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EP0727254B2 - Broyeur centrifuge à cassette échangeable - Google Patents
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EP0727254B2 - Broyeur centrifuge à cassette échangeable - Google Patents

Broyeur centrifuge à cassette échangeable Download PDF

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Publication number
EP0727254B2
EP0727254B2 EP96102155A EP96102155A EP0727254B2 EP 0727254 B2 EP0727254 B2 EP 0727254B2 EP 96102155 A EP96102155 A EP 96102155A EP 96102155 A EP96102155 A EP 96102155A EP 0727254 B2 EP0727254 B2 EP 0727254B2
Authority
EP
European Patent Office
Prior art keywords
rotor
grinding
centrifugal mill
annular
motor shaft
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
EP96102155A
Other languages
German (de)
English (en)
Other versions
EP0727254A1 (fr
EP0727254B1 (fr
Inventor
Hans-Jürgen Meyer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
F Kurt Retsch GmbH and Co KG
Original Assignee
F Kurt Retsch GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8004178&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0727254(B2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by F Kurt Retsch GmbH and Co KG filed Critical F Kurt Retsch GmbH and Co KG
Priority to DE29624206U priority Critical patent/DE29624206U1/de
Publication of EP0727254A1 publication Critical patent/EP0727254A1/fr
Application granted granted Critical
Publication of EP0727254B1 publication Critical patent/EP0727254B1/fr
Publication of EP0727254B2 publication Critical patent/EP0727254B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/062—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives with rotor elements extending axially in close radial proximity of a concentrically arranged slotted or perforated ring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C18/22—Feed or discharge means
    • B02C18/2216—Discharge means

