EP3094479A1 - Pressschnecke für einen pressschneckenseparator - Google Patents
Pressschnecke für einen pressschneckenseparatorInfo
- Publication number
- EP3094479A1 EP3094479A1 EP15700220.5A EP15700220A EP3094479A1 EP 3094479 A1 EP3094479 A1 EP 3094479A1 EP 15700220 A EP15700220 A EP 15700220A EP 3094479 A1 EP3094479 A1 EP 3094479A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screw
- core
- press
- additional
- wear element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B30B9/121—Screw constructions
Definitions
- the present invention relates to a press screw of a press screw separator, a press screw separator with this press screw, a wear element of the press screw, and a method of manufacturing the press screw.
- Press screw separators are used to squeeze out a pulp.
- the slurry may in particular be liquid manure or sewage.
- the wastewater can come from both municipal and industrial plants, which should always be separated into solid and liquid components.
- a cylindrical screen is arranged, within which a screw rotates.
- the pulp is conveyed through the press screw separator and pressed.
- the sieve pass the liquid portions of the pulp, while within the sieve a Feststoffpfropfen formed.
- the Feststoffpfropfen is conveyed to one end of the press screw separator to be outputted there. In the area of the solid plug, the highest wear occurs on the screw.
- the press screw includes a base soul. At least one spiral screw is arranged on this base core. Furthermore, the press screw comprises a wear element. The wear element has an additional soul. At least one screw spiral section is arranged on this additional core. The base core and the additional core are plugged into each other, so that the screw spiral in the assembled state merges into the screw spiral section. There are also press screws with several spiral flights. Accordingly, wearing elements are also provided in which a plurality of worm gear segments are arranged on the additional core.
- the base core and the additional core are preferably tubular elements.
- the spiral screw or the screw spiral section are arranged spirally on the base core or additional core. The wear element can be replaced with appropriate wear on the Schneckenplanetarylabsacrificing.
- the worm spiral of the base core and the worm spiral section of the wear element overlap and lie flat against each other.
- the Schneckenplanetaryiabites is in the axial direction preferably via the additional soul over.
- the worm turning section then extends onto the base core and can thus overlap with the worm spiral of the base core.
- the base core preferably has a first section with a first outer diameter and a second section with a second outer diameter.
- the second outer diameter is smaller than the first outer diameter.
- the additional soul is preferably attached to the second section. Through these different outer diameter of the base soul creates a continuous transition from the base soul to the additional soul.
- the base core preferably has a first conical annular surface.
- the additional core preferably has a second conical annular surface. In the assembled state, the two conical annular surfaces abut each other. As a result, a conical fit between basic soul and additional soul is given. The conical annular surfaces therefore provide for a centering of the two components to each other.
- the Schneckenwendeiabites on the additional soul extends over preferably at most 360 °, preferably over a maximum of 180 °, more preferably over a maximum of 120 °. It is therefore preferably provided that only a short part, namely the end region of the entire screw helix is formed by the Schnecken Maisiabêt the wear element. With a section of the screw helix of 120 °, there is no possible narrowing between the two helices in a helix with two helices. It is precisely this end region that is subject to wear and is formed by the worm turning section of the wear element.
- plug region In the case of press screws, there is usually a so-called "plug region" following the screw spiral, this plug region being formed by a section which consists only of the core, without spiral flights an annular plug of solid, in a first variant, the couponseeie the wear element is relatively long and the Schneckenplanetaryiab mustard the Verschi impartides extends only over a relatively short area of the additional soul. As a result, the plug region is formed by the wear element.
- the wear element is formed relatively short, so that the additional soul is substantially only so long to carry the Schneckenplanetaryiab mustard the Verschi discloseides.
- the Pfopfen Scheme is formed by a clamping tube without Schneckenplanetaryln. The wear element is accordingly clamped between this clamping tube and the SchneckenplanetarySn the BasisseeSe.
- the above-described second section with the smaller outer diameter of the base core is used both for attaching the relatively short wear element and for attaching the clamping tube. It is preferably provided that the base core in the first section, the additional core and the clamping tube have the same outer diameter. In the assembled state thus results in a uniform outer diameter of the entire soul. Alternatively, the outer diameters steplessly merge into each other, so that a conical soul arises.
- the wear element has a first length.
- the clamping tube has a second length.
- the second length is at least as large as the first length.
- the second length is at least twice as large as the first length.
- the clamping tube is thus made relatively long compared to the additional soul of the wear element. This is particularly advantageous when considering the different production methods: It is preferably provided to manufacture the wear element as a casting. For the clamping tube, however, a tube made of deformed metal is used. So the casting is as small as possible.
- a holding element is preferably provided.
- This holding element is particularly preferably designed as a pull rod.
- the drawbar can also be connected via an internal strut with the basic soul.
- the base element can be connected to a drive of the press screw separator via the retaining element become.
- the wear element or the clamping tube is firmly connected to the holding element, in particular screwed.
- the additional core or the clamping tube is connected to the holding element, so that the Schneckenplanetaryiabêt is pressed against the screw helix. This ensures a secure connection and a good transmission of the torque from the worm gear to the worm gear section.
