葛少成1,
陈曦1,2,
王式耀1,
姜朋3
1.辽宁工程技术大学安全科学与工程学院,阜新 123000
2.辽宁工程技术大学安全工程技术研究院,阜新 123000
3.吉林省煤业集团有限公司,长春 130012
基金项目: 国家自然科学基金资助项目(51274116,51604143)
Influences factor analysis of induced airflow at transshipment point based on dimensional analysis and application
ZHANG Xinghua1,,GE Shaocheng1,
CHEN Xi1,2,
WANG Shiyao1,
JIANG Peng3
1.College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China
2.Research Institute of Safety Engineering and Technology, Liaoning Technical University, Fuxin 123000, China
3.Jilin Coal Industry Group, Changchun 130012, China
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摘要:为解决转载点粉尘污染问题,采用量纲分析法将影响转载点诱导风量的因素进行分类推演,建立转载系统诱导风量计算模型,并搭建转载点诱导气流实验装置,系统分析物料在转载过程中给料量、落料高差、下料管倾角和皮带运行速度等因素对产生诱导气流的影响,拟合得出转载点诱导风量计算模型的数学表达式。结果表明:转载点物料的给料量和落料高差是影响诱导风量的主要因素；对量纲分析所得模型利用实验数据进行拟合所得各参数系数的标准误差优于0.032 1,实验结果与数学模型计算结果误差小于9.48%。该计算模型可用于估算转载点诱导风量大小,为现场的粉尘治理及生产实践提供参考依据。
关键词: 转载点/
量纲分析/
诱导风量/
影响因素
Abstract:In order to solve the problem of dust pollution at transshipment point, the dimensional analysis method was used to deduce the factors which influence the airflow volume.The transshipment induced airflow experimental device was built, at the same time, the mathematical expressions of the transshipment induced airflow calculation model was fitted by analyzing the factors, including quantity of material feeding, discrepancy in altitude, angle of inclination, belt running speed. The results shows that, the quantity of material feeding and the discrepancy in altitude is the main factor affecting the induced airflow volume. The standard error of the parameters of the model is better than 0.032 1. The error between the experimental results and mathematical model calculation results is less than 9.48%. The computational model can be used to estimate the transshipment induced airflow volume,and provide a reference for dust control field.
Key words:transshipment point/
dimensional analysis/
induced airflow volume/
influence factor.
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| [2] | 孙百存,甘小根,齐振磊.带式输送机转载装置的研究与应用[J].煤矿机械,2009,0(5):120-121 |
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| [8] | UCHIYAMA T, NARUSE M.Numerical simulation of gas-particle two-phase mixing layer by vortex method[J].Powder Technology, 2002,5(2):111-121 |
| [9] | 刘启觉, 王继焕.胶带输送机转运点局部密闭罩内诱导空气量的计算[J].武汉粮食工业学院学报,1988(1):50-54 |
| [10] | 严兴忠.落料诱导空气量的理论计算法[J].工业安全与粉尘,1993(8):11-18 |
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| [12] | 樊航.自由下落颗粒流卷吸空气量及颗粒运动特性研究[D].西安:西安建筑科技大学, 2015 |
| [13] | 陈曦, 葛少成.诱导气流对转载点雾化特性影响规律的数值模拟与试验[J].煤炭学报,2015,0(3):603-608 |
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基于量纲分析的转载点诱导气流影响因素分析与应用
张兴华1,,葛少成1,
陈曦1,2,
王式耀1,
姜朋3
1.辽宁工程技术大学安全科学与工程学院,阜新 123000
2.辽宁工程技术大学安全工程技术研究院,阜新 123000
3.吉林省煤业集团有限公司,长春 130012
基金项目: 国家自然科学基金资助项目(51274116,51604143)
关键词: 转载点/
量纲分析/
诱导风量/
影响因素
摘要:为解决转载点粉尘污染问题,采用量纲分析法将影响转载点诱导风量的因素进行分类推演,建立转载系统诱导风量计算模型,并搭建转载点诱导气流实验装置,系统分析物料在转载过程中给料量、落料高差、下料管倾角和皮带运行速度等因素对产生诱导气流的影响,拟合得出转载点诱导风量计算模型的数学表达式。结果表明:转载点物料的给料量和落料高差是影响诱导风量的主要因素；对量纲分析所得模型利用实验数据进行拟合所得各参数系数的标准误差优于0.032 1,实验结果与数学模型计算结果误差小于9.48%。该计算模型可用于估算转载点诱导风量大小,为现场的粉尘治理及生产实践提供参考依据。
English Abstract
Influences factor analysis of induced airflow at transshipment point based on dimensional analysis and application
ZHANG Xinghua1,,GE Shaocheng1,
CHEN Xi1,2,
WANG Shiyao1,
JIANG Peng3
1.College of Safety Science and Engineering, Liaoning Technical University, Fuxin 123000, China
2.Research Institute of Safety Engineering and Technology, Liaoning Technical University, Fuxin 123000, China
3.Jilin Coal Industry Group, Changchun 130012, China
Keywords: transshipment point/
dimensional analysis/
induced airflow volume/
influence factor
Abstract:In order to solve the problem of dust pollution at transshipment point, the dimensional analysis method was used to deduce the factors which influence the airflow volume.The transshipment induced airflow experimental device was built, at the same time, the mathematical expressions of the transshipment induced airflow calculation model was fitted by analyzing the factors, including quantity of material feeding, discrepancy in altitude, angle of inclination, belt running speed. The results shows that, the quantity of material feeding and the discrepancy in altitude is the main factor affecting the induced airflow volume. The standard error of the parameters of the model is better than 0.032 1. The error between the experimental results and mathematical model calculation results is less than 9.48%. The computational model can be used to estimate the transshipment induced airflow volume,and provide a reference for dust control field.
