煤层注水降尘中表面活性剂复配应用研究

doi:10.16265/j.cnki.issn 1003-3033.2020.10.013

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (10): 90-95.doi: 10.16265/j.cnki.issn 1003-3033.2020.10.013

煤层注水降尘中表面活性剂复配应用研究

翁安琦¹, 袁树杰^**1,2 教授, 王晓楠¹, 马瑞峰³

1 安徽理工大学能源与安全学院,安徽淮南 232001;
2 煤矿安全高效开采省部共建教育部重点实验室,安徽淮南 232001;
3 湖南平安矿井安全技术有限公司,湖南湘潭 411100

收稿日期:2020-07-10 修回日期:2020-09-08 出版日期:2020-10-28 发布日期:2021-07-15
通讯作者: **袁树杰(1963—),男,安徽蒙城人,博士,教授,主要从事灾害防治理论及技术等方面的研究。E-mail: yuansj@aust.edu.cn。
作者简介:翁安琦 (1994—),男,安徽黄山人,硕士研究生,主要研究方向为灾害防治理论及技术等。 E-mail:1669455337@qq.com。
基金资助:
国家自然科学基金资助(51874009);国家重点研发项目(2018YFC0808105)。

Study on application of surfactant compound in coal seam water injection for dust reduction

WENG Anqi¹, YUAN Shujie^1,2, WANG Xiaonan¹, MA Ruifeng³

1 School of Energy and Safety, Anhui University of Science and Technology, Huainan Anhui 232001, China;
2 Key Laboratory of Safe and Effective Coal Mining, Ministry of Education, Huainan Anhui 232001, China;
3 Hunan Ping'an Mine Safety Technology Co., Ltd., Xiangtan Hunan 411100, China

Received:2020-07-10 Revised:2020-09-08 Online:2020-10-28 Published:2021-07-15

摘要/Abstract

摘要： 为了防治综采工作面生产期间煤尘污染问题,以黑龙江某煤矿的烟煤层为研究对象,进行煤层注水降尘试验;优选仲烷基磺酸钠(H95)、十二烷基二甲基苄基氯化铵(1227)、椰油酰胺丙基甜菜碱(CAB-35)、椰油酸二乙醇酰胺(CDEA)4种表面活性剂,并按其临界胶束浓度(CMC)两两复配成6种溶液,分别对单体和复配溶液进行表面张力、接触角及反渗试验。结果表明:0.05%H95和0.05%CDEA的复配溶液对煤的润湿性最好。在采煤机割煤处、液压支架移架处和皮带机转载处加入复配表面活性剂并注水后,全尘降尘率分别为83.96%、76.17％和72％,呼吸性粉尘降尘率分别为79.29％、73.95％和70.3％。

关键词: 煤层注水, 表面活性剂, 复配溶液, 临界胶束浓度(CMC), 接触角, 表面张力, 润湿性

Abstract: In order to prevent and control coal dust pollution during mining in fully mechanized working face, with bituminous coal seam in a mine in Heilongjiang as an research object, water injection experiments in coal seam for dust reduction were carried out. Firstly, four surfactants were selected, namely sodium secondary alkyl sulfonate (H95), dodecyl dimethyl benzyl ammonium chloride (1227), coconut oil amide propyl betaine (CAB-35), coconut oleate diethanolamide (CDEA). Then, they were mixed in pairs according to their CMC to obtain six solutions. Finally, surface tension, contact angle and reverse osmosis of monomer and compound solution were tested respectively. The results show that compound solution of 0.05% H95 and 0.05% CDEA has the best wettability to coal. After adding compound surfactant, removal rates of total dust were 83.96%, 76.17% and 72% respectively at coal cutting place, hydraulic support shifting place and belt conveyor transferring place after water injection, and that of respirable dust were 79.29%, 73.95% and 70.3% separately.

Key words: coal seam water injection, surfactant, combination solution, critical micelle concentration (CMC), contact angle, surface tension, wettability

中图分类号:

X936

翁安琦, 袁树杰, 王晓楠, 马瑞峰. 煤层注水降尘中表面活性剂复配应用研究[J]. 中国安全科学学报, 2020, 30(10): 90-95.

WENG Anqi, YUAN Shujie, WANG Xiaonan, MA Ruifeng. Study on application of surfactant compound in coal seam water injection for dust reduction[J]. China Safety Science Journal, 2020, 30(10): 90-95.

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煤层注水降尘中表面活性剂复配应用研究

Study on application of surfactant compound in coal seam water injection for dust reduction

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