what is Closed Loop Spray Dryer?
A closed loop spray dryer is a nitrogen‑circulated drying system specially designed for organic solvent liquid materials. It has full sealing, real‑time oxygen monitoring, solvent recovery, and explosion protection functions. It safely processes flammable, oxidizable, or toxic materials without emission risks.
Products Description
However, due to the potential flammability, spray drying of flammable organic solvents has always been difficult and prohibited. However, in many important new technology fields of research and application, there is an urgent need to spray dry or granulate organic solvents. Richsmart responded to this challenge and successfully launched a laboratory closed spray dryer suitable for drying organic solvents. For most organic solvents currently used in laboratories, the organic solvent spray dryer can safely, effectively and thoroughly dry them.
Why choose Rich Smart closed loop spray dryer?
Reliable Safety: Inert nitrogen circulation isolates oxygen; online O₂ monitoring & auto‑alarm functions to ensure safe operation.
Solvent Recovery: Built‑in condenser system recycles organic solvents, reducing cost & emissions.
Oxidation Protection: Ideal for oxygen‑sensitive materials to preserve purity & stability.
Precise Operation: 7''color touch screen, PID temperature control ±1℃, one‑key start.
High Yield: two‑fluid nozzle, high collection rate.
Wide Adaptability: 50–2000ml/h capacity for lab R&D & pilot production.
Core Features of closed loop spray dryer:
-Inert gas (N₂) closed circulation system
-Online oxygen concentration monitoring & alarm
-Dual‑condensation solvent recovery unit
-PID precise temperature control (30℃~250℃)
-Concentric two‑fluid nozzle with anti‑blocking needle
-SUS304 stainless steel contact parts
-Compact design for laboratory & pilot use
Technical parameters of closed loop spray dryer:
|
Product name |
Closed loop spray dryer: |
|
Voltage |
380V,50-60Hz (Cryogenic cooling circulation pump: 380V ) |
|
Outlet temperature |
40-150℃ |
|
Drying capacity |
50-2000ml/h |
|
Explosion-proof fan |
0-330 m/h adjustable wind speed |
|
Inlet air temperature |
30-250℃ |
|
Temperature control accuracy |
±1℃ |
|
Spray nozzle |
Standard nozzle: 1.0mm diameter. (0.5/0.75/1.5/2.0mm are optional) |
|
Type of spray head |
Two-fluid concentric spray head, equipped with automatic needle to prevent blockage |
|
Particle size after drying |
1~25um |
|
Drying time |
1.0~1.5 h |
|
Rated material handling capacity |
Large amount 2000ml/hr |
|
Small material handling capacity |
Small amount 50ml |
|
Drying chamber material |
SUS304 stainless steel |
|
3 stage cyclone separator material |
SUS304 stainless steel |
|
3stage collection bottle material |
SUS304 stainless steel |
|
Machine frame material |
SUS304 stainless steel |
|
Seal ring material |
PTFE/silicone |
|
Dry air source |
N2 (for organic solvents) Or compressed air (for aqueous solution) |
|
size |
800*950*1350mm |
|
7 inch color touch screen |
7-inch touch screen operation; bilingual interface in Chinese and English; with USB interface. |
|
Thermal Protection |
Special protection function: If the fan does not start, the heater cannot start. The air volume of the fan is adjustable. |
|
Nitrogen circulation system |
have |
|
Condenser |
2-way condensation |
|
High efficiency filtration system |
With filter collection bottle, filter: 100 mesh (optional filter mesh) |
Products Description
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Richsmart closed loop spray dryer combines professional design, reliable imported core components, full customization, and global after‑sales support. We provide safe, efficient, and compliant drying solutions for organic solvent applications.
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