ethods of mining or quarrying and open-pit mining and layouts therefor (E21C41)

E   Fixed constructions(158735)
E21C     ining or quarrying(17294)
E21C41                 ethods of mining or quarrying; open-pit mining; layouts therefor(4907)

ethod of processing of a cutting site // 2642721
FIELD: mining.SUBSTANCE: method of working out the excavation site includes the excavation of the excavating and ventilating drifts, the chamber mining system, the transportation of the mineral by the conveyor. The excavating drift passes to the middle of the excavation site, then the auxiliary drifts pass at an angle to the excavating drift. The cleaning chambers are worked from the auxiliary drifts. Auxiliary excavation gates pass at an angle of 30-60 degrees to the excavation drift. The cleaning chambers within the excavation site are worked both in the meridional and in the latitudinal direction. The mouth of the cleaning chambers in the latitudinal direction is located diagonally from the mouths of the treatment chambers in the meridional direction.EFFECT: invention reduces the amount of mining preparation works by reducing the length of the extraction, and the face ends of conveyor, enhance security operations.4 cl, 4 dwg
ethod of preventing flooding of potash mine over reef array // 2642610
FIELD: mining.SUBSTANCE: method involves panel-block preparation of reserves and development of sylvinite beds by system of chambers. Prior to mining, seismic exploration is carried out, the boundary of reef array spreading in the subsalt layer and the sections with dip angle of reef array roof more than 2.5 degrees are determined. Then the mining direction of potassium ores is selected so that temporary and permanent boundaries for development of beds together with their alignment of selected sections on the plan are sub perpendicular along the strike of the boundaries of the reef array. In the case of alignment of the development boundaries with reef array sections with roof dip angle more than 2.5 degrees with the non-perpendicular position of mining boundaries and the boundaries of reef array, and in case of stretching deformations in the water-protective layer due to their increase towards rood dip of the reef array, the limits of areas of inactive mining operations are advanced from the boundaries of the reef array by carrying on the development and transferring the area of stretching deformations to compression state.EFFECT: prevention of extreme situations at potassium mine.1 cl
ethod for developing horizontal and lower ore bodies of average capacity // 2642193
FIELD: mining.SUBSTANCE: how to develop horizontal and inclined orebody medium power under-level collapse involves workings: delivery of Horta, drilling entries, separating the ore body, shipping arrivals, dividing into partitions the panel ventilation rebelling, and also capable to cut layers of ore fans wells drilled from drilling entries, onto the clamping medium and the release of the beaten off place ore-face scheme simultaneously through pins and drilling loading races. As the drilling workings, the drifts of the release horizon are used. Capable to cut ore sections, having the form of parallelepiped, exercise ahead of refining of partitions in the center pane, providing a taper-/wedge-in terms of the shape of the front of mining, defines temporary resistance of overlapping rocks above the recoverable partitions and an increase in the release points for ore beaten off the Central Panel, up to three, for the rest of the panels-up to two. The height of the section is assumed to be equal to the thickness of the deposit, the width of the section is assumed to be equal to the width of the panel, which is determined from the average diameter of the ore flow at the end outlet, 8 m, the thickness of the section is taken in accordance with the critical height of the discharge ellipsoid, defined as half of the section height.EFFECT: invention makes it possible to increase the efficiency of the technology by reducing the amount of tunnelling work and achieving high-quality indicators and completeness of extracting ore from the bowels while working out horizontal and gentle deposits with a capacity of 10-15 m.2 cl, 3 dwg

Bottom of the block with ore vibro outlet // 2641554
FIELD: mining.SUBSTANCE: bottom includes a hauling, ventilating, trenching and loading-and-delivering chambers with chambers of the operator of development. The end of the loading and delivery output is taken out under the trench and their conjugation is formed in the form of an upwardly expanding receiving chamber. Ventilation production is carried out in parallel with a pulling chamber near the end of the operator's chambers above their roof. Ventilation production is supplied with the loading and delivery through the vent wells, which provide the necessary supply of fresh air due to general mine depression. The overlap of the ventilation wells regulates the consumption of fresh air in separate sections and, in general, for the mine workings.EFFECT: improvement of conditions, improving security and productivity in bottom blocks with ore vibro-outlet, ore extraction cost reduction can be achieved by increasing the height of the visor, the rational arrangement of ventilation and it's formulation reliable aerodynamic messages from visitors and cargo delivery works the bottoms.2 cl, 3 dwg

ethod for creating additional reserves of water at restoration of peat bogs // 2640829
FIELD: ecology.SUBSTANCE: method contains a structural scheme and includes a storage pond 1 where water from a freshwater source is fed through channel 2, a water outlet 3, ice sites 4, a pumping station 5 connected to a water outlet 3 and an underground pipeline 6 with hydrants 7 and connected to them sprinklers 8, pond-accumulator 9 of freshwater, pond-distributor 10 for supplying water to bogs peateries. For collecting and supplying freshwater, pond-accumulator 9 also includes channel 13, dug along the central longitudinal axis with a bias to collecting place to the pond-distributor 10, and at the end of the channel 13 areaway is made. Storage pond 1, pond-accumulator 9 and pond-distributor 10 are sequentially located in the direction of the main slope of the terrain. Ice sites 4 with pipelines 11 with valves 12 are connected to the storage pond 9. To spray the layer of black material onto the ice mass, a heat-insulating coating is applied of hydrophilic capillary-porous material of the soil or in the form of peat by spraying using natural climatic factors, in particular, under the action of solar radiation, which is intended to accelerate the melting of ice with the transformation into the accumulation of water in summertime. Ponds 1, 9 and 10 are hydraulically connected to each other by pipelines with valves. After the water enters the pond-distributor 10, it is supplied into the open channel 18 to fill the peat bog 17, which is divided into compartments. The compartments of the peat bog are separated by earthen bridges with the water outlets made in them with regulating structures. Thus, this allows creating conditions for the restoration of peat bogs on the cutover bogs.EFFECT: providing an environmental and ameliorative environment more reliably and reducing the risk of emergencies around the cutover bogs.4 cl, 8 dwg

