Patents Assigned to China University of Mining and Technology
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Patent number: 10995572Abstract: A simulation test method 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.Type: GrantFiled: November 12, 2018Date of Patent: May 4, 2021Assignees: 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 TECHNOLOGYInventors: Shuxun Sang, Xiaozhi Zhou, Liweng Cao, Shiqi Liu, Haiwen Wang, Huihu Liu, Zicheng Li, Jinlong Jia, Huazhou Huang, Changjiang Liu, Hongjie Xu, Ran Wang, Shuyun Zhu
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Patent number: 10989695Abstract: Disclosed are an online monitoring system for a crack on a hoist spindle and an operation method thereof. The system comprises: a rope power part, a crack detection part, a wireless transmission part, and a computer. The rope power part comprises two traction ropes, two guide wheels, two stepper motors, and two stepper motor drivers. The crack detection part comprises a spiral tube guide rail, a sliding body, and an ultrasonic generator. The wireless transmission part comprises three zigbee wireless sensing modules. The zigbee wireless sensing modules receive instructions from the computer and transmit the instructions to the stepper motor drivers to control the motors to rotate. The stepper motors drive the guide wheels to rotate to realize the winding of the ropes, so as to pull the sliding body to slide on the spiral tube guide rail. The ultrasonic generator clamped on the sliding body monitors the rotating spindle along the spiral tube guide rail.Type: GrantFiled: July 1, 2019Date of Patent: April 27, 2021Assignee: China University of Mining and TechnologyInventors: Zhencai Zhu, Hao Lu, Shuang Cao, Yuxing Peng, Gongbo Zhou, Guohua Cao, Gang Shen, Wei Li, Dagang Wang, Fan Jiang
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Patent number: 10988347Abstract: 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).Type: GrantFiled: September 4, 2019Date of Patent: April 27, 2021Assignees: China University of Mining and Technology, XUZHOU COAL MINE SAFETY EQUIPMENT MANUFACTURE CO., LTD.Inventors: Yuxing Peng, Zhencai Zhu, Gongbo Zhou, Changhua Hu, Qingyong Du, Hao Lu, Guohua Cao, Songyong Liu, Gang Shen
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Patent number: 10981203Abstract: The present invention discloses a single-drive bidirectional-crawling pipe-cleaning robot, including a front body assembly, a transmission assembly, and a rear body assembly. The transmission assembly is driven by a single power source, and a transmission effect of a connecting rod mechanism, a gear mechanism, and an equal-dwell cam mechanism is used to implement alternate retraction and support of the front body assembly and the rear body assembly in a radial direction and a telescopic motion in an axial direction between the front body assembly and the rear body assembly and at the same time implement synchronous rotation of a dredging cutter head, so as to implement bidirectional crawling and pipe cleaning work of the robot along a pipe.Type: GrantFiled: November 13, 2017Date of Patent: April 20, 2021Assignees: China University of Mining and Technology, Xuzhou Zhirun Mining Equipment Science and Technology Co., LtdInventors: Songyong Liu, Qizhi Xie, Hongxiang Jiang, Hongzhuang Wu, Cheng Cheng, Wei Li, Gang Shen, Wei Tang, Houguang Liu, Jianhua Yang
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Patent number: 10973181Abstract: 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.Type: GrantFiled: June 25, 2018Date of Patent: April 13, 2021Assignees: JIANGSU HUAYUAN WATER-SAVING CO., LTD, China University of Mining and TechnologyInventors: Zhipeng Qiu, Tao Peng, Peiyong Liu, Jinxiang Zhang, Zhencai Zhu, Fan Jiang
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Patent number: 10973180Abstract: A self-priming water turbine-driven reel sprinkler irrigation machine includes a framework, a plug board, a reel, a PE pipe, a water turbine driving device, a sprinkler wagon, and a self-priming device. The framework comprises an underframe, a reel support frame, a plug board support frame, and a wheel assembly. A bottom portion of the underframe is provided with an underframe rotary device, and the underframe rotary device comprises a rotary bearing and a chassis support member. An inner ring of the rotary bearing is fixedly mounted to the underframe, and an outer ring of the rotary bearing is fixedly mounted and connected to the chassis support member. A telescopic front support is disposed at a front part of the underframe. The wheel assembly comprises a wheel support beam, a wheel, and a wheel lifting hydraulic cylinder. The self-priming device comprises a water pump, a pumping hose, and a filtering mechanism.Type: GrantFiled: June 25, 2018Date of Patent: April 13, 2021Assignees: JIANGSU HUAYUAN WATER-SAVING CO., LTD, China University of Mining and TechnologyInventors: Zhipeng Qiu, Tao Peng, Peiyong Liu, Jinxiang Zhang, Zhencai Zhu, Fan Jiang
