The 2-Minute Rule for FBD principle
The 2-Minute Rule for FBD principle
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When processing toxic or flammable substances, standard hot air fluidized bed dryers are usually not a very good solution given that There's a threat of fire or explosion if flammability restrictions are exceeded.
As the new air passes by way of container granules begin to suspend while in the air to become dry (referred to as a fluidized point out), the process is named fluidization.
You will discover differing kinds of fluidized bed dryers, Every single with its individual design and application. Here are a few prevalent sorts:
The dryer is usually built up of stainless steel. A removable bowl is attached at the base from the dryer that may be used for loading and unloading of fabric. The stainless steel bowl incorporates a perforated foundation of a wire mesh supporting for substance that may be staying dried.
Drying procedures are of enormous importance in a number of industries – including food, pharmaceutical, and chemical – due to their capacity to lower the dampness articles in resources.
This condition is known as fluidized point out. Each granule is totally dried from the as, which envelops them.
The detachable bowl along with the retaining screen is crammed with the moist granules that should be dried. The bowl is pushed in the FBD.
It also contains a surge hopper with a cloth inlet – to feed soaked resources to the conveyor, a rotary valve near the hopper – to aid the uniform move of the fabric, a gas inlet chamber – to allow warm air for drying, an exhaust air duct with blower– to allow economical regional exhaust ventilation, and finally a dust collector – to gather substance dust inside the exhaust air.
To operate the device in manual method only operator degree password is necessary and to run the equipment in Auto mode five degree password is needed the main points are offered below.
The fluidized bed dryer filter bag is built up of different style of outstanding high quality of fabrics, According to prerequisite of material involving in drying.
A warm filtered Air is passed throughout the Bowl to get dry. the granule particle more info suspends inside the air after remaining lifted from The underside side in the bowl with the help of an air stream.
Right after bag filters, this air passes as a result of HEPA filters for the reason that this air is available in immediate contact with the merchandise. This processed air is heated by a heating technique which delivers the temperature of air based on the requirements.
Start off-up: The FBD is begun, as well as a stream of preheated air is introduced to the drying chamber from The underside. The velocity in the air is cautiously managed to initiate fluidization with no entraining a lot of particles.
Air from processing unit will come with the provide duct and enter right into a bowl of FBD or fluid mattress dryer via Air gate. Air gate is controlled by HMI to open up and shut it. When it truly is opened air enters in to the bowl of fluid mattress read more dryer and when it is actually closed air entry can also be stopped.