CN205189929U - A ventilation unit that is used for high gas long distance to combine digging tunnel - Google Patents
A ventilation unit that is used for high gas long distance to combine digging tunnel Download PDFInfo
- Publication number
- CN205189929U CN205189929U CN201520925006.XU CN201520925006U CN205189929U CN 205189929 U CN205189929 U CN 205189929U CN 201520925006 U CN201520925006 U CN 201520925006U CN 205189929 U CN205189929 U CN 205189929U
- Authority
- CN
- China
- Prior art keywords
- branch vent
- tunnel
- ventilation unit
- admirable
- long distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 19
- 239000004744 fabric Substances 0.000 claims abstract description 5
- 238000005538 encapsulation Methods 0.000 claims abstract description 4
- 230000007704 transition Effects 0.000 claims abstract description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 26
- 238000009434 installation Methods 0.000 claims description 7
- 238000009825 accumulation Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 230000011218 segmentation Effects 0.000 abstract 1
- 230000035508 accumulation Effects 0.000 description 4
- 239000003245 coal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 230000005641 tunneling Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Ventilation (AREA)
Abstract
The utility model relates to a ventilation unit that is used for high gas long distance to combine digging tunnel. It is on original dryer basis, and every interval fixed distance adds the branch vent of certain length, the branch vent is connected through making up with the dryer, the transition of junction loudspeaker form, this branch vent comprises dryer cloth and encapsulation heliciform bracing ring wherein, be equipped with a plurality of couples on the branch vent. Compare with the traditional ventilator mode, this ventilation unit can realize fresh distinguished and admirable segmentation and carry that the air current is mobile in the reinforcing tunnel, guarantees to combine and digs each district's section of tunnel to fresh distinguished and admirable demand, avoids that the return air circuit is long, gas accumulation problem in the poor return air that arouses of air current mobility, through adjusting the branch vent position, can provide fresh distinguished and admirable for calm zone territories such as tunnel upper corner, small -size chambers, avoid above -mentioned regional gas to transfinite, stop the potential safety hazard. This ventilation unit simple manufacture, low cost, not fragile have very big popularization application prospect.
Description
Technical field
The utility model relates to a kind of ventilation installation for high methane long distance full-mechanized roadway, belongs to the local ventilation in mine.
Background technology
At present, adopt forced ventilation in coal mine roadway tunneling process more, it utilizes high pressure portable blower (or blower fan) as power, by air duct by fresh air conveying to boring head place, for driving face provides enough fresh airs, and then dilution, eliminating pernicious gas and reduction dust concentration, dirty airflow is flowed out by tunnel, thus reach and improve working conditions, ensure the object that operating personnel is healthy.But in high methane long distance full-mechanized roadway, excavation operation is carried out owing to adopting heavy mechanical equipment, strong disturbance is produced to coal and rock interior in a big way around tunnel, the mine pressure degree caused is high and the duration is long, tax was stored in a large amount of free gas short time around tunnel in coal and rock gushes out, very easily cause and meet head on to locate gas exceeding limit, and after development end pushes through rear considerable time, in coal body, gas is still continuous gushes out in tunnel; Meanwhile, the a great deal of full-mechanized roadway length of Present Domestic reaches 1 ~ 2.5km, along with development end advances, increase with boring head distance, return air circuit is elongated, and in tunnel, air flow property weakens, and ventilation effect is deteriorated gradually, cause gas density in return to build up increase, working environment worsens; In addition, in well lane engineering, inevitably the small-sized chamber of digging is used for storage equipment or material, because chamber inner air flow is poor, very easily forms calm wind area, causes gas to gather in this region; The heavy mechanical equipment such as development machine, equipment train causes distinguished and admirable disorder, also easily causes the position methane accumulations such as tunnel upper corner.Tradition forced ventilation and relevant gas drainage technique can solve high methane full-mechanized roadway boring head region gas exceeding limit problem preferably, but effectively cannot solve the methane accumulation problem away from the calm wind area such as place and small-sized chamber, upper corner of meeting head on.
