Patents by Inventor Youfei ZHANG

Youfei ZHANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • PRE-FLOTATION HIGH EFFICIENCY SLURRY CONDITIONING DEVICE FOR WIDE-PARTICLE-GRADE FLOTATION
    Publication number: 20230138748
    Abstract: A pre-flotation high efficiency slurry conditioning device for wide-particle-grade flotation, suitable for coal slime flotation.
    Type: Application
    Filed: November 27, 2020
    Publication date: May 4, 2023
    Inventors: Xiahui Gui, Yaowen Xing, Shihao Ding, Yijun Cao, Jiongtian Liu, Tao Che, Fancai Meng, Youfei Zhang, Mengdi Xu, Min Liu, Liyong Wei
  • WIDE-SIZE-FRACTION FLOTATION SYSTEM AND PROCESS
    Publication number: 20210402414
    Abstract: A wide-size-fraction flotation system and process includes feeding coal slime to be floated into a stirrer, adding water to the floating coal slime in the stirrer, stirring, then feeding same into a grading cyclone through a first feeding pump for pre-grading; after grading of the coal slime in the grading cyclone, feeding overflow in the grading cyclone into a flotation column through a second feeding pump for flotation, discharging flotation tailings through an underflow port of the flotation column, collecting flotation concentrates through an overflow port of the flotation column and feeding same into a bubble generator through a fourth feeding pump, and the flotation concentrates passing through the bubble generator and being fed from the bottom of a hydraulic flotation machine; and feeding underflow in the grading cyclone into the hydraulic flotation machine through a third feeding pump, for flotation and recovery.
    Type: Application
    Filed: September 24, 2019
    Publication date: December 30, 2021
    Inventors: Yaowen XING, Xiahui GUI, Shihao DING, Mengdi XU, Yijun CAO, Youfei ZHANG, Yangchao XIA