The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2014
Filed:
Mar. 25, 2011
Applicants:
Daniel Trolin, Camacari, BR;
Fredrik Wilgotson, Sundsvall, SE;
Inventors:
Daniel Trolin, Camacari, BR;
Fredrik Wilgotson, Sundsvall, SE;
Assignee:
Valmet AB, Sundsvall, SE;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
D21C 7/14 (2006.01); D21C 7/06 (2006.01); D21C 3/24 (2006.01);
U.S. Cl.
CPC ...
D21C 3/24 (2013.01); D21C 7/06 (2013.01); D21C 7/14 (2013.01);
Abstract
The method and arrangement are for adding treatment liquid to comminuted cellulose material, preferably wood chips, during the manufacture of chemical pulp in a continuous process. The process is using a down-flow vessel wherein chips are descending down the vessel in a plug flow and wherein treated chips are continuously fed out at the bottom of the vessel. By arranging at least one telescopic pipe inside the vessel that extends down into the plug flow makes it possible to adjust the position for the addition of treatment liquid depending on current operational parameters.