Rapid rescue safety guarantee device and method for coal mine

Abstract

The invention discloses a coal mine rapid rescue safety guarantee device and method, and relates to the technical field of coal mine rescue, the coal mine rapid rescue safety guarantee device comprises a protective cylinder, and a rescue safety channel is formed in the inner space of the protective cylinder; a rock drilling mechanism and a first conveying mechanism used for conveying chiseled broken stones to the outside of the safety channel are arranged in the protection barrel. The protective cylinder comprises a plurality of cylinder split bodies, the length of the cylinder split bodies is the same as that of the protective cylinder, and the cylinder split bodies surround the axis of the protective cylinder in the circumferential direction and are spliced to form the protective cylinder. A second conveying mechanism used for conveying the barrel body split bodies into the safety channel is further arranged in the protection barrel body. The rescue safety channel is constructed by adopting the protective cylinder formed by encircling and splicing the plurality of cylinder split bodies, the rescue safety channel is firm and reliable, secondary collapse cannot be caused, trapped people can be rescued in a short time, meanwhile, the safety of rescue workers is ensured, the protective cylinder can be repeatedly used, and the rescue cost is greatly saved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine rescue, and in particular to a coal mine rapid rescue safety assurance device and method. Background Art

[0002] Coal mines, the primary site for coal resource extraction, present a highly hazardous operating environment. Miners work within confined underground spaces, a dynamic environment subject to multiple risks, including the five major natural disasters of flooding, fire, gas, coal dust, and roof collapse, as well as mechanical and electrical accidents. With the surge in coal demand leading to deeper and more intensive mining, the incidence of roof collapse accidents continues to rise. Localized roof collapse has become the most common type of mining accident, posing a serious threat to miners' lives.

[0003] When a roof collapse occurs, miners are often trapped deep in complex underground tunnels. Due to the lengthy mine structure, the complex disaster site environment, and the difficulty in obtaining information, coupled with the significant limitations of existing rescue technologies: traditional manual excavation is inefficient, and large-scale machinery is constrained by the space and working conditions underground, which greatly reduces the chances of survival for trapped personnel. More importantly, the current temporary support methods for rescue tunnels are limited, posing a risk of secondary collapse and threatening the safety of rescue workers.

[0004] Frequent coal mine accidents not only cause significant casualties but also generate heavy economic burdens and social problems. Their impact transcends the industry and rises to the level of public safety. Therefore, developing equipment and methods that can quickly, safely, and economically reach trapped areas and implement effective rescue operations has become a critical issue in the current coal mine safety field. Summary of the Invention

[0005] The purpose of the present invention is to provide a coal mine rapid rescue safety assurance device and method to solve the problems existing in the above-mentioned prior art. By constructing a sturdy and reliable rescue safety passage, secondary collapse will not occur, which not only ensures that trapped people can be rescued in a short time, but also ensures the safety of rescuers.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] A coal mine rapid rescue safety assurance device includes a protective cylinder, the internal space of the protective cylinder forms a rescue safety passage; a rock drilling mechanism and a first conveying mechanism for conveying the drilled gravel to the outside of the safety passage are arranged inside the protective cylinder; the protective cylinder includes a plurality of cylinder splits, the lengths of the plurality of cylinder splits are the same as that of the protective cylinder, and the plurality of cylinder splits are circumferentially spliced around the axis of the protective cylinder to form the protective cylinder; a second conveying mechanism for conveying the cylinder splits to the inside of the safety passage is also arranged inside the protective cylinder.

[0008] In an exemplary embodiment, the first conveying mechanism includes a material gathering mechanism, a scraper feeding mechanism and a conveyor belt which are sequentially arranged from the inside to the outside.

[0009] In an exemplary embodiment, a solid support structure is provided at the bottom of the protection cylinder for people to walk on and to provide a support platform for the structure inside the protection cylinder.