Hydraulic bore mining of minerals // 2640611
FIELD: mining.SUBSTANCE: hydraulic bore mining of minerals includes drilling of technological wells, placement of hydraulic seals and pressure pipelines in them, erosion of the productive formation. The erosion of the productive formation is carried out in the direction from the side of the split trench to the outlet to the surface. Mining is formed, the stability of its arch is determined by the parameters of erosion along the width and height of the reservoir and the physical and mechanical properties of the rocks being developed. The pulp is delivered to the pulp-receiving ditch through the formed rock mine in the gravity-flowing regime.EFFECT: increased productivity of the process of minerals mining.2 cl, 4 dwg

ethod of water encroachment of peatbogs, preeminently of cutover peats // 2640278
FIELD: construction.SUBSTANCE: water encroachment of cutover peats is made as a constructive scheme, including reservoir 1, accumulating water from local runoff, retaining and regulating structures 2 located at the inlet to bypass channel 3, and below main pipeline 4 with closures 5-7. The main pipeline 4 is connected to the ring channels 8, which are connected to each other by means of the water discharge structures 9 with the closures 10-12. Ring channels 8 are made as fenced side walls, made of material in the form of planed boards 13 with slots between them on the one side, and on the other side (the outer side), annular water-retaining dams 14 are made. The dams 14 are poured from the local soil of the peatbog and they serve as a road for moving light motor vehicles on it. Conductive ring channels 8 are made inclined, allowing water to be transferred in a circular manner to fill the encroached area with water. The conducting ring channels 8 are laid with a distance increasing from the center of the cutover peat to the periphery.EFFECT: design will improve the efficiency of local runoff for encroachment of the whole massif, to resume the marshes to their initial approach, the peat deposit with aquatic vegetation, reduce the energy costs for encroachment the cutover peats and improve the ecological situation, and has the ability to manage the differentiated flooding of each section of the cutover peat.3 cl, 1 dwg

ethod for mining inclined ore bodies // 2638995
FIELD: mining.SUBSTANCE: proposed method for mining inclined ore bodies in upward order comprises filling mined space with rock blocks, ore discharge area through trench bottom-cut in confined isolated space. A distinctive feature of method lies in mining of next panel in confined space limited by rock blocks cut in hanging block. The cutting the rock block from the hanging side above the mined panel is carried out simultaneously with blasting of ore in the panel, landing of this block is carried out by means discharge area for blasted panel ore through the trench bottom-cut, at that the inclination angle of rock block sliding plane varies within the limits from the vertical angle the angle of natural slope of blasted ore.EFFECT: possibility of application the method for mining inclined ore bodies with inclination angle 20-45 degrees and providing complete extraction of blasted ore without dilution in confined space, previously isolated by placed rock blocks, with discharge of ore to the trench bottom-cut.2 dwg

ethod of driving raises // 2638992
FIELD: mining engineering.SUBSTANCE: method of driving the raise includes preliminary slotting along raise contour over entire height and subsequent crushing of rock array separated from rock mass by blast method. The raise shape is made in the form of a truncated pyramid with a larger base downwards, holes are drilled along side faces and ribs of the pyramid and explosive charges positioned therein are blasted simultaneously, forming a slit along the raise contour. The block of rock separated from the rock array in the rise contours is crushed by the explosion of charges charged into the holes drilled near raise axis. Initiation of said charges by means of short-delay blasting is carried out after formation of contour slit during falling of the separated rock block. The holes charged along the raise contour are alternated with non-chargeable ones.EFFECT: invention makes it possible to reduce the volume of holes drilling for development and provide reliability of raise formation over entire predetermined height per one blast.2 cl, 5 dwg

ethod for open pit mining of mineral deposits // 2637667
FIELD: mining.SUBSTANCE: method for open pit mining of mineral deposits includes construction of open pit of first stage to entire depth of pool development, arrangement of overburden rocks from the open pit of first stage into outer pile, separation of the open pit field into face and dump portions, placement of overburden rocks with subsequent extraction of the deposit to the inner dump. According to invention, the face portion of the open pit field is mined by inclined active benches, dump portion of the open pit field is formed by inclined dump tiers. The inclination of active benches and the inclination of dump tiers are performed in opposite directions, and haulage communication between said active benches and dump tiers is carried out along horizontal transport berms made along the strike of deposit along the edges of the open pit field.EFFECT: providing cyclicity of mining operations, uniform loading on personnel and equipment when developing the deposit.7 dwg

ethod for bed preparation with stable rock in immediate back // 2636992
FIELD: mining.SUBSTANCE: method for bed preparation with stable rock in immediate back includes driving of production and ventilation drifts. Transportation of ore is carried out by a conveyer located in extraction drift. The extraction of minerals is performed by chamber system with extraction of block in retreat order. In the middle of the section the production and ventilation drifts are parallel to each other. At that they are periodically connected to each other by brake throughs in which the ventilation bulkheads are installed. The ventilation drift extends from production drift at a distance to exclude their mutual influence. The preparation scheme is applicable for two-bed mining.EFFECT: invention makes it possible to reduce time for preparation of block for mining, increase development rate.2 cl, 2 dwg

Steep incline conveyor unit for open working // 2636634
FIELD: mining engineering.SUBSTANCE: steep incline conveyor unit (1) contains a route (14) fixed on an inclined slope (10) of an open working. A first and a second lifting cages (15, 16) are movable along the route (14) between the lower level (12) and the upper level (13). The lifting cages (15, 16) are connected together by a common traction device (17). In the region of the lower level (12) of the route (14), there is a loading device (18) provided for filling the lifting cages (15, 16) with minerals (11) through a loading opening (21) from vehicles (19). The lifting cages (15, 16) comprise an discharge opening (23) located below the loading opening (21). It is possible to unload the minerals (11) from the lifting cages (15, 16) without changing their position through the discharge opening.EFFECT: possibility to load cages with transported mass equal to the load of the feeding vehicle.16 cl, 13 dwg

ethod development of complex coal deposits // 2634152
FIELD: mining engineering.SUBSTANCE: method involves creating required concentration of stresses by adjusting cutting force in a processing zone and forming breaking zones in the surface layer of the processed array with the help of cutting tools of the working tool of a shearer depending on rock strength characteristics, forming breaking zones considering strength characteristics of across the width of the processed surface. Selective development is performed providing reduction of coal regrinding by increasing spacing of coal cutting tools installation relative to spacing of rock cutting tools by two times. Rotation of cutting tools with discs is carried out in one side by rotation of shafts, on one end of which gears are installed which interact with hydraulic motor through a reducer, and fixing discs with the cutting tools in operation position automatically by stops.EFFECT: increased performance, reliability and expanded process efficiency of rock breaking with different degree of strength and adhesion, environmental efficiency.4 dwg

