drying

Examples of mechanical dryers

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See also: IRRI rice fact sheet

IRRI related video on Paddy Drying:

Many mechanical dryers have been developed for rice but only very few did get commercialized succesfully. This page and it's sub pages provides information about some dryers that became popular in Southeast Asia. It does not constitute a comprehensive overview of all possible drying technologies. The dryers featured here are not neccessarily the best technical solution but, because they are accepted by the users, they seem to offer a good compromise between drying cost and benefits in terms of higher quality and weather risk avodiance in their specific settings.

Overview on commercially available dryers

(Click on the picture for a detailled description).

Target group

Dryer Description
Farm level SRR-dryer-Vietnam_small

Low cost dryer (SRR and STR dryers)

Country: Vietnam
Source: Nong Lam University (NLU), Ho Chi Minh City
Capacity: 1t
Drying time: 2 days
Cost: US$ 100
Installed units in 2009: more than 1,400

Contact: NLU

Drying contract service provider

Small to medium rice mills
Flat-Bed_Dryer_Vietnam_small

Vietnamese Flat bed dryer

Country: Vietnam
Source: Nong Lam University, Ho Chi Minh City
Capacity: 4-10t
Drying time: 6-8h
Cost: US$ 1,500
Installed units in 2009: more than 6,000

Contact: NLU

Maligaya flat bed dryer

Source: NLU - PhilRice cooperation
Capacity: 4t
Drying time: 6-8h

Contact: PhilRice

Flat_Bed_Dryer_Cambodia_small

Cambodian flat bed dryer

Source: NLU, Vietnam through IRRC
Capacity: 4t
Drying time: 6-8h
Installed units until 2009: 7
Installed units until 2012: more than 100

Contact: MAFF

Flat_Bed_Dryer_Myanmar_small

Myanmar flat bed dryer

Source: NLU, Vietnam through IRRC
Capacity: 4t
Drying time: 6-8h
Installed units until 2009: 7
Installed units until 2012: more than 350

Contact: Pioneer Postharvest Development Group

Flat_Bed_Dryer_Indonesia_small

Indonesian box dryer

Source: ICRR, Sukamandi
Capacity: 3.3t
Drying time: 6-8h
Installed units until 2009: 200

Contact: Indonesian Center for Rice Research, Sukamandi

Large rice mills and processors RE-circulating_batch_dryer_small

Commercial re-circulating batch dryer

Source: Various companies
Capacity: 4-12t/batch
Drying time: 6-8h

Small seed dryers IRRI_Flat_Bed_Dryer_small

IRRI flat bed dryer

Source: IRRI
Capacity: 1t
Drying time: 6-8h
Note: This is a design from the 1970s. Thousands of units were installed over the years but the design is outdated. It can still be used for drying seeds or demonstation purposes since it can be made portable.

Contact: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

IRRI_Seed_dryer_small

IRRI seed dryer

Source: IRRI, based on the Vietnamese SRR dryer
Capacity: 200 kg
Drying time: 12-24h
Note: This is a prototype seed dryer for very small seed samples. The IRRI design uses a rice husk stove as heat source but that is very labor intensive. A coal stove using brickets is more appropriate.

Contact: This e-mail address is being protected from spambots. You need JavaScript enabled to view it

 

IRRI Related Videos


 

 

Low-cost and simplicity, the Flat bed dryer