1712results about "Underground transport" patented technology

The invention discloses a tension optimization control system and method for a tensioning device of an underground coal mine belt conveyor, and relates to the technical field of tensioning device optimization control. The method comprises the steps that S1, multi-source tensioning data are collected in real time, and data preprocessing is conducted on the multi-source tensioning data; s2, predicting a coal flow load based on historical multi-source tensioning data, and taking a dynamic compensation measure for a tensioning device; s3, in combination with the multi-source tensioning data and the coal flow load prediction result, collaborative distribution is carried out on the hybrid execution mechanism, and automatic regulation and control are carried out based on the collaborative distribution result; s4, abnormity is detected in real time based on the multi-source tensioning data, and early warning is carried out; s5, performing safety risk assessment according to the real-time multi-source tensioning data, and taking adaptive regulation and control measures in combination with a safety risk assessment result and an anomaly detection result; the problem that faults are caused due to the fact that high-frequency pulsation and short-time impact of belt tension are difficult to adjust in time is solved.

A super-long working face mining method, comprises the following steps: sequentially providing a total of four roadways, i.e., a left edge roadway, a left middle roadway, a right middle roadway, and a right edge roadway, from left to right in a working face in a direction perpendicular to coal to be mined, wherein a coal pillar having a certain width is arranged between the left middle roadway and the right middle roadway; arranging in the working face a left transfer conveyor (1), a right transfer conveyor (21), and a scraper conveyor used to connect the two transfer conveyors, wherein the left transfer conveyor (1) is arranged in the left edge roadway, the right transfer conveyor (21) is arranged in the right edge roadway, and the scraper conveyor is arranged at the mining end of the working face; the left middle roadway and the right middle roadway being material roadways, arranging, in the left middle roadway and the right middle roadway, devices for delivering materials required by the working face, transmitting power, and delivering water; during working face mining, using two coal mining machines (22) for mining, to carry out mining operation on coal and coal pillar of the super-long working face between the left edge roadway and the right edge roadway.

A mining narrow-gauge flat crane comprises a flat car frame and a lifting arm, the lifting arm is installed on the upper portion of the flat car frame, at least two sets of wheel pairs which are arranged in a front-back spaced mode are arranged at the bottom of the flat car frame, the wheel pairs are connected to a rail of a haulage roadway in a sliding mode, and telescopic supporting leg structures are arranged on the front side and the rear side of the flat car frame. The middle of the left side and the middle of the right side of the flat car frame are each provided with a propping column, the two propping columns are arranged in a bilateral symmetry mode, the flat car frame is further provided with a hydraulic pump station and a console, the underground power source provides power for a motor of the hydraulic pump station, and the hydraulic pump station provides hydraulic power for the lifting arm, the telescopic supporting leg structure and the propping columns. And the console controls the lifting arm, the telescopic supporting leg structure and the propping column to act respectively. The lifting device is flexible in lifting position, meets the requirement of lifting at various positions, has a car stabilizing function during lifting, is high in safety, and can greatly reduce the difficulty of manually loading and unloading materials and reduce the labor intensity of workers.

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.

A combined dust suppression system for a metal ore unloading station, and a using method. The combined dust suppression system consists of an ore unloading station tunnel wall surface accumulated dust high-pressure water flushing device, an ore unloading station tunnel floor spraying, watering, and wetting device, and an ore unloading station ore train floor bidirectional high-pressure spray dust suppression device. The ore unloading station tunnel wall surface accumulated dust high-pressure water flushing device is used for performing manual flushing on a tunnel by means of high-pressure water in the travel direction of an ore unloading train, the ore unloading station tunnel floor spraying, watering, and wetting device is used for performing spraying, watering, and wetting on the tunnel, and the ore unloading station ore train floor bidirectional high-pressure spray dust suppression device isolates dust generated during ore unloading at the ore unloading station. The water consumption can be reduced, excessive water in an ore unloading pit that causes adhesion and blockage can be effectively avoided, the field applicability of high-pressure spray dust suppression measures is improved, and on-demand spray dust removal of a high-pressure spray device is achieved; high-pressure water is used for flushing accumulated dust on the tunnel wall surfaces of ore unloading stations, and the tunnel floors of ore unloading stations are sprayed, watered, and wetted, thereby achieving significant comprehensive dust suppression and dust control effects, and notable energy-saving effects.

