EP2766177B1 - Schneckenpresse - Google Patents

Schneckenpresse Download PDF

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Publication number
EP2766177B1
EP2766177B1 EP12768712.7A EP12768712A EP2766177B1 EP 2766177 B1 EP2766177 B1 EP 2766177B1 EP 12768712 A EP12768712 A EP 12768712A EP 2766177 B1 EP2766177 B1 EP 2766177B1
Authority
EP
European Patent Office
Prior art keywords
screw press
pipe
flight
shaft
tube
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
EP12768712.7A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP2766177A1 (de
Inventor
Roland Kanzler
Rudolf Stadlauer
Johannes KNAFL
Wolfgang Magor
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.)
Andritz AG
Original Assignee
Andritz AG
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 Andritz AG filed Critical Andritz AG
Publication of EP2766177A1 publication Critical patent/EP2766177A1/de
Application granted granted Critical
Publication of EP2766177B1 publication Critical patent/EP2766177B1/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
    • 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
    • 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
    • B30B9/122—Means preventing the material from turning with the screw or returning towards the feed hopper
    • 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
    • B30B9/16—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 operating with two or more screws or worms
    • B30B9/166—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 operating with two or more screws or worms the screws being coaxially disposed in the same chamber

Definitions

  • the invention relates to a screw press with a shaft and helical coil mounted thereon, according to claim 1.
  • dewatering screw presses are used to separate liquids and solids suspended therein. Many of these thickening and dewatering units are used particularly in the pulp and paper industry, since in this industrial sector water / pulp mixtures or in other words, suspensions are always used. Drainage screw presses have proved to be very efficient machines, especially in the thickening of suspensions of 3.5% to 4% solids content in the feed to 25 to 35% solids content in the outlet. Such a screw press is inter alia in the AT398 090 described.
  • the JP 63154297 A describes a (vertical) filter with compression screw, where in the compression area no more drainage takes place.
  • the DE 299 01 683 U1 describes a screw press with cones and an axially displaceable hollow shaft.
  • the aim of the invention is therefore to increase the screen area at a given length and diameter.
  • a favorable development of the invention is characterized in that the fixed tube is a screen tube, wherein the fixed tube may also have grooves or surfaces which counteract the co-rotation.
  • An advantageous embodiment of the invention is characterized in that the fixed tube has at least one filtrate channel, wherein the filtrate channel can be formed by a further tube between the fixed tube and the shaft journal.
  • An advantageous development of the invention is characterized in that the filtrate channel is divided by means of web plates into a plurality of separate filtrate channels.
  • a screw press 1 as in Fig. 1 consists of an inlet housing 2, an outlet housing 3, a worm shaft 4 with one or more helical worm gears 5 mounted on the worm shaft, which worm helixes 5 can be made both continuous and interrupted, and a housing shell 6 surrounding this worm shaft 4 arises between the housing shell 6, the worm shaft 4 and the spiral screw helix 5, a conveying gap 7 for the dewatered Suspension.
  • This conveying gap 7 can change its geometry along the axis of the worm shaft 4, but this need not necessarily.
  • the principle of the screw press 1 is as follows: The worm shaft 4, which is mounted within the housing shell 6 is set by a drive of any kind in a rotary motion.
  • a suspension is supplied.
  • the rotating shaft 4 moves this suspension through the spiral helix 5 within the Conveying gap 7 in the direction of connected to the housing shell 6 outlet housing 3.
  • the housing shell 6 a dewatering screw press 1 is usually designed as a sieve.
  • the conveying gap 7 formed by the shaft 4, the worm gear 5 and the housing jacket 6 changes its geometry along the shaft axis, in the direction of the outlet housing 3, in a manner which facilitates dewatering. In most cases, the available volume along the shaft axis is reduced so to force the drainage of the suspension. The liquid thus released is discharged through the housing jacket 6 designed as a sieve.
