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Underground coal mine auxiliary transportation control system based on multi-source data fusion
ActiveCN120589001AExternal condition input parametersEarth drilling and miningControl systemEnvironmental engineering
The invention discloses a coal mine underground auxiliary transportation control system based on multi-source data fusion, and relates to the technical field of coal mine underground work transportation control. The multi-source heterogeneous data comprises a ground attachment coefficient, a coal seam inclination angle, a vehicle state and a roadway environment parameter; according to the method, multiple sensors are arranged on a roadway of a mine and a trackless rubber-tyred vehicle, multi-source heterogeneous data of a ground adhesion coefficient, a coal seam inclination angle, a vehicle state and roadway environment parameters related to auxiliary transportation are obtained in real time, and a two-way mapping model of a digital twinning and physical entity is constructed based on the multi-source heterogeneous data; model parameters are updated in combination with federal learning, a closed-loop cyclic feedback mechanism among the running state of a vehicle physical entity, roadway environment influence and a control instruction is realized, a roadway complex change environment can be continuously adapted, and the self-adaption and control learning ability is improved.
Owner:XIAN HEAVY WISDOM MINE ENG TECH CO LTD +2
Mine branch draw shaft drilling transmission mechanism
The utility model provides a mine branch draw shaft drilling transmission mechanism, belongs to the technical field of mine construction, and is used for drilling a plurality of parallel blast holes in the branch draw shaft construction process. The transmission mechanism comprises a drilling power source and a universal coupling, a plurality of transmission wheels are rotationally arranged on the drilling base plate, and transmission structures are arranged on the peripheries of the transmission wheels; the transmission wheels comprise at least one driving wheel and a plurality of driven wheels, the positions of the driving wheels are fixed, the positions of the driven wheels on the drilling base plate can be adjusted, penetrating shaft holes are formed in the centers of the driven wheels, the sections of the shaft holes are polygonal, and the shaft holes are in sliding fit with the drilling rod. The driving wheel and the driven wheel synchronize power through a transmission structure, and power is transmitted between the driving wheel and the drilling power source through a universal coupling. The mechanism effectively solves the problem of drilling parallel blast holes in branch draw shaft construction, improves the construction efficiency and accuracy, has the advantages of simple structure, convenience in operation, high adaptability and the like, and remarkably improves the automation level of mining.
Owner:YUNNAN TIN +1
A mobile device for safely unblocking a mine chute
The present invention discloses a mobile device for safely unblocking a mine chute in the field of mining machinery technology, comprising: a mobile device, an explosives mounting assembly is provided on the mobile device, the explosives mounting assembly includes a telescopic rod; a winding wheel is provided on the telescopic rod, and the winding wheel is provided with a flexible connecting member for driving the telescopic rod to extend; a rope reel is provided on the explosives mounting assembly for driving the winding wheel to rotate; the rope reel includes a rope reel body, a spline shaft slidingly arranged on the rope reel body, a first drive assembly for driving the spline shaft to slide, and a second drive assembly for driving the spline shaft to rotate; the present invention drives the shift fork to rotate by the driving member, so that the shift fork moves with the spline shaft to the inside of the rope reel body, realizes the retraction of the spline shaft to separate from the winding wheel, and through the above method, the rope reel itself has the function of separating from the external winding wheel, does not rely on external facilities, and reduces the probability of the rope reel and the winding wheel being unable to be separated.
Owner:ANHUI JARLO CONSTR MACHINERY
Coal slipping hole with multi-stage buffering function
The invention discloses a coal slipping hole with a multi-stage buffering function, and relates to the technical field of coal mine transportation, the coal slipping hole comprises a feeding port and a communicating pipe arranged at the bottom end of the feeding port, and the communicating pipe can be communicated with a discharging port of a raw coal pulverizer through the feeding port; further, the crushed raw coal can enter an inner cavity of the communicating pipe; the dust removal buffering mechanism is used for removing dust in the crushed raw coal, by arranging the dust removal buffering mechanism, the raw coal fragments discharged from the communicating pipe can be buffered, meanwhile, dust and dust in the raw coal can be absorbed and collected, and dust and dust removal work is achieved along with raw coal accumulation; and the anti-blocking mechanism is used for preventing raw coal from blocking in the dust removal buffering mechanism, and the wrapping box is arranged on the outer surface of the anti-blocking mechanism, so that the effect of multi-stage buffering of the raw coal during raw coal transportation is achieved.
