Rice Flour Processing Machine

Introduction

Rice flour (also rice powder) is a form of flour made from finely milled rice. Rice flour is a common substitute for wheat flour. It is also used as a thickening agent in recipes that are refrigerated or frozen since it inhibits liquid separation. Rice flour may be made from either white rice or brown rice. To make the flour, the husk of rice or paddy is removed and raw rice is obtained, which is then ground to flour.

Now the most common rice flour processing machine is roller mill. It is firstly designed by Hungarian in 1970s. It involved passing the grain between sets of spinning metal rollers. These mills operate by passing the grain between a series of paired counter-rotating rollers with fluted surfaces. The resulting crushed grain is sieved between each roller pair in order to separate the bran (coarse and brown in color - see image below) from the starchy endosperm (fine and white in color - see image below). The end product is a super-fine white flour.

Early roller mills were driven by steam engines, while modern examples are powered by electric motors. These mills are not only faster than traditional mills, they also produce a greater quantity of white flour of a higher quality. However, because of their higher speeds and more vigorous action there is a lot more damage done to the components of the flour. There are ways to reduce the damage and maintain a greater level of natural nutrients and milling technology is evolving to reduce the pressures and temperatures within the rolls. On the other hand, the fluted surface of roller mills breaks up starch molecules and giving the resulting flour a greater capacity to absorb water, ideal for the rice noodle making process.

Technical Parameters

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