EP3120995A1 - Vis de presse à pâte à filetage « double-flighted » - Google Patents

Vis de presse à pâte à filetage « double-flighted » Download PDF

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Publication number
EP3120995A1
EP3120995A1 EP16382139.0A EP16382139A EP3120995A1 EP 3120995 A1 EP3120995 A1 EP 3120995A1 EP 16382139 A EP16382139 A EP 16382139A EP 3120995 A1 EP3120995 A1 EP 3120995A1
Authority
EP
European Patent Office
Prior art keywords
screws
sub
thread
pulp
double
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
Application number
EP16382139.0A
Other languages
German (de)
English (en)
Other versions
EP3120995B1 (fr
Inventor
Guillermo Garcia Gil
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.)
Talleres Mercier SA
Original Assignee
Talleres Mercier SA
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 Talleres Mercier SA filed Critical Talleres Mercier SA
Priority to PL16382139T priority Critical patent/PL3120995T3/pl
Priority to MA39593A priority patent/MA39593B1/fr
Publication of EP3120995A1 publication Critical patent/EP3120995A1/fr
Application granted granted Critical
Publication of EP3120995B1 publication Critical patent/EP3120995B1/fr
Priority to HRP20201058TT priority patent/HRP20201058T1/hr
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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C13B10/08—Extraction of sugar from sugar beet with water
    • C13B10/10—Continuous processes
    • C13B10/102—Continuous processes having rotatable means for agitation or transportation
    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C13B10/08—Extraction of sugar from sugar beet with water
    • C13B10/12—Details of extraction apparatus, e.g. arrangements of pipes or valves

Definitions

  • the present invention as expressed in the title of this specification, relates to a double-flight thread sub-screw system for use in horizontal volumetric presses having two parallel horizontal sub-screws.
  • the field of application of the present invention is the manufacture of press machines commonly used in the sugar industry, enhancing the performance of the aforementioned presses, based on the optimisation of the cleaning of the accumulated pulp that blocks the filtering surface, preventing the dewatering, mixing and crushing thereof, as well as a greater labyrinth effect of the path travelled by the pulp through the press. That is, a geometric seal that prevents the backward movement of the product when compressed.
  • the yield from the pressing of exhausted sugar beet pulp in the aforementioned presses conditions the subsequent final thermal drying processes, with the ensuing savings in fuel.
  • This thermal drying is frequently carried out at drying plants/rotary ovens where the product is dried until reaching approximately 90 % of dry matter, whereupon it undergoes final pressing into pellets, prior to being marketed as cattle feed.
  • the aforementioned horizontal volumetric presses having two parallel screws are also used for other waste generated at sugar factories, such as sugar beet leaves and stems, chicory pulp, fish waste, meat waste, agricultural by-products such as soy, starch, orange peel, alfalfa, potato, etc., treatment of waste and, in general, all types of products to which value is added by the pressing process carried out.
  • EP0773100B1 "Screw press for dehydrating fibrous materials," owned by BABBINI & C SAS FLLI, provides a press provided with a pair of parallel screws, with double-flighted threads, wherein the height of one of the threads is significantly lower than that of the other. That is, they are double-thread screws wherein use is made of a second thread having a height comprised between 50 and 60 mm, substantially lower than the height of the first thread. Additionally, neither do the threads have a constant total height.
  • the "Double-start thread pulp press screws” provide, with respect to the general state of the art and, in particular, with respect to the aforementioned invention of BABBINI & C SAS FLLI, a horizontal double-screw press wherein the screws have a double thread with the same height, housed such as to prevent them from colliding with each other and the use of which provides, in combination with the incorporation of a scraping/cleaning edge on the outer end of the threads that form the press screws, the following advantages or effects that result in an enhancement of total press performance.
  • each sub-screw includes the following specifications:
  • each sub-screw is formed according to two thread flights or edges at the same distance to the filtering cage, which is constant and, once mounted on the volumetric press, said distance is comprised between one and two millimetres from the filtering cage or envelope that contains the pulp.
  • both the first-flight and second-flight thread edge have a thread extension or scraping/cleaning in the manner of abrasion-resistant hardfacing provided by overlay welding with a blade effect along its travel path through the interior of the filtering cage, based on its end, which forms an obtuse angle with the filtering cage itself, having a scraping/cleaning effect that forms the lead edge of all the threads of each of the two sub-screws, on the side carrying out the compression of the pulp, maintaining a constant distance throughout its outer perimeter.
  • each sub-screw contains a second thread flight or edge (2) identical to the first thread flight or edge (1).
  • each sub-screw is formed according two thread flights (1, 2) introduced inside a longitudinal cage (4) or envelope, of equal constant distance in relation to the interior of the longitudinal cage (4) itself, for positioning in its sweep through the interior of the filtering cage (4). Said minimum distance is comprised between one and two millimetres.
  • figure 3 shows the thread edge (1) with an abrasion-resistant scraper/cleaner (5) having identical configuration for the second-flight threads (2).
  • the thread flights or edges (1, 2) move the pulp (6) with the scraper/cleaner (5), consequently cleaning the pulp layer (6) that blocks the perforated surface of the filtering cage (4) and differentiating between a prior area of the filtering cage (4) along its travel path where dewatering is reduced (7), followed by another, subsequent area where dewatering is high (8).
  • the yields obtained in the same horizontal volumetric press having two parallel horizontal screws are compared by means of certified trials at a sugar factory, making use of two single-flighted screws, with the use of the screws object of the present invention, showing an increase in dry matter comprised between 2 % and 2.5 %.
  • the double flighted threads (2) in only one section of each of the two sub-screws, being, at the same time, identical to the first thread flight (1) for positioning in its sweep through the interior of the filtering cage (4) at a minimum distance therefrom comprised between one and two millimetres.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Paper (AREA)
  • Fodder In General (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Filtering Materials (AREA)
  • Food-Manufacturing Devices (AREA)
  • Confectionery (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)
EP16382139.0A 2015-07-20 2016-03-30 Vis de presse à pâte à filetage « double-flighted » Active EP3120995B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL16382139T PL3120995T3 (pl) 2015-07-20 2016-03-30 Ślimaki z gwintem dwuzgarniakowym prasy do pulpy
MA39593A MA39593B1 (fr) 2015-07-20 2016-03-30 Vis de presse à pâte à filetage « double-flighted »
HRP20201058TT HRP20201058T1 (hr) 2015-07-20 2020-07-06 Vijci s navojem s dva koraka za prešanje pulpe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES201531067A ES2551254B2 (es) 2015-07-20 2015-07-20 Hélices de prensa pulpa con doble paso de espiras

