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公开(公告)号：US20210155868A1
公开(公告)日：2021-05-27
申请号：US17100840
申请日：2020-11-21
Applicant: SHANXI COKING COAL GROUP CO., LTD. , CHINA UNIVERSITY OF MINING AND TECHNOLOGY , JIANGSU HYDROCARBON CLEAN ENERGY TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
Inventor： Jinfang LIU , Xiahui GUI , Yin PENG , Linsheng GONG , Tiezhu ZHAO , Pengde ZHANG , Zijian MA
Abstract: An experimental method for coal desulfurization and deashing using permeation and solvating power of a supercritical fluid includes the following steps. The coal sample is ground and loaded into an extraction kettle with a cover. An inlet valve and an outlet valve of the extraction kettle are opened to circulate the supercritical CO2 fluid in the extraction kettle. The extraction kettle is sealed. By adjusting a temperature and a pressure in the extraction kettle, the supercritical CO2 fluid is kept at its critical point and permeates the coal sample to dissolve organic sulfur, inorganic sulfur and ash in the coal sample. The extraction kettle is depressurized, and the temperature in the extraction kettle is adjusted to gasify the supercritical CO2 fluid. The organic sulfur, the inorganic sulfur and part of the ash are separated from the supercritical CO2 fluid and precipitated at a bottom of the extraction kettle.
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公开(公告)号：US11002051B2
公开(公告)日：2021-05-11
申请号：US16478855
申请日：2018-01-06
Applicant: JIANGSU VOCATIONAL INSTITUTE OF ARCHITECTURAL TECHNOLOGY , CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Xiang Ji , Hong Zhang , Yuan Ji , Xiangfeng Li , Bingke Xiao , Guohua Tian , Wei Liu , Dong Wang , Zhidong Chen , Yaxi Gong , Xinyu Liu
Abstract: A space-saving lengthwise and widthwise movable panel system capable of being fully opened belongs to the field of smart building technology and includes a lengthwise panel moving compartment, a panel storage space and a panel control module. The movable panel system can be used as a door and/or window system. All of the panels of the system can be entirely stored in the panel storage space and when storing all of the panels entirely in the panel storage space, the panel system is fully open to allow full lengthwise access to a space. The panel storage space may be located in a wall or outside the room to hide the stacked panels. By controlling the operation of the moving system, the panels are effectively connected to one another in an aligned manner and can move automatically, so the space-saving movable panel system is convenient to use, and space-saving.
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公开(公告)号：US10988347B2
公开(公告)日：2021-04-27
申请号：US16955787
申请日：2019-09-04
Applicant: China University of Mining and Technology , XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
Inventor： Yuxing Peng , Zhencai Zhu , Gongbo Zhou , Changhua Hu , Qingyong Du , Hao Lu , Guohua Cao , Songyong Liu , Gang Shen
Abstract: A large-tonnage coal dropping buffer skip for a mine is disclosed. A loading skip box (14) is installed at the top of a large-tonnage skip (12), a coal dropping buffer device (13) is arranged on the inner sidewall of the large-tonnage skip (12), and the coal dropping buffer device (13) includes: a frame (1) fixedly connected with the inner sidewall of the large-tonnage skip (12); a lining plate guide frame (6) connected with the frame (1) through shock absorbers (2), guide sliding grooves being formed in the lining plate guide frame (6); a lining plate support (4) slidably nested in the guide sliding grooves in the lining plate guide frame (6), hoisting lugs (9) for hoisting being arranged at the top end of the lining plate support (4); and a lining plate (5) detachably connected with the lining plate support (4) through fasteners (7).
