Fluid bed granulator
Assigneesthyssenkrupp Fertilizer Technology GmbH, thyssenkrupp AG
InventorsMatthias Potthoff, Harald Franzrahe
Life of this patent
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Abstract
A fluidized bed granulator for production of urea-containing or nitrate-containing granules may include a granulator interior having granulator interior walls with a first granulator side wall, a second granulator side wall, a granulator front wall that extends transversely to the granulator side walls, and a granulator back wall that likewise extends transversely at the opposite end of the granulator interior from the granulator front wall, a horizontal perforated plate that bounds the granulator interior in a downward direction, a seed entry opening, and a granule exit opening that is disposed at a distance in front of the granulator back wall. A process for producing urea-containing or nitrate-containing granules may utilize the fluidized bed granulator.
Claims27
A fluidized bed granulator for production of granules that contain urea or nitrate, the fluidized bed granulator comprising:
- a granulator interior having granulator interior walls that include a first granulator side wall, a second granulator side wall, a granulator front wall that extends transversely to the granulator side walls, and a granulator back wall that extends transversely at an opposite end of the granulator interior from the granulator front wall;
- a horizontal perforated plate that bounds the granulator interior in a downward direction;
- a seed entry opening;
- a granule exit opening disposed at a distance in front of the granulator back wall;
- and
- deflection plates in the granulator interior configured to cause a deflection of a flow of granule particles in the granulator interior such that the granule particles are deflected at least once in a direction other than an initial flow direction toward the granule exit opening, wherein the deflection plates are arranged in a U-shape or such that the deflection plates ensheath the granule exit opening.
A fluidized bed granulator for production of granules that contain urea or nitrate, the fluidized bed granulator comprising:
- a granulator interior having granulator interior walls that include a first granulator side wall, a second granulator side wall, a granulator front wall that extends transversely to the granulator side walls, and a granulator back wall that extends transversely at an opposite end of the granulator interior from the granulator front wall;
- a horizontal perforated plate that bounds the granulator interior in a downward direction;
- a seed entry opening;
- a granule exit opening disposed at a distance in front of the granulator back wall;
- and
- deflection plates in the granulator interior configured to cause a deflection of a flow of granule particles in the granulator interior such that the granule particles are deflected at least once in a direction other than an initial flow direction toward the granule exit opening;
- wherein the first granulator side wall and the deflection plates are arranged to form a U-shape or such that the first granulator side wall and the deflection plates are arranged to ensheath the granule exit opening.
A fluidized bed granulator for production of granules that contain urea or nitrate, the fluidized bed granulator comprising:
- a granulator interior having granulator interior walls that include a first granulator side wall, a second granulator side wall, a granulator front wall that extends transversely to the granulator side walls, and a granulator back wall that extends transversely at an opposite end of the granulator interior from the granulator front wall;
- a horizontal perforated plate that bounds the granulator interior in a downward direction;
- a seed entry opening;
- and
- a granule exit opening disposed at a distance in front of the granulator back wall;
- wherein the granule exit opening is connected first to a coarse screen followed by a separate fluidized bed cooler.
Dependencies are inferred from the claim text.