EP2488696A2 - Stoffauflauf für eine maschine zur herstellung einer faserstoffbahn, insbesondere einer papier - oder kartonbahn sowie maschine - Google Patents
Stoffauflauf für eine maschine zur herstellung einer faserstoffbahn, insbesondere einer papier - oder kartonbahn sowie maschineInfo
- Publication number
- EP2488696A2 EP2488696A2 EP10720739A EP10720739A EP2488696A2 EP 2488696 A2 EP2488696 A2 EP 2488696A2 EP 10720739 A EP10720739 A EP 10720739A EP 10720739 A EP10720739 A EP 10720739A EP 2488696 A2 EP2488696 A2 EP 2488696A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- headbox
- lower lip
- nozzle
- table top
- nozzle wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- D21F1/02—Head boxes of Fourdrinier machines
- D21F1/028—Details of the nozzle section
-
- 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
- D21F1/02—Head boxes of Fourdrinier machines
Definitions
- the invention relates to a headbox for a machine for producing a fibrous web, in particular a paper or board web, with a central and preferably the support elements of a turbulence generator forming assembly which includes a tabletop underside, and in the machine direction immediately adjacent and in the cross machine direction extending headbox nozzle having at least a lower and an upper, each extending over the machine width continuous nozzle wall.
- Such a headbox is known, for example, from the publications DE 198 45 722 A1 and EP 0 997 578 A1 or EP 1 342 835 A2.
- a lower nozzle wall is slidably mounted on a support part of a base or table top and displaceable relative thereto in the flow longitudinal direction.
- the lower nozzle wall is displaceable in the desired direction via at least one, for example, mechanical, hydraulic and / or pneumatic adjusting device. This adjusting device engages the support part and the lower nozzle wall and the support part extends over a substantial length of the lower nozzle wall.
- the headbox of the second-mentioned document has a headbox nozzle with a lower nozzle wall and an upper nozzle wall.
- the upper nozzle wall is hinged around one in the cross-machine direction extending axis pivotally and the lower nozzle wall, however, is displaceable on a stationary support or table top in the machine direction.
- headboxes shown represent a first headbox type with an open turbulence generator, which is in each case fixedly mounted on the table top, in particular screwed and forms a central assembly, is.
- the turbulence generator forming the central module is designed to be closed, ie it has a closed box turbulence generator.
- a headbox of this type as it is known for example from the document EP 1 653 000 A1, at least one heat chamber through which at least one fluid flows is provided.
- the closed turbulence generator assumes the function of a heat exchanger, which removes the heat from the pulp suspension fed into it and transfers it to the at least one fluid. Through this at least one heat chamber, a different or different rapid heating of the functionally important components of the headbox is compensated.
- the wetted components such as the two machine-width nozzle walls and the turbulence tubes, expand faster than the non-wetted components, such as the cover plate of the turbulence generator and the table top. Due to the rigid connections of the material-contacted and the non-wetted components generally high tensions, in particular bending stresses and large deformations occur on the headbox, and in turn in particular on the headbox.
- the determination of the location and the size of the heating bags depends on the shape of the components used, so that there is a greater variety of variants. And not neglected is the elaborate foundation, as even with a non-working heating system, the then occurring and not insignificant deformation forces must be absorbed.
- a uniform as possible impingement of emerging from the headbox pulp suspension jet on the at least one screen of the wire section should be easily achieved.
- the lower nozzle wall of the headbox comprises a lower lip plate, in particular a lower lip support plate, which with the table top of the central assembly by means of several, in Masch inenlaufraum extending andin M achscherenque rr jug Ribs connected, in particular welded, and that the ribs are formed in the machine transverse direction resilient or pliable.
- connection area between lower lip plate, lower lip support plate of the lower nozzle wall of the headbox nozzle and table top of the central module sufficient soft transmittance is ensured to compensate for the stresses occurring, in particular bending stresses and deformations.
- the redesign of this compensating connection region has structural disadvantages no disadvantages compared to the prior art.
- the flexural rigidity with respect to a possible widening of the headbox nozzle is the same, since the area moment of inertia of the ribs that are yielding and bending soft only in the cross machine direction is not reduced.
- this new design does not need to have explicit and potentially costly cross machine direction stiffening.
- the material of only flexible in the cross-machine direction and pliable soft ribs can be varied. So it may be both a simple structural steel, on the other hand, a stainless steel.
