E21F 16 - Drainage - Patents Sitemap

Patents for E21F 16 - Drainage (1,138)
12/2011
12/14/2011	CN202073594U 一种矿用集水装置 Ore with a catchment device
12/14/2011	CN202073588U 矿井瓦斯抽采管网自动放水系统 Mine gas drainage pipe network automatic drain system
12/14/2011	CN102278142A 真空轻型井点降水方法 Vacuum well point dewatering method
12/14/2011	CN102278141A 一种新型井下巷道排水装置 A new underground roadway drainage
12/14/2011	CN102278089A 一种提高地面瓦斯抽排井套管稳定性的方法 A ground gas drainage methods to improve the stability of the well casing
12/14/2011	CN101566073B 一种寒区隧道施工缝双源供热排水防冻方法 Tunnel construction of a dual-source heating in cold regions seam drainage freezing method
12/07/2011	CN202065007U 一种用于地下金属矿山采场嗣后充填料浆快速脱水系统 An underground metal mine stope subsequent rapid filling slurry dewatering system
12/07/2011	CN202065003U 矿井巷道椭圆形双开式全自动灾害堵防装置 Mine tunnel open oval twin disasters automatic anti-blocking device
12/07/2011	CN202065002U 矿井平板双开式全自动灾害堵防装置 Automatic double open flat mine disaster prevention blocking device
12/07/2011	CN202065001U 矿井绞车巷道全自动灾害堵防装置 Winch mine roadway blocking automatic disaster prevention device
12/07/2011	CN202064960U 横贯隧道式溶腔稳固处理体系 Trans tunnel cavern firm handling system
12/07/2011	CN202064950U 掘挖一体机截割头 Dig digging machine cutting head
12/07/2011	CN202064363U 混凝土底板拖水装置 Concrete floor dragging water installations
12/07/2011	CN202064333U 塑料盲沟管材 Plastic blind ditch pipe
12/07/2011	CN202064332U 塑料盲沟 Plastic blind ditch
12/07/2011	CN202064331U 盲沟管 Blind ditch pipe
12/07/2011	CN102268994A 复合式土压平衡盾构机供水系统 Composite EPB shield machine water supply system
12/07/2011	CN101922306B 潜水履带式瓦斯闭锁泵车 Submersible pump gas locking crawler
11/2011
11/30/2011	CN202055863U 一种矿用隔爆型自动负压排渣放水器 One kind of flameproof automatic vacuum slagging turn on the water
11/30/2011	CN102261263A 自动放水器监控系统 Automatically turn on the water monitoring system
11/23/2011	CN202047865U Simple U-shaped enclosed water guide apparatus used in coal mine tunnel
11/23/2011	CN202047864U Sump dredging device
11/16/2011	CN202039899U Roof trickled water collector
11/16/2011	CN202039898U Device for automatically draining water in borehole in gas drainage
11/16/2011	CN202039897U Coal mine underground coal slurry pumping device
11/16/2011	CN202039896U Novel dredging device for mine sump
11/16/2011	CN101566067B Entire-underground cable tunnel safety manhole being used also as ventilation shaft
11/09/2011	CN202033868U Alarm device for drainage
11/09/2011	CN202031648U Automatic water drainage device for gas drainage of coal mine
11/09/2011	CN202031637U Elliptical single-open-type full-automatic disaster blocking and preventing device for mine tunnels
11/09/2011	CN202031635U Full automatic disaster blocking device for well rail haulage road
11/02/2011	CN202023588U Vertical pump head for vertical downhole operation drainage car
10/2011
10/26/2011	CN202017527U Automatic buoyancy opening and closing one-way drainage device
10/26/2011	CN202017526U Mine underground draining device
10/26/2011	CN202017515U Dust removing fan
10/19/2011	CN202012516U Hydraulic actuator for automatic drainage system of coal mine
10/12/2011	CN202007690U Water amount controller with drilling holes for prospecting and draining water
10/12/2011	CN101793040B Dredging loader for water sump
10/05/2011	CN202001245U Explosion-isolation type rapid-moving pump station used in mine
10/05/2011	CN202001061U Rapid transit railway tunnel vault loess gully protective construction
10/05/2011	CN202001060U Improved shield machine drainage system
10/05/2011	CN202001059U Automatic control device for deep-well water level
10/05/2011	CN202001058U Inner layer well wall water pressure test and water drain device for vertical shaft
10/05/2011	CN202000322U Plastic drainage blind ditch material
09/2011
09/28/2011	CN201991548U Drainage, slag discharge and gas extraction integrated device
09/21/2011	CN201984352U 基坑自动抽水控制器 Pit automatic pumping controller
09/21/2011	CN201984333U 矿用自动排水用操作台 Mine drainage console automatically
09/21/2011	CN201981531U 收缩密接复合汇流管 Contraction adhesion complex manifold
09/21/2011	CN201981520U 排水塑料盲沟管材 Plastic blind ditch drainage pipe
09/21/2011	CN102191949A Method for draining water gushing from wall during mine shaft construction
