WO2006002555A1 - Roll sheller - Google Patents
Roll sheller Download PDFInfo
- Publication number
- WO2006002555A1 WO2006002555A1 PCT/CH2004/000747 CH2004000747W WO2006002555A1 WO 2006002555 A1 WO2006002555 A1 WO 2006002555A1 CH 2004000747 W CH2004000747 W CH 2004000747W WO 2006002555 A1 WO2006002555 A1 WO 2006002555A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roller
- feed
- air
- peeler
- feed device
- Prior art date
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
- B02B1/00—Preparing grain for milling or like processes
- B02B1/02—Dry treatment
-
- 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
- B02B7/00—Auxiliary devices
- B02B7/02—Feeding or discharging devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
Definitions
- the invention relates to a roller peeler, in particular a roller peeler for Kor ⁇ nerfr nowadays, preferably a Gummiwaizen2020ler for peeling rice and other grain crops, in particular the Roh specificschalen be separated, according to the preamble of claim 1.
- roller peeler or GummiwaizenJler are known for example from DEOS 2705334. They have a few rubber rollers with pneumatically adjustable An ⁇ pressing pressure. The paddy rice is fed from above into the nip of the horizontal, arranged in a pivotable carrier rollers. A comparable feed is disclosed in WO-A-02/064256.
- GB-PS 797372 proposes a food chute which is pivotable about a pivot point in order to compensate for the displacement of the nip and is dependent on the displacement of the roll nip (as a result of wear of the roll surface).
- the rollers are arranged at an angle and the slide approximately perpendicular to the line connecting the roller axes.
- a supply with a targeted thin and accelerated product fog over the roll width is achieved at the same time in order to achieve a high peeling performance at low com breakage.
- a similar embodiment shows the EP-A-820814, wherein a gap shift of +/- 10 mm should still be compensated.
- the grains to be peeled should be deliverable in a single-layer stratification.
- the adjusting device is correspondingly expensive.
- JP-A-2002066362 discloses a roller peeler in which cereal grains are fed in a channel to the nip. By means of an upstream centrifugal rotor or by means of pneumatics, the feed rate of the grains in the channel is increased.
- Separators are arranged downstream of the roller peelers to be able to separate the peeled brown rice cleanly from the removed tray parts.
- Known separators have three separation zones and in addition to the brown rice several mixed fractions u. a. educated.
- Scalperatoren wheat arrives on a Vorgenesisstrommel, which is covered with a coarse wire mesh.
- the wheat passes the drum and coarse impurities are sorted out and repelled.
- the wheat is subsequently aspirated to remove slight admixtures, the aspiration stream being drawn into a precipitation chamber by means of a ventilator. A return of the air for reuse is already given. Sand or dust can not be removed from the product stream.
- a similar wheat cleaning machine is described in RU-PS 2133149.
- the wheat is first separated from the round and long grain trimmings and then light products and dust are separated.
- the wheat stream then enters an additional pneumatic separation channel, where lean grains and broken grains are removed. The air is cleaned and reused.
- the product falls by gravity into the feed and aspiration region over a small drop height.
- the fall rate of the product is low.
- the invention is based on the object to avoid the disadvantages of the prior art, and to increase the power of WalzenClem at low risk of breakage and at the same time in the tray separator to allow a more efficient separation of the shells, especially peeled brown rice.
- the object is achieved with the kenn ⁇ characterizing features of claim 1.
- the invention is based on the recognition that, starting from the possible peripheral speed of the rollers (about 10-20 m / s), a multiplication of the feed speed of the bodies to be peeled would be possible in comparison with the prior art. With simple acceleration or by slide this is not possible.
- the Schwarzstoffgut is first fed via a feeder, for example in the form of a chute or a Beministerungsroh ⁇ res of the feed. Feeding speeds up to about 20 m / s (or even more if it is possible to further increase the peripheral speed of the rollers) are easily achievable.
- cooling of the rolls can be achieved with the compressed-air-fed feed supply, so that a reduction in the service life of the rolls can be avoided despite a significant increase in the throughput rate. Also, no separate Walzenkühl ⁇ device is required.
- a thinner product curtain (which can still be separated with high selectivity) can be produced in the tray separator at a higher overall output and at the same channel width.
- the pre-acceleration takes place pneumatically, but a chute arranged in front of the nip of the roller skimmer can also be "extended” and the speed of the feed veil.
- the product speed can be increased significantly and without increasing the overall height of the machine by means of pneumatic conveying and pre-acceleration of the product.
- the thickness of the feed curtain can be reduced or, with the same thickness and higher acceleration, a higher throughput can be achieved.
- the product Via centrifugal force separation, the product is deflected and fed to the feed gap, through which it passes into the separation air flow. Due to the small thickness of the veil, the product is well ventilated by the separation air stream and a precise separation into light and heavy parts is feasible.
