About FBD principle
About FBD principle
Blog Article
To achieve best results in the FBD method, many key issues ought to be taken into account:
The air velocity and temperature are crucial in this process to make sure the particles present inside the item mattress keep on being inside of a suspended state, So reaching fluidization.
You can find differing kinds of fluidized bed dryers, Each individual with its have design and application. Below are a few widespread sorts:
Over-all, while the fluidized bed dryer is often a strong piece of kit in drying processes, particular restrictions must be considered just before their implementation.
FBD luggage are finger-like in composition to increase the surface spot of your drying mattress that assists to enhance the drying rate and reduce the drying time over the fluidized mattress drying approach.
Needs elevated gas dealing with resulting from in depth recirculation of exhaust gas for high thermal effectiveness Procedure.
That is achieved as the velocity of the recent air is greater than the terminal settling velocity with the particulate solids. Put simply, the strain made by draft of scorching fluid (In cases like this Hot Air) will be able to not only balance the weight of (along with gravitation power exerted by) the moist mass, but additionally, can elevate it upwards in opposition to the gravitational drive.
Elevated fuel dealing with is necessary due to sizeable exhaust fuel recirculation for high thermal performance Procedure.
The entrained particles continue to stick onto The within surface area of the baggage. Intermittently the luggage are shaken to eradicate the entrained particles.
Furthermore, due to the vigorous mixing throughout the check here bed, there is a reduced chance of temperature variants in the mattress, additional avoiding thermal harm to the particles.
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Airflow price/fuel velocity: Raising gasoline velocity increases drying rate but need to be taken care of at an optimized level (to not rapid or much too slow). Gas velocity has no effect on particles with substantial interior resistance to humidity transfer.
This air is filtered throughout the filter and afterwards passes in the mattress of the material. This airflow is generated because of the enthusiasts fitted at the top of your equipment. The flow level as well as functioning temperature are altered get more info through the control panel.
If Component of the thermal Vitality for drying is provided by The inner heat exchanger, substantial thermal performance is normally obtained.