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Publication number: 20210070586Abstract: The present invention discloses a hoisting container pose control method of a double-rope winding type ultra-deep vertical shaft hoisting system. The method comprises the following steps of step 1, building a mathematical model of a double-rope winding type ultra-deep vertical shaft hoisting subsystem; step 2, building a position closed-loop mathematical model of an electrohydraulic servo subsystem; step 3, outputting a flatness characteristics of a nonlinear system; step 4, designing a pose leveling flatness controller of a double-rope winding type ultra-deep vertical shaft hoisting subsystem; and step 5, designing a position closed-loop flatness controller of the electrohydraulic servo subsystem. The present invention has the advantages that a system state variable derivation process is omitted, so that a design process of the controllers is greatly simplified. The response time of the controllers can be shortened, and a hoisting container can fast reach a leveling state.Type: ApplicationFiled: September 12, 2019Publication date: March 11, 2021Applicant: China University of Mining and TechnologyInventors: Gang SHEN, Zhencai ZHU, Xiang LI, Yu TANG, Guohua CAO, Gongbo ZHOU, Songyong LIU, Yuxing PENG, Hao LU
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Patent number: 10941641Abstract: A long-distance drilling and hydrofracturing integrated device and method in underground mine are provided. The device includes a drill bit, a hydrofracturing rod, an anti-impact rod, a hole sealing rod, a high-pressure sealed drill rod and a crawler drill rod feeder sequentially connected end to end. In the method, the drill rod and the hydrofracturing rod are delivered to a designated position while drilling, the drill rod does not need to be taken out, only a crawler drill needs to be improved, high-pressure water holes are added to the rod feeder, and the high-pressure water enters the drill rod from the high-pressure water holes and reaches the hydrofracturing portion. When the hydrofracturing is completed, the drill rod is withdrawn by the crawler drill, reaches another hydrofracturing point, and a hole sealing operation can also be performed.Type: GrantFiled: May 11, 2018Date of Patent: March 9, 2021Assignee: China University of Mining and TechnologyInventors: Bingxiang Huang, Haoze Li, Shuliang Chen
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Patent number: 10941803Abstract: The present invention discloses a blind bolt fastening device, and belongs to the technical field of bolts. The blind bolt fastening device includes Z-shaped gaskets, a fixed plate, elastic hinges, a screw cap, a nut, an integrated gasket and the like. The top end of the screw cap is connected to the fixed plate in a spot welding manner. A plurality of elastic hinges is uniformly mounted on the fixed plate. One end of each elastic hinge is rotatably fixed on the fixed plate. Connection points of the elastic hinges and the fixed plate do not exceed the outer edge of the fixed plate. The other end of each elastic hinge is connected to one Z-shaped gasket in a spot welding manner. In an initial state, the plurality of Z-shaped gaskets are uniformly distributed and fitted onto the outer wall of the screw cap along a circumferential direction.Type: GrantFiled: September 30, 2018Date of Patent: March 9, 2021Assignees: China University of Mining and Technology, China Mining & Civil New Material Science and Technology Ltd.Inventors: Hongfei Chang, Jianbiao Bai, Yaping Lu, Junwu Xia, Fengjie Zhang, Wei Xie
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Patent number: 10934817Abstract: 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.Type: GrantFiled: October 18, 2018Date of Patent: March 2, 2021Assignees: China University of Mining and Technology, XUZHOU OLIVINE GEOSCIENCE & GEOTECH CO., LTDInventors: 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
