EP2139671B1 - Pressschnecke - Google Patents

Pressschnecke Download PDF

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Publication number
EP2139671B1
EP2139671B1 EP08716371.3A EP08716371A EP2139671B1 EP 2139671 B1 EP2139671 B1 EP 2139671B1 EP 08716371 A EP08716371 A EP 08716371A EP 2139671 B1 EP2139671 B1 EP 2139671B1
Authority
EP
European Patent Office
Prior art keywords
cone
pressing cone
pressing
bearing
drive
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.)
Not-in-force
Application number
EP08716371.3A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2139671A1 (de
Inventor
Johann Doppstadt
Horst Berger
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.)
Doppstadt Familienholding GmbH
Original Assignee
Doppstadt Familienholding GmbH
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
Application filed by Doppstadt Familienholding GmbH filed Critical Doppstadt Familienholding GmbH
Priority to PL08716371T priority Critical patent/PL2139671T3/pl
Publication of EP2139671A1 publication Critical patent/EP2139671A1/de
Application granted granted Critical
Publication of EP2139671B1 publication Critical patent/EP2139671B1/de
Not-in-force 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
    • B30B9/12—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
    • B30B9/18—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 with means for adjusting the outlet for the solid

Definitions

  • the invention relates to a press screw, consisting of at least one rotatably mounted in a main housing screw conveyor, a filling opening for drying material, such as wet or wet garbage, and a press cone, against which the auger promotes the good or pressed, the cone with its cone-shaped trained side or with its cone on the output side engages in an opening of the main housing, such that a gap between the opening and press cone for the escape of the pressed and dried material remains.
  • a press screw consisting of at least one rotatably mounted in a main housing screw conveyor, a filling opening for drying material, such as wet or wet garbage, and a press cone, against which the auger promotes the good or pressed, the cone with its cone-shaped trained side or with its cone on the output side engages in an opening of the main housing, such that a gap between the opening and press cone for the escape of the pressed and dried material remains.
  • press screws are known. They are used for pressing and simultaneous drying of bulk material, in particular moist or wet waste.
  • the material to be pressed and dried is filled into a filling opening and is transported by a conveyor screw in the housing of the press screw against a press cone. Between press cone and an outlet opening, a gap is provided through which then the pressed and dried material can escape.
  • the liquid emerging from the pressed and dried material is applied to the main body Usually derived and the pressed and dried material passes preferably below the press cone either in a collecting device or on a conveyor belt, with which it is transported accordingly. Of course, it is also possible to provide appropriate container there, in which the pressed or dried material is then filled.
  • the object of the invention is therefore to develop a press screw, as described above, which no longer has the indicated disadvantages.
  • a press screw with the features of claim 1, namely a press screw, consisting of at least one rotatably mounted in a main housing screw conveyor, a Filling or filling funnel for to be dried Good, such as wet or wet garbage, and a press cone against which the auger promotes the good or pressed, the cone with its cone-shaped side or with its cone on the output side engages in an opening of the main housing, so in that there is a gap between the opening and the press cone for the discharge of the pressed and dried material, wherein the press cone is rotatable and has a drive which is characterized in that the conveyor screw has a shaft and at the same time the screw conveyor shaft is oriented at least as screw conveyor side Part of a storage for the press cone is used.
  • this provides a solution which considerably reduces the expenditure for the storage of the press cone, reduces the susceptibility to faults and, in particular, enables clever solutions for seals in the connection area.
  • the invention also proposes that a drive is provided for the press cone.
  • a drive is provided for the press cone.
  • This makes it possible to set the press cone in a direction of rotation, which is provided, for example, counter to the direction of rotation of the screw conveyor.
  • the direction of rotation can also be provided in the same direction, either with the same, but preferably with different speeds, so that a discharge of the pressed and dried material is easily possible. The discharge process is thereby improved overall.
  • the invention accordingly combines the rotatable design with a corresponding drive of the press cone.
  • the bearing of the press cone takes place, as already described further on, in or on the shaft of the screw conveyor.
  • the shaft of the screw conveyor serves at least at the same time as part of the storage for this press cone.
  • the invention again comprises several variants, according to which, according to a first variant, the bearing is provided in or on the press cone and a pipe or a pipe section serves as a bearing.
  • the tube or the pipe section as storage of the press cone is inserted according to the invention in the hollow-shaped shaft of the screw conveyor.
  • the variant of the invention according to which the tube or the pipe section is pushed as a storage on the shaft of the screw conveyor, comprises of the invention.
