Method of preparing rock material for recess using laser exposure and automated system for its implementation
SUBSTANCE: method is performed using the automated system which comprises a laser device with the possibility of longitudinal displacement and is provided with a damper platform placed on the surface miner frame and pivotally connected to the frame of the laser device. The laser device is placed on the frame guides with the ability to move longitudinally along the guides on the rolling bearings using the drive connected with the automatic control unit, and is made in the form of a cassette with fibre-optic emitters placed along the moving direction of the surface miner.
EFFECT: improved technological efficiency due to forming in the surface layer of the processed areas of zones with overlapping of laser slots, providing high concentration of stresses, alternating loads and deformation during laser processing of significant surface; performance improvement of process of destruction, disintegration and decrease in the volume of fraction requiring additional subsequent crushing due to combining the process of cutting slits and layers-strip cutting of rock materials by surface miners, and providing environmental safety.
2 cl, 5 dwg
The invention relates to the mining industry and can be used for the preparation of rocks with medium strength to nonexplosive a loss of strength for the subsequent layer-by-layer band-pass milling and extraction career harvesters.
Known methods of preparing rocks for extraction by pre-detonation of the array, including the way with cyclical-and-continuous testing of rock materials, including drilling on drilling unit vertical or inclined wells, recharge wells and blasting them under the shelter on the preparation unit to rock excavation, the subsequent seizure blasted rock and loading it on the AFC through the mobile crushing unit excavation unit [1, 2].
These methods require significant organizational and preparatory work according to common safety regulations for blasting, not exclude the influence of seismic waves, hitting the pieces of the shattered rock mass elements excavation equipment, vehicles and staff, as well as cause significant harm to the environment.
Known methods of preparation of the array to the notch at the expense of weakening its under the action of surface-active substances (surfactants). Method  provides for the loss of strength of a rock mass with the use of surfactant solution, poured into wells formed in a mountain array. Well do different depths and placed in a checkerboard pattern, and the surfactant solution is poured into the volume and concentration according to the given formulas. Method of mining ledges of rocks  provides performance grid blastholes with increased distance between them and the cementing of wells. Filling the wells are filled with solutions of surfactants and after curing of the newly topped up with solutions or water. Then produce a blasting explosive charge, excavation and loading and transport.
Methods using surfactants considerable amount of work and environmental pollution.
Known methods using laser energy for drilling in loose rocks or creation of punching holes in the casing, the cement stone and rock [5, 6]. The method of drilling wells using laser energy and device for its implementation  includes thermal softening and melting of the rock mass with the subsequent formation and strengthening of the walls of the wells when the axial flow of the drilling Assembly. Thermal softening of the breed and the melting of rock mass in the walls of the borehole is carried out by exposure to high temperature penetrator, warmed by the rays of the laser focus on the inner wall and the end face of the penetrator, to a temperature exceeding the temperature of the tour melting rocks at 200-250°. The device includes a thermal energy source, winch, load-carrying cable, high temperature penetrator, a mold-formulating, the centralizer. As a source of thermal energy used in the laser, which is connected through a current collector, the centralizer and weighting via fiber optic cable to the laser head, is placed in the cavity of the tube. The upper end portion of the body temperature of the penetrator are rigidly connected to the pipe through the mold-shaper with extender wells, freely mounted on the outer surface of the mold-shaper, and the outer surface of the penetrator is formed by rotating a catenary around the vertical axis. Provides simultaneous and high-quality fastening and forming the well walls in loose and slabosvyazannykh rocks .
In this invention a laser is used as a source of thermal energy for high-temperature heating of the penetrator, the impact on the rock is mediated. There are losses of energy, reducing the efficiency of thermodynamic effects of laser radiation on the breed.
The closest in technical essence is the laser perforator of the hydraulic slit, designed to create a perforation slits in the casing colon is Oh, cement stone and rock. The perforator includes a laser device with the possibility of longitudinal movement along the column during the implementation of the perforation, with the constant power supply, equipped with a laser Windows in the lower part, on which are located the hydro with the guide centralizers . The invention provides a drilling-sequential execution of the cutting gaps with a laser and hydrodynamic erosion of rocks.
The disadvantage of this device that provides cutting slits, is the impossibility of combining the processes of cutting gaps and immediate destruction of the breed that technologically reduces the productivity of the production process.