Definitions

  • the invention relates to a centrifugal mill for laboratory use with a rotor coupled to a drive motor as a grinding tool, with a grinding chamber surrounding the rotor ring sieve and arranged on the outer circumference of the annular sieve annular collecting container for the comminuted material, wherein the rotor, ring sieve and Mahlan extract existing milling unit with a Mahlguteinlouö réelle having a housing cover is closed.
  • centrifugal mill having the aforementioned features is described in the company brochure of Retsch GmbH & Co. KG, Haan, under the name "Ultra-Centrifugal Mill Type ZM 1" (page 27).
  • a rotor is attached as a grinding tool on a so far standing arranged motor shaft in a pot-shaped housing part and fixed by means of an attached screw on the motor shaft.
  • the grinding chamber swept by the rotor is enclosed by a ring sieve, which in turn is surrounded by an annular collecting container, so that the grinding stock comminuted by the rotor revolving at high rotational speed enters the annular collecting container through the centrifugal forces via the annular sieve.
  • the milling unit formed in this respect is closed by a housing cover to be fastened to the housing.
  • the known centrifugal mill has the disadvantage that the inside of the housing cover in its the rotor or the grinding chamber cross-area is attributable to the grinding chamber, so that when opening the housing cover here adhering regrind can be lost; In this case, corresponding inaccuracies of the analysis of the ground material to be crushed can not be ruled out.
  • Another disadvantage is to be considered that the purification of the known centrifugal mill is expensive; after opening the housing cover, the ring sieve and the collecting container must be removed one after the other from the housing, and since these are each completely separate components, these parts must also be cleaned individually. In addition, it can in turn come with the appropriate handling material loss.
  • the rotor is only awkward to replace because the screw connecting it with the shaft must be solved in each case with a tool or screwed tight.
  • the invention is therefore based on the object to provide a centrifugal mill with the generic features available, which is easier to handle.
  • the invention provides in its basic idea that the annular collecting container is connected to the arranged at its inner periphery annular sieve and designed as a turntable over the rotor removable cassette and the removable cassette has a also the grinding chamber with rotor spanning and detachable from the removable cassette cover.
  • the invention has the advantage that the removable cassette can be removed from the rotor once without opening the grinding chamber, so that placed for the subsequent grinding another exchange cassette and the centrifugal mill can be put into operation.
  • the removable cassette with the comminuted material can be opened at a suitable location by lifting its cover and the contents are completely removed. This simplifies the handling and also facilitates the cleaning of the extent designed as a removable cassette unitary part.
  • the cleaning of the interchangeable container is further facilitated if, according to an embodiment of the invention, the collecting container and the annular sieve are connected to one another via a plug connection and, to that extent, are also easily separable from one another.
  • the exchangeable cassette has a bottom plate which is opposite the cover and encloses the grinding chamber, wherein the bottom plate has an opening for receiving a motor or rotor shaft;
  • the removable cassette is removed together with the rotor of the motor shaft, resulting in the advantage that the grinding chamber is completely completed. After opening the cover so far, the rotor can be removed from the cassette.
  • the sleeve-shaped shaft extension of the rotor in his Inner has a groove for receiving therein, on the motor shaft radially displaceably mounted locking elements, wherein arranged on the motor shaft locking elements as below Centrifugal force radially deflectable balls are formed;
  • the balls are biased by spring force in a cross section of the motor shaft superior locking position.
  • the centrifugal mill shown in its basic structure in FIG. 1 has a main body 10, to which a pot-shaped upper part 11 as a housing is fastened by means of screws 12.
  • a motor part 13 which projects with an upstanding motor shaft 14 on the base body 10 and extent extends into the upper part 11.
  • the housing arrangement is completed by a housing cover 15 which engages over the upper part 11 and in which a funnel 16 connected to a material inlet 17 is arranged.
  • a rotor 18 is attached via a sleeve-shaped projection 19, wherein the connection between the rotor 18 and the motor shaft 14 results in detail from Figure 2.
  • a labyrinth plate 22 with corresponding labyrinth projections is arranged between the main body 10 and the rotor 18, on which the rotor 18 runs with associated labyrinth designs 23; between the labyrinth plate 22 and labyrinth designs 23 of the rotor 18 is a labyrinth seal 24 to seal so far defined by the rotor 18 grinding chamber 25 against the motor shaft 14.
  • the rotor 18 in the interior of its sleeve-shaped projection 19 has a groove 20 in which on the motor shaft 14 radially slidably mounted and engage under spring load outwardly pressed balls 21; due to the rotating at high speed motor shaft 14 and sleeve-shaped projection 19 of the rotor 18, the balls 21 are pressed by the centrifugal force outwardly into the groove 20 of the sleeve-shaped projection 19 of the rotor 18 and thereby ensure a secure locking of the rotor; On the other hand, at standstill, the rotor 1B can be easily removed from the motor shaft 14 by the balls 21 are pressed by appropriate train in the cross section of the motor shaft 14 and thus the sleeve-shaped projection 19 can be subtracted from the motor shaft 14.
  • a removable cassette 26 can be used, which consists of an outer annular collecting container 27 and a set on its inner circumference ring screen 28, which ring sieve 28 when mounted removable cartridge 26, the rotor 18 and encloses the grinding chamber 25.
  • Collecting container 27 and ring sieve 28 are each connected to each other in such a way, preferably by a detachable for cleaning plug connection that results in a uniform handling of the removable cartridge 26.
  • the removable cassette 26 is provided with its own upper cover 29 which is sealed by a peripheral seal 30 against the outer edge of the collecting container 27 and the rest of the collecting container 27 closing and the grinding chamber 25 across the collecting container 27 can be fixed.
  • the removable cassette 26 When using the centrifugal mill, the removable cassette 26 is inserted into the upper part 11 and the housing cover 15 is closed, wherein the housing cover 15 presses on an associated design on the cover 29 of the removable cassette 26 and thereby immovably sets.
  • About the material inlet 17 and the hopper 16 to be comminuted millbase passes into the grinding chamber 25 and is here by the rotating at high speed rotor 18, which is connected via the ball lock 21 with the motor shaft 14, comminuted; the comminuted material passes through the ring screen 28 into the collecting container 27.
  • removable cartridge 26 can be removed from the upper part 11 and opened elsewhere with the necessary care, emptied and cleaned; If, in addition, the rotor 18 is to be exchanged, the rotor 18 can simply be pulled off the motor shaft 14 due to the described ball lock 21.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Grinding (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Centrifugal Separators (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)

Claims (8)

