CN103075153A - Open-air drilling coal cutter - Google Patents
Open-air drilling coal cutter Download PDFInfo
- Publication number
- CN103075153A CN103075153A CN2013100275349A CN201310027534A CN103075153A CN 103075153 A CN103075153 A CN 103075153A CN 2013100275349 A CN2013100275349 A CN 2013100275349A CN 201310027534 A CN201310027534 A CN 201310027534A CN 103075153 A CN103075153 A CN 103075153A
- Authority
- CN
- China
- Prior art keywords
- drill rod
- drill
- main
- telescopic boom
- open
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003245 coal Substances 0.000 title claims abstract description 38
- 238000005553 drilling Methods 0.000 title claims abstract description 23
- 238000005065 mining Methods 0.000 claims abstract description 15
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000005086 pumping Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims abstract description 4
- 238000011084 recovery Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 10
- 235000019198 oils Nutrition 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 235000019482 Palm oil Nutrition 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- BWWUAIVUUWYYDK-UHFFFAOYSA-N ethyl n-[4-[benzyl(2-phenylethyl)amino]-2-(4-chlorophenyl)-1h-imidazo[4,5-c]pyridin-6-yl]carbamate Chemical compound N=1C(NC(=O)OCC)=CC=2NC(C=3C=CC(Cl)=CC=3)=NC=2C=1N(CC=1C=CC=CC=1)CCC1=CC=CC=C1 BWWUAIVUUWYYDK-UHFFFAOYSA-N 0.000 description 1
- 239000002540 palm oil Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
Images
Landscapes
- Earth Drilling (AREA)
Abstract
本发明公开了一种露天用钻式采煤机,包括发电机组、移动泵站、主机、后座钻杆库、伸缩吊臂式辅助运输装置和主钻杆库;所述主机包括钻杆驱动马达,钻杆驱动马达通过钻杆机构连接前传动箱,在前传动箱上设有钻头,在钻杆机构处设有中间通风管;所述后座钻杆库设置在主机的尾部;所述移动泵站和主钻杆库分别设置在主机的两侧,移动泵站包括大功率电机,大功率电机的输入端连接发电机组,大功率电机的输出端通过分动器连接驱动泵,驱动泵连接钻杆驱动马达;所述伸缩吊臂式辅助运输装置设置在主钻杆库上。本发明解决了露天煤矿界边坡压煤开采所存在的工人劳动强度高、资源回收率较低和吨煤成本高的问题。
The invention discloses an open-pit drilling coal shearer, which includes a generator set, a mobile pumping station, a main engine, a rear drill rod library, a telescopic boom-type auxiliary transport device and a main drill rod library; the main engine includes a drill rod drive The motor, the drill rod driving motor is connected to the front transmission box through the drill rod mechanism, the front transmission box is provided with a drill bit, and the drill rod mechanism is provided with an intermediate ventilation pipe; the rear seat drill rod library is provided at the tail of the main machine; The mobile pumping station and the main drill pipe library are respectively installed on both sides of the main machine. The mobile pumping station includes a high-power motor. The input end of the high-power motor is connected to the generator set. The output end of the high-power motor is connected to the driving pump through the transfer case. The driving pump Connected to the drill pipe driving motor; the telescopic boom-type auxiliary transportation device is arranged on the main drill pipe library. The invention solves the problems of high labor intensity for workers, low resource recovery rate and high cost per ton of coal in the open-pit coal mine boundary slope coal pressing mining.
Description
技术领域technical field
本发明涉及一种采煤机械,尤其是一种适用于开采露天煤矿界边帮压煤的钻式采煤机。The invention relates to a coal mining machine, in particular to a drill type coal mining machine suitable for mining boundary coal in open-pit coal mines.
背景技术Background technique
在露天煤矿开采中,为了保证采掘场和排土场的边坡稳定,在采掘场和排土场需要按照一定帮坡角进行施工。由于矿权范围是以地表为界限圈定的,当露天煤矿开采到边界时,边帮各水平的剥离阶层压覆台阶以下的煤称之为界边帮压煤。In open-pit coal mining, in order to ensure the stability of the slopes of the excavation site and the dump site, construction needs to be carried out according to a certain side slope angle. Since the scope of mining rights is delimited by the surface, when the open-pit coal mine is mined to the boundary, the coal below the step is pressed by the stripping layers at each level of the side wall, which is called the boundary side pressure coal.
