Rice Polisher Working Principle and Characteristics

Update:07-05-2018
Summary:

Rice polisher works: First, the brown rice was milled a […]

Rice polisher works:

First, the brown rice was milled and then milled. After the rice was sprayed with water and rice, the binding force between the endosperm and the rice bran was reduced. Since only a small amount of water was added, only a layer was formed on the surface of the rice grain. The thin film, combined with a short polishing time, has no effect on the moisture content of the rice), and then enters the polishing chamber of the polishing machine, and the surface of the rice grain is polished by friction under a certain pressure and temperature. Through the polishing treatment, not only the floating surface of the rice grain can be cleared, but also the starch is pregelatinized and gelatinized on the surface of the rice starch, and the starch gelatinization makes up for cracks, thereby obtaining the appearance of crystal color and smooth appearance, improving the storage performance and practicality of the rice. Quality, and therefore polished rice is very necessary.

The main structural features of the rice polisher and its role as well as the design requirements:

The main structure of various types of rice polishing machine is similar to the main structure, mainly consists of the spray water part, the polishing part, the water supply system and the air blowing mechanism. The feed device and the discharge device are also important devices for various types of rice polishing machines:

1.spray water part Spray water part by the nozzle, nozzle cleaner, water mixer, feeding spiral, stirring roller and other components. When the material passes through the flow meter, the flow rate is measured, thereby controlling the amount of water added.

2.Polishing part The polished part is the core part of the rice polishing machine. It is composed of a feeding screw, a polishing roller, an octagonal screen cylinder composed of eight meter screens, and a discharge pressure gate. The polishing roller is divided into iron roller and sand roller according to the nature of the material. The design should make it clear that the roller line speed is higher than the iron roller line speed (iron roller line speed is about 5m/s, the polishing pressure is higher, the average value is 0.1MPa The roller speed is about 15m/s, and the polishing pressure is low, with an average value of 0.02MPa).