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公开(公告)号：US10821477B2
公开(公告)日：2020-11-03
申请号：US15767538
申请日：2017-04-12
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Liang Dong , Yuemin Zhao , Chenlong Duan , Junyu Lu , Bo Zhang
Abstract: A system for separation and drying of moist fine particle coal includes a blast blower, a surge tank, a moisture detection sensor, a control device and two pipelines, wherein the blast blower is communicated with the surge tank; one end of two pipelines which are connected in parallel is communicated with the surge tank, while the other end is communicated with a fluidized bed; a first pipeline includes a first valve, a first flowmeter, an air heater and an electric butterfly valve which are connected in series sequentially, while the second pipeline includes a second valve and a second flowmeter which are connected in series; the moisture detection sensor is arranged in the fluidized bed; and the control device is connected with the blast blower, the first valve, the first flowmeter, the air heater, the second valve, the second flowmeter and the moisture detection sensor.
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72.发明授权公开(公告)号：US10815098B2
公开(公告)日：2020-10-27
申请号：US16304127
申请日：2017-12-27
Applicant: China University of Mining and Technology , XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.
Inventor： Gongbo Zhou , Zhencai Zhu , Wei Li , Yuxing Peng , Guohua Cao , Ping Zhou , Xin Shu , Benliang Hao , Chaoquan Tang , Lin Luo
IPC: B66B7/12 , B66B5/00 , B66B7/06 , G01N21/952
Abstract: A multiple-state health monitoring apparatus for critical components in a hoisting system includes a frame. The frame is a square structure formed by welding a plurality of rectangular steels. A steel wire rope is arranged around a periphery of the square structure. A power system, a friction-and-wear apparatus, a brake-and-wear apparatus, and a tensioning apparatus are sequentially mounted from left to right on a bottom layer of the square structure. A bearing signal collection system, a tension sensor, an excitation apparatus, and a steel-wire-rope image collection system are sequentially mounted from left to right on a top layer of the square structure. The steel wire rope sequentially passes through all the apparatuses or systems and is driven by the power system to perform circling. All the apparatuses or systems are used to monitor an operation status of the steel wire rope.
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公开(公告)号：US10814260B2
公开(公告)日：2020-10-27
申请号：US16349276
申请日：2017-08-25
Applicant: China University of Mining and Technology
Inventor： Beibei Li , Xiumei Liu , Jingjing Wang , Ruirui Li , Yaoda Yue , Jie He , Wei Li
Abstract: The present invention discloses a gas-powder separation three-phase jet flow fire monitor system, including a gas-powder separation three-phase fire monitor head, a filter, a nitrogen pressurization apparatus and a dry powder tank. The dry powder tank is connected to a gas-powder mixture inlet pipe of the gas-powder separation three-phase fire monitor head through a pipeline. A nitrogen outlet pipe of the gas-powder separation three-phase fire monitor head is connected with one end of the nitrogen pressurization apparatus through the filter. The other end of the nitrogen pressurization apparatus is connected with the dry powder tank. The present invention is simple in structure and convenient to use. A cyclone separation apparatus of a dry powder pipeline of the fire monitor may separate nitrogen from conveyed ultrafine dry powder to enable the ultrafine dry powder to be fully mixed with a water-based fire extinguishing agent, thereby reducing an atomization degree of jet flow and enlarging a range of the fire monitor. In addition, the separated nitrogen enters the dry powder tank for recycling after being pressurized by the pressurization apparatus, thereby reducing the fire extinguishing cost.
