OPTIMAL SELECTION OF NOZZLES FOR AIR-ASSISTED DUST SUPPRESSION SPRAYERS

YUAN Xin-hu; WANG Peng-fei; LIU Li-ming; HE Yun-chu; GONG Jing-zhong

doi:10.13205/j.hjgc.202205025

Volume 40 Issue 5

Jul. 2022

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2022 > 40(5): 171-177

YUAN Xin-hu, WANG Peng-fei, LIU Li-ming, HE Yun-chu, GONG Jing-zhong. OPTIMAL SELECTION OF NOZZLES FOR AIR-ASSISTED DUST SUPPRESSION SPRAYERS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 171-177. doi: 10.13205/j.hjgc.202205025

Citation:

YUAN Xin-hu, WANG Peng-fei, LIU Li-ming, HE Yun-chu, GONG Jing-zhong. OPTIMAL SELECTION OF NOZZLES FOR AIR-ASSISTED DUST SUPPRESSION SPRAYERS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(5): 171-177. doi: 10.13205/j.hjgc.202205025

Citation:

PDF( 8512 KB)

OPTIMAL SELECTION OF NOZZLES FOR AIR-ASSISTED DUST SUPPRESSION SPRAYERS

doi: 10.13205/j.hjgc.202205025

1. School of Resource, Environment & Safety Engineering, Hunan University of Science & Technology, Xiangtan 411201, China;
2. Hunan Jiujiu Environmental Protection Intelligent Co., Ltd, Changsha 410004, China

Received Date: 2021-05-10
Available Online: 2022-07-02

Abstract

Abstract

To better guide the selection of nozzles of air-assisted dust suppression sprayer, five sprayer nozzles with different internal structures were collected to carry out a comparative study on the atomization characteristics, and the selected nozzles were used in the project site to test the dust reduction effect. The results showed that:1) the Spray and Taige nozzles had larger atomization angle, meeting the needs of large area dust reduction, and were suitable for most dust suppression sprayers; 2) under the same water supply pressure, the droplet diameter of the Spray nozzle with an outlet diameter of 0.5 mm was much smaller than that of other nozzles, and its installation in the dust suppression sprayer was beneficial to fine dust capture; 3) the spray nozzle with an outlet diameter of 0.5 mm was installed in the dust suppression sprayer at the project site, to measure the total dust reduction efficiency and respirable dust reduction efficiency, which were higher than 90% and 80% respectively, and the dust reduction effect was good.
- air-assisted dust suppression sprayer,
- atomization characteristics,
- dust reduction effect,
- nozzle selection

FullText(HTML)

References(16)

References

[1]	李德文,马俊,刘何清.煤矿粉尘及职业病防治技术[M].徐州:中国矿业大学出版社,2007.
[2]	王鹏飞,刘荣华,汤梦,等.喷嘴直径对降尘效果影响的试验研究[J].中国安全科学学报,2015,25(3):114-120.
[3]	王珲,安登飞,张六零.钢铁企业烟粉尘重点排放源分析[J].环境工程,2016,34(3):62-64 ,101.
[4]	蒋葛夫,乔力伟.衬砌台车对游离SiO₂粉尘扩散阻碍特性监测研究[J].环境工程,2018,36(4):170-175 ,185.
[5]	沈利.基于气体-颗粒两相流模型的燃煤电厂粉尘运动规律预测[J].环境工程,2020,38(6):181-187 ,93.
[6]	曹建明.喷雾学[M].北京:机械工业出版社,2005:116-156.
[7]	宋淑然,夏侯炳,卢玉华,等.风送式喷雾机导流器结构优化及试验研究[J].农业工程学报,2012,28(6):7-12.
[8]	宋淑然,夏侯炳,刘洪山,等.风送式喷雾机喷筒结构优化数值模拟与试验[J].农业机械学报,2013,44(6):73-78 ,55.
[9]	刘秀娟,郑加强,周宏平.喷筒结构对风送式喷雾机射流动力的影响[J].中国农机化,2012(2):106-109.
[10]	张小涛.风送式远程喷雾机空间流场分布试验研究[J].矿山机械,2015,43(12):122-125.
[11]	张小涛.风送式远程喷雾雾滴扩散沉降分布规律研究[J].矿业安全与环保,2019,46(1):5-9 ,13.
[12]	姜华,郭芮伶,朱江涛.远程喷雾降尘两相射流流场研究[J].西安科技大学学报,2019,39(2):249-255.
[13]	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 ,206.
[14]	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):1308-1313.
[15]	马素平,寇子明.喷雾降尘机理的研究[J].煤炭学报,2005,30(3):297-300.
[16]	曹建明.喷雾学[M].北京:机械工业出版社,2005:116-156.