ethod of layer by layer mining of complex-structure deposits of solid minerals // 2634150
FIELD: mining engineering.SUBSTANCE: method can be used for open mining of mineral deposits with nonuniform distribution and complex configuration of ore bodies. The method includes milling of rock array with layers of fixed width and variable depth, selective extraction of rock layers with nonuniform distribution and complex configuration of rock in a plan and section, different qualitative and physico-mechanical characteristics of rock, formation of rock mass of controlled granulometric and qualitative composition loaded in dump trucks, supervision of dump trucks loading process control with the help of automatic control system and evaluation of rock mass quality, including sensors and information processing system installed on cantilevers behind working member of the milling machine, the sections of rock mass are preliminarily differentiated in layer by layer extraction of the array in a plan by elements by integrating average values of coverage area with fixed width of the milling machine working member, supervision and control of differentiated loading of dump trucks by loaders.EFFECT: increased performance, reliability and expansion of process efficiency of mining operations.2 dwg

ethod to weaken surface layer of open pit benches during seasonal freezing of rock // 2634149
FIELD: mining engineering.SUBSTANCE: method includes cutting of inclined slots on a slope and horizontal slots on a working platform by a working member of a disc-cutting excavator with milling cutters installed parallel to each other. Independent periodic and asynchronous superposition of oscillations to each of the milling cutters is carried out separately by means of vibration mechanisms, which frequency and amplitude oscillations are transferred depending on inclination angle of a telescopic rod, directions of cutting force by the milling cutters and physico-mechanical properties of rock controlled by sensors of automatic process control system and control of working systems of the disc-milling excavator. The adjustment of the milling cutters positioning with respect to each other is carried out along the guides by means of hydraulic mechanism.EFFECT: increased performance, reliability and process efficiency of frozen rock softening.2 dwg

ethod for developing steeply dipping deposits of solid mineral deposits // 2634144
FIELD: mining engineering.SUBSTANCE: method includes positioning an automated deep mining complex with relative to a face with consideration of the direction of the ore body deposition. The width of the ore body plane coverage in the horizontal is provided by means of complex positioning mechanism relative to guides, wherein information about the contours of the blasted rock is provided by rock contour control sensors to a system control unit. Synchronization of the bucket working cycle with cutting member is carried out by means of the control system and coordination of mechanisms operation with consideration of rational face formation, providing accumulation of rock at the face bottom and subsequent excavation of rock by the bucket. The bucket is mounted on stands secured to a carriage moving along a telescopic boom by means of cable winch.EFFECT: increased performance, reliability and expanded process efficiency of rock breaking with different degree of strength and adhesion.3 dwg

ethod for inclined ore bodies mining // 2632618
FIELD: mining engineering.SUBSTANCE: method for inclined ore bodies includes mining includes a descending order of stopes mining with subsequent collapse of hanging wall rock and construction of ore-rock silmat. Silmat is constructed on the boundary of the upper mined out stope with the underlying one with blasted ore and collapsed rock of the hanging wall by injecting hardening solution into the rock. The hardening solution is placed in wells drilled in the ore mass of lower stope near the boundary with the collapsed rocks of the upper stope. Injection of the hardening solution into the rocks is carried out before mining out the reserves of the lower stope due to blasts of explosive material charges placed in the holes drilled in parallel with solution holes.EFFECT: invention allows to reduce losses of ore.3 dwg

ethod for development of inclined ore bodies of medium width // 2632615
FIELD: mining engineering.SUBSTANCE: method for inclined ore bodies development of medium width, including the division of ore body into sublevels, advancing trenching and delivery drifts along the hanging wall in the sublevel, loading inclines therebetween, mining sublevel reserves with stopes located along the strike of the ore body and consisting of stope and intermediate pillar (IMP), then stope reserves blasting and aerial ore drawing, then IMP blasting to mined out stope area and the output of the IMP ore under collapsed rocks from the same loading inclines. Once headings are developed and stope reserves are drilled in the trench drift between loading inclines, the rock "crests" are formed of heading development rock, then stope reserves are mined out onto formed "crests". The stope extraction is performed with increased width due to formed compliant IMP of trapezoidal shape by reducing the width of the upper part of the rectangular IMP. After mass blasting of trapezoidal IMP combined drawing of ore is performed to the mined out stope under the collapsed rocks. First of all, aerial drawing of ore is made from loading inclines of stope trench sill, and then additional end-drawing of ore performed layer-by-layer remaining on foot wall, in IMP place, from the delivery drift by means of blasting the "brow" pillar with the subsequent drawing of blasted rock and ore contained therein.EFFECT: reduction of ore losses.7 dwg

Quarry // 2632612
FIELD: mining.SUBSTANCE: quarry includes a rib with capital automobile entry, located between the routes of steeply-inclined conveyor lifts, located along the borders of this rib with quarry ribs opposite to each other. The lifts come to the surface on opposite sides of the quarry and serve for delivery of ore to crushing and recovery plan and overburden rock to the overburden rock stockpiles. The rib with the capital entry also includes pads for crushing and reloading locations, serving for the crushing mudded ore and overburden rocks, and the tail sections of the steeply-inclined conveyor lifts. At the same time, the capital entry serves for dump trucks entry from working area of the quarry to unloading pads of both crushing and reloading locations.EFFECT: reduction of the volume of excavation of overburden for car arrivals from the working area of the quarry to the unloading sites of crushing and reloading points.2 dwg
ethod for depreservation steeply inclined nonactive sidewalls // 2632606
FIELD: mining engineering.SUBSTANCE: open pit mining method of deep laying deposits with utilisation of temporarily nonactive walls it is formed at a steep angle close to the limiting one. At the upper mark level of the temporary nonactive wall a horizontal pad is left and divided into separate blocks along the length including ready (blasted) ones and the ones prepared for rock mass excavation when the wall is depreserved. The blocks are mined out with hydraulic back-shovel excavators mounted on the roof of the mined benches with loading rock mass into vehicles at the same level and transportation to surface via declines located on the end wall of the pit, the height mined benches and entries width are taken based on the working parameters of the excavators (depth and radius of excavating), benches development is carried out layer by layer from top to bottom. When advancing mining blocks of the active bench to the sufficient dimension and ensuring cargo and transportion connection with the surface, parallel development of the next bench starts, and so on until the entire temporarily nonactive wall is depreserved. To protect benches located below the temporary nonactive wall against rock falls a rock protection area is built at its base along the entire length, including a platform for placing the falling rock mass, an embankment on which a hydraulic backhoe-type excavator is placed, and a transport platform. The rock mass falling on the rock protection area is loaded with hydraulic excavator into vehicles and transported to the surface. As the mining operations go down the rock protection area is moved to lower elevations, providing the possibility to increase height of temporary nonactive wall and the preservation volumes.EFFECT: decrease of current stripping coefficient within initial period of deposit development.3 dwg

