A method for laying adhesive belt of underground long-distance conveyor
By setting up a wellhead and in-well vulcanization operation platform under the coal mine, and using the traction device to traction and vulcanization connection, the problem of difficult tape application of long-distance tape conveyors is solved, and efficient tape application and vulcanization operation is achieved.
Patent Information
- Application Number
- CN202111273109.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-29
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2041-10-29
AI Technical Summary
Under the coal mine, there are difficulties in applying tape to long-distance tape conveyors, including large weight of tape, inability to be fully manual, narrow main horizontal tunnel area, difficult layout of vulcanization working platform, strict requirements for vulcanization process and difficult quality control.
A method of applying tape from a long-distance conveyor downhole is adopted, including setting up a wellhead tape vulcanization operation platform at the wellhead position, pulling the tape into the transportation channel using the traction device, and connecting the vulcanization joints of the tape through the in-well vulcanization operation platform, and finally completing the closed-loop connection of the tape at the tail of the machine.
The flow-through operation of tape application and vulcanization is realized, the work efficiency is improved, the occupation time of the main horizontal transportation channel is reduced, the labor intensity of staff is reduced, and the quality of vulcanization of joints is improved.
Smart Images
Figure CN113958362B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of applying a belt for a long-distance belt conveyor in an underground coal mine, and in particular to a method for applying a belt for a long-distance belt conveyor in an underground coal mine. Background Art
[0002] Long-distance belt transport in coal mines has the characteristics of fast transportation, continuous and uniform transportation, high productivity, low consumption, low operating cost, safe and reliable use, easy inspection and maintenance, and can also realize curve or double-layer reverse transportation through special design. It has been widely used in large and medium-sized mines (wells), transportation tunnels, transportation chute and other places.
[0003] In coal mines, due to the limitations of the main horizontal tunnel and the tape itself, the application of the tape has the following difficulties:
[0004] (1) The belt of the long-distance conveyor is extremely long, which makes the belt heavy, reaching several tons or tens of tons. It cannot be completely laid manually, and the working surface is narrow, making it extremely difficult to arrange the traction power;
[0005] (2) The main horizontal tunnel itself is narrow and is also the main passage for production, transportation and emergency response of the mine. Therefore, during the application process, underground vulcanization and tape application cannot occupy the main transportation passage of the mine for a long time;
[0006] (3) If the vulcanization work platform is arranged in the main horizontal tunnel, not only the workload is large, production scheduling and coordination are difficult, but also continuous operation cannot be achieved, the work efficiency is low, and the construction period is greatly affected;
[0007] (4) The tape vulcanization process has strict requirements. There are many potential safety hazards and influencing factors (such as time, temperature and humidity) in the main horizontal tunnel, making quality control difficult. Summary of the invention
[0008] In order to solve the above problems, the present invention provides a method for applying tape for an underground long-distance conveyor, which can realize the streamlined construction operations of tape application and vulcanization, greatly improve the efficiency of tape application, and also effectively reduce the occupancy time of the main horizontal tunnel transportation channel.
[0009] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:
[0010] A method for laying an adhesive tape for an underground long-distance conveyor comprises the following steps:
[0011] S1. Set up a wellhead tape vulcanization operation platform at the wellhead;
[0012] S2. The tape is pulled into the transport channel by a traction device, and the vulcanization connection of the vulcanized joints of the upper and lower tapes is completed through the vulcanization work platform while being pulled;
[0013] S3. Set up an in-hole vulcanization operation platform in the conveying channel, connect and close one end of the upper belt and the lower belt through the in-hole vulcanization operation platform, and tighten the tape. Complete the vulcanization work of the last joint of the tape through the wellhead vulcanization operation platform, so that the upper belt and the lower belt form a closed-loop connection state.
[0014] Furthermore, in the step S1, the wellhead tape vulcanization operation platform is set up at the wellhead position on a branch road avoiding the main transportation channel.
