斜坡道产尘规律及降尘技术研究
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摘要
在斜坡道产尘机理研究的基础上,测试分析夏甸金矿-770～-760 m水平斜坡道内粉尘浓度,得出了含尘气流分布规律,并结合现场环境,提出了一种粉尘浓度超限智能自动化喷雾降尘技术,实现了喷雾自动化及人体智能化感应防湿。治理后,总粉尘浓度由47 mg/m~3降至7 mg/m~3,降尘效率为85.1%,呼吸性粉尘浓度从36.3 mg/m~3降至5 mg/m~3,降尘效率达86.2%,降尘效果显著,耗水量较普通喷雾节约了2/3,且降低了巷道温度,在治理粉尘的同时,节约了资源,提高了工作效率。
Based on the study of ramp dust production mechanism, dust concentration of horizontal ramp in-770～-760 m level of Xiadian Gold Mine is tested and analyzed, the airflow distribution regularity is discussed. Combing with field environment, the dust concentration overrun intelligent automatic spray dust removal technique is proposed, the goal of spray automation and human body intelligent induction moisture prevention are realized. The dust governance effects show that the total dust concentration is decreased from 47 mg/m~3 to 7 mg/m~3,dust removal efficiency is 85.1%,respiratory dust concentration is decreased from 36.3 mg/m~3 to 5 mg/m~3,dust removal efficiency is 86.2%,the dust removal effects is significant, water consumption is 2/3 less than that of conventional spray, roadway temperature is lowered, and related resources is saved, besides that, the working efficiency is improved.
Based on the study of ramp dust production mechanism, dust concentration of horizontal ramp in-770～-760 m level of Xiadian Gold Mine is tested and analyzed, the airflow distribution regularity is discussed. Combing with field environment, the dust concentration overrun intelligent automatic spray dust removal technique is proposed, the goal of spray automation and human body intelligent induction moisture prevention are realized. The dust governance effects show that the total dust concentration is decreased from 47 mg/m~3 to 7 mg/m~3,dust removal efficiency is 85.1%,respiratory dust concentration is decreased from 36.3 mg/m~3 to 5 mg/m~3,dust removal efficiency is 86.2%,the dust removal effects is significant, water consumption is 2/3 less than that of conventional spray, roadway temperature is lowered, and related resources is saved, besides that, the working efficiency is improved.
引文
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[2] 李德文,郭胜均.中国煤矿粉尘防治的现状及发展方向[J].金属矿山,2009(S1):747-752.
[3] 于先坤,杨洪.金属矿山职业病危害现状调查与探讨[J].现代矿业,2016(5):173-175.
[4] 华绍广.冶金矿山职业病危害因素控制研究的必要性探讨[J].现代矿业,2011(5):34-37.
[5] 张泾生,余永富.我国黑色冶金矿山的选矿技术进步[J].金属矿山,2000(4):8-15.
[6] 李德文.粉尘防治技术的最新进展[J].矿业安全与环保,2000,27(1):10-12.
[7] 刘桂丽.金属矿山爆破除尘降毒实验研究[J].矿业研究与开发,2011,31(2):76-78.
[8] 邹常富,刘勇,马威,等.综掘工作面粉尘的产生及运移规律研究[J].矿业安全与环保,2014,41(6):26-28.
[9] 李勇,刘连生.金属矿山爆破产生粉尘及有害气体的智能控制应用研究[J].中国高新技术企业,2015(24):159-160.
[10] 邹常富.高压喷雾参数优化及应用研究[J].矿业安全与环保,2016,43(6):9-12.
[11] 汤梦,刘荣华,王鹏飞,等.高压喷雾雾化特性及降尘效率实验研究[J],矿业工程研究,2015,30(1):76-80.
[12] 陈斌,郭烈锦,张西民,等.喷嘴雾化特性实验研究[J].工程热物理学报,2001,22(2):237-240.
[13] 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.