A method for replacing the guide rope of a mine hoisting system

Abstract

The present invention discloses a method for replacing the guide rope of a mine hoisting system, which includes steps such as disconnecting the connection between the hoisting container and the old guide rope, breaking the bottom end of the old guide rope, breaking the top end of the old guide rope, recovering the old guide rope, lowering the new guide rope, installing the bottom end of the new guide rope, installing the top end of the new guide rope, replacing other old guide ropes, inspecting the rope and resuming hoisting, etc. The method for replacing the guide rope of the mine hoisting system uses a guide rope replacement vehicle arranged at the wellhead to replace the guide rope. By using the guide rope replacement vehicle to recover the old guide rope and lower the new guide rope, it can avoid the problem that the traditional method of using a steady winch to replace the guide rope is prone to damage the guide rope during the winding process or the lowering process when the new guide rope is unevenly wound. It can also avoid the problem that the traditional method of recovering the old guide rope underground has a great operation difficulty and high working intensity. It can improve the rope replacement efficiency on the premise of ensuring safe rope replacement and is especially suitable for the replacement of mine guide ropes.

Description

Technical Field

[0001] The present invention relates to a method for replacing the steel wire rope of a mine hoisting system, specifically a method applicable to replacing the guide rope of a mine hoisting system, and belongs to the technical field of mine equipment maintenance. Background Technique

[0002] A mine hoist refers to the main transportation equipment connecting the underground and the ground in mining engineering. The mine hoist is installed on the ground and is a hoisting machine that drives the hoisting container to run along the shaft or ramp with the help of a steel wire rope, and is widely used in vertical and inclined shaft hoisting of coal, ore, gangue, as well as lifting personnel, lowering materials, tools and equipment, etc. The commonly used mine hoist forms in China are mainly single-rope winding type and multi-rope friction type.

[0003] In a mine hoist system, the guide rope serves as the guide rail for the hoisting container to run. Its function is to eliminate the lateral swing during the operation of the hoisting container, ensure the high-speed and safe operation of the hoisting container, and prevent the hoisting container from falling. According to the different guide rope structures, it is divided into two types: rigid equipment (rigid guide rope) and flexible equipment (steel wire rope guide rope). The steel wire rope guide rope uses a steel wire rope as the guide rope for the hoisting container to run. The two ends of the guide rope are fixed and tightened with special devices at the top and bottom of the well, and there is no need to set guide rope beams in the shaft. The steel wire rope guide rope mainly includes: anti-collision steel wire rope, guide rope and fixed tightening device, guiding device on the hoisting container, rigid guide rope at the horizontal levels of the wellhead and the bottom of the well for vehicle entry and exit, and the steadying device at the intermediate level, etc. The guide rope should have high rigidity, good wear resistance and strong corrosion resistance according to its usage location and technical conditions requirements. Generally, semi-sealed or sealed steel wire ropes are selected. Such steel wire ropes have thicker outer layer wires, good wear resistance and large stiffness. In China, most of the vertical shaft hoisting guide ropes in small and medium-sized mines adopt steel wire rope guide ropes, which have the advantages of less investment, quick results, simple maintenance, stable operation and convenient replacement. However, the guide rope wears faster at the loading points at the top and bottom of the well. Therefore, the guide rope needs to be regularly maintained and replaced. The maintenance amount of the steel wire rope guide rope is large and it must be inspected once a day. When the wear amount of the outer layer wire thickness of the sealed steel wire rope reaches 50%, or the total gap between the guide rope and the sliding sleeve exceeds 15 mm, it must be replaced. The replacement of the guide rope is one of the important tasks in the mine shutdown for maintenance.

