Mine rescue material transportation passage and transportation method

Abstract

The present invention provides a mine rescue material conveying passage and a conveying method. The passage includes a conveying pipeline connecting the surface and the middle roadway at the uppermost part of the underground, and a conveying pipeline connecting the upper and lower adjacent middle roadways. A first three-way distributor is connected to the outlet of the conveying pipeline above the middle roadway without a backfilled stope; a second three-way distributor is connected to the outlet of the conveying pipeline above the middle roadway with a backfilled stope. The first discharge end of the second three-way distributor is connected to the inlet of the conveying pipeline below the middle roadway, and the second discharge end of the second three-way distributor is detachably connected to the pipeline of the backfilled stope; a surface emergency rescue space is provided at the inlet of the conveying pipeline connecting the surface, and rescue facilities are provided in the surface emergency rescue space. Using the above method, materials can be quickly conveyed to the middle section where the trapped personnel in the mine are located in case of an emergency.

Description

Technical Field

[0001] The present invention relates to the technical field of mine rescue, and more specifically, to a mine rescue material transportation channel and a transportation method thereof. Background Art

[0002] In recent years, with the increase of underground mining depth, the underground geological conditions have become more and more complex. During the infrastructure construction period, the penetration time of the underground safety exits is getting longer and longer, and some even reach more than 5 years. In recent years, although the trend of production safety accidents has weakened, accidents still occur, especially the harm and losses of major accidents are very huge. For the disasters and accidents that have occurred, timely remedies should be carried out. Especially in the case of trapped personnel, full efforts and timely rescue should be carried out, food and daily necessities should be supplied in time, and casualties should be minimized.

[0003] At present, manual rescue is a conventional means of mine accident rescue and plays a dominant role in mine rescue. However, in some cases (such as: blocked or unpenetrated safety channels, serious floods, gas outbursts, etc.), rescue personnel cannot reach the trapped area in time to carry out rescue, which may lead to food shortage, drug shortage, hypoxia, etc. for the trapped personnel, resulting in damage to physical and mental health and even loss of life. In this case, the bored channel can be used to provide supplies for the trapped personnel, maintain their lives, and wait for the arrival of rescue personnel.

[0004] At present, the conventional bored rescue methods are all to drill temporarily on the ground during rescue to open up a life channel and transport emergency supplies. However, the conventional bored rescue has the following disadvantages: (1) Generally, drilling is carried out temporarily on the ground during rescue, and it is difficult to locate the drill hole. Especially for large and complex mines, when the location of the trapped personnel underground is unknown, the drill hole positioning is relatively blind. (2) Temporary drilling has a long construction period. At the same time, due to complex geological conditions, there are unknown risks such as drill hole deviation, drill hole collapse, and drill hole water inrush, further delaying the rescue time. (3) The rescue depth is limited. For deep shaft mines, the temporary drilling time far exceeds the golden rescue time of 72 hours, and the probability of bored rescue failure is high. (4) In case of emergency, the trapped personnel underground cannot contact the ground in time to communicate information, seriously affecting the pertinence and progress of the rescue.

[0005] The existing bored rescue schemes are all to construct the bored hole urgently after the event. In the case of a certain depth of the mine shaft or complex geological conditions, the time period is too long, and there are many uncertainties in the construction process, resulting in a serious lack of supplies for the trapped personnel and damage to their physical and mental health, thus failing to achieve the effect and purpose of rapid rescue. Summary of the Invention

[0006] In view of the above problems, the purpose of the present invention is to provide a mine rescue material transportation channel and a transportation method thereof, which can quickly transport survival materials to the middle section where the trapped personnel underground are located in an emergency.

