Impregnation vessel with convergence side relief and method for heat injection at convergence

(19)

(11)

EP 2 017 382 A3

(12)	EUROPEAN PATENT APPLICATION

(88)	Date of publication A3:
	15.04.2009 Bulletin 2009/16

(43)	Date of publication A2:
	21.01.2009 Bulletin 2009/04

(21)	Application number: 08012827.5

(22)	Date of filing: 16.07.2008

(51)

International Patent Classification (IPC):

D21C 1/00^(2006.01)
D21C 3/24^(2006.01)
B65D 88/64^(2006.01)

D21C 7/00^(2006.01)
B65D 88/26^(2006.01)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
	Designated Extension States:
	AL BA MK RS

(30)

Priority:

16.07.2007 US 949987 P
18.06.2008 US 141244

(71)	Applicant: Andritz, Inc.
	Glens Falls, NY 12801 (US)

(72)	Inventor:
	Stromberg, Bertil Diamond Point New York 12824 (US)

(74)	Representative: HOFFMANN EITLE
	Patent- und Rechtsanwälte Arabellastrasse 4 81925 München 81925 München (DE)

(54)	Impregnation vessel with convergence side relief and method for heat injection at convergence

(57) An impregnation vessel (10) including: a vessel container including an upper inlet (14) to receive cellulosic material; a lower discharge port (27) to discharge the cellulosic material from a discharge section of the vessel container; a convergence section (22) internal to the vessel through which passes a flow of the cellulosic material in the vessel; a cavity (34) between an internal wall of the vessel and the convergence section (22), wherein the cavity (34) has a lower opening to the cellulosic material in the vessel and an upper section shielded from the flow of cellulosic material in the vessel, and an input port in the vessel and opening to the cavity (34), wherein the input port is connectable to a source of hot liquid to be added to the cellulosic material in the vessel.

Search report