The Online Monitoring System Of Belt Conveyor Running State

Belt conveyor is an important transportation equipment and plays a vital role incoal mine safety transportation. But during operation there are often manymalfunctions, such as deviation, smoke, slipping and even mechanical fault. Once afault shutdown occurs, it will cause huge economic losses and may even lead toaccidents. So, according to the actual situation of the coal mine and technologicalrequirement, it is necessary to design an on-line monitoring system of belt conveyorrunning state. The system monitors the key parts of the belt running parameters inreal-time and reads the relevant operation parameters of the equipment, includingvibration, temperature, speed, smoke, deviation, coal pile, tearing, etc. Comparing theresults with the setting warning and alarm value, the system will provide advancedwarning when monitoring results exceed the warning value; when it exceeds the alarmvalue, the belt conveyor stops urgently which indicates equipment failure. The systemcan run in real time and master the states of the belt conveyor to find abnormalities andsolve problems before faults occur. It can ensure the safe and reliable operation of beltconveyor and avoid the occurrence of fatalities, in addition to reduce unnecessaryeconomic losses.This paper takes the belt conveyor of Dongtan coal mining east area as researchobjects, using sensor technology, PLC control, touch screen technology and remotemonitoring technology. There are mainly three sub-stations of the designed conveyorbelt on-line monitoring system, respectively: the belt conveyor of East Wing ThirdDistrict, the second belt conveyor of East Wing and the belt conveyor of East Wing.Hardware system consists of sensors, PLC, touch screen, the host computer; Softwareuses MCGS software and programming software STEP7-Micro/WIN. The main statecharacteristics are vibration parameters, temperature, at the same time take speed,smoke, deviation, coal piling, tearing into account, where vibration parameters and the temperature can be displayed in real time. It can protect the belt conveyor through theswitch signals and has the functions of real-time monitoring, state analysis, faultwarning and diagnostic capabilities which ensure the transportation of coal mineproduction safety and improve production efficiency. What’ more, it can reach theunattended goal and improve the information technology and automation level of coalproduction field.