|本期目录/Table of Contents|

[1]罗振敏,张蔓,郝强强,等.煤油共生矿区含油煤尘云最低着火温度试验研究[J].中国安全生产科学技术,2020,16(3):55-60.[doi:10.11731/j.issn.1673-193x.2020.03.009]
　LUO Zhenmin,ZHANG Man,HAO Qiangqiang,et al.Experimental study on minimum ignition temperature of oilbearing coal dust cloud in coaloil coexisting mining area[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(3):55-60.[doi:10.11731/j.issn.1673-193x.2020.03.009]
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煤油共生矿区含油煤尘云最低着火温度试验研究
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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3期
页码:
55-60
栏目:
职业安全卫生管理与技术
出版日期:
2020-03-30

文章信息/Info

Title:
Experimental study on minimum ignition temperature of oilbearing coal dust cloud in coaloil coexisting mining area
文章编号:
1673-193X(2020)-03-0055-06
作者:
罗振敏; 张蔓; 郝强强; 刘利涛
（1.西安科技大学 安全科学与工程学院，陕西 西安 710054；
2.西部矿井开采及灾害防治教育部重点实验室，陕西 西安710054）
Author(s):
LUO Zhenmin;  ZHANG Man;  HAO Qiangqiang;  LIU Litao
(1.School of Safety Science and Engineering,Xi’an University of Science and Technology,Xi’an Shaanxi 710054,China;
2.Key Laboratory of Western Mine Explosion and Hazard Prevention,Ministry of Education,Xi’an University of Science and Technology,Xi’an
关键词:
煤油共生; 含油煤尘; 最低着火温度; 煤尘云
Keywords:
coaloil coexisting;  oilbearing coal dust;  minimum ignition temperature;  coal dust cloud
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2020.03.009
文献标志码:
A
摘要:
为研究煤油共生矿区含油煤尘最低着火温度的变化规律，选取3种含油浓度不同的煤样，采用粉尘云最低着火温度测定系统，研究含油煤尘云最低着火温度随含油浓度、喷尘压力及煤尘质量的变化规律。研究结果表明：含油煤尘的最低着火温度较不含油煤尘显著降低，且随着煤尘含油浓度的增加，煤尘中挥发分含量增多，煤尘云最低着火温度降低，爆炸危险性增强；低含油浓度煤尘，煤尘受原油挥发分影响较大，在含油浓度为5.7%，4.3%且质量浓度为1364~4550 g/m3时煤尘云最低着火温度随喷尘压力的增大呈先增大后减小的变化趋势，在5.7%，4.3%含油浓度且喷尘压力为0.05 MPa时煤尘MIT随煤尘质量浓度增加先降低后缓慢升高。高含油浓度煤尘，受煤尘团聚现象影响较大，煤尘云最低着火温度随喷尘压力的增加而升高，随煤尘质量的增加呈先减小后增大再缓慢减小的变化规律。
Abstract:
In order to study the variation laws of the minimum ignition temperature of oilbearing coal dust in the coaloil coexisting mining area,three types of coal samples with different oilbearing concentrations were selected,and the variation laws of the minimum ignition temperature of oilbearing coal dust cloud with the oilbearing concentration,dust spraying pressure and coal dust mass were studied.The results showed that the minimum ignition temperature of oilbearing coal dust was significantly lower than that of nonoil coal dust,and with the increase of oilbearing concentration of coal dust,the volatile matter content in the coal dust increased,the minimum ignition temperature of coal dust cloud decreased,and the explosion risk increased.Low oil-bearing coal dust is greatly affected by the volatile matter of coal dust in coal dust. When the oil concentration is 5.7% and 4.3%with the mass concentration is 1364 g/m3 to 4550 g/m3 , the minimum ignition temperature of coal dust cloud decreases with the increase of dust pressure, and decreases first with the increase of coal dust quality. High oil-bearing coal dust is greatly affected by the phenomenon of coal dust agglomeration. When the oil concentration is 5.7%, 4.3% and the dust pressure is 0.05 MPa, the minimum ignition temperature of coal dust cloud increases with the increase of dust pressure. The coal dust with high oilbearing concentration was greatly affected by the phenomenon of coal dust agglomeration.The minimum ignition temperature of coal dust cloud increased with the increase of dust spraying pressure,while it decreased first and then increased and decreased slowly again with the increase of coal dust mass.

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备注/Memo

备注/Memo:
收稿日期： 2019-11-16
* 基金项目： 国家重点研发计划项目（2017YFC0804702）；国家自然科学基金项目（51674193）；陕西省自然科学基金项目（2017JM5068，2018JM5152）；陕西省教育厅专项科学研究计划项目（17JK0487）
作者简介： 罗振敏，博士，教授，主要研究方向为气体与粉尘爆炸与防控。
更新日期/Last Update: 2020-04-01