The technical result consists in improving manufacturing efficiency by forming in the surface layer of the processed array of zones of overlap of the laser slit, providing a high stress concentration, alternating loads and deformation in the laser processing significant surface; the productivity of the process of destruction, disintegration and reduction of the volume fraction, requiring additional subsequent crushing by combining cutting slits and layer-by-layer band-pass milling rock career combines both the biscuits environmental security.
The technical result is achieved due to the fact that in the method of preparation for rock excavation using laser exposure, including high-temperature thermodynamic slit laser effect on rock, in the surface layer of the processed array are forming the multiple zones of overlap of the laser slit, providing a high stress concentration, alternating loads and deformation in processing the large surface of the array, while the high-temperature thermodynamic slit laser effect on rock combined with layer-by-layer band-pass milling rock career harvester, which is carried out in the area, previously weakened by the high temperature thermodynamic slot laser action.
Automated complex, which includes a laser device with the possibility of longitudinal movement, provided with damping platform, placed on a frame quarry machine and pivotally connected with the frame of the laser device, while the laser is placed on the guides of the frame with the possibility of longitudinal movement along the guides on the bearings of the roller with a drive associated with the automatic control unit, and is designed as a cassette with optical emitters placed VD is l the direction of movement of the career of the harvester, and drives rotation of the frame in a vertical plane and pivoted to two sides of the damping on the platform and connected with the automatic control unit, and the control module and generating process, including the generation and supply of optical laser radiation, a compressor system for supplying compressed air for dust removal from the zone of laser processing, the cooling system and the automatic control unit all systems placed on the damping platform.
The possibility of the formation of the desired sequence of executable actions proposed tools can solve the task, determines the novelty, industrial applicability and inventive step of the development.
Automated system for implementing the method of preparation for rock excavation using laser exposure shown on the drawings.
Figure 1 - General view of the automated complex with career harvester; figure 2 is a view As in figure 1; figure 3 is a cross-section B-B in figure 2; figure 4 - section b-b In figure 2, Fig 5 is a view of G in figure 1.
Automated complex 1 contains a laser device 2 mounted with the possibility of longitudinal movement 3 on the guides 4, 5 of the frame 6 on rolling bearings 7, 8 through the drive 9. The actuator 9 is connected with the automatic control unit 10. Damping platform 1 is placed on the frame 12 career harvester 13. The frame 6 of the laser device 2 hinge 14 is connected with a damping platform 11. Drives rotation 15 of the frame 6 in a vertical plane 16 of the hinge 17 is secured at two sides of the damping on the platform 11 and are connected with the automatic control unit 10. The laser device 2 is made in the form of a cassette 18 with optical emitters 19 placed along the direction 20 career move harvester 13. The control module and generating process 21 includes a system for generation and supply of optical laser radiation 22, a compressor system 23 compressed air for dust removal from the zone of laser processing, the cooling system 24, the automatic control unit 10 all systems and posted on the damping of the platform 11. Fiber optic emitters 19 are directed perpendicular to 25 surface 26 of the processed array and carry out the formation of multilayer zones overlap 27 laser slits 28, providing a high stress concentration, alternating loads and deformation when processing large surface 26 of the array. In the 29 points of intersection of the laser slits 28 there is a high stress concentration. The operation of the laser device 2 through the loop 30 that contains hoses compressed air and coolant, fiber optic and electrical cables. Train 30 is passed through the cable is anal 31 and the string 32, stretched between the arms 33, 34 of the frame 6.
Method of preparation for the rock excavation using laser irradiation is implemented as follows.
Pre laser preparation of the rocks. Automated complex 1 with the laser device 2 mounted with the possibility of longitudinal movement 3 on the guides 4, 5 of the frame 6, a guide to the development process of the array. From the automatic control unit 10 is fed to a hinge 17 is secured at two sides of the damping on the platform 11, is associated with the frame 12, the motor drives rotation 15 of the frame 6. The frame 6 is rotated on the hinge 14 in a vertical plane 16 and is oriented relative to the surface 26 so that the beam of laser radiation was directed perpendicular to 25 surface 26 of the processed array for a more effective impact on the surface. The laser device 2 is located in one of the extreme positions on the guides 4, 5 of the frame 6. From the automatic control unit 10 of the control module and generating process 21 a signal to the actuator 9, the system of generation and supply of optical laser radiation 22, a compressor system 23 compressed air for dust removal from the zone of laser processing and the cooling system 24. The laser device 2, made in the form of cassette 18 with optical emitters 19 posted the Dole direction 20 career move harvester 13, starts with a drive 9 moving on rolling bearings 7, 8 along the guide rails 4, 5 of the frame 6. Oriented perpendicular to 25 surface 26 of the processed fiber array emitters 19 carry out thermodynamic effects on surface 26 with the formation of the slits 28. When carrying out reverse laser device 2 is the formation of multilayer zones overlap 27 laser slits 28. In the 29 points of intersection of the laser slits occurs particularly high stress concentration, alternating loads. In the lower layers of the multiple zones of overlapping slits 27 28 there are numerous deformation. High-temperature thermodynamic slit laser effect on rock combined with layer-by-layer band-pass milling rock quarry machine 13, which is carried out in the area, previously weakened by the high temperature thermodynamic slot laser action. The operation of the laser device 2 through the loop 30 that contains hoses compressed air and coolant, fiber optic and electrical cables. Train 30 is passed through a conduit 31 and the string 32 is tensioned between the arms 33, 34 of the frame 6.
