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公开(公告)号：US20210003490A1
公开(公告)日：2021-01-07
申请号：US16976163
申请日：2019-12-19
Inventor： Tongbin ZHAO , Chunlin LI , Minglu XING , Yunliang TAN , Chen ZHAO , Zhi WANG , Xiaoliang LI , Fenghai YU , Jinglong JIA
Abstract: The present disclosure provides a device and a method for an anchor bolt (cable) supporting structure test and an anchoring system performance comprehensive experiment, and relates to the technical field of anchoring tests. The device includes a gantry, a loading mechanism, a test mechanism and a test piece, wherein the gantry includes a base and an operation platform; the loading mechanism includes a loading frame, a chuck, a surrounding rock force loading oil cylinder and a hollow drawing oil cylinder; the test mechanism includes a load, a displacement and an acoustic emission and other monitoring mechanisms, and the test piece includes a rock test piece, an anchor bolt (cable), an anchor net, and the like; the loading mechanism and the hollow drawing oil cylinder are disposed on the base, and a torsion motor and an anchor bolt drill are disposed on the operation platform, wherein the rock test piece is placed between bearing plates, one end of the anchor bolt (cable) is fixed by the chuck or anchored into the rock test piece, and the other end of the anchor bolt (cable) passes through the hollow drawing oil cylinder. The device is capable of not only testing mechanical properties of the anchor bolt (cable) and an anchoring member, but also realizing simulation of a stress environment of “five sides loaded and one side non-loaded” so as to perform a surrounding rock drilling response or anchoring system performance comprehensive experiment.
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公开(公告)号：US10883320B2
公开(公告)日：2021-01-05
申请号：US16624984
申请日：2018-07-13
Inventor： Wei Lu , Qianting Hu , Guansheng Qi , Weimin Cheng , Jinliang Li , Dong Wang , Zhen Liu
Abstract: A ground wellhole dedicated protective pipe, disposed inside a ground wellhole for gas extraction of a mining-induced area, includes a casing, and a chain inside the casing and slidable relative to the casing. The chain includes a chain formed by a plurality of chain drums through serial connection, and a detachable connecting piece connecting between chains. A plurality of air holes is opened in the chain drum along an axial direction of the chain drum.
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公开(公告)号：US10801475B2
公开(公告)日：2020-10-13
申请号：US16345673
申请日：2017-11-10
Inventor： Chenglong Wang , Zhiwei Qiu , Qingliang Zeng , Meng Chen , Zhihai Liu , Shumeng Ma , Yue Wang
IPC: F03G1/00 , F03G1/02 , F03G1/08 , F15B1/24 , H02K7/02 , H02K7/18 , H02K7/116 , H02K7/14 , F03G1/06 , F16H48/06
Abstract: A multi-buffer energy accumulation apparatus comprises: an energy storage cylinder, an oil tank, a first scroll spring mechanism, a second scroll spring mechanism, a hydraulic motor, differential planetary train of gearings, and a generator; wherein the energy storage cylinder comprises a hermetically sealed cylinder body, one end of the hermetically sealed cylinder body being provided with an elastic mobile device, the other end thereof being provided with an energy transmission device, and hydraulic oil is filled in the hermetically sealed cylinder body between the elastic mobile device and the energy transmission device; the hermetically sealed cylinder body, the hydraulic motor, and the oil tank are connected via an oil circuit to form a hydraulic loop; the energy transmission device is connected with the first scroll mechanism; the hydraulic motor is connected with the second scroll spring mechanism.
