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Patent Searching and Data


Matches 651 - 700 out of 3,658

Document Document Title
WO/2000/027531A1
A refiner for refining material has a refiner disc arrangement whereby the outermost opposed refiner disc annuli (12, 14) have a particular corresponding refiner surface arrangement. A carrier element (30) has a mounting surface, a centr...  
WO/2000/025889A1
The resistance of a screen, particularly a wedge wire screen, construction to destructive twisting moments, which cause breakage of the resistance welds between the screening wires or bars and the support bars, is effected by providing a...  
WO/2000/022228A1
A screen, such as a drum screen or a flat screen, for screening or fractionizing pulp suspensions or the like suspensions of the pulp and paper industry. The screen comprises a reinforcement attached to the surface of the screen plate, s...  
WO/2000/021677A1
A method and apparatus (10) for decontaminating a liquid suspension comprising a decontaminating cell (12). The decontaminating cell (12) as shown in the Figure has an upper light contaminate collection hood (30) and/or a lower heavy con...  
WO/2000/020091A1
A wedge wire for use in a wire type screen for screening papermaker's stock is formed with an elongated body (12) having an enlarged head (20) at the inlet surface of the screen. The head (20) is formed with tapered walls (30, 33) that c...  
WO/2000/019005A1
A method of making sanitary paper products from coarse fibers. The method includes the steps of: (a) pulping coarse fibers in water with agitation to produce a pulp slurry, the pulp from the coarse fibers having an average fines content ...  
WO/2000/015901A1
The invention relates to a sieving device (1) in which a sieving element (2) is connected to a reinforcing element (4) by means of a frictionally engaging clamping action connection (11) while maintaining a radial distance using spacers ...  
WO/2000/015900A1
A method and an apparatus for washing a fibre pulp mixture, whereby water and, with it, ash and other particle-type impurities are removed from the fibre pulp mixture. In the method, the fibre pulp being washed is fed between two wires s...  
WO/2000/012811A1
A method of separating a fiber fraction by screening from a liquid containing fibers and small particles, where the separation takes place in that the ingoing liquid is allowed to flow along a screen member with screen apertures from an ...  
WO/2000/010710A1
A refiner plate for the face of a refiner disc comprising a plurality of refiner segments (10) arranged side-by-side on the face of the disc to form a substantially annular refining region. Each refiner segment has a plurality bars (40) ...  
WO/2000/011265A1
The present invention relates to a method and apparatus for pretreating paper pulp. The method and apparatus according to the invention are especially preferably applicable to be used in the paper machine approach system of paper machine...  
WO/2000/011264A1
A refiner plate for the face of a refiner disc comprising a plurality of refiner segments (10) arranged side-by-side on the face of the disc to form a substantially annular refining region. Each refiner segment has a plurality bars (32, ...  
WO/2000/009288A1
Replaceable refiner fillings (10) used for refining of lignocellulosic and other natural and synthetic fibrous materials in the manufacture of paper, paperboard, and other fiberboard products. The refiner fillings (10) include a pattern ...  
WO/2000/006302A1
A rotary disc refiner includes a pair of spaced apart refiner discs (11, 12) for refining or grinding a material that typically is fibrous material such as wood pulp or the like. Pressurized vapor, typically steam, produced as a result o...  
WO/2000/004232A1
A plant which serves to produce a nonwoven web of fibres (20) out of a fibrous material, such as cellulose pulp (6). The plant comprises a hammer mill (1) for defibrating the fibrous material and a forming head (2) for forming a web of f...  
WO/2000/001217A1
A transportable floral holder in the nature of a wettable floral foam mass (16) received within a water impervious shell, or sheath (14). The floral foam mass (16) serves as a reservoir as well as a coupling device. The shell (12) not on...  
WO1999054045A8
The object of the invention is a method for processing pulp stock derived from a pulp or paper mill, which pulp stock contains fibres and/or any other components, such as mineral components, in order to disperse the agglomerations in the...  
WO/1999/064664A1
A screen cylinder, and a method of making the screen cylinder, take into account the stress concentrations that are formed, particularly at the inner and outer surfaces of the finished screen cylinder, so as to minimize them. The stress ...  
WO/1999/061697A1
A screen media (200) for use in screening pulp slurry has a first side (204) and a second side (206). The pulp slurry is fed from the first side of the screen media to the second side of said screen media through a plurality of screening...  
WO/1999/061696A1
In the mechanical refining of wood chips to produce wood pulp, wood pulp quality is improved by employing low refining intensity at least in a final refining stage; the refining is carried out in a double disc refiner or a single disc re...  
WO/1999/061699A1
The invention relates to a method for flotation of pollutants from an aqueous fibrous material suspension (S), said method being particularly used in the processing of printed or soiled used paper. According to the invention, the fibrous...  
WO/1999/058760A1
The invention relates to a device for sorting (1) a suspension containing fibrous material in which a sorting chamber (3) is constructed in a main housing (2) in combination with a rotationally fixed perforated plate (4) having an essent...  
WO/1999/058991A1
System and method for producing paper are provided. The system controls formation of wet stock comprising fibers on a moving water permeable wire (7) of a de-watering machine that has means for supplying the amount of pulp from at least ...  
WO/1999/054046A1
The invention relates to a refiner disk segment suitable for use in the manufacture of paper or board, the segment comprising a circumferential segment part of a refiner disk surface, the segment part being delineated by an outer edge (1...  
WO/1999/054045A1
The object of the invention is a method for processing pulp stock derived from a pulp or paper mill, which pulp stock contains fibres and/or any other components, such as mineral components, in order to disperse the agglomerations in the...  
