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Patent Searching and Data


Matches 251 - 300 out of 3,653

Document Document Title
WO/2011/072906A1
The invention relates to a method for producing a finished fibrous stock suspension for making a paper, cardboard, tissue web or another fibrous web from at least one high-consistency stream (1) containing fibrous material and filler and...  
WO/2011/069704A3
The invention relates to a disperging device for disperging fibrous material (1), comprising a housing (2), in which a first treatment tool (3) and a second treatment tool (4) are arranged. The treatment tools (3,4) respectively have a r...  
WO/2011/069703A3
The invention relates to a disperging device for disperging fibrous material (1), comprising a housing (2), in which a first treatment tool (3) and a second treatment tool (4) are arranged. The treatment tools (3, 4) respectively have a ...  
WO/2011/071668A1
A fibrillated fiber additive product and a process for making such fiber additives comprising the steps of providing a non- woody plant material, screening such material and subjecting the treated non-woody material to a refining step, s...  
WO/2011/068023A1
Provided are a novel process for producing cellulose nanofibers, and novel cellulose nanofibers. The process comprises fibrillating a pulp with a single-screw or multi-screw kneading machine in the presence of water to produce cellulose ...  
WO/2011/064458A3
The present invention relates to a method and arrangement for regulating a screening process and/or a screen by means of an automatic system during screening of fiber suspension in a screening apparatus having a screen drum for dividing ...  
WO/2011/064441A1
The invention relates to a method for manufacturing pulp. The manufactured pulp contains at least 30 w-% nanofibrillated cellulose material measured from the dried pulp. The method comprises the following stages: introducing raw material...  
WO/2011/060892A1
The invention relates to a separator for cleaning a fibrous suspension, having a cylindrical screen basket (1) which comprises a plurality of through-passages; having a rotor (2) which is enclosed by the screen basket (1) and is arranged...  
WO/2011/055148A1
The invention according to the present invention relates to the manufacture of paper and or boards and/or binding agents and a method and apparatus related to the same by providing for the defibrillation of cellulose fibres into a form i...  
WO/2011/045090A1
A method is described for controlling a process section for refining fibrous material such as wood pulp, cellulose pulp and the like. The process section has a refiner driven by a motor of which the speed is variable. Using a multivariab...  
WO/2011/045094A3
The invention relates to a pulper for comminuting and suspending fibrous material (F), consisting of a container (2) and at least one rotor (4) arranged in the container (2) for circulating a fibrous material suspension (1) located in th...  
WO/2011/015708A1
The invention relates to a method for producing mechanical pulp from a cellulose-based raw material by washing it in a chip washer (2). Water is removed from the washed raw material in a pulp thickener (4), and the pulp is refined in at ...  
WO/2011/004060A1
The present invention relates to a screen for fiber suspension, especially for removing coarse particles, said screen comprising a casing (1 ), conduits (2, 3, 4) connected thereto for fiber suspension to be fed into the apparatus and fo...  
WO/2011/002373A1
The present invention concerns a hydrocyclone for cleaning cellulose suspensions from light impurities i.e. a so called reverse hydrocyclone, having a base end and an apex end and a separation chamber having an elongated shape between th...  
WO/2011/001034A1
A refiner (1) for refining fibrous material comprises at least one first refiner element (3, 5) and at least one second refiner element (3, 5), the second refiner element being arranged around the first refiner element in such a manner t...  
WO/2011/002377A1
In the pulp and paper industry, there is a need to measure process variables spatially directly in the refining zone of refiners, in order to control the process to reduce the variations in energy consumption and pulp quality. This is ac...  
WO/2010/144926A1
The invention relates to a device for separating coarse solids from a viscous fluid, for example a fiber suspension, comprising means for separating coarse materials from the acceptable material and means for discharging and removing the...  
WO/2010/146223A1
The invention relates to a method of making a paper or paper board, in which method cut pulp is prepared by cutting basic cellulosic fiber pulp at the consistency of at least 25 % so that the average fiber length of the basic pulp is dec...  
WO/2010/142846A1
The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension, and...  
WO/2010/142845A1
The invention relates to a method for manufacturing nanostructured paper or board and a novel paper or board. The method comprises providing a liquid suspension of nanocellulose-containing material, forming a web from the suspension and ...  
WO/2010/139856A1
The invention relates to a method for coating a wear part, the use of a wear part coated according to the method, a wear part and a refiner. According to the invention, at least part of the wear part surface is treated with an organic-in...  
WO/2010/139049A1
A method has been developed that estimates from the on line measurements of readily available process variables the proportion of the mass of fibre in the refining zone of a chip refiner relative to the mass with a full refining zone. Th...  
WO/2010/138059A1
A device (302) for preventing the rewetting of pulp in an apparatus for processing pulp, the apparatus comprising at least one rotatable drum (202, 204) provided with a permeable outer surface (208, 208) and a plurality of axial filtrate...  
WO/2010/138056A1
A device (302; 801) for preventing the rewetting of pulp in an apparatus for processing pulp, the apparatus comprising at least one rotatable drum (202, 204) provided with a permeable outer surface (206, 208) and a plurality of axial fil...  
WO/2010/133749A1
Pulper used in the paper industry that processes pulp which pulper comprises a pulper container (19), a punched plate screen (15) installed to the mentioned container, a binnacle (8) out of the lower part (3) of the container for the mas...  
WO/2010/130493A1
