Ventilation system for fully mechanized coal mining face of high-gas outburst mine

Abstract

The utility model discloses a ventilation system for a fully mechanized coal mining face of a high-gas outburst mine, which relates to the technical field of ventilation of high-gas mines and comprises a plurality of air inlet pipeline components mounted on the left side of the inner wall of the mine. The end of the air inlet pipeline assembly located at the outermost end is connected with an air feeder. The exhaust pipeline assemblies are mounted on the right side of the inner wall of the mine, the exhaust pipeline assemblies are sequentially connected in a threaded mode, and the end of the exhaust pipeline assembly located at the outermost end is connected with an exhaust fan. Every two adjacent air inlet pipeline assemblies or every two adjacent air outlet pipeline assemblies are connected through threaded connection between the outer threaded rings and the threaded sleeves, so that connection is simple and convenient, and the air inlet pipeline assemblies and the air outlet pipeline assemblies are matched to achieve replacement and flowing of air in a high gas mine. The gas concentration in the high-gas mine is reduced, and the air quality in the mine is improved.

Description

Technical Field

[0001] This utility model relates to the field of ventilation technology for high-gas mines, specifically to a ventilation system for a fully mechanized mining face in a high-gas outburst mine. Background Technology

[0002] A high-gas mine is a mine with a relative gas emission rate greater than 10 cubic meters per ton and an absolute gas emission rate greater than 40 cubic meters per minute. When gas reaches a certain concentration in a mine, it can cause breathing difficulties and physical discomfort for workers, and may even lead to explosions upon contact with sparks or static electricity. When working in a high-gas mine, the most effective and direct way to reduce the gas concentration in the tunnel working area is to ventilate the work area.

[0003] Currently, existing ventilation systems use a combination of blowers and intake ducts. Multiple intake ducts are connected together and installed on the inner wall of the mine. The intake ducts are mostly connected by bolts and flanges, which is cumbersome. Furthermore, due to the unevenness of the inner wall of the mine, the ends of adjacent intake ducts cannot be effectively aligned, making installation extremely inconvenient. Utility Model Content

[0004] The purpose of this invention is to provide a ventilation system for fully mechanized mining faces in high-gas outburst mines, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ventilation system for a fully mechanized mining face in a high-gas outburst mine, comprising:

[0006] Multiple air intake pipe assemblies are installed on the left side of the inner wall of the mine. The multiple air intake pipe assemblies are connected in sequence by threads. The end of the outermost air intake pipe assembly is connected to a blower.

[0007] Multiple exhaust pipe assemblies are installed on the right side of the inner wall of the mine. The multiple exhaust pipe assemblies are connected in sequence by threads. The end of the outermost exhaust pipe assembly is connected to a blower.

[0008] The air inlet duct assembly and the exhaust duct assembly have the same structure. Both the air inlet duct assembly and the exhaust duct assembly include a main air supply pipe. The side wall of the main air supply pipe is connected to multiple branch pipes. Both ends of the main air supply pipe are connected to regulating pipes. The end of the regulating pipe away from the main air supply pipe is connected to a connecting pipe. The end of the connecting pipe away from the regulating pipe is fixedly sleeved with an external threaded ring. A threaded sleeve is threaded onto the external threaded ring located on the right end.

[0009] Preferably, both ends of the main air supply pipe are fixedly fitted with fixing rings, and a support rod is fixed on the fixing ring. A connecting plate is fixed to the end of the support rod away from the fixing ring, and the connecting plate is provided with mounting holes to facilitate fixing the air inlet pipe assembly or the exhaust pipe assembly to the inner wall of the mine.

[0010] Preferably, the regulating pipe is a telescopic flexible pipe, which allows for a certain degree of expansion and contraction, enabling adjustment of the position of the connecting pipe and facilitating the alignment of the connecting pipe ends on two adjacent air inlet pipe assemblies or two adjacent exhaust pipe assemblies.

[0011] Preferably, a sealing gasket is fixed at the end of the external threaded ring away from the regulating pipe, which can improve the sealing performance of the connection between two adjacent air inlet pipe assemblies or two adjacent exhaust pipe assemblies.

[0012] Preferably, the threaded sleeve is fixed with handles at equal intervals on its outer side, so that force can be easily applied to the threaded sleeve through the handles, thereby facilitating the rotation of the threaded sleeve.

[0013] Preferably, the threaded sleeve is slidably fitted onto the connecting pipe located at the right end to limit the position of the threaded sleeve.

