Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels (E21F)

E   Fixed constructions(158735)
E21F              Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels(9140)

ethod of creating water-resistant filling mass // 2642750
FIELD: mining.SUBSTANCE: method includes production of filling mixture by mill technology based on clinker and zeolite as binding agent, feeding it by gravity through a pipeline system and placing in mined-out space with its preliminary partial reinforcement. At that, successive supply and placement of two solutions is performed in mined-out space on level of an excavation located below pressure water-bearing horizon: first the solutions with water-resistant properties for height of not less than 1.5 m with embedding into the host rocks, and from the top of the base layer is the low-clinker under the roof of the excavation, then a drainage drift (DD) is developed in the filling mass on the contact with the host rocks along the contour of the water-resistant layer in its lower part and drainage holes (DH) are drilled out from the drainage drift into the filling mass above the water-resistant layer for complete interception and diversion of brines.EFFECT: provision of safe conditions for development of underlying mineral reserves due to complete interception and diversion of filtered brines.18 cl, 4 tbl, 3 dwg

High-accuracy method with use of double label for moving targets position fixing in mine // 2642522
FIELD: measuring equipment.SUBSTANCE: high-accuracy position fixing method with the use of double label includes a method for locating a position fixing of an object of the first type in a mine and a method for position fixing of a moving object of the second type in a mine; the method includes the steps of: setting two position labels horizontally or vertically on a moving object and performing them to communicate with two base positioning stations installed along the roof timber and obtaining the location of the moving object in real time by constructing an optimisation function between the distance determined according to the received signal strength indicator and the estimated distance between the label and the base station of position fixing and searching for the minimum value; solving the optimisation function by an iterative process, including the step of determining the initial iteration value and the iteration step in the left/right direction. The method is applicable for determining the location of objects with a strip profile parallel to the digging face (for example, a mine trolley or a cutter) or objects with a strip profile perpendicular to the digging face (for example, a working).EFFECT: improved accuracy of position fixing of a moving object in the mine.2 cl, 2 dwg

Bottom-hole insert injector device // 2642192
FIELD: oil and gas industry.SUBSTANCE: insert injector device includes a body that has an inner oil channel configured to provide a through passage of oil. The body further has an annular chamber formed around the inner oil channel. The annular chamber has a chamber opening configured to be connected to receive a flow of a gaseous heat transfer medium. The body also has at least one injector opening providing a passageway between the annular chamber and the inner oil channel. At least one injector port is configured to inject a gaseous heat carrier into the oil passed through the inner oil channel.EFFECT: increased efficiency of the bottom-hole insert injector device.15 cl, 5 dwg

ethod for sealing degassing wells // 2641555
FIELD: mining.SUBSTANCE: method for sealing degassing wells comprises performing oriented hydraulic fracturing of rocks, creating air-impermeable screens in surrounding array, creating rock layer preventing air filtration into the working part of the degassing well. The rock layer preventing air filtration into the working part of the degassing well is formed between two parallel air-impermeable screens due to impregnation of rocks with liquid with formation pressure higher than air pressure in the mine working.EFFECT: reduced air inflow from the mine working into the working part of degassing well through coal-rock mass.10 cl, 1 dwg

Ventilation valve of underground working // 2641347
FIELD: ventilation.SUBSTANCE: valve contains a support frame (framing) mounted in the walls of tunnel, a leaf (web) hingedly fixed to the frame, closing-opening mechanism of the web mechanically connected to the web and framing and gap sealing unit between the web and the frame with a closed web, made of the elastic material placed between the approaching surfaces of the web and the frame when the valve is closed. In this case, the gap sealing unit is made in the form of a rigid collar placed along the perimeter of frame in the zone of abutment to the border of web, while on both sides of collar a flameproof elastic sealing profile made of material that increases considerably in the volume with heating is fixed, and collar height is smaller than the height of elastic sealing profile. The collar serves as a stopper for the initial deformation of elastic sealant when the web is closed and serves as a reinforcing element with an increase in the volume of sealant when it is heated.EFFECT: ensuring reliable operation of vent valve.3 dwg

Heat exchange module and method of its assembly // 2640856
FIELD: heating system.SUBSTANCE: heat exchange module characterized in that it comprises elements forming a heating surface and a heating element having contact with the elements forming the heating surface. Elements that make up the heating surface are made in the form of extruded metal panels that have converted to opposite sides external and internal surfaces and side edges, made from one side in the form of a projection, and from the other side in the form of groove that when docking form a lock for connection of extruded metal panels and formation of heat exchange module. Wherein, at least one edge of the heat exchanger module perpendicular to compounds of extruded metal panels, is incurved, and heating element is laid in respective channels or anchorages, performed on the internal surface of the extruded metal panels forming a heating surface.EFFECT: increasing the efficiency of heat exchange and simplifying the process of assembling the heat exchange module.9 cl, 3 dwg

