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Professionals in Heavy Clay Works Professionals in ... - KELLER

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Break<strong>in</strong>g/pre-crush<strong>in</strong>g<br />

Frantumazione/Prelavorazione<br />

Bar dis<strong>in</strong>tegrators<br />

The bar dis<strong>in</strong>tegrators have the task<br />

to crush, to break up and pre-mill<br />

medium and small size clay clods,<br />

even with high hardness characteristics,<br />

and to eject as well small stones<br />

possibly present <strong>in</strong> the raw material.<br />

Such an action is realized by means<br />

of two rollers with parallel axis and<br />

placed side by side, one of them<br />

equipped with axially parallel bars,<br />

which rotate <strong>in</strong> opposite direction<br />

with different speeds.<br />

The bars <strong>in</strong>stalled on the slower cyl<strong>in</strong>der<br />

rotate with a peripheral speed<br />

three times higher compared to the<br />

surface of the smooth cyl<strong>in</strong>der,<br />

and impact the clay clod crush<strong>in</strong>g<br />

or eject<strong>in</strong>g them through the<br />

discharg<strong>in</strong>g hopper.<br />

Dis<strong>in</strong>tegratori a barrette<br />

I dis<strong>in</strong>tegratori a barrette hanno la<br />

funzione di frantumare, sm<strong>in</strong>uzzare<br />

e pre-lam<strong>in</strong>are zolle medio-piccole<br />

di argilla, anche con elevate caratteristiche<br />

di durezza, e di espellere<br />

contemporaneamente pietre<br />

presenti nella materia prima <strong>in</strong><br />

quantità limitata.<br />

Tale azione è espletata tramite due<br />

cil<strong>in</strong>dri ad assi paralleli ed affiancati,<br />

di cui uno munito di coltelli, che ruotano<br />

<strong>in</strong> senso opposto a velocità<br />

diverse.<br />

Le lame del cil<strong>in</strong>dro piccolo girano<br />

ad una velocità periferica pari a<br />

circa tre volte quella dei punti della<br />

superficie del cil<strong>in</strong>dro liscio ed <strong>in</strong>cidono<br />

la superficie delle zolle fratturandole<br />

o proiettandole con velocità<br />

allo scarico.<br />

15

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