CN201045302Y - Main fan blower automatic transition air door - Google Patents
Main fan blower automatic transition air door Download PDFInfo
- Publication number
- CN201045302Y CN201045302Y CNU2007200236819U CN200720023681U CN201045302Y CN 201045302 Y CN201045302 Y CN 201045302Y CN U2007200236819 U CNU2007200236819 U CN U2007200236819U CN 200720023681 U CN200720023681 U CN 200720023681U CN 201045302 Y CN201045302 Y CN 201045302Y
- Authority
- CN
- China
- Prior art keywords
- air door
- fan
- air
- blocking device
- door
- 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
Images
Landscapes
- Ventilation (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an automatic switching air door for main fan blowers in mines, which comprises an air door (I), a fan (I), an air door (II) and a fan (II), wherein the air door (I) and the fan (I) are arranged inside the air channel of the fan, and the air door (II) and the fan (II) are arranged in the air channel of a backup fan. The utility model also comprises a locking device (I) and a locking device (II) which can respectively lock the locked state and the open state of the air door (I), and a locking device (III) and a locking device (IV) which can respectively lock the locked state and the open state of the air door (II), an armored rope getting through a guide fixed pulley is connected with the air door (I) and the air door (II). When one of the air door (I) and the air door (II) is opened up, the open air door drives another air door to close via the armored rope. The automatic air door is simple in structure and convenient to produce and assemble, when the fans are switched, the air door can automatically switch the air channels without electric power or manual operation, thereby the utility model is safe and energy-saving. Besides, the utility model does not have the problem that the air door is frozen by condensed water in winter, and satisfies the application requirements of mines with the danger of gas and coal dust explosion.
Description
Technical field
The utility model relates to a kind of mine main fan air door automatic transfer equipment, and the fast automatic of air door switched when being particularly suitable for requiring the mine of anti-gas and coal dust control blast to be used for switching blower fan.
Background technology
In order to guarantee Safety of Coal Mine Production, prevent that toxic and harmfuls such as fire damp, carbon monoxide from gathering, ensure that there are enough fresh airs the down-hole, coal mine must be installed the main fan of two covers with constant power, a cover running job, a cover is standby.When the main fan of running need regularly be fallen from power or hinder the shutdown maintenance for some reason, standby fan must be finished the switching of falling from power in 10 minutes.Common two typhoon machines are installed in parallel on same air channel, stop distinguished and admirablely to leak out from the standby fan air channel, reduce air leak rate of air curtain, prevent distinguished and admirable short circuit, must seal its air channel when standby fan does not turn round.When special circumstances such as down-hole generation methane accumulation needed inverted ventilation, the air door of opening can not be closed with inverted ventilation is distinguished and admirable.
At present, how pushing away (drawing) with electronic, pneumatic or hydraulic pressure in the sealing of standby fan air channel moves, there are phenomenons such as technical sophistication, equipment operation and maintenance cost height, easy break-down, use and maintenance difficult, can not guarantee normal, the safe and reliable switching of falling from power, inverted ventilation and the operation of main fan.
Shandong Huaning Mining Group is improved prior art in main fan is fallen from power switching, uses electronic horizontal air door to be used for switching the blower fan air channel, but still exists following deficiency:
1, in use, need after the operation blower fan is out of service, manually start the horizontal air door that is installed in the operation blower fan air channel; The horizontal air door of opening installation in the standby fan air channel starts standby fan more then, realizes normally ventilating.Can not satisfy the requirement of " standby fan must be finished the switching of falling from power in 10 minutes " of " safety regulations in coal mine " regulation.
2, owing to the electronic puffer traction of use, the fault rate height, it is unreliable to work, and the waste electric energy.
3, because drawing up in the next downhole wet hot air, coal master's ventilating fan contains large quantity of moisture, winter is during fan operation, a large amount of water has condensed in the slideway of horizontal fan switching air door, and be frozen into ice very soon, the switching air door is frozen, the switching of can't normally falling from power brings very big hidden danger for the safety of mine.