ethod for ventilation of underground mine workings // 2638990
FIELD: mining engineering.SUBSTANCE: method includes supply of external atmospheric air into a shaft well by a fan. Fresh air is supplied from day surface via heat-insulated vertical or inclined air duct, and outgoing air heated in underground mine workings is removed from the shaft along an annular channel formed between the well walls and the air duct. The well is developed so that the intersection of the well with the underground mine workings is in the fresh air stream direction to the area of operations ventilated by means of a partial section scheme or other working zone. The fresh air stream entering through the well air duct is mixed with air which is supplied from the mine ventilation system by depressing the fan of the main mine ventilation unit. A chamber with adjustable air gates is installed on the heat-insulated air duct at the intersection of the well with underground mine workings. The chamber directs the flow of air via the air supply line of untreated air to the area of operations or to the working zone or without additional heating, or via an air duct supplying air for further heating and a ventilation working with outgoing stream available at the exit from the area or working zone. The air directed for heating through the air duct and via the insulating bulkhead is sent through the air duct passing through the ventilation working, and distributed by a collector through a tube bank, in which the heated outgoing air is heated up to + 30…50°C, then the heated air is returned via the air duct to the insulating bulkhead, get accumulated in the collector, and sent via the air duct with adjustable air gate to the air duct for supplying the untreated air. A louver-type air controller with pedestrian passage installed at air outlet from an area of sectional ventilation in the ventilation working with outgoing stream passes a part of air further into the ventilation working, and the rest air portion enters through the air duct to the intersection of the well and the workings and escapes to the day surface through the annular channel, after that it is sent to the heating system of the fan inlet channel and after its passage, it is released into the atmosphere or directed for further disposal, for example, in a boiler house.EFFECT: improvement of the method.2 cl, 1 dwg, 1 ex

ethod of creation and operation of operational underground storage of natural gas enriched by helium // 2638053
FIELD: oil and gas industry.SUBSTANCE: invention is intended for the creation and operation of underground storage facilities for natural gas enriched with helium (USNGEH). In USNGEH, on which production wells are built in the dome part of the reservoir, injection wells at a predetermined distance from the impact of production wells and control wells, cyclic injection of natural gas enriched with helium (NGEH), to the storage facility with the creation of its active volume and preservation of the buffer volume of a hydrocarbon or non-hydrocarbon gas and selection of an active volume of NGEH.EFFECT: improving the quality of stored natural gas by reducing the risk of formation of large mixing zones, the efficiency of use due to the possibility of regulating the composition at wellheads by means of area regulation of injection and selection.12 dwg
Anti-pyrohenogenic reagent for preventing coal self-ignition in storage and transportation // 2637221
FIELD: chemistry.SUBSTANCE: antipyrogenic reagent comprises a mixture of trichloroethyl phosphate 20.0-30.0 wt % and the rest to 100 wt % of the dust suppressor of potassium salts in the form of a mixture of monoglycolic not more than 5.0%, diglycol 20%, triglycol 20%, tetraglycol 10%, pentaglycol 10% with monoethyl ethers of tri- and tetraethylene glycols of not more than 30.0% in water of not more than 5.0%.EFFECT: lower fire risk, increasing the frequency of use, the possibility of using the composition in the winter due to the low freezing point.1 tbl, 3 ex

achine for extraction of material from mine car, implemented on basis of the lifting mechanism with steel rope // 2637062
FIELD: machine engineering.SUBSTANCE: machine is made on the basis of a lifting mechanism with a steel rope, and contains a material grasping mechanism (1) for grasping the material to grasp the material in mine car (6), a lifting mechanism (2) connected to the material grasping mechanism (1) and controlling the lifting mechanism (1), a rotary support mechanism (3) connected to the lifting mechanism (2) and used to control the rotation of material grasping mechanism (1) in a horizontal plane, and a translation mechanism (5) used to fix the rotation support mechanism and movement in vertical and horizontal directions. Hydraulic pump station (4), containing a power source, is located on the translation mechanism (5). In this machine for material extraction, the steel rope is used as an actuation element of the lifting mechanism.EFFECT: compact design, efficiency in operation.2 cl, 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

Scanning thermal control system // 2636142
FIELD: mining.SUBSTANCE: invention relates to security features during ungerdround mining operations, namely, to temperature control devices for the objects within the mines. Scanning thermal control system is proposed which comprises at least one thermal recorder, a primary data processing unit, a data transmission unit, an antenna, a communication network, a general computerized machining center. A contactless thermal recorder is used as a thermal recorder, mounted on the underground mobile vehicle so that the installation site allows it to have the desired viewing angle for monitoring specified areas. The system additionally comprises a location determination module with location of its absolute coordinate with a given accuracy. The concluding object surface heating pattern inside the mine shaft is formed in the data processing node based on the joint analysis of temperature and coordinate data received from the location determination module. There is a possibility of observation, statistical data collection and analysis of changes in this pattern over time, as well as automatic signal generation that the value of these changes corresponds to the predetermined threshold level for specific areas / objects in the mine.EFFECT: invention provides the improvement in manufacturability and reliability of underground heating pattern determination with reference to specific coordinates, manufacturability of system implementation.9 cl, 2 dwg

