CN216714439U - Underground mine driving roadway ventilation system - Google Patents
Underground mine driving roadway ventilation system Download PDFInfo
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- CN216714439U CN216714439U CN202220193778.9U CN202220193778U CN216714439U CN 216714439 U CN216714439 U CN 216714439U CN 202220193778 U CN202220193778 U CN 202220193778U CN 216714439 U CN216714439 U CN 216714439U
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Abstract
The utility model discloses an underground mine tunneling roadway ventilation system, and belongs to the field of mine production. The air conditioner comprises an air feeder, an air inlet cylinder, an exhaust fan, an air outlet cylinder and an air cooler; the air feeder is connected to one end of the air inlet cylinder, the other end of the air inlet cylinder extends into a tunneling roadway, the exhaust fan is connected to one end of the air outlet cylinder, the other end of the air outlet cylinder extends out of the tunneling roadway, the exhaust fan is installed in the tunneling roadway, the air cooler is installed below the air feeder, and cold air is provided for an air inlet of the air feeder through an air outlet pipeline on the air cooler. The utility model can be suitable for long-distance tunneling roadways, reduces the temperature of the tunnel face and improves the working environment of workers.
Description
Technical Field
The utility model belongs to the field of mine production, and particularly relates to an underground mine tunneling roadway ventilation system.
Background
The underground mine adopts the production and management unit for mining mineral resources in an underground mining mode, the production process is that a ground surface excavation roadway reaches an ore body, the ore body is divided into a plurality of stages (or panels), each stage (panel) is divided into a plurality of ore blocks (strips), and the ore blocks and stages are stoped according to a certain sequence.
And after the vertical shaft is dug from the ground surface to each horizontal middle section of the underground, the roadway is required to be tunneled as soon as possible. Roadways are the main roadway projects that connect underground stopes to vertical shafts, and are responsible for the important function of transporting ores (coal) from the stopes. The common single-head roadway tunneling distance is from hundreds of meters to thousands of meters, and long-distance single-head tunneling often has the problems of poor ventilation, high temperature, difficult working conditions of workers and the like due to the fact that one end of the single-head tunneling is of a closed structure.
At present, the conventional method of some units is that a fan is arranged at the tunnel mouth of a tunneling tunnel, an air duct is arranged along the top of an arch wire of the tunneling tunnel, fresh air is continuously provided for the tunnel face at the front end of the tunneling tunnel, and the fresh air is used for discharging dirty air in the front to form press-in ventilation. Secondly, on the basis of press-in ventilation, a draw-out fan is arranged at a certain distance from the rear side of the tunnel face, an air duct is arranged, dirty air in front of the tunnel is drawn out, and press-in and draw-out mixed ventilation is formed.
The Chinese patent application numbers are: CN201711358239.6, published date: patent literature of 2018, 4 and 20 months discloses a coal roadway ventilation system, which comprises: the main transport roadway is at least 300 meters, the clear section of the roadway is 15m2, a first auxiliary transport roadway which is parallel to the first main transport roadway is arranged 10 m-20 m away from the first main transport roadway, a connecting hole is dug between the first main transport roadway and the first auxiliary transport roadway at a certain distance, and after the former connecting hole is dug through, the latter connecting hole is sealed; the first main transport lane is communicated with the first auxiliary transport lane at the broken end and is communicated with the return air lane through a return air bypass, a second main transport lane is arranged in parallel with the return air lane, and the first main transport lane further comprises a second auxiliary transport lane communicated with the second main transport lane; the second main conveying lane and the second auxiliary conveying lane are communicated with the first auxiliary conveying lane; at least one main ventilator is installed on the side wall of the first auxiliary conveying lane, the air ducts comprise two groups which are respectively arranged along two directions of the first main conveying lane, and the air duct in one direction extends to the second main conveying lane and the second auxiliary conveying lane.
The scheme mainly aims to arrange ventilation systems of two roadways at the same time, but is not suitable for long-distance tunneling roadways, and has the problem of small tunnel face air volume.
