| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 10/29/2008 | CN101293233A Automatic spraying and dust-preventing method, and dust-preventing apparatus |
| 10/29/2008 | CN100429380C Three-phase foam preparing system for preventing coal self-ignition |
| 10/22/2008 | CN201137503Y Unpowered dust-removing device |
| 10/22/2008 | CN201137502Y Mining laneway closing and transverse crossing device |
| 10/09/2008 | DE102007016680A1 Filter system for exhaust air from subways, has filter elements inserted into exhaust air duct for cleaning of suction air flow of fine dust produced by fan, where filter elements are automatically cleaned by quick action valve |
| 10/08/2008 | CN201129187Y Automatic spraying device |
| 10/08/2008 | CN201129186Y Large lane automatic spraying device |
| 09/18/2008 | WO2007124482A3 Underground irrigation system |
| 09/17/2008 | CN101265811A Preparation method for multiphase gel foam for controlling coal autogeneous combustion |
| 09/17/2008 | CN101265810A Inhibiting gel for harnessing coal seam fire hazard |
| 09/17/2008 | CN101265809A Mine down-hole full-automatic dust-rinsing sprinkler truck |
| 09/10/2008 | CN101260811A Deep well high pressure fine water mist dust removal method and dust removal device |
| 09/03/2008 | CN201110189Y Suspension type water bag frame |
| 08/27/2008 | CN101251027A Spin type atomizer |
| 08/27/2008 | CN101251026A Wind power ganged regulating atomizer |
| 08/27/2008 | CN101251025A Coal mine down-hole foam dedusting system |
| 08/27/2008 | CN101251024A Foam generator for coal mine dedusting |
| 08/21/2008 | US20080197690 Highwall Mining System, Conveyor Segment And Method For Providing Such A Mining System |
| 08/21/2008 | DE102004058983B4 Brandgasanalysesystem für den Einsatz bei Bränden in Steinkohlegruben Fire gas analysis system for use in fires in coal mines |
| 08/20/2008 | CN201101931Y Automatic atomizing and smoke eliminating and dust collecting device |
| 08/13/2008 | CN201100136Y Water curtain dust eliminator |
| 08/06/2008 | CN201095989Y Downhole cart water-rinsing tank |
| 08/06/2008 | CN100408807C Assembly for fixing drill on a driven mechanism |
| 07/30/2008 | CN201092865Y Coal seam water injection hole packer which hydraulic pressure can be regulated and controlled randomly |
| 07/30/2008 | CN201092864Y Inclined shaft-hoisting self-cleaning device |
| 07/23/2008 | CN201090238Y Blasting high pressure remote automatism atomizer |
| 07/23/2008 | CN201090237Y Glass reinforced plastics wet-type dust collector for mining |
| 07/23/2008 | CN201090236Y Supercharging type atomizing dust suppression device |
| 07/23/2008 | CN201090235Y Watering cart for mining |
| 07/23/2008 | CN101225748A Composite covering agent for restraining oxidized self-ignition of vulcanizing ore |
| 07/16/2008 | CN101220745A Method for using poly-sodium acrylate as anti-caking agent of vulcanizing ore |
| 07/02/2008 | CN201080830Y Water injection device |
| 06/25/2008 | CN201078240Y Unmanned water filling device of flame proof water bag |
| 06/25/2008 | CN201078239Y Wind pressure water straining magnetizing dustfall apparatus |
| 06/25/2008 | CN101205808A Lower seal board of patching machine |
| 06/18/2008 | CN201074526Y Mobile anti-extinguishment grouting device |
| 06/18/2008 | CN201074525Y Dust collector between racks |
| 06/18/2008 | CN201074524Y Dust collector for air drilling in tunnel |
| 06/18/2008 | CN201074523Y Safety air bag for plugging mobile coal mine fully-mechanized mining working surface cap |
| 06/11/2008 | CN201071734Y Coal seam water injection hole sealing device |
| 06/04/2008 | CN201068805Y Device for suppressing coal and gas bursting |
| 06/04/2008 | CN101191420A Technique for preventing coal and gas burst accident enlarging |
| 05/28/2008 | CN201066635Y Integrated explosion separation switch |
| 05/28/2008 | CN201066634Y Explosion separation switch shell |
| 05/28/2008 | CN201065769Y Mine dust on-line monitoring and controlling system |
| 05/21/2008 | CN201062525Y Four-post supporting secured low-roof coal bracket |
| 05/21/2008 | CN101182782A Coal mine down-hole dynamoelectric sprinkling dust proof vehicle |
| 05/14/2008 | CN201059203Y Environment-friendly type big tunnel watering dust extinguishing vehicle |
| 05/14/2008 | CN100387806C Gas preventing and control navigation method for coal mine production mine |
| 05/14/2008 | CN100387805C Automatic quantification charging technology and apparatus using dytory method to prevent spontaneous combustion of coal |
