基于S7-300PLC的球磨机配料过程自动控制系统

Automatic Control System of Ball Mill Blending Process Based on S7-300 PLC

球磨机配料过程是氧化铝行业对原料进行加工处理的重要工序。在该过程中,碱赤泥浆等多种原料被输送到球磨机中进行混合、研磨后形成生料浆。针对该工业过程的特点及技术要求,利用Siemens公司的S7-300 PLC设计并开发了球磨机配料过程的自动控制系统,包括系统的结构和功能、硬件设计、各种软件程序的开发等。其中软件程序的开发包括逻辑控制程序、连续控制程序和监控画面的开发。所设计和开发的控制系统不仅可以大幅度提高生料浆质量,同时可以节能降耗,为企业创造更多的效益。

Ball mill blending process is one of the key producing processes in the sintering alumina production.In this blending process,raw materials are ground and blended in the mill to produce raw slurry.The automatic control system was designed and developed by using S7-300 PLC of Siemens Company in consideration of this industry features and technique requested.The structure,functions and control strategy of this system were all discussed,and the control software was developed.Control software includes the logic control program,continuous control program and picture monitoring.The proposed control system can not only improve the quality of raw slurry,but also can lower energy consumption and create more profit for its enterprise.