ethod for hydraulic backfilling of chambers // 2636070
FIELD: mining engineering.SUBSTANCE: method includes drilling of wells in inter-chamber pillars, laying of bottom-hole pulp line, supply of pulp to deposited chamber through wells. In this case, the pulp line is laid in perpendicular to bottomhole pulp line through the wells for the whole length of chamber block, the holes are made in it above each chamber for feeding pulp and successive backfilling of block chambers is carried out.EFFECT: reduced duration of backfilling operations and reduction of labour input due to laying of one bottom-hole pulp line into the block of chambers.4 cl, 4 dwg
ethod of laying open face with eolian sand in shallow coal seam in western desert mining areas // 2635927
FIELD: mining.SUBSTANCE: method is proposed for laying an open face with eolian sand in a shallow coal seam in western desert mining areas that is suitable for a coal-mining face that has improved self-stabilization of the roof and has the ability to form an open face of a certain size in the back. With a small amount of work, including drilling from the earth surface into a shallow-lying coal seam and good flow rates of aeolian sand, drilling is performed on an open face formed after extraction of the working face, and the open slope is directly laid with eolian sand step by step before underground periodic loading so that the laying of the open face with eolian sand is provided. Since the occurrence of the coal seam in the west is shallow and there is a thick overlapping loose layer, as well as a thin rock foundation, the amount of work required for drilling is small, the costs are low and the construction cycle is short. In addition, the problems of destruction of the overlapping rock and sedimentation of the earth surface can be effectively solved, while eliminating the danger of breakthrough of water and quicksand, which reduces the impact on the environment of the western mining areas.EFFECT: new technical approach is designed for the initial development phase in the western desert areas of China's mining works, and has a high economic efficiency of production, provides a reduction in investments in equipment and low cost of laying.6 cl, 3 dwg

Device for mechanised rock development // 2635798
FIELD: mining engineering.SUBSTANCE: device for mechanised rock development has an inclined scraper conveyor 1 with at least one sieving element 3, and a second inclined scraper conveyor 2 with at least one sieving element 4. The upper end of the first conveyor 1 is above the lower end of the second conveyor 2. Wherein, at least the first conveyor is configured to adjust the height of its upper end.EFFECT: simplification of the design and simultaneous adjustment of crushing capacity by changing the impact force, reduction of ash content.2 cl, 1 dwg

Controlled lighting of area in mining environment // 2634874
FIELD: lighting.SUBSTANCE: system comprises of at least one LED, located on the lower side of the roof support, and a controller, configured to receive status information for mining equipment, operating in the mining environment, and to transmit information to at least one LED and switch at least one first operating mode of the LED to the second operating mode, based on the received status information. Therein, in the first operating mode at least one LED provides the area illumination, and in the second operating mode at least one LED transmits information to personnel, located in the mining environment, wherein in the second operating mode, the controller controls the flashing of at least one LED to indicate the direction from the location with the detected condition.EFFECT: control properties of light sources, such as colour, brightness, status, structure, position, for transmitting different messages or information to personnel.21 cl, 4 dwg

ethod for waterproofing of mine workings of potassium mines // 2634760
FIELD: mining engineering.SUBSTANCE: method involving entry development, erection of concrete body bulkhead, which walls are in contact with host rocks. The hydraulic isolation of mine working is carried out by grouting hosting water-soluble salt rocks and the bulkhead concrete body through rows of well fans which are drilled from a specially developed working.EFFECT: improved waterproofing of mine workings.7 cl, 4 dwg

Dust suppression method // 2634146
FIELD: mining engineering.SUBSTANCE: invention relates to dust suppression at negative and moderately positive temperatures of air and rock in mine workings and quarries directly at the dust source. The proposed dust suppression method includes supply of compressed air to a nozzle of a snow generator with following direction of snow flame into a dust cloud. In this case, compressed air is preliminarily divided into wet hot and dry cold portions. Wherein, the cold portion is supplied to the nozzle of the snow generator, the generated snow is directed to the upper portion of the dust cloud, and hot portion of compressed air is directed to the lower portion of the dust cloud directly to the dust formation source. At that the flames of the hot air flow opening and the cold snow flow do not intersect.EFFECT: increased suppression reliability of strong dust formation sources.1 dwg

ultifunctional belt conveyor // 2633835
FIELD: transportation.SUBSTANCE: multifunctional belt conveyor for transporting rock mass along horizontal and inclined workings and inclined bores of mines and quarries, comprising unified complete groups of a remote head, a drive station, a middle flight part, a belt, a loading device, a tension head, and electrical equipment. Moreover, unified complete groups of the same name of a remote head with a middle flight part and a loading device are additionally introduced therein along its axis, at the same belt with only four branches: two freight ones - for coal and rock, and two idle ones and with a built-in bypass drum and built-in deflecting drums in the conveyor tail.EFFECT: ensuring the vehicle universality while developing a mine field, due to combining vehicles for the rock mass delivery and for the rock delivery with the simultaneous delivery of people to and from work.6 cl, 4 dwg

