Stone trap for an axial flow rotary separator

Details Stone trap for an axial flow rotary separator Stone trap for an axial flow rotary separator

1982-10-18

1984-04-03

Scherbel, David A.

Classifying, separating, and assorting solids

Adhesion

With selective differentiation

56DIG15, 209660, 209668, A01F 700, A01F 1220, A01F 1228

Patent

active

044401795

ABSTRACT:
In an axial flow rotary separator, a transition zone between the infeed section and threshing sections is modified to serve as a stone trap or arresting and ejecting device. Radially aligned inner and outer stone collars carried by the separator rotor and casing respectively, obtrude into the annular space between rotor and casing to define between them an annular slot or gate, decreasing or limiting the annular space so as to arrest the downstream passage of stones greater than a predetermined size. The inside surface of the casing immediately upstream of the stone collars is smooth and free of guide vanes to provide a track over which arrested stones may be propelled by conveyor flights of the rotor. A permanently open outlet in the stone track allows the rotor to eject stones tangentially and centrifugally into a stone sump connected to the casing. The stone sump is easily emptied by opening a door accessible from outside the combine body wall.

REFERENCES:
patent: 3589111 (1971-06-01), Gullickson et al.
patent: 3805798 (1974-04-01), Girodat
patent: 4330000 (1982-05-01), Peiler

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