As the mechanized coal technology and productivity continues to increase sharply, the original coal belt conveyor system loading capacity has become a constraint to intensive production of the main bottlenecks of mining. In order to meet the needs of modern production, it is necessary for the original coal feeding system to optimize the design. This paper shows the design of electrical control ideas, that is mainly using a variable frequency control method. This new model described here has improved the typical system and has been reformed to allow it to enhance capacity. Safety has been greatly improved, and the failure rate is significantly reduced.© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.