大功率高压变频刮板输送机成套装备及技术研究

Study on the Completed Equipment and Technique of High Power High Voltage Frequency Conversion Scraper Conveyor

为保障神华神东矿区千万吨级工作面安全高效生产,研制了大功率高压变频刮板输送机成套装备。研发了大功率高压变频及控制技术,解决重载软启动、多电机功率平衡和自动调速等问题;创新了中部槽的材料及工艺,提高了刮板输送机的强度、耐磨性、可靠性和使用寿命;发明了蓄能恒压链条自动张紧装置,减轻过渡板磨损,延长链条使用寿命;研发了远程在线监测诊断与控制技术,实现变频刮板输送机智能化控制。工业应用表明设备运行平稳可靠,经济社会效益显著。

In order to ensure the safe and efficient production of 10 million-tons coal face in Shenhua Shendong mining area,a complete set of equipment of high-power high-voltage frequency conversion scraper conveyor was developed.High-power and high-voltage frequency conversion and its control technology were proposed to solve the problems of heavy-load soft-startup,power balance for multi-motor driving and automatic Speed-regulating.The design,material and manufacturing process of the middle groove were innovated.Therefore,the strength,wear resistance,reliability and service life of the scraper conveyor were improved.The automatic tensioning device of the scraper chain has been invented to reduce the wear and improve the service life.The remote on-line monitoring diagnosis and control technology is developed to realize the intelligent control of the scraper conveyor.Industrial applications demonstrate that the operation of the completed equipment is stable and reliable and remarkable economic and social benefits are obtained.