Portable screen plant
First Claim
1. A portable screen plant for a crusher comprising a trailer supported on wheels suitable for highway transport, an inclined screen feed conveyor on the trailer for conveying crushed material received at a lower end thereof and discharging the crushed material at an upper end thereof, a screen on the trailer for receiving material discharged from the feed conveyor and for classifying the same, and a magnetic separator on the trailer movable to an elevated operational position above the feed conveyor adjacent the discharge end thereof and to a retracted position lower than the operational position to provide adequate roadway height clearance during transport.
2 Assignments
0 Petitions
Accused Products
Abstract
A portable screen plant for use with a portable crusher for recycling demolition materials and like work. The plant includes a highway trailer on which is carried an upwardly inclined screen feed conveyor and classifying screens beneath the feed conveyor. The frame is articulated such that its forward end can be raised during screening operation to suspend a magnetic separator at a high elevation over a zone adjacent the discharge end of the screen feed conveyor. During transport, the front frame section and magnetic separator are at a lower elevation to provide adequate height clearance for highway travel. The screen feed conveyor is articulated on the trailer to improve road clearance during transport and afford efficient material flow during operation.
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Citations
13 Claims
- 1. A portable screen plant for a crusher comprising a trailer supported on wheels suitable for highway transport, an inclined screen feed conveyor on the trailer for conveying crushed material received at a lower end thereof and discharging the crushed material at an upper end thereof, a screen on the trailer for receiving material discharged from the feed conveyor and for classifying the same, and a magnetic separator on the trailer movable to an elevated operational position above the feed conveyor adjacent the discharge end thereof and to a retracted position lower than the operational position to provide adequate roadway height clearance during transport.
- 12. A portable screen plant for use with a portable crusher comprising a trailer having a frame, wheels mounted on the frame adjacent a rear of the trailer for highway transport of the trailer, a fifth wheel pin mounted on the frame adjacent the front of the trailer for coupling the trailer to a highway tractor, the frame having front and rear sections hinged together, a screen feed conveyor carried on the rear section of the frame and inclined upwardly from the rear of the trailer towards the front of the trailer, the screen feed conveyor at its lower rearward end being adapted to receive material discharged from a crusher and at its upper forward end being adapted to discharge material, at least one classifying screen disposed below the screen feed conveyor adapted to receive material discharged from the screen feed conveyor, a fines conveyor below the classifying screen to convey material passing through the classifying screen towards the front of the trailer, a power actuator to move the front frame section from a generally horizontal highway transport orientation to a generally vertical operational orientation, a magnetic separator mounted on the front frame section in a manner wherein it provides a relatively low height when the front frame section is in the transport position and wherein it overlies the screen feed conveyor when the front frame section is in the operational position whereby it is adapted to separate magnetic material from other material being conveyed by the screen feed conveyor.
Specification