WO2021219161A1 - Procédé et appareil pour déshydrater des substances - Google Patents

Procédé et appareil pour déshydrater des substances Download PDF

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Publication number
WO2021219161A1
WO2021219161A1 PCT/DE2021/100338 DE2021100338W WO2021219161A1 WO 2021219161 A1 WO2021219161 A1 WO 2021219161A1 DE 2021100338 W DE2021100338 W DE 2021100338W WO 2021219161 A1 WO2021219161 A1 WO 2021219161A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
compressor
screw
substance
housing
Prior art date
Application number
PCT/DE2021/100338
Other languages
German (de)
English (en)
Inventor
Maik BILLE
Jan IKELS
Moritz VÖLTZER
Original Assignee
Harburg-Freudenberger Maschinenbau 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 Harburg-Freudenberger Maschinenbau Gmbh filed Critical Harburg-Freudenberger Maschinenbau Gmbh
Priority to DE112021002568.6T priority Critical patent/DE112021002568A5/de
Publication of WO2021219161A1 publication Critical patent/WO2021219161A1/fr

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
    • B30B9/127—Feed means

Definitions

  • the invention relates to a method for at least partial dehydration of substances, in which the dehydration takes place in a press, to which the substance to be dehydrated is fed and from which both the at least partially dehydrated substance and the squeezed-out liquid are discharged.
  • the invention also relates to a device for at least partial dehydration of substances, which has a press with at least one inlet for the substance to be dehydrated, at least one outlet for the at least partially dehydrated substance and at least one secondary outlet for a squeezed-out liquid.
  • Such methods and devices are used, for example, to dewater sugar cane.
  • the liquid extracted from the sugar cane contains sugar or molasses, which is then fed to a subsequent extraction for sugar.
  • a device and a method for dewatering sugar cane are described, for example, in EP0140990 A1 and EP0144596 A2.
  • the method and device according to the prior art have the disadvantage that a relatively high proportion of moisture remains in the substance to be dehydrated. When used to dewater sugar cane, this means that a considerable proportion of the sugar substance remains in the pressed material. In conventional processes, the amount of sugar not squeezed out with the liquid is around 30 percent of the original sugar content.
  • the object of the present invention is to improve a method and a device of the type mentioned in the introduction in such a way that the degree of dewatering is increased.
  • pre-compression according to the invention or the use of a pre-compressor enable a significant improvement in the degree of dewatering.
  • the pre-compaction leads to a compacted arrangement of the material to be dewatered in the area of the press.
  • the product to be dewatered is typically heated in the pre-compression area.
  • the heating can be a side effect of the pre-compaction, but it is also intended to specifically heat the product in the area of compaction.
  • the compression process can be mechanically supported in that the pre-compression is carried out using a funnel-like housing.
  • the combination of material transport and compression in the area of the pre-compressor can be supported in that a compressor screw rotates within the housing.
  • a high throughput is supported by the fact that a screw press is used as the press.
  • sugar cane is drained.
  • dewater sugar beet it is also contemplated to dewater sugar beet. It is also possible to use the method according to the invention and the device according to the invention for dewatering or dehumidifying wood-like materials.
  • An advantageous coupling of the pre-compressor and the press is supported by the fact that the compressor screw extends into the area of the press entrance.
  • a mechanically resilient construction is achieved in that the compressor screw extends into the area of the connecting piece.
  • the material to be compacted is heated in the area of the pre-compressor.
  • the heating can be achieved, for example, as a secondary effect by compressing the material.
  • it is also contemplated to carry out active heating through the use of heating elements and / or through the supply of superheated steam.
  • Figure 1 A side view of a press with a supercharger attached
  • FIG. 2 an enlarged and partially sectioned side view of a supercharger
  • FIG. 3 a top view according to viewing direction III in FIG. 2.
  • FIG. 1 shows that a press (1) is combined with a pre-compressor (2).
  • the pre-compressor (2) is arranged in front of the press (1).
  • the press (1) is implemented as a screw press.
  • a screw press has a screw (not shown) with a spiral thread.
  • the pitch of a thread of the press screw decreases in one transport direction. As the screw rotates, this results in increasing compression of the transported material.
  • the screw not shown, runs with its longitudinal axis in a horizontal direction.
  • the press (1) has a press inlet (4) and a press outlet (5).
  • the material to be dewatered is fed to the press (1) via the press inlet (4).
  • the at least partially dewatered material leaves the press (1) via the press outlet (5).
  • the pre-compressor (2) has a funnel-like housing
  • the funnel-like housing (7) tapers in the transport direction (3).
  • a compressor screw (8) is arranged within the housing (7) so that it can rotate.
  • the compressor screw (8) is supported by a shaft (9) which is coupled to a motor (10).
  • the outer contour of the compressor screw (8) is adapted to the tapering course of the housing (7).
  • the compressor screw (8) rotates, the material to be compressed is conveyed within the housing (7) in the transport direction (3) and is compressed due to the tapering cross-sectional area.
  • the pre-compressor (2) is arranged in the vertical direction on top of the press (1).
  • the shaft (9) here runs in an essentially vertical direction.
  • the shaft (9) is guided by a bearing (11).
  • the motor (9) is connected to the shaft (9) at the top in a vertical direction.
  • the press (1) has a connecting piece (12) in the area of the press inlet (4).
  • it is intended to place the pre-compressor (2) on the connecting piece (12).
  • it is particularly intended to allow the compressor screw (8) to extend into the connecting piece (12) in one end area.
  • Figure 2 shows the supercharger (2) in a partially sectioned and enlarged view. It can be seen in particular that the compressor screw (8) within the funnel-like housing (7) is only at a small distance from an inner wall of the housing (7). This small distance between the compressor screw (8) and the housing (7) supports the compression process in combination with the adaptation of the outer contour of the compressor screw (8) to the inner contour of the funnel-like housing (7).
  • the material to be dewatered is fed to the pre-compressor (2) via a suitable transport device (13).
  • a screw conveyor or a conveyor belt, for example, can be used as the transport device (13).
  • FIG. 3 illustrates the construction of the supercharger (2) in a plan view.
  • the housing (7) of the supercharger (2) can be arranged in a frame (14).
  • the frame (14) can be constructed from struts, for example.
  • a cuboid support structure is spanned by four vertically arranged struts (15).
  • the struts (15) here run in a vertical direction and can be connected to one another by one or more horizontal struts.
  • a likewise preferred temperature of such sugar cane at the inlet of the pre-compressor (2) is about 35.degree.
  • the dewatered material leaves the press (1) with a residual moisture of about 30 to 35 percent by weight. It is preferred that the dehumidified material leaves the press (1) with a maximum moisture content of 30 to 35 percent by weight.
  • the dehumidified material leaves the press (1) as a so-called press cake.
  • Both the pre-compressor (2) and the press (1) are typically dimensioned in such a way that a throughput of approximately 200 to 250 tons per day of the substance to be dewatered is carried out.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Sludge (AREA)

