94 results about "Salt mine" patented technology

The invention relates to the technical field of hydraulic supports for potassic salt mines, in particular to an assembling device and method for a top beam of a hydraulic support for potassic salt mines, the assembling device comprises a first tool used for pre-assembling an outer main reinforcement assembly, and in a first positioning state, a positioning plate is supported on one side of a main reinforcement corresponding to the outer main reinforcement assembly in parallel; the corresponding lug plates or flitch plates are positioned between the positioning plates and the main reinforcements; the top beam has the beneficial effects that the inner main reinforcement assembly and the outer main reinforcement assembly are both pre-assemblies, that is, the subsequent assembling and welding processes are carried out after welding is completed to form a module, the assembling efficiency of the top beam is improved, and the assembling efficiency of the top beam is improved. Under the action of the first tool, the outer main reinforcement assembly can be efficiently assembled, and the possibility of wrong assembly is reduced through accurate positioning, so that the safety and the stability of the whole structure are improved.

The invention relates to the technical field of well mine salt mining, in particular to a twin-well brine mining device capable of increasing salt mine brine content and a multi-well series connection method thereof, the device comprises a newly-built well unit, a single-well convection brine mining process is set, and the newly-built well unit comprises a water injection well and a brine mining well; the old well unit adopts a twin-well convection brine extraction process and comprises a water injection well and a brine extraction well; the pipeline connecting system is used for communicating the brine extraction well of the newly-built well unit with the water injection well of the old well unit; the flow adjusting device is arranged on the pipeline connecting system and used for adjusting the flow in the pipeline; the central control system is used for monitoring and adjusting operation parameters of each well group; by establishing a series system between the newly-built well and the old well, graded utilization and circulation optimization of brine resources are achieved, a traditional independently-operated well group is converted into an organic whole for cooperative production, low-concentration brine generated during the groove building period of the newly-built well can be secondarily utilized by the old well, and therefore the utilization rate of the resources is remarkably increased.

The invention relates to the field of salt mine drilling well plugging, in particular to a bag type drilling well leakage plugging device capable of being used in a combined mode and a using method thereof.The bag type drilling well leakage plugging device comprises a drilling well and a drilling rod installed in the drilling well and further comprises a connecting sleeve composed of two plate bodies, and the connecting sleeve is connected with the surface of the drilling rod in an attached mode; a first bag body is arranged on the outer side of the surface of each connecting sleeve, grouting bases are arranged on the surfaces of the connecting sleeves, a second bag body is arranged between the two grouting bases, a liquid filling channel and a grouting channel are formed in the top of the surface of each connecting sleeve, and a filling connecting piece is arranged between the two grouting bases. A grouting opening is formed in the surface of the grouting seat; the bag structure is adopted, combined use is formed, the two sides of a leakage point are plugged through the first bag body, the closed area is formed, cement grout is injected into the closed area, the leakage point is plugged, meanwhile, the second bag body isolates the cement grout from the drill rod, drill jamming is prevented, and practicability is improved.

The invention relates to the technical field of salt mine collection, in particular to a stoping and filling device of a salt mine well and an anti-accumulation method of the stoping and filling device, the device comprises a butt joint well group, and the butt joint well group comprises a mud inlet well and a brine outlet well and is used for achieving backfilling of calcium magnesium mud and stoping of brine; the well logging system is used for detecting the shaft condition and the position of a cavity top plate; the pipe cutting equipment is used for cutting off the sleeve at a preset position below the top plate of the dissolving cavity; the sonar cavity measuring equipment is used for measuring the spatial form of the dissolving cavity; scale on the inner wall of the casing pipe is removed through a high-pressure water nozzle and steel wire brush composite cleaning technology, and pipe cutting position control accurate to the millimeter level is matched, so that a slurry conveying channel is unobstructed, the problem of pipeline blockage is solved, and production halt loss caused by blockage is avoided.

