振弦栅与高压喷雾协同作用下除尘特性研究*

doi:10.16265/j.cnki.issn 1003-3033.2021.06.014

中国安全科学学报 ›› 2021, Vol. 31 ›› Issue (6): 106-112.doi: 10.16265/j.cnki.issn 1003-3033.2021.06.014

振弦栅与高压喷雾协同作用下除尘特性研究^*

丁厚成¹ 副教授, 连志虚¹, 邓权龙¹, 蒋仲安² 教授, 杨利炜¹, 葛梦圆¹

1 安徽工业大学建筑工程学院,安徽马鞍山 243002;
2 北京科技大学土木与资源工程学院,北京 100083

收稿日期:2021-03-05 修回日期:2021-05-08 出版日期:2021-06-28 发布日期:2021-12-28
作者简介:丁厚成 (1973—),男,安徽来安人,博士,副教授,主要从事安全技术及工程等方面的研究。E-mail: hnhoucheng@163.com。
基金资助:
安徽省自然科学基金资助(1808085ME161);安徽高校自然科学研究项目(KJ2019A0052);大学生创新创业项目(202010360043,S201910360232)。

Research on dust removal characteristics under synergistic action of vibrating wire grid and high-pressure spray

DING Houcheng¹, LIAN Zhixu¹, DENG Quanlong¹, JIANG Zhongan², YANG Liwei¹, GE Mengyuan¹

1 School of Construction Engineering, Anhui University of Technology, Ma'anshan,Anhui 243002, China;
2 School of Civil and Resource Engineering, University of Science and Technology Beijing,Beijing 100083, China

Received:2021-03-05 Revised:2021-05-08 Online:2021-06-28 Published:2021-12-28

摘要/Abstract

摘要： 为防治矿井排风口的粉尘对矿区周边大气环境的污染问题,基于流体动力学、气液耦合和喷雾降尘及振弦栅除尘理论,运用计算流体动力学(CFD)三维数值模拟方法,优化振弦栅与高压喷雾协同作用下除尘特性参数,研究不同雾化压力对雾滴粒径分布及质量浓度分布的影响,分析振弦栅直径及间距对雾滴拦截效果、风速对双层振弦栅水膜作用特征。结果表明:随着雾化压力增大,雾滴粒径逐渐变小且分布集中化,雾化压力超过8 MPa后雾滴粒径分布变化不明显;不同间距的振弦栅均对流场有截流作用并伴有严重回流现象,而间距为5 mm的振弦栅对粒径较小的雾滴拦截效果更好;当进口风速为3 m/s时振弦栅表面形成水膜效果最佳,更利于粉尘捕集;模拟数据与试验结果变化趋势基本一致。

关键词: 振弦栅, 雾化压力, 协同作用, 湿式除尘, 数值模拟

Abstract: In order to prevent and control pollution of dust from outlet of mine to surrounding atmospheric environment of mining area,based on theory of fluid dynamics, gas-liquid coupling and spray dust reduction and vibrating wire grid dust removal, computational fluid dynamics (CFD) three-dimensional numerical simulation method was used, dust removal characteristic parameters under synergistic effect of vibrating wire grid and high-pressure spray were optimized, effects of different atomization pressures on particle size distribution and mass concentration distribution of droplets were studied. Effects of diameter and spacing of vibrating string grid on droplets intercepting effect and effects of wind speed on water film of double-layer vibrating string grid were analyzed. The results show that with the increase of atomization pressure, the particle size of droplets decreases gradually and distribution becomes centralized. When atomization pressure exceeds 8 MPa, particle size distribution of droplets does not change significantly. Vibrating-string grids with different spacing have effect of blocking flow field and serious backflow phenomenon, while vibrating-string grids with spacing of 5 mm have the better effect of intercepting droplets with smaller particle size.When inlet wind speed is 3 m/s, water film on the surface of vibrating grating has the best effect, which is more conducive to dust collection. Variation trend of simulated data is basically consistent with experimental results.

Key words: vibrating wire grid, atomization pressure, synergistic action, wet dust removal, numerical simulation

中图分类号:

X964

丁厚成, 连志虚, 邓权龙, 蒋仲安, 杨利炜, 葛梦圆. 振弦栅与高压喷雾协同作用下除尘特性研究^*[J]. 中国安全科学学报, 2021, 31(6): 106-112.