[0007] A mine rescue material conveying channel provided by the present invention includes a conveying pipeline connecting the surface and the middle roadway at the uppermost part of the underground, and a conveying pipeline connecting the upper and lower adjacent middle roadways. Among them, at the outlet of the conveying pipeline above the middle roadway without a filling stope, a first three-way distributor is connected. The first discharge end of the first three-way distributor is connected to the inlet of the conveying pipeline below the middle roadway, and the second discharge end of the first three-way distributor faces the bottom surface of the middle roadway; at the outlet of the conveying pipeline above the middle roadway with a filling stope, a second three-way distributor is connected. The first discharge end of the second three-way distributor is connected to the inlet of the conveying pipeline below the middle roadway, and the second discharge end of the second three-way distributor is detachably connected to the pipeline of the filling stope; a surface emergency rescue space is arranged at the inlet of the conveying pipeline connecting the surface, and rescue facilities are arranged in the surface emergency rescue space.

[0008] The diameter of the conveying pipeline is 100mm - 250mm.

[0009] A life-saving cabin or a refuge chamber is connected to the second discharge end of the first three-way distributor.

[0010] The rescue facilities include an emergency contact rope, a communication cable and equipment, and a hoisting device arranged above the inlet of the conveying pipeline connecting the surface.

[0011] The horizontal distance between the outlet of the conveying pipeline above each middle roadway and the inlet of the conveying pipeline below is less than 1.5m.

[0012] A valve is arranged at the inlet of the conveying pipeline connecting the surface.

[0013] On the other hand, a mine rescue material conveying method provided by the present invention uses the above-mentioned mine rescue material conveying channel to convey rescue materials, including the following steps:

[0014] If an accident occurs in a certain middle roadway above the filling stope, the first discharge end of the first three-way distributor of the middle roadway is closed and the second discharge end is opened, the first discharge ends of all the first three-way distributors above the middle roadway are opened and the second discharge ends are closed, and the rescue facilities are used to lower the rescue materials into the conveying pipeline connecting the surface;

[0015] If an accident occurs in the crossheading with a backfill stope, the first discharge end of the second three-way distributor in the crossheading is closed, the second discharge end is opened, and the pipeline between the second discharge end and the backfill stope is split. The first discharge ends of all the first three-way distributors above the crossheading are opened, and the second discharge ends are closed. The rescue facilities are used to lower rescue supplies into the pipeline connected to the surface.

[0016] If an accident occurs in the crossheading below the backfill stope, the first discharge end of the first three-way distributor in the crossheading is closed, the second discharge end is opened. The first discharge ends of all the first three-way distributors above the crossheading are opened, and the second discharge ends are closed. The first discharge end of the second three-way distributor above the crossheading is opened, and the second discharge end is closed. The rescue facilities are used to lower rescue supplies into the pipeline connected to the surface.

[0017] If no accident occurs, the first discharge end of the second three-way distributor in the crossheading with a backfill stope is closed, the second discharge end is opened. The first discharge ends of all the first three-way distributors above the crossheading with a backfill stope are opened, and the second discharge ends are closed. The backfill slurry is lowered into the pipeline connected to the surface.

[0018] If the rescue supply pipeline is not in use, the first discharge ends of the first three-way distributor and the second three-way distributor are both opened, and the second discharge ends are both closed. The second discharge end of the second three-way distributor is split from the pipeline of the backfill stope.

[0019] Using the mine rescue supply pipeline and the conveying method according to the present invention as described above, including the pipeline connecting the surface and the crossheading at the uppermost part of the underground, and the pipelines connecting the adjacent upper and lower crossheadings. A three-way distributor is connected between the pipelines. The three-way distributor between the pipelines of the crossheading with a backfill stope is connected to the backfill stope. When an accident occurs, the present invention can form a rescue supply pipeline by adjusting the discharge direction of the three-way distributor, rescue supplies below the surface, and the supplies can quickly reach the crossheading where the accident occurs, avoiding borehole rescue, saving a large amount of rescue time and a large amount of rescue costs in case of emergency. When no accident occurs, the present invention can form a filling pipeline by adjusting the discharge direction of the three-way distributor, for conveying backfill slurry from the surface to the backfill stope underground.

