Roller mill
AssigneeFLSmidth A/S
InventorsRasmus Thranberg Nissen, Morten Larsen
Life of this patent
Estimating the term…
Abstract
A roller mill for grinding particulate material, such as cement raw materials, cement clinker and similar materials has a rotatable grinding table with a substantially vertical centerline and a number of rollers being configured for interactive operation with the grinding table and turning about separate roller shafts which are fixed to a rotatable center shaft with a substantially vertical centerline. The center shaft and the grinding table are fixed one to the rotor and the other to the stator of the same motor, which may have the capability of rotating both the grinding table and the center shaft.
Claims17
A roller mill for grinding particulate material comprising:
- a rotatable grinding table having a substantially vertical centerline;
- a number of rollers configured for interactive operation with the grinding table, each roller rotating about a respective roller shaft;
- each roller shaft attached to a rotatable center shaft, the center shaft having;
- a substantially vertical centerline;
- a motor comprising a rotor and a stator;
- and
- one of the rotor and the stator being connected to the center shaft and the other of the rotor and the stator being connected to the grinding table, the motor driving rotation of the table and rotation of the center shaft.
A roller mill comprising:
- a plurality of rollers;
- a plurality of rotating shafts, each of the rotating shafts connected to a respective roller of the plurality of rollers;
- a center shaft, the center shaft attached to each of the rotating shafts of the plurality of rotating shafts;
- a grinding table adjacent to the rollers;
- a motor having a rotor and a stator, the motor configured to drive rotation of the rollers and the center shaft, the rotor attached to the center shaft and the stator attached to the grinding table or the stator attached to the center shaft and the rotor attached to the grinding table.
Dependencies are inferred from the claim text.