CN206785422U - The aeration structure of ventilated drill field in a kind of tunnel - Google Patents
The aeration structure of ventilated drill field in a kind of tunnel Download PDFInfo
- Publication number
- CN206785422U CN206785422U CN201720618990.4U CN201720618990U CN206785422U CN 206785422 U CN206785422 U CN 206785422U CN 201720618990 U CN201720618990 U CN 201720618990U CN 206785422 U CN206785422 U CN 206785422U
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- China
- Prior art keywords
- gas drainage
- under suction
- ventilated
- tunnel
- drainage under
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Abstract
The utility model discloses a kind of aeration structure of ventilated drill field in tunnel, and structure design is simple, rationally using the principles of science, suits measures to local conditions, easy construction, and ventilation effect is good；The technical scheme used for：The aeration structure of ventilated drill field in a kind of tunnel, including along excavate coal seam take the shape of the letter U arrangement track crossheading intake and adhesive tape crossheading return aircourse, it is be arranged in parallel with adhesive tape crossheading return aircourse and is equipped with the special tunnel of gas drainage under suction of ventilation blower, coal column is reserved between the special tunnel of the gas drainage under suction and adhesive tape crossheading return aircourse, interval is provided with the gas drainage under suction through hole perpendicular to the special tunnel of gas drainage under suction on the coal column, it is equipped with the special tunnel of gas drainage under suction and is connected with gas drainage under suction through hole, and it is respectively used to the gas drainage pipe of gas in goaf and ventilated drill field；The top in ventilated drill field is provided with linked network, and the height of the linked network inner end is higher than the height of outer end, and the space on the linked network top is filler.
Description
Technical field
The aeration structure of ventilated drill field, belongs to control of coalmine gas technical field in a kind of tunnel of the utility model.
Background technology
In the roadway construction in colliery, lane side construct drill site after, due in extraction drill site ventilation condition by field condition
Restrict, often result in methane accumulation in extraction drill site, gas density increases the safety for being unfavorable for personnel, in order to solve extraction drill site
Interior gas accumulation problems, it is necessary to be improved to existing draft type.
At present, in the exploitation of high methane spontaneous thick seam, the aeration structure of working face has many kinds, such as " two enter one go back to "
That is " U+L " type ventilating system, the i.e. main air intake of track crossheading, belt crossheading auxiliary air inlet, tail lane return air and positioned at auxiliary air inlet
Gas-removing between lane and return airway traverses to be traversed with return air；Booster is installed in belt crossheading just before to supply tail lane
Wind, dilute in tail lane (return air is traversed with inner) gas density to safe range, in addition, in order to reduce return air upper corner to gas-removing
A section gas, oxygen concentration are traversed, return air upper corner to the gas-removing of gob side entry retaining traverses mouth and sets up divider wall in goaf side.
There is the uncontrollable space of gas in the draft type, be great potential safety hazard；Longer working face is being moved towards, is traversing construction quantity
More, the setting of divider wall causes to traverse that temporary airtight is more, and ventilating system is unreliable, and traverses interior watt after traversing temporary airtight
Long-term accumulation is inevitable for this, can not monitor, and traverses that permanent airtight execution quantity is more, quantities is big after working face extraction,
The permanent closed haul of construction is difficult in return airway, and high methane region construction operation potential safety hazard is more, after permanent airtight execution
Cracking leakage gas after long-term compression, final-period management difficulty is big, is posed a big pressure for mine ventilation system management.
Utility model content
The utility model overcomes the shortcomings of the prior art, there is provided the ventilation knot of ventilated drill field in a kind of tunnel
Structure, structure design is simple, rationally using the principles of science, suits measures to local conditions, easy construction, and ventilation effect is good.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model is：Ventilated drill field in a kind of tunnel
Aeration structure, including along excavate coal seam take the shape of the letter U arrangement track crossheading intake and adhesive tape crossheading return aircourse, it is suitable with adhesive tape
Groove return aircourse be arranged in parallel and is equipped with the special tunnel of gas drainage under suction of ventilation blower, the special tunnel of the gas drainage under suction and adhesive tape
Coal column is reserved between crossheading return aircourse, interval is provided with the gas drainage under suction perpendicular to the special tunnel of gas drainage under suction on the coal column
Through hole, it is equipped with the special tunnel of gas drainage under suction and goaf and ventilation is connected and be respectively used to gas drainage under suction through hole
The gas drainage pipe of gas in drill site；
The top in ventilated drill field is provided with linked network, and the height of the linked network inner end is higher than the height of outer end, described
The space on linked network top is filler.
Pitch of holes between the adjacent gas drainage under suction through hole is 1~2m, and the aperture of the gas drainage under suction through hole is 100
~150mm.
The gas drainage pipe is polyethylene conduit.
The utility model has an advantageous effect in that compared with prior art：The utility model utterly destroy traverse it is interim close
With permanent closed preceding methane accumulation in closing, it is easy to ventilating system management, avoids upper corner to gas-removing and traverse a section gas density
Uncontrollable phenomenon occurs, and reduces goaf gas accident and occurs, and elimination return airway gas-removing, which is traversed to return air, traverses high methane
Section, the Probability for eliminating gas accident in tunnel is reduced, improve goaf gas utilization rate, improve effective air quantity profit
With reduction ventilating system management difficulty.The utility model structure design is simple, rationally using the principles of science, suits measures to local conditions, construction
Simplicity, ventilation effect are good.
