55 results about "Haulage" patented technology

The internal geometry of a haulage vehicle is identified. A material transfer operation is controlled to transfer material from a material transfer vehicle to the haulage vehicle based on the internal geometry of the haulage vehicle.

The utility model discloses a cleaning device for tires of a transport vehicle in a mine, which relates to the technical field of cleaning devices and is technically characterized by comprising a steel plate vehicle carrying platform, a plurality of grooves are arranged at one end of the steel plate vehicle carrying platform, and a plurality of transverse pipes are fixedly mounted on the steel plate vehicle carrying platform and positioned at the grooves. A plurality of first spray heads are fixedly mounted on each transverse pipe and located in the corresponding groove, the transverse pipes communicate with one another through a first communicating pipe, a first water pump is fixedly mounted on one side of the steel plate vehicle carrying table, and the water outlet end of the first water pump communicates with the first communicating pipe; the number of the rotating cleaning assemblies is four, the two ends, in the width direction, of the steel plate vehicle carrying table are each provided with a pair of rotating cleaning assemblies, a transmission part is arranged between the two rotating cleaning assemblies located on the same side of the steel plate vehicle carrying table, and a motor is installed on one rotating cleaning assembly located on the same side of the steel plate vehicle carrying table. The motor is fixedly installed on the steel plate vehicle carrying table, and minerals on tires can be removed more comprehensively.

The present application relates to a kind of automatic tow cable system of coal mining machine, the space in cable trough is divided into three layers by layered board assembly, the lower part of tow cable trolley and bundle cage tow rope device is located in middle layer and can only reciprocate along the length direction of cable trough, bundle cage tow rope device is fixed relative to coal mining machine, steel wire rope is threaded along the length direction of cable trough, one end of steel wire rope is wound around the fixed pulley at the head of scraper conveyor, changes direction and then connected with bundle cage tow rope device, the other end is wound around the fixed pulley at the tail, then wound around the movable pulley of tow cable trolley, changes direction again, then returns to the tail and is fixed, cable clamp plate group is connected on coal mining machine at one end, is fixed at the head at the other end, middle part is wound around the roller of tow cable trolley and passes through bundle cage along the length direction of cable trough, the relative position of head and tail can be interchanged.The present application does not need external input power, with guide, upper layer cable clamp plate group will not fall, steel wire rope will not be thrown out, and safety is good.

The application discloses a heavy truck technical field and relates to a multi-section multi-layer carriage type highway electric carrying train, which comprises a vehicle head, a plurality of installation rods with the same structure, a plurality of carriages with the same structure, hub wheels arranged on the carriages, hydraulic telescopic rods arranged at the bottom of the carriages, supporting legs arranged at the bottom of the piston rods of the hydraulic telescopic rods, connecting female parts arranged at the left ends of the carriages, connecting male parts arranged at the right ends of the carriages and the installation rods, and a connection between the installation rods. The heavy truck has at least two carriages, the multi-section carriages can be folded and stored on the first carriage under the condition of no loading, the area occupied by the heavy truck is reduced, and the heavy truck is convenient to park; when the heavy truck is loaded, the multi-section carriages are sequentially connected through the connecting female parts and the connecting male parts, the transportation capacity of the heavy truck is improved, and the problem that the heavy truck cannot meet the increasing demand for large piece transportation is solved.

Provided in the present invention are a chain tensioning device and method for a scraper conveyor dual-drive system. The chain tensioning device comprises a dual-drive head and a dual-drive tail, wherein the dual-drive head comprises a head frame, a first chain-hauled shearer driving portion, a first scraper conveyor driving portion, a first shearer driving portion coupling plate, an L-shaped coupling plate, and a first telescopic oil cylinder; and the dual-drive tail comprises a tail frame, a fixing recess, a second chain-hauled shearer driving portion, a second scraper conveyor driving portion, and a second telescopic oil cylinder. By integrating a dual-drive structure on the tail and the head, the chain-hauled shearer driving portion and the scraper conveyor driving portion are rationally arranged, thereby achieving separate tensioning adjustments of a haulage chain of a chain-hauled shearer and a scraper chain of a scraper conveyor. Moreover, the chain tensioning device for a scraper conveyor dual-drive system of the present invention is simple and convenient to operate, is flexible and reliable, greatly reduces the labor intensity of workers, reduces the workload of workers, and avoids a long downtime due to frequent shutdowns and chain cutting, thereby improving the production efficiency.

