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US 2006/0123602 A1Published application
Apparatus for producing nitrate granules
AssigneeOmnia Fertilizer Limited
InventorJohannes Eygelaar
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AssigneeOmnia Fertilizer Limited
InventorJohannes Eygelaar
Estimating the term…
This invention relates to an apparatus (10) for producing nitrate granules. The apparatus (10) includes a first fluidised bed (12) which is supplied with air (18) that has been conditioned to a relative humidity of less than 30% at 40 (C and heated to a temperature of 40 (C to 100 (C. One or more spray nozzles (26) are provided for spraying a nitrate melt into the first fluidised bed (12) to form nitrate granules. The apparatus (10) also includes a second fluidised bed (14) which is in direct communication with the first fluidised bed (12). Nitrate granules formed in the first fluidised bed (12) flow directly to the second fluidised bed (14) where they are cooled to a temperature of less than 60 (C. The nitrate granules produced by the apparatus (10) and process of the invention are spherical in shape, hard and dry and do not break down easily during handling. A main advantage of the apparatus (10) according to the invention is that it is compact, capable of very high product rates, and can be operated by one operator.
1-29. (canceled)
An apparatus for producing granules, the apparatus including:
The apparatus according to claim 40, wherein the conditioning Zone of the first fluidised bed has a length of about 0.7 m and the granulating Zone of the first fluidised bed has a length of about 1.7 m.
A method for producing nitrate granules in a fluidised bed granulator, wherein recycled particles from the granulator are first passed through a fluidised bed conditioning Zone having no spray nozzles, before being passed to a fluidised bed granulation Zone which includes at least one spray nozzle.
Dependencies are inferred from the claim text.