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WO/2024/096784A1 |
A pulp mill comprising a screening arrangement (2) for screening pulp, a reject handling arrangement (3a-b) connected to the screening arrangement to receive a reject therefrom, the reject handling arrangement being arranged to convey at...
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WO/2024/079026A1 |
The invention relates to a method for operating a screen device (50, 250) for cleaning a fibrous suspension with a rotor (58), arranged in a housing (51, 251) of the screen device (50, 250), and a screen (57), wherein fibrous suspension ...
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WO/2024/079033A1 |
The invention provides a screen (S1-S14), in particular a pressure screen or a pressure screen device which has an inlet (Z) and at least one axially spaced accept (Ak) and reject (R). Screen elements (2) are arranged in the inlet space ...
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WO/2024/068097A1 |
The invention relates to a sensor (1), its use and a method for detecting wear in a component. For this purpose, the vibrations of a feeler (2) are detected by a vibration sensor (5) when the feeler (2) moves along a measuring path (6). ...
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WO/2024/052199A1 |
The invention relates to a device for treating fibrous material with a changing device which can be connected or is connected to a pivoting arm. The rotor can be moved out of the housing by way of the changing device, and maintenance wor...
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WO/2024/043821A1 |
A method for updating a disc refiner by at least partly covering notches (47) of a locknut (45) in the disc refiner and an accessory (51; 51'; 51'') for a disc refiner (100). Said disc refiner comprising a motor and a rotation shaft asse...
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WO/2024/033112A1 |
The invention relates to a separator device (1) comprising a pump (2) with a pump drive (4), a separator unit (6) for separating a medium (M) into a low-viscosity phase (F) and into a high-viscosity phase (A), and a drive motor (8) for d...
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WO/2024/028410A1 |
The present invention provides a fibre processing apparatus for the modification fibrous material. The apparatus includes at least one housing body, which has an inlet and an outlet through which fibrous material may flow along a flow pa...
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WO/2024/013431A1 |
A method for controlling paper making includes monitoring (302) a surface level of a fibrous suspension in a storage, and identifying (303) that the surface level has decreased so that at least one emptying criterion is met and thereafte...
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WO/2024/003496A1 |
The present invention relates to a method for mechanically processing cellulose fibres in aqueous suspension by compression in a mixer (1) comprising a body (10) defining a mixing chamber (11), the wall of which forms a fixed compression...
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WO/2023/232766A1 |
The present invention concerns a method of optimization of the refining energy supplied by a refiner to a fiber composition during a refining operation, the refiner comprising at least two refining disks separated from each other by an a...
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WO/2023/207377A1 |
Disclosed in the present invention is an environment-friendly method for enhancing the mechanical properties of high-bacterial-resistance nano-dialysis paper for medical protection. The method comprises the following steps: a. preparing ...
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WO/2023/209622A1 |
The present invention relates to a modified pulp with a moisture content of less than 15% and a certain content of microfibrils and pre-fibrillated fibres. The modified pulp can, after suspension, be used either directly or be subjected ...
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WO/2023/208708A1 |
The invention relates to a separation cone for a hydrocyclone and to a hydrocyclone. The separation cone has an upper open end for receiving suspension and a lower open end for removing a heavy-part reject. The lower open end has a small...
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WO/2023/199203A1 |
The present invention relates to a highly refined cellulose pulp (HRC) composition for preparation of barrier papers or films, said composition comprising: 50-99 wt% HRC having a Schopper-Riegler number (SR) > 70, as measured according t...
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WO/2023/173212A1 |
There is provided a process of methylating lignin. The process includes providing an alkaline aqueous phase, which includes lignin, in a reactor chamber. The reactor chamber is pressurized with a gas phase including methyl chloride gas. ...
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WO/2023/175320A1 |
An apparatus for recovering separated fibres from a biomass composite material, such as an engineered wood material, is described. The apparatus has a channel configured to receive a slurry comprising water and a biomass composite materi...