The invention provides an underground trackless transport vehicle with an electromagnetic retarding system, and belongs to the technical field of mining transport vehicles. According to the underground trackless transport vehicle, vehicle operation parameters are collected in real time to establish a dynamic state matrix, speed and acceleration change characteristics are extracted by using a sliding time window method, risk working condition points are identified and are subjected to space-time alignment with a roadway position, and the risk working condition points are determined; a dominant working condition and a disturbance working condition are separated through singular value decomposition, a Pareto optimization model is adopted to solve a braking torque reference value, then a Stackelberg game model is utilized to carry out two-layer hierarchical collaborative optimization on an electromagnetic retarding device and a hydraulic braking system, and control parameters are corrected in real time through a dynamic compensation mechanism. The technical problem that an underground trackless transport vehicle is difficult to realize collaborative optimization control of an electromagnetic retarding device and a hydraulic braking system in a complex and changeable roadway slope environment is solved.

The method may comprise determining a geometry of a stockpile based on the haulage data, engineering drawings and material characteristics; predicting, by the one or more processors using an algorithm implementing a cellular automaton, material movements within the stockpile, based on the geometry of the stockpile, physical parameters of the material movements and emergent rules for the material movements; predicting material movements exiting the stockpile, based on the material movements within the stockpile; predicting, using a concentrator transit model, the material movements across a comminution process in a concentrator, based on material movements exiting the stockpile; and optimizing mining operations based on the knowledge of the material movements through the comminution process. A determination of the material movements may include a determination of the material characteristics of the material.

The invention relates to a combined filling mining method for a steeply inclined thin vein, which comprises the following steps: S1, arranging a stope: arranging the stope along the trend of an ore body, dividing the stope into a plurality of middle sections from top to bottom along the vertical direction of the vein, dividing ore blocks through a pedestrian ventilation raise, and reserving bottom columns at the bottoms of the ore blocks; s2, mining preparation cutting is conducted, specifically, an in-vein haulage roadway is tunneled in the direction of an ore body, and then a pedestrian ventilation raise is tunneled upwards through the in-vein haulage roadway to communicate an upper middle section air return roadway with the middle section in-vein haulage roadway; excavating a undercut roadway into the ore block from the pedestrian ventilation raises on the two sides along the upper boundary of the bottom column, and upwards excavating a one-way draw shaft as a draw shaft on one side, close to the footwall of the ore body, of the middle-section in-vein haulage roadway at the central position in the length direction of the ore block; s3, stoping, ore removal and filling are conducted, specifically, rock drilling and manual charging are conducted on the first layer from the undercut roadway, and the second layer is circularly stoped; and then filling in a filling step-by-step manner. The mining efficiency can be improved, and the labor intensity of workers can be relieved.

The invention discloses an underground coal transport vehicle, and belongs to the technical field of coal transport devices, the underground coal transport vehicle comprises a vehicle frame main body and a vehicle head suspension plate, the outer side of the top end of the vehicle head suspension plate is provided with a guardrail assembly, and the top end of the vehicle head suspension plate is provided with a cockpit side protection assembly; a storage assembly and an anti-seismic supporting assembly are arranged at the position, located in the cab side protection assembly, of the top of the vehicle head suspension plate, and a throwing hole is formed in the top of the vehicle head suspension plate. Through cooperative arrangement of the trigger trapezoidal columns and the limiting clamping tongues, when the cockpit top plate is impacted by collapse objects, serious deformation of the cockpit top plate can be prevented through the anti-seismic buffer springs, meanwhile, resonance caused by impact of the collapse objects is weakened, and when the collapse objects cause deformation of the cockpit top plate, the limiting clamping tongues can be pressed downwards through the trigger trapezoidal columns, so that the collapse objects are prevented from collapsing. The seat bearing platform is put into the escape bin formed in the platform enclosure, and a driver can obtain escape materials in the material storage cabinet by opening the cabinet body closing plate and escape in time by opening the escape protection plate.