  1. Broyeur centrifuge pour le fonctionnement en laboratoire avec un rotor (18) couplé à un moteur d'entraînement, servant d'outil de broyage, avec un tamis annulaire (28) entourant l'enceinte de broyage (25) du rotor (18) et un réservoir collecteur annulaire, pouvant être inséré dans le boîtier du broyeur centrifuge, disposé sur la périphérie extérieure du tamis annulaire (28) pour le produit de broyage réduit, l'unité de broyage constituée du rotor (18), du tamis annulaire (28) et du dispositif de broyage pouvant être fermée par un couvercle de boîtier (15) présentant une ouverture d'admission (17) de produit de broyage, caractérisé en ce que le réservoir collecteur annulaire (27) est relié au tamis annulaire (28) disposé sur sa périphérie intérieure et est conçu comme un magasin interchangeable (26) pouvant être retourné autour du rotor (18), et le magasin interchangeable (26) présente un revêtement (29) recouvrant également l'enceinte de broyage (25) avec le rotor (18) et pouvant se désolidariser du magasin interchangeable (26).
  2. Broyeur centrifuge pour le fonctionnement en laboratoire avec un rotor (18) couplé à un moteur d'entraînement, servant d'outil de broyage, avec un tamis annulaire (28) entourant l'enceinte de broyage (25) du rotor (18) et un réservoir collecteur annulaire, pouvant être inséré dans le boîtier du broyeur centrifuge, disposé sur la périphérie extérieure du tamis annulaire (28) pour le produit de broyage réduit, l'unité de broyage constituée du rotor (18), du tamis annulaire (28) et du dispositif de broyage pouvant être fermée par un couvercle de boîtier (15) présentant une ouverture d'admission (17) de produit de broyage, caractérisé en ce que le réservoir collecteur annulaire (27) est relié au tamis annulaire (28) disposé sur sa périphérie intérieure et est conçu comme un magasin, interchangeable (26) avec un revêtement (29) recouvrant également l'enceinte de broyage (25) avec le rotor (18) et pouvant se désolidariser du magasin interchangeable (26), ce dernier présentant une plaque de base opposée au revêtement (29) et intégrant l'enceinte de broyage (25), avec le rotor (18) qui y est fixé, la plaque de base présentant une ouverture pour recevoir un arbre de rotor, ou un arbre de moteur, de sorte que le magasin interchangeable (26) est démontable de l'arbre du moteur avec le rotor (18).
  3. Broyeur centrifuge selon la revendication 1 ou 2, caractérisé en ce que le réservoir collecteur (27) et le tamis annulaire (28) sont reliés ensemble par un cavalier.
  4. Broyeur centrifuge selon la revendication 2 ou 3, caractérisé en ce que le magasin interchangeable (26) présente une plaque inférieure opposée au revêtement (29) et intégrant l'enceinte de broyage (25), la plaque inférieure présentant une ouverture pour recevoir un arbre de rotor, ou un arbre de moteur.
  5. Broyeur centrifuge selon la revendication 2 ou 3, caractérisé en ce que la plaque inférieure du magasin interchangeable (26) est conçue comme une plaque à labyrinthe (22) avec une garniture à labyrinthe (24) contre le rotor (18) se trouvant au-dessus de celle-ci.
  6. Broyeur centrifuge selon l'une des revendications 1 à 5, dans lequel le rotor est enfichable avec un bout d'arbre en forme de gaine sur l'arbre du moteur et peut être fixé sur celui-ci de manière à résister à la torsion, caractérisé en ce que le bout d'arbre en forme de gaine (19) du rotor (18) présente à l'intérieur un écrou (20) pour recevoir des éléments des éléments de verrouillage (21) pénétrant de l'intérieur, et disposés de manière à pouvoir être déplacés radialement sur l'arbre du moteur (14).
  7. Broyeur centrifuge selon la revendication 6, caractérisé en ce que les éléments de verrouillage disposés sur l'arbre du moteur (14) sont conçus comme des billes (21) pouvant être déviées radialement sous l'effet de la force centrifuge.
  8. Broyeur centrifuge selon la revendication 7, caractérisé en ce que les billes (21) sont prétendues par la force de ressort dans une position de verrouillage dépassant la section de l'arbre du moteur (14).
EP96102155A 1995-02-20 1996-02-14 Broyeur centrifuge à cassette échangeable Expired - Lifetime EP0727254B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29624206U DE29624206U1 (de) 1995-02-20 1996-02-14 Zentrifugalmühle mit Wechselkassette

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29502787U DE29502787U1 (de) 1995-02-20 1995-02-20 Zentrifugalmühle mit Wechselkassette
DE29502787U 1995-02-20

Publications (3)

Publication Number Publication Date
EP0727254A1 EP0727254A1 (fr) 1996-08-21
EP0727254B1 EP0727254B1 (fr) 2001-09-05
EP0727254B2 true EP0727254B2 (fr) 2006-05-03

Family

ID=8004178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96102155A Expired - Lifetime EP0727254B2 (fr) 1995-02-20 1996-02-14 Broyeur centrifuge à cassette échangeable

Country Status (4)

Country Link
US (1) US5662282A (fr)
EP (1) EP0727254B2 (fr)
JP (1) JP3697593B2 (fr)
DE (2) DE29502787U1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8002774B2 (en) 2007-11-07 2011-08-23 Stryker Corporation Bone mill including a base and a mill head separate from the base, the mill head including a moveable catch tray
WO2013186362A1 (fr) * 2012-06-14 2013-12-19 Retsch Gmbh Broyeur à couteaux dont la chambre de broyage est refroidie de manière direct ou indirecte

