WO2009068921A1 - Broyeur cylindrique à grande vitesse - Google Patents

Broyeur cylindrique à grande vitesse Download PDF

Info

Publication number
WO2009068921A1
WO2009068921A1 PCT/HU2008/000135 HU2008000135W WO2009068921A1 WO 2009068921 A1 WO2009068921 A1 WO 2009068921A1 HU 2008000135 W HU2008000135 W HU 2008000135W WO 2009068921 A1 WO2009068921 A1 WO 2009068921A1
Authority
WO
WIPO (PCT)
Prior art keywords
rolls
grinding
roll
speed
mill
Prior art date
Application number
PCT/HU2008/000135
Other languages
English (en)
Inventor
András KERTÉSZ
Original Assignee
Kertesz Andras
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
Priority claimed from HU0700752A external-priority patent/HU0700752D0/hu
Priority claimed from HU0800366A external-priority patent/HUP0800366A2/hu
Application filed by Kertesz Andras filed Critical Kertesz Andras
Publication of WO2009068921A1 publication Critical patent/WO2009068921A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
    • B02C4/06—Crushing or disintegrating by roller mills with two or more rollers specially adapted for milling grain
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/286—Feeding devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00—Crushing or disintegrating by roller mills
    • B02C4/28—Details
    • B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
    • B02C4/38—Adjusting, applying pressure to, or controlling the distance between, milling members in grain mills