The invention discloses a strip mine block section stripping transportation route optimization method. The method comprises the following steps: acquiring basic data of a strip mine transportation system; based on the basic data, establishing a block stripping transportation route optimization model which takes the execution state of a truck on each loading and unloading path as a decision variable and takes maximization of the total transportation volume of the system as a target; a mathematical optimization solver is utilized to solve the block stripping transportation route optimization model, and a route distribution scheme of each truck in each transportation trip is generated; and commanding a truck to carry out transportation operation along the optimal path according to the path distribution scheme. According to the method, the detailed driving path and multiple transportation arrangements of each truck in the specific working time can be clearly generated, the performability of the path scheme and the guidance value for actual production are remarkably improved, and the overall efficiency of the strip mine transportation system is effectively improved.

The invention discloses a real-time detection system and method for derailment of a coal mine rail transport vehicle, and relates to the technical field of fault prediction and intelligent diagnosis of transport equipment. The real-time detection system comprises an intelligent traction analysis terminal, a mine car attitude sensing node and a ground monitoring center, and the intelligent traction analysis terminal is fixedly installed in an electric locomotive cab or an electric control cabinet; the mine car attitude sensing node is fixedly mounted at a position capable of sensitively reflecting the attitude of a car body; the intelligent traction analysis terminal comprises an electrical parameter acquisition module, an RFID card reader, an edge intelligent calculation unit, a wireless communication module and a positioning and timing module, the electrical parameter acquisition module and the RFID card reader are respectively connected with the edge intelligent calculation unit through network cables, and the RFID card reader is connected with the mine car attitude sensing node through a UHF wireless communication link; according to the method, the electrical parameters are analyzed through the improved isolated forest algorithm, and the early electrical symptoms before the derailment can be identified in combination with the characteristic engineering optimized for the working condition of the coal mine, so that the false alarm rate is reduced to be lt; 2%, the missing report rate is lt; and 0.5%.

The utility model belongs to the technical field of roadway protection, and particularly relates to an anti-impact buffering device for a haulage roadway, which comprises a buffering support and a buffering support, the buffering support comprises a base, a buffering support plate, a buffer and a through hole, the left end of the base is hinged with the buffering support plate, the buffer is hinged between the buffering support plate and the base, and the buffering support is connected with the buffering support. A plurality of through holes are formed in the buffer supporting plate; the buffer support is connected to the through hole and comprises a movable plate, an insertion rod and a buffer spring, the insertion rod inserted into the through hole is arranged on the right side wall of the movable plate, the buffer spring is arranged outside the insertion rod and located between the movable plate and the buffer supporting plate, and primary buffer supporting is provided through the buffer spring; after being pressed, the buffer supporting plate rotates on the base, the buffer supporting plate is supported through the buffer, secondary buffer supporting is provided, and the buffer effect is improved.