[0014] Preferably, the end of the branch pipe located on the exhaust pipe assembly is connected to a filter screen, which can filter the air entering the branch pipe during exhaust and intercept dust.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] 1. Two adjacent air inlet duct assemblies or two adjacent exhaust duct assemblies are connected by a threaded connection between an external threaded ring and a threaded sleeve, making the connection simple and convenient. Furthermore, the adjustable pipe is a flexible telescopic tube, which allows for a certain degree of expansion and contraction, enabling the adjustment of the position of the connecting pipe. This facilitates the alignment of the connecting pipe ends on two adjacent air inlet duct assemblies or two adjacent exhaust duct assemblies, improving the ease of installation.

[0017] 2. By installing multiple air intake pipe assemblies and multiple exhaust pipe assemblies on both sides of the inner wall of the mine, the air intake pipe assemblies introduce fresh air into the high-gas mine, while the exhaust pipe assemblies discharge the gas in the high-gas mine. This achieves air replacement and circulation in the high-gas mine, which helps to reduce the gas concentration in the high-gas mine, improve the air quality in the mine, and protect the health and safety of construction workers. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the installation of this utility model on the inner wall of a mine.

[0020] Figure 2 This is a schematic diagram showing the connection of multiple air inlet duct components according to this utility model;

[0021] Figure 3 This is a schematic diagram of the air inlet duct assembly structure of this utility model;

[0022] Figure 4 This is a three-dimensional sectional view of the connection between the connecting pipe and the threaded sleeve of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Air inlet duct assembly; 2. Exhaust duct assembly; 3. Main air supply pipe; 4. Branch pipe; 5. Regulating pipe; 6. Connecting pipe; 7. External threaded ring; 8. Threaded sleeve; 9. Fixing ring; 10. Support rod; 11. Connecting plate; 12. Handle. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figures 1 to 4 The ventilation system shown is for a fully mechanized mining face in a high-gas outburst mine, comprising:

[0027] Multiple air intake pipe assemblies 1 are installed on the left side of the inner wall of the mine. The multiple air intake pipe assemblies 1 are connected in sequence by threads. The end of the outermost air intake pipe assembly 1 is connected to a blower.

[0028] Multiple exhaust pipe assemblies 2 are installed on the right side of the inner wall of the mine. The multiple exhaust pipe assemblies 2 are connected in sequence by threads. The end of the outermost exhaust pipe assembly 2 is connected to a blower.

[0029] The air inlet duct assembly 1 and the exhaust duct assembly 2 have the same structure. Both the air inlet duct assembly 1 and the exhaust duct assembly 2 include a main air supply pipe 3. Multiple branch pipes 4 are connected to the side wall of the main air supply pipe 3. Both ends of the main air supply pipe 3 are connected to regulating pipes 5. A connecting pipe 6 is connected to the end of the regulating pipe 5 away from the main air supply pipe 3. An external threaded ring 7 is fixedly sleeved on the end of the connecting pipe 6 away from the regulating pipe 5. A threaded sleeve 8 is threadedly sleeved on the external threaded ring 7 located on the right end.

[0030] Both ends of the air supply main pipe 3 are fixedly fitted with fixing rings 9, and a support rod 10 is fixed on the fixing ring 9. A connecting plate 11 is fixed on the end of the support rod 10 away from the fixing ring 9. The connecting plate 11 has an installation hole to facilitate fixing the air inlet pipe assembly 1 or the exhaust pipe assembly 2 to the inner wall of the mine.

[0031] The regulating pipe 5 is a flexible telescopic pipe, which allows the regulating pipe 5 to have a certain degree of telescopic variation, and can adjust the position of the connecting pipe 6, so as to facilitate the alignment of the ends of the connecting pipe 6 on two adjacent air inlet pipe assemblies 1 or two adjacent exhaust pipe assemblies 2.

[0032] A sealing gasket is fixed at the end of the external threaded ring 7 away from the regulating pipe 5, which can improve the sealing of the connection between two adjacent air inlet pipe assemblies 1 or two adjacent exhaust pipe assemblies 2.

[0033] Handles 12 are fixed at equal intervals on the outer side of the threaded sleeve 8. The handles 12 facilitate the application of force to the threaded sleeve 8, thereby facilitating the rotation of the threaded sleeve 8.