[0004] In the prior art, the replacement method of the guide rope is usually to connect the new guide rope with the old guide rope and then directly lower the new guide rope by a winder while recovering the old guide rope in the shaft roadway at the bottom of the well. Since the guide rope is generally made of semi-sealed or sealed steel wire rope, the guide rope has the characteristics of large density coefficient, smooth and sealed surface, and very poor flexibility. Moreover, the outer surface of the guide rope is usually coated with grease, and the whole guide rope is similar to a round rod and cannot be bent at a small radius. A rope pulley or a drum with a larger diameter is required. The ratio of the diameter of the rope pulley or drum to the rope diameter of the guide rope generally should reach 165:1. Therefore, for this traditional guide rope replacement method, on the one hand, the new guide rope needs to be rewound on a winder with a drum of a larger diameter first, which not only takes a long time for the preliminary preparation work and consumes a large amount of materials, but also is likely to cause damage to the guide rope during the winding process or the lowering process in case of uneven winding; on the other hand, the process is complicated and requires a large number of personnel; on the third hand, in the later stage, the old guide rope in the shaft roadway needs to be recovered to the wellhead. Due to the small space in the shaft roadway, the old guide rope usually needs to be cut into small sections before being hoisted to the wellhead, and the operation difficulty and work intensity are both very large. Summary of the Invention

[0005] Aiming at the problems existing in the above prior art, the present invention provides a method for replacing the guide rope of a mine hoisting system, which can improve the rope replacement efficiency on the premise of ensuring safe rope replacement and is particularly suitable for the replacement of the guide rope of a mine.

[0006] In order to achieve the above object, the method for replacing the guide rope of the present mine hoisting system specifically includes the following steps:

[0007] Stp1. Disconnect the connection between the hoisting container and the old guide rope: Hoist the hoisting container and position it at the set rope replacement position above the wellhead, build a working platform on the wellhead, sequentially remove the upper guide sleeve and the lower guide sleeve connecting the old guide rope and the hoisting container, and after the disassembly is completed, control the hoisting container to move upward to the set docking position above the wellhead to make way for the wellhead position, so as to facilitate the subsequent arrangement of the guide rope replacement vehicle at the wellhead;

[0008] Stp2. Break the bottom end of the old guide rope: Build a working platform in the shaft corresponding to the bottom of the guide rope, slack the old guide rope and then connect the lower locking device to the underground winder located in the shaft roadway. Cut the old guide rope above the lower locking device and then lower the lower locking device to the bottom of the well by the underground winder. Remove the lower locking device at the bottom of the well for recovery and remove the positioning sleeve;

[0009] Stp3. Breaking at the top of the old cage guide rope: Use a rope gripper or a plate clamp to tighten the cage guide rope on the working platform above the wellhead. Pull up the rope gripper or the plate clamp and confirm that the old cage guide rope above the rope gripper or the plate clamp is in a slack state. The upstairs winch on the derrick above the wellhead releases the steel wire rope and fixedly connects it to the cage guide rope through a rope clamp below the floor where the rope gripper or the plate clamp tightens the cage guide rope. Bind the old cage guide rope with iron wire above the position where the rope gripper or the plate clamp tightens the cage guide rope to prevent the end of the old cage guide rope from becoming loose after cutting the old cage guide rope. Then cut the old cage guide rope above the binding position. Then control the upstairs winch to release the steel wire rope to lower the end of the old cage guide rope to the wellhead position and remove the rope clamp.

[0010] Stp4. Recycling the old cage guide rope: Arrange a cage guide rope rope-changing cart and an old cage guide rope winch at the wellhead. Feed the end of the old cage guide rope into the cage guide rope rope-changing cart through a guide pulley. Start the cage guide rope rope-changing cart to slowly recycle the old cage guide rope and position the end of the old cage guide rope passing through the cage guide rope rope-changing cart on the old cage guide rope winch. Wind and recycle the old cage guide rope through the old cage guide rope winch. Stop the cage guide rope rope-changing cart and the old cage guide rope winch and remove the rope gripper or the plate clamp when the position where the rope gripper or the plate clamp tightens the cage guide rope approaches the cage guide rope rope-changing cart. Then start the cage guide rope rope-changing cart and the old cage guide rope winch again and recycle the old cage guide rope at the normal speed until the old cage guide rope is completely wound on the old cage guide rope winch for the complete recycling of the old cage guide rope.

