EP3330068A1 - Device for dewatering bulk or flowable material - Google Patents
Device for dewatering bulk or flowable material Download PDFInfo
- Publication number
- EP3330068A1 EP3330068A1 EP17199701.8A EP17199701A EP3330068A1 EP 3330068 A1 EP3330068 A1 EP 3330068A1 EP 17199701 A EP17199701 A EP 17199701A EP 3330068 A1 EP3330068 A1 EP 3330068A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- segments
- openings
- jacket tube
- segment
- housing
- 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
- 239000000463 material Substances 0.000 title claims abstract description 33
- 230000009969 flowable effect Effects 0.000 title claims description 4
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 239000002023 wood Substances 0.000 claims abstract description 6
- 238000009418 renovation Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 4
- 238000005553 drilling Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 241000237858 Gastropoda Species 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000010006 flight Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000009419 refurbishment Methods 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/12—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing
- B30B9/124—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using pressing worms or screws co-operating with a permeable casing using a rotatable and axially movable screw
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/26—Permeable casings or strainers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N1/00—Pretreatment of moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/18—Auxiliary operations, e.g. preheating, humidifying, cutting-off
-
- 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
- D21C7/00—Digesters
- D21C7/06—Feeding devices
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B5/00—Drying solid materials or objects by processes not involving the application of heat
- F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/086—Presses with means for extracting or introducing gases or liquids in the mat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B2200/00—Drying processes and machines for solid materials characterised by the specific requirements of the drying good
- F26B2200/24—Wood particles, e.g. shavings, cuttings, saw dust
Definitions
- the invention relates to a device for dewatering pourable or free-flowing feed material, for example wood chips, by the compression, with a housing with a jacket tube in which a shaft rotates with circumferentially circumferential coils about a rotation axis, wherein the feed material is transported through the housing and compacted and the Pressat is passed through openings in the jacket tube from the device and wherein an inner tube is provided.
- a device for dewatering pourable or free-flowing feed material for example wood chips
- a housing with a jacket tube in which a shaft rotates with circumferentially circumferential coils about a rotation axis, wherein the feed material is transported through the housing and compacted and the Pressat is passed through openings in the jacket tube from the device and wherein an inner tube is provided.
- Such devices are for example from the DE 20 2007 007 038 U1 known, these devices usually have a task device, for example in the form of a shaft.
- Special versions are used to supply wood chips in a pulp
- the invention is therefore characterized in that the inner tube is constructed of segments having openings, the segments resting with their outer surface directly on the inner surface of the jacket tube and the openings of the segments cover the openings of the jacket tube, wherein the openings of the segments a smaller Have cross-section, as the openings of the jacket tube and each opening of the segments is associated with an opening of the jacket tube, wherein the segments made of wear-resistant cast or sintered material.
- jacket tube and segments can be made of different materials, whereby the jacket tube can absorb the forces and the segments can be made of a hard, brittle and thus wear-resistant material. Due to the design as a cast or sintered part, the segments can remain largely unprocessed. It thus eliminates a large-scale, cost-intensive processing of both the outer and the inner surface. Also, the openings can be mitgegossen, making a subsequent, complex, especially also cutting drilling is unnecessary. This also makes it possible to use harder materials that can no longer be processed by machining processes. By matching the openings of the segments with the openings of the jacket tube optimal drainage is achieved.
- a favorable embodiment of the invention is characterized in that the jacket tube is cylindrical, and it may alternatively be conical.
- the device can be conveniently adapted to the needs for production and the required screw.
- a favorable development of the invention is characterized in that the inner tube in the circumferential direction consists of at least 4, preferably 6 to 8 segments. This can leave little worn area and only more worn areas can be exchanged.
- An advantageous embodiment of the invention is characterized in that the inner tube in the longitudinal direction, corresponding to the direction of the axis of rotation consists of at least 2, preferably 3-4, up to 6 segments.
- the assembly much easier, on the other hand can leave little worn area and only more worn areas, especially in the field of high compression at the end, be replaced.
