CN103547732B - For carrying out the sealing structure sealed between the first rotating cylinder and end cover mould component - Google Patents
For carrying out the sealing structure sealed between the first rotating cylinder and end cover mould component Download PDFInfo
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- CN103547732B CN103547732B CN201280010207.6A CN201280010207A CN103547732B CN 103547732 B CN103547732 B CN 103547732B CN 201280010207 A CN201280010207 A CN 201280010207A CN 103547732 B CN103547732 B CN 103547732B
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- Prior art keywords
- rotating cylinder
- potted component
- face
- sealing structure
- pressure apparatus
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- 238000007789 sealing Methods 0.000 title claims abstract description 97
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 67
- 238000012545 processing Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 9
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000000295 complement effect Effects 0.000 claims description 4
- 230000001737 promoting effect Effects 0.000 abstract description 23
- 230000018044 dehydration Effects 0.000 description 11
- 238000006297 dehydration reaction Methods 0.000 description 11
- 238000005406 washing Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 239000000725 suspension Substances 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 4
- 239000001913 cellulose Substances 0.000 description 4
- 230000036961 partial effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000007790 scraping Methods 0.000 description 3
- 206010033546 Pallor Diseases 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010025 steaming Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000004061 bleaching Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/35—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition
- B01D33/37—Filters with filtering elements which move during the filtering operation with multiple filtering elements characterised by their mutual disposition in parallel connection
-
- 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
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
-
- 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
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
Abstract
A kind of sealing structure (500) for carrying out sealing between the first rotating cylinder (102) and end shield mould component (210) in the equipment being included in for processing paper pulp, first rotating cylinder is rotatable relative to end shield mould component and sealing structure around the first pivot center (107), and first rotating cylinder be provided with permeable outer surface (106), this outer surface is axially extending between the first end (503) and second end of the first rotating cylinder, and first rotating cylinder be at least provided with end face (506) at end, this sealing structure includes: containment member (510), first pressure apparatus (516), this first pressure apparatus is for promoting containment member along the direction towards the first rotating cylinder, so that it is resisted against a part for end face, the circumferentially extending potted component (508) kept by keeper (512), and second pressure apparatus (522), this second pressure apparatus for promoting at least Part I (524) of described potted component along the direction towards the first rotating cylinder, so that Part I is resisted against a part for end face, keeper is arranged to keep the second pressure apparatus, and the distal second portion of potted component (528) is near described containment member, wherein, seal structure and include for promoting the Part II of potted component so that Part II is resisted against the device (545) of a part for end face along the direction towards the first rotating cylinder, and for promoting the device of the Part II (528) of potted component (508) and the second pressure apparatus (522) to separate along the direction towards the first rotating cylinder. a kind of equipment for processing paper pulp has this sealing structure (500).
Description
Technical field
The present invention relates in a kind of equipment being included in for processing paper pulp, particularly fibrous pulp for carrying out the sealing structure sealed between the first rotating cylinder and end shield mould component, this first rotating cylinder around pivot center relative to end shield mould component and seal structure rotatable. First rotating cylinder is provided with permeable outer surface, and this outer surface extends between first end and the second end of the first rotating cylinder, and the first end of at least the first rotating cylinder is provided with end face. This sealing structure includes: containment member; First pressure apparatus, this first pressure apparatus is for promoting containment member along the direction towards the first rotating cylinder, so that containment member is resisted against a part for end face; The circumferentially extending potted component kept by keeper; And second pressure apparatus, this second pressure apparatus for promoting at least Part I of potted component along the direction towards the first rotating cylinder, so that Part I is resisted against a part for end face. Keeper is arranged to keep the second pressure apparatus, and the distal second portion of potted component is near containment member.Additionally, the present invention relates to a kind of equipment for processing paper pulp, this equipment includes the sealing structure of the above-mentioned type.
Background technology
The fiberline producing cellulose based product can include some type of washing facility, in order to be separated with paper pulp by steaming and decocting liquid. Subsequently in process, washing facility is also configured to after blanching step to separate bleaching liquid. The washing facility of the number of different types that with good grounds different principle is operated.
When producing cellulose based product, roller squeezer is usually used to and cellulose-based pulp is washed and/or dehydration. Roller squeezer includes two associateds and counter-rotational pressure roller, and each pressure roller have permeable outer surface, i.e. so-called covering surfaces, and thus outer surface is permeable for the liquid gone out from pulp squeezing. Pulp deposits is on permeable outer surface, and roll gap between pressure roller or squeezing in press nip, thus squeezes out from paper pulp by liquid. Pressure roller may additionally include the one or more washing zone before press nip. US3,980,518 examples disclosing this roller squeezer, wherein, the pivot center of roller squeezer is located substantially in same level. Paper pulp is fed through press nip along the rotation direction of pressure roller, and paper pulp is from the bottom up by the press nip between pressure roller. WO2009/075642 discloses another example of roller squeezer.
Another known washing facility is cartridge type washing machine, wherein, the paper pulp of cellulose deposits on single rotation cartridge filter and carries out dehydration, this rotation cartridge filter has permeable outer surface, after adding cleaning mixture, this rotation cartridge filter is displaced in the liquid remaining on paper web after the aforementioned treatment Step of such as steaming and decocting step or blanching step. Static pressure causes the contaminated liquids (the being called filter liquor) outer surface by liquid permeable. Another development form of original cartridge type washing machine is pressurized displacement formula washing machine, wherein, forces filter liquor to pass through permeable outer surface under overvoltage.
