Patents by Inventor Jixiong Zhang
Jixiong Zhang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20200003667Abstract: A method for determining a physical similarity simulation material of a solid backfill body is provided. A compaction test is run on a gangue backfill body in a lab, to obtain a ?-? curve regarding the gangue backfill body in the compaction process. Backfill blocks are made by using a thin wood board, sponge, and a paper sheet in different proportions, and then an unconfined compression test is separately run on the backfill blocks used for physical similarity simulation, to obtain ?i-?i curves regarding the backfill blocks in the compression process. A sum of squared errors ?(?i??0)2 is introduced to separately calculate a sum of squared errors of the backfill block and that of the gangue backfill body, and accordingly an error between ?-? curves regarding the test block and the gangue backfill body is determined. Finally, a backfill block for which the sum of squared errors is less than 0.5 is determined as a physical similarity simulation material of the gangue backfill body.Type: ApplicationFiled: November 16, 2017Publication date: January 2, 2020Applicants: China University of Mining and Technology, XUZHOU ZHONAN SCIENCE&TECHNOLOGY CO., LTDInventors: Jixiong ZHANG, Xiaole HAN, Qiang ZHANG, Lixin LAN, Yadong CHEN, Yang TAI
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Publication number: 20190301283Abstract: A method for recovering room-mining coal pillars by solid filling in synergy with artificial pillars. Solid materials and cementing materials on the ground are conveyed through a feeding well and a pipeline to a room-and-pillar goaf, a plurality of artificial pillars is cast at an interval in a coal room area, and gangue is cast to fill other regions of the coal room using a gangue casting machine. Under joint support by the artificial pillars and the coal room filler, coal pillars are recovered using a continuous coal mining machine, artificial pillars are cast in the original coal pillar area after recovery, and gangue is cast to fill the original coal pillar area using the gangue casting machine. A system for recovering room-mining coal pillars by solid filling in synergy with artificial pillars mainly includes a material conveying system, a joint support system, and a coal pillar recovery system.Type: ApplicationFiled: November 21, 2016Publication date: October 3, 2019Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Jixiong ZHANG, Qiang ZHANG, Xiancheng MEI, Kun FANG, Xiaole HAN
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Patent number: 10385692Abstract: An apparatus for pre-loading a mechanical constant-resistance single prop includes a rhombic stretchable bracket, a screw rod, a first cylindrical sleeve ring, and a second cylindrical sleeve ring. The screw rod is connected to two opposite apex corners of the rhombic stretchable bracket. A tail end of the screw rod is fixedly connected to one apex corner of the rhombic stretchable bracket. An end head of the screw rod passes through another apex corner of the rhombic stretchable bracket. The remaining two opposite apex corners of the rhombic stretchable bracket are respectively fixedly connected to edges of the first cylindrical sleeve ring and the second cylindrical sleeve ring through connecting rods. The screw rod is threadedly connected to the apex corner of the rhombic stretchable bracket through which the screw rod passes. A method for pre-loading a mechanical constant-resistance single prop is also provided.Type: GrantFiled: December 1, 2016Date of Patent: August 20, 2019Assignee: China University of Mining and TechnologyInventors: Jixiong Zhang, Qiang Zhang, Yanlong Chen, Kai Quan, Hao Yan
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Patent number: 10352167Abstract: The present invention discloses a process method for withdrawing and recovering a mechanical constant-resistance single prop, specific steps involving: detecting a working resistance and a degree of deformation of a mechanical constant-resistance single prop, releasing lug clamp bolts of a recoverable base, knocking a lower portion of a cylinder body of the mechanical constant-resistance single prop to disengage the mechanical constant-resistance single prop from the recoverable base, and dismantling the mechanical constant-resistance single prop. Parts are classified and recovered based on degree of deformation thereof. By means of the foregoing method, a process of withdrawing and recovering a mechanical constant-resistance single prop is standardized, simple and fast disengagement of the mechanical constant-resistance single prop is achieved, and parts that can still be used can be sufficiently recovered and reused, thereby achieving the objectives of saving energy and reducing costs.Type: GrantFiled: December 1, 2016Date of Patent: July 16, 2019Assignee: China University of Mining and TechnologyInventors: Jixiong Zhang, Nan Zhou, Wenyue Qi, Qiang Zhang, Meng Li