[0011] Stp5. Lowering the new cage guide rope: Arrange a new cage guide rope winch with a new cage guide rope reel installed at the wellhead. Introduce the end of the new cage guide rope into the shaft through the cage guide rope rope-changing cart and its guide pulley. Start the cage guide rope rope-changing cart to pull and lower the new cage guide rope into the shaft until the end of the new cage guide rope reaches the bottom of the shaft, then stop the cage guide rope rope-changing cart. Position and retain the new cage guide rope with a rope gripper or a plate clamp at the wellhead.

[0012] Stp6. Installing the bottom end of the new cage guide rope: Clean the bottom locking position of the new cage guide rope at the bottom of the shaft, assemble the lower locking device and lock it. Loosen the rope gripper or the plate clamp for positioning and retaining the rope at the wellhead. Start the cage guide rope rope-changing cart to lift the new cage guide rope until the lower locking device reaches the positioning position. Stop the cage guide rope rope-changing cart and check and confirm the running direction of the new cage guide rope and install the positioning sleeve. Then start the cage guide rope rope-changing cart to slowly lift the new cage guide rope until the new cage guide rope is straightened, then stop the cage guide rope rope-changing cart. Position and retain the new cage guide rope again with a rope gripper or a plate clamp at the wellhead.

[0013] Stp7. Installation of the top of the new cage guide rope: After measuring the reserved length at the top of the new cage guide rope, cut the new cage guide rope. Control the rope head of the new cage guide rope spit out by the cage guide rope rope-changing cart, control the hoist on the upper floor to release the steel wire rope and lower it to the wellhead, and fixedly connect it to the new cage guide rope through a rope clamp. Use the hoist on the upper floor to lift the rope head of the new cage guide rope over the upper locking device and coil it up. After cleaning the top rope-locking position of the new cage guide rope, assemble the locking device pressing device, use a jack to assemble the upper locking device, and complete the replacement of the new cage guide rope after loosening the rope clamping device or plate for positioning and leaving the rope at the wellhead.

[0014] Stp8. Replacement of other old cage guide ropes: Repeat Stp2 to Stp7 to replace other old cage guide ropes that need to be replaced.

[0015] Stp9. Rope inspection and restoration of hoisting: Withdraw the cage guide rope rope-changing cart, control the hoisting container to descend to the wellhead, install the upper guide sliding sleeve and lower guide sliding sleeve of the hoisting container on the wellhead working platform on the ground, remove the working platforms on the ground and underground, and then start the rope inspection after starting the vehicle. After the rope inspection is qualified, resume hoisting.

[0016] As an implementation mode of the present invention, for the cage guide rope tensioning method that uses the counterweight connected to the bottom end of the cage guide rope to tension the cage guide rope, in Stp2, the underground working platform is built at the underground counterweight beam. The method to slacken the old cage guide rope is to hang a hoist on the counterweight beam and lift the counterweight through the hoist to slacken the old cage guide rope. After connecting the lower locking device to the underground hoist located in the underground roadway, first remove the connecting pin shaft between the lower locking device and the counterweight, and then cut the old cage guide rope above the lower locking device.

[0017] Before assembling and locking the lower locking device in Stp6, leave a safety rope of a set length below the installation position of the lower locking device. After assembling and locking the lower locking device, tie and stabilize the lower locking device with a nylon rope to prevent rope entanglement. After checking and confirming the running direction of the new cage guide rope, first insert the connecting pin shaft to connect the lower locking device to the counterweight, and then start the cage guide rope rope-changing cart to slowly lift the new cage guide rope.

[0018] Before loosening the rope clamping device or plate for positioning and leaving the rope at the wellhead in Stp7, first lower the counterweight through the hoist on the underground working platform and install the counterweight positioning sleeve, and then remove the connection between the hoist and the counterweight.

[0019] As another implementation mode of the present invention, for the cage guide rope tensioning method that uses the hydraulic tensioning device connected to the top end of the cage guide rope to tension the cage guide rope, in Stp2, the underground working platform is built at the lower locking device. The method to slacken the old cage guide rope is to control the hydraulic tensioning device located at the top end of the old cage guide rope to release pressure on the old cage guide rope to slacken the old cage guide rope.