Publications (2)

Publication Number Publication Date
EP3120995A1 true EP3120995A1 (fr) 2017-01-25
EP3120995B1 EP3120995B1 (fr) 2020-04-22

Family

ID=54478476

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16382139.0A Active EP3120995B1 (fr) 2015-07-20 2016-03-30 Vis de presse à pâte à filetage « double-flighted »

Country Status (7)

Country Link
EP (1) EP3120995B1 (fr)
EA (1) EA035769B1 (fr)
ES (2) ES2551254B2 (fr)
HR (1) HRP20201058T1 (fr)
MA (1) MA39593B1 (fr)
PL (1) PL3120995T3 (fr)
WO (1) WO2017013282A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020104767A1 (fr) * 2018-11-19 2020-05-28 De Smet Rosedowns Limited Presse améliorée

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119162A (en) * 1935-03-05 1938-05-31 Hartner Hans Andreas Screw press
DE2055547A1 (de) * 1970-11-12 1972-05-18 Maschinenfabrik Selwig & Lange, 3300 Braunschweig Schneckenpresse mit einer oder mehreren liegend angeordneten achsparallelen Schnecken
WO1994013383A1 (fr) * 1992-12-14 1994-06-23 Flurial S.A. Dispositif de filtrage auto-nettoyant pour fluides renfermant des particules solides
EP0698681A1 (fr) * 1994-08-10 1996-02-28 SORGHO AGRO-INDUSTRIEL ET PAPETIER S.A.I.S. Société Anonyme Procédé de démoellage de plantes à moelle, en particulier sorgho
DE19715173A1 (de) * 1996-04-25 1997-11-06 Andritz Patentverwaltung Schneckenpresse zum Abtrennen von Flüssigkeiten aus Feststoff-Flüssigkeits-Mischungen
WO2005025846A1 (fr) * 2003-09-12 2005-03-24 New Pressing Technology Di Babbini Maria Teresa E C. S.R.L. Presse a vis pour comprimer de la matiere fibreuse, en particulier de la pulpe de betterave sucriere
CN2897633Y (zh) * 2006-02-20 2007-05-09 顾强华 一种榨油机
US20150040779A1 (en) * 2013-07-18 2015-02-12 Jeong Hwan OH Screw press dewatering device using shearing blade

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3461793A (en) * 1967-06-26 1969-08-19 Stord Bartz Industri As Screw presses
IT1279683B1 (it) * 1995-11-10 1997-12-16 Babbini & C Sas Flli Pressa disidratante a vite
AU2013219145B2 (en) * 1997-02-10 2015-08-20 The Track Shop Pty Ltd Abrasion resistant surface coatings and method of forming same
US6550376B2 (en) * 2001-01-23 2003-04-22 Robert Boyd Johnston Twin screw press with interrupted flights

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2119162A (en) * 1935-03-05 1938-05-31 Hartner Hans Andreas Screw press
DE2055547A1 (de) * 1970-11-12 1972-05-18 Maschinenfabrik Selwig & Lange, 3300 Braunschweig Schneckenpresse mit einer oder mehreren liegend angeordneten achsparallelen Schnecken
WO1994013383A1 (fr) * 1992-12-14 1994-06-23 Flurial S.A. Dispositif de filtrage auto-nettoyant pour fluides renfermant des particules solides
EP0698681A1 (fr) * 1994-08-10 1996-02-28 SORGHO AGRO-INDUSTRIEL ET PAPETIER S.A.I.S. Société Anonyme Procédé de démoellage de plantes à moelle, en particulier sorgho
DE19715173A1 (de) * 1996-04-25 1997-11-06 Andritz Patentverwaltung Schneckenpresse zum Abtrennen von Flüssigkeiten aus Feststoff-Flüssigkeits-Mischungen
WO2005025846A1 (fr) * 2003-09-12 2005-03-24 New Pressing Technology Di Babbini Maria Teresa E C. S.R.L. Presse a vis pour comprimer de la matiere fibreuse, en particulier de la pulpe de betterave sucriere
CN2897633Y (zh) * 2006-02-20 2007-05-09 顾强华 一种榨油机
US20150040779A1 (en) * 2013-07-18 2015-02-12 Jeong Hwan OH Screw press dewatering device using shearing blade

Also Published As

Publication number Publication date
MA39593B1 (fr) 2020-05-29
EA035769B1 (ru) 2020-08-07
WO2017013282A1 (fr) 2017-01-26
ES2551254A1 (es) 2015-11-17
PL3120995T3 (pl) 2020-11-02
EP3120995B1 (fr) 2020-04-22
HRP20201058T1 (hr) 2020-10-30
EA201790607A1 (ru) 2018-06-29
ES2551254B2 (es) 2016-03-22
ES2788722T3 (es) 2020-10-22

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