The application provides a steel carrying vehicle identification system and method, which comprises a scene acquisition module, a topological interconnection module, a vehicle identification module and a vehicle discrimination module; the scene acquisition module is used for setting a recycled steel automatic grading area, collecting vehicle pictures in the area and transmitting the pictures to the topological interconnection module; the topological interconnection module is used for connecting each scene acquisition module through a fiber switch and a fiber cable and transmitting the vehicle pictures collected by the scene acquisition module to a host computer; the vehicle identification module is used for calling the vehicle pictures stored in the host computer, extracting feature points in the vehicle pictures through a convolutional neural network and judging whether a carrying vehicle exists in the automatic grading area; and the vehicle discrimination module is used for extracting the vehicle pictures stored in the host computer when the carrying vehicle is identified, collecting and analyzing suspended license plate information through an image enhancement technology, obtaining a discrimination result and transmitting the result to the host computer. The application adopts the vehicle identification module to analyze the collected pictures, adopts the vehicle discrimination module to lock the carrying vehicle and realizes automatic identification of the carrying vehicle entering and leaving a warehouse.

The present application relates to a kind of coal mine floor failure zone development height real-time measurement method, between working face haulage roadway and air return roadway, excavate two groups of V-type symmetrical boreholes, the symmetry axis of two groups of V-type symmetrical boreholes is respectively perpendicular to working face advancing direction, parallel;Distributed sensing optical cable is worn into V-type symmetrical borehole, and the strain distribution data of distributed sensing optical cable in V-type symmetrical borehole is collected in real time;Based on the interface of failure zone is distinguished according to strain distribution characteristics, and the development height of floor failure zone is dynamically output;V-type symmetrical borehole structure makes fiber form cross monitoring network in floor profile, and two-way strain information can be obtained at the same depth, solve the problem that vertical single hole cannot accurately distinguish the interface of failure zone and guide uplift zone.It is continuous strain monitoring in the length range of whole borehole by distributed optical fiber, can capture the whole process dynamic evolution of floor failure zone development, overcome the defect that traditional method can only intermittent measurement.

This invention provides a box-type shovel and haulage system for underground tunnel repair. The box-type bucket includes a top plate, a bottom plate, a left side plate, and a right side plate. The connecting main frame also includes a top plate, a bottom plate, a left side plate, and a right side plate. The top plate of the box-type bucket and the top plate of the connecting main frame are rotatably connected via a rotating shaft, as are the bottom plate of the box-type bucket and the bottom plate of the connecting main frame. Left and right swing cylinders are symmetrically arranged on the left and right sides of the rotating shaft, with their ends rotatably connected to the box-type bucket and the connecting main frame, respectively. The unloading plate is located inside the box-type bucket, with its upper, lower, left, and right edges slidably connected to the top, bottom, left, and right sides of the box-type bucket, respectively. The two ends of the unloading cylinder are connected to the connecting main frame and the unloading plate, respectively. This box-type shovel and haulage system effectively solves the problems of limited space during corner construction and unloading difficulties in narrow underground coal mine tunnels.

The utility model relates to underground hydraulic support quick removal technical field discloses a kind of guiding haulage device for underground hydraulic support quick removal, including guide rail, the guide rail inside is provided with guide slot, the guide rail top is slidably connected with sliding plate, the sliding plate lateral wall is rotatably connected with pulley, the pulley is slidably connected in the guide slot inside, the sliding plate top is provided with hydraulic support, the hydraulic support lateral wall is fixedly connected with tow ring pole, the sliding plate lateral wall is fixedly connected with connecting plate, the connecting plate is slidably connected in the guide rail top, the guide rail top is provided with multiple limit grooves. In the utility model, the pulley of the sliding plate lateral wall is driven along guide slot by the guide slot inside guide rail, so as to reach the effect that hydraulic support is quickly removed, solve the problem that hydraulic support moves difficultly, positioning is not accurate due to narrow underground space, improve the efficiency and stability of removal process.

The utility model discloses an improved inclined shaft skip bucket traction frame copper bush, a barrel body is of a split structure and comprises a left half barrel body and a right half barrel body, and one end of each half barrel body is provided with a half outer flanging integrally formed with the half barrel body. After installation, the pair of half cylinder bodies is folded to form a whole cylinder, the half outer turnups of the pair of half cylinder bodies are folded to form a circle of complete outer turnup, and the axis of the cylinder is perpendicular to the plane where the half outer turnups are located. And at least one threaded through hole for disassembly with the axis parallel to the axis of the cylinder is formed in each half outer flange. The copper sleeve can be conveniently taken out from a rotary shaft hole of the traction frame, and convenient replacement of the copper sleeve is achieved; load bearing position change of the copper sleeve can be achieved, and the service life of the copper sleeve is prolonged.

