Geotechnological dredge complex with terrace placer development device
SUBSTANCE: invention refers to combined development of gold placers using mini-dredges. Complex consists of a dredge with a stacker and installations meant for deep processing of sandy and clay rock of gold placers, a high-head hydromonitor device with a system controlling the barrel movement in a vertical plane, and a hydraulic transport free-flow system. Complex is equipped with a bridge rigidly fixed in the dredge nose part. Bridge is provided with a round divertor intended for movement, and a round divertor meant for a support, which are rigidly fixed on the bridge posts. High-head hydromonitor device is installed on a base rotated by means of a drive. Rotary base is hinged to the platform and equipped with linear guideways. Platform is equipped with a drive of linear guideways which are connected with a round divertor intended for movement, and provided with an additional support connected with round divertor meant for the support.
EFFECT: intensifying mining process including development of terrace high-level placers.
The invention relates to a combined development of gold-bearing placers using mini-drag.
Known dredging complexes with spreader and installations of deep processing of sand and clay rock placers with low gold content /1, 2/.
These complexes do not allow an efficient associated testing terrace placers high level non-industrial for the open method of mining gold content.
Known hydraulic systems with jetting device /3/ with the ability to move the trunk of the giant monitor in the vertical plane and system development with their help /4/.
These systems do not provide effective testing sites terraces with simultaneous refinement of the dredging site.
The closest in technical essence is dredging the complex settings of deep processing of sand and clay rock placers with low gold content, including bulldozer D3-HL or D A Komatsu and dragline ESH - 10/70 /5/.
This complex does not eliminate the loss of valuable components and does not provide a continuous method of mining.
The technical result - the intensification of the production process involving extraction of alluvial terrace placers high level.
The technical result is achieved by the fact that dredging Geotechnology the ski complex with apparatus for testing terrace placers, contains the dredge with spreader and installations of deep processing of sandy-clayey rocks of the gold-bearing placers, high-pressure jetting device to control movement of the barrel in a vertical plane and hydrotransport gravity-flow system equipped with a ramp mounted rigidly in the bow of the dredge, and a rack provided with a radial guide for the displacement and radial guide bearing, rigidly connected with the uprights of the rack, with high-pressure jetting device mounted on rotatable with a drive base and swivel base pivotally connected with the platform and provided with supports rolling, while the platform is equipped with actuator rolling bearings that are associated with the radius of the guide to move with additional support connected with radial guide bearings.
The claimed embodiment dredging geotechnological complex provides associated testing terrace placers high level non-industrial for the open method of mining gold content.
The proposed dredging geotechnological complex apparatus for testing terrace placers shown on the drawings.
Figure 1 - General view of the dredging geotechnological complex; figure 2 is a view in figure 1, And f is D.3 - view B in figure 2; figure 4 is a view In figure 3.
Dredging geotechnological complex 1 with set 2 for testing terrace placers contain the dredge 3 units deep processing 4 sandy-clayey rocks of the gold-bearing placers, high-pressure jetting device 5 with the control system 6 by moving the barrel 7 in the vertical plane 8 and hydrotransport gravity system 9. In the bow 10 Draghi 3 permanently installed rack 11. Rack 11 is provided with a radial guide for moving 12 and radial guide bearings 13, which are rigidly connected with the rack 14 rack 11. High-pressure jetting device 5 is installed on the rotary with a drive 15 under 16. The rotary base 16 of the hinge 17 is connected with the platform 18 and is provided with supports roller 19. The platform 18 is equipped with a drive 20 linear guides 21, which are connected with the radius of the guide to move 12, and provided with additional support 22 that is associated with radial guide bearing 13. Configuration management process parameters development of sand-clay rocks placers, the orientation in space of the high pressure jetting device 5 to the desired impact zone gold deposits terraces by using the control unit 23. Hydrotransport pressure system associated with dredging the bottom 24. Dredge 3 contains spreader 25 for transporting the waste material in the blade 26.
Dredging geotechnological complex apparatus for testing terrace placers works as follows.