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公开(公告)号：US20210078165A1
公开(公告)日：2021-03-18
申请号：US16095717
申请日：2017-06-23
Applicant: China University of Mining and Technology
Inventor： Chaoquan TANG , Gongbo ZHOU , Eryi HU , Hua ZHU , Bi MA , Xin SHU , Jian ZHAO , Xin CHEN , Chusheng LIU
Abstract: The invention relates to a serpentine inspection robot mechanism for lifting cage guide driven by magnetic wheels, comprising a magnetic wheel drive part and a pitching yawing part, wherein the magnetic wheel drive part comprises a worm and gear transmission mechanism (I) and a magnetic wheel driving mechanism (II), and the pitching yawing part comprises a pitching yawing mechanism (III). Magnetic wheels are driven by the worm and gear transmission mechanism (I) and the magnetic wheel driving mechanism (II), while the pitching and yawing control of the robot are realized by the pitching yawing mechanism (III). The serpentine robot driven by the magnetic wheels (22) resolves the problems that the efficiency of ordinary serpentine robot is low, and it is difficult for the simple-wheel-type robot to span the large gap and to reach some concealed corners, with the cage guide of the lifting machine sucked by the magnetic wheels (22).
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公开(公告)号：US10947842B2
公开(公告)日：2021-03-16
申请号：US16615013
申请日：2017-11-27
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Enyuan Wang , Zhonghui Li , Jianchun Ou , Liming Qiu
IPC: E21B49/00 , E21B47/07 , E21B47/024 , E21B47/06 , E21B47/10 , E21B47/14 , E21B49/08 , G01V1/46 , G01V1/52 , E21B7/00 , E21B33/124 , E21B33/127 , G01V3/38 , G01V3/26 , G01V1/50 , G01V11/00 , E21B47/02 , E21B47/00
Abstract: A measurement-while-drilling method and device assesses outburst risk and evaluates gas drainage performance of a coal seam. The device includes a compartment, a pressure sensor, a temperature sensor, a flow sensor, an electromagnetic sensor, an acoustic sensor, a wave velocity measurement module, a monitoring and control module, a power supply and a communication interface. These are installed between a drill bit and an inclinometer or a first drill pipe. Measurements are performed while drilling to obtain a real time gas parameter, lithologic and coal seam information, for on-site assessment of outburst risk. During drill bit replacement, gas pressure, temperature, flow velocity, wave velocity, electromagnetic radiation, and an acoustic signal are recorded in real time, to calculate stress of the coal seam and coal seam outburst risk. On-site measurement is done while drilling without sampling and can use multiple parameters to perform synchronous measurement to obtain a comprehensive evaluation.
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Patent Agency Ranking
176.发明授权公开(公告)号：US10934817B2
公开(公告)日：2021-03-02
申请号：US16960023
申请日：2018-10-18
Inventor： Shuxun Sang , Shiqi Liu , Liwen Cao , Xiaozhi Zhou , Haiwen Wang , Huihu Liu , Zicheng Li , Huazhou Huang , Changjiang Liu , Hongjie Xu , Ran Wang , Jinlong Jia , Shuyun Zhu
Abstract: A system for extracting gas from a tectonically-deformed coal seam in-situ by depressurizing a horizontal well cavity is provided. A horizontal well is constructed by a horizontal well drilling and reaming subsystem and adjoins a vertical well to form a U-shaped well, and a horizontal section of the horizontal well is reamed to enlarge hole diameter. A horizontal well hole-collapse cavity-construction depressurization excitation subsystem performs pressure-pulse excitation and stress release on the horizontal well of tectonically-deformed coal bed methane, and hydraulically displaces a coal-liquid-gas mixture such that the mixture is conveyed towards a vertical well section along a depressurizing space. A product lifting subsystem further pulverizes the coal and lifts the mixture towards a wellhead of a vertical well. A gas-liquid-solid separation subsystem separates the coal, liquid and gas. A monitoring and control subsystem detects and controls the operation conditions and the execution processes of technical equipment in real time.