[0020] In Stp7, after loosening the rope clamping device or plate for positioning and leaving the rope at the wellhead, apply pressure to the new cage guide rope through the hydraulic tensioning device to tension it.

[0021] As a further improvement of the present invention, in Stp5, after the new cage guide rope end is introduced into the shaft through the cage guide rope rope-changing cart and its guide rope wheels, a new cage guide rope guiding device is installed with the two old cage guide ropes on the same side as the guide.

[0022] As a further improvement of the present invention, in Stp6, when repositioning and leaving the rope of the new cage guide rope through a rope gripper or a plate clamp at the wellhead, at least two rope grippers or plate clamps are arranged at intervals up and down, and a measurement mark is made on the new cage guide rope between the two rope grippers or plate clamps;

[0023] In Stp7, when loosening the rope gripper or plate clamp for positioning and leaving the rope at the wellhead, slow operation is carried out and the position of the measurement mark is observed for any change. After confirmation, all the rope grippers or plate clamps are loosened.

[0024] As a further improvement of the present invention, multiple cage guide rope rope-changing carts are connected in series. During the process of recovering the old cage guide rope and lowering the new cage guide rope, the multiple cage guide rope rope-changing carts operate synchronously.

[0025] As a further improvement of the present invention, the new cage guide rope winch is installed and connected to the new cage guide rope reel through a damping adjustable mechanism, and the new cage guide rope winch is made to passively release the new cage guide rope by adjusting the rotational damping of the new cage guide rope reel.

[0026] Compared with the prior art, the method for replacing the cage guide rope of the mine hoisting system of the present invention uses the cage guide rope rope-changing cart arranged at the wellhead to replace the cage guide rope. Through the cage guide rope rope-changing cart, the old cage guide rope is recovered and the new cage guide rope is lowered. There is no need to rewind the new cage guide rope. Just installing the new cage guide rope reel on the new cage guide rope winch can realize the lowering of the new cage guide rope. It can avoid the problem that the new cage guide rope is easily damaged during the winding or lowering process due to uneven winding of the new cage guide rope existing in the traditional replacement of the cage guide rope using a steady winch. It can avoid the problems of great operation difficulty and high working intensity existing in the traditional underground recovery of the old cage guide rope. It can improve the rope-changing efficiency on the premise of ensuring safe rope-changing and is especially suitable for the replacement of the cage guide rope in the mine. Detailed implementation mode

[0027] The following further describes the present invention.

[0028] A method for replacing the cage guide rope of a mine hoisting system specifically includes the following steps:

[0029] Stp1. Disconnect the connection between the hoisting container and the old cage guide rope: Lift the hoisting container and position it at the set rope-changing position above the wellhead, build an above-ground working platform, sequentially remove the upper guide sliding sleeve and the lower guide sliding sleeve connecting the old cage guide rope and the hoisting container. After the disassembly is completed, control the hoisting container to move upward to the set docking position above the wellhead to make way for the wellhead position, facilitating the subsequent arrangement of the cage guide rope rope-changing cart at the wellhead.

[0030] Stp2. Breakage at the bottom end of the old guide rope: Build an underground working platform at the position corresponding to the bottom of the guide rope in the mine. After the old guide rope is loosened, connect the lower locking device to the underground winch located in the underground roadway. Cut the old guide rope above the lower locking device and then lower the lower locking device to the bottom of the well through the underground winch. Remove the lower locking device at the bottom of the well for recycling and remove the positioning sleeve.

[0031] Stp3. Breakage at the top end of the old guide rope: Use a rope gripper or a plate clamp to tighten the guide rope on the aboveground working platform. Pull up the rope gripper or the plate clamp and confirm that the old guide rope above the rope gripper or the plate clamp is in a slack state. The upstairs winch on the derrick above the wellhead releases the steel wire rope and fixedly connects it to the guide rope through a rope clamp below the floor where the rope gripper or the plate clamp tightens the guide rope. Tie the old guide rope with iron wire above the position where the rope gripper or the plate clamp tightens the guide rope to prevent the end of the old guide rope from becoming loose after cutting the old guide rope. Then cut the old guide rope above the tying position, and then control the upstairs winch to release the steel wire rope to lower the end of the old guide rope to the wellhead position and remove the rope clamp.

