Patent ID: 7886996

Claim:
An apparatus for producing a crushed product comprising a stationary crushing disc provided in its central portion with a raw material entrance port and in its outer region on its underside with a crush face, a rotatable crushing disc disposed beneath the stationary crushing disc in opposition thereto so as to form a mill gap therebetween and provided, on its upper side, in its inner region with an abrader face, in its outer circumferential region with a fine-crush face and in its inner region with a plurality of rough-crush dispensing grooves extending from a central portion thereof to the fine-crush face, a driving shaft which is fixedly connected to the central portion of the rotatable crushing disc and extends through and above the stationary crushing disc, a power transmission means for transmitting a rotational power from a driving device to the driving shaft while preventing heat transfer, a mill gap adjusting means which supports the rotational crushing disc through the driving shaft and is operable to adjust the mill gap between the stationary and the rotatable crushing discs, a cooling means for cooling the stationary crushing disc and/or the rotatable crushing disc, a raw material supply path for supplying raw material to the raw material entrance port in the stationary crushing disc and a crushed product receiver for receiving the crushed product expelled out of the mill gap at the disc periphery.