CN221002829U - Controllable circulation ventilation purification system for long-distance single-head tunneling working face - Google Patents
Controllable circulation ventilation purification system for long-distance single-head tunneling working face Download PDFInfo
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- CN221002829U CN221002829U CN202322842008.XU CN202322842008U CN221002829U CN 221002829 U CN221002829 U CN 221002829U CN 202322842008 U CN202322842008 U CN 202322842008U CN 221002829 U CN221002829 U CN 221002829U
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- 238000009423 ventilation Methods 0.000 title claims abstract description 72
- 230000005641 tunneling Effects 0.000 title claims abstract description 42
- 238000000746 purification Methods 0.000 title claims abstract description 19
- 238000005553 drilling Methods 0.000 claims abstract description 81
- 239000000428 dust Substances 0.000 claims description 34
- 238000006297 dehydration reaction Methods 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 18
- 230000018044 dehydration Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 9
- 239000010865 sewage Substances 0.000 claims description 8
- 210000001503 joint Anatomy 0.000 claims description 4
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 238000005422 blasting Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011403 purification operation Methods 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
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Abstract
The utility model discloses a controllable circulation ventilation purification system for a long-distance single-head tunneling working face, which comprises a ventilation barrel and ventilation drilling holes, wherein the ventilation barrel comprises an air inlet barrel and an air outlet barrel which are arranged along the length direction of a long-distance tunnel, the ventilation drilling holes comprise an air inlet drilling hole and an air outlet drilling hole which are arranged at a set distance from the opening of the tunnel, a middle section air inlet is formed in the air inlet barrel which is arranged close to a drilling air inlet connected with the long-distance tunnel, a middle section air outlet is formed in the air outlet barrel which is arranged close to a drilling air outlet connected with the long-distance tunnel, and the middle section air outlet is connected with the drilling air outlet through the ventilation barrel. The air inlet drilling holes and the air outlet drilling holes form an air flow exchange path between the long-distance tunnel and the ground in the deep tunnel, so that the path length of the air inlet and the air outlet is greatly shortened, the loss of the frictional resistance of ventilation along the path is reduced, the ventilation efficiency of the tunneling working face of the long-distance tunnel is improved, and the ventilation effect of the tunneling working face is ensured; meanwhile, ventilation energy consumption of the long-distance roadway driving working face is also saved.
Description
Technical Field
The utility model relates to the technical field of long-distance roadway ventilation, in particular to a long-distance single-head tunneling working face controllable circulating ventilation purification system.
Background
In the construction operation of underground single-head tunneling working face, a drilling and blasting method is generally adopted to break rock, and a large amount of dust and gun smoke are generated in the tunneling operation process. Therefore, ventilation and dust removal measures are needed to purify the working face environment, and the personal health of site construction operators is guaranteed.
At present, a local fan is generally adopted to perform pressure-pumping mixed ventilation aiming at a ventilation and dust removal mode of a long-distance single-head tunneling working face. The air supply distance of a single local fan is not more than 800m, and the maximum air supply distance is not more than 2000m through local fan relay and increasing the number of local fan stages. When the length of the single-head tunneling roadway exceeds 2000m, the fresh air flow reaching the working face is greatly reduced due to the fact that the air leakage and the resistance loss are accumulated along Cheng Fengtong along with the increase of the roadway length, and the single local fan is difficult to meet the requirements of ventilation and dust removal of the long-distance single-head tunneling working face. The dirty air flow of the single-head tunneling working face cannot be discharged and diluted in time, so that a good working environment cannot be provided for working face operators, and physical and mental health cannot be guaranteed.
