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151.发明申请公开(公告)号：US20220251954A1
公开(公告)日：2022-08-11
申请号：US17585923
申请日：2022-01-27
Inventor： Yinli BI , Suping PENG
IPC: E21C41/32
Abstract: An ecological reconstructed sponge structure of a strip mine dump includes a three-layered sponge ecological structure arranged on a groundmass layer of the dump. From bottom to top, the three-layer sponge ecological structure comprises a water-resisting layer, a water-containing layer and a topsoil ecological layer. A thickness of the water-resisting layer is 100˜200 cm, a permeability coefficient of the water-resisting layer is 0.35˜0.7 m/d, and a degree of compaction is 1200˜1400 KPa. A thickness of the water-containing layer is 150˜250 cm, a permeability coefficient of the water-containing layer is 10˜20 m/d, and a degree of compaction is 800˜900 KPa. A thickness of the topsoil ecological layer is 40˜60 cm. Soil layer thicknesses and water content may be monitored through a ground penetrating radar.
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公开(公告)号：US20220248597A1
公开(公告)日：2022-08-11
申请号：US17586056
申请日：2022-01-27
Applicant: Xi'an University of Science and Technology , China University of Mining and Technology (Beijing)
Inventor： Yinli BI , Shaopeng MA , Yakun GAO , Longjie ZHANG , Huili ZHOU
Abstract: An aerial seeding bioremediation method for a coal mining subsidence area. The method includes obtaining a topographic map of the coal mining subsidence area; grading the topographic map in terms of ground slopes; determining seeding coefficients of aerial seeding operation according to a grading result of the ground slopes and ground coverage rates of the coal mining subsidence area; determining height adjustment parameters during unmanned aerial vehicle, UAV, aerial seeding; and performing, by a UVA, the aerial seeding operation according the grading result of the ground slopes, the seeding coefficients of the aerial seeding operation, and the height adjustment parameters. A slop grading technical standard of aerial seeding determined by the method of the present disclosure is applicable to complex topography of the coal mining subsidence area and helps with safety of the UVA.
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公开(公告)号：US20220176411A1
公开(公告)日：2022-06-09
申请号：US17598890
申请日：2020-02-29
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Yuemin ZHAO , Jesse ZHU , Chenyang ZHOU , Zhijie FU , Zhenfu LUO , Chenlong DUAN
Abstract: Provided is a gas-solid fluidized bed dry beneficiation process using a beneficiation density gradient, including: in a dry beneficiation system of a gas-solid fluidized bed, selecting coarse particles and fine particles; placing the coarse particles at a bottom of the dry beneficiation system, and placing the fine particles above the coarse particles, wherein the coarse particles and the fine particles are separated under an initial condition; under an effect of a gas flow, the coarse particles and the fine particles being fluidized to form a high-density beneficiation region and a low-density beneficiation region, respectively, and the coarse particles and the fine particles being mixed at a contact interface to form an intermediate-density beneficiation region; and feeding minerals to be beneficiated from an upper portion of the dry beneficiation system to pass through the low-density beneficiation region, the intermediate-density beneficiation region, and the high-density beneficiation region in sequence.
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公开(公告)号：US20220144554A1
公开(公告)日：2022-05-12
申请号：US17422756
申请日：2020-04-21
Applicant: China University of Mining and Technology
Inventor： Shaoyi XU , Zhencai ZHU , Wei LI , Yuqiao WANG , Fangfang XING , Hongyu XUE , Qiang PENG , Feng DONG , Guang CHEN
Abstract: Disclosed is a device and method for distributed detection of straightness of a working face of a scraper conveyor based on optical fiber sensing. The device includes a broadband light source, a first optical fiber circulator array, a second optical fiber circulator array, a collimator array, a reflecting film array, a third optical fiber circulator array, and an optical path analyzer. During transmission of light emitted from the broadband light source, the light with different wavelengths is separated via several optical gratings etched on a single-mode optical fiber (SMF), and reaches reflecting films adhered to the working face of the scraper conveyor through first optical fiber circulators, second optical fiber circulators, and collimators. The light with the different wavelengths is then reflected back from the reflecting films, enters the SMF through third optical fiber circulators, and finally enters the optical path analyzer.
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公开(公告)号：US11305946B2
公开(公告)日：2022-04-19
申请号：US17266628
申请日：2020-04-10
Inventor： Gang Shen , Zhencai Zhu , Kaiyu Dai , Yu Tang , Xiang Li , Yuxing Peng , Hao Lu , Guohua Cao , Gongbo Zhou , Wei Li , Fan Jiang
Abstract: The present invention discloses a drive system of a scraper conveyor and a control method. The drive system includes a nose sprocket, a tail sprocket, a nose sprocket drive mechanism, and a tail sprocket drive mechanism, where the nose sprocket drive mechanism is a hydraulic motor I, and the tail sprocket drive mechanism is a hydraulic motor II; and a hydraulic system that drives the hydraulic motor I and a hydraulic system that drives the hydraulic motor II include same hydraulic elements, and both include a three-position four-way solenoid directional valve, a two-position two-way solenoid directional valve, a two-position three-way solenoid directional valve, an accumulator, and an oil supplement valve group. The present invention is applicable to rapid starting and stopping of the scraper conveyor in a heavy load status while adjusting chain tension in real time, thereby resolving a power imbalance problem in a dual-drive system, and has a simple structure and a long service life.
