| 掘进巷道中长压短抽式通风合理压抽比实验研究 |
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| 引用本文： | 王辉,蒋仲安,黄丽婷,廖贤鑫,王继冉.掘进巷道中长压短抽式通风合理压抽比实验研究[J].辽宁工程技术大学学报(自然科学版),2011,30(2):168-171. |
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| 作者姓名： | 王辉 蒋仲安 黄丽婷 廖贤鑫 王继冉 |
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| 作者单位： | 北京科技大学,土木与环境工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(50804020) |
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| 摘 要： | 为了有效解决掘进巷道中的高粉尘体积分数问题,针对目前应用最广的长压短抽通风方式,采用相似实验的方法搭建实验模型装置,研究了长压短抽式通风中的关键参数——压抽比。研究结果表明:在低瓦斯体积分数巷道中,压抽比过小或过大都不利于粉尘的抽排,而在压抽比为1.1~1.3时,巷道前端会形成涡旋风流,减弱了粉尘扩散和沉降作用,并将粉尘有效控制在抽吸作用范围内,最大程度地被吸风风流带走。该结论在现场应用后,取得了良好效果,对长压短抽通风系统的布置具有一定的参考价值。
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| 关 键 词： | 掘进巷道 相似准则 压抽比 粉尘分布 通风系统 |
Experimental research on pressing air-absorption air volumeratio in FPNA ventilation for excavation roadways |
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| WANG Hui,JIANG Zhongan,HUANG Liting,LIAO Xianxin,WANG Jiran.Experimental research on pressing air-absorption air volumeratio in FPNA ventilation for excavation roadways[J].Journal of Liaoning Technical University (Natural Science Edition),2011,30(2):168-171. |
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| Authors: | WANG Hui JIANG Zhongan HUANG Liting LIAO Xianxin WANG Jiran |
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| Institution: | WANG Hui,JIANG Zhongan,HUANG Liting,LIAO Xianxin,WANG Jiran(Civil and Environmental Engineering School,USTB,Beijing 100083,China) |
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| Abstract: | In order to solve the problem of high dust concentration in excavation roadways,this thesis focuses on the widely used far-pressing-near-absorption(FPNA) ventilation system,studies the ratio of pressing air volume to absorption air volume in the way of simulation experiment.The ratio is recommended as between 1.1 and 1.3,with which the ventilation system can weaken dust diffusion and sedimentation,and limit the dust within the range of absorption.And the field application with the conclusion proves to be su... |
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| Keywords: | excavation roadway similitude criterion ratio of pressing air volume to absorption air volume dust distribution |
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