[0020] To achieve the above and related purposes, one or more aspects of the present invention include features that will be described in detail later and specifically pointed out in the claims. The following description and the accompanying drawings detail certain exemplary aspects of the present invention. However, these aspects merely indicate some of the various ways in which the principles of the present invention can be used. In addition, the present invention is intended to include all such aspects and their equivalents. Description of the Drawings

[0021] By referring to the following description in conjunction with the accompanying drawings and the content of the claims, and with a more comprehensive understanding of the present invention, other objects and results of the present invention will become more apparent and easier to understand. In the drawings:

[0022] Figure 1 is a schematic structural diagram of a mine rescue material conveying passage according to Embodiment 1 of the present invention;

[0023] Figure 2 is a schematic structural diagram of a mine rescue material conveying passage connected with a survival capsule according to Embodiment 1 of the present invention;

[0024] Figure 3 is a flowchart of a mine rescue material conveying method according to Embodiment 2 of the present invention;

[0025] wherein, 1 - ground surface, 2 - intermediate roadway, 3 - conveying pipeline, 4 - first three-way distributor, 5 - second three-way distributor, 6 - filling stope, 7 - intermediate roadway with filling stope, 8 - rescue facility, 9 - lifeboat.

[0026] In all the drawings, the same reference numerals indicate similar or corresponding features or functions. Detailed Embodiments

[0027] In the following description, for the purpose of illustration, in order to provide a comprehensive understanding of one or more embodiments, many specific details are set forth. However, it is obvious that these embodiments can also be implemented without these specific details. In other examples, for the purpose of facilitating the description of one or more embodiments, well-known structures and devices are shown in the form of block diagrams

[0028] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings.

[0029] Embodiment 1

[0030] Figure 1 is a schematic structural diagram of a mine rescue material conveying passage according to Embodiment 1 of the present invention;

[0031] As Figure 1As shown in the figure, the mine rescue material transportation passage proposed in this embodiment can be used for rapid communication, the transportation of supplies (such as food, water, etc.), and the transportation of other rescue equipment or items required underground, such as the transportation of medicines, oxygen, detection instruments and equipment, communication equipment, etc., so as to improve the rescue speed and save rescue costs.

[0032] This mine rescue material transportation passage includes a transportation pipeline 3 connecting the surface 1 and the middle roadway 2 at the uppermost part of the underground, and transportation pipelines 3 connecting adjacent upper and lower middle roadways. Transportation pipelines 3 are provided in all mining stages between the middle roadways for transporting materials into the roadways under the mine. In order to make the upper and lower adjacent transportation pipelines 3 communicate and targetedly transport materials to the middle roadway in need of rescue, a connecting pipeline is provided between the upper and lower adjacent transportation pipelines. The connecting pipeline can adopt a detachable two-way pipe or a three-way distributor.

[0033] In this embodiment, a three-way distributor is adopted. According to the specific conditions of the middle roadway, the connection methods of the three-way distributor with the upper and lower transportation pipelines are different. The outlet of the transportation pipeline above the middle roadway 2 without a backfill stope is connected to the inlet end of the first three-way distributor 4. The first outlet end of the first three-way distributor 4 is connected to the inlet of the transportation pipeline below this middle roadway. The second outlet end of the first three-way distributor 4 faces the bottom surface of this middle roadway 2. The outlet of the transportation pipeline above the middle roadway 7 with a backfill stope is connected to the inlet end of the second three-way distributor 5. The first outlet end of the second three-way distributor 5 is connected to the inlet of the transportation pipeline below this middle roadway. The second outlet end of the second three-way distributor 5 is detachably connected to the pipeline of the backfill stope 6. In case of an accident, by adjusting the outlet directions of the three-way distributors in the middle roadway in need of rescue and the middle roadways above it, a rescue material transportation passage communicating with the middle roadway in need of rescue can be formed to targetedly transport rescue materials to the middle roadway in need of rescue. When an accident occurs in the middle roadway 7 with a backfill stope, by adjusting the outlet directions of the three-way distributors in this middle roadway and the middle roadways above it, the second outlet end of the second three-way distributor 5 is separated from the pipeline of the backfill stope 6 to form a rescue material transportation passage communicating with this middle roadway, and the materials can reach the bottom surface of this middle roadway. When there is no accident, by adjusting the outlet directions of the three-way distributors in the middle roadway 7 with a backfill stope and the middle roadways above it, the second outlet end of the second three-way distributor 5 is connected to the pipeline of the backfill stope 6 to form a filling pipeline passage for transporting filling slurry from the surface 1 to the underground backfill stope 6.