[0015] Furthermore, in step S2, the traction device includes a column returning winch, a locomotive that drives the column returning winch to move, a traction rope connecting the tape and the column returning winch, and a guide pulley, wherein the column returning winch is fixed on a rail flatbed car, one end of the traction rope is connected to the end of the tape, and the other end is connected to the column returning winch through the guide pulley.
[0016] Furthermore, both ends of the rail flatbed car are fixed to the track by car stoppers, and a single hydraulic support is used to fix the flatbed car between the four corners and the top of the main tunnel.
[0017] Furthermore, a resin anchor is driven into the side wall of the transport channel, and the guide pulley is fixed to the resin anchor by a steel wire rope. An adjustment hoist is provided on the steel wire rope, and each time the position of the traction device is adjusted, the position of the guide pulley is adjusted by adjusting the hoist.
[0018] Furthermore, there are two guide pulleys, one guide pulley is located on the belt side, and the other guide pulley is located on the track side. When pulling the belt, the guide pulley on the belt side is basically consistent with the center line of the long-distance conveyor, and the guide pulley of the track car is basically consistent with the center line of the track. At the same time, the angle between the wire rope and the side wall of the transport channel is ≤45°.
[0019] Furthermore, a clamp is provided at one end of the traction rope, a traction head is anchored at the end of the tape, the clamp is connected to the traction head, and the column return winch is detachably fixed to the rail flatbed vehicle by bolts.
[0020] Furthermore, in step S2, when vulcanizing the connecting tape, the lower tape is connected first, and then the upper tape is connected, and the process is repeated in sequence.
[0021] The beneficial effects of the present invention are as follows:
[0022] 1. The tape is vulcanized at a fixed point, which improves work efficiency, reduces the impact of the working environment on the joint quality, and improves the quality of joint vulcanization. Specifically, the vulcanization of the tape is carried out on the wellhead tape vulcanization operation platform outside the wellhead, and only one vulcanization connection is required in the transportation channel. The entire deployment process requires the construction of two tape vulcanization work platforms, which reduces the workload of setting up vulcanization platforms at multiple points. The working environment of tape vulcanization is not affected by external factors. At the same time, there is basically no need to carry out vulcanization work in the transportation channel, which increases the comfort of the staff, reduces the labor intensity of the staff, and improves the reliability of work quality;
[0023] 2. It reduces the occupation time of the main horizontal tunnel transportation channel. During the tape application process, the traction device can be moved and removed conveniently and quickly. In case of emergency, only the traction device and traction rope can be removed to make way for the channel within half an hour, which reduces the mutual interference with the mine's safe production and makes it more convenient for both parties.
[0024] 3. The application of tape realizes streamlined operation and further improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 It is the principle diagram of tape application; DETAILED DESCRIPTION
[0026] In the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integrated connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0027] Example
[0028] The present embodiment provides a method for laying an adhesive belt for an underground long-distance conveyor, which comprises setting up an adhesive belt vulcanizing operation platform at the wellhead position on a branch road avoiding the main transportation channel of the mine, completing the vulcanization work of all the vulcanized joints of the upper belt and the lower belt of the entire section of the adhesive belt from the wellhead to the tail of the machine, and finally vulcanizing and connecting the ends of the upper belt and the lower belt at the tail of the machine to close them. After the adhesive belt in the well is tensioned, the vulcanization work of the last joint of the entire adhesive belt is completed in the head room of the machine.