Summary of the invention
In order to solve the problem of above existence, ensure coal mine safety, the utility model provides a kind of main fan that can open and close automatically to change air door automatically, and its technical scheme of taking is:
Automatically conversion air door comprises air door I and the blower fan I that is located in the blower fan air channel and is located at air door II and blower fan II in the standby fan air channel, also comprise respectively the blocking device I and the blocking device II that can carry out locking to air door I closed condition and open mode, and the blocking device III and the blocking device IV that can carry out locking to air door II closed condition and open mode respectively, the wire rope that passes the guiding fixed pulley connects air door I and air door II, air door I is during with wherein being opened among the air door II, and this air door drives another road air door by wire rope and closes.
The guiding fixed pulley is made up of guiding fixed pulley I and guiding fixed pulley II.
During operate as normal, the air door in the operation blower fan air channel is opened under suction function, by the pulling force of haulage cable the air door that is installed in the standby fan air channel is closed; Blower fan need be fallen from power when switching, and only need stop former operation blower fan, starts standby fan, and the air door in the standby fan air channel is opened under the effect of negative pressure, by the pulling force of haulage cable, the air door in the former operation blower fan air channel is closed; During inverted ventilation, then out of service present operation blower fan, the air door in the air channel is placed open position, and with blocking device the air door locking; Use the air door of closing in the standby fan air channel blocking device the air door locking, oppositely start blower fan and get final product.
The beneficial effect that the utility model has compared with prior art is: simple in structure, manufacturing and easy for installation, and can open automatically, close; Not electrification and hydraulic pressure, energy conservation, and satisfy instructions for use under the coal mine that gas and coal dust explosion hazard are arranged; Owing to be installed in the air channel problem that does not exist the water that is condensed to freeze.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
Air door I5 and blower fan I7 are installed in the blower fan air channel, and air door II6 and blower fan II8 are installed in the standby fan air channel.Blocking device I1 and blocking device II2 are fixed on the top, air channel near the position of air door I5 rotating shaft far-end, can carry out locking to air door I5 closed condition and open mode respectively.Blocking device III3 and blocking device IV4 are fixed on the top, air channel, position near air door II6 rotating shaft far-end simultaneously, can carry out locking to air door II6 closed condition and open mode respectively.Wire rope 11 passes guiding fixed pulley I10 and guiding fixed pulley II9, and the one end connects air door I5, and the other end connects air door II6, and air door I5 is during with wherein being opened among the air door II6, and this air door drives another road air doors by wire rope 11 and closes.
II8 quits work when blower fan, and during air door II6 operate as normal: blocking device I1, blocking device II2, blocking device III3 and blocking device IV4 place not blocking, and air door I5 opens under suction function; Air door II6 closes under the traction of wire rope 11, automaticallyes switch and finish operate as normal in the air channel.
I7 quits work when blower fan, and during blower fan II8 operate as normal: blocking device I1, blocking device II2, blocking device III3 and blocking device IV4 place not blocking, and air door II6 opens under suction function; Air door I5 closes under the traction of wire rope 11, automaticallyes switch and finish operate as normal in the air channel.
II8 quits work when blower fan, and during the work of blower fan I7 inverted ventilation: blocking device II2 is in the locking of air door I5 open mode; Blocking device III3 oppositely starts blower fan I7 and carries out inverted ventilation in the locking of air door II6 closed condition.
I7 quits work when blower fan, and during the work of blower fan II8 inverted ventilation: blocking device IV4 is in the locking of air door II6 open mode; Blocking device I1 oppositely starts blower fan II8 and carries out inverted ventilation in the locking of air door I5 closed condition.
Claims (2)
1. a mine main fan is changed air door automatically, comprise air door I (5) and the blower fan I (7) that is located in the blower fan air channel and be located at air door II (6) and blower fan II (8) in the standby fan air channel, it is characterized in that, also comprise respectively the blocking device I (1) and the blocking device II (2) that can carry out locking to air door I (5) closed condition and open mode, and the blocking device III (3) and the blocking device IV (4) that respectively can carry out locking to air door II (6) closed condition and open mode, the wire rope (11) that passes the guiding fixed pulley connects air door I (5) and air door II (6), during wherein being opened together among air door I (5) and the air door II (6), this air door drives another road air door by wire rope (11) and closes.
