China University of Mining and Technology (Beijing) China Coal Zhangjiakou Coal Mining Machinery Corporation
Limited Mining Products Safety Approval and Certification Center

According to an intelligent importance of complete heavy scraper conveyor equipment to the realization of an automatic unmanned coal mining face, the paper pointed out the key technology to realize the intelligent of the complete equipment and compared and analyzed three soft start technologies. The paper introduce d two methods to realize frequency conversion speed regulated soft start as well as the harmonic restraint technology and frequency conversion control system. The pa per stated the chain tension automatic control principle realized with the pressure control of the cylinder at the extension tail. A Hall sensor was applied to detect a sens ing device of the chain fault. The paper provided architecture of the scraper conveyor remote performance monitoring diagnosis and control system, finally, pointed out t he intelligent problems to be solved of the complete heavy scraper conveyor equipment.

国家自然科学基金资助项目(U1361127)；