| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 01/15/2014 | CN203394570U Mechanical timing automatic spray dust settling device |
| 01/15/2014 | CN203394569U Underground coal mine dust-proof water curtain |
| 01/15/2014 | CN203394568U Spraying assembly and spraying system for roadway |
| 01/15/2014 | CN203394567U Roadway omnibearing cross section multi-head two-way spraying device |
| 01/15/2014 | CN203394566U Auxiliary cooling system of nitrogen filling machine |
| 01/15/2014 | CN203394565U Fireproof injection pipe for coal mine |
| 01/15/2014 | CN203394564U Electromagnetic type anti-explosion opening device |
| 01/15/2014 | CN103510976A Jet-flow negative pressure mist-spray dust suppression device |
| 01/08/2014 | CN203383849U Underground microwave detector of coal mine and spray dust suppression system |
| 01/08/2014 | CN203383848U Hydraulic hole packer for coal seam water injection |
| 01/08/2014 | CN203383847U Scaling-throttling accelerating type pneumatic dust extraction device |
| 01/08/2014 | CN203383846U Device for preparing aerosol for prevention and control of coal spontaneous combustion |
| 01/08/2014 | CN103498693A Negative pressure atomization dust reduction device between supports |
| 01/08/2014 | CN102182497B Foam preparation device for preventing and extinguishing coal mine fire |
| 01/08/2014 | CN102182496B Foam generator for preventing and extinguishing fire in coal mine |
| 01/01/2014 | CN203374302U Liftable spraying device |
| 01/01/2014 | CN203374301U Mine underground mechanical wind-water expanding dust removal fan |
| 01/01/2014 | CN203374300U Spraying and aspirating system for coal mines |
| 01/01/2014 | CN203374299U Mine-used liquid-inert-gas fire preventing and extinguishing system |
| 01/01/2014 | CN203374298U Efficient heat-exchange air cooler for mine |
| 01/01/2014 | CN103485816A Mine dust catching device |
| 01/01/2014 | CN102518463B Recycling type smoke control method of tunnel |
| 01/01/2014 | CN102392674B Compounded latex retardant for preventing coal spontaneous combustion and preparation method thereof |
| 12/25/2013 | CN203362442U 无动力液体自动添加泵 No power to automatically add the liquid pump |
| 12/25/2013 | CN203362214U Dustproof gauze curtain |
| 12/25/2013 | CN203362213U Air pressing type explosive-proof opening device |
| 12/25/2013 | CN203362212U Pressurization spring explosion-proof opening device |
| 12/25/2013 | CN103470296A Method for underground coal mine dust removal by aqueous alkali |
| 12/25/2013 | CN103470295A Mine extinguishment and explosion suppression system |
| 12/25/2013 | CN103470294A Mine dustfall agent automatic adding device |
| 12/25/2013 | CN103469715A Design method of inflaming retarding scheme of tunnel bituminous pavement structure |
| 12/25/2013 | CN103463753A Urban road, highway and tunnel integrated miniature fire station for supplying powder by utilizing clean energies |
| 12/25/2013 | CN102226411B Foam dust-settling device for negative pressure-type mines |
| 12/25/2013 | CN102220876B Automatic spraying valve |
| 12/18/2013 | CN203348107U Horizontal type spiral draught fan |
| 12/18/2013 | CN203347836U Scraper conveyor box type double middle plate gangue backfill middle trough |
| 12/18/2013 | CN203347832U Automatic water spraying dust settling device for mine |
| 12/18/2013 | CN203347831U Fully-mechanized coal mining face top coal caving dust suppression system |
| 12/18/2013 | CN203347830U Roadway water film dust removing device |
| 12/18/2013 | CN203347829U Efficient protective screen |
| 12/18/2013 | CN203347828U Multifunctional equipment for comprehensively managing coal gangue dumps |
| 12/18/2013 | CN203347827U Explosive-proof heavy hammer opening device |
| 12/18/2013 | CN103452580A Double-barrel anti-backfire device |
| 12/18/2013 | CN103452578A Wind-water mixed duel-purpose adjustable type automatic transfer spraying device |
| 12/18/2013 | CN103452577A Multifunctional energy-saving buffering supercharger |
| 12/18/2013 | CN103452576A Air purification method of mine centrifugal dust-removing fan system |
| 12/11/2013 | CN203335121U Bidirectional-trigger automatic explosion suppression device for underground coal mine |
| 12/11/2013 | CN203335120U Mine underground digging blasting non-electric control spraying system |
| 12/11/2013 | CN203335119U Novel wind-water linkage full-section dustproof atomizer |
| 12/11/2013 | CN203335118U Mine watering cart pipeline bolt decompression valve device |