[0032] Stp4. Recycling the old guide rope: Arrange a guide rope replacement cart and an old guide rope recycling winch at the wellhead. Adjust the position of the guide rope replacement cart so that the vertical tangent direction of its guide pulley is directly opposite to the middle position between the guide ropes of the two beams. Feed the end of the old guide rope into the guide rope replacement cart through the guide pulley. Start the guide rope replacement cart to slowly recycle the old guide rope and position the end of the old guide rope passing through the guide rope replacement cart on the old guide rope recycling winch. Wind and recycle the old guide rope through the old guide rope recycling winch. Stop the guide rope replacement cart and the old guide rope recycling winch and remove the rope gripper or the plate clamp when the position where the rope gripper or the plate clamp tightens the guide rope is close to the guide rope replacement cart. Then start the guide rope replacement cart and the old guide rope recycling winch again and recycle the old guide rope at the normal speed until the old guide rope is completely wound on the old guide rope recycling winch for the complete recycling of the old guide rope.

[0033] Stp5. Lowering the new guide rope: Arrange a new guide rope winch with a new guide rope reel installed at the wellhead. Introduce the end of the new guide rope into the shaft through the guide rope replacement cart and its guide pulley. Start the guide rope replacement cart to pull and lower the new guide rope into the shaft until the end of the new guide rope passes through the lower rope splitting wooden fixed steel beam and reaches 2 - 3 m above the bottom of the well, then stop the guide rope replacement cart. Position and retain the new guide rope at the wellhead with a rope gripper or a plate clamp.

[0034] Stp6. Installation of the bottom end of the new guide rope: Clean the bottom locking position of the new guide rope at the bottom of the shaft, assemble the lower locking device and lock it. Loosen the rope gripper or plate clamp for positioning and retaining the rope at the wellhead. Start the guide rope rope-changing cart to lift the new guide rope until the lower locking device reaches the positioning position. Stop the guide rope rope-changing cart and check and confirm the running direction of the new guide rope and install the positioning sleeve. Then start the guide rope rope-changing cart to slowly lift the new guide rope until the new guide rope is straightened. At the wellhead, use the rope gripper or plate clamp to position and retain the new guide rope again.

[0035] Stp7. Installation of the top end of the new guide rope: After measuring the reserved length at the top end of the new guide rope, cut the new guide rope. Control the guide rope rope-changing cart to spit out the rope end of the new guide rope. Control the upstairs winch to release the steel wire rope to the wellhead and fixedly connect it to the new guide rope through rope clamps. Use the upstairs winch to lift the rope end of the new guide rope over the upper locking device and coil it up. After cleaning the top locking position of the new guide rope, assemble the locking device pressing device, use the jack to assemble the upper locking device. After loosening the rope gripper or plate clamp for positioning and retaining the rope at the wellhead, complete the replacement of the new guide rope.

[0036] Stp8. Replacement of other old guide ropes: Repeat Stp2 to Stp7 to replace other old guide ropes that need to be replaced.

[0037] Stp9. Rope inspection and resuming hoisting: Withdraw the guide rope rope-changing cart, control the hoisting container to descend to the wellhead. Install the upper guide sliding sleeve and the lower guide sliding sleeve of the hoisting container on the wellhead working platform. After removing the wellhead working platform and the underground working platform, start the vehicle for rope inspection. After the rope inspection is qualified, resume hoisting.

[0038] For the guide rope tensioning method that uses the counterweight connected to the bottom end of the guide rope to tension the guide rope, as a further improvement scheme of the present invention, in Stp2, the underground working platform is built at the underground counterweight beam. The method to slacken the old guide rope is to hang a hoist on the counterweight beam and lift the counterweight through the hoist to slacken the old guide rope. After connecting the lower locking device to the underground winch located in the underground roadway, first remove the connecting pin shaft between the lower locking device and the counterweight, and then cut the old guide rope above the lower locking device.

