EP2819784B1 - Broyeur réglable, notamment pour le broyage de la glace sèche - Google Patents

Broyeur réglable, notamment pour le broyage de la glace sèche Download PDF

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Publication number
EP2819784B1
EP2819784B1 EP13709810.9A EP13709810A EP2819784B1 EP 2819784 B1 EP2819784 B1 EP 2819784B1 EP 13709810 A EP13709810 A EP 13709810A EP 2819784 B1 EP2819784 B1 EP 2819784B1
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EP
European Patent Office
Prior art keywords
crushing
breaking bar
adjustable
cross
grinding
Prior art date
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Active
Application number
EP13709810.9A
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German (de)
English (en)
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EP2819784A1 (fr
Inventor
Wilfried BÖHM
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Individual
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Individual
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C4/00Crushing or disintegrating by roller mills
    • B02C4/10Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
    • B02C4/12Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate

Definitions

  • Grinders that are suitable for grinding dry ice, usually work with a grinding roller, which forms a nip together with a crushing bar or a second grinding roller, in which the supplied ground material, such as dry ice, is ground by the rotation of the grinding roller.
  • a grinding roller which forms a nip together with a crushing bar or a second grinding roller, in which the supplied ground material, such as dry ice, is ground by the rotation of the grinding roller.
  • the supplied ground material such as dry ice
  • two normally counter-rotating grinding rollers are used, between the peripheral surfaces of the required Mahlspalt is formed.
  • two likewise usually opposite grinding rollers between which a crushing bar is arranged, so that there are two grinding gaps.
  • Such a construction is generally considered to be powerful and effective.
  • the grinding gap must be suitably dimensioned.
  • Devices according to the preamble of claim 1 are made DE 895 689 C or US 331 165 A known.
  • the object of the invention is to provide a grinder which provides good grinding results over a wide range of uses, especially when grinding dry ice
  • the crushing bar is arranged between the grinding rollers, resulting in two grinding gaps. This is achieved in that the crushing bar protrudes into the space between the two grinding rollers in such a way that it intersects the connecting line between the two axes of rotation of the grinding rollers.
  • the crushing bar is slidably provided, wherein it has a cross section which is not constant transversely to the direction of displacement. The displacement is dimensioned such that the crushing bar in the usual working range of the grinder always protrudes in the manner mentioned between the two grinding rollers to form two grinding gaps, so the connecting line between the two axes of rotation of the grinding rolls.
  • the grinding gap between a grinding roller and the crushing bar can be set between a minimum and a maximum value.
  • the said construction is also excellent for grinders in which two spaced grinding rollers are provided, between which a crushing bar is arranged.
  • the storage of the grinding roller and its drive must not be made adjustable, but can be designed in a simple manner, and yet by the tangential displacement of the crushing bar with a suitable cross-sectional choice of the crushing bar a substantial variation of the two Mahlspalte each between the grinding roller and the Crushing bar can be achieved.
  • a wide variety of cross-sectional designs of the crushing bar have been proven depending on the desired millbase, which of course by varying extents in cross-section, the said variation of the grinding gaps is achieved.
  • the crushing bar has in the upper region, ie the area from which the ground material is fed, a greater extension in cross-section than in the lower region.
  • the break bar has a wedge-shaped cross-section in cross-section, at least over a partial region.
  • the surfaces of this wedge-shaped region can be flat or concave.
  • a suitable locking device is expediently provided, by means of the crushing bar can be locked in a desired position.
  • a displacement device is provided, which is connected to the crushing bar to move the crushing bar in the desired position. This device can simultaneously be designed as a locking device and, after setting the crushing bar in the desired position also ensure the locking of the crushing bar in this position.
  • the crushing bar is arranged between two counter-rotating grinding rollers, so that two grinding gaps result, wherein the material to be ground is supplied from above by means of a funnel.
  • the direction of rotation of the grinding rollers is chosen so that the material to be ground drawn into the nip and ultimately pushed therethrough.
  • the ground material drops out by gravity, and is absorbed by a metering device, for example.
  • the displaceable crushing bar has in cross section a first region which has a constant cross section. These are followed by a wedge-shaped central cross-sectional area, which merges into an end region which is formed with a constant cross-section.
  • the figure shows the preferred embodiment in cross section.
  • the actual grinder 1 dry ice is fed via a dry erector.
  • the entire device is provided and constructed such that the dry canister 1 is arranged in the uppermost region, so that the dry ice is introduced into the actual grinder by gravity, and the ground grind leaves the grinder due to gravity in order to be picked up by a portioning device 8 become.
  • the actual grinder is arranged, which has two baffles 2, which in turn form a funnel 6.
  • two counter-rotating grinding rollers 3 are arranged, of which the right in the illustration to be seen grinding roller rotates left and the opposite Grinding roller on the right.
  • a crushing bar 5 is provided, which thus forms two grinding gaps 4 in cooperation with the grinding rollers 3.
  • the material to be ground is drawn into the nip and conveyed through it, so that it falls by gravity into the portioning device 8 at the exit of the grinding gap 4.
  • the crushing bar 5 is displaceable in the direction shown by the arrow, that is, in simplified terms, can be moved up or down.
  • the direction of movement corresponds to the direction of a tangent to the grinding roller circumference applied in the nip 4.
  • the lowermost region 5a of the crushing bar has a rounded design at the end and has a constant cross section.
  • the central region 5b of the crushing bar is designed wedge-shaped in cross section with flat contact surfaces. This section is followed at the top by the end section 5c, which is not important for the grinding result, and in this embodiment has a constant cross-section, although other configurations are also readily possible.
  • This end portion 5c is connected to the displacement device 7, which allows and causes the said displacement of the crushing bar 5. If the crushing bar 5 is brought into the desired position, i. E. the nip 4 set to the desired level, there is a locking of the crushing bar 5 via a locking device, not shown.
  • the crushing bar (5) projects so far into the space between the two grinding rollers (3) that form two grinding gaps.
  • the possible displacement of the crushing bar (5) is determined so that in the normal operating range the crushing bar (5) always protrudes into the area between the two grinding rollers (3), so the crushing bar (5) the connecting line between the two axes of rotation of the grinding rollers ( 3) cuts.
  • the breaking bar (5) can easily the width the two nips (4) are each set between a grinding roller (3) and the breaking strip (5).
  • the nip 4 can be set to the desired level before the start of the grinding process by the break bar 5 is moved accordingly, so positioned. But it is also possible to change the nip 4 during a grinding operation. An opening of the nip 4, so an enlargement of the nip 4, this is easy to achieve by moving the crushing bar 5 upwards. A reduction of the nip 4 by a downward movement of the crushing bar 5 is basically possible, but in this case must be delivered very slowly to avoid blocking the grinder or excessive loads on the bearings of the grinding rollers 3 and the crushing bar 5.

