DE8101960U1 - GRANULATION MILL, ESPECIALLY FOR PLASTIC - Google Patents

Description

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PATENT LAWYERS

DR, ING, E, HOFFMANN <l? 3O-197i) - DlPL ₁ -ING, W. EITLE. DR ₁ RER, N AT, K. HOFFMANN - D | pL, - | NG, W, LEHN

ΟΙΡΙ, -ING, K, FDCHSLE, DR, RER, NAT. B, HANSEN ARABELLA STREET 4. D-800Q M D NCHEN BI, TELEPHONE (08?) 9110B7. TELEX 05-2? «]? (PATH E)

34415 p / hl

Previero N. di Flavo Previero & C. s.a.s. Erba (CO) Italy

Granulation mill / especially for plastic

The present invention relates to a granulation mill, those in particular for plastic materials can be used, i.e. a machine that is able to granulate pieces of material of any type and shape convert small size.

As is known, granulation mills comprise a rotor with a horizontal axis, which is rotatable within a stationary cavity, which cavity communicates at the top with a feed hopper and is closed at the bottom by a curved selection grid ¹ . The rotor is provided with radial vanes which, as the rotor rotates, cooperate with stationary stator counter vane to gradually cut the material and crumble it so much that the size of the granules produced pass through the openings in the separating grid and then into those under the grids arranged • can be brought into / grounded.

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Some of the violins of the well-known ÄifänUiä-bioiiämühleti
Problems / When large-scale material becomes boring with them
very light material should be treated »in the eifsteferi
Pal! it is necessary Mtsäöhlidh / a mill with one
Statoifhohlraum / a Rötöir und Selektiörisgittern sizes
Oversize available. Not only would this be
Perceived as unsuitable in terms of weight and size,
but also as a disadvantage in terms of yield * Tests have actually shown / that in comparison with the
When using energy, the grinding capacity of the mill is reversed returns with regard to the diameter of the rotor and the se ^ ' \ lektierüngsgitter changed. When using sehlr | light material enters the other hand, a phenomenon of the comparison i refusal of the material on / meaning / that the rotor
is inclined, the material partially to the hopper
throw back.

Therefore, the invention is based on the object of realizing a Granulat ion smüh Ie, in particular for $ plastic that is fairly light and fairly light. small size is capable of, both the f. processing of a generously sized material and very lightweight! ■ dimensioned material to work effectively with regard to the next
Processing of material with more common weights and sizes.

This object is achieved in that the
Granulation mill has at least two rotors arranged side by side with parallel axes and rotatable .in

a single stator cavity of a housing below «. <

an EinfÜiltrichters are arranged / which Eihfülltrich- f

ter has a width corresponding to that of the stator cavity, t

whereby each rotor has a selection parameter with in the we- |

essentially have the same radius of curvature as that of the rotor

is ordered. |

The use of two rotors with respective selection | grids allowed within a single stator cavity |

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openly to allow the operator to have the necessary size / To material larger "dimension z" process / wMhifeftd equal " On the side the mill of little Öetyiöht And geifincfeir Öifuss öein can «Nööh is more significant / that the if DUifähnieäser der Rotors and the respective grids within such limits can be kept / that the Mäsöhine with a recorded Mahi capacity works.- On the other hand, it is very easy / No more material introduced into the stator cavity thrown back / but is between einiti rotor and the absorbed by others and sufficiently ground * As for materials of so-called * usual weight and size / so the Gränulatiönsmühie according to the invention can claim the advantage / that the two sides Rotors arranged on the side have a wide rotor circumference / which is intended to accommodate these materials.

Further details / features and advantages of the invention emerge from the following description of the FIGS Drawings purely schematically illustrated embodiments. It shows:

Fig. 1 is a sectional view of a granulation mill in a plane perpendicular to the rotorsaxes; and

FIG. 2 the same granulation mill in section along the line II-II in FIG. 1.

In the drawings is a Giianulationsmühle for plastics shown, which within a stationary housing 1 comprises a further stator cavity 2, above which a supply funnel 3 is mounted from the same width. The stator cavity 2 is down through two selection grids 4 of curved shape completed. Each grid connects the respective side of the stator cavity to a lower partition 5.

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Immediately "above the" two Öittefir 4 / dUh * in corresponding 2öneri of the StätöirhöhlräUmes / which are separated by the double height walls 5 are rotatable in the Stätör'höhlräUm 2 two rotors G with a small Düifähme§sef ängeöifdnefei Jiidaif includes one of the rotors Central channel 7 for water cooling and carries a multitude of radial wings 8> which are in Uer Läge / to work with the stationary opposing wings 9 and 10 / which are supported by the side walls of the ßätorhohltaümes 2 or the central partition 5 (Fig, I) ₄

As shown in FIG. ₄ , each rotor 6 is supported at its ends by the stationary housing 1. The rotor is provided with a respective drive pulley 11 which controls its rotation in the direction indicated by the arrow in FIG. To put it more precisely, Aies means that the left and right rotors rotate clockwise or counterclockwise, so that the material fed through the hopper 3 (large, small, -, light / heavy) onto the space occupied by the partition 5 and then to convey in the direction of the selection grid 4.

If the material was crumbled into granules "and by the combined action of the blades 8 and the counter-blades 9 and 10, the aforementioned granules pass through the holes or bores of the grating 4 and fall into the underlying collection chamber 12th

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Nf ₁ Di FläViö Pfevierö & O ₁ ätä _t ä, Blfba (CÖ) Italy

SUMMARY

Granulation mill / especially for plastic

Two rotors (6) with horizontal axes are arranged side by side in a single stator cavity (2) and are located below a wide filling funnel ^ (3) ₄ A respective selection grid (4) is assigned to each rotor and has essentially the same Wheels of curvature like the rotor. The Granulationsmühlö should process the input material effectively with low weight and size of the mill. Every type of material (small / large, light and heavy) can be processed in this way by the granulation mill *

Figure 1

Claims (2)

PJLT E N TAN WALTE DR. ING, E, HOFFMANN Π? 30-ΐ97ί) D | PL, -ING, W, E! UE DR. RER. NAT, K, HOFFMANN - DI PL, -! N G, W. LEHN DIPL.-ING, K- FDCHSLE · DR. RER, NAT, B, HANSEN ARABELLASTRASSE 4 [STERN HAUS) · D-8000 MO NCH EN Bl - TELEPHONE (08?) 911087 · TELEX 05-29Ä1? (PATH E) 34415 p / hl Previero N. di Flavio Previero & C. s.a.s. Erba (CO) Italy granulation mill, especially for plastic protection claims 1. Granulation mill, especially for plastic, characterized in that it has at least two Comprises side-by-side rotors (6) with parallel axes rotatable in a single stator cavity (2) are housed below a funnel (3), which funnel (3) has a width that corresponds to the stator cavity (2), and that a respective selection grid (4) is arranged below each rotor (6) which are curved with a radius of curvature which is slightly larger than that of the rotor (6). 2. Granulation mill according to claim 1, characterized in that g e k e η η * shows that the two 'rotors (6) are housed in separate zones of a housing (1), welöhe Zones are separated from one another by a lower partition (S),