[0039] In Stp6, before assembling and locking the lower locking device, leave a 5m safety rope below the installation position of the lower locking device. After assembling and locking the lower locking device, tie and stabilize the lower locking device with a nylon rope to prevent rope entanglement. After checking and confirming the running direction of the new guide rope, first insert the connecting pin shaft to connect the lower locking device with the counterweight, and then start the guide rope rope-changing cart to slowly lift the new guide rope.

[0040] In Stp7, before loosening the rope gripper or plate clamp for positioning and retaining the rope at the wellhead, first lower the counterweight through the hoist on the underground working platform and install the counterweight positioning sleeve, and then remove the connection between the hoist and the counterweight.

[0041] For the method of tensioning the cage guide rope by using a hydraulic tensioning device connected to the top of the cage guide rope, as a further improvement of the present invention, in Stp2, the underground working platform is built at the lower locking device, and the method of loosening the old cage guide rope is to control the hydraulic tensioning device located at the top of the old cage guide rope to release pressure on the old cage guide rope so as to loosen the old cage guide rope;

[0042] In Stp7, after loosening the rope clamping device or plate clamp for positioning and retaining the rope at the wellhead, the new cage guide rope is tensioned by applying pressure through the hydraulic tensioning device.

[0043] During the process of introducing the new cage guide rope head into the shaft, in order to achieve accurate guiding, as a further improvement of the present invention, in Stp5, after the new cage guide rope head is introduced into the shaft through the cage guide rope rope changing cart and its guide rope pulley, a new cage guide rope guiding device is installed with the two old cage guide ropes on the same side as the guide.

[0044] In order to achieve stable recovery of the old cage guide rope and stable lowering of the new cage guide rope, as a further improvement of the present invention, multiple cage guide rope rope changing carts are connected in series. During the process of recovering the old cage guide rope and lowering the new cage guide rope, multiple cage guide rope rope changing carts operate synchronously.

[0045] To ensure the safety of the rope changing process, as a further improvement of the present invention, in Stp6, when re-positioning and retaining the new cage guide rope at the wellhead by using a rope clamping device or plate clamp, at least two rope clamping devices or plate clamps are arranged at intervals up and down, and measurement marks are made on the new cage guide rope between the two rope clamping devices or plate clamps; in Stp7, when loosening the rope clamping device or plate clamp for positioning and retaining the rope at the wellhead, slow operation is carried out and the position of the measurement mark is observed for any change, and after confirming that it is correct, all the rope clamping devices or plate clamps are loosened.

[0046] In order to increase the stability of lowering the new cage guide rope during the process of releasing the new cage guide rope, as a further improvement of the present invention, the new cage guide rope winch is installed and connected to the new cage guide rope reel through a damping adjustable mechanism, and in Stp5, the rotation damping of the new cage guide rope reel is adjusted to realize the passive release of the new cage guide rope by the new cage guide rope winch.

[0047] The method for replacing the cage guide rope of the mine hoisting system uses the cage guide rope rope changing cart arranged at the wellhead to recover the old cage guide rope and lower the new cage guide rope, which can avoid the problem that the new cage guide rope is easily damaged during the winding process or the lowering process when the new cage guide rope is unevenly wound in the traditional method of replacing the cage guide rope by using a steady winch, and can avoid the problems of great operation difficulty and high working intensity in the traditional underground recovery of the old cage guide rope.

