Means for degassing paper pulp stock

Gas separation – Means within gas stream for conducting concentrate to collector

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Details

55194, 162339, 162380, B01D 1900

Patent

active

044191090

ABSTRACT:
A means for degassing paper pulp stock, comprising an elongated horizontal cylindrical tank, a distribution pipe parallel to the tank and wherefrom departs a plurality of consecutive jet tubes for introducing pulp stock into the tank close to one end of the tank, an exit tube located close to the opposite end of the tank and towards which the pulp stock flows on the bottom of the tank, members to maintain the pulp stock level constant in the tank, an additional exit tube for returning to circulation the excess pulp stock that has entered the tank, and members for producing a vacuum in the tank. The distribution pipe and the flow therewithin are directed in opposition to the flow within the tank. The cross section area of the flow diminishes towards that end of the tank where the jet tubes are located, the diminishing flow cross section area extending at least over the region of one jet tube.

REFERENCES:
patent: Re27882 (1974-01-01), Burnham
patent: 1774363 (1930-08-01), Fletcher
patent: 2518814 (1950-08-01), Penten
patent: 2571219 (1951-10-01), Cew
patent: 3206917 (1965-09-01), Kaiser
patent: 3407569 (1968-10-01), Hendricks
patent: 3421622 (1969-01-01), Wurtman
patent: 3432036 (1969-03-01), Kaiser
patent: 4219340 (1980-08-01), Kaiser

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