WO2006021103A1 - Machine a polir - Google Patents

Machine a polir Download PDF

Info

Publication number
WO2006021103A1
WO2006021103A1 PCT/CH2004/000706 CH2004000706W WO2006021103A1 WO 2006021103 A1 WO2006021103 A1 WO 2006021103A1 CH 2004000706 W CH2004000706 W CH 2004000706W WO 2006021103 A1 WO2006021103 A1 WO 2006021103A1
Authority
WO
WIPO (PCT)
Prior art keywords
polishing
polishing machine
rotor
sieve
grinding
Prior art date
Application number
PCT/CH2004/000706
Other languages
German (de)
English (en)
Inventor
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 EP04797263A priority Critical patent/EP1781411A1/fr
Priority to BRPI0419010-6A priority patent/BRPI0419010A/pt
Publication of WO2006021103A1 publication Critical patent/WO2006021103A1/fr

Links

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
    • 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

Definitions

  • the invention relates to a polishing machine, in particular a polishing machine resp. a grinding machine for polishing resp. for grinding rice grains or wheat u. a ..
  • Polishing or grinding machines for rice or other grain with horizontally or vertically arranged grinding or polishing rotor are state of the art.
  • EP-A-699478 or EP-A-646414 disclose machines with vertically arranged rotor on which grinding or polishing tools are arranged. 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 have openings for viewing windows.
  • 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.
  • air slots in the hollow shaft polishing tools for example in the form of cams, can be directly assigned and additionally have active surfaces (US Pat. No. 4,829,893).
  • 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 transversely to the air flow lying ribs or the distance of the air guide housing is partly very large and the flow rate of the enforced air in such areas is small.
  • transverse webs can additionally form Leewirbel.
  • the production of hollow shafts with a multiplicity of openings is complicated and, owing to the small opening cross-sections, high pressure losses can occur, which leads to the reduction in air flow rate and / or more powerful fans.
  • the invention is based on the object to develop a polishing machine with which the described disadvantages of the prior art can be avoided.
  • Insbesonde ⁇ re 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 can be achieved.
  • Screen basket and outer shell are each made up of two curved walls. Preferably, they are designed as half shells and the screen basket preferably has outwardly to the jacket housing projecting ribs. Both halves can, preferably by screw connection and spacer elements, be connected to a supporting housing.
  • the jacket housing with strainer basket is closed at both end faces by cover plates. The distance between the sieve and the jacket is chosen so as to give the most even gap possible for a uniform air velocity.
  • the ribs can be provided with insertion lugs and the housing walls with slots, so that the ribs are easily positioned and, for example, welded from the outside, which enables a stable sieve receiving with respect to pressure and Schwin ⁇ conditions. Since the distance to the sieve is also uniform, the air speed in the processing chamber is approximately the same and grinding flour deposits are largely avoidable.
  • the rotor is designed as a solid shaft or a simple tube (hollow shaft) and the air is preferably between the rotor and the inner diameter of a feed screw for the Polished and the grinding or polishing tool, for example, guided a cam tool.
  • the air is preferably introduced before and independently of the product feed and fed into the work area. Particularly preferably, the air passes from both Stirn ⁇ pages in the work area.
  • FIG. 1 a section of the working area of a polishing or grinding machine
  • FIG. 2 a longitudinal section of the illustration according to FIG. 1
  • FIG. 3 a longitudinal section of the rotor and sieve arrangement of the polishing or grinding machine
  • FIG. 4 a cross-section of the illustration according to FIG. 3.
  • a polishing machine shown only in the parts to be considered here has a tubular rotor 1, which is equipped with conventional polishing tools 18, for example cams.
  • the rotor 1 is surrounded by an octagonal screen 2, which consists of two screen plates 3 and 4.
  • the sieve 2 in turn is surrounded by a two-part sieve basket 5 in the form of a sheet metal jacket, which consists of two half-shells.
  • Screen plates 3, 4 and screen basket 5 are connected by means of fferverbin ⁇ applications 6 and spacers to a self-supporting unit, which is closed at the end faces with Endblechen 7, 8.
  • There is a uniform, narrow gap 9 between the sieve 2 and the sieve basket so that a uniform and high air speed is achieved, which permits only slight tendency to deposit grinding meal.
  • the half-shells of the screen basket 5 have inwardly projecting ribs 10 low height, which are advantageously provided with lugs.
  • the half-shells of Siebkor ⁇ bes 5 preferably have slots, so that the ribs with the tabs po sitioned easily and can be welded, for example, from the outside. This achieves a stable reception of the screen 2, which withstands high vibration stresses and pressures, and which from an upper air inlet 11 for false air to a lower air outlet 12 with similar cross-sections a uniform distance of about 20 mm between the screen plates 3, 4 and the strainer 5 has.
  • the air velocity can be about 20 m / s.
  • the cross-sections of the air flow are to be adapted to the air volume in such a way that an optimum air speed range of approximately 20 m / s is maintained.
  • Air can be passed from both sides through channels 13, 14 in the sieve 2. From the channel 13, it passes through an annular gap 15 between the rotor 1 and a feed screw 16 for the material to be polished into the space between the rotor 1 and the wire 2, in order subsequently to flow through the gap 9 and the material to be polished. In the work area there is a negative pressure.
  • the polishing tool 18 is spaced by means of spokes 17 from the rotor 1, so that the air can flow almost unhindered.
  • the star-shaped polishing tool 18 is thereby pushed onto the rotor 1.
  • the bearings 20 of the rotor 1 are sealed by simple seals 19 and isolated from the flowing air.
  • the bearing contamination can therefore be very low, since the bearings 20 have no contact with the polish.
  • the material to be polished is introduced through a product inlet 21, conveyed by the feed screw 16 into the working area and polished there, and leaves the polishing machine through a product discharge 22.
  • two air streams are routed through the work area.
  • the cross sections are adapted to the respective amounts of air, so that in the areas with Schleifmehl ⁇ promotion optimal air velocity is given.

