CN219139106U - Air duct for underground mine roadway crossing - Google Patents
Air duct for underground mine roadway crossing Download PDFInfo
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- CN219139106U CN219139106U CN202223422899.5U CN202223422899U CN219139106U CN 219139106 U CN219139106 U CN 219139106U CN 202223422899 U CN202223422899 U CN 202223422899U CN 219139106 U CN219139106 U CN 219139106U
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- air duct
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- tunneling
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Abstract
The utility model provides an air duct for an underground mine roadway opening, which belongs to the technical field of underground mines and comprises an air duct, wherein one end of the air duct is connected with an air duct outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; and a turning connecting piece is arranged at the intersection of the tunneling roadway and used for connecting the wind barrel bodies in the crossed tunneling roadway. The beneficial effects are as follows: only the hard turning connecting piece is arranged at the intersection of the roadway so as to realize the communication of the air cylinders in the plurality of roadways. The technical effects of prolonging the service life of the air duct and improving the ventilation efficiency of the air duct are achieved.
Description
Technical Field
The utility model relates to the technical field of underground mines, in particular to an air duct for an underground mine roadway junction.
Background
In the coal mine tunnel tunneling process, air is supplied to a tunneling tunnel through a local ventilator, toxic and harmful gases and dust in the tunnel are removed, and fresh air is supplied to operators; the ventilation air duct is used for communicating the inlet of the tunneling tunnel with the fresh air flow tunnel, one end of the air duct is connected with the air outlet of the ventilator, and then the ventilation air duct is arranged to the tunneling working face along the tunneling tunnel in a extending mode. The rubber cloth wind cylinder is made of thermoplastic composite material composed of rubber, cotton thread or steel wire. Because a plurality of roadway ports exist in the roadway, an air duct turning is required to be arranged at the roadway ports; however, the wind drum turns around and has the defects that the wind speed is reduced and the wind drum is easy to scratch by a truck.
Therefore, a long-life and high-ventilation-efficiency air duct for the roadway junction of the underground mine is needed.
Disclosure of Invention
The utility model aims to provide an air duct for an underground mine roadway junction, which achieves the technical effect of safely and efficiently ventilating the air duct.
An air duct for an underground mine roadway opening comprises an air duct, wherein one end of the air duct is connected with an air duct outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; the dryer includes: the wind tunnel body and the turning connecting piece is used for connecting the wind tunnel bodies; and the turning connecting piece is arranged at the intersection of the tunneling roadways and is used for connecting the wind cylinder bodies in the crossed tunneling roadways.
Further, the preferable structure is that the turning connecting piece comprises a bending part and at least two connecting parts, wherein the connecting parts are used for connecting the wind barrel bodies in the crossed tunneling roadways; the connecting parts are connected through the bending parts.
Further, it is preferable that, when the number of the connecting portions is two, the corner connecting member is a two-way joint;
when the number of the connecting parts is three, the turning connecting piece is a three-way joint.
Further, it is preferable that the corner connector is a piece of iron or fiberglass.
Further, the preferable structure is that a sealing collar and a tightening iron wire are arranged at the joint of the turning connecting piece and the air duct body.
Further, it is preferable that the air duct body is provided with an anti-reflux device.
As described above, the air duct for the underground mine roadway opening comprises one end of the air duct connected with the air duct outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; the air duct comprises an air duct body and a turning connecting piece used for connecting the air duct bodies; and a turning connecting piece is arranged at the intersection of the tunneling roadway and used for connecting the wind barrel bodies in the crossed tunneling roadway. The beneficial effects are as follows: only the hard turning connecting piece is arranged at the intersection of the roadway so as to realize the communication of the air duct bodies in the plurality of roadways. The technical effects of prolonging the service life of the air duct and improving the ventilation efficiency of the air duct are achieved.
Drawings
Other objects and results of the present utility model will become more apparent and readily appreciated by reference to the following description and claims in conjunction with the accompanying drawings and a more complete understanding of the utility model.
