转载点密闭自发电气水喷雾系统

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英文篇名：Study on Transfer Point Closed Self-generating Electric Water Spray System 作者：解兴智 ; 许红杰 ; 孙龙浩 ; 苏建 ; 张江石 英文作者：XIE Xingzhi;XU Hongjie;SUN Longhao;SU Jian;ZHANG Jiangshi;Mining Research Branch of China Coal Research Institute;School of Resources & Safety Engineering,China University of Mining and Technology (Beijing); 关键词：选煤厂 ; 转载点 ; 密闭收尘 ; 气水喷雾 ; 自发电装置 英文关键词：coal preparation plant;;transfer point;;closed dust collection;;gas-water spray;;self-generating device 中文刊名：MKAQ 英文刊名：Safety in Coal Mines 机构：煤炭科学研究总院开采研究分院;中国矿业大学(北京)资源与安全工程学院; 出版日期：2019-07-20 出版单位：煤矿安全 年：2019 期：v.50;No.541 语种：中文; 页：MKAQ201907037 页数：4 CN：07 ISSN：21-1232/TD 分类号：163-166

摘要

为了解决某选煤厂转载点处由于带式输送机高差大而产生的煤尘积聚、飞扬造成车间环境污染的问题,通过分析转载点产尘特性和产尘原因,研究了一套转载点粉尘治理方案。首先根据带式输送机尺寸以及风机安装位置、角度设计了密闭罩,很好的控制了粉尘逸散的问题;然后对气水喷雾装置进行参数计算、元件选型和现场安装;最后将新型自发电控制装置与喷雾装置进行连接,以控制系统的停车和作业。通过上述改进措施,转载点的呼吸性粉尘和全尘浓度均降明显降低,其中呼吸性粉尘降尘效率可达87.6%。
        To solve the problem of environmental pollution caused by coal dust accumulation and flying at the transfer point of the belt conveyor in a coal preparation plant, a dust control scheme for the transfer point was studied by analyzing the characteristics and causes of dust production at the transfer point. Firstly, the airtight cover is designed according to the size of belt conveyor and the installation position of blower. The problem of dust escape is well controlled. Then the parameters calculation, component selection and field installation of air-water spraying device are carried out. Finally, the new self-generating control device is connected with spraying device to control the shutdown and operation of the system. The respirable dust and the whole dust concentration at the reloading point were obviously reduced, and the dust reduction efficiency of respirable dust was 87.6%.

引文

[1]刘忠育,刘丽虹,杨磊,等.基于Zigbee技术的带式输送机转载点喷雾除尘装置设计[J].煤矿机械,2012,33(1):165-167.
    [2]秦翥.带式输送机转载点粉尘浓度分布数值模拟[J].工矿自动化,2018,44(7):70-74.
    [3]程卫民,聂文,周刚,等.煤矿高压喷雾雾化粒度的降尘性能研究[J].中国矿业大学学报,2011,40(2):185-189.
    [4]程卫民,周刚,左前明,等.喷嘴喷雾压力与雾化粒度关系的实验研究[J].煤炭学报,2010,35(8):1308.
    [5]周刚,程卫民,聂文,等.煤矿综放面雾化降尘理论及应用[M].北京:煤炭工业出版社,2014:4-8.
    [6]聂文,程卫民,周刚,等.掘进面喷雾雾化粒度受风流扰动影响实验研究[J].中国矿业大学学报,2012,41(3):378-383.
    [7]周文东,王德明,王庆国,等.选煤厂转载点产尘特性及高效治理技术[J].煤矿安全,2015,46(8):114.
    [8]罗薇.基于CFD数值模拟技术的半密闭罩内除尘控制研究[D].西安:西安工程大学,2017.
    [9]Xi Zhilin,Jiang Manman,Sun Changping,et al.Controlling the coal dust attransshipment point:A study of the foam-sol foaming device[J].International Journal of Mining Science and Technology,2014,24(5):625.
    [10]张江石,解兴智,许红杰.粉尘防治的理论与方法[M].北京:煤炭工业出版社,2018:66-70.
    [11]陆新晓,王德明,任万兴,等.泡沫降尘技术在转载点的应用[J].煤矿安全,2011,42(11):65-67.
    [12]王延军,张天林.气-水喷雾加湿降尘技术在涂装车间的应用[J].涂料工业,2013,43(3):70-72.
    [13]曹建明,朱辉,郭广祥,等.空气助力改善液滴雾化质量的研究[J].实验流体力学,2013,27(1):56-60.
    [14]蒋仲安,王明,陈举师,等.气水喷嘴雾化特征与降尘效果分析[J].哈尔滨工业大学学报,2017,49(2):151-157.
    [15]王鹏飞,刘荣华,王海桥,等.煤矿井下气水喷雾雾化特性实验研究[J].煤炭学报,2017,42(5):1213.