聚乙酸乙烯酯乳液复合阻化剂阻燃煤的试验研究

doi:10.16265/j.cnki.issn1003-3033.2018.09.008

中国安全科学学报 ›› 2018, Vol. 28 ›› Issue (9): 45-50.doi: 10.16265/j.cnki.issn1003-3033.2018.09.008

聚乙酸乙烯酯乳液复合阻化剂阻燃煤的试验研究

杜杰, 邬剑明教授, 唐一博副教授, 王俊峰副教授

太原理工大学矿业工程学院,山西太原 030024

收稿日期:2018-05-26 修回日期:2018-07-08 出版日期:2018-09-28 发布日期:2020-09-28
作者简介:杜杰(1992—),男,湖北仙桃人,硕士研究生,研究方向为矿井火灾防治。E-mial:326961244@qq.com。
基金资助:
国家自然科学基金资助(51604185)。

Experimental study on retardation of coal flame with polyvinyl acetate emulsioncomposite inhibitor

DU Jie, WU Jianming, TANG Yibo, WANG Junfeng

College of Mining and Technology, Taiyuan University of Technology, Taiyuan Shanxi 030024, China

Received:2018-05-26 Revised:2018-07-08 Online:2018-09-28 Published:2020-09-28

摘要/Abstract

摘要： 为探究高分子材料复合阻化剂的阻化性能,制备聚乙酸乙烯酯乳液,分别与氯化镁(MgCl₂)、抗坏血酸、镁铝层状双氢氧化物(Mg/Al-LDHs)复配,制成3种乳液复合阻化剂,并以清水和MgCl₂水溶液作为对比阻化剂,分别处理煤样;采用程序升温氧化试验装置对煤样完成程序升温氧化试验,对比分析乳液复合阻化剂与对比阻化剂的阻化效果。结果表明:MgCl₂乳液复合阻化剂的阻化效果优于MgCl₂水溶液阻化剂;乳液复合阻化剂处理后的煤样,阻化率和活化能都有所提高;Mg/Al-LDHs乳液阻化效果最优。

关键词: 煤自燃, 复合阻化剂, 阻化率, 活化能, 耗氧速率, 放热强度

Abstract: The paper was aimed at exploring the performance of polymer composite inhibitors. A polyvinyl acetate emulsion was prepared and parts of the emulsion were compounded with magnesium chloride, ascorbic acid and magnesium aluminum layered double hydroxides(Mg/Al-LDHs) respectively to obtain three emulsion composite inhibitors. Five portions of a coal sample taken from the Zhaotong Coal Mine in Yunnan province were treated with the three inhibitors and two contrast inhibitors, clear water and magnesium chloride aqueous solution. Temperature programmed oxidation experiments were carried out on the five portions, and the inhibition effects of emulsion compound inhibitors and the contrast inhibitors were compared and analyzed. The results show that the inhibition effect of magnesium chloride emulsion composite inhibitor is better than that of magnesium chloride solution, that the inhibition rates and the values of activation energy of the three portions of the coal sample treated with the emulsion composite inhibitors are all improved, and that the inhibition effect of the hydrotalcite emulsion is optimal.

Key words: coal spontaneous combustion, composite inhibitor, inhibition rate, activation energy, oxygen consumption rate, heat liberation intensity

中图分类号:

X936

杜杰, 邬剑明, 唐一博, 王俊峰. 聚乙酸乙烯酯乳液复合阻化剂阻燃煤的试验研究[J]. 中国安全科学学报, 2018, 28(9): 45-50.

DU Jie, WU Jianming, TANG Yibo, WANG Junfeng. Experimental study on retardation of coal flame with polyvinyl acetate emulsioncomposite inhibitor[J]. China Safety Science Journal, 2018, 28(9): 45-50.

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聚乙酸乙烯酯乳液复合阻化剂阻燃煤的试验研究

Experimental study on retardation of coal flame with polyvinyl acetate emulsioncomposite inhibitor

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