Utility model content
In order to overcome, the return air circuit adopting traditional forced ventilation to exist in high methane long distance full-mechanized roadway tunneling process is long, circulation is poor and the methane accumulation problem of calm wind area, the utility model proposes a kind of Novel ventilation device, this ventilation installation can realize fresh distinguished and admirable conveying stage by stage, strengthen air flow property, ensure that tunnel regional is to fresh distinguished and admirable demand, and can be that the calm wind area conveyings such as small-sized chamber, upper corner are fresh distinguished and admirable, improve tunnel working environment.
The utility model solves the technical scheme that its technical problem adopts: on the basis of original air duct, along tunnelling direction, set up the branch vent of certain length at interval of fixed range, branch vent and air duct are by making connection, and junction is trumpet-like transition; Branch vent is made up of air duct fabric and encapsulation helical form bracing ring wherein, and have scalability, branch vent is provided with some hooks.During use, branch vent is launched and is fixed to by hook to need near aerated area on rib; When not using, branch vent is packed up, and enclosed ventilation outlet.
The beneficial effects of the utility model are: compared with traditional forced ventilation, and original air duct basis increases telescopic branch vent, realize each section of full-mechanized roadway to fresh distinguished and admirable demand, avoid the gas exceeding limit problem in return; By regulating branch vent position, can be the calm wind area such as tunnel upper corner, small-sized chamber and providing fresh distinguished and admirable, avoiding above-mentioned zone methane accumulation.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is branch vent lateral view.
Fig. 3 is I-I sectional view of Fig. 1.
1. full-mechanized roadway in figure, meet head in pick face of 2. combining, 3. blower fan (or high pressure portable blower), 4. air duct, 5. branch vent, 6. fresh distinguished and admirable, 7. dirty distinguished and admirable, 8. horn mouth, 9. air duct fabric, 10. helical form bracing ring, 11. hooks, a. branch vent spacing, d. branch vent interior diameter.
Detailed description of the invention
Further describe the utility model patent below in conjunction with embodiment in accompanying drawing, its concrete implementation step is as follows:
Step one, according to the length of full-mechanized roadway, crew numbers and tunnel wind speed requirement, calculates the model determining blower fan (or portable blower) 3 and air duct 4.
Step 2, according to adit digging position in tunnel length and tunnel, determines the spacing a that branch vent 5 moves towards along tunnel, according to actual conditions, preferentially choose 300,500,800m.
Step 3, according to the strike separation a determined, be connected by branch vent 5 with air duct 4 by making, junction is designed to horn-like 8.Wherein, branch vent 5 is made up of air duct fabric 9 and encapsulation helical form bracing ring 10 wherein, and branch vent 5 diameter d is 100 ~ 300mm, extensible length 3000 ~ 6000mm.
Step 4, in tunnelling process, installs blower fan, air duct successively, guarantees that boring head place is to fresh distinguished and admirable demand; When branch vent need be used, branch vent 5 is launched, and utilize the hook 11 on branch vent 5 that branch vent 5 is fixed to the calm wind area such as upper corner, small-sized chamber.
A kind of ventilation installation for high methane long distance full-mechanized roadway described in the utility model, makes simple, with low cost, not fragile, effectively can solve the gas exceeding limit problem of return air circuit length and calm wind area in full-mechanized roadway.
It should be noted that; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned example; the change that those of ordinary skill in the art makes in essential scope of the present utility model, remodeling, interpolation or replacement, all should be covered by within protection domain of the present utility model.
Claims (3)
1. the ventilation installation for high methane long distance full-mechanized roadway, it is characterized in that: the branch vent (5) increasing certain length on the basis of air duct (1), branch vent (5) is connected by making with air duct (1), and junction is trumpet-like transition (8).
2. a kind of ventilation installation for high methane long distance full-mechanized roadway according to claim 1, is characterized in that: branch vent (5) is made up of air duct fabric (9) and encapsulation helical form bracing ring (10) wherein.
