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EP0327610B1 - Dispositif permettant l'epluchage et l'egrenage des grains de mais - Google Patents

Dispositif permettant l'epluchage et l'egrenage des grains de mais Download PDF

Info

Publication number
EP0327610B1
EP0327610B1 EP88905651A EP88905651A EP0327610B1 EP 0327610 B1 EP0327610 B1 EP 0327610B1 EP 88905651 A EP88905651 A EP 88905651A EP 88905651 A EP88905651 A EP 88905651A EP 0327610 B1 EP0327610 B1 EP 0327610B1
Authority
EP
European Patent Office
Prior art keywords
housing
rotor
stator
segments
knub
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.)
Expired - Lifetime
Application number
EP88905651A
Other languages
German (de)
English (en)
Other versions
EP0327610A1 (fr
Inventor
Roman Müller
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Priority to AT88905651T priority Critical patent/ATE67690T1/de
Publication of EP0327610A1 publication Critical patent/EP0327610A1/fr
Application granted granted Critical
Publication of EP0327610B1 publication Critical patent/EP0327610B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
    • B02B3/04—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming by means of rollers

Definitions

  • the present invention relates to a device according to the preamble of claim 1.
  • a device of this type is known from GB-A-701169.
  • corn is processed in large quantities to produce a wide variety of end products.
  • their disinfection and grinding for the other uses is carried out in a mill-based way.
  • the end products of mill processing are mainly supplied to the animal feed and oil industry, the brewery industry, the Polish Tagries production, the snack product industry or the corn flake production.
  • Each of these uses places different demands on mill processing, with the investment and processing costs for mill processing increasing in the order of the uses mentioned.
  • the device according to the invention is used to produce flaking grits, which are the starting product for cornflake production. This is where the demands on the milling shop are highest. For this, corn disinfection and peeling has been carried out in the "Beall sterilizer".
  • This has a stator, in the stator housing of which a rotor is rotatably mounted.
  • the stator housing and the rotor form an at least approximately annular treatment space in cross-section and have knobs on their mutually facing sides.
  • the inside of the stator is also divided in the circumferential direction alternately into diarrhea segments provided with knobs or perforated perforations.
  • This known device also has a two-part Stator housing, the two halves of which are separated by a horizontal plane and can be pivoted relative to one another about a hinge axis and can be screwed together in the closed state. If the upper half of the stator housing is removed (folded up), the lower half forms a trough which is semicircular in cross section and in which the rotor held in the end bearing half-shells lies. The lower half of the treatment room is therefore not accessible by folding up the upper stator housing half. The rotor must also be removed for this.
  • the Beall sterilizer also has a conical working space that increases in diameter from the inlet end to the discharge end, and the stator housing and the rotor are accordingly conical.
  • the object of the present invention is to improve a device of the type mentioned in such a way that the treatment room is easily accessible in the event of a fault and the peeling and sterilization process can be carried out optimally. This object is achieved by the characterizing features of claim 1.
  • the radially adjustable nub segments provided on the detachable housing wall parts can be used to remove blockages in the treatment room while the machine is running. Furthermore, the cross section of the treatment room can be adapted to the condition of the material to be processed without axial displacement of the rotor.
  • the treatment area which is ring-shaped in cross section, has the same or at least approximately the same diameter over its entire length, its length can be increased without the width and height of the machine taking up more space.
  • this measure greatly reduces the amount of dust in the discharge and the required drive power is reduced with the same product throughput.
  • the low dust content in the discharge has the advantage that it does not have to be fed to the other classifiers together with the diarrhea as before. The effort for the subsequent sighting is thereby reduced.
  • Another advantage is that with the same rotor length as the Beall sterilizer and the same quality of work, the output can be doubled with half the power requirement.
