Taw qhia rau Suction Dredgers

Suction dredger yog ib hom kev lag luam nkoj uas siv cov twj tso kua mis rau kev ua haujlwm dredging; lub sij hawm muaj nyob rau hauv thawj tsab ntawm *Terminology ntawm Marine Science thiab Technology*, nrog rau cov lus Askiv sib xws yog "suction dredger" los yog "hydraulic dredger." Cov hlab ntsha no siv centrifugal slurry twj los nqus dej hauv qab dej; siab - cov dav hlau dej siab tau ua haujlwm los tsim cov slurry, uas yog tom qab ntawd thauj los ntawm cov kav dej mus rau thaj chaw xaiv. Cov hom muaj xws li traction suction hopper dredgers, cutter suction dredgers, thiab dav hlau suction dredgers, nrog rau cov nkoj categorized raws li tus kheej -propelled los yog tsis-tus kheej-propelled raws li lawv muaj peev xwm navigation. Vim lawv cov nqi ua haujlwm siab, cov tshuab nqus dej yog tam sim no feem ntau hauv - xav tau hom nkoj hauv kev lag luam dredging.
Cov hlab ntsha no yog siv los ntawm cov cav tov diesel, lub tshuab hluav taws xob, lossis lub zog ntawm ntug dej thiab tuav lawv txoj haujlwm thaum lub sijhawm ua haujlwm siv spuds (pob qhov chaw) lossis thauj tog rau nkoj -kab kab hluav taws xob, muab cov txiaj ntsig zoo ntawm kev txuas ntxiv dredging thiab kev ua haujlwm siab. Hauv cov qauv kev faib tawm, tus kheej- cov qauv ua kom muaj zog yog categorized los ntawm hopper muaj peev xwm, thaum uas tsis yog - tus kheej - cov qauv propelled yog cais los ntawm kev tsim khoom. Lawv tsim nyog rau dredging waterways nrog cov av mos xws li xuab zeb thiab silt, ua tiav high efficiency thaum lub dredging txheej thickness yog tsawg tshaj li 0.7 meters; Qee cov qauv muaj ob qhov kev nqus nqus, tso cai rau qhov dav dav dav kom ntev tshaj 20 meters. Thawj zaug siv nyob rau hauv Mississippi River project hauv 1893, cov qauv siab heev- ua raws li kev ua kom zoo rau lub nozzle configuration thiab suction intake structure- tau ua tiav cov khoom tsim tau txog li 2,500 cubic meters ib teev. Txawm li cas los xij, cov raj xa dej tawm ntawm cov tshuab nqus dej yog luv luv, uas txwv tsis pub xaiv cov chaw pov tseg.