Classifying – separating – and assorting solids – Sifting – Combined type
Patent
1988-10-21
1991-03-12
Focarino, Margaret A.
Classifying, separating, and assorting solids
Sifting
Combined type
209235, 209240, 209260, 209412, B07B 900, B07B 128
Patent
active
049986252
ABSTRACT:
A riprap separation apparatus and method which riprap apparatus comprises a frame having an open space within the frame, an upper grizzly section composed of a tiltable upper grizzly section having a plurality of fixed, spaced apart bar elements so that riprap material discharged onto the grizzly section is separated into a large size material and a smaller size material which passes through the bar elements and a downwardly angled discharge chute to receive the larger size material and to deposit the large size material to one side of the apparatus. The apparatus includes a support section disposed to be within an earthen sloped access ramp to provide support for the apparatus and with the ramp to provide for the movement of vehicles to discharge riprap material into the grizzly section. The separation apparatus includes a soil separating apparatus within the open space of the frame to receive the smaller size riprap material and to separate the smaller size riprap into an intermediate size material to be deposited to other side of the separation apparatus and a finer size material within the open space and beneath the soil separating apparatus.
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Crowley Richard P.
Focarino Margaret A.
The Read Corporation
Wacyra Edward M.
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