Design And Implementation Of Coal Transportation Control System

At present, as China's rapid economic development of the excellent situation, China's power industry has entered a period of rapid development.The scale of the production of thermal power plants is increasing, and operating parameters are also more complex. The main auxiliary and other appropriate thermal equipment and system requirements are increasingly high. Thermal power plant coal handling system is an important part of a power-assisted system. It with other related mechanical and electrical equipment bears the thermal power plant fuel supply electricity mandate. When the thermal power plant is running, the improving of the input feeding system is the key factor to improve the efficiency of thermal power plants.The remote temporary control of the whole process of conveying has also put forward higher requirements to the automatic control system design. Traditional approach has a far cry from this requirement. So we selected today's most widely used PLC (programmable logic controller) control system in the control system to make this an ideal quickly become a reality.This paper first describes the sources and significance and analysis the status quo subject for a company-owned power plant coal handling control system.It overviews the specific circumstances of power plant coal handling system and the existing control system of the composition and characteristics.It analysis the exiting problems and discuss the need for transformation. Following it analysis a detailed of the PLC Research at home and abroad, as well as its coal handling system control advantages.Then it proposed improvement program over PLC-based thermal power plant coal handling program.for the power plant and process requirements of the actual situation in,from the system architecture, system design principles, configuration methods and other aspects of the main system constitutes a comprehensive exposition of Coal Handling.Then determine the appropriate program control system solutions.According to the actual situation of thermal power plant, it optimized choice necessaryly hardware, software and communications.Finally, it carried out key research to the system control mode, PLC control, communication between PC and PLC and the host computer monitoring system. Then realized implementation of the entire coal handling the integration of programmable system solutions. It carried out a detailed design to its functions so that the whole control process with the normal operation and incident handling, monitoring of various parameters, alarm signal is issued, the device regulation, control and protection equipment, risk function, the actual situation for thermal power plants to achieve the desired transformation of the purpose.