RU2477373C1 - Method of single-flow stepless transportation of rock and mineral deposits from mine during its construction and operation - Google Patents

Abstract

FIELD: mining.

SUBSTANCE: extracted rock is unloaded from a trolley to a bunker, from which it is supplied to a crusher and after that to a sump, in which a hydraulic fluid mixture of the required consistency is formed from crushed hard rock and water, which is pumped out of the sump with a low-pressure soil pump and supplied in turn to each segment of tubular loading device (TLD) arranged in the mine. Besides, pressure water is supplied from the reservoir installed on the surface by means of a pump via the pipeline arranged in the mine shaft to wash out the hydraulic fluid mixture from TLD and transport it via pressure pipeline to the surface to a sludge pond or a concentration plant, and the rest water in the segment after hydraulic fluid mixture washing-out is supplied via drain pipeline to the sump to form hydraulic fluid mixture.

EFFECT: creation of stepless single-flow scheme of hydraulic transportation for any development depth of mineral deposits at construction and operation of mines.

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Description

The invention relates to the mining industry and can be used in the construction and operation of mines by the underground method, and can also be used when transporting abrasive materials on the surface.

Known technological schemes for transporting minerals and rocks from the mine, consisting in multi-stage - skips, trolleys, mechanical lifts and coal pumps.

The depth of mining of minerals is constantly increasing, therefore, the process of issuing both minerals and associated waste to the surface is becoming more complicated.

Carbon suction does not provide pressure for work during transportation of abrasive materials (rocks, ores, etc.), since the greater the pressure of the carbon suction pump, the greater should be the speed of rotation of the impeller, which leads to sharp wear of the casing and impellers, therefore this limits the developed the pressure. When developing at great depths, 2-3 or more steps are required.

The closest analogue is the method of continuous hydrotransportation of the rock from the bottom to the concentration plant, to the hydraulic dump to the surface or to the worked out space described in the Copyright certificate SU 160707, cl. E21F 13/00 of 11/26/1964, which consists in using a feed hopper, crushing the mined rock, feeding it with a feed conveyor to a feed hopper, equipped with many separate chambers, supplying pipelines from a water header with a pressure pump for water into the feed hopper chambers with the formation of pulps in them and further washing out of the rock from them through the pressure pipe to the water separating device, the water separated in the specified device being returned to the water collector, and after the rock is unloaded from the last chamber of the feeder hopper section I washed with water.

A disadvantage of the known solution is the bulkiness of the hopper-feeder, as well as the limited use in depth, associated with the power of the pump unit.

The technical result of the claimed invention is the creation of a stepless (single-stage) single-flow hydrotransport scheme for any depth of mining of minerals during the construction and operation of mines due to the operation of the system under the conditions of communicating vessels.

The technical result is achieved by creating a method of single-threaded stepless transportation of rock and minerals from the mine.

A feature of the claimed method is that from a pump installed on the surface of the tank through a pipe placed in the shaft of the mine, water is supplied under pressure to flush the tubular loading apparatus (hereinafter AZT) of the hydraulic mixture and to transport it through the pressure pipe to the surface in a hydraulic dump or processing plant , and the slurry is obtained in a sump located in the mine by supplying crushed mined rock and water remaining in the AZT after washing the slurry from its lashes.

Figure 1 shows the technological scheme of work with a single-stage delivery of mined rock from the mine during its construction and operation.

The proposed method is implemented as follows.

The produced rock from the trolley (5) is dumped by the tipper (17) into the hopper (6), from which it enters the crusher (7) with subsequent feeding into the sump (8). In sump (8), a hydraulic mixture of the required consistency is formed from crushed hard rock and water coming from the drain pipe (15) of the AZT (4). The resulting hydraulic mixture from the sump (8) with a low-pressure soil pump (9) is pumped out and sent alternately to each lash (10) of the AZT (4) located in the mine. From the tank (2) installed on the surface of the tank (2), water is pumped under pressure (3) in the shaft of the shaft to flush out the slurry (10) AZT (4) of the hydraulic mixture and to transport it through the pressure pipe (12) to the surface to a hydraulic dump (13) or an enrichment plant (14). The remaining water in the whip (10) after washing out the hydraulic mixture through the drain pipe (15) is supplied to the sump. Alternate work of filling the lashes (10) is provided by means of valves (11), which are automatically controlled depending on the time of filling a lash with a hydraulic mixture and washing with pressure water. The water separated from the hydraulic mixture from the hydraulic dump or the processing plant is pumped through the pipeline to the tank (2).

The claimed method provides the issuance of minerals (rocks) from any depth of mining, since it works under the conditions of communicating vessels and the pump head is necessary only to overcome the resistance in the piping system and to overcome excess by the height of the lift or the range of transportation of the slurry.

In addition, thanks to the claimed method, waste rock can be sent to the laying of the developed space during the development of shallow seams of coal and other minerals by the system for the rise of the seam.

Claims (1)

A method of single-threaded stepless transportation of rock and minerals from the mine, which consists in the fact that the extracted rock from the trolley is unloaded into a hopper, from which it enters the crusher, followed by feeding into a sump, in which a hydraulic mixture of the desired consistency from crushed solid rock and water is formed, which is the sump is low-pressure soil pump is pumped out and sent alternately to each lash of the tubular loading apparatus (hereinafter AZT) located in the mine, while from the tank mounted on the surface osse through a pipe located in the shaft of the mine, water is supplied under pressure to wash the slurry from the AZT whip and transport it through the pressure pipe to the surface in a hydraulic dump or processing plant, and the remaining water in the whip after washing the slurry through the drain pipe is fed into the sump to form a slurry moreover, the alternate operation of filling the lashes is ensured by means of valves that are automatically controlled depending on the time of filling a particular lash with a hydraulic mixture and washing with pressure water.

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