Claims

1. A method for replacing the guide rope of a mine hoisting system, characterized in that, it specifically includes the following steps: Stp1. Disconnect the connection between the hoisting container and the old guide rope: Lift the hoisting container and position it at the set rope replacement position above the wellhead, build an above-ground working platform, successively remove the upper guide sleeve and the lower guide sleeve connecting the old guide rope to the hoisting container, and after the disassembly is completed, control the hoisting container to move upward to the set docking position above the wellhead to vacate the wellhead position, facilitating the subsequent arrangement of the guide rope replacement vehicle at the wellhead; Stp2. Break the bottom end of the old guide rope: Build an underground working platform at the position corresponding to the bottom of the guide rope underground, slacken the old guide rope and connect the lower locking device to the underground winch located in the underground roadway, cut the old guide rope above the lower locking device and then lower the lower locking device to the bottom of the well through the underground winch, and remove the lower locking device for recycling and remove the positioning sleeve at the bottom of the well; Stp3. Break the top end of the old guide rope: Clamp the guide rope with a rope gripper or a plate clamp on the above-ground working platform, pull up the rope gripper or the plate clamp, and confirm that the old guide rope above the rope gripper or the plate clamp is in a slack state; The upper winch on the derrick above the wellhead pays out the steel wire rope and fixedly connects it to the guide rope through a rope clamp below the floor where the rope gripper or the plate clamp clamps the guide rope; Bind the old guide rope with iron wire above the position where the rope gripper or the plate clamp clamps the guide rope to prevent the end of the old guide rope from loosening after cutting the old guide rope, then cut the old guide rope above the binding position, and then control the upper winch to pay out the steel wire rope to lower the end of the old guide rope to the wellhead position and remove the rope clamp; Stp4. Recycle the old guide rope: Arrange a guide rope replacement vehicle and an old guide rope recycling winch at the wellhead, send the end of the old guide rope into the guide rope replacement vehicle through the guide pulley, start the guide rope replacement vehicle to slowly recycle the old guide rope and position the end of the old guide rope passing through the guide rope replacement vehicle on the old guide rope recycling winch, wind and recycle the old guide rope through the old guide rope recycling winch, stop the guide rope replacement vehicle and the old guide rope recycling winch and remove the rope gripper or the plate clamp when the position where the rope gripper or the plate clamp clamps the guide rope is close to the guide rope replacement vehicle, and then start the guide rope replacement vehicle and the old guide rope recycling winch again and recycle the old guide rope at the normal speed until the old guide rope is completely wound on the old guide rope recycling winch for the complete recycling of the old guide rope; Stp5. Lower the new guide rope: Arrange a new guide rope paying-out winch with a new guide rope reel installed at the wellhead, introduce the end of the new guide rope into the shaft through the guide rope replacement vehicle and its guide pulley, start the guide rope replacement vehicle to tow and lower the new guide rope into the shaft until the end of the new guide rope reaches the bottom of the well, then stop the guide rope replacement vehicle, and position and retain the new guide rope with a rope gripper or a plate clamp at the wellhead; Stp6. Installation of the bottom end of the new cage guide rope: Clean the bottom locking position of the new cage guide rope at the bottom of the shaft, assemble the lower locking device and lock it. Loosen the rope gripper or plate clamp for positioning and retaining the rope at the wellhead, start the cage guide rope rope-changing vehicle to lift the new cage guide rope until the lower locking device reaches the positioning position, stop the cage guide rope rope-changing vehicle, check and confirm the running direction of the new cage guide rope and install the positioning sleeve, then start the cage guide rope rope-changing vehicle to slowly lift the new cage guide rope until the new cage guide rope is straightened, and then position and retain the new cage guide rope again at the wellhead through the rope gripper or plate clamp; Stp7. Installation of the top end of the new cage guide rope: After measuring the reserved length at the top end of the new cage guide rope, cut off the new cage guide rope. Control the cage guide rope rope-changing vehicle to spit out the rope end of the new cage guide rope, control the hoist on the upper floor to release the steel wire rope to the wellhead and fixedly connect it to the new cage guide rope through rope clamps, and use the hoist on the upper floor to lift the rope end of the new cage guide rope over the upper locking device and coil it up; After cleaning the top locking position of the new cage guide rope, assemble the locking device pressing device, use the jack to assemble the upper locking device, and complete the replacement of the new cage guide rope after loosening the rope gripper or plate clamp for positioning and retaining the rope at the wellhead; Stp8. Replacement of other old cage guide ropes: Repeat Stp2 to Stp7 to replace other old cage guide ropes that need to be replaced; Stp9. Rope inspection and resumption of hoisting: Withdraw the cage guide rope rope-changing vehicle, control the hoisting container to descend to the wellhead, install the upper guide sliding sleeve and the lower guide sliding sleeve of the hoisting container on the wellhead working platform on the ground, remove the working platforms on the ground and underground, and then start the vehicle for rope inspection. After the rope inspection is qualified, resume hoisting.

