An in-mine equipment lifting device and method for in-situ leaching uranium mines

Abstract

The present invention provides a lifting device and method for in-well equipment in an in-situ leaching uranium mine, which can achieve high and low lifting, and at the same time provide power for the winch. By increasing the width of the winch and reducing its height, the storage capacity of the winch is increased. Meanwhile, through the guide wheels and the lead frame, the pipeline is ensured to be wound around the winch in an orderly manner. It solves the problems that the in-well equipment lifting device has a too high center of gravity, resulting in poor passability and inability to carry out in-well equipment lifting operations in complex terrains, improves the in-well equipment lifting efficiency, and reduces the labor intensity of personnel.

Description

Technical Field

[0001] The invention belongs to the field of in-situ leaching uranium mining well site process borehole well equipment maintenance, and particularly relates to a lifting device and method for well equipment in a uranium in-situ leaching mine. Background Art

[0002] The well equipment lifting technology is one of the core technologies of the well site process for CO2+O2 in-situ leaching uranium mining. The well pipes, well cables and multistage submersible pumps in the well are lifted out through the well equipment lifting device. After being repaired by maintenance personnel, the liquid extraction well pipes, well cables and multistage submersible pumps are then lowered into the borehole through the well equipment lifting device. The uranium-containing solution is collected in the centralized control room through the submersible pump, well pipes and surface pipes.

[0003] During the production operation process, some well equipment in the liquid extraction boreholes have problems such as submersible pump failures and cable failures during use. As a result, the liquid extraction boreholes cannot operate normally. When overhauling, the well equipment needs to be lifted out. The currently used lifting devices mainly have the following problems: 1) The lifting device cannot completely lift the 1900-2500mm multistage submersible pump out of the well, and manual lifting of the multistage submersible pump requires a large labor intensity for personnel; 2) The center of gravity of the lifting device is relatively high, and rapid equipment transfer cannot be achieved.

[0004] In order to reduce the labor intensity of personnel and improve the equipment transfer and lifting efficiency, a lifting device and method for well equipment in a uranium in-situ leaching mine are invented. Summary of the Invention

[0005] The purpose of the invention is to provide a lifting device for well equipment in a uranium in-situ leaching mine. Through a hydraulic device, high and low lifting is realized, and at the same time, power is provided for the winch. By increasing the width of the winch, the height of the winch is reduced, and the storage capacity of the winch is increased. At the same time, through a guide wheel and a lead frame, the pipeline is ensured to be wound on the winch in an orderly manner. It solves the problems that the center of gravity of the well equipment lifting device is too high, resulting in poor passability and inability to carry out well equipment lifting operations in complex terrains, improves the well equipment lifting efficiency, and reduces the labor intensity of personnel.

[0006] The technical solution of the invention is as follows: A lifting device for well equipment in a uranium in-situ leaching mine, which includes a vehicle frame, a power device, a lifting device and a storage device;

[0007] The power device includes a hydraulic pump, a transmission shaft, an oil tank, a speed reducer and a speed reducer controller; the transmission shaft is connected to the output end of the speed reducer; the speed reducer controller, the hydraulic pump and the oil tank are installed on the vehicle frame, and the speed reducer and the transmission shaft are installed on a support; the speed reducer 14 is driven to rotate through the hydraulic pump and the speed reducer controller, and then the transmission shaft is driven to rotate through the speed reducer;

[0008] The lifting device described above includes a lifting arm, an outer arm, an inner arm, a fixing device, an inner arm controller, and a lifting controller; the lower end of the outer arm is connected to the upper end of the fixing device; the upper end of the lifting arm is connected to the outer arm and the lower end is connected to the lower end of the fixing device; the inner arm is installed inside the outer arm.

[0009] The storage device described above includes a guide wheel, a lead screw frame, a winch, a bracket, and a towing rope; the guide wheel is installed at the front end of the inner arm, the lead screw frame and the bracket are installed on the vehicle frame, one end of the towing rope is fixed to the winch, and after passing through the lead screw frame and the guide wheel in sequence, it is placed vertically on the ground naturally, and the winch is installed at the top of the bracket and connected to the transmission shaft.

[0010] The fuel tank, the hydraulic pump, and the reducer controller are connected end to end in sequence.

[0011] The fuel tank, the hydraulic pump, the lifting controller, and the lifting arm are connected end to end in sequence.

[0012] The fuel tank, the hydraulic pump, the telescopic controller, and the inner arm are connected end to end in sequence.

[0013] The lifting and lowering of the lifting arm are controlled by the hydraulic pump and the lifting controller.

