Coal mine underground safety ventilation device

Abstract

The utility model relates to the field of mine mining, in particular to an underground coal mine safety ventilation device which comprises an exhaust fan, an output end of the exhaust fan is communicated with an upper air guide pipe, the tail end of the upper air guide pipe is fixedly connected with an upper flange, and the lower end of the upper flange is connected with a pipeline flange in a bolt fastening mode. The lower end of the connecting pipe is fixedly connected with a pipeline flange, the lower end of the pipeline flange is fixedly connected with a lower flange through a bolt, and the lower end of the lower flange is fixedly connected with a lower air guide pipe; the mine ventilation device has the advantages that due to the fact that the respirator is arranged, when part of harmful gas leaks suddenly, and the harmful gas cannot be exhausted in time, mine workers can achieve emergency self-rescue by wearing the respirator, and the safety of the ventilation device is improved.

Description

Technical Field

[0001] The utility model relates to the field of mine exploitation, in particular to a safety ventilation device for coal mines underground. Background Technique

[0002] It is the area where humans exploit coal resources in coal-rich mining areas, generally divided into underground coal mines and surface coal mines. When the coal seam is far from the surface, generally choose to dig tunnels underground to extract coal, which is an underground coal mine. When the distance between the coal seam and the surface is very close, generally choose to directly strip the surface soil layer to excavate coal, which is a surface coal mine. When constructing in an underground coal mine, it is necessary to ventilate the interior to prevent workers from being invaded by dangerous gases inside.

[0003] Traditional ventilation devices usually only conduct overall ventilation treatment on the inside of the pipeline. When a large amount of sudden leakage of some harmful gases occurs, the ventilation device cannot timely and completely and effectively discharge the harmful gases, which may cause certain harm. Therefore, the utility model proposes a safety ventilation device for coal mines underground to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a safety ventilation device for coal mines underground to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A safety ventilation device for coal mines underground, including an exhaust fan, the output end of the exhaust fan is connected to an upper air duct, the end of the upper air duct is fixedly connected with an upper flange, the lower end of the upper flange is bolted and fastened to a pipeline flange, the lower end of the pipeline flange is fixedly connected with a connecting pipe, the lower end of the connecting pipe is fixedly connected with a pipeline flange, the lower end of the pipeline flange is bolted and fastened to a lower flange, and the lower end of the lower flange is fixedly connected with a lower air duct.

[0006] Preferably, a placement rack is fixedly connected to the side end of the lower air duct, and a sealing plug is fixedly connected to the inside of the placement rack.

[0007] Preferably, a gas guide hose is fixedly connected and communicated to the lower end of the lower flange, the end of the gas guide hose is communicated with a breathing mask, and an elastic sleeve is fixedly connected to the outside of the breathing mask.

[0008] Preferably, the breathing mask is correspondingly inserted into the sealing plug.

[0009] Preferably, a breathable pipe is fixedly connected and communicated to the side end of the connecting pipe, and the lower end of the breathable pipe is communicated with the gas guide hose.

[0010] Preferably, the upper end of the breathable pipe is communicated with a breathable fixed connecting pipe, and the upper end of the breathable fixed connecting pipe is fixedly connected and communicated to the upper air duct.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] By providing a breathing mask, when a large amount of sudden leakage of some harmful gases occurs and the harmful gases cannot be discharged in time, the mine workers can wear the breathing mask to achieve emergency self-rescue, improving the safety of the ventilation device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic structural diagram of the connection component of the present utility model;

[0015] Figure 3 is a schematic diagram of a partial structure of the present utility model;

[0016] Figure 4 is a schematic diagram of the connection of a partial structure of the present utility model.

[0017] In the figure: 1 exhaust fan, 2 upper air duct, 3 connecting pipe, 4 air permeable pipe, 5 lower air duct, 6 air guiding hose, 7 air permeable fixed connection pipe, 8 upper flange, 9 pipe flange, 10 lower flange, 11 breathing mask, 12 elastic sleeve, 13 placement rack, 14 sealing plug. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to clearly and completely describe the purpose and technical solution of the present utility model, and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all of the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0019] In the description of the present utility model, it should be noted that the terms "center", "middle", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model. In addition, the terms "one", "first", "second", "third", "fourth", "fifth", "sixth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0020] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0021] For the purposes of simplicity and illustration, the principles of the embodiments are mainly described by reference to examples. In the following description, many specific details are set forth in order to provide a thorough understanding of the embodiments. However, it is obvious that for those of ordinary skill in the art, these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail so as not to unnecessarily obscure these embodiments. Additionally, all the embodiments can be used in combination with each other.