  • the invention proposes that the shaft of the screw conveyor is formed of an outer shaft portion and an inner shaft portion and these two shaft portions are provided at the portion of the shaft, which face the pressing screw.
  • Outer and inner shaft portion or the gap between these two shaft sections forms the storage, for example, by the pipe or the pipe section of the press cone is arranged as a storage between these two shaft sections.
  • a seal is formed in particular as a labyrinth seal. This eliminates technically difficult to design sealing solutions in the connection area between the press cone and auger housing at the rotatable areas. Cleverly, it is possible to combine the storage with the seal.
  • An advantageous development of the invention proposes a press screw, which is characterized in that the drive of the screw conveyor is provided as drive for the press cone.
  • This is a preferred embodiment of the invention.
  • the drive of the screw conveyor is used simultaneously as a drive for the press cone. It is possible the Drive movement to transfer directly or indirectly to the press cone. That is, the movement is directly or via a transmission or via appropriate transmission means, such as a wave transferable. The production cost is thereby reduced.
  • a further development of the press screw is characterized in that the shaft of the screw conveyor transmits the drive movement of the screw conveyor drive to the press cone.
  • This clever design further reduces the effort and the susceptibility of the entire device.
  • at least two variants of this solution are involved, namely direct and indirect transmission, e.g. via a gearbox.
  • At least one feather key is provided which entrains the pressing cone or ensures that the rotational movement is transmitted torsion-free from the shaft to the pressing cone. It is advantageous if several circumferentially distributed keys provide for the transmission of rotational movement.
  • a press screw as described above, is characterized in that the feather key is designed for positive locking and, for this purpose, is fitted in correspondingly formed grooves in the shaft and in the pipe or pipe section as a bearing or in the press cone body.
  • the susceptibility of such a solution is low.
  • the invention proposes that the distance of the press cone with respect to the opening on the main housing is variable and an adjusting device is provided for the change in distance.
  • the press cone is able to slide to change the distance on the feather key.
  • the invention also includes an embodiment in which a toothing is provided for the transmission of the rotational movement of the shaft to the press cone.
  • a hydraulic drive according to an embodiment of the invention is provided, for example.
  • an electromechanical drive the press cone drives it is also possible that an electromechanical drive the press cone drives.
  • a preferred embodiment of a hydraulic drive is according to a development of the invention, an oil engine.
  • the drive for the press cone can be provided both with a gear and without a transmission.
  • the invention is not limited to a specific embodiment.
  • a rack is arranged, in which then a pinion of the drive engages, whereby a corresponding reduction or translation of the rotational speed is achieved.
  • a speed of 6 to 10 revolutions per minute is set.
  • the invention is characterized according to a development in that the direction of rotation (a, b) of the press cone is variable.
  • the direction of rotation can be changed in order to avoid clogging or compaction in the outlet area.
  • the speed of the rotational movement of the press cone is changed. This can preferably be done continuously.
  • the invention is not limited to a continuously variable rotational speed. Rather, it is of course also possible to provide corresponding stepped gear, by means of which then the rotational movement is changed in corresponding stages.
  • the invention is characterized in that the distance of the press cone with respect to the opening on the main housing is variable.
  • This can now be compared to the solutions known from the prior art react such that at the same time rotational movement of the cone and a change in the distance and thus an enlargement or reduction of the resulting gap is made possible.
  • This measure is of particular advantage since, according to the invention, it is also not necessary for a change in the Distance to interrupt, for example, the promotion and the drying process. The change in distance can be done during normal operation.
  • the invention proposes that an adjusting device is provided for the change in distance. This adjustment is suitable either to increase the distance or reduce. This depends on the type of material to be dried and pressed.
  • adjusting device it is also possible in a variant according to the invention to provide a mechanical push rod, a rack or the like. Of course, it is then necessary to install a corresponding drive for the so configured adjusting.
  • the contact pressure of the press cone against the flow (A) of the goods adjustable in particular is controllable. So it is possible to increase or reduce this contact pressure during the pressing and drying process.
  • the contact pressure can be controlled by means of a load control.
  • a load control it is of course possible that, if the control of the entire press screw has corresponding capacities, the control of the press screw ensures this task.
  • the adjusting device consists in an advantageous embodiment of three evenly distributed on the circumference of the pressing cylinder hydraulic cylinders which engage in the interior of the pressing cylinder. As a result, they do not disturb this process even during a pressing operation or when changing the distance of the press cone to the main housing. Also, they are protected by the press cone itself from contamination by the material to be dried or pressed.
