Hydraulic borehole ore mining method

FIELD: mineral extraction method with the use of underground hydraulic ore cutting and extraction of crushed ore through boreholes.

SUBSTANCE: method involves cutting deposit over the deposit area into panels (sections or blocks); drilling boreholes for extracting pulp; arranging standpipe for pressure working medium supply and standpipe for conveyance medium supply; forming working excavation and filling thereof with stowing after development; performing lower deposit undercutting to provide ore massif permeability for working medium by serial shock blasting borehole and then camouflet explosive charges; forming camouflet cavities by blasting borehole charges and intermediate camouflets; performing successive impregnating of crushed massif with medium dissolving borehole minerals (for instance with acid or alkali solution); arranging containers with the dissolving medium above camouflet explosive charges before blasting thereof; separating them from explosive charges and from upper borehole part by stowing; supplying working medium through pressure working medium pipeline without creating overpressure in the medium; increasing pressure at outlet with hydraulic intensifier; regulating ratio between solid and liquid components of pulp risen by means of airlift plant by supplying compressed air through actuator arranged under pulp intake means.

EFFECT: increased fullness of mineral extraction.

3 cl, 6 dwg

 

The method of in-situ ore can be used in the mining industry, for example, when working loose or poor ores with great depth.

Known methods hydraulic borehole mining (Varens. Geotechnological methods of mining. M., "Nedra", 1975). The methods include a breakdown of deposits by the square on a separate excavation units (panels, sections, blocks), the drilling of wells for supplying fluid distribution and slurry or solution, the supply pressure of the working fluid for wells in the working layers, the issuance of a slurry or solution. The disadvantage of this method is the low extraction of minerals from the subsoil, which significantly reduces the technological capabilities of the methods.

Known methods of downhole production with the creation of the fracture with blasting operations conducted from wells (Lionel. Mine development system deposits of uranium underground leaching. M, Energoizdat, 1982). Their disadvantage is the low coverage of the downhole riskreducing charge, which reduces the technological capabilities of the method.

The closest technical solution is the way of a hydraulic borehole mining with mined-out space (Heap and in-situ leaching of metals Gedlinske, DPOAE, Vphysical and the R. Ed. by S.N. Volodya. M., Nedra, 1982, p.41).

The destruction of the ores in the sheet-like deposits made by the working medium supplied through the hole through which it is manufactured and the issuance of the ore pulp. Subsequently, the formed cavity is put through the hole vacated after the ore deposits. The disadvantage of this solution are large losses in such a way that reduces the technological capabilities of the method.

The aim of the present invention is the expansion of technological capabilities of hydraulic borehole mining ores.

This goal is achieved by the fact that in the way of a hydraulic borehole mining, including a breakdown of deposits in terms of panel, drilling of production wells, the lower cutting developed reservoirs, rising mining stocks panel, separate the flow of the working medium and the compressed air in the area of sewage extraction, the rise of the pulp airlifting installation and the mined-out space, the lower cutting deposits to the state of the permeability of the ore array working environment produce consistent shaking the blasting hole, and then kompletny charges placed in kompletny cavities formed by the blasting hole charges; comoplete cavity formed by the blasting hole charges, that you are carrying out subsequent impregnation Rastro the Lenna array solvent borehole minerals environment, for example, solutions of acids, alkalis, etc; and containers with solvent environment is placed over the borehole and comopletely charges; in the pipeline for the discharge of a jet of working environment serves without excessive pressure, and the output increase, for example, gidromanipulyatorov; ratio of solid and liquid in the pulp issued by airlifting installation regulated by feeding compressed air through the activator, which is placed under purposable outstanding pipeline.

The invention is illustrated by drawings, figure 1-6.

Figure 1 shows the breakdown of deposits according to the area on the excavation of the panel and the scheme of their drilling technology wells. Figure 2 shows a section of the mountain massif along the line of production wells through which the rise of the pulp.

