| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 08/22/2012 | CN202391457U Concentrated water injection device for flame-proof water channel |
| 08/22/2012 | CN202391456U Electromagnetic ventilation dust-collecting device for mine |
| 08/22/2012 | CN202391455U Mining horizontal type dry filter-bag dust collector |
| 08/22/2012 | CN202387609U Novel dust prevention sprinkler |
| 08/22/2012 | CN102644475A Air-water linkage spraying device |
| 08/16/2012 | US20120205129 Method of Controlling Mine Fires With Polymeric Gel |
| 08/15/2012 | CN202381115U Bidirectional control full-fracture surface dustproof water curtain for mine |
| 08/15/2012 | CN202381114U Mining pneumatically controlled spray and dust reduction device |
| 08/15/2012 | CN202381113U Spray system for main roadway |
| 08/15/2012 | CN202381112U Multi-functional urban traffic tunnel fire smoke diffusion model device |
| 08/15/2012 | CN202381095U Novel concrete spraying machine used underground |
| 08/15/2012 | CN202380430U Heat preservation and dust suppression vehicle |
| 08/15/2012 | CN102639814A Steeping liquor used as a means of controlling the risk of fire and explosion of organic extractive materials |
| 08/15/2012 | CN102635387A Front canopy automatic water curtain of digging and blasting working surface and working method thereof |
| 08/08/2012 | CN202370573U Chain starting circuit structure for dust removal fan and pulp shooting machine |
| 08/08/2012 | CN202370572U Mine blasting interlocked atomization device |
| 08/08/2012 | CN202370571U Simple blasting spraying starting device for coalmine |
| 08/08/2012 | CN202370570U Mining centrifugal dedusting device |
| 08/08/2012 | CN202370569U Autorotation spraying device |
| 08/08/2012 | CN202370568U Wind and water mixed jet curtain dust falling device |
| 08/08/2012 | CN202370567U Built-in spraying device for sublevel caving coal hydraulic support |
| 08/08/2012 | CN202370566U Water bag frame used for installing explosion proof water bag underground |
| 08/08/2012 | CN202370565U Mining drilling air slag-removal dust-capturing integrated device |
| 08/08/2012 | CN102628370A Mobile natural ventilation and gas collecting device for underground mine |
| 08/08/2012 | CN101638570B Preparation method of binding agent capable of restraining swirling coal powder of coal train |
| 08/01/2012 | CN202360144U Gas buffer explosion door |
| 08/01/2012 | CN202360129U Long-distance timed intermittent spray dust-settling device |
| 08/01/2012 | CN202360128U Rear conveyor connected with dust removing device |
| 07/25/2012 | CN202348322U Sound control sensor |
| 07/25/2012 | CN202348321U Mass-production and automatic-regulation spraying device |
| 07/25/2012 | CN202348320U Belt control sensor |
| 07/25/2012 | CN202348319U Light-operated sensor |
| 07/25/2012 | CN202348318U Nozzle |
| 07/25/2012 | CN202348317U Automatic rotary spray device |
| 07/25/2012 | CN202348316U Air screen and water mist linkage system for preventing fully mechanized excavation face dusts |
| 07/25/2012 | CN202348315U Explosion-proof large-volume equipment shell body for mine |
| 07/25/2012 | CN202348284U Four-wheel hydraulic drive roadway milling and planing machine |
| 07/25/2012 | CN202348114U Vertical shaft direct-discharging de-dusting noise-reducing integrated umbrella-shaped drilling machine |
| 07/25/2012 | CN202346216U Heat preservation heating device of reagent tank of dust suppression vehicle |
| 07/25/2012 | CN102606209A Special water spray fireproof shutter device for tunnel |
| 07/25/2012 | CN102606189A Fire extinguishing and cooling system for coal cavities and loose areas in fire district of coal field |
| 07/25/2012 | CN102606188A Dust removing fan and water system control method used for dust removing fan |
| 07/25/2012 | CN102061930B Downhole fast sealing device in coal mine |
| 07/25/2012 | CN102061929B Blowback fast explosion suppression device for coal mining working face |
| 07/25/2012 | CN101886549B Control device for automatic dust suppression device by water spray |
| 07/25/2012 | CN101717617B Dedusting agent composition and using method thereof |
| 07/18/2012 | CN102587957A Anti-explosion hydraulic water sprinkler |
| 07/18/2012 | CN102587956A Downhole parallel jet dust removal system |
| 07/18/2012 | CN102587955A Tunnel dust suppression system |
| 07/18/2012 | CN101845961B Bracket spraying dust reduction emulation device for coal mine working surface |