  • the hydraulic cylinders are fixed to the main body according to an embodiment.
  • this is not preferred for the reasons described above, namely, because in such an embodiment, the pollution can not be excluded, so that additional protective measures might have to be provided. Therefore, the invention proposes, in a very favorable variant, that the hydraulic cylinder or cylinders are fastened to the press cone housing and, in the interior, namely protected against soiling, attack the press cone.
  • the hydraulic cylinders are designed such that they simultaneously form at least part of the bearing for the press cone.
  • a part of the press cone is either mounted on or in the shaft of the screw conveyor and then the other side of the press cone by the hydraulic cylinder or cylinders.
  • the hydraulic cylinders on the press cone housing preferably on the side facing the press cone, bushes which serve as additional slide bearing seals for the cylinder rods and / or are designed to receive torques of the piston rod. At the same time they serve, however, as described above, as storage of at least the side facing away from the main housing side of the press cone.
  • the pressing cylinder advantageously has a cylindrical body, in the interior of which the drive and / or the transmission is / are provided for driving the press cone. Also by this measure it is achieved that the drive and / or a possibly provided gear are protected from contamination.
  • the invention is also characterized in that the drive for the pressing cylinder acts on a sprocket which is arranged in the interior of the cylindrical body.
  • the pressing cylinder consists of a cylindrical body which adjoins the cone of the pressing cylinder.
  • a more stable formation of the entire pressing cylinder is also achieved and at the same time also provides additional protection for the arranged in the interior of the pressing cylinder organs, bearings or the like.
  • elevations are provided on the cone and / or the cylindrical body.
  • Such an increase can be indicated, for example, by a flat iron fastened on the cylindrical body or on the cone.
  • This flat iron is bent according to an advantageous development, in particular curved outward.
  • the elevations or the flat iron are arranged as a spiral and / or star-shaped on the cone of the press cone.
  • Such a configuration can also be provided on the cylindrical body.
  • a favorable variant of the invention proposes that at least part of the bearing for the press cone is provided on the conical side on the press cone.
  • this part of the bearing can be provided within the cone, preferably in the cone, a bearing over which radial and / or axial forces are absorbed.
  • This additional bearing is preferably designed as a tapered roller bearing or the like.
  • the invention is not limited to a tapered roller bearing in the cone of the press cone, but rather includes all variants of bearings that are suitable for the corresponding purpose.
  • the Fig. 1 shows a three-dimensional representation of a press screw 1 according to the invention.
  • the machine is shown at least partially open to represent the functionality. In machining position, of course, the now open part is closed, so that the function is guaranteed and also injury hazards are excluded.
  • the reference numeral 1 generally denotes the press screw.
  • the main housing 2 extends along the conveying direction A from the filling opening 4 for the material to be dried or pressed to the end of the screw conveyor 3.
  • the screw conveyor 3 is offset in the direction of rotation, so that the filled garbage or the material to be conveyed in the direction of the arrow for the conveying direction A is promoted.
  • an opening 6 At the end of the main housing 2 is an opening 6.
  • a pressing cone 5 In this opening extends a pressing cone 5, so that a gap 7 between the opening 6 in the main housing plate of the main housing 2 and the press cone 5 is formed.
  • the press cone 5 is arranged in a press cone housing 10, wherein the press cone housing 10 in turn consists of three parts, namely a cover 10/1, an end plate 10/2 and a transmission or bearing housing 10/3. Between the end-side main housing plate provided with the opening 6 and the end plate 10/2, the actual pressing cone 5 is arranged.
  • the pressing cone 5 As indicated by the arrow for the direction of rotation a-b, the pressing cone 5 is displaceable in one direction of rotation. In this case, a direction of rotation in both directions is provided. With the double arrow c-d, the direction of movement of the press cone in the axial direction to increase or decrease the gap 7 is indicated.
  • the drive 8 engages, for example, on a in Fig. 1 indicated rack or a corresponding ring gear 11 at.
  • the press cone itself consists of two parts, namely the cone 52 and the cylindrical body 51. It is not essential according to the invention to provide the cylindrical part 51 as part of the press cone 5. However, this has a double function, by one in the same way in the Opening 6 is able to intervene and there may be eroded and on the other hand serves the cylindrical body 51 at the same time the protection of the inside arranged assemblies such as the drive 8, a possibly existing gear and the rack or the ring gear 11. Furthermore, at least parts of Adjusting device 9 also disposed in the interior of the cylindrical body 51, whereby they are simultaneously protected from contamination.
