变频器在刮板运输机中的应用

Application of frequency converter in scraper conveyer

刮板运输机是煤矿开采工艺过程中不可缺少的设备,其能否按工作需求实时起动直接影响着煤矿的生产效率。本文通过对刮板运输机的工作原理及起动过程中问题的研究,提出了一种基于变频器控制软起动的方法,该方法以80C196MC单片机为核心,采用绝缘栅双极型晶体管驱动模块,通过维持电动机恒转矩特性,保证了刮板运输机起动过程的平稳控制,减少了起动时对设备冲击,实现了刮板运输机在煤矿生产工作过程中的可靠性及安全性。

Scraper conveyer was an indispensable equipment in mining technology process,whether it could operate in time according to job demands directly affect production efficiency. Based on analyzing workinig principles of scraper conveyer and problems in starting process in this paper, the method of soft start through transducer control was put forward, which taking 80C196 MC single chip as core and adopting insulated gate bipolar transistor driver module. On the basis of keeping constant torque characteristic of electromotor, trim control in starting process of scraper conveyer was guaranteed, its impact to equipment was decreased, which realized reliability and security of scraper conveyer in production process.