Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21F - Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels › E21F 1 - Ventilation of mines or tunnels; Distribution of ventilating currents
Patents for E21F 1 - Ventilation of mines or tunnels; Distribution of ventilating currents (2,288)
05/2014
05/28/2014CN102563793B 一种防爆排气系统 One kind of explosion-proof exhaust system
05/21/2014CN203603958U 用于煤矿立风井防爆门的液压反风锁扣装置 Hydraulic anti-lock devices for wind air shaft coal mine explosion-proof doors
05/21/2014CN203603957U 一种抗冲击竖井防爆门 One kind of shock shaft blast doors
05/21/2014CN203603956U 一种强力自动风门系统紧急避险装置 A powerful automatic throttle system emergency unit
05/21/2014CN203603955U 一种竖井出风口防护装置 One kind of silo outlet guards
05/21/2014CN203603954U 一种煤矿乏风输送系统 One kind of coal mine ventilation air transport system
05/21/2014CN203603953U 用于矿井的风路系统 Air duct systems for mines
05/21/2014CN103806928A 一种高负压区风门助力开启装置及制作方法 Apparatus and method of making a high-power vacuum zone damper open
05/14/2014CN103790629A 煤矿井下瓦斯浓度实时监测系统 Coal mine gas concentration in real-time monitoring system
05/14/2014CN103790608A 一种适用于深井掘进施工的压风压气联合通风降温方法 A gas pressure applied to the joint pressure ventilation cooling method of deep excavation construction
05/14/2014CN103790607A 一种煤矿采空区微流动的实验方法及其系统装置 An experimental method goaf micro-flow devices and systems
05/14/2014CN103790606A 一种煤矿局部通风机自动导风装置 One kind of mine local fan automatic wind deflector
05/14/2014CN103790605A 一种隧道救援车用大风量过滤通风系统 A tunnel rescue vehicles filtered ventilation system with strong winds
05/14/2014CN102720521B 双烟囱式隧道与上盖建筑联合自然通风系统 Double chimney tunnel and superstructure combined natural ventilation systems
05/13/2014US8721007 Highwall mining system, conveyor segment and method for providing such a mining system
05/07/2014CN203585423U 风机连接管 Fan connecting pipe
05/07/2014CN203584452U 金属矿山深部开采掘进巷道热交换模拟系统 Metal mines deep mining roadway heat exchange simulation system
05/07/2014CN203583266U 无缝风筒布生产用的上料装置 Used in the production of seamless cloth duct feeding device
05/07/2014CN103775122A 易自燃高瓦斯煤层采空区瓦斯抽采与煤炭自燃模拟实验装置 And Inflammable High Gas Coal Seam Gas extraction and coal spontaneous combustion simulation device
05/07/2014CN103775100A 一种预制装配式城市综合管廊 One kind of prefabricated Urban Pipe Gallery
05/07/2014CN102472105B 双向隧道用射流风机的隧道通风控制系统 Bidirectional tunnel with a jet fan tunnel ventilation control system
04/2014
04/30/2014CN203570339U Headwind-proof non-pressure balance air door for use in laneway
04/30/2014CN203570338U Ventilation door device
04/30/2014CN203570337U Down draught automatic switching tee joint of mine auxiliary fan
04/30/2014CN203570336U Mine air duct guide device
04/30/2014CN203570335U Ventilation structure of longitudinal air passages of subway long section
04/30/2014CN203570334U Air feeding adjusting device for mine dust removal system
04/30/2014CN103758555A Method for automatically generating ventilation network map by coal mine ventilation network based data
04/23/2014CN203559921U Rubber thermal-insulation wind cylinder
04/23/2014CN103742184A Electromagnetic mining air door locking device
04/23/2014CN103742183A Mining dust suppression air door
04/23/2014CN103742182A Strong tunnel ventilation device
04/16/2014CN203548296U Novel wind-lacked automatic switching control switch for coal mine digging ventilator
04/16/2014CN203548295U Wind-target magnetic-control-type wind power locking control switch
04/16/2014CN203547782U Mining underground pneumatic device for opening or closing air door
04/16/2014CN203547781U Remote-monitoring full-automatic mining damper system
04/16/2014CN203547780U Novel air door ditch anti-air leaking device
04/16/2014CN203547779U Hydraulic fan for extinguishing tunnel fires
04/16/2014CN103726867A Remote automatic sealing system and method for coal mine
04/16/2014CN103726866A Interlocking control device for air door and car stop
04/16/2014CN103726865A Remote intelligent adjusting wind window
04/16/2014CN103726864A Forward and reverse linkage motorized air damper
04/16/2014CN103726863A Jet fan for tunnel
04/09/2014CN203532319U Counter-rotating fan blade of mine fan
04/09/2014CN203532296U Underground ventilation frequency-conversion control system
04/09/2014CN203531948U Automatic locking anti-collision device for mining ventilation doors
04/09/2014CN203531947U Automatic pressure-free air door
