基于PLC的秸秆压块机生产线控制系统设计

The PLCControl System Design of Straw Briquetting Machine Production Line

秸秆压块成型是秸秆综合利用重要途径之一,而目前秸秆压块机生产效率低、能耗高、人工成本高,严重影响经济效益。为此,提出了基于PLC控制的秸秆压块机生产线的控制系统设计,构建了秸秆压块机生产线PLC控制系统的硬件系统,并进行软件开发。该控制系统采用了西门子S7-2 0 0系列CPU作为主控单元,通过触摸屏对料仓转速、主轴转速及成型温度等参数进行实时监测与设置,对秸秆压块机喂入量采用PID控制,使秸秆压块机在稳定的工况下生产,有效提高了秸秆压块机生产线的生产率以及压块成型质量。

Straw briquetting forming is one of the important ways for comprehensive utilization of straw .At present , straw briquetting machine of China has low production efficiency , high energy consumption and high labor costs , seriously af-fects the economic benefits .This paper puts forward a design of PLC control of the straw briquetting machine production line, and builds hardware system and software development of the straw briquette machine production line control system . The control system adopts siemens S 7-200 series CPU as main control unit .Through the touch screen in real-time moni-toring and setting of parameters of stock bin speed , spindle speed , molding temperature etc .Straw briquette machine feed rate uses PID control , So it makes the straw briquetting machine production in a stable condition and improves the productivity of straw briquetting machine production line and briquette quality .