SU876870A1 - Apparatus for underwater mining - Google Patents

Description

(54) DEVICE FOR UNDERWATER PRODUCTION

I

The invention relates to the field of deep-sea mining of minerals, such as nodules.

A device for underwater mining is known, comprising a frameless scoop chain with a hydrodynamic diverter mn, in which the scoops are suspended on two slings, long and short, which ensures the installation of scoops at a certain angle of attack, creating a deflecting hydrodynamic force IJ.

The main disadvantage of this device is that both the prn movement of the chain and, being in a state of rest, the branches do not deviate at the bottom and may become entangled, since the force of the scoop on ground forces does not exceed the hydrodynamic values. .

The closest to the proposed technical essence and the achieved result is a device for underwater mining, including endless rope, to which, at certain intervals, scoops are suspended with additional support means on the ground in the form of wheels rotated relative to the longitudinal scoop axis | 2j.

The disadvantages of the device include the fact that the wheels increase the hydraulic resistance of the scoop and the entire device, do not provide a constant width of the plume due to the different filling of the scoops with rock in view of the high speed of movement and heterogeneity of the group. None the same. The width of the plume leads to an unequal width of the bottom development strip, which causes a shortage of mineral resources and a large amount of processing of waste rock.

The purpose of the invention is to increase the efficiency of production by increasing and stabilizing the width of the chain loop.

The goal is achieved by the means for spreading the branches of the chain in the form of at least one platform t5 connected by towing ropes to the vessel, on each of which a ring is fixed for the passage of the scoop chain and resting on the steering wheels turned to the side of both branches. chain through the spring.

FIG. 1 shows a device, side view 20; in fig. 2 - the same in terms of.

Claims (2)

A device for underwater mining includes a surface vessel 1, which is connected by towing ropes 2 and 3 with platforms 4 and 5 located at the bottom. Platforms include rolls 6 and 7, made depending on the type of soil and other working conditions in the form of wheels, discs, tracks, knives, etc. and rotated away from both branches of the scoop chain 8 by springs 9 and 10. On the platforms rings 11 and 12 are installed, through which the scoop chain 8 is passed. Floats 13 and 14 stabilize the position of the platforms and wheels 15 and 16, and also serve to move the platforms along the bottom. The scoop chain includes a loop 17 lying on the bottom, a descending branch 18 and an ascending branch 19. The device for subsea production works as follows. Platforms 4 and 5 with a scoop chain passed by a descending branch 18 through ring AND, and an ascending branch 19 through ring 12 descend from vessel 1 above. Floats 13 and 14 platforms 4 and 5 are always mounted on wheels 15 and 16 and steering wheels 6 and 7 when descending. Then platforms 4 and 5 are towed by ropes 2 and 3 in direction A (the vessel is moving sideways). By turning the rudders 6 and 7, which rest on the ground (earthen rudders) of platforms 4 and 5, diverge in different directions, increasing the width of the slot 17 and moving the branches 18 and 19. When platforms 4 and 5 disperse so that the forces from the tow ropes 2 and 3 will create a pivotal moment more than that arising from springs 9 and 10, then the rudders will turn along the movement and the separation of the branches 18 and 19 will cease. Since the scoop chain 8 freely passes through the rings I and 12, the digging force is small on the platforms 4 and 5. As a result of the lack of influence of the digging force on the platforms 4 and 5 and the low speeds of their movement, the plume will be kept approximately constant. After the end of the ship’s move in the direction, the movement in the opposite direction (also sideways) will continue. At the same time, when the ship passes over platforms 4 and 5 and begins to pull towing ropes 2 and 3 in the opposite direction, platforms 4 and 5, together with handlebars B and 7, will rotate around the axis of the wheels 15 and 16 and take a new position. After this maneuver, the device with eyeliner mining works the same way as ofmcawo was higher, but only in the opposite direction. Claim 1. A device for underwater mining, including a vessel, a scoop chain mounted on it, a towing cable and a means for separating the branches of the chain, characterized in that, in order to increase production efficiency by increasing and stabilizing the width of the chain loop, the means for divorcing The branches of the chain are made in the form of at least an open llatform connected by a towing cable to a vessel, each platform having a ring mounted on it for the passage of a scoop chain and steering wheels with springs. 2. The device according to claim. Distinguishing the fact that the rudders are turned away from the branches of the chain with springs. Sources of information taken into account in the examination 1. Reports of the 2nd International Colloquium on the problems of using the resources of the world ocean. France, Bordeaux, 1974. 2.Nurok, A.A., and others. Minerals technologists from the bottom of lakes, seas and oceans. M., “Nedra, J979, p. 202 (prototype). 1