Figure 3 and 4 show sections of borehole and kompletny charges.

Figure 5 shows a diagram of the multiplier, which is equipped with a discharge line, and 6 is a diagram of the intake parts polioviruses pipeline with activator.

The method includes the breakdown of deposits in panel 1, the drilling of production wells for the issuance of pulp 2, placement of the pipe composition of the feed pressure of the working medium 3 and the feed conveying medium 4.

As a result of a number of manufacturing operations at the bottom of the reservoir is formed open the treatment space 5, after reaching the upper boundary of the reservoir is filled with a tab 6.

Treatment work begins with the lower strike, which at the lower end to form comoplete cavity. The last carry out a series of explosions, the first wells 7, then the intermediate complete 8.

The explosion turns out kompletna cavity 9, the ends of the wells 7 and re-intermediate camouflet 8, 9 fill explosive 10, over which is laid stemming 11, then the container 12 with solvent borehole minerals, and behind them again stemming 11.

After production of a series of shaking explosion cutting into the wells fall rubygame pipe becoming (well 2), the pressure becoming (well 3) and as the conveying medium (well 4).

Pressure becoming equipped with gidromanipulyatorov 13 (figure 5). Hydraulischer has a cavity low 14 high 15 pressure, the check valve 16 and the working nozzle 17.

Purposedly standing at the end equipped with purposebuilt 18 and a pipe for supplying compressed air 19. Pulpotomy made in the ejecting device 20 and is equipped with an activator 21.

Treatment operations are carried out with simultaneous submission of the working medium in the pressure becoming (well 3), becoming for supplying the conveying medium (well 4) and compressed air in purposedly the line is the gadfly.

Working environment through the discharge pipe and hydraulischer comes into the treatment space, obrashaet layer of ore, the latter, being on the ground, picked up by the working medium flowing through the bore 4, is delivered to pulponasosnuju, which activator pulp rises directly to polioviruses pipeline and then to the surface.

The method allows to provide reliable cutting the ore Deposit at the bottom and rising treatment practice, which dramatically increases the extraction of ore.

1. Way of a hydraulic borehole mining of ore, including a breakdown of deposits in terms of panel, drilling of production wells, the bottom cutting, rising mining stocks panel, separate the flow of the working medium and the compressed air in the area of sewage extraction, ascent erlitou installation of the pulp, the mined-out space, characterized in that the cutting treatment space to the permeation of ore mass production environment produce consistent shaking blowing swinnich, and then camouflage charges placed in the camouflet cavities formed by the blasting hole charges, that you are carrying out subsequent impregnation crushed array solvent borehole minerals, such as solutions of acids, alkalis, and other and the containers the market with the solvent medium is placed over the borehole and camouflage charges.

2. The method according to claim 1, characterized in that in the pipeline for the discharge of a jet of working environment serves without excessive pressure, and the output increase, for example, gidromanipulyatorov.

3. The method according to claim 1, characterized in that the ratio of solid and liquid in the pulp, issued erlitou install, adjust by feeding compressed air through the activator is placed under purposable outstanding pipeline.



 

Same patents:

FIELD: mining industry.

SUBSTANCE: method includes opening productive bed by product slanting well, casing the well by pipes column, mounting well block with concentrically positioned pipes columns, lift and hydro-monitoring headpiece, hydro-monitoring erosion of bed and raising formed mixture of rocks by said lift to surface. According to method, opening of productive bed is performed using product slanting well and its casing is performed by displacing outer pipes column of well block along well axis and concurrent rotation of inner pipes column, hydro-monitoring headpiece is inserted inside outer column of pipes of well block, and during erosion of bed it is pulled out of outer pipes column of well block. Device for realization of said method is made in form of well block, including as common parts concentrically placed pipes column, outermost of which is casing column of well, and inner one is provided with headpiece with lift, hydro-monitoring headpiece and pressurizing element, and portal in form of two-passage swivel for feeding water and draining pulp. Pressurizing element is mounted at end piece above hydro-monitoring headpiece and is made in form of cylindrical shelf. To limit movement of inner pipes column relatively to outer pipes column, at lower end of outer pipes column a bushing is mounted with possible interaction with cylindrical shelf, outer diameter of which exceeds inner diameter of bushing.