The present application relates to a kind of chain haulage coal mining machine towrope system simulation test device, wherein first, second slider respectively with first, second linear guide sliding fit, coal mining machine simulation model and towrope trolley simulation model are respectively fixed on first, second slider, the output shaft of first variable frequency motor and first vertical bearing seat each coaxially installed with first sprocket, first chain is wound on first sprocket and forms chain transmission with it, the output shaft of second variable frequency motor and second vertical bearing seat each coaxially installed with second sprocket, second chain is wound on second sprocket and forms chain transmission with it, first, second chain is respectively fixedly connected with coal mining machine simulation model and towrope trolley simulation model, towrope simulation model is arranged in U shape after passing through the pulley on towrope trolley simulation model, one end is fixed on coal mining machine simulation model, the other end is relative to the one end of first linear guide fixed.The present application can provide theoretical basis and design reference for chain haulage coal mining machine towrope system design.

An agricultural system includes a material transfer vehicle configured to receive material from a harvester and to transfer the material to a haulage vehicle, a material conveyance subsystem configured to convey the material from the material transfer vehicle to the haulage vehicle, at least one processor, and memory storing instructions executable by the at least one processor. The instructions, when executed, cause the agricultural system to access a representation of a haulage vehicle internal geometry corresponding to the haulage vehicle, and control the material conveyance subsystem to transfer the material from the material transfer vehicle to the haulage vehicle based on the representation of the haulage vehicle internal geometry.

The present application belongs to the technical field of tunnel construction equipment, and particularly relates to a horizontal transport vehicle slipping treatment system and method, which comprises a driven wheel speed sensor, a main drive wheel speed sensor, a frequency converter, a whole vehicle controller and an intermediate relay; the driven wheel speed sensor is fixedly installed on the axis of the driven wheel, and the driven wheel speed sensor is connected with the whole vehicle controller; the main drive wheel speed sensor is fixedly installed on the tail of the main drive wheel motor, and the main drive wheel speed sensor is connected with the frequency converter, and the frequency converter is connected with the whole vehicle controller; the whole vehicle controller is connected with the main coil of the intermediate relay in control mode, and the contact of the intermediate relay is connected with the safe torque off terminal of the frequency converter. The present application can slow down the horizontal transport vehicle to a safe parking state without using a rail hooking device when the horizontal transport vehicle slips, so as to avoid damage to the rail.

The invention relates to the technical field of coal mine underground safety transportation, and discloses a coal mine underground transportation device which comprises a frame, at least two moving assemblies are oppositely arranged on the surface of the frame, a loading mechanism is arranged on the surface of the frame, and the loading mechanism comprises a loading box in threaded connection with the surface of the frame. Arc-shaped sliding grooves are oppositely formed in the loading box, a swing assembly is arranged in the loading box, a limiting assembly is fixedly connected to the side, away from the arc-shaped sliding grooves, of the interior of the loading box, and a driving assembly is arranged on the surface of the loading box. The air cylinder drives the arc-shaped platform to enable the cargoes to move along a preset track, the cargoes are conveniently shoveled, when the cargoes enter the arc-shaped platform, the cargoes slowly fall down along the arc-shaped slope under the guidance of gravity and the lowest face of the u-shaped platform, and damage to electrical components caused by impact in the carrying process is reduced.