ethod for forming and depreserving steep temporary nonactive walls when developing deep laying deposits // 2632604
FIELD: mining engineering.SUBSTANCE: open pit mining method for deep laying deposits with the use of temporarily nonactive walls coprises a horizontal platform formed under steep angle close to the maximum at the level of the upper mark of the temporary nonactive wall and divided during depreservation of a wall into separate blocks, including rock material prepared or ready (blasted) for the excavation. The blocks are mined out with draglines installed on backs of the mined-out ledges with unloading of the rock mass into vehicles located at the same level and which haul it to the surface via declines located on the final open pit wall. The height of the mined-out ledges and the width of the cuts are taken from the working parameters of the excavators (depth and radius of scooping), the ledges are mined layer by layer from top to bottom. When advancing mining blocks of the active bench to the sufficient dimension and ensuring cargo and transportion connection with the surface, parallel development of the next bench starts, and so on until the entire temporarily nonactive wall is depreserved. To protect benches located below the temporary nonactive wall against rock falls a rock protection area is built at its base along the entire length, including a platform for placing the falling rock mass, an embankment on which a hydraulic backhoe-type excavator is placed, and a transport platform. The rock mass falling on the rock protection area is loaded with hydraulic excavator into vehicles and transported to the surface. As the mining operations go down the rock protection area is moved to lower elevations, providing the possibility to increase height of temporary nonactive wall and the preservation volumes.EFFECT: decrease of current stripping coefficient within initial period of deposit development.3 dwg
ethod for developing coal with benching and backfilling in adjacent stope drifts of wangeviry type // 2632087
FIELD: mining engineering.SUBSTANCE: bench method for coal development with backfilling the adjacent stope drifts of wangeviry type. The main transport drift and adjacent stope drifts are arranged in accordance with the wangeviry method, selecting locations for a plurality of adjacent stope drifts at multiple development stages and perform benching according to the division into multiple development stages, and the coal pillars are not reserved between the adjacent stope drifts. The main transport drift is the main transport route, and the adjacent stope drifts are the drifts of mining coal. The extraction in all adjacent stope drifts is carried out consecutively with the benching method according to the design development sequence, as well as consecutive and in time backfilling is performed. The coal deposits in which excavation is not carried out or the backfilled adjacent stope drifts are used as supports for bearing back from both sides of the adjacent stope drifts. In adjacent stope drifts consecutive excavation is performed in several development stages and in the result the development is performed without coal pillars.EFFECT: method allows to perform effective control of cracks, caused by the development of upper layers and ground surface sagging, providing safety and efficiency of stope drift with coal squeezed under buildings, railways and water bodies, and effective control of ground surface sagging.2 cl, 5 dwg

ethod for steeply-dipping solid mineral deposits development // 2630023
FIELD: mining engineering.SUBSTANCE: method for steeply-dipping solid mineral deposits development including a milling machine for a dredging plant, which loosens the rock at the bottom of the pit's area, with the placement of loosened rock material in the trench for subsequent excavation of the rock mass by track scrapers of the dredging plant, following the milling machine without stopping it. At that milling machine and track scrapers are controlled by a remote control system of a dredging plant equipped with an operating system with control elements and fixing the functional enclosure and moving the milling machine and track scrapers. At that remote control device of the remote control system and the maintenance station of the dredging plant are located at the bottom of the first stage of the pit. The operating system registers the face area with the loosened rock mass prepared for extraction, a signal is sent to the track scraper control system with an indication of the area of the excavation of the loosened rock mass and the rational path of motion, and the sensors for monitoring the location of the operating system ensure safe movement of the milling machine and track scraper in the dredging pit area.EFFECT: increasing productivity, reliability, increasing the technological efficiency of mining operations, ensuring reduction stripping operations and improving safety of mining operations through the remote control system of the dredging plant.1 dwg

ethod for selective extraction of coal bed of variable thickness // 2629308
FIELD: mining.SUBSTANCE: method for selective extraction of coal bed of variable thickness includes preparation of extraction pillar by developing coveyour and ventilation drifts, breaking and loading the broken-down coal onto a face conveyor with the cutter-loader, destroying the under roof massive with a dynamic effect from the part of the support section with a striker and drawing the under roof massive onto the face conveyor. Separation of rock mass flows of is carried out due to temporary pauses arranged when they are loaded into a vehicle - the face conveyor. When preparing the extraction pillar by drilling wells into the massive above the heading, the thickness and the reserve volume of coal and raw materials, containing valuable elements are monitored. Identify geological disturbances-crimps and their spatial orientation within the excavation pillar. When approaching the crimp zone, the crown pillar is drilled with a number of inclined holes, the drill cuttings are collected and sent for analysis. If the extraction of the crimp zone interlayer rock is feasible then when entering the crip zone, breaking and loading of coal are suspended. After cleaning the face conveyor with the striker, the interlayer rock of the crimp zone undergoes the dynamic effect, then perform breaking, drawing and loading onto the face conveyor. After the loading of the interlayer rock of the crimp zone, the operations for breaking and loading of coal are repeated.EFFECT: invention enables to increase the efficiency of selective extraction.7 dwg

