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公开(公告)号：US20190101643A1
公开(公告)日：2019-04-04
申请号：US16086425
申请日：2018-01-16
Inventor： Fanlin YANG , Xiankun WANG , Donghui LI , Qianqian LI , Bo SHI , Dong JING , Xiushan LU , Xiaodong CUI
IPC: G01S15/89
Abstract: A device and a method for detecting main acoustic indexes of multi-beam sonar pertaining to the field of hydrographic surveying and charting technology. The device includes a rotating device and a lifting gear installed in an anechoic tank. The bottom of the rotating device is equipped with a multi-beam sonar that has its rotating plane perpendicular to the direction of track line and transmits signals along the horizontal direction. A standard hydrophone is equipped at the bottom of the lifting gear, and is connected with a signal collector. The device utilizes the standard hydrophone to receive the pulse signals transmitted by the multi-beam sonar and employs the multi-beam sonar to receive the standard sound source signals, designs the detection process for data collection for analysis and research, thereby achieving the detection of the frequency, source level and beam angle of multi-beam sonar.
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公开(公告)号：US12221889B2
公开(公告)日：2025-02-11
申请号：US18757706
申请日：2024-06-28
Inventor： Song Xin , Shangxiao Liu , Wanrong Xu , Shurong Lei
Abstract: A mine cooling and dehumidifying system includes a compressor, a gas-liquid separator, an evaporator, a condenser and an expansion valve. The evaporator is in an air supply well, and the condenser is in a return air well; the compressor, the gas-liquid separator and the expansion valve are all between the air supply well and the return air well; an inlet of the compressor is connected to a refrigerant outlet of the evaporator through the gas-liquid separator, and a refrigerant inlet of the evaporator is connected with an outlet of the expansion valve; an inlet of the expansion valve is connected with a refrigerant outlet of the condenser, and a refrigerant inlet of the condenser is connected with an outlet of the compressor. In the present disclosure, by vapor compression type refrigeration cycle, the downhole air heat is transferred to the return air and then discharged to the ground.
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123.发明授权公开(公告)号：US12196837B2
公开(公告)日：2025-01-14
申请号：US18515444
申请日：2023-11-21
Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , SHANDONG YUFEI TRANSMISSION TECHNOLOGY CO., LTD
Inventor： Wenhong Li , Yi Zhang , Fansheng Meng , Tianyu Zhu , Hongmei Tang , Luqun Zhu , Jianyu Guo , Wenlong Zhang , Xixin Liu
Abstract: The present disclosure provides a method of perceiving a position and pose of a hydraulic support group based on multi-point ranging and belongs to the field of test or measurement technologies unlisted in other categories. The method uses a hydraulic support group. The hydraulic support group includes multiple juxtaposed hydraulic supports. The method includes: with a plane above a base as a reference plane, establishing a reference coordinate system; perceiving a relative position of the base and a canopy of the hydraulic supports and perceiving a position and pose of a single hydraulic support; when the hydraulic supports have axial offset and roll phenomenon, performing offset amount calculation; based on the perception of the position and pose of single hydraulic supports, performing perception on the position and pose of the hydraulic support group. In the present disclosure, the measurement devices achieve conversion of pure distance information into three-dimensional pose information of an object in time and space by using logical combination of several real-time ranging terminals, leading to simple structure; there is no interference between measurement devices, and there is wireless connection between a signal transmitting device and a signal receiving device, resulting in no rendezvous point and being free from impact of frictional force.
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公开(公告)号：US20250014479A1
公开(公告)日：2025-01-09
申请号：US18219118
申请日：2023-07-07
Inventor： Wei ZHANG
IPC: G09B19/18
Abstract: A multifunctional teaching demonstration device for economic management is provided. It includes a folding device the back of the folding device is provided with multiple folding components, the front of the folding device is provided with a display, the front of the display is flexibly connected to a transparent board, the left side of the display is flexibly connected to the first demonstration module, the right side of the display is flexibly connected to the second demonstration module, there are two first teaching aid cabinets under the first demonstration module and the second demonstration module, the bottom of the first teaching aid cabinets is flexibly connected to the second teaching aid cabinet.