In general, at least some of circumference at rotating cylinder or the permeable outer surface of pressure roller can be provided with axially extending and circular gap or space, this gap or space produce overvoltage relative to atmospheric exposure, to release filter liquor from the paper pulp the outer surface being positioned at described gap, with through permeable outer surface. By the gap closed, strengthen the dehydration of paper pulp. It is generally required to include the sealing structure of multiple parts to close this gap. WO2010/036193 discloses for carrying out, between movable side casing member and the outer surface of rotating pressure roller, between movable side casing member and end shield mould component and between movable side casing member and central authorities' casing member, the sealing structure that seals. Additionally, can also require the sealing structure for carrying out sealing between each end of rotating pressure roller and end shield mould component. In the following detailed description, illustrate in greater detail with reference to Figure 10-11 and open for carrying out the sealing structure of prior art sealed between the end of rotating rotating cylinder or roller and fixing end shield mould component. Additionally, rotating cylinder packing ring is further equipped with the corresponding sealing structure for carrying out sealing between the end of rotating single filtration rotating cylinder and end shield mould component.
Summary of the invention
Inventors have realised that for making in the equipment of paper pulp, particularly fibrous pulp dehydration for carrying out the shortcoming of the sealing structure of prior art sealed between rotating rotating cylinder and fixing end shield mould component.By inventors realized that a shortcoming be in that paper pulp due in conjunction with in Figure 10-11 in more detail disclosed reason can be stuck in rotating rotating cylinder and seal between structure. Jammed paper pulp can cause the leakage of pulp suspension and/or filter liquor, and can cause rotating rotating cylinder and seal the abrasion increase of structure. If additionally, have impact on sealing function, the pressure in the gap of closing or space can not keep, and this can affect/deteriorate dewatering efficiency.
The purpose of the present invention be thus in that to provide a kind of in the equipment make dewatering of pulp for carrying out the sealing structure of improvement sealed between rotating rotating cylinder and fixing end shield mould component.
Another object of the present invention is to provide a kind of in the equipment make dewatering of pulp for carrying out the sealing structure of improvement sealed between rotating rotating cylinder and fixing end shield mould component, the problems referred to above of the prior art can be overcome in this sealing structure.
The above-mentioned purpose of the present invention is by providing realizing for the sealing structure carrying out sealing between the first rotating cylinder and end shield mould component in a kind of equipment being included in and making paper pulp, particularly fibrous pulp dehydration, first rotating cylinder is rotatable relative to end shield mould component and sealing structure around the first pivot center, and first rotating cylinder be provided with permeable outer surface, this outer surface is axially extending between first end and the second end of the first rotating cylinder, and first rotating cylinder be at least provided with end face at end, this sealing structure includes:
Containment member,
First pressure apparatus, this first pressure apparatus is for promoting containment member along the direction towards the first rotating cylinder, so that containment member is resisted against a part for end face,
The circumferentially extending potted component kept by keeper, and
Second pressure apparatus, this second pressure apparatus for promoting the Part I of potted component along the direction towards the first rotating cylinder, so that this Part I is resisted against a part for end face, keeper is arranged to keep the second pressure apparatus, and the end the second end of potted component is near containment member, wherein, seal structure and include for promoting the Part II of potted component so that this Part II is resisted against the device of a part for end face along the direction towards the first rotating cylinder, wherein, device and the second pressure apparatus for promoting the Part II of potted component along the direction towards the first rotating cylinder separate.
By the sealing structure according to the present invention, make the distal second portion of potted component effectively and efficiently compress end face, be therefore prevented from paper pulp and be stuck between potted component and end face, and also prevent paper pulp to be stuck between containment member and end face. Therefore, the abrasion to end face, rotating rotating cylinder and potted component is efficiently reduced. Additionally, avoid the leakage of pulp suspension and/or filter liquor, this is because sealing function will not be subject to the impact of jammed paper pulp, Part II and/or the containment member of potted component are pushed away end face by jammed paper pulp. Therefore, by the present invention, it is provided that a kind of for making the improvement between rotating rotating cylinder and fixing end shield mould component of the equipment of dewatering of pulp seal, and the pulp processing in dehydration equipment is improved.
Each pressure apparatus can be the form of pressure member, pressure unit or press device. First pressure apparatus can include bias unit, for instance, compression spring, leaf spring, torsion spring or torsion bar, volute spring etc., or other pressure apparatus can be included, such as, the pressure fluid of such as gas or liquid etc. the pressure apparatus activated, or other suitable pressure apparatus.
Containment member can be rigidity, and such as can be made up of polymeric material. Potted component can be made up of polymeric material. The expandable tubular that second pressure apparatus can include flexible material, such as polymeric material is made. Keeper can be the form of circumferentially extending keeper, and can such as include circumferentially extending groove, and it can keep the second pressure apparatus and potted component. Potted component can be circumferentially elongated. End face can be made up of other structure any of solid circles plate or end ring or the first rotating cylinder. End face can be the form in the annular surface around the first pivot center or the annular surface portion around the first pivot center. Annular surface or annular surface portion can be made up of end ring.
Sealing structure and can include locking device, this locking device is for circumference or the tangential Part II locking potted component, to prevent potted component and Part II thereof from moving in the circumferential direction, to avoid potted component circumferentially to misplace. Seal structure and can include the guidance unit for guiding containment member. Locking device can be set to lock onto the Part II of potted component such as guidance unit, keeper or containment member, or its combination it is also possible that. Seal structure and may be defined as end sealing structure. The Part II of potted component can be located at outside keeper, or more specifically, the Part II of potted component can be located at keeper outer circumferential. The Part II of potted component can be located at outside the groove of keeper, or more specifically, the Part II of potted component can be located at the outer circumferential of the groove of keeper.
The advantageous embodiment of the sealing structure according to the present invention, for promoting the device of the Part II of potted component to be arranged to promote the Part II of potted component along the direction towards the first rotating cylinder along the direction towards the first rotating cylinder. By this embodiment, improve the sealing between rotating rotating cylinder and fixing end shield mould component further.
Another advantageous embodiment of sealing structure according to the present invention, for promoting the device of the Part II of potted component to include the bias unit of the Part II for biasing potted component towards end face along the direction towards the first rotating cylinder. This is directed towards the effective means that end face promotes the Part II of potted component, and further improves the sealing between rotating rotating cylinder and fixing end shield mould component.
