WO2015094093A1 - Pulp production arrangement and method - Google Patents
Pulp production arrangement and method Download PDFInfo
- Publication number
- WO2015094093A1 WO2015094093A1 PCT/SE2014/051495 SE2014051495W WO2015094093A1 WO 2015094093 A1 WO2015094093 A1 WO 2015094093A1 SE 2014051495 W SE2014051495 W SE 2014051495W WO 2015094093 A1 WO2015094093 A1 WO 2015094093A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mantle
- support structure
- dewatering
- envelope
- flow paths
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 230000003068 static effect Effects 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 description 20
- 239000007788 liquid Substances 0.000 description 15
- 239000000835 fiber Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000005406 washing Methods 0.000 description 5
- 238000005452 bending Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000003637 basic solution Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/20—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using rotary pressing members, other than worms or screws, e.g. rollers, rings, discs
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/02—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
- D21C9/06—Washing ; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents in filters ; Washing of concentrated pulp, e.g. pulp mats, on filtering surfaces
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/18—De-watering; Elimination of cooking or pulp-treating liquors from the pulp
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/48—Suction apparatus
- D21F1/50—Suction boxes with rolls
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F1/00—Wet end of machines for making continuous webs of paper
- D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water
- D21F1/74—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders
- D21F1/76—Pulp catching, de-watering, or recovering; Re-use of pulp-water using cylinders with suction
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F3/00—Press section of machines for making continuous webs of paper
- D21F3/02—Wet presses
- D21F3/10—Suction rolls, e.g. couch rolls
- D21F3/105—Covers thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
- D21F5/021—Construction of the cylinders
Definitions
- the present document relates in general to fibre dewatering devices in pulp production and in particular to dewatering roll arrangements.
- dewatering of the pulp may be performed from an inlet pulp concentration of 2- 10 % by weight to an output pulp concentration of 20-50 % by weight.
- One type of dewatering device is the twin-roll dewatering device.
- the fibre suspension is brought into contact with the mantle plate of a roll.
- the mantle surface is typically perforated with dewatering channels in a relatively dense pattern.
- Two such rolls are rotated in opposite directions to bring the fibre suspension into a small gap between the rolls.
- the water is thereby pressed out from the suspension through the dewatering channels of the mantle plate and into flow paths within the structures of the rolls.
- the majority of the fibres remain outside the mantle and a pulp with much lower water content exits in the small gap on the other side.
- the dewatered liquid is typically transported axially along the rolls and exits the device in the vicinity of one or both of the roll ends.
- the dewatering efficiency depends to a high degree on the nip between the rolls.
- the gap at the middle parts of the rolls will therefore be somewhat larger than the gap in the vicinity of the ends of the rolls. For short rolls, such bending of the rolls may be small enough to be neglected or at least acceptable.
- a dewatering roll comprises a roll body, a mantle support structure and a mantle.
- the mantle support structure is attached, in a radial direction, around the roll body.
- the mantle is attached, in the radial direction, against an outer surface of the mantle support structure.
- the mantle has a plurality of through holes constituting mantle flow paths from an, in the radial direction, outer surface of the mantle to an, in the radial direction, inner surface of the mantle.
- the mantle support structure presents support flow paths from the outer surface of the mantle support structure. The support flow paths are in fluid contact with the mantle flow paths.
- the outer surface of the mantle support structure has a static geometric shape defining an envelope having a smaller radius in vicinity of each axial end of the mantle support structure than in vicinity of a centre of the mantle support structure. Thereby, the inner surface of the mantle assumes the shape of the envelope.
- a dewatering press comprises at least one dewatering roll according to the first aspect.
- a method for producing a dewatering roll comprises providing of a mantle support structure with support flow paths from an, in a radial direction, outer surface of the mantle support structure.
- the mantle support structure is attached around a roll body.
- a mantle is provided with a plurality of through holes constituting mantle flow paths from an, in the radial direction, outer surface of the mantle to an, in the radial direction, inner surface of the mantle.
- the outer surface of the mantle support structure is formed to obtain a static geometric shape defining an envelope having a smaller radius in vicinity of each axial end of the mantle support structure than in vicinity of a centre of the mantle support structure.
- the mantle is fitted against the outer surface of the mantle support structure.
- the support flow paths are thereby brought in fluid contact with the mantle flow paths.
- the forming of the outer surface of the mantle support structure is performed before fitting the mantle against the outer surface of the mantle support structure.
