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Microalgae Drum Dryer

Views: 118     Author: Stone Chen     Publish Time: 2021-11-19      Origin: Site

Microalgae have recently attracted considerable interest worldwide, due to their extensive application potential in the renewable energy, biopharmaceutical, and nutraceutical industries. Microalgae are renewable, sustainable, and economical sources of biofuels, bioactive medicinal products, and food ingredients. Several microalgae species have been investigated for their potential as value-added products with remarkable pharmacological and biological qualities.


HG series drum dryer (or roller dryer) is a continuous indirect heating drying processor. The dryer body consists of rotary drum heated by steam, applicator rollers, scrapper and exhaust hood. Liquid raw meterials are fed onto the rotary drum from the top. With the kneading effect of applicator system, raw materials are evenly spread onto the heated surface of rotary drum. Moisture evaporates very quickly. Drying process is done within a single rotation of the drum and the dried product is scrapped off with the knife.


HG series drum dryer (or roller dryer) with its continuous indirect drying method, allows short heat retention time while evaporating all the liquid within a single rotation of the drum. It not only virtually eliminates the risk of damaging the product but also enables the product to keep its unique properties like taste, smell, texture etc. Drum dryer is unique for drying viscous, pasty and sticky materials in food, chemical and pharmaceutical industries.




Top feed drum dryer has the following advantages for drying microalgae: 


1) High heat efficiency: Heat loss is mainly caused by thermal radiation. Heat efficiency can be as high as 90%.

2) Short drying time: The drying process only takes 10-15 seconds. So the original color and nutritional components can be well preserved. 

3) Uniform drying: Heat transfer direction and coefficient all over the drum surface are the same. And wet material can be evenly spread over the drum surface. Wet material can be uniformly dried.

4) Long life span: The drum is made by high-quality cast iron and coated with hard chrome plate to get perfect smoothness and hardness.

5) Flexible application: Drum surface temperature, rotating speed, wet material film thickness are all adjustable to satisfy materials with different moisture and drying time.

6) Compact size: The drying chamber is very compact in size. Only need small installation space.

7) Low operation cost: The whole machine is very simple and reliable. It can be used for many years with little repair and maintenance.

8) Highest hygienic standard: Indirect heating and the drum is completely covered can assure highest hygienic working condition and safety. 


S2

Hard chrome plated drum 

S3

Applicator rollers 

1-3

Drive system  

1-5

Scraper 

4

Dip-feed Drum dryer

21

Dip-feed drum dryer



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