[0010] In an exemplary embodiment, the rock drilling mechanism is a pneumatic rock drill, and the pneumatic rock drill is provided with an air supply pipeline leading to the outside of the safety passage.

[0011] In an exemplary embodiment, the second conveying mechanism adopts a reaction force pushing device, which is connected to the power output device through a universal joint. The reaction force pushing device includes an annular rigid body and a plurality of jacks circumferentially arranged on the annular rigid body. The plurality of jacks are radially arranged with the axis of the annular rigid body as the center, and the moving ends of the plurality of jacks are away from the center of the annular rigid body.

[0012] In an exemplary embodiment, a fresh air duct for conveying fresh air into the safety passage is further provided in the protection cylinder.

[0013] In an exemplary embodiment, a lighting device is further provided in the protective cylinder.

[0014] In an exemplary embodiment, the adjacent cylinder bodies are spliced and fixed by a fixing device.

[0015] The present invention also provides a coal mine rapid rescue method, which uses the above-mentioned rapid rescue safety assurance device and includes the following steps:

[0016] Step 1: After a hazardous incident occurs, formulate an emergency rescue plan, understand the situation at the scene and key data of the incident location, transport the rapid rescue safety protection device to the accident site, and assemble it;

[0017] Step 2: operating the rock drilling mechanism to clear the collapsed rocks, and transporting the cleared rocks to the outside of the rescue safety passage formed by the protective cylinder through the first conveying mechanism;

[0018] Step 3: After clearing out the rocks to a sufficient depth, the outer cylinder is transported into the newly cleared space by the second conveying mechanism and assembled into the protective cylinder described in the second section;

[0019] Step 4: Move the rock drilling mechanism to the front end of the second section of the protective cylinder, and extend the first conveying mechanism to the front end of the second section of the protective cylinder; the second conveying mechanism returns to the entrance of the safety passage and stands by;

[0020] Step 5: Repeat steps 2-4. When trapped persons are found, they are transported to a safe location through the safety passage and lifted up to the well for treatment.

[0021] Compared with the prior art, the present invention has achieved the following technical effects:

[0022] 1. A rescue safety passage is constructed by using a protective cylinder composed of multiple cylinders that are split and spliced together. It is strong and reliable and will not cause secondary collapse. It not only ensures that the trapped people can be rescued in a short time, but also ensures the safety of the rescuers. The protective cylinder can be reused, which greatly saves rescue costs.

[0023] 2. The protective cylinder adopts a splicing and assembly structure, which greatly reduces its minimum unit volume and weight, improves its maneuverability, and can quickly reach the rescue site by vehicle or other means.

[0024] 3. By adopting the first conveying mechanism to transport the cleared gravel outward, the labor intensity of the rescue personnel is reduced, and the rocks can be discharged without relying on manpower. It has strong adaptability, flexible operation and high rescue efficiency.

[0025] Other technical solutions disclosed in the present invention also have the following technical advantages:

[0026] 4. By adopting a protective cylinder composed of multiple cylinder parts connected together, when building a rescue safety passage, the cylinder parts can be transported forward from the first section of the protective cylinder, and then the second section of the protective cylinder can be assembled inside the newly cleared passage. Compared with traditional temporary support, this ensures the solidity and reliability of the safety passage and greatly reduces the difficulty of transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0028] Figure 1 This is a schematic structural diagram of a coal mine rapid rescue safety assurance device disclosed in a specific embodiment of the present invention;

[0029] Figure 2 for Figure 1 lateral view of;

[0030] Figure 3 for Figure 1 Schematic diagram of the structure of the middle protection cylinder;

[0031] Figure 4 for Figure 1 A schematic structural diagram of the second conveying mechanism;

[0032] in:

[0033] 1. Protective cylinder; 101. Cylinder split; 102. Fixing device;

[0034] 2. Rock drilling mechanism; 201. Gas supply pipeline;

[0035] 3. First conveying mechanism; 301. Material gathering mechanism; 302. Scraper feeding mechanism; 303. Conveyor belt;

