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WO/2012/056108 |
The present invention relates to a method and arrangement for deaerating incoming thick stock or mixture of white water and thick stock in a pulp drying machine comprising a head box 1 for forming a web, a wire section 2 for removing whi...
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WO/2012/049367 |
The present invention relates to an arrangement and a method for treating a pulp to be fed to a screen room at a pulp mill. The arrangement comprises a tower (100) having an upstanding wall (102), and a bottom (108); a pulp inlet (112) i...
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WO/2012/045911 |
The present invention relates to a method of manufacturing a screen cylinder, and a screen cylinder that is particularly suitable for screening, filtering, fractionating, or sorting cellulose pulp or fiber suspensions of the pulp and pap...
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WO/2012/047700 |
Methods of producing mechanical pulps from lignocellulosic material including partial defibration of lignocellulosic material in a chip press followed by liquid impregnation, preheating the lignocellulosic material for 20 seconds or less...
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WO/2012/041369 |
The invention relates to a deflaking device for disintegrating flakes of a fibrous stock suspension (1) having a housing, in which a treatment tool of a drivable rotor (2) and a treatment tool of a stationary stator (3) are arranged, whe...
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WO/2012/042146 |
The invention relates to a method for refining, in an enzymatic medium, paper pulp comprising cellulose fibers from sources other than wood or from recycled material, wherein said pulp comprises more than 10% of fibers having a length gr...
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WO/2012/038245 |
The invention relates to a method and also to an apparatus for degassing a fibrous suspension (1) in a degassing chamber (2) which is under subatmospheric pressure and into which the fibrous suspension (1) is introduced and from which th...
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WO/2012/035049 |
The invention relates to a method for regulating the dirt speck area percentage of a running fibrous material web, in particular a paper, tissue or cardboard web, wherein an image is captured of a region of the running fibrous material w...
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WO/2012/030346 |
The present disclosure relates to a comminution apparatus including a rotational reducing unit that is rotatable about an axis of rotation. The rotational reducing unit includes a plurality of material reducing components that are mounte...
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WO/2012/025391 |
The invention relates to a disk filter for separating liquids from a suspension (1), in particular a fiber suspension, having a tank for receiving the suspension (1), a hollow shaft (5) that extends horizontally in the tank (2) and is ro...
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WO/2012/025538 |
The present disclosure relates to a process for the treatment of a paper pulp, wherein, in a first step, a composition of particles of lamellar silicate is added to said paper pulp, and in a second step, said paper pulp is passed through...
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WO/2012/025390 |
The invention relates to a disc filter for separating liquids from a suspension (7), in particular a fibrous material suspension, comprising a container (8) for receiving the suspension (7), a hollow shaft (5) which is rotatably mounted ...
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WO/2012/022537 |
The invention relates to a disc filter for separating liquids from a suspension (1), in particular a fibrous material suspension, comprising a container (2) for receiving the suspension (1), a rotatably mounted hollow shaft (3) extending...
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WO/2012/013407 |
The invention relates to a process and an arrangement for producing a fibrous suspension for producing a paper, board, tissue or another fibrous web by mixing at least one high-consistency stream (1) formed by treated fibrous material an...
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WO/2012/004459 |
A system and a method for producing fibrous raw material for thermal insulation in a thermomechanical process. In the production, cellulose-based chips (1 ) are conveyed from storage (10) to the removal of impurities; the impurities are ...
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WO/2012/004887 |
Provided is a screen device capable of effectively fiberizing an undefibrated piece in a reject according to the defibration state of the undefibrated piece. Specifically disclosed is a screen device provided with: a screen entrance cham...
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WO/2011/157529 |
The invention relates to a screening device for wet-sieving fibrous material suspensions, comprising a plurality of sorting slots (8) which are aligned essentially parallel to one another and through which the part of the fibrous materia...
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WO/2011/151239 |
The invention relates to a machine for producing a compacted or non-compacted sack paper web (12), said machine having a head box (1), a screen section (2), a press section (3), a dry section (4A and 4B) and a winding unit (7) and the pr...
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WO/2011/142711 |
Method and arrangement (1) for pumping pulp, which arrangement comprises a housing (2) in which a pulp pump (4) for pumping pulp is arranged, wherein a vacuum pump (5) for degassing the pulp inside the housing (2) is connected via a cond...