- the cross section of the feed supply is rectangular or tubular and at the inlet point of the peeling material, the feed is provided with a venturi constriction to produce a Un tertik.
- the feeding of the material to be peeled in the pneumatic feed supply can be carried out in the pressure mode as well as in the suction mode, whereby attention must be paid to a coordination of product quantity and feed rate.
- the pneumatic feed feed can be rotatably mounted for the defined Einbrin ⁇ tion of the peeling material in the nip, whereby the displacement of the Walzen ⁇ gap is supported by wear of the rollers.
- the Zufer ⁇ tion should be bent in order to produce a deposition effect that allows a single-layer Gutzu leadership.
- the feed is tubular and preferably has a rectangular cross-section whose inner width corresponds to the roll length.
- an aspiration connection should be provided on the housing of the roller skimmer, preferably at the top in the housing, in order to avoid aspiration of trays.
- roller peeler can be more compact, especially in terms of height
- the invention will be explained in more detail in an embodiment with reference to a drawing.
- the drawing shows a roller peeler with shell separator in a simplified sectional view.
- a rubber roller peeler 1 with a pair of rubber rollers 3, 3 arranged in a housing 5 has an inlet 2 for the rice to be peeled with a vibro feed 4 arranged underneath.
- the vibro feed 4 is arranged downstream of an inlet funnel 6 with an oblique chute such that its outlet ends just above the venturi throat 8 of a conveyor tube 7.
- the product passes on the chute into the conveyor tube 7.
- the conveyor tube 7 has a rectangular cross-section and is connected at ei ⁇ nem end via a bypass 12 with the air flow 18 of a pressure fan 10 in the bowl separator 13, wherein the transition is elastic ,
- the Venturi constriction 8 allows negative pressure and an increase in the speed of the product. The product is sucked into the delivery pipe 7 by the negative pressure.
- an inlet lock with a fine chamber distribution or a corrugating roller with elastic cover strip can be used.
- the other end of the conveyor tube 7 extends to close to the nip between the rollers 3, 3 ⁇
- the rollers 3, 3 "are arranged obliquely or horizontally and the end of counsel ⁇ tube 7 is arranged to the nip that an imaginary extension about perpendicular to the connecting line between the axes of the rollers 3, 3 '
- the rollers 3, 3' are provided with the known lever control of the applicant.
- This end of the conveying tube 7 is shaped so that its inner width corresponds to the roll length. As a result, a uniform application and wear of the rollers 3, 3 'is achieved.
- the feed pipe 7 is also formed in this area as Umlenkbogen 9. As a result, a deposition effect is produced and the product is guided on the outside of the deflection arc 9 as a single-layer layer in the nip.
- the Umlenkbo ⁇ gene 9 must consist of a wear-resistant material.
- the inner height of the conveying tube 7 can be adapted so that the Lucasgeschwin ⁇ speed depending on the delivery volume of the pressure fan 10 10-20 m / s corresponds.
- the amount of air supplied simultaneously serves to cool the rollers 3, 3. For example, for an inner height of the conveyor tube of 40 mm and a width of 254 mm, approximately 4.4 m 3 min of air are required. If a stronger roller cooling is necessary, then the amount of air can be increased by increasing the height of the conveying tube 7.
- the conveying tube is mounted so pivotably or rotatably and provided with an elastic transition between pressure fan 10 and feed tube 7, that a tracking to the traveling nip given is.
- an aspiration port is provided on the housing 5 in order to avoid a back pressure at the outlet of the deflecting bend 9 of the conveying tube 7. the. In this case, at least as much air is sucked off as is supplied.
- Aspirationsan gleiches also a suction of separated trays is avoided.
- a shell separator 13 is arranged below the outlet 11 for the rice / shell mixture.
- the distributed product falls into a channel-like zone 17, where it is accelerated by means of an air flow 18 from a bypass 14 in a thin veil and enters the viewing channel 19.
- the product is flowed through by the main air stream 20 and separated into a heavy and a light fraction.
- the air flow is adjusted so that the heavy parts (brown rice) fall downwards against a discharge screw 21 and can be discharged.
- the shells (light parts) are further accelerated in the steep and narrowing sight channel 19 and fed along curved walls 22, 23 to a chamber 24, where they are discharged by means of a discharge screw 25.
- the air flow is circulated. It passes from the chamber 24 by means of a ventilation 26 (fan 10) via a bypass flap 27 back into the zone 17 or through a perforated plate 28 in the viewing channel 19th
- a partial air flow passes via the bypass 12 into the conveying pipe 7, where the unshelled paddy ice is then accelerated in an analogous manner before the nip, before the roll nip thus the aforementioned pressurized feed supply is arranged.
- the performance of the roller peeler can thus be increased in addition to a small increase in fracture and there is a cooling of the peeling rollers. With the peeling mixture, the air also returns to the shell separator, so that a closed recirculation circuit is given.