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公开(公告)号：US10808502B2
公开(公告)日：2020-10-20
申请号：US16485116
申请日：2017-12-27
Applicant: China University of Mining and Technology , Xuzhou Relimap Information Technology Co., Ltd. , Jiangsu Normal University , Southeast University
Inventor： Hui Yang , Li Yang , Gefei Feng , Xiaodong Xu , Yong Qin , Yaqin Sun , Hui Ci , Lifang Xue
Abstract: The present invention discloses a method for optimizing sensor network node location in a geological CO2 storage area. In the method, by analyzing data in a monitoring area, such as geological data, geographical data, and meteorological data, analyzing influence factors of a CO2 leakage event and determining a sensitivity partition, designing different coverage control schemes of monitoring sensor network nodes, or intensively or sparsely arranging sensor monitoring nodes, a coverage network is described and optimally expressed on the basis of Delaunay triangulation. In the method for optimizing sensor network node location in a geological carbon dioxide storage area, the arrangement density of wireless sensor network nodes can be dynamically adjusted according to geological and geographical features of a detection area, and the arrangement optimization of a dynamic monitoring sensor network for coal seam carbon dioxide injection area leakage can be realized. The method reduces node redundancy and communication overheads as much as possible, and has strong network coverage and network connectivity.
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75.发明申请公开(公告)号：US20200318480A1
公开(公告)日：2020-10-08
申请号：US16763426
申请日：2019-02-22
Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGY
Inventor： Nan ZHOU , Hengfeng LIU , Meng LI , Zhongya WU , Jixiong ZHANG
Abstract: A method of recovering a room-and-pillar coal pillar by using external replacement supports. In the recovery of a room-and-pillar coal pillar, a cement material wall is formed by performing pouring around a coal pillar having a width to height ratio of less than 0.6, by means of a single-pillar sack arrangement technique, such that a coal pillar resource may be mined while a wall made from a cement filling material supports an overlying stratum. After mining is complete, a coal pillar goaf region is filled with the cement filling material, and after the cement filling material solidifies and is stable, the single pillar can be recovered.
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Patent Agency Ranking
76.发明申请公开(公告)号：US20200318476A1
公开(公告)日：2020-10-08
申请号：US16757771
申请日：2018-11-12
Applicant: China University of Mining and Technology , XUZHOU OLIVINE GEOSCIENCE & GEOTECH CO., LTD , CHINA UNIVERSITY OF PETROLEUM, EAST CHINA , ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY , WUHAN INSTITUTE OF TECHNOLOGY
Inventor： Shuxun SANG , Haiwen WANG , Xiaozhi ZHOU , Liweng CAO , Shiqi LIU , Huihu LIU , Zicheng LI , Jinlong JIA , Huazhou HUANG , Changjiang LIU , Hongjie XU , Ran WANG , Shuyun ZHU
Abstract: A simulation test system for gas extraction from a tectonically-deformed coal seam in-situ by depressurizing a horizontal well cavity. A coal series stratum structure reconstruction and similar material simulation subsystem simulates a tectonically-deformed coal reservoir. A horizontal well drilling and reaming simulation subsystem constructs a U-shaped well in which a horizontal well adjoins a vertical well, and performs a reaming process on a horizontal section thereof. A horizontal well hole-collapse cavity-construction depressurization excitation simulation subsystem performs pressure-pulse excitation and stress release on the horizontal well, and hydraulically displaces a coal-liquid-gas mixture such that the mixture is conveyed towards a vertical well section. A product lifting simulation subsystem further pulverizes the coal and lifts the mixture. A gas-liquid-solid separation simulation subsystem separates the coal, liquid and gas. A monitoring and control subsystem detects and controls the operation and the execution processes of equipment in real time.
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77.发明授权公开(公告)号：US10795051B2
公开(公告)日：2020-10-06
申请号：US16134297
申请日：2018-09-18
Applicant: WUHAN CHANGSHENG MINE SECURITY TECHNOLOGY LIMITED , CHINA UNIVERSITY OF MINING AND TECHNOLOGY, BEIJING
Inventor： Qiang Wu , Liu Liu , Yifan Zeng , Fengjuan Tao , Chunsheng Liu
Abstract: Disclosed is a three-dimensional digital virtual imaging device for stratigraphic texture of borehole core, wherein the probe depth counting pulley is mounted on the lifting wire frame, the output shaft of the motor is configured to drive the reel to rotate, and one end of the cable is connected to the cable transfer node of the retractable reel, the signal input end of the borehole imaging trajectory measuring probe of the on-site imaging host is electrically connected to one end of the cable through the cable transfer node of the retractable reel, the cable is wound on the retractable reel, a retractable line is controlled by the retractable reel, the cable is extended and retracted on the probe depth counting pulley, the probe depth counting pulley records the length of the retractable line of the cable, the depth feedback signal output end of the depth counting pulley is connected to the depth feedback signal input end of the on-site imaging host, the motor control signal output end of the on-site imaging host is connected to the control signal input end of the motor, and the signal output end of the borehole imaging trajectory measuring probe is connected to the other end of the cable. It can automatically generate borehole video, two-dimensional digital virtual borehole core image and 3D borehole trajectory in real time.