  • elevations which may be either conical or frusto-conical, cylindrical or in the form of curved flat iron. If, according to the material to be pressed and conveyed, it is necessary to discharge it at the gap 7, the presence of elevations on the cone 52 or the cylindrical body 51 contributes to improving the discharge process.
  • the adjusting device 9 is provided at the end plate 10/2 of the press cone housing and the adjusting device 9 . In the example shown, this consists of three hydraulic cylinders which engage in the interior of the press cone 5. These hydraulic cylinders 9 are distributed in a uniform extent on the press cone housing 10 and at the same time form the second part of the storage for the press cone.
  • the press cone is in fact mounted on the one hand to the screw conveyor 3 and on the other hand, as just mentioned, on the press cone housing 10.
  • On the press cone housing 10 is further provided a gear or bearing housing 10/3, arranged within which, for example, a gear or a corresponding bearing can be.
  • the Fig. 2 shows a detailed view of the press screw 1 with press cone 5 and inserted storage.
  • the press cone 5 consists again of the cylindrical body 51 and the cone 52.
  • a bearing 13 designed as a tapered roller bearing is provided in this embodiment.
  • radial and / or axial forces are absorbed because, as further mentioned by the press cone 5 with its two elements 51 and 52 can be acted upon with a contact pressure and the contact pressure is preferably controlled by a load control. For this reason It may be necessary to provide this additional storage 13.
  • the press cone 5 is further supported on the other side facing away from the shaft 31 by the adjusting device 9.
  • the adjusting device 9 located on the press cone 5 facing side of the press cone housing cover 10/2 corresponding sockets 9/1, within which the cylinder rods 9/2 of the adjusting device 9 are mounted.
  • the bushes 9/1 are at the same time designed such that they also serve as additional slide bearing seals for the cylinder rod 9/2 and / or are suitable for receiving torques of the cylinder rod.
  • the Fig. 3 also uses the already presented reference numerals and shows a detailed view of the interior of the press cone 5.
  • the drive 8 is provided with a gear 81.
  • the gear 81 drives the drive 8 the press cone 5 with its cylindrical body 51 via a ring gear 11 at.
  • the pipe section as a bearing 12 is shown at the cone-side end of the press cone 5.
  • the Fig. 4 shows a press screw 1 after the Fig. 1 with an altered distance 7 of the press cone 5 to the main housing 2 toward or to the opening 6. All other reference numerals correspond to those in Fig. 1 are presented and will not be explained again.
  • Fig. 5 shows a further detail of the press screw according to the invention in an embodiment without cylindrical body 51. Otherwise, the reference numbers already presented here correspond to those in the preceding figures, so that will not be discussed in detail again.
  • the Fig. 6 shows an advantageous variant of the invention with over the worm shaft 31 of the screw conveyor 3 driven pressing cone 5.
  • the already used and presented reference numerals of the preceding figures are in this figure and also in Fig. 7 used in the same way, for which reason the following description regarding the reference numbers may not be complete.
  • the press cone 5 connects with its cone 52 and its cylindrical body 51 directly to the main housing of the screw conveyor 3.
  • the press cone is driven directly by the shaft 31 of the screw conveyor 3.
  • the design is chosen so cleverly that the shaft 31 is slotted or hollow-shaped, so to speak, in two parts 31/1 and 31/2.
  • the press cone is mounted with its pipe section 12 as a bearing between these two shaft parts 31/1 and 31/2.
  • the transmission of the rotational movement takes place by a feather key 121, which is advantageously designed for positive engagement and is fitted in correspondingly formed grooves in the shaft and in the pipe or pipe section as a bearing or in the press cone body.
  • a part of the adjusting device 9 is shown at a distance from the press cone 5. Only the cylinder rods 9/2 are provided with reference numerals. In a coupled position, these cylinder rods 9/2 engage with the coupling elements visible in the press cone housing or body 51.
  • the Fig. 7 shows a representation of the press cone after Fig. 6
  • the press cone 5 with its cone 52 and its body 51 is located in a farther position from the main housing of the screw press.
  • the adjusting device 9 is coupled to the pressing cone 5 in this illustration. All other details of the embodiment presented here have already been further forward or, in particular, in Fig. 6 described, so that is renounced to a new idea.
  • the drive via the shaft 31 also has an example in the press cone, namely in Body 51 arranged gear is done. It is also possible to arrange a corresponding toothing, as described in the embodiments described above, in the housing 51 and to provide on the shaft 31 a corresponding pinion, which then drives the press cone with a transmission or reduction. It is also possible to effect a change of direction by interposing a gearbox.
  • the invention can therefore also be combined in the variants illustrated in the individual figures.
  • the drive 8 described further above is provided as an alternative drive to the main drive of the screw conveyor 3.
  • the invention is very variable and versatile in this regard.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screw Conveyors (AREA)
EP08716371.3A 2007-03-09 2008-03-07 Pressschnecke Not-in-force EP2139671B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08716371T PL2139671T3 (pl) 2007-03-09 2008-03-07 Ślimak wytłaczający

