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WO/2010/043279A1 |
The invention relates to a method for removing gas (4) from a medium (2) in the form of a fiber material suspension used for producing a paper, cardboard, tissue, or other fiber material web, or from process water or a filtrate used or p...
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WO/2010/043756A1 |
The present invention relates to a method of manufacturing a rotor for a screening apparatus and a rotor structure for a screening apparatus. The rotor structure of the invention is particularly suitable in screening fibre suspensions of...
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WO/2010/043766A1 |
A processing system for wood-fibre pulp comprises a separator (102), a treating process (112) and a return device (100). The separator (102) separates vessels (126) from the wood-fibre pulp (120, 122) for the treating process (112), whic...
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WO/2010/031119A1 |
The invention provides a separation device (20) for separating pulp from a feed material, the separation device comprising a tank (1 ) for receiving the feed material, a rake assembly (21 ) mounted for rotation within the tank (1) to mov...
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WO/2010/028711A1 |
The invention relates to a method for refining cellulose fibers in aqueous suspension, using a plurality of refiner fillings having refining edges, of which one is operated on at least one stator (8) and another is operated on at least o...
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WO/2010/023363A1 |
.In a method for manufacturing mechanical pulp, particles (1 ) of fiber raw material are worked for detaching fibers. The fiber raw material is compressed at the same time when it is rubbed in a direction (H) differing from the main dire...
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WO/2010/018120A2 |
The invention relates to an arrangement for fractionating a suspension of fibrous material suitable for creating a web of paper, board, tissue or some other fibrous material into a short fibre fraction with a high proportion of short and...
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WO/2010/012105A1 |
A discharge grate assembly for at least partially guiding slurry from a mill shell chamber in a rotating mill shell to a discharge trunnion thereof via a pulp lifter chamber. The discharge grate assembly includes a body having a number o...
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WO/2010/002348A1 |
An apparatus and a method for controlling a flow of pulp suspension from a container (104, 204) where the pulp suspension is processed and/or stored, which container (104, 204) is pressurized to a pressure (p?) and is provided with at le...
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WO/2009/155541A2 |
A refiner plate assembly and method includes an annular arrangement of adapter subplates that mount to a refiner disk of a disk refiner using a conventional mounting technique, such as bolted in a standard pattern associated with the par...
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WO/2009/153413A1 |
A refiner (1, 18, 19), method for refining fibrous material and a blade segment for a refiner. The refiner comprises at least one first refining surface (4, 11) and at least one second refining surface (4, 11), which are arranged at leas...
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WO/2009/153412A1 |
A refiner (1, 18, 19) for refining fibrous material comprises at least one first refining surface (11) and at least one second refining surface (4), which are arranged at least partly substantially opposite to one another in such a manne...
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WO/2009/141147A1 |
The invention concerns a filtering drum (1) for fibre suspensions in water, comprising a plurality of shaped bars (2; 11, 13) with mainly longitudinal development, arranged side by side in order to define a tubular structure having subst...
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WO/2009/138469A1 |
The present invention relates to a method for producing a size reduced product and a method for producing a cellulosic product, a device for producing a size reduced product, a size reduced product and a paper made from the size reduced ...
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WO/2009/135987A2 |
The present invention relates to a method for improving the operation and/or adjustablity of sealing elements of a drum washer for washing fiber suspension. In the drum washer (1) said sealing elements (12) are adapted in a space (6) for...
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WO/2009/136846A1 |
A refining segment (24), intended for refiners of disc-type for working fibrous material, comprises a first portion (40) having a first pattern of coarse bars (44) and a second portion (42) having a second pattern of fine bars (46). The ...
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WO/2009/122986A1 |
Provided is a tissue paper for domestic use, which is soft, is comfortable to the touch, and has excellent strength. The tissue paper for domestic use is characterized by containing a pulp obtained by applying, to pulp fibers, an impact ...
