WO2006133578A1 - Grinding machine for cereal grains - Google Patents

Grinding machine for cereal grains Download PDF

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Publication number
WO2006133578A1
WO2006133578A1 PCT/CH2006/000214 CH2006000214W WO2006133578A1 WO 2006133578 A1 WO2006133578 A1 WO 2006133578A1 CH 2006000214 W CH2006000214 W CH 2006000214W WO 2006133578 A1 WO2006133578 A1 WO 2006133578A1
Authority
WO
WIPO (PCT)
Prior art keywords
grinding
air
grinding machine
sieve
tool
Prior art date
Application number
PCT/CH2006/000214
Other languages
German (de)
French (fr)
Inventor
Markus Brockfeld
Frank-Otto Görlitz
Original Assignee
Bühler 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 Bühler AG filed Critical Bühler AG
Priority to CN2006800210357A priority Critical patent/CN101203313B/en
Publication of WO2006133578A1 publication Critical patent/WO2006133578A1/en

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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
    • 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 invention relates to a grinding machine for grinding or polishing cereal grains, preferably rice grains.
  • DE-OS 2640870 shows a polishing machine for grains with a polishing rotor, which is designed as a reverse truncated cone, tapering downwards and which is surrounded by a funnel-shaped screen cylinder.
  • EP-A-699478 or EP-A-646414 disclose vertical rotor machines on which grinding or polishing tools are mounted. Rotor and tools are spaced apart by a sieve, which in turn is accommodated in a screen basket.
  • the screen basket is surrounded by a housing so that sanding or polishing products can not escape uncontrollably.
  • the housing may be a solid shell or openings for viewing window.
  • the rotor can furthermore be designed as a hollow shaft and have smaller openings in the area of the tools in order to feed air and / or humidified air and / or water into the treatment space.
  • louvers in the hollow shaft polishing tools for example in the form of cams can be assigned directly and additionally have active surfaces (US-PS 4829893). The air passes through the material to be polished and the sieve and the grinding dust is sucked out of the polishing material and conveyed away.
  • the rotors may also be provided with combined tools, for example also with peeling and polishing tools as disclosed in EP-A-427504.
  • the housing is usually hinged to guide the extracted air.
  • the disadvantage here is that the screen baskets often have transverse to the air flow ribs or the distance of the air duct housing is sometimes very large and the flow rate of the permeated air in such areas is small. By transverse webs can additionally form Leewirbel.
  • the rotor is equipped with a plurality of grinding tools, which are tooth-shaped in cross section.
  • the screen cylinder is provided with tooth-shaped counterparts, so that the working space is formed zigzag-like. Due to the tooth shape and the top stone of the inlet region of the working space is designed as downwardly tapered annulus.
  • the chamfer is very short and allows only a few grains at the same time to reach the inlet area and the wear of the surrounding sieve is much higher than in the lower areas of the working space.
  • the invention has for its object to develop a grinding machine for grinding or polishing grain grains, which does not have the disadvantages of the prior art and allows for rotation of grinding tools a uniform distribution of air on the circumference.
  • a grinding tool is one-piece or segmented and has vertically arranged air outlet slots. Provided is an optimized distance between a sieve and a surrounding air duct in order to achieve a constant ratio of air flow to cross section. The distance between the sieve and the jacket is chosen so as to give the most even gap possible for a uniform air velocity.
  • areas with a further cross section for large quantities of air and areas with a narrower cross section for smaller amounts of air are available, resulting in an eccentric space for the removal of grinding flour (outside the screen) results.
  • the grinding tools can also be designed as vertical grinding bars or grinding segments with air spaces.
  • Fig. 1 a partial view of the rotor assembly of a grinding machine for rice
  • Fig. 2 a screen basket
  • Fig. 3 a segment of the grinding tool in cross section
  • Fig. 4 a surrounding the strainer air hood in cross section.
  • a not explicitly illustrated grinding machine as disclosed for example in the Applicant's patent application No. DE-A-10341223, has a vertically arranged grinding rotor 1, on whose rotor shaft 4 a grinding tool 2 with segments 5, 6 and a feed screw 7 are arranged are.
  • the first segment 6 after the feed screw 7 is conical.
  • the grinding tool 2 or the segments 5, 6 have vertical air outlet slots 3.
  • the grinding tool 2 can also be made in one piece.
  • the grinding tool 2 is enveloped by a streamlined transversely ribbed screen basket 8 with screen plates, not shown.
  • Sieve or sieve basket 8 are surrounded by an air cap 9. There are areas with a further cross section 9 for large amounts of air and areas with a narrower cross-section for smaller amounts of air available, resulting in an eccentric space for removing grinding flour outside the screen basket 8 results.

