SUBMERGED EXTRACTIVE INSTRUMENT AND METHOD OF ITS OPERATION Russian patent published in 2009 - IPC E21C50/00 

FIELD: mining.

SUBSTANCE: submerged extractive instrument includes bottom mining aggregate, containing taking-out modules, installed by means of force-summing element - frames on durable suction flue, fixed on submerged bearing, and bottom bearing-chair. Taking-out modules are installed on bottom ends of force frames, installed movable around and lengthways durable vertical suction flue, fixed on submerged hydraulic mounting with regulated positive and negative flotation ability. Frames and taking-out modules are connected to drives with ability of movement and turn in vertical plane and stepping turn around vertical suction flue, and also regulated movement and turn of taking-out modules relative to frames. Bottom bearing-chair consists of vertical suction flue with fixed on its bottom end reference element. Operation method of extractive instrument is in development with loosening and raking of solid mass of minerals by means of movement of taking-out modules by developed surface with turn under angle of slope to it. Development is implemented on protected by screen circular surface area. Movements of taking-out modules is implemented in radial directions from suction flue to periphery - at loosening and in opposite direction - at raking into latticed container with simultaneous crushing of solid particles against webbing of its lattice, and with periodic stepping turn of them around suction flue.

EFFECT: increase of effectiveness, reliability and environmental safety of production works implementation.

15 cl, 24 dwg