Abstract: This article mainly aims at Chen Silou coal mine belt conveyor the defects existing in the operation process, put forward the targeted belt conveyor frequency conversion reconstruction scheme, a new integrated control two motors, has certain reference value for the modification of the old system, and obtained the practical application in the actual production, has been clear about the belt conveyor running its excellent frequency control of motor speed and the braking performance, and many other advantages, improve the quality of the underground transportation, reduces the incidence of belt conveyor system fault, achieved the purpose of safe and reliable transportation, and points out the importance of frequency conversion technology in the modernization of the mine production.

Key words: Belt conveyor, Frequency control of motor speed, Transformation and application