Zobrazeno 1 - 10
of 45
pro vyhledávání: '"gas and coal dust explosion"'
Autor:
Xingchen YU, Xiaowei LI
Publikováno v:
Meitan kexue jishu, Vol 52, Iss S1, Pp 70-79 (2024)
To solve the problems of high false alarm rate and leakage rate of coal mine gas and coal dust explosion disaster alarm methods, and improve the accuracy of coal mine gas and coal dust explosion perception, sound identification method of coal mine ga
Externí odkaz:
https://doaj.org/article/a230da4e81da474aab90daec944fd4aa
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
The continuous development of coal science and technology has made gas and coal dust explosion disasters an important factor that restricts efficient and intelligent coal mining, which seriously threatens the safe production process of coal mines. To
Externí odkaz:
https://doaj.org/article/5f352886cb5c4e009db160b10390aeef
Publikováno v:
Meitan kexue jishu, Vol 51, Iss 2, Pp 366-376 (2023)
In order to improve the detection accuracy of coal mine gas and coal dust explosion, recognition method of coal mine gas and coal dust explosion based on the sound spectrogram and SVM was proposed: installing mining pickups in key monitoring areas of
Externí odkaz:
https://doaj.org/article/9f6a27b241f5464caab7e2c35396fafc
Autor:
YU Xingchen, WANG Yunquan
Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 1, Pp 131-139 (2023)
At present, it is difficult to meet the emergency rescue needs of gas and coal dust explosion accidents due to the rate of missing and false alarms in coal mine gas and coal dust explosion monitoring. In order to solve the above problems, a coal mine
Externí odkaz:
https://doaj.org/article/b127372913634119b8454d12cb815bb1
Akademický článek
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Publikováno v:
Gong-kuang zidonghua, Vol 49, Iss 3, Pp 1-5, 114 (2023)
The characteristics of coal mine gas and coal dust explosion are analyzed. The gas concentration changes suddenly. The ambient temperature rises rapidly. The air pressure rises suddenly. It produces fireballs and smoke. It produces strong infrared an
Externí odkaz:
https://doaj.org/article/4db371390a944894b3f0606781b71a85
Autor:
SUN Jiping, CHENG Jijie
Publikováno v:
Gong-kuang zidonghua, Vol 48, Iss 1, Pp 1-6 (2022)
The paper puts forward a perception and alarm method of rock burst and coal and gas outburst based on temperature. The infrared thermal imager is used to monitor the temperature of objects, and the methane sensor is used to monitor the concentration
Externí odkaz:
https://doaj.org/article/94a1910ffc12442eaa1c1e4d376988c7
Autor:
Xingchen Yu, Xiaowei Li
Publikováno v:
Entropy, Vol 25, Iss 8, p 1184 (2023)
To solve the problems of backward gas and coal dust explosion alarm technology and single monitoring means in coal mines, and to improve the accuracy of gas and coal dust explosion identification in coal mines, a sound identification method for gas a
Externí odkaz:
https://doaj.org/article/9d7487d8d40a49bb933d52e7a843d1bc
Autor:
SUN Jiping, YU Xingche
Publikováno v:
Gong-kuang zidonghua, Vol 47, Iss 2, Pp 1-5 (2021)
Coal mine gas and coal dust explosion will produce explosive sound. Coal and gas outburst will produce the sound of coal cannon and the supports will produce squeaking and cracking sound. Rock burst will produce huge rock breaking sound and vibration
Externí odkaz:
https://doaj.org/article/01ef51a9e6b943cda0269a3ec9c0e3bc
Autor:
SUN Jiping
Publikováno v:
Gong-kuang zidonghua, Vol 46, Iss 6, Pp 1-5 (2020)
Characteristics of coal mine gas and coal dust explosion are analyzed: Concentration of O2 in air decreases rapidly, while concentrations of CO2, CO and other toxic and harmful gases increase rapidly; Ambient temperature rises rapidly, and air pressu
Externí odkaz:
https://doaj.org/article/5813b46bf9664c44817b5ab3674549fc