Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – Continuous chemical treatment or continuous charging or...
Patent
1975-09-10
1979-01-23
Bashore, S. Leon
Paper making and fiber liberation
Processes of chemical liberation, recovery or purification...
Continuous chemical treatment or continuous charging or...
162 49, 162 52, 162 63, 162 68, 162237, 162238, 162246, 162251, D21C 102, D21C 324, D21C 700, D21C 706
Patent
active
041359666
ABSTRACT:
A process and apparatus for automatically maintaining the moisture content in a continuously conveyed batch of porous materials is described. The porous material is continuously fed through a treatment tank, wherein it is contacted with a liquid to be absorbed therein. The moisture content of the material is continuously monitored as a direct function of the combined weight of the material and the treatment tank to generate correction signals. The correction signals are utilized to vary the dwell times (up or down) of the porous material in the treatment tank. By varying the dwell times the porous material is contacted by the treating liquid for either larger or shorter periods until the weight of the tank and material therein returns to the weight desired. Thus, the moisture content of the porous material is continuously adjusted to a substantially constant value.
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patent: 2858211 (1958-10-01), Durant et al.
patent: 3012927 (1961-12-01), Polleys
patent: 3326743 (1967-06-01), Bryce
patent: 3434920 (1969-03-01), Green
patent: 3607618 (1971-09-01), Uschmann
patent: 3898124 (1975-08-01), Olson
"Changes in Kraft Continuous Digester Instrumentation;" Morrison, Paper Trade Journal, Sep. 14, 1964.
"Computer Applications: Woodlands Through Bleach Plant-II;" Grant, Paper Trade Journal, Jun. 21, 1971.
"A Method for Determining the Moisture Content and Specific Gravity of Wood Chips in a Pressurized Water System;" Schmidt; TAPPI, Apr. 1968, vol. 51, No. 4.
Alvo Steve
Bashore S. Leon
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