The utility model relates to a lining steel pipe diversion tunnel curve section installation system which comprises a lining steel pipe, a horizontal assembling jig frame used for turning over a lining steel pipe welding stiffening ring and a moving trolley used for climbing pipes in a tunnel and assisting in butt joint of the lining steel pipe. The horizontal assembling jig frame has the advantages that the driving machine is arranged in the horizontal assembling jig frame to achieve synchronous rotation of the lining steel pipes, the limiting arms capable of being elastically opened and closed are arranged, the assembling and disassembling efficiency of the lining steel pipes is improved, the horizontal assembling jig frame can flexibly control the distance based on the rails, the overall installation effect is higher, consumed time is shorter, and the assembling and disassembling efficiency is improved. The traditional vertical assembling mode that the steel pipes are externally provided with stiffening rings is changed, and the practical value is high; a structural system of assembling type inner support section steel combined adjustable support rods is adopted to replace a traditional fixed welding umbrella-shaped inner support, and the field construction efficiency is improved.

The invention discloses an underground safety monitoring and polling device, and belongs to the technical field of coal mine safety polling. Comprising a conveying belt body and an inspection robot. A jacking and extending assembly is installed between the inspection robot and the supporting plate, when the detected cracks on the conveying belt body need to be repaired or marked, the jacking and extending assembly drives the supporting plate to descend and abut against the conveying belt body, and the walking conveying belt body drives the inspection robot and the conveying belt body to move synchronously; a cleaning roller is arranged on the other side, close to the supporting plate, of the bottom of the inspection robot, two spraying heads are arranged on the side, close to the supporting plate, of the cleaning roller at equal intervals, and a transmission mechanism drives the corresponding spraying heads to distinguish slight cracks or serious cracks, detected by the inspection robot, on the conveying belt body; according to the invention, respective processing can be carried out according to the crack degree, the detection efficiency is effectively improved, and the problem that an existing robot lacks an effective processing means is solved.

The invention relates to the field of coal mine equipment cooperative control, in particular to a multi-equipment cooperative control method and system for coal mine work. The method comprises the following steps: collecting mine multi-dimensional environment monitoring parameters in real time; environment change trend sensing and environment area distribution positioning are carried out, and an environment trend sensing distribution diagram is constructed; real-time operation state parameters of the drilling machine are obtained, maximum safe mining rate calculation and drilling power adjustment are carried out according to the environment trend perception distribution diagram, and maximum drilling power parameters are generated; according to the maximum drilling power parameter, the ore removal amount in the period is predicted, synchronous carrying coordination is carried out, and a dumper synchronous carrying coordination parameter is obtained; and calculating the latest depth of the drilling machine according to the environment trend perception distribution diagram, and performing environment air quality evaluation to generate a position air quality evaluation value of the drilling machine. By intelligently coordinating a plurality of pieces of coal mine equipment, the overall operation efficiency and safety of a coal mine are improved.

The invention provides a scraper conveyor coal flow real-time monitoring system and method, and belongs to the technical field of coal flow monitoring. The problem that the coal flow on the scraper conveyor is not uniformly distributed due to the fact that the coal cutting amount and the coal sweeping amount are not organically combined in the coal flow monitoring of the scraper conveyor in the prior art is solved. Comprising coal flow monitoring devices used for collecting coal flow data generated by coal cutting or coal sweeping of a left rocker arm or a right rocker arm in the coal mining process in real time, the two coal flow monitoring devices are connected with a coal flow resolver, and the coal flow resolver communicates with a coal mining machine control system and a scraper conveyor control system. The coal flow resolver is used for receiving data acquired by the coal flow monitoring devices on the left / right rocker arm, resolving the acquired data into actual coal flow, and sending the coal flow of the left / right rocker arm and total coal flow data to the coal mining machine control system and the scraper conveyor control system; the method is applied to monitoring and adjusting the coal flow of the scraper conveyor on the fully mechanized coal mining face.