ethod of direct air heating for mine ventilation // 2633334
FIELD: ventilation.SUBSTANCE: method comprises heating the air by delivery circuit with combustion products generated by burning the gas-air mixture in the burner units of the mixing air heater with jet-vortex combustion stabilization at a constant gas-combustion ratio of 1:16-1:15. The combustion products in the air heater are heated from 25 to 60% of the volume of inlet air necessary for the mine ventilation, the air is heated to a temperature of +(20-60)°C, the heated air is supplied to the mixing chamber connected to the air heater, and as the rest of the inlet air volume necessary for the mine ventilation, cold atmospheric air is supplied to the mixing chamber simultaneously with the heated air and mixed with the heated air until the inlet air temperature is at least +2°C, which is maintained by controlling the flow rate of the mixture of gas and combustion air, and in order to stabilise the hydraulic operation mode of the air heaters and the volume of the inlet air necessary for the mine ventilating, a vacuum in the range of 100-500 Pa is maintained in the mixing chamber.EFFECT: increased reliability of the mine ventilation system and energy saving.1 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
ethane in coal bed mass transfer parameters determination method // 2632591
FIELD: measuring equipment.SUBSTANCE: methane in coal bed mass transfer parameters determination method is offered. In accordance with this method, one takes the coal sample in the shape of the coal culm out of the coal bed and its temperature measuring, the samples preparation by dint of the coal culm selection in the form of the coal grains grain, the samples placement in the measurement chamber, the chamber hermetic encapsulation and the desorbing into the measurement chamber methane pressure measurement. One defines the maximum permissible gas-bearing capacity of the coal bed as the proportion of the product of the methane pressurization in the measurement chamber and its volume to the coal density, the atmosphere pressure, the coal sample volume and the dimensionless parameter. One estimates the coal porosity in a laboratory environment. For doing this, one places the sample into the high-pressure chamber, pressurizes it, saturates the sample with methane under the pressure, which is equal to the directionless strata pressure component, and under the temperature, which is equal to the coal bed temperature, till the sorption equilibrium. One relieves the pressure up to the atmosphere one, plugs the chamber to the measuring device and rates the methane from the coal sample pressure change. One estimates the porosity as the rate of the methane pressure in the measurement chamber and the chamber's volume to the product of the pressure of the sorption equilibrium, the coal sample volume and to the dimensionless parameter. If the porosity is known, one defines the methane in the coal bed pressure as the ratio of the product of the methane pressure in the measurement chamber and the chamber's volume to the product of the coal porosity, the coal sample volume and to the dimensionless parameter. At the same time, it is assumed that the kinetics process of the gas desorption from the coal bed and from the sample are identical ones. The measurement chamber volume is selected equal to no less than 80 volumes of the coal sample.EFFECT: method allows to simplify the measurement process and to improve the obtained results accuracy.1 cl
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 of venting of blind working // 2631946
FIELD: ventilation.SUBSTANCE: method is carried out by performing a regulating device in the form of a pipeline with a fork, at the entrance of which a fan is installed. The pipeline is branched to a vent pipeline, the free end of which leads into a blind working and to the discharge pipeline located in the air-supplying drift. Using a flow sensor, the amount of air entering the vent pipeline is monitored. The volume of air supplied through the vent line to the blind working is regulated by the adjustable damper installed on the discharge line.EFFECT: efficiency of ventilation of the blind working.3 cl, 3 dwg
ethod for detecting underground fires // 2631516
FIELD: mining engineering.SUBSTANCE: invention relates to safety field and prevention of endogenous fires during underground mining of coal beds prone to spontaneous combustion. The method for detecting underground fires is proposed, which includes conducting electrical exploration with measurement of specific resistivity, the width of the beds of the geoelectrical section, and the determination of coal temperature t in the area abnormality. The method is carried out from the earth surface, and coal temperature t in the area of abnormality is determined taking into account the electrical exploration of the geoelectrical section and the properties of coal.EFFECT: increased efficiency and accuracy of underground fire sources location, reduced costs for extinguishing fires and improved safety of mining operations.1 dwg

ine calorifier installation // 2630838
FIELD: ventilation.SUBSTANCE: mine calorifier includes blowers, a number of plate elements installed in the lower part of the heater duct adjacent to the shaft of the shaft and oriented along the flow of air. When a water or chemical substance is used as a coolant on the plate elements, a heat exchange tube system is formed that forms a closed loop for the circulation of the heat transfer fluid, including control valves and control devices for supplying the coolant. The plate elements are located in the air passage channel parallel to the walls of the lower part of the heater channel with the possibility of adjusting their angle of inclination relative to each other and the lower part of the heater duct. In this case, the fans are located in the surface building and/or in the air duct to the plate elements and/or after the plate elements.EFFECT: reduction of energy costs for the operation of the plant with the use of various types of thermal energy and ensuring uniform warming of the air.4 dwg

ining method for development with backfilling and contacting back and water conservation for controlling cracks of overlapping layer and saddling of surface // 2630833
FIELD: mining engineering.SUBSTANCE: method is applicable for controlling a crack in overlapping rock and saddling of surface in the course of mine development with water conservation. The sensor is mounted at the top of mined out space for face backfilling, where extraction with water conservation is perfomed, the main backfill portion is monitored with stress indication device to determine whether the backfill contacts with the back of mined out space or they are separated. When the main backfill portion is separated from the back after contact with the back is established, the backfilling of the mined out space is filled-up to achieve complete contact with the back in order to obtain control over cracks in the overlapping rock and saddling surface and ultimately protect water resources when performing mine operations in the mine.EFFECT: simple and targeted method with reliable functionality and high efficiency.2 cl, 2 dwg