09/21/2011	CN102191940A Water conveyance tunnel with prestressed composite lining for shield tunnelling
09/14/2011	CN101200905B Sump silt cleaner
09/07/2011	CN201963355U 立井井筒淋水疏导装置 Mine Shaft tricking grooming device
09/07/2011	CN201963342U 抽排煤矿井下瓦斯钻孔积水装置 Drainage water means coal mine gas drilling
09/07/2011	CN201963328U 城市隧道通风系统 City Tunnel Ventilation System
08/2011
08/31/2011	CN201953410U 便携式防爆加压泵 Portable explosion-proof pressure pump
08/31/2011	CN201953409U 单曲柄无级调速游梁式抽水机 Single Crank variable speed pump beam
08/31/2011	CN201953399U 矿用瓦斯抽放自动放水器 Mine gas drainage automatically turn on the water
08/31/2011	CN102168582A Drainage method for groundwater in construction of deviated well
08/31/2011	CN102168581A Split precipitation type hanging scaffold water tank for automatic pollution discharge of vertical shaft
08/31/2011	CN101592042B Mine confined water self-discharging system
08/24/2011	CN201943750U 自动放水装置 Automatic drainage device
08/24/2011	CN102162374A An anti-blocking device for a gob water drainage drill hole
08/17/2011	CN201934138U Gas extraction drainage device and gas extraction drainage system
08/17/2011	CN201934137U 一种用于煤矿瓦斯抽采管的自动放水器 A coal mine gas drainage tube automatically turn on the water
08/17/2011	CN102155444A Hydraulic actuator for automatic drainage system of coal mine
08/17/2011	CN102155380A Explosion proof type fast-moving pump station for mine
08/10/2011	CN201924326U 涵管 Culvert
08/10/2011	CN1776196B Method and system for accessing subterranean deposits from the surface
08/10/2011	CN101975086B Full-automatic overflow device for gas extraction by drill holes in high-positioned drill site
08/10/2011	CN101871348B Water-conducting and pressure-releasing type composite well wall of vertical shaft and construction method thereof
08/03/2011	CN201915373U 盲沟管材 Blind ditch pipe
08/03/2011	CN201915372U 盲沟材 Blind ditch timber
08/03/2011	CN201915371U 塑料盲沟材 Plastic blind ditch timber
07/2011
07/28/2011	CA2709602A1 Method and product for absorbing and consolidating nuisance water or slurry accumulations
07/27/2011	CN201908286U Plastic blind ditch pipe for drainage
07/27/2011	CN201908285U Plastic blind ditch for drainage
07/27/2011	CN201908284U 盲沟 Blind ditch
07/27/2011	CN102135014A Automatic draining device
07/27/2011	CN102135009A Automatic water discharging device
07/27/2011	CN101614129B Construction method of tunnel waterproof and water drainage system
07/20/2011	CN201902235U Automatic control type ice-melting system used in railway tunnel
07/20/2011	CN201902234U Automatic negative pressure drainage device
07/20/2011	CN201902233U Exploit drainage device for coal mine
07/20/2011	CN102128046A Automatic water discharge device
07/20/2011	CN102128045A Negative-pressure automatic water-draining device
07/20/2011	CN101539783B Automatic pumping controller
07/13/2011	CN201896633U High-lift drainage device of sump
07/06/2011	CN1727636B Method and system for accessing subterranean deposits from the surface
06/2011
06/29/2011	CN201884064U Dehumidification exhaust device for control cabinet of totally closed automatic cable tunnel draining device
06/29/2011	CN201884063U Drain structure for coal bunkers
06/29/2011	CN201884062U Mine intrinsic safety type automatic dewatering and measurement and control protective device
06/29/2011	CN201884050U Flow rate gap bridge device for gas drainage pipeline
06/29/2011	CN102109845A Mine operating platform for automatic water draining
06/22/2011	CN201874741U Radial plunger type hydraulic motor
06/22/2011	CN201874614U Drainage structure for emptying overhaul of derivation tunnel
06/22/2011	CN201873921U Inflatable rubber mold for drainage ditch
06/22/2011	CN102102532A Automatic drainage device for mine gas extraction pipe
06/22/2011	CN102102530A Water drainage system and method based on downward drainage borehole
06/16/2011	DE102009058368A1 Water-lifting device for underground mining, has working cylinder fastened to common piston rod and moved into working cylinder, which is provided at both ends with inlet and outlet valves for hydraulic drive medium

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