超大型箕斗装卸载时间预测理论模型探讨  

Discussion on model of forecasting loading and unloading duration of oversize skips

作　　者：吴荣华[1] 曹国华[1] 王进杰[1] 王淼[1] 

机构地区：[1]中国矿业大学机电工程学院,江苏徐州221116

出　　处：《矿山机械》2012年第7期55-58,共4页Mining & Processing Equipment

基　　金：中国煤炭工业协会技术研究指导性计划项目(MTKJ2011-299)

摘　　要：根据理论力学和松散物料力学的理论推导出箕斗和定量斗任意位置处煤的内应力表达式,依据动量定理得出箕斗卸载口和定量斗卸载口的卸载速度表达式,最终建立了箕斗装卸载时间预测模型。以50t箕斗装卸载为例进行分析,探讨时间预测理论模型的正确性和可靠性,为主立井合理、安全设计提供参考。The paper deduced the expression of the internal stress of coal while the skip and the measuring hopper being at any position based on the theory of theoretical mechanics and the theory of bulk material me- chanics. In addition, it offered the expressions of outlet unloading velocity of the skip and the measuring hopper according to the theorem of momentum. Finally, the model of forecasting loading and unloading duration of the skip was built. Loading and unloading of 50 t skip serving as the example, the correctness and reliability of the forecasting model were discussed. The model offered references for reasonable and safe design of the main shaft.

关 键 词：箕斗 定量斗 装卸载 时间预测 

分 类 号：TD531.1[矿业工程—矿山机电]