[0014] The telescoping of the inner arm is controlled by the hydraulic pump and the inner arm controller.

[0015] A method for lifting in-well equipment in a uranium in-situ leaching mine includes the following steps:

[0016] Step 1: Drag the entire lifting device to an abnormal borehole.

[0017] Step 2: Start the hydraulic pump, adjust the lifting controller, control the lifting of the lifting arm to drive the arm fixing device to lift, and at the same time adjust the telescopic controller, control the telescoping of the inner arm, and adjust the position of the guide wheel; turn off the lifting controller and the telescopic controller.

[0018] Step 3: Connect the top of the in-well equipment to be lifted to the towing rope.

[0019] Step 4: Adjust the reducer controller to control the rotation of the reducer, the reducer drives the transmission shaft to rotate, the transmission shaft drives the winch to rotate, the winch drives the towing rope and the lead screw frame, and connects the upper end of the in-well device to the winch.

[0020] Step 5: Complete the repair of the in-well equipment.

[0021] Step 6: Adjust the reducer controller to drive the winch to rotate in the reverse direction, the winch drives the lead screw frame to rotate, and disconnect the towing rope.

[0022] A method for lifting liftable in-well equipment in a uranium in-situ leaching mine. In step 2, when the center of the guide wheel reaches 2900 - 3500 mm, turn off the lifting controller and the telescopic controller.

[0023] In step 3, connect the top of the Φ63*8 polyethylene pipe at the top of the downhole equipment to be lifted to the towing rope.

[0024] It further includes step 7: adjust the lifting controller and the telescopic controller to control the lifting arm and the inner arm 9 to return to the zero position.

[0025] The remarkable effects of the present invention are as follows:

[0026] ⑴ The present invention improves the volume ratio of the winch by increasing the width of the winch.

[0027] ⑵ The present invention winds the downhole pipe around the winch in an orderly manner through the lead frame, avoiding the chaotic winding of the downhole pipe in a pile.

[0028] ⑶ The present invention adjusts the height through the hydraulic device, increases the height of the equipment during the lifting process, can completely lift the submersible pump out of the well, avoids the need for workers to lift the submersible pump out of the well, and reduces the labor intensity.

[0029] ⑷ The present invention adjusts the height through the hydraulic device, can increase the height when lifting the downhole equipment, and decreases the height during the movement of the equipment to lower the center of gravity, avoiding the instability phenomenon caused by too high a center of gravity of the equipment during the movement.

[0030] ⑸ The present invention uses a hydraulic pump to provide power instead of an electric motor to provide power, effectively reducing the labor intensity of personnel and avoiding potential safety hazards during the process of connecting and using electricity. Description of the Drawings

[0031] Figure 1 The front view of a device for lifting downhole equipment in an in-situ leaching uranium mining mine according to the present invention:

[0032] Figure 2 The right view of a device for lifting downhole equipment in an in-situ leaching uranium mining mine according to the present invention:

[0033] In the figure: 1 guide wheel; 2 reducer controller; 3 lifting controller; 4 telescopic controller; 5 hydraulic pump; 6 fixing device; 7 inner arm; 8 lifting arm; 9 outer arm; 10 lead frame; 11 towing rope; 12 winch; 13 transmission shaft; 14 reducer; 15 bracket; 16 vehicle frame; 17 fuel tank. Detailed Embodiment

[0034] The following elaborates on the preferred embodiments of the present invention in conjunction with the drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0035] A device for lifting downhole equipment in an in-situ leaching uranium mining mine includes a vehicle frame 16, a power device, a lifting device, and a storage device.

[0036] The described power device includes a hydraulic pump 5, a transmission shaft 13, a fuel tank 17, a speed reducer 14, and a speed reducer controller 2; the fuel tank 17, the hydraulic pump 5, and the speed reducer controller 2 are connected end to end in sequence, and the transmission shaft 13 is connected to the output end of the speed reducer 14; the speed reducer controller 2, the hydraulic pump 5, and the fuel tank 17 are installed on the vehicle frame 16, and the speed reducer 14 and the transmission shaft 13 are installed on the support 15; the hydraulic pump 5 and the speed reducer controller 2 drive the speed reducer 14 to rotate, and then the speed reducer 14 drives the transmission shaft 13 to rotate;