- an additional chute for the rice / husk mixture can furthermore be provided (if appropriate in conjunction with or alternatively to a vibratory mixture). Supply) in order to achieve a uniform and thin product veil, which can be flowed through by the air flow evenly in order to achieve a high selectivity.
Landscapes
- Adjustment And Processing Of Grains (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0418878-0A BRPI0418878A (en) | 2004-07-05 | 2004-12-20 | roller peeler |
JP2007518433A JP2008504948A (en) | 2004-07-05 | 2004-12-20 | Roller type shelling machine |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004032441.7 | 2004-07-05 | ||
DE200410032441 DE102004032441A1 (en) | 2004-07-05 | 2004-07-05 | roll Sheller |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006002555A1 true WO2006002555A1 (en) | 2006-01-12 |
Family
ID=34959507
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2004/000747 WO2006002555A1 (en) | 2004-07-05 | 2004-12-20 | Roll sheller |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP2008504948A (en) |
CN (1) | CN1984703A (en) |
BR (1) | BRPI0418878A (en) |
DE (1) | DE102004032441A1 (en) |
TW (1) | TW200602125A (en) |
WO (1) | WO2006002555A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2671650A1 (en) | 2012-06-05 | 2013-12-11 | Bühler AG | Method and apparatus for sorting grain |
US9629390B1 (en) * | 2013-01-26 | 2017-04-25 | Turner Innovations Ltd. | Sorrel harvesting machine with spaced apart rotating return and cutting drums moving in opposite directions at a throat therebetween |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104322218A (en) * | 2014-10-17 | 2015-02-04 | 王庆忠 | Sesame threshing machine |
CN105772142B (en) * | 2016-03-22 | 2018-06-19 | 新昌县七星街道春强机械厂 | Wheat crushed grain production equipment |
CN107262192A (en) * | 2017-07-27 | 2017-10-20 | 苏州蓝碧农产品发展有限公司 | A kind of grain processing peeling cleaning integration apparatus |
CN111545273B (en) * | 2020-05-09 | 2021-09-28 | 深圳市嘉胜创新贸易有限公司 | Convenient rubber roll rice huller |
CN115121311B (en) * | 2022-06-10 | 2024-05-10 | 江西新海集团粮油有限公司 | Integrative device of rice raw grain clearance shelling |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB811258A (en) * | 1956-10-31 | 1959-04-02 | Linde Maskinet Ab | Improvements in and relating to machines for cleaning grain or like material |
US3933626A (en) * | 1973-07-12 | 1976-01-20 | Ottawa Silica Company | Classifier for particulate material |
JPH04222641A (en) * | 1990-12-21 | 1992-08-12 | Satake Eng Co Ltd | Hulling method and apparatus and hulling apparatus in country elevator |
JP2002066362A (en) * | 2000-08-30 | 2002-03-05 | Iseki & Co Ltd | Husker |
-
2004
- 2004-07-05 DE DE200410032441 patent/DE102004032441A1/en not_active Withdrawn
- 2004-12-20 BR BRPI0418878-0A patent/BRPI0418878A/en not_active IP Right Cessation
- 2004-12-20 WO PCT/CH2004/000747 patent/WO2006002555A1/en active Application Filing
- 2004-12-20 JP JP2007518433A patent/JP2008504948A/en active Pending
- 2004-12-20 CN CNA2004800435385A patent/CN1984703A/en active Pending
-
2005
- 2005-01-25 TW TW094102072A patent/TW200602125A/en unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB811258A (en) * | 1956-10-31 | 1959-04-02 | Linde Maskinet Ab | Improvements in and relating to machines for cleaning grain or like material |
US3933626A (en) * | 1973-07-12 | 1976-01-20 | Ottawa Silica Company | Classifier for particulate material |
JPH04222641A (en) * | 1990-12-21 | 1992-08-12 | Satake Eng Co Ltd | Hulling method and apparatus and hulling apparatus in country elevator |
JP2002066362A (en) * | 2000-08-30 | 2002-03-05 | Iseki & Co Ltd | Husker |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 016, no. 572 (C - 1010) 11 December 1992 (1992-12-11) * |
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 07 3 July 2002 (2002-07-03) * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2671650A1 (en) | 2012-06-05 | 2013-12-11 | Bühler AG | Method and apparatus for sorting grain |
WO2013182552A1 (en) | 2012-06-05 | 2013-12-12 | Bühler AG | Method and apparatus for sorting grain |
US9629390B1 (en) * | 2013-01-26 | 2017-04-25 | Turner Innovations Ltd. | Sorrel harvesting machine with spaced apart rotating return and cutting drums moving in opposite directions at a throat therebetween |
Also Published As
Publication number | Publication date |
---|---|
JP2008504948A (en) | 2008-02-21 |
BRPI0418878A (en) | 2007-12-11 |
CN1984703A (en) | 2007-06-20 |
TW200602125A (en) | 2006-01-16 |
DE102004032441A1 (en) | 2006-01-26 |
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