Still further advantageous embodiment according to assembly of the invention, bias unit includes at least one compression spring. This is directed towards the effective means that end face promotes the Part II of potted component, and further improves the sealing between rotating rotating cylinder and fixing end shield mould component. Or, bias unit can include other spring, for instance, leaf spring, torsion spring or torsion bar, volute spring etc., or other pressure apparatus can be included, for instance, the pressure fluid of such as gas or liquid etc. the pressure apparatus activated.
The still further advantageous embodiment of the sealing structure according to the present invention, for promoting the device of the Part II of potted component to include the first pressure apparatus along the direction towards the first rotating cylinder. This is directed towards the effective means that end face promotes the Part II of potted component, because have employed the first pressure apparatus having been used for promoting containment member, and without additional pressure apparatus. Therefore, the sealing between rotating rotating cylinder and fixing end shield mould component is improved further. Or, separate for the device and the first pressure apparatus promoting the Part II of potted component along the direction towards the first rotating cylinder. For promoting the device of the Part II of potted component can include the 3rd pressure apparatus acting on the Part II of potted component along the direction towards the first rotating cylinder. 3rd pressure apparatus can such as construct in the way of corresponding with the first pressure apparatus, and can separate with the first pressure apparatus.
Another advantageous embodiment of sealing structure according to the present invention, the Part II of containment member and potted component includes the complementary guide being fitted to each other, and guide is arranged to guide the Part II of potted component along the direction towards the first rotating cylinder.This is directed towards the effective means that end face promotes the Part II of potted component, and further improves the sealing between rotating rotating cylinder and fixing end shield mould component.
Still further advantageous embodiment according to assembly of the invention, guide includes groove and the protuberance with groove fit. This is directed towards the effective means that end face promotes the Part II of potted component, and further improves the sealing between rotating rotating cylinder and fixing end shield mould component. But, other guide it is also possible that, for instance two protuberances being fitted to each other.
Still further advantageous embodiment according to assembly of the invention, containment member is provided with groove, and the Part II of potted component is provided with protuberance. This is directed towards the effective means that end face promotes the Part II of potted component, and further improves the sealing between rotating rotating cylinder and fixing end shield mould component. Or, containment member is provided with protuberance, and the Part II of potted component is provided with groove.
Still further advantageous embodiment according to assembly of the invention, end face is at an angle with pivot center shape, first pressure apparatus is arranged to promote containment member axially towards the first rotating cylinder, second pressure apparatus is arranged to promote the Part I of potted component axially towards the first rotating cylinder, and for promoting the device of the Part II of potted component to be arranged to promote the Part II of potted component axially towards the first rotating cylinder. By this embodiment, improve the sealing between rotating rotating cylinder and fixing end shield mould component further.
Still further advantageous embodiment according to assembly of the invention, containment member and each in potted component are arranged against the part in end face, and this end face is approximately perpendicular to the pivot center of the first rotating cylinder. By this embodiment, improve the sealing between rotating rotating cylinder and fixing end shield mould component further. Or, end face can be substantially parallel to pivot center, first pressure apparatus is arranged to promote containment member radially toward the first rotating cylinder, second pressure apparatus is arranged to promote the Part I of potted component radially toward the first rotating cylinder, and for promoting the device of the Part II of potted component to can be set to promote the Part II of potted component radially toward the first rotating cylinder.
Still further advantageous embodiment according to assembly of the invention, containment member and each in potted component are arranged against the part in end face, and this end face is in the annular surface around pivot center or the form in the annular surface portion around pivot center.
In addition, the above-mentioned purpose of the present invention realizes by providing a kind of equipment for processing paper pulp, this equipment includes at least one first rotating cylinder, at least one first rotating cylinder is rotatable around the first pivot center and is provided with the outer surface of liquid permeable, outer surface is axially extending between first end and the second end of the first rotating cylinder, equipment is suitable to be received in paper pulp on the outer surface of the first rotating cylinder, and while rotating the first rotating cylinder, process the paper pulp being positioned on outer surface, and equipment is suitable to by least making dewatering of pulp process paper pulp, first rotating cylinder is pivotally mounted to two end shield mould components, first rotating cylinder is at least provided with end face at end, and at least one in end shield mould component keeps for carrying out the sealing structure sealed between the end shield mould component of the first rotating cylinder and correspondence, first rotating cylinder is rotatable relative to sealing structure, it is characterized in that, sealing structure includes the feature of any one in above-described embodiment of the feature according to any one of claim 1 to 11 or sealing structure.By the equipment according to the present invention, it is provided that the improvement between rotating rotating cylinder and fixing end shield mould component seals, and improves the pulp processing in dehydration equipment. Produced by the equipment according to the present invention and embodiment, other positive role is corresponding to combining the effect according to each embodiment of the sealing structure of the present invention. Can be that each end of the first rotating cylinder arranges the sealing structure according to the present invention.
Still further advantageous embodiment according to assembly of the invention, the first rotating cylinder is at least provided with end face at first end place, and this end face is the form in the annular surface around pivot center or the annular surface portion around pivot center.
Still further advantageous embodiment according to assembly of the invention, this equipment includes the second rotating cylinder, this second rotating cylinder is rotatable around pivot center, and it is provided with the outer surface of liquid permeable, first and second rotating cylinders limit the press nip between them, paper pulp squeezes in this press nip, and this equipment is arranged to along the rotation direction of pressure roller, paper pulp is fed through press nip. The sealing structure of innovation is advantageous particularly for the equipment with two the counter-rotational pressure roller forming press nip. This sealing structure can extend circumferentially to press nip along the rotation direction of the first rotating cylinder from containment member, or extends to the region after press nip through press nip. The sealing structure according to the present invention can be set for each end of respectively the first and second rotating cylinders. Therefore, can being provided with four in the pressure roller with two rotating cylinders and seal structure, wherein, two seal structure and can be kept by the first end shield mould component, and two seal structure and can be kept by the second end shield mould component.