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Patent Agency Ranking
156.发明授权公开(公告)号：US11280195B2
公开(公告)日：2022-03-22
申请号：US16624541
申请日：2018-10-29
Applicant: China University of Mining and Technology
Inventor： Nong Zhang , Zhengzheng Xie , Junyao Zhou , Qun Wei
Abstract: A single-anchor centrally grouted full-length anchored steel wire bundle and a supporting method thereof are described herein. The steel wire bundle consists of parallel steel wires and a central pipe, wherein multiple strands of parallel steel wires are arranged around the central pipe, the central pipe is provided with a slurry output bracket which divides the parallel steel wires into a front part and a rear part, the front part is provided with large stirring jackets, and the rear part is provided with a threaded casing on its tail end. After the coal is cut by a tunneling machine and a roadway is formed, the steel wire bundle is anchored at the ends, and the roadway tunneling speed is increased; central grouting is carried out for the steel wire bundle so as to anchor the steel wire bundle in full length and ensure long-time stability of the roadway.
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公开(公告)号：US11215046B2
公开(公告)日：2022-01-04
申请号：US17043691
申请日：2019-11-11
Applicant: China University of Mining and Technology
Inventor： Gongbo Zhou , Chaoquan Tang , Zhencai Zhu , Hongwei Tang , Zhenzhi He , Gang Zhang , Wei Li , Fan Jiang
Abstract: Disclosed are a wellbore inspection system and method for an ultra-deep vertical shaft. The wellbore inspection system includes a wire rope moving system, inspection robots, a visual image acquisition system, a wireless communication module, a central control system, and an image post-processing system of an upper computer. The wire rope moving system includes a surface wire rope guide rail, an underground wire rope guide rail, a surface wire rope moving device, an underground wire rope moving device, and a wire rope. The visual image acquisition system includes explosion-proof cameras. After image information acquired by the explosion-proof cameras is processed by a lower computer, the processed image is transmitted by a wireless image transmission module to the image post-processing system of the upper computer. The central control system is connected to the inspection robots and the wire rope moving system, and the inspection robots are connected to the central control system.
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158.发明申请公开(公告)号：US20210404337A1
公开(公告)日：2021-12-30
申请号：US16616603
申请日：2018-11-02
Applicant: China University of Mining and Technology
Inventor： Nong ZHANG , Zhengzheng XIE , Junyao ZHOU , Yanpei AN
Abstract: A synergistic mining method for underground mining, separation and filling for a close distance coal seam group is applicable to the mining engineering field. Full-mechanized caving mining is carried out for a close distance coal seam group, an underground coal gangue separation system and a filling face are designed according to the yield of gangue in the production process; the gangue produced in the mining process is transported centrally into an underground coal gangue separation chamber, and the separated gangue is transported to the filling face for filling and mining; the gangue produced at the filling face is transported back to the filling face for backfilling after underground washing separation. The method separates nearby and filling at selected locations, reduces the damage and disturbance to the underground rock mass that may be caused by a conventional mining method, and solves problems in treatment of strong dynamic pressure in advance.
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159.发明申请公开(公告)号：US20210390736A1
公开(公告)日：2021-12-16
申请号：US17313419
申请日：2021-05-06
Inventor： Yi LIU
Abstract: The present disclosure discloses an intelligent position sensing system based on spatial three-dimensional model image matching, which realizes three-dimensional precise positioning and target orientation positioning of closed spaces, such as a coal mine. The position sensing system includes a three-dimensional GIS server, a position matching server, a wireless camera, and a wireless access device. Position sensing is realized by comparing an image collected by the wireless camera with a two-dimensional image generated by rendering. The disclosure positions a target without carrying a special wireless positioning card, and can realize three-dimensional precise positioning, including target orientation, by only carrying a camera with a wireless communication function in combination with a wireless positioning technology, a three-dimensional GIS technology, and a digital image processing technology, which can be widely applied to the field of precise positioning of confined spaces, such as factories, coal mines, and subways, and can be widely applied and promoted.
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公开(公告)号：US11199484B2
公开(公告)日：2021-12-14
申请号：US16487425
申请日：2018-09-13
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Nong Zhang , Zhengzheng Xie , Junyao Zhou , Yuxin Yuan , Xinyue Li
IPC: G01N3/10
Abstract: A device and method for testing the working performance of an anchor rod cable by simulating stratum fracture and separation on the basis of electromagnetic action, applicable to the technical field of testing working performance of anchor rod cables by simulating a tunnel field. The device comprises a top base (1) and a bottom base (2); a plurality of hydraulic vertical columns (3) are provided between the top base (1) and the bottom base (2); the plurality of hydraulic vertical columns (3) are provided thereon with clamping devices, and an electromagnetic block (9) is disposed between two groups of drawing block-shaped clamp holders (4). Using the attraction and repulsion forces of the electromagnetic block (9), the laminated electromagnetic block generates the separating or fracturing effect in a loading process so as to simulate the interaction between surrounding rock and an anchor rod cable test piece (8) in the field and accurately record various performance parameters of a working status of the anchor rod cable test piece (8), thereby providing positive guidance for directing field work.
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