Pipeline collecting and releasing assembly of deep well liquid extractor and application method of pipeline collecting and releasing assembly

Abstract

The invention discloses a deep well liquid extractor pipeline collecting and releasing assembly and an application method thereof, and relates to the technical field of in-situ leaching uranium mining related machinery. A pipeline collecting and releasing assembly of a deep well liquid extractor comprises a three-partition coil pipe device. The three-partition pipe coiling device comprises a main body rack, a water pipe coiling mechanism and an oil pipe coiling mechanism; the two sets of oil pipe coil pipe mechanisms are distributed on the two sides of the water pipe coil pipe mechanism, the water pipe coil pipe mechanism is detachably connected with the upper end opening of the water pipe, and the two sets of oil pipe coil pipe mechanisms are detachably connected with the upper end openings of the two oil pipes respectively. The deep well liquid extractor lowering method is based on a deep well liquid extractor pipeline retracting and releasing assembly and is used for lowering a liquid extractor from the outside of an in-situ uranium leaching mine to a preset depth in the well. The method comprises the following steps: suspending the liquid extractor; installing a liquid extractor guide device; and lowering the water-oil pipeline. The device has the advantages of being easy to operate, stable in folding and unfolding and capable of avoiding scratching or colliding with the well wall.

Description

Technical Field

[0001] The invention relates to the technical field of machinery related to in-situ leaching of uranium, in particular to a deep well liquid extractor pipeline retracting and releasing assembly and an application method thereof. Background Art

[0002] The invention patent with the authorization announcement number CN116292220B discloses a "hydraulic multi-stage piston extraction system for extracting leachate from in-situ uranium mines deep underwater (less than 200m from the wellhead). The core component for extracting liquid in the extraction system is a liquid extraction mechanism, which is connected to the hydraulic station on the ground through two oil pipes at the upper end, and is connected to the liquid storage tank on the ground through a water pipe at the upper end. When the liquid extraction mechanism is lowered to a predetermined depth in the well, the liquid extraction mechanism is driven by the hydraulic power provided by the hydraulic station, and the suction force provided by the ground water pump is used to extract the liquid in the well and transport it upward through the water pipe, and finally the extracted liquid is discharged into the liquid storage tank.

[0003] The above-mentioned liquid extraction system has the following shortcomings in practical application: 1. During the lowering and lifting process of the liquid lifting mechanism, the position and stability requirements are high, and the operation is difficult. This is due to the small gap between the outer wall of the liquid lifting mechanism and the wall of the uranium mine, and the lowering depth is too deep (less than 200m from the wellhead). During the lowering and lifting process of the liquid lifting mechanism, the outer cylindrical surface of the liquid lifting mechanism and the side wall of the anti-winding device (installed on the cable-tube complex at intervals) may scratch or collide with the wall of the uranium mine, causing obstacles to retraction and damage to the wall.

[0004] 2. The upper end of the liquid lifting mechanism is connected to a cable-pipe complex, and the upper end of the cable-pipe complex is connected to the composite joint on the drum of the winch. During the lowering and lifting process of the liquid lifting mechanism, the cable-pipe complex may undergo radial twisting (horizontal twisting). However, the twisting is difficult to correct actively, and as the lowering and lifting process proceeds, the twisting angle may further increase, resulting in the liquid lifting mechanism not being able to be lowered or lifted smoothly. In severe cases, the liquid lifting mechanism may be stuck in the well.

[0005] 3. The upper end of the liquid lifting mechanism is connected to a cable-tube complex, and the upper end of the cable-tube complex is connected to a composite joint on the drum of the winch. The structure of the cable-tube complex is complex (including a U-shaped steel cable, a water pipe, two oil pipes and several anti-winding devices). When the cable-tube complex is wound on the drum of the winch, there is a high probability of entanglement between the oil pipe and the steel cable, the steel cable and the steel cable, and the steel cable and the water pipe, resulting in a problem when releasing the cable-tube complex next time. Summary of the invention

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a deep well liquid extractor pipeline retracting and releasing assembly and an application method thereof, which solves the following shortcomings existing in the existing hydraulic in-situ uranium mine leachate multi-stage piston liquid extracting system in practical applications: the lowering and lifting processes of the liquid extracting mechanism have high requirements on position, posture and stability, and the operation is difficult; during the lowering or lifting process of the liquid extracting mechanism, the cable-tube complex is prone to radial torsion that is difficult to eliminate, resulting in the problem that the lowering or lifting of the liquid extracting mechanism is not smooth; when the cable-tube complex is wound on the drum of the winch, there is a high probability that entanglement will occur between its components, resulting in the problem that the cable-tube complex will not be released smoothly next time.

[0007] The technical solution of the present invention is: a deep well liquid extractor pipeline retractable assembly, including a water pipe and two oil pipes; it also includes a three-zone coil device; the three-zone coil device includes a main frame, a water pipe coil mechanism and an oil pipe coil mechanism; the main frame is arranged on the ground outside the in-situ uranium mine, the water pipe coil mechanism and the oil pipe coil mechanism are both installed on the main frame, the number of the oil pipe coil mechanism is two sets, the two sets of oil pipe coil mechanisms are distributed on both sides of the water pipe coil mechanism, the water pipe coil mechanism is detachably connected to the upper port of the water pipe, and the two sets of oil pipe coil mechanisms are detachably connected to the upper ports of the two oil pipes respectively.

