| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 04/17/2013 | CA2760189A1 System for spraying water to reduce dust while drilling in a mine tunnel |
| 04/10/2013 | CN202866866U Fast powder spraying fire extinguishing device |
| 04/10/2013 | CN202866865U Pedal-typed atomizing switch for raking installing machine |
| 04/10/2013 | CN202866864U Pulp shooting machine dust-clearing system |
| 04/10/2013 | CN202866863U Roadway dirt retention rapid cleaning device |
| 04/10/2013 | CN202866862U 磁感应传感器 Magnetic field sensors |
| 04/10/2013 | CN202866861U Mining detonation latching device |
| 04/10/2013 | CN202866854U Novel air duct for mining |
| 04/10/2013 | CN202866851U Thin coal seam shield-type support |
| 04/10/2013 | CN103032094A Energy-saving self-circulation dust removal device for pulp shooting machine |
| 04/03/2013 | CN202851050U A movable multi-component foam extinguishing system used in underground coal mines |
| 04/03/2013 | CN202851049U Dust falling device for sinking and driving engineering |
| 04/03/2013 | CN202851048U Dust remover for transferring points for roadway conveyor belt |
| 04/03/2013 | CN202851047U Air-flow water curtain device for purification |
| 04/03/2013 | CN202851046U Mining automatic watering dust-fall device |
| 04/03/2013 | CN202851045U Mining roadway heat-insulation fireproof combined wall |
| 04/03/2013 | CN202849988U Vertically-hung dust collector |
| 04/03/2013 | CN202845222U Dedusting nozzle |
| 04/03/2013 | CN202845220U Adjustable foam spraying device for preventing cutting dust |
| 04/03/2013 | CN202844943U Pneumatic jet-type proportional foaming device |
| 04/03/2013 | CN202844745U Emergency self-help device for water purification and dust extraction of mine |
| 04/03/2013 | CN103016043A Inflatable smoke exhaust and dust removal isolating hood for tunnel shaft construction |
| 04/03/2013 | CN103016042A Dust reducing agent adding device for coal mine |
| 04/03/2013 | CN102410036B High-speed mine return-air heat exchanger and application method thereof |
| 04/03/2013 | CN102213105B Mobile self-cleaning dry dust-collecting and ventilating equipment used in tunnel construction |
| 04/03/2013 | CN102174896B Dust remover for drilling holes |
| 03/27/2013 | CN202832627U Spraying dust remover for mine |
| 03/27/2013 | CN202832626U Mining dust-proof net device |
| 03/27/2013 | CN202832625U Mine disaster reducing pipeline system |
| 03/27/2013 | CN102996173A Automatic safety device of mining working surface roadway |
| 03/27/2013 | CN102996167A Full-automatic safety equipment for stope face roadway |
| 03/27/2013 | CN102996156A Simple water feeding device for under-well explosion-separating water bags |
| 03/27/2013 | CN102993615A Fire preventing and extinguishing rubber material, preparation method and use |
| 03/20/2013 | CN202812801U Anti-freezing water conveying device |
| 03/20/2013 | CN202810902U Coal mine pumping and discharging negative pressure dust extraction unit |
| 03/20/2013 | CN202810899U Explosive-proof water barrier |
| 03/20/2013 | CN202810898U Automatic dust pelletizing system for mine |
| 03/20/2013 | CN202810897U Drilling air humidification dust remover |
| 03/20/2013 | CN202810896U Explosion-proof water barrier dedicated water injector |
| 03/20/2013 | CN202810895U Spray hole prevention composite dust collection cover |
| 03/20/2013 | CN202810894U Foam preparation device |
| 03/20/2013 | CN202810889U Small size underground tunnel air supply device |
| 03/20/2013 | CN202810853U Dust collector |
| 03/20/2013 | CN202810722U Anti-dust device for hole drilling |
| 03/20/2013 | CN202803478U Spraying device and mining machine |
| 03/20/2013 | CN202803022U Spraying and aspirating system using anti-freezing water conveying device |
| 03/20/2013 | CN102979564A Stope face roadway full-automatic safety equipment |
| 03/20/2013 | CN102979553A Foot step type spraying switch used for raking machine |
| 03/20/2013 | CN102979552A Device for preventing coal from burning spontaneously and rapidly extinguishing under coal mine and working method thereof |
| 03/20/2013 | CN102979551A Grout sprinkling device and grout sprinkling method on fully mechanized mining face of thick seam |
