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Study of resource utilization and fire prevention characteristics of a novel gel formulated from coal mine sludge (MS)

机译：煤矿污泥（MS）制定的新型凝胶的资源利用和防火特性研究

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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.
机译：为了利用煤矿污泥（MS）并降低材料成本，本文通过将MS与羧甲基纤维素（CMC），聚铝氯化铝和柠檬酸混合，报道了一种新型MS / CMC-AL3 +防火和灭火材料的制备方法酸。实验结果表明，使用MS：CMC：Alcit（柠檬酸铝）：H 2 O = 15：1：4：35，MS / CMC-AL3 +凝胶显示出最佳的抗压强度和抑制作用。拉曼光谱和FTIR光谱的组合显示MS和CMC中的HPAM-AL3 + / Fe3 +凝胶在离子之间形成强螯合力。 SEM分析表明，MS / CMC-AL3 +凝胶的表面结构非常致密，MS，CMC，AL3 +和Fe3 +均匀地分布在复合胶体中，表明HPAM-AL3 + / Fe3 +凝胶和CMC完全交联。通过TG-IR分析MS / CMC-AL3 +凝胶的氧化特性，发现MS / CMC-AL3 +凝胶可以有效地抑制煤温和散热的增加，这有利于煤的自发燃烧过程。同时，MS / CMC-AL3 +凝胶还可以抑制来自燃烧的CO和CO2的产生，这起到了显着的抑制作用。 MS / CMC-AL3 +凝胶通过废物回收降低污染和成本;因此，它是一种干净的防火和灭火材料。

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  • 来源
    《Fuel》 |2020年第may1期|117261.1-117261.10|共10页
  • 作者

    Ren Xiaofeng; Hu Xiangming; Cheng Weimin; Bian Susu; Zhao Yanyun; Wu Mingyue; Xue Di; Li Yongsheng; Lu Wei; Wang Peng;

  • 作者单位

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China|Binzhou Univ Coll Resources & Environm Engn Binzhou 256603 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China|Binzhou Univ Coll Resources & Environm Engn Binzhou 256603 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Chem & Environm Engn Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Min & Safety Engn Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol State Key Lab Min Disaster Prevent & Control Cofo Qingdao 266590 Shandong Peoples R China|Shandong Univ Sci & Technol Minist Sci & Technol Qingdao 266590 Shandong Peoples R China;

    Shandong Univ Sci & Technol Coll Chem & Environm Engn Qingdao 266590 Shandong Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Raman spectroscopy; Chelation force between ions; Cross-linking; Inhibition; Clean material;

    机译：拉曼光谱;离子之间的螯合力;交联;抑制;清洁材料;

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