[0008] A further technical solution of the present invention is: the water pipe coil mechanism comprises a reel A, a support A, a wheel seat A, a guide wheel A and a motor A; a cavity is provided inside the reel A, two through holes connected to the cavity are provided on the outer circumferential surface of the reel A, and the two through holes are arranged at intervals along the circumference of the reel A, the reel A is horizontally rotatably mounted on the support A, the support A is fixedly mounted on the main frame, the wheel seat A is vertically rotatably mounted on the main frame and is located obliquely above the reel A, the guide wheel A is horizontally rotatably mounted on the wheel seat A, the motor A is fixedly mounted on the support A and is associated with the reel A to drive the reel A to rotate, thereby driving the water pipe wound on the reel A to be retracted or released; the water pipe coil mechanism is detachably connected to the upper port of the water pipe through a water pipe end connection assembly mounted on the outer circumferential surface of the reel A; The water pipe end connection assembly includes a lifting ring, a wire rope, a locking buckle and a quick pipe joint C; the lifting ring includes a ring hole portion and a screw portion fixedly connected to each other; the wire rope is arranged in the cavity of the drum A, and the front and rear ends of the wire rope respectively pass through two through holes on the drum A and are located outside the drum A, the front end of the wire rope passes through the through hole of the drum A to form a free end, and the rear end of the wire rope passes through the ring hole portion of the lifting ring to form a free end; there are two locking buckles, one of which is fixedly installed on the front end of the wire rope Between the wire rope body, another lock buckle is fixedly installed between the rear end head of the wire rope and the wire rope body, so that a front end locking ring relatively close to the drum A and a rear end locking ring relatively far away from the drum A are formed at the front end and the rear end of the wire rope respectively; the wire rope is the wire rope body except for the front end locking ring and the rear end locking ring, and the length of the wire rope body is more than twice the circumference of the outer circular surface of the drum A; the front end of the quick pipe connector C is threadedly connected to the screw part of the lifting ring, and the rear end is used for detachable connection with the upper port of the water pipe.

[0009] A further technical solution of the present invention is: the tubing coil mechanism includes a reel B, a support B, a wheel seat B, a guide wheel B, a motor B, a connecting pipe B and a rotary joint; a cavity is provided inside the reel B, and the reel B is horizontally rotatably mounted on two supports B at both ends through short shafts, and the two short shafts at both ends of the reel B are defined as the power short shaft and the other short shaft is defined as the driven short shaft; the end of the driven short shaft connected to the reel B is defined as the front end, and the end of the driven short shaft away from the reel B is defined as the rear end, and the driven short shaft is provided with a hydraulic oil circuit channel that runs through the front and rear end surfaces thereof, and the hydraulic oil circuit channel is on the driven short shaft A front channel opening and a rear channel opening are respectively formed on the front and rear end surfaces, the front channel opening is open in the cavity of the reel B, and the rear channel opening is located outside the reel B; the support B is fixedly mounted on the main frame; the wheel seat B is fixedly mounted on the main frame and is located obliquely above the reel B; the guide wheel B is horizontally rotatably mounted on the wheel seat B; the motor B is fixedly mounted on the support B and is associated with the short shaft at one end of the reel B to drive the reel B to rotate, thereby driving the oil pipe wound on the reel B to be reeled in or released; the oil pipe coiling mechanism is detachably connected to the upper port of the oil pipe through the oil pipe end connection assembly mounted on the outer circumference of the reel B; The oil pipe end connection assembly includes a quick pipe joint D, both ends of which can be connected to pipes. The quick pipe joint D is fixedly installed on the outer cylindrical surface of the reel B, and the two ends of the quick pipe joint D are respectively located outside the reel B and in the cavity of the reel B. The end of the quick pipe joint D located outside the reel B is used to connect the upper port of the oil pipe; the connecting pipe B is located in the cavity of the reel B, one end of the connecting pipe B is sealed and fixedly connected to the end of the quick pipe joint D located in the cavity of the reel B, and the other end of the connecting pipe B is sealed and fixedly connected to the front channel port of the driven short shaft; the rotary joint includes an inner ring split and an outer ring split; the inner ring split is cylindrical, and a blind hole extending to the rear end face is provided on its front end face, and an annular groove arranged along the circumferential direction is provided on its outer cylindrical surface. The annular groove is connected to the blind hole through several connecting holes; the outer ring split is in the shape of a sleeve, and its seal is rotatably installed on the inner ring split and is positioned in the axial direction. An oil drain hole connected to its inner hole is provided on its outer circular surface, and the port of the oil drain hole facing the outside of the outer ring split is the outer port, and the port of the oil drain hole facing the inner hole of the outer ring split is the inner port; when the outer ring split is sleeved on the inner ring split, the inner port of the oil drain hole of the outer ring split is opposite to and connected to the annular groove on the inner ring split, and the outer port of the oil drain hole on the outer ring split is connected to an external hydraulic station for providing hydraulic power; the front end seal of the inner ring split of the rotary joint is fixedly connected to the rear end of the driven short shaft, so that the hydraulic oil circuit channel of the driven short shaft is connected to the blind hole of the inner ring split.

[0010] A further technical solution of the present invention is: the water pipe end connection assembly also includes a guide steel pipe; the guide steel pipe is axially welded between two through holes on the outer cylindrical surface of the drum A, and the guide steel pipe is surrounded by the front end locking ring of the steel wire rope. Based on the space occupied by the guide steel pipe, the front end locking ring of the steel wire is made to cover the outer cylindrical surface of the guide steel pipe and avoid contact between the steel wire rope and the edge of the through hole of the drum A.

[0011] A further technical solution of the present invention is that an encoder A for recording the number of rotations is installed on any short shaft at both ends of the reel A of the water pipe coil mechanism, and an encoder B for recording the number of rotations is installed on any short shaft at both ends of the reel B of the two sets of oil pipe coil mechanisms.

[0012] A further technical solution of the present invention is: the deep well liquid extractor pipeline retraction and extension assembly also includes a water-oil pipeline restraint; the water-oil pipeline restraint is fixedly installed at intervals on the outside of a water pipe and two oil pipes, and is used to confine the two oil pipes on both sides of a water pipe, thereby connecting a water pipe and two oil pipes into a flexible pipeline complex, and the water-oil pipeline restraint is a rigid node on the flexible pipeline complex.

