| Patents for E21F 15 - Methods or devices for placing filling-up materials in underground workings (1,589) |
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| 06/13/2012 | CN101769162B Tray and steel wire rope connecting device for tray type throwing system |
| 06/13/2012 | CN101737078B Structure and method for preventing filled wall bodies of gob-side retained entries from sliding |
| 06/06/2012 | CN202266260U 煤与矸石分离并将矸石回填的技术装备 Separation of coal and waste rock and waste rock backfill technology and equipment |
| 06/06/2012 | CN101451442B Control method and control device for controlling auxiliary material addition to tailings |
| 06/06/2012 | CN101358540B Sand warehouse for filling device |
| 05/30/2012 | CN202250225U Solid filling scraper conveyor |
| 05/30/2012 | CN202250119U Totally-enclosed U-shaped shed support frame for roadway supporting |
| 05/30/2012 | CN202245095U Middle groove provided with scuttle of solid filling scraper conveyer |
| 05/30/2012 | CN101892862B Full tailing filling method in large goafs |
| 05/29/2012 | CA2623698C Method and system for mining hydrocarbon-containing materials |
| 05/23/2012 | CN101956565B Filling coal mining chain type feeding system |
| 05/23/2012 | CN101949301B Different-strength bearing roadway-beside filling body of gob-side entry under coal mine |
| 05/23/2012 | CN101845965B Pressure discharge method for anti-blocking chamber of feeding well |
| 05/23/2012 | CN101806226B Mined out space dam-type filling method |
| 05/23/2012 | CN101793163B Guide rail type independent double semicircle well structure |
| 05/16/2012 | CN202220622U Exploitation-deformation resisting wall of mine area |
| 05/10/2012 | US20120114429 Frozen baclfill mix formulations and process for use thereof in underground mining applications |
| 05/09/2012 | CN202215292U Double-guiding waste rock filling mechanism for hydraulic support |
| 05/09/2012 | CN202215291U Containing type gangue filling tamping mechanism used for gangue filling hydraulic support |
| 05/09/2012 | CN202215249U Layering pack wall along for hollow entry retaining in solid filling coal mining |
| 05/09/2012 | CN102444421A Method for grouting gob by using air pump |
| 05/09/2012 | CN102444420A Dragging tube type filling method of thin coal bed fractured roof |
| 05/09/2012 | CN102444419A Pipe-hauling-type filling system for thin seam breaking roof |
| 05/09/2012 | CN102444418A Device for filling roadway |
| 05/09/2012 | CN102444401A Coal mining method by filling on blasting mining face of thin coal seam and relevant equipment |
| 05/09/2012 | CN101054905B Single side reverse-folding welding and edge-wrapping reinforced steel-plastic net and supersonic net edge folding-welding machine |
| 05/02/2012 | CN102434204A Mine waste rock and all tailing pipeline conveying filling system and filling method using same |
| 05/02/2012 | CN102434203A Gob-side entry retaining double-layer sliding die filling method |
| 05/02/2012 | CN102434202A Gob-side entry retaining double-layer sliding die filling system |
| 05/02/2012 | CN102434201A Method for repairing damaged blocked filling drill holes |
| 05/02/2012 | CN102434200A Technique for manufacturing steps by using dehydration well mouth standing mould for mine |
| 05/02/2012 | CN102434182A Filling hydraulic bracket with automatic bag overturning mechanism |
| 05/02/2012 | CN102434163A Method for mining coal through comprehensive mechanized solid filling |
| 05/02/2012 | CN102434162A Panel tailing filling mining method |
