Sluice for discharging bulk material
AssigneeValmet Fibertech AB
InventorLennart Gustavsson
Life of this patent
Estimating the term…
Abstract
A sluice (2) for discharging bulk material, in particular fibers, from a cyclone device comprises a circumferential wall (4) in the form of a curved bendable band, which defines a generally cylindrical chamber (10) with an inlet (38) for receiving bulk material from the cyclone device and an outlet (14) for discharging bulk material substantially tangentially from the cylindrical chamber. A sluice wheel (16) is rotatable in the chamber about a vertical axis (12) extending through the center of the sluice wheel for sluicing the bulk material in batches from the inlet through the chamber to the outlet. The inlet (38) is situated centrally above the sluice wheel for supplying bulk material substantially axially to the slice wheel.
Claims10
A sluice adapted for discharging air entrained bulk material from a cyclone, comprising:
- a circumferential wall defining a generally cylindrical chamber having an inlet adapted for receiving said bulk material from said cyclone and an outlet extending substantially tangentially to said cylindrical chamber for discharging bulk material therefrom, and
- a sluice wheel comprising a lower gable wall which is rotatable in said chamber about a vertical axis extending through the center of said sluice wheel for sluicing said bulk material in batches from said inlet through said chamber to said outlet, said sluice wheel rotating at a speed sufficient to create a centrifugal force so as to radially pack outwardly said bulk material away from said vertical axis of said sluice wheel,
- wherein said inlet is located centrally above said sluice wheel supplying bulk material substantially axially to said lower gable wall of said sluice wheel.
A sluice adapted for discharging bulk material from a cyclone, comprising:
- a circumferential wall defining a generally cylindrical chamber having an inlet for receiving said bulk material from the cyclone and an outlet extending substantially tangentially to said cylindrical chamber for discharging bulk material therefrom, and
- a sluice wheel, which is rotatable in said chamber about a vertical axis extending through the center of said sluice wheel for sluicing said bulk material in batches from said inlet through said chamber to said outlet,
- wherein said inlet is located centrally above said sluice wheel for supplying bulk material substantially axially to said sluice wheel,
- wherein said sluice wheel comprises a plurality of at least substantially radial sluice walls including radial inner and outer ends and distributed spaced apart from one another along the circumference of said sluice wheel, said sluice walls abutting sealingly with said radial outer ends against said circumferential wall except at said outlet, and said radial inner ends of said sluice walls are situated at a predetermined distance from the center of said sluice wheel, so that a central free space communicating with said inlet is formed in said sluice wheel.
Dependencies are inferred from the claim text.