| 03/20/2013 | CN102979550A Device for improving dust work environment of underground coal mine |
| 03/20/2013 | CN102979549A Self extinguishing room for extinguishing oil and gas wells |
| 03/13/2013 | CN202789757U Contra-rotating dust fan with silencers |
| 03/13/2013 | CN202788917U Light vortex dust controller |
| 03/13/2013 | CN202788916U Mine spraying device with adjustable spraying angles |
| 03/13/2013 | CN202788915U Control device of purified water curtain for underground coal mine |
| 03/13/2013 | CN202788914U Full-automatic waterpower medicate dust removal pump for mining |
| 03/13/2013 | CN202788913U Longitudinal and latitudinal vibration wire filter plate of wet deduster |
| 03/13/2013 | CN202778799U Forward and reverse rotary spraying device for mining |
| 03/13/2013 | CN102966369A Composite stopping agent preventing coal spontaneous combustion based on low-temperature oxidation mechanism of coal |
| 03/13/2013 | CN102966368A Hole packer for coal seam crushing |
| 03/13/2013 | CN102966367A Roadway construction equipment and dust removing device thereof |
| 03/13/2013 | CN102220877B Mine atomizing rotational flow dust collection fan |
| 03/13/2013 | CN102080565B Bracket spraying dust fall device used for fully mechanized caving coal mine working face |
| 03/07/2013 | WO2013029140A1 Concentrated sugar additive as anti-dusting agent |
| 03/06/2013 | CN202768053U Intelligent control air water mist spray dust fall device for coal mine blasting |
| 03/06/2013 | CN202768052U Mining comprehensive dust settling sensor |
| 03/06/2013 | CN202768051U Carrying device capable of improving dust remover angle adjusting range |
| 03/06/2013 | CN202768050U Quick opening device of gas explosion suppressor |
| 03/06/2013 | CN202768022U Tunnel fire proofing structure |
| 03/06/2013 | CN102953748A Foam dust-fall explosion prevention device |
| 03/06/2013 | CN102953694A High-speed hydraulic drill |
| 02/27/2013 | CN202756007U Totally enclosed type dust catching device |
| 02/20/2013 | CN202745918U Interlocking device for small pedestrian air door of pneumatic air door |
| 02/20/2013 | CN202745917U High-pressure water jet negative-pressure induced dust collector |
| 02/20/2013 | CN202745916U Anti-counter flow spray device |
| 02/20/2013 | CN202745915U Steam dust remover |
| 02/20/2013 | CN102937034A Dust-falling spraying device |
| 02/20/2013 | CN102937033A Efficient nitrogen injection and fire extinguishing system for mining |
| 02/13/2013 | CN202738294U Mining flame-proof and intrinsic safe type touch-control automatic control box for spraying and dust depositing device |
| 02/13/2013 | CN202731983U Foam dedusting explosion-proof device |
| 02/13/2013 | CN202731982U Atomizing dust fall system using anti-freeze water delivery device |
| 02/13/2013 | CN202731981U Mining automatic atomizing and aspirating device |
| 02/13/2013 | CN202731980U Dual-control spray valve for hydraulic support |
| 02/13/2013 | CN202731979U Automatic watering and dust suppressing device |
| 02/13/2013 | CN202731978U Automatic dust suppressing device |
| 02/13/2013 | CN202731977U Automatic watering and dust suppressing device |
| 02/13/2013 | CN202731976U Mine gas fire-extinguishing explosion suppression device |
| 02/13/2013 | CN202731975U Isolating dustproof protective device for fully-mechanized excavating of mine |
| 02/13/2013 | CN102926794A Inhibitor spraying device |
| 02/13/2013 | CN102926793A Anti-explosion, fireproof, dust-proof and noise-proof device for mine equipment |
| 02/13/2013 | CN102925107A Dust particle falling agent and application method thereof as well as dust falling method |
| 02/06/2013 | CN202718705U Dedicated nozzle movable frame of mining equipment |
| 02/06/2013 | CN202718704U Mining wet-type rotational flow dedusting ventilator |
| 02/06/2013 | CN202718676U Improved coal mine injection machine |
| 02/06/2013 | CN202715513U Gimbaled nozzle moving frame |
| 02/06/2013 | CN102913271A Dust removal system for spraying machine |
| 01/30/2013 | CN202707130U Pyroelectric light-controlled water-sprinkling dedusting device |
| 01/30/2013 | CN202707129U Cradle dump sprinkling device |
| 01/30/2013 | CN202707128U Radar type automatic sprayer unit |