Hydraulic Pulper

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Hydraulic Pulper

 

a machine for crushing dry wood pulp, waste paper, and return broke and converting them to a water suspension (slurry) in the production of paper and cardboard. A hydraulic pulper consists of a cylindrical bath with cutters and a flat rotor with similar blades, which creates intense circulation of the suspension during rotation. Hydraulic pulpers may have intermittent or continuous operation. In the latter case a perforated sieve (extractor) is installed in the bottom of the bath for continuous drainage of the pulp suspension (slurry). The bath is up to 6 m in diameter and has a capacity of up to 180 tons per day.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.