EP1115492B1 - Vertikalrotormühle - Google Patents

Vertikalrotormühle Download PDF

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Publication number
EP1115492B1
EP1115492B1 EP98942449A EP98942449A EP1115492B1 EP 1115492 B1 EP1115492 B1 EP 1115492B1 EP 98942449 A EP98942449 A EP 98942449A EP 98942449 A EP98942449 A EP 98942449A EP 1115492 B1 EP1115492 B1 EP 1115492B1
Authority
EP
European Patent Office
Prior art keywords
vertical rotor
rotor mill
sieve
mill according
cone
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
EP98942449A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1115492A1 (de
Inventor
Guido Kraemer
Laszlo Jud
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.)
Buehler AG
Original Assignee
Buehler 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 Buehler AG filed Critical Buehler AG
Publication of EP1115492A1 publication Critical patent/EP1115492A1/de
Application granted granted Critical
Publication of EP1115492B1 publication Critical patent/EP1115492B1/de
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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting 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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens

Definitions

  • the invention relates to a vertical rotor mill, in particular a hammer or Impact grinder for grinding granular goods using impact tools that work on one rotatable, vertically arranged rotor are attached.
  • EP-A-556645 describes an impact mill with a housing in which a vertical standing rotor provided with striking tools is arranged, on which Top of the housing at least one inlet opening for the material to be ground is provided above the striking tools.
  • the striking tools are in the direction the axis of rotation arranged in groups, with each group in the same, perpendicular to the axis of rotation. At least the radially outside The ends of the striking tools of the uppermost group are less far out than those of at least one lower group.
  • the hammer mill is operated by a forced air circulation.
  • the housing of the impact mill consists of a lower, conical collecting part and an upper, cylindrical grinding housing part.
  • the grinding housing part in turn surrounds a grinding chamber, a sieve and a fine part outlet area.
  • Vibration-damping seals are provided between the two housing parts.
  • CH-A-686875 proposes form the top of the grinder housing part in the form of an upper part that on whose outer circumference at least three vibrating dampers with spring elements located therein are evenly distributed, and that continues to be a flange of the grinder housing part is flexibly connected to the upper part.
  • the connection between The height of the grinder housing part and the upper part (air gap) can be adjusted.
  • the emerging Air gap is closed by a seal.
  • One stop is selected so that the cup-shaped sieve on the rotor past the mill can be removed and the other stop is reached when the rotor is surrounded by the screen jacket and the outer edge of the screen jacket on one appropriate sealing surface is present. Access to the sieve or the change the same must be done via or through a door in the mill housing, which is not only is complex and cumbersome, but also the sanitation and hazard safety can affect.
  • the invention is therefore based on the problem of access to the sieve and To simplify the impact tools of a vertical rotor mill and the operating characteristics to improve and expand the scope of such mills. This object is achieved by means of the characterizing features of the claim. advantageous Refinements result from the subclaims.
  • the lower part of the housing of the vertical rotor mill is in the form of a lowerable Cone formed, which surrounds the sieve. When lowered, it can Sieve can be moved analogous to EP-B-525362.
  • the strainer basket itself is in one piece or made in several parts and the sieve bottom is preferably the same for all sieve perforations educated.
  • the sieves themselves have a special division and direction (in the direction of rotation overlapping) perforated, which improves the grinding.
  • the motor flange is used to improve vibration damping and reduce noise arranged on or in damping elements or a damping sleeve.
  • a vertical rotor mill 1 consists essentially of a supporting frame 2, which is connected to a base plate 3, on the top of which a motor 4 is seated, which serves as a drive for a rotor 7, which is about a substantially vertical axis of rotation rotates, and a cone 6 in which the rotor 7 is arranged.
  • the engine 4 sits in one Damping sleeve 24 or on damping elements 26.
  • On the base plate 3 is still a material feed 5 is arranged.
