CAJ | 학술논문

矿井通风难易程度是通风系统设计、评价和优化的重要指标. 分析了原等积孔由于通风路线增长,需风量增大而风压增加有限导致失效的问题. 基于缪尔格等积孔评价方法和已有的等积孔修正方法,提出了一种新的修正方法,综合考虑了自然风压、外部漏风,以及用风地点风量、风速、温度和空气质量等多种因素对通风系统的影响. 并对山东某矿通风难易程度进行了分析评价,评价结果符合矿井实际情况.
광정통풍난역정도시통풍계통설계、평개화우화적중요지표. 분석료원등적공유우통풍로선증장,수풍량증대이풍압증가유한도치실효적문제. 기우무이격등적공평개방법화이유적등적공수정방법,제출료일충신적수정방법,종합고필료자연풍압、외부루풍,이급용풍지점풍량、풍속、온도화공기질량등다충인소대통풍계통적영향. 병대산동모광통풍난역정도진행료분석평개,평개결과부합광정실제정황.
The mine ventilation difficulty degree is an important index of the ventilation system design, evaluation and optimization. In this paper, analyses was made on the failure problem of the original equivalent orifices due to the increase of the ventilation route, the increase of the required air quantity and the limitation of the air pressure increase. For this purpose, a new correction method was proposed according to the evaluation method of Murgue equivalent orifice and the correction and discussion of the existing equivalent orifices, which comprehensively considered the influence of the natural air pressure, the external air leakage, the air quantity, and air velocity, temperature and air quality in the ventilation places as well as other factors on the ventilation system. Analysis and evaluation were carried out on the ventilation difficulty degree of a coal mine in Shandong Province, and the evaluation results were in accordance with the actual situation of the mine.