Landscapes

  • Adjustment And Processing Of Grains (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

L'invention concerne une machine à polir le riz ou d'autres céréales, comportant un panier perforé (5) configuré de manière simple. Ce panier perforé (5) comprend deux parois courbes se présentant sous la forme de demi-coques qui sont pourvues de rainures (10) faisant saillie vers l'intérieur. Les deux moitiés sont reliées à un tamis divisé (2), de préférence par vissage et au moyen d'éléments d'écartement, de manière à former un panier perforé (5) de support.
PCT/CH2004/000706 2004-08-25 2004-11-24 Machine a polir WO2006021103A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04797263A EP1781411A1 (fr) 2004-08-25 2004-11-24 Machine a polir
BRPI0419010-6A BRPI0419010A (pt) 2004-08-25 2004-11-24 máquina de polimento

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200410041367 DE102004041367A1 (de) 2004-08-25 2004-08-25 Pollermaschine
DE102004041367.3 2004-08-25

Publications (1)

Publication Number Publication Date
WO2006021103A1 true WO2006021103A1 (fr) 2006-03-02

Family

ID=34959215

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2004/000706 WO2006021103A1 (fr) 2004-08-25 2004-11-24 Machine a polir

Country Status (6)

Country Link
EP (1) EP1781411A1 (fr)
CN (1) CN100544824C (fr)
BR (1) BRPI0419010A (fr)
CO (1) CO5580135A1 (fr)
DE (1) DE102004041367A1 (fr)
WO (1) WO2006021103A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103920556A (zh) * 2014-04-24 2014-07-16 乐山市五通桥百泰机电厂 稻谷剥壳抛光机
CN106914299A (zh) * 2017-05-02 2017-07-04 四川省旭东机械制造有限公司 一种碾米机
CN109201150A (zh) * 2018-09-04 2019-01-15 浙江中兴粮油有限公司 一种新型高效大米抛光设备

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2632595B1 (fr) * 2010-10-27 2018-07-11 Buhler (India) Pvt. Ltd. Convoyeur reversible pour meule à grains