- the individual ribs preferably extend at least partially generally vertically, that is perpendicular to the lower nozzle wall of the headbox nozzle and the table top of the central assembly.
- the individual ribs preferably have a rib thickness in the range from 10 to 75 mm, preferably from 15 to 60 mm, in particular from 20 to 50 mm.
- the stresses, in particular bending stresses in the joints, in particular in the welds are likewise minimized.
- the smallest possible rib thicknesses are desirable, but they are mainly dependent on the machine speed of the machine for producing the fibrous web and therefore directly from the pressure prevailing in the headbox nozzle pressure.
- the individual ribs preferably have a rib pitch in the range of 100 to 500 mm, preferably of 125 to 400 mm, in particular of 150 to 250 mm.
- an enlargement of the rib dart is preferable to a reduction of the rib pitch.
- the combination of 20 mm rib thickness and 200 mm rib pitch is preferable to the combination of 40 mm rib thickness and 400 mm rib pitch.
- the tabletop of the central subassembly in which the lower lip plate, in particular the lower lip support plate of the lower nozzle wall of the fabric Bake nozzle-facing region preferably provided with a chamfer when forming a first slope, wherein the chamfer preferably a chamfer length of at least 25 mm, preferably of at least 40 mm, in particular of at least 50 mm, may have.
- the tabletop of the central module can therefore at its rear and upper end - seen in the machine direction - get a generously dimensioned chamfer.
- the lower lip plate in particular the lower lip support plate of the lower nozzle wall of the headbox is preferably provided in the area facing the table top of the central assembly with a chamfer on formation of a second bevel, the chamfer preferably has a chamfer length of at least 25 mm, preferably of at least 40 mm, in particular of at least 50 mm, may have.
- the lower lip plate, in particular the lower lip support plate of the lower nozzle wall of the headbox at its front and lower ends - seen in the machine direction - get a generously dimensioned chamfer.
- connection between the lower lip plate, in particular the lower lip support plate of the lower nozzle wall of the headbox nozzle and the tabletop of the central assembly can be made flexible and immediate.
- bevels formed by the two bevels preferably enclose an angle of 0 to 45 °, preferably of 5 to 30 °, in particular of 10 to 20 ° with each other.
- the two chamfers can therefore run parallel or divergent to each other. As a result, a simpler insertion of the ribs during the manufacturing process is possible.
- the individual ribs which connect the lower lip plate, in particular the lower lip support plate, of the lower nozzle wall of the headbox nozzle with the table plate of the central module are in the regions of the two chamfers preferably zugt designed to fill in order to obtain the necessary flexural rigidity of the tabletop of the central assembly.
- the table top of the central building peg and the lower lip plate, in particular the lower lip support plate of the lower nozzle wall of the headbox nozzle preferably have a vertical distance in the range from 10 to 100 mm, preferably from 20 to 80 mm, in particular from 25 to 60 mm. in which the vertical distance between the theoretical inside extension of the table top of the central assembly and the theoretical corner edge of the lower lip plate, in particular the lower lip support plate of the lower nozzle wall of the headbox nozzle is measured.
- a certain difference in deformation, in particular by thermal heating can be compensated by this type.
- the individual ribs are also preferably provided in the region facing the end face of the table top, each with a compensation gap, wherein the respective compensation gap a joint height in the range of 2 to 1 5 mm, preferably from 3 to 12 mm, in particular from 5 to 10 mm, having. As a result, among other things, a defined concern of the ribs are ensured on the adjacent components.
- the joints between the tabletop of the central assembly and the individual ribs and / or between the lower lip plate, in particular the lower lip support plate of the headbox lower nozzle wall and the individual ribs preferably have a weld thickness in the range of 3 to 15 mm, preferably 4 to 12 mm, in particular from 5 to 10 mm, on.
- the welds are ideally as To execute fillet welds. As a result, the tensions, in particular bending stresses and thus the deformations in the ribs and in the welds are kept in the permissible range even with larger outlet widths.
- the minimum height of the individual ribs between the tabletop of the central assembly and the lower lip plate, in particular the lower lip support plate of the headbox lower nozzle wall preferably assumes a value in the range of 1, 5 to 4, preferably 2 to 3 times the vertical distance between the table top of the central assembly and the lower lip plate, in particular the lower lip support plate of the lower nozzle wall of the headbox nozzle is located. This in turn can make a significant contribution to maintaining the necessary bending stiffness of the tabletop of the central assembly.