2. mine main fan according to claim 1 is changed air door automatically, it is characterized in that, the guiding fixed pulley is made up of guiding fixed pulley I (10) and guiding fixed pulley II (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200236819U CN201045302Y (en) | 2007-06-19 | 2007-06-19 | Main fan blower automatic transition air door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200236819U CN201045302Y (en) | 2007-06-19 | 2007-06-19 | Main fan blower automatic transition air door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201045302Y true CN201045302Y (en) | 2008-04-09 |
Family
ID=39308775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200236819U Expired - Fee Related CN201045302Y (en) | 2007-06-19 | 2007-06-19 | Main fan blower automatic transition air door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201045302Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291346A (en) * | 2013-06-08 | 2013-09-11 | 中国矿业大学 | Uninterrupted ventilation device and method for coal mine |
| CN103485814A (en) * | 2013-10-14 | 2014-01-01 | 四川广旺能源发展（集团）有限责任公司代池坝煤矿 | Wind path system for mine |
| CN103938988A (en) * | 2014-04-01 | 2014-07-23 | 熊世武 | Maintenance cellar closing door |
| CN112240219A (en) * | 2020-11-30 | 2021-01-19 | 卧龙电气南阳防爆集团股份有限公司 | Air duct switching device and mining press-in type ventilation system suitable for alpine regions |
-
2007
- 2007-06-19 CN CNU2007200236819U patent/CN201045302Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291346A (en) * | 2013-06-08 | 2013-09-11 | 中国矿业大学 | Uninterrupted ventilation device and method for coal mine |
| CN103485814A (en) * | 2013-10-14 | 2014-01-01 | 四川广旺能源发展（集团）有限责任公司代池坝煤矿 | Wind path system for mine |
| CN103938988A (en) * | 2014-04-01 | 2014-07-23 | 熊世武 | Maintenance cellar closing door |
| CN112240219A (en) * | 2020-11-30 | 2021-01-19 | 卧龙电气南阳防爆集团股份有限公司 | Air duct switching device and mining press-in type ventilation system suitable for alpine regions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201045302Y (en) | Main fan blower automatic transition air door | |
| CN105041375B (en) | A kind of mine local fan ventilated control system | |
| CN108423454A (en) | Powder system in a kind of coal dust jumbo bag unpacking | |
| CN204591331U (en) | The mine development end dash system of adjoint high-concentration hydrogen sulfide and gas | |
| CN103291346A (en) | Uninterrupted ventilation device and method for coal mine | |
| CN101629490B (en) | Full air pressure air borrowing method for coal mine underground tunneling roadway | |
| CN204877525U (en) | Auto -induction open -close type air door in pit | |
| CN201262094Y (en) | Pneumatic wind door interlocking apparatus for coal mine down-hole air duct | |
| CN204610333U (en) | Quo of local Fan for Mine flame-proof converter control system | |
| CN201103402Y (en) | Mine down-hole tunnel ventilating device | |
| CN201148877Y (en) | Pneumatic power interlock air door | |
| CN102230388A (en) | Underground air door interlocking device | |
| CN206071900U (en) | Automatic speed-limiting pneumatic sump pump control system | |
| CN205382948U (en) | Coal mine safety air door winch monitored control system of PLC control | |
| CN105647550B (en) | A kind of coal charging car-dedusting system protection device | |
| CN201561444U (en) | Triple sealing hot wind isolation door with double plugging boards | |
| CN201027544Y (en) | Start-stop control device and locking device for coal mine down-hole air gate | |
| CN111520175B (en) | Switching device for main ventilator and standby ventilator of mine | |
| CN210192525U (en) | Anti-headwind device for coal mine conveying belt | |
| CN201262095Y (en) | Natural ventilation equipment for underground mine | |
| CN210509262U (en) | Fire smoke flow drainage device of belt conveyor | |
| CN221032707U (en) | Air control air door anti-clamping device | |
| CN201884045U (en) | Mine automatic switching air door | |
| CN203239384U (en) | Gas emission control device | |
| CN215633082U (en) | Three-fan double-power-source mine ventilation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080409 Termination date: 20100619 |