- a favorable development of the invention is characterized in that the openings of the segments expand conically in the direction of the outer surface. As a result, blockages of the openings can be largely avoided.
- a further favorable embodiment of the invention is characterized in that the segments each have a groove in the longitudinal direction. These grooves can be used specifically to prevent Mitrotation of the feed.
- An alternative embodiment of the invention is characterized in that the segments each have a particular integrated bar in the longitudinal direction. These strips can also be used to prevent Mitrotation of the feed.
- the invention also relates to a segment of an inner tube for a device for dewatering pourable or flowable feed material, for example wood chips, with a housing having a jacket tube with openings, in which the inner tube is provided. It is characterized in that the segment consists of wear-resistant cast or sintered material, wherein openings are provided with a smaller cross-section than the openings of the jacket tube, wherein the openings widen conically towards the outer surface.
- the execution of cast or sintered material allows a cost-effective production and allows to dispense with further processing.
- the drainage openings can also be cast, whereby costly drilling can be omitted.
- a dewatering device 1 with a plug screw 2 and a drive 3 is shown.
- the drive 3 has a drive motor 4, a transmission 5, a clutch 6, for example a high-speed clutch, a further clutch 7, for example a low-speed clutch, and protective devices 8.
- the plug screw 2 consists of a feed chute 9, the housing 10 with a discharge chamber 11, and the screw 12 with coils 13.
- the housing 10 may be cylindrical as shown, but also tapered designed.
- the housing 10 of the plug screw 2 is attached to a container 14 which, in the case of use in the pulp industry, may be a digester, the container generally having a different pressure rating, but the materials may also have a different state of aggregation.
- the plug screw then also serves as a pressure lock.
- the given in the feed chute Good eg wood chips, but also annual plants, straw, bagasse or the like, is guided by the screw flights 13 of the screw 12 in the housing 10 and pressed through this, with liquid, usually water which can also be mixed with chemicals , flows into the drain chamber 11 and discharged therefrom and optionally recycled.
- liquid usually water which can also be mixed with chemicals
- MSD a highly compressed material plug is produced, which absorbs the impregnation chemicals in this case during the relaxation.
- Due to the high compression of the feed occurs on the inside of the housing 10 high wear, so that these housings must be renewed frequently or armored.
- One possibility is to expand the housing and make it operational again in a workshop by build-up welding and subsequent mechanical processing. Thus, this part is the plant operator for a long time not as an emergency spare part available.
- replaceable wear cups can be used. However, these must be made very accurately, often resulting in problems with the fit.
- Fig. 2 shows a housing 10 according to the invention, which consists of an upper half-shell 15 and a lower half-shell 16. These have drainage openings 17, which can be arranged in groups as shown.
- the half-shells 15, 16 have at their ends flanges 18 and 18 ', with which the housing 10 are fastened on one side to the feed chute 9 and on the other side to the container 14.
- the two half-shells 15, 16 are held together with a number of screws 19.
- Within the half-shells 15, 16 segments 21, 22 are arranged. Other screws 20 are used to attach these segments 21, 22 on the housing 10. All segments 21, 22 together form an inner tube in the housing 10.
- All segments 21, 22 together form an inner tube in the housing 10.
- the outer surface of the segments 21, 22 lies directly, ie without a gap, on the inner surface of the half-shells 15, 16 of the housing 10.
- Fig. 3 the lower half shell 16 is shown. It has flanges 18, 18 'at the ends.
- the individual segments 21, 22 have openings 23 for fastening by means of screws 20. It can be seen that different segments can be used here.
- the segments 21 have over their length a groove 24, which serves to prevent substances from co-rotating.
- the number of segments 21 with groove 24 and segments 22 is selected on the basis of the dewatering behavior, but also the caking and thus entrainment property of the feed material. The use of segments 21 and 22 thus makes it possible to adjust the drainage and entrainment of the feedstock accordingly.
- segments 22 ' see FIG Fig.
- each opening 25 a segment 21, 22 is associated with an opening 17 in a half-shell 15, 16 of the housing 10. This is achieved, inter alia, by the fastening by means of screws 20.
