CN106050289A - Movable mine ventilation device - Google Patents
Movable mine ventilation device Download PDFInfo
- Publication number
- CN106050289A CN106050289A CN201610500866.8A CN201610500866A CN106050289A CN 106050289 A CN106050289 A CN 106050289A CN 201610500866 A CN201610500866 A CN 201610500866A CN 106050289 A CN106050289 A CN 106050289A
- Authority
- CN
- China
- Prior art keywords
- noise reduction
- frequency noise
- reduction layer
- ventilation device
- ventilation unit
- 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.)
- Pending
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 46
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000011491 glass wool Substances 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 6
- 239000002023 wood Substances 0.000 claims description 6
- 241000973497 Siphonognathus argyrophanes Species 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- 230000008719 thickening Effects 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000030279 gene silencing Effects 0.000 abstract 8
- 238000009792 diffusion process Methods 0.000 abstract 2
- 239000002817 coal dust Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention discloses a movable mine ventilation device. The movable mine ventilation device comprises a ventilation device body, a base, a spraying room, a low-frequency silencing layer and a high-frequency silencing layer. The ventilation device body is installed on the base. A frequency converter is arranged on the ventilation device body. A draught fan is arranged on the left portion of the interior of the ventilation device body. An air inlet pipe port is formed in the right end of the ventilation device body. A filter screen is arranged on the air inlet pipe port. An air outlet pipe port is formed in the left end of the ventilation device body. A water return pipe is arranged at the bottom of the spraying room. A diffusion plate is arranged at the left end of the air outlet pipe port. The low-frequency silencing layer and the high-frequency silencing layer are arranged in the diffusion plate. The low-frequency silencing layer and the high-frequency silencing layer are made of waterproof centrifugal glass wool. According to the movable mine ventilation device, through the arrangement of the spraying room, the air humidity can be increased, and the content of dust in air can be reduced, so that the air quality in a mine roadway is improved; and through the arrangement of the low-frequency silencing layer and the high-frequency silencing layer, noise can be lowered.
Description
Technical field
The present invention relates to mine field of electromechanical equipment, a kind of mine ventilation device that can move.
Background technology
Currently, at underground coal mine, due to the gushing out of gas, the flying upward of coal dust, the breathing of personnel, the shadow such as rot of mine timber
Ring, make to be harmful to, toxic gas is continuously increased；Meanwhile, along with the increase of well depth, downhole temperature also to raise.Therefore, underground work
Personnel work the most in this environment, the most unhealthful, the most also can suffocate.Particularly when the biogas in air and coal dust
Content when exceeding setting, it is possible to cause gas, coal-dust explosion that consequence is serious.In order to ensure that underground work personnel's is strong
Health and safety in production, the fresh air on the air pollution being necessary for making in underworkings and work surface and ground is constantly handed over
Stream, is centrifuged formula Mine Ventilator, improves working conditions, and existing ventilation unit is mostly fixing, it is impossible to enough mobile
's.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, the easy to use mine ventilation device that can move, with
The problem solving to propose in above-mentioned background technology.