  • the screw helix 5 merges into a freely projecting spiral helix 8.
  • the coil 8 is not necessarily sauish matter (as shown) executed. To increase the strength of the helix, this could also be stiffened with a U-profile.
  • the freely projecting helix 8 passes with a sufficient gap over a fixed tube 9 in the inlet region of the screw press 1.
  • This tube 9 is firmly connected to the frame of the screw press 1 and performs no rotational movement.
  • the attached to the frame of the press 1 tube 9 is preferably designed as a sieve which in the inlet region of the press 1, the screen area is increased enormously.
  • the tube 9 need not be designed as a sieve tube, but may also have any grooves or a macroscopic or microscopic rough surface. Through this surface, as well as by grooves or a sieve of the co-rotation is counteracted. This causes in addition to better drainage that the solid suspension (pulp suspension) no longer adheres to the metallic surface and thereby an axial transport of solids is ensure
  • the shaft 10 of the conventional worm shaft 4 is performed by the attached to the frame of the press 1 tube 9 and stored conventionally after the housing feedthrough.
  • Fig. 2 shows the inlet part 2 according to the invention a screw press 1.
  • the suspension enters the inlet nozzle 11 a.
  • the entire inlet part is connected in the illustrated embodiment by means of flange 12 with the housing shell 6.
  • the inlet part can also be designed differently.
  • the inlet part 2 has a tube 9, which is firmly connected thereto, as shown here by way of example by means of screws.
  • a concentric tube 13 which has a larger diameter, than the shaft journal 10 (not shown), is provided.
  • Tube 9 and tube 13 thus form a filtrate channel 14.
  • This filtrate channel 14 can also be divided by web plates into a plurality of separate filtrate channels.
  • the filtrate collected in the tube 9 is then passed through the filtrate channel 14 in the Filtratsammelflansch 15 and in this embodiment, for example via a Filtratsammelpfanne 16 in the filtrate pan 17 (FIG. Fig. 1 ) of the screw press 1 passed.
  • Fig. 3 is now a section through a worm shaft 4 shown.
  • the present invention offers two advantages over conventional screw presses:
  • the sieve surface in the inlet region 2 of the screw press 1 is increased by a factor of 1.5 to 1.8. This significantly increases the drainage performance of the press 1.
  • the co-rotation of the pulp is reduced. Fibers show a tendency to adhere to the rotating shaft. If the fiber adheres to the worm shaft 4, the axial transport is reduced or even comes to a standstill.
  • the decisive factors for this co-rotation are the friction conditions inside the press. In conventional presses as well as in the conventional part of the screw extruder 1 4 1, the pulp is prevented by the designed as a sieve housing shell 6 of the press 1 to the co-rotation.
  • the worm shaft 4 itself tries to put the pulp in a rotary motion.
  • the pulp adheres to the surface of the worm shaft 4 and then co-rotates at the shaft speed without experiencing substantial axial feed.
  • the adhesion of the pulp to the rotating worm shaft 4 in the inlet region is prevented by the fact that only a stationary pipe 9 is installed in the inlet region 2.
  • the tube 9 is preferably designed as a sieve, but may also have any grooves or a macroscopically or microscopically rough surface. These grooves or macroscopically or microscopically rough surface can also be mounted on a tube 9 designed as a sieve.
  • the worm shaft 4 or actually the pin 10 rotates within this tube 9.
  • Both the sieve-like housing jacket 6 and the sieve tube 9 inserted in the inlet region 2 prevent the fibrous material from rotating.
  • the cantilevered Spiral 8 passes over the sieve tube 9 and transports the pulp purely axially forward. This leads to a considerable increase in the transport efficiency and thus to an increased material removal from the inlet region 2 of the press 1, whereby the inlet mass flow is increased.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filtration Of Liquid (AREA)
  • Treatment Of Sludge (AREA)
  • Paper (AREA)
  • Press Drives And Press Lines (AREA)
EP12768712.7A 2011-10-11 2012-09-10 Schneckenpresse Not-in-force EP2766177B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ATA1475/2011A AT511982B1 (de) 2011-10-11 2011-10-11 Schneckenpresse
PCT/EP2012/003785 WO2013053418A1 (de) 2011-10-11 2012-09-10 Schneckenpresse

