Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Method and arrangement of impregnating chips










Image Number 2 for United States Patent #7615134.

The method and an arrangement are for improved impregnation of chips in association with the manufacture of chemical cellulose pulp. Un-steamed chips are fed into an impregnation vessel (30) in which a fluid level (LIQ_LEV) is established under the highest level (CH_LEV) of the chips. An improved impregnation arrangement for the chips is obtained by the addition of impregnation fluids (BL1/BL2/BL3) with increasing temperatures at different heights (P1, P2, P3), and by the establishment of a counter-flow zone (Z1) in the uppermost part of the impregnation vessel. The requirement for steaming may in this way be dramatically reduced while at the same time the amount of expelled waste gases may be minimized. A major part of the volatile compounds present in the wood are bound to the impregnation fluid (REC) that is withdrawn.








 
 
  Recently Added Patents
Advanced joint detection in a TD-SCDMA system
Hybrid CMOS nanowire mesh device and PDSOI device
Liquid crystal display device
Complete context search system
Focusing apparatus that effectively sets a focus area of an image when a focusing mode is changed
Authentication for social networking messages
Phase lock loop with injection pulse control
  Randomly Featured Patents
Boat with enhanced access to engine and stern
Class-D amplifier
Use of cationic layered materials, compositions comprising these materials, and the preparation of cationic layered materials
Portion of a bottle
Fin thyristor-based semiconductor device
Biosynthetic genes and host cells for the synthesis of polyketide antibiotics and method of use
Liquid thermal management socket system
Portable tanning unit
Filter unit for freezable liquids, particularly for a metering unit of an exhaust gas treatment device
C-11 substituted steroids for treating menopausal complaints