Owner:SHAANXI ZHENGTONG COAL IND CO LTD
Shield machine subsequent equipment segment alignment device
To provide a device for aligning subsequent equipment segments of a shield machine during tunnel construction using the shield machine. [Solution] An adjustable lifting mechanism 2 is provided on the outer wall of the device body 1, a fixed block 3 is provided inside the device body, a connecting plate 4 is fixedly connected to the bottom of the fixed block, a slide rail is opened inside the connecting plate, a clamping assembly is provided at the bottom of the connecting plate, and a buffer assembly is provided inside the clamping assembly, which includes a movable block 5, a clamping block, and a rubber pad, and the outer wall of the movable block is slidably connected inside the slide rail. The output end of the motor rotates the rotating rod, which drives the movable block along the slide rail via the two connecting rods, further achieving stable clamping of different segment grooves, and the buffer assembly is used to effectively reduce the instantaneous clamping force on the segment grooves.
Owner:CHINA RAILWAY LIUYUAN GRP CO LTD
Vertical shaft excavation construction method
The invention discloses a vertical shaft excavation construction method, a vertical shaft to be excavated is divided into a first vertical shaft to be excavated and a second vertical shaft to be excavated, and the construction method comprises the following construction steps that S1, an upper flat tunnel is excavated and constructed to the bottom of the first vertical shaft to be excavated to form a first cross section, the lower flat tunnel is excavated to the bottom of the second vertical shaft to be excavated to form a second cross section; s2, a section of the lower portion of the first shaft to be excavated serves as a protection section to be reserved, and construction is conducted on the top of the first shaft to be excavated to the top of the protection section through a normal well method; a slag sliding pilot shaft is constructed downwards along the axis of the second vertical shaft to be excavated through a raise-boring method; s3, after the slag sliding pilot shaft construction is completed, the protection section continues to be constructed to the first cross section through the normal well method; and S4, a second vertical shaft is planned to be excavated to a second cross section through inverse well construction by adopting construction equipment of a normal well method. According to the vertical shaft excavation construction method, the technical problem that the construction difficulty of the deep and large vertical shaft is high is solved.
Owner:POWERCHINA ZHONGNAN ENG +1
System for moving work machine and logistic method in mining or quarrying
PendingUS20260048623A1Tractor-trailer combinationsItem transportation vehiclesLogistics managementMachine
The aspects of the disclosed embodiments relate to a system for transferring a crawler chassis work machine, wherein the system includesan articulated frame steered transfer vehicle with a tow point, at least one dump hinge implemented with a transverse pivot shaft, a dump bed articulated with thee dump hinge, and a support point placed at a distance below the dump hinge,a low trailer with a platform for supporting the work machine on the low trailer during transfer, and a drawbar for fastening the low trailer pivotally to the tow point for towing the low trailer with the transfer vehicle,a draw arrangement supported to the pivot shaft and the support point non-rotatably with a torque arm included in the draw arrangement, wherein the draw arrangement includes a draw element for connecting the low trailer to the transfer vehicle with the draw arrangement.
