70 results about "Salt mine" patented technology

The invention discloses a salt mine sediment void petroleum and brine migration simulation and parameter optimization evaluation method, which comprises the following steps: obtaining physical characteristic parameters of salt mine sediment, petroleum and brine, the sediment parameters at least comprising void ratio and pore connectivity obtained through CT scanning; calculating an evaluation index based on a simulation result, and performing quantitative evaluation and feasibility screening on the migration process; if the optimal potential exists, parameter optimization and scheme iteration are further executed, and a simulation-evaluation-optimization closed loop is formed; and finally, checking the model through field test data. The method solves the problem that in the prior art, no means for simulating and evaluating the two-phase migration of the petroleum brine in the salt mine sediment gaps exist, the process can be quantitatively simulated, evaluated and optimized, and scientific, accurate and systematic technical support is provided for petroleum storage through the high-impurity salt mine sediment gaps.

The invention relates to a hydraulic support base for potassic salt ore. The hydraulic support base comprises a first base body, a second base body, a gap bridge plate, a first connecting pin and a second connecting pin. Strip-shaped holes extending in the vertical direction are formed in the two ends of the gap bridge plate; a first lug plate is arranged on the inner side of the first base, and a second lug plate is correspondingly arranged on the inner side of the second base; the long-strip-shaped holes in the two ends of the gap bridge plate are hinged to the first lug plate and the second lug plate through a first connecting pin and a second connecting pin respectively. The axial directions of the first connecting pin and the second connecting pin are front and back directions; the first connecting pin and the second connecting pin can slide along the long-strip-shaped hole, dislocation of the first base and the second base is achieved, and therefore the support can cope with potassic salt ore bottom plates of different forms, and the support has the advantages that local suspension or stress concentration caused by unevenness of the potassic salt ore bottom plates can be effectively avoided, and the stability of the support under the potassic salt ore complex terrain is maintained. And the position of the base can be flexibly adjusted according to site ground conditions, installation is rapidly completed, and the installation time is greatly shortened.

The utility model relates to the technical field of salt mine drilling accessories, concretely to salt mine drilling water solution mining anti -blocking water injection head, including the water injection pipe head of salt mine drilling water solution mining, the top end coaxial of water injection pipe head is provided with the connecting socket, the bottom coaxial of water injection pipe head is installed with the water injection end, the utility model discloses the water injection pipe head and the water injection cavity that sets up inside it are set up, cooperate the anti -blocking water injection inner tube of embedding in the bottom of water injection pipe head and the spiral feeding rod of installing in the anti -blocking water injection inner tube, make when salt mine drilling water solution mining, the deceleration motor can drive spiral feeding rod to rotate continuously in the anti -blocking water injection inner tube, effectively prevent solid particles or impurities from accumulating and blocking at the water injection end when salt mine drilling, the water inlet hole of anti -blocking water injection inner tube outer wall opening guarantees the water in water injection cavity can smoothly enter anti -blocking water injection inner tube and transport to the water injection end, and the connecting socket of water injection pipe head top end coaxial setting is convenient for with external water injection equipment stable connection.

The application discloses a kind of high-salt mine water processing device and processing method, belong to high-salt mine water processing technical field, to solve at least one of the problems, such as huge energy, infrastructure complexity, unable batch processing wastewater in prior art high-salt mine water processing.The application, processing device, including anode flow electrode tank, cathode flow electrode tank, high-salt mine water tank, clean water tank and flow electrode capacitive deionization component;Flow electrode capacitive deionization component includes anode side current collector plate, cation exchange membrane, processing liquid cavity plate, anion exchange membrane and cathode side current collector plate in turn, anode flow electrode tank and anode side current collector plate are communicated to constitute anode flow electrode circulation loop, cathode flow electrode tank and cathode side current collector plate are communicated to constitute cathode flow electrode circulation loop, high-salt mine water tank, processing liquid cavity plate and clean water tank are communicated in turn to constitute high-salt mine water and clean water circulation loop.The application can be used for the processing of high-salt mine water.

