| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 11/20/2013 | CN102337103B Penetrant for coal-bed flooding |
| 11/20/2013 | CN102296978B Coal-face flooding hole packer |
| 11/20/2013 | CN102128047B Gas-slag separation and recovering system for drilling construction |
| 11/13/2013 | CN203285478U Roadway dedusting and purifying system of fully mechanized excavation face |
| 11/13/2013 | CN203285477U Combined underground coal mine dust falling device |
| 11/13/2013 | CN203285476U Spraying device for tracking dust source of coalcutter |
| 11/13/2013 | CN203285475U Unpowered watering cart for coal mine tunnel |
| 11/13/2013 | CN203285474U Water mist spray fire resisting rolling shutter device fire extinguishing system for tunnels |
| 11/13/2013 | CN203285473U Mining automatic fire fighting ground grout preparing system |
| 11/13/2013 | CN103388486A Coal mine spraying material with excellent flame retardant property for sealing ventilation and preventing and extinguishing fire and preparation method thereof |
| 11/13/2013 | CN103388485A Spraying-type fire preventing and extinguishing material for coal mine and preparation method thereof |
| 11/13/2013 | CN103388484A No-air-source foam plug dust removing system applied to underground coal mine |
| 11/13/2013 | CN103388483A Coal mine underground movable multi-component foam fire extinguishing system |
| 11/13/2013 | CN102213104B Reversing operation torsion transmission shaft and multifunctional reversing spray operation valve bank |
| 11/07/2013 | WO2013054106A3 Organomineral solid and foamed material |
| 11/06/2013 | CN203272261U Mining wet dust removal fan |
| 11/06/2013 | CN203271798U Anti-corrosion spraying seat |
| 11/06/2013 | CN203271797U Full-automatic networked fire-extinguishing device for tunnel |
| 11/06/2013 | CN203271796U Auxiliary dust collecting system of coal mine tunnel |
| 11/06/2013 | CN203271783U Hinged spray type front canopy |
| 11/06/2013 | CN203264105U Dry powder extinguishing agent relief valve structure for dry powder extinguishing agent storage tank of explosion suppression device |
| 11/06/2013 | CN102352767B Sound control automatic spray dust settling device |
| 11/06/2013 | CN102352766B Timed automatic spraying and dust-settling device |
| 10/31/2013 | WO2013161477A1 Charged water particle spray device |
| 10/31/2013 | WO2013161476A1 Charged water particle spray device |
| 10/30/2013 | CN203257454U Coal flow type automatic mist spraying device |
| 10/30/2013 | CN203257453U Spraying supercharger |
| 10/30/2013 | CN203257452U Automatic explosion suppression water injection device |
| 10/30/2013 | CN203257451U Goaf fireproof device |
| 10/30/2013 | CN203257450U Large-area automatic-control pressure-equalizing fire preventing and extinguishing system |
| 10/30/2013 | CN203257449U Hydraulic drill carriage shock-proof top plate |
| 10/30/2013 | CN102562125B Ground direct injection type liquid nitrogen fire preventing and extinguishing system |
| 10/30/2013 | CN102517041B Flame retardant containing bamboo powder and flame-retardant fiber for mine |
| 10/23/2013 | CN203248199U Mine adit fire separation device |
| 10/23/2013 | CN203248184U Forepoling bar and spray and aspirating combination device |
| 10/23/2013 | CN203248183U High-temperature deep well down-hole cooling and dustproof composite water supply system |
| 10/23/2013 | CN103362832A Spraying environment-friendly energy-saving anti-explosion fan based on shaft sump water source |
| 10/23/2013 | CN103362536A Preparation method of pulverized fuel ash containing inhibition slurry for controlling fire in coal field |
| 10/23/2013 | CN103362535A Atomizing device |
| 10/23/2013 | CN103362534A Preparation system for nitrogen inhibition water mist for controlling mine fire and fire prevention and extinguishing method thereof |
| 10/23/2013 | CN103362533A Atomizing and spraying device of conical air flow field |
| 10/23/2013 | CN103362532A Method for preparing active-carbon-containing colloid gas foam for preventing gas emission in gob |
| 10/23/2013 | CN103362531A Grouting device and system among working face frames |
| 10/23/2013 | CN103361035A Compound foaming agent used for depositing dust and preparation method thereof |
| 10/23/2013 | CN102251791B Folded ventilation duct assembly |
| 10/23/2013 | CN101864984B Horizontal turbulence ball padding dust catcher for mine |
| 10/17/2013 | WO2013154379A1 Interior finishing method for tunnel and structure |
| 10/16/2013 | CN203239936U Electrohydraulic-control automatic water spraying valve |
| 10/16/2013 | CN203239382U Mining air dust-removing equipment |
| 10/16/2013 | CN203235452U Mining shock excitation screen type foam generator |