WO/1999/053137A1
In a paper-making machine, a method of determining a volumetric percentage of air in a fiber suspension for delivery to a headbox. The fiber suspension is transported through a fluid conduit (22). A sound transmitter (26A) and a target r...  
WO/1999/052197A1
The invention pertains to equipment and methods in which the rotatable drive member of a variable speed motor, such as a switched reluctance motor, carries a rotatable pulp processing element (10). Magnetic bearings (22, 24) levitatingly...  
WO/1999/050019A1
Methods of making a wedgewire pressure screen (10) and pressure screens made thereby. Spacers (14) are integrally formed on wedgewires (12) with the wedgewires grouped side by side in a flat arrangement. The wedgewires (12) are then flex...  
WO/1999/046050A1
A refiner disc (28, 30) for a fiber refiner (20) having a refiner disc removal device (22) that is integral with and retained by the disc (28, 30) during refiner operation. The removal device (22) includes a biasing element (24) that is ...  
WO/1999/046442A1
The present invention relates to a method of reducing the loss of mineral fractions in the treatment of broke in paper production. The invention relates in particular to the treatment of the so-called broke from a paper machine, which is...  
WO1999035331A3
The invention relates to a solid bowl centrifuge (1) for multiphase mixtures, preferably three-phase mixtures, which is especially meant for fibrous material suspensions used in the paper industry. The solid bowl centrifuge (1) has a hou...  
WO/1999/045193A1
A screen device for separating fibre suspensions comprises a screen (40) defining a central chamber (36), and a rotor (15) in the central chamber having a first (21) and a second (27) rotor portion, respectively, provided with first (43)...  
WO/1999/045204A1
A soft, bright and strong tissue paper product and a process for preparing such a tissue paper product is provided. The tissue paper product is prepared from raw cotton linter fibers and demonstrates unexpected medical benefits or advant...  
WO/1999/042223A1
Screen cylinder (10) and method of making same are disclosed wherein the desired inlet (29) and oulet (31) side contours for the screen are formed in respective sides of a precursor metal plate (40) or the like. The contours may comprise...  
WO/1999/040253A1
A pressure screen for separating a liquid mixture, preferably a fibre suspension, containing undesired coarse contaminants comprises a screen housing (1) forming a cylindrical screen chamber (2), and an inlet housing (3) directly connect...  
WO/1999/039046A1
In a pressure screening device for separating undesired particles from a fibre suspension a cylindrical screen (2) is provided. The screen has an outer side and an inner side and is provided with a plurality of projections (19) on the ou...  
WO/1999/039047A1
An apparatus for degassing an aqueous suspension containing pulp fibres, the apparatus comprising an elongated horizontal reservoir (1) and a bypass manifold (2) extending into the reservoir. The bypass manifold (2) is placed inside the ...  
WO/1999/037402A1
Replaceable refiner plates (12) used for papermaking and refining of lignocellulosic and other natural and synthetic fibrous materials in the manufacture of paper, paperboard, and fiberboard products. The refiner plates (12) include blad...  
WO/1999/036612A1
A process and apparatus for the preparation of improved cellulose pulps is provided, in which defibered pulp is screened for removal of shives, and fibers with low bonding ability are removed in hydrocyclones, and rejects from the hydroc...  
WO/1999/035331A2
The invention relates to a solid bowl centrifuge (1) for multiphase mixtures, preferably three-phase mixtures, which is especially meant for fibrous material suspensions used in the paper industry. The solid bowl centrifuge (1) has a hou...  
WO/1999/032712A1
A screening device for fiber suspensions, comprising a casing (1) with a screen means (5) and a rotor (6), provided with pulsation wings (9), located at the screen means (5), whereby a screening zone (7) is formed along the screen means ...  
WO/1999/032711A1
A screening device for fiber suspensions, comprising a casing (1) with a screen means (5) and a rotor (6) with pulsation wings (9) located at the screen means (5), whereby a screening zone (7) is formed along the screen means (5). An inl...  
WO/1999/028549A1
A pressure screen for screening pulp, the pressure screen comprising a housing (1) and a rotor (3) rotatably mounted within the housing, at least two axially successive screen cylinders (7a to 7c), mounted coaxially with the rotor, and f...  
WO/1999/026725A1
A pair of co-operating refining elements (10, 11) intended for a refiner for the working of lignocellulosic fiber material in a refining gap between two opposed refining discs rotating relative to each other. The refining elements (10, 1...  
WO/1999/025456A1
A control system for the vacuum cutt-off valve of a rotating disc or drum filter is provided. The control system includes an actuator that is connected to the vacuum cut-off valve for adjusting the rotation of the vacuum cut-off valve wi...  
WO/1999/026012A1
This invention relates to a pipe attachment, for example to a pulp pump, which attachment consists of a pipe bend (1) and, joined tightly to the latter, a stand pipe (2), wherein the diameter of the stand pipe (2) is greater than that of...  
WO/1999/025918A1
Present invention relates to a storage tower for pulp having an outlet in the bottom part of the tower. The problem is to avoid arching and bridging within the pulp in the storage tower, which arching could cause unstable and disrupted d...  
WO/1999/024143A1
A papermakers' screen basket (20) for pressure screening of papermaking stock or for pressure filtering is formed with a support core (50) formed with honeycomb shaped cells that extend radially in the direction of flow through the scree...  
WO/1999/024662A1
The present invention relates to a method and apparatus for treatment of fiber suspensions in the pulp and paper industry. The invention relates in particular to intensifying the so-called post-screening or secondary screening of bleache...  
WO/1999/024663A1
A screen panel intended to constitute a portion of the jacket surface of a screening cylinder for screening fiber material. The screen panel (1) is formed in one piece of a wear-resistant non-weldable material. It is on one side provided...  

Matches 651 - 700 out of 3,658