- the screws 20 are introduced from the inside, ie the interior of the cylinder formed by the segments 21, 22 and screwed on the outside by means of nuts.
- the heads of the screws 20 are, for example, elongated with a spherical cap, so that they are always in the correct position in the correspondingly shaped openings 23.
- the screws 20 may also in the heads, which are arranged on the inner (cylinder) surface of the segments 21, 22, for example, depressions such as slots, which then form a plane by the wear of the segments and the raised parts of the screw heads and can be used as wear marks that provide an indication of the required replacement of the segments 21, 22.
- the segments 21, 22 are molded of wear-resistant material, whereby all openings 25 can be made in a simple manner without subsequent mechanical processing.
- the openings 25 can also be made very simple conical and do not need to be designed as stepped holes, which require a frequent tool change during manufacture.
- the segments can also be sintered from wear-resistant material, which also offers the possibility to incorporate the openings 25 in a simple manner with the same.
- contact surfaces 26 are created only on the longitudinal sides of the edges of the segments 21, 22 in the vicinity of the ends of the segments 21, which must be slightly processed to ensure an exact fit of the individual segments 21, 22 .
- By arranging a plurality of segments 21, 22 in the longitudinal direction is also possible to replace only the segments with the greatest wear. With this type of inner lining of the housing repair can be made easily and in a short time on site.
- Fig. 4 shows the example of a segment 21 easy installation.
- three segments 21 are shown with grooves 24 on a lower half shell 16 in the circumference, resulting in 6 segments over the entire circumference of the housing 10.
- the holes 25 which are arranged above the corresponding holes 17 of the half-shell 16.
- the fastening screws 20 and the machined contact surfaces 26 can be seen.
- the segments 21 (and also 22) are not processed.
- the outer surfaces and the inner surfaces are not processed, as well as the grooves 24 can be cast.
- Fig. 5 6 and Fig. 7 are inventive segments 21, 22 and 22 'are shown. These have openings 23 for the fastening screws 20, drainage openings 25 and contact surfaces 26.
- the difference between the segments 21 and 22 is that the segment 21 additionally has a groove 24 which is intended to prevent co-rotation of the feed material.
- Fig. 7 a variant of a segment 22 'is shown, in which a bar 27 is provided instead of a groove 24. This bar should also prevent the co-rotation of the feed. In a cast or sintered part, this bar can be well integrated and finished in one piece. Thus, disadvantages can be avoided by screwed strips. Also then no reworking of the segment by eg machining processes (grinding a groove, drilling of screw holes) is required, which also harder materials can be used.
- the invention is not limited by the drawings, are shown in the slightly conical housing. It can e.g. also cylindrical housing and thus cylindrical segments are used. Also, with larger diameters, the housing could consist of three or four parts.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Molecular Biology (AREA)
- Manufacturing & Machinery (AREA)
- Health & Medical Sciences (AREA)
- Paper (AREA)
- Filtration Of Liquid (AREA)
- Screw Conveyors (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
- Processing Of Solid Wastes (AREA)
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung zum Entwässern von schüttfähigem oder fließfähigem Aufgabegut, beispielsweise Holzhackschnitzel, durch dessen Verdichtung mit einem Gehäuse (10) mit einem Mantelrohr (15, 16), in dem eine Welle mit umfangseitig umlaufenden Wendeln (13) um eine Rotationsachse rotiert, wobei das Aufgabegut durch das Gehäuse (10) transportiert und verdichtet wird und das Pressat durch Öffnungen (17) im Mantelrohr (15, 16) aus der Vorrichtung geleitet wird und wobei ein Innenrohr vorgesehen ist. Sie ist vornehmlich dadurch gekennzeichnet, dass das Innenrohr aus Segmenten (21, 22) aufgebaut ist, die Öffnungen (25) aufweisen, wobei die Segmente (21, 22) mit ihrer Außenfläche direkt an der Innenfläche des Mantelrohres (15, 16) aufliegen und die Öffnungen (25) der Segmente (21, 22) die Öffnungen (17) des Mantelrohrs (15,16) überdecken, wobei