[0034] The threaded sleeve 8 is slidably fitted onto the connecting pipe 6 located at the right end, thereby limiting the position of the threaded sleeve 8.

[0035] The end of the branch pipe 4 located on the exhaust pipe assembly 2 is connected to a filter screen, which can filter the air entering the branch pipe 4 during exhaust and intercept the dust.

[0036] In this invention, multiple air intake duct assemblies 1 and multiple exhaust duct assemblies 2 are respectively installed on both sides of the inner wall of the mine. The air intake duct assemblies 1 introduce fresh air into the high-gas mine, while the exhaust duct assemblies 2 exhaust the gas in the high-gas mine, realizing the replacement and flow of air in the high-gas mine. This helps to reduce the gas concentration in the high-gas mine, improve the air quality in the mine, and protect the health and safety of construction workers. The air intake duct assemblies 1 or exhaust duct assemblies 2 are easily fixed to the inner wall of the mine by the connecting plates 11 on them. Adjacent air intake duct assemblies 1 are connected to each other. First, two adjacent air intake pipe assemblies 1 are arranged and installed on the inner wall of the mine. The connecting pipe 6 on the air intake pipe assembly 1 is connected to the main air supply pipe 3 through an adjusting pipe 5. The adjusting pipe 5 is a flexible telescopic hose, which allows the adjusting pipe 5 to have a certain degree of expansion and contraction, so that the position of the connecting pipe 6 can be adjusted, which facilitates the alignment of the ends of the connecting pipe 6 on the two adjacent air intake pipe assemblies 1. Then, the threaded sleeve 8 is moved and rotated so that the threaded sleeve 8 is threaded onto the external threaded ring 7 on the two adjacent connecting pipes 6, thereby realizing the connection between the two adjacent air intake pipe assemblies 1. The connection between the two adjacent exhaust pipe assemblies 2 is carried out in the same way, which improves the convenience of installation.

[0037] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A ventilation system for a fully mechanized mining face in a high-gas outburst mine, characterized in that, include: Multiple air intake pipe assemblies (1) are installed on the left side of the inner wall of the mine. The multiple air intake pipe assemblies (1) are connected in sequence by threads. The end of the outermost air intake pipe assembly (1) is connected to a blower. Multiple exhaust pipe assemblies (2) are installed on the right side of the inner wall of the mine. The multiple exhaust pipe assemblies (2) are connected in sequence by threads. The end of the exhaust pipe assembly (2) located at the outermost end is connected to a blower. The air inlet duct assembly (1) and the exhaust duct assembly (2) have the same structure. Both the air inlet duct assembly (1) and the exhaust duct assembly (2) include a main air supply pipe (3). The side wall of the main air supply pipe (3) is connected to multiple branch pipes (4). Both ends of the main air supply pipe (3) are connected to regulating pipes (5). The end of the regulating pipe (5) away from the main air supply pipe (3) is connected to a connecting pipe (6). The end of the connecting pipe (6) away from the regulating pipe (5) is fixedly sleeved with an external threaded ring (7). A threaded sleeve (8) is threadedly sleeved on the external threaded ring (7) located on the right end.

2. The ventilation system for a fully mechanized mining face in a high-gas outburst mine according to claim 1, characterized in that: Both ends of the air supply main pipe (3) are fixedly fitted with fixing rings (9), and a support rod (10) is fixed on the fixing ring (9). A connecting plate (11) is fixed on the end of the support rod (10) away from the fixing ring (9), and an installation hole is provided on the connecting plate (11).

3. The ventilation system for a fully mechanized mining face in a high-gas outburst mine according to claim 1, characterized in that: The regulating pipe (5) is a telescopic flexible hose.

4. The ventilation system for a fully mechanized mining face in a high-gas outburst mine according to claim 1, characterized in that: A sealing gasket is fixed to the end of the external threaded ring (7) away from the adjusting tube (5).

5. A ventilation system for a fully mechanized mining face in a high-gas outburst mine according to claim 1, characterized in that: The threaded sleeve (8) has handles (12) fixed at equal intervals on its outer side.

6. A ventilation system for a fully mechanized mining face in a high-gas outburst mine according to claim 1, characterized in that: The threaded sleeve (8) is slidably fitted onto the connecting pipe (6) located at the right end.

7. A ventilation system for a fully mechanized mining face in a high-gas outburst mine according to claim 1, characterized in that: A filter screen is connected to the end of the branch pipe (4) located on the exhaust pipe assembly (2).

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