The utility model discloses a coal mine cable traction mechanism, which relates to the field of mine cable traction, and comprises a single hanger rail assembly, a hydraulic stepping assembly arranged on the single hanger rail assembly, a cable bracket assembly arranged behind the hydraulic stepping assembly, and a guide ring structure arranged on the left and right of the lower end of the bracket structure, the guide ring structure comprises a fixed supporting block, a lifting frame is slidably connected to the middle of the fixed supporting block, two arc-shaped plates are fixed to the front portion and the rear portion of the fixed supporting block, the lifting frame is provided with another arc-shaped plate, the arc-shaped plate is movably connected with one end of the fixed supporting block, and the other end of the fixed supporting block is hinged to the arc-shaped plate. And a position adjusting screw rod is mounted between the lifting frame and the fixed supporting block. The cable bracket has the beneficial effects that the upper arc-shaped plate and the lower arc-shaped plate are arranged, and the upper arc-shaped plate can be opened and closed, so that a cable can be conveniently put on the cable bracket assembly, and then the lifting frame drives the upper arc-shaped plate to move, so that cables with different diameters can be clamped.

This invention relates to the field of power pipeline construction and underground target positioning technology, and particularly to a trenchless power pipeline laying device and positioning method. It includes: deploying a ground reference coil array and establishing a ground coordinate benchmark; installing a positioning probe assembly on a haulage head and connecting it to the power pipeline; mutual calibration by applying calibration excitation and collecting calibration responses to obtain a calibration parameter set; applying positioning excitation and collecting electromagnetic / inertial / mileage / tension data during the positioning phase; constructing an electromagnetic feature vector and obtaining electromagnetic positioning results; obtaining inertial mileage positioning results based on inertia and mileage; optimizing and outputting fused positioning results via a sliding window and outputting deviation prompts / control commands, recording positioning quality indicators; wherein cable laying and retrieval can draw inspiration from shipboard hydrological and geological survey winches, and connection reliability can draw inspiration from deep-sea general-purpose materials and connectors and other auxiliary equipment. This invention suppresses cumulative errors through ground coil excitation and multi-source fusion correction.

The application discloses a kind of lower coal seam roadway surrounding rock pre-reinforcement methods of ultra-close distance coal seam mining, comprising: step 1, field investigation, obtain the basic profile of upper coal seam mining face and coal rock occurrence characteristics, then determine the position of lower coal seam face return airway and lower coal seam face haulage roadway, then analyze the influence of floor failure depth of upper coal seam mining face on the stability of surrounding rock of lower coal seam face return airway and lower coal seam face haulage roadway during mining;Step 2, based on the analysis result of step 1, formulate the pre-grouting reinforcement scheme of lower coal seam face return airway and lower coal seam face haulage roadway;Step 3, according to the pre-grouting reinforcement scheme formulated in step 2, after grouting, monitor the deformation of roadway surrounding rock during the use of lower coal seam face return airway and lower coal seam face haulage roadway, and then test the grouting effect according to the monitoring result.

The invention relates to the technical field of coal mining of fully mechanized coal mining faces, in particular to a method for advanced reinforcement of a fault fracture zone of a directional high-pressure guniting fully mechanized coal mining face. Comprising the steps that in an exploiting, preparing or stoping roadway, the first extending direction of a fault fracture zone is determined between a transportation roadway and an air return roadway, and a first drill hole and a second drill hole penetrating through the fault fracture zone are formed in the positions, located at the fault fracture zone, of a roadway top plate and a roadway bottom plate through construction in the first extending direction by adopting a drilling machine; drilling is withdrawn in the first drill hole, and fixed jet grouting reinforcement is carried out to form a top plate reinforced plate-shaped structure layer; the drilling in the second drill hole is withdrawn, and fixed jet grouting reinforcement is carried out to form a bottom plate reinforced platy structure layer; the top plate reinforcing plate-shaped structure layer and the bottom plate reinforcing plate-shaped structure layer are both used for separating a fault fracture zone in the designed tunneling direction of the fully mechanized coal mining face. Therefore, the problems of roof collapse and collapse of the fully mechanized coal mining face fault fracture zone and bottom sinking of the support are solved.