The invention discloses a dust falling method and system for underground stoping of a solid potassium salt mine, and belongs to the field of mine dust prevention and control. According to the method, the dissolving characteristic of the sylvite ore is creatively utilized, a sylvite saturated viscous solution is used as a dust fall medium, dust is inhibited in the whole process through a three-stage cooperative system of pre-wetting, wrapping spraying and air flow purification, a medium cyclic regeneration system is established, and zero discharge of dust fall wastewater and sylvite resource recovery are achieved. The system comprises a PSVS preparation and adjustment subsystem, a three-stage dust fall execution subsystem, a perception and control subsystem and a resource recycling subsystem, and an intelligent decision center of the system executes a cooperative control algorithm based on dust distribution prediction to realize prospective precise dust fall. The method fundamentally solves the problems of low efficiency, resource waste and environmental pollution of traditional clean water dust falling and potassium salt mine dust dissolution, and has the comprehensive benefits of high efficiency, safety, environmental protection and recycling.

The application discloses a construction method for rapid excavation of a potassium salt mine, and comprises the following steps: excavation branch roadway planning, excavation preparation of a first area, excavation of the first area, excavation preparation of a second area, excavation of the second area, excavation preparation of a third area, excavation of the third area, and after the completion of the excavation operation, repeating the above steps to move to the next excavation face for excavation. The application solves the problems of discontinuous post-excavation transportation, difficult and long period of moving and inverting the face, realizes rapid excavation of the roadway, rapid transportation of materials and rapid moving of equipment, and improves the excavation efficiency of the whole mining area.

The application provides a thermal infrared hyperspectral characteristic wave band selection method based on an improved particle swarm algorithm, and comprises the following steps: step 1, preparing a mixed salt ore sample, collecting a hyperspectral emissivity spectrum of the mixed salt ore sample, measuring the mass content percentage of each mixed salt mineral in the mixed salt ore sample as a data set for selecting a characteristic wave band and predicting a content; step 2, taking the data set in step 1 as input, and establishing a prediction model of a characteristic wave band combination of each substance in the mixed salt ore and corresponding content prediction based on the improved particle swarm algorithm; step 3, based on the prediction model in step 2, predicting the characteristic wave band combination of each substance in the unknown mixed salt ore and the corresponding content, collecting the content percentage of the mixed salt ore and verifying the result. The improved particle swarm algorithm does not need to artificially adjust the parameters of the algorithm, and the obtained wave band combination prediction result is stable.

The invention relates to a potassium salt mine hydraulic support and a production process method thereof, and the production method comprises the following steps: S1, cutting and blanking steel, and carrying out groove processing to obtain a base body structural part and structural accessories; s2, the base body structural part is assembled and welded to obtain a structural prototype; s3, the structure accessories are installed in sequence, and a semi-finished product is obtained; and S4, the semi-finished product is subjected to thermal aging treatment, overall machining and surface anti-corrosion treatment, and a structural part is obtained and further assembled to form the hydraulic support. And in the steps S2-S3, after welding is completed, laser micro-textured surface treatment and surface passivation treatment are conducted on a weld joint area, and then a formed micro-textured structure is filled with corrosion inhibition coating. The technical problems that in an existing production technology, structural internal stress and deformation control of a hydraulic support are insufficient, and weak areas such as welding seams are prone to early corrosion, so that the bearing capacity of the hydraulic support is reduced rapidly in high-chlorine, high-humidity and high-ground-pressure environments such as sylvite ores, and the overall service life is short can be solved.

The application relates to a method for discharging brine by using salt mine old cavity residues, which comprises the following steps: S1, performing a sonar cavity measurement operation on the salt mine old cavity to obtain the shape of the salt mine old cavity; S2, determining the salt cavity boundary of the salt mine old cavity according to the obtained shape of the salt mine old cavity, and taking the position, which is horizontally away from the outermost end of the salt cavity boundary by a first preset distance, as the wellhead position of the brine discharge well; drilling the brine discharge well guide hole at the wellhead position of the brine discharge well, and the drilling depth satisfies at least a second preset distance below the insoluble residue in the salt mine old cavity; S3, after the brine discharge well guide hole is completely drilled, the distance between the brine discharge well guide hole and the outermost end of the salt cavity boundary is determined; S4, the distance between the brine discharge well guide hole and the outermost end of the salt cavity boundary is used to determine the build-up point position in the brine discharge well guide hole; S5, the guide hole section below the build-up point position is blocked to form a guide hole blocking section; and S6, starting the construction at the build-up point position to make the brine discharge well guide hole communicate with the insoluble residue in the salt mine old cavity.