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Publication number: 20210041402Abstract: Disclosed are an online monitoring system for a crack on a hoist spindle and an operation method thereof. The system comprises: a rope power part, a crack detection part, a wireless transmission part, and a computer. The rope power part comprises two traction ropes, two guide wheels, two stepper motors, and two stepper motor drivers. The crack detection part comprises a spiral tube guide rail, a sliding body, and an ultrasonic generator. The wireless transmission part comprises three zigbee wireless sensing modules. The zigbee wireless sensing modules receive instructions from the computer and transmit the instructions to the stepper motor drivers to control the motors to rotate. The stepper motors drive the guide wheels to rotate to realize the winding of the ropes, so as to pull the sliding body to slide on the spiral tube guide rail. The ultrasonic generator clamped on the sliding body monitors the rotating spindle along the spiral tube guide rail.Type: ApplicationFiled: July 11, 2019Publication date: February 11, 2021Applicant: China University of Mining and TechnologyInventors: Hao LU, Shuang CAO, Zhencai ZHU, Yuxing PENG, Gongbo ZHOU, Guohua CAO, Gang SHEN, Wei LI, Dagang WANG, Fan JIANG
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Patent number: 10907474Abstract: 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.Type: GrantFiled: June 7, 2017Date of Patent: February 2, 2021Assignee: China University of Mining and TechnologyInventors: Nong Zhang, Zhengzheng Xie, Changliang Han
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Publication number: 20210017775Abstract: A prefabricated stair modular assembly mold comprises a base, a step standard module, an upside module of a lower platform, an underside rotating module of a lower platform, an upside module of an upper platform, an underside rotating module of an upper platform, an underside common module, and an underside adjustment modules. Prefabricated stair molds of different dimensions are formed by means of locating holes provided in the assembling modules, and are then fixed by means of sliding holes at two ends. Further disclosed is a mounting method for said assembly mold. Said assembly mold has high positioning accuracy, and small accumulated error, improving the mounting efficiency of the prefabricated staircase mold.Type: ApplicationFiled: October 8, 2019Publication date: January 21, 2021Applicants: China University of Mining and Technology, China Mining & Civil New Material Science and Technology Ltd., BOXIA MINING TECHNOLOGY LTD.Inventors: Hong CHANG, Junwu XIA, Xiaofang XIANG, Xia BAI
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Patent number: 10895120Abstract: A dust suction hood includes a tapered outer cover, a cylindrical outer cover, a tapered inner baffle plate disposed in the tapered outer cover, and a first blocking member matched with an opening in the other end of the cylindrical outer cover. A top opening of the tapered outer cover is matched with an opening in one end of the cylindrical outer cover. A side wall opening of the cylindrical outer cover serves as a dust outlet. A first gap is formed in the tapered outer cover. A first dust suction port is formed between bottom openings of the tapered inner baffle plate and the tapered outer cover. A first drill pipe connecting port is formed in the first blocking member. A drill pipe of the mine drill passes through the first drill pipe connecting port to penetrate the dust suction hood on the drill pipe.Type: GrantFiled: October 29, 2018Date of Patent: January 19, 2021Assignees: China University of Mining and Technology, XUZHOU BOAN SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTDInventors: Wei Yang, Baiquan Lin, Minghua Lin, Ru Jia, Changzheng Lu
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Patent number: 10895154Abstract: 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.Type: GrantFiled: November 2, 2017Date of Patent: January 19, 2021Assignee: China University of Mining and TechnologyInventors: Qiang Zhang, Jixiong Zhang, Zhongya Wu, Wenyue Qi, Hong Yan, Meng Li
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Patent number: 10895153Abstract: 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.Type: GrantFiled: September 14, 2018Date of Patent: January 19, 2021Assignees: China University of Mining and Technology, JIANGSU KAMPF MECHANICAL TECHNOLOGY CO., LTDInventors: Hongxiang Jiang, Zhengwei Hu, Songyong Liu