Below the terrace is formed in the direction hydrotransport gravity system 9 for admission breed in dredging the bottom 24. In the process Draghi 3 units deep processing 4 sandy-clayey rocks of the gold-bearing placers using the control unit 23 sets the adjustment of process parameters of a release and destruction of rocks terrace placers using high pressure jetting device 5 and the mode switching actuators 15, 20 and control system 6 by moving the barrel 7 high-pressure jetting device 5 in the vertical plane 8. Enables the actuator 20 linear guides 21, and the platform 18 moves in the right direction, high pressure jetting device 5 installation 2 for testing alluvial terrace alluvial dredging geotechnological complex 1 radius of curvature of the guide to move 12 and radial guide bearing 13, is rigidly connected with the rack 14 rack 11 that is installed in the bow 10 Draghi 3. Bearing 22 helps to preserve the stability and rigidity of the entire floating structure on the platform 18. Using the actuator 15 regards the now 16 turns on the hinge 17, while bearings 19 are in contact with the platform 18. After the establishment of high-pressure jetting device 5 relative to the elevation of the terraces included control system 6 by moving the barrel 7 high-pressure jetting device 5 in the vertical plane 8 and the shaft 7 is guided along the height of the terraces. Included high-pressure jetting device 5, is washing and sand blasting while moving high-pressure jetting device 5 on the platform 18 of the radius of curvature of the guide to move 12. Sands come in dredging the bottom 24, where they are partially accumulate and where a continuous stream received by Draghi 3 installation of deep processing 4. Recycled breed is fed through the spreader 25 in the blade 26.
Dredging geotechnological complex provides associated effective mining of alluvial terrace placers high level non-industrial for the open method of mining gold content.
Sources of information
1. Berezin VP manual for the development of placer deposits. / Vperson, Vgisc, Lpparam, Svetelki. - M.: Nedra, 1973. - 592 S. - S, 183, 187, 190, 195.
2. Leshkov V.G. Development of placer deposits: a Textbook for colleges. 2nd ed. /Leshkov VG - M.: Nedra, 1985. - 568 S. - S, RES.
3. Berezin Vsproject on p is this the placers. / Vperson, Vgisc, Lpparam, Svetelki. - M.: Nedra, 1973. - 592 S. - S, RES.
4. Shorokhov S.M. in Technology and comprehensive mechanization of the development of placer deposits. / Smokov. - M.: Nedra, 1973 - 768 S. - S-375.
5. Dorokhov NM engaging Experiences alluvial terrace deposits in the associated development of a dredging method. / Namdakov, Waerhow Gorn. - 2006. No. 10. - P.45-47.
Dredging geotechnological complex apparatus for testing terrace placers containing the dredge with spreader and installations of deep processing of sandy-clayey rocks of the gold-bearing placers, high-pressure jetting device to control movement of the barrel in a vertical plane and hydrotransport gravity system, wherein equipped with a ramp mounted rigidly in the bow of the dredge, and a rack provided with a radial guide for the displacement and radial guide bearing, rigidly connected with the uprights of the rack, with high-pressure jetting device mounted on rotatable with a drive base and swivel base pivotally connected with the platform and provided with supports rolling, when this platform is equipped with a drive linear guides, which are connected with radial guide for the movement, and provided with additional support, connected to the circular arc guide rail for support.
SUBSTANCE: invention refers to development of closely cemented and high plasticity sandy and clay rocks of terrace gold placers combined with development of the dredge range. Complex consists of a dredge with a stacker and installations meant for deep processing of sandy and clay rock of gold placers, a high-head hydromonitor device with a system controlling the barrel turn in a vertical plane, and a hydraulic transport pressure system. Complex is equipped with a bridge one end of which is hinged to a cross member of the dredge nose part posts and connected with a bridge turn drive, and free end is equipped with a linear guideway moving in a horizontal plane by means of a drive. Free end of the bridge by means of guides and sliding supports is telescoped with a crossbar with a stable support, which moves by means of a drive, and bridge is equipped with an additional stable support adjustable as per position relative to the hinge and movable linear guideway. Bridge is provided with longitudinal holes and guides. Additional stable support comes into contact with the bridge longitudinal holes, and is equipped with linear guideways coming into contact with the bridge guides. High-head hydromonitor device is installed on the end of the movable crossbar so that it can move in a vertical plane by means of a drive. The bridge turn drive is installed on a movable base connected via linear guideways to the guides.
EFFECT: intensifying mining process.