The invention relates to a deep stratum well hole and cave mining system which comprises a traffic well system at least provided with two well holes communicating with a cave, a through-well-hole three-dimensional mining device and a control mechanism, the traffic well system is provided with a flow-back channel and an injection channel, and an internal channel formed by the well holes is configured to be a flow-back channel and an injection channel. The through-hole three-dimensional excavating device is used for carrying out form-controllable excavating on the cave; the through-well-hole three-dimensional filling device and / or the through-well-hole three-dimensional cleaning and transporting device are / is provided with a control mechanism, and the through-well-hole three-dimensional filling device conveys flow-state filler to the cave to conduct controllable-state filling so as to reduce the free space size of the cave; and the three-dimensional cleaning and transporting device for passing through the well hole is provided with a control mechanism, and the three-dimensional cleaning and transporting device for passing through the well hole cleans ore particles in the cave or transports the ore particles to the flowback channel, so that the circulating fluid discharges the ore particles out of the cave through the well hole. According to the invention, safe and efficient mining operation of a deep stratum can be realized.

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.

The invention discloses a multi-cutting-device collaborative coal cutting non-beveling feed system which comprises a machine nest cutting device and a scraper conveyor, the machine nest cutting device comprises a traction part, a rotating arm and a cutting roller, the cutting roller is arranged at the first end of the rotating arm, and the scraper conveyor is arranged at the second end of the rotating arm. The second end of the rotating arm is pivotally connected with the traction part, the rotating arm is used for driving the cutting roller to move relative to the coal seam, the extending direction of the scraper conveyor is perpendicular to the advancing direction of the working face, the two ends of the scraper conveyor are each provided with a machine nest cutting device, and the traction part of each machine nest cutting device moves along the scraper conveyor; the drum shearer is arranged in the middle of the scraper conveyor and used for cutting a coal seam, and the hydraulic support is arranged on the side, away from the working face, of the scraper conveyor and used for supporting a top plate. The multi-cutting-device collaborative coal cutting non-beveling feed system provided by the invention has the advantages of high cutting efficiency and small influence on the original process.

The invention discloses a low seam few-person fully mechanized coal mining face mining system and method, the system comprises a coal mining machine automatic control system and a hydraulic support electrohydraulic control system, the coal mining machine automatic control system realizes position information transmission and height adjustment of a coal mining machine; the hydraulic support electro-hydraulic control system achieves hydraulic support pulling, pushing and sliding, machine following and support moving and automatic control over actions of the hydraulic support, and the remote control system conducts three-machine linkage control over key production equipment of the fully mechanized coal mining face, automatic control, locking, sudden stop, fault diagnosis, automatic liquid supplementing and data information transmission on the hydraulic support. Coal face equipment has the functions of coal wall video monitoring and the like, and the production process is automatically completed; the coal mining process is intelligent, data transmission is informationized, and on-site operators operate and produce with few persons, so that manual intervention is reduced as much as possible, and high-yield, efficient and safe production is ensured.

The invention relates to an underground metal mine waterproof gate rubber belt transportation system, and relates to the technical field of mine transportation, the underground metal mine waterproof gate rubber belt transportation system comprises a force bearing wall and a door closing mechanism, an incoming mine conveyor is installed in the force bearing wall, and a movable conveyor is arranged on one side of the incoming mine conveyor; an ore drawing conveyor is installed on the side, away from the incoming ore conveyor, of the force bearing wall, a door frame is installed on the side, close to the ore drawing conveyor, of the force bearing wall, a door plate is movably connected to the bottom of the door frame through a rotating shaft, and a door closing mechanism is arranged on one side of the door plate; the door closing mechanism comprises an oil cylinder controller fixedly connected with one side of the force bearing wall. The water level sensor installed in the force bearing wall can monitor the water depth in the force bearing wall in real time, when the water level exceeds a set threshold value, the ground control terminal sends out a signal, the driving mechanism is controlled to drive the movable conveyor to be dislocated from the mine coming conveyor, and the door closing mechanism is controlled to seal a mine pit.

The invention discloses a novel pillar-free shallow hole shrinkage mining method with stud recovery, which comprises the following steps of: stoping ore bodies from top to bottom, and stoping a to-be-mined room (9.1) and a to-be-mined stud (8.1) of a next middle section after stoping of the previous middle section of ore body is finished; a stoping stud (8.2) is communicated with an outside-vein pedestrian ventilation filling raise (6) arranged on a footwall surrounding rock (16) of an ore body through a stud connection way (5), the lower end of the outside-vein pedestrian ventilation filling raise (6) is communicated with the top of a middle section stud ore removal roadway (10), and the top end of the outside-vein pedestrian ventilation filling raise (6) is communicated with an upper middle section stud ore removal roadway (3). And the right end of the upper middle section column ore removal roadway (3) is communicated with the upper middle section haulage roadway (2). According to the method, the problems of large intermediate pillar ore loss and difficulty in recovery in a traditional shallow hole shrinkage method are solved, the resource recovery rate is increased to 88% or above, the compressive strength of the filled artificial intermediate pillar is superior to that of a primary pillar, and the stope stability is remarkably improved.