Landscapes

  • Adjustment And Processing Of Grains (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

The invention relates to a grinding machine for cereal grains, for example of rice, having a grinding tool. The grinding tool (2) has segments (5, 6) with vertically arranged air-outlet slots (3).

Description

SCHLEIFMASCHINE FÜR GETREIDEKORNER GRINDING MACHINE FOR CEREAL GRAINS
Die Erfindung betrifft eine Schleifmaschine zum Schleifen oder Polieren von Getreidekörnern, bevorzugt von Reiskörnern.The invention relates to a grinding machine for grinding or polishing cereal grains, preferably rice grains.
Schleifrotoren in Schleifmaschinen zur Bearbeitung von Getreidekörnern sind ebenso wie Poliermaschinen bekannt. So zeigt die DE-OS 2640870 eine Poliermaschine für Körner mit einem Polierläufer, der als ein umgekehrter Kegelstumpf, nach unten verjüngend ausgebildet ist und der von einem trichterförmigen Siebzylinder umgeben ist. Weiterhin offenbaren zum Beispiel die EP-A-699478 oder EP-A-646414 Maschinen mit vertikal angeordnetem Rotor, auf dem Schleif- oder Polierwerkzeuge angeordnet sind. Rotor und Werkzeuge sind beabstandet von einem Sieb umgeben, das wiederum in einen Siebkorb aufgenommen ist. Der Siebkorb ist von einem Gehäuse umgeben, so dass Schleif- oder Polierprodukte nicht unkontrolliert austreten können. Das Gehäuse kann ein Vollmantel sein oder Öffnungen für Sichtfenster aufweisen. Der Rotor kann weiterhin als Hohlwelle ausgebildet sein und kleinere Öffnungen im Bereich der Werkzeuge aufweisen um Luft und/oder befeuchtete Luft und/oder Wasser in den Behandlungsraum einzuspeisen. Ebenso können Luftschlitze in den Hohlwellen Polierwerkzeugen, zum Beispiel in Form von Nocken direkt zugeordnet sein und zusätzlich aktive Oberflächen aufweisen (US-PS 4829893). Die Luft tritt durch das Poliergut und das Sieb hindurch und das Schleifmehl wird aus dem Poliergut herausgesaugt und abgefördert.Grinding rotors in grinding machines for processing cereal grains are known as well as polishing machines. Thus, DE-OS 2640870 shows a polishing machine for grains with a polishing rotor, which is designed as a reverse truncated cone, tapering downwards and which is surrounded by a funnel-shaped screen cylinder. Further, for example, EP-A-699478 or EP-A-646414 disclose vertical rotor machines on which grinding or polishing tools are mounted. Rotor and tools are spaced apart by a sieve, which in turn is accommodated in a screen basket. The screen basket is surrounded by a housing so that sanding or polishing products can not escape uncontrollably. The housing may be a solid shell or openings for viewing window. The rotor can furthermore be designed as a hollow shaft and have smaller openings in the area of the tools in order to feed air and / or humidified air and / or water into the treatment space. Likewise, louvers in the hollow shaft polishing tools, for example in the form of cams can be assigned directly and additionally have active surfaces (US-PS 4829893). The air passes through the material to be polished and the sieve and the grinding dust is sucked out of the polishing material and conveyed away.
Die Rotoren können auch mit kombinierten Werkzeugen versehen sein, so zum Beispiel auch mit Schäl- und Polierwerkzeugen wie in der EP-A-427504 offenbart.The rotors may also be provided with combined tools, for example also with peeling and polishing tools as disclosed in EP-A-427504.
Um das aus den Schlitzen des Siebes austretende Schleifmehl resp. den Polierstaub entfernen zu können, ist das Gehäuse meist aufklappbar, um die abgesaugte Luft zu führen. Nachteilig ist hierbei, dass die Siebkörbe oft quer zur Luftströmung liegende Rippen aufweisen bzw. der Abstand des Luftführungsgehäuses zum Teil sehr gross ist und die Strömungsgeschwindigkeit der durchgesetzten Luft in solchen Bereichen klein ist. Durch Querstege können sich zusätzlich Leewirbel bilden.To the emerging from the slots of the sieve grinding flour resp. To remove the polishing dust, the housing is usually hinged to guide the extracted air. The disadvantage here is that the screen baskets often have transverse to the air flow ribs or the distance of the air duct housing is sometimes very large and the flow rate of the permeated air in such areas is small. By transverse webs can additionally form Leewirbel.