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WO/2009/115647A1 |
The present invention relates to refiner or disperser blade made of a steel alloy by casting.The alloy comprises of, in weight percent: 0.6 to 4 wt-% carbon (C), 0.5 to 1.5 wt-% silicon (Si), 0.4 to 1.5 wt-% manganese (Mn), 12 to 28 wt-%...
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WO/2009/109278A1 |
The invention relates to a method for setting a sorting system (1) sorting at least one acceptable material from a mixture comprising the acceptable material and at least one further material, having an input (3) for feeding a mixture in...
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WO/2009/096890A1 |
A hydrocyclone (1) for separating a liquid mixture into a heavy fraction and a light fraction, comprising a housing (2) forming an elongated separation chamber (3) having a circumferential wall (4), a base end (5), an apex end (6), means...
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WO/2009/077001A1 |
The invention relates to pulp treatment by pulp fractionation such that the pulp is fractionated into a short fiber fraction and a long fiber fraction, wherein the short fiber fraction bypasses the refiner and the long fiber fraction is ...
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WO/2009/075643A1 |
An apparatus for washing and dewatering pulp comprising a first and a second rotatable press roll (102, 104) having a permeable outer surface (108, 108), and a casing provided with a vat (114, 116, 118) in which the press rolls (102, 104...
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WO/2009/075641A1 |
An apparatus for washing and dewatering pulp comprising a first and a second rotatable press roll (102, 104) having a permeable outer surface (106, 108), and a casing comprising a vat (114, 116, 118) in which the press rolls (102, 104) a...
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WO/2009/075645A1 |
A method for processing pulp in an apparatus for washing and dewatering pulp, and a system for controlling this apparatus, the apparatus comprising two rotatable press rolls (102, 104) having a permeable outer surface (106, 108), the pre...
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WO/2009/075640A1 |
An apparatus for washing and dewatering pulp comprising a first and a second rotatable press roll (102, 104) having a permeable outer surface (106, 108), and a casing comprising a vat (114, 116, 118) in which the press rolls (102, 104) a...
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WO/2009/075642A1 |
An apparatus for washing and dewatering pulp comprising a first and a second rotatable press roll (102, 104) having a permeableouter surface (106, 108), and a casing comprising a vat (114, 116, 118) in which the press rolls (102, 104) ar...
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WO/2009/068739A1 |
A refining surface (2) of a refiner stator (4) for a refiner intended for defibrating lignocellulose-containing material. The refining surface (2) comprises a feed edge (17) oriented in the direction of the feed flow of the material to b...
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WO/2009/062287A1 |
A screen basket with replaceable profiled bars is described herein. The screen basket includes profiled bars evenly spaced circumferentially to form a plurality of continuous slots that covers the whole basket length. The profiled bars a...
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WO/2009/056682A1 |
A screen cylinder (1) for purifying or classifying pulp mixture. The screen cylinder (1) comprises screen wires (3) forming a cylindrical screening surface (2) of the screen cylinder (1) and at least one screen wire (3) comprises apertur...
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WO/2009/053331A1 |
The invention discloses a refined fiber having an average length of 2 to 4 millimeter, a filler retention value of at least 18%, and a green strength value of at least 1.8 mJ/mm2. The fiber is obtainable by a process wherein never dried ...
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WO/2009/050338A1 |
The invention relates to a process for improving the characteristics of nonwood pulp by using selective removal of fines.
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WO/2009/050335A1 |
A method of manufacturing a screen cylinder (1), and a screen cylinder. Screen wires (2) forming the screen surface of the screen cylinder (1) are fitted in connection with supporting bars (4) of the screen cylinder (1), into grooves (5)...
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WO/2009/044506A1 |
A natural fiber is beaten by a biaxial kneading machine. The beaten natural fiber is made finer by a bead mill so that it has a BET specific surface area of not less than 1 m2/g. By this process, a fine fiber for obtaining a rigid paper-...
