Research Of Long-distance Monitor And Control System Based On PLC For Belt Conveyor In Coal Mine

Belt conveyor is a continuous transportation machinery, it is used widely in production line of mine,power plan,ports,iron and steel enterprises and light industry, it can transport the dispersed material, also can transport the items made into pieces. In the process of mining for coal mine, belt conveyor has an important role. Mine environment is severed, so the demand of the belt conveyor control system is higher, The performance of the quality directly affect the coal industry development and benefit. This paper developes a perfect function of mine belt conveyor remote monitoring system aims at the problems those belt conveyor control aspect still adopting human control field, accident hidden trouble is more of Huaibei Shuanglong Mining Limited Liability Company.The core of the system is Mitsubishi FX2N-32M type PLC, it insteads of the traditional SCM system, thus solves the complex design of software about single-chip microcomputer control system and the faults of the poorly anti-interference ability. In communications, mainly uses the ControlNet, it greatly improves the efficiency and performance of network, transmit data is more faster and more stable. By the configuration software designs the man-machine, interface intuitive, image displays the status of mine belt conveyor, setting management function and so on.PLC is the next machine of system, and PC is the upper computer of system. By serial communication modes realize the data transmission of upper computer. Realize PLC real-time communication of upper computer, reaches the purpose of real-time monitoring of down hole belt conveyor run by the upper computer.The system function is perfect, high reliability, thus greatly reduces the human resources, ensure the safety production in coal and improved coal production efficiency and economic benefit.