Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21F - Safety devices, transport, filling-up, rescue, ventilation, or drainage in or of mines or tunnels › E21F 7 - Methods or devices for drawing-off gases with or without subsequent use of the gas for any purpose
Patents for E21F 7 - Methods or devices for drawing-off gases with or without subsequent use of the gas for any purpose (2,187)
07/2014
07/23/2014CN203730071U 磁铁式集气、自动放水装置 Magnet gas gathering, automatic drainage device
07/23/2014CN203730058U 煤矿瓦斯抽采控制系统 CMM control system
07/23/2014CN203730057U 一种煤层瓦斯抽采管装置 One kind of coal seam gas drainage tube device
07/23/2014CN203730056U 集气、自动放水装置 Gas gathering, automatic drainage device
07/23/2014CN103939143A 煤层巷道破碎带影响范围的测定方法及其装置 Coal Roadway broken with the scope of the measurement method and apparatus
07/23/2014CN103939129A 钻抽一体化装置 Integrated Device pumping drilling
07/23/2014CN103939128A 瓦斯抽采管钻送方法 Gas drainage tube feeding method drill
07/23/2014CN103939126A 一种煤矿开采工作面煤层注水方法 One kind of coal mining face in seam water injection method
07/23/2014CN103939077A 一种高应力低孔隙率煤层射孔压裂增透方法 A high-stress low porosity AR seam fracturing method of perforating
07/23/2014CN103939019A 一种瓦斯抽放钻孔液压扩孔增透装置 One kind of gas drainage drilling hydraulic reaming AR device
07/23/2014CN103939012A 高应力松软突出厚煤层大直径钻孔装置 Outstanding high stress soft thick seam large diameter drilling device
07/16/2014CN203717022U 一种采空区移动式瓦斯抽采装置 One kind of mobile goaf gas drainage device
07/16/2014CN103924943A 一种煤层瓦斯抽采封孔装置及封孔方法 One kind of coal seam gas extraction sealing device and sealing method
07/16/2014CN102678167B 近距离煤层群水力压裂石门揭煤方法 Distance seam group method of hydraulic fracturing Cross Cut
07/16/2014CN102628352B 一种多段式定点水力压裂方法 A multi-stage hydraulic fracturing method sentinel
07/16/2014CN102628345B 一种高密封性的近水平钻孔密封方法 A high-tightness of sealing methods nearly horizontal drilling
07/09/2014CN203702253U 一种煤矿用压裂管单向刚性支撑机构 One kind Mine fracturing Rigidity support mechanism
07/09/2014CN203702235U 一种间歇式负压自动放水器 A batch-type vacuum automatically turn on the water
07/09/2014CN203702234U 软煤发育区应力释放增透装置 Soft coal development zone stress relief device AR
07/09/2014CN203702233U 软煤发育区瓦斯抽采孔支撑装置 Soft coal gas drainage hole developed area support device
07/09/2014CN203702232U 瓦斯管路防回气及排渣一体装置 Gas pipeline gas and slag one anti-return device
07/09/2014CN203702070U 一种煤矿低抽巷穿层钻孔返渣封孔装置 One kind Mine Drainage Roadway Borehole low back slag sealing device
07/09/2014CN203702014U 一种钻、冲、压多功能钻杆 One kind of drilling, punching, pressing multifunction drill
07/09/2014CN203701968U 用于软煤层钻进的护孔式钻孔装置 Care for soft coal seam drilling hole drilling equipment
07/09/2014CN203701964U 多功能水射流喷头 Multifunctional water jet nozzle
07/09/2014CN203701961U 一种煤矿用钻冲压裂一体作业机 One kind of coal mine drilling machine stamping split one job
07/09/2014CN103912304A 一种松软煤层本层瓦斯抽采方法 This one kind of soft coal seam gas drainage layer method
07/09/2014CN103912303A 一种全自动搅拌式排渣放水器 A fully automatic stirring slagging turn on the water
07/09/2014CN103912302A 一种穿层钻孔水力破裂瓦斯抽采方法 One kind of hydraulic fracture Borehole Gas Drainage
07/03/2014WO2014101653A1 Drilling hole sealing apparatus and method using flexible filling material
07/02/2014CN203685270U 一种新型分级式可控瓦斯抽放管 A new hierarchical controlled gas drainage pipes
07/02/2014CN203685269U 一种孔口预抽排瓦斯装置 One kind of pre-orifice gas pumping device