die Segmente (21, 22) aus verschleißfestem Guss-oder Sintermaterial bestehen. Die Erfindung betrifft weiters ein Segment eines Innenrohrs für eine obige Vorrichtung, die dadurch gekennzeichnet ist, dass das Segment (21, 22) aus verschleißfestem aus Guss- oder Sintermaterial besteht. Mit einer derartigen Vorrichtung bzw. Segment können günstige Sanierungen von verschlissenen Teilen bei Entwässerungsvorrichtungen erzielt werden. The invention relates to a device for dewatering pourable or free-flowing feed material, for example wood chips, by its compression with a housing (10) having a jacket tube (15, 16) in which a shaft with circumferentially encircling coils (13) rotates about an axis of rotation. wherein the feed material is transported through the housing (10) and compressed and the Pressat is passed through openings (17) in the jacket tube (15, 16) from the device and wherein an inner tube is provided. It is primarily characterized in that the inner tube of segments (21, 22) is constructed, the openings (25), wherein the segments (21, 22) with its outer surface directly on the inner surface of the jacket tube (15, 16) rest and the openings (25) of the segments (21, 22) cover the openings (17) of the jacket tube (15, 16), the segments (21, 22) being made of wear-resistant cast or sintered material. The invention further relates to a segment of an inner tube for an above device, which is characterized in that the segment (21, 22) consists of wear-resistant cast or sintered material. With such a device or segment cheap renovations of worn parts can be achieved in drainage devices.
Description
Die Erfindung betrifft eine Vorrichtung zum Entwässern von schüttfähigem oder fließfähigem Aufgabegut, beispielsweise Holzhackschnitzel, durch dessen Verdichtung, mit einem Gehäuse mit einem Mantelrohr, in dem eine Welle mit umfangseitig umlaufenden Wendeln um eine Rotationsachse rotiert, wobei das Aufgabegut durch das Gehäuse transportiert und verdichtet wird und das Pressat durch Öffnungen im Mantelrohr aus der Vorrichtung geleitet wird und wobei ein Innenrohr vorgesehen ist.
Derartige Vorrichtungen sind z.B. aus der
Ziel der Erfindung ist es eine Vorrichtung anzugeben, die deutlich kostengünstiger ist und die obigen Nachteile vermeidet.
Die Erfindung ist daher dadurch gekennzeichnet, dass das Innenrohr aus Segmenten aufgebaut ist, die Öffnungen aufweisen, wobei die Segmente mit ihrer Außenfläche direkt an der Innenfläche des Mantelrohres aufliegen und die Öffnungen der Segmente die Öffnungen des Mantelrohrs überdecken, wobei die Öffnungen der Segmente einen kleineren Querschnitt aufweisen, als die Öffnungen des Mantelrohres und jeder Öffnung der Segmente eine Öffnung des Mantelrohrs zugeordnet ist, wobei die Segmente aus verschleißfestem Guss-oder Sintermaterial bestehen.
Durch den Aufbau des Innenrohrs aus Segmenten werden die austauschbaren Teile kleiner und können leichter transportiert werden. Durch das direkte Aufliegen der Segmente an der Innenfläche des Mantelrohres werden diese Teile vollflächig unterstützt und können somit auch mit sehr geringen Wandstärken gefertigt werden. Auch können Mantelrohr und Segmente aus unterschiedlichen Materialien gefertigt werden, wodurch das Mantelrohr die Kräfte aufnehmen kann und die Segmente aus einem harten, spröden und damit verschleißfestem Material sein können. Durch die Ausführung als Guss-oder Sinterteil können die Segmente weitestgehend unbearbeitet bleiben. Es entfällt somit eine großflächige, kostenintensive Bearbeitung sowohl der Außen- als auch der Innenfläche. Auch können die Öffnungen mitgegossen werden, wodurch ein nachträgliches, aufwändiges, insbesondere auch spanabhebendes Bohren unnötig wird. Dadurch wird es auch möglich, härtere Materialien einzusetzen, die mit spanabhebenden Verfahren nicht mehr bearbeitet werden können. Durch die Übereinstimmung der Öffnungen der Segmente mit den Öffnungen des Mantelrohres wird eine optimale Entwässerung erzielt.The invention relates to a device for dewatering pourable or free-flowing feed material, for example wood chips, by the compression, with a housing with a jacket tube in which a shaft rotates with circumferentially circumferential coils about a rotation axis, wherein the feed material is transported through the housing and compacted and the Pressat is passed through openings in the jacket tube from the device and wherein an inner tube is provided.
