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1.发明公开公开(公告)号：US20240175803A1
公开(公告)日：2024-05-30
申请号：US18432313
申请日：2024-02-05
发明人： Huawei JIN , Xu WANG , Haowei WANG
CPC分类号： G01N21/1702 , G01N1/14 , G01N33/0027 , G01N2021/1704 , G01N2201/06113 , G01N2201/0636
摘要： Disclosed is a synchronous detection system for a trace nitrogen-oxygen compound based on photoacoustic spectrometry, including a NOx (Nitrogen Oxide) detection air channel, a dust detection air channel and a double-photoacoustic spectrometry detection mechanism which are mutually connected in parallel; the NOx detection air channel includes a background interference detection air pipe, a NO2 detection air pipe and a NO detection air pipe that are mutually connected in parallel, and a NOx photoacoustic detection cavity; and the dust detection air channel includes a dust detection air pipe and a dust photoacoustic detection cavity communicating with the dust detection air pipe.
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公开(公告)号：US11940376B2
公开(公告)日：2024-03-26
申请号：US18147236
申请日：2022-12-28
发明人： Huawei Jin , Fangzheng Yan , Lei Fang
CPC分类号： G01N21/1702 , G01N1/24 , G01N33/0027 , G01N2021/1704 , G01N2201/06113
摘要： A system for detecting a concentration of free SiO2 in coal dust includes a first sampling tube and a second sampling tube for sampling the coal dust, a three-way control valve communicated with the first sampling tube and the second sampling tube respectively, a photoacoustic spectrometry detection device communicated with the three-way control valve through a connecting pipeline, and a SiO2 reaction tube for reacting SiO2 in the coal dust; and the SiO2 reaction tube is disposed on the second sampling tube. In the present disclosure, a coal dust sampling line is convenient to change by disposing the three-way control valve, and the first sampling tube and the second sampling tube are respectively communicated with the photoacoustic spectrometry detection device, so as to perform a differential accurate detection of the reacted CO content, and to obtain the SiO2 content.
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公开(公告)号：US20240068359A1
公开(公告)日：2024-02-29
申请号：US18505882
申请日：2023-11-09
发明人： Shaobo LI , Lei WANG , Xingang NIU , Chuanqi ZHU , Zhenyu YANG , Lipeng CHEN , Yu ZHANG
摘要： Disclosed is a method for measuring gas pressure of a close-distance seam group simultaneously, including the following steps: constructing a pressure-measuring drill hole inclined downwards; lowering a first seam piezometer tube, lowering a baffle and a polyurethane blocking material after a tube head reaching a lowermost seam; and installing a gas pressure gauge; lowering a second seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a second layer of seam; and installing the gas pressure gauge; lowering a nth seam piezometer tube, lowering the baffle and the polyurethane blocking material after the tube head reaching a nth layer of seam; and installing the gas pressure gauge; injecting a high-water and quick-solidifying material into the drill hole; and connecting the gas pressure gauges through optical fibers, and connecting the gas pressure gauges with a ground control system.
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公开(公告)号：US11873719B2
公开(公告)日：2024-01-16
申请号：US17616875
申请日：2020-07-14
申请人： Anhui University of Science and Technology , PINGAN COAL MINING ENGINEERING RESEARCH INSTITUTE CO., LTD.
发明人： Liang Yuan , Qinghua Chen , Bingyou Jiang , Jinwei Qiu , Mingyun Tang , Bo Ren , Mingqing Su
摘要： A gas-liquid spray dust settlement system for a fully mechanized mining face includes an atomization humidification subsystem, a boundary mist curtain subsystem, and a dust mist recycling subsystem that are all arranged outside the fully mechanized mining face, where the boundary mist curtain subsystem includes high-pressure blade nozzles mounted to hydraulic supports. The atomization humidification subsystem includes a spray dust settler mounted to a rocker arm of a coal cutter and configured to spray water mist completely covering the high-pressure blade nozzle. The dust mist recycling subsystem includes a wind-water linkage dust remover mounted to a semi-encircling support base, arranged under the spray dust settler, and configured to collect the water mist sprayed by the spray dust settler.
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公开(公告)号：US11780116B2
公开(公告)日：2023-10-10
申请号：US17365296
申请日：2021-07-01
发明人： Liang Wang , Zhiqiang Liu , Hao Wang , Wenfeng Shen , Ying Xu , Yubiao Wei , Fan Yang
CPC分类号： B28C5/12 , B28C5/003 , B28C7/0007
摘要： Methods for modifying a recycled fine powder of concrete and uses thereof. A method for modifying a recycled fine powder can include: crushing a collected waste concrete block with a crusher, grinding with a ball mill, and passing through a 100-mesh sieve, to obtain a recycled fine powder with d50 of 13.5 μm; placing the obtained recycled fine powder in a dry environment at a high temperature, drying, then taking out, and cooling to room temperature; preparing tannic acid solutions with different concentrations, mixing the cooled recycled fine powder with the prepared tannic acid solutions, and continuously stirring by a glass rod.
