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Common three rice milling methods
- Dec 19, 2017 -

Common three rice milling methods


Milling is the use of physical and mechanical methods to remove the brown rice cortex, even with rice milling to make it meet the requirements of white rice process is to ensure the quality of rice, increase the rate of rice, reduce power consumption an important part, it is direct Affect the entire rice mill economic benefits. According to the nature of the role of mechanical rice milling, rice milling can be divided into grinding and grinding white, grinding and grinding mixed White White grind three.

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1. Wipe away from the white: Rice milling machine depends on the rice machine propulsion and flip, resulting in rice and rice, rice and white room components collide, squeezing and friction, so that the brown rice cortex and endosperm to achieve the white purpose. Wipe-off rice mill roll iron roller, rice milling machine line speed is generally about 5 m / s. Grinding the same amount of rice, the grinding chamber volume smaller than other types of rice mills, commonly used in high-precision rice processing, and more use of multi-machine combination, light grind more than white mill, rice grind white room by the larger Pressure (also called pressure grind white), easy to produce broken rice in the milling process, it is not suitable for crushing hard and dry cortex, grain crisp, poor intensity indica rice, commonly used in feed mill, rapeseed mill , Peeled wheat, made of finished products, smooth surface, bright color.

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2. Grinding grinding white: rice milling with high-speed rotation of the surface of the emery roller countless hard, tiny, sharp sand, the rice cortex continue grinding, so that the cortex split, spalling, the brown rice grind white. Grinding rice mill rollers conical or truncated conical sand roller. Roller speed is generally about 15 m / s. Larger machine, grinding white pressure smaller, resulting in less broken rice, suitable for grinding cortex hard and dry, loose structure, poor strength of the powdery rice. However, grind grinding will leave the surface of rice grain peeled scar marks. Therefore, finished products finished surface finish and color is poor.

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3. Mixed grinding white: It is a kind of grinding and peel-based, rub-off peeled supplemented by a mixed white grinding method, which combines the advantages of the above two grinding white way, the mixing mill roll for the sand roller Or sand iron roller combination, roller speed is generally about 10 m / s. The role of grinding its ground to grinding, rubbing supplemented. Moderate. Process effect is better.