Closed-loop Spray Dryer

Closed-loop Spray Dryer

Special equipment for organic solvent slurry

    The closed-loop spray dryer works in a closed environment,and the drying medium is an inert gas (generally N2).It is suitable for the drying of materials with organic solvents or materials that are prone to oxidation during the drying process.

Working principle

The system uses inert gas as the circulating gas,which has a protective effect on the dry material.The circulating gas undergoes the process of carrying moisture and dehumidifying,and the medium can be reused.


Features

1.Adopt rotary cutting air inlet technology and adjustable volute to ensure uniform distribution of materials and no reverse top.

2.The heat source can be electric heating,steam heating or a combination of various heating methods to ensure high efficiency and low consumption.

3.The whole machine is compact and beautiful in structure,easy to operate,the hot air chamber can be disassembled and cleaned,and the inlet air temperature can be adjusted and controlled.

4.Air jacket cooling system is adopted for the drying chamber and top parts to prevent the material from being melted and hung on the chamber.

5.The inner wall of the drying chamber adopts an air rotary blowing device to eliminate or reduce the sticking phenomenon.

6.The powder collecting system adopts dehumidification air blowing cooling technology to cool the product and prevent moisture absorption and agglomeration.

7.It has pressure and oxygen content on-line monitoring (closed-loop)and self-diagnosis control functions to ensure the safety of the drying process and has a high degree of intelligent control.

8.It with GMP production requirements,dry air cleanliness is better than 100,000 grades,easy to clean,and product quality is stable.

9.The closed-loop system uses nitrogen as the carrier to transfer heat and is used in a closed cycle,especially foroxidizable,flammable,explosive and harmful solvents,and realizes zero solvent discharge.


Technical parameter

ModelCSD-1CSD-3CSD-5CSD-10CSD-25CSD-50CSD-100
 Ethanol evaporation capacity (kg/h)135102550100
 Max air inlet temp (C)200 Control accuracy +1C
 Air exhaust temp(C)

40-100

 Heating metho Electricity or steam+electricity
 Max rotation speed (rpm)/240002400018000180001800015000
 Spray disc diameter (mm)喷嘴50508080120135
 Electric heating max power(kw)3.5915366390110
 Drying tower diameter (mm)22080011001400180021502560
 Accessory device

Circulation fan,Cyclone separator, Bag filter, Solvent recovery device

 Safety device

Oxygen concentration detector, pressure switch,pressure automatic regulation 

system, safety valve

 Outline dimensions (mm)According to specific requirements and workshop layout
 Dry powder yield (%)≥95

Other products

Centrifugal Spray Dryer

Suitable for drying heat-sensitive materials

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