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.

 

Enquire Now

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.

 

Enquire Now

How to Determine the Moisture Content in Paddy?

Moisture content, as we define it, is the weight of water in rice or paddy expressed in percentage. In post-harvest handling, MC is stated on a wet basis (MCwb). Simply put, it’s percentage of water in a wet grain.
The importance of measuring moisture content

It’s imperative to determine accurate moisture content. This is done with a view to effectively manage and market paddy, for each purpose requires different moisture content.

Moisture content, as we define it, is the weight of water in rice or paddy expressed in percentage. In post-harvest handling, MC is stated on a wet basis (MCwb). Simply put, it’s percentage of water in a wet grain.

The importance of measuring moisture content

It’s imperative to determine accurate moisture content. This is done with a view to effectively manage and market paddy, for each purpose requires different moisture content.

For e.g. 18% MC for storing grains up-to 2 weeks, 9% for long-term storage, etc.

Inaccurate moisture testing could lead to:

  1. Grain loss if excessively dried
  2. Increased drying costs and paddy loss if milled at high moisture content
  3. Lower head rice, when milled at wrong moisture content
  4. Weight loss when dried excessively
  5. Mold development
  6. Heat buildup in the grain
  7. Pest infestation
  8. Discoloration
  9. Reduced yield
  10. Loss of germination

How to measure paddy moisture content?

There are two widely used methods to measure moisture content. These are:

1. Primary Method: It is based on weight measurements and is ramified into 2 steps:
– Oven method
– Infrared method
2. Secondary Method: It involves measuring the electrical traits of grains using an electronic instrument

There are a number of different portable moisture meters available in the market. One simply has to make sure that the chosen meter is suitable for harvesting paddy or grains to be milled, depending on whatever you’re planning to do.

Let’s take a look at the moisture content required for different post-production activities:

Paddy Harvesting

When harvesting paddy, one needs to keep in mind that lower moisture content can possibly lead to grain shattering and higher moisture content can lead to losses owing to poor grain quality.
– Ideal moisture content: 20-25%
– Primary losses: Grain shattering and poor quality

Paddy Threshing
– Ideal moisture content: 20% for manual threshing and 20-25% for mechanical threshing
– Primary losses: Breakage/cracking, grain damage and partial threshing

Paddy Drying

The drying process should begin within 24 hours of harvest. Otherwise, there’s a very high possibility of quality deterioration and grain damage.

It should also be noted that seeds should be dried well below 12% moisture content while grains to below 14%.
– Ideal moisture content: 14% or lower
– Primary losses: Discoloration, spoilage and fungal infestation

Rice Storage
– Ideal moisture content:
14% or less if it’s to be milled or stored or a month
Less than 13% for storage up-to 12 months
12% for seed storage
– Primary losses: Pest infestation, fungal infection, loss of germination, etc.

Rice Milling
– Ideal moisture content: 13-14%
– Primary losses: Cracking and breakage

I sincerely hope this post would be helpful to all those planning to venture into the business of rice processing and milling. For any further assistance, feel free to contact Nextech Agri Solutions, one of the best Rice Mill Consultants in India.

 

Enquire Now