  • striking tools 8 are arranged radially on the outside, which essentially pivot axes parallel to the axis of rotation are pivotally attached.
  • the striking tools 8 are preferably arranged in groups in the direction of the axis of rotation, wherein the radially outer ends of the striking tools 8 of the individual groups alternate are far radially outside and continue to the striking tools 8 in one Group are arranged eccentrically.
  • the striking tools 8 of a group are thus provided with different radii in relation to the radially outer ends.
  • a sensor 29 is provided on the drive train to detect imbalances. Compared to the prior art, a larger number of striking tools is normally used 8 used (4 to 12 stations are possible).
  • rotor 7 and striking tools 8 are laterally and from a screen 9 surrounded from below.
  • It is preferably a cylindrical beaker sieve, consisting of one or more parts perforated screen jacket 10 and a perforated Sieve plate 11.
  • the perforation of the sieve plate 11 is even in different applications preferably the same, which is a noticeable simplification of spare parts inventory as well as the grinding itself.
  • a special perforation enables at least approx. 50% open screen area.
  • the screen jacket 10 preferably consists of only one as a screen basket Part. A multi-part version is also possible, especially for reduction of the transport volume.
  • the screen jacket has 10 specifically spaced bolts 31 (depending on the hole size). through another sensor, here a path potentiometer 32, a presence or Distance measurement, on the basis of which a sieve is identified and assigned, also in In relation to the regrind.
  • straight guides 13 are provided, which with at least one lifting device, preferably a pneumatic cylinder 14 connected are.
  • the connection between cone 6 and straight guide 13 is via connecting parts 16 and the connection between cone 6 and sieve 9 is made via connecting parts 15.
  • the vertical travel from cone 6 is up through sieve jacket 10 and bounded at the bottom by the cylinder 14.
  • the screen 9 and the striking tools 8 and the interior are thereby the cone 6 is freely accessible and on the other hand there is access to the sieve 9 and rotor 7 excluded in operation.
  • the interior of the cone 6 is divided into two sub-spaces by the sieve 9, one Grinding chamber 19, in which the rotor 7 is located, and a collecting chamber 20, in which the ground good collects.
  • the cone 6 and the base plate 3, as well as the grinding chamber 19 are in this embodiment Shockproof design.
  • the material to be ground is fed in via a feed device, material feed 5.
  • the material reaches the nozzle 22 and at least one inlet opening 23 in the Grinding room 19.
  • Upstream of the material feed 5 are common Heavy part separators or magnetic separators, such as those of EP-B-556645 or can be found in CH-A-686875.
  • a meterable and continuous flow of material is added by means of the feed device the inlet openings 23 guaranteed.
  • a pressure equalization opening 25 is provided in order to prevent overpressure or underpressure in the Avoid grinding chamber (collecting room 19).
  • a regulation of the pressure conditions is carried out by means of pressure sensor 33.
  • the sensors 29, 33 can be used to monitor the Operating state of the mill 1, e.g. regarding vibrations, bearing damage, racket breakage or foreign parts.
  • the nozzles 22 have a round cross section and are light when worn interchangeable.
  • the flange 27 of the motor 4 is on damping elements 26 or elastically supported in a flange-shaped damping sleeve 24.
  • the frame 2 is preferably by means of a base plate 17 on an intermediate floor 28 Mill building arranged.
  • the bottom plate 17 has an opening that is concentric is located to the outlet opening 21.
  • the opening of the base plate 17 has one inflatable telescopic seal 18 which surrounds the outlet opening 21 and which in the inflated Condition the opening seals. Before a vertical movement of the cone 6, the telescopic seal 18 is vented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Crushing And Grinding (AREA)
EP98942449A 1998-09-24 1998-09-24 Vertikalrotormühle Expired - Lifetime EP1115492B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1998/000408 WO2000018509A1 (de) 1998-09-24 1998-09-24 Vertikalrotormühle

Publications (2)

Publication Number Publication Date
EP1115492A1 EP1115492A1 (de) 2001-07-18
EP1115492B1 true EP1115492B1 (de) 2002-11-06

Family

ID=4551354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98942449A Expired - Lifetime EP1115492B1 (de) 1998-09-24 1998-09-24 Vertikalrotormühle