Brief description of the drawings
The utility model is described further below in conjunction with the accompanying drawings.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of ventilated drill field in the utility model.
In figure：1 be excavate coal seam, 2 be track crossheading intake, 3 be adhesive tape crossheading return aircourse, 4 be gas drainage under suction
Special tunnel, 5 be coal column, 6 be gas drainage under suction through hole, 7 be gas drainage pipe, 8 be goaf, 9 be ventilated drill field, 10 be extension
Net, 11 are filler.
Embodiment
As shown in Figure 1 and Figure 2, in a kind of tunnel of the utility model ventilated drill field aeration structure, including along excavate coal seam 1
The track crossheading intake 2 for the arrangement that takes the shape of the letter U and adhesive tape crossheading return aircourse 3, be arranged in parallel with adhesive tape crossheading return aircourse 3 and
The special tunnel 4 of gas drainage under suction of ventilation blower is equipped with, between the special tunnel 4 of the gas drainage under suction and adhesive tape crossheading return aircourse 3
Coal column 5 is reserved with, is spaced on the coal column 5 and is provided with the gas drainage under suction through hole 6 perpendicular to the special tunnel 4 of gas drainage under suction, described watt
It is equipped with the special tunnel 4 of this extraction and goaf 8 and the Neva of ventilated drill field 9 is connected and be respectively used to gas drainage under suction through hole 6
This gas drainage pipe 7；
The top in ventilated drill field 9 is provided with linked network 10, and the height of the inner end of linked network 10 is higher than the height of outer end,
The space on the top of linked network 10 is filler 11.
Pitch of holes between the adjacent gas drainage under suction through hole 6 is 1~2m, and the aperture of the gas drainage under suction through hole 6 is
100~150mm.
The gas drainage pipe 7 is polyethylene conduit.
The utility model carries out linked network in ventilated drill field 9 using steel band and wire netting, inboard by ventilated drill field 9, is less than
Linked network at 1.0~1.5m of back, so that low outer high form in the formation of the top of ventilated drill field 9.Then to center section
Enriched using chemical charge.
The utility model gas drainage pipe 7 can use three times DN300mm polyethylene conduits, while can also be returned in adhesive tape crossheading
A DN200mm polyethylene conduit is arranged in air way road 3, for this coal bed drilling of extraction.
Embodiment of the present utility model is explained in detail above in conjunction with accompanying drawing, but the utility model is not limited to
Embodiment is stated, in those of ordinary skill in the art's possessed knowledge, the utility model aims can also not departed from
On the premise of various changes can be made.
Claims (3)
- A kind of 1. aeration structure of ventilated drill field in tunnel, it is characterised in that：Coal seam is excavated including edge（1）The rail for the arrangement that takes the shape of the letter U Road crossheading intake（2）With adhesive tape crossheading return aircourse（3）, with adhesive tape crossheading return aircourse（3）It is arranged in parallel and is equipped with The special tunnel of gas drainage under suction of ventilation blower（4）, the special tunnel of gas drainage under suction（4）With adhesive tape crossheading return aircourse（3）Between It is reserved with coal column（5）, the coal column（5）Upper interval is provided with perpendicular to the special tunnel of gas drainage under suction（4）Gas drainage under suction through hole （6）, the special tunnel of gas drainage under suction（4）Inside it is equipped with and gas drainage under suction through hole（6）Connect and be respectively used to goaf （8）And ventilated drill field（9）The gas drainage pipe of interior gas（7）；In the ventilated drill field（9）Interior top is provided with linked network（10）, The linked network（10）The height of inner end is higher than the height of outer end, the linked network（10）The space on top is filler（11）.
- 2. the aeration structure of ventilated drill field in a kind of tunnel according to claim 1, it is characterised in that：The adjacent gas Extraction through hole（6）Between pitch of holes be 1~2m, and the gas drainage under suction through hole（6）Aperture be 100~150mm.
- 3. the aeration structure of ventilated drill field in a kind of tunnel according to claim 1, it is characterised in that：The gas drainage under suction Pipe（7）For polyethylene conduit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720618990.4U CN206785422U (en) | 2017-05-31 | 2017-05-31 | The aeration structure of ventilated drill field in a kind of tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720618990.4U CN206785422U (en) | 2017-05-31 | 2017-05-31 | The aeration structure of ventilated drill field in a kind of tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785422U true CN206785422U (en) | 2017-12-22 |
Family
ID=60713571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720618990.4U Expired - Fee Related CN206785422U (en) | 2017-05-31 | 2017-05-31 | The aeration structure of ventilated drill field in a kind of tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785422U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027921A (en) * | 2023-09-28 | 2023-11-10 | 太原理工大学 | Method for preventing influence of high-gas goaf on nearby working surface |
-
2017
- 2017-05-31 CN CN201720618990.4U patent/CN206785422U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117027921A (en) * | 2023-09-28 | 2023-11-10 | 太原理工大学 | Method for preventing influence of high-gas goaf on nearby working surface |
| CN117027921B (en) * | 2023-09-28 | 2023-12-12 | 太原理工大学 | Method for preventing influence of high-gas goaf on nearby working surface |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20180531 |