Sodium Chloride Sodium Sulfate Spray Dryer

1. Equipment design conditions:

1. Material conditions

Material Name: Sodium Chloride, Sodium Sulfate

Material characteristics: liquid material

Initial moisture: 90% (wet basis)

Final moisture: 8-10% (wet basis)

Wet product throughput: 200L/h

Dry product hygroscopicity: yes

Liquid viscosity: weak

Material-liquid specific gravity: ~1.1 g/cm³

Liquid temperature: 5-30℃

PH value: 5-9

Dry product particle size: 120 mesh

2. Process conditions

Atomization method: centrifugal

Contact method of droplet and hot air: Parallel flow

Heat source and heating method: Steam (0.8--1.0MPa+electric heating)

Inlet air temperature: 250--300℃

Exhaust air temperature: 85-90℃

Dust removal method: host + primary cyclone + water film dust collector

System material requirements: 316L stainless steel at the material contact point, 304 air intake

3. Public works

Compressed air pressure: 0.6 Mpa

Power supply: 380V 50HZ three-phase four-wire

Weather conditions: 760mmHg 20℃ φ=80%

2. Process calculation:

Ⅰ. Material balance:

1. Dry product output: G dry=220-196=24kg/h

2. Water evaporation: W water=220×(90-8)÷(100-8)=196 kg/h

3. Wet processing capacity: G wet = 220kg/h

1 set of LPG-200 high-speed Centrifugal Spray Dryer according to the requirements

3. Main parameters of the equipment:

1. Effective inner diameter of tower body: Φ3500mm

2. Outer diameter of tower: Φ3660mm

3. Air volume: 3960kg/h

4. Inlet air temperature: 250--300℃; Outlet air temperature: 85--90℃;

5. Water evaporation: 196Kg/h

6. Dry powder moisture content: 8-10%

7. Heat for drying: 223629kcal/h.

8. Heating:

The steam heater is heated to 160 degrees, and the rest of the electric heating is compensated

Steam heater: 250 square

Electric heating: 99KW group control

9. One-stage cyclone separator: 1 CZT-Φ800 high-efficiency cyclone separator

10. Blower model: 4-72 Power: 5.5KW

11. Model of induced draft fan: 9-26 Power: 15KW

12. Screw pump: Model: G20-1 Power: 1.5KW (frequency conversion)

Pressure: 0.6--0.8Mpa Flow: 0.5-1.0m³/h

13. Atomizer: Model: R-XH--200 Power: 5.5KW (frequency conversion)

Speed: 18000-15000 rpm