Optimization Design of Dust Prevention Equipment by Water-Cloud System of Powered Roof Support in Fully Mechanized and Roof Caving Coal Face with Annual Yield of 6 Million Tons
According to the actual situation of high quantity of productive dust of the 1303 face with annual yield of 6 million tons, the dust sources are analyzed. In order to reduce the dust concentration in this workface greatly, the methods, which are based on the 3D k-e model of turbulent flow, such as volume-control method and CFDs SIMPLE (Semi-lmplicit Method for Pressure-Linked Equations) method, are applied to do the ANSYS numerical simulation on the concentration and streamline of dust-flow field of the section. Then according to the performance test of nozzles for dust suppression of the powered support, the best type of nozzle, the water-supplying pressure of spraying and the nozzles diameter are chosen. Finally the optimized design scheme of dust suppression device of the face 1303 is proposed. By the industrial test of the face 1303, the plan is proved to be scientific and rational which reduces the dust concentration of different procedures greatly. And the plan is also useful for the mines safe production and workers health.
fully mechanized and roof caving powered roof support water-cloud system improvement
ZHUGE Fumin ZHOU Gang CHENG Weimin YANG Peng ZHANG Shengzhu NIE Wen
College of Resource & Environmental Eng,Shandong University of Science & Technology,Qingdao 266510,Shandong,China
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
1474-1478
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）