ethod for dredge work of placer deposits // 2629187
FIELD: mining.SUBSTANCE: method involves stripping in the contours of industrial reserves, reducing the thickness of productive deposits by cutting them to a depth, sufficient to mine out the remaining part with the dredge, moving the cut off productive deposits into the trench and dredging the prepared stocks. In this case, the trench is formed on unproductive areas located along the travel of the dredge, and the cross-section area of the cut off rocks of productive deposits in the trench is established from the ratio of the volume of these deposits and the length of the unproductive area. And the trench is formed with a depth, which ensures placement of productive deposits with the maximum permissible thickness for the dredge with the minimum allowable width of the face.EFFECT: increase the productivity of stripping and mining equipment by optimizing the parameters of the dredge, including by controlling the size of the sand bulks in the trench.2 dwg

ethod for chamber mining when preparing horizons // 2627803
FIELD: mining.SUBSTANCE: method of chamber mining when preparing horizons includes division of mine field into excavation areas, development of bed access drifts, extraction of mineral resources with stope chambers in advance or retreat order, delivery of ore with self-propelled equipment, transportation of ore using a conveyor, ventilation of stope chambers using local ventilation fan. Development of horizons is performed in turns, at first the upper horizon and then the lower one. Fresh air is fed through access drifts of the lower horizon, and the outgoing airstream is removed through access drifts of the upper horizon. The sill of the conveyor drift at the lower horizon is deepened relatively to the sill of the mining drifts. The upper horizon includes one transportation drift, and on the lower one includes the conveyor, from which entering the stope chambers is performed.EFFECT: invention allows to increase effectiveness of stope mining operations and reduce labor costs when extracting mineral resourses by eliminating development of ventilation holes and inter-chamber connections as well as to increase ventilation efficiency of the working area by arranging ventilation and removal of outgoing air stream from access drifts separately from the operation areas.3 cl, 5 dwg

Steam cutoff device for underground well in thermal-mining development of oil fields // 2625061
FIELD: oil and gas industry.SUBSTANCE: steam cutoff device includes a housing hydraulically connected to the wellhead, a main exhaust valve whose seat is installed in the bottom of the housing, and a float actuator of the exhaust valve. The cutoff device is provided with an additional exhaust valve, the seat of which is also installed in the housing bottom, the valve locking elements being arranged with the possibility to be sequentially opened into the housing by one float actuator. The float actuator of the exhaust valves is made in the form of a console hinged in the housing with the possibility of moving the cantilever in the vertical plane, at the free end of which the float is fixed, wherein the discharge valves are installed on opposite sides of the console. A rod, on which thrusts rigidly connected with the locking elements are freely mounted, is installed and rigidly fixed perpendicular to the console. The thrust length of the additional exhaust valve shutoff element is larger than the thrust length of the main valve shutoff element, each valve shutoff element being made with a guide shank on the bottom, whose length is larger than the full stroke length of the shutoff element.EFFECT: improved operation reliability of the cutoff device.3 dwg, 1 ex

ethod of operation of producing galleries of dip-working blocks at thermal development of oil fields // 2624838
FIELD: oil-and-gas industry.SUBSTANCE: invention relates to oil industry and can be used in thermoshaft development of high viscous oil. The method of operation of production galleries dip-working blocks at thermoshaft development of oil fields includes coolant injection into injection wells, collection of well production through production wells and pumping of the product to the surface from the pump chamber. In accordance with the method on the wellhead of each production well the drain pipes are installed which are downwards, and the ends of the drain pipes of all wells are on the same absolute level. The production gallery is isolated from other cavities of the dip-working block through the sealed waterproof bridges, each bridge has a pipeline to drain the well production with the suction nozzle oriented upwards, as well as the observation pipeline for well production level monitoring. On each line upstream of the sealed waterproof crosspiece thet shut-off valve is installed which is closed. The well production level is monitored by opening shut-off valves of observation pipelines. Upon reaching by the well production of supervisory pipeline level the shut-off valve of the respective pipeline is opened to drain the product, and the product is drained until the moment of coolant breakthrough through the drain pipe.EFFECT: invention provides improvement of working conditions of the operators in oil shafts while reducing the cost of ventilation of the dip-working block.4 dwg, 1 ex

ethod of the low and medium powered ore bodies preparation, cutting and mining // 2624490
FIELD: mining engineering.SUBSTANCE: method of the low and medium powered ore bodies preparation, cutting and mining comprises the producing block reserves development by means of a system "Horizontal slices with the consolidating stowing" with the downward working when the 3-slices stocks from one slicing cross cut are mined-out. The producing block is mined-out in parts of 3 layers at a layer height of 3 m, in a base layer - 0.0 m there is a layerwise cross cut. The crossing track to the sublayer is went through on completing of a work on a layer mining. The divided cross cut in the sublayer is went through. The layer mining is carried out from this cross cut. The ore transportation is carried out through the crossing track till the base layer millhole. All the actions are repeated for the third layer after the layer mining. The cleaning stopes are discharged by the consolidating stowing at all layers after the actual mining. The layerwise cross cuts are not discharged by the consolidating stowing.EFFECT: invention allows to keep costs on the ore crop down, to enhance the blocks stocks mining tempo, to cut down the scopes of first mining and stowing operations.2 cl, 3 dwg

ethod of ore radiation by ore observation with application of plates // 2623382
FIELD: mining engineering.SUBSTANCE: in the process of ore crushing using a plate running in a stable mode, operate the crushing device in the form of plates mounted in front of a hopper consisting of the constituent elements, for example steel blocks (cubes, or short rods) embedded into the steel base of the cells, and the mass metal construction commensurate magnitude of impact loads (drop height and ore size pieces), and operating in the dynamic mode. To stabilise the operation of the crushing device, it is placed in a vessel like a box of blocks, on the bottom of which a material of the sand type is poured, which ensures the deformation of the crushing device in the form of a plate, in a vertical plane (vertically), and the metal box is mounted on a reinforced concrete or rock foundation made with a slope of 5-6° toward the array to exclude bias towards the hopper, and link them with strings and anchors with a side array for stability. The box does not have the freedom of displacement in the horizontal plane also because of the pancake-shaped design. In the process of work, the dismountable design allows replacing the decommissioned ones due to the use of steel cubes or rods, collecting the crushed material is produced in a hopper whose slope from the vertical varies depending on the energy loads and the height of the falling pieces and is 45-50° for deep rudispours.EFFECT: increasing the efficiency of bypass works, increasing the degree of crushing ore.8 dwg
ethod of atmospheric open-cast fumes prevention // 2622062
FIELD: mining.SUBSTANCE: method of atmospheric open-cast fumes prevention involves creating barriers in the way of movement of the dust cloud, its localization by placing a shelter in the open-cast working areas. A grid with a mesh size of 50 to 100 mcm and a height H calculated according to the above mathematical expression is set on the windward open-cast side, perpendicular to the movement of the air flow.EFFECT: reduction of dust load on the atmosphere of the open-cast and its location area.2 dwg