[0034] The mine rescue material transportation passage can be used as an emergency material transportation passage in case of an accident to quickly transport materials. When there is no accident, it can also be used as a temporary filling pipeline passage, but this rescue material transportation passage cannot be used as the main filling pipeline. This rescue material transportation passage should always be prepared for rescue. When this rescue material transportation passage is not in use, the first discharge ends of each first three-way distributor 4 and the first discharge ends of each second three-way distributor 5 should be opened, and the second discharge ends of each first three-way distributor 4 and the second discharge ends of each second three-way distributor 5 should be closed. The second discharge end of the second three-way distributor 5 is in a split state with the pipeline of the filling stope 6. Which middle-section roadway needs rescue can be achieved by only switching the discharge ends of the three-way distributors in this middle-section roadway.

[0035] In order to quickly carry out rescue in case of an emergency, a surface emergency rescue space is provided at the entrance of the transportation pipeline connecting to the surface 1, with a net height greater than 2 meters. Rescue facilities 8 are provided in the surface emergency rescue space. The rescue facilities 8 include emergency contact ropes, communication cables and equipment, and a lifting device installed above the entrance of the transportation pipeline on the surface, which is convenient for lowering and lifting emergency materials after an accident.

[0036] In this embodiment, the diameter of the transportation pipeline 3 can be 100mm - 250mm, and the first three-way distributor 4 and the second three-way distributor 5 can be electric-hydraulic three-way reversing valves or three-way pipes with manually disassembled and assembled blind plates.

[0037] In order to facilitate the connection of the three-way distributor with the upper and lower transportation pipeline ports and facilitate the transportation of materials, the horizontal distance between the outlet of the transportation pipeline above each middle-section roadway and the inlet of the transportation pipeline below is less than 1.5m.

[0038] A valve is provided at the entrance of the transportation pipeline connecting to the surface 1, and the valve can be a normally closed valve. Corresponding to the corresponding passage in the mine that can form local air bubbles in case of water inrush, the valve is closed when this rescue material transportation passage is not in use.

[0039] Figure 2 Schematic diagram of the structure of the mine rescue material transportation passage according to Embodiment 1 of the present invention connected to a rescue capsule. As Figure 2 shown, in this embodiment, in the middle-section roadway where there is no filling stope, the transportation pipeline can be connected to the rescue capsule 9 or the refuge chamber. Specifically, the second discharge end of the first three-way distributor 4 is connected to the rescue capsule 9 or the refuge chamber to provide a reliable oxygen supply and rescue communication channel for the rescue capsule 9 or the refuge chamber, and ensure the safety and reliability of the rescue capsule 9 or the refuge chamber. In the middle-section roadway 7 with a filling stope, the rescue capsule 9 can be placed beside the second three-way distributor 5, which is convenient for the trapped personnel to take shelter and obtain rescue materials.

[0040] To facilitate the quick access of the distressed personnel to the conveying pipeline, obvious signs are set at both the outlet and the inlet of the conveying pipeline in each intermediate roadway. In case of an emergency, the trapped personnel underground can reach the vicinity of the outlet of the conveying passage or take shelter in the nearby safety facilities in the shortest time, which is convenient for receiving surface rescue.

[0041] The rescue material conveying passage of this mine should be constructed in advance during the mine construction period before the shaft passages are not connected to each other, and can be used for emergency rescue during the construction period. It can effectively reduce the risk of long-term single-heading construction operations.

