DE597314C - Device for air sifting of regrind - Google Patents

Device for air sifting of regrind

Info

Publication number
DE597314C
DE597314C DES104530D DES0104530D DE597314C DE 597314 C DE597314 C DE 597314C DE S104530 D DES104530 D DE S104530D DE S0104530 D DES0104530 D DE S0104530D DE 597314 C DE597314 C DE 597314C
Authority
DE
Germany
Prior art keywords
regrind
air
air sifting
pipeline
sifting
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
DES104530D
Other languages
German (de)
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.)
Venator Germany GmbH
Original Assignee
Sachtleben AG fuer Bergbau und Chemische Industrie
Publication date
Priority to DES104530D priority Critical patent/DE597314C/en
Application granted granted Critical
Publication of DE597314C publication Critical patent/DE597314C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/12Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving reciprocating masses
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B04CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04CAPPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08Vortex chamber constructions
    • B04C5/087Vortex chamber constructions with flexible gas-tight walls
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B11/00Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/08Cleaning arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)

Description

Vorrichtung zum Windsichten von Mahlgut Bei den meisten Mahleinrichtungen mit Windsichtung wird das zu sichtende Material in bekannter Weise durch den Luftstrom hochgehoben und durch den inneren Kegelmantel des Vorsichters in drehender Bewegung hindurchgeführt. Hierbei werden die mitgerissenen gröberen Teile zentrifugal abgeschleudert und gelangen durch die abwärts führende Spitze des Innenkegels zur Mahlung zurück oder werden ganz ausgeschieden, während die feinen, in dem 'Luftstrom schwebend gebliebenen Teilchen durch eine zentral gelegene Rohrleitung in die endgültige Abscheidung gelangen.Device for air sifting of grist Most grinders With air sifting, the material to be sifted is passed through the air stream in a known manner lifted up and rotating through the inner cone of the caution passed through. The coarser parts that are dragged along are thrown off centrifugally and get back to the grinding through the downward leading tip of the inner cone or are entirely excreted, while the fine ones, suspended in the 'stream of air remaining particles through a centrally located pipeline to the final deposition reach.

Alle diese bekannten Zyklonsichter haben den großen Nachteil, daß fast sämtliche Mineral-, Metall- und Erdfarben und auch sonstige feingepulverte Materialien, die in feinem Zustande sehr stark zum Anbacken und Kleben neigen, an den Wänden der Zyklone anhaften und allmählich eine Verstopfung der Apparatur herbeiführen. Alle Hilfsmittel, wie rotierende Schaber, Klopfer u. dgl., haben sich bis jetzt wenig bewährt. Beispielsweise ist es bisher noch nicht gelungen, Lithopone, Kreide, Ultramarin und ähnliche Stoffe einwandfrei zu sichten und damit allerhöchste Feinheit zu erreichen.All these known cyclone separators have the major disadvantage that almost all mineral, metal and earth colors and also other finely powdered ones Materials that have a strong tendency to stick and stick in their fine condition stick to the walls of the cyclones and gradually clog the equipment. All aids, such as rotating scrapers, knockers and the like, have been used up to now little proven. For example, it has not yet been possible to use lithopone, chalk, To sift through ultramarine and similar substances perfectly and with it the highest fineness to reach.

Diese Übelstände beseitigt die vorliegende Erfindung, nach welcher die Wandungen des Sichters nicht wie gewöhnlich aus starrem Stoff, wie Holz, Blech o. dgl., ausgeführt sind, sondern aus - faltbarem Stoff, wie Gummi, Tuch oder ähnlichem, der dauernd in Schwingungen versetzt wird. Bei der auf der beiliegenden Zeichnung als Schema gezeigten Einrichtung ist angenommen, daß das Sichtgut durch die Schnecke i der Anlage zugeführt wird. Von der Schnecke i fällt das Gut in den @ Unterteil 2 des Vorsichters, wird hier verteilt und durch einen im Ventilator 3 erzeugten Luftstrom im Innern des Außenmantels q. hochgehoben und gelangt in den Innenkegel 5. Hier werden die groben Teile abgeschieden, rieseln an der Wandung des Mantels 6 herunter und gelangen durch eine Förderorganeinrichtung 7 zur Mahlung zurück bzw. zur Ausscheidung, während die feinen Teilchen mit der Luft durch die Rohrleitung 8 zu dem Abscheidezyklon 9 geführt werden.These drawbacks are eliminated by the present invention, according to which the walls of the sifter are not made of rigid material, such as wood or sheet metal, as is usually the case or the like, but made of - foldable material, such as rubber, cloth or the like, which is constantly set in vibration. With the one on the accompanying drawing The device shown as a scheme is assumed that the material to be classified through the screw i is fed to the system. The product falls from the screw i into the lower part 2 of the caution, is distributed here and generated by one in the fan 3 Air flow inside the outer jacket q. lifted up and gets into the inner cone 5. This is where the coarse parts are deposited and trickle down the wall of the jacket 6 and get back through a conveyor device 7 for grinding or for excretion, while the fine particles with the air through the pipeline 8 are fed to the cyclone separator 9.