- FIG. 1 is a schematic illustration of a twin roll press operation principle
- FIG. 2 is a schematic view of a part of an enlarged cross-sectional view of a dewatering roll
- FIG. 3 is a schematic illustration of forces on dewatering rolls
- FIG. 4 is a schematic illustration of forces on dewatering rolls in a cross-sectional view
- FIG. 5 is an illustration of dewatering rolls of an embodiment of a dewatering press
- FIG. 6 is a schematic illustration of an embodiment of an envelope of an outer surface of a mantel support structure
- FIG. 7 is a schematic illustration of an embodiment of a mantel support structure having linearly varying radiuses
- FIG. 8 is a schematic illustration of another embodiment of a mantel support structure having linearly varying radiuses.
- FIG. 9 is a flow diagram of steps of an embodiment of a method for manufacturing a dewatering roll.
- Fig. 1 illustrates schematically a twin-roll press 1.
- the twin-roll press 1 comprises two dewatering rolls 10.
- Each dewatering roll 10 has a mantle 40, which is perforated by holes in a radial direction.
- the dewatering rolls 10 are rotating in opposite directions, indicated by the arrows r.
- Fibre suspension 3, e.g. pulp suspension, is entered by a suspension inlet 2 into an enclosing volume 1 1 provided around, in a tangential direction, at least a part of the respective dewatering roll 10.
- the enclosing volumes 1 1 of the two dewatering rolls 10 are merging close to a nip section 6 between the dewatering rolls 10.
- the dewatering rolls are positioned at a predetermined distance from each other, leaving a gap within the nip section 6.
- the suspension 3 entered into the enclosing volume 1 1 is transported by the rotation of the dewatering rolls 10 along in the rotation. Most of the free liquids of the suspension 3 entered into the enclosing volume 1 1 can during this transportation pass through, indicated by arrows 7, the holes of the mantle 40, due to the vat pressure used when entering the suspension 3.
- the suspension 3 reaches the nip section 6 the volumes is reduced and the suspension will be exposed for a load, pressing the suspension towards the mantles 40 of the dewatering rolls 10.
- the dewatering rolls are pushed towards each other with a force F. This pressing squeezes the filtrate out of the fibre suspension. A large portion of the remaining liquids in the suspension is thereby forced through the holes of the mantle 40.
- a washing liquid 5 can be introduced through a wash liquid inlet 4 into the enclosing volume 1 1 for displacing "dirty" liquids from the suspension. Note, however, that this washing step is optional.
- Fig. 2 illustrates a part of a dewatering roll 10 in a cross-sectional view.
- the mantle 40 has a large number of through holes 42 constituting mantle flow paths 44 for liquids passing 7 through the mantle 40 from an outer surface 46 into the interior of the dewatering roll 10.
- the mantle 40 is supported by a mantle support structure 30, in this embodiment comprising ring elements 34 attached on support ribs 32 provided in an axial direction.
- the mantle 40 is fitted with an inner surface 48 against an outer surface 36 of the mantle support structure 30.
- the mantle support structure 30 is in turn attached to a roll body 20.
- the liquids resulting from the dewatering process are thus provided into the interior of the dewatering roll 10 inside the mantle 40.
- the mantle 40 is relatively thin in order to provide low flow resistance through the mantle flow paths 44.
- the liquids exit the mantle flow paths 44 they enter into support flow paths 38 provided by the geometrical structure of the mantle support structure 30.
- the support flow paths 38 are thus in fluid contact with the mantle flow paths 44.
- the support flow paths could be provided in other ways.
- the support flow paths 38 could in one alternative e.g. have an axial flow direction in the volumes that are in direct contact with the mantle flow paths.
- the support How paths 38 could have a substantially radial flow direction, delivering the liquids from the mantle inwards towards the axis of the roll body.
- the roll body could then be arranged for receiving the dewatering liquids, e.g. by channels through the roll body surface, and remove the dewatering liquids from the system, e.g. through a hollow roll body.
- Fig. 3 illustrates schematically a twin-roll press 1, in which two dewatering rolls 10 are pressed together by forces F.
- the fibre suspension in the nip section 6 applies a load, illustrates by the arrows 12 onto the dewatering rolls 10 in a direction out from the nip section 6 perpendicular to the direction of the axes of the dewatering rolls 10.
- the load 12 causes the dewatering rolls 10 to bend, which is illustrated (extremely exaggerated) by the dotted line 13.
- the bending is largest in the middle part 16 of the dewatering rolls 10, in an axial direction A.
- the deflection of the dewatering rolls 10 also influences the local load on the dewatering rolls 10. It has been found in experiments that the local load close to the ends 15 of the dewatering rolls 10 increases whereas the local load in the middle 16 of the dewatering rolls 10 decreases. Since the relationship between actual gap size and local load is highly nonlinear, the load close to the ends 15 of the dewatering rolls 10 may increase considerably, thereby increasing the risk for overloading the mantle.
