| Patents for E21F 5 - Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (2,735) |
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| 08/28/2013 | CN103266910A Pressure relief valve device for pipe bolt of mine sprinkler |
| 08/28/2013 | CN103266909A Dust removal method of working face coal dust in tunneling coal cutting of roadway unit and dust removal chamber |
| 08/28/2013 | CN103266908A Dust removing equipment of driving face |
| 08/21/2013 | CN203145994U Automatic dedusting structure for underground mine slipping breaking system |
| 08/21/2013 | CN203145993U Water curtain foam dust removing device |
| 08/21/2013 | CN203145992U Rotating water-jet negative-pressure dust-sucking device |
| 08/21/2013 | CN203145991U Ventilation and dust prevention system for coal tunneling working face |
| 08/21/2013 | CN203145990U Tempering preventing device |
| 08/21/2013 | CN103256071A Coal mine roadway unpowered watering cart |
| 08/21/2013 | CN103256070A Automatic control device for spray dust collection device |
| 08/21/2013 | CN103256069A Automatic water drainage regulating valve of dust-removing pipeline for mine |
| 08/21/2013 | CN103256068A Mine explosion suppression device |
| 08/21/2013 | CN103256067A Gas pumping and releasing pipeline explosion suppression fire retarding device |
| 08/21/2013 | CN103254872A Oily dust preventive composition, preparation method and purpose for preventing dust from flying |
| 08/21/2013 | CN103252038A Dry powder extinguishing agent release valve structure for dry powder extinguishing agent storage tank of explosion suppression device |
| 08/21/2013 | CN101845962B Method and device for reducing dust in air return channel of coal mining working surface |
| 08/15/2013 | WO2013116890A1 Method of assessing dust controls in mining |
| 08/14/2013 | CN203131042U Single-control water spray valve for fully-mechanized coal mining hydraulic support of coal mine |
| 08/14/2013 | CN203130142U Movable dust removing device |
| 08/14/2013 | CN203130141U Mining spray and aspirating system |
| 08/14/2013 | CN203130136U Fire smoke control device for single-exit tunnel under construction |
| 08/14/2013 | CN103244171A Mining wind-water linkage atomizer |
| 08/14/2013 | CN103244170A Integrated device for dust prevention and automatic cleaning of mine face |
| 08/14/2013 | CN103244169A Water spray fire-proof rolling shutter device fire extinguishing system special for tunnels |
| 08/07/2013 | CN203114328U Novel mine underground dustproof fire-extinguishing device |
| 08/07/2013 | CN203114327U Excavating working face anti-protruding drilling ring type orifice dust removal device |
| 08/07/2013 | CN203114326U Underworkings mist spraying bi-directional control device |
| 08/07/2013 | CN203114325U Downhole simple foam generating device |
| 08/07/2013 | CN203108362U Pollution gas purifier device for mines |
| 08/07/2013 | CN103233767A Plastic polymer particle dust-raising-proof spraying nozzle and matched device thereof |
| 08/07/2013 | CN103233766A Plastic polymer particle air purification sprayer and matched device thereof |
| 08/07/2013 | CN103233765A Nitrogen injection device and nitrogen injection method thereof |
| 08/07/2013 | CN103232207A High water content fire extinguishing filling material, preparation method and use method thereof |
| 08/07/2013 | CN102493830B Temperature-controlled liquid nitrogen fire preventing and extinguishing device for mine |
| 07/31/2013 | CN203102024U Mining integrated automatic watering dust fall controller |
| 07/31/2013 | CN203101892U Power carrier communication-based spraying dust reduction controller |
| 07/31/2013 | CN203097946U Anti-explosion air-tight door for mine refuge chamber |
| 07/31/2013 | CN203097933U Movable type multifunctional slurry injecting system for coal mine |
| 07/31/2013 | CN203097932U Automatic atomizing and dedusting device |
| 07/31/2013 | CN203097931U Mining coal bed water injection equipment |
| 07/31/2013 | CN203097930U Efficient gas atomizing inhibition device for coal mine |
| 07/31/2013 | CN203097929U Drawer-type dust collection device |
| 07/31/2013 | CN203097928U Efficient mine dedusting system |
| 07/31/2013 | CN203092755U Double-acting helical pulping machine |
| 07/31/2013 | CN103225514A Mixed type mine dust falling agent automatic adding device |
| 07/24/2013 | CN203081489U Underground automatic dust-preventive spraying device for coal mine |
| 07/24/2013 | CN203081488U Hard rock heading machine cutter feeding dust removing spraying system |