Currently, aiming at the problem of ventilation and dust removal of a long-distance single-head tunneling working face, the invention patent with the patent application number 202110812228.0 discloses a return air device of a long-distance single-head tunneling tunnel and a return air method thereof. According to the technology, through the relay form of the dirty wind chamber, the progressive relay of each fan under the most efficient working condition is guaranteed to discharge dirty wind to the ground surface, the ventilation efficiency is high, and the problems of serial connection of high-power fans in the dirty wind of the long-distance wind barrel, air leakage of a ventilation interface and the like are avoided. However, when the system is applied to a long-distance single-head tunneling working face, particularly a single-head tunneling working face with the length of more than 2000m, the system has the following defects: ① The technology needs to set a plurality of dirty wind chambers and extraction fans to carry out relay, the more the relay stage number is, the lower the system reliability is, the larger the relay loss is, and the higher the ventilation energy consumption is. ② When the technology is applied to an ultra-long-distance single-head tunneling working face, the air supply capacity of a single press-in fan is insufficient. ③ The system directly discharges dust-containing gas of the tunneling working face to the tunneling roadway without dust removal treatment.
Therefore, based on the shortcomings of the prior art, there is a need in the art for further improvements and perfection of a ventilation and dust removal system for long-distance single-head tunneling working surfaces, so as to provide a good working environment for underground working surface operators.
Disclosure of utility model
In order to overcome the defects of the prior art, the utility model provides a long-distance single-head tunneling working face controllable circulating ventilation purification system which can reduce the loss of frictional resistance of along-path ventilation, improve the ventilation efficiency of deep tunnels, ensure the ventilation effect of the tunneling working face and save the energy consumption of deep tunnel ventilation.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a controllable circulation ventilation clean system of long distance single heading working face, it includes air funnel and ventilation drilling, air funnel includes the inlet tube and the outlet tube that extend along long distance tunnel length direction and set up, ventilation drilling is including the inlet air drilling and the air-out drilling that set for the distance apart from the tunnel mouth, is close to the middle section air intake has been seted up on the inlet tube that the drilling air intake that inlet air drilling and long distance tunnel are connected set up, be close to the middle section air outlet has been seted up on the outlet tube that the drilling air outlet that air-out drilling and long distance tunnel are connected set up, the middle section air outlet passes through air funnel and is connected with the drilling air outlet.
Preferably, the set distance is 1000 to 1200 meters.
Preferably, the air inlet drilling holes and the air outlet drilling holes are ventilation drilling holes which are dug from the ground or an adjacent roadway to a long-distance roadway.
Preferably, an air inlet at one end of the air inlet cylinder, which faces the roadway working surface, is closer to the roadway working surface than an air outlet at one end of the air outlet cylinder, which faces the roadway working surface.
Preferably, the air inlet cylinder comprises a shallow air inlet cylinder and a deep air inlet cylinder, the shallow air inlet cylinder and the deep air inlet cylinder are sequentially arranged along the length direction of the long-distance roadway, a disconnection section is arranged between the butt joint ends of the shallow air inlet cylinder and the deep air inlet cylinder, the disconnection section is correspondingly arranged below the drilling air inlet, and an air inlet at one end of the deep air inlet cylinder, which is close to the shallow air inlet cylinder, is a middle section air inlet.
Preferably, the air outlet barrel comprises a shallow air outlet barrel and a deep air outlet barrel, the shallow air outlet barrel and the deep air outlet barrel are sequentially arranged along the length direction of the long-distance roadway, a disconnection section is arranged between the butt joint ends of the shallow air outlet barrel and the deep air outlet barrel, the disconnection section is correspondingly arranged below the drilled air outlet, and one end air outlet of the deep air outlet barrel, which is close to the shallow air outlet barrel, is connected with the drilled air outlet through a ventilating barrel.
Preferably, one end of the middle section air inlet of the deep air inlet cylinder is provided with a purifying and dedusting device for purifying and dedusting the reflux dirty air entering the deep air inlet cylinder from the middle section air inlet.
Preferably, the purifying and dedusting device comprises a dedusting cavity and a drainage cavity, wherein the dedusting cavity is arranged above the drainage cavity, a water filtering net is arranged at the bottom of the dedusting cavity, the dedusting cavity is communicated with the drainage cavity through the water filtering net, and the drainage cavity is connected with a drainage pipeline.
