| Patents for E21F 1 - Ventilation of mines or tunnels; Distribution of ventilating currents (2,288) |
|---|
| 05/31/2012 | CA2820643A1 System and apparatus for connecting a gas source to a thermal oxidiser |
| 05/30/2012 | CN202250206U Full-automatic safety equipment of roadway with coal-extraction working surface |
| 05/30/2012 | CN202250205U Full automatic safety equipment of well lane of stope working face |
| 05/30/2012 | CN202250204U Full-automatic safety equipment of roadway with coal-extraction working surface |
| 05/30/2012 | CN202250203U Equipment for comprehensively preventing 'one-ventilation and three-prevention' accidents on driving face |
| 05/30/2012 | CN202250202U Full-automatic safety equipment for working face roadway |
| 05/30/2012 | CN202250201U Device for comprehensive prevention of coal mining face ''one ventilation and three prevention'' accidents |
| 05/30/2012 | CN202250200U 'Ventilation, dust, gas and fire prevention' accident equipment capable of providing comprehensive precaution for stope face |
| 05/30/2012 | CN202250199U Tunneling working face well tunnel full-automatic safety device |
| 05/30/2012 | CN202250198U Full-automatic safety equipment of roadway with coal-extraction working surface |
| 05/30/2012 | CN202250197U Full-automatic safety equipment for working face roadway |
| 05/30/2012 | CN202250196U 'Ventilation, dust, gas and fire prevention' accident equipment capable of providing comprehensive precaution for stope face |
| 05/30/2012 | CN202250195U Comprehensive 'one-ventilation and three-prevention' accident preventing device of coal face |
| 05/30/2012 | CN202250194U Full-automatic safety equipment for driving face roadway |
| 05/30/2012 | CN202250193U Tunneling working face well tunnel full-automatic safety device |
| 05/30/2012 | CN202250192U Full-automatic safety device of heading working face underworking |
| 05/30/2012 | CN202250191U Full-automatic security device for tunnel on driving face |
| 05/30/2012 | CN202250189U One-ventilation and three-prevention equipment for comprehensively preventing accidents on heading face |
| 05/30/2012 | CN202250188U Comprehensive equipment for preventing accidents in 'one ventilation and three prevention' of stope |
| 05/30/2012 | CN202250187U Equipment for comprehensively preventing 'one-ventilation and three-prevention' accidents of working faces |
| 05/30/2012 | CN202250185U Comprehensive prevention equipment for one-ventilation and three-prevention accidents in stope face |
| 05/30/2012 | CN202250184U Device for preventing 'one ventilation and three prevention' accidents occurred on stope working face comprehensively |
| 05/30/2012 | CN202250183U Full-automatic safety equipment for recovery working face well lane |
| 05/30/2012 | CN202250181U Equipment for comprehensive prevention of one-ventilation and three-prevention accidents of stope |
| 05/30/2012 | CN202250180U Device for comprehensive prevention of one-ventilation three-prevention accident of mining face |
| 05/30/2012 | CN202250142U Automatic damper locking device |
| 05/30/2012 | CN202250141U Novel mechanical air door automatic locking device |
| 05/30/2012 | CN202250140U Air duct |
| 05/30/2012 | CN202250139U Return air heat exchanger of high-speed mine |
| 05/30/2012 | CN202250138U Improved ventilation structure of ventilated drill field |
| 05/30/2012 | CN102482943A 采用自然通风方式的隧道通风设备 Natural ventilation mode tunnel ventilation equipment |
| 05/30/2012 | CN102477868A Drilling dustproof equipment for underground coal bed of coal mine |
| 05/30/2012 | CN101886548B Polyurethane composite material hair dryer and manufacturing method thereof |
| 05/30/2012 | CA2761488A1 Coupling for ventilation assembly |
| 05/23/2012 | CN202228126U Device for comprehensively preventing 'one ventilation and three prevention' accidents occurred on stope working face |
| 05/23/2012 | CN202228125U Full automatic safety equipment for well lane of driving working face |
| 05/23/2012 | CN202228124U 'One ventilation and three preventions' equipment for comprehensively preventing accidents on working face |
| 05/23/2012 | CN202228122U Full-automatic safety equipment in extraction face roadway |
| 05/23/2012 | CN202228121U Full-automatic safety device of stope working face roadway |
| 05/23/2012 | CN202228119U Full-automatic safety device of driving working face roadway |
| 05/23/2012 | CN202228118U Full-automatic safety equipment in extraction face roadway |
| 05/23/2012 | CN202228117U 'Ventilation, dust, gas and fire prevention' accident equipment capable of providing comprehensive precaution for stope face |
| 05/23/2012 | CN202228116U Full-automatic safety device of stope working face roadway |
| 05/23/2012 | CN202228115U Full-automatic safety equipment in heading face roadway |
| 05/23/2012 | CN202228114U Full automatic safety equipment for well lane of stope working face |
| 05/23/2012 | CN202228113U Full automatic safety equipment for well lane of stope working face |
| 05/23/2012 | CN202228107U Ventilation air methane collection device at top of diffuser of main fan of coal mine |
| 05/23/2012 | CN202228101U Ventilating and dedusting device for tunnels |