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公开(公告)号：US12174153B2
公开(公告)日：2024-12-24
申请号：US18571767
申请日：2023-01-09
Inventor： Chenglin Tian , Qianting Hu , Haitao Sun
Abstract: The present disclosure discloses a method for estimating a contribution rate of elastic energy of a top plate during instability catastrophe of a deep gas-containing coal body, which specifically includes the following steps: acquiring gas pressure of a coal seam; acquiring a thickness of the coal seam and the top plate according to a borehole histogram; coring in the field, processing and pre-processing coal samples, and acquiring an elastic modulus of the top plate, gas-containing coal and standard specimens of a gas-containing coal-rock combination through indoor mechanical tests, respectively; deducing contribution of the elastic energy of the top plate with the help of a graphic area for a stress-strain curve, and obtaining a quantitative expression of the contribution rate of the elastic energy of the top plate based on the elastic modulus and the thickness of the top plate and the gas-containing coal. According to the present disclosure, the function of the elastic energy of the top plate in coal-rock gas dynamic disasters is taken into full account, and a calculation method and a specific quantitative calculation formula are given, so that the function of the elastic energy of the top plate in disasters can be more clearly understood, and beneficial reference is provided for accurate prevention and control of coal-rock gas dynamic disasters in mines.
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Patent Agency Ranking
公开(公告)号：US12172927B2
公开(公告)日：2024-12-24
申请号：US18502117
申请日：2023-11-06
Inventor： Lihua Wang , Chunfeng Li , Zhijie Wen , Zengguang Pang , Xiaoming Fan , Qinghua Shu , Shifu Sun , Qingbiao Wang , Chunquan Dai , Weiwei Han , Shunrong Wang
IPC: C04B28/00 , C04B24/16 , C04B40/00 , C04B40/06 , C04B103/00 , C04B111/70
Abstract: It discloses a sustained release grouting material, a preparation method and an application thereof; the sustained release grouting material comprises a water swelling core and a water-soluble sustained release coating, the water swelling core is composed of bentonite, SAP and xanthan gum, which is granulated by disc granulator relying on the cohesiveness of xanthan gum; the water-soluble sustained-release coating is prepared by mixing water-soluble starch, polyvinyl alcohol, poloxamer, lubricant and plasticizer with deionized water to obtain a film-forming solution, and the film-forming solution is coated on a coating machine; the invention uses a coating machine to coat a layer of slow-release coating on the surface of the water-absorbing expansion core, and adjusts the coating thickness by controlling the mass ratio of the coating film-forming liquid to the water-absorbing expansion core particles, so as to realize the controllable water absorption onset time of the expansion core.
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127.发明申请公开(公告)号：US20240369695A1
公开(公告)日：2024-11-07
申请号：US18515444
申请日：2023-11-21
Applicant: SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , SHANDONG YUFEI TRANSMISSION OF TECHNOLOGY Co, LTD.
Inventor： Wenhong LI , Yi ZHANG , Fansheng MENG , Tianyu ZHU , Hongmei TANG , Luqun ZHU , Jianyu GUO , Wenlong ZHANG , Xixin LIU
Abstract: The present disclosure provides a method of perceiving a position and pose of a hydraulic support group based on multi-point ranging and belongs to the field of test or measurement technologies unlisted in other categories. The method uses a hydraulic support group. The hydraulic support group includes multiple juxtaposed hydraulic supports. The method includes: with a plane above a base as a reference plane, establishing a reference coordinate system; perceiving a relative position of the base and a canopy of the hydraulic supports and perceiving a position and pose of a single hydraulic support; when the hydraulic supports have axial offset and roll phenomenon, performing offset amount calculation; based on the perception of the position and pose of single hydraulic supports, performing perception on the position and pose of the hydraulic support group. In the present disclosure, the measurement devices achieve conversion of pure distance information into three-dimensional pose information of an object in time and space by using logical combination of several real-time ranging terminals, leading to simple structure; there is no interference between measurement devices, and there is wireless connection between a signal transmitting device and a signal receiving device, resulting in no rendezvous point and being free from impact of frictional force.
