EP3105045B1 - Pressschneckenseparator - Google Patents

Pressschneckenseparator Download PDF

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Publication number
EP3105045B1
EP3105045B1 EP15703610.4A EP15703610A EP3105045B1 EP 3105045 B1 EP3105045 B1 EP 3105045B1 EP 15703610 A EP15703610 A EP 15703610A EP 3105045 B1 EP3105045 B1 EP 3105045B1
Authority
EP
European Patent Office
Prior art keywords
wear ring
screen
chamber
screw
sieve
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.)
Active
Application number
EP15703610.4A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3105045A1 (de
Inventor
Otto Roiss
Dietrich Eichler
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.)
Roehren und Pumpenwerk Bauer GmbH
Original Assignee
Roehren und Pumpenwerk Bauer 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 Roehren und Pumpenwerk Bauer GmbH filed Critical Roehren und Pumpenwerk Bauer GmbH
Priority to PL15703610T priority Critical patent/PL3105045T3/pl
Publication of EP3105045A1 publication Critical patent/EP3105045A1/de
Application granted granted Critical
Publication of EP3105045B1 publication Critical patent/EP3105045B1/de
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
    • B30B9/12—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
    • B30B9/127—Feed means
    • 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

Definitions

  • the present invention relates to a screw press separator for separating solid components from a slurry containing solid and liquid components.
  • Screw press separators are used to squeeze out a pulp.
  • the slurry can in particular be liquid manure or waste water.
  • the wastewater can come from both municipal and industrial plants, whereby these should always be separated into solid and liquid components.
  • a cylindrical screen is usually arranged in the housing of the press screw separators, within which a screw rotates. By means of the screw, the pulp is conveyed through the press screw separator and pressed. The liquid fractions of the pulp pass through the sieve, while a solid plug forms inside the sieve. The solid plug is conveyed to one end of the press screw separator by the rotating screw in order to be discharged there.
  • the pamphlet DE10342684 A1 shows a previously known screw press separator.
  • this screw press separator according to the preamble of claim 1, several slots are formed at the transition from the housing to the sieve chamber.
  • the slots form an angle to the screw rotating above, which promotes the thrust and shear effects.
  • the slots are integral elements molded into the housing.
  • the object is thus achieved by a screw press separator for separating solid components from a pulp containing solid and liquid components.
  • the screw press separator comprises a housing with an inlet chamber and a sieve chamber.
  • the inlet chamber merges into the sieve chamber.
  • an inlet for the pulp, an outlet for the solid constituents and an outlet for the liquid constituents are formed on the housing.
  • a screen in particular a cylindrical screen, is arranged in the screen chamber.
  • a screw extends through the inlet chamber and into the screen. The screw can rotate about a longitudinal axis of the sieve. As the screw rotates, the pulp is pressed out along the sieve.
  • the screw is preferably driven by a motor, the inlet chamber being located between the motor and the sieve chamber.
  • a wear ring is arranged at the transition from the inlet chamber to the sieve chamber.
  • the worm extends through this wear ring.
  • the wear ring is attached to the housing and can be replaced.
  • the wear ring can be attached to the inlet chamber.
  • Several cutting edges are formed on the inner circumference of the wear ring. The very narrow gap between the outer edges of the screw threads and these cutting edges leads to a shear effect and thus to a breaking up of long-fiber solids in the pulp. This largely avoids clogging of the sieve.
  • the wear ring is attached to the housing in an exchangeable manner and can easily be exchanged after corresponding wear.
  • the wear ring is arranged as an axial stop for the sieve.
  • a largest diameter of the wear ring is greater than a smallest diameter of the sieve.
  • One end face of the screen can thus rest against the wear ring.
  • the wear ring according to the invention With its cutting edges, not only serves to break up long-fiber constituents of the pulp but also serves at the same time as an axial stop for the sieve.
  • Such an axial stop for the sieve is also subject to increased wear. With only one component, namely the wear ring, two wear-prone parts of the press screw separator, namely the cutting edges and the axial stop, are formed.
  • the wear ring has a first length.
  • the entire screw has a second length.
  • the two lengths are measured in the longitudinal direction of the sieve. It is preferably provided that the first length is a maximum of 10%, preferably a maximum of 5%, of the second length. This ensures that the wear ring according to the invention has a relatively small structure and thus only the component of the press screw separator that is subject to wear is replaced.