ethod of mineral deposits mine development which are dangerous according to gas dynamic and geodynamic phenomena // 2620687
FIELD: mining.SUBSTANCE: in the face the gas flows are separated from the explosive dust, the isolated production is prepared, isolating it from the worked out area of the face with an abutment with a manhole and a bulging shockproof damper. The nozzle of the suction gas pipe is fixed to the roof at the mine face, and the nozzle of the dust duct is installed in the lower part of the worked out space on its soil. Fans of local ventilation are turned on for the suction from the face, for the suction to the isolated working, where, together with mixing gas flows with mine dust, gas-saturated dust and coal briquettes are produced, mixing the mineral deposits detrital products and surrounding rocks, compacting them with pressure. The strength of the resulting briquettes is increased by the addition of binders, for example petroleum bitumen, and the resulting mixture is extruded through the calibration holes into the briquette container. The briquettes are then dried and sealed.EFFECT: prevention of explosions of gas and mine dust generated during mining operations and excavating by modern high-performance complexes, the use of these gases and dust for the energy-intensive briquettes manufacture and the elimination of emissions of harmful substances into the atmosphere.2 dwg
Ore body mining method // 2618541
FIELD: mining.SUBSTANCE: within the ore body, the well fans are drilled, charged and short-delayed detonated. The distance between the ends (bottoms) in the fan outer wells and the contour of the ore body is determined taking into account explosive detonation parameters, physical-technical properties and fracture parameters of the ore body, and the magnitude of rock pressure.EFFECT: size reduction disorders of hosting rocks and ore reduction dilution during its shipment, reducing the volume of the drilling and weight BB.1 tbl
ethod of sludge pits reclamation without their backfilling on forest fund territory of russian federation in middle taiga subzone of western siberia // 2617632
FIELD: construction.SUBSTANCE: method comprises arranging the sectional sludge pit with the double bonding, waterproofing the sludge pit walls and bottom, placing the drilling waste, pumping out the liquid phase followed by planting plants. Moreover, the sludge pit is divided into sections by jumpers of the trapezoidal shape, around the pit perimeter (except for the drilling rig side) the impervious trench is arranged, into which waterproofing film is laid, with the subsequent backfilling with soil and erecting the perimeter bonding with the height of at least 1.0 m above the sludge pit filling level, the sludge pit bottom and walls are insulated by clay solution with the thickness of not less than 0.1 m; drilling waste of the hazard class no higher than IV is placed in the sludge pit, the drilling waste surface in the sludge pit is not backfilled, but remains open to the ultraviolet sun radiation and air oxygen impact on the drilling waste. After the liquid phase clarification and the drilling waste consolidation, the liquid phase is pumped out, willow cuttings are planted on the shelves, bonding slopes and intersectional jumpers, cattail is planted on the water edge.EFFECT: increased sludge pits reclamation efficiency.1 dwg

Thermoshaft high-viscosity oil development method // 2616022
FIELD: oil and gas industry.SUBSTANCE: thermoshaft method for high-viscosity oil development includes heat carrier injection into injection wells of slope oil well block, and subsequent oil extraction. Technological oil extraction mode through production wells is carried out cyclically, alternating with regime of oil accumulation in wells and adjusting the air flow for ventilation of mine workings for each mode. Wherein the air flow is determined depending on thermal factor formed from constant and varying heat flow from the formula Qa=Gaρa, where Qa is air flow of main ventilation fan, m3/sec; ρa is air density in mine workings; Ga is mass of air flowing through mine workings, kg/s, determined by the formula wherein ca is specific heat of air, ΔT"г.р." is boundary conditions temperature difference, °C; Qh.f. is heat flow capacity, kW. Air supply control is carried out via main fan installation in manual and automatic modes. Air supply to mine workings is reduced in oil accumulation mode with closed production wells valves, and full supply of calculated amount of air is carried out in oil extraction mode with open production wells valves.EFFECT: improved energy efficiency of development method.1 tbl, 5 dwg
ethod of high environmental capacity antierosion piles mine technical reclamation // 2615533
FIELD: mining.SUBSTANCE: method includes dumping the pile upper layer with potentially fertile soils and formation of basin uneven cell structure that provides a variety of potting soil mechanical composition and moisture regime for the successful natural vegetation overgrowing with various environmental requirements, and excluding the precipitation runoff. The number of extractions ensuring maximum water harvesting is calculated by a mathematical formula.EFFECT: universal method of pile antierosion mine technical reclamation.
ethod of arrangement of semi-steep trench // 2614835
FIELD: mining.SUBSTANCE: method provides arrangement of semi-steep trench by means of hydraulic backhoe excavators and motor transport capable to pass steep slopes. The trench after the rock mass blasting out within its borders is arranged in several stages, by dividing the steep trench into horizontally wedge-shaped layers by the height defined by maximum depth of excavator digging. The slope of the upper layers wedge-shaped parts base is taken as technical, equal to excavator gradeability. The wedge-shaped part base slope of the lower last layer is considered as technical, equal to the steep slope of the trench in the final position. The upper layers contoured in such a way are worked off with the excavator lower digging consistently from top to down. The horizontal part of the lower last layer is worked off with an excavator lower digging. The remaining wedge-shaped part, enclosed between the technical and technological bases of the wedge-shaped layer part, is moved with a bulldozer beyond the trenches, where it is loaded into vehicles and taken to the surface.EFFECT: invention can improve development efficiency.4 dwg
Dredge work method of watercut placer mineral deposits // 2614337
FIELD: mining.SUBSTANCE: method includes preparation and extraction works, dressing and dumping, the construction of dams around the mining equipment and the stock, prepared for working out during the winter season, upon the occurrence of sustained freezing temperatures the works are carried out in the shed, placed on the dam and mine development is carried out at the maximum possible height of the dredging section freeboard, while moving the shed with dredge begining to move.EFFECT: reduction of the shed construction costs, which will significantly extend the mining season.1 dwg

