Heating Bulk Solids Using Air
Bulk solids pass slowly downward between a series of heat exchange elements.
Air (or gases), acting as the heat transfer medium, heats the material indirectly by conduction.
A mass flow discharge feeder creates uniform product velocity and regulates the product flow.
Bulk solids pass through the vertical heater by gravity.
The Advantages of Indirect Heat Exchange
Indirect air/gas heat exchange provides many advantages. The air used for heating the bulk solids never comes into direct contact with the product, which preserves the integrity of the product and eliminates the need to treat the incoming or outgoing air.
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