Preferably, the dust removal chamber is internally provided with a spray chamber and a dehydration chamber in sequence along the air inlet direction, the spray chamber is internally provided with a spray pipe, the dehydration chamber is internally provided with a dehydration net, a filter screen is arranged between the spray chamber and the dehydration chamber, and the filter screen and the dehydration net are both perpendicular to the air inlet direction.
Preferably, the cross section size of the cavity of the dust removing cavity is larger than the pipe diameter of the deep air inlet pipe.
The beneficial effects of the utility model are as follows:
According to the utility model, the air inlet drilling holes and the air outlet drilling holes are formed in the deep tunnel far away from the tunnel mouth, so that an air flow exchange path between the long-distance tunnel and the ground is formed in the deep tunnel, and external clean air can enter the deep tunnel through the air inlet drilling holes, so that the sewage air in the deep tunnel is discharged from the air outlet drilling holes, the path lengths of the air inlet and the air outlet are greatly shortened, the along-path ventilation friction resistance loss is reduced, the ventilation efficiency of the deep tunnel is improved, and the ventilation effect of a tunneling working face is ensured; meanwhile, the energy consumption of deep roadway ventilation is also saved, and the device has a simple structure and is convenient to operate.
The utility model is provided with the open arrangement of the middle air inlet of the deep air inlet barrel, so that clean air flow entering the long-distance roadway from the air inlet drilling hole is guided to the roadway working surface along the deep air inlet barrel, fresh air flow is provided for the roadway working surface, meanwhile, the dirty air on the roadway working surface is reversely blown out, part of the dirty air is guided into the deep air inlet barrel, the other part of the dirty air flows back to the middle air inlet along the long-distance roadway, and enters the deep air inlet barrel again from the middle air inlet under the carrying of the fresh air flow, thereby increasing the recycling rate of the air flow in the long-distance roadway.
When the roadway working surface only performs rock drilling and clearing work, the motor operation frequency of the first air compressing device and the air returning device is reduced, the motor operation frequency of the second air compressing device is increased, more return air enters the deep air inlet cylinder from the middle air inlet for recycling, and the circulating utilization rate of air flow in a long-distance roadway is increased, and meanwhile ventilation energy consumption is reduced.
The utility model is provided with the purifying and dedusting device at one end of the middle air inlet, so as to purify and dedusting the reflux dirty air entering the deep air inlet barrel from the middle air inlet. Specifically, the back flow dirty air entering the deep air inlet cylinder is sequentially subjected to spray filtration dust removal and dehydration purification operation, so that the dirty air flowing back to the roadway working surface is purified by the purification dust removal device and then flows back to the roadway working surface again, the cyclic utilization rate of the air flow in the long-distance roadway is increased, and larger air supply quantity is provided for the roadway working surface.
The filter screen and the dewatering screen are of folding structures or flexible structures; when the tunnel working face is exploded, the filter screen and the dewatering screen are folded, so that the ventilation efficiency of the deep air inlet barrel is ensured; when the roadway working surface performs rock drilling and clearing work, the filter screen and the dewatering screen are unfolded, the spray pipe is opened, and the backflow sewage wind entering the deep air inlet cylinder is purified and dedusted.
Drawings
Fig. 1 is a schematic structural arrangement diagram of a long-distance single-head tunneling working face controllable circulation ventilation purification system in shallow tunnel tunneling according to an embodiment of the utility model.
Fig. 2 is a schematic structural arrangement diagram of the long-distance single-head tunneling working face controllable circulation ventilation purification system in deep tunnel tunneling according to the embodiment of the utility model.
Fig. 3 is a schematic structural diagram of a purifying and dedusting device in a long-distance single-head tunneling working face controllable circulation ventilation purifying system according to an embodiment of the utility model.