Self-propelled track reloader // 2630507
FIELD: mining engineering.SUBSTANCE: reloader includes a movement mechanism, a pan with a clearing tray, a conveyor, a drive and electrical equipment. At that, the movement mechanism is made in the form of a track, which is pivotly connected to the pan which lower surface shape is smooth. Due to the presence of pivot connection between the pan and the movement mechanism made in the form of a track, it becomes possible to maneuver while moving in the shaft. The smooth bottom surface of the pan facilitates its sliding along the excavations without bogging into the ground.EFFECT: elemination of wheeled structure simplifies operation, reduces production cost and facilitates maintenance.3 dwg

Deep pit ventilation device // 2630465
FIELD: mining engineering.SUBSTANCE: device includes an elastic exhaust pipe with toroidal stiffness chambers located along its length and filled with light inert gas, electric heating elements with supporting frame, a heat exchanger made of shielding film. The device is equipped with vertical telescopic hollow shaft located in the elastic exhaust pipe, on which a wind wheel with curvilinear cavities and an impeller is fixed. In this case, the profile of the wing impeller lower surface and the profile of the curvilinear cavity upper surface of the wind wheel form, in the joint motion, a cavity in the form of a tapering rotation cone, which axis coincides with the telescopic hollow shaft axis. Between the impeller and the wind wheel in hollow shafts there are inlet windows and outlet windows provided at the turbine level, in addition, the device is provided further with thermal generator that consists of a ring-shaped body mounted above the upper toroidal stiffness chamber with internal surface constantly blown by ventilation air and a set of differential thermocouples. At that, the lower surface of the impeller wing and the upper surface of the wind wheel are covered with nano and glass-like tantalum oxide film obtained by the ion-plasma method.EFFECT: reducing the intensity of corrosion destruction wing surfaces of the impeller and wind wheel.5 dwg
ethod for determining methane bed pressure and sorption parameters of coal bed // 2630343
FIELD: mining engineering.SUBSTANCE: method includes drilling a bed well, sealing its collar, measuring the pressure and production rate of methane during the closure and opening stages of the well, verifying sorption parameters in the theoretical model of methane mass transfer with pressure and methane measurement data. After steady production rate of methane is reached, water is injected into the well at a pressure of 10…15 MPa, the well collar is closed during water and methane pressure stabilization period, then after the outflow of water from the well the current methane production rate is measured. The value of the steady water pressure is determined by the upper limit of the methane bed pressure, and according to the measurements of the methane production rate before and after the hydroprocessing, the sorption parameters of the coal bed in initial and wet conditions are verified.EFFECT: increased reliability and efficiency when determining methane bed pressure and sorption parameters of coal bed in initial and wet conditions.2 cl, 3 dwg, 4 tbl
System of dynamic controlling roof-based separation based on fiber grating and method of preliminary alert // 2630334
FIELD: radio engineering, communication.SUBSTANCE: structure includes three parts: a ground-based subsystem of data processing and controlling, an underground subsystem of data transmitting and communicating, and an underground sensor subsystem for data collecting. The ground-based subsystem of data processing and controlling is located in the ground control room and contains a ground-based main controlling computer, a fiber demodulator from the fiber grating and a power supply unit; the subsystem of data transmitting and communicating comprises a transmitting optical fiber for the mines and an optical fiber junction box and an underground sensor data acquisition subsystem comprising, at least, one roof-based separation controlling device based on the fiber grids. Continuous dynamic measurement of the roof section on the network in real time mode is obtained, the condition of changing the rock surrounding the production is obtained, and the acceptability of the anchor support parameters is checked. If the pre-alert threshold is exceeded, a pre-alert signal can be sent accordingly.EFFECT: possibility of taking timely measures and preventing the collapse of the roof, which is very important for the size of the outer roof section and the stability of the development in the anchoring zone.3 cl, 3 dwg

Belt haulage // 2627918
FIELD: transportation.SUBSTANCE: process of belt haulage of loose and concentrated ladlings is carried out using a conveyor having linear and transitional guides, end and intermediate drums, electric drives, chains. Transportation of ladlings is carried out by carriages moving on wheels along a rail track located on both sides of the conveyor above the level of its driving heads, and the carriages acquire the movement by engaging their elements with the buffer pushers of the conveyor.EFFECT: method allows to take advantages of a rail transportation with a track gauge width 1520 mm and moving along it freight carriage of high capacity and lifting power in mines, diggings, sections and quarries.6 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
Device and method for water drainage of fractured bedrock layers // 2627054
FIELD: mining.SUBSTANCE: device water drainage of the fractured underlying layers contains a drainage pipe made of seamless stainless steel pipes that passes through a well drilled in the underlying layers. The outer end of the drainage pipe is connected to the ring drainage siphon and valve by means of a connecting device. A lot of water drainage holes are located in the drainage pipe at a distance. A single-acting throttle water damper is installed inside the drainage pipe. Rubber water blocking rings, containing an expanding agent, are installed by means of couplings on the outer wall of the drainage pipe at a distance. The seal is installed between the outer wall of the upper end of the bilge pipe internal wall and drilled wells. The ring drainage siphon, connected to the drainage pipe, is connected externally to the actuator pump and water tank. The device for pouring out of the fractured underlying layers, pump the water from the cracks in the underlying layer in accordance with the principle of a hermetically sealed fluid siphon, so that the softening of the sole of the production of water from the underlying layer is prevented, thus improving the stability of the surrounding rock; in addition, the volume of water removed from the underlying layer is effectively regulated by the installed valve, thus ensuring a constant filling of the siphon with water and preventing entry of air into drilled wells and erosion of the rock layers.EFFECT: simplification of design and application.5 cl, 1 dwg