| 05/02/2012 | CN102434161A Stepless cross pitch sectional continuous backfilling mining method of gently-inclined medium-thickness ore body |
| 05/02/2012 | CN102434160A Two-wing-precutting central room-and-pillar-free combined cross cut continuous segmental fill mining method |
| 05/02/2012 | CN102432994A Polyurethane-based flame-retardant antistatic multi-nano-component foam material, and preparation method thereof |
| 04/25/2012 | CN102425454A 一种砌筑填充组合式沿空留巷墙体的构筑方法 One kind of masonry filling combined for Gob method for constructing the wall |
| 04/25/2012 | CN102425453A 一种小窑破坏区域充填规模化复采方法 Filling a small-scale kiln complex undermine regional mining method |
| 04/25/2012 | CN102425155A 一种采空区上覆岩体浅层加固方法 Overlying shallow rock reinforcement method on a mined-out area |
| 04/25/2012 | CN101818648B 矸石充填巷旁挤压成型模板 Lane beside waste filling extruded template |
| 04/18/2012 | CN102418555A Method for filling mine goaf by utilizing high-concentration all tailing cement |
| 04/18/2012 | CN101775985B 一种深埋铁矿产资源地下采、选一体化系统 One kind of iron mineral resources buried underground mining, integrated system |
| 04/04/2012 | CN202181910U 双顶梁同轴铰接四连杆采充一体化液压支架 Double top hinged four-link beam coaxial hydraulic support integrated mining charge |
| 04/04/2012 | CN102400711A 一种矿井充填管路自动切换装置 Filling in mine pipeline automatic switching devices |
| 04/04/2012 | CN102400700A 移动式机械密封充填开采支架 Mobile mechanical seal backfill mining bracket |
| 03/28/2012 | CN202176368U Gangue-clamping preventing structure for gangue filling and tamping mechanism |
| 03/28/2012 | CN202176353U Two-stage stretching tamping mechanism for gangue filling hydraulic support |
| 03/28/2012 | CN102392644A Stripped fluid expansion filling mining method for below middle thick coal seam |
| 03/28/2012 | CN102392641A Point pillar type full-ore-deposit middle-section-free upward high-layering continuous propelling fill mining method |
| 03/21/2012 | CN102383857A Gob-side entry retaining process for solid-filling, coal-mining and laying gangue wall |
| 03/21/2012 | CN102383728A Coal mine rockburst defect segmentation and control method |
| 03/21/2012 | CN101906991B Construction method for managing underground mined-out area or cavity |
| 03/21/2012 | CN101858217B House pillar changeable panel upward demix filling mining method |
| 03/14/2012 | CN202165122U 双曲柄开窗泄矸槽结构 Refuse double crank windows to vent slot structure |
| 03/14/2012 | CN202165121U 膏体自溜充填模拟试验装置 Self-slip paste filling simulation test device |
| 03/14/2012 | CN102373955A Steel wire rope cemented filling method used in open stope mining subsequent filling gob |
| 03/14/2012 | CN102373954A Method for filling empty region formed after exploitation of gas hydrate |
| 03/07/2012 | CN102367741A Mortar making system and process suitable for large horizontal sand silo of mine filling station |
| 03/07/2012 | CN101725352B Method for filling solid and fully mechanizing and recovering room type coal pillar |
| 02/22/2012 | CN202146834U 一种免清洗注浆泵 A no-clean injection pump |
| 02/22/2012 | CN102359394A Method for determining production capacity of filler slurry mixing equipment |
| 02/22/2012 | CN101906979B 沿空留巷支护方法及其注巷滑模 Supporting method roadways along its left lane Sliding Notes |
| 02/22/2012 | CN101775987B 地下立交上下主隧道交叠处零间距施工方法 Up and down the main tunnel underground interchange at zero pitch overlapping construction methods |
| 02/15/2012 | CN102352773A Sectional filling method of old lane |
| 02/01/2012 | CN202132071U 一种综采放顶煤无煤柱开采巷道扩帮充填密封模具 One kind of mechanized coal caving mining without coal pillar roadway expansion to help fill seal mold |