Owner:SLEIPNER GROUP OY
Underground material intelligent transportation auxiliary system based on magnetic navigation and AGV
PendingCN121777996AEarth drilling and miningRailway signalling and safetyMining engineeringControl system
The invention discloses an underground material intelligent transportation auxiliary system based on magnetic navigation and an AGV. The underground material intelligent transportation auxiliary system comprises a navigation system, a safety monitoring system, a dispatching system and a control system. The navigation system is used for outputting positioning information data of the traction machine head and transmitting the positioning information data to the control system. The safety monitoring system is used for transmitting obstacle signal data, gas concentration data and mine car load data to the control system. The dispatching system is used for outputting a traction machine head dispatching instruction to the control system. The control system receives traction machine head real-time positioning information data transmitted by the navigation system, obstacle signal data / gas concentration data / mine car load data transmitted by the safety monitoring system and dispatching instruction data transmitted by the dispatching system, and outputs a control instruction to the execution mechanism; the executing mechanism comprises an electric control steering device, an electric control braking device and an electric control accelerator device and is used for executing the control instruction transmitted by the control unit, controlling steering and braking of the traction machine head and driving according to the set speed.
Owner:SHANDONG UNIV OF SCI & TECH
Mining terrain-adaptive rotatable dust reduction belt conveying device
The invention provides a mining terrain-adaptive rotatable dust reduction belt conveying device. The mining terrain-adaptive rotatable dust reduction belt conveying device comprises a conveying assembly, a moving assembly and a dust reduction assembly; the conveying assembly comprises a conveyor, a belt and hydraulic supporting legs. The moving assembly comprises a frame chassis and crawler-type tires, and a rotating platform is arranged above the frame chassis; the dust reduction assembly comprises a pipeline support, a dust suppressant pipeline, a dust suppressant nozzle, a pressure spraying pipeline and a pressure spraying nozzle. High trafficability and flexibility of complex terrains can be guaranteed, coal transportation can be carried out more conveniently and efficiently, the working intensity of operators is effectively relieved, and coal dust is reduced; the coal transportation route, direction, angle, transportation route and transshipment height difference can be adjusted in time; the stability of the coal in the conveying process is ensured; the generation of coal dust is inhibited; the stability and the balance of the conveyor in the rotating process are ensured; transfer coal dust can be effectively reduced in the whole operation process, and the operation efficiency of operators is improved.
Owner:HUANENG COAL TECH RES CO LTD +2
Device and method for generating power by utilizing kinetic energy recovery
The invention relates to the technical field of mining equipment, in particular to a device and method for power generation through kinetic energy recovery, the device comprises a machine body, a bearing plate and a power generator, and the machine body is a hollow container with an opening in the upper end; the bearing plate is elastically arranged in the machine body through a spring device, and a fixed crushing structure is arranged on the bearing plate; the generator rotor is connected with the bearing plate through the motion conversion structure, so that the linear motion of the bearing plate is converted into the rotary motion of the generator rotor through the motion conversion structure; the fixed crushing structure comprises a mounting part, a retainer and an extrusion part. Through mutual cooperation of the mounting part, the retainer, the first elastic element and other structures, the effect of automatically fixing ores on the bearing plate is achieved, the ores are prevented from being popped out of the machine body by the spring device, and kinetic energy of the ores is fully recycled. And meanwhile, through cooperation of an extrusion part, a retainer, a driving gear, a rack and other structures, the effect of crushing the ore by utilizing kinetic energy of the ore is achieved, and subsequent transportation of the ore is facilitated.
Owner:WANYAO ZHAOFENG ELECTRIC POWER TECHNOLOGY (GUANGDONG) CO LTD +1
Protection device for preventing iron from being wound into belt conveyor
The invention relates to a protection device for preventing iron from being wound into a belt conveyor, and belongs to the technical field of belt conveyors. Comprising a frame, two I-shaped supports and two moving blocks are arranged at the head end of the frame in a sliding mode, two transmission rollers distributed up and down are rotationally arranged between the two I-shaped supports, an adjusting roller is rotationally arranged between the two moving blocks, and a loading frame is arranged between the upper ends of the two I-shaped supports; the left side and the right side of the head end of the frame are each fixedly provided with a fixing base, a row of supporting rollers are arranged in each fixing base in a sliding mode, and a first linkage mechanism is arranged between the supporting rollers and the loading frame. A second linkage mechanism is arranged between the I-shaped bracket on one side and the moving block; the problem that coal accumulation is formed at the machine head end of the belt conveyor when supporting materials are detached at present is solved.