Device and method for monitoring roof separation layer on basis of fiber grid in mining // 2627051
FIELD: mining engineering.SUBSTANCE: device for monitoring roof separation layer on the basis of fiber grid consists of a perpendicular measuring barrel (1) installed in hole drilled in the roof, and an layout case of equipment layout (19) connected from below to the perpendicular measuring barrel (1). Mounting brackets (6) of guide roller and mounting brackets (7) of roller with steel tape are symmetrically mounted on the upper part of layout case (19), and socle beams (15) of constant strength are symmetrically mounted on the lower part. Tension springs (16) are installed on opposite ends of socle beams (15) of constant strength. The other ends of two tension springs (16) are connected to steel wire rope (3). Steel wire rope (3) passes through rollers (17) with steel tape and guide rollers (18), and extends outward from fair-lead (2) of steel wire rope at the top of perpendicular measuring barrel (1). End head of steel wire rope (3) is connected to anchor head (5). Fiber grids A (8) and fiber grid B (9) are symmetrically mounted on the left sides and right sides of the socle beams (15) of constant strength. Fiber grids A (8) and fiber grids B (9) exit outwardly from fiber fair-lead (10) through the same fiber (12) and are connected to the fiber connector (14). Also, method for monitoring roof separation layer on basis of fiber grid in mining operations using a device for monitoring roofing separation layer on basis of fiber grid in mining operations.EFFECT: increasing safety due to higher monitoring efficiency and measurement accuracy.7 cl, 7 dwg
ethod for prliminary degassing of coal beds // 2626104
FIELD: mining.SUBSTANCE: preliminary degassing method of undeveloped and developed coal beds through holes drilled in rock failure cavities includes hole drilling in scheduled rock failure cavities in mine, followed by casing with steel columns with process holes and cementing below the aquifer level; casing the holes with perforated fiberglass columns below the casing metal pipe; plasma-pulse wide-band regular impact on non-operational coal beds; plasma-pulse wide-band regular impact on gas-bearing non-operational accompanying beds; plasma-pulse wide-band regular impact on overlaying permeable explosive rocks; removal of clean methane through annular space of the hole from operational bed, accompanying bed and overlaying permeable explosive ground.EFFECT: decreased coal bed degassing time, decreased safety when degassing coal beds and increased efficiency of coal bed degassing.9 cl, 3 dwg

Pit ventilation method // 2626085
FIELD: mining engineering.SUBSTANCE: method consists in ventilation of openpit with convective heat-trasfer flows generated by a heater placed on the surface of the openpit. At the same time, convective flows are formed by a pulsed flow of heat-trasfer at a speed of 100 to 300 m/s and periodicity of 1 to 5 seconds. Convective heat-trasfer flows are formed alternately, first by means of conical nozzle of heat-trasfer, which provides the opening of convective flow by 1-2 degrees, then by means of a conical nozzle, which ensures the opening of convective flow by 3-5 degrees. Heat-trasfer in calm period is water vapour, and under atmospheric inversions is hot air.EFFECT: improving air exchange of openpit space with environment.3 cl, 2 dwg