Another advantageous embodiment of equipment according to the present invention, at least one in end shield mould component keeps for carrying out the second sealing structure sealed between the end shield mould component of the second rotating cylinder and correspondence, it is rotatable that second rotating cylinder seals structure relative to second, and second seal structure and include the feature according to any one of claim 1 to 11, or seal the feature of any one in above-described embodiment of structure.
Seal the features described above of structure and equipment and embodiment respectively can by various possible in the way of combine, thus providing other advantageous embodiment.
Additionally, manifest from the detailed description of embodiment respectively according to the sealing structure of the present invention and the advantageous embodiment of equipment and the further advantage according to the present invention.
Accompanying drawing explanation
To be more fully described the present invention by embodiment and in conjunction with accompanying drawing for illustration purpose now, in the accompanying drawings:
Fig. 1 is provided with the diagrammatic side view of the equipment of the embodiment of the sealing structure according to the present invention;
Fig. 2 is the diagrammatic top view of the bucket section of Fig. 1;
Fig. 3 is provided with the schematic isometric of the first side casing member of Fig. 1 equipment of the sealing device according to prior art;
Fig. 4 is provided with the signal partial view of the first end shield mould component of Fig. 2 equipment of the embodiment of the sealing structure according to the present invention;
Fig. 5 is the schematic diagram of the first end of first rotating cylinder of Fig. 1;
Fig. 6 is against Fig. 4 of the first end of the first rotating cylinder and seals the schematic partial top views of structure;
Fig. 7-9 is the schematic partial perspective view of the sealing structure of Fig. 4; And
Figure 10-11 is the schematic partial perspective view of the sealing structure according to prior art.
Detailed description of the invention
Fig. 1 illustrates the embodiment of the equipment for making fibrous pulp dehydration of the embodiment being provided with the sealing structure according to the present invention. This equipment may also be arranged to washing pulp. This equipment can have the structure substantially symmetric about symmetrical plane 101, and in FIG, the left side of equipment, the i.e. left side of symmetrical plane 101 illustrate equipment in an open position, and on the right side of equipment, namely the right side of symmetrical plane 101 equipment being in Guan Bi and operating position is shown.This equipment can include the first rotating rotating cylinder 102 or pressure roller and the second rotating rotating cylinder 104 or pressure roller, and each rotating cylinder 102,104 has permeable outer surface 106,108. Each permeable outer surface 106,108 is axially extending between the first end 503 and second end of corresponding rotating cylinder 102,104. First rotating cylinder 102 is rotatable around the first pivot center 107, and the second rotating cylinder 104 is rotatable around the second pivot center 109. Rotating cylinder 102,104 can include multiple filtrate channel 110, and these filtrate channel are positioned at the inner radial of outer surface 106,108, thus the filter liquor of discharge being channeled out. Two rotating cylinders 102,104 limit press nip 112 between which, squeeze paper pulp in this press nip 112, and rotating cylinder is arranged to along as by arrow R1And R2The rightabout represented rotates. This equipment can be set to be fed through press nip 112 along the paper pulp that generally vertically makes from bottom to top, but, paper pulp can be fed through press nip 112 along other direction.
This equipment can include case, this case includes the bucket 114,116,118 being provided with rotating cylinder 102,104 in it, the outer surface 106,108 of bucket 114,116,118 partly fenced each rotating cylinder 102,104, thus, limit the restriction by bucket 114,116,118 and the outer surface 106,108 of corresponding rotating cylinder 102,104 of the space for each rotating cylinder 102,104 or gap 124,125, space or gap. Bucket 114,116,118 can be constructed by first side bucket section the 114, second side bucket section 116 and core barrel section 118 and form, the outer surface 106 of the first side bucket section partly fenced first rotating cylinder 102, the outer surface 108 of the second side bucket section partly fenced second rotating cylinder 104, the outer surface 106,108 between press nip 112 and the side bucket section 114,116 of core barrel section 118 partly fenced rotating cylinder 102,104. Core barrel section 118 is along generally vertically movable, in order to provide the accessibility added to the region near press nip 112. In FIG, on the left of equipment, core barrel section 118 is illustrated at the open position of not operation, and on the right side of equipment, core barrel section 118 is illustrated at operation make position.
As it has been described above, gap 124,125 can be formed between the outer surface 106,108 of bucket 114,116,118 and rotating cylinder 102,104. In FIG, only the right side of equipment illustrates the equipment being in closed procedure position, thus only illustrates the gap 124 about the second rotating cylinder 104 and bucket 116,118, and is absent from the gap 125 about the first rotating cylinder 102 and bucket 114,118 in FIG. But, by the corresponding gap 125 about the first rotating cylinder 102 shown in phantom in Fig. 1. When the left side of equipment is in the closed procedure position of correspondence, gap 125 is arranged between the first rotating cylinder 102 and bucket 114,118.
Described case can include the first side casing member 115 and the second side casing member 117, first side casing member extends between the two ends of the first rotating cylinder 102, and first side bucket section 114 be installed to this first side casing member, second side casing member extends between the two ends of the second rotating cylinder 104, and the second side bucket section 116 is installed to this second side casing member. Side casing member 115,117 is pivotable around pivot axis 121,123 and movable between the closed position and the open position together with their side bucket section 114,116, in order to provide the path to rotating cylinder 102,104. In FIG, in the left side of equipment, the first side casing member 115 is in an open position, thus provides the path to rotating cylinder 102, and on the right side of equipment, the second side casing member 117 is in the close position.Or, only in the casing member of side is movable, and another can be fixing, or two side casing members may each be fixing. Movable side casing member can also with the alternate manner motion except being pivoted around corresponding pivot axis 121,123.
