Rice Mills Processing

Rice Mills

Processing

The basic goal of industrial rice milling is transforming paddy rice into white rice, while giving it a good appearance and selecting the best quality grain for human consumption.

When rice is harvested it has a non-edible husk or hull surrounding the kernel. At the rice mill, all stalks and other foreign material are removed from the rough rice by a variety of specialized machinery.

White Rice

Cleaning

Removes foreign objects, such as hey, stone, tree stump, from the paddy.

Hulling

Rubs excessive husks off cleaned paddy. On removed, brown rice is separated from the husks though ventilation process and mechanical equipment leaving pure brown rice available for milling.

Milling

The milling, or whitening, stage removes the bran layer from brown rice. The modern multi-break, vertical whiteners use both abrasion and friction to gently and efficiently convert brown rice to milled white kernels. The bran layer is by air ventilation, which sucks in the brand layer process usually takes 2 to 3 cycles, depending on the required milling degree.

Polishing

Smoothing and brightening a surface of rice grain by a roll or series of rolls.

Grading

Separates milled rice (mixture of different sizes: Whole grain, head rice, and broken rice) by a sieve grader include several sizing techniques.

Sorting

Removes rice defects, such as discolorations, yellows, immatures (green), chalky, peck, seeds, red rice, glass, stones. Add value to white rice, parboiled rice to ensures that only the cleanest rice is passed.

Pack / Storage

The finished rice will be packed and stored in individual bads, according to its grade, and the rice is ready for delivery to customers.

Parboiled Rice

Parboiled rice is produced using a steam pressure process prior to milling. Rice is parboiled in the hull which softeners the kernel, allowing the surface starch,bran and other components to commingle.

The water is then drained and the rice is carefully steam dried. The dried parboiled rice is sent through machines which remove the hull and polish the kernels.

CLEANING

Paddy Cleaning

In the first step the paddy is cleaned to remove impurities and the lighter grain.

STEAM GENERATION

Steaming and Initial Drying

Steaming and initial drying are carried out in a rotary autoclave fitted with a steam jacket and coils for heating heating the paddy.

SOAKING & STEAMING

Soaking

Soaking takes place in stationery tanks, applying first vacuum and then high hydrostatic pressure using water at a controlled temperature.

FINAL DRYING

Final Drying

Final drying performed in the continuous flow vertical dryer getting adequate moisture to the following milling process

Brown Rice

Brow rice processing involves passing the rough rice through sheller machines which remove the hull, producing brown rice with the bran layers still intact around the kernel.

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Cleaning	Removes foreign objects, such as hey, stone, tree stump, from the paddy.
Hulling	Rubs excessive husks off cleaned paddy. On removed, brown rice is separated from the husks though ventilation process and mechanical equipment leaving pure brown rice available for milling.
Milling	The milling, or whitening, stage removes the bran layer from brown rice. The modern multi-break, vertical whiteners use both abrasion and friction to gently and efficiently convert brown rice to milled white kernels. The bran layer is by air ventilation, which sucks in the brand layer process usually takes 2 to 3 cycles, depending on the required milling degree.
Polishing	Smoothing and brightening a surface of rice grain by a roll or series of rolls.
Grading	Separates milled rice (mixture of different sizes: Whole grain, head rice, and broken rice) by a sieve grader include several sizing techniques.
Sorting	Removes rice defects, such as discolorations, yellows, immatures (green), chalky, peck, seeds, red rice, glass, stones. Add value to white rice, parboiled rice to ensures that only the cleanest rice is passed.
Pack / Storage	The finished rice will be packed and stored in individual bads, according to its grade, and the rice is ready for delivery to customers.

CLEANING	Paddy Cleaning In the first step the paddy is cleaned to remove impurities and the lighter grain.
STEAM GENERATION	Steaming and Initial Drying Steaming and initial drying are carried out in a rotary autoclave fitted with a steam jacket and coils for heating heating the paddy.
SOAKING & STEAMING	Soaking Soaking takes place in stationery tanks, applying first vacuum and then high hydrostatic pressure using water at a controlled temperature.
FINAL DRYING	Final Drying Final drying performed in the continuous flow vertical dryer getting adequate moisture to the following milling process