07/02/2014CN203685105U 一种带压封孔装置 A tape pressure sealing device
07/02/2014CN203685101U 一种新型矿用瓦斯钻孔孔外封孔装置 A new mine gas drilling holes outside the sealing device
07/02/2014CN103899350A 综放工作面架载顶煤瓦斯抽采系统 Mechanized top coal caving face plane carrying gas drainage system
07/02/2014CN103899349A 一种煤层瓦斯预抽采方法及抽采孔径向钻进导向装置 One kind of pre-seam gas drainage methods and extraction aperture to the drilling guide
07/02/2014CN103899348A 一种采煤工作面瓦斯快速抽采方法 One kind of Coal Face Gas rapid drainage methods
07/02/2014CN103899271A 突出煤层采煤工作面长钻孔脉动注水防突方法 Prominent seam coal face long pulsating Water Injection drilling method
07/02/2014CN103899268A 一种提高瓦斯抽采封孔密闭性的方法 A method of sealing tightness of gas drainage improvement
07/02/2014CN103899247A 一种煤矿用钻冲压裂一体作业机 One kind of coal mine drilling machine punched split one job
06/2014
06/25/2014CN203671055U 覆塑螺旋咬缝不锈钢瓦斯抽放管 Plastic coated stainless steel spiral seam gas drainage pipe bite
06/25/2014CN203669921U 松软破碎煤层瓦斯抽采孔跟管钻进装置 Soft broken seam gas drainage hole drilling apparatus with tubes
06/25/2014CN203669920U 瓦斯稀释装置及瓦斯稀释系统 Gas and gas dilution system dilution device
06/25/2014CN203669919U 一种煤矿乏风甲烷的提取装置 A lack of coal mine methane extraction means wind
06/25/2014CN203669918U 一种煤矿乏风收集装置 One kind of coal mine VAM collection device
06/25/2014CN203669917U 地面瓦斯排空系统 Ground gas evacuation system
06/25/2014CN203669916U 煤矿井下瓦斯抽放组合观测装置 Coal mine gas drainage observation apparatus combination
06/25/2014CN203669915U 手动排渣放水器 Manual slagging turn on the water
06/25/2014CN103883348A 一种采动区瓦斯抽采井地面管路的焊接方法 One kind of mining extraction wells ground Gas pipeline welding method
06/25/2014CN103883276A 一种经济简易高效煤层瓦斯抽放钻孔封孔方法 Simple and efficient an economical sealing seam gas drainage drilling method
06/18/2014CN203656408U 一种复合管道用法兰 A composite pipe flange
06/18/2014CN203655353U 水煤渣瓦斯自动分离排出装置 Water cinder gas discharge device automatic separation
06/18/2014CN203655352U 一种煤矿瓦斯抽采管的自动放水器 One kind of coal mine gas drainage pipe automatic drain filter
06/18/2014CN203655346U 一种空化射流割缝卸压装置 A Space-based jet cutting pressure relief device
06/18/2014CN203655345U 一种封孔器 One kind of sealing device
06/18/2014CN203655344U 一种矿用水封阻火泄爆装置 Fire Ore water seal venting device
06/18/2014CN203655220U 一种瓦斯抽采钻孔气囊封堵带压注浆封孔装置 One kind of gas Borehole Pressure grouting sealing balloon occlusion device
06/18/2014CN103867230A Slag water drainage device for underground mine gas drainage pipeline and slag water drainage method utilizing slag water drainage device
06/18/2014CN103867213A United construction method preventing gas leakage and bottom heave deformation of coal-included layer base plate of coal mine
06/18/2014CN102644476B Method for pumping gas of protected layer by layer penetration and hole drilling on high-position drilling fields of protecting layer machinery tunnel
06/18/2014CN102635395B Method for governing gas ultralimit during initial mining stage of coal mine working face
06/18/2014CN102518464B Method for extracting gas at corner on recovery working face in coal mine
06/11/2014CN203641699U 不锈钢加强筋螺旋瓦斯抽放管 Stainless steel reinforcement spiral gas drainage tube
06/11/2014CN203640769U 矿井巷道瓦斯主管道自动放水器 Mine tunnel gas main channel automatically turn on the water
06/11/2014CN203640763U 一种钻口粉尘抽采系统常平架固定装置 One kind of diamond dust extraction systems mouth gimbal fixtures
