Umthombo: Ukucubungula Amakhemikhali Ukuvikelwa koMfula iShenandoah kanye nokubuyiswa kabusha kwe-zinc hydroxide eyigugu konke kuzuzwe ngu-Avtex Fibers, umkhiqizi omkhulu kunabo bonke ezweni wemicu ye-rayon, ngokusebenzisa isikhuphuli sento ephathekayo. Sekuyiminyaka u-Avtex efake i-zinc hydroxide, okuwumphumela wenqubo yabo yokukhiqiza, ekuxazululeni amachibi azungeze lesi sitshalo. Amachibi ahlala endaweni yase-Avtex's Front Royal plant eVirginia ngokuzumayo aqala ukugcwala udaka nodaka - indle eyigugu - ngoba kwatholakala ukuthi uma i-zinc hydroxide ingabuyiswa ingacutshungulwa ibe yi-zinc sulfate ewusizo ....Qhubeka Reading

Umnikazi - Mineracao Taboca, eBrazil IMINININGWANE EYINQUBO: IMINININGWANE EYINQUBO: “Stelinha V” “Stelinha VI” “B890E” Usayizi weHull - ubude obuyizinyawo 110 ′ 81 ′ 56 Ubuningi Bokumba Okujulile 36 ′ 26 ′ 21 ′ Suction Pipe Size - ID 16 ″ 14 ″ 10 ″ Usayizi wepayipi Lokukhishwa - ID 16 ″ 14 ″ 10 ″ Dredge Pump Horsepower ngisebenza emayini yensimbi ecebe kakhulu emhlabeni osentshonalanga ePitinga, esigodini sase-Amazon saseBrazil. Kutholakala ngaphezu kwamakhilomitha angama-500 enyakatho-mpumalanga yoMfula i-Amazon ...Qhubeka Reading

Umthombo: I-World Dredging Mining & Construction Eminyakeni edlule sekwenziwe izinhlobo ezahlukahlukene zokuhlolwa komzimba ukuvumela izinhlangano ezingaba khona zezimayini zegolide ukuthi zihlaziye izici ezahlukahlukene zezindawo zemayini ezihlosiwe. Lokhu kuhlolwa kuyahluka ngokuya ngendlela ehlosiwe yokukhipha. Endabeni yama-dredges, ikakhulukazi ama-excavator afakwe ama-dredges, izivivinyo ezilandelayo zokuhlola ziyadingeka: Ijika eligcwele le-granularmetric elimele wonke umzimba we-ore liyadingeka, ikakhulukazi uma umzimba ungaqukatha izinto ezingaphezulu kwamandla we-dredge ukumbiwa noma ukuhanjiswa. Ukwenza imininingwane igculise ukwethula lokhu ...Qhubeka Reading

Umthombo: I-World Dredging Mining & Construction Esifundeni esiqhelile enyakatho-ntshonalanga yeChina, ukumbiwa kasawoti oqukethe iMirabilite kwaqala ngo-1958, kusekela idolobhana elincane. Isitshalo Samakhemikhali iXingjiang Salt Lake, esifundazweni saseChina iXingjiang, sitholakala cishe ku-70 km empumalanga yedolobha i-Urumqi. Izimayini zenziwa ekuqaleni ngama-backhoes futhi zondla indawo yokulungisa encane. Ngaphezu kweMirabilite, kukhishwa amanye usawoti futhi asetshenziswe embonini yezentengiselwano yaseChina. Ngama-1980s imboni yokwemba kabusha yayiqala ukuthola isikhundla ekunikezeleni ngamachibi wokudonswa kwamabhakede embonini yezimayini. Maphakathi nawo-1980, ngosizo ...Qhubeka Reading

I-Ellicott® International ithengise ibredwheel dredge enkampanini yaseBrazil ngokumbiwa kwegolide e-Amazon. IMineracao Trans Amazonica (MTA) ibeke i-Ellicott® Brand B890 "Wheel-Dragon ™" dredge in service near the Paru River entshonalanga yeJari eduze naseMonte Dorado, eBrazil.Qhubeka Reading

Izimbiwa ezisindayo zenziwa ngezigaba eziningana noma ukulandelana kokusebenza. Lezi zigaba zichazwe ngezansi ngokulandelana kokuvela. Ukuhlanza Ekuqaleni, zonke izingodo ezingathengiswa zivunwa kusuka endaweni yezimayini eseduze. Iziqu, izihlahla ezingaphansi kwaso kanye namabhulashi asele ayaqoqwa bese ehlanganiswa ngogandaganda abakhasa. Lokhu okusetshenziswayo kuvunyelwe ukoma futhi kamuva kushiswe. I-topsoil iyabe isisuswa ekujuleni kuka-6-8 kuyo bese ifakwa endaweni yokugcina yediphozithiva kamuva noma ibekwe ngqo kumgodi oseduze wezokumbiwa. Lo msebenzi wenziwa nge-23-yd3 pan-drive yama-wheel-drive amane. Dredging I-ore ivalwe ngo-Ellicott ® eyenziwe ngokwezifiso ...Qhubeka Reading