Publications (2)

Publication Number Publication Date
EP2766177A1 EP2766177A1 (de) 2014-08-20
EP2766177B1 true EP2766177B1 (de) 2018-12-26

Family

ID=46970208

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12768712.7A Not-in-force EP2766177B1 (de) 2011-10-11 2012-09-10 Schneckenpresse

Country Status (10)

Country Link
US (1) US10005252B2 (ja)
EP (1) EP2766177B1 (ja)
JP (1) JP6147260B2 (ja)
CN (1) CN103946017B (ja)
AT (1) AT511982B1 (ja)
BR (1) BR112014008559A2 (ja)
CA (1) CA2851289C (ja)
CL (1) CL2014000907A1 (ja)
RU (1) RU2606820C2 (ja)
WO (1) WO2013053418A1 (ja)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10118358B2 (en) * 2014-12-22 2018-11-06 Us Farm Systems, Inc. Screw press for separation of liquid from bulk materials
CN108081430A (zh) * 2017-12-14 2018-05-29 王伟 一种植物纤维或高分子材料复合木材的生产设备
CN107932961A (zh) * 2017-12-21 2018-04-20 中科国兴（北京）科技有限公司 一种固液分离机
DE102018113135A1 (de) 2018-06-01 2019-12-05 Bernhard Giersberg Vorrichtung zur Klärschlammentwässerung
CN110345720A (zh) * 2019-08-08 2019-10-18 沈阳远大科技实业有限公司 一种螺旋挤压脱水机
CN110526541A (zh) * 2019-08-26 2019-12-03 南京爱斯利尔环保设备工程有限公司 一种螺旋压榨机
CN113002046B (zh) * 2021-03-03 2021-12-14 林美珊 一种螺旋挤压式固液分离机
CN113198240A (zh) * 2021-05-07 2021-08-03 抚州市第一中医医院(江西中医药高等专科学校附属医院) 一种中医心血管药物残渣收集装置
USD1040193S1 (en) * 2021-12-27 2024-08-27 Haarslev Industries A/S Engine for fat screw press

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671491A (ja) * 1992-08-26 1994-03-15 Hitachi Zosen Corp スクリュ式脱水機

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SE403309B (sv) * 1976-09-07 1979-01-29 Reinhall P G Skruvpress, sasom skruvmatare for lignocellulosahaltigt fibermaterial eller annat kompressibelt material i styckeform
DE2718673A1 (de) * 1977-04-27 1978-11-02 Krauss Maffei Ag Verfahren und vorrichtung zum entwaessern von schlamm
DE3043194A1 (de) * 1980-11-15 1982-07-01 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Einrichtung zum mechanischen trennen von fluessigkeiten aus fluessigkeitsfeststoffgemischen in einer schneckenpresse
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FR2629844B1 (fr) * 1988-04-06 1991-09-27 Clextral Procede pour la fabrication d'une pate a papier a usage fiduciaire
JPH06695A (ja) * 1992-06-18 1994-01-11 Hitachi Zosen Corp スクリュウ式脱水機
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671491A (ja) * 1992-08-26 1994-03-15 Hitachi Zosen Corp スクリュ式脱水機

Also Published As

Publication number Publication date
BR112014008559A2 (pt) 2017-04-18
RU2606820C2 (ru) 2017-01-10
CA2851289C (en) 2019-10-01
WO2013053418A1 (de) 2013-04-18
CA2851289A1 (en) 2013-04-18
RU2014116883A (ru) 2015-11-20
CL2014000907A1 (es) 2014-06-27
US10005252B2 (en) 2018-06-26
AT511982A1 (de) 2013-04-15
CN103946017A (zh) 2014-07-23
JP2015502856A (ja) 2015-01-29
EP2766177A1 (de) 2014-08-20
AT511982B1 (de) 2013-10-15
JP6147260B2 (ja) 2017-06-14
US20150224730A1 (en) 2015-08-13
CN103946017B (zh) 2016-08-03

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