Definitions

  • the patent includes a machine serving for milling cereals for human and animal use. Its rolls rotating against each other are driven by a separate electric motor each, without the necessity of expensive geared transmission.
  • the machine is suitable for the coarse and fine milling of cereals with uniform grain composition, low power demand and at a high speed in an economic way.
  • roller mills are more and more popular on the users' side.
  • the patent is based on the recognition and experimental results that the grinding speed is not restricted to the maximum 9-10 m/s value given in the literature when milling cereals, either, but it can be increased further. Thus it is possible to drive the rolls directly with an electric motor and miss the reducer.
  • one solution for it can be that we string the small-sized and small-axle-load roll pair onto the shaft of an electric motor each and thus match them next to each other in a way ensuring adjustable milling.
  • the arrival speed can also be ensured by a two-roll accelerator, applying relatively great grinding gap.
  • This two-roll grain accelerator can also be used for breaking greater-sized grain.
  • the cumulated arrival speed of the grain is almost the same as the speed of the material flowing through the grinding gap that is the so-called grinding speed, and it is not greater than this.
  • the flat guiding hopper placed in the grinding plane serves for the baffling of the grains possibly spread.
  • the high-speed roller mill has at least two driven grinding rolls rotating against each other, adjustable grinding gap, a hopper guiding the grains to be ground and one roll is stationary fixed on the standing structure, while the other roll is fixed in a removable, adjustable way with gap adjuster and compressive mechanism;
  • an accelerative rotor equipped with more than one beating surfaces is built in one side of the guiding hopper, and its grinding rolls are highspeed rolls.
  • the high-speed roller mill has at least two driven grinding rolls rotating against each other, adjustable grinding gap, a hopper guiding the grains to be ground and one roll is stationary fixed on the standing structure, while the other roll is fixed in a removable, adjustable way with gap adjuster and compressive mechanism.
  • driven grain-accelerating-breaking rolls are built in both sides of the guiding hopper rotating against each other.
  • One accelerating-breaking roll is stationary fixed on the standing structure, while the other is fixed in a removable, adjustable way with gap adjuster and compressive mechanism.
  • the diameter of the grinding rolls is smaller than that of the grain-accelerating-breaking rolls.
  • FIG. 4 the grain accelerator in schematic section, with speed vectors
  • One roll-motor unit is stationary fixed on the standing structure 10, while the other is fixed in a removable, adjustable way with gap adjuster 13 and compressive mechanism 14.
  • an accelerative rotor 26 equipped with more than one beating surfaces 27 is built in one side of the guiding hopper 25.
  • the adjustable roll-motor unit is fixed onto the standing structure 10 by means of a slide shoe or swivel pin 12 seen in Figure 4 as well.
  • Small-diameter grinding rolls 32, 31 rotating against each other are built with grinding gap 5 in the roller mill possible according to the invention. They are equipped with the electric- driven two-roll grain accelerator shown in Figure 1 and 8.
  • the guiding hopper 34 is located above the grinding gap, in the line of the grinding plane 16.
  • Separate electric motors 6 and 7 are connected to the small-diameter grinding rolls 32, 33 without reducer, with known solutions.
  • One roll-motor unit is stationary fixed onto the standing structure 10, while the other is fixed in a removable, adjustable way with gap adjuster 13 and compressive mechanism 14.
  • one great-size accelerator-breaking roll each is installed in both sides of the guiding hopper 34, which are connected together with an accelerating-breaking gap. These also have separate electric motor 6, 7 without reducers. Other driving methods are not excluded from the solution as per the patent.
  • One accelerating-breaking roll-motor unit is stationary fixed onto the standing structure 10, while the other is fixed in a removable, adjustable way with gap adjuster 13 and compressive mechanism 14.
  • the diameters of all rolls mentioned in our description are smaller or not greater than those applied nowadays in practice, and it relates to the accelerating rolls, too.
  • the smaller diameter is meant as compared to the diameter of the accelerating roll.
  • one roll-motor unit 1 , 6 is fixed onto the stationary closed case-half 18, while the other roll-motor unit 2, 7 is fixed onto the floating, closed case-half 19.
  • These case-halves 18, 19 are connected together with the swivel pin 12 ensuring their turning. Grinding gap 5 is ensured with gap adjuster 13 and compressive mechanism 14, since these are fixed onto the case-halves 18, 19.
  • any design form as per the patent can be equipped with feeding trough 40 with vibration motor 41.
  • the vibration motor 40 is placed at the end 46 opposite to the outlet 45 in order that the cereal can be baffled and flow properly.
  • the top edges of feeding trough 43 have flexible connection elements 44.
  • grain guiding plate 29 of adjustable height and/or adjustable tilt angle is placed onto the side 28 of guiding hopper 17 opposite to the accelerative rotor 26. This guiding plate can be placed in the continuation of the outlet 45 or oppositely to it.
  • the direction of speed of the grains can be adjusted by means of the inlet plate 29.
  • the beating surface 27 of accelerative rotor 26 accelerates one row of grains by beating them; they will forward along the grinding plane 16 towards the grinding gap 5, while their speed will grow further to the grinding speed or a speed approximating it as a result of the gravitational acceleration. Then they will get into the grinding gap without heat production of friction or drawing in or with small heat production.
  • the grinding takes place between the grooved roll bodies 3, 4 of different peripheral speed. Cold grits will leave the grinding gap. If the speeds of the rolls 1 , 2 are the same, then roll bodies 3, 4 will only snap, flatten the grains, without shear stress.
  • the amount of grain size can be influenced in several ways.
  • Amount of grinding gap 5 can be regulated by means of gap adjuster 13, for example by a screw or any other adjuster.
  • gap adjuster 13 for example by a screw or any other adjuster.
  • the electric motor 7 built on it as well as the two symmetrical grinding rolls strung onto the motor shaft will move together with it.
  • set the grinding pressure by means of the spring compressive mechanism 14.
  • the compressive mechanism will allow the rolls to move off each other only in the event hard objects for example stone, iron pieces get into the gap.
  • electric motor 7 moved with 750 1/min and 1.5 kW power while electric motor 6 moved with 3000 1/min synchronous speed and 4.0 kW.
  • the motor power depends on the speed ratio of the roll pair.
  • the effective passing speed of the material is determined jointly by the peripheral speeds of the two rolls.
  • the accelerating/breaking roll pair 30, 31 will accelerate the cereal to be ground fed into the top section of the guiding hopper 16.
  • the speed reached here is not greater than the fine grinding speed between small-diameter rolls 32, 33, even with the speed increase reached in the lower part section of the guiding hopper 34 added.
  • the necessary arrival speed can be adjusted by changing the speed of the accelerating rolls 30 and 31. It can be achieved and finely regulated during operation through the regulation of the higher-speed roll 30 by means of a 50-frequnecy changer.
  • the peripheral speed of grinding rolls 1 , 2 can also be adjusted through the selection of the pole number of driving electric motors 6, 7 for the actual task as well as the formation of grooves in the surface of roll bodies 3, 4.
  • the rolls can be turned around, or changed with each other, which means the opportunity of selecting the groove matching to the task.
  • the pole numbers and synchronous speeds of the electric motors applied to various grinding tasks are as follows: 2 poles - 3000 1/min, 4 poles - 1500 1/min, 6 poles - 1000 1/min and 8 poles - 750 1/min.
  • Opportunities of groove matching are: edge-to-edge, back-to-back, edge- to-back, back-to-edge, in the way already known.
  • the patent roller mill without gears has very simple structure, minimized dimensions, is producible at low cost, has favourable power consumption and is suitable for preparing great number of kinds of grits. It preserves the advantages of the known and well-established roller mills, but exceeds its disadvantageous features.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)