In the drawings:
fig. 1 is a schematic structural view of a wind tunnel for an underground mine roadway junction according to embodiment 1 of the present utility model.
Fig. 2 is a schematic structural view of a wind tunnel for an underground mine roadway junction according to embodiment 2 of the present utility model.
In the figure: 1. a wind barrel body; 2. a bending part; 3. a first connection portion; 4. a second connecting portion; 5. and a third connecting part.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to facilitate describing one or more embodiments.
It is to be understood that the terms "horizontal," "vertical," "upper," "lower," "top," "middle," "length," "inner," "bottom," and the like are merely used for convenience in describing and simplifying the description of the present utility model, and are not to be construed as limiting the present utility model, as the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation.
Unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly, as they may be fixed, removable, or integral, for example; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Various embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.
Example 1
Fig. 1 illustrates the overall structure of a duct for an underground mine roadway junction. Specifically, fig. 1 is a schematic structural view of a wind tunnel for an underground mine roadway junction according to embodiment 1 of the present utility model; as shown in fig. 1, an air duct for an underground mine roadway opening comprises an air duct, wherein one end of the air duct is connected with an air duct outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; the air duct comprises an air duct body 1 and a turning connecting piece 2 used for connecting the air duct bodies 1; and a turning connecting piece is arranged at the intersection of the tunneling roadway and is used for connecting the wind tunnel body 1 in the crossed tunneling roadway. The turning connecting piece comprises a bending part 2 and two connecting parts, wherein the first connecting part 3 and the second connecting part 4 are used for connecting wind tunnel bodies in crossed tunneling tunnels; the connecting parts are connected through the bending parts 2. That is, the corner connector is a two-way connector. In a specific implementation, the corner connector is a ferrous object. The flexible air duct body mainly comprises a rubber air duct, a plastic air duct and a rubber and plastic air duct, wherein the air duct is made of glass fiber cloth, glass cotton interwoven cloth, chemical fiber cloth and the like serving as framework materials, and rubber and plastic coated cloth. Has the characteristics of flame retardance, antistatic property, better flexibility and light weight. By arranging the turning connecting piece, the hard turning connecting piece is only required to be arranged at the intersection of the roadway, so that the air duct bodies in a plurality of roadways are communicated. The technical effects of prolonging the service life of the air duct and improving the ventilation efficiency of the air duct are achieved.
As the improvement of this embodiment, in order to further increase the connection leakproofness of turning connecting piece and dryer body, be provided with sealed neck ring and tie up the iron wire in the junction of turning connecting piece and dryer body. Specifically, a collar (i.e., a sealing collar) is first made. The specification and the dimensions of the compass are as follows: an iron sheet circle with the thickness of 1mm and the width of 100mm is slightly smaller than the diameter of the air duct body 1, and two reinforcing steel bars are welded outside the circle. One end of the air duct body passes through the roller ring (note that the air duct body connected inside is positioned on the windward side, and wind resistance is reduced). And the end head of the through air duct body is turned over by 250-300mm. Then, the next section of air cylinder body is sleeved outside the loop, and the sleeved length is not less than 200-250mm. The ends of the two sections of air duct bodies are turned over and then are tied firmly by iron wires. Wherein, the inner diameter of the flexible air duct of the local ventilator is 300mm, 400mm, 450mm, 500mm, 600mm, 800mm, 1000mm, etc.; the length is 5m, 10m, 20m, etc.
In a specific implementation process, in order to prevent gas backflow during protrusion, a reverse flow device is arranged on the air duct body 1. Specifically, in addition to providing a firm and reliable reverse flow damper on the air inlet side, consideration must be given to the provision of a reverse flow prevention means where the partial fan air drum passes through the damper wall.