[0029] Specifically, see Figure 1 As shown, the method for laying an adhesive tape for an underground long-distance conveyor in this embodiment includes the following steps:
[0030] S1. A wellhead tape vulcanization operation platform is set up at the wellhead position, wherein it is best to set up the wellhead tape vulcanization operation platform at the wellhead position on a branch road away from the main transportation channel, so that during the entire tape application cycle, the wellhead vulcanization operation platform will not affect the use of the main transportation channel, that is, it can be disassembled after the entire tape application process is completed;
[0031] S2. Use the traction device to pull the tape into the transport channel, and at the same time, complete the vulcanization connection of the vulcanized joints of the upper tape and the lower tape through the vulcanization work platform. When vulcanizing the tape, the lower tape can be connected first, and then the upper tape, and the process is repeated in sequence;
[0032] Of course, before vulcanization, the transportation and fixation of the tape can be carried out in the following way: the tape is placed on a flatbed truck from the warehouse by a crane or a crane and fixed firmly, and then slowly transported to the vicinity of the vulcanization platform 20-30m away by an electric locomotive or manual labor. Then, the rubber ring at the head of the tape machine is unloaded from the flatbed truck with a chain hoist and a gantry frame and placed on a tape unwinding rack for temporary fixation, the rubber ring at the wellhead end is lifted by a gantry frame, and another tape unwinding rack is fixed on the original flatbed truck. The rubber ring at the wellhead end is placed on the unwinding rack, the height is adjusted, the rubber ring is manually coiled, and the flatbed truck is pushed to the end of the vulcanization platform by manpower. The rubber ring is continued to be coiled to manually wind the tape between the vulcanization platform and the gantry frame, and the wound tape end is placed on the vulcanization platform, and the vulcanization operation can be carried out.
[0033] S3. Set up an in-well vulcanization work platform in the conveying channel, connect and close one end of the upper belt and the lower belt through the in-well vulcanization work platform, and tighten the tape. Use the wellhead vulcanization work platform to complete the vulcanization work of the last joint of the tape, so that the upper belt and the lower belt form a closed-loop connection state. Specifically, after the upper and lower belts are laid, the lower belt head at the tail of the machine is pulled around the roller of the long-distance conveyor at the tail of the machine to the upper belt position, and the in-well vulcanization work platform is set up near the tail roller to complete the vulcanization joint of the tail tape. After completion, the vulcanization equipment is immediately dismantled and transported out of the well. The head part of the tape is passed around the driving and tensioning device of the long-distance conveyor, and the tensioning device is used to adjust and tension the tape. After cutting off the remaining tape, the head tape is vulcanized and bonded to form a closed loop, thus completing the vulcanization joint of the entire tape. Before the tail joint is vulcanized, a tensioning device is used to apply tension to the tape until the tape tension meets the requirements. When overlapping the two belt heads for gluing, the tensioning roller should be in the middle of the tensioning stroke, and a margin should be left for the length of the glued annular belt. The margin should be based on the fact that the tensioning roller basically falls in the designed position after the annular belt is subjected to tension.
[0034] Specifically, in step S2, the traction device includes a column return winch, a locomotive driving the column return winch to move, a traction rope connecting the tape and the column return winch, and a guide pulley, wherein the column return winch is fixed on a rail flatbed car, one end of the traction rope is connected to the end of the tape, and the other end is connected to the column return winch through the guide pulley. There are rail transport lanes and belt transport lanes in the coal mine, and the locomotive on the track of the rail transport lane is used to assist in the application of the tape.
[0035] During the entire application process, the winch pulls the traction rope to drag the tape to apply the tape. Specifically, during application, the traction device is moved forward every certain distance, for example, 400m. After the traction device moves, the winch is started to drive the tape to move 400m, and this cycle is repeated to drag the tape for application. Of course, it should be noted that the position of the pulley and the end of the tape needs to be greater than the distance the tape moves each time.
[0036] In a possible embodiment, the two ends of the rail flatbed car are fixed to the track with car stoppers, and a single hydraulic support is used to fix the flatbed car between the four corners of the flatbed car and the top of the main horizontal shaft. This can prevent the return column winch from being displaced during the process of dragging the tape, and also prevent the rail flatbed car from overturning due to the dragging force.
[0037] As a specific setting method of the guide pulley, a resin anchor rod is driven into the side wall of the transport channel, and the driving distance is consistent with the distance that the tape is dragged each time. The guide pulley is fixed to the resin anchor rod by a steel wire rope, and an adjustment hoist is provided on the steel wire rope. Each time the position of the traction device is adjusted, the position of the guide pulley is adjusted by adjusting the hoist. The adjustment hoist can be a bracelet hoist. After each overall movement of the traction device, the position of the guide pulley can be adjusted by adjusting the hoist, so that it can better drive and guide the traction rope, so that it can drag the tape along a predetermined route for release.