  • the treatment room in the event of a malfunction can be uncovered with a few hand movements over a circumferential angle of approximately 270 ° and the malfunction can be remedied.
  • the knob segments subjected to heavy wear can be replaced both on the stator side and on the rotor side without the rotor having to be replaced. This significantly reduces machine downtimes and maintenance costs.
  • the stator 1 of the device shown in FIGS. 1 and 2 has a stator housing 2 which surrounds a rotor 3 which is rotatably mounted therein and is mounted on the horizontal support frame 5 of a stand 4 and is open at the bottom into a subsequent funnel 6.
  • the diarrhea is drained through this.
  • the stator housing 2 is closed at the ends by an end plate 10 and 11, the upper sides of which are connected and stiffened by a longitudinal strut 12. This carries a further knob segment 13, the knobs directed into the treatment space 9 lying diametrically opposite those of the knob segment 8.
  • She is also with Provide two adjustable aspiration slots A) so that the area of the diarrhea can be adequately ventilated.
  • the screw connection between the longitudinal strut 12 and the knob segment 13 can be made by means of adjusting screws with which the radial distance of the knob segment 13 from the rotor 3 can be adjusted.
  • the L-profile strips 18, 19, the U-profile strut 20 with the knob segment 21 and the end plates 17 form a structural unit.
  • the adjusting screws 23 When the adjusting screws 23 are turned, for which the manual effort is low, the entire structural unit is displaced towards or away from the longitudinal center axis of the treatment room. If the screw connection between the angle profile strips 16 and the adjacent end plates 10, 11 is released, both housing wall parts 14, 15, that is to say the structural unit 17 to 21 including the angle profile strips 16, can be removed to the side and the treatment room 9 with the rotor 3 can be largely exposed will.
  • a hollow cross-section with an octagonal cross section and end stub axles 25 forms the core 24 of the rotor 3. With these, it is mounted so that it can be driven in the pivot bearings of the stator housing 2.
  • circular segment-like knob plates 26 are releasably screwed onto its flat sections in cross section. These knob plates 26 are studded with knobs, the knobs in the entry area (FIG. 1, left) being arranged helically or structured.
  • the enveloping surface of the rotor 3 is a cylinder jacket. Accordingly, the treatment room 9 approximately has a ring-cylindrical shape in cross section. The relative speed between the stator and rotor-side knobs is therefore the same over the entire length of the treatment room.
  • the enveloping surface can, however, also be slightly conical, without thereby jeopardizing the advantages of the invention as a whole.
  • the width of the treatment room 9 can be changed by the opposing knob plates 21 of the two housing wall parts 14, 15 with the adjacent diarrhea segments 22 against the rotor 3 or from be moved away from this.
  • the width of the treatment room 9 in the entry area can be made larger or smaller than in the discharge area.
  • the shape of the treatment room 9 can therefore be optimally adapted to the quality of the maize to be processed.
  • the maize to be treated is poured into the treatment room 9 through an inlet nozzle 27 in the stator housing 2. Due to the helically structured surface of the rotor in the inlet area, the maize kernels are drawn into the treatment room, ground between the knobs and pressed against the far end, where the endosperm parts forming the repulsion get into a chamber 28 between the rotor 3 and the end plate 11.
  • the end plate 11 is penetrated by an outlet opening 29, through which the kick falls into a discharge funnel 30 and which can be closed with a flap 31. Its closing force can be adjusted by means of an adjustment weight 32 which can be moved on a weighing arm 33 which is firmly connected to the flap 31.
  • the throughput time of the endosperm parts through the treatment room 9 is influenced by the position of the adjustment weight 32.
  • the husk, germ and endosperm parts are separated and the loosened husks, the germs and a small proportion of the endosperm parts fall through the diarrhea segments 22 into the funnel 6.
  • the larger endosperm parts pass through the treatment zone 9 and pass through as a kick the outlet opening 29 into the discharge funnel 30.
