SU916670A1 - Apparatus for underwater mining work - Google Patents

Description

The invention relates to mining and can be used for the development of sand deposits, washing reservoirs, when cleaning the sludge settling tanks, production sites of grinding departments flotation, when cleaning thickeners during their 'landing ¹ ' and repulpation, as well as ponds, lakes, canals and river beds .

A device for underwater mining operations is known, which contains a floating pontoon, a compressor, which injects compressed air through a pipeline into a pump head, in which an er ’elevator G1 is installed].

A disadvantage of the known device is the destruction of soils by one-sidedly directed water jets, and their removal is carried out by pumping or more efficient air-lift devices.

Also known are devices including an air duct with an Injector,

2

water supply and soil lifting pipes [2].

The disadvantage of these devices is low efficiency in development. ke compacted rocks.

The purpose of the invention is to increase the efficiency of development of compacted rocks.

This goal is achieved by the fact that in the device for underwater mountain halter, including an air pipe with a nozzle, a water supply and soil lifting pipes, the water supply pipe is equipped with a mechanism for the formation and rotation of water jets and is installed inside the soil lifting pipe.

In addition, the mechanism of formation and rotation of water jets is made in the form of a disk rotor mounted on the drive shaft with holes.

The drawing shows the device section.

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The device for underwater mining consists of a soil lifting pipe 1, a power supply pipe 2, into which is placed the mechanism 3 of formation and rotation of water jets, performed in the form of a disk rotor with holes 4,

In addition, the device includes a drive shaft 5 with an electric motor 6 and a V-belt drive 7, an air duct 8, a nozzle 9 with an air diffuser nozzle 10, and a discharge slurry pipe 11.

The device works as follows. 15

During the rotation of the shaft 5, the torque through the rotor 3 is transmitted to the jets of water, which maintain the velocity head and pressure. At the same time the air pipe 8 by _WHO-20 supplied to the nozzle 9 spirit · The air passing through the nozzle-vozduhorassekatel 10 is dispersed.

Rotating jets of water and air jets 25 moving towards them at an angle intersect in the surface layer of sediments and erode them, forming a mixture of solid components — an air-pulp mixture, which due to the pressure difference inside the pipe 1 and outside it

rises along the inter-tube pipe and the slurry pipeline 11 into the sump of the conveying pump and further for processing.

According to its intended purpose, the proposed ₃₅ device can have various designs. In particular, for mining compacted rocks, it can be performed in a high-pressure wa0 4

The riant supplies high-pressure water jets with pressures up to 10 atm, but significantly smaller volumes of air sufficient for bubbling, weighing and air-lift movement of sands being destroyed by water into the processing zone.

For cleaning sand deposits of technological devices, the proposed device may have a lightweight nizkonaporny execution.

The introduction of the proposed device will improve the efficiency of the development of compacted rocks *.

Claims (2)

Claim 1. A device for underwater mining, including an air duct with a nozzle, a water supply and a ground lifting pipe, characterized in that, in order to increase the development efficiency of compacted rocks, the water supply pipe is equipped with a mechanism for the formation and rotation of water jets and is installed inside the soil lifting pipe. 2. The device according to claim 1, characterized in that the mechanism for the formation and rotation of water jets I is made in the form of a disk rotor with holes mounted on the drive shaft.