The invention relates to a hydraulic support structural member anti-corrosion treatment method suitable for potassic salt ore, which comprises the following steps: S1, pretreatment; s2, loading an oxide ceramic precursor on the clean structural member, and heating and decomposing to form a compact barrier layer to obtain a primary structural member; the resistivity of the barrier layer is in the range of 1 * 10 < 6 >-1 * 10 < 9 > omega.cm; s3, coating the surface of the primary structural member with a coupling agent to obtain a secondary structural member; s4, the surface of the second-level structural part is coated with conductive putty, and a third-level structural part is obtained; and S5, anti-corrosion paint dry powder is electrostatically sprayed on the third-stage structural part, an anti-corrosion coating is formed through curing, and the hydraulic support structural part subjected to anti-corrosion treatment is obtained. The technical problems that in the prior art, a coating of a hydraulic support structural part is poor in protection effect under the corrosive environment with high permeability, corrosive substances can easily penetrate through the coating, and the adhesive force is reduced too fast in the using process are solved.

The utility model discloses a chain type salt mine mining device which comprises a bottom plate, a mining box, a protective door, a collecting box, a mining assembly, a mining blade and a cleaning device, the cleaning device is arranged, cleaning liquid on the inner side of a water storage tank is extracted through a water suction pump, and the cleaning liquid is conveyed to the inner side of a spraying pipe through a conveying pipe; a plurality of groups of spraying heads are used for spraying and cleaning a groove of a chain, a sliding mechanism is matched with a fixing plate to drive a spraying pipe and the plurality of groups of spraying heads to synchronously translate, a conveying pipe has good flexibility, and the angle is adjusted in cooperation with translation of the spraying pipe, so that the multi-angle cleaning effect on the groove of the chain is improved; by arranging a sliding mechanism, a driving motor drives a driving shaft to drive a movable connecting rod to perform fixed-point rotation adjustment, and drives a sliding block to perform circular rotation adjustment and perform vertical sliding adjustment along the middle part of a movable plate, so that the movable plate performs translation sliding guide along the joint of every two of four groups of soft rubber guide heads; and the spraying pipe and the fixing plate synchronously translate to adjust the angle.

The application discloses a design, construction and operation parameter optimization method of a high-impurity salt mine hydrogen storage library. Through early drilling and coring and testing, the influence of mineral composition and microorganisms in the salt layer on hydrogen purity is accurately evaluated, so that suitable salt-containing strata that can be used for hydrogen storage are screened out before construction, and the shape of the salt cavity is detected and the sealing property of the salt cavity is tested; in combination with sediment connectivity and porosity test data, the hydrogen storage capacity of the cavity is evaluated; the depth of the hydrogen-halogen water interface in the cavity is controlled to ensure the formal operation of the hydrogen storage cavity, and the hydrogen storage efficiency can be improved in combination with the production mode of hydrogen without a cushion bottom; thus, a hydrogen storage library meeting the hydrogen storage requirements is constructed in the high-impurity salt mine, and efficient utilization of the poor salt mine is realized.

This invention discloses a method for calculating the ion-locking capacity of coal-based backfill materials mixed with concentrated saline mine water, belonging to the field of coal mine underground treatment technology. Test specimens are prepared by mixing coal-based solid waste backfill materials with concentrated saline mine water from a secondary reverse osmosis system, and control specimens are prepared by mixing them with deionized water. Long-term immersion ion leaching tests are conducted on both test and control specimens. During the long-term immersion ion leaching test, multiple sampling times are set to collect the leachate and test the concentration of characteristic ions, without replenishing deionized water after each collection. Based on the characteristic ion concentrations of the leachate from the test and control specimens and the initial ion concentration of the concentrated saline mine water from the secondary reverse osmosis system, the ion-locking rate of the coal-based backfill material is calculated. The method is simple and convenient to use, providing a theoretical basis and technical support for the resource utilization of concentrated saline mine water and solid waste.