The components in the drawings are marked as follows:
1. Air inlet drilling; 2. air-out drilling; 3. a shallow air inlet cylinder; 4. a deep air inlet barrel; 11. drilling an air inlet; 41. a middle section air inlet; 5. a first air compressing device; 6. a second air compressing device; 7. a shallow air outlet cylinder; 8. a deep air outlet cylinder; 21. drilling an air outlet; 81. a middle section air outlet; 9. a return air device; 10. a purifying and dedusting device; 101. a dust removal cavity; 102. a drainage cavity; 103. a water filter screen; 104. a drainage pipe; 1011. a spray chamber; 1012. a dehydration chamber; 1013. a shower pipe; 1014. a dewatering screen; 1015. and (3) a filter screen.
Detailed Description
The preferred embodiments of the present utility model will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present utility model.
The utility model provides a controllable circulating ventilation purification system for a long-distance single-head tunneling working face, which is shown in figures 1 to 3 and comprises a ventilation tube and a ventilation drilling hole, wherein the ventilation tube comprises an air inlet tube and an air outlet tube which are arranged in an extending manner along the length direction of a long-distance tunnel, and the ventilation drilling hole comprises an air inlet drilling hole 1 and an air outlet drilling hole 2 which are arranged at a set distance from the tunnel opening; the air inlet drilling hole 1 and the air outlet drilling hole 2 are ventilation drilling holes which are downwards dug into a long-distance roadway from the ground or nearby roadway, a ventilation opening which is formed by connecting the air inlet drilling hole 1 with the long-distance roadway is a drilling air inlet 11, a ventilation opening which is formed by connecting the air outlet drilling hole 2 with the long-distance roadway is a drilling air outlet 21, a middle section air inlet 41 is formed in an air inlet barrel which is arranged close to the drilling air inlet 11, a middle section air outlet 81 is formed in an air outlet barrel which is arranged close to the drilling air outlet 21, and the middle section air outlet 81 is connected with the drilling air outlet 21 through a ventilation barrel. Preferably, the set distance is 1000-1200 m, and the air inlet at one end of the air inlet cylinder, which faces the roadway working surface, is closer to the roadway working surface than the air outlet at one end of the air inlet cylinder, which faces the roadway working surface.
In the long-distance roadway, the deep roadway is far away from the roadway opening, and the air inlet drilling holes 1 and the air outlet drilling holes 2 are formed in the deep roadway far away from the roadway opening, so that an air flow exchange path between the long-distance roadway and the ground is formed in the deep roadway, external clean air flow can enter the deep roadway through the air inlet drilling holes 1, and the polluted air in the deep roadway is discharged from the air outlet drilling holes 2, so that the path length of the air inlet and the air outlet is greatly shortened, the loss of the along-path ventilation friction resistance is reduced, the ventilation efficiency of the deep roadway is improved, and the ventilation effect of a tunneling working face is ensured; meanwhile, the energy consumption of deep roadway ventilation is also saved, and the device has a simple structure and is convenient to operate.
As shown in fig. 1 and 2, the air inlet cylinder comprises a shallow air inlet cylinder 3 and a deep air inlet cylinder 4, and the shallow air inlet cylinder 3 and the deep air inlet cylinder 4 are sequentially arranged along the length direction of the long-distance roadway. The pipe bodies of the shallow air inlet cylinder 3 and the deep air inlet cylinder 4 are sequentially pushed and paved along the tunneling depth of the roadway working surface; preferably, the shallow air inlet pipe is arranged in a shallow roadway close to the roadway junction, namely, in a long-distance roadway within 1 km from the roadway junction; the deep air inlet pipe is arranged in a deep roadway far away from the roadway opening, namely, in a long-distance roadway which is 1 km away from the roadway opening; after the roadway working surface is pushed to the depth of 1 km, the air inlet drilling hole 1 and the air outlet drilling hole 2 are excavated, and then the deep air inlet cylinder 4 is paved.