In addition, case can include central authorities' casing member 140, the first fixing end shield mould component 210 and the second fixing end shield mould component 212, central authorities' casing member is in the form of the fixing base unit 140 being positioned approximately in below the first and second rotating cylinders 102,104, first end shield mould component is the form of the first backfall (gable), and the second end shield mould component is the form (figure 2 illustrates end shield mould component 210,212) of the second backfall. Rotating cylinder 102,104 is pivotally mounted to end shield mould component 210,212, rotatable thus relative to end shield mould component 210,212. Central authorities' casing member 140 may be mounted to end shield mould component 210,212. Each side casing member 115,117 is pivotally attached to central authorities' casing member 140, and each side casing member 115,117 also can be connected to central authorities' casing member 140 via corresponding hydraulic cylinder 178,179, hydraulic cylinder is in order to control the motion of the side casing member 115,117 of correspondence. Core barrel section 118 may be mounted to central authorities' casing member 140.
Sealing device 404(is referring to Fig. 3) may be provided between each movable side casing member 115,117 and central authorities' casing member 140, and between each movable side casing member 115,117 and end shield mould component 210,212. In addition, axial seal unit 180,182 may be mounted to each side casing member 115,117, each axial seal unit 180,182 extends along the longitudinal extension part of corresponding rotating cylinder 102,104, and be suitable to the outer surface 106,108 with rotating cylinder 102,104 when side casing member 115,117 is in its make position adjacent. Sealing device and axial seal unit 180,182 are suitable to make gap 124,125 that paper pulp to be assigned to gap 124,125 part and external environment condition, i.e. atmospheric exposure. Each axial seal unit 180,182 can be the form of scraper member. Thus, by above-mentioned sealing device and axial seal unit 180,182, the surface in gap 124,125 and restriction gap 124,125 and atmospheric exposure.
This equipment can include the first paper pulp distributor 126 for being assigned to by paper pulp on the first rotating cylinder 102 and be used for the second paper pulp distributor 128 being assigned to by paper pulp on the second rotating cylinder 104. Paper pulp can be supplied to various modes known to the skilled distributor 126,128. Paper pulp distributor 126,128 can be set to the whole axial length along each rotating cylinder 102,104 and paper pulp be assigned to gap 124,125. It is assigned to the paper pulp on the outer surface 106,108 of rotating cylinder 102,104 and can form pulp mat on rotating cylinder 102,104. From paper pulp distributor 126,128 to press nip 112, paper pulp is fed in gap 124,125 along rotation direction R1, the R2 of rotating cylinder 102,104, carries out dehydration or dehydration and washing simultaneously.
Fig. 2 is shown in the core barrel section 118 in equipment viewed from above when removing rotating cylinder. This equipment can via four legs 186,187,188,189(two legs are only shown in FIG) shelve on the ground. In fig. 2, the end shield mould component 210,212 of case is schematically illustrated.
This equipment may also include paper pulp conveyor screw machine 152, and this paper pulp conveyor screw machine can be such as the form that paper pulp decomposes screw machine or cutting auger machine, transmits the paper pulp of squeezing in press nip 112 towards this paper pulp conveyor screw machine.Paper pulp conveyor screw machine 152 can axially extend, and can be set to decompose paper pulp and paper pulp be axially conveyed away from squeezer to be for further processing. Each rotating cylinder 102,104 can be provided with the handle-scraping method (doctorbar) 154,156 of correspondence, and each handle-scraping method 154,156 is provided with the scraper (doctorblade) 158,160 of correspondence bottom it, in order to the outer surface 106,108 of corresponding rotating cylinder 102,104 of swiping.
Fig. 3 schematically illustrates and is provided with above-mentioned sealing device 404, Fig. 1 the first side casing member 115. First side casing member 115 to be sealed is the circumferential surface of the first side casing member 115 against surface 406,408,410,412,414 on opposing surfaces, and sealing device 404 can the whole extension on peripherally surface 406,408,410,412,414 extend. Sealing device 404 may be adapted to be sealed between the surface relative with described surface 406,408,410,412,414 of surface the 406,408,410,412, the 414 and first side casing member 115 being located on the first side casing member 115. Surface 406 and 414 is suitable to be sealed against on the apparent surface on the end cover mould component 210,212 being located at equipment, and surface 408,410 and 412 is suitable to be sealed against on the apparent surface on the central casing member 140 being located at equipment. Second side casing member can be provided with the sealing device 404 of correspondence. But, the dewatering of pulp equipment being provided with the sealing structure according to the present invention can have the case without drawer at movable side casing member.
With reference to Fig. 4 to 9, schematically illustrate each side of sealing structure 500 according to the present invention. Fig. 4 schematically illustrates a part for the inside of the first end shield mould component 210 when seeing from the first rotating cylinder 102, and wherein, the first end shield mould component 210 is provided with the embodiment of the sealing structure 500 according to the present invention. First rotating cylinder 102 can be installed to the first end shield mould component 210 by bearing 502, and the first rotating cylinder 102 is rotatable relative to sealing structure 500. Schematically illustrating the first end 503 of the first rotating cylinder 102 in Figure 5, this end 503 can be provided with and be arranged to the end component 505 that axle journal is bearing in bearing 502. At the first end 503 place, the first rotating cylinder 102 can be provided with the end ring 504 limiting end face 506. End face 506 can be the annular surface 506 around the first pivot center 107, or the annular surface portion around the first pivot center 107. End face 506 can extend along the whole periphery of the first rotating cylinder 102. First rotating cylinder 102 also can be provided with the end face 506 without end ring 504. End face 506 can be approximately perpendicular to the pivot center 107 of the first rotating cylinder 102. Seal structure 500 to be arranged to be sealed between end face 506 and the first end shield mould component 210. Seal structure 500 and include circumferentially extending potted component 508 and containment member 510. Containment member 510 is arranged on paper pulp and is deposited in the region on the outer surface 106 of the first rotating cylinder 102 by the first paper pulp distributor 126. Potted component 508 circumferential extensions along the circumferential extensions of end face 506 from containment member 510, along the gap 125 of the first rotating cylinder 102 can extend to press nip 112, or extends to the region after press nip 112 through press nip. Therefore, potted component 508 can C be circumferentially elongated. Sealing the circumferentially extending keeper 512 that structure 500 can include being arranged to keep potted component 508, and keeper 512 can include circumferentially extending groove 514, this groove coordinates with potted component 508 at least in part.Keeper 512 can include limiting at least two circumferentially extending wall 515 of groove 514,517(referring to Fig. 4). Each circumferentially extending wall 515,517 is divided into multiple circumferentially-spaced multiple unit. It is such as that the first pressure apparatus 516 of bias unit is arranged to such as promote or bias, towards the first rotating cylinder 102, the part forcing containment member 510 to be resisted against end face 506 by containment member 510 by A vertically. First pressure apparatus 516 can include compression spring 518. But, as it was previously stated, other pressure apparatus it is also possible that. Containment member 510 can be the form of block, and can be made up of rigid material, such as polymeric material. Containment member 510 can become the shape of parallelepiped, for instance approximately parallelepiped body or cube (cuboid) or or even square. Potted component 508 also can be made up of polymeric material or other suitable material any. Seal the guidance unit 520 that structure 500 can include being arranged to keep and guide containment member 510. Guidance unit 520 is arranged to prevent containment member 510 from misplacing along the rotation direction R1 of the first rotating cylinder 102. With reference to Fig. 9, keeper 512 keeps the second pressure apparatus 522, and this second pressure apparatus in order to such as by promoting the part forcing Part I 524 to be resisted against end face 506 by least Part I 524 A vertically of potted component 508 towards the first rotating cylinder 102. In fig .9, potted component 508 has been removed for illustrative purposes to illustrate the second pressure apparatus 522. Part I 524 can form the major part of potted component 508. Second pressure apparatus 522 can include being suitable to be pressurizeed by the fluid of such as gas and expand, and can extend along the longitudinal extension part of potted component 508, and can be positioned between the bottom surface of potted component 508 and groove 514.