EFFECT: higher efficiency, lower costs, lower laboriousness.

2 cl, 4 dwg

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FIELD: mining industry.

SUBSTANCE: method includes opening productive bed by product slanting well, casing the well by pipes column, mounting well block with concentrically positioned pipes columns, lift and hydro-monitoring headpiece, hydro-monitoring erosion of bed and raising formed mixture of rocks by said lift to surface. According to method, opening of productive bed is performed using product slanting well and its casing is performed by displacing outer pipes column of well block along well axis and concurrent rotation of inner pipes column, hydro-monitoring headpiece is inserted inside outer column of pipes of well block, and during erosion of bed it is pulled out of outer pipes column of well block. Device for realization of said method is made in form of well block, including as common parts concentrically placed pipes column, outermost of which is casing column of well, and inner one is provided with headpiece with lift, hydro-monitoring headpiece and pressurizing element, and portal in form of two-passage swivel for feeding water and draining pulp. Pressurizing element is mounted at end piece above hydro-monitoring headpiece and is made in form of cylindrical shelf. To limit movement of inner pipes column relatively to outer pipes column, at lower end of outer pipes column a bushing is mounted with possible interaction with cylindrical shelf, outer diameter of which exceeds inner diameter of bushing.

EFFECT: higher efficiency, lower costs, lower laboriousness.

2 cl, 4 dwg

FIELD: mineral extraction method with the use of underground hydraulic ore cutting and extraction of crushed ore through boreholes.

SUBSTANCE: method involves cutting deposit over the deposit area into panels (sections or blocks); drilling boreholes for extracting pulp; arranging standpipe for pressure working medium supply and standpipe for conveyance medium supply; forming working excavation and filling thereof with stowing after development; performing lower deposit undercutting to provide ore massif permeability for working medium by serial shock blasting borehole and then camouflet explosive charges; forming camouflet cavities by blasting borehole charges and intermediate camouflets; performing successive impregnating of crushed massif with medium dissolving borehole minerals (for instance with acid or alkali solution); arranging containers with the dissolving medium above camouflet explosive charges before blasting thereof; separating them from explosive charges and from upper borehole part by stowing; supplying working medium through pressure working medium pipeline without creating overpressure in the medium; increasing pressure at outlet with hydraulic intensifier; regulating ratio between solid and liquid components of pulp risen by means of airlift plant by supplying compressed air through actuator arranged under pulp intake means.

EFFECT: increased fullness of mineral extraction.

3 cl, 6 dwg

FIELD: transport building, particularly to perform mining operations in far north areas.

SUBSTANCE: method involves cutting ground in pit and supplying sludge to concentration plant; separating the sludge into concentrated and lean sludge fractions in the concentrated plant; forming deposit vessel in water pool, filling the vessel with lean fraction, wherein the vessel is isolated from concentrated ground deposit by partition dam; developing concentrated ground with jet drag heads; forming and supplying strong pulp to washing in zone; washing in ground in layers, wherein upper layer consists of concentrated draining ground, or forming above ground structure by freezing the ground in layers in winter period. To implement above method water pool bottom is deepened to design level, one or several head parts of drag head are installed on deepened water pool bottom, the head parts are covered with concentrated ground and ground deposit is formed below ice boundary of water pool. Ground is extracted from above deposit from under ice through flexible sludge pipelines during extended working season.

EFFECT: reduced unit costs for strong sludge forming and elimination of costs necessary to maintain lane above underwater ground deposit during extended working season.

2 cl, 2 dwg

FIELD: mining industry, particularly borehole mining.