- the invention further comprises a press screw separator for separating solid components from a slurry containing solid and liquid components.
- the press screw separator has a housing. In this housing, a cylindrical sieve is arranged. Within the screen one of the press screws just described is placed. Either the sieve or the press screw can be rotated within the housing. As a result, the turbid can be squeezed out.
- the invention comprises the wear element for the press screw of the press screw separator.
- This wear element comprises the described additional core, which is designed for nesting with the base core, and at least one arranged on the additional core Schneckenplanetaryiabites.
- the wear element is relatively short as described above and is used together with a clamping tube.
- the invention further comprises a method for producing a press screw of a press screw separator, comprising the following steps: providing the base core with at least one screw spiral arranged on the base core, Providing the wear element with the beauie and arranged on the additional core Schneckenplanetarylabites, and nesting of the base soul and sansseeie, so that the screw spiral merges into the Schneckenplanetarylabrough.
- a clamp pipe is additionally attached to the base sea.
- a conventional press screw is turned off, and the wear element is attached to the turned-off portion of the baseline.
- conventional, already available on the market press screws can be rebuilt so that the wear element is used here.
- FIG 3 shows a component of the press screw according to the invention according to the first embodiment, the press screw according to the invention according to the embodiment in still incompletely mounted state, the press screw according to the invention according to the second embodiment, Fig. 6-8, the press screw according to the invention according to the second embodiment in different mounting states, and
- FIG. Figs. 2 to 4 show the first embodiment.
- Fig. 5 to 9 show the second embodiment.
- the same or functionally identical components are provided with the same reference numerals.
- Fig. 1 shows a press screw separator 2 in partial cutaway representation.
- the press screw separator 2 comprises a housing 3.
- a press screw 1 is arranged in the housing 3.
- the press screw 1 is located inside a cylindrical screen 25.
- the press screw 1 is connected to a transmission 7.
- the transmission 7 is driven by an electric motor 8.
- the press screw 1 can be set in rotation.
- Reference numeral 9 denotes the axis of the press screw 1 and the cylindrical screen 25. This axis 9 defines the "axial direction" of the entire assembly.
- FIG. 2 shows the ready-assembled state of the press screw 1 for this purpose.
- the press screw 1 is composed of a base core 10 with two screw flights 1 1 and an attached Verschi forumelement 12th
- FIG. 3 shows the press screw 1 without the Verschi representedelement 12.
- Fig. 4 an unfinished state is shown, in which the wear element 12 is not yet fully attached to the base core 10.
- FIGS. 2 to 4 show that the base core 10 is subdivided into a first section 18 and a second section 19. On the first section 18 sit the two worm flights 1 1. The second section 19 has a smaller outer diameter than the first section 18. On the second section 19, the wear element 12 is attached.
- the wear element 12 is composed of an additional core 13 and at least one spiral flight section 14 on the additional core 13. Both the base core 10 and the additional core 13 are tubular elements which are fitted together concentrically along the axis 9.
- the torque from the transmission 7 is transmitted to the base core 10 via a retaining element 15, also referred to as a tie rod or inner brace.
- the holding element 15 extends concentrically to the axis 9 through the base core 10 and the additional core 13.
- a disc 17 is placed on the additional core 13.
- a mating surface 20 is provided on the second portion 19. Furthermore, a first conical tube surface 21 on the base core 10 and a second conical tube surface 22 on the additional core 13 ensure an exact fit of the two components.
- the ends of the screw helix 11 and of the helical spiral section 14 are provided with a chamfer 24.
- the additional lake 13 has a plug section 26. At this plug portion 26 no screw flights are provided. In this area, the solid plug forms within the press screw separator 2.
- the worm gear section 14 faces the plug region.
- Such a configuration of the overlap region 23 ensures that the torque can be reliably transferred from the screw helix 11 to the helical spiral section 14 via the overlap region.
- 5 to 9 show a second embodiment of the press screw 1.
- the wear element 12 is designed substantially shorter than in the first embodiment.
- a clamping tube 27 is attached to the second section 19 of the base core 10 in the second embodiment.
- Fig. 6 shows the base core 10 with the screw helix 1 1 without wear element 12 and without clamping tube 27.
- the wear element 12 is first attached in a shortened form. Thereafter, as shown in FIG. 8, a plugging of the clamping tube 27.
- the clamping tube 27 is fastened via the disk 17 and the nut 16.
- Fig. 9 shows in detail the shortened wear element 12 according to the second embodiment.
- the design of the conical tube surfaces 21, 22 and the formation of the screw spiral sections 14 correspond to the first principalsbeispiei.
- 27 corresponding conical tube surfaces can be provided in the second109 corresponding conical tube surfaces also at the junction between additional soul 13 and clamping tube.
- the displacement member 12 has a first length 28.
- the Kiemmrohr 27 extends over a second length 29.
- the second length 29 is advantageously much longer than the first length 28, so that the required plug area without Schneckenplanetaryln is available. When wearing only the relatively short wear element 12 has to be replaced.
- the clamping tube 27 can be used further.
