SET OF BREAKING FITTINGS FOR DISK MILL Russian patent published in 2006 - IPC B02C7/12 

FIELD: constructive members for disk mill.

SUBSTANCE: set of breaking fittings has two disks with full-length, shortened and small knives and channels provided between knives and closed in alternation at the side of circumferential inlet and outlet edges of sections by connecting members extending between knives. Centers of circles of arcs of said connecting members are arranged eccentrically relative to disk centers. Central circular zone of disks is made conical, with inclination angle of generatrix relative to disk sector supporting surface making 1-6 deg. Open channels provided between knives at the side of circumferential inlet edge are arranged in alternation with the same channels closed with additional connecting members to form doubled full-length, shortened and small knives. Full-length doubled knives are arranged in alternation with two small doubled knives, between which is disposed one shortened double knife. Length of channels of full-length doubled knives is equal to length of channels of doubled shortened knives and exceeds length of channels of doubled small knives. Working surfaces of shortened doubled and small doubled knives may be positioned at an angle of 1-6 deg relative to supporting surface of sections. All the knives may be arranged tangentially to circle of inlet opening of stator disk. Non-operating bottom surfaces of channels provided between knives and knife channels may be positioned at an angle of 1-6 deg relative to supporting surface of sections.

EFFECT: improved breaking quality, increased capacity, reduced consumption of power and increased service life of knife cutting edges.

4 cl, 7 dwg