| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 10/31/2007 | CN200968179Y Dust proof water injection type helical reclaiming anchor rod and drill stem Injector |
| 10/24/2007 | CN200964869Y All-section spraying curtain device |
| 10/24/2007 | CN101059078A Mine dust collection method and its dedicated apparatus |
| 10/17/2007 | CN200961489Y Pneumatic impact wave automatic water-sprinkling device |
| 10/17/2007 | CN200961488Y Automatic atomization device for preventing gas explosive for mining |
| 10/17/2007 | CN200961487Y Gas-exhausting drilling dust-removing device |
| 10/17/2007 | CN200961486Y Sprinkling and purifying and safety device |
| 10/17/2007 | CN200961482Y Fully-excavated face wind curtain dust-collecting dust-removing system |
| 10/17/2007 | CN101054904A Method for preventing and treating coal mine gas and coal dust explosion |
| 09/26/2007 | CN200952406Y Blocking frame ventilating and dust removing equipment |
| 09/20/2007 | WO2007104278A1 Multichamber extinguishing agent container |
| 09/20/2007 | DE102006041566A1 Mehrkammer-Löschmittelbehälter Multi-chamber extinguishing agent container |
| 09/19/2007 | CN200949476Y Gas exhausting drilling deslagging duster removing apparatus |
| 09/19/2007 | CN200949474Y Multifunctional automatic sprayer unit of thin coal seam blast mining face |
| 09/19/2007 | CN100338335C Mine gas anti-knock additive and its preparing method |
| 09/12/2007 | CN200946513Y Wet type drilling water-injector for mining |
| 09/12/2007 | CN101035728A Dust suppression method and apparatus |
| 09/12/2007 | CN100337012C Process of preparing thickened grout for preventing coal from spontaneous combustion and equipment therefor |
| 09/05/2007 | CN200943507Y Automatic sprayer unit of stripping machine |
| 08/29/2007 | CN200940497Y Uniform pressure type tunnel purifying and dust-proof water curtain device |
| 08/22/2007 | CN101021160A High power inhibition foam for preventing and controlling coal self-ignition and generating device thereof |
| 08/15/2007 | CN2934581Y Full-automatic assembled dust-precipitating device for fully-mechanized coal driving workface |
| 08/15/2007 | CN2934580Y Dust-removing device of fully-mechanized coal driving workface |
| 08/14/2007 | CA2292117C Mine stopping, method of constructing same and panels thereof |
| 08/09/2007 | DE10209871B4 Verfahren und Anordnung zur Reduzierung der Rauch- und Schadstoffbelastung Method and apparatus for reducing smoke and pollution |
| 08/08/2007 | CN101014745A Composition for fixing a heap of powdery and/or granulated particles |
| 08/08/2007 | CN101014414A Electric precipitator and electric precipitation system |
| 07/25/2007 | EP1809861A1 A tunnel cover for a tunnel for controlled ventilation of gas |
| 07/19/2007 | WO2007080432A1 Method and device for gas cleaning from dust |
| 07/18/2007 | EP1807572A1 Composition for fixing a heap of powdery and/or granulated particles |
| 07/18/2007 | EP1807332A2 Dust suppression method and apparatus |
| 07/18/2007 | CN2924016Y 矿山轨道自动喷雾器 Mine orbit automatic sprayer |
| 07/18/2007 | CN100999996A Chemical fire retartant for preventing controlling coil mineral well coal self-igniting |
| 07/18/2007 | CN100999995A Emergent rescuing system for mining well fire, gas explosion disaster |
| 07/11/2007 | CN2921292Y Comprehesive coal mining frame spraying device |
| 07/11/2007 | CN2921291Y Dust-setting pot |
| 07/11/2007 | CN2921290Y Moving air curtain type tunnel smoke-dispelling and dust removing device |
| 07/11/2007 | CN2921289Y Mine gas flame-proof sealing gasket |
| 07/04/2007 | CN2918740Y Infrared operated comprehensive protection observe and control device |
| 07/04/2007 | CN2918739Y Forecasting coal drift projecting device with continuous drilling flow method |
| 07/04/2007 | CN1991129A Method and device for flexible-sealed back expansion grubbing type safety mining after stick-plugging |
| 06/20/2007 | CN2913611Y Full-automatic support spraying unit for fully-mechanized mining working plane |
| 06/13/2007 | CN2911188Y Mine wetting orifice duster |
| 06/13/2007 | CN1978866A Biological control method and apparatus for reducing coal-mine gas content |
| 06/06/2007 | DE102005057693A1 Press water application device for use in underground mining, has sprinkling valve block provided with connection for water pipe, and arranged as unit at plate extension frame, where unit is separated from hydraulic valve block |
| 06/06/2007 | CN2908788Y Vortex dust controller |
| 06/06/2007 | CN1975114A Coal-seam high-pressure pulsating water hammer water-infusion method and apparatus thereof |
| 06/06/2007 | CN1975113A Coal mine pressed pulsed infusion technology |