| 12/11/2013 | CN203335117U Mining foam dust removal device |
| 12/11/2013 | CN203335116U Driving face dust removing equipment |
| 12/11/2013 | CN203335115U Mine dust removal pipeline automatic drainage adjustment valve |
| 12/11/2013 | CN203335114U Dust prevention and automatic washing integrated device for mine excavation face |
| 12/11/2013 | CN203335113U Dust hood for dust removal in underground coal time drilling machine operations |
| 12/11/2013 | CN203335080U Excavation roadway fire extinguisher |
| 12/11/2013 | CN203334999U Atomization generator for gallery drilling |
| 12/11/2013 | CN103437806A Preparation method and using method of coal mine gas dissolving agent |
| 12/11/2013 | CN103437802A Solution composition method for removing gas with liquid nitrogen and using method |
| 12/11/2013 | CN103437801A Gas eliminating agent preparing method and use method |
| 12/11/2013 | CN103437800A Gas instant eliminating liquid preparing method and use method |
| 12/11/2013 | CN103432803A Sewage circulating treating system and machine for coal mine |
| 12/11/2013 | CN102493829B Phase-change material fireproof composite board for mine |
| 12/05/2013 | WO2013178888A1 Alignates used as a means for controlling risk of fire and explosion of extractive organic materials |
| 12/05/2013 | WO2012136177A8 Wet scrubber having a compact demister that requires reduced energy demand |
| 12/04/2013 | CN203321570U Automatic control device for spreading and retracting of framework air duct |
| 12/04/2013 | CN203321569U Well bottom rock debris clearing device |
| 12/04/2013 | CN203321568U Roadway spraying and aspirating system |
| 12/04/2013 | CN203321567U Dust removal air curtain for coal mine laneway |
| 12/04/2013 | CN203321566U Absorption dust catch curtain |
| 12/04/2013 | CN203321519U Full-automatic belt lane wind current isolation device |
| 12/04/2013 | CN103422881A Intelligent mining atomization dust settling device |
| 12/04/2013 | CN103422880A Stone drift fully-mechanized excavating surface dust removing system |
| 12/04/2013 | CN103422879A Method for putting out coal dust burning |
| 12/04/2013 | CN103422877A Underground coal mine ventilation and dust removal safety system |
| 12/04/2013 | CN103422876A Environment-friendly coal mine underground ventilation and dedusting safety system |
| 12/04/2013 | CN102562124B Underground liquid nitrogen direct injection type fire preventing and extinguishing device |
| 11/27/2013 | CN203308505U Multifunctional medicine dust remover |
| 11/27/2013 | CN203308504U Mining centrifugal type atomizing and dust-settling device |
| 11/27/2013 | CN203308503U Anti-backflow air pressure sprayer |
| 11/27/2013 | CN203308502U Air-water mixed automatic spraying device |
| 11/27/2013 | CN203308501U Coal mine fully mechanized working face dustproof spraying device |
| 11/27/2013 | CN203308500U Coal mine wet-type vibrating string curtain dust removal fan |
| 11/27/2013 | CN203308499U Local fan atomization dust suppression device |
| 11/27/2013 | CN203308498U Energy-saving fire fighting system for tunnel of cold region |
| 11/27/2013 | CN203308497U Coal mine underground combustion isolation and explosion suppression device |
| 11/27/2013 | CN203308496U Air-reversing fire protection device for mine belt transport lane |
| 11/27/2013 | CN203308465U Mechanical arm for coal mine |
| 11/27/2013 | CN103410556A Gallery purifier for coal mine safety production |
| 11/27/2013 | CN103410555A Gallery dust remover for coal mine safety production |
| 11/27/2013 | CN103410554A Reinforced dedusting device for coal min safety |
| 11/27/2013 | CN103410553A Dedusting device for coal mine safety |
| 11/27/2013 | CN103410548A Hydraulic support and water spraying valve thereof |
| 11/20/2013 | CN203296801U Air-water mist spraying and dust suppression device |
| 11/20/2013 | CN203296800U Traction-type mining dust scrubbing machine |
| 11/20/2013 | CN203296799U Whole-sealing-type dust removing and collecting integrated device used in drilling and deslagging achieved by wind in mine |
| 11/20/2013 | CN203296798U Automatic water spraying and dustfall device for mine |
| 11/20/2013 | CN203296797U Explosion suppression device for coal mine |
| 11/20/2013 | CN103397899A Excavation working face wind distributor |
| 11/20/2013 | CN103397898A Scaling, throttling and speed-increasing type pneumatic dust removal device |