The Chinese patent application numbers are: CN201910694470.5, published date: the patent document of 30 days 10.2020 discloses an underground single-headed tunnel ventilation system, which comprises a tunnel, wherein an air blower is arranged on one side inside the tunnel, an exhaust fan is arranged on the other side inside the tunnel, and moving components are arranged at the bottom ends of the air blower and the exhaust fan.
Although this solution is provided with two fans of blowing and exhausting, it has the aforementioned problem that it is difficult to reduce the temperature at the tunnel face, and the working conditions of the workers are not completely improved.
Disclosure of Invention
1. Problems to be solved
The utility model provides an underground mine tunneling roadway ventilation system, which can be suitable for long-distance tunneling roadways, reduces the temperature of a tunnel face and improves the working environment of workers.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
An underground mine tunneling roadway ventilation system comprises a blower, an air inlet cylinder, an exhaust fan, an air outlet cylinder and an air cooler; the air feeder is connected to one end of the air inlet cylinder, the other end of the air inlet cylinder extends into a tunneling roadway, the exhaust fan is connected to one end of the air outlet cylinder, the other end of the air outlet cylinder extends out of the tunneling roadway, the exhaust fan is installed in the tunneling roadway, the air cooler is installed below the air feeder, and cold air is provided for an air inlet of the air feeder through an air outlet pipeline on the air cooler.
As a further improvement of the technical scheme, the air blowers are provided with a plurality of air blowers which are arranged at intervals along the length direction of the tunneling roadway, wherein one air blower is positioned outside the tunneling roadway; an air inlet cylinder is arranged between two adjacent air feeders, one end of the air inlet cylinder is connected with the air outlet of one air feeder, and the other end of the air inlet cylinder is close to the air inlet of the other air feeder.
As the further improvement of the technical scheme, the air feeder and the air inlet cylinder are fixedly arranged on the upper end surface of the roadway.
As the further improvement of the technical scheme, the air feeder and the air inlet cylinder are fixedly arranged on the upper end surface of the roadway through the hanging ribs.
As a further improvement of the technical scheme, an air outlet pipeline of the air cooler is of an arc-shaped structure.
As a further improvement of the technical scheme, the number of the air outlet pipelines of the air cooler is at least two.
As a further improvement of the technical proposal, a filter screen is arranged at the inlet of the air outlet cylinder.
As a further improvement of the technical scheme, an outlet of the air outlet cylinder is connected with a gas analyzer.
As a further improvement of the technical scheme, the tail end of the tunneling roadway is provided with a temperature measuring device.
3. Advantageous effects
Compared with the prior art, the utility model has the beneficial effects that:
(1) according to the ventilation system for the underground mine excavation roadway, the ventilation structure with one end used for supplying air and the other end used for exhausting air can be formed in the excavation roadway by arranging the air feeder, the air inlet cylinder, the exhaust fan, the air outlet cylinder and the air cooler, so that the ventilation effect in the excavation roadway is effectively improved, and the air cooler used for sending cold air to the air inlet of the air feeder is arranged under the air feeder, so that the temperature of air flow in the air inlet cylinder is lower, the temperature in the excavation roadway can be reduced, and the working environment of workers is improved;
(2) according to the ventilation system for the underground mine excavation roadway, the plurality of air blowers and the air inlet cylinder are arranged at intervals, so that the air supply efficiency can be ensured, the air quantity reaching the tunnel face is increased, and the other end of the air inlet cylinder is only close to the inlet of the other air blower and is not connected with the other air blower, so that cold air of an air cooler can smoothly enter the air blowers on one hand, and part of fresh air can leak from the gap between the air inlet cylinder and the air blowers on the other hand, therefore, fresh air can circulate in a plurality of positions of the excavation roadway, and the whole ventilation environment of the excavation roadway is improved;
(3) according to the ventilation system for the underground mine excavation roadway, the air outlet pipeline of the air cooler is of an arc-shaped structure, so that cold air can conveniently enter the air blower;
(4) according to the ventilation system for the underground mine excavation roadway, the filter screen is arranged at the inlet of the air outlet cylinder, so that the phenomenon that the normal work of the air outlet cylinder is influenced due to the blockage of the air outlet cylinder caused by the fact that the slag and stone dust on the tunnel face enters the air outlet cylinder can be prevented;
(5) according to the ventilation system for the underground mine excavation roadway, the gas analyzer is arranged at the outlet of the air outlet cylinder, so that the gas components from the tunnel face can be analyzed in real time, and when harmful gas exceeds the standard, workers are reminded to take corresponding measures, and the health and safety of the workers are guaranteed.
