Spray dryer SD-P5

hot airairwith heat exchanger

Short description
SD-P5 spray dryer is a drying equipment suitable for liquid materials with low boiling point and high viscosity. Improved from domestic and international spray dryer designs, it rapidly dries atomized liquid into finished powder separated by cyclone and discharged by induced draft fan.

Working principle
Cold air is filtered, heated and introduced from the top air distributor; hot air spirals down the spray tower. Liquid is pumped to the centrifugal atomizer at the top of the tower and torn into fine droplets. Droplets and hot air contact in parallel, performing rapid heat exchange: moisture vaporizes and the material dries in seconds. The product is collected via cyclone separation and exhaust is removed by an induced draft fan.

Features

• Very short drying time (material residence around 5 seconds), preserving active ingredients.
• Large-diameter spray tower adaptable for various materials; adjustable inlet air temperature for wide working range.
• Comprehensive equipment configuration to meet production requirements.
• Simple operation and wide adaptability; no specialized operator required.
• Proprietary spiral air inlet distributor to ensure even air volume around tower and minimize wall sticking.
• Convenient sealed cleaning door on tower body for full cleaning and reduced material sticking.
• Mirror-polished inner tower (no dead angle) to avoid sticking and ease cleaning.
• Controllable inlet air temperature to satisfy material drying processes.
• All pipes and cyclones equipped with quick-opening cleaning ports.
• U-tube electric heater design to reduce weld cracking from thermal expansion; aluminum-alloy fins improve heat transfer and efficiency.

Application
Suitable for drying liquid materials with low boiling point and high viscosity to produce powder or granules without damaging active ingredients.

Configuration (summary table)
NO. | Item Name | Specs | Material | Qty | Remark
1 | Feeding system - Peristaltic pump | P=0.55KW | — | 1pc | Pump for feed delivery

Hot air system:
1 | Air filter | Primary filter | SUS304 frame | 1 set | Primary filter
2 | Air filter | Medium effect filter | SUS304 frame | 1 set | Medium filter
3 | Electric heating | P=18kw | SUS304 | 1 set | U-tube heater, aluminum fins
4 | Hot air duct | — | SUS304 δ1.5 | 1 set | With insulation, matt finish

Drying tower system:
1 | Main tower | Diameter φ0.8m | SUS304 δ2.0 | 1 set | Inner mirror polished, outer matt
2 | Adjustable hot air distributor | — | SUS304 δ2.0 | 1 set | Mirror reflection
3 | Variable spiral inlet vortex | — | SUS304 δ3.0 | 1 set | Mirror reflection
4 | Electric high speed centrifugal atomizer | 1-5 (speed) | SUS304 / alloy | 1 set | P=0.75kw frequency control

Receiving system:
1 | Primary cyclone separator | LT-280 | SUS304 δ2.0 | 1pc | Long cone, quick opening
2 | Receiving bucket | — | Transparent plastic | 1pc | Collection container
3 | Induced draft fan | 9-19-4A | Q235A | 1 set | P=2.2kw

Control system:
Control cabinet SUS304 with color touch screen. Functions: inlet temperature display & automatic control; outlet temperature display; feed amount control; dynamic process display.

Technical specifications

• Water evaporation capacity: 5 Kg/h
• Electric heating power: 18 kW
• Inlet air temperature: 30 ~ 250 °C (adjustable per material)
• Outlet temperature: 60 ~ 90 °C (adjustable per material)
• Control: Color touch screen with inverter control; heating temperature accuracy ±1 °C
• High degree of automation
• Weight (net): 300 kg
• Overall size (L × W × H): 1300 × 1100 × 2000 mm
• Total installed power (indicative in configuration): 23 kW (power supply: 3 phase 380V/50Hz)
• Packing size: 1900 × 1300 × 2100 mm; Gross weight (packed): 400 kg