采矿与安全工程学报Issue(2)：310-314,5.
固体充填采煤物料垂直投放缓冲装置振动和冲击分析
Vibration and impact analysis of buffer device of vertical material feeding system in solid backfilling coal mining
摘要
Abstract
Stability of the buffer device ensures the continuous solid materials feeding progress in backfilling coal mining. This paper models the buffer device according to a typical design with FEM software ABAQUS, then carries out modal analysis and frequency-response analysis under vertical ex-citation, and analyzes the impact response under simulated working conditions in which the material particles are represented by rigid balls. The buffer device’s resonance area under vertical excitation is near the first natural frequency 4.8 Hz, and this indicates fluctuations of flow rate should be avoided during the feeding progress. The response under simulated working condition shows that the buffer de-vice can bear the impact load under feeding flow at a rate of 700 t/h, and the critical spots are the joints of the key parts.关键词
固体充填采煤/垂直投放/缓冲装置/数值模拟Key words
fully mechanized backfilling coal mining/vertical transportation and feeding/buffer de-vice/numerical simulation分类
矿业与冶金引用本文复制引用
刘展,张吉雄,巨峰..固体充填采煤物料垂直投放缓冲装置振动和冲击分析[J].采矿与安全工程学报,2014,(2):310-314,5.基金项目
国家重点基础研究发展计划(973)项目(2013CB227905)；国家自然科学基金项目(51074165)；教育部新世纪优秀人才支持计划项目(NCET-11-0728)；中央高校基本科研业务费专项资金项目(2012ZDP01) （973）