| 07/18/2012 | CN101761354B Vertical structure oxidation bed of mine ventilation air methane gas thermal oxidation device |
| 07/11/2012 | CN202325672U 一种防爆井盖装置 One kind of explosion-proof covers device |
| 07/11/2012 | CN202325628U 煤矿井下巷道式煤层瓦斯压裂设备 Coal mine roadway coal seam gas fracturing equipment |
| 07/11/2012 | CN202325625U Negative-pressure type drilling hole dust catcher |
| 07/11/2012 | CN202325624U 自动水幕开关 Automatic water curtain switch |
| 07/11/2012 | CN202325623U 矿用自动式隔爆岩粉棚装置 Mine explosion rock powder automatic shelf unit |
| 07/11/2012 | CN202325622U 一种隧道专用智能水雾灭火机 A tunneling dedicated Smart mist extinguisher |
| 07/11/2012 | CN202325621U 全方位立体可调喷雾装置 Full three-dimensional adjustable spray device |
| 07/11/2012 | CN202325620U 瓦斯粉尘敛集器 Gas grabbing dust collector filter |
| 07/11/2012 | CN202325619U 安装有流量装置的煤层注水、抽放两用封孔装置 Coal flow devices installed water, drainage dual sealing device |
| 07/11/2012 | CN202325618U 防爆挡板 Explosion baffle |
| 07/11/2012 | CN202325617U 干式打钻除尘装置 Dry drilling dust removal device |
| 07/11/2012 | CN102562130A Mining air purifying device |
| 07/11/2012 | CN102562129A Dust removal device for intake air of mine |
| 07/11/2012 | CN102562128A Pressure-sensitive triggered spraying device for mine cars |
| 07/11/2012 | CN102562127A Integrated automatic spraying device |
| 07/11/2012 | CN102562126A Hole sealing device for coal seam water infusion long hole |
| 07/11/2012 | CN102562125A Ground direct injection type liquid nitrogen fire preventing and extinguishing system |
| 07/11/2012 | CN102562124A Underground liquid nitrogen direct injection type fire preventing and extinguishing device |
| 07/11/2012 | CN102562123A Mine high-explosive coal dust explosion suppressant and preparation method thereof |
| 07/11/2012 | CN102562116A Method for configuring ventilation system of electric tunnel |
| 07/04/2012 | CN202300480U 一种抽放钻孔集尘装置 A drilling dust collecting means Drainage |
| 07/04/2012 | CN202300479U 远程高压放炮喷雾装置 Remote high-pressure blasting spray device |
| 07/04/2012 | CN202300478U 煤矿管路、风筒清尘装置 Mine piping, duct means clear dust |
| 07/04/2012 | CN202300477U 转载点自动喷雾降尘控制装置 Reprinted point automatic spraying control device |
| 07/04/2012 | CN202300476U 月牙形自动过煤喷雾装置 Crescent automatic spray device over coal |
| 07/04/2012 | CN202300475U 自压式快速启动连续水喷雾防爆抑爆系统 Self-pressure water spray quick start continuous explosion suppression system |
| 07/04/2012 | CN202300474U 一种带电磁化水除煤尘设备 A charged magnetized water in addition to coal dust equipment |
| 07/04/2012 | CN202300473U 地铁人防工程贯穿孔防火封堵系统 Underground fire blocking air defense systems engineering through hole |
| 07/04/2012 | CN202300472U 转载点透气性防尘网罩 Reprinted point breathable air filter cover |
| 07/04/2012 | CN202300421U 一种带喷浆机械手和控除尘功能的扒渣机 A tape spraying robots and control functions slag removal machine |
| 07/04/2012 | CN202298682U 煤矿用铲装式装载机 Mine loading shovel loaders |
| 07/04/2012 | CN102536300A Mining dust catcher |
| 07/04/2012 | CN102536299A Dustproof forestope |
| 07/04/2012 | CN102527567A Ultrasonic atomization dust-settling nozzle for underground coal mine |
| 07/04/2012 | CN101915113B Mine nitrogen water mist generating device |
| 07/04/2012 | CN101798937B Mechanical blasting sprayer |
| 06/28/2012 | WO2011113408A3 Method for minimizing nitrogen oxide gases in underground mining and tunnel construction |
| 06/27/2012 | CN102518463A Recycling type smoke control method of tunnel |
| 06/27/2012 | CN102518412A Method for mining coal and gas by hydraulic jet grouting washout |
| 06/27/2012 | CN102517041A Flame retardant containing bamboo powder and flame-retardant fiber for mine |
| 06/27/2012 | CN102513232A Dedusting spray head |
| 06/27/2012 | CN102071972B Method for discriminating underground coal combustion center |
| 06/27/2012 | CN101943017B Air distributing device and coal mine comprehensive digging working surface air distributing and dust reducing system |
| 06/20/2012 | EP2464711A1 Steeping liquor used as a means of controlling the risk of fire and explosion of organic extractive materials |
| 06/20/2012 | CN102505957A Control sensor |
| 06/20/2012 | CN102505956A Optically controlled sensor |
| 06/20/2012 | CN102505955A Multifunctional urban traffic tunnel fire disaster fume diffusion model device |
| 06/20/2012 | CN102505953A Air purifier for removing harmful gas and dust in long tunnel |
| 06/20/2012 | CN102505952A Method for clearing harmful gas and dust in long tunnel |