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EP1992894A1 - Dispositif de séchage par compactage de matériaux de chargement fluides ou en vrac - Google Patents

Dispositif de séchage par compactage de matériaux de chargement fluides ou en vrac Download PDF

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Publication number
EP1992894A1
EP1992894A1 EP08008475A EP08008475A EP1992894A1 EP 1992894 A1 EP1992894 A1 EP 1992894A1 EP 08008475 A EP08008475 A EP 08008475A EP 08008475 A EP08008475 A EP 08008475A EP 1992894 A1 EP1992894 A1 EP 1992894A1
Authority
EP
European Patent Office
Prior art keywords
tube
inner tube
passages
radial
jacket
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
Application number
EP08008475A
Other languages
German (de)
English (en)
Other versions
EP1992894B1 (fr
Inventor
Hartmut Pallmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pallmann Maschinenfabrik GmbH and Co KG
Original Assignee
Pallmann Maschinenfabrik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38622652&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1992894(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Pallmann Maschinenfabrik GmbH and Co KG filed Critical Pallmann Maschinenfabrik GmbH and Co KG
Priority to PL08008475T priority Critical patent/PL1992894T3/pl
Publication of EP1992894A1 publication Critical patent/EP1992894A1/fr
Application granted granted Critical
Publication of EP1992894B1 publication Critical patent/EP1992894B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a device for dewatering pourable or flowable feed material by its compression according to the preamble of patent claim 1.
  • a starting material is usually processed in the course of its successive processing to the desired end product. This is usually done gradually during its passage through various processing stations.
  • An example of such a type of processing is the processing of lignocellulosic material, such as wood, annual plants, straw, bagasse and the like.
  • the processing stations undergo pre-shredding, washing, dewatering, pre-steaming, dewatering, cooking, defibering, drying and separating.
  • the fibers thus obtained can then be used for pulp production in papermaking or as wood fibers in the production of wood fiber products, such as MDF products.
  • the invention relates to a device with which the feed material is drained by its compression.
  • a device with which the feed material is drained by its compression.
  • such a device may be arranged, for example, as a stuffing screw in front of a digester, with the function to allow the entry of the free-flowing feed into a subsequent pressurized system while dewatering the feed.
  • the basic structure of such a device provides a housing with a jacket tube, in which rotates a occupied with a rotating coil worm shaft, which transports the still loose feed material in cooperation with axially aligned conveyor strips to the opposite end of the jacket tube.
  • the compaction of the feed also serves to create a high density plug of material which seals the inlet opening from the pressurized system of the digester.
  • the invention has for its object to further develop generic devices in terms of their cost-effectiveness.
  • the basic idea of the invention is to make the inner lateral surface of the device simple and quickly replaceable, at least in the heavily stressed areas. This is achieved by separating the functional components into those with a statically supporting function and those with a drainage function.
  • the supporting function takes over the massive housing or casing tube of the device, which is provided with respect to the nature of the feed material with relatively large passages.
  • the dewatering function that is the separation of the feed from the crushed water, comes to the relatively slender inner tube, which at the Supported inside circumference of the casing tube and has in the region of the passages adapted to the nature of the feed passages for the crushed water.
  • This division of the functions allows a targeted adaptation of a device according to the invention both to static and procedural requirements with the aim of achieving an optimization of both the structural design and the quality of the processing.
  • the inner shell surface forming parts are very slim, they can be made without high increase in the cost of high-strength material and therefore counteract too rapid wear. As a result of longer machine service life and maintenance intervals, this results in an additional economic advantage for the operators of devices according to the invention.
  • the surface of the openings in the inner tube is about 20% to 40%, preferably 25% to 30% of the cross-sectional area of the passages in the jacket tube and plug tube.
  • the surface of the openings in the inner tube is about 20% to 40%, preferably 25% to 30% of the cross-sectional area of the passages in the jacket tube and plug tube.