Containment member 510 is arranged to compared with potted component 508 to resist bigger power. These bigger power can be caused by paper pulp, paper pulp press nip 112 below and remain on rotating cylinder 102 after the scraping of scraper 158 and rotating cylinder 102 end ring 504 region in, and therefore reenter gap 125. These bigger power also can be caused by the paper pulp that A moves towards end ring 504 vertically after on the outer surface 106 being deposited on the first rotating cylinder 102. Additionally, axial seal unit 180 end can be configured as and is partly resisted against and seals up containment member 510, axial force is also put on containment member 510 by this. Additionally, the region that containment member 510 is positioned at the sealing device 404 of axial seal unit the 180, first side casing member 115 and circumferential seal element 508 meets, this makes region more complicated at seal aspect. The sealing device 404 of the first side casing member 115 can be resisted against the bandy surface 525 of keeper 512 and the first side wall 527 of guidance unit 520. Axial seal unit 180 can axially against the second wall 529 in guidance unit 520 and axially against in containment member 510.
The distal second portion 528 of potted component 508 is near containment member 510, in order to be sealed against containment member 510. The Part II 528 of potted component 508 can be located at the outer circumferential of keeper 512. The Part II 528 of potted component 508 can be located at the outer circumferential of the groove 514 of keeper 512. Sealing structure 500 and can include locking device 530, this locking device is for circumference or the tangential Part II 528 locking potted component 508, to prevent potted component 508 and Part II 528 circumferentially C motion thereof or dislocation.Locking device 530 can be set to Part II 528 circumference of potted component 508 is locked onto guidance unit 520. Locking device 530 can include the compensation device being fitted to each other, for instance groove 532 and the protuberance 534 coordinated with groove 532. Guidance unit 520 can be provided with protuberance 534, and the Part II 528 of potted component 508 can be provided with groove 532. But, for prevent potted component 508 and Part II 528 circumferentially C dislocation other locking device it is also possible that.
The Part II 528 of containment member 510 and potted component 508 includes the complementary guide 536 being fitted to each other. Guide 536 can include groove 538 and the protuberance 540 coordinated with groove 538. Groove 538 can have at least one wall 542, and this wall is at an angle relative to pivot center 107 shape of the first rotating cylinder 102. Protuberance 540 can have at least one wall 544, and pivot center 107 shape of this wall and the first rotating cylinder 102 is at an angle. Containment member 510 can be provided with groove 538, and the Part II 528 of potted component 508 can be provided with protuberance 540, otherwise or. Other design of complementary guide it is also possible that. Seal structure 500 and include the device 545 of the Part II 528 for promoting potted component 508 along the direction towards the first rotating cylinder 102, so that Part II 528 is resisted against a part (referring to Fig. 8) for end face 506. For promoting along the direction towards the first rotating cylinder 102, the device 545 of the Part II 528 of potted component 508 can be included the first pressure apparatus 516. First pressure apparatus 516 is arranged to such as be promoted towards the first rotating cylinder by A vertically, such as bias the Part II 528 of potted component 508 to force Part II 528 to be resisted against a part for end face 506. Guide 536 is arranged to A vertically and guides the Part II 528 of potted component 508 towards the first rotating cylinder 102. For promoting the Part II 528 of potted component 508 so that the device 545 that Part II is resisted against a part for end face 506 can be located at outside the groove 514 of keeper 512 along the direction towards the first rotating cylinder 102, and can separate with the second pressure apparatus 522.
When end face 506 is as shown in Figure 5 in the form of the annular surface 506 around the first pivot center 107, or in during around the form in the annular surface portion of the first pivot center 107, containment member 510 and each part being therefore arranged against the part in the annular surface 506 around the first pivot center 107 or the annular surface portion around the first pivot center in potted component 508.
In figs. 4 and 6, the end shield mould component 210 of half is only shown. It will be appreciated that second half the end shield mould component 210 being positioned at symmetrical plane 101 opposite side can be provided with the correspondence sealing structure 500 of the first end for the second rotating cylinder 104. The equipment shown in Fig. 1 that it will be appreciated that can be provided with a sealing structure 500 of each end for corresponding rotating cylinder 102,104. Therefore, this equipment can be provided with four and seal structure 500, and each end shield mould component 210,212 keeps two to seal structure 500.
