Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Gustavsson; Lennart
Address:
Karlstad, SE
No. of patents:
27
Patents:












Patent Number Title Of Patent Date Issued
8168041 Device for diluting shredded cellulosic particles/chips May 1, 2012
The device is for the dilution of dewatered cellulose pulp that maintains a consistency of 20-30% or greater. By shredding of the pulp to a finely divided dry-granulate, dilution to a homogeneous consistency in the medium consistency range can take place exclusively through hydrodynamic
8052843 System and a method for the steam pre-treatment of chips in association with the production of c November 8, 2011
The vessel in which the chips are pre-treated with steam (ST) is provided with a ventilation channel at the top of the vessel for the leading away of weak gases to a weak gas system (NCG). A simple safety system has been installed with the aim of guaranteeing that these weak gases do not
7998310 Method for impregnating chips August 16, 2011
A method for the impregnation of untreated chips during the manufacture of chemical pulp. The untreated chips are fed without preceding steam treatment into an impregnation vessel that has an upper part with a first area (A1) and a lower part with a second area (A2) that is larger than
7901541 Method and arrangement for impregnating chips March 8, 2011
The method is for the impregnation of chips during the manufacture of chemical pulp. The chips are continuously fed without preceding steam treatment to the top of an impregnation vessel that maintains atmospheric pressure. Impregnation fluid (BL) is added to the impregnation vessel and
7887671 Method for dilution of cellulose pulp February 15, 2011
The method and a device is for the dilution of dewatered cellulose pulp that maintains a consistency of 20-30% or greater. By shredding of the pulp to a finely divided dry-granulate, dilution to a homogeneous consistency in the medium consistency range can take place exclusively thro
7713383 Arrangement for feeding a slurry of chips and liquid May 11, 2010
The method and arrangement is for the feed of a chips suspension from one vessel to a subsequent digester in a continuous cooking process for the production of chemical cellulose pulp. The vessel has an inlet defined therein for the input of chips and an outlet defined therein for the
7615134 Method and arrangement of impregnating chips November 10, 2009
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.
7540937 Method for continuous cooking June 2, 2009
A procedure for the continuous cooking of chemical pulp, comprising an impregnation vessel 101 and a digester 102. The chips are impregnated in the impregnation vessel 101and are fed after impregnation together with circulation fluid through a transfer line 103 to a top separator 105 on
7422657 Method for the feed of cellulose chips during the continuous cooking of cellulose September 9, 2008
The method is for feeding a chips-slurry from a low-pressure to a high-pressure system during the continuous cooking of chemical cellulose pulp. The feed takes place through a sluice feeder 53' between these systems. The sluice feeder is provided with a rotor with through-pockets 1,
7381302 Method and arrangement for impregnating chips June 3, 2008
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.
7374637 Method of bleaching cellulose pulp with a main conduit for wash liquor and filtrate May 20, 2008
The method is for bleaching cellulose pulp in a bleach line that has at least two bleaching steps. The filtrate distribution is led up through the bleaching line counter-currently to the flow of cellulose pulp established in the bleaching line. A single joint main conduit is used for
7279070 Method for the continuous cooking of wood raw material for cellulose pulp October 9, 2007
The invention concerns a simplified method for the continuous cooking of wood raw material in the form of sawdust for the production of cellulose pulp, The method does not require any thickening stages and can be carried out with a minimum of process equipment. The complete process can
7112256 Method for continuous cooking of chemical pulp to improve heat economy September 26, 2006
A method for the continuous cooking of chemical pulp with the aim of achieving improved heat economy in a digester system having a vessel (1) for impregnation and a vessel (2) for cooking the impregnated cellulose chips. A part of the black liquor (14) withdrawn from the digester (2) is
7077931 Method and bleaching line with a main conduit for wash liquor July 18, 2006
The method is for bleaching cellulose pulp in a bleach line that has at least two bleaching steps. The filtrate distribution is led up through the bleaching line counter-currently to the flow of cellulose pulp established in the bleaching line. A single joint main conduit is used for
6966970 Method for supplying washing liquid to a process for cooking cellulose pulp November 22, 2005
The invention relates to a method for supplying washing liquid to a digester (1) for cellulose pulp and a subsequent diffuser washing device (2a, 2b). A high, disturbance-free production capacity can be obtained by using a common feed pump (P1) which, via a main feed line (10), supplies
6843885 Method for controlling the cooking temperature in a continuous vapour phase digester January 18, 2005
