1/20/2024 0 Comments To dredge synonymSeagoing dredges are designed for working placer and sedimentary deposits lying in offshore waters and in deep-water areas of large lakes, seas, and oceans. The former (for working placers on land), as a rule, are mounted on a flat-bottomed pontoon (ship), which ensures normal flotation and operation on a closed body of water, in accordance with the requirements of the River Register of the RSFSR. Dredges are used mainly in working alluvial and eluvial-deluvial placers, as well as offshore and coastal placers, with the exception of boulder varieties, which are strongly cemented by rocks and viscous clays.ĭredges are divided into two categories, continental and seagoing. Specific gravity exceeding 3 (gold, platinum, tin, diamonds, and so on). Rated power of electric motors (kW).ĭisplacement under operating conditiosn (tons). Underwater excavation depth (m).Īverage productivity (m 3/hr). Main technical features of Soviet-produced multiple-scoop dredges (1970) A floating ore-concentration installation with equipment designed for the working of submerged mineral deposits and for the extraction of valuable components with a Table 1.
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