The air inlet drill hole 1 is arranged between the shallow air inlet cylinder 3 and the deep air inlet cylinder 4, the drill hole air inlet 11 connected with the long-distance roadway is arranged at the cut-off section, and an air inlet at one end of the deep air inlet cylinder 4 close to the drill hole air inlet 11 is a middle air inlet 41. The air inlet drill hole 1 and the deep air inlet barrel 4 form a deep tunnel air inlet channel, and a compressed air device is arranged in the deep tunnel air inlet channel and used for actively guiding external air flow into the deep tunnel air inlet channel. As shown in fig. 2, the air inlet end of the air inlet drill hole 1 arranged on the ground is provided with a first air compressing device 5 for compressing the ground air flow into the air inlet drill hole 1, and one end of the middle air inlet 41 is provided with a second air compressing device 6 for guiding the clean air flow guided from the air inlet drill hole 1 into the long-distance roadway into the deep air inlet barrel 4. Clean air flow entering the long-distance roadway from the air inlet drill hole 1 is guided to the roadway working surface along the deep air inlet cylinder 4, and fresh air flow is provided for the roadway working surface; after the air inlet drilling hole 1 and the air outlet drilling hole 2 are excavated, ventilation air flow of the deep roadway is mainly realized by the air inlet drilling hole 1 and the air outlet drilling hole 2, so that resources are saved, the utilization rate of the ventilation device is improved, and after the air inlet drilling hole 1 and the air outlet drilling hole 2 are excavated, the shallow air inlet cylinder 3 can be dismantled and used for paving the deep air inlet cylinder 4.
As shown in fig. 1 and 2, the air outlet duct comprises a shallow air outlet duct 7 and a deep air outlet duct 8, and the shallow air outlet duct 7 and the deep air outlet duct 8 are sequentially arranged along the length direction of the long-distance roadway. The pipe bodies of the shallow air outlet pipe 7 and the deep air outlet pipe 8 are sequentially pushed and paved along the tunneling depth of the roadway working surface; preferably, the shallow air outlet pipe is arranged in a shallow tunnel close to the tunnel junction, namely in a long-distance tunnel within 1 km from the tunnel junction; the deep air outlet pipe is arranged in a deep roadway far away from the roadway junction, namely in a long-distance roadway which is 1 km away from the roadway junction.
The air outlet drilling hole 2 is arranged between the shallow air outlet barrel 7 and the deep air outlet barrel 8, the drilling air outlet 21 connected with the long-distance roadway is arranged on the cut-off section, one end air port of the deep air outlet barrel 8, which is close to the drilling air outlet 21, is a middle section air outlet 81, and the middle section air outlet 81 is connected with the drilling air outlet 21 through the ventilating barrel. As shown in fig. 2, the air-return device 9 is disposed on the air funnel between the middle section air outlet 81 and the drill hole air outlet 21, and is used for actively guiding the dirty air on the working surface of the tunnel to the ground, and discharging the dirty air in the long-distance tunnel.
When the tunnel working face is exploded, a large amount of blasting smoke is generated, a large amount of toxic waste gas is entrained in the blasting smoke, ventilation and ventilation are needed to be carried out on the deep tunnel at the moment, namely, the first air compressing device 5, the second air compressing device 6 and the air returning device 9 are controlled to be started, clean air flow on the ground is pressed into the air inlet drilling hole 1 by the first air compressing device 5 to enter the deep tunnel, then is guided into the deep air inlet barrel 4 by the second air compressing device 6, is guided to the tunnel working face along the deep air inlet barrel 4, provides fresh air flow for the tunnel working face, and the air returning device 9 sucks the sewage into the deep air outlet barrel 8 and discharges the sewage from the air outlet drilling hole 2.