  • passage openings with a diameter of 2 mm to 10 mm, preferably from 4 mm to 8 mm, have proven to be suitable. However, other diameter ranges are also within the scope of the invention.
  • the passage openings in such a way that they expand in the direction of passage, which can be done both conically and in stages. In this way, the flow resistance decreases radially outwardly, which is conducive to the discharge of the squeeze and prevents blockages of the passages.
  • the device In order to minimize wear, it is sufficient for the device to be designed according to the invention only in the end region of the jacket tube or in the area of the plug tube, since there are the regions of greatest compression and thus of the greatest wear.
  • the compression in the region of the plug tube can be influenced in a targeted manner by a corresponding pin shape.
  • the compression is increased by a conically widening in the conveying direction bearing pin in Pfropfenrohr.
  • a gradual relaxation of the feed material can be achieved while a cylindrical bearing journal behaves neutral.
  • the end of the jacket tube as an independent component in the form of a plug tube, which facilitates maintenance and repair work.
  • the inner tube is screwed to the jacket tube or plug tube to prevent relative movements of the two parts to each other.
  • An alternative which is advantageous with regard to rapid installation or replacement of the inner tube provides positive-locking means which, while permitting axial insertion of the inner tube, block twisting relative to the outer tube. In the axial direction, movement of the inner tube relative to the jacket tube is prevented by stops.
  • a device in the form of a plug screw 1 with a housing 3 arranged around a horizontal axis of rotation 2.
  • the housing 3 comprises a cylindrical feeding area 4 into which a feed hopper 5 opens from above.
  • the front-side housing closure 6 of the housing 3 is equipped as a shaft bushing 7 with bearings for a drive shaft 8 running along the axis of rotation 2.
  • the drive shaft 8 leads with its lying outside of the housing 3 end to a rotary drive, not shown.
  • a conically tapered jacket tube 9 which is secured via annular flanges coaxially on the cylindrical task area 4.
  • a continuous conveying and compression chamber 10 At the conveying and compression chamber 10 defining inner surfaces can be seen approximately axially aligned feed grooves 11, which are distributed uniformly over the inner circumference.
  • radial dewatering openings 12 are additionally introduced, via which the pinch water emerging in the course of compression is derived from the feed material.
  • the drainage pipe 9 is peripherally surrounded by a cylindrical plate 13, which forms in this way a sump for the 38 designated squirting water.
  • a cylindrical plate 13 which forms in this way a sump for the 38 designated squirting water.
  • the drive shaft 8 along the circumference of a helix 16 rotates helically.
  • the outer diameter of the helix 16 decreases and acts to ensure the axial transport of the feed with the conveyor belts 11 on the inner circumference of the conveying and compression chamber 10 together.
  • the end of the drive shaft 8 forms a bearing pin 17 which is surrounded by a so-called plug tube 18.
  • the plug tube 18 represents the axial extension of the jacket tube 9 and has to accomplish the task of a tight and pressure-resistant connection to the downstream areas of the process technology, for example, operated with an overpressure digester.
  • the connection is formed by high-density, a graft-forming feed material, which also represents the radial bearing for the bearing pin 17.
  • the plug tube 18 has a coaxial to the rotation axis 2, formed from two half-shells cylindrical pipe section 19, at both ends of which an annular flange 20 and 21 is integrally formed.
  • the annular flanges 20 and 21 serve on the one hand for connection of the plug tube 17 to an attached at the end of the jacket tube 9 annular flange and on the other hand to provide a mounting option for a connecting line 22 for forwarding the compacted feedstock to subsequent processing stations.
  • the annular flanges 20 and 21 are peripherally surrounded by two half-shell-shaped troughs 23 and 24, which are assembled into a cylindrical structure.
  • Each of the trays 23 and 24 comprises two semicircular support profiles 25, on the outer circumference of a circular plate 26 is attached.
  • the trays 23 and 24 are assembled to form a hollow cylinder which completely surrounds the plug tube 18 in the finished state and is absorbed in the squish 38 from the feed material.
  • an outlet 28 for discharging the collected squeeze water 38.
  • the pipe section 19 of the plug pipe 18 has radial passages 29 of rectangular shape, which are arranged distributed in two axially staggered radial planes over the circumference, so that in this area results in a loch-like structure in a small space.