目前对于露天煤矿界边坡压煤的开采没有很有效的方法和设备,现常用的方法为边帮加陡法和台阶并段法,其对露天煤矿的地质要求极为苛刻,工作量大,工人劳动强度高,吨煤成本高。At present, there is no very effective method and equipment for coal mining on the boundary slope of open-pit coal mines. The commonly used methods are side-steepening method and step-joining method, which have extremely strict geological requirements for open-pit coal mines, and the workload is heavy. The labor intensity is high, and the cost per ton of coal is high.
发明内容Contents of the invention
发明目的:本发明的目的是一种适用于开采露天煤矿界边坡压煤的钻式采煤机,以解决现有露天煤矿界边坡压煤开采所存在的工人劳动强度高和吨煤成本高的问题。Purpose of the invention: the purpose of the present invention is a kind of drill type shearer suitable for mining boundary slope coal in open-pit coal mines, so as to solve the problems of high labor intensity and cost per ton of coal existing in the boundary slope coal mining of existing open-pit coal mines. high question.
为了解决上述技术问题,本发明采用了如下的技术方案:In order to solve the problems of the technologies described above, the present invention adopts the following technical solutions:
一种露天用钻式采煤机,包括发电机组、移动泵站、主机、后座钻杆库、伸缩吊臂式辅助运输装置和主钻杆库;所述主机包括钻杆驱动马达,钻杆驱动马达通过钻杆机构连接前传动箱,在前传动箱上设有钻头,在钻杆机构处设有中间通风管;所述后座钻杆库设置在主机的尾部;所述移动泵站和主钻杆库分别设置在主机的两侧,移动泵站包括大功率电机,大功率电机的输入端连接发电机组,大功率电机的输出端通过分动器连接驱动泵,驱动泵连接钻杆驱动马达;所述伸缩吊臂式辅助运输装置设置在主钻杆库上。A drilling type coal mining machine for open-air use, including a generator set, a mobile pump station, a main engine, a rear seat drill pipe storage, a telescopic boom type auxiliary transportation device, and a main drill pipe storage; the main engine includes a drill pipe driving motor, a drill pipe The drive motor is connected to the front transmission box through the drill rod mechanism, a drill bit is arranged on the front transmission box, and an intermediate ventilation pipe is arranged at the drill rod mechanism; the rear seat drill rod warehouse is arranged at the tail of the main engine; the mobile pump station and The main drill rod magazines are respectively set on both sides of the main engine. The mobile pump station includes a high-power motor. The input end of the high-power motor is connected to the generator set, and the output end of the high-power motor is connected to the drive pump through a transfer case. motor; the telescopic boom type auxiliary transport device is arranged on the main drill rod storehouse.
在本发明中,进一步的,所述主机尾部还设有后掌锚杆支撑和辅助后支撑油缸,所述后掌锚杆支撑通过后掌锚杆支撑上座与主机连接,后掌锚杆支撑上设有掌形支撑油缸和锚杆安装座,后掌锚杆支撑的底部设有锥形凸起;所述辅助后支撑油缸通过后支撑油缸安装座与后座钻杆库连接。In the present invention, further, the tail of the main engine is also provided with a rear palm bolt support and an auxiliary rear support oil cylinder, the rear palm bolt support is connected to the main engine through the rear palm bolt support upper seat, and the rear palm bolt support upper A palm support oil cylinder and an anchor rod mounting seat are provided, and a tapered protrusion is provided at the bottom of the back palm anchor rod support; the auxiliary rear support oil cylinder is connected with the rear seat drill rod store through the rear support oil cylinder mounting seat.
在本发明中,进一步的,所述后座钻杆库上设有后锚杆安装座。In the present invention, further, the rear anchor rod mounting seat is provided on the rear seat drill rod storage.
在本发明中,进一步的,所述移动泵站的底部设有左行走履带和右行走履带。In the present invention, further, the bottom of the mobile pumping station is provided with a left walking crawler and a right walking crawler.
在本发明中,进一步的,所述伸缩吊臂式辅助运输装置包括旋转支撑平台和三级伸缩吊臂,所述三级伸缩吊臂的一端通过卷扬马达与旋转支撑平台连接,三级伸缩吊臂的另一端设有吊装架,三级伸缩吊臂的中部设有调节油缸。In the present invention, further, the telescopic boom-type auxiliary transportation device includes a rotating support platform and a three-stage telescopic boom, one end of the three-stage telescopic boom is connected to the rotary support platform through a winch motor, and the three-stage telescopic boom The other end of the boom is provided with a hoisting frame, and the middle part of the three-stage telescopic boom is provided with an adjusting oil cylinder.
