Method of washing pulp using a single endless support fabric

Paper making and fiber liberation – Processes of chemical liberation – recovery or purification... – With washing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

162 4, D21C 902

Patent

active

055994261

ABSTRACT:
A method of washing cellulosic pulp to remove dissolved solids as well as dirt, inorganic fillers and fiber debris from the pulp. A thin mat of cellulosic pulp having a weight of 3 to 100 pounds of dry fiber per 1000 sq. ft. is applied to the upper surface of a porous, endless belt or fabric. The belt containing the pulp mat is moved in a generally horizontal path, and as it is moved in this path wash water is directed against the exposed upper surface of the mat through a series of longitudinally spaced showers to thereby impregnate the mat with wash water. Water removal devices, preferably table rolls, are located beneath the belt and downstream in the direction of travel from each shower to thereby remove the wash water from the mat. After moving through the path of travel, the washed pulp is removed from the belt, and the wash water removed from the mat can be used in other portions of the papermaking process.

REFERENCES:
patent: 2356285 (1944-08-01), Street
patent: 3065789 (1962-11-01), Beachler et al.
patent: 4680088 (1987-07-01), Bastanzuri
patent: 4686005 (1987-08-01), Biondetti et al.
patent: 4722793 (1988-02-01), Seifert et al.
Gilkey et, "A New Device For High Efficiency Washing of Deink Furnishes" 1988 Pulping Conference, New Orleans, LA, Oct. 30-Nov. 2 in TAPPI Proceedings (Atlanta, Ga, TAPPI Press, 1988), Book 3 pp. 649-654.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method of washing pulp using a single endless support fabric does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of washing pulp using a single endless support fabric, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of washing pulp using a single endless support fabric will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-675107

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.