Feeding arrangement
AssigneeValmet Corporation
InventorRobert WAHLBERG
Life of this patent
Estimating the term…
Abstract
A feeding arrangement comprising a transportation means (3) for transportation of material from a material supply to at least a first chute (7) and a second chute (8), a plug screw feeder (11) for feeding the material to the treatment stage. The plug screw feeder (11) is provided with a first inlet opening (12) connected to the first chute (7), which first chute (7) is provided between the transportation means (3) and the plug screw feeder (11). Further, the transportation means (3) comprises at least selectively openable first and second outlets (4, 5) arranged at different axial positions along the transportation means (2), which first outlet (4) is in connection with the first chute (7) and the second outlet (5) is in connection with the second chute (8).
Claims13
A feeding arrangement for feeding comminuted cellulose material to a treatment stage, the feeding arrangement comprising
- a transportation means for transportation of material from a material supply to at least a first chute or a second chute,
- a plug screw feeder for feeding the material to the treatment stage,
- the plug screw feeder is provided with a first inlet opening connected to the first chute, which first chute is provided between the transportation means and the plug screw feeder,
- the second chute is provided between the transportation means and the plug screw feeder,
- the plug screw feeder is provided with a second inlet opening in feeding communication with the second chute,
- further the transportation means is located above the plug screw feeder,
- characterized in that the transportation means comprises selectively openable first and second outlets arranged at different axial positions along the transportation means, which first outlet is in connection with the first chute and the second outlet is in connection with the second chute wherein said first chute is substantially vertically arranged so the material is gravity fed through the first chute and said second chute is in feeding connection with a force feed screw arranged to feed and compress the material before it enters the plug screw feeder.
Dependencies are inferred from the claim text.