- FIG. 4 schematically illustrates a twin-roll press 1, in which two dewatering rolls 10 are pressed together by forces F.
- the load 12 in the nip section 6 causes the dewatering rolls 10 to deform their cross-sections, illustrated in an extremely exaggerated way by the dotted line 14.
- a straight-forward approach in e.g. paper machines to solve analogous problems is to machine the outer surface of the rolls to assume a slightly differing radius along the axis of the roll.
- the mantle is perforated to provide mantle flow paths.
- the aspect ratio of the hole length to hole diameter has to be kept as low as possible. It is therefore advantageous to have a thin mantle plate.
- a typical thickness is around 3 mm.
- deflections caused by the load can be in the order of several millimetres.
- a machining of the mantle plate thereby becomes impossible.
- using a thick mantle plate that would allow machining depths of a couple of millimetres will instead give rise to mantle flow paths with too high flow resistance.
- the basic solution according to the present invention is based on the idea of leaving the mantle thickness essentially unmodified, but instead provide a static mantle support structure that has the required deflection measures.
- Fig. 5 illustrates one embodiment of a dewatering press, in this embodiment a twin roll press 1 with two dewatering rolls 10.
- Each of the dewatering rolls comprises a roll body 20, a mantle support structure 30 and a mantle 40.
- the mantle support structure 30 is attached, in a radial direction R, around the roll body 20.
- the mantle 40 is attached, in the radial direction R, against an outer surface 36 of the mantle support structure 30.
- the mantle 40 has a plurality of through holes 42 constituting mantle flow paths 44 from an, in the radial direction R, outer surface 46 of the mantle 40 to an, in the radial direction R, inner surface 48 of the mantle 40.
- the mantle support structure 30 presents support flow paths 38 from the outer surface 36 of the mantle support structure 30.
- the support flow paths 38 are in fluid contact with the mantle flow paths 44.
- the structure of the mantle support structure 30 should be as open as possible without any unnecessary disturbing parts.
- the open structure preferably provides flow paths of low flow resistance.
- the contact area between the mantle support structure 30 and the mantle 40 has to be kept relatively small, in order to allow the connection of the support flow paths 38 and the mantle flow paths 44. In a typical case, the contact surface is less than 1 /3 of the mantle surface.
- the actual contact surface pattern can be designed in different ways.
- the contact is provided in circular paths around the roll body 20.
- contacts directed in an axial direction or as helical structures can also be used.
- contact patterns of mesh types are feasible.
- the actual pattern of the contact surface is, however, not influencing the basic technical effect of the here presented technology as long as a good connection of the support flow paths 38 and the mantle flow paths 44 is provided.
- mantle flow paths 44 can in different embodiments also be designed in different ways.
- Non-exclusive example can e.g. be different types of slits or holes with circular or non-circular cross-sections.
- the outer surface 36 of the mantle support structure 30 has a static geometric shape defining an envelope having a smaller radius in vicinity of each axial end 15 of the mantle support structure 30 than in vicinity of a centre 16 of the mantle support structure 30.
- the inner surface 48 of the mantle assumes the shape of that envelope.
- the mantle has an essentially uniform thickness in the radial direction.
- Fig. 6 illustrates schematically an embodiment of a dewatering roll 10 with the mantle removed.
- the mantle support structure 30 has an outer surface 36 with a geometric shape.
- This geometric shape defines an envelope 39 connecting the outer surface 36 parts.
- This envelope 39 thus corresponds to the shape the mantle assumes when being fitted onto the mantle support structure 30.
- the envelope 39 has a smaller radius in vicinity of each axial end 15 of the mantle support structure 30 than in vicinity of a centre 16 of the mantle support structure 30. Note, that this changing radius is extremely exaggerated in Fig. 6, in order to be visualized.
- the difference is typically in the order of a fraction of a millimeter up to a couple of millimeters, whereas the dewatering roll 10 length typically is from 0.5 m up to more than 10 m.
- a radius of the envelope 39 is changing monotonously from the centre 16 of the mantle support structure 30 towards each of the axial ends 15 of the mantle support structure 30.
- the envelope 39 is thus preferably given a shape that compensates for deflection and deformation of the dewatering roll 10 at a pre-defined operation load. When being in operation, the changing radius and the deflection and deformation will ideally cancel each other and a more or less constant gap is provided in the nip section.
- the radius of the envelope 39 is not changing monotonously all the way from the centre 16.
- the radius of the envelope 39 is changing monotonously over a major part of the distance from the centre 16 of the mantle support structure 30 towards each of the axial ends 15 of the mantle support structure 30.