Drawings
FIG. 1 is a schematic view showing an overall structure of a ventilation system;
FIG. 2 is a schematic structural view of an air intake part;
FIG. 3 is a cross-sectional view of a ventilation system;
in the figure: 1. a blower; 2. an air inlet cylinder; 3. an exhaust fan; 4. an air outlet cylinder; 5. tunneling a roadway; 6. an air cooler; 7. hanging the ribs; 8. filtering with a screen; 9. a gas analyzer.
Detailed Description
The utility model is further described with reference to specific embodiments and the accompanying drawings.
Examples
The utility model provides an underground mine tunnelling ventilation system for in the production operation of underground mine, improve the ventilation condition and the operation environment of tunnelling tunnel inside, ensure operation personnel's health safety, its specific structure and effect are described in detail below.
As shown in fig. 1 to 3, the system mainly includes a blower 1, an air inlet drum 2, an exhaust fan 3, an air outlet drum 4 and a cold air blower 6. One end of the air inlet cylinder 2 is connected with the air feeder 1, the other end of the air inlet cylinder extends into the tunneling roadway 5, one end of the air outlet cylinder 4 is connected with the exhaust fan 3, the other end of the air outlet cylinder extends out of the tunneling roadway 5, and the exhaust fan 3 is installed in the tunneling roadway 5. The air cooler 6 is arranged below the blower 1 and supplies cold air to an air inlet of the blower 1 through an air outlet pipeline on the air cooler. In this embodiment, the air feeder 1, the air inlet barrel 2, the exhaust fan 3 and the air outlet barrel 4 are all fixedly mounted on the upper end surface of the roadway through the hanging ribs 7.
By adopting the structure, a ventilation structure with one end for supplying air and the other end for exhausting air can be formed in the excavation roadway 5, so that the ventilation effect in the excavation roadway 5 is effectively improved. And the air cooler 6 for sending cold air to the air inlet of the air feeder 1 is arranged below the air feeder 1, so that the temperature of the air flow in the air inlet barrel 2 is lower, the temperature in the tunneling roadway 5 can be reduced, and the working environment of workers is improved.
In order to increase the air quantity reaching the tunnel face, a plurality of air supply units are arranged in the embodiment, wherein one air supply unit comprises an air blower 1 and an air inlet cylinder 2, and one end of the air inlet cylinder 2 is connected with an air outlet of the air blower 1. The plurality of air supply units are arranged at intervals along the length direction of the excavation roadway 5, namely the plurality of air supply machines 1 are arranged at intervals along the length direction of the excavation roadway 5, and the other end of each air inlet cylinder 2 is close to the air inlet of the other air supply machine 1 but is not connected with the air inlet. It should be noted that, be located a forced draught blower 1 in excavation tunnel 5 outside and be located excavation tunnel 5, and except this forced draught blower 1, the below of all the other forced draught blowers 1 is equallyd divide and is provided with an air-cooler 6 respectively, and the air-out pipeline of air-cooler 6 has at least two and be the arc structure, makes things convenient for air-cooler 6 to send cold wind into in the forced draught blower 1.
Through setting up a plurality of forced draught blowers 1 and an air inlet section of thick bamboo 2 at the interval, can guarantee air supply efficiency, increase the amount of wind that reaches the face. And the other end of the air inlet barrel 2 is only close to the inlet of another blower 1 and is not connected with the other blower, so that cold air of the air cooler 6 can smoothly enter the blower 1 on the one hand, and part of fresh air can leak from the gap between the air inlet barrel 2 and the blower 1 on the other hand, therefore, fresh air flows at a plurality of positions of the excavation roadway 5, and the whole ventilation environment of the excavation roadway 5 is improved.
