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Patent Searching and Data


Matches 501 - 550 out of 3,653

Document Document Title
WO/2004/003289A1
The invention provides a process for producing mechanical pulp from vegetative matter. The process comprises using high pressure fluid jets to break apart the vegetative matter into small particles and to further reduce the size of the p...  
WO2002057542A8
The invention relates to an apparatus for passing stock to a headbox (100) of a paper machine or equivalent. The apparatus comprises a deaeration tank (11) which is provided with vacuum by means of a vacuum pump (P0) or another device. T...  
WO/2003/104549A1
A screening apparatus for screening pulp suspensions comprises a screen basket (8) dividing the interior of the housing into a central chamber (10) and a single outer annular chamber. The suspension is supplied to one of the outer and ce...  
WO/2003/104548A1
The invention relates to a fractionation apparatus and a method in fractionation of stock in the short circulation of a paper machine or equivalent. The fractionation apparatus comprises a fractionation screen (21) in connection with a c...  
WO/2003/102297A1
A filtering basket (1) for the filtering of fibres in aqueous suspensions disclosed, comprising: two or more coaxial annular elements (2) mutually spaced out according to a longitudinal axis (X); a plurality of tie rods (3) fit to mutual...  
WO/2003/099447A1
A hydrocyclone (2) for separating a fibre suspension into a heavy fraction substantially containing heavy contaminants and a light fibre fraction substantially containing fibres comprises an elongated separation chamber (6) with two oppo...  
WO/2003/091496A1
The invention relates to a bar screen device (1, 1', 1''), especially for treating fibrous suspensions in the paper industry. Said device comprises a plurality of bars (2, 2', 2', 2' ) which are fixed to at least one reinforcing element ...  
WO/2003/090931A1
A special shape of bars on refining discs or plate segments (54) of a rotating disc refiner (10) is disclosed including a plurality of bars (76) generally extending outwards toward the outer end of the disk across its surface, arranged i...  
WO/2003/090894A1
The invention relates to a method and a device for the separation of dense materials from sludges. A reception container in which a previously prepared suspension comprising dense material is spatially separated from a suspension flow wi...  
WO/2003/091497A1
A screen section, a cylindrical screen basket, a screening device, and a method for treating comminuted cellulosic fibrous material to provide improved fractionation or debris removal and improved efficiency of operation. The screen sect...  
WO/2003/089715A1
The invention relates to a method for controlling the water jet sharpening sequence of a pulp grinder (1), in which method a high-pressure water sharpening jet (18) is directed to the surface of a pulpstone (3) with a water sharpening ap...  
WO/2003/085192A2
The present invention provides a process for improving smoothness of a web surface by subjecting the web surface to an untreated smooth roll traveling at a different speed than the web and thereby producing heat generated by friction to ...  
WO/2003/082470A1
The inventions relates to a method for measuring stress forces in refiners having refining discs that between them define a refining gap for refining material between bars (3) arranged on the refining discs. The measuring is performed ov...  
WO/2003/082471A1
The invention relates to a method for measuring stress forces in refiners having refining discs that between them define a refining gap for refining material between bars (3) arranged on the refining discs. The measuring is performed ove...  
WO/2003/080923A1
The invention relates to a method for defibring recycled fibre material in a drum pulper (1) provided with a substantially horizontal drum (2). Recycled fibre material and water are fed to the drum pulper (1) and the drum (2) of the drum...  
WO/2003/044250A1
The present invention is directed to a process for producing micropulp. The process includes contacting organic fibers with a medium comprising a liquid component and a solid component, agitating the medium and the organic fibers to tran...  
WO/2003/033152A1
The present invention relates to extraction bedplates (10), (110), (210), (310), (410), (510), (610) for use in apparatus (5) for defiberizing paper making stock and methods for making such bedplates. Preferred methods for making such be...  
WO2003018906A3
An equipment (1; 40) for preparation of paper stock is disclosed comprising : a kneader (2) having a rotary cylinder (2a) with horizontal axis (X) adapted to treat waste paper in an aqueous environment to obtain the paper stock; a collec...  
WO/2003/031717A1
The invention relates to a method of separating colouring agents, particularly printing ink, from recycled fibre material, in which method the recycled fibre material is defibered using a liquid, so that colouring agent is separated from...  
WO/2003/028846A1
The invention relates to a slotted-hole sieve arrangement which is especially used for treating fibre suspensions in the paper industry. One such slotted-hole sieve arrangement, which can be embodied in the form of a perforated plate or ...  
WO/2003/027385A1
A screen basket for screening suspensions, containing wearing particles, comprises a circumferential wall of a base material provided with screen passages, and a wear resistant outer layer of a material, typically chromium, which is hard...  
WO/2003/027607A1
A transducer (10) for distance measurement, especially between a stator and a rotor in a refiner for paper pulp production, in which the transducer is of the magnetic type and has a tubular casing (17), the one end of which forms a measu...  
WO2002040766A3
A method of recycling bonded fibrous materials, the method includes the steps of: providing pieces of bonded fibrous materials, the pieces having sizes that are adapted for suspension in a liquid; suspending the discrete pieces of bonded...  
WO/2003/023135A1
The invention relates to a deaeration arrangement in connection with a paper machine or equivalent. The apparatus arrangement comprises a deaeration tank (10) which has a vacuum and between which deaeration tank (10) and a wire pit (12) ...  
WO2002072310A3
This invention relates to a method of diagnosing or controlling a grinding mill for paper pulp, wood chips, or other fibrous materials, by measuring the incremental change in power related to an incremental change in the gap, and using t...  