Owner:YUWU COAL CO LTD OF SHANXI LUAN GRP
Controlling operation of a work machine
A method is provided, which includes receiving an indication from a first safety system associated with an isolated operating area that a safety operation is to be performed for the work machine operating in the isolated operating area, determining, in response to receiving the indication, a status of a second safety system associated with the work machine, determining, based on the safety operation and the status of the second safety system associated with the work machine, an adapted safety operation, and controlling operation of the work machine based on the adapted safety operation.
Owner:SANDVIK MINING & CONSTR OY
Roadway rescue equipment material coordination device
The present application relates to roadway rescue technical field, especially in a kind of roadway rescue equipment material collaborative equipment, solve the prior art is to separate equipment and material transport, material is mainly pipeline, this traditional transport mode, it is not convenient for fast transport, and then greatly reduce the efficiency of material and equipment transport problem.A kind of roadway rescue equipment material collaborative equipment, including frame, the inner side of frame is fixedly connected with support plate, and the top of support plate is fixedly connected with several bearing frames.The way proposed in the present application uses clamps to hold the equipment securely, which can improve the stability of the equipment. At the same time, the pipes can be placed on the arc-shaped plate in the frame, which can carry the pipes. The press plate can be used to stabilize the pipes. The track wheels can be used to transport the equipment and pipes simultaneously in the roadway, which greatly improves the efficiency of transportation.
Owner:SHANDONG LAIMEI MACHINERY EQUIPMENT CO LTD
TBM (Tunnel Boring Machine)-based steeply inclined thin vein non-explosive continuous mining method
The invention discloses a steeply inclined thin vein non-explosive continuous mining method based on a TBM (Tunnel Boring Machine), and solves the problems that corner ore bodies are difficult to dispose, the turning radius of the TBM is limited and the mining efficiency is influenced when the TBM is applied to underground ore body mining in the existing method. Ores are conveyed to a mining area draw shaft through a belt for ore removal, supporting equipment matched with a TBM is used for supporting, unmined ore is recycled through corner ore bodies generated in the TBM tunneling process, a spiral slope ramp is arranged at the end of each ore body, and small-radius turning of the TBM is achieved; according to the method, the problems that underground turning of the TBM is difficult and the TBM is difficult to enter the next layer for mining are solved by additionally arranging the spiral ramp layer changing project; the walking problem of the TBM when the next layer is stoped is ensured; and a non-metal supporting material and TBM supporting equipment are adopted, so that the stoping of the next layer is not influenced on the premise of safety, and the mining efficiency is improved.
Owner:ZHEJIANG TUNNEL ENG GRP CO LTD +1
Phosphorite mining method
The invention discloses a phosphorite mining method which comprises the following steps: constructing and cutting an uphill along a top plate of an ore body from a lower layered gate way to an upper layered gate way, and supporting by adopting a resin anchor rod, a reinforcing mesh and a mining anchor cable; cutting groove construction is conducted, medium-length holes are formed in the lower layered gate way, explosives are loaded in the medium-length holes to conduct blasting layer by layer, a cut uphill bottom plate is continuously lowered till an ore body bottom plate is reached, and the cutting grooves are formed; fan-shaped medium-length holes are constructed in the lower layered gate way, a plurality of rows of fan-shaped medium-length holes are formed in the vertical direction, a plurality of holes are formed in each row of fan-shaped medium-length holes in the vertical direction, blasting is conducted with the cutting groove as a vertical free face, and the fan-shaped medium-length holes are blasted in batches; and charging powder in the lower layered roadway, and after blasting, entering a stope by adopting a remote control forklift for ore removal. The vertical free surface blasting technology is adopted for blasting the medium-length holes in batches, and the method has the advantages that the top plate operation safety is improved, the mining period is shortened, and the ore recovery rate is increased.