Abstract

L'invention porte sur une machine utilisée pour broyer des céréales destinées à la consommation humaine ou animale. La machine précitée comprend des broyeurs entraînés qui tournent l'un contre l'autre. Un rotor d'accélération entraîné (26) muni de surfaces de battage (27) est disposé d'un côté (25) d'une trémie de guidage (17) afin d'accélérer l'alimentation en céréales de la machine. L'invention concerne également un broyeur équipé d'un accélérateur de céréales comprenant des cylindres d'accélération et de broyage (30, 31) installés de chaque côté de la trémie de guidage (17). Des cylindres de réduction (32, 33) possèdent un diamètre inférieur au diamètre des cylindres d'accélération et de broyage (30, 31). L'invention offre l'avantage: d'effectuer un broyage à haute vitesse, les cylindres étant directement entraînés dans un nombre élevé de tours par un moteur électrique; de régler précisément, en cours de fonctionnement, le coefficient d'entraînement de la paire de cylindres et, par conséquent, la taille des gritz par le biais d'un changeur de fréquence; et de fabriquer une machine simple et bon marché.
PCT/HU2008/000135 2007-11-26 2008-11-25 Broyeur cylindrique à grande vitesse WO2009068921A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
HU0700752A HU0700752D0 (en) 2007-11-26 2007-11-26 High-speed roller mill
HUP0700752 2007-11-26
HUP0800366 2008-06-03
HU0800366A HUP0800366A2 (en) 2008-06-03 2008-06-03 High-speed roller mill

Publications (1)

Publication Number Publication Date
WO2009068921A1 true WO2009068921A1 (fr) 2009-06-04

Family

ID=89988328

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/HU2008/000135 WO2009068921A1 (fr) 2007-11-26 2008-11-25 Broyeur cylindrique à grande vitesse

Country Status (1)

Country Link
WO (1) WO2009068921A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016091264A1 (fr) * 2014-12-10 2016-06-16 Flsmidth A/S Appareil pour le meulage d'un matériau particulaire
ITUB20156031A1 (it) * 2015-11-30 2017-05-30 Omas Srl Laminatoio con motori a trascinamento diretto migliorato e metodo di funzionamento del laminatoio
EP3127614B1 (fr) 2015-08-05 2018-04-18 Ing. Stefan Kastenmüller GmbH Broyeur a cylindres ayant un mode de fonctionnement couper/couper et mode de fonctionnement dos/dos
WO2019159119A1 (fr) 2018-02-15 2019-08-22 Flsmidth A/S Mécanisme et procédé d'alimentation de dispositif de broyage
EP3597299A1 (fr) 2018-07-20 2020-01-22 Bühler AG Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage
RU211162U1 (ru) * 2020-05-18 2022-05-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Красноярский государственный аграрный университет" Валковый диспергатор