DING Houcheng, LIAN Zhixu, DENG Quanlong, JIANG Zhongan, YANG Liwei, GE Mengyuan. Research on dust removal characteristics under synergistic action of vibrating wire grid and high-pressure spray[J]. China Safety Science Journal, 2021, 31(6): 106-112.

参考文献

[1] CHEN Dawei, NIE Wen, CAI Peng, et al. The diffusion of dust in a fully-mechanized mining face with a mining height of 7 m and the application of wet dust-collecting nets[J]. Journal of Cleaner Production, 2018,20(5):463-476.
[2] WANG Pengfei, FENG Tao, LIU Ronghua.Numerical simulation study on the dust distribution of full-mechanized face under the isolation effect of air curtain[J]. Mining Science and Technology, 2011,21(1):65-79.
[3] 林大建, 马文博, 黎良飞,等. 振弦栅的结构参数对净化流场影响的模拟[J]. 江西理工大学学报, 2020,41(1):64-70.
LIN Dajian, MA Wenbo, LI Liangfei, et al. Simulation study on the influence of structural parameters of vibrating wire grid on purification flow field[J]. Journal of Jiangxi University of Science and Technology, 2020,41(1):64-70.
[4] 邹明, 陈祖云, 饶贞标,等. 不同喷雾方式下低阻文丘里振弦栅除尘配置优化实验研究[J].中国安全生产科学技术, 2020,16(2):161-167.
ZOU Ming, CHEN Zuyun, RAO Zhenbiao, et al. Expermental study on optimization of dust removal configuration for low-resistance venture fiber grid under different spraying modes[J]. China Safety Production Science and Technology, 2020,16(2):161-167.
[5] TENG Chenzi, LI Jian. Experimental study on particle removal of a wet electrostatic precipitator with atomization of charged water drops[J]. Energy & Fuels, 2020(34):7257-7268.PH.
[6] 蒋仲安, 王亚朋, 许峰. 金属矿山气-水喷头雾化特性及降尘能力实验研究[J]. 中南大学学报:自然科学版, 2020,51(1):184-192.
JIANG Zhongan, WANG Yapeng, XU Feng. Experimental study on atomization characterstics and dust reduction capacity of gas-water nozzles in metal mines[J]. Journal of Central South University:Science and Technology, 2020, 51(1):184-192.
[7] 陈景序, 荆德吉, 葛少成. 气动涡旋雾幕性能影响因素试验及优化研究[J]. 中国安全科学学报, 2019,29(7):123-128.
CHEN Jingxu, JING Deji, GE Shaocheng. Experimental study on factors influencing performance of pneumatic vortex spray curtain and its optimization[J]. China Safety Science Journal, 2019,29(7):123-128.
[8] XU Donghai, HUANG Chuanbao, WANG Shuzhong. Characteristics analysis of water film in transpiring wall reactor[J]. International Journal of Heat and Mass Transfer, 2016,100:559-565.
[9] WANG Bo, TIAN Ruifeng. Investigation on flow and breakdown characteristics of water film onvertical corrugated plate wall[J]. Annals of Nuclear Energy, 2019,127:120-129.
[10] BABA S, KELES I. A novel approach to forced vibration behavior of thick-walled cylinders[J]. International Journal of Pressure Vessels & Piping, 2016,137:22-27.
[11] 吴志荣. 矿井湿式共振弦栅过滤除尘器研究及应用[D]. 湘潭:湖南科技大学, 2019.
WU Zhirong. Research and application of mine wet resonant chord filter dust collector[D]. Xiangtan: Hunan University of Science and Technology, 2019.
[12] 柳承徽, 陈先锋, 张威,等. 基于PIV的气动式细水雾流场研究[J]. 中国安全科学学报, 2020,30(7):120-126.
LIU Chenghui, CHEN Xianfeng, ZHANG Wei, et al. Research on pneumatic water mist flow field based on PIV[J]. China Safety Science Journal, 2020,30(7):120-126.
[13] LI Peng, ZHANG Xuhui, LU Xiaobing. Three-dimensional Eulerian modeling of gas-liquid-solid flow with gas hydrate dissociation in a vertical pipe[J]. Chemical Engineering Science, 2019,196:145-165.
[14] 王宝晴, 张超, 刘建. 不同风速下巷道断面微细粉尘分布模拟试验研究[J]. 中国安全科学学报, 2018,28(3):44-49.
WANG Baoqing, ZHANG Chao, LIU Jian. Simulation experimental study on fine dust distribution over roadway section under different wind speeds[J]. China Ssfety Science Journal, 2018,28(3):44-49.
[15] VIJAYA R, MURTHY V R. Analysis of stresses produced and dust generation during rock cutting by ANSYS software[J]. International Journal of Environmental Sciences, 2014,5(3):143-189.