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Patent number: 10301939Abstract: Disclosed is a method for designing supporting parameters of a transition support for a mixed mining face of filling and fully-mechanized mining.Type: GrantFiled: November 18, 2016Date of Patent: May 28, 2019Assignees: CHINA UNIVERSITY OF MINING AND TECHNOLOGY, Pingdingshan Tianan Coal Mining Co., LTD, China Pingmei Shenma Energy and Chemical Industry Group Co., LTD, Xuzhou ZhongAn Science & Technology Co., Ltd.Inventors: Jixiong Zhang, Jianguo Zhang, Qiang Zhang, Qiang Sun, Wei Yin, WeiQing Zhang, Hao Yan
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Publication number: 20190085690Abstract: An apparatus for pre-loading a mechanical constant-resistance single prop includes a rhombic stretchable bracket, a screw rod, a first cylindrical sleeve ring, and a second cylindrical sleeve ring. The screw rod is connected to two opposite apex corners of the rhombic stretchable bracket. A tail end of the screw rod is fixedly connected to one apex corner of the rhombic stretchable bracket. An end head of the screw rod passes through another apex corner of the rhombic stretchable bracket. The remaining two opposite apex corners of the rhombic stretchable bracket are respectively fixedly connected to edges of the first cylindrical sleeve ring and the second cylindrical sleeve ring through connecting rods. The screw rod is threadedly connected to the apex corner of the rhombic stretchable bracket through which the screw rod passes. A method for pre-loading a mechanical constant-resistance single prop is also provided.Type: ApplicationFiled: December 1, 2016Publication date: March 21, 2019Applicant: China University of Mining and TechnologyInventors: Jixiong ZHANG, Qiang ZHANG, Yanlong CHEN, Kai QUAN, Hao YAN
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Publication number: 20190085691Abstract: The present invention discloses a process method for withdrawing and recovering a mechanical constant-resistance single prop, specific steps involving: detecting a working resistance and a degree of deformation of a mechanical constant-resistance single prop, releasing lug clamp bolts of a recoverable base, knocking a lower portion of a cylinder body of the mechanical constant-resistance single prop to disengage the mechanical constant-resistance single prop from the recoverable base, and dismantling the mechanical constant-resistance single prop. Parts are classified and recovered based on degree of deformation thereof. By means of the foregoing method, a process of withdrawing and recovering a mechanical constant-resistance single prop is standardized, simple and fast disengagement of the mechanical constant-resistance single prop is achieved, and parts that can still be used can be sufficiently recovered and reused, thereby achieving the objectives of saving energy and reducing costs.Type: ApplicationFiled: December 1, 2016Publication date: March 21, 2019Applicant: China University of Mining and TechnologyInventors: Jixiong ZHANG, Nan ZHOU, Wenyue QI, Qiang ZHANG, Meng LI
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Publication number: 20190071967Abstract: A mining design method for an upper protective layer in coal seam mining, and provides a mining design method for a near-whole rock upper protective layer. Based on information about engineering geologic conditions of a protective layer mining well and physico-mechanical parameters of a coal-rock mass sample, a protective layer mining thickness M and an interval H between the protective layer and the protected layer are determined by means of numerical analysis such that an expansion deformation rate ? of a protected layer, a failure depth K of a floor plastic zone of a protective layer, and a coal seam gas pressure P meet the Provision in Prevention and Control of Coal and Gas Outburst.Type: ApplicationFiled: November 18, 2016Publication date: March 7, 2019Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Jixiong ZHANG, Qiang ZHANG, Qiang SUN, Xiancheng MEI
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Publication number: 20180314770Abstract: Disclosed is a method for designing supporting parameters of a transition support for a mixed mining face of filling and fully-mechanized mining.Type: ApplicationFiled: November 18, 2016Publication date: November 1, 2018Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Jixiong ZHANG, Qiang SUN, Qiang ZHANG, Wei YIN, Hao YAN
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Patent number: 10113854Abstract: Disclosed is a device for detecting wall abrasion of a solid-filling feeding well and a detection method thereof. The device comprises a well wall abrasion detector, a horizontal displacement meter, a vertical displacement monitor, and a limit guide rod. One end of the limit guide rod is connected to the well wall abrasion detector. The signal output terminal of the well wall abrasion detector is connected to the signal input terminal of the horizontal displacement meter, and the other end of the limit guide rod passes through the vertical displacement monitor for slidable setting. This disclosure mainly utilizes a resistance strain displacement sensor to detect the abrasion and deformation degree of the well wall, determines the position of damages with the vertical displacement monitor, and draws wall abrasion curves by using the obtained data.Type: GrantFiled: June 16, 2015Date of Patent: October 30, 2018Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Jixiong Zhang, Wenyue Qi, Qiang Zhang, Peng Huang, Qiang Sun