The invention provides a deep well salt mine in-situ impurity ion replacement and symbiotic resource collaborative recovery method, and relates to the technical field of salt mine resource development and comprehensive utilization. A pH response type catalyst and a H2O2-ethanol supramolecular structure are designed, a novel composite solvating-out agent is constructed, complexing-in-situ oxidation-crystallization integrated impurity removal can be achieved in the deep well salt mine, deep removal and high-purity recovery of SO4 < 2-> are achieved, meanwhile, by optimizing a reaction path, energy consumption and agent cost are reduced, and economic benefits are improved.

The application provides a double cutter disc angle adjustable structure, method and full-face tunneling machine suitable for potash salt mine, and relates to the technical field of full-face mechanized mining equipment for solid potash salt mine and other sedimentary layered deposits. The structure comprises two cutter disc assemblies arranged symmetrically left and right, wherein the output end of a main cutting gear box is rigidly connected with the cutter disc; a driving assembly is arranged on the frame of the full-face tunneling machine and is connected with the main cutting gear box; the two ends of an angle adjusting mechanism are respectively connected with the frame and the side wall of the main cutting gear box, and are used for driving the main cutting gear box to rotate around the vertical central axis thereof relative to the frame, so that the cutter disc is inclined outward relative to the tunneling direction in the horizontal plane; and the structure further comprises a controller which is respectively connected in communication with the driving assembly and the angle adjusting mechanism. The double cutter disc is inclined to form a certain outward inclination angle, the active cutting of the ground stress chain and the stress dimension reduction are realized, the rock breaking specific energy is reduced, and the cutting efficiency is improved.

The application discloses a solid potash salt mine development method, comprising the following steps: step 1, diverting surface runoff in a delineated mine area to lead the surface runoff from a source to an area far away from the potash salt mine area; step 2, after a new river channel is formed by the surface runoff diversion in step 1, performing geophysical exploration to determine an underground water enrichment area, arranging hydrological holes according to a specification, and determining parameters of the underground water; step 3, drilling at the edge of the mine area according to the parameters of the underground water obtained in step 2 to determine stratum distribution; and step 4, sealing various drill holes in a mining area in the mine area according to a specification, arranging grouting holes according to the water volume distribution of the hydrological holes, and performing grouting. The application eliminates water disasters of the solid potash salt mine from the source, and greatly reduces the geological disaster risks such as underground water leakage and collapse of a mine roof.

The application discloses a kind of salt cave comprehensive energy system two-stage programming method and system, it is related to comprehensive energy system planning technical field, including: the model of comprehensive energy system comprising different hydrogen storage salt cave unit type is constructed, whereby to minimize the total cost of comprehensive energy system, carbon dioxide emissions and salt mine resource occupation as objective function, introduce the cushion gas constraint and exhaust constraint of hydrogen storage salt cave unit, construct two-stage programming model;Month is carried out month planning simulation with time interval, determine the ratio of hydrogen storage amount and maximum expansion capacity of each hydrogen storage salt cave unit at the end of each time period;The ratio is used as new input, and under the hydrogen storage amount constraint based on new input construction, carry out annual planning simulation with time interval for hour, determine the system planning strategy including hydrogen storage salt cave unit combination operation.Improve the utilization of salt cave built under complex geological conditions, give full play to the advantage of hydrogen storage link of salt cave, realize low-carbon economic operation.