The invention belongs to the technical field of coal mine shaft maintenance emergency communication, and particularly discloses a shaft maintenance communication device and method based on an electromagnetic coupling principle. The device comprises an elevator controller, a car room main controller, a signal transmission medium and two pairs of electromagnetic coupling coils. The elevator controller is arranged in an elevator cage, and the car room main controller is arranged in a ground winch control room; a pair of electromagnetic coupling coils is respectively arranged at the top of a skip bucket of the elevator and below a guide wheel through a lasso structure and is respectively used for sending and receiving signals. A closed-loop lifting link where a steel wire rope of the elevator is located is used as a signal transmission medium, and bidirectional long-distance transmission of signals is achieved between an elevator controller and a car room main controller based on the electromagnetic coupling communication principle. A maintainer can actively lock the hoister through the hoister controller, accidental starting of the hoister caused by misoperation of a winch control room is avoided, and after locking is released, a winch driver can be informed of starting and stopping the hoister through voice and dotting control signals.

A method for recovery of residual coal pillars by freezing accumulated water in room-and-pillar mining areas is provided. A feasibility of repeated mining of residual coal pillars in room-and-pillar goafs is distinguished based on production data and exploration data of a mine. An accumulated water in the room-and-pillar mining areas is frozen to replace a paste filling material, which envelopes collapse roofs and gangues in the room-and-pillar goaf as a whole. The room-and-pillar goaf is filled with a frozen ice body. Roadways and mining faces are arranged in the frozen ice body. Coal cutter cuts the residual coal pillars and the frozen ice body. With the advancing of the mining face, the residual coal pillars are gradually recovered and melted water after the cutting is pumped out.

The invention discloses an underground large-water mine fine ore recovery technology, and relates to the technical field of fine ore recovery. The method comprises the steps that S1, underground equipment is prepared and arranged; s2, collecting fine ore in the stope; s3, ore screening and material preparation; s4, determining the diameter of the pipeline; s5, calculating the pressure loss of the pipeline; s6, stirring and modifying the ore pulp; and S7, ore screening and wastewater recycling. The process belongs to active recovery of the fine ore, all the fine ore produced in the mine can be recovered, the intermediate transportation and crushing steps of the recovered fine ore are omitted, and the problem that the ore slurry formed after the fine ore meets water blocks a draw shaft and a drainage channel is solved. And the fine ore is directly recovered and passes through the crushing stage, so that the loss of the fine ore in the transportation process is effectively reduced, and the resource recovery rate is greatly improved. Compared with the prior art, fine ore can be actively recycled, and the recycling efficiency is high. Equipment used in the process is more flexible, and there is no need to excavate more laneway projects for treating the fine ore.

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.

The invention belongs to the technical field of coal mine underground auxiliary transportation equipment, and particularly relates to a vehicle body stability control system of a support withdrawing tractor and a control method of the vehicle body stability control system. Comprising a frame which is provided with a walking mechanism; the supporting and jacking mechanism is arranged on the frame, and a supporting and jacking oil cylinder is arranged between the supporting and jacking mechanism and the frame; the working mechanism is mounted on the frame, and the working mechanism comprises a telescopic mechanism which is hinged to the frame; the slewing mechanism is installed at the front end of the telescopic mechanism, a variable-amplitude oil cylinder is arranged between the telescopic mechanism and the slewing mechanism, and the telescopic mechanism swings up and down under the action of the variable-amplitude oil cylinder. The safety accidents such as tipping and sideslip caused by the fact that force needed by vehicle hoisting cannot be predicted are avoided, the vehicle is controlled not to longitudinally turn and sideslip, and operation safety is guaranteed.