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Patent number: 10036252Abstract: A method for removing a hydraulic support for solid filling coal mining includes digging a support removing channel (3) in a coal body (2) in front of the hydraulic support (1), and laying a support removing track (4), then removing the hydraulic support from a coal conveying gateway (11) to a track gateway (5), temporary supporting is carried out by matching a single supporting column with a n-type steel beam before each hydraulic support is removed. A supporting roof is reinforced in time by means of erecting a crib (13) and grouting after each hydraulic support is removed, three grouting pipelines (12) are laid after the supports of the whole work surface are removed, and grouting is carried out in the whole finishing cut space. The roof of the support removing space of the work surface is stable so that the hydraulic supports on the work surface of solid filling coal mining are ensured to be safely and efficiently removed.Type: GrantFiled: May 13, 2015Date of Patent: July 31, 2018Assignee: China University of Mining and TechnologyInventors: Feng Ju, Xiexing Miao, Jixiong Zhang, Xuejie Deng, Xufeng Wang
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Patent number: 9988905Abstract: A solid-filling coal mining feeding and conveying monitoring system, suitable for monitoring of a vertical feeding and conveying system in underground mine solid-filling mining. The monitoring system mainly consists of an industrial control computer, a PLC control box, an operating platform, a liquid crystal display, a color four-picture divider, two video optical receivers and loudspeakers, four cameras, uphole electronic belt scales, downhole electronic belt scales, a radar level meter, a coal level sensor, a vibration sensor, and various matching junction boxes and cables, the components being installed in positions such as a material field, a control room, upper and lower openings of a storage silo, and a gangue transportation lane. The system implements four main functions of a solid-filling material transportation and feeding process, the four main functions being status monitoring, a full silo alarm, centralized control, and recording and querying.Type: GrantFiled: June 12, 2015Date of Patent: June 5, 2018Assignee: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Jixiong Zhang, Nan Zhou, Wei Yin, Meng Li
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Patent number: 9938083Abstract: A mechanical rocker-arm type vertical feeding cushioning device, consisting of two identical cushioning units and a box body (7). The two cushioning units are respectively arranged with a certain height difference on the inner side of the box body (7). Each cushioning unit consists of a cushioning mechanism and a fixing hinge mechanism. The cushioning mechanism is composed of a cushioning plate (1), a spring (5) and a balance weight (6). The fixing hinge mechanism is composed of a hinge plate (2), a right angle circular rod (3) and an elastic limiting device (4). The cushioning plate (1) is fixed to the hinge plate (2) via connection holes and using bolts. The hinge plate (2) is welded to the right angle circular rod (3). The elastic limiting device (4) consists of two elastic limiting plates and a hollow iron ring in a welded manner. The right angle circular rod (3) is connected to the elastic limiting device (4) in a sleeved manner via the hollow iron ring of the elastic limiting device (4).Type: GrantFiled: April 21, 2015Date of Patent: April 10, 2018Assignee: China University of Mining and TechnologyInventors: Jixiong Zhang, Qiang Zhang, Rui Gao, Hao Yan, Meng Li
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Publication number: 20170283174Abstract: A mechanical rocker-arm type vertical feeding cushioning device, consisting of two identical cushioning units and a box body (7). The two cushioning units are respectively arranged with a certain height difference on the inner side of the box body (7). Each cushioning unit consists of a cushioning mechanism and a fixing hinge mechanism. The cushioning mechanism is composed of a cushioning plate (1), a spring (5) and a balance weight (6). The fixing hinge mechanism is composed of a hinge plate (2), a right angle circular rod (3) and an elastic limiting device (4). The cushioning plate (1) is fixed to the hinge plate (2) via connection holes and using bolts. The hinge plate (2) is welded to the right angle circular rod (3). The elastic limiting device (4) consists of two elastic limiting plates and a hollow iron ring in a welded manner. The right angle circular rod (3) is connected to the elastic limiting device (4) in a sleeved manner via the hollow iron ring of the elastic limiting device (4).Type: ApplicationFiled: April 21, 2015Publication date: October 5, 2017Inventors: HAO YAN, JIXIONG ZHANG, QIANG ZHANG, RUI GAO, MENG LI