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2189278C1 (ru) * 2001-05-07 2002-09-20 Всероссийский научно-исследовательский институт механизации сельского хозяйства Измельчитель кормов
AU2002300428B2 (en) * 2001-08-06 2007-08-23 H-E Parts International Crushing Solutions Pty Ltd A Distributor Plate
AU2002332988A1 (en) * 2002-10-24 2004-05-13 Crushing And Mining Equipment Pty Ltd A distributor plate
AU2014227548B2 (en) * 2007-11-07 2017-06-08 Stryker Corporation Bone mill for use with a base unit
RU2386480C2 (ru) * 2008-04-21 2010-04-20 Общество с ограниченной ответственностью Научно-производственное предприятие "ВМ" Вихревой измельчитель для каскадного измельчения
CN102357387B (zh) * 2011-07-19 2013-11-20 刘国俊 涡轮反击复合式立磨机
CN102631971B (zh) * 2012-04-16 2014-04-02 宁波亿盛电机有限公司 食物垃圾处理器中的磨碎机构
DE102012010065B4 (de) 2012-05-23 2018-04-05 Fritsch Gmbh Zerkleinerungsmühle
DE102012010064A1 (de) 2012-05-23 2013-11-28 Fritsch Gmbh Zerkleinerungsmühle
DE202012013666U1 (de) 2012-05-23 2019-05-06 Fritsch Gmbh Zerkleinerungsmühle
DE202016006714U1 (de) 2016-03-24 2017-06-29 Retsch Gmbh Zerkleinerungsvorrichtung für den Laborbetrieb und Dämpfer für eine Zerkleinerungsvorrichtung
DE102016013022A1 (de) 2016-03-24 2017-09-28 Retsch Gmbh Zerkleinerungsvorrichtung für den Laborbetrieb und Dämpfer für eine Zerkleinerungsvorrichtung
CN112221607A (zh) * 2020-09-27 2021-01-15 王宏伟 一种安装有组合机构的生物医学辅助装置
CN112318941A (zh) * 2020-11-03 2021-02-05 武汉艺高包装彩印有限公司 制袋机双切刀废边分离收集装置
CN112718105A (zh) * 2020-12-02 2021-04-30 安徽索维机电设备制造有限公司 一种防堵塞的密闭磨砂机用除尘装置

Family Cites Families (10)

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Publication number Priority date Publication date Assignee Title
US2886254A (en) * 1957-09-03 1959-05-12 Rohlinger Demountable and separable pulverizer
DE1123441B (de) * 1960-03-16 1962-02-08 Gottlob Widmann & Soehne K G Elektromotorisch betriebene Siebschlaeger-Kaffeemuehle
US3180582A (en) * 1963-06-12 1965-04-27 Bath Iron Works Corp Bowl for centrifugal pulverizer
US3221997A (en) * 1963-10-28 1965-12-07 Smit Gerard Clement Electric coffee mill
DD36013B1 (de) * 1964-05-16 1968-12-05 Rotor mit ausschwingbaren Bechereinsätzen für mit höchster Drehzahl arbeitende Zentrifugen
US4699326A (en) * 1984-06-22 1987-10-13 Cedarapids, Inc. Vertical shaft impact crusher with split tub
SU1546137A2 (ru) * 1988-04-12 1990-02-28 Текелийский Свинцово-Цинковый Комбинат Им.50-Летия Октябрьской Революции Центробежна вертикальна мельница
US4844365A (en) * 1988-06-06 1989-07-04 Rossouw Pieter J Rotary impact crusher
CH688269A5 (fr) * 1992-08-21 1997-07-15 Debio Rech Pharma Sa Broyeur ultra-centrifuge et sa mise en oeuvre pour le broyage cryogénique de matériau thermosensible.
BE1007848A3 (fr) * 1993-12-14 1995-11-07 Magotteaux Int Concasseur a impact centrifuge.

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8002774B2 (en) 2007-11-07 2011-08-23 Stryker Corporation Bone mill including a base and a mill head separate from the base, the mill head including a moveable catch tray
US8343156B2 (en) 2007-11-07 2013-01-01 Stryker Corporation Mill head for a bone mill, the mill head including a catch tray
US9655631B2 (en) 2007-11-07 2017-05-23 Stryker Corporation Mill head for a bone mill, the mill head having one or more containment rings that prevent unwanted discharge of the contents of the bone mill
WO2013186362A1 (fr) * 2012-06-14 2013-12-19 Retsch Gmbh Broyeur à couteaux dont la chambre de broyage est refroidie de manière direct ou indirecte
DE202013012350U1 (de) 2012-06-14 2016-06-06 Retsch Gmbh Rotormühle mit unmittelbarer oder mittelbarer Kühlung ihres Mahlraums

Also Published As

Publication number Publication date
DE59607599D1 (de) 2001-10-11
EP0727254A1 (fr) 1996-08-21
DE29502787U1 (de) 1995-04-20
EP0727254B1 (fr) 2001-09-05
JP3697593B2 (ja) 2005-09-21
JPH08252471A (ja) 1996-10-01
US5662282A (en) 1997-09-02

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