For achieving the above object, the present invention provides following technical scheme:
A kind of mine ventilation device that can move, including ventilation unit body, base, spray chamber, low frequency noise reduction layer and high frequency
Noise reduction layer, described ventilation unit body is arranged on base, and ventilation unit wood body is provided with converter, ventilation unit wood body interior
Portion's left part is provided with blower fan, and the right-hand member of ventilation unit body is provided with air intake pipe orifice, and air inlet is provided with dirt filtrating screen, ventilation unit body
Left end be provided with air outlet tube mouth, ventilation unit body is arranged over the control switch for controlling blower fan, and this is the most internal for ventilation unit
Being provided with fixed mount, blower fan is fixedly mounted on fixed mount；Being provided with redundant electrical power in described base, redundant electrical power is connected with blower fan,
Being provided with roller below base, base and roller junction are provided with amortisseur, and roller is provided with four；Described spray chamber is located at blower fan
Left side, the both sides of spray chamber are equipped with water fender, and water fender is provided with several air vents, and the top of spray chamber is provided with spray
Pipe, the lower section of shower is laid with several atomizers, and shower connects water inlet pipe, and the bottom of water inlet pipe connects water pump,
Water pump is located in base, and the left side of water pump is provided with cistern；Additionally, the bottom of described spray chamber is provided with return pipe；Described go out
The left end of airduct mouth is provided with diffuser plate, is provided with low frequency noise reduction layer and high frequency noise reduction layer in diffuser plate, and low frequency noise reduction layer uses and thickeies
250 millimeters of specification bloop compositions of type, low frequency noise reduction layer material is waterproof centrifugally glass-wool, and high frequency noise reduction layer uses 150 millimeters
The bloop composition of specification, high frequency noise reduction layer material is waterproof centrifugally glass-wool.
Further: described low frequency noise reduction layer is located at the right-hand member of high frequency noise reduction layer.
Further: described return pipe is provided with electromagnetic valve.
Compared with prior art, the dirt filtrating screen that the present invention is arranged can the most simply reduce the content of dust in air；
The spray chamber arranged can either increase the humidity of air, can also reduce the content of dust in air simultaneously, thus improve drive
Interior air quality, low frequency noise reduction layer and the high frequency noise reduction layer of setting can reduce noise；The roller arranged enables to ventilate
The convenient movement of device.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of mine ventilation device that can move.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the technical scheme of this patent is described in more detail.
Referring to Fig. 1, a kind of mine ventilation device that can move, including ventilation unit body 1, base 2, spray chamber
19, low frequency noise reduction layer 21 and high frequency noise reduction layer 20, described ventilation unit body 1 is arranged on base 2, on ventilation unit wood body 1
Being provided with converter, the inside left part of ventilation unit wood body 1 is provided with blower fan 8, and the right-hand member of ventilation unit body 1 is provided with air intake pipe orifice
10, air inlet 10 is provided with dirt filtrating screen 11, and the left end of ventilation unit body 1 is provided with air outlet tube mouth 3, above ventilation unit body 1
Being provided with the control switch 9 for controlling blower fan 8, be provided with fixed mount in ventilation unit body 1, blower fan 8 is fixedly mounted on fixed mount
On；Being provided with redundant electrical power 12 in described base 2, redundant electrical power 12 is connected with blower fan 8, is provided with roller 14, base 2 below base 2
Being provided with amortisseur 13 with roller 14 junction, roller 14 is provided with four, and by set amortisseur 13, in mine, road is concavo-convex not
Flat, when mine ventilation device is moving by roller 13 when, it is possible to reduce the vibrations infringement to mine ventilation device；Described
Spray chamber 19 is located at the left side of blower fan 8, and the both sides of spray chamber 19 are equipped with water fender 4, and water fender 4 is provided with several and ventilates
Hole, the top of spray chamber 19 is provided with shower 6, and the lower section of shower 6 is laid with several atomizers 5, and shower 6 connects
Water inlet pipe 7, the bottom of water inlet pipe 7 connects water pump 15, and water pump 15 is located in base 2, and the left side of water pump 15 is provided with cistern 16；
Additionally, the bottom of described spray chamber 19 is provided with return pipe 17, return pipe 17 is provided with electromagnetic valve 18；During use, first pass through control
Switch 9 unlatching blower fan 8, then starts water pump 15 and opens electromagnetic valve 18, when the air in drive is under the effect of ventilation blower,
Air first passes through dirt filtrating screen 11 and enters in air intake pipe orifice 10, then in spray chamber 19, is added by the air after spraying
Its humidity, air blows out from air outlet tube mouth 3 subsequently；The left end of described air outlet tube mouth 3 is provided with diffuser plate 22, is provided with in diffuser plate 22
Low frequency noise reduction layer 21 and high frequency noise reduction layer 20, and low frequency noise reduction layer 21 is located at the right-hand member of high frequency noise reduction layer 20, low frequency noise reduction layer 21
Using 250 millimeters of specification bloop compositions of thickening type, low frequency noise reduction layer 21 material is waterproof centrifugally glass-wool, low frequency absorption coefficient
More than 0.3, high frequency noise reduction layer 20 uses the bloop of 150 millimeters of specifications to form, and high frequency noise reduction layer 20 material is waterproof centrifugal
Glass cotton, high frequency acoustic absorptivity is more than 0.8, it is possible to effectively widen sound sucting band.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of the spirit or essential attributes of the present invention, it is possible to realize the present invention in other specific forms.Therefore, no matter
From the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all by fall in the implication of equivalency and scope of claim
Change is included in the present invention.Should not be considered as limiting involved claim by any reference in claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only wraps
Containing an independent technical scheme, this narrating mode of description is only that for clarity sake those skilled in the art should
Description can also be formed those skilled in the art through appropriately combined as an entirety, the technical scheme in each embodiment
May be appreciated other embodiments.
