Solid material comminution or disintegration – Apparatus – Including means applying fluid to material
Patent
1998-02-06
1998-10-20
Husar, John M.
Solid material comminution or disintegration
Apparatus
Including means applying fluid to material
241 79, 241122, B02C 1710
Patent
active
058234500
ABSTRACT:
The present invention relates to a ring roller mill which, among other things, can be used in connection with the manufacture of cement for grinding of mineral clinker materials, slags, and similar materials. The mill has a grinding ring 1 and a roller 2. Between the roller 2 and the grinding ring 1, the partially crushed material forms a grinding bed 4 and on each side of the grinding ring 1 dam rings 5 are fitted. On the outer side of the dam rings 5 are fitted collecting jackets 6, to which scoop plates 7 are fixed. The jacket collects the material which flows over the dam ring and by means of the scoop plates the material is lifted round with the collecting jacket. Since the speed of the jacket is lower than the critical speed, the material will drop off from the uppermost part of the jacket, being dispersed towards the bottom of the latter, and is subsequently returned to the grinding path. Effective internal conveyance is achieved with the mill according to the invention, hence eliminating the need for any external conveyance of overflow material.
REFERENCES:
patent: 1220155 (1917-03-01), Fraser
patent: 1693247 (1928-11-01), Molz
patent: 1831625 (1931-11-01), Hardinge
patent: 1938045 (1933-12-01), Schmidt
patent: 3537658 (1970-11-01), Jurgen Janich
patent: 3614002 (1971-10-01), Dore
patent: 5649667 (1997-07-01), Folsberg
patent: 5716015 (1998-02-01), Folsberg
F.L. Smidth & Co. A/S
Husar John M.
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