| 摘要 |
A method of screening and dewatering mineral hard-to-classify raw material includes supply of loose material on a sifting surface of a screen, which interacts with impact elements, sifting and moving the material in the mode with tossing by longitudinal and transverse vibrations. Within the period of time from the moment of detachment of the material subject to screening from the sifting surface up to its falling one or more additional pulses is imparted to the sifting surface by additional hammers. Time of pulse injection is adjusted by change of a gap between the sifting surface and hammers or change of natural frequency of the hammers. |