The invention discloses a small-turning hinged support carrier, and relates to the technical field of carriers, the small-turning hinged support carrier comprises a front frame and a rear frame, the rear end of the front frame is hinged to the front end of the rear frame, the left side of the rear frame is provided with a left swing beam, the left swing beam is provided with a left front wheel and a left rear wheel, the right side of the rear frame is provided with a right swing beam, and the right swing beam is provided with a left rear wheel and a right rear wheel. A front right wheel and a rear right wheel are arranged on the right swing beam, a left steering oil cylinder and a right steering oil cylinder are further hinged between the rear end of the front frame and the front end of the rear frame, a left oil cylinder set is arranged between the left swing beam and the left side of the rear frame and used for adjusting the front-back inclination angle of the left swing beam, and a right oil cylinder set is arranged between the right swing beam and the left side of the rear frame and used for adjusting the front-back inclination angle of the right swing beam. A right oil cylinder set is arranged between the right swing beam and the right side of the rear frame and used for adjusting the front-back inclination angle of the right swing beam. According to the invention, the turning radius can be further reduced, so that the small-turning articulated bracket carrier can pass through a roadway with a smaller turning radius.

A vertical shaft construction slag sliding well bottom rock ballast gathering and protecting device comprises a supporting structure, an upper fence and a sliding groove structure are sequentially arranged on the supporting structure from top to bottom through a traction structure, and a lower fence is arranged on the lower portion of the sliding groove structure. The lower fence and the sliding groove structure are driven through a linkage structure. When the lower fence is unfolded, the sliding groove structure is folded; when the lower fence is folded, the sliding groove structure is unfolded. According to the stone slag gathering and protecting device at the bottom of the slag slipping well for vertical shaft construction, stone slag falling to the bottom of a vertical shaft can be effectively gathered; meanwhile, in the bottom deslagging operation process, the device can stop rock ballast falling from the upper portion.

The invention belongs to the technical field of coal mine machinery, and discloses a monorail crane falling centralizing device and centralizing method.The centralizing device comprises a fixing plate arranged on the inner side of a ground rail, a transverse moving guide rail, a transverse moving frame, a follow-up mechanism, a longitudinal moving guide rail and two push rods; the transverse moving guide rail is arranged on the fixing plate, and the direction of the transverse moving guide rail is parallel to the direction of the ground rail. The transverse moving frame is in sliding connection with the transverse moving guide rail, and the follow-up mechanism is arranged in the transverse moving frame in a lifting mode. The longitudinal moving guide rail is arranged at the top of the follow-up mechanism, and the direction of the longitudinal moving guide rail is perpendicular to that of the ground rail; the two push rods are vertically arranged at the two ends of the longitudinal moving guide rail respectively and can slide along the longitudinal moving guide rail; the design stroke of the push rod to the center of the longitudinal-moving guide rail is half of the distance between the inner sides of left and right wheels of a mine car The monorail crane falling centralizer can replace manual push-pull centralizing of mine car falling, fast and efficient mine car falling centralizing is achieved, and the transportation efficiency and safety of monorail crane falling are greatly improved.

The invention relates to the technical field of underground structures, in particular to a buffer chamber system for vertical feeding of mine materials, an excavation chamber is designed in a roadway near a feeding hole in the direction of the feeding hole to serve as a buffer channel, a buffer bottom table is arranged in the buffer channel, the surface of the buffer bottom table is a detachable steel plate, and the surface of the buffer bottom table is a 45-degree inclined plane; i-shaped steel is used for pouring and reinforcing the lower part with concrete, and a spring buffer device is mounted below the feeding hole for proper pressure relief. The problems of buffering, pressure relief and dust prevention after ground materials are vertically put into a well are solved, meanwhile, automatic collection after the materials are put can be achieved, the device can serve as a temporary buffering device to store part of the materials, and the materials are conveyed to a material demand site after being received.

A mixed feed efficient mining method includes the steps that firstly, an air way, a machine way and a cutting hole are formed, a coal pillar is reserved at the left end of a working face, the length of the reserved coal pillar is larger than that of a single-drum coal mining machine, a machine nest is formed in the right side of the reserved coal pillar, and the length of the machine nest is not smaller than the sum of the length of a double-drum coal mining machine and the length of beveling feed; the single-drum coal mining machines are arranged in the roadways at the two ends of the fully mechanized coal mining face, the double-drum coal mining machines are arranged on the scraper conveyor at the machine nest section, when the double-drum coal mining machines run to be close to the left end or the right end of the fully mechanized coal mining face, reverse beveling feeding is directly carried out for next coal cutting, and it is not needed that coal is cut back and forth after conventional beveling feeding is carried out; coal pillars left at the two ends of the working face are cut by the two-end single-drum coal mining machine through vertical feeding, coal mining at the two ends and the middle section of the working face is achieved at the same time, the mining efficiency is greatly improved, the number of arranged working faces is reduced, the labor time of workers is shortened, and the economic benefits of enterprises are increased.

