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Nitrogen Protected Spray Dryer

Heat conduction oil is adopted to heat the drying medium nitrogen rapidly;
The discharging method adopts tower bottom, cyclone and cloth bag dust collector.
Equipped with PLC and touch screen precise control, more convenient operation.
In order to improve the reliability and service life of the equipment, the main supporting components adopt high-end imported brands.
Mirror polishing of tower and pipeline.

Closed circulation spray dryer for herbal medicine

technical parameters 

1、Materials to be dried:   herbs

2Solvent composition:   alcohol

3Circulating gas:        nitrogen

4Oxygen content:       about 1.5% (nitrogen purity 99.99%)

5Slurry temperature:     room temperature

6Product appearance:    200-500 mesh  

7Moisture content:      2%                                                                                                      

8Heating mode:         heat oil and nitrogen directly

9Atomization mode:     centrifugal atomization

10Collecting method:    tower bottom, cyclone, cloth bag collection

11Exhaust gas treatment:  condensation tower condensation, solvent recovery

12、Recovery of drying tower:  90-95%

13、Alcohol recovery rate:   about 85%

14、Nitrogen temperature at condenser outlet: < 5

15、Condensate temperature  -5 to -10

17、Total system power - 20KW


The equipment's safety protection (such as platform, railing, etc.) and explosion proof design meet the national standards;

This equipment adopts centrifugal spray drying and granulation technology, which is specially designed for the drying and granulation of metal powder materials. It has the characteristics of less wall attachment, high yield, fast speed, low energy consumption and strong process adjustment. 

1.Product moisture content is too high
Exhaust air temperature is the main factor affecting the moisture content of finished products, so the reason for the high moisture content of products is generally the exhaust air temperature is too low. And the exhaust air temperature can be adjusted by the amount of feed. Therefore, the corresponding measures are appropriate to reduce the amount of feed, in order to improve the exhaust temperat...more
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