When the tunneling working face only performs rock drilling and clearing work, main pollutants in the air of the tunneling working face are dust. In order to increase the recycling rate of the air flow in the long-distance tunnel, as shown in fig. 2, the middle air inlet 41 of the deep air inlet barrel 4 is opened, so that clean air flow entering the long-distance tunnel from the air inlet drill hole 1 is guided to the tunnel working surface along the deep air inlet barrel 4, fresh air flow is provided for the tunnel working surface, meanwhile, the dirty air on the tunnel working surface is reversely blown out, part of the dirty air is guided into the deep air inlet barrel 4 by the second air pressing device 6, and the other part of the dirty air flows back to the middle air inlet 41 along the long-distance tunnel and enters the deep air inlet barrel 4 again from the middle air inlet 41 under the carrying of the fresh air flow. Preferably, when the roadway working surface only performs rock drilling and clearing work, the motor operation frequency of the first air compressing device 5 and the air returning device 9 is reduced, the motor operation frequency of the second air compressing device 6 is increased, so that more return air enters the deep air inlet cylinder 4 from the middle air inlet 41 for recycling, and the recycling rate of air flow in a long-distance roadway is increased, and meanwhile, the ventilation energy consumption is reduced.
However, since it is necessary to clean and remove dust from the sewage re-entering the deep air intake duct 4, a cleaning and dust removing device 10 is provided at one end of the middle air intake 41, for cleaning and dust removing the returned sewage from the middle air intake 41 entering the deep air intake duct 4. As shown in fig. 2 and fig. 3, the purifying and dust removing device 10 is disposed at the output end of the second air compressing device 6, and includes a dust removing cavity 101 and a drainage cavity 102, the dust removing cavity 101 is disposed above the drainage cavity 102, a water filtering net 103 is disposed at the bottom of the dust removing cavity 101, the dust removing cavity 101 is communicated with the drainage cavity 102 through the water filtering net 103, and the drainage cavity 102 is connected with a drainage pipeline 104. The cross-sectional size of the cavity of the dust removing cavity 101 is larger than the pipe diameter of the deep air inlet cylinder 4, a spray chamber 1011 and a dewatering chamber 1012 are sequentially arranged in the cavity along the air inlet direction, a spray pipe 1013 is arranged in the spray chamber 1011, a dewatering net 1014 is arranged in the dewatering chamber 1012, a filter screen 1015 is arranged between the spray chamber 1011 and the dewatering chamber 1012, and the filter screen 1015 and the dewatering net 1014 are both perpendicular to the air inlet direction. Preferably, the shower pipe 1013 is preferably disposed at the top of the spray chamber 1011, for removing dust from the air flow passing through, the sprayed water leaks into the drainage cavity 102 from the water filtering net 103 at the bottom of the spray chamber 1011, then the air flow carrying dust and water vapor is filtered and removed by the filter screen 1015 and enters the dehydration chamber 1012, the water vapor in the air flow is trapped by the dehydration net 1014 in the dehydration chamber 1012, the trapped water falls to the bottom of the dehydration cavity along the dehydration net 1014, and the water filtering net 103 at the bottom of the sub-dehydration chamber 1012 leaks into the drainage cavity 102, and the water in the drainage cavity 102 is discharged from the drainage pipe. The polluted air flowing back from the tunnel working surface is purified by the purifying and dedusting device 10 and then flows back to the tunnel working surface again, so that the recycling rate of the air flow in the long-distance tunnel is increased, and the larger air supply quantity is provided for the tunnel working surface.
Preferably, the filter 1015 and the dewatering screen 1014 are both folded or flexible; when the tunnel working surface is exploded, the filter screen 1015 and the dewatering screen 1014 are folded up, so that the ventilation efficiency of the deep air inlet cylinder 4 is ensured; when the roadway working surface performs rock drilling and cleaning, the filter screen 1015 and the dewatering screen 1014 are unfolded, and the spray pipe 1013 is opened to purify and remove dust of the return sewage entering the deep air inlet cylinder 4.
The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structures or equivalent flow modifications which may be made by the teachings of the present utility model and the accompanying drawings or which may be directly or indirectly employed in other related art are within the scope of the utility model.