[0013] A further technical solution of the present invention is: the water-oil pipeline restraint includes a cylindrical restraint body, a through water pipe limiting channel and two through oil pipe limiting channels are provided in the middle of the restraint body, the two oil pipe limiting channels are symmetrically distributed on both sides of the water pipe limiting channel, three guide wheels C are rotatably mounted on the outer circumferential surface of the restraint body in an annular shape and at the same radial section position, and the rotating shafts of the three guide wheels C are perpendicular to the axial and radial arrangement of the water pipe limiting channel; the restraint body is composed of two semi-cylindrical The two parts are spliced ​​and fixedly connected, the water pipe limiting channel is formed by splicing the semicircular grooves on the two semi-cylindrical parts, and the two oil pipe limiting channels are respectively located on the two semi-cylindrical parts; when the water pipe limiting channel embraces the outer wall of the water pipe, the water pipe limiting channel and the water pipe form an interference fit, and when the oil pipe is stuck in the oil pipe limiting channel, the oil pipe and the oil pipe limiting channel form an interference fit; when the liquid lifter moves up and down in the in-situ uranium mine, the three guide wheels C in the water-oil pipeline restraint are in rolling contact with the wall of the in-situ uranium mine at the same time.

[0014] The technical solution of the present invention is: a method for lowering a deep well liquid extractor, based on the above-mentioned deep well liquid extractor pipeline retracting and releasing assembly, for lowering the liquid extractor from outside the well of an in-situ leaching uranium mine to a predetermined depth in the well; The liquid extractor is cylindrical, with a water outlet and two oil ports symmetrically arranged around the water outlet on its upper end surface, and at least one water inlet on its outer circumferential surface. The two oil ports are respectively sealed and fixedly connected to the lower ends of the two oil pipes, and the water outlet is sealed and fixedly connected to the lower end of the water pipe; Here’s how: S01, suspension extractor: A. Confirm that the upper end of the water pipe is connected to the rear end of the quick pipe joint C, and the upper ends of the two oil pipes are plugged into the two quick pipe joints D located outside the reel B; B. The motor A in the water pipe coil mechanism starts, driving the reel A to rotate to wind around the water pipe; C. The motors B in the two sets of tubing coiling mechanisms are started simultaneously, driving the two reels B to rotate to wind up the two tubings; D. Through the actions of steps B and C, the liquid extractor is suspended and it is confirmed that the liquid extractor is located directly above the wellhead of the in-situ leaching uranium mine; In this step, steps B and C are executed simultaneously to control the rotation speed of motor A and two motors B so that the winding speed of the water pipe and the two oil pipes is always consistent; S02, install the guide device of the liquid extractor: The liquid extractor guide device is installed on the lower end surface of the liquid extractor, so that in the subsequent steps, when the liquid extractor is lifted and moved in the in-situ uranium mine, the liquid extractor guide device rolls in contact with the wall of the in-situ uranium mine; the liquid extractor guide device includes a plate-like main body in the shape of a circular plate, a bolt hole is provided in the middle of the plate-like main body, the plate-like main body is threadedly connected to the lower end surface of the liquid extractor through bolts inserted into the bolt holes, and three guide wheels D are rotatably installed on the outer circumferential surface of the plate-like main body in a circular shape and at the same radial section position, and the rotating shafts of the three guide wheels D are perpendicular to the axial and radial arrangement of the plate-like main body; when the liquid extractor moves in the in-situ uranium mine, the three guide wheels D in the liquid extractor guide device roll in contact with the wall of the in-situ uranium mine at the same time; S03, lowering of water and oil pipeline: A. The motor A in the water pipe coil mechanism starts, driving the reel A to rotate to release the water pipe; B. The two motors B in the two sets of tubing coiling mechanisms are started simultaneously to drive the two reels B to rotate to release the two tubings; C. Through the actions of steps A and B, the liquid extractor is lowered into the well of the in-situ uranium leaching well through the wellhead of the in-situ uranium leaching well; D. Starting from the time when the liquid extractor as a whole enters the wellhead of the in-situ uranium mine, water-oil pipeline restraints are installed on the outside of the water pipe and two oil pipes every 20-60m to avoid interference or entanglement between the water pipe and the oil; when the liquid extractor is lowered to a specific depth in the in-situ uranium mine, the lowering method is completed; In this step, during the lowering process of the liquid extractor, all guide wheels D in the guide device of the liquid extractor are in rolling contact with the wall of the in-situ uranium mine at the same time, and all guide wheels C in the water-oil pipeline restraint are in rolling contact with the wall of the in-situ uranium mine at the same time; In this step, steps A and B are executed simultaneously to control the rotation speed of motor A and the two motors so that the release speed of the water pipe and the two oil pipes is always consistent.

[0015] A further technical solution of the present invention is: it also includes an M step arranged between steps S02-S03; M, water pipe anti-fall protection: prepare a protective rope, and after the protective rope is passed around the main frame, the two ends of the protective rope are loosely tied to the water pipe in a double loop knot (sheep's hoof knot) manner, thereby forming an upper and lower knot loop between the protective rope and the water pipe, and the relaxation is defined as the protective rope contacting the water pipe without hindering the water pipe from moving upward or downward; if in the subsequent steps, the upper port of the water pipe accidentally detaches, while the water pipe falls rapidly, the protective rope is automatically tensioned, and the friction between the two knot loops and the outer wall of the water pipe locks the water pipe to prevent the water pipe from falling.

[0016] Compared with the prior art, the present invention has the following advantages: 1. It is used for the retraction and extension operation of the liquid extractor (liquid extracting mechanism in CN116292220B) in an in-situ uranium mine; it has the characteristics of simple operation, smooth retraction and extension, and avoidance of scratches or collisions with the well wall; it can effectively reduce the power requirement of the three-zone coil device (equivalent to a winch); it has the function of automatically eliminating the radial torsion of the pipeline complex during the retraction and extension process; it can largely avoid the unsmooth retraction and extension caused by the entanglement of the pipeline / pipeline.

[0017] 2. Avoid collision: During the retraction and extension of the liquid lifter, all guide wheels C in the water-oil pipeline restraint are in rolling contact with the wall of the in-situ uranium mine at the same time, and all guide wheels D in the guide device of the liquid lifter are in rolling contact with the wall of the in-situ uranium mine at the same time, which can effectively avoid the vibration or shaking at the ground end from being transmitted to the water pipe, oil pipe and liquid lifter, thereby avoiding the water pipe, oil pipe and liquid lifter from colliding or scratching the wall of the in-situ uranium mine.