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU936998A1 (ru) * 1980-12-01 1982-06-23 Воронежский сельскохозяйственный институт им.К.Д.Глинки Валкова мельница
SU1213977A3 (ru) * 1976-07-16 1986-02-23 Гебрюдер Бюлер Аг (Фирма) Устройство дл дроблени и размола зерна
FR2726490A1 (fr) * 1994-11-08 1996-05-10 Deboffles Regis Pierre Arthur Machine a laminer des grains de cereales ou analogues
RU2112598C1 (ru) * 1996-05-05 1998-06-10 Стрелков Владимир Александрович Вальцовый станок

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1213977A3 (ru) * 1976-07-16 1986-02-23 Гебрюдер Бюлер Аг (Фирма) Устройство дл дроблени и размола зерна
SU936998A1 (ru) * 1980-12-01 1982-06-23 Воронежский сельскохозяйственный институт им.К.Д.Глинки Валкова мельница
FR2726490A1 (fr) * 1994-11-08 1996-05-10 Deboffles Regis Pierre Arthur Machine a laminer des grains de cereales ou analogues
RU2112598C1 (ru) * 1996-05-05 1998-06-10 Стрелков Владимир Александрович Вальцовый станок

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
YU.A. MUIZEMNEK.: "Drobilki, konstruktsiya raschet osobennosti ekspluatatsii.", MOSKVA, MASHINOSTROENIE, 1990, pages 194 *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016091264A1 (fr) * 2014-12-10 2016-06-16 Flsmidth A/S Appareil pour le meulage d'un matériau particulaire
US10695765B2 (en) 2014-12-10 2020-06-30 Flsmidth A/S Apparatus for grinding particulate material
EP3127614B1 (fr) 2015-08-05 2018-04-18 Ing. Stefan Kastenmüller GmbH Broyeur a cylindres ayant un mode de fonctionnement couper/couper et mode de fonctionnement dos/dos
EP3127614B2 (fr) † 2015-08-05 2020-11-18 Ing. Stefan Kastenmüller GmbH Broyeur a cylindres ayant un mode de fonctionnement couper/couper et mode de fonctionnement dos/dos
ITUB20156031A1 (it) * 2015-11-30 2017-05-30 Omas Srl Laminatoio con motori a trascinamento diretto migliorato e metodo di funzionamento del laminatoio
WO2017093786A1 (fr) * 2015-11-30 2017-06-08 Omas Srl Laminoir amélioré avec moteurs à entrainement direct et procédé de fonctionnement dudit laminoir
CN108367296A (zh) * 2015-11-30 2018-08-03 奥玛仕责任有限公司 具有直接驱动马达的改进的轧机和操作所述轧机的方法
US11440016B2 (en) 2015-11-30 2022-09-13 Omas Srl Rolling mill with direct drive motors and method for operating said rolling mill
WO2019159119A1 (fr) 2018-02-15 2019-08-22 Flsmidth A/S Mécanisme et procédé d'alimentation de dispositif de broyage
EP3597299A1 (fr) 2018-07-20 2020-01-22 Bühler AG Groupe de rouleaux, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage
WO2020016060A1 (fr) 2018-07-20 2020-01-23 Bühler AG Groupe de cylindres, dispositif de broyage et procédé de réglage de la fente de broyage d'un dispositif de broyage
RU211162U1 (ru) * 2020-05-18 2022-05-23 Федеральное государственное бюджетное образовательное учреждение высшего образования "Красноярский государственный аграрный университет" Валковый диспергатор

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