[0038] In a possible embodiment, there are two guide pulleys, one guide pulley is located on the side of the belt, that is, at the position where the belt is laid on the long-distance conveyor, and the other guide pulley is located on the track side, that is, above the track. When pulling the belt, the guide pulley on the belt side is basically consistent with the center line of the long-distance conveyor, and the guide pulley of the track car is basically consistent with the center line of the track. At the same time, the angle between the wire rope and the side wall of the transport channel is ≤45°, so as to better limit the moving trajectory of the belt and effectively complete the laying of the belt, while also reducing the impact on the balance of the track flatbed car.
[0039] However, during the actual application process, the application of the tape is not completed in one go. At the same time, the main transport channel also plays an important role in transportation, and the application of the tape cannot be completed in one or two days. Therefore, time needs to be given to the miners to use the transport channel. For this, the present embodiment has a clamping ring at one end of the traction rope, and the end of the tape is anchored with a traction head, the clamping ring is connected to the traction head, and the return column winch is detachably fixed to the rail flatbed car by bolts. A hook or the like can be provided on the traction head for detachable connection with the clamping ring. Every time the main transport channel needs to be given to the main miners for use, the clamping ring is directly separated from the traction head, and the traction rope is recovered to the return column winch. Then, the locomotive can be used to quickly drag the return column winch that occupies the road into the branch road, and the main transport channel can be given to the main miners in less than half an hour.
[0040] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The patent protection scope of the present invention shall be based on the claims. All equivalent structural changes made using the contents of the description and drawings of the present invention should also be included in the protection scope of the present invention.
Claims
1. A method for applying a long-distance conveyor belt, characterized in that: The steps include: S1. Set up a wellhead tape vulcanization operation platform at the wellhead; S2. The tape is pulled into the transport channel by a traction device, and the vulcanization connection of the vulcanized joints of the upper and lower tapes is completed through the vulcanization work platform while being pulled; S3. Set up an in-well vulcanization operation platform in the conveying channel, connect and close one end of the upper belt and the lower belt through the in-well vulcanization operation platform, and tighten the tape. Complete the vulcanization work of the last joint of the tape through the wellhead vulcanization operation platform, so that the upper belt and the lower belt form a closed loop connection state; In step S2, the traction device includes a column return winch, a locomotive for driving the column return winch to move, a traction rope connecting the tape and the column return winch, and a guide pulley, wherein the column return winch is fixed on a rail flatbed vehicle, one end of the traction rope is connected to the end of the tape, and the other end is connected to the column return winch through the guide pulley; A resin anchor is driven into the side wall of the transport channel, and the guide pulley is fixed to the resin anchor by a steel wire rope. An adjustment hoist is arranged on the steel wire rope. Each time the position of the traction device is adjusted, the position of the guide pulley is adjusted by adjusting the hoist. There are two guide pulleys, one is located on the belt side, and the other is located on the track side. When pulling the belt, the guide pulley on the belt side is consistent with the center line of the long-distance conveyor, and the guide pulley on the track car is consistent with the center line of the track. At the same time, the angle between the wire rope and the side wall of the transport channel is ≤45°.
2. The long distance conveyor belt laying method according to claim 1 is characterized in that: In step S1, the wellhead tape vulcanization operation platform is set up at the wellhead position on a branch road avoiding the main transportation channel.
3. The long distance conveyor belt laying method according to claim 1 is characterized in that: The two ends of the rail flatbed car are fixed on the track by car stoppers, and a single hydraulic support is used to fix the flatbed car between the four corners and the top of the main horizontal tunnel.
4. The long distance conveyor belt laying method according to claim 1 is characterized in that: A clamping ring is arranged at one end of the traction rope, a traction head is anchored at the end of the tape, the clamping ring is connected to the traction head, and the column return winch is detachably fixed on the rail flatbed vehicle by bolts.
5. The long distance conveyor belt laying method according to claim 2, characterized in that: In the step S2, when vulcanizing the connecting tape, the lower tape is first connected, and then the upper tape is connected, and the process is repeated in sequence.