott® International of Baltimore, Maryland ta yanke shawarar janyewa daga haɗin gwiwar don hana yin gasa tare da abokan cinikin.

Oceana ta sayi Ellicott biyu® alama B890 dredges daga Marcopper Mining Corporation a cikin Philippines. Oceana ta sake ginawa da kuma gyara ramuka don dacewa da bukatun aikin. Ingantawa ya haɗa da faɗaɗa ƙusoshin don ba da damar faɗaɗa faɗi a kan matsayin madaidaicin.

Ellicott® Kasa da kasa ta samar da wasu sabbin kararraki guda biyu don tsoffin jiragen ruwa na shekaru goma, wadanda aka fara dasu da fasalin dabaran daya, kuma aka sake gina bututun ruwa da injuna.

Yawan kayan aikin Oceana tare da dredges na bucketwheel ya ninka kashi 35 cikin XNUMX fiye da sauran ramuka masu aiki akan aikin. Har yanzu aikin yana gudana tare da Ellicott® alama iri.

 

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