A Tray Dryer is a batch drying system in which wet material is spread uniformly on trays and dried by circulating heated air within an enclosed chamber. The hot air flows either horizontally or vertically across the trays, enabling gradual and controlled moisture removal. Tray Dryers are designed for simple operation, consistent drying performance, and flexibility in handling a wide range of solid materials, particularly where gentle drying is required.
Used For
Batch drying of powders, granules, and solid materials
Drying of heat-sensitive and low-temperature products
Small to medium production capacities
Drying applications requiring long residence time
Laboratory, pilot, and industrial-scale drying operations
Industrial Tray Dryer
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For proper thermal design and sizing of a Tray Dryer, the following information is required:
Material Properties
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Material name and description
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Physical form (powder / granule / solid)
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Bulk density
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Sensitivity to temperature
Moisture & Batch Data
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Initial moisture content (% w/w)
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Required final moisture content (% w/w)
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Batch size (kg/batch)
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Estimated drying time
Thermal & Process Parameters
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Maximum allowable product temperature (°C)
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Drying air temperature (°C)
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Ambient air conditions
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Air circulation pattern requirement
Operational & Utility Data
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Heating medium availability
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Power supply details
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Tray dimensions and quantity
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Space and installation constraints
Purpose of This Data
This data is used to determine chamber size, number of trays, heating capacity, airflow arrangement, and drying cycle time to ensure uniform drying and repeatable batch performance.
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