Filtering dam // 2625132
FIELD: mining engineering.SUBSTANCE: filtering dam is proposed that includes a flexible power frame anchored in mine, a flexible filter element, also attached to the walls of mine, equipped with an elastic muffler and clamping elements. Moreover, the power frame is made of two unequal parts, connected together through a horizontal support. Wherein, each part of the frame is made of a single cable, zigzagged fixed in vertical plane to the soil and the roof of mine.EFFECT: reducing material consumption for dam power frame, improving its reliability and simplifying installation.4 cl, 5 dwg
Anti-pyrogenic reagent for storage and transportation of coal // 2625109
FIELD: mining engineering.SUBSTANCE: antipyrogenic reagent for storage and transportation of coal contains chloroparaffin "ХП-470" 20.0-30.0 wt %, dust suppressor of potassium salts as a mixture of mono-, di-, tri-, tetra-, pentaglycols and monoethyl ethers of tri- and tetraethylene glycols - the balance is up to 100%.EFFECT: reagent ensures lowering of fire hazard, increasing the frequency of use, lowering the freezing point.1 tbl, 3 ex
ethod of accommodating nuclear power plant for producing electricity in unprofitable mine to be liquidated // 2624743
FIELD: construction.SUBSTANCE: pit-bottom is separated by concrete bridges from all other workings of the mine to be liquidated to prevent the access of methane and mine waters to the pit-bottom, and as a potential sarcophagus intended for accommodating the nuclear power plant. To supply electric power to the mine surface substation, power shaft mine cables are used, and the communication channel of the potential sarcophagus with the environment is carried out through the shaft of the mine to be liquidated, made with the possibility of carrying out the operational concreting of the shaft in the event of an accident at the nuclear power plant. The coal-reception hoppers of the collar house of the mine to be liquidated are used as storage tanks for crushed stone, sand, cement and water to start the operational concreting of the mine shaft - blocking the communication channel with the environment of the nuclear power plant sarcophagus in case of an accident that threatens with the environment pollution, and the collar house of the mine to be liquidated is used as the facility for accommodating the complex for accepting crushed stone, sand, cement brought and unloaded by vehicles of the accident liquidation service, preparing concrete and dumping it into the mine shaft to complete the making of the nuclear power plant sarcophagus.EFFECT: possibility of economical and long-term liquidation of the possibility of an ecological catastrophe in the event of an accident at a nuclear power plant; the significant reduction in capital expenditures for the construction of a nuclear power plant; increasing the employment of inhabitants of a miners' settlement formed near the liquidated settlement-forming mine.1 cl
Composition for prevention of coal combustion in storage and transportation // 2623755
FIELD: mining.SUBSTANCE: composition for prevention of coal combustion in storage and transportation contains 5% orthophosphoric acid, alkyltrimethylammonium chloride cationic surfactant, potassium salts dust suppressor as a mixture of mono-, di-, tri-, tetra-, pentaglycols and monoethyl ethers tri - and tetraethylene glycols, with the following proportions of components, wt %: 5% orthophosphoric acid - 76.0-88.0%; alkyltrimethylammonium chloride cationic surfactant - 2.0-4.0%; potassium salts dust suppressor in the form of a mixture of di-, tri-, tetra-, pentaglycols and monoethyl ethers of tri- and tetraethylene glycols - the rest up to 100%.EFFECT: lowering the fire hazard, increasing the frequency of use.1 tbl

Ongoing monitoring comprehensive system for safety in underground coal mines with the use of fiber-optical sensors made on the basis of the lattice // 2623392
FIELD: mining.SUBSTANCE: ongoing monitoring comprehensive system for safety in underground coal mines with the use of fiber-optical sensors made on the basis of the lattice, containing an aboveground part and an underground part. The aboveground part contains a fiber-optic static demodulator based on a grid, a computer data processing system, a printer, a server and a client. The underground part contains a block of optical switches, a subsystem for current security monitoring of the forefield and a subsystem for monitoring the safety of the tunnel. Both of the ongoing monitoring subsystems contain at least one base station of the ongoing monitoring. Each base station of the ongoing monitoring contains at least one ongoing monitoring station. Each ongoing monitoring station corresponds to a set of fiber-optic sensors based on the lattice. The ongoing monitoring system uses a number of monitoring stations, performs ongoing monitoring of many parameters under the ground, is combined with lattice-based fiber optic sensors, uses a fully fiber-optic measurement and fiber optic cable for signal transmission.EFFECT: system is safe in nature, has high resistance to electromagnetic interference, allows to achieve good results of current monitoring and implements data sharing with continuous operational long-term monitoring in real time and production over large areas, thereby improving the management of safe coal mining, it is possible to effectively reduce the occurrence of accidents in a coal mine and the possibility of safe and highly effective coal production.2 cl, 5 dwg

ine drainage during development of synclinal coal deposits by combined method // 2622972
FIELD: mining.SUBSTANCE: mine drainage during development of synclinal coal deposits by combined method, including sewage and drainage ditches of mine workings, drain sumps, pumping installations on the lower horizons of mines and sections, pumping stations with or without drain sumps on the upper mine horizons stories, disinfection of mine waters on the surface, connected into a single complex by a network of pipelines with stop valves. At the same time, inflows of underground mine waters enter the underground drain sump located on the lower horizon of the last tried out formation in the syncline deposit mould, from the drainage ditches of the underground mine workings through a pre-treatment complex that serves to separate large and suspended particles up to 0.15 mm in size, immiscible liquids and floating objects with a density below water by mechanical means. Shaft inflows from the upper horizons are passed through a well drilled in the syncline deposit mould and then pumped by two streams to the drain sumps located on the lower horizons of the trenches opening the seam outcrops for capping material on the opposite sides of the deposit where they are mixed with the mine inflows of open mine workings and pumping units located on the sides of split trenches or floating pontoons, run out into complexes of deep water purification on the surface from which after cleaning and disinfecting using mechanical, physical and chemical methods flow into surface drain sumps, and after the sludge are discharged on the terrain or external reservoirs.EFFECT: elimination of multistage, reducing of energy intensity and increasing of mine water degree of purification.2 dwg

ine drainage during development of anticlinal coal deposits by combined method // 2622971
FIELD: mining.SUBSTANCE: mine drainage during development of anticlinal coal deposits by combined method, including sewage and drainage ditches of mine workings, drain sumps, pumping installations on the lower horizons of mines and sections, pumping stations with or without drain sumps on the upper mine horizons stories, disinfection of mine waters on the surface, connected into a single complex by a network of pipelines with stop valves. At the same time, inflows of underground mine waters enter the underground drain sumps of both wings of the coal anticlinal deposit located on the lower horizon of the last tried out formation in the syncline deposit mould, from the drainage ditches of the underground mine workings through a pre-treatment complex that serves to separate large and suspended particles up to 0.15 mm in size, immiscible liquids and floating objects with a density below water by mechanical means, and then pumped out to a sump located on the lower horizon section, where they are mixed with the mine inflow of open mine workings and pumping installations located on the sides of the ditch or floating pontoon, run out into a complex of deep water purification on the surface, from which, after purification and disinfection using mechanical, physical and chemical methods, flows into the surface drain sump and after sludge is discharged to the terrain or external reservoirs.EFFECT: elimination of multistage, reducing of energy intensity and increasing of mine water degree of purification.2 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