振弦栅与高压喷雾协同作用下除尘特性研究^*

Research on dust removal characteristics under synergistic action of vibrating wire grid and high-pressure spray

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李刚, 刘海振, 杨庆贺, 牛伟锋. 带压开采煤层底板破坏特征与突水风险分析[J]. 中国安全科学学报, 2022, 32(5): 68-76.
[2]	郑艾辰, 向晋扬, 黄锋, 金成昊, 刘星辰. 空洞对隧道结构安全影响试验与模拟[J]. 中国安全科学学报, 2022, 32(5): 119-126.
[3]	游波, 毛聪, 施式亮, 刘何清, 鲁义, 李敏. 矿用通风服微空间环境变化特征研究[J]. 中国安全科学学报, 2022, 32(5): 185-193.
[4]	冯巩, 夏元友, 王智德, 严敏嘉. 基于位移信息融合的露天矿边坡动态预警方法[J]. 中国安全科学学报, 2022, 32(3): 116-122.
[5]	鲁义, 杨帆, 刘欢, 陈健, 王金鹏, 李文辉. 气凝胶消防救援服内衬的热阻计算^*[J]. 中国安全科学学报, 2022, 32(1): 201-207.
[6]	张钧祥, 刘彦伟, 任培良, 韩红凯, 左伟芹. 基于蠕变效应的穿层钻孔封孔参数优化与试验研究[J]. 中国安全科学学报, 2021, 31(7): 97-104.
[7]	荆德吉, 贾鑫, 张天, 孟祥曦, 马明星, 王志恒. 落煤过程中涡旋吹吸式除尘技术数值模拟及试验[J]. 中国安全科学学报, 2021, 31(6): 121-127.
[8]	朱豪豪, 郭海林, ZHUMAKELDI A. 外力作用下管道内表面缺陷处裂纹扩展研究[J]. 中国安全科学学报, 2021, 31(3): 66-72.
[9]	姜学鹏, 陈欣格, 郭昆. 侧部点式排烟隧道火灾临界风速研究[J]. 中国安全科学学报, 2021, 31(3): 105-111.
[10]	王亮, 孙毅民, 褚鹏, 赵伟, 邹双英. 基于时空分布特征的煤层瓦斯测压准确性研究[J]. 中国安全科学学报, 2021, 31(2): 40-47.
[11]	张萌, 刘宏磊, 乔文光, 高勋. 排土场稳定性影响因素显著性研究[J]. 中国安全科学学报, 2021, 31(2): 69-75.
[12]	曲国娜, 李红健, 贾廷贵, 强倩, 王来贵. 煤堆自燃特征的试验研究与数值模拟^*[J]. 中国安全科学学报, 2021, 31(12): 69-77.
[13]	荆德吉, 魏德宁, 马明星, 张天, 孟祥曦, 任帅帅. 胶带运输巷粉尘运移及气动喷雾降尘技术^*[J]. 中国安全科学学报, 2021, 31(11): 93-99.
[14]	崔村燕, 柳宁远, 段永胜, 同江. 长贮库房内偏二甲肼扩散浓度快速估算方法[J]. 中国安全科学学报, 2021, 31(1): 109-115.
[15]	李昂, 司俊鸿, 李雪冰. 泄爆门泄爆特性试验及数值模拟研究[J]. 中国安全科学学报, 2020, 30(8): 51-56.