高海拔地区矿井风机状态动态评估

doi:10.11872/j.issn.1005-2518.2020.06.092

Abstract

Abstract:

Mine fans at high altitude region plays an extremely important role in the mining process of mineral resources.The mine fans provide a guarantee for the safe mining of mineral resources by providing fresh air and eliminating toxic and harmful gases，so they are an important part of safe production.It is of great practical significance to carry out a scientific assessment of the operation status of mine fans to promote the safety management of mine fans. In view of the complexity of the environment in which plateau mines are located，the mine fans evaluation index system was constructed，including one overall objective，four middle factors and sixteen criteria. Due to the uncertainty in the calculation process of the index weights，the weighted interval was calculated using the analytic hierarchy process （IAHP）. In order to obtain the accurate index weights，the 3-element connection number was used to convert the interval weights into accurate weights.Therefore，the uncertainty in the process of obtaining index weights can be effectively resolved，making the index weights more reasonable. In addition，the establishment of five-element identical-discrepancy-contrary evaluation model realizes the purpose of static assessment of the mine fan.The partial connection number theory in the set pair theory is introduced to predict and evaluate the operation state of the mine fan.Thereby realizing the static and dynamic evaluation for fans at high altitude region.The operation status of the mine fans is evaluated from the static and dynamic dimensions，making the evaluation results more practical.Finally，an example of a mine fan in Yunnan Province was introduced to verify the applicability and effectiveness of the method.The evaluation result of the operation state of the mine fans is medium level. In addition，the operation state of the mine fans was analyzed using partial connection number.Therefore，the future development trend of the indicators of mine fans can be predicted.The analysis results show that these indicators，namely environmental humidity，external structure status and personnel’s physical condition，will decline sharply in the future.Therefore，those should be classified as high risk factors，and corresponding management measures and technical measures should be proposed to improve the operation status of the fan.The evaluation results provide an important reference for the safety management of mine fans in the plateau area，and can effectively prevent the accidents caused by the poor operation of mine fans.Therefore，the method proposed can be used to evaluate the status of mine fans in the plateau area，which can not only grasp the current operation status of the fan，but also predict the development trend of the future status of the fan.The targeted suggestions for fault diagnosis，risk management and optimization of mine fans in the plateau area can be put forward.

Key words: plateau mine fans, set pair analysis, partial connection number, status evaluation, the uncertainty interval analytic hierarchy process, metal mines

CLC Number:

X936

Lipeng WANG,Fang YAN,Zijun LI,Fang WANG. Dynamic Status Evaluation of Main Fans of Mine at High Altitude Region[J].Gold Science and Technology, 2020, 28(6): 930-939.

Figures/Tables 8

Fig.1

Table 1

Table 2

Evaluation results of mine fans"

二级指标	三级指标	静态联系数	集对势
环境因素A	环境温度A₁	0.01+0.30i₁+0.40i₂+0.10[i₃+0.1j	均势
	环境湿度A₂	0.00+0.30i₁+0.40i₂+0.20i₃+0.10j	均势
	大气压力A₃	0.00+0.30i₁+0.40i₂+0.20i₃+0.10j	均势
	$μ$	0.01+0.30i₁+0.40i₂+0.19i₃+0.10j	均势
管理因素B	管理制度B₁	0.30+0.20i₁+0.30i₂+0.10i₃+0.10j	偏同势
	应急方案B₂	0.20+0.40i₁+0.30i₂+0.00i₃+0.10j	均势
	人员分配B₃	0.10+0.30i₁+0.30i₂+0.30i₃+0.00j	均势
	$μ$	0.16+0.31i₁+0.30i₂+0.18i₃+0.04j	偏同势
风机因素C	外部结构C₁	0.10+0.20i₁+0.30i₂+0.10i₃+0.30j	偏反势
	保护设施C₂	0.00+0.30i₁+0.30i₂+0.30i₃+0.10j	均势
	监控系统C₃	0.30+0.30i₁+0.10i₂+0.10i₃+0.20j	均势
	维修措施C₄	0.10+0.30i₁+0.30i₂+0.20i₃+0.10j	均势
	能耗状态C₅	0.10+0.30i₁+0.50i₂+0.00i₃+0.10j	均势
	通风效率C₆	0.10+0.20i₁+0.40i₂+0.20i₃+0.10j	均势
	$μ$	0.11+0.24i₁+0.34i₂+0.12i₃+0.19j	偏同势
人的因素D	心理状况D₁	0.10+0.30i₁+0.40i₂+0.00i₃+0.20j	均势
	身体状况D₂	0.00+0.10i₁+0.30i₂+0.40i₃+0.20j	偏反势
	工作能力D₃	0.20+0.10i₁+0.40i₂+0.10i₃+0.20j	均势
	教育水平D₄	0.20+0.40i₁+0.20i₂+0.10i₃+0.10j	均势
	$μ$	0.11+0.21i₁+0.38i₂+0.12i₃+0.18j	均势
$μ C N$		0.06+0.27i₁+0.37i₂+0.16i₃+0.14j	均势

Table 2

Table 3

Calculation results of partial connection number"

