概述了国内、国外电达机的发展概况，提出了板式电速机的设计原则、结构及工作原理，设计了适合导体矿物精选用的电极结构装置．该新型电造机经工业试验及生产应用，结果表明，当给矿品位TiO2为94．16％时，经一次电选，金红石精矿可达特级品，其品位TiO2＞95．00％，回收率为95．91％． The development of domestic and foreign electric aircraft is summarized. The design principle, structure and working principle of the plate electric speed engine are put forward. The electrode structure device suitable for conductor mineral selection is designed. The new electric machine after industrial test and production applications, the results show that when the grade of ore to TiO2 is 94.16%, after a power election, rutile concentrate reachable grade, its grade TiO2> 95.00%, recovery The rate was 95.91%.