  • the passages 29 associated with the end of the jacket tube 9 can also narrow outwards over the wall thickness of the tube section 19.
  • the pipe section 19 is turned out on its inner circumference, so that a stepped inner diameter enlargement results.
  • This serves as a receptacle for an inner tube 30 which is axially inserted into the plug tube 18 in this way until it finds a stop with its end face on the annular shoulder 31 formed by the step.
  • the inner tube 30 terminates flush with the end face of the plug tube 18 at the other end.
  • the inner tube 30 can be assembled with advantages for a quick assembly and disassembly both one-piece and two half-shells and consists of a wear-resistant material.
  • the inner tube 30 has a plurality of drainage regions 34 which are distributed over the circumference congruent to the passages 29.
  • Each drainage region 34 has a multiplicity of sieve openings 35 lined up in a sieve-like manner, through which the pinch water 38 passes out of the stopper tube 18.
  • the passages 29 and the passage openings 35 thus cooperate in the discharge of the squeeze 38.
  • the feed material As indicated by the arrow 36, the feed material, as indicated by the arrow 36, is poured loose into the feed hopper 5, in which it slips down due to gravity and into the catchment area of the stuffing screw 1 arrives. There it is detected by the helices 16 and transported in the direction of the arrow 37. As a result of the delivery and compression space 10 continuously decreasing in the conveying direction 37, the feed material is continuously compressed until it has its greatest packing density at the end of the jacket tube 9. The first squeezed due to the increasing compression water 38 passes through the drainage holes 12 in the formed of the cylindrical plate 13 drip tray and is disposed of via the outlet 14.
  • FIG. 4 an embodiment of the invention with alternative design of the inner tube 30 'is shown.
  • Fig. 4 otherwise corresponds to the in Fig. 2 shown partial cross section, so that the same reference numerals are used for identical parts.
  • FIG. 4 shown inner tube 30 'is composed essentially of strip-shaped arc segments 40 which are inserted axially into the plug tube 18 until the drainage regions 34' are aligned radially with the passages 29 in the plug tube 18.
  • the inwardly directed longitudinal edges 41 of the strip-shaped arc segments 40 are chamfered.
  • the attachment of the arcuate segments 40 by means also bow segments performing conveyor belts 32 ', which are clamped by screws 33 radially outward against the inner surface of the pipe section 19.
  • the foot region of the conveyor strips 32 'tapers in the direction of its contact surface on the inner circumference of the plug tube 18, so that the sides of the conveyor strips 32 form wedge surfaces which cooperate with the chamfered longitudinal edges 41 of the arc segments 40.
  • This type of attachment has the advantage that even individual arc segments 40 can be replaced.
  • FIG. 5 relates to a device for the above-described stuffing screw 1 largely identical, so again apply the same reference numerals for the same parts. Differences exist only in the end region of the jacket tube 9 ', which in the conveying direction 38 in about the last third of a Pfropfenrohr 18 comparable pipe section 41 with passages 29' is formed. Within the tube section 41, an inner tube 30 "comparable in design and purpose to the inner tube 30 is seen.” The inner tube 30 "has a multiplicity of drainage regions 34" with passage openings 35 'which are aligned in the radial direction with passages 29' in the jacket tube 9 ' constructive details that already applies under the FIGS. 1 to 4 said.
  • This embodiment of the invention has the advantage that in addition to an effective drainage a simple and quick change of directly affected by wear the inner periphery of the device forming parts not only in the area of the journal 17, but also in the last section of the jacket tube 9 ', in which the Drive shaft 8 is still occupied by helices 16, is possible.
  • Embodiments not shown are also encompassed by the invention, in which the shaft has no journal and no plug pipe and therefore compression and dewatering according to the invention take place only in the last section of the jacket pipe.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Paper (AREA)
  • Treatment Of Sludge (AREA)
  • Joints Allowing Movement (AREA)
  • Screw Conveyors (AREA)
  • Filtration Of Liquid (AREA)
EP08008475.9A 2007-05-14 2008-05-06 Dispositif de séchage par compactage de matériaux de chargement fluides ou en vrac Active EP1992894B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08008475T PL1992894T3 (pl) 2007-05-14 2008-05-06 Urządzenie do odwadniania sypkiej lub płynnej nadawy przez jej zagęszczanie

