标题:Study of resource utilization and fire prevention characteristics of a novel gel formulated from coal mine sludge (MS)
作者:Ren, Xiaofeng ;Hu, Xiangming ;Cheng, Weimin ;Bian, Susu ;Zhao, Yanyun ;Wu, Mingyue ;Xue, Di ;Li, Yongsheng ;Lu, Wei ;Wang, Peng
作者机构:[Ren, Xiaofeng ;Hu, Xiangming ;Cheng, Weimin ;Bian, Susu ;Wu, Mingyue ;Xue, Di ;Li, Yongsheng ;Lu, Wei ] College of Mining and Safety Engineering, Sha 更多
通讯作者:Hu, Xiangming
通讯作者地址:[Hu, X] College of Mining and Safety Engineering, Shandong University of Science and TechnologyChina;
来源:Fuel
出版年:2020
卷:267
DOI:10.1016/j.fuel.2020.117261
关键词:Chelation force between ions; Clean material; Cross-linking; Inhibition; Raman spectroscopy
摘要:In order to utilize coal mine sludge (MS) and reduce material cost, this paper reports the preparation method of a novel MS/CMC-Al3+ fire prevention and extinguishing material by mixing MS with sodium carboxymethyl cellulose (CMC), polyaluminium chloride, and citric acid. The experimental results indicate that with MS: CMC: AlCit (aluminum citrate): H2O = 15:1:4:35, MS/CMC-Al3+ gel displayed the best compressive strength and inhibitory effect. The combination of Raman spectroscopy and FTIR spectroscopy showed that HPAM-Al3+/Fe3+ gel in MS and CMC form a strong chelation force between ions. SEM analysis showed that the surface structure of MS/CMC-Al3+ gel was extremely dense and MS, CMC, Al3+, and Fe3+ were evenly distributed in the composite colloid, suggesting that HPAM-Al3+/Fe3+ gel and CMC were completely crosslinked. By analyzing the oxidation characteristics of MS/CMC-Al3+ gel via TG-IR, it was found that MS/CMC-Al3+ gel can effectively inhibit the increase in coal temperature and heat accumulation, which is beneficial for spontaneous combustion process of coal. Simultaneously, MS/CMC-Al3+ gel can also inhibit the generation of CO and CO2 from combustion, which plays a significant inhibitory role. MS/CMC-Al3+ gel reduces pollution and cost by the recycling of wastes; hence, it is a clean fire protection and extinguishing material. © 2020 Elsevier Ltd
收录类别:EI;SCOPUS
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85078916346&doi=10.1016%2fj.fuel.2020.117261&partnerID=40&md5=96fd2e544673088a4c74c2981f69c407
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