一级指标	二级指标	一阶偏联系数	趋势	二阶偏联系数	趋势	三阶偏联系数	趋势	四阶偏联系数	趋势
环境因素 A	环境温度A₁	0.25+0.43i₁+0.80i₂+0.50i₃	下降	0.37+0.35i₁+0.62i₂	下降	0.51+0.36i₁	上升	0.59	上升
	环境湿度A₂	0.00+0.43i₁+0.67i₂+0.67i₃	下降	0.00+0.39i₁+0.50i₂	下降	0.00+0.44i₁	下降	0.00	过渡
	大气压力A₃	0.00+0.43i₁+0.67i₂+0.67i₃	下降	0.00+0.39i₁+0.50i₂	下降	0.00+0.44i₁	下降	0.00	过渡
	$μ$	0.03+0.43i₁+0.68i₂+0.66i₃	下降	0.07+0.39i₁+0.51i₂	下降	0.63+0.37i₁	下降	0.26	上升
管理因素 B	管理制度B₁	0.60+0.40i₁+0.75i₂+0.50i₃	上升	0.60+0.35i₁+0.60i₂	下降	0.63+0.37i₁	上升	0.63	上升
	应急方案B₂	0.33+0.57i₁+1.00i₂+0.00i₃	上升	0.37+0.36i₁+1.00i₂	下降	0.50+0.27i₁	上升	0.65	上升
	人员分配B₃	0.25+0.50i₁+0.50i₂+1.00i₃	下降	0.33+0.50i₁+0.33i₂	下降	0.40+0.60i₁	下降	0.40	上升
	$μ$	0.34+0.51i₁+0.63i₂+0.82i₃	下降	0.40+0.45i₁+0.43i₂	下降	0.47+0.51i₁	下降	0.48	上升
风机因素 C	外部结构C₁	0.33+0.40i₁+0.75i₂+0.25i₃	上升	0.45+0.35i₁+0.75i₂	下降	0.57+0.32i₁	上升	0.64	上升
	保护设施C₂	0.00+0.50i₁+0.50i₂+0.75i₃	下降	0.00+0.50i₁+0.40i₂	下降	0.00+0.56i₁	下降	0.00	过渡
	监控系统C₃	0.50+0.75i₁+0.50i₂+0.33i₃	上升	0.40+0.60i₁+0.60i₂	下降	0.40+0.50i₁	下降	0.44	上升
	维修措施C₄	0.25+0.50i₁+0.60i₂+0.67i₃	下降	0.33+0.45i₁+0.47i₂	下降	0.42+0.49i₁	下降	0.46	上升
	能耗状态C₅	0.25+0.38i₁+1.00i₂+0.00i₃	上升	0.40+0.27i₁+1.00i₂	下降	0.59+0.21i₁	上升	0.74	过渡
	通风效率C₆	0.33+0.33i₁+0.67i₂+0.67i₃	下降	0.50+0.33i₁+0.50i₂	下降	0.60+0.40i₁	上升	0.60	上升
	$μ$	0.31+0.41i₁+0.74i₂+0.39i₃	下降	0.43+0.36i₁+0.66i₂	下降	0.55+0.35i₁	上升	0.61	上升
人的因素 D	心理状况D₁	0.25+0.43i₁+1.00i₂+0.00i₃	上升	0.37+0.30i₁+1.00i₂	下降	0.55+0.23i₁	上升	0.70	上升
	身体状况D₂	0.00+0.25i₁+0.43i₂+0.67i₃	下降	0.00+0.37i₁+0.39i₂	下降	0.00+0.48i₁	下降	0.00	过渡
	工作能力D₃	0.67+0.20i₁+0.80i₂+0.33i₃	上升	0.77+0.20i₁+0.71i₂	下降	0.79+0.22i₁	上升	0.78	上升
	教育水平D₄	0.38+0.67i₂+0.67i₂+0.50i₃	下降	0.33+0.50i₁+0.57i₂	下降	0.40+0.47i₁	下降	0.46	上升
	$μ$	0.34+0.36i₁+0.76i₂+0.40i₃	下降	0.49+0.32i₁+0.66i₂	下降	0.61+0.33i₁	上升	0.65	上升
$μ C N$		0.18+0.42i₁+0.7i₂+0.53i₃	下降	0.30+0.38i₁+0.57i₂	下降	0.44+0.40i₁	上升	0.53	上升

Table 3

Fig.2

Fig.3

Fig.4

Fig.5

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Dynamic Status Evaluation of Main Fans of Mine at High Altitude Region

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二级指标	权重	三级指标	权重
环境因素A	0.4989	环境温度A₁	0.1207
		环境湿度A₂	0.2282
		大气压力A₃	0.6511
管理因素B	0.0148	管理制度B₁	0.1447
		应急方案B₂	0.2911
		人员分配B₃	0.5642
风机因素C	0.4677	外部结构C₁	0.4401
		保护设施C₂	0.0452
		监控系统C₃	0.0579
		维修措施C₄	0.1073
		能耗状态C₅	0.1632
		通风效率C₆	0.1863
人的因素D	0.0186	心理状况D₁	0.4152
		身体状况D₂	0.2164
		工作能力D₃	0.2825
		教育水平D₄	0.0859

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