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202007007038U DE202007007038U1 (de) 2007-05-14 2007-05-14 Vorrichtung zum Entwässern von schütt- oder fließfähigem Aufgabegut durch Verdichtung

Publications (2)

Publication Number Publication Date
EP1992894A1 true EP1992894A1 (fr) 2008-11-19
EP1992894B1 EP1992894B1 (fr) 2014-02-26

Family

ID=38622652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08008475.9A Active EP1992894B1 (fr) 2007-05-14 2008-05-06 Dispositif de séchage par compactage de matériaux de chargement fluides ou en vrac

Country Status (5)

Country Link
US (1) US8333282B2 (fr)
EP (1) EP1992894B1 (fr)
DE (1) DE202007007038U1 (fr)
PL (1) PL1992894T3 (fr)
RU (1) RU2378429C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423972A (zh) * 2013-09-02 2013-12-04 潍坊金丝达环境工程股份有限公司 导流式垃圾挤水机
EP3617402A1 (fr) 2018-08-31 2020-03-04 Andritz Ag Vis de bourrage

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008046928A1 (de) * 2008-09-12 2010-03-18 Georg Klaß sen. Schneckenfilterpresse
ITRE20090013A1 (it) * 2009-02-19 2010-08-20 Greenmec S R L Trasformazione della frazione umida organica dei rifiuti solidi urbani
US10018416B2 (en) * 2012-12-04 2018-07-10 General Electric Company System and method for removal of liquid from a solids flow
US9702372B2 (en) 2013-12-11 2017-07-11 General Electric Company System and method for continuous solids slurry depressurization
US9784121B2 (en) 2013-12-11 2017-10-10 General Electric Company System and method for continuous solids slurry depressurization
US10118358B2 (en) * 2014-12-22 2018-11-06 Us Farm Systems, Inc. Screw press for separation of liquid from bulk materials
CN104567321A (zh) * 2014-12-24 2015-04-29 华新水泥(黄石)装备制造有限公司 一种用于挤压脱水的螺旋挤压机
EP3053725A1 (fr) * 2015-02-06 2016-08-10 LANXESS Deutschland GmbH Vis de gavage
CN104772921A (zh) * 2015-04-17 2015-07-15 广西大学 一种横式垃圾压缩处理器
EP3490691A4 (fr) * 2016-07-29 2020-06-03 CBD Inc. Procédés, dispositifs et systèmes d'extraction d'huiles à partir de matière végétale
AT518983B1 (de) * 2016-12-02 2018-03-15 Andritz Ag Maschf VORRICHTUNG ZUM ENTWÄSSERN VON SCHÜTTFÄHIGEM ODER FLIEßFÄHIGEM AUFGABEGUT

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DE46208C (de) * 1888-06-15 1889-02-21 M. EHRHARDT in Wolfenbüttel Neuerung an doppelwandigen, cylindrischen prefstopfen fur oelsamen
US2910183A (en) * 1955-05-31 1959-10-27 Fmc Corp Strainer
GB904328A (en) 1960-03-17 1962-08-29 Stord Marin Ind As Apparatus for continuous separation of liquid from pulp and similar wet masses
US3065689A (en) 1959-11-16 1962-11-27 Speakman Co Continuous screw press progressively adjustable during operation
US3230865A (en) 1962-06-22 1966-01-25 Ruhrchemie Ag Process and device for removing liquids from solids
DE1252175B (de) * 1962-01-19 1967-10-19 Leje & Thurne Aktiebolag, Stockholm Schneckenfilterpresse zum kontinuierlichen Entwässern einer Pulpe aus Holzfasern oder Gemischen aus Abwasserschlamm und Fasern
US4556452A (en) * 1980-11-20 1985-12-03 Simmering-Graz-Pauker Aktiengesellschaft Process and apparatus for producing pulp
EP0367037A2 (fr) 1988-11-03 1990-05-09 Fan Engineering Gmbh Procédé de déshydratation d'une suspension aqueuse et pressoir à vis rotative
WO1992013710A1 (fr) * 1991-02-12 1992-08-20 Andritz Sprout-Bauer, Inc. Dispositif a vis et elements de compression reglables
WO1996022705A1 (fr) * 1995-01-23 1996-08-01 Helmut Linsgeseder Procede et appareil d'extraction d'huiles vegetales
US5662035A (en) * 1994-11-28 1997-09-02 Young Tae Kim Cleaning device of a screw press for filtering and dehydrating garbage
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CA2319957A1 (fr) * 2000-09-18 2002-03-18 Frank Grund Crepine de presse a vis essoreuse
DE20022778U1 (de) * 2000-03-04 2002-03-21 Braunschweigische Maschinenbauanstalt AG, 38122 Braunschweig Siebmantel einer Schnitzelpresse
EP1568478A1 (fr) * 2004-02-26 2005-08-31 VM Press S.r.l. Machine de compactage de déchets

