Results 31 to 40 of about 2,483,836 (160)
Study on the perception and alarm method of coal mine rock burst and coal and gas outburst
Gong-kuang zidonghua, 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 of ...
SUN Jiping, CHENG Jijie
doaj +1 more source
Analysis and countermeasures of coal mine safety in Guizhou Province
Meikuang Anquan, 2021 In order to carry out coal mine production scientifically, safely and efficiently, and improve the overall production level of coal mine safety in Guizhou Province, this paper applies statistical methods to carry out the analysis of coal mine safety ...
SUN Guangyu, YANG Fuling, QI Chaoxin
doaj +1 more source
Computer application for facilitating the choice of Ex equipment [PDF]
MATEC Web of Conferences, 2022 If electrical and non-electrical equipment used in underground mines susceptible to firedamp and coal dust or in other industries with explosion hazard is not proper selected for operating in explosive atmospheres, they are likely to generate an ignition
Pasculescu Vlad Mihai +3 more
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Study of hybrid mixture explosions [PDF]
, 2010 The work of this thesis aims at studying the explosive phenomenon of hybrid mixtures to get insights into the driving mechanisms and the explosion features affecting the course of hybrid mixture explosion.
Garcia Agreda, Anita
core +1 more source
Research on alarm method of coal mine extraordinary accidents based on sound recognitio
Gong-kuang zidonghua, 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.
SUN Jiping, YU Xingche
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Meitan kexue jishuGas/coal dust composite explosion is a complex process that combines homogeneous and heterogeneous combustion. The combustion main control mechanism changes dynamically and the explosion mechanism is more complex, resulting in higher explosion ...
Wentao JI +5 more
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High Prevalence of Respiratory Symptoms Among Workers in the Development Section of a Manually Operated Coal Mine in a Developing Country: A Cross Sectional Study. [PDF]
, 2007 Few studies of miners have been carried out in African countries; most are from South Africa, where the working conditions are assumed to be better than in the rest of Africa.
Mamuya, Simon H D +9 more
core +1 more source
Gong-kuang zidonghua, 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 pressure ...
SUN Jiping
doaj +1 more source
Coal mine safety production management countermeasures of Jinglaoyuan Coal Mine of Tiemei Group
Meikuang Anquan, 2021 Aiming at the dangerous and harmful factors existing in the production process of Jinglaoyuan Coal Mine of Tiemei Group, this paper makes a comprehensive analysis through field investigation, combines with the geological conditions, development layout ...
CHEN Lijie, SUN Jiahe, ZHAO Qian
doaj +1 more source
Progress, Challenges, and Outlook for Sodium‐Ion Battery Recycling
CleanMat, EarlyView.This review highlights the progress and challenges of sodium‐ion batteries (SIBs) recycling. It introduces the main material systems of SIBs and their degradation, outlines economic, technical, and environmental requirements, and evaluates four major strategies: pretreatment, pyrometallurgy, hydrometallurgy, and direct regeneration.
Yihao Shen +3 more
wiley +1 more source