- the dewatering press is a twin roll press 1, where both the dewatering rolls 10 are provided with the changing radius according to Fig. 6.
- one of the dewatering rolls could be manufactured according to prior-art as a straight roll, whereas the other dewatering roll could be given a changing radius compensating for the deflection and deformation of both dewatering rolls. This will give rise to a nip section that is slightly bent between the dewatering rolls, but any disadvantages of having such a bent nip section are expected to be very small. In such a way, the deflection compensation only has to be performed on one of the dewatering rolls, thereby saving production time and complexity.
- a dewatering press may also be designed only having one dewatering roll.
- the counteracting surface can be a non-dewatering roll or more or less any relatively flat surface.
- the same principles about deflection compensation of the dewatering roll can, however, by advantage also be used in such dewatering presses.
- This acceptable deviance from a perfectly compensated deflection also opens up for different shapes of the envelope.
- the envelope shape can thereby be modified from the ideal deflection compensation shape without causing any significant disadvantages.
- the resulting gap of a twin-roll arrangement varies less than 0.2 mm, almost no reduction in dewatering efficiency can be detected. If the resulting gap varies less than 1 mm, the effect on the dewatering efficiency is still small, however, noticeable. Also resulting gap varying less than 2 mm could be used, at least if the absolute measure of the gap is relatively wide.
- the radius of the envelope is manufactured to vary piecewise linearly in the axial direction.
- FIG. 7 an envelope 39 of a mantle support structure is schematically depicted.
- the radius of the envelope 39 decreases piecewise linearly in the axial direction A from the centre 16 of the mantle support structure towards each of the axial ends 15 of the mantle support structure.
- the envelope consists of linearly varying sections 51 , connected to each other at the ends thereof.
- an envelope 39 of a mantle support structure of another embodiment is schematically depicted.
- the radius of the envelope is manufactured to be piecewise linearly in the axial direction.
- the radius of the envelope 39 is piecewise constant in the axial direction A.
- the envelope consists of sections 52 having a constant radius. The sections 52 are connected to each other at the ends thereof, thereby creating a step in the radius. By selecting the widths and step sizes of these sections 52 in a suitable manner, the difference in radius compared to an ideal deflection compensating curve 50 can anyway be kept very small. Note that the illustrated changes in radius are extremely exaggerated.
- Fig. 9 illustrated a flow diagram of steps of an embodiment of a method for producing a dewatering roll.
- the procedure starts in step 200.
- a mantle support structure is provided with support flow paths from an, in a radial direction, outer surface of the mantle support structure.
- the mantle support structure is attached around a roll body.
- a mantle is provided with a plurality of through holes. The through holes constitute mantle flow paths from an, in the radial direction, outer surface of the mantle to an, in the radial direction, inner surface of the mantle.
- step 216 the outer surface of the mantle support structure is formed to obtain a static geometric shape defining an envelope having a smaller radius in vicinity of each axial end of the mantle support structure than in vicinity of a centre of the mantle support structure.
- step 218, occurring after step 216 the mantle is fitted against the outer surface of the mantle support structure. The support flow paths are thus brought in fluid contact with the mantle flow paths. The procedure ends in step 299.
- the step of fitting 218 the mantle against the outer surface of the mantle support structure is performed by shrink-fitting.
- the mantle is typically provided with an inner radius that is somewhat smaller than the smallest radius of the portion of the mantle support structure it is intended to cover.
- the mantle is heated, whereby it expands. During this elevated temperature, the mantle is fitted around the mantle support structure and is then allowed to cool down.
- the mantle will be shrink-fitted onto the mantle support structure. This means that the inner surface of the mantle assumes the shape of the envelope as a result of the shrink-fitting.
- the mantle is fitted onto the mantle support structure in sections, whereby the original radius of the mantle is adapted to the respective mantle support structure section. If the changes in radius within such a mantle support structure section is moderate, the mantle can be originally provided before the shrink-fitting with a constant radius, whereby the shrink-fitting will cause the mantle to assume a shape similar to the envelope.
- the step of providing a mantle then comprises shaping the mantle to by its inner surface assume the shape of the envelope.