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Publication number: 20170184389Abstract: Disclosed is a device for detecting wall abrasion of a solid-filling feeding well and a detection method thereof. The device comprises a well wall abrasion detector, a horizontal displacement meter, a vertical displacement monitor, and a limit guide rod. One end of the limit guide rod is connected to the well wall abrasion detector. The signal output terminal of the well wall abrasion detector is connected to the signal input terminal of the horizontal displacement meter, and the other end of the limit guide rod passes through the vertical displacement monitor for slidable setting. This disclosure mainly utilizes a resistance strain displacement sensor to detect the abrasion and deformation degree of the well wall, determines the position of damages with the vertical displacement monitor, and draws wall abrasion curves by using the obtained data.Type: ApplicationFiled: June 16, 2015Publication date: June 29, 2017Applicant: CHINA UNIVERSITY OF MINNING AND TECHNOLOGYInventors: Jixiong Zhang, Wenyue Qi, Qiang Zhang, Peng Huang, Qiang Sun
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Publication number: 20170138194Abstract: A method for removing a hydraulic support for solid filling coal mining includes digging a support removing channel (3) in a coal body (2) in front of the hydraulic support (1), and laying a support removing track (4), then removing the hydraulic support from a coal conveying gateway (11) to a track gateway (5), temporary supporting is carried out by matching a single supporting column with a n-type steel beam before each hydraulic support is removed. A supporting roof is reinforced in time by means of erecting a crib (13) and grouting after each hydraulic support is removed, three grouting pipelines (12) are laid after the supports of the whole work surface are removed, and grouting is carried out in the whole finishing cut space. The roof of the support removing space of the work surface is stable so that the hydraulic supports on the work surface of solid filling coal mining are ensured to be safely and efficiently removed.Type: ApplicationFiled: May 13, 2015Publication date: May 18, 2017Inventors: Feng JU, Xiexing MIAO, Jixiong ZHANG, Xuejie DENG, Xufeng WANG
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Patent number: 9494037Abstract: In an inclined layered solid-filling mining method in an ultrathick coal layer, tunnels and equipment are arranged according to a solid-filling mining method. An artificial roof for a lower layer is formed by metal meshes and bamboo fences of a first layer a solid-filling mining method. The method is repeated, until the entire ultrathick coal layer is finished. The method is repeated forming additional roofs for subsequent layers.Type: GrantFiled: January 22, 2014Date of Patent: November 15, 2016Assignee: China University of Mining and TechnologyInventors: Jixiong Zhang, Nan Zhou, Qiang Zhang, Jiwei Guo, Xiaoming Shen, Feng Ju, Haiqiang Jiang
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Publication number: 20160311625Abstract: A solid-filling coal mining feeding and conveying monitoring system, suitable for monitoring of a vertical feeding and conveying system in underground mine solid-filling mining. The monitoring system mainly consists of an industrial control computer, a PLC control box, an operating platform, a liquid crystal display, a color four-picture divider, two video optical receivers and loudspeakers, four cameras, uphole electronic belt scales, downhole electronic belt scales, a radar level meter, a coal level sensor, a vibration sensor, and various matching junction boxes and cables, the components being installed in positions such as a material field, a control room, upper and lower openings of a storage silo, and a gangue transportation lane. The system implements four main functions of a solid-filling material transportation and feeding process, the four main functions being status monitoring, a full silo alarm, centralized control, and recording and querying.Type: ApplicationFiled: June 12, 2015Publication date: October 27, 2016Applicant: CHINA UNIVERSITY OF MINING AND TECHNOLOGYInventors: Jixiong Zhang, Nan Zhou, Wei Yin, Meng Li
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Publication number: 20160102553Abstract: An inclined layered solid-filling mining method in an ultrathick coal layer is applicable to exploitation in a “three-unders” ultrathick coal layer. In this method, the number of inclined layers is determined based on a principle of layered thickness from 2.5 m to 4.5 m, and a layered-exploitation downward-filling exploitation order is adopted. Tunnels and equipment are arranged according to a conventional solid-filling mining method. A cyclic order of mining, layout of metal meshes (14) and bamboo fences (24), and filling is adopted, so as to accomplish filling and exploitation of a first mining face and a first layer (21).Type: ApplicationFiled: January 22, 2014Publication date: April 14, 2016Inventors: Jixiong Zhang, Nan Zhou, Qiang Zhang, Jiwei Guo, Xiaoming Shen, Feng Ju, Haiqiang Jiang