In addition, a filter screen 8 is arranged at the inlet of the air outlet cylinder 4, the outlet is connected with a gas analyzer 9, and a temperature measuring device is arranged on the tail end face of the excavation roadway 5. The filter screen can prevent that the sediment stone dust of face from getting into out a dryer 4 in, thereby causes the jam of play dryer 4 to influence the normal work of play dryer 4. The gas analyzer 9 can analyze the gas components from the tunnel face in real time, and remind the worker to take corresponding measures when harmful gas exceeds the standard, so that the health and safety of the operator are ensured. The temperature measuring device is convenient for workers to master the ambient temperature in the driving tunnel 5 in real time, so that the air supply temperature and the air supply quantity of the air cooler 6 can be adjusted according to the ambient temperature.
In conclusion, the underground mine excavation roadway ventilation system can be suitable for long-distance excavation roadways, reduces the temperature of the tunnel face and improves the working environment of workers.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the utility model, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the utility model.
Claims (9)
1. The utility model provides an underground mine tunnelling ventilation system, includes forced draught blower (1), air inlet section of thick bamboo (2), air exhauster (3) and play dryer (4), forced draught blower (1) is connected to one of them end of air inlet section of thick bamboo (2), and tunnelling tunnel (5) is stretched into to the other end, air exhauster (3) are connected to one of them end of play dryer (4), and tunnelling tunnel (5) is stretched out to the other end, its characterized in that is installed in tunnelling tunnel (5) in air exhauster (3): the device also comprises an air cooler (6); the air cooler (6) is arranged below the air feeder (1) and provides cold air for an air inlet of the air feeder (1) through an air outlet pipeline on the air cooler.
2. The underground mine excavation roadway ventilation system according to claim 1, characterized in that: the air blowers (1) are arranged at intervals along the length direction of the tunneling roadway (5), and one air blower (1) is positioned outside the tunneling roadway (5); an air inlet cylinder (2) is arranged between every two adjacent air blowers (1), one end of the air inlet cylinder (2) is connected with the air outlet of one air blower (1), and the other end of the air inlet cylinder is close to the air inlet of the other air blower (1).
3. The underground mine excavation roadway ventilation system according to claim 2, characterized in that: the air feeder (1) and the air inlet cylinder (2) are fixedly arranged on the upper end face of the roadway.
4. An underground mine excavation roadway ventilation system according to claim 3, characterized in that: the air feeder (1) and the air inlet cylinder (2) are fixedly arranged on the upper end face of the roadway through hanging ribs (7).
5. The underground mine excavation roadway ventilation system according to claim 1, characterized in that: and an air outlet pipeline of the air cooler (6) is of an arc-shaped structure.
6. The underground mine excavation roadway ventilation system according to claim 5, characterized in that: the air outlet pipeline of the air cooler (6) is provided with at least two air outlet pipelines.
7. An underground mine excavation roadway ventilation system according to any one of claims 1 to 6, wherein: and a filter screen (8) is arranged at the inlet of the air outlet cylinder (4).
8. An underground mine excavation roadway ventilation system according to any one of claims 1 to 6, wherein: and the outlet of the air outlet cylinder (4) is connected with a gas analyzer (9).
9. An underground mine excavation roadway ventilation system according to any one of claims 1 to 6, wherein: and the tail end of the tunneling roadway (5) is provided with a temperature measuring device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220193778.9U CN216714439U (en) | 2022-01-24 | 2022-01-24 | Underground mine driving roadway ventilation system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220193778.9U CN216714439U (en) | 2022-01-24 | 2022-01-24 | Underground mine driving roadway ventilation system |
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| CN216714439U true CN216714439U (en) | 2022-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220193778.9U Active CN216714439U (en) | 2022-01-24 | 2022-01-24 | Underground mine driving roadway ventilation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753878A (en) * | 2022-06-14 | 2022-07-15 | 山西中能华信矿业技术有限公司 | Colliery mine gas transfinites and detects ventilation unit |
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2022
- 2022-01-24 CN CN202220193778.9U patent/CN216714439U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114753878A (en) * | 2022-06-14 | 2022-07-15 | 山西中能华信矿业技术有限公司 | Colliery mine gas transfinites and detects ventilation unit |
| CN114753878B (en) * | 2022-06-14 | 2022-08-26 | 山西中能华信矿业技术有限公司 | Ventilation device for gas overrun detection of coal mine |
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