Method of preparation for the rock excavation using laser irradiation through an automated complex is and increases the efficiency of the training of rocks of medium strength to nonexplosive a loss of strength for the subsequent layer-by-layer band-pass milling and extraction career harvesters and ensures environmental safety.
Sources of information
1. RF patent №2362877 from 01.02.2008. How cyclical-and-continuous mining rocks.
2. RF patent №2456538 from 25.02.2011. The way of the explosive loosening rock charges with air cushion.
3. RF patent №2009322 from 15.03.1994. Method of mining ledges of rocks.
4. RF patent №2079657 from 20.05.1997. Method of mining ledges of rocks.
5. RF patent №2449106 from 13.10.2010. The method of drilling wells using laser energy and device for its implementation.
6. RF patent №2422624 from 28.04.2010. The laser perforator of the hydraulic slit.
1. Method of preparation for the rock excavation using laser exposure, including high-temperature thermodynamic slit laser effect on rock, characterized in that the surface layer of the processed array are forming the multiple zones of overlap of the laser slit, providing a high stress concentration, alternating loads and deformation in processing the large surface of the array, while the high-temperature thermodynamic slit laser effect on rock combined with layer-by-layer band-pass milling rock career harvester, which is carried out in the area, previously weakened by the high temperature thermodynamic selev the m laser action.
2. Automated complex, which includes a laser device with a possibility of longitudinal displacement, characterized in that provided with damping platform, placed on a frame quarry machine and pivotally connected with the frame of the laser device, while the laser is placed on the guides of the frame with the possibility of longitudinal movement along the guides on the bearings of the roller with a drive associated with the automatic control unit, and is designed as a cassette with optical emitters placed along the direction of movement of the career of the harvester, and drives rotation of the frame in a vertical plane and pivoted to two sides of the damping on the platform and connected with the automatic control unit, and the control module and generation process, including the generation and supply of optical laser radiation, a compressor system for supplying compressed air for dust removal from the zone of laser processing, the cooling system and the automatic control unit all systems placed on the damping platform.
SUBSTANCE: invention relates to mining and can be used in dredging of valley and floodplain detritus. This method comprises construction of stream diversion channel, service pool for dredge and system of water treatment plants. Stream diversion channel is composed by natural bed in drag bank made at working the deposit in lengthwise direction with earth prism filling to inner slope of dredge bank. Extraction of mineral during stream diversion channel is carried out by asymmetric manoeuvring of dredge to ensure maximum cross-section area of dredge bank. Water level in service pool and water treatment plats is kept level with stream diversion channel water horizon.
EFFECT: higher environmental safety, decreased scope of works.
3 cl, 2 dwg
SUBSTANCE: proposed method comprises drilling the vertical wells, charging the latter, placing the charges, short-delay blasting of said wells and selective excavation. Blasting of blocks is performed in bulk. Note here that all three dimensions of blasted block, i.e. width, length and height, are set irrespective of the position of contacts and the number of ore bodies. After block blasting, portion of shotpile is dumped over slope roof with working of the first pass over rock on the side of ore body hanging side. Depending on attitude of ore body in blasted block, selective working of productive bench is performed in two sub-benches with mining in layers.
EFFECT: decreased losses of ore and ore dilution.
SUBSTANCE: proposed method comprises the steps that follow. Top soil layer is removed to be preserves or to be transferred to territories to be reclaimed, loosening, loading and conveying stripped rock to make the waste dumps, dislodging, loading and coal transfer to storage and reclamation of dumps. Note here that seam weathered coal approaching the day surface is extracted and stored separately. Waste dumps are levelled to apply soil and weathered coal layers thereon. Produced layer is loosened with stripped rock and rolled.