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

Claims (6)

  1. Broyeur réglable, notamment pour le broyage de la glace sèche avec au moins un cylindre de broyage (3) et une barre de concassage (5), qui sont disposés de telle manière qu'ils forment une fente de broyage (4), dans lequel la barre de concassage (5) est montée de façon coulissante dans un guidage et elle peut être déplacée au moyen d'un dispositif d'actionnement, de telle manière que la fente de broyage (4) soit réglable entre une valeur minimum et une valeur maximum, dans lequel il est prévu deux cylindres de broyage espacés (3) entraînés en sens inverse entre lesquels la barre de concassage (5) est disposée de telle manière qu'il en résulte deux fentes de broyage (4), dans lequel la matière à broyer est amenée par le haut au moyen d'un entonnoir (6) et le sens de rotation des cylindres de broyage (3) est choisi de telle manière que la matière à broyer s'engage dans la fente des cylindres (4) et soit propulsée à travers celle-ci, de telle manière qu'elle tombe sur le côté inférieur de la fente des cylindres (4) hors de celle-ci et la barre de concassage déplaçable (5) destinée au réglage des fentes de broyage (4) présente une section transversale qui n'est pas constante transversalement à la direction de déplacement, caractérisé en ce que la barre de concassage (5) présente dans la région supérieure une plus grande extension en section transversale que dans la région inférieure, dans lequel la barre de concassage (5) présente dans la région inférieure une région d'extrémité (5a) ayant une section transversale constante, à laquelle se raccorde vers le haut une région (5b) ayant une section transversale essentiellement en forme de coin.
  2. Broyeur réglable selon la revendication 1, caractérisé en ce que le guidage est disposé de telle manière que le déplacement de la barre de concassage (5) se produise dans une direction qui est orientée radialement à l'axe de rotation du cylindre de broyage (3).
  3. Broyeur réglable selon la revendication 1, caractérisé en ce que le guidage est disposé de telle manière que le déplacement de la barre de concassage (5) se produise dans une direction, qui est orientée tangentiellement au cylindre de broyage (3), dans lequel la tangente est appliquée dans la fente de broyage et la barre de concassage (5) présente une section transversale, qui n'est pas constante transversalement à cette direction.
  4. Broyeur réglable selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la barre de concassage (5) est disposée entre deux cylindres de broyage espacés (3), de telle manière qu'une ligne de liaison entre les deux axes de rotation des cylindres de broyage (3) coupe la barre de concassage (5).
  5. Broyeur réglable selon la revendication 1, caractérisé en ce que le guidage permet un déplacement de la barre de concassage (5) vers le haut ou vers le bas, dans lequel la barre de concassage allongée (5) avec des faces de broyage sur les deux côtés est orientée dans la direction d'alimentation de la matière à broyer à travers la fente de broyage (4).
  6. Broyeur réglable selon l'une quelconque des revendications 1 à 5, caractérisé par un dispositif de blocage, au moyen duquel la barre de concassage (5) peut être bloquée dans une position désirée.
EP13709810.9A 2012-03-02 2013-03-01 Broyeur réglable, notamment pour le broyage de la glace sèche Active EP2819784B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210203332 DE102012203332A1 (de) 2012-03-02 2012-03-02 Verstellbares mahlwerk, insbesondere zum mahlen von trockeneis
PCT/EP2013/054138 WO2013127986A1 (fr) 2012-03-02 2013-03-01 Broyeur réglable, notamment pour le broyage de la glace sèche