Device for dredge work of deposits during winter // 2614175
FIELD: mining.SUBSTANCE: device includes a dam around the mining equipment and a sliding shed, placed on it with a transparent insulating roof. Wherein the shed is made of polycarbonate, on the entire surface of which there are double-convex lenses in staggered rows.EFFECT: protection of heat inside the shed.1 dwg
ethod of producing oil technogenic deposit in litosphere // 2612425
FIELD: oil and gas industry.SUBSTANCE: method of producing oil technogenic depost in the lithosphere comprises the drilling of injected and extraction wells to the depth of the lithosphere with pressure of 8-10 MPa, temperature of 125-200°C and reservoir porosity of 10-20%, feeding non-treated urban waste waters to the injected wells with organic matter content not less than 100-300 mg/l and volume of not less than 20 thous. m3/day, carrying out a hydraulic fracturing, maintaining wastes to form a technogenic oil and its subsequent extraction to the daylight surface. Drilling of wells is carried out at a distance calculated based on the rate of organic water migration and a period of technogenic oil synthesis.EFFECT: method allows to obtain industrial quantities of oil while simultaneously utilise human livelihood wastes.

ethod of open mining of steep dipping field having round form using temporary nonworking sidewalls // 2612178
FIELD: mining.SUBSTANCE: invention relates to mine industry and can be used during opening and open mining of deep laying steep dipping fields having round form and using temporary nonworking sidewalls. For this the method and open mining of steep dipping fields comprising forming of the work zone, a process of mining of open-pit benches, and ensuring load transportation link of work horizons with surface, a pit space through depth is divided to two zones, in top zone at side of laying sidewall a first queue of mining is allocated adjacent to the end sidewall of the borrow-pit, and opening are formed, at side of hanging sidewall the first queue is limited by the temporary nonworking sidewall with inclination angle close to the limit angle, and opening drifts are located on it. Base of the temporary nonworking sidewall has horizontal sites protecting against rockfall, their width is accepted considering location of the slope out of falling rocks, embankment protecting against stones with installed hydraulic excavators of backhoe type and motor roads. After first queue development the second queue of borrow pit formations is started, i.e depreservation of temporary nonworking sidewall and development of the adjacent volumes with simultaneous decreasing of mine works in central part of the borrow pit. Wherein development of volumes during depreservation of the temporary nonworking sidewalls performed during longitudinal movement of radially oriented front of mine works. Mined rock falling during depreservation of the temporary nonworking sidewall downward on the stone protecting site is loaded to vehicles by a hydraulic excavator installed on the stone protecting embankment, and removed to surface. On the formed end sidewall the opening mine workings are arranged instead of lost due to depreservation of the temporary nonworking sidewalls. During further decreasing of the mine works at side of the hanging sidewall one additional nonworking sidewall is formed, also with stone protecting site in its base, wherein the additional nonworking sidewall is depreserved by a method used during depreservation of the temporary nonworking sidewall of the second queue.EFFECT: invention reduces current overburden ratio during the initial period of field development.3 dwg
ethod for recovery of exhausted open pits for construction of cemetry // 2611750
FIELD: construction.SUBSTANCE: method involves separate excavation, removal and storage in separate tape piles of topsoil and overburden, development of career fields, filling of exhausted space to the boundary of the upper level of ground water with construction waste, similar by composition to natural minerals with various grain size fractions, layered with followed consolidation of each layer, laying of drainage layer of building waste, with the grain size fraction 150-200 mm. Above the drainage layer an intermediate layer is backfilled with construction waste with the grain size fractions less than 120 mm. Backfilling is performed until the moment when the upper boundary of the intermediate layer reaches 1/2 of the height of exhausted space of the pit. Then, above the intermediate layer the initial backfilling of exhausted space of the pit with the mix consisting of waste rock, clay and crushed building waste with the grain fraction sizes less than 100 mm mixed in equal proportions. Moreover backfill is performed layer by layer with the thickness of each successive layer no more than 1 meter with compaction of each layer. This operation is performed before complete filling of exhausted space of the pit. Along the surface graded by bulldozer the surface of exhausted space of the pit is backfilled with the mix of sand and gravel, fraction 5, mixed in equal proportions with the minimum layer thickness 100 mm.EFFECT: decrease of labour cost of recovery works, as well as soil protection from wind and water erosion.
Recovery method of mined-out pits for construction of cemetery // 2611749
FIELD: mining.SUBSTANCE: invention relates to the technical recultivation of mining pits remaining after the excavation of building stone and other subsurface minerals. The method includes separate excavation, movement and storage of the soil layer and overburden rocks to the seperate belt-type dumps, mining of the open-pit field, filling of the mined space to the border of the upper level of ground water with construction wastes close in their composition to natural minerals with fractions of various size, layer by layer with further compaction of each layer, laying of drainage layer with construction waste with fraction size of 150-200 mm. An intermediate layer is laid on top of the drainage layer with construction waste with fraction size of no more than 120 mm until its upper boundary reaches 1/2 of the height of a pit mined space. Initial pit mined space infilling is performed on top of the intermediate layer with an equivalent mixture of overburden rocks, clay and construction waste scrap with fraction size of no more than 100 mm, wherein the infilling is performed layer by layer with thickness of every next layer of no more than 1m and with compaction of each layer until the complete filling of the pit mined space. Then the whole surface is levelled by a bulldozer. The pit mined space infiliing is performed on top of already levelled by a bulldozer surface with an equivalent mixture of sand and gravel of fraction 5 with layer thickness of no less than 100 mm and with further planarization.EFFECT: invention provides reducing labour costs of recovery work.
ethod of tailing dump in mountain trenches recultivation // 2611075
FIELD: ecology.SUBSTANCE: invention relates to mining industry environmental safety and mountain landscapes protection against chemical contamination, coming with surface and underground water flows on tailing dump side. Method involves recultivation by means of loamy layer application and compaction. At that, recultivation is performed in three stages, first forming trenches in 15–30 m from tailing dump coastal zone (beach), with depth below tailing dump bottom for 3–5 m, with width of 1.5–2 m, with subsequent excavation of carcinogenic substances bottom deposits from tailing dump bottom, which are transported and stored in spent and abandoned mines at depth of past mining operations, and tailing dump bottom is filled with irlit-containing absorbent clays, creating geochemical barrier for water flows on tailing dump side.EFFECT: technical result is creation of geochemical barrier for protection of surrounding landscapes against further spreading of chemical contamination, simplification of tailing dump reclamation.1 cl, 2 ex
ethod of extraction of minerals of pillars // 2610456
FIELD: mining.SUBSTANCE: invention relates to mining and can be used in mining of pillars, left during mining operations by underground method. Method of development includes working out of left pillars with development threaded openings, breaking and discharge of broken ore to bottom level. Opening of left pillars is performed from openings, made in roof. In pillars in descending order cylindrical chambers are made, wherein parameters of cylindrical chambers are determined considering acting stresses in vertical direction and coefficient of non-uniformity of distribution of stresses near mine kh, in zone of increased overburden pressure kn = 2, in zone of unloading kh = 0.5. Breaking and discharge of broken ore are performed at bottom level with possibility of filling of mined space.EFFECT: invention provides higher efficiency of ore extraction from abandoned pillars.1 cl, 4 dwg
ethod for underground mining potassium salts deposits affected by breachings or floodings // 2608140
FIELD: mining.SUBSTANCE: invention relates to mining and can be used in underground mining potash deposits. Method is used for deposits affected by breakthroughs or floodings. Method comprises a construction of vertical water protection artificial arrays. Mine field is opened by vertical shafts and, then, divided into scourings, after that, the scouring to be mined is opened from below by two vertical short jack shafts. Stoping the panel is being performed. When breaching salt water in mine workings of the mineable panel, both jack shafts are is plugged and then cleaning operations on the other panel is being started.EFFECT: excluding entry of water from the point of breaching salt water into adjacent panels during mining a deposit.1 cl, 1 dwg

