Slotted screen for digester
AssigneesJack T. Baker, Myles M. Miller
InventorJack T. Baker
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Abstract
A screen panel for a wood-chip digester, comprises a screen plate having a plurality of slots therein that are curved in the form of an arc. Each slot has a generally parallel-sided middle portion in the middle of the thickness of the screen plate, which middle portion has a width in the range of from 3 mm to 10 mm, and a portion that tapers out at an angle on each side of the middle portion, at a half-angle in the range of from 10° to 20°, for approximately one quarter of the thickness of the plate. All of the slots have their concave sides facing in the upstream direction of chip flow in the digester.
Claims3
A batch wood-chip digester having a screen panel comprising a screen plate having a plurality of slots therein, wherein said slots are curved and have a width in the range of from approximately 3 mm to approximately 10 mm.
Dependencies are inferred from the claim text.