3. a kind of ventilation installation for high methane long distance full-mechanized roadway according to claim 1, is characterized in that: the helical form bracing ring (10) of branch vent (5) is provided with hook (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925006.XU CN205189929U (en) | 2015-11-19 | 2015-11-19 | A ventilation unit that is used for high gas long distance to combine digging tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520925006.XU CN205189929U (en) | 2015-11-19 | 2015-11-19 | A ventilation unit that is used for high gas long distance to combine digging tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205189929U true CN205189929U (en) | 2016-04-27 |
Family
ID=55782929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520925006.XU Expired - Fee Related CN205189929U (en) | 2015-11-19 | 2015-11-19 | A ventilation unit that is used for high gas long distance to combine digging tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205189929U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869984A (en) * | 2017-03-02 | 2017-06-20 | 中国矿业大学 | A kind of long distance driving tunnel portable blower series ventilation automatically adjusts protection device |
| CN110439604A (en) * | 2019-08-16 | 2019-11-12 | 中铁隧道局集团有限公司 | Super-long tunnel construction long range method of ventilation |
| CN111894657A (en) * | 2020-07-16 | 2020-11-06 | 山东华坤地质工程有限公司 | Gas treatment method |
-
2015
- 2015-11-19 CN CN201520925006.XU patent/CN205189929U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106869984A (en) * | 2017-03-02 | 2017-06-20 | 中国矿业大学 | A kind of long distance driving tunnel portable blower series ventilation automatically adjusts protection device |
| CN106869984B (en) * | 2017-03-02 | 2019-08-27 | 中国矿业大学 | A kind of long distance driving tunnel portable blower series ventilation automatic adjustment protective device |
| CN110439604A (en) * | 2019-08-16 | 2019-11-12 | 中铁隧道局集团有限公司 | Super-long tunnel construction long range method of ventilation |
| CN110439604B (en) * | 2019-08-16 | 2021-03-19 | 中铁隧道局集团有限公司 | Long-distance ventilation method for construction of extra-long tunnel |
| CN111894657A (en) * | 2020-07-16 | 2020-11-06 | 山东华坤地质工程有限公司 | Gas treatment method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205189929U (en) | A ventilation unit that is used for high gas long distance to combine digging tunnel | |
| CN201723246U (en) | Ventilating structure for pumping and exhausting gas at coal face | |
| CN109268054B (en) | Ventilation and dust removal system for underground large-section and long-distance tunneling surface | |
| CN103775083B (en) | One and fully-mechanized digging machine synchronizing moving dedusting air cleaning system | |
| CN106979031A (en) | The gas drainage system and tunnel structure in a kind of tunnel | |
| CN103742187B (en) | Excavation face in coal mine short distance combined dust-eliminating method | |
| CN205243548U (en) | High gas tunnel ventilation by ducts construction structures | |
| CN110905581B (en) | Movable type excavation roadway cooling equipment | |
| CN206668313U (en) | The gas drainage system and tunnel structure in a kind of tunnel | |
| CN205858397U (en) | Inclined shaft and positive hole ventilating system in constructing tunnel | |
| CN201103402Y (en) | Mine down-hole tunnel ventilating device | |
| CN102207004A (en) | Method for carrying out gas control on coal faces | |
| CN103912300A (en) | Wall-attached air duct | |
| CN203856495U (en) | Tunnel spraying dust keeper | |
| CN106382128B (en) | A kind of coal road double-layer ventilation apparatus and method preventing gas exceeding limit | |
| CN103557026B (en) | A kind of method solving gas at upper corner based on push pipe mole | |
| CN105179002A (en) | Construction method for dynamic ventilation channels of underground mining of thick ore body | |
| CN202810888U (en) | Mine ventilation air methane collecting device | |
| CN208702445U (en) | A kind of Tunnel Ventilation System | |
| CN103485782A (en) | Dedusting method of fully-mechanized excavating construction for underground coal mine | |
| CN207485459U (en) | It is a kind of can rapid build local air return system | |
| RU2310079C1 (en) | Device for air flow distribution in mine ventilation systems | |
| CN207032335U (en) | A kind of pressure-air blast, which fetches earth, draws core error-correction structure | |
| CN203239378U (en) | Novel mining wall attachment air duct | |
| CN210686039U (en) | Mining belt air door-passing air leakage preventing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160427 Termination date: 20161119 |