[0036] 4. Second conveying mechanism; 401. Annular rigid body; 402. Jack; 403. Universal joint; 404. Power output device;

[0037] 5. Physical support device;

[0038] 6. Fresh air duct;

[0039] 7. Lighting devices;

[0040] 8. Protective cover. DETAILED DESCRIPTION

[0041] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. People familiar with this technology can easily understand other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0042] The purpose of the present invention is to provide a coal mine rapid rescue safety assurance device and method to solve the problems existing in the prior art. By constructing a sturdy and reliable rescue safety passage 00, secondary collapse will not occur, which not only ensures that trapped people can be rescued in a short time, but also ensures the safety of rescuers.

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Example 1

[0045] Please refer to Figures 1 to 4 The present embodiment provides a coal mine rapid rescue safety assurance device, including a protective cylinder 1, the internal space of the protective cylinder 1 forming a rescue safety passage 00; a rock drilling mechanism 2 and a first conveying mechanism 3 for conveying the drilled gravel to the outside of the safety passage 00 are provided in the protective cylinder 1; the protective cylinder 1 includes a plurality of cylinder segments 101, the lengths of the plurality of cylinder segments 101 are the same as that of the protective cylinder 1, and the plurality of cylinder segments 101 are circumferentially spliced around the axis of the protective cylinder 1 to form the protective cylinder 1; a second conveying mechanism 4 for conveying the cylinder segments 101 to the inside of the safety passage 00 is also provided in the protective cylinder 1.

[0046] The first conveying mechanism 3 includes a material gathering mechanism 301 , a scraper feeding mechanism 302 and a conveyor belt 303 which are arranged in sequence from the inside to the outside. A protective cover 8 is provided on the outer periphery of the first conveying mechanism 3 .

[0047] The cross-sectional shape of the protective cylinder 1 can be determined according to the actual construction conditions, and the number of cylinder segments 101 can also be determined according to the conveying capacity of the second conveying mechanism 4 under actual working conditions. If the load-bearing capacity of the second conveying mechanism 4 is sufficient, the fewer the cylinder segments 101, the better, and the size of the cross-section of each cylinder segment 101 must be ensured to be accommodated in the cross-section of the protective cylinder 1 to ensure that the cylinder segments 101 can be smoothly conveyed in the protective cylinder 1.

[0048] like Figure 3 As shown, in this embodiment, the circular protective cylinder 1 is taken as an example, the number of cylinder segments 101 is four, and the cross section is a quarter arc shape. If a rectangular structure is adopted, the number of cylinder segments 101 can also be four, and the cross section is an L-shape at the four corners of the rectangle.

[0049] Adjacent cylinder segments 101 are spliced and fixed by a fixing device 102 .

[0050] The material of the cylinder body 101 is generally steel with sufficient strength and low cost.

[0051] A solid support structure 5 is provided at the bottom of the protective cylinder 1, providing a platform for personnel to walk on and for supporting structures within the protective cylinder 1. This structure is typically used with circular or elliptical protective cylinders 1, which lack a flat surface for walking on or for placing structures such as the first and second conveying mechanisms 3 and 4. Therefore, the solid support structure 5 forms a flat support platform. Of course, when used with a rectangular protective cylinder 1 with a flat surface, the solid support structure 5 can also serve as a platform for raising the level of the platform to meet various usage requirements.

[0052] The rock drilling mechanism 2 can utilize rock drilling equipment of suitable size and specifications available in the prior art. In this embodiment, a pneumatic rock drill is preferably employed. The pneumatic rock drill is provided with an air supply pipe 201 leading to the exterior of the safety passage 00. A pneumatic rock drill, also known as a pneumatic drill, is a percussive drilling machine powered by compressed air. Based on the propulsion method, it is categorized into handheld rock drills, air-leg rock drills, telescopic upward rock drills, and rail-type rock drills. These rock drills can operate in various caverns. They are lightweight, consume little gas, and are particularly suitable for mobile operation with a small air compressor. They offer numerous advantages, including flexible startup, air-water linkage, energy efficiency, reliability, ease of operation, and ease of maintenance.