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.

The invention provides an underground mining, selecting and filling integrated coal gangue filling and replacing section coal pillar method, and relates to the technical field of coal stoping, and the method comprises the following steps: respectively forming a transportation crossheading and an air return crossheading on the left side and the right side of a section coal pillar, and communicating the transportation crossheading with the air return crossheading through a crossheading connection roadway; and according to the serial number sequence, the strips with the serial numbers being even numbers are subjected to stoping and filling in sequence, and then the strips with the serial numbers being odd numbers are subjected to stoping and filling. An odd-even sectional type stoping method is adopted for the section coal pillars, after stoping, filling slurry is used for preparing a chamber to sort coarse coal and coal gangue, the coal gangue is made into coal gangue filling slurry to be filled into the goaf of the section coal pillars, integrated operation of stoping, sorting and filling is achieved, the method can be suitable for an underground stoping area with multiple working faces, coal pillar resources are efficiently recycled, and the mining efficiency is improved. The method has a good application prospect and a wide application range.

The present invention provides an energy-storage emergency power supply and driving control method and apparatus for a mine induction motor hoist. The method comprises: acquiring working states of a mains power loop 1 and a mains power loop 2 in real time; on the basis of abnormal working states of the mains power loop 1 and the mains power loop 2, determining whether to disable a mains power supply mode and enable an emergency power supply mode; enabling the emergency power supply mode, and switching the hoist from mains power supply to emergency power supply; starting hoist auxiliary units and a hoist electric control unit, and determining whether the hoist meets an operation condition; receiving a hoist operation instruction, and on the basis of the operation instruction, controlling the hoist to operate; and exiting an emergency working mode, and switching the hoist from the emergency power supply to the mains power supply. The present invention uses a combination of new energy storage and conversion to replace the original diesel engine power generation system, solving the problem of emergency power supply of a control system for a mine induction motor elevator, allowing for rapid establishment of an emergency rescue hoisting channel, and providing a safety guarantee for mine workers and production.

The invention discloses an underground belt conveyor speed regulation control system and method based on vision assistance, and the system comprises an image collection device which is used for collecting a coal flow image; the ground control center is used for obtaining a coal flow detection result according to the coal flow image; the driving device is used for driving a belt of the belt conveyor to move; the speed regulation control device is connected with the explosion-proof frequency converter, and the speed regulation control device is used for adjusting the running speed of the belt conveyor according to the coal flow detection result; and the comprehensive protection device is connected with the speed regulation control device, and the comprehensive protection device is used for monitoring the running state of the belt conveyor. Real-time coal flow is calculated based on machine vision, and according to the change state of the coal flow, the PLC control unit adjusts the rotating speed of the explosion-proof motor by controlling the explosion-proof frequency converter, so that the running speed of the belt conveyor can be automatically adjusted according to the coal flow, and the optimized energy-saving control of the mine coal conveying system is realized.

The invention discloses a multi-machine combined mining method for a gently inclined broken non-coal mine body containing an interlayer. The method comprises the following steps: S1, selecting mechanical mining equipment of an upper layer and a lower layer of an ore body according to the ore Prscherski coefficient, and determining corresponding mechanical non-explosive mining methods adopted by the upper layer and the lower layer of the ore body; s2, dividing the upper-layer ore body and the lower-layer ore body into a plurality of panels along the trend, and arranging corresponding mining preparation cutting projects according to a mechanical mining method determined by the upper-layer ore body and the lower-layer ore body; s3, performing corresponding stoping and ore removal engineering according to a mechanical mining method determined by the upper layer ore body and the lower layer ore body; and S4, performing corresponding filling engineering according to a mechanical mining method determined by the upper-layer ore body and the lower-layer ore body. Based on optimization and improvement of a mining machine fully mechanized mining and digging and anchoring all-in-one machine mining method in the prior art, two kinds of mechanical equipment can be adopted at the same time for stoping the interlayer-containing gently-inclined parallel multi-layer vein, separate mining and separate transportation are achieved, and the mining method has the advantages of being large in production capacity, high in safety, small in dilution loss and the like. The method is particularly suitable for stoping parallel ore body groups which are large in production scale and need separate mining and separate transportation.