[0022] Please refer to Figures 1 to 4 , the present utility model provides a technical solution: a safety ventilation device for coal mines underground, characterized in that: it includes an exhaust fan 1, the output end of the exhaust fan 1 is connected to an upper air duct 2, the end of the upper air duct 2 is fixedly connected to an upper flange 8, the lower end of the upper flange 8 is bolted and fastened to a pipe flange 9, the lower end of the pipe flange 9 is fixedly connected to a connecting pipe 3, the lower end of the connecting pipe 3 is fixedly connected to a pipe flange 9, the lower end of the pipe flange 9 is bolted and fastened to a lower flange 10, the lower end of the lower flange 10 is fixedly connected to a lower air duct 5, the exhaust fan 1 is used to exchange the gas in the construction environment through the connecting pipe 3 and the lower air duct 5, and the number of the connecting pipes 3 can be adjusted according to the depth of the coal mine shaft to achieve adaptation to the corresponding depth.

[0023] A placement rack 13 is fixedly connected to the side end of the lower air duct 5, a sealing plug 14 is fixedly connected to the inner side of the placement rack 13, a gas guide hose 6 is fixedly connected and communicated to the lower end of the lower flange 10, a breathing mask 11 is communicated to the end of the gas guide hose 6, an elastic sleeve 12 is fixedly connected to the outer side of the breathing mask 11, the breathing mask 11 is correspondingly inserted on the sealing plug 14, a vent pipe 4 is fixedly connected and communicated to the side end of the connecting pipe 3, the lower end of the vent pipe 4 is communicated to the gas guide hose 6, the upper end of the vent pipe 4 is fixedly connected and communicated to a vent fixed connecting pipe 7, the upper end of the vent fixed connecting pipe 7 is fixedly connected and communicated to the upper air duct 2, the vent pipe 4 is used to communicate with the exhaust fan 1 to provide fresh air inside the breathing mask 11, and workers can wear it through the elastic sleeve 12. When storing, the breathing mask 11 can be inserted on the sealing plug 14.

[0024] In actual use, the exhaust fan 1 is used to exchange the gas in the construction environment through the connecting pipe 3 and the lower air duct 5, and the number of the connecting pipes 3 can be adjusted according to the depth of the coal mine shaft to achieve adaptation to the corresponding depth. The upper end of the air-permeable fixed connecting pipe 7 is fixedly connected to the upper air duct 2. The air-permeable pipe 4 is used to communicate with the exhaust fan 1 to provide fresh air in the breathing mask 11. Workers can wear it through the elastic sleeve 12. When storing, the breathing mask 11 can be inserted into the sealing plug 14.

[0025] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety ventilation device for underground coal mines, characterized in that: Including An exhaust fan (1), an upper air duct (2) is connected to the output end of the exhaust fan (1), an upper flange (8) is fixedly connected to the end of the upper air duct (2), a pipe flange (9) is bolted and fastened to the lower end of the upper flange (8), a connecting pipe (3) is fixedly connected to the lower end of the pipe flange (9), a pipe flange (9) is fixedly connected to the lower end of the connecting pipe (3), a lower flange (10) is bolted and fastened to the lower end of the pipe flange (9), and a lower air duct (5) is fixedly connected to the lower end of the lower flange (10).

2. The safety ventilation device for underground coal mines according to claim 1, characterized in that: A placement rack (13) is fixedly connected to the side end of the lower air duct (5), and a sealing plug (14) is fixedly connected to the inner side of the placement rack (13).

3. A mine underground safety ventilation device according to claim 1, characterized in that: A gas guide hose (6) is fixedly connected and communicated to the lower end of the lower flange (10), a breathing mask (11) is communicated to the end of the gas guide hose (6), and an elastic sleeve (12) is fixedly connected to the outer side of the breathing mask (11).

4. The safety ventilation device for underground coal mines according to claim 3, wherein: The breathing mask (11) is correspondingly inserted on the sealing plug (14).

5. A safety ventilation device for underground coal mines according to claim 1, characterized in that: A breather pipe (4) is fixedly connected and communicated to the side end of the connecting pipe (3), and the lower end of the breather pipe (4) is communicated to the gas guide hose (6).

6. The safety ventilation device for coal mines underground according to claim 5, characterized in that: The upper end of the breather pipe (4) is communicated with a breather fixedly connected pipe (7), and the upper end of the breather fixedly connected pipe (7) is fixedly connected and communicated to the upper air duct (2).

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