Spray Dryer
Design Condition Summary of Special Centrifugal Spray Dryer
Time：2018.04.10
Design condition summary of special centrifugal spray dryer for condiments:
1. Feed liquid condition
Material Name: Soy Protein (Polypeptides)
Initial moisture: 60%
Final moisture: 5%
Moisture evaporation: 250Kg/h
Feed liquid temperature: 20°C(normal temperature)
Feed liquid density: ≤1.2g/cm3
2. Process conditions
Atomization method: Centrifugal
Contact method of droplet and hot air: Parallel flow
Heat source and heating method: LPG fuel gas hot blast stove
Inlet air temperature: 170～220°C(Temperature rise designed according to 220°C)
Exhaust air temperature: 80～100°C (designed according to 90°C)
Dust removal method: Two-stage cyclone + water film dust removal
Product collection method: Dehumidification cool air cooling centralized material receipt
System Material Requirements: See Configuration Checklist
3. Design meteorological conditions (standard)
Atmospheric pressure: 101.3KPa
Ambient temperature: 20°C
Relative humidity: 80%
4. Public works
4.1. Power supply
Power supply: 380V, 3-phase 5-wire, 50Hz
Power: about 61.7kw
4.2. Compressed air
Pressure: 0.6 MPa
Dosage: 0.01m3/min
4.3. Natural gas consumption
Natural gas consumption: 77 Nm3/h
4.4. Water consumption
Pressure: 0.2MPa cleaning nozzle
Dosage: 150kg/min
4.5, equipment floor area about (length × width × height) m
Length×width×height 8×10×14
Condiment special centrifugal spray dryer calculation process
1. Determinate parameters
Moisture evaporation W water = 250kg/h
Dry air inlet temperature t1=180°C
Dry exhaust air temperature t2=90°C
Product moisture-based moisture content (early water) ω1=60%
Product moisture-base moisture content (final water content) ω2=5%
Ambient temperature t0=20°C
Humidity of air at ambient temperature d0=0.011kg water/kg dry air
Raw material temperature: θ1 = 20°C
The product temperature is 15°C lower than the exhaust air temperature, ie θ2=70°C (uncooled)
Dry air moisture content d1, indirect heat exchange, d1=d0=0.011kg water/kg dry air
1. Feed liquid condition
Material Name: Soy Protein (Polypeptides)
Initial moisture: 60%
Final moisture: 5%
Moisture evaporation: 250Kg/h
Feed liquid temperature: 20°C(normal temperature)
Feed liquid density: ≤1.2g/cm3
2. Process conditions
Atomization method: Centrifugal
Contact method of droplet and hot air: Parallel flow
Heat source and heating method: LPG fuel gas hot blast stove
Inlet air temperature: 170～220°C(Temperature rise designed according to 220°C)
Exhaust air temperature: 80～100°C (designed according to 90°C)
Dust removal method: Two-stage cyclone + water film dust removal
Product collection method: Dehumidification cool air cooling centralized material receipt
System Material Requirements: See Configuration Checklist
3. Design meteorological conditions (standard)
Atmospheric pressure: 101.3KPa
Ambient temperature: 20°C
Relative humidity: 80%
4. Public works
4.1. Power supply
Power supply: 380V, 3-phase 5-wire, 50Hz
Power: about 61.7kw
4.2. Compressed air
Pressure: 0.6 MPa
Dosage: 0.01m3/min
4.3. Natural gas consumption
Natural gas consumption: 77 Nm3/h
4.4. Water consumption
Pressure: 0.2MPa cleaning nozzle
Dosage: 150kg/min
4.5, equipment floor area about (length × width × height) m
Length×width×height 8×10×14
Condiment special centrifugal spray dryer calculation process
1. Determinate parameters
Moisture evaporation W water = 250kg/h
Dry air inlet temperature t1=180°C
Dry exhaust air temperature t2=90°C
Product moisture-based moisture content (early water) ω1=60%
Product moisture-base moisture content (final water content) ω2=5%
Ambient temperature t0=20°C
Humidity of air at ambient temperature d0=0.011kg water/kg dry air
Raw material temperature: θ1 = 20°C
The product temperature is 15°C lower than the exhaust air temperature, ie θ2=70°C (uncooled)
Dry air moisture content d1, indirect heat exchange, d1=d0=0.011kg water/kg dry air