초록 ▼

A disc screen classifies material by size. The disc screen includes a frame, a plurality of shafts mounted on the frame parallel with one another and a first stage including discs mounted on the shafts in a substantially coplanar row. Each of the discs has a perimeter shaped to maintain the space be

A disc screen classifies material by size. The disc screen includes a frame, a plurality of shafts mounted on the frame parallel with one another and a first stage including discs mounted on the shafts in a substantially coplanar row. Each of the discs has a perimeter shaped to maintain the space between discs substantially constant during rotation. A second stage includes discs mounted on the shafts in a substantially coplanar row. Each of the discs has a perimeter shaped to maintain the space between discs substantially constant during rotation. A receiving section agitates debris while the debris moves at an angle up to a given elevation. A roll over section drops the materials down to a discharge position for feeding onto a discharge section. The materials are dropped from the roll over so that the debris either falls vertically or flips over further promoting separation. The discharge section again agitates the debris while moves up a second incline until the larger debris discharges out a rear end.

대표청구항 ▼

[ We claim:] [1.] A screen for classifying material by size comprising:a receiving section having a front end and a rear end, the receiving section inclining upward from the front end to the rear end at a given angle;a plurality of shafts mounted on the receiving section substantially parallel with

[ We claim:] [1.] A screen for classifying material by size comprising:a receiving section having a front end and a rear end, the receiving section inclining upward from the front end to the rear end at a given angle;a plurality of shafts mounted on the receiving section substantially parallel with one another, the shafts extending up from the front end to the rear end of the receiving section in a substantially coplanar alignment at the given angle;discs mounted on the shafts, each of the discs having an arched perimeter shape that maintains a space between discs substantially constant during rotation while moving material on said discs up and down;a discharge section having a front end and a rear end, the front end of the discharge section located underneath the rear end of the receiving section; anda roll over section joined to the rear end of the receiving section and arching downward from the rear end of the receiving section, the roll over section suspended above the discharge section thereby dropping material while moving in a downward direction in a downwardly angled and forward direction onto the discharge section.