[0018] 3. Easy to retract and release: Ⅰ. The three-zone coil device retracts and releases the water pipe and two oil pipes separately, which is equivalent to three independently operated winches. Compared with the solution in CN116292220B that all pipes are wound on the same reel, the power requirement for a single motor is significantly reduced. Ⅱ. During the process of coiling the water pipe, the water in the water pipe is automatically discharged through the pressure relief port of the burst valve under the action of gravity, and a large amount of liquid will not remain in the water pipe, thereby reducing the operating load of the water pipe coil mechanism.

[0019] 4. Eliminate torsion: The wheel seat A in the water pipe coil mechanism is vertically rotatably installed on the main frame. When the wheel seat A rotates, the guide wheel A rotatably installed on the wheel seat A also rotates accordingly; this structure can effectively eliminate the radial torsion of the water pipe during the retraction and release process, and improve the stability of the liquid lifter during the retraction and release process.

[0020] 5. Avoid entanglement: The weight of the liquid lifter is borne by the suspended water pipe, the friction between all guide wheels C and the well wall, and the friction between all guide wheels D and the well wall. Compared with the solution in CN116292220B that only uses steel wire ropes to bear the weight of the liquid lifter, it effectively avoids the problem of unsmooth retraction and extension of the liquid lifter due to easy entanglement of the steel wire rope.

[0021] The present invention is further described below in conjunction with the figures and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 for Figure 1 Right view of; Figure 3 for Figure 2 A top view of Figure 4 for Figure 1 The enlarged view of Part I; Figure 5 for Figure 2 The enlarged view of Part II in the figure; Figure 6 for Figure 2 The enlarged view of Part III; Figure 7 for Figure 6 The enlarged view of part IV in FIG. Figure 8 It is a three-dimensional structural diagram of the water-oil pipeline restraint; Fig. 9 It is a three-dimensional structural diagram of the liquid extractor guide device; Fig.10 It is a structural schematic diagram of a water pipe end connection component.

[0023] Legend: liquid extractor 100; water outlet 101; oil outlet 102; main frame 200; water pipe 300; oil pipe 400; reel A11; support A12; wheel seat A13; guide wheel A14; motor A15; lifting ring 161; wire rope 162; front locking ring 1621; rear locking ring 1622; lock buckle 163; quick pipe joint C164; guide steel pipe 165; reel B21; support B22; wheel seat B2 3; guide wheel B24; motor B25; quick pipe joint D26; driven short shaft 27; hydraulic oil channel 271; connecting pipe B28; rotary joint 29; inner ring split 291; blind hole 2911; annular groove 2912; connecting hole 2913; outer ring split 292; oil drain hole 2921; plate-like body 31; guide wheel D32; restrainer body 51; water pipe limiting channel 511; oil pipe limiting channel 512; guide wheel C52. DETAILED DESCRIPTION Example 1

[0024] like Figure 1-10 As shown, the deep well liquid extractor pipeline retractable assembly includes a water pipe 300, two oil pipes 400, a three-zone coil device and a water-oil pipeline restraint.

[0025] The three-zone coil device includes a main frame 200, a water pipe coil mechanism and an oil pipe coil mechanism. The main frame 200 is set on the ground outside the in-situ uranium mine, and the water pipe coil mechanism and the oil pipe coil mechanism are both installed on the main frame 200. There are two sets of oil pipe coil mechanisms, and the two sets of oil pipe coil mechanisms are distributed on both sides of the water pipe coil mechanism. The water pipe coil mechanism is detachably connected to the upper end of the water pipe 300, and the two sets of oil pipe coil mechanisms are detachably connected to the upper ends of the two oil pipes 400 respectively.

[0026] The water pipe coil mechanism includes a reel A11, a support A12, a wheel seat A13, a guide wheel A14 and a motor A15. A cavity is provided inside the reel A11, and two through holes connected to the cavity are provided on the outer circumferential surface of the reel A11, and the two through holes are arranged at intervals along the circumference of the reel A11. The reel A11 is installed on the support A12 for horizontal rotation (that is, the rotation axis is arranged horizontally), and the support A12 is fixedly installed on the main frame 200. The wheel seat A13 is installed for vertical rotation (that is, the rotation axis is arranged vertically) on the main frame 200 and is located obliquely above the reel A11. The guide wheel A14 is installed for horizontal rotation on the wheel seat A13, and the motor A15 is fixedly installed on the support A12 and is associated with the reel A11 (the association method is that the shaft of the motor A15 is connected to the rotating shaft of the reel A11 through a coupling) to drive the reel A11 to rotate, thereby driving the water pipe wrapped around the reel A11 to be reeled or released. The water pipe coil mechanism is detachably connected to the upper end of the water pipe through a water pipe end connection assembly installed on the outer circumferential surface of the drum A11. The water pipe end connection assembly includes a lifting ring 161, a wire rope 162, a lock buckle 163 and a quick pipe joint C164. The lifting ring 161 includes a ring hole portion and a screw portion that are fixedly connected to each other. The wire rope 162 is arranged in the cavity of the drum A11, and the front and rear ends of the wire rope 162 respectively pass through the two through holes on the drum A11 and are located outside the drum A11. The front end of the wire rope 162 passes through the through hole of the drum A11 to form a free end, and the rear end of the wire rope 162 passes through the ring hole portion of the lifting ring 161 to form a free end. There are two lock buckles 163, one of which is fixedly installed between the front end of the wire rope 162 and the main body of the wire rope, and the other lock buckle 163 is fixedly installed between the rear end of the wire rope 162 and the main body of the wire rope, so that a front locking ring 1621 relatively close to the drum A11 and a rear locking ring 1622 relatively far from the drum A11 are formed at the front end and the rear end of the wire rope, respectively. The wire rope 162 is a main body of the wire rope except for the front locking ring 1621 and the rear locking ring 1622. The length of the main body of the wire rope is more than twice the circumference of the outer circumference of the drum A11 (equivalent to the wire rope main body being able to wrap around the drum A11 twice in the radial direction at the shortest). Based on this structure, the through hole on the drum A11 can be prevented from directly bearing the tension during the retraction and release process, and the tension is distributed to the entire drum A11, effectively avoiding the concentration of tension and causing the drum wall of the drum A11 to break at the two through holes. The front end of the quick pipe connector C164 is threadedly connected to the screw portion of the lifting ring 161 , and the rear end is used for detachable connection with the upper end of the water pipe 300 .