Die Herstellung von Hohlwellen mit einer Vielzahl von Öffnungen ist aufwändig und aufgrund der geringen Öffnungsquerschnitte können starke Druckverluste auftreten, was zur Luftdurchsatzverringerung und7oder leistungsstärkeren Ventilatoren führt.The production of hollow shafts with a large number of openings is complex and, due to the small opening cross-sections, strong pressure losses can occur, which leads to the reduction of air flow rate and / or more powerful fans.
Bei einer Maschine zum Reinigen und Schleifen von Körnern gemäss der JP-A- 06327989 ist der Rotor mit mehreren Schleifwerkzeugen bestückt, die im Querschnitt zahnförmig sind.. Der Siebzylinder ist mit zahnförmigen Gegenstücken versehen, so dass der Arbeitsraum zickzack-artig ausgebildet ist. Auf Grund der Zahnform auch des obersten Steines ist der Einlaufbereich des Arbeitsraumes als sich nach unten verjüngender Ringraum ausgebildet. Die Abschrägung ist jedoch sehr kurz und ermöglicht nur wenigen Körnern gleichzeitig in den Einlaufbereich zu gelangen und der Verschleiss des umgebenden Siebes ist wesentlich höher als in den tiefer gelegenen Bereichen des Arbeitsraumes.In a machine for cleaning and grinding grains according to JP-A-06327989, the rotor is equipped with a plurality of grinding tools, which are tooth-shaped in cross section. The screen cylinder is provided with tooth-shaped counterparts, so that the working space is formed zigzag-like. Due to the tooth shape and the top stone of the inlet region of the working space is designed as downwardly tapered annulus. However, the chamfer is very short and allows only a few grains at the same time to reach the inlet area and the wear of the surrounding sieve is much higher than in the lower areas of the working space.
Der Erfindung liegt die Aufgabe zugrunde, eine Schleifmaschine zum Schleifen oder Polieren von Getreidekörnern zu entwickeln, die die Nachteile des Standes der Technik nicht aufweist und die bei Rotation von Schleifwerkzeugen eine gleichmässige Verteilung der Luft auf dem Umfang ermöglicht.The invention has for its object to develop a grinding machine for grinding or polishing grain grains, which does not have the disadvantages of the prior art and allows for rotation of grinding tools a uniform distribution of air on the circumference.
Insbesondere soll einerseits eine gleichmässige Luftgeschwindigkeit zwischen Sieb und äusserem Luftführungsgehäuse und andererseits eine wirtschaftlichere Lufteinspeisung erreicht werden um ein gleichbleibendes Verhältnis von Luftmenge zu Querschnitt sowie eine etwa konstante Strömungsgeschwindigkeit zu erreichen.In particular, on the one hand a uniform air velocity between the wire and the outer air duct housing and on the other hand a more economical air feed to be achieved in order to achieve a constant ratio of air flow to cross section and an approximately constant flow rate.
Die Aufgabe ist mit den Merkmalen des Patentanspruchs gelöst. Ein Schleifwerkzeug ist einteilig oder segmentiert und weist vertikal angeordnete Luftaustrittsschlitze auf. Vorgesehen ist ein optimierter Abstand zwischen einem Sieb und einer dieses umgebenden Lufthaube, um ein gleichbleibendes Verhältnis von Luftmenge zu Querschnitt zu erreichen. Der Abstand zwischen Sieb und Mantelgehäuse ist so gewählt, dass ein möglichst gleichmässiger Spalt für eine gleichmässige Luftgeschwindigkeit gegeben ist.The object is solved with the features of the claim. A grinding tool is one-piece or segmented and has vertically arranged air outlet slots. Provided is an optimized distance between a sieve and a surrounding air duct in order to achieve a constant ratio of air flow to cross section. The distance between the sieve and the jacket is chosen so as to give the most even gap possible for a uniform air velocity.
