[1]张鹏莉,葛少成,庞星宇,等.磁化复配表面活性剂对难浸润煤尘润湿改性的量化研究*[J].中国安全生产科学技术,2023,19(8):80-86.[doi:10.11731/j.issn.1673-193x.2023.08.012]
ZHANG Pengli,GE Shaocheng,PANG Xingyu,et al.Quantitative study on wetting modification of hard-to-wet coal dust by magnetized compound surfactants[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(8):80-86.[doi:10.11731/j.issn.1673-193x.2023.08.012]
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磁化复配表面活性剂对难浸润煤尘润湿改性的量化研究*
ZHANG Pengli,GE Shaocheng,PANG Xingyu,et al.Quantitative study on wetting modification of hard-to-wet coal dust by magnetized compound surfactants[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(8):80-86.[doi:10.11731/j.issn.1673-193x.2023.08.012]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 19
- 期数:
- 2023年8期
- 页码:
- 80-86
- 栏目:
- 职业安全卫生管理与技术
- 出版日期:
- 2023-08-31
文章信息/Info
- Title:
- Quantitative study on wetting modification of hard-to-wet coal dust by magnetized compound surfactants
- 文章编号:
- 1673-193X(2023)-08-0080-07
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为提高矿井湿式降尘效率，以典型难浸润的阳泉无烟煤和灵石焦煤为研究对象，通过逐步回归方法对表面张力及接触角进行定量化研究，优选复配单体溶液；通过将复配实验与磁化实验相结合，得到2种煤的优选降尘配方，并通过降尘模拟实验验证磁化复配表面活性剂的降尘效果。研究结果表明：2种煤尘的润湿结果均为磁化复配表面活性剂>未磁化复配溶液>单体活性剂溶液>水溶液；逐步回归模型结果表明，溶液质量分数、亲水基中总氧相对原子质量/亲水基总分子量均与表面张力呈负相关，亲水基总分子量/总分子量与表面张力呈正相关；溶液质量分数和总分子量与接触角呈负相关，疏水基碳链长度、总碳相对原子质量/总分子量、亲水基分子量/总分子量与接触角呈正相关；磁化复配表面活性剂的降尘效率最优。研究结果可为矿井降尘提供技术支撑。
- Abstract:
- In order to improve the efficiency of wet dust reduction in mines,the typical hard-to-wet Yangquan anthracite and Lingshi coking coal were taken as research objects,and the surface tension and contact angle were quantitatively studied by stepwise regression method to optimize the compound monomer solution.By combining the compound experiment with the magnetization experiment,the optimal dust reduction formula of the two kinds of coal was obtained,and the dust reduction effect of the magnetized compound surfactant was verified by the dust reduction simulation experiment.The results show that the wetting results of both coal dusts are magnetized compound surfactant > unmagnetized compound solution > monomer surfactant solution > aqueous solution.The results of stepwise regression model show that the mass fraction of solution,the relative atomic mass of total oxygen in the hydrophilic group/the total molecular weight of hydrophilic group are both negatively correlated with the surface tension,and the total molecular weight of hydrophilic group/total molecular weight is positively correlated with the surface tension.The mass fraction and total molecular weight of the solution are negatively correlated with the contact angle,and the hydrophobic carbon chain length,total carbon relative atomic mass/total molecular weight,and hydrophilic molecular weight/total molecular weight are positively correlated with the contact angle.The dust reduction efficiency of magnetized compound surfactant is the best.The research results can provide technical support for mine dust reduction.
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备注/Memo
- 备注/Memo:
-
收稿日期： 2022-11-24
* 基金项目： 国家自然科学基金项目（52174195，52274220）；山西省基础研究计划项目（20220321221061）
作者简介： 张鹏莉，硕士研究生，主要研究方向为粉尘防治理论与技术。
通信作者： 葛少成，博士，教授，主要研究方向为粉尘防治理论与技术。