[0027] The tubing coiling mechanism includes a reel B21, a support B22, a wheel seat B23, a guide wheel B24, a motor B25, a connecting pipe B28 and a rotary joint 29. A cavity is provided inside the reel B21. The reel B21 is horizontally rotatably mounted on two supports B22 at both ends through short shafts. The two short shafts at both ends of the reel B21 are defined as the power short shaft associated with the motor B25, and the other short shaft is defined as the driven short shaft 27. The end of the driven short shaft 27 connected to the reel B21 is defined as the front end, and the end of the driven short shaft 27 away from the reel B21 is defined as the rear end. The driven short shaft 27 is provided with a hydraulic oil passage 271 that passes through its front and rear end surfaces. The hydraulic oil passage 271 forms a front channel opening and a rear channel opening on the front and rear end surfaces of the driven short shaft 27, respectively. The front channel opening is open in the cavity of the reel B21, and the rear channel opening is located outside the reel B21. The support B22 is fixedly mounted on the main frame 200, the wheel seat B23 is fixedly mounted on the main frame 200 and is located obliquely above the reel B21, the guide wheel B24 is horizontally rotatably mounted on the wheel seat B23, the motor B25 is fixedly mounted on the support B22 and is associated with the short shaft at one end of the reel B21 (the association method is that the shaft of the motor B25 is connected to the short shaft at one end of the reel B21 through a coupling) to drive the reel B21 to rotate, thereby driving the oil pipe wound on the reel B21 to be reeled or released. The oil pipe coiling mechanism is detachably connected to the upper port of the oil pipe through the oil pipe end connection assembly installed on the outer cylindrical surface of the reel B21. The oil pipe end connection assembly includes a quick pipe joint D26, both ends of which can be connected to the pipe. The quick pipe joint D26 is fixedly installed on the outer circumferential surface of the reel B21. The two ends of the quick pipe joint D26 are respectively located outside the reel B21 and in the cavity of the reel B21. The end of the quick pipe joint D26 located outside the reel B21 is used to connect the upper port of the oil pipe 400. The connecting pipe B28 is located in the cavity of the reel B21. One end of the connecting pipe B28 is sealed and fixedly connected to one end of the quick pipe joint D26 located in the cavity of the reel B21, and the other end of the connecting pipe B28 is sealed and fixedly connected to the front channel port of the driven short shaft 27. The rotary joint 29 includes an inner ring split 291 and an outer ring split 292. The inner ring split body 291 is cylindrical, and a blind hole 2911 extending toward the rear end face is provided on the front end face thereof, and an annular groove 2912 arranged along the circumferential direction is provided on the outer circumferential face thereof, and the annular groove 2912 is connected to the blind hole 2911 through a plurality of connecting holes 2913. The outer ring split body 292 is sleeve-shaped, and its seal is rotatably mounted on the inner ring split body 291, and is positioned in the axial direction, and an oil drain hole 2921 connected to its inner hole is provided on its outer circumferential face, and the port of the oil drain hole 2921 facing the outside of the outer ring split body 292 is the outer port, and the port of the oil drain hole 2921 facing the inner hole of the outer ring split body 292 is the inner port.When the outer ring split body 292 is mounted on the inner ring split body 291, the inner port of the oil drain hole 2921 of the outer ring split body 292 faces and communicates with the annular groove 2912 on the inner ring split body 291, and the outer port of the oil drain hole 2921 on the outer ring split body 292 communicates with an external hydraulic station for providing hydraulic power. The front end of the inner ring split body 291 of the rotary joint 29 is sealed and fixedly connected to the rear end of the driven short shaft 27, so that the hydraulic oil passage 271 of the driven short shaft 27 is communicated with the blind hole 2911 of the inner ring split body 291.

[0028] The water-oil pipeline restraint is fixedly installed at intervals outside a water pipe 300 and two oil pipes 400, and is used to limit the two oil pipes 400 on both sides of a water pipe 300, so as to connect the water pipe 300 and the two oil pipes 400 into a flexible pipeline complex. The water-oil pipeline restraint is a rigid node on the flexible pipeline complex. The water-oil pipeline restraint includes a cylindrical restraint body 51. A through water pipe limiting channel 511 and two through oil pipe limiting channels 512 are provided in the middle of the restraint body 51. The two oil pipe limiting channels 512 are symmetrically distributed on both sides of the water pipe limiting channel 511. Three guide wheels C52 are rotatably installed on the outer circumferential surface of the restraint body 51 in an annularly evenly distributed manner and at the same radial section position. The rotating shafts of the three guide wheels C52 are all perpendicular to the axial and radial arrangement of the water pipe limiting channel 511. The restrainer body 51 is formed by splicing and fixing two semi-cylindrical parts, the water pipe limiting channel 511 is formed by splicing the semi-circular grooves on the two semi-cylindrical parts, and the two oil pipe limiting channels 512 are respectively located on the two semi-cylindrical parts. When the water pipe limiting channel 511 embraces the outer wall of the water pipe 300, the water pipe limiting channel 511 forms an interference fit with the water pipe 300, and when the oil pipe 400 is inserted into the oil pipe limiting channel 512, the oil pipe 400 forms an interference fit with the oil pipe limiting channel 512. When the liquid extractor 100 is lifted and moved in the in-situ uranium mine, the three guide wheels C52 in the water-oil pipeline restrainer are in rolling contact with the wall of the in-situ uranium mine at the same time.

[0029] Preferably, the water pipe end connection assembly also includes a guide steel tube 165, which is axially welded between two through holes on the outer cylindrical surface of the drum A11. The guide steel tube 165 is surrounded by a front end locking ring 1621 of the steel wire rope 162. Based on the space occupied by the guide steel tube 165, the front end locking ring 1621 of the steel wire rope 162 is made to adhere to the outer cylindrical surface of the guide steel tube 165 and avoid contact between the steel wire rope 162 and the edge of the through hole of the drum A11 (to avoid stress concentration).