Claims (3)
1. the mine ventilation device that can move, including ventilation unit body (1), base (2), spray chamber (19), low frequency
Noise reduction layer (21) and high frequency noise reduction layer (20), it is characterised in that described ventilation unit body (1) is arranged on base (2), ventilate
Device wood body (1) is provided with converter, and the inside left part of ventilation unit wood body (1) is provided with blower fan (8), ventilation unit body (1)
Right-hand member be provided with air intake pipe orifice (10), air inlet (10) is provided with dirt filtrating screen (11), and the left end of ventilation unit body (1) is provided with out
Airduct mouth (3), ventilation unit body (1) is arranged over control switch (9) for controlling blower fan (8), ventilation unit body (1)
Inside being provided with fixed mount, blower fan (8) is fixedly mounted on fixed mount；Redundant electrical power (12), redundant electrical power it is provided with in described base (2)
(12) being connected with blower fan (8), base (2) lower section is provided with roller (14), and base (2) and roller (14) junction are provided with amortisseur
(13), roller (14) is provided with four；Described spray chamber (19) is located at the left side of blower fan (8), and the both sides of spray chamber (19) are equipped with
Water fender (4), water fender (4) is provided with several air vents, and the top of spray chamber (19) is provided with shower (6), shower (6)
Lower section be laid with several atomizers (5), shower (6) connects water inlet pipe (7), and the bottom of water inlet pipe (7) connects water
Pump (15), water pump (15) is located in base (2), and the left side of water pump (15) is provided with cistern (16)；Additionally, described spray chamber
(19) bottom is provided with return pipe (17)；The left end of described air outlet tube mouth (3) is provided with diffuser plate (22), and diffuser plate is provided with in (22)
Low frequency noise reduction layer (21) and high frequency noise reduction layer (20), low frequency noise reduction layer (21) uses 250 millimeters of specification bloop compositions of thickening type,
Low frequency noise reduction layer (21) material is waterproof centrifugally glass-wool, and high frequency noise reduction layer (20) uses the bloop composition of 150 millimeters of specifications,
High frequency noise reduction layer (20) material is waterproof centrifugally glass-wool.
A kind of mine ventilation device that can move the most according to claim 1, it is characterised in that described low frequency noise reduction layer
(21) right-hand member of high frequency noise reduction layer (20) it is located at.