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公开(公告)号：US10907474B2
公开(公告)日：2021-02-02
申请号：US15768219
申请日：2017-06-07
Applicant: China University of Mining and Technology
Inventor： Nong Zhang , Zhengzheng Xie , Changliang Han
Abstract: A reaming and self-rotating anchor rod includes a rod body, a drill bit, a connecting member, a tray, and a nut. One end the connecting member is snap-fixed to the tail part of the rod body, the other end of the connecting member is connected to an anchor rod bolter. The rod body has an annular protrusion at its middle part to block powder so that the powder fills up the clearance between the rod body and the coal mass. The drill bit has female threads and can be screwed into the front part of the rod body, and the drill bit has baffle pawls and spiral grooves on its side surface.
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178.发明授权公开(公告)号：US10895153B2
公开(公告)日：2021-01-19
申请号：US16631169
申请日：2018-09-14
Inventor： Hongxiang Jiang , Zhengwei Hu , Songyong Liu
Abstract: A vibrating type hard rock cutting mechanism with a function of directional high-speed abrasive jet advanced slitting includes a disc-shaped hob, a cutting main shaft and a valve plate. When the vibrating type hard rock cutting mechanism works, an outlet of a high-pressure abrasive jet generating system is communicated to a cutting mechanism abrasive jet inlet. An abrasive jet enters an abrasive jet nozzle through flow channels in the valve plate, the cutting main shaft and the disc-shaped hob and forms a directional high-speed abrasive jet. The cutting main shaft is directly driven to rotate by an axial permanent magnet motor. The cutting mechanism enables the disc-shaped hob to vibrate under the action of a vibration motor. A macro crack is formed on a rock mass by rotating the abrasive jet. The rotating disc-shaped hob can be wedged into the formed crack in a vibration manner by swinging the cutting mechanism.
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公开(公告)号：US20200378258A1
公开(公告)日：2020-12-03
申请号：US16609738
申请日：2019-01-25
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Wenping LI , Weichi CHEN , Zhi YANG , Qiqing WANG , Kaifang FAN
Abstract: A method for classifying a phreatic leakage disaster level in shallow coal seam mining includes the following steps: S1. arranging a monitoring hole in a coal mine working face and burying a telemetering water level gauge to perform water level monitoring; S2. monitoring a ground elevation, calculating a ground subsidence amount, and collecting drilling footage information; S3. plotting variation relationship curves of drilling footage and phreatic water level as well as drilling footage and ground subsidence according to monitored information, respectively; and S4. comparing the curves with a no-leakage graph, a slight-leakage graph, and a heavy-leakage graph, and determining a leakage level; and S5. further classifying a studied area as an environmental disaster area or an environmentally friendly area.
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180.发明申请公开(公告)号：US20200340335A1
公开(公告)日：2020-10-29
申请号：US16960023
申请日：2018-10-18
Inventor： Shuxun SANG , Shiqi LIU , Liwen CAO , Xiaozhi ZHOU , Haiwen WANG , Huihu LIU , Zicheng LI , Huazhou HUANG , Changjiang LIU , Hongjie XU , Ran WANG , Jinlong JIA , Shuyun ZHU
Abstract: A system for extracting gas from a tectonically-deformed coal seam in-situ by depressurizing a horizontal well cavity is provided. A horizontal well is constructed by a horizontal well drilling and reaming subsystem and adjoins a vertical well to form a U-shaped well, and a horizontal section of the horizontal well is reamed to enlarge hole diameter. A horizontal well hole-collapse cavity-construction depressurization excitation subsystem performs pressure-pulse excitation and stress release on the horizontal well of tectonically-deformed coal bed methane, and hydraulically displaces a coal-liquid-gas mixture such that the mixture is conveyed towards a vertical well section along a depressurizing space. A product lifting subsystem further pulverizes the coal and lifts the mixture towards a wellhead of a vertical well. A gas-liquid-solid separation subsystem separates the coal, liquid and gas. A monitoring and control subsystem detects and controls the operation conditions and the execution processes of technical equipment in real time.
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