[0030] Preferably, an encoder A for recording the number of rotations is installed on any of the short shafts at both ends of the reel A11 of the water pipe coil mechanism, and the retracted and extended length of the water pipe 300 can be calculated based on the data of the encoder A and the diameter of the reel A11. An encoder B for recording the number of rotations is installed on any of the short shafts at both ends of the reel B21 of the two sets of oil pipe coil mechanisms, and the retracted and extended length of the oil pipe 400 can be calculated based on the data of the encoder B and the diameter of the reel B21.

[0031] Preferably, the positional relationship between one guide wheel A14 and two guide wheels B24 in the three-zone coil device is: the two oil pipes 400 extending downward around the two guide wheels B24 are distributed on both sides of the water pipe 300 extending downward around the guide wheel A14, and the relative position between the two oil pipes 400 and the water pipe 300 here is consistent with the relative position of the two oil pipes 400 and the water pipe 300 defined by the water-oil pipeline restraint.

[0032] Briefly describe the application of the present invention: The method for lowering a deep well liquid extractor is based on the above-mentioned deep well liquid extractor pipeline retracting and releasing assembly, and is used to lower the liquid extractor from outside the in-situ uranium mine to a predetermined depth inside the well.

[0033] The liquid extractor 100 is a liquid extractor mechanism in the authorization announcement number CN116292220B (hydraulic in-situ leaching uranium mine leachate multi-stage piston liquid extractor system). The liquid extractor 100 is cylindrical, and is provided with a water outlet 101 and two oil passages 102 symmetrically arranged around the water outlet 101 on its upper end surface, and at least one water inlet is provided on its outer circumferential surface. The two oil passages 102 are respectively sealed and fixedly connected to the lower ends of the two oil pipes 400, and the water outlet 101 is sealed and fixedly connected to the lower end of the water pipe 300.

[0034] Here’s how: S01, suspension extractor: A. Confirm that the upper end of the water pipe is connected to the rear end of the quick pipe joint C, and the upper ends of the two oil pipes are plugged into the two quick pipe joints D located outside the reel B; B. The motor A in the water pipe coil mechanism starts, driving the reel A to rotate to wind around the water pipe; C. The motors B in the two sets of tubing coiling mechanisms are started simultaneously, driving the two reels B to rotate to wind up the two tubings; D. Through the actions of steps B and C, the liquid extractor is suspended and it is confirmed that the liquid extractor is located directly above the wellhead of the in-situ uranium mine.

[0035] In this step, steps B and C are executed simultaneously to control the rotation speeds of motor A and two motors B so that the winding speeds of the water pipe and the two oil pipes remain consistent.

[0036] S02, install the guide device of the liquid extractor: The liquid extractor guide device is installed on the lower end surface of the liquid extractor, so that in the subsequent steps, when the liquid extractor is lifted and moved in the in-situ uranium mine, the liquid extractor guide device rolls in contact with the wall of the in-situ uranium mine. The liquid extractor guide device includes a plate-like body 31 in the shape of a circular plate. A bolt hole is provided in the middle of the plate-like body 31, and the plate-like body 31 is threadedly connected to the lower end surface of the liquid extractor 100 by inserting a bolt into the bolt hole. Three guide wheels D32 are rotatably installed on the outer circumferential surface of the plate-like body 31, which are evenly distributed in an annular shape and located at the same radial section position. The rotating shafts of the three guide wheels D32 are arranged perpendicular to the axial and radial directions of the plate-like body 31. When the liquid extractor 100 is lifted and moved in the in-situ uranium mine, the three guide wheels D32 in the liquid extractor guide device roll in contact with the wall of the in-situ uranium mine at the same time.

[0037] S03, lowering of water and oil pipeline: A. The motor A in the water pipe coil mechanism starts, driving the reel A to rotate to release the water pipe; B. The two motors B in the two sets of tubing coiling mechanisms are started simultaneously to drive the two reels B to rotate to release the two tubings; C. Through the actions of steps A and B, the liquid extractor is lowered into the well of the in-situ uranium leaching well through the wellhead of the in-situ uranium leaching well; D. Starting from the time when the liquid extractor as a whole enters the wellhead of the in-situ uranium mine, water-oil pipeline restraints are installed on the outside of the water pipe and two oil pipes every 20-60m to avoid interference or entanglement between the water pipe and the oil; when the liquid extractor is lowered to a specific depth in the in-situ uranium mine, the lowering method is completed; In this step, during the lowering process of the liquid extractor, all guide wheels D in the guide device of the liquid extractor are in rolling contact with the wall of the in-situ uranium mine at the same time, and all guide wheels C in the water-oil pipeline restraint are in rolling contact with the wall of the in-situ uranium mine at the same time; In this step, steps A and B are executed simultaneously to control the rotation speed of motor A and the two motors so that the release speed of the water pipe and the two oil pipes is always consistent.

[0038] Preferably, step M is further provided between steps S02-S03; M, water pipe anti-fall protection: prepare a protective rope, and after passing the protective rope around the main frame, the two ends of the protective rope are loosely tied to the water pipe using a double loop knot (sheep's hoof knot), thereby forming an upper and lower knot loop between the protective rope and the water pipe, and the relaxation is defined as the protective rope being in contact with the water pipe without hindering the water pipe from moving upward or downward; if in subsequent steps, the upper port of the water pipe accidentally detaches, the protective rope is automatically tensioned while the water pipe falls rapidly, and the friction between the two knot loops and the outer wall of the water pipe locks the water pipe to prevent it from falling.

[0039] In this step, the area of ​​the inner region of the loop is 1.3-1.8 times the radial cross-sectional area of ​​the protective rope. If it is less than 1.3 times, it will cause the water pipe to move up or down poorly. If it is greater than 1.8 times, it will be difficult to lock the water pipe when it falls rapidly.

Claims

1. A deep well liquid extractor pipe retractable assembly, comprising a water pipe and two oil pipes; its characteristics are: It also includes a three-zone coil device; the three-zone coil device includes a main frame, a water pipe coil mechanism and an oil pipe coil mechanism; the main frame is arranged on the ground outside the in-situ uranium mine, the water pipe coil mechanism and the oil pipe coil mechanism are both installed on the main frame, the number of the oil pipe coil mechanisms is two sets, the two sets of oil pipe coil mechanisms are distributed on both sides of the water pipe coil mechanism, the water pipe coil mechanism is detachably connected to the upper port of the water pipe, and the two sets of oil pipe coil mechanisms are detachably connected to the upper ports of the two oil pipes respectively.

