DE1811262A1 - Rotating knife mill - Google Patents

Rotating knife mill

Info

Publication number
DE1811262A1
DE1811262A1 DE19681811262 DE1811262A DE1811262A1 DE 1811262 A1 DE1811262 A1 DE 1811262A1 DE 19681811262 DE19681811262 DE 19681811262 DE 1811262 A DE1811262 A DE 1811262A DE 1811262 A1 DE1811262 A1 DE 1811262A1
Authority
DE
Germany
Prior art keywords
rotating knife
rotor
mill
knife mill
mills
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.)
Pending
Application number
DE19681811262
Other languages
German (de)
Inventor
Arbuzov Vjaceslav V
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.)
ARBUZOV VJACESLAV A
Original Assignee
ARBUZOV VJACESLAV A
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 ARBUZOV VJACESLAV A filed Critical ARBUZOV VJACESLAV A
Priority to DE19681811262 priority Critical patent/DE1811262A1/en
Publication of DE1811262A1 publication Critical patent/DE1811262A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/14Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers
    • B02C18/148Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within horizontal containers specially adapted for disintegrating plastics, e.g. cinematographic films
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/16Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
    • B02C2023/165Screen denying egress of oversize material

Landscapes

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

Description

Die Erfindung bezieht sich auf Ausrüstungen für Zerkleinerun von Materialien, und zwar auf rotierende Messermühlen für die Zerkleinerung von Termoplasten. The invention relates to equipment for grinding Materials on rotating knife mills for crushing thermoplastics.

Im Weltmaßstab sich rotierende Messermühlen zur Erzeugung des Termoplastgranulats (z.B. Mühlen der Firmen "Condux-Werk" und "Alpine") weit bekannt. Rotating knife mills on a world scale to produce thermoplastic granulate (e.g. mills from the companies "Condux-Werk" and "Alpine") are widely known.

Mit diesen Mühlen ist es aber nicht möglich, feines Mahlgut mit Hauptfraktionen unter 5 mm zu erreichen, da die während der Zerkleinerung entstehende wärme zum Schmelzen des Zerkleinerungsgutes und zur Verstopfung der Bohrungen der Elassiersiebe führt. With these mills, however, it is not possible to produce fine grist with main fractions less than 5 mm, as the heat generated during the shredding is to the Melting the material to be shredded and clogging the holes in the Elassier sieves leads.

Wie bekannt, wurden Versuche unternommen, den Stator dieser Mühlen zu kühlen. Dies tahrte jedoch nicht zu befriedigenden Ergebnissen, weil die Wärmeaustauschfläche des Stators ziemlich klein ist und sie kann nicht vergrößert werden, da auf dem Stator außer den Schneidemessern auch noch das Klassiersieb und der Materialzuführer angeordnet sind. As is known, attempts have been made to make the stator of these mills to cool. However, this did not produce satisfactory results because of the heat exchange surface of the stator is quite small and it cannot be enlarged because on the In addition to the cutting knives, the stator also includes the classifying sieve and the material feeder are arranged.

Das Ziel der Erfindung ist die Beseitigung der Mängel bekannter Mühlen, und zwar die Erzeugung der Hauptfraktion des zerkleinerten Termoplastes unter 5 mm. The aim of the invention is to eliminate the shortcomings of known mills, namely the production of the main fraction of the crushed thermoplastic under 5 mm.

Das gestellte Ziel wird dadurch erreicht, dab in der rotierenden Messermühle der Rotor nohl zur Zuführung des Kühl -mittels ausgeführt und mit einer schnecke innerhalb des iiohlraumes versehen ist0 Um die Termoplaste feiner als 1 mm zermahlen zu können, ist es zweckmäßig, eine noch intensivere Kühlung zu verwirklichen. The goal set is achieved by dab in the rotating Knife mill of the Rotor nohl designed for supplying the coolant and with a screw is provided within the cavity 0 About the thermoplastics To be able to grind finer than 1 mm, it is advisable to use an even more intensive cooling to realize.

Hierzu ist es zweckmäßig, den Statorkörper der Mühle mit einem Gehäuse zu verkleiden, das einen Kühlmantel hat. For this purpose, it is useful to have the stator body of the mill with a housing to disguise, which has a cooling jacket.

Im folgenden soll die Erfindung an Hand eines Ausführungsbeispiels und beiliegender Zeichnungen näher erläutert werden. In the following the invention is based on an exemplary embodiment and the accompanying drawings are explained in more detail.

Es zeigt Fig. 1 die rotierende Messermühle, gemäß der Erfindung (Längsschnitt); Fig. 2 dieselbe Mühle im Querschnitt.1 shows the rotating knife mill according to the invention (longitudinal section); 2 shows the same mill in cross section.

