Pneumatic atomization followed by spray drying.
Clean compressed air is heated and used as the atomizing and drying medium in a two-fluid nozzle. The atomized liquid mixes with the hot air, moisture evaporates, and the dry powder is separated from the exhaust gas.
| Item | Temperature Difference | QPG-5 | QPG-25 | QPG-50 | QPG-100 | QPG-150 | QPG-200 |
| Evaporation Capacity (kg/h) | Δt = 150°C–90°C | 1.5 | 7.5 | 15 | 30 | 45 | 60 |
| Evaporation Capacity (kg/h) | Δt = 200°C–100°C | 2.5 | 12.5 | 25 | 50 | 75 | 100 |
| Evaporation Capacity (kg/h) | Δt = 250°C–100°C | 3.75 | 18.75 | 37.5 | 75 | 112.5 | 150 |
| Evaporation Capacity (kg/h) | Δt = 300°C–100°C | 5 | 25 | 50 | 100 | 150 | 200 |
| Evaporation Capacity (kg/h) | Δt = 350°C–110°C | 6 | 30 | 60 | 120 | 200 | 240 |
| Compressed-Air Consumption (m³/min) | — | 0.9 | 0.9 | 1.1 | 1.5 | 2.7 | 3.4 |
| Compressed-Air Pressure (MPa) | — | 0.4 | 0.6 | 0.6 | 0.7 | 0.7 | 0.7 |
| Heat Source | — | Electricity; electricity + steam; coal- or oil-fired hot-air furnace | Electricity; electricity + steam; coal- or oil-fired hot-air furnace | Electricity; electricity + steam; coal- or oil-fired hot-air furnace | Electricity; electricity + steam; coal- or oil-fired hot-air furnace | Electricity; electricity + steam; coal- or oil-fired hot-air furnace | Electricity; electricity + steam; coal- or oil-fired hot-air furnace |
| Heating Capacity (×10⁴ kcal/h) | — | 1 | 5 | 10 | 20 | 30 | 40 |
| Fan Power (kW) | — | 0.75 | 4 | 7.5 | 11 | 15 | 18.5 |