SUBSTANCE: installation comprises platform, hydraulic monitor plant with telescopic head, as well as airlift, rotary device installed on the platform, water recycling system, elastic oscillation generation system and distribution device connected to falling airlift members and to ultrasound disintegrator. Hydraulic monitor plant is provided with automatic hydraulic monitor operation control system installed on additional platform and connected with executive members of rotary device made in hydraulic monitor plant through hydraulic system. Elastic oscillation generation system may produce ultrasound oscillations of changeable power, which are transmitted by means of wash zone oscillators, pre-disintegration zone oscillator and oscillators of ultrasound disintegrator of the fist and the second level. Wash zone oscillators and sensors which record dynamic wash zone properties are installed on upper telescopic bar of T-shaped lever pivotally secured to additional rod of hydraulic monitor plant and brought into cooperation with drive through L-shaped link for lever rotation. Pre-disintegration zone oscillator and sensors which record dynamic properties of pre-disintegration zone are installed on telescopic rotary device hinged with airlift rod. Sensors which record dynamic wash zone properties and ones which record dynamic properties of pre-disintegration zone are linked with control system, which controls ultrasound denerator operational characteristics, and with automatic hydraulic monitor operation control system by digital programmed transforming device. Sensors, which determine dynamic properties of ultrasound disintegrator, are installed at the first level surface inlet and outlet of the ultrasound disintegrator. Above sensors are connected with control system, which controls operational characteristics of ultrasound denerator, through digital programmed device related with the next disintegration operation.

EFFECT: increased efficiency of mining operation and increased environmental safety.

5 dwg

FIELD: mining industry, particularly borehole mining.

SUBSTANCE: installation comprises platform, hydraulic monitor plant with telescopic head, as well as airlift, rotary device installed on the platform, water recycling system, elastic oscillation generation system and distribution device connected to falling airlift members and to ultrasound disintegrator. Hydraulic monitor plant is provided with automatic hydraulic monitor operation control system installed on additional platform and connected with rotary device of hydraulic monitor plant through hydraulic system, wherein vertical rod of hydraulic monitor plant is provided with rigid fixers brought into cooperation with slots of additional vertical rod. Elastic oscillation generation system may produce ultrasound oscillations of changeable power, which are transmitted through transformers to wash zone oscillators, pre-disintegration zone oscillator and oscillators of ultrasound disintegrator of the fist and the second level. Sensors which record dynamic wash zone properties and sensors which record dynamic properties of pre-disintegration zone are installed on the additional rod included in hydraulic monitor. Sensors which record dynamic wash zone properties and ones which record dynamic properties of pre-disintegration zone are linked with control system, which controls ultrasound denerator operational characteristics, and with automatic hydraulic monitor operation control system by digital programmed prior transforming device. Sensors, which determine dynamic properties of ultrasound disintegrator, are installed at the first level surface inlet and outlet of the ultrasound disintegrator. Above sensors are connected with control system, which controls operational characteristics of ultrasound denerator, through digital programmed device related with the next disintegration operation.

EFFECT: increased efficiency of mining operation and increased environmental safety.

5 dwg

FIELD: mining industry, particularly to produce loose, soft or single-grained minerals through production boreholes.

SUBSTANCE: method involves installing drilling rig in one point of area to be treated; drilling inclined production boreholes at an angle to horizon; installing pipes in the borehole; assembling hydraulic production equipment and lifting mineral to surface. Drilling rig is installed in one point to be treated so that the drilling rig may perform azimuth and angular rotation in vertical plane. Several production boreholes extending at different angles to horizon in common vertical plane are drilled by the drilling rig. The first borehole has minimal angle defined by maximal possible length of borehole, which can be drilled by the drilling rig. The next borehole has maximal angle defined by rock deformation area to prevent rock deformation on surface and in mineral production equipment installation area. Remainder boreholes are drilled in the same vertical plane at α3, α4, ... απ angles to horizon, which maximizes efficiency of mineral production. Similar inclined boreholes are drilled in other vertical planes by rotating the drilling rig in azimuth direction through γ1, γ2 ... γπ angles. Mineral is produced simultaneously or sequentially from borehole groups to provide smooth lowering of overlaying rock.