The invention relates to an assembly for feeding a fibrous suspension (1) to at least one headbox (8) of a paper or board machine having at least one dilution device (5), in which the fibrous suspension (1) is produced by mixing a thick ...  
WO/2010/132164A1
A device including a hollow cylindrical body, first and second stationary coaxial annular screening screens disposed within the body, and a rotor within the body and positioned between the screens to conduct the slurry through the first ...  
WO/2010/131016A3
A method for preparing an aqueous suspension comprising microfibrillated cellulose and inorganic particulate material, the method comprising a step of microfibrillating a fibrous substrate comprising cellulose in an aqueous environment i...  
WO/2010/126420A1
There is a need to measure process variables spatially directly in the refining zone of refiners in the pulp and paper industry. This is accomplished by the invention and considers a control procedure where the difference between the dis...  
WO/2010/124911A2
The invention relates to a method for treating fiber suspensions (S) in a screening device having a closed housing (2) that comprises a screen (3), where a part of the substances supplied with the fiber suspension (S) is rejected and eva...  
WO/2010/124911A3
The invention relates to a method for treating fiber suspensions (S) in a screening device having a closed housing (2) that comprises a screen (3), where a part of the substances supplied with the fiber suspension (S) is rejected and eva...  
WO/2010/117312A9
The invention is related to a pulp treating apparatus such as a pressure diffuser. The apparatus incorporates a screen having a considerable weight that is moved by a connecting rod 5 in a reciprocating manner between an upper and lower ...  
WO/2010/116026A1
A press (1) comprises a distribution device (2) arranged to receive a liquid suspension of solid biological material and to distribute said suspension horizontally along a dewatering drum (8). A guide plate (22) and a trough (24) arrange...  
WO/2010/117312A1
The invention is related to a pulp treating apparatus such as a pressure diffuser. The apparatus incorporates a screen having a considerable weight that is moved by a connecting rod 5 in a reciprocating manner between an upper and lower ...  
WO/2010/112519A1
The present invention relates to a process for the production of suspensions of nano- fibrillar cellulose by providing cellulose fibres and at least one filler and/or pigment; combining the cellulose fibres and the at least one filler an...  
WO/2010/112667A1
A refining surface (1, 2) of a refiner for a refiner intended for defibrating lignocellulose-containing material. The refining surface has a feed edge (14) directed in the direction of the feed flow of the material to be refined and a di...  
WO/2010/108746A1
The invention relates to a strainer for treating a fibrous material suspension suitable for producing a paper, cardboard, tissue, or other fibrous material web, having a plurality of strainer perforations (1, 2), the smallest cross-secti...  
WO/2010/108859A1
The invention relates to a method for feeding a deaerating /defoaming agent into a process liquid, especially in a paper machine. The invention also relates to a device for carrying out said method. The method is characterised in that th...  
WO/2010/107369A1
The invention relates to a an arrangement (100) for screening of cellulose pulp in several stages comprising at least two screening means (4, 8) within the same apparatus which are enclosed by a housing (1). The arrangement comprises a m...  
WO/2010/106220A1
Method, system and refiner for refining of wood chips or pulp fibers are provided. The refining takes place in at least two subsequent refining stages (2, 3), through which the wood chips or pulp fibers are fed by a carrier medium, where...  
WO/2010/106225A1
A refining surface (1, 2) of a refiner for a refiner intended for defibrating lignocellulose-containing material. The refining surface has a feed edge (12) directed in the direction of the feed flow of the material to be refined and a di...  
WO/2010/104456A1
The invention relates to a feeding apparatus for cellulosic material comprising a screw (16) feeding the material towards an anvil whereby a pressure tight material plug (40) is formed. The screw (16) comprises a peripheral part (22) hav...  
WO/2010/101518A1
Device for counteracting rewetting in a wash press for pulp, which comprises at least one insert unit (14) including a filtrate barrier (16) having an axial extension length (L) corresponding to an important part of the length of the fil...  
WO/2010/086065A1
The invention relates to a method and to a system for preparing a finished fiber suspension for the production of a web of paper, cardboard, tissue or any other fiber by mixing at least one high consistency flow (1) constituted of freshl...  
WO/2010/077172A1
The present invention relates to a process for pretreatment of wood raw material comprising two stage milling, wherein at the first stage a coarse milling is carried out, followed by an extraction of pitch and at the second stage a ultra...  
WO/2010/077170A3
The present invention relates to a process for production of organic solvents, mainly butanol, using the anaerobic fermentation by butanol, acetone, and ethanol-producing bacteria, also the invention relates to a system for carrying out ...  
WO/2010/071911A1
A device for comminuting a cellulose-containing feedstock in wood processing, in particular in the production of pulp, paper and wood panels, with the aid of grinding discs (1) rotating in relation to one another a small distance apart a...  
WO/2010/069151A1
A multi-stage process for extracting cellulose from plant comprises the following steps: firstly impregnating the plant with dilute alkali; steaming under increased pressure and then beating and washing the pulp, and thus obtaining cellu...  
WO/2010/069667A1
The method is used to process raw materials (M) that contain waste paper. A fibrous material suspension suitable for producing graphic papers is to be formed. After producing an aqueous fibrous material suspension (S) and fractionating (...  
WO/2010/066514A3
The invention relates to an arrangement for obtaining a fiber suspension for producing a web of paper, cardboard, tissue, or other fibers from at least one high-consistency flow (1) containing fibrous material and filling material in the...  

Matches 251 - 300 out of 3,653