有益效果:(1)本发明露天用钻式采煤机的采煤、运煤工序全部由主机完成,同时无需工作面支护,大大降低了工人劳动强度和吨煤成本;(2)通过在主机和后座钻杆库上设置支撑机构,解决了钻机在露天煤矿使用时支撑力不够的问题;(3)移动泵站使得钻式采煤机的移机更加简便,降低了钻机的布置成本;(4)伸缩吊臂式辅助运输装置使装拆钻杆机构更加简便,其还可完成移动钻式采煤机其他部件调装作业,降低其他附属设备的投入成本。Beneficial effects: (1) The coal mining and coal transportation processes of the open-air drilling shearer of the present invention are all completed by the main engine, and at the same time, no support is required on the working face, which greatly reduces the labor intensity of workers and the cost of coal per ton; (2) through The supporting mechanism is set on the main engine and the drill rod storage at the back seat, which solves the problem of insufficient supporting force when the drilling rig is used in open-pit coal mines; (3) The mobile pump station makes the moving of the drilling shearer easier and reduces the layout cost of the drilling rig (4) The telescopic boom-type auxiliary transportation device makes it easier to assemble and disassemble the drill pipe mechanism, and it can also complete the adjustment and installation of other components of the mobile drilling shearer, reducing the input cost of other ancillary equipment.
附图说明Description of drawings
图1是露天用钻式采煤机的俯视图;Fig. 1 is the top view of drilling coal mining machine for open pit;
图2是露天用钻式采煤机主机的俯视图;Fig. 2 is the top view of the main engine of drilling shearer for open-pit;
图3是露天用钻式采煤机主机的后视图;Fig. 3 is the rear view of the main engine of drilling shearer for open-pit;
图4是移动泵站的侧视图;Fig. 4 is a side view of the mobile pumping station;
图5是伸缩吊臂式辅助运输装置的主视图。Fig. 5 is a front view of the telescopic boom type auxiliary transportation device.
具体实施方式:Detailed ways:
下面结合附图对本发明做更进一步的解释。The present invention will be further explained below in conjunction with the accompanying drawings.
如图1至5所示,本发明的露天用钻式采煤机包括发电机组1、移动泵站2、主机3、后座钻杆库4、伸缩吊臂式辅助运输装置5和主钻杆库6。As shown in Figures 1 to 5, the open-pit coal mining machine of the present invention includes a generator set 1, a mobile pump station 2, a main engine 3, a rear seat drill rod warehouse 4, a telescopic boom type auxiliary transport device 5 and a main drill rod library6.
主机3包括两个钻杆驱动马达31,每个钻杆驱动马达31均通过一个钻杆机构连接前传动箱37的输入轴,在前传动箱37的输出轴上设有钻头38,在两个钻杆机构之间设有中间通风管36。钻杆机构由驱动减速器32、中间长钻杆33、双螺旋输送钻杆34和稳定器35组成。Main frame 3 comprises two drill rod drive motors 31, each drill rod drive motor 31 all connects the input shaft of front transmission box 37 by a drill rod mechanism, is provided with
在主机3的尾部设置有后座钻杆库4、后掌锚杆支撑39和辅助后支撑油缸40。后掌锚杆支撑39通过后掌锚杆支撑上座47与主机3连接,后掌锚杆支撑39上设有掌形支撑油缸48和锚杆安装座42,后掌锚杆支撑39的底部设有大量排列整齐的锥形凸起41,锥形凸起41采用强耐磨材料支撑。辅助后支撑油缸40通过后支撑油缸安装座43与后座钻杆库4连接。后座钻杆库4采用固定式钢结构箱体设计,顶部设有防雨材料遮盖,防止因恶劣环境造成钻杆机构老化,在后座钻杆库4上还设有后锚杆安装座44。At the afterbody of the main engine 3, a backseat drilling rod storehouse 4, a rear
钻式采煤机工作时,通过掌形油缸48将后掌锚杆支撑39旋转到所需位置,后掌锚杆支撑39底部的锥形凸起41插入煤层底板,利用锥形凸起41与煤层底板之间的摩擦力形成第一级抵消推进反力;把锚杆45分别安装在锚杆安装座42和后锚杆安装座44上并通过锁紧螺母46锁死,锚杆45底部与煤层底板固定,利用锚杆45对主机3和后座钻杆库4的支撑力形成第二级抵消推进反力;由于后座钻杆库4装有钻杆机构,自身较重,所以通过辅助后支撑油缸40和后座钻杆库4就可以起到支撑主机3,防止主机3移动的作用,进而形成第三级抵消推进反力。通过形成的这三级抵消推进反力,解决了钻式采煤机在露天煤矿使用时支撑力不够的问题。When the drilling shearer works, the rear
移动泵站2和主钻杆库6分别设置在主机3的两侧。移动泵站2包括一台大功率电机21,大功率电机21的输入端连接发电机组1,大功率电机21的输出端通过分动器22分别连接左钻杆驱动泵23与右钻杆驱动泵24和辅助泵25,左钻杆驱动泵23与右钻杆驱动泵24分别为两个钻杆驱动马达31提供动力。移动泵站2的底部设有左行走履带26和右行走履带27,这样不仅使移动泵站2的自身移动更加的简便,同时还可以通过提供的左行走履带26和右行走履带27的牵引力来拖动整个钻式采煤机移动,使得钻式采煤机的移机更加简便,降低了钻式采煤机的布置成本。The mobile pump station 2 and the main drill rod storage 6 are respectively arranged on both sides of the main engine 3 . The mobile pump station 2 includes a high-
