Apparatus for preparing rubber scrap for recycling
AssigneeIngenieurburo S. Ficker Verfahrenstechnik
InventorStefan Ficker
Life of this patent
Estimating the term…
Abstract
Rubber particles having textile and/or metallic inclusions are treated by first placing the particles on a support surface and then pressing the particles against the support surface in a direction transverse to the support surface with a surface of a press body exerting a pressure of in excess of 10 kg/cm.sup.2 without contacting the surfaces with each other. Both of the surfaces are nonsmooth. In accordance with the invention the support surface and the press body are relatively displaced in a direction generally parallel to the support surface to subject the particles to shear.
Claims13
An apparatus for treating rubber particles having textile and/or metallic inclusions, the apparatus comprising:
- a nonsmooth support surface;
- a press body having a nonsmooth surface juxtaposed with the support surface, forming with the support surface a gap flaring opposite to a feed direction, and displaceable transverse and parallel to the support surface;
- feed means for continuously feeding the particles in the feed direction to the gap;
- first actuator means for pressing the particles against the support surface in a direction transverse to the support surface with the press-body surface at a pressure of in excess of 10 kg/cm.sup.2 ;
- and
- second actuator means for relatively displacing the support surface and the press body in a direction generally parallel to the support surface and to the feed direction and thereby subjecting the particles to shear to separate the inclusions from the rubber of the particles.
An apparatus for treating rubber particles having textile and/or metallic inclusions, the apparatus comprising:
- a nonsmooth and part-cylindrical support surface having a predetermined relatively large radius of curvature;
- feed means for placing the particles on the support surface;
- a press body having a nonsmooth surface juxtaposed with the support surface and displaceable transverse and parallel to the support surface, the press-body surface having a part-cylindrical portion of the large radius of curvature and immediately adjacent thereto a part-cylindrical portion of substantially smaller radius of curvature;
- first actuator means for pressing the particles against the support surface in a direction transverse to the support surface with the press-body surface at a pressure of in excess of 10 kg/cm.sup.2 ;
- second actuator means for relatively displacing the support surface and the press body in a direction generally parallel to the support surface and thereby subjecting the particles to shear;
- and
- means for rocking the press body while displacing it parallel to the support surface to alternately juxtapose the portions of its surface with the support surface, whereby when the small-radius portion is juxtaposed with the support surface the press-body surface forms a flaring sickle-shaped gap with the support surface.
Dependencies are inferred from the claim text.