  • the wear ring and the cutting edges are arranged in front of the sieve and do not extend into the sieve.
  • the wear ring is therefore only located in the transition area from the inlet chamber to the sieve chamber and does not extend into the sieve. In this transition area in particular, the cutting edges are necessary, since here the long-fiber components can be processed before they enter the sieve.
  • the wear ring is preferably screwed to the housing.
  • several screw connections are provided in particular, which extend parallel to the longitudinal axis of the sieve. The screw connection enables the wear ring to be exchanged easily.
  • the wear ring is a one-piece, closed ring.
  • the cutting edges are an integral part of the closed ring.
  • the entire wear ring is a cast component.
  • This cast component is fitted into the housing by appropriate machining.
  • a wear ring for the press screw separator is also disclosed.
  • This wear ring is used in a press screw separator as described above.
  • the wear ring as a separate, economically tradable component, is designed to be arranged at the transition area from the inlet chamber to the sieve chamber.
  • the wear ring is attached so that it can be replaced.
  • Several cutting edges are formed on the inner circumference of the wear ring.
  • the press screw separator 1 comprises a housing 2. An inlet chamber 3 and a sieve chamber 4 are formed in the housing 2. The inlet chamber 3 merges into the sieve chamber 4.
  • the housing 2 comprises an inlet 5 on the inlet chamber 3. This inlet 5 is used to fill in a slurry.
  • An outlet 6 and an outlet 7 are formed on the sieve chamber 4. The outlet 6 is used with a corresponding mechanism for discharging the separated solids in batches. The liquid component separated from the pulp flows out of the housing 2 via the outlet 7.
  • a gear 11 is flanged to the housing 2.
  • the transmission 11 is in turn driven by a motor 12.
  • the inlet chamber 3 is located between the gearbox-motor unit and the sieve chamber 4.
  • a screw 9 extends from the gear mechanism 11 through the inlet chamber 3 into the sieve chamber 4.
  • a hollow cylindrical sieve 8 is arranged in the sieve chamber 4. Both the sieve 8 and the screw 9 extend along a longitudinal axis 10.
  • the pulp to be separated is poured in via the inlet 5.
  • This pulp is conveyed by the rotating screw 9 in the direction of the outlet 6.
  • a solid plug forms in the area of the outlet 6.
  • the corresponding liquid components of the pulp pass through the sieve 8 radially outwards and flow off via the outlet 7.
  • a wear ring 13 is located at the transition from the inlet chamber 3 to the sieve chamber 4.
  • Fig. 2 shows in detail the design and arrangement of this wear ring 13.
  • the wear ring 13 is a one-piece cast and machined machined component.
  • a plurality of ribs 14 are formed on the inner circumference of the wear ring 13.
  • the wear ring 13 comprises an angular region 15 on its outer circumference.
  • the wear ring 13 is fastened in the housing 2 via this angular region 15. It is fastened by means of screw connections 16. By means of these screw connections 16, the wear ring 13 can easily be exchanged.
  • Fig. 2 shows Fig. 2 that the diameter of the sieve 8 and the diameter of the wear ring 13 are selected so that the sieve 8 strikes the wear ring 13 in the axial direction.
  • the wear ring 13 thus serves as an axial stop for the sieve 8.
  • Fig. 3 shows the in Fig. 2 marked section A: A.
  • each rib 14 forms two cutting edges 17.
  • the cutting edges 17 are thus formed by the ribs 14.
  • the cutting edges 17 extend parallel to the longitudinal axis 10.
  • the outer edges of the spirals of the worm 9 move over these cutting edges 17 with only a very small distance.
  • a corresponding shear load acts on, in particular, long-fiber components in the pulp during the transition from the inlet chamber 3 to the sieve chamber 4.
  • a multiplicity of ribs 14, preferably more than 20, is provided.
  • the narrow gap between the cutting edges 17 and the outer edges of the spirals of the screw 9 is preferably 0.1 to 0.5 mm.
  • Fig. 2 shows a first length 18 of the wear ring 13 measured in the direction of the longitudinal axis 10.
  • Fig. 1 shows a second length 19 of the entire screw 9, also measured in the direction of the longitudinal axis 10.
  • the comparison of these two lengths 18, 19 shows that the wear ring 13 occupies only a small fraction of the second length 19 of the screw 9 in the direction of the longitudinal axis 10.
  • the first length 18 is a maximum of 10%, preferably a maximum of 5%, of the second length 19.
  • the wear ring 13 does not extend into the sieve 8. Rather, the wear ring 13 ends in front of the sieve 18 and can thus also form a stop for the sieve 18.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Treatment Of Sludge (AREA)
  • Filtration Of Liquid (AREA)
EP15703610.4A 2014-02-13 2015-02-11 Pressschneckenseparator Active EP3105045B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15703610T PL3105045T3 (pl) 2014-02-13 2015-02-11 Ślimakowy separator tłoczący

