| 摘要 |
<p>A vibratory screening machine (10) including a frame (11, 12), a vibratory motor (42) on said frame, a bed (69, 104, 110, 111) on the frame (12), a plurality of screens (112) on the bed, a chamber (73, 74, 75) below each of the screens, and a source (159) of suction and pressure in communication with each of the chambers (73, 74, 75). A method of screening a slurry containing a mixture of fine and coarse particles and liquid including the steps of providing a vibratory screen (112), passing the mixture across the vibratory screen, applying suction on the opposite side of the vibratory screen from the mixture to draw liquid and fine particles from the mixture through said screen and into a chamber (73) below the screen, and either intermittently terminating the suction or applying pneumatic pressure to the chamber.</p> |
