Automation of Kiln Mill Drive in Cement Industry u sing PLC and SCADA
Automation of manufacturing operations helps in increasing the production, improving the product quality, enhancing the safety of the operators as their role get transfo rmed to supervisors and decreasing the cost of production. A Programmable Logic Controller (PLC) is nowadays key component for Industrial Automation. PLC helps in making the automation more flexible. SCADA systems became popular to arise the efficient moni toring and control of distributed remote equipment. Cement plants are one of the largest consumers of energy. Their electrical energy costs account for about 15 – 20 percent of the total production cost. The large fans and motors used in the production pro cess consume a major part of electrical energy. With the use of Variable Frequency Drives (VFDs) the energy consumption can be reduced from 90 kWHs/ton to about 70 kWHs/ton of cement produced. VFDs offer much more flexibility in operating ranges like speed variation from 0 to 100 percent and a considerable reduction in maintenance costs Based on the above concept a control system is developed for the kiln mill drive used in Cement Industry using PLC, and which can be interfaced using SCADA.