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Rotary table (#20) rotates, along with its constituent parts, the kelly and kelly bushing, the drill string and the attached tools and bit. Shale shaker (#2) separates drill cuttings from the drilling fluid before it is pumped back down the wellbore. Stand (#16) is a section of 2 or 3 joints of drill pipe connected and stood upright in the ...
A bucket wheel excavator (BWE) consists of a superstructure to which several more components are fixed. The bucket wheel from which the machines get their name is a large, round wheel with a configuration of scoops which is fixed to a boom and is capable of rotating. Material picked up by the cutting wheel is transferred back along the boom.
In 1941, Ellicott Dredges also built the dredge MINDI, a 10,000 HP, 28-inch cutter suction dredge still operating in the Panama Canal. Currently, Ellicott has sold over 1,500 dredges to 80 different countries. Their cutter dredges can be used for a variety of applications including coastal protection, sand mining, and land reclamation.
The dredge valve’s gate is hydraulically control and it has raised a lot of challenges because of maintaining it clean. The gate can be blocked by the sand that enters through the dredge valve causing a lot of damages. Because of this reason the dredge valve has a lot of water flushing canals in order to keep it clean.
DCI Dredge XV (ship, 1999) (IMO 9164122) at Visakhapatnam, India The dredge drag head of a suction dredge barge on the Vistula River, Warsaw, Poland Trailing suction hopper dredger in action in 1987, Beaufort Sea near Tuktoyaktuk
A grab dredge. Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing dams, dikes, and other controls for streams and shorelines; and recovering valuable mineral deposits or marine life having commercial value.
It is a type of suction dredge. A water dredge or water eductor may be used for the same purpose. [1] Typically, the airlift is constructed from a 3-metre to 10 metre long, 10 cm diameter pipe. A controllable compressed air supply vents into the inside, lower end of the pipe (The input end always being the lower end).
The mine's Quincy Dredge Number One sank in 1956, and Dredge Number Two was used until 1967, [2] when it too sank during a winter lay-up. [4] By this time, copper prices had fallen low enough that the reclamation process was not profitable, and the Quincy Mine abandoned both the dredge and its reclamation facility.