The method is for controlling the cooking temperature in a continuous vapour phase digester for chip-shaped cellulose material. A high pressure is established in the vapour phase largely by means of steam, without risk of attaining excessively high temperatures in the cooking. A temp
6722130 Method of producing process steam from a black liquor April 20, 2004
Method of producing a process steam from a first black liquor derived in connection with the production of paper pulp, wherein the first black liquor is treated to give a second black liquor of a higher concentration than the first black liquor as well as a liquid of low concentration,
6699357 Process for continuous cooking of pulp March 2, 2004
The invention relates to a process for continuous cooking of wood chips at elevated pressure and temperature in a vertical digester (1) for production of chemically dissolved pulp. Fiber material and cooking liquor are introduced at the top of the digester and pulp is discharged from the
6332950 Method in connection with the pretreatment of comminuted fibrous material December 25, 2001
A method in connection with the pretreatment of comminuted fibrous material intended for chemical cellulose pulp production. The fibrous material is fed through a low pressure system that has a gas phase part followed by a liquid phase part. The liquid phase part includes a low pressure
6280567 System and method for treatment of cellulose-containing material prior to pulp digestion August 28, 2001
The invention relates to a process system and a method for preliminary treatment of disintegrated cellulose-containing material, preferably wood chips, prior to pulp digestion. The process system and the method according to the invention make use of a process vessel intended to funct
6254723 Method for continuous cooking in a single-vessel digester July 3, 2001
In a single-vessel system for continuous cooking of kraft pulp, chips and liquor are conveyed from a high pressure feeder in a transfer line to a first end of a digester. A part of the liquor is separated from the chips that are withdrawn from an outlet defined in an upper part of the di
6007680 Apparatus for safely conducting pressurized peroxide bleaching December 28, 1999
Apparatus for safely carrying out pressurized peroxide bleaching of pulp in a bleaching vessel at a consistency exceeding 8%, the bleaching vessel designed for at least 0.5 MPa overpressure, with the pulp being pumped to the bleaching vessel through a mixer at a temperature exceeding 90.
5954066 Method for controlling chemical reaction September 21, 1999
Method for safely carrying out chemical reactions in a vessel having a discharge end, wherein a control valve is provided at the discharge end, and wherein reacted and unreacted chemicals are cleared from in front of the control valve thus reducing the risk of reacted and unreacted c
5900123 Device for distributing liquid, especially washing liquid, for washing paper pulp May 4, 1999
The present invention relates to a device for distributing liquid, especially washing liquid for washing paper pulp, in a diffuser having at least one screen plate (1), comprising an apparatus for supplying the washing liquid and at least one elongated nozzle (2, 5) which can be conn
5876560 Method and apparatus for removing gas from a fibre-liquid suspension March 2, 1999
The invention relates to a method and arrangement for removing gas from a fibre/liquid suspension in a fibre treatment line in a pulp mill, which line includes at least one stage in which the fibre/liquid suspension is treated and/or stored in a large container (2) before being conveyed
5858170 Method for pressurized peroxide bleaching January 12, 1999
The present invention relates to a method for safely carrying out pressurized peroxide bleaching of pulp, at a consistency exceeding 8%, preferably 10-16%, in a bleaching vessel (1), designed for at least 0.5 MPa overpressure, preferably 0.7 MPa overpressure, with the pulp being fed
4280902 Separation of dense impurities from a fluid July 28, 1981
An apparatus and method for removing dense impurities, such as sand, from a fluid, such as liquids use in the production of cellulosic pulp. A vertically upstanding tank substantially circular in cross-section is provided including a top wall, bottom wall, and side wall. The fluid with










 
 
  Recently Added Patents
Inverter, NAND gate, and NOR gate
Methods and apparatuses for configuring and operating graphics processing units
Message processing method and apparatus based on the SIP protocol and an IP communication system
Cancer treatment kits comprising therapeutic antibody conjugates that bind to aminophospholipids
Semiconductor device
Container pack
Monitoring device for monitoring a display device
  Randomly Featured Patents
Semiconductor device and method for fabricating the same
Web of record members
Mobile base for robots and the like
Lens wafer with removable coating
Polymer composition
Self-cleaning water filter
Image processing apparatus, method and computer-readable medium
Windshield washer control system
Medical device for fluid collection and method to fill multiple specimen tubes
Oxymethylene copolymer composition for stretching material, stretching material, structures, and process for producing the same