EP0057426B1 - Dispositif pour la séparation de corps broyeurs et de la suspension broyée dans une machine à broyage humide - Google Patents

Dispositif pour la séparation de corps broyeurs et de la suspension broyée dans une machine à broyage humide Download PDF

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Publication number
EP0057426B1
EP0057426B1 EP82100572A EP82100572A EP0057426B1 EP 0057426 B1 EP0057426 B1 EP 0057426B1 EP 82100572 A EP82100572 A EP 82100572A EP 82100572 A EP82100572 A EP 82100572A EP 0057426 B1 EP0057426 B1 EP 0057426B1
Authority
EP
European Patent Office
Prior art keywords
sieve
grinding
wet
separation
ground suspension
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
Application number
EP82100572A
Other languages
German (de)
English (en)
Other versions
EP0057426A2 (fr
EP0057426A3 (en
Inventor
Ludwig Dr. Kreitner
Juergen Klapper
Horst Schober
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of EP0057426A2 publication Critical patent/EP0057426A2/fr
Publication of EP0057426A3 publication Critical patent/EP0057426A3/de
Application granted granted Critical
Publication of EP0057426B1 publication Critical patent/EP0057426B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/16—Mills in which a fixed container houses stirring means tumbling the charge
    • B02C17/161—Arrangements for separating milling media and ground material

Definitions

  • the invention relates to a separating device for separating grinding media and ground suspension in a wet grinding machine, with a sieve arranged at the grist outlet of the wet grinding machine, the passage openings of which are designed with dimensions that block the passage of grinding media and the outlet surface of the sieve opposite one in the direction of the sieve movable plate is arranged and the plate on the side facing the screen is provided with elements for piercing the openings of the screen (DE-A-2922 122).
  • a separating device in which fixed separating elements and movable separating elements are designed as straight strips or bars that are parallel to one another.
  • the fixed dividers form a grate with parallel bars.
  • the movable dividing members are periodically arranged to be movable back and forth in the direction of the grinding chamber. In practice, however, this separating device could not suffice.
  • the invention is therefore based on the object of providing a separating device in which clogged sieves can be cleaned quickly and correctly during the ongoing operation of the wet comminution machine.
  • This object is achieved according to the invention in that the elements can be moved through the sieve from time to time as required.
  • the drawing shows a section through the grinding chamber and through the slotted screen of an agitator mill, as well as through the plate arranged opposite the slotted screen with the narrow, solid sheet metal strips incorporated therein.
  • ground suspension and grinding media 2 in the interior of a grinding chamber 1 of an agitator mill.
  • the ground suspension leaves the grinding chamber via the grinding material outlet opening 3.
  • a flat sieve 4 designed as a slotted sieve is arranged at the grinding material outlet, the gap widths of which are approximately Va the grinding media diameter.
  • the grinding media 2 and the suspension leaving the grinding chamber 1 are separated and at the same time the grinding media 2 are retained.
  • Small particles that are about the same size as the gap widths of the flat screen and consist of abraded and broken grinding media and product particles can get stuck in the flat screen and thereby reduce the free screen area. This often has the consequence that the flat screen is clogged after only a few hours.
  • a plate 5 which is movable in the direction of the flat screen is arranged opposite the exit surface thereof. Narrow, fixed sheet metal strips 6 are embedded in this plate, which are aligned with the openings 7 of the flat screen 4. In the event of any blockage, the metal strips are pushed through the openings 7 of the flat screen. As a result, the sieve-clogging particles are returned to the grinding chamber and the free sieve area is enlarged.
  • the plate 5 is moved by means of a linkage 8.
  • a seal 9 prevents suspensions from flowing outwards via the rod outlet opening. If the flat screen is clogged again, the process described above can be repeated periodically as required.
  • the movable plate is made of metal and the sheet metal strips are connected to the plate by welding.
  • the thickness of the metal strips is slightly less than the openings of the flat screen.
  • the dimension "b" of the sheet metal strips is greater than the thickness "k" of the flat screen.
  • the sieve can be designed as a perforated plate and the metal strips in the movable plate as mandrels.
  • the advantages achieved with the invention consist in particular in that the cleaning of the slotted screen can be carried out quickly and correctly from the outside during operation. This eliminates the need for time-consuming cleaning work on the slotted screen and the service life of the wet shredder is significantly increased.