EFFECT: higher efficiency.
SUBSTANCE: proposed method comprises opening of deposit by galleries at quarry unworked edge, working of deposit in blocks with excavation of minerals by chambers, release of crushed mineral to underground openings and bringing it to grass. Note here that deposit is developed by galleries at dividing unworked edge to horizons equal to height of production bench. Charges are laid in gallery blast-holes and wells. Cut opening is produced by blasting blast-hole and well charges of the gallery central group. Rock is excavated and loaded to carries via loading funnels. Blast-hole and well charges are blasted to force the deposit of the gallery flank groups to cut opening. Conical bank of blasted rock is formed, loaded and transported. Deposits of central and two flank directions are developed to isolate prior development zones by quality of mineral stock.
EFFECT: creation of working zone in central and two flank directions at unworked edge at selective working of deposits.
SUBSTANCE: invention relates to mining particularly to openworking of rocks. Zoning is adjusted by registration of changes in thrust and lift engine performances to tie the latter via bucket spatial position in digging cycle for registration of bench bottom quality, granulometric composition and shape of cut rock bulk at transition from near well space to gotten well space. Characteristics of bench bottom working are allowed for by changes in performances of thrust engine at the level of bench bottom. Rock granulometric composition is defined by changes in performances of lift engines at filling and retention of filled bucket. Bulk compactness is defined by changes in performances of lift engine at scooping height registration at transition from gotten near well space to gotten well space.
EFFECT: higher efficiency of zoning and quality of blasting.
SUBSTANCE: access ramp for trucks in open-pit mine combined with inclined safety berm of open-pit mine includes empty and loaded branches and additional ramps to safety berms of open-pit mine located on side slopes of ramp for trucks. Herewith, empty and loaded branches of access ramp for trucks are separated and located in different half-trenches the bases of which are inclined safety berms of open-pit mine replacing sections of horizontal safety berms of open-pit mine along path of ramp for trucks and interconnected by additional ramps for auxiliary equipment located on side slopes of half-trenches, and additional ramps connecting access ramp for trucks with safety berms of open-pit mine are located at both sides of it.
EFFECT: reduction of quarring costs due to simplification of works for final pit edge formation and reducing volume of excavation removal caused by its through cut for berm of ramp for trucks.
SUBSTANCE: proposed method comprises erection of sludge pond, opening and mining of quarry field. At quarry nonworking board bench located on the side of maximum ground water mark in quarry field contour erected is buttress anti-filtration shield, under the level of ground waters beyond the boundaries the prism of possible collapse of underlying bench, over the entire length of ground water layer. Note here that buttress shield height is defined from mathematical relationship.
EFFECT: lower capital and operating costs.
SUBSTANCE: proposed method comprises excavation of working trench, mounting of transport communications, working of quarry field, excavation of minerals and access rock by benches. Note here that quarry field development is varied out from centre to its flanks while after development of quarry field for angle α between working trench and transport communications to be defined from mathematical relationship. Access rock is dumped into internal dumps located between working trench and transport communications. After complete development of quarry field working trench is elongated and transport communications are installed, cycle being reiterated several times.
EFFECT: higher efficiency, lower costs.
SUBSTANCE: proposed method comprises stockpile filling of dumping site stages. Note here that dumping site stage comprising rocks of capping and pasty tails are laid separately towards each other. Note also that pasty tails are laid on slope side Note that stockpile filling of dumping site stages and pasty tails I performed to one horizontal level.
EFFECT: filling of dumping sire stages in single turn, pilling of pasty tails after ore dressing redistribution at inclined base.
2 cl, 1 dwg
SUBSTANCE: method involves stripping operations performed by longitudinal stripping cuts along the direct system with laying of overburden rock into external dump arranged on upper platform of a non-working open-pit side, at stock-piling of overburden rock to external dump in tiers that are formed along dumping front. Dumping front is arranged at a right angle to an upper edge of a non-working side of the open pit and aligned with movement direction of overburden rock from the working face of longitudinal stripping cut to their dumping place.
EFFECT: reducing overburden rock re-excavation volumes.
