623results about "Earth drilling and mining" 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 method may include: providing one or more inputs to a hybrid data generator, wherein one of the one or more inputs is based at least in part on a wellsite location, wherein the hybrid data generator comprises a large language model, and wherein the large language model is based at least in part on a machine learning algorithm; utilizing an information handling system to generate a cement job design based at least in part on the one or more inputs and the hybrid data generator; performing at least a portion of a cementing operation based at least in part on the cement job design; and collecting at least one measurement from at least one sensor during the cementing operation.

A wellbore temperature optimization and predication method integrating numerical models and machine learning includes the following steps: establishing a wellbore-formation transient heat transfer model, obtaining an initial data set composed of relevant parameters, normalizing the initial data set, training a wellbore temperature prediction model by using a random forest algorithm, then optimizing the hyperparameters of the random forest algorithm by using a genetic algorithm, performing global optimization by using an annealing algorithm to obtain the optimized wellbore temperature and related parameters, calculating the wellbore temperature by substituting the optimized parameters into the wellbore-formation transient heat transfer model, and performing comparative verification on the optimized wellbore temperature and the calculated wellbore temperature.

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.

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 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 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 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.

A representation of a rock capillary network is obtained and initial and boundary conditions of fluid flow and mineral precipitation process simulations for the rock capillary network are set. One or more instances of a geometry evolution simulation are performed, each geometry evolution simulation comprising obtaining fluid flow vectors for the rock capillary network, identifying one or more hotspots of nucleation in the rock capillary network, starting a mineral precipitation analysis and estimating a mineral accumulation over a given time interval for at least the identified hotspots of nucleation, adjusting a pore geometry to an effect of mineral precipitation for the rock capillary network, and iteratively repeating each of the one or more geometry evolution simulations until corresponding stop criteria are met for each geometry evolution simulation. A resulting rock under analysis property is computed from an aggregate of results of the one or more geometry evolution simulations.

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.

A system, for controlling well site operations, comprising a machine learning engine, a predictive engine, a node system stack, and a blockchain. The learning engine includes a machine learning algorithm, an algorithmically generated earth model, and control variables. The learning algorithm generates a trained data model using the algorithmically generated earth model. The predictive engine includes an Artificial Intelligence (AI) algorithm. The AI algorithm generates a trained AI algorithm using the trained data model and earth model variables using the trained AI algorithm. The system stack is communicable coupled to the predictive engine, the learning engine, the blockchain, sensors, and a machine controller. The blockchain having a genesis block and a plurality of subsequent blocks. Each subsequent block comprising a well site entry and a hash of a previous entry. The well site entry comprises transacted operation control variables. The transacted variables are based on the generated earth model variables.

A method and apparatus for evaluating light-weight cement (LWC) bond conditions in production well in presence or absence of the tubing. The apparatus includes a tool string that can be lowered into the casing or the tubing. The tool string includes a segmented transducer ring matrix to excite the surrounding medium resulting in vibrations. The tool string further includes an impedance measurement circuit that can determine natural resonance frequencies of the structural components. The impedance measurement circuit can determine certain non-harmonic resonance mode shapes for mechanical impedance measurements that are sensitive to the LWC bond conditions. A machine learning model can be used for segmented impedance measurements to correct effects from the tubing eccentricity inside the casing. Lab calibration generates bond index mapping table and the field logging impedance measurement data can be processed into the bond indexes to further evaluate LWC bond conditions.

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.

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.

The invention relates to the technical field of mine safety equipment, in particular to a stall protection device for a mine trackless rubber-tyred vehicle, which comprises a left stand column and a right stand column, a left fence is arranged on the left stand column, a right fence is arranged on the right stand column, a left cylinder is fixed in the middle of the left stand column, and a right cylinder is fixed in the middle of the right stand column. A U-shaped steel pipe is inserted into every two steel pipes of the left fence and the right fence, the U-shaped ends of the U-shaped steel pipes are located outside the fences, the two ends of the U-shaped steel pipes are fixed in the steel pipes of the fences and connected with steel wire ropes, and the tail ends of the steel wire ropes are connected with dampers on the roadway ground after the steel wire ropes penetrate out of the fences. The lock hooks can hook the U-shaped steel pipes on the left fence and the right fence. When the mine trackless rubber-tyred vehicle stalls, the mine trackless rubber-tyred vehicle collides with the intercepting nets on the left fence and the right fence, the intercepting nets are separated from the left fence and the right fence under the collision condition, and the stalled mine trackless rubber-tyred vehicle is stopped under the action of the damper.

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.

The invention discloses a CNN-LSTM fused geothermal exploitation productivity optimization prediction system, which belongs to the technical field of geothermal productivity prediction, and comprises the following process modules: S1, data acquisition; s1-1, geological exploration equipment; s1-2, geothermal well monitoring equipment is used; s1-3, monitoring equipment of the heating system; s2, data preprocessing; s2-1, a missing value processing unit; s2-2, an abnormal value detection unit; s2-3, carrying out unit normalization; s3, a feature screening module; s3-1, a correlation analysis unit; and S4, a model construction module. The CNN-LSTM fused geothermal exploitation productivity optimization prediction system not only can realize comprehensive data coverage so that the model can accurately capture dynamic changes of a geothermal system, but also can reduce redundant variables through feature screening so as to realize accurate prediction, dynamic optimization and intelligent regulation and control of geothermal exploitation productivity; high-precision, high-efficiency and high-adaptability technical support is provided for scientific development of geothermal energy, and the geothermal energy is promoted to advance towards the predictable, controllable and sustainable direction.

