Design of Rice Processing Plant Project

As the world’s most popular staple food, rice is widely cultivated. However, paddy cannot be eaten in its raw form and needs to be processed. Rice mills are nowadays built with state-of-the-art technologies to yield excellent quality of rice-efficiently and with rich returns.

As the world’s most popular staple food, rice is widely cultivated. However, paddy cannot be eaten in its raw form and needs to be processed. Rice mills are nowadays built with state-of-the-art technologies to yield excellent quality of rice-efficiently and with rich returns. A high degree of automation, as well as a smooth and simple process flow, ensures minimum wastage and maximum output. Multiple processes like Paddy’s Cleaning, Hulling, Whitening, Polishing are needed to be designed perfectly to give high returns on investment as well as tasty and flavorful rice for the consumers. Being the leading edge Rice Mill Consultants in India and abroad, Nextech Grain processing & Engineering Solutions Pvt. Ltd. is in demand wherever expert consultancy is required in the field of Design of Rice Processing Plants.

The Strengths Of Total Capability:

The rice processing plant is a marvel of modern technology as it employs a high degree of automation. The processes need to flow into each other with optimum efficiency. Besides, there are numerous factors to be considered while building a completely new plant. As the premiere Rice Mill Engineers & Designers, we have expertise in all the fields like designing and procuring needed before manufacturing, erecting, as well as everything necessary for commissioning complex, advanced installations with world-class technologies. The customer-centric services ensure technicians and engineers are in place, that extend close interaction & critical advice at each stage. We offer the entire set of expertise needed to set up the highly automated plant including grain handling, grain processing systems, storage, packing, power supplies and building services requirements. Not surprisingly, we are renowned as one of the leading edge Rice Milling Plant Consultants in Nigeria, Bangladesh, South Africa, and Nepal.
Even before starting the process, Nextech has abundant experience for appraising or vetting of total engineering processes and structures executed by the third party. This covers all processes and structures involved in procurement, processing, storage, and packaging. Supremely positioned as an established Rice Mill Project Consultant, we even extend services for shipment, port handling or offloading if required.
At the next stage, we monitor the execution so that the designs agreed upon are in place on the ground. In fact, apart from extending the finest Rice Processing Technology, we consider to be on the same page and in agreement in order to collaborate with client’s team, views and vision as one of our great accomplishments. At each stage, utmost care is taken to implement the highest quality standards whether it is in regard to materials or construction. Special emphasis is given to the health and safety plans and that it complies with the project as outlined at the beginning.

 

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Raw Paddy Drying Solutions by Nextech

By “drying” is meant the phase of the post-harvest system during which the product is rapidly dehydrated to a so-called “backup” moisture. This desiccation is intended to sufficiently reduce the moisture content of the grain to ensure favorable conditions for storage or subsequent processing of the product.

By “drying” is meant the phase of the post-harvest system during which the product is rapidly dehydrated to a so-called “backup” moisture. This desiccation is intended to sufficiently reduce the moisture content of the grain to ensure favorable conditions for storage or subsequent processing of the product.

It is possible to obtain the drying of the products by circulating more or less hot air in a mass of grains. In its movement, the air gives heat to the grains, absorbing moisture from the most superficial layers.

The water present in the surface layers of the grains evaporates much more efficiently and more rapidly than that of the inner layers.

It is therefore much more difficult to lower the water content of a product from 25% to 15% than from 35% to 25%. It would be wrong to think that this difficulty can be overcome by carrying out a rapid drying at a high temperature. Indeed, such drying conditions generate internal tensions, producing small cracks that can lead to breakage of grains during subsequent treatments.

For the drying of grains, the methods employed are, in essence, two in number:
– Natural drying
– Artificial drying

Both have advantages and disadvantages, and there is no ideal way to meet all needs.

Natural Drying

The method of natural paddy dryer, to which the techniques illustrated in the section on pre-drying operations also relate, consists essentially in exposing the beaten products to the air (in the sun or the shade). To obtain the desired moisture content, the grains are spread in thin layers over a drying area, where they are exposed to air (in the sun or the shade) for a maximum of 10-15 days. To promote uniform drying, the seeds should frequently be stirred, especially if they are exposed to direct sunlight. In addition, for the drying to be sufficient, the relative humidity of the ambient air must not exceed 70%.

Artificial Drying

The introduction of high-yielding crop varieties and the gradual mechanization of agriculture now make it possible to harvest large quantities of grain in a short period. In the tropical and subtropical humid zones, given the unfavorable weather conditions at the time of harvest, it is often difficult to safeguard the quality of the products.

To meet the need to increase agricultural production, it is, therefore, necessary to dry the products in a relatively short time, and whatever the ambient conditions. Thus, paddy dryer plant must be used. This method consists essentially in subjecting the grains to a forced ventilation of more or less heated air. It requires the use of individual devices called “dryers.”

Artificial Raw Paddy Dryer

From the point of view of construction, the essential elements of a rice dryer machine are:

– the dryer body, which contains the grains to be dried;
– The hot air generator, which allows heating the air drying;
– The fan, which allows the circulation of drying air in the grain mass.

For the artificial drying of the grains, two types of dryers are used:

– Static or batch dryers;
– Continuous dryers.
The former is inexpensive and only treat small quantities of grain; they are therefore more suited to the needs of small and medium-sized collection and processing centers.

As for the latter, they are high flow paddy drying technology that requires more complex infrastructure, additional equipment and especially a particular planning and organization. They are therefore more suitable for large centers, silos or shops, where very large quantities of product are processed. Nextech Agri Solutions is a reliable brand if you want to purchase agricultural solutions.

 

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Different Paddy Parboiling Methods in India

Parboiling involves partial cooking of rice paddy, and soaking, gelatinizing, and drying before milling. The main objective of parboiling is to impart hardness to the grain (without hampering the husk) so that the grain can withstand the milling operations.

Parboiling Methods in India involve partial cooking of rice paddy, and soaking, gelatinizing, and drying before milling. The main objective of parboiling is to impart hardness to the grain (without hampering the husk) so that the grain can withstand the milling operations. The paddy is parboiled in the hull to soften the kernel so that the surface starch, bran, and other components can blend. After this, the water from the rice is drained and the rice is dried with steam. The dried rice then undergoes machinery procedures to polish the kernels and remove the hull.

 

There are three different types of Paddy Parboiling methods in India, namely:

  1. Single-staged parboiling system which is meant for small grain and boiled cream-colored rice

  2. Two-staged parboiling system which is meant for small grain, boiled and steamed white-colored rice

  3. Three-staged Parboiling System which is meant for long grain rice like Basmati, etc.

 

A quick synopsis of Paddy Parboiling Methods in India

The raw paddy is first cleaned and then transferred to the soaking tank paddy storage bin. The raw paddy (only if its grain is long or of medium size) is then steamed for two to four minutes which is followed by the moving of processed paddy to the soaking tanks.

 

When the rice is in paddy form, it is soaked in water at an ambient temperature of 20-30°C and takes 36 – 48 hours to reach the requisite moisture content of 30%. On the other hand, if the paddy is soaked at a temperature of 60-65°C (hot water soaking), it reaches the moisture level in a mere two to four hours. One advantage of hot water soaking is that it reduces the steaming time which completes the Parboiling Process, quickly.

 

The smell, color, taste, and solubility of the components of rice depends on the water temperature and the duration for which it is soaked in the water. The timing must also not be too long and the temperature also must not be too high otherwise the components would dissolve in water, the seeds would start germinating, and starch fermentation would occur.

 

 

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