EFFECT: increased mineral removing fullness with the use of single equipment unit, reduced amount of construction-and-assembling operations, possibility to perform operations in any season, reduced costs of operation performing in cold season, increased safety for staff and equipment.

2 dwg, 2 ex

FIELD: mineral field development by hydraulic mining methods, as well as borehole drilling and all-purpose underground cavities creation.

SUBSTANCE: device comprises connection pipe for pressure water. Connection pipe of slurry pipeline has conical constricted section, wear-resistant insert made as spaced rings of wear-resistant material installed downstream from the conical constricted section in slurry flow direction, and conical widening section arranged downstream from the rings. Connection pipe of slurry pipeline has orifices made in area of ring location and adapted to supply pressure water into connection pipe of slurry pipeline via gaps defined between the rings. Hydraulic elevator is arranged at end of connection pipe for pressure water. Connection pipe for pressure water and hydraulic elevator may have water-jet nozzles. Gaps between rings of wear-resistant insert are created due to ring end roughness. As pressure water is supplied part of flow moving via annular gap passes through annular hydraulic elevator and enters into connection pipe of slurry pipeline to create ascending flow. Due to created vacuum washed mineral is sucked into connection pipe of slurry pipeline in slurry form and then transported to surface.

EFFECT: reduced wear of inlet connection pipe part.

3 cl, 1 dwg

Hydraulic monitor // 2272143

FIELD: methods of hydraulic mining, particularly hydraulic monitors for rock breakage with water jets.

SUBSTANCE: hydraulic monitor comprises base, hinge assembly and barrel with nozzle. Through pipe extending along barrel axis is installed in barrel channel and supported by centrators. The first pipe end is communicated with atmosphere, another one is located in the nozzle. Pipe-nozzle diameter ratio is 0.50-0.57. The pipe serves as ejection means. As high pressure water passes through the nozzle streamlined air bubble is created at pipe outlet due to air ejection. Air bubble pressure is less than atmospheric pressure. This provides jet compression at nozzle outlet and as a result increases jet range. Abrasive and chemical materials may be used with water jet to improve rock breakage efficiency.

EFFECT: increased efficiency.

1 dwg

FIELD: mining, particularly to develop gold-bearing rock with high clay content.

SUBSTANCE: method involves loosening rock by applying mechanical action to the rock along with periodically initiating elastic vibrations in ultrasonic-frequency band with constant frequency in clay-sand rock - water system, wherein the elastic vibrations are initiated under constant outer pressure and power for different time periods; determining optimal action application time to provide stable clay particle precipitation in clay-sand rock - water system having constant volume during previously choosing controllable particle dimension range; determining conditional transformation coefficients from mathematical expression; making plot of conditional transformation coefficient change as a function of time; determining increase of controllable initial specific surface of particles to be loosened and halving ultrasound power when controllable initial specific surface of particles to be loosened is increased by an order.

EFFECT: reduced specific power consumption.

6 dwg

FIELD: geotechnology, particularly bore mining in wide range of mining and geological conditions.

SUBSTANCE: method involves drilling bore extending for the full thickness of underground mineral formation; cutting the underground mineral formation in chamber coaxial to the bore with the use of water-jet devices. Before hydraulic formation cutting rock massif is moistened by supplying pressurized water in bore for a time period enough to expand moistened zone for necessary distance, wherein water pressure is less than pressure of hydraulic formation cutting. After formation moistening water-jet device is lowered in the bore to cut mineral in moistened zone adjoining the bore. After that formation moistening and cutting operations are repeated to create chamber having predetermined dimensions.

EFFECT: reduced power inputs for hydraulic rock cutting.

2 dwg

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