Zobrazeno 1 - 10
of 454
pro vyhledávání: '"explosion-proof"'
Autor:
Yufang LIANG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 12, Pp 250-256 (2024)
In order to solve the problem of driving safety caused by the speed loss of mining vehicles in the downhill section of underground roadway, an intelligent electronic interception control system for stalling vehicles in coal mine is proposed based on
Externí odkaz:
https://doaj.org/article/b498d53f73f54be5a961dda75c5d81bb
Autor:
Jijian MENG
Publikováno v:
Meikuang Anquan, Vol 55, Iss 10, Pp 221-227 (2024)
Aiming at the promotion and application of 5G communication technology in coal mines, this paper analyzes the explosion prevention risk of radio frequency (RF) electromagnetic energy under the condition of far field radiation. In this paper, the equi
Externí odkaz:
https://doaj.org/article/0151213c7bd8491c95514b4aca790b70
Autor:
LI Chenxin
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 7, Pp 79-88 (2024)
Based on the current research results and practical experience of 5G in coal mines, this paper analyzes the research status and development direction of key technologies for 5G in coal mines from three aspects:5G private network architecture, coverag
Externí odkaz:
https://doaj.org/article/f61d31dd97324ee6ae7a98b90f31c5ca
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03518- (2024)
In this study, the dynamic response of a semi-buried steel vessel under a near-surface explosion shock load was investigated through full-scale model tests. A three-dimensional precise numerical simulation model of the semi-buried steel vessel struct
Externí odkaz:
https://doaj.org/article/cc56a4bce128491582eb2850db6c208a
Autor:
Lei ZHANG, Binzhan TANG, Jiusheng BAO, Zhiwei HU, Zhen PENG, Deping HU, Yan YIN, Xiaoming YUAN
Publikováno v:
Meitan xuebao, Vol 49, Iss 5, Pp 2547-2560 (2024)
Explosion-proof diesel engine is one of the most widely used power sources for auxiliary transportation vehicles in coal mines at present. It is affected by explosion-proof transformation and harsh underground environment, resulting in serious exhaus
Externí odkaz:
https://doaj.org/article/de5892ff31c14844bac9aa967a2f5126
Publikováno v:
Meitan kexue jishu, Vol 52, Iss 5, Pp 127-138 (2024)
In order to disclose the explosion venting processes of the air shaft and explore the venting enhancement methods in coal mines, a series of full-size 3D simulation models had been established for the current and several improved explosion venting me
Externí odkaz:
https://doaj.org/article/320f9b3f796e477f9642266bfefa4b8f
Autor:
SUN Jiping, PENG Ming
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 6, Pp 1-5, 22 (2024)
The current national standard GB/T 3836.1-2021 Explosive atmospheres-Part 1: Equipment-General requirements and the international standard IEC 60079-0:2017 Explosive atmospheres-Part 0: Equipment-General requirements stipulate that the threshold powe
Externí odkaz:
https://doaj.org/article/d677469e564d49e08d3e611951b45fa3
Publikováno v:
In Case Studies in Construction Materials December 2024 21
Autor:
SUN Jiping, PENG Ming
Publikováno v:
Gong-kuang zidonghua, Vol 50, Iss 3, Pp 1-5 (2024)
High power radio waves emitted by mobile communication systems such as 5G, 5.5G, WiFi6, WiFi7, UWB, ZigBee, as well as personnel and vehicle positioning systems in mines, pose a risk of igniting gas and coal dust. Therefore, it is necessary to set a
Externí odkaz:
https://doaj.org/article/1c907a99cb9d47e8b139c52f5d57e3c9
Autor:
Guofa WANG, Yihui PANG, Huaiwei REN, Kai ZHAN, Ming DU, Yong ZHANG, Jian CHENG, Yibo DU, Jianzhong ZHANG, Shixin GONG, Dandan WANG, Lingyu MENG, Jijian MENG
Publikováno v:
Meitan xuebao, Vol 49, Iss 1, Pp 181-202 (2024)
In order to overcome the problems existed in the construction process of complex giant system of smart mine, the overall technical framework of smart mine construction was proposed, and a detailed description was made from the aspects of smart mine s
Externí odkaz:
https://doaj.org/article/4b9ffe5ea8494993a1320309e5d02e86