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公开(公告)号：US10954784B2
公开(公告)日：2021-03-23
申请号：US16753801
申请日：2018-04-23
Inventor： Kuidong Gao , Liqing Sun , Qingliang Zeng , Xin Zhang , Wenbo Xu , Liang Wang , Xiaodi Zhang
Abstract: A shearer cutting unit with double-speed rollers includes a motor driving unit, a motor driving unit, a gear transmission unit and a roller output unit. The motor driving unit includes a left cutting motor and a right cutting motor which are both arranged in a cutting unit case and connected with the roller output unit in a transmission way through the gear transmission unit. The roller output unit comprises a middle output shaft (3-1), a far-end output shaft, a middle support frame, a middle roller, a far-end support frame and a far-end roller. A cutting roller is separated into two coaxially-rotating parts, and the two rollers can rotate in different speeds.
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公开(公告)号：US20210040849A1
公开(公告)日：2021-02-11
申请号：US16475561
申请日：2018-01-10
Inventor： Zhijie WEN , Shaoshuai SHI , Shengli YANG , Lei TIAN , Fanbao MENG , Enrui XING
Abstract: Provided are a grouting anchor bolt and a grouting anchor cable for supporting of large deformation and constant resistance and a quantitative roadway supporting method, wherein an anchor bolt comprises a casing, a hollow rod body, an anchor cylinder, a tray, a fastening nut and a clamping pin, a front end of the casing is sealed and a rear end of the casing is opened, a middle position of the casing is provided with a plurality of grouting holes, an inner diameter of the casing from the middle position of the casing to the rear end becomes small gradually, a side surface of a front end of the hollow rod body is sleeved with an anchor cylinder, the anchor cylinder is inserted into the casing and movably connected with the casing, the anchor cylinder is connected with the casing through the clamping pin, a rear end of the hollow rod body is sequentially assembled and connected with the tray and the fastening nut. The beneficial effects herein are as follows: the anchor bolt and the anchor cable simple in structure, easy to process, simplifies operations of supporting and grouting, and therefore particularly suitable for supporting of large deformation for surrounding rocks. The self-bearing capability of surrounding rocks is improved, and the supporting of large deformation of surrounding rocks is provided through constant resistance, thereby realizing organic combination of “yielding-supporting” and “active-passive supporting”; the quantitative roadway supporting method may realize quantitative supporting for a roadway.
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公开(公告)号：US10443380B2
公开(公告)日：2019-10-15
申请号：US16319880
申请日：2017-10-31
Inventor： Kegong Fan , Chunyuan Jing , Shengming Niu , Deli Fan , Chuanwei Zang
Abstract: An asymmetric support structure of entry driven along gob-side (EDG) under unstable roof in deep mines and construction method thereof. The asymmetric support structure includes roadway roof support structure, a gob-side support structure and a solid coal seam-side support structure. The roadway roof support structure includes a reinforcing wire mesh, a W-section steel strap, high-strength pretensioned bolts, and cable bolts and matching steel straps. The gob-side support structure includes a reinforcing wire mesh, a W-section steel strap, high-strength pretensioned yielding bolts and grouting cable bolts and its matching steel straps. The solid coal seam-side support structure includes a reinforcing wire mesh, a reinforced beam and steel strap pallet subassembly, high-strength pretensioned yielding bolts and cable bolts and its matching steel straps. The roadway roof support structure, gob-side support structure and solid coal seam-side support structure beneficially together form the asymmetric support structure.
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公开(公告)号：US10253629B2
公开(公告)日：2019-04-09
申请号：US15359751
申请日：2016-11-23
Inventor： Weimin Cheng , Zhen Liu , Gang Wang , Gang Zhou , Lianjun Chen , Wen Nie , Lin Xin , Yanbin Yu , Guanhua Ni , He Yang
Abstract: Described are a test apparatus and a test method for the wetted perimeter of coal seam water injection. In the test apparatus, a columnar insulator is provided between an upper electrode and a lower electrode, circular insulating tapes are located at the outer edges of the upper electrode and the lower electrode, a circular reverse osmosis membrane is provided at the middle of the circular insulating tape, the upper electrode, lower electrode, circular insulating tapes and circular reverse osmosis membrane form an enclosed chamber which is filled with solid sodium chloride, and cotton yarns are packed among the upper resin backing plate, lower resin backing plate, circular insulating tapes and the inner walls of water permeable perforated pipes. The upper electrode is provided with an electrode lead which passes through the columnar insulator, the lower electrode and the lower resin backing plate and goes out from the tail connecting end.
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45.发明申请公开(公告)号：US20180052079A9
公开(公告)日：2018-02-22
申请号：US15381878
申请日：2016-12-16
Inventor： Gang ZHOU , Qi ZHANG , Ruonan BAI , Weimin CHENG , Wen NIE , Jiao XUE , Han QIU , Tao FAN , Mao XU , Cong CHEN
CPC classification number: G01M99/008 , B01D47/06
Abstract: A multi-nozzle combined atomizing dust suppression experimental equipment under the effect of airflow disturbance includes a simulated roadway device, water spray based dust suppression device and nozzle position adjustor. The simulated roadway device includes an inlet portion, front divergent portion, simulated roadway body, rear convergent portion and outlet portion. The water spray based dust suppression device includes a dust generation and extraction system and spraying system. The dust generation and extraction system includes a dust generation device, exhaust air duct, exhaust fan and outlet air duct while the spraying system includes a water tank, high pressure water pump, confined water pipe, pressure water flow converter and multiple nozzles. The nozzle position adjustor includes a nozzle slide, slide fixing rod, nozzle sliding rack and electrically-controlled drive system which controls the change of horizontal position and vertical position of the nozzles.