A kind of mine ventilation device that can move the most according to claim 1, it is characterised in that described return pipe (17)
It is provided with electromagnetic valve (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500866.8A CN106050289A (en) | 2016-06-30 | 2016-06-30 | Movable mine ventilation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610500866.8A CN106050289A (en) | 2016-06-30 | 2016-06-30 | Movable mine ventilation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106050289A true CN106050289A (en) | 2016-10-26 |
Family
ID=57200309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610500866.8A Pending CN106050289A (en) | 2016-06-30 | 2016-06-30 | Movable mine ventilation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106050289A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288674A (en) * | 2017-07-11 | 2017-10-24 | 宁波智正伟盈信息科技有限公司 | A kind of air cleaning ventilation equipment in ore deposit hole |
| CN107313959A (en) * | 2017-07-24 | 2017-11-03 | 天津中隧通风机有限公司 | The multi-functional large fan for tunnel |
| CN108061045A (en) * | 2017-11-14 | 2018-05-22 | 平潭诚信智创科技有限公司 | A kind of mine special gas filter-type ventilation blower |
| CN108222997A (en) * | 2018-01-24 | 2018-06-29 | 郴州八方农林科技有限公司 | Mine laneway ventilation device |
| CN109026753A (en) * | 2018-07-18 | 2018-12-18 | 江苏展宏灌排科技有限公司 | One kind being used for squelch type Submersible Pump |
| CN109098490A (en) * | 2018-08-15 | 2018-12-28 | 郑州默尔电子信息技术有限公司 | A kind of outdoor windproof type communications equipment room |
| CN109404032A (en) * | 2018-12-11 | 2019-03-01 | 贵州大学 | A kind of underground air supply device of the coal mine digging convenient for filtering |
| CN109779676A (en) * | 2019-03-11 | 2019-05-21 | 付耀文 | A kind of multi-functional pit mining dust-extraction unit |
| CN109899306A (en) * | 2019-03-28 | 2019-06-18 | 广州京海科技有限公司 | A kind of wide blower of working range for tunnel ventilation |
| CN110107516A (en) * | 2019-06-04 | 2019-08-09 | 黄娉 | A kind of clean type mine ventilator with safeguard function |
| CN110529171A (en) * | 2019-09-06 | 2019-12-03 | 嵊州佳想汽车用品有限公司 | A kind of mobile dedusting car of surface mine |
| CN110847944A (en) * | 2019-11-19 | 2020-02-28 | 车志敏 | Ventilation adjusting device for underground works |
| CN111550418A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Low-noise high-efficiency centrifugal blower |
| CN116335747A (en) * | 2023-05-30 | 2023-06-27 | 山西凌志达煤业有限公司 | Ventilating and dust removing device for coal mine tunneling surface |
-
2016
- 2016-06-30 CN CN201610500866.8A patent/CN106050289A/en active Pending
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288674B (en) * | 2017-07-11 | 2019-07-02 | 宁波智正伟盈信息科技有限公司 | A kind of air cleaning ventilation equipment in mine hole |
| CN107288674A (en) * | 2017-07-11 | 2017-10-24 | 宁波智正伟盈信息科技有限公司 | A kind of air cleaning ventilation equipment in ore deposit hole |
| CN107313959A (en) * | 2017-07-24 | 2017-11-03 | 天津中隧通风机有限公司 | The multi-functional large fan for tunnel |
| CN108061045A (en) * | 2017-11-14 | 2018-05-22 | 平潭诚信智创科技有限公司 | A kind of mine special gas filter-type ventilation blower |
| CN108222997A (en) * | 2018-01-24 | 2018-06-29 | 郴州八方农林科技有限公司 | Mine laneway ventilation device |
| CN109026753A (en) * | 2018-07-18 | 2018-12-18 | 江苏展宏灌排科技有限公司 | One kind being used for squelch type Submersible Pump |
| CN109098490A (en) * | 2018-08-15 | 2018-12-28 | 郑州默尔电子信息技术有限公司 | A kind of outdoor windproof type communications equipment room |
| CN109404032A (en) * | 2018-12-11 | 2019-03-01 | 贵州大学 | A kind of underground air supply device of the coal mine digging convenient for filtering |