  • both the knob plates 26 and the knob segments 8, 13 and 21 are subject to severe wear. If the knob plates 26 on the rotor 3 are to be replaced, it is sufficient to completely remove one of the two housing wall parts 14 or 15 after loosening the screw connections 34. Then one of the knob plates 26 can be loosened and replaced on the rotor 3. If the four knob segments 8, 13 and 21 are to be replaced, both wall parts 14 and 15 are removed in the manner described after loosening the screw connections 34 and the worn knob segments are replaced.
  • both the stator and the rotor are formed symmetrically with respect to a vertical plane of symmetry perpendicular to the rotor axis, in which the inlet connector 27 lies.
  • the product is drawn in through an opposite helical structure resulting from the symmetry on the rotor 3 in the entry area and likewise the larger endosperm parts are ejected at both ends of the rotor housing into corresponding discharge funnels 30 and 30 '.
  • the grain material fed through the inlet nozzle 27 is divided in the treatment room and deflected in two opposite directions. In both directions, the grain is subjected to the same treatment and the diarrhea is caught in two separate funnels 6, 6 'and brought together again for further processing. Also the repulsion discharged from the funnels 30 and 30 ', that is, the larger endosperm parts are combined for further processing.
  • FIG. 6 shows a manufacturing plant for flaking grits, in which a device 35 according to the invention for peeling and sterilizing the corn kernels is integrated.
  • a device 35 according to the invention for peeling and sterilizing the corn kernels is integrated.
  • the kernels After the special aggregates 36 for the preparation of the corn kernels by means of water and / or steam, the kernels reach the device 35 according to the invention. Thanks to the flour- and shell-free repulsion, this can be fed directly to a plan sifter 38 via a cyclone 37. It is not necessary to combine the push-off with the diarrhea, as is necessary when using known devices (because of the flour and shell content of up to 7% in the push-off).
  • the diarrhea passes through further cyclones 39 and 40 to a turbosifter 41 which separates the endosperm parts contained in the diarrhea and feeds them to a second plan sifter 43 via a weighing device 42.
  • a turbosifter 41 which separates the endosperm parts contained in the diarrhea and feeds them to a second plan sifter 43 via a weighing device 42.
  • the structurally more complex cleaning route for diarrhea with a turbosifter can be made smaller and therefore less expensive since it is no longer burdened by the push-off as before.
  • the same reference numerals designate the same parts as in the examples according to FIGS. 1 to 5.
  • the example according to FIG. 7 differs from those in that the radial distance between the diarrhea segments 22 on the one hand and the Rotor 3 is also adjustable on the other hand.
  • the diarrhea segments 22 are stiffened at the ends by flange plates 36, which are pierced by a slot 37. These flange plates 36 bear against the end plates 17.
  • the area of the diarrhea segment 22 adjoining the profile strip 18 is bent outwards, so that it forms a contact surface 38 against the latter.
  • the flange plate 36 is attached to the end plate a screw 39 guided through the slot 37 can be screwed tightly and also overlaps the other, outwardly angled end region of the diarrhea segment 22 with an offset 40 - Profile strut 20 seated threaded shaft 42 engages.
  • a screw 39 guided through the slot 37 can be screwed tightly and also overlaps the other, outwardly angled end region of the diarrhea segment 22 with an offset 40 - Profile strut 20 seated threaded shaft 42 engages.
  • a nut 43 By tightening a nut 43 on the threaded shaft 42, the flange plate 36 is firmly connected to the U-profile strut 20.
  • the stator housing 2 is of the same design as in the example according to FIG. 7.
  • the design of the core 3 is different.
  • a knob plate 26 is not attached to each flat section of the core 24 with an octagonal cross section, but only on every second.
  • the intermediate sections are covered with a flat blind plate 24.
  • the exemplary embodiment according to FIG. 9 differs from that according to FIG. 7 in that the diarrhea segments 22 are not curved parallel to the jacket of the rotor 3, but are flat.
  • knob segments are missing (in contrast to the preceding examples) on the stator side.
  • the nub segments 8 and 13 are replaced by blind plates 45 and the nub segments 21 by diarrhea segments 46.
  • the treatment room 9 has an octagonal ring cross section.
  • nub segments 8 and 13 of the stator housing are present, whereas the nub segments 21 are replaced by diarrhea segments.

