球磨机筒体振动信号监测方法研究  

On the Monitoring Method of Vibration Signal in the Ball Mill Shell

作　　者：王恒[1] 贾民平[2] 黄鹏[2] 陈左亮[3] 

机构地区：[1]南通大学机械工程学院,南通226019 [2]东南大学机械工程学院,南京211189 [3]大唐南京下关发电厂,南京210011

出　　处：《机械科学与技术》2013年第12期1812-1816,共5页Mechanical Science and Technology for Aerospace Engineering

基　　金：国家自然科学基金项目(50775035);江苏省自然科学基金项目(BK2011391);南通市应用研究计划项目(BK2011036)资助

摘　　要：针对球磨机料位检测的现实需要,提出了一种球磨机筒体振动信号采集方法。结合筒内料位分布特点,确定了筒体振动传感器类型和测点位置;给出了筒体信号无线采集的总体结构;基于钢球冲击模型和理想化钢球分层模型,并结合采集的筒体实际振动数据确定了振动信号的采样频率、采样点数、采样区域等参数,某电厂现场采集球磨机筒体振动数据表明了该方法的有效性。Aiming at the measurement requirement for the filling level of ball mill, a new monitoring approach for vibration signals of the mill shell is proposed. Firstly, the type and install position for sensors are determined com- bining the distribution of filling level in ball mill. Secondly, the main structure of wireless sampling system is giv- en. Finally, the sampling frequency, number and region for the vibration signal of mill shell are obtained based on the steel ball impact model and the ideal layered model of the steel ball combining the practical vibration data of power plant. The results demonstrate that the present monitoring method is effective.

关 键 词：球磨机 料位 筒体振动信号 采集 

分 类 号：TK223[动力工程及工程热物理—动力机械及工程]