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164044A (en) * 1967-08-03 1969-09-10 Food Engineering International Improvements in or relating to Apparatus for the Removal of the Seed Coat from Cereal Grains
FR2507923A1 (fr) * 1981-01-23 1982-12-24 Riviana Foods Inc Procede et appareil pour eliminer le son du riz et de cereales analogues
EP0521452A1 (fr) * 1991-07-03 1993-01-07 F.H. Schule Mühlenbau GmbH Procédé et appareillage pour meuler des graines
WO2002100546A1 (fr) * 2001-06-11 2002-12-19 Seirei Kogyo Kabushikigaisha Machine de concassage de riz de type broyage horizontal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1164044A (en) * 1967-08-03 1969-09-10 Food Engineering International Improvements in or relating to Apparatus for the Removal of the Seed Coat from Cereal Grains
FR2507923A1 (fr) * 1981-01-23 1982-12-24 Riviana Foods Inc Procede et appareil pour eliminer le son du riz et de cereales analogues
EP0521452A1 (fr) * 1991-07-03 1993-01-07 F.H. Schule Mühlenbau GmbH Procédé et appareillage pour meuler des graines
WO2002100546A1 (fr) * 2001-06-11 2002-12-19 Seirei Kogyo Kabushikigaisha Machine de concassage de riz de type broyage horizontal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103920556A (zh) * 2014-04-24 2014-07-16 乐山市五通桥百泰机电厂 稻谷剥壳抛光机
CN106914299A (zh) * 2017-05-02 2017-07-04 四川省旭东机械制造有限公司 一种碾米机
CN109201150A (zh) * 2018-09-04 2019-01-15 浙江中兴粮油有限公司 一种新型高效大米抛光设备

Also Published As

Publication number Publication date
CO5580135A1 (es) 2005-11-30
CN100544824C (zh) 2009-09-30
BRPI0419010A (pt) 2007-12-11
CN101005898A (zh) 2007-07-25
DE102004041367A1 (de) 2006-03-02
EP1781411A1 (fr) 2007-05-09

Similar Documents

Publication Publication Date Title
DE102015006497B4 (de) Zyklonabscheider sowie Filtervorrichtung mit Zyklonabscheider
DE4432200C1 (de) Rührwerksmühle
NZ182084A (en) Rotating drum screen
DE3508889C1 (de) Windsichter mit verschleissfreiem Sichtrad
EP3311922B1 (fr) Broyeur à billes à agitateur
EP3482078B1 (fr) Pompe à vide à tiroir rotatif lubrifiée à l'huile
EP0541759A1 (fr) Dispositif a lit fluidise pour le traitement de matiere particulaire.
DE10338770B4 (de) Zentrifugalabscheider und Verfahren zur Reinigung eines Fluidstromes
WO2006021103A1 (fr) Machine a polir
EP3383540B1 (fr) Rotor, affuteuse, gaine d'aspiration d'air et element abrasif pour une affuteuse
EP1645320A1 (fr) Separateur centrifuge
EP1027161B1 (fr) Procede et dispositif pour le broyage a l'etat mouille de solides dans des liquides
EP0640398A2 (fr) Centrifugeuse
EP3368196B1 (fr) Ensemble filtre tournant doté de plusieurs arbres creux
WO2007006160A1 (fr) Polisseuse
DE102006029286A1 (de) Poliermaschine
DE10110652B4 (de) Rührwerksmühle mit torusförmigem Mahlspalt
WO2017071974A1 (fr) Ensemble filtre rotatif doté de plusieurs arbres creux
DE102006025494A1 (de) Vorrichtung zum Zu- bzw. Abführen von einem oder mehreren Medien zu einem rotierenden Maschinenbauteil
DE2400496A1 (de) Umfangsgeblaese
DE102005061743A1 (de) Poliermaschine
DE19511314C2 (de) Zentrifugalkraftsichter
EP2176001B1 (fr) Broyeur agitateur
DE102005027343A1 (de) Schleifmaschine
EP0829303A1 (fr) Broyeur à anneau et rouleau pour le broyage par pression de matériau granulé

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

DPEN Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed from 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004797263

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 735/DELNP/2007

Country of ref document: IN

WWE Wipo information: entry into national phase

Ref document number: 200480043832.6

Country of ref document: CN

WWE Wipo information: entry into national phase

Ref document number: 1200700398

Country of ref document: VN

WWP Wipo information: published in national office

Ref document number: 2004797263

Country of ref document: EP

ENP Entry into the national phase

Ref document number: PI0419010

Country of ref document: BR