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 discloses a reverse osmosis treatment method for salt-containing mine well water. The method comprises the following steps: adding a reverse osmosis scale inhibitor into the pretreated and softened salt-containing mine well water, and filtering the salt-containing mine well water in a security filter; the filtered mine water is subjected to heat exchange through a heating heat exchanger and then enters a reverse osmosis device; concentrated water generated by the reverse osmosis device flows back into the reverse osmosis device and is circulated again for reverse osmosis; concentrated water discharged from the reverse osmosis device enters the evaporative crystallization salt separation device; and high-heat condensed water generated by the evaporative crystallization salt separation device is used as a heat source of the heating heat exchanger and chemical cleaning replenishment water of the reverse osmosis device. By adopting a one-stage and one-section design, the reverse osmosis treatment process can be effectively shortened, and the occupied area is reduced; concentrated water is recycled, so that the reverse osmosis recovery rate is greater than or equal to 90%; discharged concentrated water can directly enter the evaporative crystallization salt separation system, high-heat condensate water generated by the evaporative crystallization salt separation system serves as a raw water heat exchange heat source and reverse osmosis chemical cleaning replenishing water, and sodium sulfate decahydrate can be prevented from being separated out from the concentrated water under the low-temperature condition.

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 present invention provides a microbial liquid fertilizer prepared by using high-salt mine drainage, a preparation method thereof, and an application thereof in the treatment of polluted soil in coal mining areas. The microbial liquid fertilizer is composed of a first group of liquid fertilizer and a second group of liquid fertilizer. The preparation method includes: 1) pretreatment of mine drainage; 2) preparation of a fermentation substrate; 3) preparation of the first group of liquid fertilizer; 4) preparation of the second group of liquid fertilizer. The first group of liquid fertilizer is used to solidify heavy metals in the soil and reduce their mobility; the second group of liquid fertilizer is applied after 30 days to increase the contents of phosphorus, potassium, and nitrogen in the soil and improve soil fertility. The present invention effectively utilizes high-salt mine drainage, realizes resource recycling, and at the same time, through staged application of the fertilizer, achieves the dual effects of heavy metal stabilization and soil remediation, providing an efficient solution for ecological restoration in coal mining areas.

The utility model provides a coring device which comprises a placing table, a connecting plate is arranged in the placing table in a sliding mode, a frame plate is arranged in the connecting plate in a sliding mode, a mounting ring is arranged in the frame plate in a rotating mode through a rotating column, a first motor is arranged in the mounting ring, and an output shaft of the first motor is connected with a coring drill cylinder through a coupler. A first electric push rod is arranged at the upper end of the connecting plate, the telescopic end of the first electric push rod is connected with the upper end of the frame plate, an adjusting mechanism used for adjusting the angle of the coring drill barrel is arranged on the right side of the frame plate, a front-back moving mechanism for driving the coring drill barrel to move front and back is arranged at the lower end of the containing table, and a clamping mechanism is arranged at the upper end of the containing table. According to the coring device, drilling and coring can be carried out on multiple positions of the rock salt mine without releasing a clamping mechanism or manually adjusting the position of the rock salt mine by personnel, the coring speed can be obviously increased, the non-production time is shortened, the manual intervention is reduced, the operation risk is reduced, and the personnel safety is guaranteed.

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.

The present invention provides an underground soluble salt mining structure and method based on leakage recharge, belonging to the technical field of soluble salt mining, including a recharge channel well, a brine production well, a sealing assembly, and a connecting well. The connecting well is opened inside the soluble salt ore layer. The brine production well penetrates through the upper rock formation and extends into the soluble salt layer. When a confined aquifer is located above the soluble salt layer to form an upper confined aquifer, the recharge channel well penetrates through the upper rock formation and the upper confined aquifer and extends into the soluble salt ore layer. The present invention utilizes the pressure of the underground confined water itself, and through an artificial recharge channel, enables the underground confined water to enter the soluble salt layer, and then dissolves and mines the soluble salt. On the one hand, it solves the problem of insufficient surface fresh water volume, and on the other hand, by utilizing the advantage that the groundwater temperature is higher than that of surface water, it can improve the dissolution efficiency of soluble salt to a certain extent, and further improve the mining efficiency of soluble salt.

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 present invention discloses a magnetic foaming, freeze-dried, modified chitosan material, its preparation method, and application, and belongs to the field of groundwater treatment in coal mine areas. The present invention combines modification with ferrosoferric oxide, foaming modification with sodium dodecylsulfonate, and flash freezing modification to obtain a magnetic foaming, freeze-dried, modified chitosan material. The chitosan material is a modified chitosan microsphere structure suitable for adsorbing mine water pollutants. The chitosan microsphere is stable in neutral, alkaline, and high-salt mine water solutions, and has a good ability to remove metal ions such as iron, manganese, and calcium from mine water.

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.