| 02/01/2012 | CN202132070U 用于矿井孔隙充填及密闭的便携注浆系统 For mine closed pore-filling and portable grouting system |
| 02/01/2012 | CN102337925A Method for enlarging, filling and supporting coal-pillar-free mining roadway for fully-mechanized top coal caving |
| 02/01/2012 | CN102337892A Upward drift filling method |
| 02/01/2012 | CN101864988B 钾盐矿采空区充填方法 Potash mine goaf filling method |
| 02/01/2012 | CN101560883B 沿空留巷作业模架 Gob - Job mold |
| 01/25/2012 | CN202125304U Positive four connecting bar type filling hydraulic support with compacting function |
| 01/25/2012 | CN102330567A Goaf slip casting treatment method of road |
| 01/25/2012 | CN101761340B Middle-waisted bidirectional filling and mining method under canopy guard in thick and great metal mine in sea bed |
| 01/18/2012 | CN202113960U Filling mud-making water nozzle |
| 01/18/2012 | CN102322291A Filling method for reducing onway resistance losses of paste-like slurry |
| 01/11/2012 | CN202108541U Empty hearth ash replenishment filling device |
| 01/04/2012 | CN102305069A Technology and equipment for separating coal and gangue and refilling gangue |
| 01/04/2012 | CN101812988B Method for mining gently dipping to steep dipping thick and large ore bodies |
| 01/04/2012 | CN101469614B Filling apparatus |
| 12/29/2011 | DE102010022004B4 Verfahren zur Nutzung von Restvorräten in der Nachbetriebsphase von Kaligruben Method for using remaining stocks in the post of potash mines |
| 12/28/2011 | EP2400112A1 Producing hydrocarbon material from a layer of oil sand |
| 12/28/2011 | EP2400111A1 Producing hydrocarbon material from a layer of oil sand |
| 12/28/2011 | CN102296988A 膏体自溜充填模拟试验装置 Since slip paste filling simulation test device |
| 12/28/2011 | CN102296987A 巷旁充填沿空留巷软介质接顶方法 Lane beside filling Gob - soft top media access method |
| 12/21/2011 | CN102287211A 沿空留巷端头液压支架及其进行沿空留巷煤矿开采的方法 Gob - end hydraulic support and a method for Gob coal mining |
| 12/14/2011 | CN102278140A 一种固体充填采煤垒砌矸石墙沿空留巷法 A solid wall filled with coal gangue and assembled Gob - France |
| 12/14/2011 | CN102278115A 一种不规则条带状分布贫薄浅埋矿层的高效安全环保开采方法 Efficient and environmentally safe mining methods an irregular distribution of poor strip of thin seam Shallow |
| 12/14/2011 | CN101871363B 井下煤和矸石分时运输充填系统 Underground coal and gangue sharing transportation filling system |
| 12/07/2011 | CN202065008U 一种充填反复捣实液压机构 One kind of filling the hydraulic mechanism repeatedly ramming |
| 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 | CN102269013A 复杂煤层条件下的单体支柱工作面矸石机械化充填方法 Prop Face in complex mechanized coal gangue filling method conditions |
| 12/07/2011 | CN102269004A 一种煤矿充填开采工作面支护系统 Filling one kind of coal mining face support system |
| 12/07/2011 | CN102269000A 膏体充填支护一体化液压支架的前架 Supporting the integration of paste filling hydraulic support the front frame |
| 12/07/2011 | CN101725365B 一种六柱支撑式采煤充填液压支架 One kind of six-supporting pillar mining filling hydraulic support |
| 11/30/2011 | CN202055862U 一种大充填倍线条件下的输送系统 Delivery systems under a large filling times the line conditions |
| 11/30/2011 | CN202055861U 一种充填管路接头转换装置 One kind of filling pipe joints converter |
| 11/30/2011 | CN202055860U 煤岩体高分子充填发泡材料的注射装置 Polymer injection device coal and rock filled foam materials |
| 11/30/2011 | CN102261262A 矿山采场的高性能泡沫砂浆充填方法 High performance foam mortar mine stope filling method |
| 11/30/2011 | CN102261257A 用于架后充填的液压支架及其操作使用方法 After filling the hydraulic support frame for its use operation |