Pelletizing device
AssigneeCPM Europe B.V.
InventorsViktor B. Udink, Maurice J. M. Bindels
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Abstract
A pelletizing device comprising a rotary drivable at least partly cylindrical die, wherein the cylindrical part comprises a multitude of radial openings for making of pellets and at least one roller rotatable around a stationary shaft, for pressing of material to be pelletized through the radial openings in the die, wherein the roller is mounted to the corresponding stationary shaft by means of at least one roller bearing and wherein the pelletizing device comprises an oil circulation system for lubricating each of the roller bearings of each of the rollers with oil.
Claims10
Pelletizing device comprising:
- a rotary drivable at least partly cylindrical die and within that a die cavity, an axis of rotation of the die being essentially horizontal and the at least one partially cylindrical die comprising multiple radial openings for forming of pellets, and
- at least one roller rotatable around a stationary, essentially horizontal shaft for pressing a material to be pelletized through the multiple radial openings in the at least partially cylindrical die, wherein the at least one roller comprises at both axial ends a sealing assembly and the oil circulation system comprises
- an oil pump
- an oil reservoir, connected to that
- a supply pipe for leading oil to each of the at least on roller bearings,
- a return pipe for returning oil from each of the at least one roller bearings to the oil reservoir,
- wherein for each of the roller bearings, the supply pipe and the return pipe end at axially different sides of the respective bearings,
- wherein the at least one roller is fixed to a corresponding stationary shaft by the roller bearings, wherein the pelletizing device comprises an oil circulation system for lubricating with oil each of the roller bearings of the at least one roller, and wherein, a roller is mounted on the stationary shaft by two respective roller bearings, wherein the supply pipe ends between both such roller bearings and the return pipe ends at axial external sides of the bearings, wherein the sealing assembly at least comprises an oil seal for sealing the oil circulation system and between the oil seal and the die cavity comprises a die cavity seal to prevent that material from the die cavity getting into the oil seal.
Dependencies are inferred from the claim text.