The invention relates to the field of geological drilling hole sealing, in particular to a potassium-magnesium salt mine drilling hole sealing method which comprises the following steps that a drilling rod with the diameter smaller than the hole diameter of a drilling hole is lowered into the drilling hole, and the drilling hole is circularly flushed through brine; according to the distribution of the salt layers at the drilling position, a second preset distance position above the uppermost salt layer in the stratum serves as a hole sealing segmentation position, a magnesium cement solution is pumped into the drill rod from the top of the drill rod, brine is injected into the drill rod from the top of the drill rod in a pressing mode, the liquid level of the magnesium cement solution in the drill rod is made to be located at the hole sealing segmentation position, and the drill rod is taken out; and after the magnesium cement solution is solidified, ordinary cement slurry is pumped from the magnesium cement sealing face to the hole opening cement slurry returning so as to seal the hole sealing area of the upper section. The upper-section non-salt layer adopts common cement paste for hole sealing, and the lower-section salt layer area adopts brine-resistant magnesium cement for hole sealing, so that the whole-hole sealing cost is reduced by using the common cement, high-concentration brine erosion is resisted through the magnesium cement, the common cement is prevented from losing efficacy in the salt layer, and the balance of economy and functionality is realized.

The invention relates to the technical field of salt mine layer drilling sampling and data transmission, in particular to a complex terrain salt mine layer drilling directional sampling and data transmission device which comprises a ground monitoring and power supply system, a drill string transmission system, a directional sampling execution end system and a data link feedback system. The directional sampling execution end system is integrated at the tail end of the drill string transmission system through a long taper pipe thread structure, and the data link feedback system is arranged in the directional sampling execution end system and at a key node of the drill string transmission system in a distributed mode. And the data link feedback system establishes a two-way communication link with the ground monitoring and power supply system through a wired and wireless coupled composite transmission mode, so that accurate positioning sampling and parameter monitoring of a salt mine layer in a complex environment are conveniently and efficiently realized, and the exploration efficiency function is improved.

The application discloses a passive depth measuring device, which comprises a supporting assembly and a depth measuring assembly. When depth measurement is needed, the depth measuring rod in the depth measuring assembly is released, the depth measuring rod rotates around the supporting assembly, the free end of the depth measuring rod enters into the salt mine brine and contacts the bottom of the salt pond. Since the length of the depth measuring rod is relatively long, the depth measuring rod is in an inclined state. An angle sensor can monitor the rotating angle of the depth measuring rod, and the depth of the salt layer can be obtained after calculation. When the water mining machine sails, the free end of the depth measuring rod contacts the bottom of the salt pond. When the convex and concave parts on the bottom of the salt pond are encountered, the depth measuring rod can be released after relatively large elastic deformation and restore the original shape. The rotating angle of the depth measuring rod is monitored by using the angle sensor, the depth of the salt layer can be monitored in real time, the problem that the non-contact sensor cannot measure due to the fact that there are many suspended matters in the salt lake and the surface is easy to be salted is solved, and the working reliability of the depth measuring device is improved.

The present application relates to the technical field of water-soluble mining of salt mines, and discloses a method and device for monitoring the initial open-hole dissolution of ultra-deep salt cavern reservoirs. The monitoring method comprises: calculating the wellhead radius and the height of the salt layer in the open-hole section based on drilling data; injecting water into the well to discharge the brine in the well, and measuring the first mass percentage concentration of sodium chloride in the brine in the well; when the water injection into the well reaches a set time, measuring the second mass percentage concentration of sodium chloride in the brine in the well and the mass of the brine discharged within the set time; calculating the mass of salt in the brine based on the first mass percentage concentration, the second mass percentage concentration, and the discharged mass; and calculating the diameter of the salt layer in the open-hole section based on the salt mass, the wellhead radius, the height of the salt layer in the open-hole section, and the discharged mass. The salt layer in the open-hole section is expanded by injecting water into the drill bit, and the expanded size of the salt layer in the open-hole section and the amount of sediment formed are determined by measuring the concentration difference of sodium chloride and its change.

