Easy methods to use a dryer

What’s a dryer?

A dryer is a mechanical system or machine that removes the water from wet grains by forcing either ambient air or heated air by means of the grain bulk.

Why is proper utilization of a dryer essential?

Any delay in drying of wet paddy leads to fast deterioration of quality. A dryer that doesn’t perform well or is just not operated properly can cause a number of problems:

Prolonged drying time on account of inefficient air delivery or low temperature

Uneven drying of grains as a result of uneven airflow or very high temperature (batch dryers)

High fuel consumption as a consequence of ineffective air distribution or very high airflow rate

Low germination rate because of very high drying air temperatures

High number of broken grains due to mixing of dry with wet grains or because of moisture gradient

Fire hazard and hazard of carbon monoxide (CO) poisoning of operators from utilizing unsafe burners

What’s the proper way of drying?

For optimum drying, apply proper pre-drying administration and operate the dryer according to the manual.

Earlier than drying

Stop any delay in drying after harvest. If you happen to cannot dry the paddy to the desired moisture content material, a minimum of pre-dry it to 18%, which is safe for non permanent storage for up to weeks.

Clean the grains before drying to avoid uneven drying and wet spots.

Don’t mix grains with totally different moisture contents to avoid cracking.

Read the operator’s manual and familiarize yourself with the dryer operation.

Using the dryer

Load the dryer with wet paddy, considering the minimum load. Do not overload.

With very wet paddy or when paddy lots with different moisture contents are mixed, aerate or flow into the grains for 15−30 min before turning the heater on to reduce broken grains.

In a batch dryer with more than 30 cm grain depth, mix the grains no less than as soon as for more even drying.

Monitor grain temperature and moisture content material to stop excess temperature and over drying.

Dry paddy after harvest to 18% moisture content for storage up to two weeks.

Dry paddy for milling to 14% moisture content. Drying beneath 14% reduces weight and milling yield.

For eight−12-month storage, dry to thirteen% or less; for long-term storage exceeding 1 yr, dry to 9%.

Safety precautions

Always operate the dryer following the steps given within the manual.

Check burners or furnaces commonly to forestall fire hazards and excess CO production. Always have a fire extinguisher at hand.

Make positive that fuel reduce-off valves that disconnect the fuel provide in case of power cuts are functioning.

Guarantee proper ventilation within the working space to stop CO poisoning.

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