- the mantle can then be stuck onto the mantle support structure and attached by any appropriate means.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480068496.4A CN105829603B (en) | 2013-12-19 | 2014-12-15 | Pulp production is arranged and method |
CA2928826A CA2928826A1 (en) | 2013-12-19 | 2014-12-15 | Pulp production arrangement and method |
US15/102,021 US10227728B2 (en) | 2013-12-19 | 2014-12-15 | Pulp production arrangement and method |
EP14871933.9A EP3084071B1 (en) | 2013-12-19 | 2014-12-15 | Pulp production arrangement and method |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1351529A SE538068C2 (en) | 2013-12-19 | 2013-12-19 | Arrangement and procedure for mass production |
SE1351529-1 | 2013-12-19 |
Publications (1)
Publication Number | Publication Date |
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WO2015094093A1 true WO2015094093A1 (en) | 2015-06-25 |
Family
ID=53403245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/SE2014/051495 WO2015094093A1 (en) | 2013-12-19 | 2014-12-15 | Pulp production arrangement and method |
Country Status (6)
Country | Link |
---|---|
US (1) | US10227728B2 (en) |
EP (1) | EP3084071B1 (en) |
CN (1) | CN105829603B (en) |
CA (1) | CA2928826A1 (en) |
SE (1) | SE538068C2 (en) |
WO (1) | WO2015094093A1 (en) |
Families Citing this family (2)
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US11202451B2 (en) * | 2018-05-26 | 2021-12-21 | Oganes MELKONYAN | Culinary device |
CN109487611B (en) * | 2018-12-28 | 2021-03-05 | 四川凤生纸业科技股份有限公司 | High-efficient paper pulp filter-pressing dewatering equipment |
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CN2500704Y (en) * | 2001-09-12 | 2002-07-17 | 章丘市造纸机械辅机厂 | Double-roll displacing pressing pulp washer |
US7285180B2 (en) * | 2004-04-19 | 2007-10-23 | Gl&V Management Hungary Kft. | Perforated deck made out of a plurality of segments |
FI20041518A (en) | 2004-11-25 | 2006-05-26 | Andritz Oy | Method and apparatus for treating mesa |
SE528867C2 (en) * | 2005-07-04 | 2007-03-06 | Metso Paper Inc | Roll body for press roll and roll press comprising two press rolls |
SE530578C2 (en) | 2006-11-23 | 2008-07-08 | Metso Paper Inc | Press roll for washing and / or dewatering of pulp and method for manufacturing or repairing such press roll |
SE531844E (en) * | 2007-12-13 | 2013-02-14 | Metso Paper Inc | Apparatus for washing and dewatering of pulp |
SE0802028A2 (en) * | 2008-09-24 | 2010-07-20 | Metso Paper Inc | Apparatus for washing and / or dewatering pulp |
SE0802029A2 (en) * | 2008-09-24 | 2010-07-20 | Metso Paper Inc | Apparatus for washing and / or dewatering pulp |
US8187125B2 (en) | 2009-04-14 | 2012-05-29 | Alexander Kaufman | Tennis throw trainer |
-
2013
- 2013-12-19 SE SE1351529A patent/SE538068C2/en not_active IP Right Cessation
-
2014
- 2014-12-15 CA CA2928826A patent/CA2928826A1/en not_active Abandoned
- 2014-12-15 WO PCT/SE2014/051495 patent/WO2015094093A1/en active Application Filing
- 2014-12-15 US US15/102,021 patent/US10227728B2/en active Active
- 2014-12-15 CN CN201480068496.4A patent/CN105829603B/en active Active
- 2014-12-15 EP EP14871933.9A patent/EP3084071B1/en active Active
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US4683744A (en) * | 1985-06-18 | 1987-08-04 | Wean United Rolling Mills, Inc. | Flexible edge roll |
WO1987006282A1 (en) * | 1986-04-08 | 1987-10-22 | Sunds Defibrator Aktiebolag | Dewatering press |
WO1996036817A1 (en) * | 1995-05-18 | 1996-11-21 | Valmet Corporation | System of oil feed ducts for a variable-crown roll |
WO2004101266A2 (en) * | 2003-05-15 | 2004-11-25 | Fabio Perini S.P.A. | Variable crown roller for devices for processing continuous web material and device comprising said roller |
US20110233130A1 (en) * | 2008-12-19 | 2011-09-29 | Metso Paper, Inc. | Method and arrangement for fixing an endless wire |
Also Published As
Publication number | Publication date |
---|---|
EP3084071A1 (en) | 2016-10-26 |
US10227728B2 (en) | 2019-03-12 |
CA2928826A1 (en) | 2015-06-25 |
SE538068C2 (en) | 2016-02-23 |
CN105829603B (en) | 2018-09-28 |
CN105829603A (en) | 2016-08-03 |
US20160305067A1 (en) | 2016-10-20 |
EP3084071A4 (en) | 2017-08-02 |
SE1351529A1 (en) | 2015-06-20 |
EP3084071B1 (en) | 2018-08-08 |
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