I.Market Background

In Austria, industries such as food, chemical, and environmental processing demand higher standards for granule drying, particularly in continuous operation, uniform drying, and material compliance. Conventional batch systems are increasingly unable to meet stable production requirements under strict efficiency standards.

II.Client & Application Scenario

Client is a chemical processing company in Austria handling medium-sized granules with variable moisture content.Processed materials are seasonings, along with continuous operation to match upstream feeding systems.

III.Our customized product configuration

Equipment design conditions:

1. Material conditions

Material Name: Seasoning 

Processing capacity: 300 kg/h 

Raw material temperature: 15-20°C (designed for room temperature)

2. Process conditions

• Drying method: Linear vibrating fluidized bed 
• Contact method between materials and hot air: Cross-flow type
• Heat source and heating method: Steam 
• Drying inlet air temperature: 150–160°C
• Drying exhaust temperature: 90–100°C 
• Product discharge method: Main machine 
• Dust removal method: Primary cyclone + water scrubber

Material: Upper chamber, fluidized bed, and discharge hopper are made of 316L stainless steel, while the rest are carbon steel. 

Power supply: 380V,3-phase, 50Hz Power supply: 380V,3-phase, 50Hz

Floor area: See attached drawing Floor area: See attached drawing

3. Public Utilities

• Power supply: 380V,3-phase, 50Hz
• Floor area: See attached drawing

Selection of Dry Linear Vibration Fluidized Bed

^{Vibrating fluidized bed dryer model: ZLG-6×0.45, bed surface area: 2.7m²}

1.Working Principle and System Description

(1) Working Principle

Vibrating fluidized bed dryer utilizes vibration force generated by a vibration motor to induce motor oscillation. Materials hop forward on the air distribution plates while hot air introduced from the bottom of the drying bed maintains them in a fluidized state, ensuring thorough contact with the hot air for heat and mass transfer.

Cold air is heated by the heat exchanger and then enters the dryer's air chamber through the fluidized bed air inlet. Wet materials are uniformly and continuously fed into the fluidized bed through the inlet. Under the dual effects of vibrations generated by the motor and Evenly distributed hot airflow through the air distribution plate, the materials remain suspended and fully contact the hot air stream, completing the drying process. Dried exhaust gas is filtered through dust removal equipment before being extracted and discharged via the induced draft fan, while the dried products are discharged through the outlet.

(2) System Description

1. This vibrating fluidized bed dryer is primarily used for industrial salt drying processes, with the following specific functions:

a）Flow rate: 300 kg/h

b）Product collection method: Main unit discharge + primary cyclone separator + water dust removal

c) Material: Upper chamber, fluidized bed, and discharge hopper are made of 316L stainless steel, while the rest are carbon steel.

2. Equipment name: Vibrating Fluidized Bed Dryer

d) Device model: ZLG-6×0.45, Bed area: 2.7㎡

    Drying section length: 5 m, drying area: 2.25 m², cooling area: 0.45 m²

e)Hot air inlet temperature: 150–160°C

f) Cooling air inlet temperature: Ambient temperature

g)System installed power: 31.5 kW

h) Heating method: steam

i) Steam consumption: 300–400 kg/h;

2. Hot Air System

• 2.1 Relevant Parameters

System air volume: ~6000 m³/h

Preheating air temperature: ambient temperature; post-heating air temperature: 150–160°C

• 2.2. Radiator

Total area = 200㎡

• 2.3 Radiator material: Seamless tube with aluminum fins
   
• 2.4. Hot Air Blower

Model: 4-72-4.5A 7.5KW
 

Airflow rate: 5712 m³/h
 

Wind pressure: 2554 Pa
 

Material: A3 integral bracket with vibration damping pad. Air regulating valve: DN800
 

Quantity: 1 unit

• 2.5 Hot Air Duct

Hot air duct system consists of one main hot air duct and three branch hot air ducts. Each branch duct is equipped with an air distribution valve to regulate airflow volume for individual units within the control box.
 

Hot air main pipe diameter: DN400, quantity: 1 set, material: 2mm A3 steel
 

Hot air branch pipe diameter: DN360, quantity: 3 sets, material: 2.5mm A3 steel
 

Soft connection: DN360, Quantity: 4 sets, Material: Double-layer canvas
 

Cooling air duct diameter: DN300 | Quantity: 1 set | Material: 2mm A3 steel
 

Thermal insulation of hot air ducts is handled on-site by the user.

  3.Drying host:
 

• 3.1. Model of vibrating fluidized bed dryer: ZLG-6×0.45, bed area: 2.7 m²
   
• 3.2 Bed width: 0.45 m, drying section length: 5 m, cooling section length: 1 m
   
• 3.3. A cleaning door is installed on the side of the lower chamber of the dryer to facilitate removal of materials that fall beneath the mesh plate. Lower chamber is lined with 2mm thick 316L steel, with 6mm Q235A steel wall panels and an outer seal of 1.5mm A3 steel.
   
• 3.4. Upper housing of the dryer is equipped with a temperature-resistant observation window to allow operators to monitor the internal conditions of the dryer at any time. The upper cover is made of 3mm thick 316L stainless steel with reinforcement.
   
• 3.5. The overall equipment support structure features aluminum silicate insulation in the lower housing, with an insulation thickness of 50 mm.
   
• 3.6. Mesh Plate: Hole diameter: φ2mm, Opening rate: ~5%, Opening structure: Straight holes arranged in a regular triangular pattern, Material: 2mm³ 316L stainless steel
   
• 3.7 Vibration Motor

Model: 1.5Kw×2, Excitation force: Vibration frequency: 960 r/min

Quantity: 2 units, with adjustable excitation force and excitation angle

4. Exhaust gas treatment system
 

• 4.1 Relevant Parameters

                System air volume: ~6000 m³/h

• 4.2 Exhaust Main Pipe

      Exhaust duct system consists of one main exhaust duct and five branch ducts, each equipped with an air control valve to regulate          exhaust airflow for individual units.

    Exhaust header diameter: DN400, quantity: 1 set, material: 2.0mm316L stainless steel

    Exhaust branch pipe diameter: DN300, quantity: 5 sets, material: 2.0mm316L stainless steel

    Soft connectors: 5 pieces, Material: Double-layered canvas

• 4.3 Primary Cyclone Separator
        Model: XF-875, Quantity: 1 unit, Material: 2mm 316L stainless steel
        Manual discharge valve: DN200, Quantity: 1 unit, Material: 316L
   
• 4.4 Induction Fan

       Model: 4-72-5A-15Kw

       Airflow rate: 7728 m³/h, Air pressure: 3145 Pa

       Air balancing valve: DN500

       Quantity: 1 unit Material: Q235A integral bracket with vibration damping pad

5. Detection and Control System

• 5.1 Whole Machine Voltage and Current Detection and Display
• 5.2 All motors are controlled via centralized button operation
   

IV Scope of Supply and Description:

VI. List of Wearable Parts

Client Feedback

Client reported stable material movement without noticeable clogging or accumulation. The drying process remained consistent under continuous operation, aligning well with the existing production line.

Conclusion

Case demonstrates that in Austria’s high-standard industrial environment, vibrating fluidized bed dryers—through optimized structural parameters such as bed dimensions, vibration frequency, and perforation design—can deliver stable drying and continuous production for granular materials.