| 05/23/2012 | CN202228100U Turning frequency-conversion ventilating system for tunnel |
| 05/23/2012 | CN202228086U Air door-free roadway-type ventilation long and large double-track tunnel with transverse passages |
| 05/23/2012 | CN202228079U Vehicle-mounted dust controlling and removing integrated device and system for machine digging face |
| 05/23/2012 | CN102472105A Tunnel ventilation control system of two-way tunnel using jet fan |
| 05/23/2012 | CN102465710A 气水混喷射流除尘风机 Gas-water mixture jet stream Dust Blower |
| 05/23/2012 | CN102465708A 矿井通风信息处理系统和方法 Mine Ventilation information processing system and method |
| 05/23/2012 | CN101798936B Rocker self-locking device of an air door |
| 05/23/2012 | CN101403391B Novel duplicate-power double-fan intelligent monitoring protection device |
| 05/09/2012 | CN202215289U Full-automatic safety device for well laneway of stoping working surface |
| 05/09/2012 | CN202215288U Full-automatic safety device for well laneway of tunneling working face |
| 05/09/2012 | CN202215287U Equipment for comprehensively preventing stope face from accidents related to 'ventilation and prevention of fire, gas and dust' |
| 05/09/2012 | CN202215285U Equipment for comprehensively preventing tunneling face from accidents related to 'ventilation and prevention of fire, gas and dust' |
| 05/09/2012 | CN202215274U Mining maneuvering ventilating window |
| 05/09/2012 | CN102444606A Fan frequency conversion control system and method for air pressure dynamic balance of mine stope |
| 05/02/2012 | CN102434184A Air door interlocking euphroe |
| 05/02/2012 | CN102434183A Air purifier for clearing away harmful gases and dust for long tunneling working surface |
| 04/25/2012 | CN202202885U 风力自平衡风门 Wind self-balancing damper |
| 04/25/2012 | CN202202884U 煤矿用防漏风装置 Mine leak air devices |
| 04/25/2012 | CN102425444A 一种循环使用型隧道防烟装置 A circular tunnel using a smoke device type |
| 04/25/2012 | CN102425443A 一种从平行隧道送风的隧道防烟装置 Tunnel smoke means a blast from the parallel tunnel |
| 04/25/2012 | CN102425442A 一种采矿区的变频调控通风系统及方法 Frequency control ventilation system and method for mining areas |
| 04/25/2012 | CN102425441A 利用旋转风流器和吸尘罩及管道综合降尘工艺 Merry and rotary vacuum hood and duct integrated dust technology |
| 04/25/2012 | CN102425431A 一种极近距离煤层开采巷道布置方法 A very close coal mining roadway layout method |
| 04/25/2012 | CN101737077B 矿井通风瓦斯减排与综合利用装置及方法 VAM abatement and comprehensive utilization apparatus and method |
| 04/18/2012 | CN102418547A 拨轮式风量可调节风窗 Dial-type air volume can be adjusted Windshield |
| 04/18/2012 | CN102418546A 一种下穿过街地下通道风动换气结构 One kind across the street underpass under wind-driven ventilation structure |
| 04/18/2012 | CN102418545A 自动风量控制器 Automatic air volume controllers |
| 04/18/2012 | CN102418544A 掘进巷道内风筒重叠段瓦斯治理与降尘方法 Overlapping segments of roadway excavation Duct Gas Control and dust method |
| 04/18/2012 | CN102416228A 综掘机司机呼吸装置 Digging Machine drivers breathing apparatus |
| 04/11/2012 | CN202187788U 矿用风门机械闭锁 Mine damper mechanical latching |
| 04/11/2012 | CN202187787U 用于巷道的碰撞式风门 Collision-type damper for roadway |
| 04/11/2012 | CN202185080U 综掘机司机呼吸装置 Digging Machine drivers breathing apparatus |
| 04/11/2012 | CN102410044A 爆炸波释放卸压后自动复位的立风井防爆门 After releasing the pressure relief blast wave automatic reset air shaft blast doors |
| 04/11/2012 | CN102410036A 一种高速矿井回风换热器及其使用方法 A high-speed mine return air heat exchanger and method of use |
| 04/04/2012 | CN202181912U 竹胶板自动风门 Bamboo automatic throttle |
| 04/04/2012 | CN202181911U 竹胶板无压风门 Bamboo without pressure damper |
| 04/04/2012 | CN102400701A 公路隧道互通式纵向通风方式 Interchange highway tunnel longitudinal ventilation mode |
| 04/04/2012 | CN101864981B 矿井局部降温方法及降温风机 Mine local cooling methods and cooling fan |
| 03/28/2012 | CN102392686A Lifting buffering self-restoring anti-explosive door of vertical shaft |
| 03/28/2012 | CN102392675A Method and device for collecting ventilation air methane on top of diffuser of main fan of coal mine |
| 03/28/2012 | CN102392672A Balance air door |
| 03/28/2012 | CN102392671A Manufacturing method of mine blow dryer |
| 03/28/2012 | CN102392670A Gas density regulator |
| 03/21/2012 | EP2165046B1 Method for eliminating smoke from and ventilating an underground train station |
| 03/21/2012 | CN202170805U 一种隧道施工用移动式自清洗干式集尘通风设备 A tunneling construction with removable self-cleaning dry dust ventilation equipment |
| 03/21/2012 | CN202170804U 双风机通风系统的三通风筒 Tee dual fan ventilation duct system |
| 03/21/2012 | CN202170803U 特长、深埋公路隧道平导通风运营系统 Long, deep road tunnel ventilation operating system level guide |
| 03/21/2012 | CN1786415B Stell cable chain band type combined mining machine with driving, conveying, ventilating and signalling functions |
| 03/21/2012 | CN102383854A Full-automatic safety equipment with personnel positioning system for heading stope roadway |
| 03/21/2012 | CN102383853A Full-automatic safety equipment of driving-face well roadway with personnel positioning |
| 03/21/2012 | CN102383852A Full-automatic safety equipment of stoping-face well roadway with personnel positioning |
| 03/21/2012 | CN102383851A Full-automatic safety equipment of driving-face well roadway with personnel positioning |