Resources Contact Us Home
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 A major part of the volatile compounds present in the wood are bound to the impregnation fluid (REC) that is withdrawn.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
Apparatus and method for controlling a tunable matching network in a wireless network
Dynamically updating privacy settings in a social network
Curable inks comprising surfactant-coated magnetic nanoparticles
Vehicle wheel rim protector
Antenna arrangement and antenna housing
Apparatus and method for phase synchronization in radio frequency transmitters
Hydrogen generation device and fuel cell system
  Randomly Featured Patents
High voltage protection circuits
Independently adjustable extensions for leveling a ladder
Method of operating a plasma reactor chamber with respect to two plasma parameters selected from a group comprising ion density, wafer voltage, etch rate and wafer current, by controlling cham
Portable car mounted phone
Readout system and method for an image sensor
Marine propeller, propeller system and components belonging thereto, and a method of connecting a propeller
Differential pressure valve
Recording medium having recorded thereon coded information using plus and/or minus rounding of images
Transmitter for communications system
Conical microlith catalytic reaction system