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Patent Agency Ranking
公开(公告)号：US20170293047A1
公开(公告)日：2017-10-12
申请号：US15478626
申请日：2017-04-04
Applicant: Shandong University of Science and Technology , Shandong Provincial Coal Geological Planning, Exploration and Research Institute
Inventor： Zengxue LI , Ying LI , Dawei LV , Huaihong WANG , Dongdong WANG , Pingli WANG , Haiyan LIU
IPC: G01V9/00
CPC classification number: G01V9/00
Abstract: A method of determining the coal-bearing system boundary includes the following steps: firstly, determining the high-level boundaries mainly including the tectonic boundary, ore-bearing stratum and geological body distribution boundary, mixed complex boundary, etc.; secondly, determining the major boundary mainly including a fault or fault zone, giant fold or fold assemblage zone, sedimentary boundary, stratigraphic and mineral occurrence boundary, natural geography and artificial boundary, etc.. The determination of each major boundary contains the definition of its interfaces or boundaries with specific meaning among 18 types of such interfaces or boundaries. The coal-bearing system boundary is determined based on the features of the boundaries with specific meaning as well as the boundary development, mineral assemblage and spatial distribution conditions of a specific region. Among these types of boundaries, some boundaries with specific meaning are the necessary conditions for determining the coal-bearing system boundary, while some boundaries are optional conditions.
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公开(公告)号：US12235257B2
公开(公告)日：2025-02-25
申请号：US18571358
申请日：2023-01-09
Inventor： Chenglin Tian , Qianting Hu , Haitao Sun , Xusheng Zhao
Abstract: A method of analyzing influencing factors of a contribution rate of elastic energy of a top plate during catastrophe of a coal body; the specific steps are: taking a core on site and processing the core into a standard test piece; obtaining, by means of an indoor mechanical test, elastic moduli of the top plate and of gas-containing coal, respectively; substituting the obtained elastic moduli and thicknesses of the top plate and of the gas-containing coal into a calculation formula so as to obtain the contribution rate of the elastic energy of the top plate; and analyzing the influence of the contribution rate of the elastic energy of the top plate in the two situations of configuring the same thickness ratio and a different elastic modulus ratio and the same elastic modulus ratio and a different thickness ratio. The method has important theoretical significance and practical engineering value.
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公开(公告)号：US20250034996A1
公开(公告)日：2025-01-30
申请号：US18818611
申请日：2024-08-29
Inventor： Weiyao GUO , Linpeng XU , Lexin CHEN , Yongqiang ZHAO , Bo LI , Chengzhi XIA , Chun ZHU , Gan LI , Lei ZHANG
IPC: E21D15/44
Abstract: An automatic support device for resisting rock burst in mines is provided, which includes bases symmetrically distributed, sliding frames are slidably connected to the bases, hydraulic rods are fixedly connected to the bases, and telescopic ends of the hydraulic rods are fixedly connected to the adjacent sliding frames. The sliding frames are fixedly connected to brackets, and the brackets symmetrically distributed are provided with a main support plate, on which pushing rods are provided. The device can slow down the impact force of the device when rock burst occurs in the mine, at the same time, it plays a supporting role in the mine, ensuring the stability of the roof of the mine.
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公开(公告)号：US12195359B2
公开(公告)日：2025-01-14
申请号：US17517825
申请日：2021-11-03
Inventor： Hongzhi Cui , Na Wei , Xiaojie Song , Ruiqi Xu , Zhenkui Li , Minggang Zhao , Kunyu Sun , Qi Li
IPC: C01G41/02 , B01D1/00 , C01G53/00 , C02F1/14 , C23C16/26 , C23C16/513 , B82Y30/00 , B82Y40/00 , C02F103/08
Abstract: A photothermal seawater desalination material with a multi-stage structure and a preparation method and application thereof. The photothermal seawater desalination material includes a light-absorbing material having a C/WO3-x heterogeneous junction, which is obtained by depositing a nano-C material on a porous metal foam material using plasma enhanced chemical vapor deposition (PECVD), and then synthesizing WO3-x with plasma resonance effect by a solvothermal reaction.
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50.发明授权公开(公告)号：US12158098B1
公开(公告)日：2024-12-03
申请号：US18745928
申请日：2024-06-17
Inventor： Bin Guo , Ziliang Zhao , Yifan Fu , Jun Zhao , Zhangu Wang , Jitai Yu , Senhao Shen
IPC: H01M10/615 , F01P3/20 , F01P5/10 , F01P7/14 , F02D41/06 , H01M8/04007 , H01M8/04029 , H01M8/04225 , H01M8/04302 , H01M8/0432 , H01M8/04746 , H01M10/625 , H01M10/6568 , H01M10/6571 , H01M16/00
Abstract: A thermal management system of a ship composite energy power system and a control method thereof are provided, including a thermal management circuit, which includes a seawater heat exchange circuit, an internal combustion engine thermal management circuit, a hydrogen fuel cell thermal management circuit, and a power battery and accessories thermal management circuit. It provides a thermal management control strategy for composite energy of internal combustion engine, fuel cell, and power battery; the various circuits can be independently adjusted; the heat dissipation effect is obvious, and the temperature of each cooling circuit can be better controlled; the energy utilization rate can be improved; the heat can be transferred to the other subsystems, and the heat dissipation area can be enlarged; and the fuel cell circuit can be elevated to the temperature by the heat exchanger and the electric heater, and it can reach the target working temperature more quickly.
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