[0042] Embodiment 2

[0043] Figure 3 It is a flowchart of the mine rescue material conveying method according to Embodiment 2 of the present invention;

[0044] As Figure 3 shown, the mine rescue material conveying method provided in this embodiment is the usage method of the rescue material conveying passage in Embodiment 1, and the mine rescue material conveying passage in Embodiment 1 is used for conveying rescue materials. It includes the following steps:

[0045] If an accident occurs in a certain intermediate roadway above the filling stope 6, the first discharge end of the first three-way distributor 4 in the intermediate roadway 2 where the accident occurs is closed, and the second discharge end is opened. The first discharge ends of all the first three-way distributors 4 above this intermediate roadway are opened, and the second discharge ends are closed, forming a conveying passage from the ground surface 1 to the bottom surface of this intermediate roadway. The conveying passage below this intermediate roadway 2 is not accessible. The rescue facilities 8 are used to lower the rescue materials into the conveying pipeline connected to the ground surface 1, and the rescue materials directly reach the bottom surface of this intermediate roadway.

[0046] If an accident occurs in the intermediate roadway 7 with a filling stope, the first discharge end of the second three-way distributor 5 in this intermediate roadway is closed, and the second discharge end is opened, and the pipeline between the second discharge end and the filling stope 6 is disassembled. The first discharge ends of all the first three-way distributors 4 above this intermediate roadway are opened, and the second discharge ends are closed, forming a conveying passage from the ground surface 1 to the bottom surface of this intermediate roadway. The conveying passage below this intermediate roadway is not accessible. The rescue facilities 8 are used to lower the rescue materials into the conveying pipeline connected to the ground surface 1, and the rescue materials directly reach the bottom surface of this intermediate roadway.

[0047] If an accident occurs in the cross-heading below the filling stope, the first discharge end of the first three-way distributor 4 in this cross-heading is closed and the second discharge end is opened. The first discharge ends of all the first three-way distributors 4 above this cross-heading are opened and the second discharge ends are closed. The first discharge end of the second three-way distributor 5 above this cross-heading is opened and the second discharge end is closed, forming a transportation channel from the ground surface 1 to the bottom surface of this cross-heading. The transportation channel below this cross-heading is blocked. The rescue facilities 8 are used to lower the rescue materials into the transportation pipeline connected to the ground surface 1, and the rescue materials directly reach the bottom surface of this cross-heading.

[0048] The rescue materials directly reach the bottom surface of the cross-heading, and the trapped personnel can easily obtain them.

[0049] If no accident occurs, the first discharge end of the second three-way distributor 5 in the cross-heading 7 with the filling stope is closed and the second discharge end is opened. The second discharge end is connected to the pipeline of the filling stope 6 through an elbow. The first discharge ends of all the first three-way distributors 4 above the cross-heading of the filling stope are opened and the second discharge ends are closed, forming a filling pipeline channel from the ground surface 1 to the filling stope 6. The filling slurry is lowered into the transportation pipeline connected to the ground surface 1. This rescue material transportation channel can only be used as a temporary filling pipeline and cannot be used as the main filling pipeline.

[0050] The rescue material transportation channel of this mine should always be prepared for rescue. This rescue material transportation channel is not used most of the time. The first discharge end of each first three-way distributor 4 and the first discharge end of each second three-way distributor 5 should be opened, and the second discharge end of each first three-way distributor 4 and the second discharge end of each second three-way distributor 5 should be closed. The second discharge end of the second three-way distributor 5 is in a disassembled state with the pipeline of the filling stope 6. For which cross-heading needs rescue, only the discharge end of this cross-heading needs to be switched. The present invention realizes the rapid formation of a rescue material transportation channel.

[0051] The mine rescue material transportation channel and transportation method according to the present invention are described above by way of example with reference to the drawings. However, those skilled in the art should understand that various improvements can be made to the above-mentioned mine rescue material transportation channel and transportation method proposed by the present invention without departing from the content of the present invention. Therefore, the protection scope of the present invention should be determined by the content of the appended claims.