WO/2003/018200A1
The present invention relates to a method and a device for measuring stress forces in refiners having refining discs that define a refining gap between them for refining material between bars (3) arranged on the refining discs. In accord...  
WO2001067044A9
A refiner disk sensor (78) and sensor refiner disk (58) for use in sensing or measuring a parameter in a refining zone of a refiner (30). The sensor includes a spacer (114) that isolates a sensing element. In one embodiment, the spacer i...  
WO/2003/018906A2
An equipment (1; 40) for preparation of paper stock is disclosed comprising : a kneader (2) having a rotary cylinder (2a) with horizontal axis (X) adapted to treat waste paper in an aqueous environment to obtain the paper stock; a collec...  
WO/2003/015924A1
A pair of co-acting refining elements (10, 11) intended for a refiner for processing ligno-cellulosic fibrous material in a refining gap between two opposed refining discs rotating relative to one another. The refining elements (10, 11) ...  
WO/2003/016617A1
The invention relates to a headbox of a paper machine or equivalent. The headbox comprises in its connection cleaning tubes (11a¿1?, 11a¿2?...), by means of which stock is separated into accept and reject, the accept being passed forwa...  
WO/2003/014572A1
A centrifugal pump for pumping a pulp suspension while simultaneously conducting gas away from the suspension, comprising a pump housing (10) with an inlet (11) and an outlet (12) for the pulp suspension and an impeller (14) mounted on a...  
WO/2003/008667A1
A hard-chromed element, in particular a sieve basket, comprises a base body (1) made from a base material, whereby a surface of the base body (1) is provided with a first hard-chrome layer (3). An indicator layer (2), visually different ...  
WO/2003/004167A1
A system and method for monitoring and control operation of a rotary disk refiner (32a). A characteristic of the stock such as temperature is monitored by a sensor (70) to a parameter, such as dilution water, feed screw speed and/or refi...  
WO2002034357A8
The invention relates to a slotted screen device (1;1',1") which is essentially made up of form-fit connections and which can be used e.g., for treating fibre suspensions in the paper industry. The inventive slotted screen device (1;1',1...  
WO2002083578A3
A method to remove scale build-up in a vessel having at least one screen is described and involves placing a cover inside the vessel such that it is located beneath at least one screen to separate the screen from the rest of the vessel. ...  
WO/2003/000982A1
There is a need for a cheaper method of producing bleached TMP and CTMP without impairing the properties of the pulp. This is made possible by the present invention, which relates to a method of producing said pulps in which finely divid...  
WO/2002/100547A1
A refiner plate pattern (70) that is adjustable for casting a rotary disk refiner plate (32) therefrom. The refiner plate pattern has a portion (34) of its refining surface (84) that is adjustable relative to some other part. In one pref...  
WO/2002/097190A1
A tubular screen for screening of pulp suspensions comprises a mantle wall (1), which is provided with screen passages, and external support rings (6), which reinforce the mantle wall so that the latter is resistant to and is not deforme...  
WO/2002/095129A1
The invention relates to coated printing paper which contains mechanical pulp and whose opacity is at least 89%, brightness at least 65% and surface roughness not more than 4.5 $g(m)m. The printing paper contains mechanical pulp at least...  
WO/2002/092906A1
A screening means (4) intended to be located in a screening device for separating a fibrous suspension. The screening means (4) is tubular with a diameter (B) and an effective screening height (A). In order to reduce problems with thicke...  
WO/2002/083578A2
A method to remove scale build-up in a vessel having at least one screen is described and involves placing a cover inside the vessel such that it is located beneath at least one screen to separate the screen from the rest of the vessel. ...  
WO/2002/083263A1
A pulp screen cylinder (64) that includes screen media (66) releasably engaged with a frame (68) at spaced locations opposing movement of the media away form the frame during screening. A preferred frame includes a plurality of spaced en...  
WO/2002/079568A1
The invention relates to a method for preparing fibrous material for producing paper or cardboard. Said method comprises the following steps: a) fibres are prepared in the form of a suspension having a pre-determinable concentration of s...  
WO/2002/075047A1
A device for pumping a pulp suspension and simultaneous abduction of gas from the suspension. The device comprises at least one pulp pump (1) with a housing (2) with inlet (3) and, respectively, outlet (4) for the suspension and an outle...  
WO/2002/072947A1
The invention relates to a method of controlling quality of pulp. Pulp formed in mechanical defibering of wood is screened into at least two fractions, the accept that has passed the screening phase being forwarded for further use and th...  
WO/2002/072310A2
This invention relates to a method of diagnosing or controlling a grinding mill for paper pulp, wood chips, or other fibrous materials, by measuring the incremental change in power related to an incremental change in the gap, and using t...  
WO/2002/064884A1
A rotary filter (1) for fibrous suspensions (S) is disclosed comprising a rotor (2) coaxially arranged inside a filtering basket (4), an annular hollow space (8) being defined between them. In th eannular hollow space (8) there are one o...  
WO/2002/064259A1
A pair of opposed co-operating refining elements (1, 2) intended for a disc refiner for the disintegration and refining of lignocellulosic material in a refining gap between two opposed counter-rotating refining discs. The refining eleme...  
WO2002047822A3
A refiner plate for a rotary disk refiner that is adjustable. The refiner plate has a portion (34) of its refining surface (36) that is adjustable relative to some other part. In one preferred embodiment, the refiner plate has a part (34...  
WO/2002/057542A1
The invention relates to an apparatus for passing stock to a headbox (100) of a paper machine or equivalent. The apparatus comprises a deaeration tank (11) which is provided with vacuum by means of a vacuum pump (P¿0?) or another device...  

Matches 501 - 550 out of 3,653