In order to further illustrate the shortcoming overcome by the sealing structure 500 of the present invention, illustrate for carrying out the sealing structure 700 of prior art sealed between the end of rotating rotating cylinder or roller and fixing end shield mould component referring now to Figure 10-11. The sealing structure 700 of shown prior art includes the Part I 724 that may correspond to guidance unit 720, first pressure apparatus 716 of the character pair shown in Fig. 4-9, keeper the 712, second pressure apparatus 722, locking device 730 and potted component 708.But, in the sealing structure 700 of prior art, not by for promoting any device of the Part II 728 of potted component 708 to carry out the distal second portion 728 near containment member 710 of bearing seal element 708, so that Part II 728 is resisted against a part for end face 506. The compression tube 726 of the second pressure apparatus 722 kept by the groove 714 of keeper 712 has the sealing end adjacent with the Part II 728 of potted component 708, and this sealing end can not expand. Therefore, enough axial forces can not be applied on the Part II 728 of potted component 708 by compression tube 726 along the direction towards the first rotating cylinder, and the Part II 728 of potted component 708 is not resisted against or not fully against in end face. Thus, the paper pulp being positioned at the region of containment member 710 and potted component 708 can easily force the Part II 728 of potted component 708 to leave end face 506, and can wedge or be stuck in when drum rotation between potted component 708 and end face 506. When medium can through out-of-date between potted component 708 and end face 506, jammed paper pulp can cause pulp suspension and/or filter liquor leakage. Jammed paper pulp also can make containment member 710 misplace, and this will also result in pulp suspension and/or filter liquor leakage. Jammed paper pulp also can cause on rotating rotating cylinder, the abrasion of the end ring of such as rotating cylinder and containment member 710 and potted component 708 increases. The abrasion of the leakage of pulp suspension and/or filter liquor and sealing member and rotating cylinder can affect the pulp processing in dehydration equipment. If additionally, have impact on sealing function, then can not keep seal gap or space in pressure, this can affect/deteriorate dewatering efficiency.
By the sealing structure 500 according to the present invention, A promotes the Part II 528 of potted component 508 fully towards end face 506 vertically, so that the Part II 528 of potted component 508 is fully against in end face 506. , it does not have paper pulp or only less amount of paper pulp are allowed to enter between the Part II 528 of end face and potted component 508, and do not have paper pulp to be stuck between the two, or the amount of jammed paper pulp is greatly decreased therefore. Therefore, the leakage of pulp suspension and/or filter liquor and the abrasion to rotating rotating cylinder 102 and potted component 508 and containment member 510 it are effectively prevented from by the sealing structure 500 according to the present invention.
The present invention should be not considered as being confined to shown embodiment, but can be modified in many ways by those skilled in the art and change, without deviating from the scope of the appended claims.
Claims (14)
1. the sealing structure (500) for carrying out sealing between the first rotating cylinder (102) and end shield mould component (210) in the equipment being included in for processing paper pulp, described first rotating cylinder can rotate relative to described end shield mould component and described sealing structure around the first pivot center (107), and described first rotating cylinder is provided with permeable outer surface (106), described outer surface is axially extending between the first end (503) and second end of described first rotating cylinder, and described first rotating cylinder is at least provided with end face (506) at end, described sealing structure includes
Containment member (510),
First pressure apparatus (516), described first pressure apparatus is for forcing described containment member along the direction towards described first rotating cylinder, so that described containment member is resisted against a part for described end face,
The circumferentially extending potted component (508) kept by keeper (512), and
Second pressure apparatus (522), described second pressure apparatus for forcing at least Part I (524) of described potted component along the direction towards described first rotating cylinder, so that described Part I is resisted against a part for described end face, described keeper is arranged to keep described second pressure apparatus, and the distal second portion (528) of described potted component is near described containment member, it is characterized in that, described sealing structure includes for forcing the described Part II (528) of described potted component so that described Part II is resisted against the device (545) of a part for described end face along the direction towards described first rotating cylinder, and for forcing the device (545) of the described Part II (528) of described potted component (508) to separate with described second pressure apparatus (522) along the direction towards described first rotating cylinder (102).
2. seal structure as claimed in claim 1, it is characterized in that, promote the described Part II of described potted component for forcing along the direction towards described first rotating cylinder (102) device (545) of the described Part II (528) of described potted component (508) to be arranged to along the direction towards described first rotating cylinder.
3. seal structure as claimed in claim 1 or 2, it is characterized in that, for forcing the device (545) of the described Part II (528) of described potted component (508) to include the bias unit of the described Part II for biasing described potted component towards described end face (506) along the direction towards described first rotating cylinder (102).
4. seal structure as claimed in claim 3, it is characterised in that described bias unit includes at least one compression spring (518).
5. seal structure as claimed in claim 1 or 2, it is characterized in that, for forcing the device (545) of the described Part II (528) of described potted component (508) to include the first pressure apparatus (516) along the direction towards described first rotating cylinder (102).
6. seal structure as claimed in claim 5, it is characterized in that, the described Part II (528) of described containment member (510) and described potted component (508) includes the complementary guide (536) being fitted to each other, and described guide is arranged to guide the described Part II of described potted component along the direction towards described first rotating cylinder (102).
7. seal structure as claimed in claim 6, it is characterised in that described guide (536) includes groove (538) and the protuberance (540) with described groove fit.
8. seal structure as claimed in claim 7, it is characterized in that, described containment member (510) is provided with described groove (538), and the described Part II (528) of described potted component (508) is provided with described protuberance (540).
9. seal structure as claimed in claim 1 or 2, it is characterized in that, described end face (506) is at an angle with described pivot center (107) shape, and described first pressure apparatus (516) is arranged to vertically (A) and forces described containment member (510) towards described first rotating cylinder (102), described second pressure apparatus (522) is arranged to force the Part I (524) of described potted component (508) axially towards described first rotating cylinder, and force the described Part II of described potted component towards described first rotating cylinder for forcing the device (545) of the described Part II (528) of described potted component to be arranged to vertically (A).
