Method for developing steeply dipping deposits of solid mineral deposits

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

 



 

Same patents:

FIELD: mining operations.

SUBSTANCE: invention relates to the mining industry and can be used in stripping and mining operations at the fields, composed of dense and semi-hard rocks, with use of boom surface miners, spreaders and other mining machines. The method comprises continuous extraction and direct overburden waste disposal, continuous extraction, transportation, sorting of mineral resources. The front of mining operations is located along the short axis of the career field, the continuous working of overburden bench of high altitude is performed simultaneously on two sub-benches using boom surface miners. The overburden on the conveyors of the boom surface miners is fed through the receiving devices to the conveyors of the loading consoles of the spreader. The process of combining the conveyors of the boom surface miners with the receiving devices of the loading consoles and positioning of the spreader relative the boom surface miners is provided by the automatic control system. The mining operations are carried out with the use of excavating milling machine, the mineral resources are fed by the loader to the hopper of the mobile reloading unit with a conveyor and then to the mobile-sorting unit.

EFFECT: increase of the productivity of mining operations in the development of deep deposits of mineral resources composed of dense and semi-hard rocks.

2 dwg

FIELD: mining.

SUBSTANCE: method of development of solid mineral fields using the excavating milling machine and scrapers comprises the use of the excavating milling machine for rock loosening with placement of milled rock mass into the dug-out trench from which it is taken by the scraper which follows the excavating milling machine continuously without stopping. The scraper scoops the rock mass to the ladle by means of the loading tray which fills the front part of the ladle with rock mass and then moves using a rake wall, and the released front part of the ladle is filled with rock mass again. Hydraulic cylinders of the tray control mechanism lift the loading tray with rock mass for final filling of the ladle front part. The ladle is unloaded through the formed slot between the ladle bottom and the loading tray lifted in guides by means of the back wall which moves to the front part of the ladle with the rake wall.

EFFECT: method improves the operational reliability and productivity when performing stripping and mining works on the fields formed by dense and hard rocks using excavating milling machines and scrapers.

2 cl, 9 dwg

FIELD: mining.

SUBSTANCE: this process comprises open coal extraction by cut chambers, production of barrier posts and backfilling of said chambers. Drilling hardware represents a milling driller located on day surface with drilling tool inclination of 45-90 degrees from vertical line. Note here that coal removal from blocks is performed with the help of hydraulic drawing device at liquid-to-solid ratio equal to 1:3. There, coal pulp is directed to coal dewatering to 7-8 % while effluents are forced to desliming and circulation.

EFFECT: higher efficiency and safety of edge seams development.

6 cl, 3 dwg

FIELD: mining.

SUBSTANCE: method comprises the cleaning of coal bed or beds by striking by open mining operations and installation on a bed of a drilling unit, for coal drilling-out at an angle from 60 to 90, with reference to the bed strike axis, and to the depth 100 meters and deeper. To increase a productivity of coal extraction, and also to decrease of load on the cutting working body in case of emergencies, a bucket auger is formed by two parts, namely the cutting working body and a lift cylindrical ladle connected to each other by the coupling device. Inside the bucket auger an auger-drill element for loading of minerals into the lifting cylindrical ladle is installed.

EFFECT: improvement of efficiency of development of steeply pitching coal beds and environmental safety of mining operations.

7 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention relates to open development of mineral fields, more exactly to open development of the long steep dipping fields with internal dumping. Method when borrow pit length is divided to turns, from them first turn is developed to design depth with external dumping, and second turn is developed using internal dumping, locating overburden to the developed space of the first turn with common formation of the dumping tiers with progress of mining towards end through full depth. At that the work zone through height is divided to two parts, bottom part opening and development are performed by longitudinal inclined layers with lifting 20-25% towards end using the wheel loaders and vehicles able to move over these steep grades, height of the bottom part is determined as per mathematical equation. The top part of the work zone is developed using the transverse development system and sliding access tracks, their width is accepted based on the condition of their use for dumping of the exploded rocks upon their widening and simultaneous assurance of two-way passage of vehicles ensuring the cargo movement between the bottom and top shelves, the longitudinal inclined layers of the bottom part of the work zone are developed by separate formed in series from top to bottom near-vertical-horizontal layers with maximum height, determined considering trajectory of the loader bucket movement, during development of each successive near-vertical-horizontal layer the rocks are preliminary loosened, the loader excavates it and loaded in vehicles located at horizontal sites at minimum distance to the mine working.