- the first length 28 results from two areas: (i) The piece of the supplementary core 13 on which the two screw spiral sections 14 are arranged. These have opposite to the transport direction, for abutment against the screw helix 1 1 from the figure 7 protruding ends, which serve to prevent rotation. And (ii) the piece of the supplementary core 13 having the third length 28a on which there are no flights of helical flights. In practice, it has been shown that in the transport direction directly behind the two wing tips on the diameter of the additional core 13, a high wear is recorded.
- the third length is 28 a 10% to 50%, more preferably 15% to 30% of the outer diameter of the screw flights 1 1 and
- the third length 28a is between 30mm and 100mm.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
- Filtration Of Liquid (AREA)
- Treatment Of Sludge (AREA)
- Paper (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI201531615T SI3094479T1 (sl) | 2014-01-15 | 2015-01-12 | Stiskalni vijak stiskalnega vijačnega ločevalnika |
| PL15700220T PL3094479T3 (pl) | 2014-01-15 | 2015-01-12 | Ślimak tłoczący dla separatora ze ślimakiem tłoczącym |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014200577.9A DE102014200577B3 (de) | 2014-01-15 | 2014-01-15 | Pressschnecke, Pressschneckenseparator, Verschleißelement und Verfahren zum Herstellen einer Pressschnecke |
| PCT/EP2015/050395 WO2015107018A1 (de) | 2014-01-15 | 2015-01-12 | Pressschnecke für einen pressschneckenseparator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3094479A1 true EP3094479A1 (de) | 2016-11-23 |
| EP3094479B1 EP3094479B1 (de) | 2021-04-14 |
Family
ID=52345243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15700220.5A Active EP3094479B1 (de) | 2014-01-15 | 2015-01-12 | Pressschnecke für einen pressschneckenseparator |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP3094479B1 (de) |
| DE (1) | DE102014200577B3 (de) |
| ES (1) | ES2880285T3 (de) |
| HU (1) | HUE054807T2 (de) |
| PL (1) | PL3094479T3 (de) |
| SI (1) | SI3094479T1 (de) |
| WO (1) | WO2015107018A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021128199A1 (de) * | 2021-10-28 | 2023-05-04 | Vogelsang Gmbh & Co. Kg | Separatorvorrichtung zur Entwässerung feuchter Massen |
| EP4763504A1 (de) * | 2024-12-20 | 2026-06-24 | Südzucker AG | Schneckenpresse, rotierbarer schneckenförderer, verfahren zur herstellung eines feststoffs und eines gepressten feststoffs |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB310680A (en) * | 1928-05-23 | 1929-05-02 | Percy Vavasseur Appleby | Improvements in or relating to feed or pressure worms, applicable for use in oil-pressing apparatus or the like |
| DE554916C (de) * | 1930-09-25 | 1932-07-13 | Fried Krupp Grusonwerk Akt Ges | Schneckenpresse fuer feuchtes Gut mit hohler Schneckenwelle und Abfuehrung des OEls durch die Seiherwandung und die hohle Welle |
| GB966647A (en) * | 1961-07-05 | 1964-08-12 | Telegrafie & Telefonie | Device for changing the orientation or direction of movement of post cards, letters,forms and like flat articles |
| DE2203331A1 (de) * | 1972-01-25 | 1973-08-02 | Miag Muehlenbau & Ind Gmbh | Presschnecke fuer die mechanische fluessigkeitsextraktion |
| DE4444370A1 (de) * | 1994-12-14 | 1996-06-20 | Max Gutknecht | Vorrichtung zum thermischen, mechanischen, chemischen und/oder physikalischen Behandeln eines Produktes |
| DE29706744U1 (de) * | 1997-04-15 | 1998-05-20 | Hasenbein, Günter, Dipl.-Ing., 22946 Großensee | Schneckenelement für Schneckenpresse |
| DE102008021935B4 (de) * | 2008-05-02 | 2024-08-14 | Werkstoff + Funktion Grimmel Wassertechnik Gmbh | Schneckenpresse |
| DE202011004414U1 (de) * | 2011-03-22 | 2011-06-01 | Kun Sheng Machine Co., Ltd. | Entwässer- und Aufbereitungsmaschine |
-
2014
- 2014-01-15 DE DE102014200577.9A patent/DE102014200577B3/de active Active
-
2015
- 2015-01-12 ES ES15700220T patent/ES2880285T3/es active Active
- 2015-01-12 HU HUE15700220A patent/HUE054807T2/hu unknown
- 2015-01-12 WO PCT/EP2015/050395 patent/WO2015107018A1/de not_active Ceased
- 2015-01-12 SI SI201531615T patent/SI3094479T1/sl unknown
- 2015-01-12 PL PL15700220T patent/PL3094479T3/pl unknown
- 2015-01-12 EP EP15700220.5A patent/EP3094479B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3094479B1 (de) | 2021-04-14 |
| WO2015107018A1 (de) | 2015-07-23 |
| DE102014200577B3 (de) | 2015-05-28 |
| ES2880285T3 (es) | 2021-11-24 |
| SI3094479T1 (sl) | 2021-08-31 |
| HUE054807T2 (hu) | 2021-09-28 |
| PL3094479T3 (pl) | 2021-10-11 |
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