Umthombo: I-World Dredging & Marine Construction Ellicott® brand-hydraulic ipayipi cutterhead dredges isetshenziswa ngokuya kakhulu ezimayini nasekuhlanganisweni kwemisebenzi kusuka kwamalahle kuye kumathini kuya kokuhlanganisiwe. Ukubuyiswa Kwamalahle Ezinkundleni zamalahle empumalanga yePennsylvania, izinhlawulo zamalahle ezake zacatshangelwa ukuthi azinakusiza ekutholakaleni zatholwa yi-Ellicott® brand suction cutterhead dredge. Ngenxa yokusebenza, kuze kufinyelele ezimotweni zikaloliwe ezingafika ku-30, kutholakale usuku lwamalahle, okwenza inkampani ephehla ugesi ibe namandla okuthola uphethiloli wezindleko eziphansi kulowo ophehla ugesi wayo. I-dredge isebenze kusuka ekusikeni okungaphezu kwamamitha ayi-185 ukujula lapho bekucatshangelwa ukuthi ...Qhubeka Reading

Umthombo: I-Highway & Heavy Construction Magazine Ama-dredges amabili amakhulu we-hydraulic, ahlanganiswe namayunithi amancane antantayo kanye nama-dragline asogwini, alinganiselwa ku-60,000 cu.yd. yokwehla ngosuku ngenkathi kusulwa ngokushesha amamayela amane oMfula iCowlitz ogcwele umlotha kulandela ukuqhuma kweMt. ISt. Helens. Kepha ukuqaqa ama-dredges amakhulu, ukuwathutha nokuwahlanganisa kabusha nokuwaqalisa kuthathe amasonto amahlanu. ICanonie-Bultema Pacific Corp., inkampani ephethwe yiThe Canonie Companies, Inc., eSouth Haven, eMichigan, isebenzise indlela esekwe olwandle ngenkathi isula cishe u-4.4 million cu.yd. yenhlabathi enesihlabathi evela eMfuleni iCowlitz ngaphansi kwezinkontileka ezimbili zokubuyela emuva kweCorps of Engineers. Izinkontileka bezi ...Qhubeka Reading

Umthombo: Imayini yomgodi ovulekile wethusi wase-Asia Pacific Mining Marcopper itholakala eduze kwesikhungo sendawo yesiqhingi saseMarinduque esiqhingini sasePhilippines. Isiqhingi esingamakhilomitha-skwele angama-780 singamakhilomitha ayi-170 eningizimu yeManila. (IMarcopper kuze kube muva nje iyinkampani ephethwe yiPlacer Dome.) IMarcopper Mining Corporation yathunyelwa ngomthamo olinganisiwe wamathani angu-15000 ngosuku. Izimbumbulu zemfucumfucu zalahlwa esigodini esiseduze saseSan Antonio amakhilomitha ama-4 ukusuka kusixhumi. Kwakhiwa amadamu amabili nge-laterite ehlanganisiwe emikhawulweni yomibili yesigodi ukwakha ukubanjwa noma umcengezi. Ingxenye eyinhloko ye ...Qhubeka Reading

Umthombo: Imininingwane Yokwakhiwa Kwamazwe Ngamazwe Nokwakhiwa Kwembobo Imininingwane ye- "COOLJARLOO I" Ukumba ukujula max 25 m, min 4.6 m Dredge pump Ellicott® 24 in. Pump pump powerpower 2,000 HP (1491 KW) Isisindo esomile cishe ama-2,700 tons Amandla we-Shore 22,000V / 3-ph / 6047 Suction pipe diameter 23.52 in. Discharge pipe pipe 23.62 in. Ingqikithi yamandla afakiwe 4,100 hp (3057 KW) i-Ellicott Machine Cooperation yaseBaltimore, eMaryland iphothule iphrojekthi ye-turnkey yokuklama nokwakha okukholakala ukuthi yiyona enkulu kunazo zonke emhlabeni- okwemba amaminerali esihlabathi njalo. UChristened "COOLJARLOO I", i-duckger yebhakede lakhelwe izimayini ezisindayo zezimayini eNtshonalanga Australia. Futhi ngokuphelele ...Qhubeka Reading