In weiterer Ausbildung sind Bereiche mit einem weiteren Querschnitt für grosse Luftmengen und Bereiche mit engerem Querschnitt für kleinere Luftmengen vorhanden, woraus ein exzentrischer Raum zur Abführung von Schleifmehl (ausserhalb des Siebes) resultiert.In a further embodiment, areas with a further cross section for large quantities of air and areas with a narrower cross section for smaller amounts of air are available, resulting in an eccentric space for the removal of grinding flour (outside the screen) results.
Alternativ können die Schleifwerkzeuge auch als vertikale Schleifleisten oder Schleifsegmente mit Luftfreiräumen ausgebildet sein.Alternatively, the grinding tools can also be designed as vertical grinding bars or grinding segments with air spaces.
Die Erfindung wird nachfolgend in einem Ausführungsbeispiel an Hand einer Zeichnung näher beschrieben. Die Zeichnung zeigt inThe invention will be described below in an embodiment with reference to a drawing. The drawing shows in
Fig. 1 : eine Teilansicht der Rotoranordnung einer Schleifmaschine für ReisFig. 1: a partial view of the rotor assembly of a grinding machine for rice
Fig. 2: einen SiebkorbFig. 2: a screen basket
Fig. 3: ein Segment des Schleifwerkzeuges im QuerschnittFig. 3: a segment of the grinding tool in cross section
Fig. 4: eine, den Siebkorb umgebende Lufthaube im Querschnitt.Fig. 4: a surrounding the strainer air hood in cross section.
Eine nicht explizit dargestellte Schleifmaschine, wie sie zum Beispiel in der Patentanmeldung Nr. DE-A-10341223 der Anmelderin offenbart ist, weist einen vertikal angeordneten Schleifrotor 1 auf, auf dessen Rotorwelle 4 ein Schleifwerkzeug 2 mit Segmenten 5, 6 und eine Speiseschnecke 7 angeordnet sind. Das erste Segment 6 nach der Speiseschnecke 7 ist konisch ausgebildet. Das Schleifwerkzeug 2 bzw. die Segmente 5, 6 weisen vertikale Luftaustrittsschlitze 3 auf.A not explicitly illustrated grinding machine, as disclosed for example in the Applicant's patent application No. DE-A-10341223, has a vertically arranged grinding rotor 1, on whose rotor shaft 4 a grinding tool 2 with segments 5, 6 and a feed screw 7 are arranged are. The first segment 6 after the feed screw 7 is conical. The grinding tool 2 or the segments 5, 6 have vertical air outlet slots 3.
Anstelle der Segmente 5, 6 kann das Schleifwerkzeug 2 auch einteilig ausgeführt sein.Instead of the segments 5, 6, the grinding tool 2 can also be made in one piece.
Das Schleifwerkzeug 2 ist von einem strömungsgünstig quergerippten Siebkorb 8 mit nicht dargestellten Siebblechen umhüllt.The grinding tool 2 is enveloped by a streamlined transversely ribbed screen basket 8 with screen plates, not shown.
Sieb bzw. Siebkorb 8 sind von einer Lufthaube 9 umgeben. Es sind Bereiche mit einem weiteren Querschnitt 9 für grosse Luftmengen und Bereiche mit engerem Querschnitt für kleinere Luftmengen vorhanden, woraus ein exzentrischer Raum zur Abführung Schleifmehl ausserhalb des Siebkorbes 8 resultiert. Sieve or sieve basket 8 are surrounded by an air cap 9. There are areas with a further cross section 9 for large amounts of air and areas with a narrower cross-section for smaller amounts of air available, resulting in an eccentric space for removing grinding flour outside the screen basket 8 results.
Bezugszeichenreference numeral
Schleifrotor Schleifwerkzeug Luftaustrittsschlitz Rotorwelle Segment konisches Segment Speiseschnecke Siebkorb Lufthaube weiter Querschnitt • enger Querschnitt Grinding rotor Grinding tool Air outlet slot Rotor shaft Segment conical segment Feed screw Screen basket Air diffuser next Cross section • Narrow cross section

