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[1]郭敬中,金龙哲,赵启峰,等.基于在线监测系统的金属矿山采场爆破粉尘浓度分布规律研究[J].中国安全生产科学技术,2020,16(4):114-119.[doi:10.11731/j.issn.1673-193x.2020.04.018]
　GUO Jingzhong,JIN Longzhe,ZHAO Qifeng,et al.Study on laws of concentration distribution of blasting dust in stope of metal mine based on online monitoring system[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(4):114-119.[doi:10.11731/j.issn.1673-193x.2020.04.018]
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基于在线监测系统的金属矿山采场爆破粉尘浓度分布规律研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年4期
页码:
114-119
栏目:
职业安全卫生管理与技术
出版日期:
2020-04-30

文章信息/Info

Title:
Study on laws of concentration distribution of blasting dust in stope of metal mine based on online monitoring system
文章编号:
1673-193X(2020)-04-0114-06
作者:
郭敬中; 金龙哲; 赵启峰; 石建军; 郝睿吉
（1.华北科技学院 安全工程学院，河北 廊坊 065201；
2.北京科技大学 土木与资源工程学院，北京 100083）
Author(s):
GUO Jingzhong; JIN Longzhe; ZHAO Qifeng; SHI Jianjun; HAO Ruiji
(1.Safety Engineering College,North China institute of science and Technology,Langfang Hebei 065201,China；
2.School of Civil and Resource Engineering,University of Science and Technology Beijing，Beijing 100083,China)
关键词:
在线监测系统; 巷道型采场; 爆破粉尘; 浓度分布
Keywords:
online monitoring system;  roadway stope;  blasting dust;  concentration distribution
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2020.04.018
文献标志码:
A
摘要:
为了探究爆破粉尘浓度及有毒有害气体分布规律，以粉尘浓度传感器、CO检测仪为主要设备设计并搭建尘烟在线监测系统。设计并制作移动式观测台车，用于解决梅山铁矿无底柱分段崩落采矿法地下难以人工采集数据的难题。现场试验表明：在起爆后的1.5 h内，采场内粉尘浓度先增高后降低，如此循环若干次，但每次的峰值依次减小；采场内CO浓度短时间内上升到最大值，为2 227.3×10-6，之后CO浓度逐步降低，但均都在24×10-6以上。可采用多组份水炮泥源头降尘措施，配以通风排尘，使尘烟浓度降到规程许可浓度范围内。
Abstract:
In order to explore the distribution laws of the concentration of blasting dust and the toxic and hazardous gases,an online monitoring system was designed and established by taking the dust concentration sensor and CO detector as the main devices.A mobile observation trolley was designed and manufactured,which was used to solve the problem of difficult manual data collection in underground Meishan iron mine with the nonpillar sublevel caving method.The field tests showed that within 1.5 h after the initiation,the dust concentration in the stope increased first and then decreased,which repeated for several times,but the next peak value was smaller than the previous one.The concentration of CO in the stope increased to the maximum value of 2 227.3×10-6 quickly,and decreased gradually after that,but which were all above 24×10-6.The source dust suppression measure of multicomponent waterstem could be used with the auxiliary of ventilation dust exhaust to reduce the concentration of dust and smoke within the permitted concentration range required by the standard.

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备注/Memo

备注/Memo:
收稿日期： 2019-11-19
* 基金项目： 国家重点研发计划项目（2017YFC0805204）；国家自然科学基金项目（51874015）；中央高校基本科研业务费项目（HKJYZD201604，3142015028）
作者简介： 郭敬中，博士研究生，讲师，主要研究方向为矿山安全生产基础理论、粉尘监测与防治技术等。
通信作者： 金龙哲，博士，教授，主要研究方向为矿山安全工程、安全管理、矿山紧急避险及应急救援技术。
更新日期/Last Update: 2020-05-11