Owner:SHENZHEN BATIAN ECOTYPIC ENG
Push-pull type guardrail of reversed loader
ActiveCN223523777UUnderground transportSafety equipmentsArchitectural engineeringStructural engineering
The push-pull type guardrail of the reversed loader comprises an overhead rail and a plurality of protective nets which are located below the overhead rail and can be folded and stretched, the heads and the tails of the protective nets are rotationally connected through hinges, and the middle portion of the top end of each protective net is provided with a moving assembly in rolling connection with the overhead rail through a U-shaped support. When the transfer machine runs, only the protective nets need to be pulled open, all the protective nets are unfolded to form a barrier, a warning board is hung on the protective nets, personnel entering an equipment operation area can be greatly reduced, a good warning effect is achieved, the protective nets are hung below the hanging rail, personnel carrying is not needed, and the safety of the transfer machine is improved. And the situation that the personnel deliberately move away and do not use is completely eradicated, the working safety environment is improved, and the habitual violation phenomenon of the personnel is reduced.
Owner:SHAANXI JIANXIN COALIFICATION
Sectional mechanical optimization configuration method for tunnel construction electric machinery
The invention relates to the technical field of engineering resource configuration optimization, in particular to a tunnel construction electric machine sectional type mechanical optimization configuration method, which comprises the steps of determining a charging adaptation value of a charging pile to an electric machine based on the battery capacity of the electric machine and the output power of the charging pile; based on the drilling footage of each cycle and the section area of the tunnel, calculating the total slag removal amount of each cycle of the tunnel; calculating the dumper times per cycle based on the total ballast discharge amount per cycle and the single loading capacity of the dumper; determining a single operation cycle of the dumper based on the transportation distance, the dumper speed and the loading and unloading time; determining the number of the dump trucks based on the single operation cycle; according to the dumper times per cycle and the dumper number, the dumper round-trip times are calculated and determined; the installation position of the charging pile is determined, and the electric machinery is charged in sequence according to the flow rhythm; according to the method, the tunnel muck removal efficiency is effectively improved, and meanwhile, the accuracy of segmented mechanical optimization configuration of the tunnel construction electric machinery is improved.
Owner:GANSU PUBLIC AIR TRAVEL IND CO LTD
Grouting system of arch bolting and grouting combined operation trolley
A grouting system of an arch bolting and grouting combined operation trolley relates to the technical field of tunnel construction equipment, is mounted on one side of the bottom of an operation platform and comprises a telescopic sliding rail, a mounting frame, a spiral conveyor and a stirring device. The two sides of the top of the mounting frame are in drawable connection with one side of the bottom of the working platform through telescopic sliding rails correspondingly. A spiral conveyor used for conveying slurry is arranged at the bottom in the mounting frame, and a stirring device is correspondingly arranged above the spiral conveyor; a discharging hole of the stirring device is correspondingly communicated with a feeding hole of the spiral conveyor through a gate valve; the stirring device is integrated on the working platform, so that grouting operation is facilitated during tunnel construction, the working space of the platform surface of the working platform is not occupied, normal operation of other working equipment on the platform surface of the working platform is not affected, and the working platform is convenient and fast to use.
Owner:LUOYANG ZHONGTIE STRONG MACHINERY
Large-dip-angle belt conveyor transportation system for metal surface mine
The utility model relates to a metal surface mine large dip angle belt conveyor transportation system which comprises a coarse crushing station system, a first transfer station, a second transfer station and a third transfer station. The first transfer station is connected with the second transfer station through a belt conveyor, and the second transfer station is connected with the third transfer station through a large-dip-angle belt conveyor; the inclination angle of the large-inclination-angle belt conveyor is larger than 15 degrees and smaller than 35 degrees. Compared with the prior art, the large-dip-angle belt conveyor has the advantages that by applying the large-dip-angle belt conveyor technology, the capital construction investment of a mine can be greatly reduced; the capital construction time is shortened, the metal surface mine deep mining transportation distance is shortened, and the mine transportation cost is saved; and meanwhile, the routing length is shortened through the routing arrangement of the large-dip-angle belt conveyor, side slopes under unfavorable geological conditions are effectively avoided, and the safety and reliability of the system are improved.
