采矿与安全工程学报2012，Vol.29Issue(3)：312-316,5.
充填采煤固体物料垂直投放颗粒运动规律影响因素研究
Influence Factors of Solid Material Particles Motion in the Feeding System of Fully Mechanized Coal Mining and Backfilling
摘要
Abstract
In this paper, based on the solid material particle's differential motion equations (displacement, velocity, acceleration) in the pipeline of fully mechanized coal mining and backfilling, the particle diameter and density of the solid material are established as the main factors which affect its motion. In addition, the effect characteristics of the two main factors to the particle motions are studied by theoretical analysis and MATLAB software. The results indicate that the solid material particle experiences a varying acceleration motion in the feeding pipeline, and the total acceleration time increase as the particle diameter and density increase. According to the engineering conditions of No. 12 coal mine of Pingdingshan Coal Group, the proper diameter of the used solid material particle should be 80 mm, the feeding system has not been blocked heretofore, and the real feeding rate can reach to 500 t/h.关键词
固体充填采煤/投料系统/粒径/密度/垂直投放Key words
fully mechanized coal mining and backfilling/ feeding system/ particle diameter/ density/ vertical feeding分类
矿业与冶金引用本文复制引用
张吉雄,安百富,巨峰,姜海强,吴强..充填采煤固体物料垂直投放颗粒运动规律影响因素研究[J].采矿与安全工程学报,2012,29(3):312-316,5.基金项目
国家自然科学基金项目(51074165) （51074165）
教育部新世纪优秀人才支持计划项目(NCT-11-0728) （NCT-11-0728）
国家自然科学基金重点项目(50834004) （50834004）
江苏高校优势学科建设工程项目 （）
中央高校基本科研业务费专项资金项目(2011ZDP05) （2011ZDP05）