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202007003665U DE202007003665U1 (de) 2007-03-09 2007-03-09 Pressschnecke
PCT/EP2008/001858 WO2008110310A1 (de) 2007-03-09 2008-03-07 Pressschnecke

Publications (2)

Publication Number Publication Date
EP2139671A1 EP2139671A1 (de) 2010-01-06
EP2139671B1 true EP2139671B1 (de) 2016-02-24

Family

ID=39595833

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08716371.3A Not-in-force EP2139671B1 (de) 2007-03-09 2008-03-07 Pressschnecke

Country Status (5)

Country Link
EP (1) EP2139671B1 (pl)
DE (1) DE202007003665U1 (pl)
ES (1) ES2566497T3 (pl)
PL (1) PL2139671T3 (pl)
WO (1) WO2008110310A1 (pl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009014647B4 (de) 2009-03-26 2013-03-28 Helmholtz-Zentrum Für Umweltforschung Gmbh - Ufz Dosiervorrichtung für Bioreaktoren
DE202015006123U1 (de) * 2015-09-04 2016-12-08 Doppstadt Familienholding Gmbh Vorrichtung zur Trennung von gemischtem Gut mit festen und mit flüssigen Anteilen

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807155A1 (de) * 1967-11-10 1969-06-12 Tad Glowacki Vorrichtung zum Entwaessern von Schlamm- oder Fasersuspensionen
US4291619A (en) * 1979-10-17 1981-09-29 Hunt Arthur J Screw press with controllable rear door

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1032537A (fr) * 1951-02-16 1953-07-02 Presse continue pour pâtes à papier
US5012731A (en) * 1985-06-26 1991-05-07 Yves Maisonneuve Device for pressing heterogeneous mixtures with regulated pressing force for separating liquid and solid fractions thereof, in particular fruit juices
SU1609708A1 (ru) * 1989-01-09 1990-11-30 Научно-Производственное Объединение "Свема" Горизонтальный шнековый пресс
WO1994027811A1 (de) * 1993-06-02 1994-12-08 Buehler Ag Schneckenpresse
NO300533B1 (no) * 1994-10-26 1997-06-16 Reime As Anordning for justering av mottrykk i en skrupresse
NL1005398C2 (nl) * 1997-02-28 1998-08-31 Matheus Everardus Antonis Inrichting voor het scheiden van een substantie in een in hoofdzaak vaste stof en een in hoofdzaak vloeibare stof alsmede een dergelijke werkwijze.
DE29901683U1 (de) * 1999-02-01 1999-05-27 Heissenberger & Pretzler Ges. M.B.H., Frohnleiten Schneckenpresse

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1807155A1 (de) * 1967-11-10 1969-06-12 Tad Glowacki Vorrichtung zum Entwaessern von Schlamm- oder Fasersuspensionen
US4291619A (en) * 1979-10-17 1981-09-29 Hunt Arthur J Screw press with controllable rear door

Also Published As

Publication number Publication date
DE202007003665U1 (de) 2008-07-24
WO2008110310A1 (de) 2008-09-18
ES2566497T3 (es) 2016-04-13
PL2139671T3 (pl) 2016-07-29
EP2139671A1 (de) 2010-01-06

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