Country Status (16)

Country Link
US (1) US6585178B1 (zh)
EP (1) EP1115492B1 (zh)
KR (1) KR100541304B1 (zh)
CN (1) CN1098732C (zh)
AT (1) ATE227165T1 (zh)
AU (1) AU9060298A (zh)
BR (1) BR9816025A (zh)
CZ (1) CZ295602B6 (zh)
DE (1) DE59806224D1 (zh)
DK (1) DK1115492T3 (zh)
EA (1) EA002949B1 (zh)
ES (1) ES2183409T3 (zh)
HU (1) HU222862B1 (zh)
TR (1) TR200100807T2 (zh)
UA (1) UA63017C2 (zh)
WO (1) WO2000018509A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042839A1 (de) 2007-09-10 2009-03-12 Bühler AG Schlagwerkzeug für eine Schlagmühle

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005029899A1 (de) * 2005-06-25 2007-01-04 Gotic Gmbh Messerschneidmühle
RU2528456C1 (ru) * 2013-04-18 2014-09-20 Закрытое акционерное общество "Машиностроительная компания "Технэкс" Молотковая дробилка
RU2654255C1 (ru) * 2015-02-18 2018-05-17 Пмс Хандельсконтор Гмбх Измельчающее устройство
RU2601577C1 (ru) * 2015-06-23 2016-11-10 Александр Викторович Рейхардт Бисерная мельница
US20210022289A1 (en) * 2018-03-22 2021-01-28 Seed Terminator Holdings PTY LTD An impact mill and a residue processing system incorporating same
RU2742509C1 (ru) * 2019-12-03 2021-02-08 Роман Викторович Бесполденов Молотковая дробилка для зерна с вертикально установленным ротором
KR102328246B1 (ko) 2021-07-14 2021-11-18 주식회사 피티케이 실험용 원추형 밀

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169711A (en) 1963-04-16 1965-02-16 Robert D Helms Rotary grinding mill
FR2387082A1 (fr) 1977-04-14 1978-11-10 Colmant Cuvelier Dispositif de broyage
DK152338B (da) 1985-11-11 1988-02-22 Maskinfabrikken Skiold Saeby A Slaglemoelle
DE8810234U1 (zh) 1988-08-12 1988-09-22 Torfwerk Gebr. Brill Gmbh & Co. Kg, 4458 Georgsdorf, De
CH684059A5 (de) 1991-07-22 1994-07-15 Buehler Ag Schlagmühle.
ES2081646T3 (es) 1992-02-21 1996-03-16 Buehler Ag Geb Molino de percusion.
US5232168A (en) * 1992-03-30 1993-08-03 Engineered Systems, Inc. Apparatus and method for separating recyclable material from waste material
CH686875A5 (de) 1993-11-29 1996-07-31 Buehler Ag Geb Schlagmuehle.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007042839A1 (de) 2007-09-10 2009-03-12 Bühler AG Schlagwerkzeug für eine Schlagmühle

Also Published As

Publication number Publication date
HU222862B1 (hu) 2003-12-29
US6585178B1 (en) 2003-07-01
TR200100807T2 (tr) 2002-07-22
EA002949B1 (ru) 2002-12-26
ATE227165T1 (de) 2002-11-15
EP1115492A1 (de) 2001-07-18
CN1309588A (zh) 2001-08-22
WO2000018509A1 (de) 2000-04-06
DE59806224D1 (de) 2002-12-12
AU9060298A (en) 2000-04-17
UA63017C2 (en) 2004-01-15
CN1098732C (zh) 2003-01-15
CZ2001158A3 (en) 2001-05-16
ES2183409T3 (es) 2003-03-16
DK1115492T3 (da) 2003-03-03
CZ295602B6 (cs) 2005-08-17
BR9816025A (pt) 2001-10-23
KR20010106485A (ko) 2001-11-29
HUP0103278A2 (hu) 2002-01-28
HUP0103278A3 (en) 2002-04-29
KR100541304B1 (ko) 2006-01-16
EA200100386A1 (ru) 2001-08-27

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