[0037] The described lifting device includes a lifting arm 8, an outer arm 9, an inner arm 7, a fixing device 6, an inner arm controller 4, and a lifting controller 3; the fuel tank 17, the hydraulic pump 5, the lifting controller 3, and the lifting arm 8 are connected end to end in sequence; the fuel tank 17, the hydraulic pump 5, the telescopic controller 4, and the inner arm 7 are connected end to end in sequence; the lower end of the outer arm 9 is connected to the upper end of the fixing device 6; the upper end of the lifting arm 8 is connected to the outer arm 9 and the lower end is connected to the lower end of the fixing device 6; the inner arm 7 is installed inside the outer arm 9, and the lifting of the lifting arm 8 is controlled by the hydraulic pump 5 and the lifting controller 3, and the telescopic movement of the inner arm 7 is controlled by the hydraulic pump 5 and the inner arm controller;

[0038] The described storage device includes a guide wheel 1, a lead frame 10, a winch 12, a support 15, and a towing rope 11; the guide wheel 1 is installed at the front end of the inner arm 7, the lead frame 10 and the support 15 are installed on the vehicle frame 16, one end of the towing rope is fixed to the winch and passes through the lead frame 10 and the guide wheel 1 in sequence and then lies naturally perpendicular to the ground, and the winch 12 is installed at the top of the support 16 and is connected to the transmission shaft 13.

[0039] A method for lifting liftable in-well equipment in an in-situ leaching uranium mine, applicable to in-situ leaching uranium mines, includes the following steps:

[0040] Step 1: Drag the liftable in-well equipment lifting device to an abnormal borehole;

[0041] Step 2: Start the hydraulic pump 5, adjust the lifting controller 3, control the lifting of the lifting arm 8 to drive the arm fixing device 6 to lift, and at the same time adjust the telescopic controller 4 to control the telescopic movement of the inner arm 7, and adjust the position of the universal wheel 1. Wait until the center of the guide wheel 1 reaches 2900 mm and then turn off the lifting controller 3 and the telescopic controller 4;

[0042] Step 3: Connect the top of the Φ63*8 polyethylene pipe at the top of the in-well device to the towing rope 11;

[0043] Step 4: Adjust the reducer controller 2 to control the rotation of the reducer 14. The reducer 14 drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the winch 12 to rotate, and the winch 12 drives the towing rope 11 and the lead screw frame 10 to wind the 180m long Φ63*8 polyethylene pipe at the upper end of the well device onto the winch 12 in an orderly manner; and lift the 2800mm submersible pump out of the wellhead.

[0044] Step 5: Complete the repair of the equipment in the well.

[0045] Step 6: Adjust the reducer controller 2 to drive the winch 12 to rotate in the reverse direction. The winch 12 drives the lead screw frame 10 to rotate, lower the 180m long Φ63*8 polyethylene pipe and the submersible pump into the well, and disconnect the towing rope 11 from the pipe in the well.

[0046] Step 7: Adjust the lifting controller 3 and the telescopic controller 4 to control the lifting arm 9 and the inner arm 9 to return to the zero position.

[0047] A method for lifting liftable in-well equipment in an in-situ leaching uranium mine, applicable to in-situ leaching uranium mines, includes the following steps:

[0048] Step 1: Drag the liftable in-well equipment lifting device to the abnormal borehole.

[0049] Step 2: Start the hydraulic pump 5, adjust the lifting controller 3, control the lifting of the lifting arm 8 to drive the arm fixing device 6 to lift. At the same time, adjust the telescopic controller 4, control the telescopic of the inner arm 7, and adjust the position of the universal wheel 1. Wait until the center of the universal wheel 1 reaches 3500mm and then turn off the lifting controller 3 and the telescopic controller 4.

[0050] Step 3: Connect the top of the Φ63*8 polyethylene pipe at the top of the in-well device to the towing rope 11.

[0051] Step 4: Adjust the reducer controller 2 to control the rotation of the reducer 14. The reducer drives the transmission shaft 13 to rotate, the transmission shaft 13 drives the winch 12 to rotate, and the winch 12 drives the towing rope 11 and the lead screw frame 10 to wind the 180m long Φ63*8 polyethylene pipe at the upper end of the in-well device onto the winch 12 in an orderly manner; and lift the 3400mm submersible pump out of the wellhead.

[0052] Step 5: Complete the repair of the equipment in the well.

[0053] Step 6: Adjust the reducer controller 2 to drive the winch 12 to rotate in the reverse direction. The winch 12 drives the lead screw frame 10 to rotate, lower the 180m long Φ63*8 polyethylene pipe and the submersible pump into the well, and disconnect the towing rope 11 from the pipe in the well.