Such devices are for example from the
The aim of the invention is to provide a device which is significantly cheaper and avoids the above disadvantages.
The invention is therefore characterized in that the inner tube is constructed of segments having openings, the segments resting with their outer surface directly on the inner surface of the jacket tube and the openings of the segments cover the openings of the jacket tube, wherein the openings of the segments a smaller Have cross-section, as the openings of the jacket tube and each opening of the segments is associated with an opening of the jacket tube, wherein the segments made of wear-resistant cast or sintered material.
By constructing the inner tube of segments, the exchangeable parts become smaller and can be transported more easily. Due to the direct contact of the segments on the inner surface of the jacket tube, these parts are fully supported and can thus be manufactured with very low wall thicknesses. Also jacket tube and segments can be made of different materials, whereby the jacket tube can absorb the forces and the segments can be made of a hard, brittle and thus wear-resistant material. Due to the design as a cast or sintered part, the segments can remain largely unprocessed. It thus eliminates a large-scale, cost-intensive processing of both the outer and the inner surface. Also, the openings can be mitgegossen, making a subsequent, complex, especially also cutting drilling is unnecessary. This also makes it possible to use harder materials that can no longer be processed by machining processes. By matching the openings of the segments with the openings of the jacket tube optimal drainage is achieved.
Eine günstige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass das Mantelrohr zylindrisch ist, wobei es alternativ konisch sein kann. So kann die Vorrichtung günstig an die Bedürfnisse für die Produktion und die dafür erforderliche Schnecke angepasst werden.A favorable embodiment of the invention is characterized in that the jacket tube is cylindrical, and it may alternatively be conical. Thus, the device can be conveniently adapted to the needs for production and the required screw.
Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass das Innenrohr in Umfangsrichtung aus mindestens 4, vorzugsweise 6 - 8 Segmenten besteht. Dadurch können wenig verschlissene Bereich belassen und nur stärker verschlissene Bereiche getauscht werden.A favorable development of the invention is characterized in that the inner tube in the circumferential direction consists of at least 4, preferably 6 to 8 segments. This can leave little worn area and only more worn areas can be exchanged.
Eine vorteilhafte Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass das Innenrohr in Längsrichtung, entsprechend der Richtung der Rotationsachse aus mindestens 2, vorzugsweise 3 - 4 bis zu 6 Segmenten besteht. Damit wird einerseits die Montage wesentlich erleichtert, andererseits können wenig verschlissene Bereich belassen und nur stärker verschlissene Bereiche, speziell im Bereich der hohen Verdichtung am Ende, getauscht werden.An advantageous embodiment of the invention is characterized in that the inner tube in the longitudinal direction, corresponding to the direction of the axis of rotation consists of at least 2, preferably 3-4, up to 6 segments. Thus, on the one hand, the assembly much easier, on the other hand can leave little worn area and only more worn areas, especially in the field of high compression at the end, be replaced.
Eine günstige Weiterbildung der Erfindung ist dadurch gekennzeichnet, dass sich die Öffnungen der Segmente konisch in Richtung Außenfläche erweitern. Dadurch können Verstopfungen der Öffnungen weitgehend vermieden werden.A favorable development of the invention is characterized in that the openings of the segments expand conically in the direction of the outer surface. As a result, blockages of the openings can be largely avoided.
Eine weitere günstige Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass die Segmente jeweils eine Nut in Längsrichtung aufweisen. Diese Nuten können speziell zur Verhinderung der Mitrotation des Aufgabegutes eingesetzt werden.A further favorable embodiment of the invention is characterized in that the segments each have a groove in the longitudinal direction. These grooves can be used specifically to prevent Mitrotation of the feed.
