Compacting granulator
AssigneeNiro A/S
InventorsChristian R. Funder, Morten M. Hansen, Ove E. Hansen, Torben Hein, Tage M. Larsen, Elo Nielsen
Life of this patent
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Abstract
A compacting granulator for continuous, compacting granulation comprises a substantially horizontal rotatable drum, through which an eccentric shaft extends, which carries compacting means which partly transfer substantial amounts of energy to the granulate possible for attainment of a high degree of compacting, partly hurl up the material under treatment, so that the material, while hurled up, is brought in intimate contact with a treatment liquid sprayed through the nozzle. A stationary scraper as well as nozzles with individual feed supply ensures great flexibility and a reliable operation.
Claims11
A compacting granulator for continuous, compacting granulation and simultaneous mixing of at least one pasty or powdery material under supply of at least one fluid, characterized in comprising
- i) a drum (1) rotatable around a substantially horizontal longitudinal axis, said drum having a length which is bigger than its diameter, and means (6) for introducing pasty or powdery material at one end and means for removing granulate at the opposite end,
- (ii) a shaft (10) extending parallel with the longitudinal axis of the drum thought the length of the drum placed eccentrically in the drum (1) in a level below the longitudinal axis of the drum and displaced laterally in the rotational direction of the bottom part of the drum relative to the vertical plane through the longitudinal axis, said shaft being at at least the major part of its length present in the drum provided with compacting means (12), the parts of which that are farthest away from the shaft passing, when the shaft is rotating, through an area near the part of the drum wall which is closest to the shaft,
- iv) means (4,5) for rotating the drum (1) around its longitudinal axis as well as means (13) for adjustably rotating said shaft (10) in the same direction and with a number of revolutions, being a value which during the running of the granulator is from 10 to 1000 times bigger than the number of revolutions of the drum (1) for hurling up the tumbled material present in the drum such that it is thrown through a path outside the area, where the product would be present in the drum, was it not influenced by the compacting means,
- iv) at least one scraper (14) arranged stationarily in the drum for removing material from the inner wall of the drum for uniting it with material hurled up by the compacting means (12) and
- v) at least one nozzle (15) for distributing at least one fluid in the part of the drum which is passed by the material in uphurled up state.
Dependencies are inferred from the claim text.