- the individual ribs are preferably each directly or indirectly, in particular connected via at least one hinge connection and a base plate and / or a base to the foundation. This type of connection allows a simple and quick adjustment, in particular pivoting the entire headbox.
- the lower lip support plate of the lower nozzle wall of the headbox nozzle is preferably provided at the top and outlet side with a preferably positionable lower lip. This creates a viable replacement and visibly improves the production of the lower nozzle wall.
- the headbox according to the invention can be used in an excellent manner in a machine for producing a fibrous web from at least one pulp suspension.
- the headbox which is preferably controlled by dilution water, can be designed as a single-layer or multi-layer headbox, and the fibrous web can be a paper, board or tissue web.
- Figure 1 is a schematic and partially sectioned side view of a headbox according to the prior art
- Figure 2 is a schematic and sectional side view of a preferred embodiment of a headbox according to the invention.
- Figure 3 is a schematic front view of the head box of the invention of Figure 2;
- Figure 4 is a schematic partial perspective view of the head box of the invention of Figure 2;
- Figures 5 and 6 are two schematic partial perspective views of a
- Figure 7 is a schematic and sectional side view of the in the
- FIG. 2 only partially illustrated head box according to the invention.
- FIG. 1 shows in a purely schematic representation a headbox 1 known from the prior art for a fourdrinier former of a machine for producing a fibrous web.
- the fibrous web may in particular be a paper, board or tissue web.
- a central subassembly 2 of the known headbox 1 in the present case comprises a lower arm formed by a table top 3, an upper arm preferably at least substantially parallel thereto and formed by a cover plate 4, an upstream first central part 5 and a machine direction L (arrow). further back or downstream second central part 6.
- the cover plate 4 and the two form between These and the table top 3 arranged central parts 5, 6 preferably carrier elements of a turbulence generator. 7
- the formed in the present embodiment as a turbulence generator 7 central assembly 2 is provided with a plurality of stage diffusers or with continuous turbulence tubes.
- the central assembly 2 for example, via a transverse manifold 8 at least one fiber suspension 9 is fed directly.
- the feeding of the at least one pulp suspension 9 can also be effected indirectly, for example via a preferably machine-wide intermediate chamber.
- the known headbox 1 further comprises a in the cross machine direction Q (arrow) over the machine width B (arrow) extending headbox 10 with a lower and an upper, respectively over the machine width B (arrow) extending through the nozzle wall 1 1 and 12.
- the upper nozzle wall 12 is pivotable about a hinge 13 about an axis A (pivot axis) extending in the cross machine direction Q (arrow) (double arrow S).
- axis A pivot axis
- the present case designed as a simple lower lip plate 14 lower nozzle wall 1 1 on the stationary table top 3 in the machine direction L (arrow) displaced (double arrow V).
- the lower lip plate 14 and the lower nozzle wall 1 1 of the headbox 10 form a structural unit.
- the headbox 10 immediately adjoins the central assembly 2 in the machine direction L (arrow).
- the stationary table top 3 for the lower nozzle wall 1 1 or a stationary nozzle wall is supported on a foundation 20 via several separate support elements 19 distributed over the machine width B (arrow).
- the support elements 19 are designed in the cross machine direction Q (arrow) yielding or bend soft.
- the individual support elements 19 extend vertically, that is perpendicular to the lower nozzle wall 12 and the table top 3. In the present case, these support elements 19 are formed by parallel to the machine direction L (arrow) discs. You can, for example, but you rch studs or the like be formed.
- the support elements 19 are connected to the foundation 20 via a base 21, for example consisting of concrete. In principle, however, these support elements 19 can also be connected directly to the foundation 20. At the other end, the support elements 19 are each connected to the table top 3. In the case of a non-displaceable, that is integrally formed with the table top lower nozzle wall, the support elements would be connected to the non-displaceable lower nozzle wall.
- the upper nozzle wall 12, which is pivotable about the axis A via the hinge 13, is connected to a cross member 23 arranged above the axis A via a plurality of separate support elements 22 distributed over the machine width B (arrow). Also, the support members 22 are again in the cross machine direction Q (arrow) yielding or flexible formed.
- One or more lifting elements 24 are hinged on the one hand to the central assembly 2 and on the other hand to the cross member 23 via hinge pins 25 and 26 respectively.