SUBSTANCE: invention refers to development of congealed high-plasticity sandy and clay rocks of terrace gold placers combined with development of the dredge range. Complex with a hydromonitor laser system consists of a dredge with a stacker and installations meant for deep processing of sandy and clay rock of gold placers, a high-head hydromonitor device with a system controlling the barrel turn in a vertical plane, and a hydraulic transport pressure system. Laser infrared-radiation system is installed on a rotating platform angle-wise to high-head hydromonitor device with the possibility of simultaneous movement in vertical and horizontal planes. Rotating platform is installed on linear guideways, and hinged to the base, and to its swing drive. Base is connected to the guide posts by means of sliding supports and installed so that it can move in a vertical plane via a system of drive.
EFFECT: intensifying mining process of the dredge range including development of terrace high-level placers with congealed and high-plasticity sandy and clay rocks.
SUBSTANCE: method of development of thick flat-lying coal bed on clots of irregular shape is intended for extraction of coal from sections with limited resources which for economic reasons can not be extracted by means of complex mechanisation. The method includes preparing an extraction pillar by making transport and ventilation entries at a bed roof and a hydro-transport entry at a bed floor with the axis of the hydro-transport entry set-off against the axis of the transport entry to the direction of massif. The extraction pillar is divided into strips with stopes; simultaneously there is assembled a roof bolting while leaving between-stopes massifs virgin. The stopes are made at the bed roof from the transport to ventilation entry. Neighbour stopes are linked with connections. A borehole is drilled approximately along the axis of the stope from the hydro-transport entry to each stope. A hydro-transport slit is cut with a hydro-monitored jet from the head of the borehole to the ventilation entry along the axis of the stope till the bed floor, and in the reverse direction coal is extracted with a hydro-monitor below the stope floor and partially under the massif from the flank side. Transporting of loose coal in mine workings above the stope floor is performed with traditional means, for example with self-propelled car and conveyer, while below the stope floor it is transported in form of pulp. After extraction of coal in stopes there is performed extraction of massif under the transport entry and further - under the ventilation entry by the similar method.
EFFECT: increased efficiency and safety of development.
2 cl, 6 dwg
SUBSTANCE: complex method of hydro excavation of minerals consists of development mining, of equipping with ventilation system and system of heating of mine working, of hydraulic breaking up of bed with an automated mining combine in a continuous mode of operation with installation of face supports, of hydraulic transporting of broken rock, of concentration of obtained mass and its further dehydration, of drying of water encroached beds, and of purifying of process liquid with its recirculation. Hydraulic breaking up of a bed is carried out simultaneously with its impulse mechanical destruction by means of introducing an abrasive material of upgraded hardness into a liquid jet; further abrasive material is separated from broken rock at the time of its hydraulic transporting and concentrating; concentration of broken rock and partial separation of liquid pulp with abrasive material from broken rock are performed by means of transporting and mixing them at the roller type facility; flowing down pulp with abrasive material is driven to purification by means of a pumping system wherein solid particles of abrasive material are separated from the rest of the pulp and where abrasive material is saturated with solid particles of broken rock of specified dimension. Saturated abrasive material is directed to recirculation, while partially purified process liquid is mixed with the liquid obtained at drying of water saturated beds; then process liquid is finally purified by cold evaporation and is brought to recirculation. A portion of purified process liquid is supplied to the ventilation system of mine working and is dispersed in air in form of fine dispersed particles; continuous control measurements of air temperature, of explosion hazardous particles and coal dust contents in air are carried out during mine working operations.
EFFECT: upgraded versatility, efficiency, automaton, quality and reliability of process behavior in constraint conditions of mine working, improvement of ecological situation at mine.
SUBSTANCE: invention relates to mining and can be employed at development of deposits of minerals in form of an edge seam overlapped with mass of rocks of basic sediments by means of borehole hydraulic mining. The method of hydraulic borehole mining incorporates opening out a rock mass overlaying a producing horizon with a vertical borehole; then a successive boring of several producing inclined wells is performed out of this borehole in several directions along the pitch at a hanging wall, then up and down washing out of the horizon of deposits is carried out from producing wells, and as a hydraulic borehole device goes up, a case column is taken out; before termination of borehole washing out a required safety massif of rock is left at the upper portion of the borehole.