2. The deep well liquid extractor pipeline retractable assembly according to claim 1, characterized in that: The water pipe coil mechanism comprises a reel A, a support A, a wheel seat A, a guide wheel A and a motor A; a cavity is provided inside the reel A, and two through holes connected to the cavity are provided on the outer circumference of the reel A, and the two through holes are arranged at intervals along the circumference of the reel A, the reel A is horizontally rotatably mounted on the support A, the support A is fixedly mounted on the main frame, the wheel seat A is vertically rotatably mounted on the main frame and is located obliquely above the reel A, the guide wheel A is horizontally rotatably mounted on the wheel seat A, the motor A is fixedly mounted on the support A and is associated with the reel A to drive the reel A to rotate, thereby driving the water pipe wound on the reel A to be retracted or released; the water pipe coil mechanism is detachably connected to the upper port of the water pipe through a water pipe end connection assembly mounted on the outer circumference of the reel A; The water pipe end connection assembly includes a lifting ring, a wire rope, a locking buckle and a quick pipe joint C; the lifting ring includes a ring hole portion and a screw portion fixedly connected to each other; the wire rope is arranged in the cavity of the drum A, and the front and rear ends of the wire rope respectively pass through two through holes on the drum A and are located outside the drum A, the front end of the wire rope passes through the through hole of the drum A to form a free end, and the rear end of the wire rope passes through the ring hole portion of the lifting ring to form a free end; there are two locking buckles, one of which is fixedly installed on the front end of the wire rope Between the wire rope body, another lock buckle is fixedly installed between the rear end head of the wire rope and the wire rope body, so that a front end locking ring relatively close to the drum A and a rear end locking ring relatively far away from the drum A are formed at the front end and the rear end of the wire rope respectively; the wire rope is the wire rope body except for the front end locking ring and the rear end locking ring, and the length of the wire rope body is more than twice the circumference of the outer circular surface of the drum A; the front end of the quick pipe connector C is threadedly connected to the screw part of the lifting ring, and the rear end is used for detachable connection with the upper port of the water pipe.

3. The deep well liquid extractor pipeline retractable assembly according to claim 2, characterized in that: The tubing coil mechanism includes a drum B, a support B, a wheel seat B, a guide wheel B, a motor B, a connecting pipe B and a rotary joint; a cavity is provided inside the drum B, and the drum B is horizontally rotatably mounted on two supports B through short shafts at both ends. The two short shafts at both ends of the drum B are defined as the power short shaft associated with the motor B, and the other short shaft is defined as the driven short shaft; the end of the driven short shaft connected to the drum B is defined as the front end, and the end of the driven short shaft away from the drum B is defined as the rear end. The driven short shaft is provided with a hydraulic oil circuit channel that runs through the front and rear end surfaces thereof, and the hydraulic oil circuit channel is divided into A front channel opening and a rear channel opening are formed respectively, the front channel opening is open in the cavity of the reel B, and the rear channel opening is located outside the reel B; the support B is fixedly mounted on the main frame; the wheel seat B is fixedly mounted on the main frame and is located obliquely above the reel B; the guide wheel B is horizontally rotatably mounted on the wheel seat B; the motor B is fixedly mounted on the support B and is associated with the short shaft at one end of the reel B to drive the reel B to rotate, thereby driving the oil pipe wound on the reel B to be reeled in or released; the oil pipe coiling mechanism is detachably connected to the upper end of the oil pipe through the oil pipe end connection assembly mounted on the outer circumference of the reel B; The oil pipe end connection assembly includes a quick pipe joint D, both ends of which can be connected to pipes. The quick pipe joint D is fixedly installed on the outer cylindrical surface of the reel B, and the two ends of the quick pipe joint D are respectively located outside the reel B and in the cavity of the reel B. The end of the quick pipe joint D located outside the reel B is used to connect the upper port of the oil pipe; the connecting pipe B is located in the cavity of the reel B, one end of the connecting pipe B is sealed and fixedly connected to the end of the quick pipe joint D located in the cavity of the reel B, and the other end of the connecting pipe B is sealed and fixedly connected to the front channel port of the driven short shaft; the rotary joint includes an inner ring split and an outer ring split; the inner ring split is cylindrical, and a blind hole extending to the rear end face is provided on its front end face, and an annular groove arranged along the circumferential direction is provided on its outer cylindrical surface. The annular groove is connected to the blind hole through several connecting holes; the outer ring split is in the shape of a sleeve, and its seal is rotatably installed on the inner ring split and is positioned in the axial direction. An oil drain hole connected to its inner hole is provided on its outer circular surface, and the port of the oil drain hole facing the outside of the outer ring split is the outer port, and the port of the oil drain hole facing the inner hole of the outer ring split is the inner port; when the outer ring split is sleeved on the inner ring split, the inner port of the oil drain hole of the outer ring split is opposite to and connected to the annular groove on the inner ring split, and the outer port of the oil drain hole on the outer ring split is connected to an external hydraulic station for providing hydraulic power; the front end seal of the inner ring split of the rotary joint is fixedly connected to the rear end of the driven short shaft, so that the hydraulic oil circuit channel of the driven short shaft is connected to the blind hole of the inner ring split.

4. The deep well liquid extractor pipeline retractable assembly according to claim 3, characterized in that: The water pipe end connection assembly also includes a guide steel pipe; the guide steel pipe is axially welded between two through holes on the outer cylindrical surface of the drum A, and the guide steel pipe is surrounded by the front end locking ring of the steel wire rope. Based on the space occupied by the guide steel pipe, the front end locking ring of the steel wire is made to cover the outer cylindrical surface of the guide steel pipe and prevent the steel wire rope from contacting the edge of the through hole of the drum A.