- the upper nozzle wall 12 is thus pivotable about the axis A in the direction of the double arrow S.
- the lifting elements 24 may be threaded spindles, hydraulic cylinders and / or the like, for example.
- a cross member 23 for example, an upright standing sheet or a hollow beam can be provided.
- the known headbox 1 illustrated in FIG. 1 is oriented substantially horizontally, but it may also be directed obliquely upward with its outlet gap 16 into an inlet gap formed between two sieve belts.
- FIG. 2 now shows a schematic and sectional partial side view of a preferred embodiment of a headbox 1 according to the invention.
- the central assembly 2 of the headbox 1 according to the invention in turn comprises a table top 3, a preferably at least substantially parallel cover plate 4, an upstream first central part 5 and in the machine direction L (arrow) further back or downstream second central part 6.
- the lower nozzle wall 1 1 of the headbox 10 comprises a lower lip plate 14, in particular a lower lip support plate 14.1, with the table top 3 of the central assembly 2 by means of several, in the machine direction L (arrow) extending and in the cross-machine direction Q (arrow) spaced ribs 29 connected, in particular welded. Ribs 29 are formed in the cross machine direction Q (arrow) also compliant or pliable.
- the individual ribs 29 extend at least partially generally vertically, that is perpendicular to the lower nozzle wall 1 1 of the headbox 10 and the table top 3 of the central assembly 2 (see Figure 3).
- the table top 3 of the central assembly 2 in which the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 1 1 of the headbox nozzle 10 facing portion 30 is provided with a chamfer 31 when forming a first slope 32, wherein the chamfer 31 preferably has a chamfer length L .31 of at least 25 mm, preferably of at least 40 mm, in particular of at least 50 mm.
- the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 1 1 of the headbox nozzle 10 is provided in the table top 3 of the central assembly 2 facing portion 33 with a chamfer 34 when forming a second slope 35, wherein the chamfer 34 preferably has a chamfer length L. .34 of at least 25 mm, preferably of at least 40 mm, in particular of at least 50 mm.
- the individual ribs 29, which connect the lower lip plate 14, in particular the lower lip support plate 14.1, of the lower nozzle wall 11 of the headbox 10 to the tabletop 3 of the central assembly 2 are designed to fill in the regions of the two bevels 31 and 34, respectively .
- the table top 3 of the central assembly 2 and the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 1 1 of the headbox 10 have a vertical distance C in the range of 10 to 100 mm, preferably from 20 to 80 mm, in particular from 25 to 60 mm , on.
- the vertical distance C is here by definition between the theoretical inside extension 36 of the table top 3 of the central assembly 2 and the theoretical corner edge 37 of the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 1 1 of the headbox 1 0 measured.
- the individual ribs 29 in the end face 38 of the table top 3 facing region 39 are each provided with a compensation gap 40, wherein the respective Ausretesfuge 40 a joint height H.40 in the range of 2 to 1 5 mm, preferably from 3 to 12 mm, in particular from 5 to 10 mm.
- the minimum height H.29 of the individual ribs 29 between the table top 3 of the central assembly 2 and the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 1 1 of the headbox nozzle 10 assumes a value in the range of 1, 5 to 4 , Preferably from 2 to 3 times the vertical distance C between the table top 3 of the central assembly 2 and the lower lip plate 14, in particular the Unterlippentragerplatte 14.1 of the lower nozzle wall 1 1 of the headbox 10 is located.
- the lower lip support plate 14 of the lower nozzle wall 1 1 of the headbox 10 is provided at the top and bottom with a preferably positionable lower lip 43.
- FIG. 3 shows a schematic front view of the head box 1 according to the invention of FIG. 2.
- the individual ribs 29 have a rib thickness D.29 in the range of 10 to 75 mm, preferably from 15 to 60 mm, in particular from 20 to 50 mm, and a Rib parting T.29 in the range of 100 to 500 mm, preferably from 125 to 400 mm, in particular from 150 to 250 mm.
- connections 41 designed as weld seams 42 between the table top 3 of the central assembly 2 and the individual ribs 29 and / or between the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 11 of the headbox nozzle 10 and the individual ribs 29 have one Weld thickness D.42 in the range of 3 to 15 mm, preferably from 4 to 12 mm, in particular from 5 to 10 mm.
- the welds 42 are shown oversized for the sake of clarity only on the central rib 29 shown.