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公开(公告)号：US20200300088A1
公开(公告)日：2020-09-24
申请号：US16088437
申请日：2017-11-02
Applicant: China University of Mining and Technology
Inventor： Qiang ZHANG , Jixiong ZHANG , Zhongya WU , Wenyue QI , Hong YAN , Meng LI
Abstract: Provided is a base mechanism of a single prop capable of being unloaded at reduced pressure, including a base bottom plate and two wedge-shaped support blocks, where one of the wedge-shaped support blocks serves as a fixed wedge-shaped support block and is welded onto the base bottom plate, and the other of the wedge-shaped support blocks serves as a movable wedge-shaped support block and is connected to the fixed wedge-shaped support block by using a screw rod and a nut. The present invention can effectively unload the single prop at reduced pressure or remove the single prop in a contracted manner, is of a simple structure, is convenient to operate, has a good use effect, overcomes the technical problem that it is difficult to unload a single prop at reduced pressure in this technical feature, and is widely applicable in this technical field.
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公开(公告)号：US20200281135A1
公开(公告)日：2020-09-10
申请号：US16340379
申请日：2018-06-25
Inventor： Zhipeng QIU , Tao PENG , Peiyong LIU , Jinxiang ZHANG , Zhencai ZHU , Fan JIANG
Abstract: The present invention provides a telescopic jacking stepwise rollback-type reel sprinkling irrigation machine, including a chassis, a locking-type reel, a sprinkling irrigation apparatus, and a stepwise driving apparatus. A locking channel in a circumferential direction is disposed on the locking-type reel. The stepwise driving apparatus includes a lifting cylinder, an upper caliper, and a lower caliper, and the upper caliper and the lower caliper are clamped to be mounted on the locking channel. Pressurized water is used in the telescopic jacking stepwise rollback-type reel sprinkling irrigation machine to drive the lifting cylinder to realize periodic lifting motion of the piston rod, so as to drive the upper caliper to move up and down to be engaged with the locking channel of the locking-type reel intermittently, thereby driving the locking-type reel to roll back intermittently to automatically reel in a sprinkling irrigation PE hose.
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公开(公告)号：US20200248552A1
公开(公告)日：2020-08-06
申请号：US15768219
申请日：2017-06-07
Applicant: China University of Mining and Technology
Inventor： Nong ZHANG , Zhengzheng XIE
Abstract: The present invention provides a reaming and self-rotating anchor rod and a construction method using the reaming and self-rotating anchor rod, which are applicable to supporting for quick tunneling of coal roadways. The reaming and self-rotating anchor rod comprises 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; a hole in length smaller than the length of the anchor rod is drilled out with an anchor rod bolter first, and then the anchor rod is connected to the anchor rod bolter, the drill bit on the front part of the anchor rod is placed in the preformed hole, and finally the anchor rod is driven to ream and rotate into the coal mass, so as to accomplish the construction with the reaming and self-rotating anchor rod; the reaming and self-rotating anchor rod can shorten supporting time and avoid an abandoned borehole phenomenon incurred by hole collapse or blockage, and anchoring failure, etc., and the anchor rod is simple to manufacture, low in cost, and simple and convenient to operate. Therefore, the anchor rod and the method of using it can be widely applied and can meet the requirement for quick tunneling of coal roadways.
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