Thick flat dipping ore deposits at big depths development method // 2607131
FIELD: mining.SUBSTANCE: invention relates to mining industry and can be used during underground development of thick, more than 10–15 meters, flat dipping to 20–25 degrees ore deposits at deep depths, of more than 500 m. Method involves conducting of preliminary preparatory driving, ore withdrawal by chambers at ore body full capacity with leaving ore pillars, induced overlying rocks caving into chambers space at height of not less than ore body thickness, breaking of pillars and ore output from pillars under caved rocks. Prior to pillar mining forming protective layer along ore body soil by penetration and backfilling of mines with hardening mixtures. For protective layer openings filling ventilation and filling level is created, which also serves for overlying rocks caving into chambers space and outgoing air stream outlet. Above protective layer protected area is formed, where rock pressure is considerably lower, than in array outside of this zone, and pillar mining is performed by chamber-pillar development system with overlying rocks caving within this zone. At large depths with use of chamber-pillar development system with overlying rocks caving this condition enables to increase chamber robbing volume, chambers width, reduce pillars dimensions, achieve optimum losses parameters and ore dilution with considerable increase in safety of works.EFFECT: more output from chambers is performed by loading and transportation machines, both with manual and remote control, rock from vent-filling horizon workings tunnelling is delivered into exhausted chambers.1 cl, 3 dwg

Intelligent system for automatic monitoring of quality and quantity of ore flow in process of preparation for concentration // 2605861
FIELD: measurement technology; mining.SUBSTANCE: invention relates to automatic continuous monitoring of qualitative and quantitative characteristics of ore flow during its preparation for concentration. Device contains automatic ore weighers and camera with video driver. Camera eyepiece is directed onto ore surface on vehicle. There is also video camera image processing unit, magnetic sensor of iron concentration in supplied ore, marking scanner of ore for decoding of qualitative and quantitative compositions of delivered ore corresponding to product passport. There is complex data unit in form of digital cluster decoding of markers of ore supplier. Device includes recording unit of ore chemical composition, automatic weighers of supplied ore, at least one unit of ore size assessment, at least one movable X-ray spectrum analyzer of chemical-mineralogical composition of ore. There is computer system evaluating nature of splices and calculating average number of target minerals in crushed ore particles and calculating percentage of desired minerals in ore flow. Device comprises at least eight elements of comparison of measured signals of parameters' character generated at output of said means of continuous and testing monitoring of quantitative and qualitative characteristics of processed ore. Video camera output through camera image processing unit in sequence via unit for estimating size of pieces and particles of ore is connected to one of computer system inputs. Output of markings reading scanner of supplied ore is connected to input of digital cluster decoding of markers by qualitative and quantitative composition of supplied ore by passport, corresponding decoding marker of supplier. Wherein one output of unit of registration amount of supplied ore is simultaneously connected to first input of comparison element and one input of computer system. Other output of chemical composition unit of supplied ore is connected to first input of comparison element and another input of computer system. Output of automatic weighers is simultaneously connected to another input of comparator for comparing quantitative values of weights of ores and one of inputs for taking accounting quantitative values of ores.EFFECT: increased efficiency of monitoring and reliability.1 cl, 2 dwg

ethod of stone blocks production // 2605100
FIELD: mining.SUBSTANCE: invention relates to mining industry and can be used in stone blocks production. Method includes formation of bench, block delineation by blast holes system located in vertical, side and horizontal planes, blast holes filling with not explosive destructive means, block separation from formation by creating of stretching forces along its contour, bench side surface is formed with angle of 90°, in vertical blast holes arranged along block length sections of detonation cord are placed and sealed with plug, initiating detonation cord and block is shifted into stripped area under detonation wave effect.EFFECT: higher safety of operations, excluding of additional works on chipped off block displacement and obtaining of regular-shaped blocks.1 cl, 2 dwg

ethod of dumping at open development of mineral deposits // 2604072
FIELD: mining.SUBSTANCE: invention relates to mining industry and can be used for dumping at open development of mineral deposits. Method involves extraction of overburden rocks, their transportation to dumping site and unloading in dumping front in separate stock piles, located parallel to each other, on inner slopes of which most fine overburden rocks are unloaded, and between them pasty tails are stored after ore concentrating processing along the central axis of the space confined by stacks of overburden rocks, with excess of discharge point “A” above the upper platform of pile of overburden rocks. Wherein height of filling with pasty tails of space, limited by stock piles of overburden rocks, shall not exceed the value determined by mathematical formula.EFFECT: technical result is increase of volume of space filled with pasty tails, limited by stock piles of overburden rocks, that, as a result, leads to rational land management.1 cl, 1 dwg
 
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