Owner:SHEN KAN QINHUANGDAO GENERAL ENG DESIGN & RES INST CORP MCC
Self-moving filling behind support method for gangue based on high porosity filling material
A self-moving filling behind support method for gangue based on a high porosity filling material, comprising: arranging slurry spraying rails (4) behind hydraulic supports (2), and arranging a slurry spraying device (16); performing coal cutting on the front working surface, moving the supports, pushing scraper conveyors (8), and then pushing the slurry spraying rails (4), and delivering coal gangue particles behind the first hydraulic support (2); starting to perform slurry spraying, consolidating the coal gangue and the slurry to form a filling body (3), and stopping performing slurry spraying and coal gangue falling when the thickness of the newly formed filling body (3) reaches 0.3 m; and moving the slurry spraying device (16) to the position behind the next hydraulic support (2), starting to perform coal gangue falling at the position, spraying slurry to the coal gangue, and repeating the steps until coal mining on the working surface and the filling operation are completed. The method is simple, safe and efficient, the self-moving slurry spraying behind support operation can be carried out, free back and forth is allowed to spray a rapid binding material during coal gangue falling, and the coal gangue and the rapid binding material jointly form a filling body, thereby achieving efficient filling mining.
Owner:CHINA UNIV OF MINING & TECH +1
Unmanned shoveling and transporting device for underground mine mining
Owner:SHANDONG DINGTUO SAFETY TECHNOLOGY SERVICE CO LTD
Device and method for monitoring the up and down movement of a flight on a flight conveyor based on an ultra-wideband radar
The application discloses a kind of based on ultra-wideband radar's on the scraper conveyor up and down slide monitoring device and method, belong to coal mine safety state monitoring technical field.The monitoring device includes the electric rotating platform installed on the head of scraper conveyor, linear array antenna pointing to the end face end coal wall is installed on the electric rotating platform, linear array antenna connects ultra-wideband imaging radar signal module;Industrial computer sends instruction to control the receiving and sending of ultra-wideband imaging radar signal module, the rotating movement of electric rotating platform respectively;Linear array antenna installed on the head of scraper conveyor is driven by electric rotating platform, periodically collects the radar image of end face end, then by registration with the image periodically collected before, to deduce the distance that the head of scraper conveyor up and down slide;It has strong robustness to the harsh environmental conditions of end face end coal dust water vapor, and monitoring data is accurate.
Owner:YANSHAN UNIV
Movable meeting platform for tunnel
A movable meeting platform for a tunnel comprises a slope trolley, a slope track, a flat trolley, a high platform and a meeting track, the tunnel track is arranged on the tunnel, the slope trolley and the flat trolley are movably arranged on the tunnel track, the slope track is arranged on the slope trolley, the high platform is arranged on the flat trolley, and the meeting track is arranged on the slope trolley. The meeting track is arranged on the high platform, and the slope track is in butt joint with the meeting track. According to the utility model, the slope trolley and the flat trolley are arranged, and the slope trolley and the flat trolley can move by utilizing the original track so as to realize the integral movement of the meeting platform, so that the meeting platform can be moved to other positions of a tunnel for use without repeated assembly and disassembly, thereby effectively improving the construction efficiency, shortening the construction period and saving the construction cost; in addition, the original track in the tunnel does not need to be dismantled, and therefore waste of manpower and material resources caused by dismantling of the original track is avoided.
