The Advanced Paddy Drying System

Paddy Drying is the basic process of yielding rice. During the paddy arrival season, the moisture percentage in freshly harvested paddy is 18% and above, the paddy should be dried to bring down the moisture percentage of 14% which is ideal for storage purpose. After the process of parboiling and steaming the moisture increases to 35% which is actually wet paddy. So to reduce the moisture from it various steps are involved such as field drying, sun drying, heated air drying, in-store drying.

If moisture not removed from the paddy, the quality of grain decreases. Instead of sun drying and traditional drying methods, Nextech Solutions offers advancement with Paddy Drying System such as installation & design of paddy dryer machine. This helps in the drying process efficient than traditional drying methods for safe storage.

A Paddy Dryer Machine is designed to suit all the grains. It comes with a blower and furnace digitalized with meters for controlled drying, with the air flow circulation to dry the paddy grains in a closed chamber. The machine works with two chambers or tanks one for filling in and another for discharge. This Paddy dryer Machine can be efficient Paddy Drying Solution for batch type drying and continuous drying processes.

Features of Advanced Paddy Drying Machine.
  • It is designed to suit up all the paddy grains.
  • The design includes quality material such as stainless steel which doesn’t affect any harm to the paddy.
  • Rice Mill Consultant can help you to reap all the benefits of the Paddy Dryer Machine, to use the husk, wood or biomass obtained.
  • It comes with PLC monitor system to monitor and control the temperature for the drying process.
  • Efficient drying as to reduce 5% moisture, the process is likely to run for 5 hours.
  • Can reduce the labor cost, as minimal manpower is required.
  • Also, the maintenance of this Grain Dryer is very low.
  • The Grain Dryer is designed to provide uniform steaming to maintain the quality of the paddy grains.

 

We at Nextech Solutions help you out with Rice Milling Plant Layout Design with our team of Rice Mill Engineers and Designer which will help to plan about Paddy Dryer Machine Setup. This counseling and planning about Paddy Drying Solutions with Rice Mill Engineers and Designers will help you with much profitable business.

 

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Problems in High Moisture Paddy

Rice is perhaps the grain that has been cultivated for a very long time. It is occupying approximately 9% of the total arable land. It is the second cereal in significance for the human diet, after wheat. It is at present the food base of a two-third population of the world.

Rice is perhaps the grain that has been cultivated for a very long time. It is occupying approximately 9% of the total arable land. It is the second cereal in significance for the human diet, after wheat. It is at present the food base of a two-third population of the world.

It is well known that paddy drying is essential for its safe storage. You can expect a better storability of the paddy if the moisture content is within safe limits. As a rule of thumb, 1 % decrease in the moisture content of the grain doubles the storage life. But drying of paddy is not easy. The high humidity is a serious factor obstructing appropriate drying and storage of grains.

A certain level of moisture content should be maintained in rice and this depends on the time for which it is going to be stored.

  • 18% for 2 weeks
  • 14% or less a month
  • 13% or less for 8-12 months
  • 9% or less for long-term storage

There are many processes of drying:

    1. Field drying: It is done in a field after cutting rice panicles in fields and then stacking them into piles and racks. It is most primitive of them all.

 

    1. Sun drying: This labor-intensive method is preferred by small farmers. This is inexpensive way of drying paddy

 

    1. In-store drying: Paddy is dried during storage by controlling the level of humidity in the air. It is a slow process.

 

  1. Batch dryer: It may lead to uneven drying and usually used by farmers and rice millers.

Storage of high moisture grain is a grave problem farmer facing. Traditional methods of sun drying are still in practice but have sure disadvantages such as

  • unreliability
  • uncontrolled heating of grains
  • thermal stresses leading to grain fissures
  • vulnerability to infestation in open
  • Losses due to birds

Use of mechanical paddy drying offers a number of advantages over old-school methods and some of the benefits are as follows –

  1. Sustaining the quality of paddy
  2. Safe drying even during rain and at night
  3. Convenient control of drying parameters
  4. Significant saving on the labor cost

For the best drying, you must take advantage of the technology. You must go to the best paddy drying providers. Nextech Solutions have experts which provide complete solutions related to rice.

 

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Paddy Drying Process In Rice Mills

At the time of harvest, the moisture content of the rice grains ranges between 18 -25%. Post the harvest, the most critical operation is paddy drying. Drying reduces the moisture content in the grain which is a requisite if it is to be stored. Delaying the drying process or drying it unevenly would result in a qualitative loss.

At the time of harvest, the moisture content of the rice grains ranges between 18 -25%. Post the harvest, the most critical operation is paddy drying. Drying reduces the moisture content in the grain which is a requisite if it is to be stored. Delaying the drying process or drying it unevenly would result in a qualitative loss. Storing moist grains generally leads to grain discoloration or induces mold development. It further escalates the chances of pest attacks, regardless of the storage facility used. Higher moisture content also decreases the germination rate of rice seeds. The moisture should be further reduced if grains are to be stored for a longer duration.

Before starting with the drying process, certain guidelines need to be followed. The grains should be cleaned so as to avoid uneven Drying and Wet spots. Grains should be dried immediately after the harvest. Depending upon the storage duration, a certain level of moisture content should be maintained.
– 18% for a maximum of 2 weeks
– 14% or less if it’s to be stored for a month/if it is to be milled
– 13% or less if it’s to be stored for 8-12 months
– 9% or less for long-term storage

Grains with different moisture content should not be mixed if cracking is to be avoided.

The drying process involves different methods. Each method has its own elementary advantages and disadvantages.

1. Sun Drying: It is still a preferred technique in many parts of the world mainly because of its low cost. This method, however, is labor-intensive and should not be adopted if you plan to mill the grains.

2. Field Drying: This involves cutting rice panicles in the fields and stacking them into racks and piles. This method sometimes causes a massive heat build-up within the stacks and deteriorates the grains rapidly.

3. In-Store Drying: Grains with the moisture content below 18% are dried slowly inside storage bins. These bins are equipped with aeration components and pre-heated air. It controls the humidity level of the air. It is a slow and gentle drying process and takes from days to weeks.

4. Heated Air Drying: This technique involves high temperatures to rapidly dry the grains. It can be stalled whenever the desired moisture content is achieved. It can be further ramified into 3 categories:

a. Batch Dryer: Used by farmers and small rice millers, this is a labor intensive method and leads to uneven drying.

b. Re-Circulating Batch Dryer: This is put to use by commercial rice millers and cooperatives. It requires moderate capital investment.

c. Continuous Flow Dryer: Generally used by large commercial facilities.

 

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