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84.发明授权公开(公告)号：US10774591B2
公开(公告)日：2020-09-15
申请号：US16616790
申请日：2018-12-25
Inventor： Gang Wang , Weimin Cheng , Xiaohua Zhou , Lulu Sun , Chenghao Jiang , Zhen Liu
IPC: E21B7/18 , E21B33/127 , E21B43/114 , E21B43/26 , E21C37/12
Abstract: Provided are a drill-power-based directional hydraulic fracturing system for downhole quick slotting and a method thereof. The directional hydraulic fracturing system includes a water injection pump, a high pressure rubber pipe arranged on the water injection pump is in communication with a drill, a dedicated sealing drill rod for hydraulic fracturing is arranged on the drill, a front segment of the drill rod may be connected with a directional borehole sealer through threads and a sealing ring is provided at the threaded connection. The main steps include drilling, slotting, borehole sealing and fracturing. Firstly, a drill-cut integrated tool is installed at a front end of the drill rod. After drilling is completed, hydraulic slotting, permeability improvement and pressure relief are performed without changing a drill bit. After slotting is completed, the drill bit is retreated, and the directional borehole sealer is installed and pushed to a predetermined position for efficiency sealing. After sealing is completed, high pressure water injection fracturing is performed to increase fissure density and scope with “high pressure penetration” as main. Thus, water injection for the coal seam with high ground pressure and low porosity is realized. In this way, coal bumps are effectively prevented, the powder dust concentration is reduced and the disasters such as gas and fire are prevented.
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公开(公告)号：US10691098B2
公开(公告)日：2020-06-23
申请号：US16483995
申请日：2018-05-29
Inventor： Shun Jia , Qinghe Yuan
IPC: G05B19/19 , G05B19/4063 , G05B23/02 , B23Q3/155 , G06F30/00
Abstract: A method of accurately predicting energy consumption of an automatic tool change process is described. Automatic tool change durations at a plurality of groups of rotary tool position numbers are measured and a calculation model of the automatic tool change duration is obtained. A basic module power of machine is obtained. A basic module energy consumption of machine is obtained by calculation based on the basic module power of machine and the automatic tool change duration. A steady state power of tool changer is obtained. A steady state energy consumption of tool changer is calculated. A transient state energy consumption of tool changer is obtained by accumulating energy consumptions. An energy consumption prediction model of the automatic tool change process is obtained using the obtained basic module energy consumption of machine, the obtained steady state energy consumption of tool changer, and the obtained transient state energy consumption of tool changer.
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Patent Agency Ranking
86.发明申请公开(公告)号：US20200040728A1
公开(公告)日：2020-02-06
申请号：US16484651
申请日：2018-05-11
Inventor： Zhongping GUO , Weizhen LIU , Yong JIAN , Huiqiang DUAN , Hengze YANG , Wenwu XIE
Abstract: Provided is a method of forming a roadway by filling gangue paste during wide roadway excavation of a thick coal seam belonging to the technical field of mining industry. The method comprises: firstly designing a width of a filing strip and a width of a new excavation roadway according to a geological condition of a coal seam; secondly, determining a length of each filling, i.e. a cyclic filling interval, according to an existing excavation technical condition of a mining shaft; when the new excavation roadway is excavated, performing supporting for a roof, a floor and an inner side of a roadway by using a strong bolt and bolt-mesh-cable; then, after the new excavation roadway is excavated for the cyclic filling interval, starting to perform roadway-expanding excavation along an outer side of the roadway; when roadway-expanding excavation is performed, performing temporary supporting for a filling strip and a junction of the filling strip and the new excavation roadway by using a single hydraulic prop in cooperation with a metal articulated roof beam; finally, after roadway-expanding excavation is completed, removing temporary supports and filling the filling strip; afterwards, the above steps are performed alternately. In this way, coal losses caused by reserving coal pillars can be effectively reduced, the impact of the underground pressure during roadway excavation is relieved and the costs of gangue treatment and roadway excavation are lowered.