| 10/16/2013 | CN103352715A Spraying fire extinguishing equipment prepared through gel, manufacturing method thereof and gel spraying method |
| 10/16/2013 | CN102410039B Self-pressure type quick start continuous water spray explosion-prevention and explosion suppression system |
| 10/10/2013 | US20130266408 On board rock duster scoop bucket |
| 10/09/2013 | CN203230454U Dust-removing chamber for removing coal dust on working surface during tunnel machine group tunneling and coal cutting |
| 10/09/2013 | CN103343697A 矿井防尘装置 Mine dust device |
| 10/02/2013 | CN203223244U Purification spraying integrated control table |
| 10/02/2013 | CN203223243U Automatic lifting spraying device |
| 09/26/2013 | DE10131852B4 Trockenfilter mit automatischem Austrag und hoher Abscheideleistung Dry filter with automatic discharge and high separation |
| 09/25/2013 | CN203214092U Mining foam dust falling device |
| 09/25/2013 | CN103321668A Automatic control device for extending and retracting framework air cylinder |
| 09/25/2013 | CN102796911B Porous foam Fe-Ni metal explosion suppression material and application thereof |
| 09/25/2013 | CN102296979B Dedusting and dehydrating process of deep condensation to gas by utilizing natural cold source |
| 09/25/2013 | CN102228813B Apparatus for automatically adding foaming agent |
| 09/18/2013 | CN203201587U Plastic polymerization particle air purification mist spray equipment |
| 09/18/2013 | CN203201586U Nitrogen injection device |
| 09/18/2013 | CN203201527U Deep drilling pressurizing hole sealing device |
| 09/18/2013 | CN103306711A Composite stopping agent preventing pulverized coal from spontaneous combustion |
| 09/18/2013 | CN103306710A Compound stopping agent for preventing pulverized coal from spontaneous combustion |
| 09/18/2013 | CN103306709A Energy-saving firefighting system for tunnels in cold regions |
| 09/18/2013 | CN103306708A Tunnel energy-saving and firefighting system for cold region |
| 09/18/2013 | CN103306707A Automatically unpowered liquid adding pump |
| 09/18/2013 | CN103306706A Device and process for preparing aerosol for preventing coal from spontaneous combustion |
| 09/18/2013 | CN103306701A Automatic control pressure-equalizing fire preventing and extinguishing system in large area |
| 09/18/2013 | CN103306621A Atomizing generator for gallery drilling |
| 09/18/2013 | CN103305095A Tunnel-dedicated double-component aqueous fireproof coating and construction method thereof |
| 09/11/2013 | CN203189060U Ground material collecting conveyor capable of smoke abatement and dust removal |
| 09/11/2013 | CN203189057U Mine pneumatic wet-type orifice dedusting device |
| 09/11/2013 | CN203189056U Automatic water feeding device for explosion suppression water bags |
| 09/11/2013 | CN203188260U Multifunction anti-explosion scraper |
| 09/11/2013 | CN203184128U Spraying head for underground spraying and dust falling |
| 09/11/2013 | CN103291350A Coal production purifier |
| 09/11/2013 | CN103291349A Mine under-shaft automatic explosive-suspension device triggered in two directions |
| 09/11/2013 | CN103291348A Fully mechanized coal mining face dust overrunning automatic dust suppression method |
| 09/11/2013 | CN103291308A Boom-type roadheader for tunnel construction and tunnel construction method |
| 09/11/2013 | CN102102497B Blowout prevention and dust prevention device |
| 09/04/2013 | CN203175600U Mechanical type remote mist spraying and dust removing device of full-automatic spray pipe under mine shaft |
| 09/04/2013 | CN203175599U Wind-water linkage spraying dust settling device |
| 09/04/2013 | CN203175598U Face-smooth totally closed spraying device |
| 09/04/2013 | CN203175597U Continuous dust-removing water curtain for mine |
| 09/04/2013 | CN203175594U High-efficiency mine ventilation and shaft waste gas cleaning system |
| 09/04/2013 | CN102352776B Gas buffer explosion-proof door |
| 08/28/2013 | CN203161284U Anti-explosion dust remover |
| 08/28/2013 | CN203161283U Dustproof device for coal face |
| 08/28/2013 | CN203161282U Stone powder diffuser |
| 08/28/2013 | CN203161281U Wet-type centrifugal dust collecting device for mines |
| 08/28/2013 | CN203161280U Dust keeper for driving working face |
| 08/28/2013 | CN203161274U Ventilation control system of electric power tunnel |
| 08/28/2013 | CN103266916A Special water spray fire resisting shutter device for tunnel |
| 08/28/2013 | CN103266912A Dry powder extinguishing agent nozzle structure of explosion suppression device |
| 08/28/2013 | CN103266911A Multifunctional wireless sensor for mineral automatic water spraying and dust falling device |