How to process the byproduct in rice mill plant?

The by-products in rice mill are mainly rice bran and broken rice mixture.
There are certain differences between Rice bran and broken rice in terms of particle size and suspension speed, which can be separated by sifting and air separation. 
Rice bran and the broken rice difference in suspension speed is greater than the particle size difference, so the sorting method is more effective than the siftingg method;
The typical equipment of air separation is Chaff rotary; Common separator yield is 150KGPH, 300KGPH, 450KGPH, 600KGPH.
100kg rice can get 5-8% rice bran. Rice bran can be used to process rice bran oil for human,which has various nutrients like Vitamin E, sterol, oryzanol etc;Rice bran oil is good to reduce the blood pressure. 
The broken rice can be used to make rice food product, animal feed, brewery factory etc.
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