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公开(公告)号：US20200024944A1
公开(公告)日：2020-01-23
申请号：US16498126
申请日：2018-05-11
Inventor： Zhongping GUO , Wenwu XIE , Haiyan FAN , Huiqiang DUAN , Hengze YANG , Yong JIAN
Abstract: Provided is a method of mining a single steeply-inclined thick coal seam, which belongs to the mining engineering field. The mining method includes: carrying out one transport crossheading along a floor of the coal seam to constitute a production system together with rises on both sides of a district; arranging a top-coal caving hydraulic support along a thickness of the coal seam in the transport crossheading, with a cyclic advance interval being 1.0 m; maintaining one section of return air channel close to a side of a roof that is in a gob and behind the hydraulic support. In a case of mining, caved coals fall on a scraper conveyer and transported through a belt conveyer. Fresh air flow required for a working surface enters the transport crossheading through a district transport crosscut and a track rise, and then enters the return air rise through the return air channel after washing the working surface. A unique return air channel is adopted. The method features advantages such as simple roadway arrangement system, strong adaptability, large yield of working surface, and high safety level.
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88.发明申请公开(公告)号：US20200024925A1
公开(公告)日：2020-01-23
申请号：US16495800
申请日：2019-02-28
Inventor： Yunliang TAN , Xuesheng LIU , Deyuan FAN , Jianguo NING , Qiang XU , Bangyou JIANG , Guangchao ZHANG
Abstract: A reverse rotary sprinkler drilling pipe system with anti-sticking function and its application method. This system comprises the front and rear drilling pipes which are arranged in sequence, a water spraying device, a rotary device. The rear drilling pipe is connected with an external drilling rig. The front and rear drilling pipes are respectively arranged with through holes in an inner axial direction. The water spraying device comprises a first cylinder and a connecting body, and symmetrical multiple groups of water spraying holes are arranged on the inner sidewall of the first cylinder. A limit block is arranged in the upper part of the inner sidewall. The connecting body is disposed with water conveyance hole which is connected with the through hole and the inner part of the first cylinder.
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89.发明申请公开(公告)号：US20190218910A1
公开(公告)日：2019-07-18
申请号：US16319880
申请日：2017-10-31
Inventor： Kegong FAN , Chunyuan JING , Shengming NIU , Deli FAN , Chuanwei ZANG
IPC: E21D11/15
CPC classification number: E21D11/152 , E21D11/14 , E21D11/155 , E21D20/02
Abstract: An asymmetric support structure of entry driven along, gob-side (EDG) under unstable roof in deep mines and construction method thereof. The asymmetric support structure includes roadway roof support structure, a gob-side support structure and a solid coal seam-side support structure. The roadway roof support structure includes a reinforcing wire mesh, a W-section steel strap, high-strength pretensioned bolts, and cable bolts and matching steel straps. The gob-side support structure includes a reinforcing wire mesh, a W-section steel strap, high-strength pretensioned yielding bolts and grouting cable bolts and its matching steel straps. The solid coal seam-side support structure includes a reinforcing wire mesh, a reinforced beam and steel strap pallet subassembly, high-strength pretensioned yielding bolts and cable bolts and its matching steel straps. The roadway roof support structure, gob-side support structure and solid coal seam-side support structure beneficially together form the asymmetric support structure.
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90.发明申请公开(公告)号：US20180108107A1
公开(公告)日：2018-04-19
申请号：US15715367
申请日：2017-09-26
Inventor： Yanjun PENG , Jiawei Yu , Yuanhong Wang , Ruisheng Jia , Xinming Lu
CPC classification number: G06T1/20 , G06F17/30194 , G06T15/005 , G06T15/06 , G06T15/08 , G06T19/00 , G06T2210/41 , G06T2219/024
Abstract: The present invention relates to the technical field of visualization in scientific computing, and specifically discloses a ray casting visualization multi-user interaction processing method based on Hadoop and CUDA. On one hand, the method of the present invention employs the parallel processing capability of Hadoop, MapReduce, and NVIDIA CUDA for accelerated rendering, and, on the other hand, the present invention designs a method to avoid duplicate computation for a multi-user interaction environment, thereby reducing the time consumption of duplicate computation. The method of the present invention realizes the fast operation of each pixel gradient, ray resampling and data synthesis and can accomplish the 3D visualization imaging rapidly and efficiently.
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