EFFECT: technical result is decreased additional sides spacing to arrange the opening mine working, and reduced distance of overburden transportation from the work zone of the borrow pit to the internal dumping.

2 dwg

FIELD: mining operations.

SUBSTANCE: method comprises the construction of three artificial elements: impervious screen, a protective berm, a protective coating. And the impervious screen is created by drilling of inclined wells of large diameter in the winter period from the upper site of the ledge nonworking edge side most affected to thawing, parallel to the slope surface at its full height followed by filling them with ice rock stones, chilled fresh water and freezing with natural cold, and the protective berm is erected over the mouth parts of the wells, starting from the upper edge of the ledge of the tapered section of calculated height, using layered freezing of overburden rocks, which in the summer period, including the surface of the ledge slope, to prevent thawing, covered with the protective coating, which is made in the form of removable flexible moisture-heat- and light-reflecting mat, removed with the onset of winter, the thickness of which is determined based on the mathematics.

EFFECT: prevention of thawing of frozen rocks of non-working ledge edges of pits.

1 dwg

FIELD: mining.

SUBSTANCE: method comprises preliminary loosening of a block of rocks and half-rocks by simultaneous massive drilling holes in it with the maximum density across the whole area of the block prepared for extraction, using a multibar drilling unit, followed by the extraction of rock by machine ways destroying the rock solid blocks between the holes.

EFFECT: complete elimination of harmful effects on the environment and the operational staff at drilling and blasting loosening rocks.

2 cl

FIELD: mining.

SUBSTANCE: invention relates to the method of open mining of mineral deposits with creation of a dump. The method includes separation of career space by zones, height and pit perimeter, cutting of ledges and horizons on which overburden and mining works with removal of rocks by truck or by rail into dumps and via ore chutes to reloading points are conducted, and dumps are built up using the cyclic action facilities. Meanwhile a convex form of a working edge is formed, gradually being fitted into the edge differentiated by steepness on a final contour which is built up in view of minimum disturbance of walls of slopes and a edge according to the technology with minimum consumption of explosives (E) with removal and dumping of rock into a main dump located near a zone of overburden works outside a contour of a steep edge of a pit of the 1st phase; initially temporary dumps are used with self-transportation of rocks outside a pit, and with their partial re excavation, provide the minimum shoulder of tramming of rocks and ore using the crushing reloading points and conveyors from inclined planes on the top horizons to the steep and vertical at completion of a pit. And with deepening of mining operations the overburden zone is divided into two sites and rock is moved by combined transport from two sides into a dump under construction parallel to a edge slope in view of deformation of its separate sites, and rock dumping on a dump after crushing is carried out by line transport facilities using the mobile console, the minimum shoulder of tramming of rock and ore and costs of development of mountain weight on the first and the subsequent stages (turns) are ensured, and the first two layers of a dump are dumped according to cyclic and line TsPT technologies using motor transport or loaders (at re-excavation of rocks) that provides stability and robustness of the dump front according the developed technology of dumping, at the final stage the third layer is dumped, and the fourth layer of dump if necessary, according to its calculated volume and height and limit depth of a pit.

EFFECT: improvement of efficiency of field development during construction of a dump with large volume and height at decrease of costs of stripping and improvement of safety of dumping.

4 dwg

FIELD: mining.