与后座钻杆库4相同,主钻杆库6也采用固定式钢结构箱体设计,顶部设有防雨材料遮盖。伸缩吊臂式辅助运输装置5固定在主钻杆库6上。伸缩吊臂式辅助运输装置5包括旋转支撑平台54和三级伸缩吊臂52,三级伸缩吊臂52的一端通过卷扬马达51与旋转支撑平台54连接,三级伸缩吊臂52的另一端设有吊装架55,三级伸缩吊臂52的中部设有调节油缸53。缩吊臂式辅助运输装置5不仅可以完成钻杆机构的装卸作业,还可完成移动钻式采煤机其他部件调装作业,降低其他附属设备的投入成本。Same as the backseat drill rod storage 4, the main drill rod storage 6 also adopts a fixed steel structure box design, and the top is covered with a rainproof material. The telescopic boom type auxiliary transportation device 5 is fixed on the main drill rod storehouse 6 . The telescopic boom type auxiliary transportation device 5 includes a
以上所述仅是本发明的优选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下,还可以做出若干改进和润饰,这些改进和润饰也应视为本发明的保护范围。The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310027534.9A CN103075153B (en) | 2013-01-24 | 2013-01-24 | Drilling type coal mining machine for open air |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201310027534.9A CN103075153B (en) | 2013-01-24 | 2013-01-24 | Drilling type coal mining machine for open air |
Publications (2)
Publication Number | Publication Date |
---|---|
CN103075153A true CN103075153A (en) | 2013-05-01 |
CN103075153B CN103075153B (en) | 2015-03-04 |
Family
ID=48151834
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201310027534.9A Expired - Fee Related CN103075153B (en) | 2013-01-24 | 2013-01-24 | Drilling type coal mining machine for open air |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103075153B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104074516A (en) * | 2014-06-23 | 2014-10-01 | 中国矿业大学 | Filling drill bit for drilling type coal mining machine |
CN105209716A (en) * | 2013-05-13 | 2015-12-30 | 卡特彼勒环球矿业欧洲有限公司 | Milling device |
CN107642337A (en) * | 2017-11-06 | 2018-01-30 | 中国矿业大学 | A kind of machine integrated drilling rod of twin tip drill formula coal mining |
CN108590660A (en) * | 2018-05-04 | 2018-09-28 | 太原科技大学 | A kind of outdoor highwall coal mining transport device and its fast transfer working face method |
CN111577168A (en) * | 2020-05-11 | 2020-08-25 | 山东科技大学 | Automatic transferring, loading and unloading system for drill rods of hydraulic coal mine drill carriage and working method |
CN112127891A (en) * | 2020-09-15 | 2020-12-25 | 中国煤炭科工集团太原研究院有限公司 | Edge coal mining protection device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2481688Y (en) * | 2001-06-27 | 2002-03-13 | 石家庄煤矿机械有限责任公司 | Crane mounted on van |
CN201502392U (en) * | 2009-09-28 | 2010-06-09 | 刘红 | Automatic loading device of hydraulic bracket |
DE102008008260B4 (en) * | 2008-02-08 | 2010-09-09 | Wirtgen Gmbh | Control of a mining machine and mining machine |
CN202117670U (en) * | 2011-04-21 | 2012-01-18 | 江苏中机矿山设备有限公司 | Self-traveling lifting fully-hydraulic coal auger |
CN203066963U (en) * | 2013-01-24 | 2013-07-17 | 中国矿业大学 | Drilling type coal mining machine for open air |
-
2013
- 2013-01-24 CN CN201310027534.9A patent/CN103075153B/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2481688Y (en) * | 2001-06-27 | 2002-03-13 | 石家庄煤矿机械有限责任公司 | Crane mounted on van |
DE102008008260B4 (en) * | 2008-02-08 | 2010-09-09 | Wirtgen Gmbh | Control of a mining machine and mining machine |
CN201502392U (en) * | 2009-09-28 | 2010-06-09 | 刘红 | Automatic loading device of hydraulic bracket |
CN202117670U (en) * | 2011-04-21 | 2012-01-18 | 江苏中机矿山设备有限公司 | Self-traveling lifting fully-hydraulic coal auger |
CN203066963U (en) * | 2013-01-24 | 2013-07-17 | 中国矿业大学 | Drilling type coal mining machine for open air |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105209716A (en) * | 2013-05-13 | 2015-12-30 | 卡特彼勒环球矿业欧洲有限公司 | Milling device |
US10053982B2 (en) | 2013-05-13 | 2018-08-21 | Caterpillar Global Mining Europe Gmbh | Milling device |
CN104074516A (en) * | 2014-06-23 | 2014-10-01 | 中国矿业大学 | Filling drill bit for drilling type coal mining machine |
CN107642337A (en) * | 2017-11-06 | 2018-01-30 | 中国矿业大学 | A kind of machine integrated drilling rod of twin tip drill formula coal mining |
