US 11,090,656 B2
Milling bowl
Alexander Klokow, Duesseldorf (DE); Stefan Hamann, Duesseldorf (DE); Heide Hammesfahr, Duesseldorf (DE); and Karl-Heinrich Zysk, Duesseldorf (DE)
Assigned to Loesche GmbH, Duesseldorf (DE)
Appl. No. 15/776,222
Filed by Loesche GmbH, Duesseldorf (DE)
PCT Filed Nov. 19, 2015, PCT No. PCT/EP2015/077039
§ 371(c)(1), (2) Date May 15, 2018,
PCT Pub. No. WO2017/084708, PCT Pub. Date May 26, 2017.
Prior Publication US 2019/0262838 A1, Aug. 29, 2019
Int. Cl. B02C 15/00 (2006.01); B24B 37/025 (2012.01); F16H 37/04 (2006.01)
CPC B02C 15/003 (2013.01) [B02C 15/006 (2013.01); B24B 37/025 (2013.01); F16H 37/041 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A milling bowl for use in vertical mills, having a lower ring-shaped base flange and
an upper ring-shaped head flange for forming or receiving a grinding bed of the vertical mill,
wherein the milling bowl is ring-shaped and constructed to be hollow in an area surrounding its axis of rotation, and
a center piece, which connects rigidly the head flange and the base flange,
wherein a cavity, which is formed between casing shells of the center piece and the two flanges, includes a cured casting compound that fills in the cavity, and
wherein the two flanges along with the center piece and the cured casting compound form a rotationally rigid milling bowl,
wherein
a) the center piece provided between the head flange and the base flange is a separate piece from the head flange and the base flange, and
b) the center piece is of double-walled design with the two casing shells, and
c) the casing shells of the center piece feature reinforcement anchors, which are embedded into the cured casting compound.