5. The deep well liquid extractor pipeline retractable assembly according to claim 4, characterized in that: An encoder A for recording the number of rotations is installed on any short shaft at both ends of the reel A of the water pipe coil mechanism, and an encoder B for recording the number of rotations is installed on any short shaft at both ends of the reel B of the two sets of oil pipe coil mechanisms.

6. The deep well liquid extractor pipeline retractable assembly according to claim 5, characterized in that: The deep well liquid extractor pipeline retraction and extension assembly also includes a water-oil pipeline restraint; the water-oil pipeline restraint is fixedly installed at intervals on the outside of a water pipe and two oil pipes, and is used to confine the two oil pipes on both sides of a water pipe, thereby connecting a water pipe and two oil pipes into a flexible pipeline complex. The water-oil pipeline restraint is a rigid node on the flexible pipeline complex.

7. The deep well liquid extractor pipeline retractable assembly according to claim 1, characterized in that: The water-oil pipeline restraint includes a cylindrical restraint body, a through water pipe limiting channel and two through oil pipe limiting channels are arranged in the middle of the restraint body, and the two oil pipe limiting channels are symmetrically distributed on both sides of the water pipe limiting channel. Three guide wheels C are rotatably installed on the outer circumferential surface of the restraint body in an annular shape and at the same radial section position, and the rotating shafts of the three guide wheels C are perpendicular to the axial and radial arrangement of the water pipe limiting channel; the restraint body is composed of two semi-cylindrical parts spliced ​​and fixedly connected The water pipe limiting channel is formed by splicing the semicircular grooves on the two semi-cylindrical parts, and the two oil pipe limiting channels are respectively located on the two semi-cylindrical parts; when the water pipe limiting channel embraces the outer wall of the water pipe, the water pipe limiting channel and the water pipe form an interference fit, and when the oil pipe is stuck in the oil pipe limiting channel, the oil pipe and the oil pipe limiting channel form an interference fit; when the liquid lifter moves up and down in the in-situ uranium mine, the three guide wheels C in the water-oil pipeline restraint are in rolling contact with the wall of the in-situ uranium mine at the same time.

8. A method for lowering a deep well liquid extractor, based on the deep well liquid extractor pipeline retracting and releasing assembly according to claim 7, used to lower the liquid extractor from outside the well of an in-situ leaching uranium mine to a predetermined depth inside the well; The liquid extractor is cylindrical, with a water outlet and two oil ports symmetrically arranged around the water outlet on its upper end surface, and at least one water inlet on its outer circumferential surface. The two oil ports are respectively sealed and fixedly connected to the lower ends of the two oil pipes, and the water outlet is sealed and fixedly connected to the lower end of the water pipe; Its characteristics are: Here’s how: S01, suspension extractor: A. Confirm that the upper end of the water pipe is connected to the rear end of the quick pipe joint C, and the upper ends of the two oil pipes are plugged into the two quick pipe joints D located outside the reel B; B. The motor A in the water pipe coil mechanism starts, driving the reel A to rotate to wind around the water pipe; C. The motors B in the two sets of tubing coiling mechanisms are started simultaneously, driving the two reels B to rotate to wind up the two tubings; D. Through the actions of steps B and C, the liquid extractor is suspended and it is confirmed that the liquid extractor is located directly above the wellhead of the in-situ leaching uranium mine; In this step, steps B and C are executed simultaneously to control the rotation speed of motor A and two motors B so that the winding speed of the water pipe and the two oil pipes is always consistent; S02, install the guide device of the liquid extractor: The liquid extractor guide device is installed on the lower end surface of the liquid extractor, so that in the subsequent steps, when the liquid extractor is lifted and moved in the in-situ uranium mine, the liquid extractor guide device rolls in contact with the wall of the in-situ uranium mine; the liquid extractor guide device includes a plate-like main body in the shape of a circular plate, a bolt hole is provided in the middle of the plate-like main body, the plate-like main body is threadedly connected to the lower end surface of the liquid extractor through bolts inserted into the bolt holes, and three guide wheels D are rotatably installed on the outer circumferential surface of the plate-like main body in a circular shape and at the same radial section position, and the rotating shafts of the three guide wheels D are perpendicular to the axial and radial arrangement of the plate-like main body; when the liquid extractor moves in the in-situ uranium mine, the three guide wheels D in the liquid extractor guide device roll in contact with the wall of the in-situ uranium mine at the same time; S03, lowering of water and oil pipeline: A. The motor A in the water pipe coil mechanism starts, driving the reel A to rotate to release the water pipe; B. The two motors B in the two sets of tubing coiling mechanisms are started simultaneously to drive the two reels B to rotate to release the two tubings; C. Through the actions of steps A and B, the liquid extractor is lowered into the well of the in-situ uranium leaching well through the wellhead of the in-situ uranium leaching well; D. Starting from the time when the liquid extractor as a whole enters the wellhead of the in-situ uranium mine, water-oil pipeline restraints are installed on the outside of the water pipe and two oil pipes every 20-60m to avoid interference or entanglement between the water pipe and the oil; when the liquid extractor is lowered to a specific depth in the in-situ uranium mine, the lowering method is completed; In this step, during the lowering process of the liquid extractor, all guide wheels D in the guide device of the liquid extractor are in rolling contact with the wall of the in-situ uranium mine at the same time, and all guide wheels C in the water-oil pipeline restraint are in rolling contact with the wall of the in-situ uranium mine at the same time; In this step, steps A and B are executed simultaneously to control the rotation speed of motor A and the two motors so that the release speed of the water pipe and the two oil pipes is always consistent.

9. The method for lowering a deep well liquid extractor according to claim 8, wherein: It also includes an M step between steps S02-S03; M, water pipe anti-fall protection: prepare a protective rope, and after the protective rope is passed around the main frame, the two ends of the protective rope are loosely tied to the water pipe using a double loop knot (sheep's hoof knot) to form an upper and lower knot loop between the protective rope and the water pipe, and the relaxation is defined as the protective rope contacting the water pipe without hindering the water pipe from moving upward or downward; if in the subsequent steps, the upper end of the water pipe accidentally detaches, the protective rope is automatically tensioned while the water pipe falls rapidly, and the friction between the two knot loops and the outer wall of the water pipe locks the water pipe to prevent it from falling.

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