The application discloses a flow electrode capacitive deionization device and a high-salt mine water treatment system, and belongs to the technical field of high-salt mine water treatment, and aims to solve at least one problem that flow resistance of a flow electrode in the prior art is relatively large, and the flow resistance is prone to causing at least one of the following problems: the anode side flow channel of the anode side current collecting plate and the cathode side flow channel of the cathode side current collecting plate are blocked, and the distance between the anode side current collecting plate and the cathode side current collecting plate is too large to affect charge transfer efficiency. In the application, a treatment liquid inlet pipe and a treatment liquid outlet pipe are arranged on the end surface of a treatment liquid cavity plate and are in communication with the inner cavity of the treatment liquid cavity plate; an anode side flow electrode inlet pipe and an anode side flow electrode outlet pipe are arranged on the side edge surface of the anode side current collecting plate and are in communication with the anode side flow channel in the anode side current collecting plate; and a cathode side flow electrode inlet pipe and a cathode side flow electrode outlet pipe are arranged on the side edge surface of the cathode side current collecting plate and are in communication with the cathode side flow channel in the cathode side current collecting plate. The application can be used for treating high-salt mine water.

The utility model relates to the technical field of salt mine processing, in particular to a multilayer filtering and purifying device for salt mine mining, which comprises a primary filtering box for salt mine mining, a purifying box is mounted at the bottom of the primary filtering box, and a salt water conveying pipeline is mounted at the top of the primary filtering box. According to the utility model, the primary filter box is arranged, two groups of replaceable filter screens at the top of the primary filter box can preliminarily filter saline water mined by a salt mine, the saline water can be circularly replaced, the filter effect is improved, and a limiting ring seat at the top can play a role in limiting the replaceable filter screens. A coarse quartz sand filter layer, a fine quartz sand filter layer and an activated carbon purification layer which are arranged in the purification box at the bottom of the primary filter box can be used for further filtering and purifying the saline water in a multi-layer manner. A brine conveying pipeline installed at the top of the primary filter tank can convey brine to the primary filter tank, and a stand column at the bottom of the water inlet end and a rotating base coaxially connected with the bottom can play a supporting and connecting role.

The invention discloses a thin interbed salt cavern volume calculation method and device based on three-dimensional seismic exploration, and relates to the field of volume measurement, and the method comprises the steps: firstly, building a salt cavern geologic model according to a salt cavern development rule on the basis of analyzing and researching the stratigraphic structure and physical property parameter information of a salt mining area; establishing seismic response characteristics of the salt cavity model through forward modeling; the method comprises the following steps: selecting dominant attribute parameters reflecting salt cavern characteristics through extraction and analysis of seismic attributes by utilizing geometric, kinematics, dynamics and other characteristics represented by the seismic attributes; different parts of the salt cavern are depicted according to different advantage attributes, the spatial distribution state of the salt cavern is determined through seismic attribute fusion, and the seismic response volume of the salt cavern is calculated; according to the accurate salt well salt mining quantity index statistics and in combination with the salt mine-interlayer proportion, the salt mine grade, the salt ore density, the salt well brine mining rule and the like, the comprehensive cavity building rate of the salt cavity is analyzed; and calculating the effective volume of the salt cavern according to the earthquake response volume of the salt cavern depicted by the earthquake and the comprehensive cavern building rate.

The invention discloses a method for recovering metal lead from nickel soot, and belongs to the technical field of hydrometallurgy. According to the method, a chlorine salt ore pulp electrolysis system is adopted, leaching and electro-deposition of lead are synchronously achieved in a diaphragm electrolytic cell, and metal lead is directly obtained from a cathode. The method comprises the following specific steps: washing, drying and grinding a nickel soot raw material, and then adding the nickel soot raw material into an electrolytic cell anode chamber separated by an acid and alkali resistant filter cloth diaphragm; the anode chamber and the cathode chamber are filled with electrolyte with the same composition, and the electrolyte comprises NaCl, HCl, PbCl2 and a dispersing agent; a ruthenium-plated titanium plate is used as an anode, a stainless steel plate is used as a cathode, and electrolysis is carried out under a constant current condition. According to the method, leaching and electrodeposition are integrated, the technological process is short, energy consumption is low, environment friendliness is achieved, lead in the nickel soot can be efficiently recycled, the recycling rate can reach 90% or above, and remarkable economic and environment-friendly benefits are achieved.