- FIG. 4 shows a schematic perspective partial representation of the head box 1 according to the invention of FIG. 2.
- the central assembly 2 of the headbox 1 comprises a table top 3, a preferably at least substantially parallel cover plate 4, an upstream, but not shown first central part and in the machine direction L (arrow) further back or downstream second central part 6.
- the turbulence generator 7 is provided with a plurality of stage diffusers or stepless turbulence tubes.
- the lower nozzle wall 1 1 of the headbox 10 comprises a lower lip plate 14, in particular a lower lip support plate 14.1, which is connected to the table top 3 of the central assembly 2 by means of several, in the machine direction L (arrow) extending and in the cross machine direction Q (double arrow) spaced ribs 29, in particular welded.
- the ribs 29 are in Cross machine direction Q (double arrow) also designed yielding or bend soft.
- the individual ribs 29 extend at least partially generally vertically, that is perpendicular to the lower nozzle wall 1 1 of the headbox 10 and the table top 3 of the central assembly 2 (see Figure 3).
- the table top 3 of the central assembly 2 is provided in the lower lip plate 14, in particular the lower lip support plate 14. 1 of the lower nozzle wall 1 1 of the headbox nozzle 10 facing region 30 with a chamfer 31 when forming a first slope 32. Also, the lower lip plate 14, in particular the Unterl ippentragerplatte 14.1 of the lower nozzle wall 1 1 of the headbox 10 in which the table top 3 of the central assembly 2 facing region 33 with a chamfer 34 when forming a second slope 35 is provided.
- FIGS. 5 and 6 show two schematic partial perspective views of a rib 29 of the inventive headbox 1 of FIG. 2.
- the respective lower nozzle wall 1 1 of the headbox 10 comprises a separate lower lip plate 14, in particular a separate lower lip support plate 14.1, with the table top 3 of the central assembly 2 by means of several, in the machine direction L (arrow) extending and in the cross-machine direction Q (arrow) spaced ribs 29 connected, in particular welded.
- the ribs 29 are also designed to be yielding or bending soft in the cross machine direction Q (arrow).
- the individual ribs 29 extend at least partially generally vertically, that is perpendicular to the lower nozzle wall 1 1 of the headbox 10 and the table top 3 of the central assembly 2 (see Figure 3).
- the individual ribs 29 have a rib thickness D.29 in the range from 10 to 75 mm, preferably from 15 to 60 mm, in particular from 20 to 50 mm (cf., FIG. 5).
- the individual ribs 29 in the end face 38 of the respective table top 3 facing region 39 are each provided with a compensating joint 40.
- the table top 3 of the respective central subassembly 2 is provided with a chamfer 31 in the formation of a first bevel 32 in the region 30 facing the lower lip plate 14, in particular the lower lip carrier plate 14. 1 of the lower nozzle wall 11 of the headbox nozzle 10. Also, the lower lip plate 14, in particular the lower lip support plate 14.1 of the lower nozzle wall 1 1 of the respective headbox nozzle 10 in the table top 3 of the central assembly 2 facing portion 33 with a chamfer 34 when forming a second slope 35 is provided.
- the respective lower lip support plate 14 of the lower nozzle wall 1 1 of the individual headbox 10 is provided at the top and bottom with a preferably positionable lower lip 43.
- FIG. 7 shows a schematic and sectional side view of the head box 1 according to the invention which is only partially shown in FIG.
- the individual ribs 29 of the head box 1 according to the invention are each connected indirectly to the foundation 20.
- the indirect connection takes place on the inlet side at least by means of a machine-width hinge 44 and a base 21 and on the outlet side by means of a plurality of spaced and merely indicated lifting elements 45.
- the lifting elements 45 may be, for example, threaded spindles, hydraulic cylinders and / or the like.
- the headbox 1 according to the invention is thus adjustable in its position.
- the connection can also be made directly by means of at least one hinge connection and a base plate and / or a base.
- a direct connection of the headbox 1 according to the invention with the foundation 20 is possible.
- the headbox 1 according to the invention and illustrated in FIGS. 2 to 7 and correspondingly described can be used in an outstanding manner also in a machine for producing a fibrous web, in particular a paper, board or tissue web, from at least one fibrous stock suspension.