| 06/06/2007 | CN1975110A Arrangement for the admission of pressurized water to spray systems |
| 05/30/2007 | CN2906069Y Gas-outburst anti-backwind device |
| 05/30/2007 | CN1970993A Micro-computerized spray dust-arrest device |
| 05/23/2007 | CN2903389Y Auto spraying apparatus for full section of hydraulic support |
| 05/23/2007 | CN2903388Y Foam spraying controlling valve set special for tunnel |
| 05/16/2007 | CN2900794Y Pneumatic dust sucking device for mining vertical shaft umbrella drill |
| 05/16/2007 | CN1963153A Downhole crushed coal leak-stopping fire-proofing agent for use in coal mine |
| 04/25/2007 | CN1951571A Electric dust collector |
| 04/18/2007 | CN2890344Y Automatic dust-settling device of air tube |
| 04/18/2007 | CN2890343Y Multifunctional automatic spraying unit |
| 04/18/2007 | CN1948523A Method of treating sulfide ore spontaneous combustion using bacteria leaching out method |
| 04/11/2007 | CN1944814A Linear regulating water supply system with ground control and underground pressure measurement for coal mine |
| 03/21/2007 | CN2881103Y Wind guide spray dust prevention device |
| 03/21/2007 | CN2881102Y Combined device for explosion-proof, dust proof and use of coal mine gas |
| 03/15/2007 | WO2007028427A1 Tunnel construction |
| 03/07/2007 | CN2876333Y Under well air purification car |
| 02/22/2007 | US20070039744 Tunnel fire protection system |
| 02/21/2007 | CN1916369A New mobile type dust collector |
| 02/15/2007 | DE10136096B4 Vorrichtung und Verfahren zum Erfassen und Absaugen von Luft und anderen Gasen Apparatus and method for detecting and extracting air and other gases |
| 02/14/2007 | CN2869328Y Mining wet dust-collecting device |
| 02/14/2007 | CN1912345A Underground air purification vehicle |
| 02/08/2007 | DE202006017508U1 Explosionsdruckentlastungseinrichtung Explosion relief device |
| 02/07/2007 | CN2866824Y Flameproof water tank watering device |
| 02/06/2007 | US7172256 Rotary cutting bit having spark suppression sleeve |
| 01/31/2007 | CN2864095Y Automatic spraying device for mine transportation vehicle |
| 01/31/2007 | CN2864094Y Multifunctional automatic dustfall element |
| 01/24/2007 | CN2861492Y Mine used automatic spraying and dust-reducing device |
| 01/24/2007 | CN2861485Y Dust pelletizing system for wind curtain dust collection fan in comprehensive digging working face |
| 01/24/2007 | CN1900487A Anti-risk and rescue technology for mine |
| 01/18/2007 | WO2006053348B1 Fire and explosion suppression |
| 01/18/2007 | DE102005032901A1 Explosion damping curtain for civil engineering has film container filled with extinguishant and wrapped around support beam with fixing strip |
| 01/17/2007 | CN1295423C High-pressure gas-flow jet spraying and dust-reducing apparatus |
| 01/03/2007 | CN2854090Y Automatic watering car for inclined drifts of coal mine |
| 01/03/2007 | CN2854089Y Automatic balance explosion-proof frame |
| 01/03/2007 | CN1889998A Toilet system attached a multi-purpose hand held water sprayer |
| 01/03/2007 | CN1888396A Moving air curtain type smoke and dust removing method and apparatus thereof |
| 01/03/2007 | CN1888390A High gas yoke thick coal seam quasi-large-scale mining and high comprehensive mining low-level caving technique |
| 12/27/2006 | CN2851580Y Coal seam water infusion under pressure and blasting spray system |
| 12/27/2006 | CN1884427A Highly effective fire-proof dust-suppressing material production process and method |
| 12/27/2006 | CN1884426A Highly effective fire-proof dust-suppressing material and its synthesis method |
| 12/20/2006 | CN2849173Y Expansion cage guide of annular pipe vertical well |
| 11/29/2006 | EP1726777A1 System and method for suppressing dust and odors |
| 11/29/2006 | CN2841966Y Three-phase foam preparing apparatus for preventing and treating coal self-ignition |
| 11/29/2006 | CN1869403A Safety coal mining and gas production method with separated air way |
| 11/15/2006 | CN1861986A Method of preventing producing firing resource in coal mine tunnel and apparatus of realizing said method thereof |
| 11/02/2006 | WO2006115415A1 Construction element and method for its manufacture |
| 11/01/2006 | CN2833114Y Elastic wire box for wet type screw dust-removing blower fan for mining |
| 10/26/2006 | WO2006041581A3 Dust suppression method and apparatus |
| 10/18/2006 | EP1711232A2 Multi-purpose hand held sprayer having a vertical shut-off valve |
| 10/18/2006 | CN2828317Y Dewatering device of wet spiral dust-cleaning fan for coal mine |
| 10/18/2006 | CN2828313Y Coal mine tunnelling machine |
| 10/18/2006 | CN1847620A Continuous drilling flowrate process capable of predicting coal draft outburst and its apparatus |