Claims

Patentansprüche claims
1. Schleifmaschine für Getreidekörner, insbesondere Reiskörner, wobei ein Schleifrotor mit mindestens einem Schleif- und/oder Polierwerkzeug bestückt ist und der Schleifrotor zumindest im Bereich des Schleif- und/oder Polierwerkzeuges von einem Sieb umgeben ist und zwischen dem Schleif- und/oder Polierwerkzeug und dem Sieb ein Arbeitsraum für die Bearbeitung der Getreidekörner gebildet ist, dadurch gekennzeichnet, dass das Schleifwerkzeug (2) vertikal angeordnet ist vertikal ausgebildete Luftaustrittsschlitze (3) aufweist.1. grinding machine for cereal grains, in particular rice grains, wherein a grinding rotor is equipped with at least one grinding and / or polishing tool and the grinding rotor is surrounded at least in the region of the grinding and / or polishing tool by a sieve and between the grinding and / or polishing tool and the sieve is a working space for the processing of the cereal grains is formed, characterized in that the grinding tool (2) is arranged vertically is vertically formed air outlet slots (3).
2. Schleifmaschine nach Anspruch 1 , dadurch gekennzeichnet, dass das Schleifwerkzeug (2) aus Segmenten (5, 6) zusammengesetzt ist.2. Grinding machine according to claim 1, characterized in that the grinding tool (2) of segments (5, 6) is composed.
3. Schleifmaschine nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Schleifwerkzeug (2) ein konisch ausgebildetes Segment (6) aufweist.3. Grinding machine according to claim 1 or 2, characterized in that the grinding tool (2) has a conically shaped segment (6).
4. Schleifmaschine nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass zwischen Sieb bzw. dem Siebkorb (8) und dem Schleifwerkzeug (2) ein gleichmässiger Spalt vorgesehen ist.4. Grinding machine according to one of claims 1 to 3, characterized in that between sieve and the sieve basket (8) and the grinding tool (2) is provided a uniform gap.
5. Schleifmaschine nach Anspruch 4, dadurch gekennzeichnet, dass der Spalt ca. 15 bis 25 mm beträgt. 5. Grinding machine according to claim 4, characterized in that the gap is approximately 15 to 25 mm.
PCT/CH2006/000214 2005-06-13 2006-04-19 Grinding machine for cereal grains WO2006133578A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2006800210357A CN101203313B (en) 2005-06-13 2006-04-19 Grinding machine for cereal grains

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005027343.2 2005-06-13
DE200510027343 DE102005027343A1 (en) 2005-06-13 2005-06-13 grinding machine

Publications (1)

Publication Number Publication Date
WO2006133578A1 true WO2006133578A1 (en) 2006-12-21

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PCT/CH2006/000214 WO2006133578A1 (en) 2005-06-13 2006-04-19 Grinding machine for cereal grains

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CN (1) CN101203313B (en)
DE (1) DE102005027343A1 (en)
TW (1) TW200719971A (en)
WO (1) WO2006133578A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423396A (en) * 2016-08-26 2017-02-22 北京六角体科技发展有限公司 Cereal homogenizing treatment device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6835844B2 (en) * 2015-12-04 2021-02-24 ビューラー・アクチエンゲゼルシャフトＢｕｅｈｌｅｒ ＡＧ Grinding elements for rotors, grinders, air suction casings, and grinders

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839778A1 (en) * 1988-11-25 1990-05-31 Buehler Gmbh Grinding or polishing machine for grains, such as rice, maize, wheat or the like
JPH06142533A (en) * 1992-11-13 1994-05-24 Satake Eng Co Ltd Upright rice milling machine
JPH06327989A (en) * 1993-05-21 1994-11-29 Satake Eng Co Ltd Vertical-shaft grain cleaning machine
WO2005023428A1 (en) * 2003-09-04 2005-03-17 Bühler AG Grinding or polishing machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1183318A (en) * 1996-11-27 1998-06-03 济南市历城区粮油总公司 Blowing wheat cleaning machine
CN1504263A (en) * 2002-12-02 2004-06-16 布勒公司 Abrasion polisher

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3839778A1 (en) * 1988-11-25 1990-05-31 Buehler Gmbh Grinding or polishing machine for grains, such as rice, maize, wheat or the like
JPH06142533A (en) * 1992-11-13 1994-05-24 Satake Eng Co Ltd Upright rice milling machine
JPH06327989A (en) * 1993-05-21 1994-11-29 Satake Eng Co Ltd Vertical-shaft grain cleaning machine
WO2005023428A1 (en) * 2003-09-04 2005-03-17 Bühler AG Grinding or polishing machine

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 018, no. 456 (C - 1242) 25 August 1994 (1994-08-25) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 02 31 March 1995 (1995-03-31) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106423396A (en) * 2016-08-26 2017-02-22 北京六角体科技发展有限公司 Cereal homogenizing treatment device

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DE102005027343A1 (en) 2006-12-14
CN101203313B (en) 2010-05-19
TW200719971A (en) 2007-06-01
CN101203313A (en) 2008-06-18

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