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[1]杨涛,顾勇攀,戴林超,等.铁磁流体对煤粒瓦斯解吸性能影响实验研究*[J].中国安全生产科学技术,2020,16(11):117-122.[doi:10.11731/j.issn.1673-193x.2020.11.018]
　YANG Tao,GU Yongpan,DAI Linchao,et al.Experimental study on influence of ferrofluid on gas desorption performance of coal particles[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(11):117-122.[doi:10.11731/j.issn.1673-193x.2020.11.018]
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铁磁流体对煤粒瓦斯解吸性能影响实验研究*
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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11期
页码:
117-122
栏目:
职业安全卫生管理与技术
出版日期:
2020-11-30

文章信息/Info

Title:
Experimental study on influence of ferrofluid on gas desorption performance of coal particles
文章编号:
1673-193X(2020)-11-0117-06
作者:
杨涛; 顾勇攀; 戴林超; 陈学习; 王海东; 王亚晴
（1.华北科技学院 安全工程学院，河北 廊坊 065201；
2.太原理工大学 安全工程学院，山西 太原 030024；
3.中煤科工集团重庆研究院有限公司，重庆 400037）
Author(s):
YANG Tao;  GU Yongpan;  DAI Linchao;  CHEN Xuexi;  WANG Haidong;  WANG Yaqing
(1.School of Safety Engineering,North China Institute of Science and Technology,Langfang Hebei 065201,China;
2.College of Safety Engineering,Taiyuan University of Technology,Taiyuan Shanxi 030024,China;
3.CCTEG Chongqing Research Institute,Chongqing 400037,China)
关键词:
瓦斯解吸; 铁磁流体; 初始扩散系数; 极限解吸量; 解吸初速度
Keywords:
gas desorption;  ferrofluid;  initial diffusion coefficient;  limit desorption amount;  initial speed of desorption
分类号:
X936；TD713
DOI:
10.11731/j.issn.1673-193x.2020.11.018
文献标志码:
A
摘要:
为探究铁磁流体对煤体瓦斯解吸性能的影响，采用水浴恒温吸附解吸系统，开展0.44，0.65，1.14 MPa 3组不同平衡压力下加铁磁流体前后的瓦斯解吸对比实验，根据Langmuir方程经验公式计算瓦斯极限解吸量和初始扩散系数，分析铁磁流体对煤体瓦斯解吸影响的机理。结果表明：在3组不同平衡压力下加入铁磁流体后瓦斯极限解吸量由2.5，10，20 mL/g降低为2.22，3.33，10 mL/g，降低11.2%，66.7%，50%；初始扩散系数由0.997 1，1.629 9，3.888 3 μm2·s降低为0.685 5，0.997 1，2.933 5 μm2·s，降低31.25%，38.82%，24.56%。在铁磁流体的作用下，煤体瓦斯解吸性能得到大幅降低。
Abstract:
In order to explore the influence of ferrofluid on the gas desorption performance of coal mass,a water bath constant temperature adsorptiondesorption system was used to carry out the comparative experiments of gas desorption before and after adding the ferrofluid under three groups of different equilibrium pressures (0.44,0.65，1.14 MPa).The limit desorption amount and initial diffusion coefficient of gas were calculated by using the empirical formula of Langmuir equation,and the mechanism of the influence of ferrofluid on the gas desorption of coal mass was analyzed.The results showed that after adding the ferrofluid,the limit desorption amount of gas decreased from 2.5,10,20 mL/g to 2.22,3.33,10 mL/g under three groups of different equilibrium pressures,respectively,with the reduction of 11.2%,66.7% and 50%.The initial diffusion coefficient decreased from 0.997 1,1.629 9,3.888 3 μm2·s to 0.685 5,0.997 1,2.933 5 μm2·s,respectively,with the reduction of 31.25%,38.82% and 24.56%.Under the effect of ferrofluid,the gas desorption performance of coal mass reduced greatly.

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备注/Memo

备注/Memo:
收稿日期： 2020-07-07；网络首发日期： 2020-11-25
* 基金项目： 国家自然科学基金项目（51974127）；原位改性采矿教育部重点实验室开放基金项目（KLIPM-2019-02）；中央高校基本科研业务费基金项目（3142018028）；华北科技学院科技基金项目（3142020042）
作者简介： 杨涛，博士，副教授，主要研究方向为煤矿瓦斯动力灾害防治。
更新日期/Last Update: 2020-12-06