10. seal structure as claimed in claim 9, it is characterized in that, described containment member (510) and described potted component (508) are arranged against in a part for end face (506), and described end face is perpendicular to the described pivot center (107) of described first rotating cylinder (102).
11. seal structure as claimed in claim 1 or 2, it is characterized in that, described containment member (510) and described potted component (508) are arranged against in a part for end face (506), and described end face is in the form around the annular surface (506) of described pivot center (107) or the annular surface portion around described pivot center.
12. one kind for processing the equipment of paper pulp, described equipment includes at least one first rotating cylinder (102), at least one first rotating cylinder described can rotate and be provided with the outer surface (106) of liquid permeable around the first pivot center (107), described outer surface is axially extending between the first end (503) and second end of described first rotating cylinder, described equipment is suitable to be received in paper pulp on the described outer surface of described first rotating cylinder, and while rotating described first rotating cylinder, process the paper pulp being positioned on described outer surface, and described equipment is suitable to by least making dewatering of pulp process paper pulp, described first rotating cylinder is pivotally mounted to two end shield mould components (210, 212), described first rotating cylinder is at least provided with end face (506) at the first end (503) place, and at least one in described end shield mould component keeps for carrying out the sealing structure (500) sealed between described first rotating cylinder and the end shield mould component of correspondence, described first rotating cylinder can rotate relative to described sealing structure, it is characterized in that, described sealing structure (500) includes the feature according to any one of claim 1 to 11.
13. equipment as claimed in claim 12, it is characterized in that, described equipment includes the second rotating cylinder (104), described second rotating cylinder can rotate around pivot center (109), and it is provided with the outer surface (108) of liquid permeable, described first and second rotating cylinders (102,104) limit the press nip (112) between them, paper pulp squeezes in described press nip, and described equipment is arranged to along the rotation direction (R1, R2) of pressure roller, paper pulp is fed through described press nip.
14. equipment as claimed in claim 12, it is characterized in that, at least one in described end shield mould component (210,212) keeps for carrying out the second sealing structure (500) sealed between described second rotating cylinder (104) and the end shield mould component of correspondence, it is rotatable that described second rotating cylinder seals structure relative to described second, and described second sealing structure (500) includes the feature according to any one of claim 1 to 11.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1150290A SE535742C2 (en) | 2011-04-01 | 2011-04-01 | Sealing device for sealing between a first drum and an end casing element included in a pulp processing apparatus |
| SE1150290-3 | 2011-04-01 | ||
| PCT/SE2012/050311 WO2012134373A1 (en) | 2011-04-01 | 2012-03-21 | A sealing arrangement for sealing between a first drum and an end casing member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103547732A CN103547732A (en) | 2014-01-29 |
| CN103547732B true CN103547732B (en) | 2016-06-08 |
Family
ID=46931736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201280010207.6A Expired - Fee Related CN103547732B (en) | 2011-04-01 | 2012-03-21 | For carrying out the sealing structure sealed between the first rotating cylinder and end cover mould component |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP2694726A4 (en) |
| CN (1) | CN103547732B (en) |
| CA (1) | CA2831861A1 (en) |
| SE (1) | SE535742C2 (en) |
| WO (1) | WO2012134373A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE540211C2 (en) * | 2016-11-11 | 2018-05-02 | Valmet Oy | A pressure device for a sealing arrangement, a sealing arrangement and an apparatus for processing pulp |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3007518A (en) * | 1958-06-06 | 1961-11-07 | Forming Machine Company Of Ame | Means for preventing leakage of fluid |
| CN1545586A (en) * | 2001-08-23 | 2004-11-10 | ����ֽҵ�ɷ�����˾ | Seal at press rollers |
| CN101896665A (en) * | 2007-12-13 | 2010-11-24 | 美佐纸业股份有限公司 | Apparatus for washing and dewatering pulp |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI20001603A (en) * | 2000-07-04 | 2002-01-05 | Andritz Ahlstrom Oy | Tiivistejõrjestely |
| SE0103105L (en) * | 2001-09-19 | 2002-08-06 | Kvaerner Pulping Tech | Sealing arrangement for drum filters or filter presses as well as cuff and holding elements for one |
| SE528728C2 (en) * | 2005-06-03 | 2007-02-06 | Metso Paper Inc | Device for treating cellulose pulp |
| SE531687C2 (en) * | 2007-11-09 | 2009-07-07 | Metso Paper Inc | Method and unit for sealing adjustment in a washing device and washing device comprising sealing adjustment unit |
-
2011
- 2011-04-01 SE SE1150290A patent/SE535742C2/en not_active IP Right Cessation
-
2012
- 2012-03-21 CN CN201280010207.6A patent/CN103547732B/en not_active Expired - Fee Related
- 2012-03-21 WO PCT/SE2012/050311 patent/WO2012134373A1/en active Application Filing
- 2012-03-21 EP EP12765460.6A patent/EP2694726A4/en not_active Withdrawn
- 2012-03-21 CA CA2831861A patent/CA2831861A1/en not_active Abandoned
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3007518A (en) * | 1958-06-06 | 1961-11-07 | Forming Machine Company Of Ame | Means for preventing leakage of fluid |
| CN1545586A (en) * | 2001-08-23 | 2004-11-10 | ����ֽҵ�ɷ�����˾ | Seal at press rollers |
| CN101896665A (en) * | 2007-12-13 | 2010-11-24 | 美佐纸业股份有限公司 | Apparatus for washing and dewatering pulp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103547732A (en) | 2014-01-29 |
| SE535742C2 (en) | 2012-12-04 |
| EP2694726A4 (en) | 2014-08-27 |
| WO2012134373A1 (en) | 2012-10-04 |
| EP2694726A1 (en) | 2014-02-12 |
| SE1150290A1 (en) | 2012-10-02 |
| CA2831861A1 (en) | 2012-10-04 |
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| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: Sundsvall Applicant after: Valtra Inc. Address before: Sundsvall Applicant before: Metso Paper Machinery (Sweden) Co., Ltd. |
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