[0053] The second conveying mechanism 4 utilizes a counter-force push device connected to a power output device 404 via a universal joint 403. The counter-force push device comprises an annular rigid body 401 and multiple jacks 402 circumferentially arranged around the body 401. The jacks 402 are radially arranged around the axis of the body 401, with their movable ends positioned away from the center of the body 401. The power output device 404 draws rotational power from the motor and transmits this power to the input shafts of the jacks 402 via the universal joint 403.

[0054] Furthermore, a fresh air duct 6 for conveying fresh air into the safety passage 00 and a lighting device 7 for providing lighting are also provided in the protective cylinder 1.

[0055] Example 2

[0056] This embodiment provides a coal mine rapid rescue method, which uses the rapid rescue safety assurance device of embodiment 1 and includes the following steps:

[0057] Step 1: After a hazardous incident occurs, an emergency rescue plan is formulated as soon as possible. The emergency rescue leadership team immediately understands the situation at the scene and key data of the incident location, transports the rapid rescue safety assurance device to the accident site by vehicle or other means of transportation, and assembles it.

[0058] Step 2: Rescue workers operate the rock drilling mechanism 2 to clear the collapsed rocks. The cleared rocks are collected by the collecting device 301 of the first conveying mechanism 3 and fed into the scraper feeding mechanism 302. The rocks then fall from the scraper feeding mechanism 302 onto the conveyor belt 303. The rocks are then transported by the conveyor belt 303 to the outside of the rescue safety passage 00 formed by the protective cylinder 1.

[0059] Step 3: After clearing out the rocks to a sufficient depth, the second conveying mechanism 4 conveys the plurality of external cylinder segments 101 into the newly cleared space, and then the cylinder segments 101 are spliced and assembled together in the space by the fixing device 102 to finally assemble into the second section of the protective cylinder 1;

[0060] Step 4: Move the rock drilling mechanism 2 to the front end of the second section of the protective cylinder 1, lay the solid support structure 5, and extend the first conveying mechanism 3 to the front end of the second section of the protective cylinder 1. Mainly move the material collection mechanism 301 and the scraper feeding mechanism 302 forward, and then extend the conveyor belt 303. At the same time, the fresh air duct 6 is also moved forward to ensure sufficient length at the rear, and a new lighting device 7 is installed in the second section of the protective cylinder 1. The second conveying mechanism 4 returns to the entrance of the safety passage 00 and waits.

[0061] Step 5. Repeat steps 2-4. When trapped persons are found, they will be transported to a safe location through safety passage 00 and lifted up to the well for treatment.

[0062] The coal mine rapid rescue safety assurance device and method provided by the present invention can quickly carry out excavation, greatly ensuring the safety of rescuers and trapped persons. The constructed rescue safety passage is strong and reliable, and will not cause secondary collapse. This ensures that trapped persons can be rescued in a short time while also ensuring the safety of rescuers. In addition, the protective cylinder 1 can be reused, greatly saving rescue costs.

[0063] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only used to facilitate the description of the present invention, and do not imply or require that the device or element referred to must have a specific orientation or construction method, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the objects of description and should not be understood as limiting the importance or order, and the features defined by such terms may explicitly or implicitly include one or more such features. Unless otherwise specified, "multiple" in the description of the present invention refers to two or more.

[0064] The terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly defined, including but not limited to fixed connection, detachable connection or one-piece connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two elements. Those skilled in the art can understand their meaning based on the specific technical solution. The fixed connection involved in the present invention, unless otherwise stated, includes both detachable fixed connections (such as bolts, screw connections) and non-detachable fixed connections (such as riveting, welding), and may also include an integral structure achieved by an one-piece molding process (such as casting) (except for those that obviously cannot be one-piece molded).