Publications (2)

Publication Number Publication Date
EP2819784A1 EP2819784A1 (fr) 2015-01-07
EP2819784B1 true EP2819784B1 (fr) 2016-05-18

Family

ID=47891627

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13709810.9A Active EP2819784B1 (fr) 2012-03-02 2013-03-01 Broyeur réglable, notamment pour le broyage de la glace sèche

Country Status (3)

Country Link
EP (1) EP2819784B1 (fr)
DE (1) DE102012203332A1 (fr)
WO (1) WO2013127986A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3099414A2 (fr) 2014-01-27 2016-12-07 Feiba Engineering & Plants GmbH Mécanisme de positionnement pour broyeurs à cylindres
DE202016101964U1 (de) 2015-04-20 2016-04-28 Dca Deckert Anlagenbau Gmbh Strahlvorrichtung
CN106944188B (zh) * 2017-03-28 2019-11-15 李玉贞 一种药剂科药物粉碎制备装置
CN108499660A (zh) * 2018-03-01 2018-09-07 许洁 一种破碎程度可调的建筑施工砖块破碎装置
CN109022047B (zh) * 2018-08-28 2020-10-30 泗县微腾知识产权运营有限公司 一种煤化工气化炉炉渣回收再利用方法
CN111879038A (zh) * 2020-07-26 2020-11-03 张晓艳 一种水产品保鲜碎冰机
DE202023002024U1 (de) 2023-04-18 2024-01-04 Jürgen von der Ohe Vorrichtung zum Herstellen eines festen kryogen-mechanisch wirkenden Strahlmittels aus Wasser im Gegenstromverfahren

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US297756A (en) * 1884-04-29 John m
US331165A (en) * 1885-11-24 Thomas sheldon
FR594462A (fr) * 1925-03-03 1925-09-14 Machine à casser les noyaux
DE895689C (de) * 1951-04-03 1953-11-05 Werner Melges Muellerei-Maschine
US3510077A (en) * 1967-06-19 1970-05-05 Titanium Metals Corp Sizing shear
GB0614225D0 (en) * 2006-07-18 2006-08-23 J G Crushing & Recycling Ltd A crushing apparatus
GB2454668A (en) * 2007-11-13 2009-05-20 M G H Recycling Ltd Excavator bucket having a crusher
US8702024B2 (en) * 2008-04-16 2014-04-22 Apopka Recycling, Inc. Roller jaw crusher system and method

Also Published As

Publication number Publication date
WO2013127986A1 (fr) 2013-09-06
EP2819784A1 (fr) 2015-01-07
DE102012203332A1 (de) 2013-09-05

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