Abstract

Le procédé et l'appareil servent à la déshydratation au moins partielle de substances. La déshydratation est effectuée dans une presse, à laquelle la substance à déshydrater est fournie. La substance au moins partiellement déshydratée et le liquide pressé sont évacués de la presse. Une précompression de la substance est effectuée dans une direction de transport de la substance en amont de la presse. Une application particulière est la déshydratation de la canne à sucre.
PCT/DE2021/100338 2020-04-27 2021-04-13 Procédé et appareil pour déshydrater des substances WO2021219161A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112021002568.6T DE112021002568A5 (de) 2020-04-27 2021-04-13 Verfahren und Vorrichtung zur Entwässerung von Substanzen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020111373.0A DE102020111373A1 (de) 2020-04-27 2020-04-27 Verfahren und Vorrichtung zur Entwässerung von Substanzen
DE102020111373.0 2020-04-27

Publications (1)

Publication Number Publication Date
WO2021219161A1 true WO2021219161A1 (fr) 2021-11-04

Family

ID=75870336

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2021/100338 WO2021219161A1 (fr) 2020-04-27 2021-04-13 Procédé et appareil pour déshydrater des substances

Country Status (2)

Country Link
DE (2) DE102020111373A1 (fr)
WO (1) WO2021219161A1 (fr)