Landscapes

  • Crushing And Pulverization Processes (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Cereal-Derived Products (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Pretreatment Of Seeds And Plants (AREA)

Claims (21)

1. Dispositif permettant l'épluchage et l'égrenage des grains de maïs avec un stator (1) dont le bord (2) supporte à pivot un rotor (3), qui est équipé au moins partiellement de noppes (pointes) dans la zone l'enceinte de traitement (9) tandis que la face intérieure du corps de stator délimitant l'enceinte de traitement (9) présente des segments de criblage (21, 22) pourvus de tamis perforés, caractérisé en ce que le corps de stator (2) présente, outre au moins une partie de paroi de corps fixe, au moins deux parties de parois de corps amovibles (14, 15) et qu'au moins les parties de parois de corps amovibles (14, 15) présentent au moins un segment à noppes (21) et peuvent être déplacées radialement vers l'axe de rotation du rotor.
2. Dispositif selon la revendication 1, caractérisé en ce que le rotor (3) présente très approximativement le même diamètre dans la zone de l'enceinte de traitement (9).
3. Dispositif selon la revendication 1, caractérisé en ce que des segments de noppes (8,13, 21) et des segments de criblage (21, 22) tournés alternativement vers le corps de stator (2) et l'enceinte de traitement (9) sont prévus et qu'au moins l'un des segments de noppes (21) est monté sur le corps de stator (2), avec possibilité de déplacement radial vers l'axe de rotation du rotor.
4. Dispositif selon la revendication 1, caractérisé en ce que les deux parties de parois de corps amovibles (14, 15) sont disposées symétriquement par rapport à un plan contenant l'axe de rotation du rotor.
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que des moyens de réglage (23) pour le déplacement de segments de noppes (21) sont montés sur le côté extérieur du corps du stator.
6. Dispositif selon la revendication 5, caractérisé en ce que les moyens de réglage (23) sont disposés dans les zones terminales de l'enceinte de traitement (9).
7. Dispositif selon l'une des revendications 1 à 4 dans lequel le stator présente un plan d'appui horizontal, caractérisé en ce que le plan précité est disposé perpendiculairement au plan d'appui.
8. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le corps de stator (2) est subdivisé en quatre secteurs de corps et que deux de ces secteurs de corps constituent des parties de parois de corps amovibles (14, 15).
9. Dispositif selon la revendication 8, caractérisé en ce que les deux parties de parois de corps amovibles (14, 15) constituant des secteurs de corps présentent, outre le segment à noppes (21), deux segments de criblage (22).
10. Dispositif selon la revendication 8, caractérisé en ce que deux secteurs de corps opposés et recoupant le plan sont assemblés de manière fixe au stator (1).
11. Dispositif selon la revendication 10, caractérisé en ce que les secteurs de corps assemblés de manière fixe au stator (1) présentent chacun un segment à noppes (8, 13).
12. Dispositif selon la revendication 11, caractérisé en ce qu'au moins l'un des deux segments à noppes (8, 13) est disposé sur le secteur de corps, avec possibilité de déplacement axial vers l'axe de rotation du rotor.
13. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que le rotor (3) présente un noyau (24) formant en coupe un polygone régulier sur lequel sont fixées des plaques à noppes (26) ayant une section en segment de cercle et pourvues de noppes.
14. Dispositif selon la revendication 13, caractérisé en ce que les plaques à noppes (26) s'étendent en une pièce sur toute la longueur de l'enceinte de traitement (9).
15. Dispositif selon la revendication 14, caractérisé en ce que les plaques à noppes (26) sont pourvues, dans la zone d'entrée de l'enceinte de traitement (9), de noppes ou de nervures disposées hélicoïdalement.
16. Dispositif selon l'une des revendications 13 à 15, caractérisé en ce que la surface d'enveloppe du rotor (3) est une surface cylindrique.
17. Dispositif selon l'une des revendications 13 à 15, caractérisé en ce que la surface d'enveloppe du rotor (3) est une surface conique qui est rétrécie vers l'extrémité d'entrée ou d'évacuation de l'enceinte de traitement (9).
18. Dispositif selon l'une des revendications 1 à 7, dans lequel le corps de stator (2) présente un orifice d'entrée (27) à une extrémité de l'enceinte de traitement (9) et un orifice d'évacuation (29) à l'autre extrémité, caractérisé en ce que le rotor (3) et le corps de stator (2) sont disposés symétriquement par rapport à un plan recoupant perpendiculairement l'axe du rotor dans la zone de l'orifice d'entrée (27).
19. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que la distance radiale des segments de criblage (22, 46) par rapport au rotor (3) peut être réglée.
20. Dispositif selon la revendication 8, caractérisé en ce que les parties de parois de corps amovibles (14, 15) sont constituées sous forme de segments de criblage (figures 10 et 11).
21. Procédé permettant l'épluchage et l'égrenage des grains de maïs, dans lequel les grains de maïs sont amenés dans une enceinte de traitement (9) suivant un trajet hélicoïdal entre des surfaces pourvues de noppes et y sont décortiqués, tandis que les grains sont détachés, les enveloppes sont séparées et les petits éléments (morceaux d'enveloppes et grains) sont séparés par criblage, caractérisé en ce que la vitesse relative entre les surfaces du rotor équipé de noppes d'une part et le corps de stator d'autre part est essentiellement constante sur toute la longueur de l'enceinte de traitement.
EP88905651A 1987-07-22 1988-07-18 Dispositif permettant l'epluchage et l'egrenage des grains de mais Expired - Lifetime EP0327610B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88905651T ATE67690T1 (de) 1987-07-22 1988-07-18 Vorrichtung zum schaelen und entkeimen von maiskoernern.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2783/87A CH673596A5 (fr) 1987-07-22 1987-07-22
CH2783/87 1987-07-22