[0065] Unless otherwise stated, the terms used in any technical solution disclosed in the present invention to express positional relationships or shapes all cover states or shapes that are approximate, similar or close thereto.

[0066] Any component provided by the present invention may be assembled from multiple separate components, or may be a separate component manufactured by an integral molding process.

[0067] It should be noted that the structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0068] In the embodiments of the present application, the same reference numerals are used to represent the same component or the same part.

[0069] Adaptive changes based on actual needs are all within the scope of protection of the present invention.

[0070] It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0071] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only intended to help understand the method and core concept of the present invention. At the same time, those skilled in the art will find that the specific implementation methods and application scopes may vary based on the concept of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims

1. A coal mine rapid rescue safety device, characterized by: The invention comprises a protective cylinder (1), the internal space of which forms a rescue safety passage (00); a rock drilling mechanism (2) and a first conveying mechanism (3) for conveying the rock fragments drilled out to the outside of the safety passage (00) are arranged in the protective cylinder (1); the protective cylinder (1) comprises a plurality of cylinder segments (101), the lengths of the plurality of cylinder segments (101) being the same as that of the protective cylinder (1), and the plurality of cylinder segments (101) are circumferentially spliced around the axis of the protective cylinder (1) to form the protective cylinder (1); a second conveying mechanism (4) for conveying the cylinder segments (101) to the inside of the safety passage (00) is also arranged in the protective cylinder (1).

2. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: The first conveying mechanism (3) comprises a material gathering mechanism (301), a scraper feeding mechanism (302) and a conveying belt (303) which are arranged in sequence from the inside to the outside.

3. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: A solid support structure (5) is provided at the bottom of the protective cylinder (1) for allowing people to walk and providing a support platform for the structure inside the protective cylinder (1).

4. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: The rock drilling mechanism (2) adopts a pneumatic rock drill, and the pneumatic rock drill is provided with an air supply pipe (201) leading to the outside of the safety passage (00).

5. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: The second conveying mechanism (4) adopts a reaction force pushing device, which is connected to the power output device (404) through a universal joint (403). The reaction force pushing device includes an annular rigid body (401) and a plurality of jacks (402) circumferentially arranged on the annular rigid body (401). The plurality of jacks (402) are radially arranged with the axis of the annular rigid body (401) as the center, and the moving ends of the plurality of jacks (402) are away from the center of the annular rigid body (401).

6. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: A fresh air duct (6) for conveying fresh air into the safety passage (00) is also provided in the protection cylinder (1).

7. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: A lighting device (7) is also provided in the protective cylinder (1).

8. The coal mine rapid rescue safety assurance device according to claim 1, characterized in that: The adjacent cylinder segments (101) are spliced and fixed by a fixing device (102).

9. A coal mine rapid rescue method, characterized in that: The rapid rescue safety guarantee device according to any one of claims 1 to 8 comprises the following steps: Step 1: After a hazardous incident occurs, formulate an emergency rescue plan, understand the situation at the scene and key data of the incident location, transport the rapid rescue safety protection device to the accident site, and assemble it; Step 2: operating the rock drilling mechanism (2) to clear the collapsed rocks, and the cleared rocks are transported to the outside of the rescue safety passage (00) formed by the protective cylinder (1) through the first transport mechanism (3); Step 3: After clearing out rocks to a sufficient depth, the outer cylinder body (101) is transported into the newly cleared space by the second transport mechanism (4) and assembled into the second section of the protective cylinder body (1); Step 4: Move the rock drilling mechanism (2) to the front end of the second section of the protective cylinder (1), and extend the first conveying mechanism (3) to the front end of the second section of the protective cylinder (1); the second conveying mechanism (4) returns to the entrance of the safety passage (00) and waits for operation; Step 5: Repeat steps 2-4. When the trapped person is found, he / she is transported to a safe location through the safety passage (00) and lifted up to the well for treatment.

Images