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.

The invention relates to the technical field of coal mine mechanical equipment, in particular to a scraper conveyor middle trough suitable for a large-mining-height and large-transportation-volume environment, and the scraper conveyor middle trough suitable for the large-mining-height and large-transportation-volume environment is provided with a trough body assembly. The groove body assembly comprises a baffle groove side, a shovel plate groove side, a supporting plate, a bottom sealing plate, a first replacement plate and a second replacement plate, the two ends of the supporting plate are fixedly connected with the baffle groove side and the shovel plate groove side respectively, the bottom sealing plate is located below the supporting plate, and the two ends of the bottom sealing plate are fixedly connected with the baffle groove side and the shovel plate groove side respectively. The two ends of the first replacement plate are detachably installed on the baffle ledge and the supporting plate respectively, and the two ends of the second replacement plate are detachably installed on the shovel plate ledge and the supporting plate respectively. Thus, when the middle plate of the middle trough is abraded, only the first replacement plate or the second replacement plate needs to be detached, then a new first replacement plate or second replacement plate needs to be replaced, the middle plate of the middle trough can be replaced without welding, and the replacement efficiency of the middle plate of the middle trough is improved.

Disclosed herein is a workflow for evaluating the cement between a casing string and the surrounding formation in a wellbore and for determining casing string eccentricity using sector cement bond log (CBL) data. This method involved using a cement bond logging tool with an extended acquisition time window to capture multiple interface echoes. From this sector CBL data, a data matrix of waveform information is generated, with each row representing waveform data from different azimuthal sectors. Through singular value decomposition, the principal components of the matrix are identified. Subsequent component analysis emphasizes significant components of waveforms. The significant waveform components are then used to model waveforms using local cluster modeling. The method proceeds by analyzing decomposed data to pinpoint cement zones, compute an eccentricity index for casing deviation, and detect cement channels.

A system for managing well site operations comprising a well site operations module, a chain of blocks of a distributed network, and a sensor bank and control module. The operations module generates earth model variables using a physics model, well log variables or seismic variables, or both, and a trained AI / ML algorithmic model. The chain of blocks comprises a plurality of subsequent blocks. Each subsequent block comprises a well site entry and a hash value of a previous well site entry. A well site entry comprises transacted operation control variables. The well site operations module generates production operation control variables or development operation control variables from earth model variables. The well site entry can also include transacted earth model variables and sensor variables. The sensor bank and control module provides well log variables and the operations module couples control variables to the control module to control well site equipment.

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.

The invention relates to the technical field of coal cars, in particular to an underground coal car. The underground coal car comprises a front car frame, a rear car frame, a first driving assembly, a second driving assembly and a battery assembly, wherein the front car frame is provided with a cab; the rear frame is movably connected with the front frame; a container is arranged on the rear frame; the first driving assembly is located on the front frame and comprises a first driving wheel and a wheel edge driving assembly, and the wheel edge driving assembly is used for driving the first driving wheel to rotate; the second driving assembly is located on the rear frame and comprises a second driving wheel and a hydraulic auxiliary driving system, and the hydraulic auxiliary driving system is used for driving the second driving wheel to rotate; the battery assembly is installed on the front frame and used for providing power for the first driving assembly. The underground coal car provided by the invention can completely replace a shuttle car, and can freely pass underground under the condition of getting rid of the limitation of a cable, so that the operation efficiency of the underground coal car is improved, and the production efficiency of an underground room-pillar type coal mine is further greatly improved.

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.

The utility model relates to the technical field of self-moving machine tails, in particular to a self-moving machine tail for a belt conveyor, which comprises a machine frame, two guide rails and an electric driving execution system, the electric driving execution system comprises a bottom lifting electric cylinder, a pushing electric cylinder, a leveling electric cylinder and an explosion-proof electric cabinet, and the explosion-proof electric cabinet controls the pushing electric cylinder to push the machine frame to advance or retreat; the explosion-proof electric cabinet controls the bottom lifting electric cylinder to enable the guide rail and the rack to lift relatively; the explosion-proof electric control box controls the leveling electric cylinder to adjust the transverse movement of the rack, so that the full-electric driving execution system is adopted to achieve lifting, front-back movement and transverse movement of the rack, the response speed of the rack is effectively increased, the levelness of the rack can be adjusted, and the problems of liquid leakage, oil seal replacement and the like caused by a hydraulic system do not need to be considered; and the low-cost maintenance effect of reducing maintenance or not needing maintenance is achieved.

An arrangement for attaching a falling post on a base structure, the post being rotatably movable between a standing and a recumbent position. The arrangement includes a stand, wherein the post is attached pivotally to the stand by a pin. The stand includes at least one groove arranged laterally in respect to the post, and the post has at least one projection extending in a lateral direction from the post. The at least one groove is arranged with respect to the at least one projection such that when the stand is in the standing position, the at least one projection lies in the at least one groove, and thereby locks the post in the standing position. The at least one projection is attached to the post such that it may move with respect to the stand in a longitudinal direction of the post.

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.

Techniques for measuring well systems using tube waves may include performing a simulation of a stage of the well system based, at least in part, on stage design characteristics. The techniques may further include determining expected stage characteristics based, at least in part, the simulation. The techniques may further include generating measured stage characteristics based, at least in part, on a tube wave signal corresponding to a tube wave that occurred in the well system. The techniques may further include determining at least one stage efficiency metric based, at least in part, on the expected stage characteristics and the measured stage characteristics.

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.