SUBSTANCE: proposed device comprises electric heaters with adsorber arranged in series in air feed line. Note here that adsorber is composed of two different-diameter cylinders fitted one into another. Note also that adsorber smaller cylinder wall is tightly fitted on outer surface of tube discharging vapor-gas mix into atmosphere. Adsorbent is arranged in spring-loaded cassette displacing in vertical direction between larger cylinder inner surface and smaller cylinder outer surface. Said adsorber cylinders are made of bimetals. Note that larger cylinder inner surface material features thermal conductivity 2.0-2.5 times higher than that of outer surface material. Smaller cylinder outer surface material features thermal conductivity 2.0-2.5 times lower than that smaller cylinder on the side of the tube discharging vapor-gas mix into atmosphere.
EFFECT: higher efficiency of reaming.
SUBSTANCE: process of rock melting is done by heading set of equipment that melts the rock, separates the central core of the rock and removes it from well and tunnel. Heading set of equipment consists of a group of mechanisms made in a form of three supporting sections interconnected by movement mechanisms, one melting section that melts the rock by gas burners and drain cylinder, where melted rock flows. Gas burners are regularly engaged filling the cavity with burning gas that melts the rock in annular zone till liquid condition at specified depth. Then the burners are disengaged, compressed air or other compound is supplied in turns into movement mechanisms of each supporting section, heading set of equipment is moved forward from one position to the other with simultaneous squeezing of melted rock out through the discharge pipe into drain cylinder and exhaust gas is released by gas discharge tubes.
EFFECT: efficiency increase.
2 cl, 11 dwg
SUBSTANCE: invention refers to mining, and namely to extraction methods of mineral deposits from ore veins. Drilling of wells located at some distance is performed directly in ore vein. Wells are reamed using thermal fragmentation basically to boundary surfaces between ore vein and environment. Then, in ore vein between thermally reamed wells there drilled is pit for introduction of explosive charge. The latter is blasted in order to destruct the ore between reamed wells. After ore vein section is destructed with guided blast wave, the other well is drilled in ore vein at the specified distance from the previous place of blasting operations and thermally reamed, and the next pit is drilled between them for explosive fragmentation. The process is repeated for as many times as it is required for extraction of the necessary amount of ore from ore vein.
EFFECT: invention allows minimising the ore extraction cost by reducing the ore impoverishment.
12 cl, 2 dwg
SUBSTANCE: method includes destruction of rocks at face by impact of power tool and jets of working agent running out under pressure, removal of drilling mud to the well head by working gaseous agent reflected from the face. Face area is influenced with working gas agent under its temperature 700-900°C, agent jet pressure on the face 3-10 kgf/cm2 during 1-2 minutes upon simultaneous appliance of acoustic vibrations from operating agent and drilling unit heads on these jets and creating the conditions for sections change-over on the face; by means of such influence 5-10 mm of rock layer are weakened breaking its thermal and mechanical inertia; cooling agent is supplied to preheated face by short-time pulse during 1-3 sec with pressure 10-70 kgf/cm2 in the form of carbonic acid or mixture of water with carbonic acid, form network of fractures or tiny fractures in this layer, upon impulse action on the face by working gas agent under pressure 50-100 kgf/cm2 and temperature 600-800°C cooling agent residuals are vapourised, destroyed rock is removed from the face, constant upstream of drilling mud to the well head is created, choosing its lifting speed within 20-60 m/sec due to control of quantity from 2 to 9 m3/sec of gas flow supplied from thermo-gas generator to the part of working heads of drilling unit; after that the activities specified are repeated in the same sequence.
EFFECT: increasing effect of the method and efficiency of the drilling unit.
SUBSTANCE: group of inventions relates to mining industry and may be used to drill wells in loose rocks with simultaneous reinforcement of well walls. The method includes thermal softening and melting of a rock massif with subsequent formation and strengthening of well walls with axial feed of a drill string. Thermal softening of rocks and melting of rock mass in well walls is carried out by means of impact from a high-temperature penetrator, heated by laser beams focused on inner walls and the end part of the penetrator, to the temperature that exceeds temperature of rock melting by 200-250°. The device comprises a source of thermal energy, a hoist, a load-carrying cable, a high-temperature penetrator, a shaping crystalliser, a centraliser. The source of thermal energy is a laser connected via a current collector, a centraliser and a weighting agent by means of a fibre optic cable to a laser head placed inside the pipe cavity. The upper end part of the high-temperature penetrator body is rigidly connected to the pipe via the shaping crystalliser equipped with a well expander, freely installed on the external surface of the shaping crystalliser, and the external surface of the penetrator is formed by rotation of a chain line around the vertical axis.