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WO/2023/166428A1 |
According to the utility innovation, cut and threshed oil palm EFB are further reduced to fiber strands, with the assistance of a flywheel-assisted hammer-mill used as a fiberiser machine (10).
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WO/2023/135362A1 |
A loading device (10), an arrangement and a method for adjusting a size of a blade gap (9) in processing equipment for processing fibrous material. The loading device comprises a gearing (12) to be coupled in connection with a processing...
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WO/2023/128415A1 |
The present invention relates to: a cigar wrapper which surrounds a smoking product, wherein the cigar wrapper contains at least 50 wt% of cigar leaves, and the smoking product is a heating-type smoking product; a smoking product which i...
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WO/2023/128851A1 |
The present disclosure provides a continuous or semi-continuous process for manufacturing of acid hydrolysed cellulose comprising the steps of: a) providing sheets or a web of cellulose fibres; b) applying oxalic acid and/or citric acid ...
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WO/2023/111803A1 |
The present invention relates to a cellulose-based gas barrier film, said cellulose-based gas barrier film comprising at least 50 wt% of a fines-depleted highly refined cellulose pulp (FD-HRC), wherein said FD-HRC has a Schopper-Riegler ...
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WO/2023/111804A1 |
The present invention relates to a strength enhancement agent for paper and paperboard, said strength enhancement agent comprising a fines-depleted highly refined cellulose pulp (FD-HRC), wherein said FD-HRC has a Schopper-Riegler (SR) n...
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WO/2023/102642A1 |
Disclosed is a refiner filling piece for a refiner having a rotor that rotates about an axis of rotation and cooperates with a stator to mechanically treat a pulp containing cellulosic fibers. The refiner filling piece is mountable to th...
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WO/2023/107579A1 |
An apparatus, system and method for hydraulically adjusting and setting a fixed position of an axially displaceable shaft (220) and rotary chipper disc (210) combination, without requiring an attachment to or obstruction of an end face (...
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WO/2023/099812A1 |
A method for treating textile fibers of different lengths comprises fractionating the fibers in a liquid medium at a predetermined consistency into at least two fractions on the grounds of the fiber length, the two fractions being a firs...
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WO/2023/101832A1 |
A deflaker plate for a deflaker machine may include a substrate and a plurality of teeth extending from the substrate, wherein a specified number of teeth of the plurality of teeth have a serrated face.
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WO/2023/101906A1 |
Conical inlet refiner elements for a mechanical refiner include: a conical stator element disposed between a feedstock inlet to the mechanical refiner and primary refining plates of the mechanical refiner; and a conical rotor element dis...
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WO/2023/099600A1 |
The invention relates to a grinding tool (11) for a refiner (1) for pulping lignocellulose-containing feedstock in cooperation with other grinding tools (13), which lie opposite the grinding tools (11), forming a grinding gap (12). The o...
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WO/2023/084144A1 |
An apparatus (100) and a method (400) for screening a suspension is provided. The apparatus (100) comprises a screen plate (106) with a plurality of screening regions with openings in them. An accept flow of suspension is flowing through...
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WO/2023/062273A1 |
A refining segment (4, 8) for a refiner (1) for refining fibrous material. The refining segment (4, 8) comprises a body (20) comprising a front side (21) and a backside (22), the front side comprising a refining surface (5, 9) and the ba...
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WO/2023/039642A1 |
The invention relates to a method for producing a mouldable cellulosic fibrous material from a cellulose fibre feedstock, the feedstock having a moisture content greater than about 95% (w/w). The method includes the mechanical pre-treatm...
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WO/2023/034427A1 |
A method for additive machining of a refiner plate segment having a feature pattern includes: fabricating the refiner plate segment with a partial feature pattern from a first material; performing optical scanning of the refiner plate se...
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WO/2023/021243A1 |
According to an example aspect of the present invention, there is provided a method comprising: providing wood chips; impregnating the wood chips with an impregnating composition to obtain impregnated wood chips; refining the impregnated...