| 07/24/2013 | CN203081487U Air-water linkage spraying dust-falling device |
| 07/24/2013 | CN203081486U Simple mine dedusting humidification device |
| 07/24/2013 | CN203081485U Air flow purifying device |
| 07/24/2013 | CN203081484U Laneway dust-blocking curtain |
| 07/24/2013 | CN203075859U Foam generator for preventing and extinguishing fire |
| 07/24/2013 | CN103216257A Method and device for dust falling by magnetized fine water mist in process of mining |
| 07/24/2013 | CN103216256A Mine pneumatic wet type pore dust settling device |
| 07/24/2013 | CN102336994B Polyvinyl alcohol foam oxygen insulation material and preparation method and application thereof |
| 07/24/2013 | CN102261260B New method for preventing coal dust explosion under coal mine shaft |
| 07/23/2013 | US8491061 System for spraying water to reduce dust while drilling in a mine tunnel |
| 07/17/2013 | CN203067013U Mining dust removal sprayer |
| 07/17/2013 | CN203067012U Anti-explosion humidifier in mine |
| 07/17/2013 | CN203067011U Open-close type blowout prevention hole composite dust hood |
| 07/17/2013 | CN203067008U Railway tunnel fire prevention ventilation system |
| 07/17/2013 | CN203066976U Water valve of coal cutter with flow pressure control |
| 07/17/2013 | CN203066975U Water valve for coal cutter |
| 07/17/2013 | CN103206237A Surface slide total-seal spraying device |
| 07/17/2013 | CN102042027B Coal mine gas drilling drainage device |
| 07/10/2013 | CN203050761U Fire-proof blowout prevention dust settling device |
| 07/10/2013 | CN203050760U Water curtain wall jet device |
| 07/10/2013 | CN203050759U Foam dust removing system |
| 07/10/2013 | CN203050758U Roadway dirt retention rapid cleaning sprayer |
| 07/10/2013 | CN203050569U High-speed hydraulic drilling rig |
| 07/10/2013 | CN103195465A Water curtain foam dust removal device |
| 07/10/2013 | CN103195464A Application equipment of foam-sol technology for controlling coal dust on working faces of coal mines |
| 07/10/2013 | CN103195463A Filling gas explosion eliminator |
| 07/10/2013 | CN103195462A Liquid addition and atomization device for mine nitrogen-filling process |
| 07/10/2013 | CN103195422A Water-spray punching shovel coal cutter |
| 07/10/2013 | CN103195378A Negative-pressure jet spraying dust suppression device |
| 07/03/2013 | CN203035256U Waste rock bashing device capable of preventing waste rock from being lifted to ground from well |
| 07/03/2013 | CN203035230U Sound-control disc type mist-spraying and dust-settling water curtain |
| 07/03/2013 | CN203035229U Rotating spraying device special for atomization of coal mine |
| 07/03/2013 | CN203035228U Foot-operated type spray switch for harrow loader |
| 07/03/2013 | CN203035227U Wind and water mixing spraying device |
| 07/03/2013 | CN203035226U Energy-saving self circulation dedusting device for pulp shooting machine |
| 07/03/2013 | CN203035225U Automatic control coal seam water injecting system |
| 07/03/2013 | CN103184883A High-efficiency dust removal method for driving face |
| 07/03/2013 | CN103184882A Mineral fireless locomotive |
| 07/03/2013 | CN102191935B Water vapor rotating jet dust settling device for comprehensive driving working face |
| 06/26/2013 | CN203025142U Atomizing sensor |
| 06/26/2013 | CN203022802U Dust absorption nozzle device for dust remover |
| 06/26/2013 | CN203022801U Coal roadway three-dimensional dust prevention and dust settling device |
| 06/26/2013 | CN203022800U Rock tunneling spray blocking associated dust prevention and dust settling device |
| 06/26/2013 | CN203022799U Foam atomizing dust collector |
| 06/26/2013 | CN203022798U Rubber-wheel carrying trolley used for dust remover in coal mine inclined shaft |
| 06/26/2013 | CN203022797U Device capable of supplying water and draining sewage automatically |
| 06/26/2013 | CN203022796U Coal mine tunnel accumulated dust removal device |
| 06/26/2013 | CN203022795U Mining novel window-shade dehydration device |
| 06/26/2013 | CN203022794U Gas explosion suppression system for coal mines |
| 06/26/2013 | CN203022793U Adjustable dust adsorption head |
| 06/26/2013 | CN103174452A Liquid nitrogen self-pressurization and inhibition fire extinguishing system |
| 06/26/2013 | CN103174451A Fire prevention and extinguishing technology for high-gas-content fully mechanized caving face coal seam prone to spontaneous combustion and in suspension state |
| 06/19/2013 | CN203008956U Random automatic spraying device |