PRESS ROLL COMB PLATE AND RELATED METHOD

摘要

The problem of deck channel rewetting that occurs when a drainage chamber in a roll upwardly approaches a horizontal line extending past the horizontal diameter of the roll is solved by using a comb plate comprising at least one comb tooth engaging the perforated plate and extending through a deck channel to a drainage channel such that the at least one comb tooth has a slope configured to direct a slurry suspension from the perforated plate into the drainage channel.

主权项

1. A roll press deck channel anti-rewet assembly comprising:
a roll having a support ribs arrayed across a length of the roll,
wherein adjacent support ribs define drainage channels, and wherein ends of the drainage channels are disposed at ends of the roll; a deck disposed on tops of the support ribs,
wherein the deck comprises deck rings defining a deck channel communicating with a top of the drainage channels and a perforated plate disposed on a top of the deck rings,wherein perforated plate has areas defining perforations in the communication with the deck channel; and a comb plate disposed under a perforated plate, the comb plate comprising a comb tooth extending through the deck channel toward a drainage channel, the comb tooth having a first end disposed on a back of the perforated plate and a second end opposite the first end,
wherein the first end and the second end of the comb tooth define a slope configured to direct filtrate from the perforated plate through the deck channel into the drainage channel.