2. The method for replacing the cage guide rope of the mine hoisting system according to claim 1, characterized in that for the cage guide rope tensioning method that uses the counterweight connected to the bottom end of the cage guide rope to tension the cage guide rope, in Stp2, the underground working platform is built at the underground counterweight beam, and the method to slacken the old cage guide rope is to hang a hoist on the counterweight beam and lift the counterweight through the hoist to slacken the old cage guide rope; After connecting the lower locking device to the underground hoist located in the underground roadway, first remove the connecting pin shaft between the lower locking device and the counterweight, and then cut off the old cage guide rope above the lower locking device; In Stp6, before assembling and locking the lower locking device, leave a safety rope of a set length below the installation position of the lower locking device. After assembling and locking the lower locking device, tie and stabilize the lower locking device with a nylon rope to prevent rope winding; After checking and confirming the running direction of the new cage guide rope, first insert the connecting pin shaft to connect the lower locking device to the counterweight, and then start the cage guide rope rope-changing vehicle to slowly lift the new cage guide rope; In Stp7, before loosening the rope gripper or plate clamp for positioning and retaining the rope at the wellhead, first lower the counterweight through the hoist on the underground working platform, install the counterweight positioning sleeve, and then remove the connection between the hoist and the counterweight.

3. The method for replacing the cage guide rope of the mine hoisting system according to claim 1, characterized in that for the cage guide rope tensioning method that uses the hydraulic tensioning device connected to the top end of the cage guide rope to tension the cage guide rope, in Stp2, the underground working platform is built at the lower locking device, and the method to slacken the old cage guide rope is to control the hydraulic tensioning device located at the top end of the old cage guide rope to release pressure on the old cage guide rope to slacken the old cage guide rope; At Stp7, after loosening the rope gripper or plate clip for positioning and retaining the rope at the wellhead, the new cage guide rope is pressurized and tensioned by the hydraulic tensioning device.

4. The method for replacing the cage guide rope of the mine hoisting system according to claim 1 or 2 or 3, characterized in that, At Stp5, after the head of the new cage guide rope is introduced into the shaft through the cage guide rope rope changing cart and its guide pulley, the new cage guide rope guiding device is installed with the two old cage guide ropes on the same side as the guide.

5. The method for replacing the cage guide rope of the mine hoisting system according to claim 1 or 2 or 3, characterized in that, At Stp6, when re-positioning and retaining the new cage guide rope with a rope gripper or plate clip at the wellhead, at least two rope grippers or plate clips are arranged at intervals up and down, and a measurement mark is made on the new cage guide rope between the two rope grippers or plate clips; At Stp7, when loosening the rope gripper or plate clip for positioning and retaining the rope at the wellhead, slow operation is carried out and the position of the measurement mark is observed for any change, and then all the rope grippers or plate clips are loosened after confirmation.

6. The method for replacing the cage guide rope of the mine hoisting system according to claim 1 or 2 or 3, characterized in that, A plurality of cage guide rope rope changing carts are connected in series. During the process of recovering the old cage guide rope and lowering the new cage guide rope, the plurality of cage guide rope rope changing carts operate synchronously.

7. The method for replacing the cage guide rope of the mine hoisting system according to claim 1 or 2 or 3, characterized in that, The new cage guide rope winch is installed and connected to the new cage guide rope reel through a damping adjustable mechanism, and at Stp5, the new cage guide rope winch is made to passively release the new cage guide rope by adjusting the rotational damping of the new cage guide rope reel.