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201420001409 DE202014001409U1 (de) 2014-02-13 2014-02-13 Pressschneckenseparator und Verschleißring
PCT/EP2015/052828 WO2015121280A1 (de) 2014-02-13 2015-02-11 PRESSSCHNECKENSEPARATOR UND VERSCHLEIßRING

Publications (2)

Publication Number Publication Date
EP3105045A1 EP3105045A1 (de) 2016-12-21
EP3105045B1 true EP3105045B1 (de) 2021-04-28

Family

ID=50276754

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15703610.4A Active EP3105045B1 (de) 2014-02-13 2015-02-11 Pressschneckenseparator

Country Status (7)

Country Link
EP (1) EP3105045B1 (pl)
DE (1) DE202014001409U1 (pl)
DK (1) DK3105045T3 (pl)
ES (1) ES2882120T3 (pl)
HU (1) HUE055645T2 (pl)
PL (1) PL3105045T3 (pl)
WO (1) WO2015121280A1 (pl)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016204375B4 (de) * 2016-03-16 2026-02-05 Röhren- Und Pumpenwerk Bauer Ges.M.B.H. Anordnung und Verfahren zur Pasteurisierung und anschließenden Feststoffabscheidung einer Trübe

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB571019A (en) * 1943-06-01 1945-08-02 Bibby & Sons Ltd J Improvements in or relating to machines for expressing liquids from solids
DE2351328A1 (de) * 1973-10-12 1975-04-24 Ver Foerderung Inst Kunststoff Verfahren und einrichtung zum verarbeiten von zuvor unzerkleinerten thermoplastischen kunststoffabfaellen (altmaterial) in einschnecken-extrudern
DE4011248A1 (de) * 1990-04-06 1991-10-10 Poettinger Alois Landmasch Schneckenpresse
DE10342684A1 (de) 2003-09-16 2005-04-28 Fan Separator Gmbh Schneid- und Schutzeinrichtung für Pressschneckenseparatoren
DE102006002016A1 (de) * 2006-01-13 2007-07-19 Andreas Kufferath Gmbh & Co. Kg Schneckenwelle für eine Schneckenpresse
DE202010001758U1 (de) * 2010-02-02 2011-06-09 UTS Biogastechnik GmbH, 85399 Schneckenseparator
DE202010001765U1 (de) * 2010-02-02 2011-06-09 UTS Biogastechnik GmbH, 85399 Schneckenseparator
EP2561981A3 (en) * 2011-08-26 2013-12-25 Thöni Industriebetriebe GmbH Screw conveyor
DE102011086615A1 (de) * 2011-11-18 2013-05-23 Voith Patent Gmbh Schneckenpresse I
DE202013003874U1 (de) * 2013-04-24 2013-05-15 Röhren- Und Pumpenwerk Bauer Ges.M.B.H. Pressschneckenseparator

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
HUE055645T2 (hu) 2021-12-28
DK3105045T3 (da) 2021-08-02
EP3105045A1 (de) 2016-12-21
WO2015121280A1 (de) 2015-08-20
ES2882120T3 (es) 2021-12-01
PL3105045T3 (pl) 2021-11-22
DE202014001409U1 (de) 2014-02-25

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