SUBSTANCE: after performance of drilling and blasting operations in an overburden bench during layer-by-layer excavation of the blasted rock to an extended bench and a final blade circuit on the formation roof of the mineral deposit within excavation heading throughout the length of the slab there left is a layer of the rock with negative temperature. This allows developing a zone of stable freezing, warming it up and strengthening it by action of solar insolation during development of the upper part of the breakdown. The rest rock layer is excavated to a final blade circuit after disposal of the upper part of breakdown throughout the length of the excavation slab.

EFFECT: reduction of influence of repeated freezing on productivity of a drag line and provision of its stable operation during excavation of blasted rocks of an overburden slab.

3 tbl, 2 dwg

FIELD: mining.

SUBSTANCE: method involves positioning of an automated complex for deep development relative to the working face considering the direction of ore bodies settings. Control of mine rock parameters is performed by means of control sensors of physical and mechanical characteristics of mine rocks for adjustment of a mine rock cutting force considering rotation speed of a working element and movement speed of the working element in a vertical plane throughout the cutting depth and cutting direction by means of hydromechanisms of telescopic retraction and a turning mechanism of the head section. Width of capture of the ore body plane in a horizontal direction is provided by means of the positioning mechanism of the complex relative to guides; with that, information on circuits of destructed mine rock is sent from control sensors of mine rock circuits to a system control unit.

EFFECT: increasing productivity, improving reliability and enlarging technological efficiency of destruction of rocks of different strength and coherence degree by controlling a cutting force in a zone of processing and formation in a surface layer of the processed massif of destruction zones considering strength characteristics of rock.

2 cl, 3 dwg

FIELD: physics; control.

SUBSTANCE: invention relates to network infrastructure for mobile machines used in explosion hazard areas. Network infrastructure for mobile machines used in explosion hazard areas, having subscribers with inherent safety and having network subscribers without inherent safety, placed in pressure-resistant housings. The machine has at least one controller, placed in a pressure-resistant housing, for triggering at least one subscriber without inherent safety. The machine has, outside the pressure-resistant housing for the first controller, at least a second controller with inherent safety for triggering at least one subscriber with inherent safety. The first controller forms a data distributor for the plurality of subscribers without inherent safety, and the second controller forms a data distributor for the plurality of subscribers with inherent safety, wherein the first data distributor and the second data distributor have an electrically decoupled data channel between them.

EFFECT: creating network infrastructure for explosion hazard areas.

10 cl, 6 dwg

FIELD: mining.

SUBSTANCE: method of determining a position of mechanisms in a working face in underground mining is provided, comprising the following steps: a video camera is mounted in a roof timber area of a roof support with the viewing direction mainly in the direction of an air flow, or opposite it, the camera is oriented so that the vanishing point of the image from the camera is in the area of the right or the left upper corner of the image from the camera, illuminated markings are provided on the mechanisms along the working face in the area of the image from the camera and they are operated, as well as the positions of the mechanisms are determined by means of electronic processing of the markings located on the camera image. Also a system and a video camera for implementing the method are proposed.

EFFECT: providing the opportunity of simultaneous monitoring of the straightness of the working face, recording of a vertical and horizontal deflection of roof supports and the conveyors, controlling automatically the stroke of the roof supports, or to monitor the mining machine.

10 cl, 5 dwg

FIELD: mining.

SUBSTANCE: method involves positioning of an automated complex for deep development relative to the working face considering the direction of ore bodies settings. Control of mine rock parameters is performed by means of control sensors of physical and mechanical characteristics of mine rocks for adjustment of a mine rock cutting force considering rotation speed of a working element and movement speed of the working element in a vertical plane throughout the cutting depth and cutting direction by means of hydromechanisms of telescopic retraction and a turning mechanism of the head section. Width of capture of the ore body plane in a horizontal direction is provided by means of the positioning mechanism of the complex relative to guides; with that, information on circuits of destructed mine rock is sent from control sensors of mine rock circuits to a system control unit.