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Publication number Priority date Publication date Assignee Title
DE46208C (de) * 1888-06-15 1889-02-21 M. EHRHARDT in Wolfenbüttel Neuerung an doppelwandigen, cylindrischen prefstopfen fur oelsamen
US2910183A (en) * 1955-05-31 1959-10-27 Fmc Corp Strainer
US3065689A (en) 1959-11-16 1962-11-27 Speakman Co Continuous screw press progressively adjustable during operation
GB904328A (en) 1960-03-17 1962-08-29 Stord Marin Ind As Apparatus for continuous separation of liquid from pulp and similar wet masses
DE1252175B (de) * 1962-01-19 1967-10-19 Leje & Thurne Aktiebolag, Stockholm Schneckenfilterpresse zum kontinuierlichen Entwässern einer Pulpe aus Holzfasern oder Gemischen aus Abwasserschlamm und Fasern
US3230865A (en) 1962-06-22 1966-01-25 Ruhrchemie Ag Process and device for removing liquids from solids
US4556452A (en) * 1980-11-20 1985-12-03 Simmering-Graz-Pauker Aktiengesellschaft Process and apparatus for producing pulp
EP0367037A2 (fr) 1988-11-03 1990-05-09 Fan Engineering Gmbh Procédé de déshydratation d'une suspension aqueuse et pressoir à vis rotative
WO1992013710A1 (fr) * 1991-02-12 1992-08-20 Andritz Sprout-Bauer, Inc. Dispositif a vis et elements de compression reglables
US6022474A (en) * 1993-03-05 2000-02-08 Mackelvie; Winston R. Wastewater separator
US5662035A (en) * 1994-11-28 1997-09-02 Young Tae Kim Cleaning device of a screw press for filtering and dehydrating garbage
WO1996022705A1 (fr) * 1995-01-23 1996-08-01 Helmut Linsgeseder Procede et appareil d'extraction d'huiles vegetales
DE20022778U1 (de) * 2000-03-04 2002-03-21 Braunschweigische Maschinenbauanstalt AG, 38122 Braunschweig Siebmantel einer Schnitzelpresse
CA2319957A1 (fr) * 2000-09-18 2002-03-18 Frank Grund Crepine de presse a vis essoreuse
EP1568478A1 (fr) * 2004-02-26 2005-08-31 VM Press S.r.l. Machine de compactage de déchets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103423972A (zh) * 2013-09-02 2013-12-04 潍坊金丝达环境工程股份有限公司 导流式垃圾挤水机
CN103423972B (zh) * 2013-09-02 2015-02-18 潍坊金丝达环境工程股份有限公司 导流式垃圾挤水机
EP3617402A1 (fr) 2018-08-31 2020-03-04 Andritz Ag Vis de bourrage

Also Published As

Publication number Publication date
PL1992894T3 (pl) 2014-07-31
DE202007007038U1 (de) 2007-10-25
US8333282B2 (en) 2012-12-18
RU2008118952A (ru) 2009-11-20
EP1992894B1 (fr) 2014-02-26
US20080287277A1 (en) 2008-11-20
RU2378429C1 (ru) 2010-01-10

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