The invention belongs to the technical field of coal mine green mining and CO2 geological storage, and particularly relates to a deep well strip structure type paste filling physicochemical collaborative carbon dioxide storage method which comprises the following steps: constructing a transportation gate road, an air return gate road and an air return channel for communicating the transportation gate road and the air return gate road on a coal face, and dividing the coal face into an even number of equal-width strips; the multiple paste filling strips are constructed in sequence, and filling bodies are used for filling; the second carbon sequestration strip is constructed so that the second carbon sequestration strip can be communicated with the conveying gate road and the air return gate road, and then an air return channel is closed; and the remaining carbon sequestration strips are sequentially constructed and sealed, and CO2 is injected for sequestration after sealing treatment is completed. According to the method, strip mining, paste filling and the CO2 storage process are coordinated, the coal-based solid waste is consumed, the CO2 storage capacity and safety are improved, and the technical problems that the traditional storage amount is small and leakage is prone to occurring are effectively solved.

A Z-shaped opposing mining method for gently dipping thin ore bodies is disclosed, relating to the mining field. The method includes the following steps: dividing the gently dipping thin ore body into different stages based on stage haulage roadways; arranging mining areas along the strike of the ore body in each stage; pre-stopes between each mining area, with the stope thickness consistent with the stage thickness; excavating and cutting an uphill section from the stage haulage roadway, connecting the stage haulage roadway with the previous stage haulage roadway; the uphill section is arranged in a pseudo-dipping manner and perpendicular to the stope dip direction; excavating and filling a return air shaft to connect to the surface; during mining, alternately mining the stope portion located at the bottom end and the stope portion located at the top end of the uphill section; cementing and filling each stope; and then mining the pillars within the mining area and cementing and filling them. The Z-shaped opposing mining method for gently dipping thin ore bodies has the advantages of low pre-cutting workload per mining area, high production efficiency and ore recovery rate, and wide applicability to a wide range of ore body dip angles.

The present application belongs to the field of phosphorite deposit mining technology, and particularly relates to a steeply inclined interlayer thick and very thick phosphorite sublevel filling mining method. The present application divides two ore layers into several sublevels in height and several corresponding ore rooms in strike. In each sublevel and ore room, a b ore layer floor haulage roadway, an a ore layer cross vein, an a ore layer cutting roadway, a b ore layer cutting roadway are constructed, and the b ore layer floor haulage roadway is used as the main haulage roadway. Upward mining and filling are adopted, the a ore layer is mined first, and the b ore layer is mined with a lag of two or more sublevels, and the b ore layer floor haulage roadway is used as the b ore layer drilling roadway. Thus, the total roadway construction workload, the rock roadway construction workload can be reduced, and the mining efficiency is provided. The present application can reduce the mining, filling and ventilation interference of two ore layers by lagging the b ore layer mining and filling by at least two sublevels of the a ore layer. The present application cooperatively plans and safely and efficiently mines the thick and very thick ore layers on both sides, and realizes high yield and high efficiency.

The invention provides a mine transportation device with a replaceable battery box and a battery replacement method. The walking assemblies are arranged on the two sides of the bottom of the vehicle body and used for driving the vehicle body to move; the battery replacing assembly is arranged at the bottom of the vehicle body and located between the walking assemblies; the battery replacing assembly comprises a first driving piece, a guide plate and a locking piece; the guide plate is located between the walking assemblies, and the first driving piece is arranged on the vehicle body, connected with the guide plate and used for driving the guide plate to ascend and descend so as to achieve replacement of the battery box; the locking piece is arranged on the guide plate and is used for fixing the battery box on the guide plate after the battery box is replaced in place; compared with the prior art, the device has the following beneficial effects that through the arrangement of the battery replacement assembly, long-time shutdown charging is not needed, energy supplementation can be completed only by rapidly replacing the battery box, the shutdown time of equipment is greatly shortened, the replacement efficiency of the battery box is improved, and the underground material transportation efficiency is improved.