| 05/07/2008 | CN201055819Y Rotatable atomizer |
| 04/30/2008 | CN101169041A Digging laneway aerating and dust removing system arrangement method |
| 04/30/2008 | CN101169040A Mine working face cooling system |
| 04/23/2008 | CN201050382Y Portable friction type hole packer for water injection gas suction |
| 04/23/2008 | CN201050381Y Spurting-proof device for safe tunneling of protrusive coal bed |
| 04/17/2008 | DE10262177B4 Verfahren zur Absaugung von Gasen im Brandfall A method for extraction of gases in case of fire |
| 04/16/2008 | CN101161992A Ore seam injection method during mining process |
| 04/16/2008 | CN101161991A Low-oxygen safe mining process |
| 04/09/2008 | CN201045303Y Nebulization dustfall device |
| 04/09/2008 | CN201045297Y Continuous miner gas loaded nebulization dust removing system |
| 04/02/2008 | CN100378293C Drilled hole fixing device |
| 03/26/2008 | CN201041049Y Coal mine guniting, gun-firing interlinked atomizer |
| 03/26/2008 | CN201041047Y Spraying integral valve for fully-mechanized mining and synthetical support moving and coal caving |
| 03/19/2008 | CN201037426Y Support coal discharge injection negative pressure atomization dust remover |
| 03/19/2008 | CN101144388A Polyvinyl alcohol environmental protection macromolecule retardant for preventing coal spontaneous combustion |
| 03/19/2008 | CN101144387A Environment protection chemical retardant for preventing coal spontaneous combustion |
| 03/05/2008 | CN201031144Y Coal mine down-hole mobile carbon molecular sieve nitrogen preparing equipment |
| 02/27/2008 | CN201027545Y Emulsification pump parallel arrangement especially used for down-hole mine coal |
| 02/20/2008 | CN201025064Y Efficient dust removal and explosion preventer |
| 02/20/2008 | CN201025063Y Humid dust remover for mine |
| 02/20/2008 | CN201025062Y Remote sprayer |
| 02/20/2008 | CN201025061Y Tank car spraying device |
| 02/20/2008 | CN201025050Y Hydraulic pressure supporter for mine with spraying machine |
| 02/20/2008 | CN201024897Y A quick drill pole aiguille for drilling hole of bottom plate |
| 02/19/2008 | US7332007 Dusting device with multiple stream nozzles |
| 02/13/2008 | CN101122237A Inter-frame dust-cleaning equipment |
| 02/13/2008 | CN101122236A Gas coal separation apparatus employed in projected coalbed burst-proof system for safe drilling |
| 01/30/2008 | CN201013401Y Wind pressure water screen dust removal device |
| 01/30/2008 | CN201012344Y Watering devices |
| 01/16/2008 | EP1877649A1 Construction element and method for its manufacture |
| 01/16/2008 | CN201007219Y High power inhibition foam-making apparatus for preventing and controlling coal spontaneous combustion |
| 01/16/2008 | CN201006509Y Dust removing showerhead |
| 01/16/2008 | CN101105140A Mine dust on-line monitoring and controlling system |
| 01/16/2008 | CN101105138A Method for suppressing coal and gas outburst |
| 01/16/2008 | CN101105136A Four column protected type hydraulic prop frame for low position blasting down the roof coal |
| 01/16/2008 | CN100362209C Coal mine gas explosion burst treatment method and its matched gas dissolving and elimineting agent |
| 01/10/2008 | WO2008004874A1 Method for coating a matrix with fire, water and frost-proof barrier layer as well as layer prepared by the method |
| 01/09/2008 | CN201003412Y High pressure impulse water hammer water injection device for coal bed |
| 01/02/2008 | CN200998699Y Chamber type electric sprinkling station |
| 01/02/2008 | CN101099025A Arrangement for sucking dust |
| 12/26/2007 | CN101092879A Method for injecting retarder to coal body |
| 12/19/2007 | CN200993026Y Coal mine underground explosion-suppression water trough level fully-automatic supply device |
| 12/19/2007 | CN101089367A Gas dust integral preventing system for coal mine |
| 12/12/2007 | CN200989180Y Hole sealing device |
| 12/05/2007 | CN101082282A Movable coal mine fully-mechanized mining working faces end head plugging air bag for safety |
| 11/21/2007 | CN200978681Y Tunnel spraying dust-proof device |
| 11/21/2007 | CN101074607A Chemical method for preventing gas disaster and its special apparatus |
| 11/07/2007 | CN200971788Y Mine explosion-proof multifunction spray control device |
| 11/07/2007 | CN200971787Y Cold-air preparation device of mine working face temp. lowering system |
| 10/31/2007 | CN200968221Y Wet-type spiral string dust-removal fan |