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公开(公告)号：US11662301B1
公开(公告)日：2023-05-30
申请号：US17984859
申请日：2022-11-10
发明人： Huawei Jin , Lei Fang , Haowei Wang
CPC分类号： G01N21/1702 , E21F17/18 , G01N1/24 , G01N2021/1704 , G01N2201/06113
摘要： Disclosed are a mine dust real-time detection system based on double-photoacoustic spectrometry and a detection method. The mine dust real-time detection system based on double-photoacoustic spectrometry includes a first sampling unit, a first photoacoustic detection cavity, a second sampling unit, a second photoacoustic detection cavity, a signal unit and a processing unit; the first sampling unit is used for sampling in respective, the first photoacoustic detection cavity provides a photoacoustic effect field to substances sampled by the first sampling unit, the second sampling unit is used for sampling in respective, the second photoacoustic detection cavity provides the photoacoustic effect field to substances sampled by the second sampling unit, the signal unit is used for providing a laser signal, and the processing unit is used for collecting and processing a photoacoustic signal.
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公开(公告)号：US20220316336A1
公开(公告)日：2022-10-06
申请号：US17616875
申请日：2020-07-14
申请人： ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY , PINGAN COAL MINING ENGINEERING RESEARCH INSTITUTE CO., LTD.
发明人： Liang YUAN , Qinghua CHEN , Bingyou JIANG , Jinwei QIU , Mingyun TANG , Bo REN , Mingqing SU
摘要： The present invention relates to the field of dust settlement systems, and discloses a gas-liquid spray dust settlement system for a fully mechanized mining face. A gas-liquid spray dust settlement system for a fully mechanized mining face includes an atomization humidification subsystem, a boundary mist curtain subsystem, and a dust mist recycling subsystem that are all arranged outside the fully mechanized mining face, where the boundary mist curtain subsystem includes high-pressure blade nozzles mounted to hydraulic supports, the atomization humidification subsystem includes a spray dust settler mounted to a rocker arm of a coal cutter and configured to spray water mist completely covering the high-pressure blade nozzle, the dust mist recycling subsystem includes a wind-water linkage dust remover mounted to a semi-encircling support base, arranged under the spray dust settler, and configured to collect the water mist sprayed by the spray dust settler. Compared with the prior art, the dust settlement system according to this application can enhance a dust settling effect and effectively control a dust concentration of the fully mechanized mining face or even an entire mining area.
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公开(公告)号：US20220136947A1
公开(公告)日：2022-05-05
申请号：US17506648
申请日：2021-10-20
发明人： Jinbo ZHU , Chao WANG , Yongcun Guo , Yong Zhang , Hongzheng Zhu , Wei Zhou , Ke Yang
摘要： A coal and gangue identification device is disclosed. The device includes a rotary supporting frame, a water injection unit, a weighing unit, a liquid level detection device and a processing module. The rotary supporting frame is provided with a loading unit used to load a mineral aggregate. The rotary supporting frame is used to drive the loading unit to rotate on a horizontal plane. In the rotating process of the rotary supporting frame, the loading unit cyclically passes through a water injection region, a material adding region, a volume measurement region and an unloading region which are sequentially disposed on a rotation trajectory of the rotary supporting frame. The water injection unit is used to inject water to the loading unit of the water injection region.
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公开(公告)号：US20210372282A1
公开(公告)日：2021-12-02
申请号：US17021780
申请日：2020-09-15
发明人： Yongcun GUO , Haishun DENG , Guoyong SU , Shuang WANG , Kun HU , Tianbing MA , Tun YANG , Peng YANG
IPC分类号： E21D20/00 , E21B15/00 , E21B19/083
摘要： The present invention discloses an anchor supporting intelligent device, belonging to the field of electromechanical devices for fully mechanized working faces. The device includes four parts of net supporting systems, anchoring systems, ground supporting systems and power and turning systems. The net supporting system is installed above the ground supporting system. The anchoring system is installed below a main beam and a middle main beam in the net supporting system through screws. The ground supporting system is installed below the main beam and the middle main beam in the net supporting system to provide support for the whole device. Two ends of the power and turning system are respectively connected with the main beam and the middle main beam in the net supporting system in a mode of pin connection. Further, the device disclosed by the present invention is small in volume and compact in structure, has functions of cooperative operation of multiple anchor rods and auxiliary paving of anchor nets, and is high in anchoring efficiency. Moreover, the device adopts a stepping moving mode, so that the device is smooth in operation, flexible in turning and good in maneuverability.
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10.发明授权公开(公告)号：US10882700B1
公开(公告)日：2021-01-05
申请号：US16967735
申请日：2019-09-12
申请人： China University of Mining and Technology , ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY , HUAIHAI INSTITUTE OF TECHOLOGY
发明人： 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
摘要： 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.
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