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WO/2009/043932A1 |
The present invention provides system for controlling a wood particle size distribution in a wood particle manufacturing process. The system comprises a chipper adapted to receive and chip raw wood material into wood chips having crack-f...
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WO/2009/040464A1 |
The present invention relates to an apparatus for screening a fibrous suspension. Especially it relates to the construction of a rotor element for the screen. The rotor element comprises a front surface facing the flow, an upper surface ...
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WO/2009/040477A1 |
A refiner (1) comprises a stator (2) and a rotor (4), The stator and the rotor comprise a flat portion (7, 9) and a conical portion (8, 10). The conical portion has a first end (17) of smaller diameter (D1) and a second end (18) of great...
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WO/2009/040476A1 |
A refiner (1 ) comprising a stator (2) and a rotor (4). The stator (2) and the rotor (4) comprise a flat portion (7, 9) and a conical portion (8, 10). The conical portion has a first end (17) of smaller diameter (D1) and a second end (18...
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WO/2009/026861A1 |
The device according to the invention serves for classifying or concentrating liquids laden with fibres or solids by means of screening or filtration. For this purpose, a fine cylindrical screen is arranged in a vertical position in a ho...
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WO/2009/021805A1 |
The invention relates to a method and arrangement for generating a finished pulp suspension for producing a paper, cardboard, tissue, or other pulp web (9) by mixing at least one high-consistency flow (1) of newly prepared pulp and fille...
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WO/2009/016246A1 |
The invention is a filtering basket (1; 100) for fibres in water dispersion, comprising a plurality of profiled bars (2, 3; 103) arranged side by side to define a tubular structure with the inner lateral surface provided with a plurality...
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WO/2009/015700A1 |
The invention relates to a method for washing lignocellulosic raw material and/or fibrous material. Said raw material and/or fibrous material initially passes through a screw conveyor (6), a liquid is added to the raw material and/or fib...
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WO/2009/015701A1 |
The invention relates to a method for producing fine material from fibrous material rejects. Said method consists of the following steps: the fibrous material rejects are collected after a first grinding and a first sorting of the fibrou...
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WO/2009/012566A1 |
A contaminate separation apparatus for use in separating contaminant materials from cellulose and/or paper fibres in a paper recycling process includes a reservoir for receiving a waste paper slurry therein. The reservoir is provided wit...
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WO/2009/013391A1 |
The invention relates to a separation pump (1) for pumping a fluid mixture (2) of gas (3) and liquid or suspension (4) and for separating gas (3) and liquid or suspension (4) from each other. The separation pump (1) comprising a rotatabl...
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WO/2009/000348A1 |
The method is used to process waste paper (M) in order to allow the production therefrom of cardboard or of packaging papers. The pulp suspension (S) formed by dissolving is divided by fractionation (3) into a short-fiber fraction (F1) a...
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WO/2008/153565A1 |
The present disclosure relates to producing paper or paperboard having improved stiffness and strength, compared to the conventional paperboard at the same basis weight. It also discloses a method of wood pulping having a significantly i...
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WO/2008/154073A1 |
A method of wood pulping having a significantly increased yield is disclosed. Wood chips are chemically pulped to a high kappa number, providing a first accepts component and a first rejects component. The first rejects component is subj...
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WO/2008/145821A1 |
A method for the processing of pulp to be used in the manufacture of paper or cardboard, in which method the pulp is led from a pulp source to pulp processing and further into the circulation and the headbox of a paper or cardboard machi...
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WO/2008/134885A1 |
A system and method for optimizing a process for refining lignocellulosic granular matter such as wood chips use a predictive model including a simulation model based on relations involving a plurality of matter properties characterizing...
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WO/2008/131974A1 |
The method serves for the production of a screen (1) as it is used, for example, for the sorting of fibrous material suspensions suitable for the production of paper. It comprises at least two screen layers (2, 3, 4) that are equipped wi...
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