Feeding system having pumps in parallel for a continuous digester

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United States of America Patent

PATENT NO 8574402
APP PUB NO 20110259539A1
SERIAL NO

12933423

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Abstract

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The feed system is for a continuous digester where at least two pumps are arranged in parallel at the bottom of a pre-treatment vessel. The outlets of the pumps are combined at a merging point before a common transfer line extends to the top of the digester. The system makes it possible to provide a feed system with an improved accessibility and operational reliability, and to operate the main part of the pumps at optimal efficiency even if the production capacity is reduced.

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Patent Owner(s)

Patent OwnerAddress
METSO PAPER SWEDEN AKTIEBOLAG851 94 SUNDSVALL SUNDSVALL

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Saetherasen, Jonas Hammaro, SE 23 38
Samuelsson, Anders Hammaro, SE 44 904
Trolin, Daniel Karlstad, SE 13 24

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