Metal & Mining
| Sat 18 Apr 2026
Beijing, April 18 -- Hebei Hanfeng Power Generation Co Ltd has submitted a patent application for Safe and Reliable Impeller Coal Feeder Control System. Shi Hui, He Ziqiang, Lou Xiaolei, Guo Zhenjiang, Shi Guanglu, Hu Renyuan, Jia Qiaochu, Zhang Zhihui, Sun Yanan and Meng Ying developed the invention.
The patent application n..