EFFECT: invention provides for simultaneous and high-quality reinforcement and formation of well walls in loose and low cohesive rocks.
2 cl, 2 dwg
SUBSTANCE: drilling assembly includes core tube connected to heating source of the broken rock. As the heating source there used is laser, and assembly is equipped with cylindrical drilling bit with heat-resistant cutters, rod cable the lower part of which is connected to upper part of core tube by means of adapter, and swivel connected to upper part of rod cable and equipped with extractor of laser emission, which is connected to cylindrical drilling bit by means of fibre-optic cable.
EFFECT: increasing drilling efficiency of wells of various purpose in hard mine rocks.
SUBSTANCE: device includes pipe with communications for supply of fuel, oxidiser and cooling agent, as well as distributor located in upper pipe part and flame jet burner with a tool, which is mounted in lower pipe part. Between the pipe and flame jet burner there arranged is adapter with the bracket on which there fixed is the tool having inner channel interconnected with cooling agent supply communication. At that, bracket is attached to the tool in a movable manner and their position is fixed relative to each other by means of a limit stop. Such device creates thermoelastic stresses in rock lumps, which exceed their strength limit.
EFFECT: increasing rock destruction work efficiency and decreasing work costs.
2 cl, 1 dwg
SUBSTANCE: invention refers to the sphere of mining industry and may be used in secondary crushing of kimberlites. Method includes exposure of lump to various physical and technical processes, including thermal ones. Crushing of lump down to required grain size composition is carried out continuously by deepening narrow cuts, without development of any mechanical stress in kimberlite, by application of laser heating of removed material, in which diamond crystals in kimberlite thickness do not experience any loads, and diamonds that got into processing zone are heated to the temperature, which is safe for their quality and is not higher than 200÷250°C.
EFFECT: provision of partial load mode for diamond crystals in secondary crushing of kimberlites in process of their breaking in open pit.
1 tbl, 3 dwg
FIELD: mechanics, mining.
SUBSTANCE: proposed device incorporates a burner with rock destructing elements, line to feed air oxidiser, line to feed fuel, dust-and-gas suppression unit, pipe to withdraw a hot gas-vapor flow, control board and adsorber representing two concentrically arranged cylinders with adsorbent arranged there between the propose device differs in that the smaller cylinder is made in bimetal. Note here that the inner wall material features heat conductivity factor 2.5 to 3.0 times higher than that of outer wall material.
EFFECT: higher efficiency in prolonged operation due to invariable high quality of air drying.
FIELD: mining industry.
SUBSTANCE: present invention relates to the field mining using thermal fragmentation for the extraction of ore from narrow veins. The method of ore extraction from a vein with opposite side walls involves drilling of pilot holes in the vein directly, with certain pitch along the vein, reaming of the pilot holes by thermal fragmentation until the vein is fragmented, and removal of fragmented ore along the vein. The pitch is determined by the vein width. Along a part of the vein, the pilot holes are reamed gradually according to the given configuration, each second pilot hole is reamed in a greater degree, for its connection to the opposite adjacent pilot holes reamed earlier. The pilot holes are drilled and reamed in a given sequence, starting from drilling of the first group of three pilot holes, the first and third holes from the first group are reamed before reaming the second hole from this group. After the first group of holes, a group of two holes is drilled, the second hole from the second group being reamed before reaming the first hole from the second group. Fragmented ore is removed by suction.
EFFECT: profitable mining of narrow ore veins.
7 cl, 6 dwg
FIELD: mining industry, particularly devices for drilling and reaming wells in hard rock.
SUBSTANCE: drilling device has drilling tool made as boring rod with rock-cutting members and flame-jet burner installed at end thereof. Device also comprises pipelines for supplying fuel, water and air from discharge compressor outlet to flame-jet burner, as well as compressor with filter arranged at suction pipe inlet. Filter comprises body with condensate-tapper, converging nozzle and deflector. Flame-jet burner is made as a plurality of nozzles. Number of burner nozzles is divisible by 2. Each nozzle has curvilinear grooves extending from inlet orifice to outlet one in longitudinal direction. Curvature of groove generatrix of one nozzle advances in clockwise direction. Curvature of groove generatrix of another nozzle advances in counterclockwise direction.
EFFECT: reduced power inputs due to improved parameters of temperature fields and fields of stresses in well body where high-temperature fuel combustion processes cooperate with rock of complex structure and texture.