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WO/2023/021244A1 |
According to an example aspect of the present invention, there is provided a method comprising: providing a pulp composition; screening the pulp composition to obtain an accept fraction and a reject fraction; and dewatering the accept fr...
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WO/2023/285055A1 |
The invention relates to a hydrocyclone assembly (1) for the centrifugal separation of solids from a suspension, comprising at least one first hydrocyclone (2.1) and at least one second hydrocyclone (2.2), and a common inflow chamber (10...
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WO/2023/285216A1 |
The invention relates to a hydrocyclone arrangement (1) for purifying a fibrous material suspension, having an inlet (3) into a first purification stage (101) and an outlet (5) after at least a second purification stage (201), wherein: t...
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WO/2023/285217A1 |
The invention relates to a hydrocyclone assembly (1) for the centrifugal separation of solids from a suspension, comprising at least one first hydrocyclone (2.1) and at least one second hydrocyclone (2.2), and a common outlet (7) for dep...
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WO/2022/263093A1 |
The invention relates to a profiled bar assembly comprising multiple profiled bars, each of which comprises a profiled bar foot and a material feed-side profiled bar head. A fibrous material suspension, as a material feed, passes over th...
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WO/2022/263630A1 |
Enzymatic treatment method and system for fibrous cellulosic material and rigid cellulosic product, wherein the method comprises introduction of raw fibrous cellulosic material (1) in a stirrer (20); enzymatic treatment of the raw fibrou...
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WO/2022/248765A1 |
The invention is an accept tank arrangement for mixing of pulped fiber suspension without causing precipitation or accumulations to the bottom tank. The accept tank has sidewalls (3,4) which have a form of two opposite arched ends (2) an...
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WO/2022/129052A9 |
The invention relates to a method for separating particulates out of filtrates of a paper, cardboard, paperboard or pulp production plant and for reapplying the separated particulates to a surface of paper, cardboard or paperboard, compr...
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WO/2022/238188A1 |
The invention relates to a screen sorting device (1) for cleaning a pulp suspension, comprising a first sorting stage (3) and at least one second sorting stage (5), wherein the first sorting stage has a first accepts outlet (23) and the ...
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WO/2022/235182A1 |
A refiner disc of a refiner (100) for refining of lignocellulosic material, said refiner disc (30) having an active surface (1; 1') comprising a pattern of bars (10) and grooves (20) disposed in a number of pattern areas (41; 41'), where...
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WO/2022/220942A1 |
Refiner plate segments (580,590) for a conical refiner may include a rotor plate segment (510a, 510b) having inlet openings (512a, 512b) disposed at one or more inlet locations on the rotor plate segment, and a stator plate segment (520a...
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WO/2022/220943A1 |
Refiner plate elements for a conical mechanical refiner include: a rotor plate element including at least one rotor plate segment (710a, 710b) having a feedstock inlet opening (712a, 712b) disposed at a first end of the rotor plate segme...
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WO/2022/189957A1 |
The present invention relates to a method for fractionation of a highly refined cellulose pulp into a fine fraction and coarse fraction, said method comprising: a) providing a highly refined cellulose pulp suspension comprising highly re...
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WO/2022/179738A1 |
The invention relates to a filter sector (1) for a filter disk (11) or a disk filter (10), comprising a perforated and structured filter plate (2), and the filter plate (2) can be subjected to suctioning. The invention is characterized i...
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WO/2022/175292A1 |
The invention relates to a wrapping paper for a smoking article, said wrapping paper comprising long-fibre pulp, short-fibre pulp, and inorganic filler, wherein: at least a portion of the long-fibre pulp is ground and the ground long-fib...
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WO/2022/171905A1 |
The invention relates to a system and a method for obtaining fibres (40) from feedstock (20) containing lignocellulose, more particularly from straw, having: a digester (5) for pretreating the feedstock (20) under the effect of heat, pre...
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