CN107642337B (en) * | 2017-11-06 | 2019-02-19 | 中国矿业大学 | An integrated drill pipe of a double-head drilling shearer |
CN108590660A (en) * | 2018-05-04 | 2018-09-28 | 太原科技大学 | A kind of outdoor highwall coal mining transport device and its fast transfer working face method |
CN108590660B (en) * | 2018-05-04 | 2020-01-03 | 太原科技大学 | Open-pit side coal mining and transporting device and method for rapidly transferring working face |
CN111577168A (en) * | 2020-05-11 | 2020-08-25 | 山东科技大学 | Automatic transferring, loading and unloading system for drill rods of hydraulic coal mine drill carriage and working method |
CN112127891A (en) * | 2020-09-15 | 2020-12-25 | 中国煤炭科工集团太原研究院有限公司 | Edge coal mining protection device |
Also Published As
Publication number | Publication date |
---|---|
CN103075153B (en) | 2015-03-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103075153B (en) | Drilling type coal mining machine for open air | |
CN104564050B (en) | Equipment for heading and anchoring parallel operation construction | |
US9995086B2 (en) | Center-pillared full-face shaft drilling machine | |
WO2018228217A1 (en) | Complementary transportation and support system used after rapid excavation | |
CN102787847B (en) | Roadway tunneling machine | |
CN104131829A (en) | Method for removing hydraulic supports for solid filling coal mining | |
CN103993879A (en) | Boom-type roadheader mounted tunneling anchor-along drilling integrated drilling machine | |
CN205503122U (en) | Chisel dress anchor all -in -one | |
CN107060795A (en) | A kind of underground mine TBM assembly construction methods | |
CN104747201A (en) | Rapid drivage-anchoring integrated equipment for coal road under instable surrounding rock condition | |
CN101975077A (en) | High-outburst coal mine coal roadway drilling-loading-bolting integrated machine | |
CN201794610U (en) | Drilling, loading, anchoring, supporting and transporting integrated machine in high outburst mine coal drift | |
CN106640158A (en) | Hard rock heading equipment | |
CN104564070B (en) | A kind of continuous miner short-walling working face equipment selection method | |
CN203347686U (en) | Drilling machine for roadways | |
CN203335072U (en) | Multifunctional comprehensive hydraulic drill loader | |
CN102561433A (en) | Drilling, crushing, digging and loading integrated machine for all-hydraulic tunneling | |
CN201794609U (en) | Drilling, loading and supporting all-in-one machine for coal roadway of high outburst coal mine | |
CN104948109A (en) | Suspension type omni-directional anchor rod drill carriage | |
CN206174982U (en) | Colliery is self -advancing device in pit | |
CN103982195A (en) | Full-face tunnel boring machine | |
CN203066963U (en) | Drilling type coal mining machine for open air | |
CN104500131A (en) | Transportation system and transportation method for deslagging in inclined shaft construction | |
CN114893199A (en) | A dig anchor all-in-one and dig anchor system for high gas mine | |
CN204327183U (en) | A kind of transportation system of slagging tap for slope construction |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C53 | Correction of patent of invention or patent application | ||
CB02 | Change of applicant information |
Address after: 221008 Research Institute, China University of Mining and Technology, Xuzhou University, Jiangsu, China, Applicant after: China University of Mining & Technology Address before: 221008 China University of Mining and Technology Research Institute, 1 University Road, Jiangsu, Nanjing Applicant before: China University of Mining & Technology |
|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20160124 |
|
EXPY | Termination of patent right or utility model |