Source: https://russianpatents.com/patent/236/2362015.html
Timestamp: 2019-08-25 03:43:57
Document Index: 515569059

Matched Legal Cases: ['art 4', 'art 4', 'art 6', 'art 4', 'art 4', 'art 4', 'art 4', 'art 6', 'art 4', 'art 4', 'art 4', 'art 4', 'art 4']

Facility for borehole hydraulic excavation of minerals
The invention relates to mining and is intended to develop a method of hydraulic borehole mining is a powerful deep-seated deposits of loose samoobuchayuschimsya or pre-collapsed minerals.
A device for hydraulic borehole mining (HBM) minerals containing internal moving pressure column with a jetting nozzle, external polipovidnye tube with telescopic lower part with an intake opening connected to the discharge column, and the jetting nozzle is made lateral to the axis perpendicular to the axis of the pressure of the column (see patent RF №2181434, CL IS 45/00, publ. 27.12.2000).
A disadvantage of the known device is its low efficiency in the development of loose samoobuchayuschimsya minerals heavy minerals due to poor grindability of the rock mass side nozzle and zabyvaemo lump material located below the intake holes.
A device for the SRS, including internal moving pressure column with a jet nozzle at one end, external polipovidnye tube with telescopic lower part with the receiving hole, which is connected with the pressure column, and a telescopic lower part polipovidnami pipes are rigidly connected to the pressure column, and a receiving hole installations is but from a jet nozzle at a distance of not less than a certain value (see RF patent №2278975, CL IS 45/00, publ. 2006).
The drawback of the device, taken as a prototype, is the low efficiency of reception of the pulp. In the process, the pulp density near the inlet opening is changed, which leads to fluctuations in the performance of the device.
The objective of the invention is to create a reliable and efficient device for hydraulic borehole mining loose samoobuchayuschimsya or pre-collapsed minerals heavy minerals from the powerful deep-seated deposits, due to the stable position of the inlet opening polipovidnami pipe in the zone of optimum density of the pulp.
This object is achieved in that the device contains internal moving pressure column with a jet nozzle at one end, external polipovidnye tube with telescopic lower part, with the receiving hole, which is connected with the pressure column, telescopic lower part polipovidnami pipe connected with the discharge column is movable, with the possibility of axial movement.
Another difference is that mobile telescopic lower part polipovidnami tube is made with medium density, providing her buoyancy in the pulp.
The difference is that the device is made with the possibility of changes in the average density of the movable body is komicheskoi bottom polipovidnami pipe.
Another difference is that the pressure column and movable telescopic lower part polipovidnami tube is made with restrictors mutual movement.
The drawing shows a device for hydraulic borehole mining of minerals in the working position.
The device contains internal moving pressure column 1 with a jet nozzle 2 at the end, external polipovidnye pipe 3 with telescopic lower part 4 with the receiving hole 5. Telescopic lower part 4 polipovidnami pipe 3 is connected with the discharge column 1 is movable with the possibility of axial movement. Pressure column 1 can be performed with telescopic lower part 6 of the bounding-guide rings 7 and 8. Column 1 and the telescopic part 4 stops can be provided with a stop 9, mounted on the column 1 and the lugs 10, 11 in part 4. Telescopic part 4 may have a density equal to or slightly greater than the density of the pulp due to a material for the manufacture or closed cavities in the structure (not shown). This provides her buoyancy in the pulp. The device can be made with the possibility of changes in the average density of the telescopic lower part 4 polipovidnami pipe. This can be achieved, for example, to fill voids in the construction of the fluid and its reset./p>
Deep powerful flooded field 12, presents loose samoobuchayuschimsya minerals heavy minerals, opened a hole, into which falls the device. Telescopic lower part 6 of the pressure of the column 1 under the pressure of the working agent which may be water or gas-liquid mixture is ejected, the nozzle 2 is approaching the bottom and produces erosion of rock. Following are face with the optimal distance, the nozzle 2 produces an effective preparation of the pulp, and the destruction of large material. Moving the pressure of the column 1 push the lower telescopic part 4 polipovidnami pipe, and includes a receiving hole 5 in the working area. Part 4 movable relative to the pressure of the column 1 allows you to move the receiving hole 5 regardless of the pressure in the right column density zone of the pulp. The ascent and descent of the movable part 4 polipovidnami pipe can be performed by moving the pressure of the column 1 with the contact lugs 9, 10, 11. The buoyancy part 4 relative to the pulp provides automatic finding of the inlet opening 5 in the optimal zone of the pulp. The possibility of changes in the average density part 4 lets you use the device for different density slurries. Rise polymory be carried out by the controlled feeding in polipovidnye pipe of compressed air.
The device provides effective destruction of the coarse material, the preparation of the pulp, mixing solid and liquid, obtaining the optimal density of the pulp, which gives high performance solid.
A simple and reliable device provides an effective, productive development of powerful, deep-seated deposits of loose samoobuchayuschimsya or pre-collapsed minerals.
1. Device for hydraulic borehole mining of minerals, contains internal moving pressure column with a jet nozzle at one end, external polipovidnye tube with telescopic lower part with the receiving hole, which is connected with the pressure column, characterized in that the telescopic lower part polipovidnami pipe connected with the discharge column is movable, with the possibility of axial movement.
2. The device according to claim 1, characterized in that the movable telescopic lower part polipovidnami tube is made with medium density, providing her buoyancy in the pulp.
3. The device according to claim 1, characterized in that the device is made with the possibility of changes in the average density of the movable telescopic lower part polipovidnami pipe.
4. The device according to claim 1, characterized in that the pressure column and movable telescopic lower frequent polipovidnami tube is made with restrictors mutual displacement.