- the invention provides a headbox of the type mentioned, which avoids the known disadvantages of the prior art as far as possible, preferably completely. In particular, it ensures the most cost-effective design possible, ease of use and minimal maintenance practically independent of the operating conditions always a possible parallel and straight outlet gap at the headbox. In this case, as uniform as possible impingement of emerging from the headbox pulp suspension jet on the at least one screen of the wire section is easily achieved. LIST OF REFERENCES
- a axis (swivel axis)
Landscapes
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009045166A DE102009045166A1 (de) | 2009-09-30 | 2009-09-30 | Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn, insbesondere einer Papier- oder Kartonbahn |
PCT/EP2010/056519 WO2011038945A2 (de) | 2009-09-30 | 2010-05-12 | Stoffauflauf für eine maschine zur herstellung einer faserstoffbahn, insbesondere einer papier- oder kartonbahn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2488696A2 true EP2488696A2 (de) | 2012-08-22 |
EP2488696B1 EP2488696B1 (de) | 2014-01-15 |
Family
ID=43662615
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10720739.1A Not-in-force EP2488696B1 (de) | 2009-09-30 | 2010-05-12 | Stoffauflauf für eine maschine zur herstellung einer faserstoffbahn, insbesondere einer papier - oder kartonbahn sowie maschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20130075051A1 (de) |
EP (1) | EP2488696B1 (de) |
CN (1) | CN102812181B (de) |
DE (1) | DE102009045166A1 (de) |
WO (1) | WO2011038945A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10981294B2 (en) | 2016-08-05 | 2021-04-20 | United States Gypsum Company | Headbox and forming station for fiber-reinforced cementitious panel production |
US11173629B2 (en) | 2016-08-05 | 2021-11-16 | United States Gypsum Company | Continuous mixer and method of mixing reinforcing fibers with cementitious materials |
US11224990B2 (en) | 2016-08-05 | 2022-01-18 | United States Gypsum Company | Continuous methods of making fiber reinforced concrete panels |
US10272399B2 (en) | 2016-08-05 | 2019-04-30 | United States Gypsum Company | Method for producing fiber reinforced cementitious slurry using a multi-stage continuous mixer |
CN107930171B (zh) * | 2017-12-20 | 2023-05-26 | 四川省银河化学股份有限公司 | 用于高温高压反应器出料的闪蒸器 |
CN114108354B (zh) * | 2021-12-09 | 2023-12-22 | 浙江华章科技有限公司 | 一种流浆箱压力控制系统 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4106763A1 (de) | 1991-02-22 | 1992-08-27 | Voith Gmbh J M | Stoffauflauf |
DE19845722A1 (de) * | 1998-10-05 | 2000-04-06 | Voith Sulzer Papiertech Patent | Stoffauflauf |
EP0997578B1 (de) | 1998-10-05 | 2004-04-28 | Voith Paper Patent GmbH | Stoffauflauf |
ATE332999T1 (de) | 1998-10-05 | 2006-08-15 | Voith Paper Patent Gmbh | Stoffauflauf |
DE10060328C1 (de) * | 2000-12-04 | 2001-12-20 | Pama Papiermaschinen Gmbh | Hochturbulenz-Stoffauflauf, insbesondere für Hochgeschwindigkeits-Papiermaschinen |
DE102004038541A1 (de) | 2004-08-06 | 2006-03-16 | Voith Paper Patent Gmbh | Stoffauflauf für eine Maschine zur Herstellung einer Faserstoffbahn, insbesondere einer Papier- oder Kartonbahn |
-
2009
- 2009-09-30 DE DE102009045166A patent/DE102009045166A1/de not_active Withdrawn
-
2010
- 2010-05-12 CN CN201080043984.1A patent/CN102812181B/zh not_active Expired - Fee Related
- 2010-05-12 WO PCT/EP2010/056519 patent/WO2011038945A2/de active Application Filing
- 2010-05-12 EP EP10720739.1A patent/EP2488696B1/de not_active Not-in-force
-
2012
- 2012-03-16 US US13/422,663 patent/US20130075051A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011038945A3 * |
Also Published As
Publication number | Publication date |
---|---|
CN102812181B (zh) | 2015-06-03 |
WO2011038945A2 (de) | 2011-04-07 |
CN102812181A (zh) | 2012-12-05 |
WO2011038945A3 (de) | 2012-07-19 |
US20130075051A1 (en) | 2013-03-28 |
EP2488696B1 (de) | 2014-01-15 |
DE102009045166A1 (de) | 2011-03-31 |
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