FIELD: mining.
SUBSTANCE: invention refers to mining operations from bottom of seas and oceans, which are mainly represented with horizontal and slightly inclined deposits of small thickness. Concretion development device includes frame, actuating device in the form of chain-and-bucket circuit, delivery slurry pipeline, displacement floats with support elements interacting with hydraulic cylinders, silo with inclined grizzly grate. In rear part of frame there located are displacement floats and support elements in the form of piles which have the possibility of vertical movement, and which also contribute to the frame being turned in horizontal plane. At that, front part of frame is provided with travelling equipment made in the form of wheel pair with individual drive of each one.
EFFECT: providing automatic operating device used under severe mining and hydrogeological conditions, and excavation of concretions with minimum disturbance of the state of bottom sediments.
2 cl, 3 dwg
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