Eine alternative Ausgestaltung der Erfindung ist dadurch gekennzeichnet, dass die Segmente jeweils eine insbesondere integrierte Leiste in Längsrichtung aufweisen. Diese Leisten können ebenfalls zur Verhinderung der Mitrotation des Aufgabegutes eingesetzt werden.An alternative embodiment of the invention is characterized in that the segments each have a particular integrated bar in the longitudinal direction. These strips can also be used to prevent Mitrotation of the feed.
Die Erfindung betrifft auch ein Segment eines Innenrohrs für eine Vorrichtung zum Entwässern von schüttfähigem oder fließfähigem Aufgabegut, beispielsweise Holzhackschnitzel, mit einem Gehäuse mit einem Mantelrohr mit Öffnungen, in dem das Innenrohr vorgesehen ist. Sie ist dadurch gekennzeichnet, dass das Segment aus verschleißfestem Guss- oder Sintermaterial besteht, wobei Öffnungen mit einem kleineren Querschnitt vorgesehen sind, als die Öffnungen des Mantelrohres, wobei sich die Öffnungen konisch in Richtung Außenfläche erweitern. Speziell die Ausführung aus Guss- oder Sintermaterial ermöglicht eine kostengünstige Fertigung und erlaubt auf weitere Bearbeitungen zu verzichten. Dadurch können auch die Entwässerungsöffnungen mitgegossen werden, wodurch aufwändiges Bohren entfallen kann.The invention also relates to a segment of an inner tube for a device for dewatering pourable or flowable feed material, for example wood chips, with a housing having a jacket tube with openings, in which the inner tube is provided. It is characterized in that the segment consists of wear-resistant cast or sintered material, wherein openings are provided with a smaller cross-section than the openings of the jacket tube, wherein the openings widen conically towards the outer surface. Especially the execution of cast or sintered material allows a cost-effective production and allows to dispense with further processing. As a result, the drainage openings can also be cast, whereby costly drilling can be omitted.
Die Erfindung wird nun anhand der Zeichnungen beispielhaft beschrieben, wobei
-
Fig. 1 den grundsätzlichen Aufbau einer gattungsmäßigen Entwässerungsvorrichtung, -
Fig. 2 das Gehäuse einer erfindungsgemäßen Vorrichtung mit Innenrohr, -
Fig. 3 eine Halbschale der erfindungsgemäßen Vorrichtung, -
Fig. 4 eine Halbschale mit Darstellung der erfindungsgemäßen Segmente und deren Befestigung -
Fig. 5 eine Variante eines erfindungsgemäßen Segments, -
Fig. 6 eine weitere Variante eines erfindungsgemäßen Segments -
Fig. 7 eine zusätzliche Variante eines erfindungsgemäßen Segments
darstellt.
-
Fig. 1 the basic structure of a generic dewatering device, -
Fig. 2 the housing of a device according to the invention with inner tube, -
Fig. 3 a half-shell of the device according to the invention, -
Fig. 4 a half-shell showing the segments of the invention and their attachment -
Fig. 5 a variant of a segment according to the invention, -
Fig. 6 a further variant of a segment according to the invention -
Fig. 7 an additional variant of a segment according to the invention
represents.
In
In
Um auch weitere mechanische Bearbeitungen einzusparen werden lediglich an den Längsseiten der Kanten der Segmente 21, 22 in der Nähe der Enden der Segmente 21, 22 Kontaktflächen 26 geschaffen, die geringfügig bearbeitet werden müssen, um einen exakten Sitz der einzelnen Segmente 21, 22 zu gewährleisten. Durch die Anordnung mehrerer Segmente 21, 22 in Längsrichtung wird auch ermöglicht, lediglich die Segmente mit dem größten Verschleiß auszutauschen. Mit dieser Art der inneren Auskleidung des Gehäuses kann eine Reparatur leicht und in kurzer Zeit vor Ort vorgenommen werden.In order to save even further mechanical processing, contact surfaces 26 are created only on the longitudinal sides of the edges of the
In
Die Erfindung ist nicht durch die Zeichnungen beschränkt, in der leicht konische Gehäuse dargestellt sind. Es können z.B. auch zylindrische Gehäuse und damit zylindrische Segmente eingesetzt werden. Auch könnte bei größeren Durchmessern das Gehäuse aus drei oder vier Teilen bestehen.The invention is not limited by the drawings, are shown in the slightly conical housing. It can e.g. also cylindrical housing and thus cylindrical segments are used. Also, with larger diameters, the housing could consist of three or four parts.
