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FL-Series Bottom Boiling Fluid Fluidized Bed Drying And Granulator
With Spray System For Solid Beverage Drinking Powder
FL fluid bed granulating and coating machine is a new model of
equipment for granulation, which integrates the techniques of
spray-granulating and fluid bed. It’s mainly suitable for the
concentrated solution and adhesive to prepare granules in Chinese
and western pharmaceutical, food and chemical industries.
Working Principle
The air flow sucked by the negative pressure of induced draught fan
will pass through the air filter, heat exchanger and delivery
conduit, finally enter the fluid bed granulating room from the
airflow distribution board to blast the raw powder (such as
original powder, Polybutene, absorbent, western medicine or food
etc.) into boiling fluidized state and start mixing at the same
time.
Liquid material and the compressed air for atomizing liquid
material enter the sprayer along their respective pipes. The
compressed air atomizes the liquid material into fine particles to
spray in the fluid bed granulating room, and then mix with raw
powder to bond into granules. At the same time, the granules will
be dried by hot air and a part of powder rises to the filter bag to
be collected. At a certain time, the left exhaust valve closes and
the filter bag in left chamber shakes up and down under the action
of air cylinder; the powder being shaken off then falls back to the
fluid bed to granulate again. After shaking, the left exhaust valve
opens again; after a while, the right exhaust valve closes and the
filter bag in right chamber shakes.
The filter bags in both chambers shake alternatively to clean the
collected powder to keep the filter bag unblocked and finish the
process of mixing, drying and granulating.
Our Advantages
>> Equipment Height
It's higher than normal ones, the cloth bag not easy to be wet and
blocked. Materials can be dried completely, drying speed is high,
energy consuption is low.
>> Distribution Net
The distribution net between air intake chamber and material
chamber are multi-layer, which is rigid, high temperature resistant
and not easy to be deformed. Quick installation, quick
dismantlement and easy to be cleaned.
The conventional ones have only two layers, a thin piece of
stainless steel wire net on a punched plate. Hard to be cleaned,
easily broken and transformable. Materials can not dried completely
and homogeneously.
>> The insulating layer thickness of the heating cabinet
Insulating layer of the heating cabinet is added to anti-scald and
reduce energy consumption. In addition, openable doors adopted,
convenient for changing accessories, cleaning and maintenance.
>> Air inlet proportion execution valve and air outlet
pneumatic execution valve
These two valves equiped, bag shaking system can be closed tightly
to get a good dedusting effect.
>> Steam proportion valve is equipped
Temperature can be kept around the set value (about ±2°C), which is
good for maintaining the medical stability and saving steam energy.
Only 1/3 energy consumption when the set temperature reached.
>> Pressure relief device - the top relief valve
The fluidized bed chamber is in a state of negative pressure normal
production, if it is in positive state then pressure will be
relieved from the pressure relief port to avoid explosion and other
unexpected accidents.
>> Bag shaking device
The bag shaking device is divided into two parts, left and right
ones with many small cloth bags, and with continuously shaking and
dedusting function.
The more cloth bags are designed, the larger area can be used for
filter and dry, high efficiency, fast speed, time and energy saved.
While, normal machine only has a one-piece shaking bag without any
small bags. Bags can be shook only after the machine stops. Low
efficiency, slow drying speed, long time and large energy wasted.
Besides, our bag shaking device has a pneumatic location device to
fix and protect bags for better dust removal effect. And the bottom
of the device extends to the outside of the chamber to guarantee
practicality. Some other factories’ apply gas seal at the device
bottom, but after a long time of high temperature operation, the
chamber will transform and sealing will not be tight any more.
Therefore, material will be run off and great loss will be caused.
>> Observation light is installed in the chamber
Compared with other manufacturers, it is in the outside, the
operation and drying conditions inside the chamber cannot be
observed clearly.
>> Moreover, according to different countries geographically location (in
humidity) and different environmental requirements,
dehumidification and second dust removal system can be adopted to
achieve their requirements of material, techniques and environment
protection.
Main Technical Data:
Model | 120 |
Volume (L) | 420 |
Amount to be treated (kg/per time) | 80/160 |
Power of fan (kw) | 18.5 |
Consume of steam 0.4MPa(kg/h) | 211 |
Consume of compressed air (m3/min) | 1.0 |
Noise,dB (A) | (fan is installed separately) ≤75 |
Main machine height (m) | 2.2×1.65×3.3 |