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Overview of PFSD76-N flavor and fragrance spray drying plant
This plant is a new generation of spray drying unit designed and developed by the company with many years of experience in spray drying production. It is widely used in the drying and granulation of liquid materials such as emulsions, suspensions, and pastes in the food industry. As the spray drying and fluidized bed drying process are combined in one drying tower, the dryer can be operated within a relatively large range of particle size, moisture content and drying air temperature. So as to better control the degree and effect of particle agglomeration or granulation.
Basic requirements for process plant
The plant must be possible as a single-stage and multi-stage spray
dryer. The air temperature range at the inlet of the atomization
chamber is from 150 to 230°C The height of the static vertical bed
dryer (internal fluid bed) is adjustable, and the temperature is
100°C. The vibrating horizontal bed dryer (external fluid bed) must
contain 2 zones, one for drying (100°) and the other for cooling
the final product temperature to 30°C. There must be strong
fluidization in order to eliminate the caking agent and to ensure
the movement of particles as large as 900 μm (D 50 = 400 μm). What
is important is that it is possible to use different residence
times (to independently adjust the moisture content and cooling
temperature) by changing the height of the bed in each zone.
Considering the two beds, the total residence time can be from 10
to 60 minutes. The drying room must have several injection points
for anti-caking agents and fine powders (repetitive use from the
drying room, bed and sieve). The fluidized bed screen plate is
removable. For each fluidized bed (internal and external), 2 sets
of screens will be provided. The horizontal fluidized bed should be
capable of CIP cleaning and cleaning. The conversion between
single-level and multi-level variants should be easy to operate.
The air distributor of the atomizer must be capable of CIP cleaning
and cleaning. This part can be removed for inspection and cleaning
issues.
products parameters
Item/Parameters/Model | LPG | |||||
5 | 25 | 50 | 100 | 150 | 200-2000 | |
Inlet air temperature(℃) | 140-350 (automatically controlled) | |||||
Outlet air temperature(℃) | 80-90 | |||||
Max capacity of evaporation moisture (kg/h) | 5 | 25 | 50 | 100 | 150 | 200-2000 |
Driving form of rotary atomizer | Electric | Mechanical or electric | ||||
Rotating speed (rpm) | 25000 | 18000 | 18000 | 18000 | 15000 | 8000-15000 |
Diameter of rotary disc (mm) | 50 | 120 | 120 | 120 | 150 | 180-340 |
Heating resource | Electric | Electric | Electric+steam,oil or gas etc | Electric+steam, oil or gas etc | Electric+steam, oil or gas etc | Electric+steam, oil or gas etc |
Max electrical heating power (kw) | 18 | 36 | 60 | 81 | 99 | Depends on the speific situation |
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