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128.发明公开公开(公告)号：US20240319057A1
公开(公告)日：2024-09-26
申请号：US18560982
申请日：2022-12-08
Inventor： Tongbin ZHAO , Minglu XING , Chunlin LI , Yanchun YIN , Bin LIU , Fenghai YU , Wenli LIU , Yubao ZHANG , Weiyao GUO , Yaxin LIU , Xiaohao WANG , Longfei LI
Abstract: The present disclosure provides a test system and method for an anchoring performance of a full-size rock mass anchor bolt under combined load and relates to the technical field of detection test equipment. The system includes a primary frame, a co-directional pull-twist loading mechanism and a vertical shear loading mechanism. The primary frame includes a dual-parallel horizontal reaction frame and a vertical reaction frame. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism are arranged in synergy with the primary frame. The co-directional pull-twist loading mechanism performs synchronous pull and twist loading for the anchored rock mass and the vertical shear loading mechanism applies a static load or simulates a dynamic load disturbance. The co-directional pull-twist loading mechanism and the vertical shear loading mechanism perform separate loading. By using the test system, anchor bolt pull test, pull-twist test of the anchor bolt body, pull-twist-shear test of the anchor bolt body and test of the anchor bolt and the anchored rock mass are performed and also a coupled load of pull, shear and twist is performed on a same anchored fracture surface to effectively test the comprehensive mechanical performance of the anchor bolt member in the rock mass under combined stress.
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129.发明授权公开(公告)号：US12085004B1
公开(公告)日：2024-09-10
申请号：US18395886
申请日：2023-12-26
Inventor： Wen Nie , Chengyi Liu , Yun Hua , Weimin Cheng , Xiao Yan , Fengning Yu , Zilian Zhu , Jie Lian , Chenwang Jiang , Chuanxing Cheng , Haonan Zhang
CPC classification number: F01N3/2892 , F01N3/033 , F01N3/035 , F01N3/037 , F01N3/24 , F01N13/009 , F01N2330/38 , F01N2470/30 , F01N2560/026 , F01N2590/08 , Y02A50/20
Abstract: A swirl structure-based exhaust aftertreatment device for an underground mining diesel vehicle comprises a water tank, a PM collection tank, an inlet tube, a high-speed rotary exhaust separator, an exhaust catalytic converter, a circulating NOx selective catalytic reduction system and an exhaust tube. The high-speed rotary exhaust separator comprises a Laval tube, a throat tube, a swirl tube and a first deposition tube. The concentration of toxic and harmful components in exhaust can be decreased below a concentration threshold, thus avoiding pipeline blockage caused by PM accumulation.
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130.发明公开公开(公告)号：US20240264054A1
公开(公告)日：2024-08-08
申请号：US18571767
申请日：2023-01-09
Inventor： Chenglin TIAN , Qianting HU , Haitao SUN
CPC classification number: G01N3/08 , G01N3/066 , G01N33/24 , G01N2203/0067
Abstract: The present disclosure discloses a method for estimating a contribution rate of elastic energy of a top plate during instability catastrophe of a deep gas-containing coal body, which specifically includes the following steps: acquiring gas pressure of a coal seam; acquiring a thickness of the coal seam and the top plate according to a borehole histogram; coring in the field, processing and pre-processing coal samples, and acquiring an elastic modulus of the top plate, gas-containing coal and standard specimens of a gas-containing coal-rock combination through indoor mechanical tests, respectively; deducing contribution of the elastic energy of the top plate with the help of a graphic area for a stress-strain curve, and obtaining a quantitative expression of the contribution rate of the elastic energy of the top plate based on the elastic modulus and the thickness of the top plate and the gas-containing coal. According to the present disclosure, the function of the elastic energy of the top plate in coal-rock gas dynamic disasters is taken into full account, and a calculation method and a specific quantitative calculation formula are given, so that the function of the elastic energy of the top plate in disasters can be more clearly understood, and beneficial reference is provided for accurate prevention and control of coal-rock gas dynamic disasters in mines.
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