Publications (2)

Publication Number Publication Date
EP0327610A1 EP0327610A1 (fr) 1989-08-16
EP0327610B1 true EP0327610B1 (fr) 1991-09-25

Family

ID=4241494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905651A Expired - Lifetime EP0327610B1 (fr) 1987-07-22 1988-07-18 Dispositif permettant l'epluchage et l'egrenage des grains de mais

Country Status (10)

Country Link
US (1) US5036757A (fr)
EP (1) EP0327610B1 (fr)
AT (1) ATE67690T1 (fr)
CH (1) CH673596A5 (fr)
DD (1) DD272417A5 (fr)
DE (2) DE3809026A1 (fr)
HU (1) HU210050B (fr)
SU (1) SU1762742A3 (fr)
WO (1) WO1989000454A1 (fr)
ZA (1) ZA885373B (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN102614954A (zh) * 2012-04-24 2012-08-01 周立汉 一种颗粒粮食加工设备

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JP3266167B2 (ja) * 1993-08-06 2002-03-18 株式会社サタケ 竪型研削式精穀機の抵抗体調節装置
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US5938131A (en) * 1997-05-16 1999-08-17 Consolidated Process Machinery, Inc. Hammermill with polygonal screen, regrind deflectors and hinged door mounting screen sections
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ITPD20020161A1 (it) * 2002-06-14 2003-12-15 Agrex Spa Macchina degerminatrice, in particolare per la degerminazione di cereali.
DE10251490A1 (de) * 2002-11-04 2004-05-13 Bühler AG Verfahren und Vorrichtung zum Schälen und Entkeimen von Getreide
US7246762B2 (en) * 2003-04-21 2007-07-24 Cargill, Incorporated Process of forming corn flaking grits of improved quality with minimization of production of corn doubles
CN1301797C (zh) * 2004-04-27 2007-02-28 任光利 一种磨粉机磨辊、磨辊表面磨齿的加工方法及磨辊的用途
EP1721672A1 (fr) * 2005-05-10 2006-11-15 Costimex S.A. Procédé de traitement d'un mélange de grains de mais et dispositif pour sa mise en oeuvre
JP4849520B2 (ja) * 2006-02-11 2012-01-11 独立行政法人農業・食品産業技術総合研究機構 表面処理粒状物の製造装置、方法および表面処理粒状物
EP2010639B1 (fr) * 2006-04-25 2018-06-13 Bühler AG Procédé et installation de mondage de céréales
JP5085926B2 (ja) * 2006-12-21 2012-11-28 株式会社ダイセル ガス発生剤組成物
US7578463B2 (en) * 2007-03-13 2009-08-25 Sotsky George R Modular Rotary Grinder
US20110003065A1 (en) * 2009-07-01 2011-01-06 Buhler Ag Method for pretreating grain before milling
JP6236742B2 (ja) * 2013-12-12 2017-11-29 株式会社サタケ 搗精装置
US10722896B2 (en) * 2015-07-29 2020-07-28 Cereal Enterprises, Inc. Degerminator
JP7494988B1 (ja) * 2023-06-07 2024-06-04 株式会社サタケ 精穀装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102614954A (zh) * 2012-04-24 2012-08-01 周立汉 一种颗粒粮食加工设备

Also Published As

Publication number Publication date
ATE67690T1 (de) 1991-10-15
SU1762742A3 (ru) 1992-09-15
DE3809026A1 (de) 1989-02-02
DD272417A5 (de) 1989-10-11
DE3865193D1 (de) 1991-10-31
WO1989000454A1 (fr) 1989-01-26
HU210050B (en) 1995-01-30
US5036757A (en) 1991-08-06
EP0327610A1 (fr) 1989-08-16
CH673596A5 (fr) 1990-03-30
ZA885373B (en) 1989-03-29
HUT63350A (en) 1993-08-30

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