Owner:CHINA TUNNEL CONSTRUCTION CO LTD GUANGDONG
Continuous deslagging system for earth pressure rectangular tube push bench and tube push bench system
Compared with the prior art, the continuous deslagging system for the earth pressure rectangular tube push bench and the tube push bench disclosed by the utility model comprise a slag receiving position and a slag conveying position, the slag receiving position is positioned below the slag discharging channel; the residue hopper is used for loading residue soil and has a full residue state and an empty residue state; the muck receiving device is located at the muck receiving position and used for receiving muck output by the muck discharging channel through the muck hopper in the empty muck state; the muck conveying device is used for conveying the muck buckets in a full-muck state to a starting well and conveying the muck buckets in an empty-muck state back to a muck conveying position; the residue hopper moving mechanism is arranged on the residue receiving device and the residue conveying device; the slag hopper lifting mechanism is arranged on a pipe joint lifting lug of the pipe push bench; the slag bucket hoisting mechanism is used for hoisting the slag buckets in the slag empty state on the slag conveying device and lowering the slag buckets to the slag receiving device. Compared with the prior art, the technical scheme provided by the utility model has the advantages that the downtime of equipment can be reduced, the tunneling efficiency is improved, and the construction continuity of the equipment is improved.
Owner:CHINA RAILWAY SUNWARD ENG EQUIP CO LTD
Solid potassium salt mine underground screening and crushing integrated ore storage bin system
The invention discloses a solid potassic salt mine underground screening and crushing integrated ore storage bin system, and belongs to the technical field of solid potassic salt mine mining. The system is composed of a roadway type raw ore bin, a feeding chamber and a vertically-arranged screening and crushing chamber. The raw ore bin is communicated with the main transportation roadway and is internally provided with a bulldozer; the feeding chamber is provided with a surge bin and a screw feeder; a linear vibrating screen and a double-geared-roller crusher are arranged in the screening and crushing chamber. The core of the method is that oversize coarse grain materials are returned to a surge bin through an oversize transfer belt conveyor to form closed-loop crushing circulation, and it is ensured that the ore removal granularity is smaller than or equal to 20 mm. The problem that sylvite ore is prone to deliquescence and hardening is fundamentally solved through the roadway type ore storage bin, underground storage, screening and crushing integrated operation is achieved, the ore directly enters an ore dressing, decomposing and crystallizing workshop after being lifted to the ground, the ground ore dressing links are reduced, occupied ground sites are reduced, the working efficiency and the system reliability are improved, and the production cost is reduced. The method is especially suitable for efficient mining of deliquescent solid potassic salt ore.
Owner:ZHENGZHOU INSTITUTE OF ADVANCED STUDIES HENAN UNIVERSITY OF TECHNOLOGY
Fully-mechanized mining hydraulic support transfer device
ActiveCN224090197UImprove stabilityWill not interfere with normal transportationEarth drilling and miningCarriagesStructural engineeringMechanical engineering
A fully-mechanized coal mining hydraulic support transfer device comprises a supporting seat used for bearing a disassembled fully-mechanized coal mining hydraulic support, two opposite indicating grooves are formed in the supporting seat, the placing position can be determined based on the indicating grooves when the disassembled fully-mechanized coal mining hydraulic support is placed on the supporting seat, and a plurality of wheels and a plurality of supporting plates are arranged at the bottom of the supporting seat. The supporting base is provided with two opposite vertical plates in the advancing direction of the supporting base, the supporting plate and the vertical plates extend towards the lower side of the supporting base, and gaps exist between the supporting plate and the ground and between the vertical plates and the ground. The placing position of the disassembled fully-mechanized mining hydraulic support can be determined according to indication of the indication groove, it is guaranteed that the gravity center of the disassembled fully-mechanized mining hydraulic support is located at a proper position, and the stability of the transfer device is enhanced.
Owner:YIYANG YILUO COAL IND CO LTD
Efficient mechanical integrated top plate support brushing and expanding process
The invention provides an efficient mechanical integrated roof support brushing and expanding process, and relates to the technical field of coal mine retracement, and the process comprises the following steps: S1, safety inspection of a construction area; s2, the coal mining machine brushes and expands layers on the coal wall to a preset height in a layered mode; s3, after the equipment is locked, wall tapping and top asking are executed; s4, a flexible net is laid, and temporary supporting of the top slope is implemented; s5, permanent support of the roof is implemented in stages, a multi-cutter progressive support mode is adopted, permanent support is synchronously propelled after brush expansion of each cutter, and the support stage and the brush expansion stage of the coal mining machine are alternately carried out; s6, the coal mining machine conducts bottom discharging to complete brushing and expanding circulation; the flexible net is used for replacing anchor net supporting, the supporting empty top time is short, the safety coefficient in the construction period is increased, the construction procedures of conveying the anchor net and temporary supporting are reduced, the labor intensity of workers is reduced, meanwhile, the construction efficiency is improved, the flexible net supporting is used for replacing the anchor net supporting, the flexible net supporting is integrated, the lap joint condition does not exist, the supporting strength is enhanced, and the supporting effect is good. And no supporting blind area exists.
