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Methods for manufacturing encapsulated granular material, methods for drying coating materials, and fluidized bed dryers
Methods for manufacturing encapsulated granular material, methods for drying coating materials, and fluidized bed dryers
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机译:封装粒状材料的制造方法,涂层材料的干燥方法和流化床干燥机
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摘要
Disclosed is a method for shortening the drying time for drying an encapsulated material including a coating material containing water without causing deformation of the coating when drying. The method employs a fluidized bed dryer for drying coating materials that contain water and that form a coating when the water evaporates. A first drying step involves floating and fluidizing the encapsulated material and limiting a theorisable evaporating water content ?W so that dimples or deformation do not occur in the coating of the encapsulated granular material while measuring a water content or temperature of gas exhausted from the fluidized bed dryer; and a second drying step, performed after the measure water content is reduced below a prescribed amount or the measured temperature has increased, of blowing in gas to the fluidized bed dryer so that the theorisable evaporating water content ?W rises above that during the first drying step.
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