| CN109404032B (en) * | 2018-12-11 | 2024-06-28 | 贵州大学 | Underground air supply device convenient to filter and used for coal mine mining |
| CN109779676B (en) * | 2019-03-11 | 2020-08-25 | 新疆亚克斯资源开发股份有限公司 | Multifunctional mine mining dust removal device |
| CN109779676A (en) * | 2019-03-11 | 2019-05-21 | 付耀文 | A kind of multi-functional pit mining dust-extraction unit |
| CN109899306B (en) * | 2019-03-28 | 2020-10-27 | 帕格曼科技(太仓)有限公司 | Fan with wide working range for tunnel ventilation |
| CN109899306A (en) * | 2019-03-28 | 2019-06-18 | 广州京海科技有限公司 | A kind of wide blower of working range for tunnel ventilation |
| CN110107516A (en) * | 2019-06-04 | 2019-08-09 | 黄娉 | A kind of clean type mine ventilator with safeguard function |
| CN110107516B (en) * | 2019-06-04 | 2021-11-05 | 黄娉 | Clean mining fan with protection function |
| CN110529171A (en) * | 2019-09-06 | 2019-12-03 | 嵊州佳想汽车用品有限公司 | A kind of mobile dedusting car of surface mine |
| CN110529171B (en) * | 2019-09-06 | 2021-06-11 | 山东梁山际通专用车制造有限公司 | Movable dust removal vehicle for surface mine |
| CN110847944A (en) * | 2019-11-19 | 2020-02-28 | 车志敏 | Ventilation adjusting device for underground works |
| CN110847944B (en) * | 2019-11-19 | 2021-02-19 | 赣州宝盈建设工程有限公司 | Ventilation adjusting device for underground works |
| CN111550418A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Low-noise high-efficiency centrifugal blower |
| CN116335747A (en) * | 2023-05-30 | 2023-06-27 | 山西凌志达煤业有限公司 | Ventilating and dust removing device for coal mine tunneling surface |
| CN116335747B (en) * | 2023-05-30 | 2023-09-15 | 山西凌志达煤业有限公司 | Ventilating and dust removing device for coal mine tunneling surface |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106050289A (en) | Movable mine ventilation device | |
| CN106089281A (en) | A kind of crawler type mine ventilation device | |
| KR101512409B1 (en) | Hood Cap for Anti-dew Condensation | |
| CN105201540A (en) | Mine ventilation device | |
| CN104032933A (en) | Pressure-equalizing kitchen double-shaft centralized air supply and smoke exhaust system device | |
| CN105823140A (en) | Air purifying device | |
| KR101865613B1 (en) | Indoor ventilation device for using the air exhaust | |
| CN106594955A (en) | Prefabricated steel structure house central ventilation system and construction method thereof | |
| WO2019184506A1 (en) | Outdoor pipe-connecting structure and air conditioner indoor unit having same | |
| CN106123241A (en) | A kind of city indoor substation transformer chamber ventilation noise reduction system | |
| CN101949568A (en) | Maze type broadband sound-proof ventilator | |
| CN205825228U (en) | A kind of floating vibration isolation noise reduction type air conditioning system building formula building | |
| CN102619545A (en) | Lower exhaust system and method for tunnel air | |
| CN109179160A (en) | A kind of ventilation device for the clean purification in elevator | |
| CN105465939A (en) | Air feeder | |
| KR20110052935A (en) | Noise reduction range hood | |
| CN207687065U (en) | Silencing apparatus and sweeping machine | |
| CN205482440U (en) | Cooling tower system | |
| CN205556098U (en) | Oxygenerator amortization aircraft bonnet | |
| CN205825348U (en) | A kind of city indoor substation transformer chamber ventilation noise reduction system | |
| CN107824591A (en) | A kind of smoking apparatus for fume treatment | |
| CN209009940U (en) | A kind of ventilation device for the clean purification in elevator | |
| CN106679006A (en) | Fresh air purifying system and mounting method thereof | |
| CN207644611U (en) | A kind of ventilation denoising device in ship cabin | |
| CN202885202U (en) | Sleeve-type air funnel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161026 |