EFFECT: increased efficiency of hydraulic borehole mining of minerals and increased output owing to extension of development zone.
SUBSTANCE: invention is referred to a mining industry and can be used in development of firm minerals. The method of hydro mining operations includes hydraulic crushing of a rock bed, hydro transportation of broken off rock, supply of stowing material in a worked out room using a pipe line. Loose rock is enriched and dehydrated, and the waste received at beneficiating of loose rock is blended with a pulp received at dehydration of loose rock. The obtained mixture is used for filling the waste area. Sacciform resilient perforated shell is put in the waste area. Further on, it is connected with the filling material pipe and filled with filling material under heavy pressure. The flowing fluid obtained by perforation is collected and sent for treatment and recirculation.
EFFECT: better filling reliability of the waste area and safety of mining operations, lower expenses for filling, improved ecological situation on mine and in its neighborhoods due to fluid recirculation in the technological process.
FIELD: mining engineering.
SUBSTANCE: bullet consists of external pulplifting pipe section 1 fitted with seal assemblers and inner water-and air delivering pipes 2 and 4, which upper ends are output from pulplifting pipes, lower end of water delivering pipe is fitted with checker 3, and lower end of air delivering pipe is fixed with sprayer 5. Inside pulplifting and air delivering pipes addition sectional pipe is installed 6 for delivering of warmed water and steam for defrostation of formations, which ends are derived beyond pulplifting pipe.
EFFECT: effectiveness improvement of excavation and working of frozen sedimentary strata.
5 cl, 3 dwg, 1 ex
FIELD: mining engineering.
SUBSTANCE: method includes reagent solution feeding in section for outside water bleaching, given for washing. At that outside water is divided in elementary fluent. Separate fluids are intermixing with reagent and unite them into common flow. Result is achieved by means of by fluids reagent feeding and more intensive mixing of flow with reagent.
EFFECT: effectiveness improvement of flocculation.
FIELD: machine building.
SUBSTANCE: environmental separation method in airlifting of submersible deposits of minerals and its implementation system which comprises lifted pipe, replenishment camera with a branch, feeding pipe, pump with force piping, air separator assembled on the lifted pipe, lifted pipe mixer connected to the force piping of the pump, compressor with a corresponding force piping, water separator assembled in an intermediate cross section of the pump force piping - separate accumulator, connected to a separate accumulator, and branch outgoing to environment, additional mixer connected to the pump force piping and to the compressor force piping, and fluid consumption sensor. Additional accumulator is installed in the intermediate cross section of the feeding pipe, and suction and force pipelines of an additional pump are tied to an additional accumulator. The separate accumulator comprises indicators of fluid level, suction pipeline of the additional pump is equipped with a tip, located in the additional accumulator. The force pipeline of the additional pump comprises pivotal position distributing valve, and blade wheel is installed in the additional accumulator. At that the force piping of the pump and the branch, connected to the separate accumulator, are equipped with corresponding controlled valves. The suction pipeline of the compressor is equipped with a filter and connected to an air separator, while a rotation speed sensor - a tachometer -is connected to the blade wheel.
EFFECT: improvement of environmental separation method in airlifting of submersible deposits of minerals; improvement of the ocean ecosystem.
2 cl, 5 dwg
FIELD: mechanical engineering, particularly underwater mineral deposit mining.
SUBSTANCE: method involves using system including lift tubing, supply chamber with connection pipe, supply pipe, pump with injection pipeline, air separator installed in lift tubing, lift tubing mixer communicated with injection pipeline and pump with corresponding heating pipeline. The system also has water separator installed in intermediate cross-section of injection pipeline. The water separator is made as independent accumulator. The system includes connection pipe attached to independent accumulator, additional mixer communicated with injection pipeline and liquid flow meters. Additional accumulator is arranged in intermediate transversal cross-section of lift tubing. Sucking pump pipeline and sucking compressor pipeline are connected with additional accumulator and air separator correspondingly. Independent accumulator comprises liquid level indicators. Sucking pump pipeline is communicated with additional connection pipe provided with controllable gate. Sucking compressor pipeline comprises filter. Consistometer is connected with supply pipe.
EFFECT: increased efficiency of continuous underwater mineral deposit element lifting due to increased marine hydraulic rams.
2 cl, 5 dwg
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.
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.
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
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.
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.
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.