06/11/2014CN203640762U 一种钻口粉尘抽采系统固定装置 One kind of diamond dust extraction systems mouth fixtures
06/11/2014CN203640754U 煤矿混合资源综合开采系统 Hybrid integrated coal mining system resources
06/11/2014CN203640656U 用于抽放瓦斯的锥形封孔器 For gas drainage tapered sealing device
06/11/2014CN203635048U 一种乏风瓦斯氧化利用的导流装置 A wind deflector methane oxidation lack of use
06/11/2014CN103850699A Inner support hole protection pipe for pumping gas from soft coal seam and manufacturing method
06/11/2014CN103850698A Jet-flow ejector capable of automatically diluting upper corner gas
06/11/2014CN103850697A Hole packer for drawing out methane and grouting
06/11/2014CN103848423A Cyclic closed type inert gas generating device of coal mine goaf
06/11/2014CN102777205B Method for determining spatial position of horizontal well for gas drainage in worked-out area
06/04/2014CN203626881U 孔口瓦斯抽采除渣器 Orifice gas drainage Cleaner
06/04/2014CN203626880U 一种瓦斯抽采封堵装置 One kind of gas drainage sealing device
06/04/2014CN103835748A Method and device for surface well-drilling gas extraction
06/04/2014CN103835747A System and method for comprehensively utilizing low-concentration gas
06/03/2014US8740310 Mining method for co-extraction of non-combustible ore and mine methane
05/2014
05/28/2014CN203614127U 一种透气性充填钻孔可回收护孔套管 A permeable adhesive filling holes drilled recyclable retaining sleeve
05/28/2014CN103821554A 基于无煤柱开采y型通风采空区的钻孔布置方法 Based on drilling arrangement no pillar mining method y type of pass GOAF
05/28/2014CN103821553A 一种确定y型通风采空区瓦斯富集区域的方法 A y-type pass GOAF method to determine gas-rich region
05/28/2014CN102824808B 一种利用太阳能富集煤矿瓦斯的系统 A use of solar energy systems enriched CMM
05/28/2014CN102493831B 地面压裂井下水平钻孔抽放煤层气方法 Ground fracturing underground drainage CBM horizontal drilling method
05/21/2014CN203603971U 用于瓦斯抽放管道的排水装置 Gas drainage for drainage pipes
05/21/2014CN203603966U 一种环缝引射式瓦斯抽排器 One kind of girth ejector type gas pumping device
05/21/2014CN203603965U 一种环缝引射式瓦斯稀释净化器 A cyclic seam gas dilution ejector type purifier
05/21/2014CN203603954U 一种煤矿乏风输送系统 One kind of coal mine ventilation air transport system
05/21/2014CN203603820U 一种煤矿打钻用瓦斯防喷及密封除尘装置 One kind of coal mine gas drilling BOP and seal with dust removal device
05/21/2014CN103806935A 一种固孔及防突装置 Hole and having a solid outburst prevention device
05/21/2014CN103806934A 一种高应力低孔隙率煤层预裂增透抽放瓦斯的系统及方法 A high stress and low porosity seam Presplit AR System and method for gas drainage
05/21/2014CN103806933A 高应力松软突出煤层开采方法 High stress soft prominent seam mining method
05/21/2014CN103806914A 一种煤与瓦斯突出矿井采煤方法 One kind of coal and gas outburst coal mining method
05/14/2014CN203594469U 一种瓦斯抽采系统的自动放水器 A gas pumping system to automatically turn on the water mining
05/14/2014CN203594446U 一种瓦斯含量测定仪 One kind of gas content analyzer
05/14/2014CN103790618A 一种矿用水浴式孔口防喷及除尘装置 One kind of mine water bath opening blowout preventer and dust removal device
05/14/2014CN103790546A 瓦斯预抽钻孔煤屑回填封孔方法 Pre pumping gas drilling cinder backfill sealing method
05/14/2014CN102852506B 一种高压气动爆破卸压增透方法 A high-pressure pneumatic blasting method relief AR
05/14/2014CN102720528B 煤矿井下重复脉动水力压裂强化瓦斯抽采方法 Repeat pulsating hydraulic fracturing of coal mine gas drainage method to strengthen
05/14/2014CN102296981B 矿井瓦斯抽采与消突数据处理系统 Mine gas drainage and eliminate sudden data processing system
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