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR707953A (fr) * 1930-12-18 1931-07-17 Machine pour exprimer le liquide de matières molles et leur mise en forme
US1971632A (en) * 1930-09-15 1934-08-28 Anderson Co V D Feeding mechanism for presses
US2149736A (en) * 1933-10-21 1939-03-07 Stanley Hiller Ltd Apparatus and method for expressing fluid
US3470815A (en) * 1966-05-05 1969-10-07 Landsverk Ab Pulp press
DE2352722A1 (de) * 1973-03-12 1974-09-26 Thaelmann Schwermaschbau Veb Schneckenpresse
DE2337967A1 (de) * 1973-07-26 1975-02-13 Guenther Abel Vorrichtung zur verminderung des wasseranteils von klaerschlamm
FR2354293A2 (fr) * 1975-08-19 1978-01-06 Alsthom Cgee Procede pour le compactage et l'essorage des boues fluides chargees de matieres fibreuses
SU670455A1 (ru) * 1977-06-14 1979-06-30 Крымское Производственное Мебельное Объединение "Крыммебель" Шнековый пресс дл получени древесных брикетов
EP0037041A1 (fr) * 1980-03-27 1981-10-07 Stake Technology Ltd. Presse pour l'extraction en continu de liquide d'une masse
GB2078542A (en) * 1980-06-18 1982-01-13 Inst Pesquisas Tech Process and apparatus for continuous processing under pressure
EP0140990A1 (fr) 1983-11-08 1985-05-15 Braunschweigische Maschinenbauanstalt AG Appareil pour extraire des liquides de matériaux fibrés, feutrés, sous forme d'écheveaux
WO1988006090A1 (fr) * 1987-02-18 1988-08-25 Hedemora Ab Methode et appareil d'egouttage mecanique et de pressage de matiere
CN2813274Y (zh) * 2005-05-25 2006-09-06 北京中棉紫光生物科技有限公司 溶剂萃取物料脱液机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO117956B (fr) 1964-09-04 1969-10-13 Landsverk Ab

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1971632A (en) * 1930-09-15 1934-08-28 Anderson Co V D Feeding mechanism for presses
FR707953A (fr) * 1930-12-18 1931-07-17 Machine pour exprimer le liquide de matières molles et leur mise en forme
US2149736A (en) * 1933-10-21 1939-03-07 Stanley Hiller Ltd Apparatus and method for expressing fluid
US3470815A (en) * 1966-05-05 1969-10-07 Landsverk Ab Pulp press
DE2352722A1 (de) * 1973-03-12 1974-09-26 Thaelmann Schwermaschbau Veb Schneckenpresse
DE2337967A1 (de) * 1973-07-26 1975-02-13 Guenther Abel Vorrichtung zur verminderung des wasseranteils von klaerschlamm
FR2354293A2 (fr) * 1975-08-19 1978-01-06 Alsthom Cgee Procede pour le compactage et l'essorage des boues fluides chargees de matieres fibreuses
SU670455A1 (ru) * 1977-06-14 1979-06-30 Крымское Производственное Мебельное Объединение "Крыммебель" Шнековый пресс дл получени древесных брикетов
EP0037041A1 (fr) * 1980-03-27 1981-10-07 Stake Technology Ltd. Presse pour l'extraction en continu de liquide d'une masse
GB2078542A (en) * 1980-06-18 1982-01-13 Inst Pesquisas Tech Process and apparatus for continuous processing under pressure
EP0140990A1 (fr) 1983-11-08 1985-05-15 Braunschweigische Maschinenbauanstalt AG Appareil pour extraire des liquides de matériaux fibrés, feutrés, sous forme d'écheveaux
EP0144596A2 (fr) 1983-11-08 1985-06-19 Braunschweigische Maschinenbauanstalt AG Installation pour éliminer les liquides de matières feutrées, fibreuses tombant sous forme de bandes
WO1988006090A1 (fr) * 1987-02-18 1988-08-25 Hedemora Ab Methode et appareil d'egouttage mecanique et de pressage de matiere
CN2813274Y (zh) * 2005-05-25 2006-09-06 北京中棉紫光生物科技有限公司 溶剂萃取物料脱液机

Also Published As

Publication number Publication date
DE102020111373A1 (de) 2021-10-28
DE112021002568A5 (de) 2023-03-16

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