Die Kegelwandungen ¢ und 6 sind aus einem leicht in Schwingungen zu versetzenden Stoff, wie Gummi, Tuch oder ähnlichem, hergestellt. Gleichzeitig ist der ganze Sichter auf Vorrichtungen io federnd befestigt und wird in bekannter Art durch Vorrichtungen i i in rasche Schwingungen versetzt. Diese mit hoher Schwingungszahl erzeugten Vibrationen übertragen sich auf die Wandungen q. und 6 und damit auch auf das Sichtgut, welches hierdurch in dauernder Bewegung gehal&en wird und so keine Gelegenheit zum Anhaften und Festsetzen findet. Die ableitende Rohrleitung 8 ist mit einem beweglichen Zwischenstück 12 ausgerüstet, um die erzeugten Schwingungen des Sichters zu ermöglichen. Das Sichtgut gelangt nun von dem Ventilator 3 durch Rohrleitung 13, die ebenfalls mit einem beweglichen Teil i¢ versehen ist, zum Abscheidezyklon 9, der in gleicher Weise wie der Vorsichter ausgerüstet ist. Auch hier ist der Kegelmantel 15 aus einem elastischen Stoff hergestellt, der Zyklon ebenfalls auf Federn 16 gelagert und mit einer Vibrationsvorrichtung 17 ausgerüstet. Hierdurch wird ein Kleben des Gutes vermieden und gleichzeitig das abgeschiedene Material zum Auslauf 18 in die Kegelspitze befördert. Die vom Abscheidezyklon 9 zum Vorsichter zurückführende Rohrleitung ist gleichfalls durch ein elastisches Stück 2o mit dem Abscheidezyklon verbunden.The cone walls ¢ and 6 are made to vibrate slightly offsetting material, such as rubber, cloth or the like. At the same time is the whole sifter on devices io resiliently attached and is in a known way set in rapid vibrations by devices i i. These with a high number of vibrations generated vibrations are transmitted to the walls q. and 6 and thus also on the items to be viewed, which are kept in constant motion as a result and so there is no opportunity to cling and fix. The downward pipeline 8 is equipped with a movable intermediate piece 12 to the vibrations generated to enable the sifter. The material to be separated now passes through the fan 3 Pipeline 13, which is also provided with a movable part i ¢, to the separating cyclone 9, which is equipped in the same way as the caution. Here, too, is the cone shell 15 made of an elastic material, the cyclone also mounted on springs 16 and equipped with a vibrating device 17. This prevents the Good avoided and at the same time the deposited material to the outlet 18 in the Cone tip promoted. The pipeline leading back from the cyclone separator 9 to the caution is also connected to the cyclone separator by an elastic piece 2o.

Claims (1)

PATENTANSPRUCH: Vorrichtung zum Windsichten von Mahlgut jeder Art, dadurch gekennzeichnet, daß die Mantelflächen der Sichter aus einem faltbaren Stoff hergestellt sind und dauernd in Schwingungen versetzt werden.PATENT CLAIM: Device for air classification of all types of regrind, characterized in that the jacket surfaces of the sifter are made of a foldable fabric are manufactured and are continuously set in vibration.
DES104530D Device for air sifting of regrind Expired DE597314C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES104530D DE597314C (en) Device for air sifting of regrind

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES104530D DE597314C (en) Device for air sifting of regrind

Publications (1)

Publication Number Publication Date
DE597314C true DE597314C (en) 1934-05-22

Family

ID=7525920

Family Applications (1)

Application Number Title Priority Date Filing Date
DES104530D Expired DE597314C (en) Device for air sifting of regrind

Country Status (1)

Country Link
DE (1) DE597314C (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961926C (en) * 1941-01-11 1957-04-11 Siemens Ag Device for handling any goods by vibrating or shaking movements of a vibrating container
DE973682C (en) * 1951-05-11 1960-04-28 Metallgesellschaft Ag Centrifugal dust separator with vibration exciter
DE1181168B (en) * 1955-06-09 1964-11-12 Projecting Aktiebolag Procedure for clearing clogging of the underflow outlet of hydrocyclones
DE1254946B (en) * 1956-10-19 1967-11-23 Bayer Ag Cyclone for separating fine dust that can be agglomerated
DE1507464B1 (en) * 1966-04-06 1970-09-17 Alpine Ag Soft elastic lining for the inner walls of process engineering equipment
DE19858966A1 (en) * 1998-12-21 2000-07-06 Bayer Ag Self-cleaning separator for cohesive or adhesive products
US6308735B1 (en) 1997-11-25 2001-10-30 Stant Manufacturing Inc. Weldable fuel tank valve apparatus
EP4268967A1 (en) * 2022-04-29 2023-11-01 ESTA Apparatebau GmbH & Co. KG Cyclone separator for separating solids from a process stream

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE961926C (en) * 1941-01-11 1957-04-11 Siemens Ag Device for handling any goods by vibrating or shaking movements of a vibrating container
DE973682C (en) * 1951-05-11 1960-04-28 Metallgesellschaft Ag Centrifugal dust separator with vibration exciter
DE1181168B (en) * 1955-06-09 1964-11-12 Projecting Aktiebolag Procedure for clearing clogging of the underflow outlet of hydrocyclones
DE1254946B (en) * 1956-10-19 1967-11-23 Bayer Ag Cyclone for separating fine dust that can be agglomerated
DE1507464B1 (en) * 1966-04-06 1970-09-17 Alpine Ag Soft elastic lining for the inner walls of process engineering equipment
US6308735B1 (en) 1997-11-25 2001-10-30 Stant Manufacturing Inc. Weldable fuel tank valve apparatus
DE19858966A1 (en) * 1998-12-21 2000-07-06 Bayer Ag Self-cleaning separator for cohesive or adhesive products
EP4268967A1 (en) * 2022-04-29 2023-11-01 ESTA Apparatebau GmbH & Co. KG Cyclone separator for separating solids from a process stream

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