Claims (10)
1. The utility model provides a controllable circulation ventilation clean system of long distance single heading working face, its characterized in that, including air funnel and ventilation drilling, air funnel includes the inlet tube and the outlet tube that extend along long distance tunnel length direction and set up, ventilation drilling is including the inlet air drilling and the air-out drilling that set for apart from the lane mouth, is close to the middle section air intake has been seted up on the inlet tube that the drilling air intake that inlet air drilling and long distance tunnel are connected set up, be close to the middle section air outlet has been seted up on the outlet tube that the drilling air outlet that air outlet drilling and long distance tunnel are connected set up, the middle section air outlet passes through air funnel and is connected with the drilling air outlet.
2. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 1, wherein the set distance is 1000-1200 meters.
3. The system of claim 1, wherein the air inlet and outlet holes are ventilation holes drilled from the ground or an adjacent roadway into the long-distance roadway.
4. The long-distance single-head tunneling working surface controllable circulating ventilation purification system according to claim 1, wherein an air inlet at one end of the air inlet cylinder, which faces the roadway working surface, is closer to the roadway working surface than an air outlet at one end of the air inlet cylinder, which faces the roadway working surface.
5. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 1, wherein the air inlet cylinder comprises a shallow air inlet cylinder and a deep air inlet cylinder, the shallow air inlet cylinder and the deep air inlet cylinder are sequentially arranged along the length direction of the long-distance roadway, a disconnection section is arranged between butt joint ends of the shallow air inlet cylinder and the deep air inlet cylinder, the disconnection section is correspondingly arranged below a drilling air inlet, and an air inlet at one end of the deep air inlet cylinder, which is close to the shallow air inlet cylinder, is a middle section air inlet.
6. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 1, wherein the air outlet barrel comprises a shallow air outlet barrel and a deep air outlet barrel, the shallow air outlet barrel and the deep air outlet barrel are sequentially arranged along the length direction of the long-distance roadway, a disconnection section is arranged between butt joint ends of the shallow air outlet barrel and the deep air outlet barrel, the disconnection section is correspondingly arranged below a drilling air outlet, and an air outlet at one end of the deep air outlet barrel, which is close to the shallow air outlet barrel, is connected with the drilling air outlet through the air barrel.
7. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 5, wherein one end of a middle section air inlet of the deep air inlet cylinder is provided with a purification and dust removal device for purifying and removing the return sewage air entering the deep air inlet cylinder from the middle section air inlet.
8. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 7, wherein the purification and dust removal device comprises a dust removal cavity and a drainage cavity, the dust removal cavity is arranged above the drainage cavity, a water filtering net is arranged at the bottom of the dust removal cavity, the dust removal cavity is communicated with the drainage cavity through the water filtering net, and the drainage cavity is connected with a drainage pipeline.
9. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 8, wherein a spray chamber and a dehydration chamber are sequentially arranged in the dust removal cavity along the air inlet direction, a spray pipe is arranged in the spray chamber, a dehydration net is arranged in the dehydration chamber, a filter screen is arranged between the spray chamber and the dehydration chamber, and the filter screen and the dehydration net are both perpendicular to the air inlet direction.
10. The long-distance single-head tunneling working face controllable circulating ventilation purification system according to claim 8, wherein the cross-sectional size of the cavity of the dust removing cavity is larger than the pipe diameter of the deep air inlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322842008.XU CN221002829U (en) | 2023-10-23 | 2023-10-23 | Controllable circulation ventilation purification system for long-distance single-head tunneling working face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322842008.XU CN221002829U (en) | 2023-10-23 | 2023-10-23 | Controllable circulation ventilation purification system for long-distance single-head tunneling working face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221002829U true CN221002829U (en) | 2024-05-24 |
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ID=91122612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322842008.XU Active CN221002829U (en) | 2023-10-23 | 2023-10-23 | Controllable circulation ventilation purification system for long-distance single-head tunneling working face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221002829U (en) |
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2023
- 2023-10-23 CN CN202322842008.XU patent/CN221002829U/en active Active
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