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首页> 外文期刊>Journal of Environmental Science and Health >New technology and practice of dust pollution control with foam jet in underground mines
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New technology and practice of dust pollution control with foam jet in underground mines

机译：矿井泡沫射流治理粉尘污染的新技术与实践。

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摘要

Foam is used as an efficient means of dust suppression in underground coal mines. The poor performance of conventional adding device of foaming agent restricts its wide application. The objective of this study is to propose and investigate a new parallel jet adding device (PJAD). Experimental results show that PJAD requires a greater water flow to produce negative pressure than the single stage jet adding device (SJAD) and is harder to generate cavitation. PJAD consumes a less pressure loss than SJAD and realizes any adding proportion below 1%, which is especially suitable for precision addition of foaming agent. A foaming system used for dust suppression is put forward with PJAD adding foaming agent. Field application indicates that foam achieves a far better dust suppression effect than the roadheader water spraying, and the foam cost is significantly reduced due to the low adding proportion of foaming agent. The marked dust suppression effect makes us believe that the proposed PJAD will greatly promote the large-scale application of foam technology used for dust suppression in underground coal mines.
机译：泡沫被用作地下煤矿中的有效除尘手段。传统发泡剂添加装置的性能较差，限制了其广泛的应用。这项研究的目的是提出和研究一种新型的平行射流添加装置（PJAD）。实验结果表明，与单级射流添加装置（SJAD）相比，PJAD需要更大的水流才能产生负压，并且更难产生气蚀。 PJAD的压力损失比SJAD少，并且实现的添加比例低于1％，特别适合精确添加发泡剂。提出了一种添加PJAD发泡剂的抑尘发泡系统。现场应用表明，泡沫比起道路掘进机喷水具有更好的抑尘效果，并且由于发泡剂的添加量低，泡沫成本大大降低。显着的抑尘效果使我们相信，拟议的PJAD将大大促进用于地下煤矿抑尘的泡沫技术的大规模应用。

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  • 作者

    Lu Xin-Xiao; Zhu Hong-Qing; Wang De-Ming;

  • 作者单位

    China Univ Min & Technol Beijing, State Key Lab Coal Resources & Safe Min, Beijing, Peoples R China|Henan Polytech Univ, State Key Lab Cultivat Base Gas Geol & Gas Contro, Jiaozuo, Peoples R China|Univ Sci & Technol China, State Key Lab Fire Sci, Hefei, Anhui, Peoples R China;

    China Univ Min & Technol Beijing, State Key Lab Coal Resources & Safe Min, Beijing, Peoples R China;

    China Univ Min & Technol, Key Lab Gas & Fire Control Coal Mines, Minist Educ, Xuzhou, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Jet; cavitation; pressure loss; foam; dust suppression;

    机译：射流;气蚀;压力损失;泡沫;抑尘;

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