Example 2
Fig. 2 illustrates the overall structure of a duct for an underground mine roadway junction. Specifically, fig. 2 is a schematic structural view of a wind tunnel for an underground mine roadway junction according to embodiment 2 of the present utility model;
as shown in fig. 2, an air duct for an underground mine roadway opening comprises an air duct, wherein one end of the air duct is connected with an air duct outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; the air duct comprises an air duct body 1 and a turning connecting piece 2 used for connecting the air duct bodies 1; and a turning connecting piece is arranged at the intersection of the tunneling roadways and is used for connecting the wind cylinders 1 in the crossed tunneling roadways. The turning connecting piece comprises a bending part 2 and three connecting parts, wherein the first connecting part 3, the second connecting part 4 and the third connecting part 5 are used for connecting wind tunnel bodies in crossed tunneling tunnels; the connecting parts are connected through the bending parts 2. When the number of the connecting parts is three, the turning connecting piece is a three-way joint.
In a specific implementation, the corner connector is a fiberglass piece. Specifically, the process of cutting the corner connecting piece into glass fiber pieces comprises cutting glass fiber cloth into the size of the area of a cylinder body, paving the glass fiber cloth at the bottom layer on plastic paper, coating resin on the surface of the glass fiber cloth, paving the glass fiber cloth layer by layer to reach the required thickness, curing to form a flat plate, and removing the flat plate; cutting glass fiber cloth into diagonal strips, wherein the diagonal strips are preferably sized to be covered with a die of the outer connecting piece, erecting the manufactured cylinder body blank on the die of the outer connecting piece, filling the resin and the glass fiber diagonal strips layer by layer until the die of the outer connecting piece is full, and demoulding after curing.
In summary, the air duct for the underground mine roadway opening comprises the air duct, wherein one end of the air duct is connected with the air duct outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; and a turning connecting piece is arranged at the intersection of the tunneling roadway and used for connecting the wind barrel bodies in the crossed tunneling roadway. The beneficial effects are as follows: only the hard turning connecting piece is arranged at the intersection of the roadway so as to realize the communication of the air duct bodies in the plurality of roadways. The technical effects of prolonging the service life of the air duct and improving the ventilation efficiency of the air duct are achieved.
However, it will be appreciated by those skilled in the art that various modifications may be made to the duct for an underground mine roadway junction provided by the present utility model as described above without departing from the teachings of the present utility model. Accordingly, the scope of the utility model should be determined from the following claims.
Claims (6)
1. One end of the air duct is connected with a ventilator outlet, and the other end of the air duct is arranged at an operation point of a tunneling roadway; the dryer is characterized in that the dryer includes: the wind tunnel body and the turning connecting piece is used for connecting the wind tunnel bodies;
the turning connecting piece is arranged at the intersection of the tunneling roadways and is used for connecting the wind cylinder bodies in the crossed tunneling roadways.
2. A wind tunnel for an underground mine roadway crossing as claimed in claim 1, wherein the corner connector comprises a bend and at least two connectors for connecting wind tunnel bodies in intersecting tunnelling roadways; the connecting parts are connected through bending parts.
3. A wind tunnel for an underground mine roadway junction according to claim 2, wherein,
when the number of the connecting parts is two, the turning connecting piece is a two-way joint;
when the number of the connecting parts is three, the turning connecting piece is a three-way joint.
4. A wind tunnel for an underground mine roadway crossing according to claim 3 wherein the corner connector is a ferrous or fiberglass piece.
5. The air duct for an underground mine roadway crossing of claim 4, wherein a sealing collar and a tie wire are provided at the junction of the corner connector and the air duct body.
6. A wind tunnel for an underground mine roadway junction according to claim 5, wherein,
and the air duct body is provided with an anti-countercurrent device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223422899.5U CN219139106U (en) | 2022-12-16 | 2022-12-16 | Air duct for underground mine roadway crossing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223422899.5U CN219139106U (en) | 2022-12-16 | 2022-12-16 | Air duct for underground mine roadway crossing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219139106U true CN219139106U (en) | 2023-06-06 |
Family
ID=86599370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223422899.5U Active CN219139106U (en) | 2022-12-16 | 2022-12-16 | Air duct for underground mine roadway crossing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219139106U (en) |
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2022
- 2022-12-16 CN CN202223422899.5U patent/CN219139106U/en active Active
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