Claims (12)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA51097/2016A AT518983B1 (en) | 2016-12-02 | 2016-12-02 | DEVICE FOR WASHING DEEP-WATERED OR FLUIDABLE SUPPLY MATERIAL |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3330068A1 true EP3330068A1 (en) | 2018-06-06 |
EP3330068B1 EP3330068B1 (en) | 2024-01-03 |
EP3330068C0 EP3330068C0 (en) | 2024-01-03 |
Family
ID=60201947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17199701.8A Active EP3330068B1 (en) | 2016-12-02 | 2017-11-02 | Device for dewatering bulk or flowable material |
Country Status (7)
Country | Link |
---|---|
US (1) | US10870250B2 (en) |
EP (1) | EP3330068B1 (en) |
CN (1) | CN108204715B (en) |
AT (1) | AT518983B1 (en) |
CA (1) | CA2987123C (en) |
EA (1) | EA036223B1 (en) |
MY (1) | MY190385A (en) |
Cited By (1)
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EP3896217A1 (en) * | 2020-04-17 | 2021-10-20 | Cellwood Machinery AB | Apparatus and method for processing a suspension comprising organic material and liquid |
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AT523264B1 (en) * | 2020-03-16 | 2021-07-15 | Andritz Ag Maschf | Process for the production of a sieve body and sieve |
CN112611170A (en) * | 2020-12-16 | 2021-04-06 | 苏州嘉诺环境工程有限公司 | Dewatering equipment |
CN113442502A (en) * | 2021-08-10 | 2021-09-28 | 哈尔滨重齿传动设备有限公司 | Vertical briquetting machine |
CN113983764A (en) * | 2021-11-22 | 2022-01-28 | 上海牧融机械设备有限公司 | Spiral secondary extrusion dehydrator |
DK181177B1 (en) * | 2021-11-29 | 2023-03-27 | Haarslev Ind A/S | Cage opening assistant |
CN114198988B (en) * | 2021-12-29 | 2022-10-25 | 双胞胎(集团)股份有限公司 | A dewatering system for domestic animal feed ingredient |
CN114960252A (en) * | 2022-06-21 | 2022-08-30 | 汶瑞机械(山东)有限公司 | Line pressure adjusting mechanism for roller of double-roller pulp washer |
CN116080128B (en) * | 2023-04-10 | 2023-06-23 | 蓬莱京鲁渔业有限公司 | Fish meal processing grinder for fodder |
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- 2017-11-30 CA CA2987123A patent/CA2987123C/en active Active
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WO2021209447A1 (en) * | 2020-04-17 | 2021-10-21 | Cellwood Machinery Ab | Apparatus and method for processing a suspension comprising organic material and liquid |
Also Published As
Publication number | Publication date |
---|---|
EA201792416A1 (en) | 2018-08-31 |
EP3330068B1 (en) | 2024-01-03 |
BR102017024478A2 (en) | 2018-06-19 |
AT518983A4 (en) | 2018-03-15 |
MY190385A (en) | 2022-04-20 |
CN108204715B (en) | 2021-08-17 |
US10870250B2 (en) | 2020-12-22 |
EP3330068C0 (en) | 2024-01-03 |
AT518983B1 (en) | 2018-03-15 |
EA036223B1 (en) | 2020-10-15 |
US20180154599A1 (en) | 2018-06-07 |
CA2987123A1 (en) | 2018-06-02 |
CA2987123C (en) | 2023-08-08 |
CN108204715A (en) | 2018-06-26 |
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