Screening apparatus for efficiently separating coarse material f

Details Screening apparatus for efficiently separating coarse material f Screening apparatus for efficiently separating coarse material f

1992-03-25

1993-08-03

Skaggs, H. Grant

Classifying, separating, and assorting solids

Sifting

Feeding and discharging

209243, 209316, 2093665, B07B 100

Patent

active

052320987

ABSTRACT:
The screening apparatus for efficiently separating coarse material from finer material, comprises a frame having a lower portion for resting on a surface, and a higher portion; a vibrating screen unit including a first material separating screen having a lower edge sloping downward with respect to said surface, and supported by the frame between the lower and higher portions; a shaker attached onto the vibrating screen unit for shaking the vibrating screen unit; a pivoting skip sufficiently wide for accommodating a payloader shovel, having two side arms pivotally connected onto the higher portion of the frame at a level that is sufficiently low for accommodating the payloader shovel; and a vibrator unit connected onto the skip. The apparatus also comprises at least one hydraulic cylinder having a first end connected onto the frame, and a second end connected onto the skip so that the skip can be vibrated and gradually pivoted with respect to the frame, by activating the vibrator unit and the at least one cylinder from a first position in which the skip can be loaded with material into a second position in which the material loaded in the skip can be unloaded over said screen.

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