EFFECT: increasing productivity, improving reliability and enlarging technological efficiency of destruction of rocks of different strength and coherence degree by controlling a cutting force in a zone of processing and formation in a surface layer of the processed massif of destruction zones considering strength characteristics of rock.

2 cl, 3 dwg

FIELD: mining.

SUBSTANCE: invention relates to mining, particularly, to coal-mining industry. Proposed method of determination of location of position of mixing excavator comprising at least one face conveyor (8), shield support system (1) including multiple frames (2) and excavator (6) displacing along face conveyor (8). Note here that at least the position of one component is defined with the help of evaluation system. Note also the said evaluation system comprises at least one detection unit (25). To define position of at least one plant component, even in dynamic excavation, at least one detection (25) unit comprises one image pickup that allows detection of object four points (21) located at preset distance from each other to be detected in wavelengths of optical band. Plant component position can be defined with the help of the system of evaluation by the object projection points detected by image sensor.

EFFECT: possibility to measure absolute and relative location of excavator components.

27 cl, 9 dwg

FIELD: mining.

SUBSTANCE: method of development comprises preparing of the extraction column carrying out conveyor and ventilation drifts, preparing of winning band by performing off end and near slopes along the downwards line at the soil of layer from the conveyor to the ventilation drift on both sides of the band, performing the mounting chamber at the ventilation drift, mounting of sections of aggregated timber in it, coal extraction with low-inclined layers by the shearer of front action and transportation of coal along the bottom hole of self-propelled car to off end slope , in inclination of the extracted layer towards the near slope, or to the near coal chute slope, in inclination of the extracted layer towards the off end slope, change in the direction of inclination of the layer and turn of the combine in the chamber, which is carried out outside of the winning band. And the self-propelled car is equipped with an automated control system. At that from the overlap of each section of the aggregated timber towards the soil layer a signal is given, corresponding to the order number of the timber section, this signal is received by the receiving device mounted on the self-propelled car, and is transmitted to the automated control system. After changing the direction of inclination of the layer setting up of the control system of the self-propelled car is carried out, which, depending on the combination of numbers of the received signals and the degree of loading the body, ensures actuation of actuators of the self-propelled car - movement back and forth, drive-brake, loading-unloading, stop.

EFFECT: increased efficiency and safety of the development of powerful steeply inclined layers due to organisation of the automated control system of the self-propelled car for transporting loosened coal.

3 dwg

FIELD: mining.

SUBSTANCE: control method of a shield of a tunnel boring complex consists in the fact that the shield is controlled in two planes by means of control systems in vertical and horizontal planes. By means of measurement equipment there determined are inclination angles of an actuating element relative to vertical and horizontal planes, signals as per speed of change of the inclination angle relative to vertical and horizontal planes, linear displacements in vertical and horizontal planes, and speeds of change of linear displacement in vertical and horizontal planes. The above signals are supplied to a control unit as per four coordinates, where they are compared to the task; after that, based on error signals, a relay control law of the actuating element is created. The invention also proposes a tracking control system of the shield of the tunnel boring complex, which includes the following in-series connected components: an optic direction setting device, a beam deviation unit, a membrane, a photoelectric receiving device and a four-coordinate control unit the input of which is connected to an inclination angle measurement unit. In addition, the device includes a state observer unit the input of which is connected to the inclination angle measurement unit and the output of which is connected to the control unit.

EFFECT: improving accurate and reliable control of movement of a shield of a tunnel boring complex.

2 cl, 4 dwg

FIELD: mining.

SUBSTANCE: there proposed is the method of automatic obtaining of specified bottom-hole region in the acting working faces in underground mining of bituminous coal, where by means of tilt sensors mounted on, at least, three out of four main structural details of movable shield framing there defined is the tilting of shield details relatively the horizontal, and calculation machine unit calculates the height of shield framing corresponding to the formation. Besides, there performed is the recording of step movement of each framing of movable shield and there defined is the depth of shearer cut with drum executive mechanism at each winning step. Also by means of sensors mounted on shearer there recorded is the height of shearer cut. By means of bottom-hole area geometry calculated on the basis of the obtained data at each movable shield framing there mounted is the angle of bed top passing and the setting of shearer cut height with drum executive mechanism is sent to the corresponding angle of bed top passing for obtaining the specified bottom-hole region.