Claims

1. A method for transporting mine rescue supplies, characterized in that, The rescue materials are transported through the mine rescue material transportation channel, including the following steps: If an accident occurs in a middle roadway above the backfill stope, the first discharge end of the first three-way distributor in the middle roadway is closed, and the second discharge end is opened. The first discharge ends of all the first three-way distributors above the middle roadway are opened, and the second discharge ends are closed. The rescue materials are lowered into the transportation pipeline connected to the surface by using the rescue facilities; If an accident occurs in the middle roadway with a backfill stope, the first discharge end of the second three-way distributor in the middle roadway is closed, and the second discharge end is opened. The pipeline between the second discharge end and the backfill stope is disassembled. The first discharge ends of all the first three-way distributors above the middle roadway are opened, and the second discharge ends are closed. The rescue materials are lowered into the transportation pipeline connected to the surface by using the rescue facilities; If an accident occurs in the middle roadway below the backfill stope, the first discharge end of the first three-way distributor in the middle roadway is closed, and the second discharge end is opened. The first discharge ends of all the first three-way distributors above the middle roadway are opened, and the second discharge ends are closed. The first discharge end of the second three-way distributor above the middle roadway is opened, and the second discharge end is closed. The rescue materials are lowered into the transportation pipeline connected to the surface by using the rescue facilities; If no accident occurs, the first discharge end of the second three-way distributor in the middle roadway with a backfill stope is closed, and the second discharge end is opened. The first discharge ends of all the first three-way distributors above the middle roadway with a backfill stope are opened, and the second discharge ends are closed. The filling slurry is lowered into the transportation pipeline connected to the surface; The mine rescue material transportation channel includes a transportation pipeline connecting the surface and the uppermost middle roadway underground, and transportation pipelines connecting adjacent upper and lower middle roadways. Among them, The outlet of the transportation pipeline above the middle roadway without a backfill stope is connected with the first three-way distributor. The first discharge end of the first three-way distributor is connected with the inlet of the transportation pipeline below the middle roadway. The second discharge end of the first three-way distributor faces the bottom surface of the middle roadway; The outlet of the transportation pipeline above the middle roadway with a backfill stope is connected with the second three-way distributor. The first discharge end of the second three-way distributor is connected with the inlet of the transportation pipeline below the middle roadway. The second discharge end of the second three-way distributor is detachably connected with the pipeline of the backfill stope; A surface emergency rescue space is arranged at the inlet of the transportation pipeline connected to the surface, and the rescue facilities are arranged in the surface emergency rescue space; Both the first three-way distributor and the second three-way distributor are electric-hydraulic three-way reversing valves or three-way pipes with manually disassembled blind plates.

2. The mine rescue material transportation method according to claim 1, characterized in that, If the rescue material transportation channel is not in use, the first discharge ends of the first three-way distributor and the second three-way distributor are both opened, and the second discharge ends are both closed. The second discharge end of the second three-way distributor is disassembled from the pipeline of the backfill stope.

3. The mine rescue material transportation method according to claim 1, characterized in that, The diameter of the transportation pipeline is 100mm - 250mm.

4. The mine rescue material conveying method according to claim 1, wherein, A life-saving capsule or a refuge chamber is connected to the second discharge end of the first three-way material distributor.

5. The mine rescue material transportation method according to claim 1, characterized in that The rescue facilities include an emergency contact rope, a communication cable and equipment, and a hoisting device arranged above the inlet of a conveying pipeline communicating with the ground surface.

6. The mine rescue material conveying method according to claim 1, characterized in that, The horizontal distance between the outlet of the conveying pipeline above each intermediate roadway and the inlet of the conveying pipeline below is less than 1.5 m.

7. The mine rescue material conveying method according to claim 1, wherein A valve is arranged at the inlet of the conveying pipeline communicating with the ground surface.

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