Landscapes

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

Claims (1)

  1. Dispositif séparateur pour séparer des corps broyeurs d'une suspension broyée dans une machine de broyage par voie humide, comportant, disposé à la sortie de la matière broyée (3) de la machine de broyage, un tamis (4), dont les ouvertures de passage (7) ont des dimensions interdisant le passage des corps broyeurs et une plaque (5), déplaçable en direction du tamis, est disposée face à la surface de sortie du tamis, et la plaque est munie, sur la face tournée vers le tamis, d'éléments (6) destinés à traverser les ouvertures du tamis, caractérisé par le fait que les éléments sont, de temps en temps, selon les besoins, déplaçables à travers le tamis.
EP82100572A 1981-02-04 1982-01-28 Dispositif pour la séparation de corps broyeurs et de la suspension broyée dans une machine à broyage humide Expired EP0057426B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3103662A DE3103662C2 (de) 1981-02-04 1981-02-04 Trennvorrichtung zum Trennen von Mahlkörpern und gemahlener Suspension in einer Naßzerkleinerungsmaschine
DE3103662 1981-02-04

Publications (3)

Publication Number Publication Date
EP0057426A2 EP0057426A2 (fr) 1982-08-11
EP0057426A3 EP0057426A3 (en) 1984-05-16
EP0057426B1 true EP0057426B1 (fr) 1986-06-04

Family

ID=6123969

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82100572A Expired EP0057426B1 (fr) 1981-02-04 1982-01-28 Dispositif pour la séparation de corps broyeurs et de la suspension broyée dans une machine à broyage humide

Country Status (4)

Country Link
US (1) US4421642A (fr)
EP (1) EP0057426B1 (fr)
CA (1) CA1175789A (fr)
DE (2) DE3103662C2 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4637557A (en) * 1985-07-15 1987-01-20 Vitunac Edward A Device for cleaning the sizing screen of a material reduction apparatus
US4702826A (en) * 1986-02-03 1987-10-27 Rotex, Inc. Screen cleaner for particle size analyzer
DE4122680C2 (de) * 1991-07-09 1994-03-31 Draiswerke Gmbh Rührwerksmühle
US5893973A (en) * 1997-08-25 1999-04-13 Antoun; Gregory S. High efficiency backflush system for a filter
CN104190499B (zh) * 2014-08-20 2017-05-03 山东巴顿化肥有限公司 一种用于处理化肥原料结块的破碎装置
BE1024079B1 (fr) * 2015-09-07 2017-11-13 Pharma Technology S.A. Dispositif de separation de cassons de particules desdites particules
CN114985091B (zh) * 2022-04-22 2023-07-14 安池(山东)动物营养研究院有限公司 一种饲料原材料粉碎筛选装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US65504A (en) * 1867-06-04 Improved ice-ckujheh
DE78027C (de) * L. RÖSSLER u. H. REINHARD, München Reinigungsvorrichtung für Wechselsiebe
US1279335A (en) * 1918-01-19 1918-09-17 Harry W Hardinge Conical mill.
GB1154196A (en) * 1966-07-27 1969-06-04 Albert Wehner Screening Machines
US3567032A (en) * 1968-06-14 1971-03-02 Monogram Ind Inc Filter and pump for a recirculating sanitary system
CH565579A5 (fr) * 1973-03-22 1975-08-29 Ziolkowski Roman
CH564373A5 (fr) * 1973-09-28 1975-07-31 Bicik Vladislav
DE2922122A1 (de) * 1979-05-31 1980-12-04 Netzsch Maschinenfabrik Separator fuer ruehrwerksmuehlen

Also Published As

Publication number Publication date
CA1175789A (fr) 1984-10-09
DE3103662A1 (de) 1982-08-12
EP0057426A2 (fr) 1982-08-11
EP0057426A3 (en) 1984-05-16
DE3103662C2 (de) 1983-03-31
DE3271489D1 (en) 1986-07-10
US4421642A (en) 1983-12-20

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