EFFECT: automation of mining and fixing works in relation to the specified bottom-hole region.

20 cl, 10 dwg

FIELD: mining.

SUBSTANCE: method for automatic production of specified width of bottomhole space consists in determination of a distance between the upper edge of the drum base and the lower side during mining, accordingly, bringing the rest of the shield support bed top cover. At the same time the specified distance is measured by means of at least one radiolocating sensor fixed on the base of the shearer-loader drums. The actual value for tunnelling height of the shearer-loader with a drum actuator under the shield support is introduced into a unit of a computing machine and compared with the specified value stored in it. At the same time, if a deviation is established, control commands are generated for adaptation of cut height of at least one of two cutting drums of the shearer-loader. Also a device is disclosed for realisation of the proposed method, where radiolocating sensors are arranged at the side of the drum base manhole and may be installed aflush into the surface of the drum base.

EFFECT: exclusion of collision of a shearer-loader working element drum and frame of a shield mechanised support.

21 cl, 5 dwg

Tunnelling combine // 2494253

FIELD: mining.

SUBSTANCE: tunnelling combine is proposed, comprising a cutting element, hydromotors of a movement mechanism, controlled by a hydraulic distributor, and outriggers kinematically connected to hydraulic cylinders equipped with hydraulic locks and controlled by a separate hydraulic distributor. Besides, the tunnelling combine additionally comprises an "or" valve, one inlet of which is connected to one of manifolds of hydromotors of the movement mechanism, and the other one is connected with their second manifold, and a check valve, the under-valve cavity of which is connected to the outlet of the "or" valve, and the above-valve cavity is connected via the hydraulic locks of hydraulic cylinders with their stem cavities. Besides, in the neutral position of the separate hydraulic distributor of hydraulic cylinders control, their piston cavities are connected with a drain manifold via hydraulic locks.

EFFECT: expansion of capabilities of tunnelling combine control and higher safety.

2 dwg

FIELD: mining.

SUBSTANCE: method is proposed to control cutting height of stripping combine drums, in which they register parameters of drums cutting-in into a side rock, and drum cutting height is set with control signals produced from the measured values. At the same time in process of mining works the measured values, which are registered, include consumption (ISM) of current by cutting motors that drive the drums, and also speed (VM) of stripping combine motion with the drum actuator. From these measured values in a computer they determine the appropriate specific energy (ESP) of cutting as the ratio of current consumption (ISM) to motion speed (VM). Besides, for various conditions of extraction, depending on hardness of coal to be produced and side rock deposited nearby, they set a characteristic value for specific energy (ESP) of cutting, which, when exceeded, results in cutting-in of drums into the side rock, and appropriate control signals are formed for correction of drum cutting height.

EFFECT: higher accuracy of combine drum cutting height adjustment.

3 cl

FIELD: machine building.

SUBSTANCE: present description relates to the cutter head for mining machine, and in particular to gear of the force transition to the cutter head of the mining machine, such as continuous miner. The machine for the ore bed development includes: motor with shaft, cutting drum with specified motor and connected to ring tooth-wheels. The primary planetary gear connecting the motor and cutting drum and containing sun gear connected with shaft for force transition to the planetary pinions entering in the engagement with the internal ring tooth-wheel. Secondary planetary gear comprising sun gear receiving force from the ring tooth-wheel and transmitting the rotation force by the non-orbital planetary pinion. Spur gear secured to each side of the non-orbital planetary pinion, at that each spur gear engages with the ring tooth-wheel secured to the cutting drum.

EFFECT: possibility of use of same motor to drive various parts of the cutting drum, as spur gears can engage with various parts of the drum.

10 cl, 6 dwg

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