04/09/2014CN203531946U Pipe opening size automatic adjusting device of automatic moving type flexible air pipe for tunnel construction
04/09/2014CN203531945U Shock-resistant oxygen-supplying wall-attaching air duct
04/09/2014CN203531944U Ventilation monitoring system for tunnel construction
04/09/2014CN203531943U Flexible air duct air speed automatic adjusting system for tunnel construction
04/09/2014CN203531942U Compound ventilation system for excavation of large-section long tunnel
04/09/2014CN102606159B Medium thick heavy-pitch crushed ore body frame type artificial top downward segmenting cemented filling method
04/03/2014US20140094105 Method And System For Fluid Flow Control In A Fluid Network System
04/02/2014CN103696806A Gas tunnel control method and system thereof
04/02/2014CN103696796A Mechanical automatic locking device for coal mine air doors
04/02/2014CN102536295B Intelligent local ventilation system
04/02/2014CN102518462B Subway platform smoke exhausting method used with screen door system compatibly
04/02/2014CN101936259B Wind power utilization method and special device in wind discharge barrel of mine
03/2014
03/26/2014CN203500075U Coal mine main fan on-line monitoring system
03/26/2014CN103670515A Underground coal mine air-door fault early warning system
03/26/2014CN103670483A Mine air door capable of being automatically closed
03/26/2014CN103670482A Multifunctional bidirectional air door rope pressing wheel
03/26/2014CN103670481A Double-edge cylindrical overall-seamless-weaving ventilating duct gray fabric
03/26/2014CN103670480A Intelligent adjusting device of underground coal mine air window
03/26/2014CN103670479A Ventilation display device for safety of underground pipeline
03/26/2014CN103670478A Coal mine ventilation system
03/26/2014CN103670477A Conveying system of coal mine ventilation air methane
03/26/2014CN102720519B Novel tunnel ventilation system for subway station
03/26/2014CN102635384B Air distribution controller for tunnel construction air duct
03/26/2014CN102505955B Urban traffic tunnel fire disaster fume diffusion model device
03/26/2014CN102482943B Tunnel air-exchange device using a natural air-exchange method
03/26/2014CN102287212B Y-shaped ventilation method
03/19/2014CN103644132A Mining local ventilation machine with detachable plastic structure
03/13/2014WO2014036611A1 Ventilator and blade therefor
03/12/2014CN203476379U Automatic return trigger mechanism of spare explosion-proof manhole cover of mine air shaft
03/12/2014CN203476378U Automatic return device of spare explosion-proof manhole cover of mine air shaft
03/12/2014CN203476377U Rotary vane air doors used for mines
03/12/2014CN203476376U Underground coal mine local ventilator wind direction adjusting device
03/12/2014CN203476375U U+U type laneway ventilating system of coalface
03/12/2014CN103628907A Air door closing and locking device
03/12/2014CN103628906A Intelligent control ventilating device for coal mine blind hole
03/11/2014DE202013011180U1 Vorrichtung zur Brandbekämpfung insbesondere durch Rauchgasabsaugung Apparatus for fire fighting in particular by smoke evacuation
03/05/2014CN203463137U Improved automatic air door locking device
03/05/2014CN203463136U Pressure-resistant linkage alarm air door
03/05/2014CN203463135U Joint anti-skid device of rubber air duct
03/05/2014CN103620162A Ventilation system repair bandage
02/2014
02/27/2014US20140057544 Mine stopping panel with end caps and louver connections
02/26/2014EP2700820A1 Motor-securing system
02/26/2014CN203454356U Diffuser plate suspension strip
02/26/2014CN203452830U Tunnel natural ventilation cooling structure
02/26/2014CN203452829U Novel adjusting air window
02/26/2014CN203452828U Novel universally-bendable coated fabric double-resistance air duct
02/26/2014CN203452827U Electric cable tunnel heat radiation structure
02/26/2014CN203452826U Ventilating system used for city underground annular tunnel
02/26/2014CN203452825U Tunnel forced ventilation cooling structure
02/26/2014CN203452824U Ventilating system for city dual-layer mountain tunnel
02/26/2014CN203452823U Ventilating silencing device for tunnel
02/26/2014CN103603691A Mine ventilation dynamic resolving and analysis early warning method and system
02/24/2014CA2823202A1 Ventilation ducting arrangement
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