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WO/2011/141692 |
The present invention provides for the optimisation of conditions for treating pulp with a catalyst and hydrogen peroxide to produce a Freeness value (SR) in a web produced from the treated pulp such that the energy required in mechanica...
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WO/2011/140643 |
Cellulose nanofilaments from cellulose fibers, a method and a device to produce them are disclosed. The nanofilaments are fine filaments with widths in the sub-micron range and lengths up to a couple of millimeters. These nanofilaments a...
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WO/2011/134719 |
The invention relates to a method for measuring the pressure in the gas-containing interior (3) of a machine (2) for the treatment of a suspension (1), said suspension (1) flowing through said interior (3). This measurement is to be made...
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WO/2011/120763 |
The invention relates to a milling arrangement for milling aqueously suspended pulp fibres (6) between two milling surfaces (1, 2) which form a milling nip, move relative to one another and have milling strips (3, 4) and grooves (5, 6) e...
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WO/2011/114004 |
The invention relates to a process for fibrillating lignocellulosic material wherein the process comprises treating lignocellulosic material with ionic liquid and recovering basically intact fibres of said lignocellulosic material. Anoth...
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WO/2011/113998 |
The invention relates to a method for improving the properties of a paper product and to the corresponding paper product, wherein the paper product is formed from a fiber-based material. According to the invention the fines fraction is s...
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WO/2011/113990 |
Pressure filter for filtering pulp which pressure filter comprises a pulp container (1, 3) comprising a feed opening (12) of the pulp at its upper part, a cylindrical filtering surface (6) adjusted to the cylinder part of the container i...
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WO/2011/114003 |
The present invention relates to an arrangement and method for separating harmful material, especially sand, from a liquid stream or a low-consistency fibre suspension in a pulp production process. The arrangement comprises a cyclone-typ...
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WO/2011/107339 |
The method serves for the refining of cellulose fibres which are passed in aqueous suspension between refiner strips (3) located on the contact faces of refiner fillings. They are affixed either to a rotor or to a stator. In preferred em...
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WO/2011/098147 |
The invention relates to a method for refining aqueously suspended cellulose fibers and that uses at least two refiner fillings (1, 2), of which one is operated on a stator (8) and the other is operated on a rotor (9), and the suspension...
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WO/2011/095686 |
The present invention relates to a method of controlling filtrate flows and storing of filtrates of a fibre line in a pulp mill. In the method, the fluctuations in the amount of pulp in the pulp storage tank (3, 8, 17, 37) are not compen...
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WO/2011/095335 |
The present invention provides a method for the drying of microfibrillated cellulose wherein a liquid suspension of cellulose fibres and a liquid carbon dioxide miscible liquid is formed and the liquid suspension is defibrillated. The li...
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WO/2011/095686 |
The present invention relates to a method of controlling filtrate flows and storing of filtrates of a fibre line in a pulp mill. In the method, the fluctuations in the amount of pulp in the pulp storage tank (3, 8, 17, 37) are not compen...
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WO/2011/078760 |
By refining/grinding of pulp there is a need for using measurement information from traditional process variables in combination with measurement signals from the refining zones of refiners for estimating the quality of pulp output from ...
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WO/2011/077446 |
The present invention relates to a process of recycling the cotton fabrics. More particularly, the present invention provides a process, which provides a new way of manufacturing yarns i.e. yarns made of recycled cotton paper. The proces...
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WO/2011/076660 |
The invention relates to method for screening a fiber suspension (S) using a screening device, in particular a pressurized screen. Said device has at least one screen basket (1) inserted in a housing and enclosing a screen chamber (5). A...
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WO/2011/078764 |
The invention relates to a screening unit (100), a screening arrangement (200) and a method for inspecting and/or adjusting slots in a screening arrangement where the screening unit 100 comprises a circumferential outer axial slot(122)fo...
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WO/2011/072906 |
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...
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WO/2011/071668 |
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...
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WO/2011/069703 |
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 ...
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WO/2011/069704 |
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...
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WO/2011/068023 |
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 ...
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WO/2011/064458 |
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 ...
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WO/2011/064441 |
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...
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WO/2011/060892 |
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...
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WO/2011/055148 |
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...
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WO/2011/045090 |
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...
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WO/2011/045094 |
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...
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WO/2011/015708 |
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 ...
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WO/2011/004060 |
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...
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WO/2011/002373 |
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...
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