[0054] Step 7: Adjust the lifting controller 3 and the telescopic controller 4 to control the lifting arm 9 and the inner arm 9 to return to the zero position.

Claims

1. An in-situ leaching uranium mine shaft equipment hoisting device, characterized in that: It includes a frame (16), a power device, a lifting device and a storage device; The power device includes a hydraulic pump (5), a transmission shaft (13), a fuel tank (17), a speed reducer (14), and a speed reducer controller (2); the transmission shaft (13) is connected to the output end of the speed reducer (14); the speed reducer controller (2), the hydraulic pump (5), and the fuel tank (17) are installed on the frame (16), and the speed reducer (14) and the transmission shaft (13) are installed on the bracket (15); the hydraulic pump (5) and the speed reducer controller (2) drive the speed reducer (14) to rotate, and then the speed reducer (14) drives the transmission shaft (13) to rotate; The lifting device includes a lifting arm (8), an outer arm (9), an inner arm (7), a fixing device (6), a telescopic controller (4), and a lifting controller (3); the lower end of the outer arm (9) is connected to the upper end of the fixing device (6); the upper end of the lifting arm (8) is connected to the outer arm (9), and the lower end is connected to the lower end of the fixing device (6); the inner arm (7) is installed inside the outer arm (9); The storage device includes a guide wheel (1), a lead frame (10), a winch (12), a bracket (15), and a tow rope (11); the guide wheel (1) is installed at the front end of the inner arm (7), the lead frame (10) and the bracket (15) are installed on the frame (16), one end of the tow rope (11) is fixed to the winch (12), and after passing through the lead frame (10) and the guide wheel (1) in sequence, it is placed vertically on the ground naturally, and the winch (12) is installed at the top of the bracket (15) and is connected to the transmission shaft (13).

2. The hoisting device for in-well equipment in an in-situ leaching uranium mine according to claim 1, characterized in that: The fuel tank (17), the hydraulic pump (5), and the speed reducer controller (2) are connected end to end in sequence.

3. A lifting device for in-well equipment in an in-situ leaching uranium mine according to claim 1, characterized in that: The fuel tank (17), the hydraulic pump (5), the lifting controller (3), and the lifting arm (8) are connected end to end in sequence.

4. A hoisting device for in-well equipment in an in-situ leaching uranium mine according to claim 3, characterized in that: The fuel tank (17), the hydraulic pump (5), the telescopic controller (4), and the inner arm (7) are connected end to end in sequence.

5. A device for lifting in-well equipment in an in-situ leaching uranium mine according to claim 4, characterized in that: The lifting of the lifting arm (8) is controlled by the hydraulic pump (5) and the lifting controller (3).

6. The lifting device for in-well equipment in an in-situ leaching uranium mine according to claim 4, characterized in that: The telescopic movement of the inner arm (7) is controlled by the hydraulic pump (5) and the inner arm controller.

7. A method for applying the in-well equipment lifting device for in-situ leaching uranium mines as described in claim 1, characterized in that: It includes the following steps: Step 1: Drag the entire device lifting device to the abnormal drilling hole; Step 2: Start the hydraulic pump (5), adjust the lifting controller (3), control the lifting of the lifting arm (8) to drive the arm fixing device (6) to lift, and at the same time adjust the telescopic controller (4) to control the telescopic movement of the inner arm (7) and adjust the position of the guide wheel (1); turn off the lifting controller (3) and the telescopic controller (4); Step 3: Connect the top of the well equipment to be lifted to the tow rope (11); Step 4: Adjust the speed reducer controller (2) to control the rotation of the speed reducer (14), the speed reducer (14) drives the transmission shaft (13) to rotate, the transmission shaft (13) drives the winch (12) to rotate, the winch (12) drives the tow rope (11) and the lead frame (10), and connect the upper end of the well device to the winch (12); Step 5: Complete the repair of the well equipment; Step 6: Adjust the speed reducer controller (2) to drive the winch (12) to rotate in the reverse direction. The winch (12) drives the lead screw frame (10) to rotate, disconnecting the traction rope (11).

8. The method according to claim 7, characterized in that: In step 2, when the center of the guide pulley (1) reaches 2900 - 3500 mm, turn off the lifting controller (3) and the telescopic controller (4).

9. The method according to claim 7, wherein: In step 3, connect the top of the Φ63*8 polyethylene pipe at the top of the equipment in the well to be lifted to the traction rope (11).

10. The method according to claim 7, wherein: It also includes step 7: Adjust the lifting controller (3) and the telescopic controller (4) to control the lifting arm (8) and the inner arm (7) to return to the zero position.

Images