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Air flow character and gas mathematical mode of heading laneway in coalmine is researched in detail to tackle with normal ventilation and gas discharging problem. Combining with ventilation requirements and safety regulation in coalmine, control strategy which aims at both safety and energy saving is established at length. Moreover, conventional double fuzzy control model is found to carry out two...
The currently-used mine main fan switchover is to stop the working fan first and then to start standby fan, which makes underground ventilation interruption during switching, and it is liable to cause gas concentration exceeding limits in high gas mine and threaten mine production safety. Based on the thought of changing the fan on standby from cold standby to hot standby before switchover, a novel...
Ventilation interruption in high gas mine during main fan switchover in the way currently-used that working fan stops at first and standby fan starts later is liable to cause gas concentration exceeding limit. In the paper, a novel way to realize ventilation unceasing during main fan switchover is put forward, in which, contrary to the way currently-used, standby fan was required to be started before...
It is necessary to guarantee that timely diagnosis of fans of coal fault is for mine safety production in enterprises. To establish fans of coal fault diagnosis expert system is a kind of effective way for improving fans fault diagnosis. The roughness set is applied to fans fault expert system for knowledge; this way can improve the objectivity of mining knowledge, which to establish effectively fans...
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