Preventive means for the protection of erosionally hazardous dust surfaces in the conditions of low temperatures // 2621333
FIELD: chemistry.SUBSTANCE: preventive tool includes gas oil fractions of thermal degradation processes of petroleum hydrocarbon feedstock processing as a solvent and a heavy oil residue as a thickening additive. The solvent is a mixture of gas oil fractions of catalytic cracking with a boiling range of 200-340°C and 340-470°C in a ratio of 1:1 in an amount of 80-90 wt %. The thickening additive is the cracking residue of the visbreaking process in an amount of 10-20 wt %, preheated to a temperature of 50-70°C.EFFECT: invention makes it possible to improve low-temperature properties, reduce the cost of preventive measures, and expand the raw material base.2 ex

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

Carried out on the basis of lattice fiber-optic system of monitoring and temperature measurement and corresponding way for developed action slaughtering space in coal mining // 2620324
FIELD: measurement equipment.SUBSTANCE: proposed, made on the basis of the lattice, fiber optic monitoring system and temperature measurement for the current face gob in coal mining in the coal mine. In goaf (12) disposed between 3 to 5 station (10) of the current control. Each station (10) comprises a control current of 10 to 12 performed on a grating fiber optic (11) temperature sensor. In each station (10) of the current control performed based on optical fiber grating sensor (11) temperature sequentially interconnected by segments (100) type fiber "pigtail". Outlet end segments (100) type fiber "pigtail" to grating formed on the optical fiber sensors (11) connected to the temperature optical fibers (80 and 81) provide communication. Optical fibers (80 and 81) provide communication connected with fiber optic cable (6) used for transmission in the manufacture of mining works by connecting box (7) for the optical fibers. Fiber-optic cable (6) to be used for transmissions in the production of mining operations, coupled with the opening end of a grating fiber optic static demodulator (1). A lead provided on the end of the fiber-grating optical static demodulator (1) is connected to the monitoring computer (2). Also, the method for monitoring and measuring the temperature is disclosed on the basis of gratings and optical fibers for gob existing slaughter in coal mining in the coal mine.EFFECT: provision of high-precision temperature measurement, increase the efficiency of monitoring the temperature in the goaf the current slaughter in coal mining.2 cl, 1 dwg

Protective-hermetic rotary shutter for span underground tunnel // 2619620
FIELD: construction.SUBSTANCE: shutter includes a protective blade fixed by means of swivel hinges and a supporting hinge, a mechanism for rotating the blade, a sealing mechanism for the blade, a rail-sealing mechanism. The rail-sealing mechanism is provided with a support beam made in the form of a welded metal structure installed in the lower part of the protective shutter blade and fixed thereto by means of cylindrical supports which are rigidly fixed by one end to the protective blade. The drive of the rail-sealing mechanism is represented by a conical gear motor with an output shaft, two cantilever ends of which are made with threads of the opposite direction of cutting with the placement of hollow pushers thereon. The lever system of the rail-sealing mechanism consists of the pair of rods, the pair of the upper levers and the pair of the lower ones connected to each other, to the supporting beam and to the drive, each pair of rods being pivotally connected by one end to one of the hollow pushers, and by the second end in the common junction assembly is pivotally connected to one end of the upper lever and to one end of the lower lever; the second end of each upper lever is pivotally connected to the support rigidly fixed to the protective shutter blade. The second end of each of the lower levers is connected by means of a ball support to the metal structure of the support beam, wherein in the metal structure body of the support beam vertical slots are made, inside which the side surfaces of the support washers mounted on the free ends of the cylindrical supports of the support beam are arranged. In the lower part of the metal structure of the supporting beam, a seal is fixed throughout its length.EFFECT: simplifying the design of the rail-sealing mechanism.9 dwg
Personnel collective rescue station // 2619577
FIELD: rescue work.SUBSTANCE: personnel collective rescue station consists of an air lock, a air lock chamber, a rescue chamber with explosion-proof sealed doors and overpressure valves protected by anti-explosion sections, of a ventilation system and stand-alone power supply. The feature is that the rescue station is installed in mines which are secured with reinforced supports of non-combustible materials and the explosion-proof sealed doors are installed in reinforced coal-cutting explosion-proof stoppings. The air flow is blown by a fan into the rescue chamber through a well drilled down from the surface. The rescue chamber is equipped with fixed drinking water tanks, sanitary facilities and automatic control equipment for air and gas protection. The rescue chamber has everything, which is necessary to maintain the personnel life, fire fighting equipment, a required storage of self-rescuers and respirators.EFFECT: creation of a personnel collective rescue station, ensuring the people's safety during the period of rescue operations by replenishing the lack of oxygen in the air, ensuring fire and explosion safety.3 dwg
 
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