Owner:CHINA COAL XINJI ENERGY CO LTD
Chute liner for a mine
This utility model discloses a chute liner for mining, comprising a steel plate. The bottom of the steel plate is cast with low-carbon alloy steel, and the upper part is cast with high-chromium alloy. Hard alloy rods are embedded within the high-chromium alloy. Both the steel plate and the low-carbon alloy steel have an arc-shaped structure. During liner casting, the steel plate needs to be embedded within a foam-made mold layer, and the surface of the steel plate needs to be ground and pickled to ensure it is rust-free. This invention solves the problem that many current large-scale mine chute liners are produced using only high-chromium cast iron. The bottom of the chute liner and the chute body are both arc-shaped, and if the fit between the liner and the chute body is not tight, voids will occur. The liner is easily cracked under the impact of stones, requiring the addition of filler during installation, increasing the installation difficulty. Furthermore, high-chromium cast iron has high wear resistance but poor machinability.
Owner:KAILI DONGCHEN CASTING CO LTD
TBM tunnel circumferential drilling device
The utility model discloses a TBM tunnel annular drilling device which comprises a telescopic beam, a first rock drilling machine and a second rock drilling machine, the first rock drilling machine and the second rock drilling machine are arranged at the two ends of the telescopic beam, the telescopic beam is fixedly sleeved with at least two sets of supporting frames, and walking mechanisms and fixing mechanisms are arranged on the supporting frames. The telescopic beam is further provided with a drive control mechanism. The device has the beneficial effects that by adopting the device, mechanical construction of the TBM adit grouting hole can be realized, the construction efficiency is improved, and the labor cost is saved; the arranged walking wheels not only can directly walk in a tunnel wall, but also can walk on a track through a plate trailer, rock drilling rigs are arranged at the two ends of the device, and one device can achieve radial full coverage and axial large-angle drilling of a tunnel; the device can adapt to grouting hole construction of a TBM tunnel with a large gradient; the supporting shoes, the walking wheels and the transportation support designed for the TBM tunnel subjected to preliminary supporting can be highly matched with a tunnel transportation flat car, and switching of a long-distance working face is achieved.
Owner:CHINA INTERNATIONAL WATER & ELECTRIC CORPORATION
Assembling machine assembly disassembling and transferring method
The invention provides an assembly machine assembly disassembling and transferring method which comprises the following steps: taking a front side wheel of an assembly machine moving frame as an overturning fulcrum, and overturning the whole assembly machine moving frame backwards to a horizontal state by utilizing hoisting equipment; an extension rail is installed on the rear side of the joist rail, and the whole assembly machine assembly is moved backwards to the position above the box culvert; integrally translating to a box culvert in place by combining the traction of hoisting equipment; hoisting equipment is used for hoisting the assembling machine assembly to a preset loading position on the box culvert, load-bearing equipment is placed downwards, and the assembling machine assembly is transported out of the tunnel after being borne. According to the method, through the overall transfer technology, the assembly machine components are completely transferred to the box culvert from the joist and loaded, protective disassembly of the assembly machine components is achieved, it is guaranteed that core components are not damaged in the secondary process, and secondary utilization is supported; secondly, the construction safety is effectively guaranteed, the fire operation frequency is obviously reduced, and the fire risk and the generation of harmful gas are reduced; the in-hole dismantling efficiency is effectively improved, the construction period is shortened, and the labor cost is reduced.
Owner:TIANHE MECHANICAL EQUIP MFG