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Publication number: 20210000026Abstract: A self-priming water turbine-driven reel sprinkler irrigation machine includes a framework, a plug board, a reel, a PE pipe, a water turbine driving device, a sprinkler wagon, and a self-priming device. The framework comprises an underframe, a reel support frame, a plug board support frame, and a wheel assembly. A bottom portion of the underframe is provided with an underframe rotary device, and the underframe rotary device comprises a rotary bearing and a chassis support member. An inner ring of the rotary bearing is fixedly mounted to the underframe, and an outer ring of the rotary bearing is fixedly mounted and connected to the chassis support member. A telescopic front support is disposed at a front part of the underframe. The wheel assembly comprises a wheel support beam, a wheel, and a wheel lifting hydraulic cylinder. The self-priming device comprises a water pump, a pumping hose, and a filtering mechanism.Type: ApplicationFiled: June 25, 2018Publication date: January 7, 2021Applicants: JIANGSU HUAYUAN WATER-SAVING CO.,LTD, China University of Mining and TechnologyInventors: Zhipeng QIU, Tao PENG, Peiyong LIU, Jinxiang ZHANG, Zhencai ZHU, Fan JIANG
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Patent number: 10882700Abstract: The present invention discloses an embedded scraper rotation angle detection device for a scraper conveyor and a detection method. The detection device includes two extensible detection devices, two signal detection units and a remote processing unit. The two extensible detection devices and the two signal detection units are disposed at two ends of a scraper respectively. The signal detection units detect movement displacements of the extensible detection devices in real time and send out signals through wireless transmission modules, the wireless transmission modules and a wireless receiving module are used for data transmission, and a signal display processing module is used to calculate a rotation angle value of the scraper in real time, output and display the rotation angle value simultaneously, compare the rotation angle value measured in real time with a set safety threshold, and send out an alarm indication when the rotation angle value exceeds the safety threshold.Type: GrantFiled: September 12, 2019Date of Patent: January 5, 2021Assignees: China University of Mining and Technology, ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY, HUAIHAI INSTITUTE OF TECHOLOGYInventors: Yu Tang, Zhencai Zhu, Gang Shen, Yongcun Guo, Xiang Li, Jinsong Chen, Tongqing Li, Dagang Wang, Guohua Cao, Wei Li, Gongbo Zhou, Yuxing Peng, Hao Lu
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Publication number: 20200408094Abstract: The present invention discloses a mine exploitation method based on stoping, separation and filling control. The design process comprises: deploying a gangue-less coal mining system; choosing a suitable coal and gangue separation method according to a separation requirement; choosing a suitable filling method according to mine geology, production conditions and rock stratum control requirement; reversely calculating a filling rate according to gangue discharge requirement and control indexes by utilizing theoretical calculation, simulation and experiment; determining a filling process and a separation process according to the filling rate; and feeding back and adjusting the filling process and separation process parameters by monitoring filling and control effect indexes.Type: ApplicationFiled: April 1, 2019Publication date: December 31, 2020Applicants: China University of Mining and Technology, Xuzhou Zhongkuang Backfilling & Mining Technology Co., Ltd.Inventors: Jixiong ZHANG, Qiang ZHANG, Zhongya WU, Feng JU, Jiaqi WANG, Yang CHEN
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Patent number: 10875055Abstract: A modular quality improvement process and quality improvement system for high density coal measures oil shale. The process comprises: performing separation on the material with a particle size larger than 13 mm by an air dense medium fluidized bed, performing separation on the material with a particle size equal to or less than 13 mm and larger than 6 mm by an air dense medium fluidized bed, performing separation on the material with a particle size equal to or less than 6 mm and larger than 3 mm by a vibrated dense medium fluidized bed, and performing separation on the material with a particle size equal to or less than 3 mm by a vibrated fluidized bed, and recovery of a medium by magnetic separation for use as a circulating medium.Type: GrantFiled: December 12, 2017Date of Patent: December 29, 2020Assignee: China University of Mining and TechnologyInventors: Bo Zhang, Yuemin Zhao, Chenyang Zhou, Xuchen Fan, Chenlong Duan, Liang Dong, Jingfeng He