The invention provides a membrane separation-induced crystallization-evaporation pond integration-based high-salt mine water resource chemical treatment method, which comprises the following steps: pretreating high-salt mine water, and sequentially carrying out first-stage and second-stage reverse osmosis membrane separation for desalination and concentration; secondary reverse osmosis concentrated water enters a nanofiltration system to realize selective separation of divalent ions; carrying out induced crystallization on the nanofiltration concentrated water to remove calcium ions and recover a calcium sulfate byproduct; after crystallization, effluent is further concentrated through three-stage reverse osmosis, concentrated water finally enters a multi-stage evaporation pond, and mirabilite and sodium chloride are separated out through temperature control grading. Through collaborative integration of multi-stage membrane separation and induced crystallization, efficient desalination, deep concentration and scaling control of high-salt mine well water are achieved, the system water recovery rate is larger than or equal to 90%, meanwhile, synchronous recovery of water resources and multiple salt resources is achieved, and the system has the advantages of being low in treatment cost, small in occupied area, high in recycling degree and free of emission.

This invention provides a method and system for continuous mining of potash mines based on a rectangular full-face tunneling machine, belonging to the field of mechanized full-face mining technology in underground mines. Firstly, the invention adopts a "loop + three-stage roadway + short-walled room-and-pillar" layout, strictly controlling the exposed area and time of the roof, significantly improving the stability and safety of the mining area. Secondly, through efficient and continuous operation of the entire process of cutting, loading, transfer, and transportation, combining comb-shaped tunneling with unidirectional circulating transportation reduces equipment idle travel, avoids transportation congestion and scheduling conflicts, supports parallel operation of multiple working faces, and completely solves the industry pain point of severe mismatch between mining and transportation efficiency in potash mines. Finally, by precisely matching parameters according to the selection requirements of the rectangular full-face tunneling machine, it has strong adaptability and provides core technical support for the large-scale development of large and extra-large potash mines.

The invention discloses a high-impurity salt mine oil storage sealing performance evaluation device and a test parameter optimization method, a sample clamping and reaction module comprises an external protection shell, an internal protection sleeve and a surrounding rock pressurization area, and a storage surrounding rock sample and a sediment bulk sample are placed in the internal protection sleeve; a confining pressure pressurizing area is arranged between the internal protective sleeve and the external protective shell; the petroleum injection and detection module is connected with the input end of the internal protective sleeve, and the data monitoring module is connected with the outlet end of the internal protective sleeve; the petroleum and brine circulation operation module is connected with the internal protection sleeve so as to simulate the petroleum and brine injection and production circulation process in the oil storage. According to the invention, through the mutual joint effect of the modules, the real coupling effect between the reservoir surrounding rock in the salt mine oil storage and the stored petroleum and sediment is simulated, so that the sealing performance of the salt mine oil storage in a real long-term operation state is accurately evaluated; and reliable theoretical support is provided for safety design evaluation and operation of the high-impurity large-scale salt mine oil storage.

The utility model discloses a salt mining ship for collecting hard salt mines, and mainly relates to the technical field of salt mining ships. Comprising a rack, the left end and the right end of the rack are each provided with a buoyancy tank crawler-type chassis, the front end of each buoyancy tank crawler-type chassis is provided with a supporting arm, the rear end of each supporting arm is provided with a rotary platform, and the front end of each supporting arm is provided with a milling and digging head; a working platform is arranged above the rack, a crusher, a centrifugal salt mining pump and a power system for providing power for the centrifugal salt mining pump are sequentially arranged on the working platform from front to back, a brine suction pipe is arranged between each milling and digging head and the crusher, and the brine suction pipes are communicated with an inlet of the crusher; the outlet of the crusher is communicated with the inlet end of the centrifugal salt mining pump, and the outlet end of the centrifugal salt mining pump is connected with a brine output pipe; according to the utility model, the collection of the sodium salt mine can be completed in the sodium salt pond, and the pipe blocking risk of the conveying pipeline can be reduced.