Auf de Gestell 1 (Fig. 1 und 2) ist ein Statorkörper 2 mit schneidenden Zahnflächen 3 aufgestellt die sich mit den Klassiersieben 4 abwechseln. Der Rotor 5 mit Schneidmessern 6 ist hohl ausgeführt und in seinem Inneren mit einer Schnecke 7 versehen, die starr mit dem Rotor verbunden ist und sich mit ihm dreht. Der Statorkörper 2 weist die Kühlmäntel 8 auf. Durch die Öffnung 9 (Fig. 1) in der Welle 10 des Rotors gelangt das Kühlmittel in den Hohlraum 11 (Fig. 2) des Rotors Dank der Schnecke7 strömt bei Drehung des Rotors 5 mit einer Geschwindigkeit größer als 1500 U/min das Kühlmittel intensiv durch den Rotor und wird über die bohrung 12 der elle 10 abgeführt. On the frame 1 (Fig. 1 and 2) is a stator body 2 with cutting Tooth surfaces 3 set up that alternate with the classifying sieves 4. The rotor 5 with cutting blades 6 is made hollow and in its interior with a screw 7 provided, which is rigidly connected to the rotor and rotates with him. The stator body 2 has the cooling jackets 8. Through the opening 9 (Fig. 1) in the shaft 10 of the rotor The coolant reaches the cavity 11 (Fig. 2) of the rotor thanks to the screw 7 flows when the rotor 5 rotates at a speed greater than 1500 rpm the coolant flows intensively through the rotor and is drawn through the bore 12 of the elle 10 discharged.

Als Ergebnis der intensiveren Durchströmung des Kühlmittels, sowie durch die große Wärmeaustauschfläche des Rotors, welche in Konstruktionen der Messermühle größer ist als beim Stator, wird die Wärme, welche beim Zerkleinern der Termoplaste entsteht intensiv abgeführt. Bei dieser Konstruktion der Mühle kann man beim Zerkleinern der Termoplaste eine Feinheit von 5 bis 1 mm erreichen, ohne Gefahr, daß die Teilchen schmelzen und das Klassiersieb mit den Durchmessern der Bohrungen unter 5 mm sich verstopft Um die Termoplaste bis auf eine Feinheit von 1 mm zerkleinern zu können, ist es notwendig, eine intensivere Warmeabführung aus der Zone der Zermahlung zu schaffen. As a result of the more intense flow of the coolant, as well due to the large heat exchange surface of the rotor, which is used in the construction of the knife mill is greater than with the stator, the heat that is generated when the thermoplastics are crushed arises intensely dissipated. With this construction the mill can you can achieve a fineness of 5 to 1 mm when crushing the thermoplastics without Danger that the particles melt and the classifying sieve with the diameters of the Holes under 5 mm clogged around the thermoplastics down to a fineness of To be able to shred 1 mm, it is necessary to have a more intensive heat dissipation to create the zone of grinding.

Zu diesem Zweck werden die zählen mit einem Gehäuse 13 versehen, das einen Kühlmantel 14 (Fig. 2) hat. For this purpose, the counters are provided with a housing 13, which has a cooling jacket 14 (Fig. 2).

Während des Betriebs der Mühle gelangt das Kühlmittel in dem Kühlmantel 14 durch den Stutzen 15 und wird oben durch den Stutzen 16 herausgeführt. During operation of the mill, the coolant enters the cooling jacket 14 through the connecting piece 15 and is led out through the connecting piece 16 at the top.

Claims (1)

P A T E N T A N S P R Ü C H EP A T E N T A N S P R Ü C H E 1. Rotierende Messermühle, d a d u r c h g e k e n n -z e i c h n e t , daß ihr Rotor (5) hohl für die Zuführung eines Kühlmittels ausgeführt ist und innerhalb des Hohlraums eine Schnecke (7) hat. 1. Rotating knife mill, d u r g e n g e n n a n e i c h n e t that its rotor (5) is made hollow for the supply of a coolant and has a screw (7) within the cavity. 2* Mühle nach Anspruch 1. d a d u r c h g e k e n n -z e i c h n e t , daß ihr Statorkörper (2) mit einem Gehäuse (13) verkleidet ist, das einen Kühlmantel (14) hat. 2 * mill according to claim 1. d a d u r c h g e k e n n -z e i c h n e t that its stator body (2) is covered with a housing (13), the one Has cooling jacket (14).
DE19681811262 1968-11-27 1968-11-27 Rotating knife mill Pending DE1811262A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19681811262 DE1811262A1 (en) 1968-11-27 1968-11-27 Rotating knife mill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681811262 DE1811262A1 (en) 1968-11-27 1968-11-27 Rotating knife mill

Publications (1)

Publication Number Publication Date
DE1811262A1 true DE1811262A1 (en) 1970-06-18

Family

ID=5714500

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681811262 Pending DE1811262A1 (en) 1968-11-27 1968-11-27 Rotating knife mill

Country Status (1)

Country Link
DE (1) DE1811262A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2851124A1 (en) 2013-09-20 2015-03-25 Nuga Systems AG Method and apparatus for comminution of web-shaped and/or plate-shaped materials

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2851124A1 (en) 2013-09-20 2015-03-25 Nuga Systems AG Method and apparatus for comminution of web-shaped and/or plate-shaped materials
DE102013015577A1 (en) 2013-09-20 2015-03-26 Nuga Systems Ag Method and device for comminution of web and / or plate-shaped materials

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